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CLEAR

Claim-Linked Evidence Analysis and Review
Paper 2026.04.28_0009_AFD-127 Generated 2026-04-28 10:27 UTC Engine version UCOP current

CLEAR Overview

8
Full CLEAR
Surfaced alternative hypotheses
23
CLEAR
Claims run in CLEAR
1
Could not be evaluated
4
Unclear Baseline
Panels with unresolved baseline
7
Too UnCLEAR
General or supplementary claims

CLEAR Is Designed To Point Reviewers To The Main Structural Reasons A Claim Needs Closer Attention.

Methodology note

CLEAR evaluates whether the experimental design and control structure isolate the biological question sufficiently for the authors' stated claims to be justified. CLEAR does currently NOT evaluate the actual result, as in the differences between tested variables.

CLEAR works from figures, figure legends, methods, materials, and the Results section. It is intended as support for authors, reviewers, and editors, not as a publication verdict. This report is deliberately anonymised and intended to be read side-by-side with the manuscript provided.

Alternative Hypotheses

Surfaced HRAN/Full CLEAR hypotheses are shown here even when no claim is assigned to Full CLEAR, so the reasoning surface is not hidden by claim-routing mode.

Paper-level hypotheses (2)

Paper-level PH1_IDENTITY_1 Alternative Explanation Not Addressed by the Author S
The paper's central 'mixed stem cell-neuron' state may instead be a quiescent NSC program that selectively deploys neuronal/synaptic modules without qNSCs actually becoming neuronal.
Relevant panels: Figure 4C, Figure 4D, Figure 4E, Figure 5A, Figure 5B, Figure 5C
Mechanism: partial neuronal program vs bona fide neuronal identity
Why it survives: The paper defines the 'neuronal' identity of qNSCs primarily through a UCell neuron-score metric based on top neuronal genes from mature neuronal clusters, plus expression of neuronal/synaptic genes. However, selective deployment of neuronal gene modules is well-documented in non-neuronal cells (e.g., synaptic machinery in immune cells, neuronal transcription factors in stem cells). The paper's hard constraints confirm that both quiescent and reactivated NSCs retain stem-cell markers (deadpan, worniu, klumpfuss), meaning the cells never lose NSC identity. The paper does not test broader neuronal identity criteria such as electrophysiological properties characteristic of neurons, axon/dendrite morphology, or functional synaptic transmission from qNSCs. The neuron-score metric is a transcriptomic similarity measure, not a functional identity test. The distinction between 'qNSCs become neuronal' and 'qNSCs deploy neuronal modules while remaining stem cells' is the central novelty claim and remains unresolved.
Reviewer experiment: Test whether qNSCs satisfy functional neuronal identity criteria: electrophysiological properties (action potentials, synaptic currents), morphological features (axon/dendrite formation), or functional synaptic transmission. Alternatively, show that the neuronal gene program in qNSCs is qualitatively distinct from known cases of neuronal module deployment in non-neuronal cells.
Paper-level PH1_RELAY_1 Alternative Explanation Not Addressed by the Author S
Across the perturbation panels, posterior reactivation may depend on the activation state of anterior source cells and/or descending neuronal output in general, rather than on a specific propagated qNSC-to-qNSC relay mechanism.
Relevant panels: Figure 2B, Figure 2C, Figure 3B, Figure 3C, Figure 6D
Mechanism: shared upstream source-state / broad-output model vs specific propagated relay
Why it survives: This paper-level hypothesis synthesizes the convergent causal ambiguity across five perturbation panels. In every case (PTEN, AKT, Kir2.1, TrpA1, neuronal Kir2.1), the manipulation is expected to alter the state of the targeted anterior cells. The posterior phenotype could therefore reflect loss or gain of an upstream source state or descending neuronal output, rather than propagation of a specific signal. The paper does not include any experiment that factorially separates anterior NSC state from anterior neuronal output from posterior outcome. The paper's own conflict note acknowledges this ambiguity. The convergence of multiple panel-level candidates on this single axis elevates it to a high-severity paper-level concern.
Reviewer experiment: Factorially separate anterior NSC state, anterior neuronal activity, and posterior outcome. For example: (1) silence descending neurons while independently forcing anterior NSC reactivation via AKT; (2) force anterior NSC reactivation via a non-bioelectric, non-insulin method and test posterior effects; (3) directly activate posterior NSCs while anterior NSCs remain quiescent to test whether the relay is necessary or merely permissive.

Figure 1D (2 alternatives)

Panel-level P1_F1D_GR1 Alternative Explanation Partially Addressed by the Author S
The regional reactivation sequence could arise from anterior-posterior differences in nutrient/insulin access rather than an actively propagated inter-regional signal.
Relevant panels: Figure 1D
Mechanism: upstream gradient vs propagated relay
Why it survives: The paper states that insulin-like peptides are secreted from a glial niche, but does not demonstrate uniform spatial delivery or rule out regional differences in insulin receptor density, nutrient perfusion, or metabolic sensing. The time-course data in Figure 1D are equally consistent with a simple anterior-posterior gradient of insulin/nutrient exposure. The starvation and AKT/PTEN experiments in later figures manipulate the pathway but do not decouple regional access from relay propagation.
Reviewer experiment: Deliver exogenous insulin uniformly across the CNS (e.g., ex vivo culture with saturating insulin) and test whether the anterior-to-posterior reactivation sequence persists.
Panel-level P1_F1D_MK1 Alternative Explanation Partially Addressed by the Author M
The apparent anterior-to-posterior reactivation sequence could partly reflect regional differences in Worniu detection kinetics rather than true differences in reactivation onset.
Relevant panels: Figure 1D
Mechanism: readout/marker-kinetics confound
Why it survives: The paper uses Wor protein expression as the primary early reactivation readout. pH3 is also used but only captures mitotic entry, a later event. If Wor protein accumulation kinetics differ between brain lobe and VNC NSCs (e.g., due to regional differences in transcription rate, protein stability, or antibody accessibility), the apparent temporal sequence could be artifactual. The paper does not provide an independent early reactivation marker that validates the same regional sequence.
Reviewer experiment: Measure the regional reactivation time-course using an independent early readout such as EdU pulse-labeling or cell-size quantification and compare with the Wor+ sequence.

Figure 2B (1 alternative)

Panel-level P1_F2B_SS1 Alternative Explanation Not Addressed by the Author S
PTEN misexpression may impair posterior reactivation because it prevents the targeted anterior NSCs from entering the upstream active/reactivated state needed to emit some downstream cue, rather than because insulin-pathway state itself is the propagated coordinating signal.
Relevant panels: Figure 2B
Mechanism: source-cell state vs transmitted-signal identity
Why it survives: The experiment shows that PTEN in brain-lobe NSCs reduces VNC reactivation, but PTEN is expected to block reactivation of the targeted cells themselves. The paper does not report whether the brain-lobe NSCs in the PTEN condition remain quiescent. If they do, the VNC phenotype is fully explained by loss of an upstream source state without any inference about signal identity. The paper does not test whether a non-insulin manipulation that similarly blocks anterior NSC reactivation produces the same posterior phenotype.
Reviewer experiment: Score reactivation of the targeted brain-lobe NSCs in the PTEN condition. Also test whether a non-insulin manipulation that blocks anterior NSC reactivation (e.g., cell-cycle arrest) produces the same VNC phenotype.

Figure 2C (1 alternative)

Panel-level P1_F2C_SS1 Alternative Explanation Not Addressed by the Author S
Constitutively active AKT may rescue posterior reactivation because it forces anterior NSCs into an upstream active/reactivated state that then emits another cue, rather than because AKT/insulin-pathway activation itself is the propagated signal.
Relevant panels: Figure 2C
Mechanism: source-cell state vs transmitted-signal identity
Why it survives: Under starvation, constitutively active AKT in brain-lobe NSCs rescues VNC reactivation. However, AKT is expected to drive reactivation of the targeted cells themselves. The posterior rescue could therefore reflect any downstream consequence of anterior NSC activation, not specifically insulin/AKT pathway propagation. The paper does not compare AKT with an orthogonal method of forcing anterior reactivation.
Reviewer experiment: Drive anterior NSC reactivation via an orthogonal pathway (e.g., forced cell-cycle entry, CycE overexpression) under starvation and test whether posterior reactivation is also rescued.

Figure 5F (1 alternative)

Panel-level P1_F5F_CB1 Alternative Explanation Partially Addressed by the Author M
Pan-neuronal hig knockdown may impair NSC reactivation by broadly disrupting neuronal support or network output, not specifically by disrupting direct neuron-qNSC synaptic signaling.
Relevant panels: Figure 5F
Mechanism: cell-type breadth / indirect neuronal support
Why it survives: The elav-GAL4 driver targets all neurons. Hig is a synaptic cleft protein, and its pan-neuronal knockdown could broadly impair synaptic function, neuronal health, or network-level output. The paper does not restrict hig knockdown to the candidate contacting neurons or demonstrate that the phenotype is specific to the proposed direct neuron-qNSC interaction. The paper's other neuronal manipulation panels (e.g., Figure 6D) use similarly broad drivers, providing only partial constraint.
Reviewer experiment: Restrict hig knockdown to the candidate contacting neurons (e.g., using a more specific driver) and compare the phenotype with pan-neuronal knockdown.

Figure 6D (1 alternative)

Panel-level P1_F6D_BN1 Alternative Explanation Partially Addressed by the Author S
The Figure 6D phenotype may reflect a general requirement for descending neuronal activity or trophic support in posterior reactivation, rather than a dedicated relay of anterior NSC state.
Relevant panels: Figure 6D
Mechanism: broad neuronal support vs specific anterior-state relay
Why it survives: elav-GAL4,tsh-GAL80 targets brain-lobe neurons and their descending tracts. Kir2.1 silencing of these neurons abolishes VNC reactivation. However, descending neurons provide broad trophic and activity-dependent support to the VNC. The phenotype is equally consistent with loss of general descending neuronal drive as with loss of a specific relay of anterior NSC state. The paper does not decouple anterior NSC state from descending neuronal output. The paper's own hard constraint acknowledges that the driver includes descending tracts, which broadens the manipulation beyond a specific relay interpretation.
Reviewer experiment: Manipulate descending neuronal activity while independently controlling anterior NSC state (e.g., silence descending neurons while forcing anterior NSC reactivation via AKT) and test whether posterior reactivation follows neuronal output or anterior NSC state.

Analysis by Figure

All claims grouped by their target panel, in figure order — read alongside the manuscript.

Figure 1B (1 claim)

Variables: G2, G0 across Brain Lobes, tVNC, aVNC  |  Readout: % NSCs
C2 Unclear baseline
Tested claim
The 3:1 ratio of G2/G0 arrested qNSCs is maintained in the brain lobes and the thoracic VNC, whereas the abdominal NSCs are equally split between G2 and G0 arrest.
Authors claim
We found that the 3:1 ratio of G2/G0 arrested qNSCs is maintained in the brain lobes and the thoracic VNC, whereas the abdominal NSCs are equally split between G2 and G0 arrest (Fig. 1B).

Figure 1C-D (1 claim)

C3 Full CLEAR Needs Reviewer's attention
Relevant panels: Figure 1C, Figure 1D
Tested claim
qNSCs reactivate first in the brain lobes (4 h after larval hatching—ALH), followed by qNSCs in the thoracic (8 h ALH) and abdominal (20 h ALH) VNC.
Authors claim
We found that qNSCs reactivate first in the brain lobes (4 h after larval hatching—ALH), followed by qNSCs in the thoracic (8 h ALH) and abdominal (20 h ALH) VNC (Fig. 1C,D).
Graph used: Figure 1C-1, Figure 1D-1, Figure 1D-2
Why this needs reviewer's attention
The bundle shows region-by-time reactivation structure, but it does not explicitly resolve the claimed 20 h abdominal reactivation time.
Details
Baseline
none explicit in this image graph | 0 h ALH
Variables
8 h ALH across brain lobes, tVNC, and aVNC with Dpn/CycA/Wor immunofluorescence | G2-arrested qNSCs across brain lobes, tVNC, and aVNC from 0 h to 24 h ALH at 4-h intervals | G0-arrested qNSCs across brain lobes, tVNC, and aVNC from 0 h to 24 h ALH at 4-h intervals
Readout
Wor/CycA/Dpn immunofluorescence image | % NSCs reactivated (Wor+)

Alternative explanations

Alternative Explanation Partially Addressed by the Author S
The regional reactivation sequence could arise from anterior-posterior differences in nutrient/insulin access rather than an actively propagated inter-regional signal.
Mechanism: upstream gradient vs propagated relay
Reviewer experiment: Deliver exogenous insulin uniformly across the CNS (e.g., ex vivo culture with saturating insulin) and test whether the anterior-to-posterior reactivation sequence persists.
Alternative Explanation Partially Addressed by the Author M
The apparent anterior-to-posterior reactivation sequence could partly reflect regional differences in Worniu detection kinetics rather than true differences in reactivation onset.
Mechanism: readout/marker-kinetics confound
Reviewer experiment: Measure the regional reactivation time-course using an independent early readout such as EdU pulse-labeling or cell-size quantification and compare with the Wor+ sequence.

Figure 1D (2 claims)

Variables: Brain lobes, tVNC, aVNC, G2, G0 across Hours After Larval Hatching (ALH)  |  Readout: % NSCs reactivated (Wor+)
C4 Full CLEAR Sufficient
Tested claim
This does not account for the anterior-to-posterior sequence that begins in the brain lobes.
Authors claim
We showed previously that G2-arrested cells reactivate before G0-arrested cells (Otsuki and Brand, 2018), but this does not account for the anterior-to-posterior sequence that begins in the brain lobes (Fig. 1D).
Graph used: Figure 1D-1, Figure 1D-2
Details
Baseline
0 h ALH time-course baseline for brain lobes, tVNC, and aVNC
Variables
Region (brain lobes, tVNC, aVNC) across Hours After Larval Hatching for G2-arrested qNSCs | Region (brain lobes, tVNC, aVNC) across Hours After Larval Hatching for G0-arrested qNSCs
Readout
% NSCs reactivated (Wor+)

Alternative explanations

Alternative Explanation Partially Addressed by the Author S
The regional reactivation sequence could arise from anterior-posterior differences in nutrient/insulin access rather than an actively propagated inter-regional signal.
Mechanism: upstream gradient vs propagated relay
Reviewer experiment: Deliver exogenous insulin uniformly across the CNS (e.g., ex vivo culture with saturating insulin) and test whether the anterior-to-posterior reactivation sequence persists.
Alternative Explanation Partially Addressed by the Author M
The apparent anterior-to-posterior reactivation sequence could partly reflect regional differences in Worniu detection kinetics rather than true differences in reactivation onset.
Mechanism: readout/marker-kinetics confound
Reviewer experiment: Measure the regional reactivation time-course using an independent early readout such as EdU pulse-labeling or cell-size quantification and compare with the Wor+ sequence.
C5 Full CLEAR Needs Reviewer's attention
Tested claim
qNSCs in the abdominal VNC remain quiescent more than fifteen hours longer than qNSCs in the brain lobes, despite the secretion of insulin-like peptides across the entire CNS emanating from the glial-niche.
Authors claim
Intriguingly, qNSCs in the abdominal VNC remain quiescent more than fifteen hours longer than qNSCs in the brain lobes, despite the secretion of insulin-like peptides across the entire CNS emanating from the glial-niche (Chell and Brand, 2010).
Graph used: Figure 1D-1, Figure 1D-2
Why this needs reviewer's attention
Figure 1D supports the brain-lobe versus abdominal-VNC reactivation timing comparison but does not show insulin-like peptide secretion across the CNS/glial niche.
Details
Baseline
0 h ALH
Variables
region (brain lobes, tVNC, aVNC) x time (0-24 h ALH at 4-h intervals) for G2-arrested qNSCs | region (brain lobes, tVNC, aVNC) x time (0-24 h ALH at 4-h intervals) for G0-arrested qNSCs
Readout
% NSCs reactivated (Wor+)

Alternative explanations

Alternative Explanation Partially Addressed by the Author S
The regional reactivation sequence could arise from anterior-posterior differences in nutrient/insulin access rather than an actively propagated inter-regional signal.
Mechanism: upstream gradient vs propagated relay
Reviewer experiment: Deliver exogenous insulin uniformly across the CNS (e.g., ex vivo culture with saturating insulin) and test whether the anterior-to-posterior reactivation sequence persists.
Alternative Explanation Partially Addressed by the Author M
The apparent anterior-to-posterior reactivation sequence could partly reflect regional differences in Worniu detection kinetics rather than true differences in reactivation onset.
Mechanism: readout/marker-kinetics confound
Reviewer experiment: Measure the regional reactivation time-course using an independent early readout such as EdU pulse-labeling or cell-size quantification and compare with the Wor+ sequence.

Figure 2B (1 claim)

Variables: PTEN  |  Readout: MIXED
C6 Full CLEAR Sufficient
Tested claim
PTEN misexpression in the brain lobe qNSCs severely impaired reactivation of ventral nerve cord qNSCs.
Authors claim
Upon misexpression of an inhibitor of insulin signaling (PTEN) in the brain lobe qNSCs, we found that reactivation of ventral nerve cord qNSCs was severely impaired (Fig. 2B).
Graph used: Figure 2B-1, Figure 2B-2
Details
Baseline
Control
Variables
Control vs PTEN; VNC NSCs; fed conditions; 24hrs ALH; pH3+ NSCs | Control vs PTEN; VNC NSCs; fed conditions; 24hrs ALH; Wor+ NSCs
Readout
%pH3+ NSCs at 24hrs ALH | %Wor+ NSCs at 24hrs ALH

Alternative explanations

Alternative Explanation Not Addressed by the Author S
PTEN misexpression may impair posterior reactivation because it prevents the targeted anterior NSCs from entering the upstream active/reactivated state needed to emit some downstream cue, rather than because insulin-pathway state itself is the propagated coordinating signal.
Mechanism: source-cell state vs transmitted-signal identity
Reviewer experiment: Score reactivation of the targeted brain-lobe NSCs in the PTEN condition. Also test whether a non-insulin manipulation that blocks anterior NSC reactivation (e.g., cell-cycle arrest) produces the same VNC phenotype.

Figure 2C (2 claims)

Variables: AKT  |  Readout: %pH3+ NSCs at 24hrs ALH
C7 Full CLEAR Sufficient
Tested claim
Expression of constitutively active AKT in the brain lobe qNSCs under “starvation” conditions was sufficient to induce reactivation of the ventral nerve cord qNSCs.
Authors claim
Remarkably, this was sufficient to induce reactivation of the ventral nerve cord qNSCs (Fig. 2C).
Graph used: Figure 2C-1
Details
Baseline
Control
Variables
Control vs AKT; VNC NSCs; amino acid starvation context from legend/methods; 24hrs ALH
Readout
%pH3+ NSCs at 24hrs ALH

Alternative explanations

Alternative Explanation Not Addressed by the Author S
Constitutively active AKT may rescue posterior reactivation because it forces anterior NSCs into an upstream active/reactivated state that then emits another cue, rather than because AKT/insulin-pathway activation itself is the propagated signal.
Mechanism: source-cell state vs transmitted-signal identity
Reviewer experiment: Drive anterior NSC reactivation via an orthogonal pathway (e.g., forced cell-cycle entry, CycE overexpression) under starvation and test whether posterior reactivation is also rescued.
C8 Full CLEAR Needs Reviewer's attention
Tested claim
To coordinate reactivation between the brain lobes and the VNC, qNSCs appear to be able to propagate a signal along the anterior–posterior axis of the CNS.
Authors claim
Therefore, to coordinate reactivation between the brain lobes and the VNC, qNSCs appear to be able to propagate a signal along the anterior–posterior axis of the CNS.
Graph used: Figure 2C-1
Why this needs reviewer's attention
The panel shows induced VNC reactivation after brain-lobe Akt activation but does not structurally resolve anterior-versus-posterior propagation along the CNS axis.
Details
Baseline
Control
Variables
Control vs AKT misexpression in brain lobes; VNC NSCs scored under amino acid starvation at 24 hrs ALH
Readout
%pH3+ NSCs at 24hrs ALH

Alternative explanations

Alternative Explanation Not Addressed by the Author S
Constitutively active AKT may rescue posterior reactivation because it forces anterior NSCs into an upstream active/reactivated state that then emits another cue, rather than because AKT/insulin-pathway activation itself is the propagated signal.
Mechanism: source-cell state vs transmitted-signal identity
Reviewer experiment: Drive anterior NSC reactivation via an orthogonal pathway (e.g., forced cell-cycle entry, CycE overexpression) under starvation and test whether posterior reactivation is also rescued.

Figure 3A-B (1 claim)

C9 CLEAR Needs Reviewer's attention
Relevant panels: Figure 3A, Figure 3B
Tested claim
Misexpression of Kir2.1 in the brain lobes led to impaired reactivation of VNC qNSCs.
Authors claim
We found that misexpression of Kir2.1 in the brain lobes (Fig. 3A) led to impaired reactivation of VNC qNSCs (Fig. 3B).
Graph used: Figure 3A-1
Why this needs reviewer's attention
The cited panel shows Kir2.1 misexpression in brain lobes but does not measure VNC qNSC reactivation.
Details
Baseline
No explicit control/reference image is shown; only Kir2.1-GFP brain lobe expression at 24 h ALH is displayed.
Variables
Brain lobe NSCs with GFP-labeled Kir2.1 expression; microscopy localization in brain lobes
Readout
Microscopy fluorescence image showing NSC (red) and GFP (green) in brain lobes

Figure 4A (1 claim)

Variables: quiescent NSCs, neurons, proliferating NSCs  |  Readout: image panel (microscopy)
C14 CLEAR Sufficient
Tested claim
At the stage at which qNSCs enter quiescence, the cells are similar in size to neurons, and their projections resemble axons.
Authors claim
At the stage at which qNSCs enter quiescence, the cells are similar in size to neurons, and their projections resemble axons (Fig. 4A).
Graph used: Figure 4A-1
Details
Baseline
Representative image contexts include qNSCs with neurons at 0 h ALH and quiescent versus proliferative NSCs at 24 h ALH; scale bar 10 μm provides size reference.
Variables
quiescent qNSCs, neurons, proliferating NSCs; Dpn-labeled NSCs, Elav-labeled neurons, membrane GFP; image contexts at 0 h ALH and 24 h ALH
Readout
multichannel fluorescence microscopy image with Dpn-marked NSCs (red), Elav-marked neurons (blue), membrane GFP (green), arrow annotations, and 10 μm scale bar

Figure 4B (2 claims)

Variables: quiescence, reactivation  |  Readout: UMAP clustering
C19 CLEAR Needs Reviewer's attention
Tested claim
GO term analysis of qNSC gene expression revealed an enrichment for neuronal genes involved in neurotransmitter release, synaptic assembly and synaptic activity.
Authors claim
GO term analysis of qNSC gene expression revealed an enrichment for neuronal genes involved in neurotransmitter release, synaptic assembly and synaptic activity (Fig. 4B).
Graph used: Figure 4B-1
Why this needs reviewer's attention
The cited panel shows only an integrated UMAP cluster map and does not display GO-term enrichment results for qNSC gene expression.
Details
Baseline
not applicable for this panel type; integrated embedding with no explicit baseline comparison
Variables
cluster annotations in an integrated scRNA-seq UMAP, including NSCs, neurons, progenitors/GMCs, glia, and trachea
Readout
UMAP1 vs UMAP2 embedding coordinates
C20 Could not be evaluated Could not be evaluated
Tested claim
Reactivated NSCs expressed genes for transcription and translation.
Authors claim
In contrast, reactivated NSCs expressed genes for transcription and translation (Fig. 4B).
Why this was not evaluated
The current CLEAR Lite run could not evaluate this claim with the available panel structure.
Graph used: Figure 4B-1
Why this needs reviewer's attention
The cited panel shows only an integrated UMAP cluster map, not a gene-expression or GO-term readout for reactivated NSCs.
Details
Baseline
not applicable for this panel type; integrated embedding with no explicit baseline group shown
Variables
cluster identity annotations including NSCs, neurons, progenitors/GMCs, glia, and trachea; sample-state context is only described in legend/methods, not graph-encoded
Readout
UMAP1 vs UMAP2 embedding coordinates

Figure 4C-E (4 claims)

C15 CLEAR Sufficient
Relevant panels: Figure 4C, Figure 4D, Figure 4E
Tested claim
Both quiescent and reactivated NSCs expressed neural stem cell genes such as deadpan, worniu, and klumpfuss.
Authors claim
As expected, both quiescent and reactivated NSCs expressed neural stem cell genes such as deadpan, worniu, and klumpfuss.
Graph used: Figure 4C-1, Figure 4D-1, Figure 4E-1
Details
Baseline
not applicable for enrichment summary | Observational reference groups shown alongside NSC groups: Neurons quiescence and Neurons reactivation
Variables
Quiescent neural stem cells GO-term set | Four x-axis cohorts: Neurons quiescence, Neurons reactivation, Quiescent NSCs, Reactivated NSCs; gene-specific subgraphs including dpn, wor, and klu | Four x-axis cohorts: Neurons quiescence, Neurons reactivation, Quiescent NSCs, Reactivated NSCs
Readout
Fold enrichment | Expression Level | Neuron score
C16 CLEAR Sufficient
Relevant panels: Figure 4C, Figure 4D, Figure 4E
Tested claim
qNSCs also express genes characteristic of neurons.
Authors claim
Surprisingly, we found that qNSCs also express genes characteristic of neurons (Figs. 4C–E and EV2A,B).
Graph used: Figure 4C-1, Figure 4D-22, Figure 4E-1
Details
Baseline
Quiescent neural stem cells | Neurons quiescence
Variables
Quiescent neural stem cells with enriched GO terms including action potential, postsynapse assembly, presynapse assembly, regulation of neurotransmitter secretion, calcium ion-regulated exocytosis of neurotransmitter, clathrin-dependent synaptic vesicle endocytosis | Neurons quiescence, Neurons reactivation, Quiescent NSCs, Reactivated NSCs; gene-specific expression distributions including neuronal markers such as nSyb, Gad1, VGlut, Rdl, Syt1, cpx | Neurons quiescence, Neurons reactivation, Quiescent NSCs, Reactivated NSCs
Readout
Fold enrichment | Expression Level | Neuron score
C17 CLEAR Sufficient
Relevant panels: Figure 4C, Figure 4D, Figure 4E
Tested claim
Neuronal gene expression was only observed in qNSCs.
Authors claim
Neuronal gene expression was only observed in qNSCs; upon reactivation, NSCs reverted to stem cell gene expression, and neuronal genes were silenced.
Graph used: Figure 4C-1, Figure 4C-2, Figure 4D-22, Figure 4E-1
Details
Baseline
not applicable for enrichment summary | Reactivated NSCs and Quiescent NSCs are both displayed as compared NSC states within the same violin plot | Both Quiescent NSCs and Reactivated NSCs are shown in the same grouped dotplot
Variables
Quiescent neural stem cells with enriched GO terms including neurotransmitter release, synapse assembly, action potential-related categories | Reactivated neural stem cells with enriched GO terms dominated by transcription/translation/cell-cycle categories | Four cohorts on x-axis: Neurons quiescence, Neurons reactivation, Quiescent NSCs, Reactivated NSCs; gene-specific neuronal marker nSyb | X-axis groups: Neurons quiescence, Neurons reactivation, Quiescent NSCs, Reactivated NSCs
Readout
Fold enrichment | Expression Level | Neuron score
C18 CLEAR Sufficient
Relevant panels: Figure 4C, Figure 4D, Figure 4E
Tested claim
Upon reactivation, NSCs reverted to stem cell gene expression, and neuronal genes were silenced.
Authors claim
Neuronal gene expression was only observed in qNSCs; upon reactivation, NSCs reverted to stem cell gene expression, and neuronal genes were silenced.
Graph used: Figure 4C-1, Figure 4C-2, Figure 4D-1, Figure 4E-1
Details
Baseline
not required for enrichment_summary panel type | Quiescent NSCs as the direct pre-reactivation NSC reference within the x-axis groups
Variables
Quiescent neural stem cells; enriched GO term categories including neurotransmitter release, synaptic vesicle endocytosis, action potential, postsynapse assembly, presynapse assembly, regulation of neurotransmitter secretion | Reactivated neural stem cells; enriched GO term categories including cytoplasmic translation, DNA replication, G1/S phase transition, transcription initiation, translational elongation, translational initiation | Four cohorts on x-axis: Neurons quiescence, Neurons reactivation, Quiescent NSCs, Reactivated NSCs; gene-specific expression distributions including stem cell genes (dpn, wor, klu) and neuronal genes (e.g. nSyb, Gad1, VGlut, Rdl, nAChRalpha6, mAChR-A, Syt1) | Four cohorts on x-axis: Neurons quiescence, Neurons reactivation, Quiescent NSCs, Reactivated NSCs
Readout
Fold enrichment | Expression Level | Neuron score

Figure 4C (1 claim)

Variables: Reactivated neural stem cells (red)  |  Readout: Fold enrichment
C21 CLEAR Needs Reviewer's attention
Tested claim
Quiescent, but not reactivated, neural stem cells expressed neuronal genes involved in electrochemical processes, including GABAergic (Gad1, Rdl), cholinergic (nAChRalpha6, mAChR-A) and glutamatergic neurotransmission (VGlut).
Authors claim
Quiescent, but not reactivated, neural stem cells expressed neuronal genes involved in electrochemical processes, including GABAergic (Gad1, Rdl), cholinergic (nAChRalpha6, mAChR-A) and glutamatergic neurotransmission (VGlut; Fig. 4C).
Graph used: Figure 4C-1, Figure 4C-2
Why this needs reviewer's attention
Figure 4C shows GO-term enrichment categories for quiescent and reactivated NSCs, not the claimed gene-level expression of Gad1, Rdl, nAChRalpha6, mAChR-A, and VGlut.
Details
Baseline
No explicit baseline; quiescent NSC GO-term enrichment summary only | No explicit baseline; reactivated NSC GO-term enrichment summary only
Variables
Quiescent neural stem cells; GO term/pathway categories | Reactivated neural stem cells; GO term/pathway categories
Readout
Fold enrichment of GO term / pathway category

Figure 4E (2 claims)

Variables: tissue sites: Neurons quiescence, Neurons reactivation, Quiescent NSCs, Reactivated NSCs  |  Readout: Neuron score
C22 CLEAR Sufficient
Tested claim
qNSCs have a high neuron score, whereas reactivated NSCs do not exhibit neuronal gene expression.
Authors claim
We generated a “neuron score” based on the top neuronal genes expressed in neurons during late embryogenesis and found that qNSCs have a high neuron score, whereas reactivated NSCs do not exhibit neuronal gene expression (Fig. 4E).
Graph used: Figure 4E-1
Details
Baseline
Observational reference groups on the x-axis include Quiescent NSCs and Reactivated NSCs, with neurons during quiescence/reactivation also shown.
Variables
Cell state/group: Neurons quiescence, Neurons reactivation, Quiescent NSCs, Reactivated NSCs
Readout
Neuron score
C23 CLEAR Needs Reviewer's attention
Tested claim
qNSCs transiently become neuronal while maintaining expression of stem cell genes.
Authors claim
Therefore, qNSCs transiently become neuronal while maintaining expression of stem cell genes.
Graph used: Figure 4E-1
Why this needs reviewer's attention
Figure 4E shows neuronal-score comparison across cell states but does not show stem cell gene expression in the same claim-tested panel bundle.
Details
Baseline
Reactivated NSCs is an explicit comparison group; neurons in quiescence/reactivation are additional observational references.
Variables
Population groups: Neurons quiescence, Neurons reactivation, Quiescent NSCs, Reactivated NSCs
Readout
Neuron score

Figure 5 (1 claim)

C30 Too UnCLEAR References a figure but not a resolvable panel
Authors claim
Thus, the synaptic proteins Hig and Hasp are both required for timely NSC reactivation, suggesting that a synaptic mechanism may be involved.

Figure 5A (1 claim)

Variables: tissue sites: Neurons Quiescence, Neurons Reactivation, Quiescent NSCs, Reactivated NSCs  |  Readout: Expression Level
C24 Unclear baseline
Tested claim
Among the neuronal genes upregulated in qNSCs, several cholinergic receptors (nAChRalpha6, nAChRalpha5, nAChRalpha1, mAChR-A) were found.
Authors claim
Among the neuronal genes upregulated in qNSCs, we found several cholinergic receptors: nAChRalpha6, nAChRalpha5, nAChRalpha1, mAChR-A (Fig. 5A).

Figure 5A-C (1 claim)

C25 Unclear baseline Sufficient
Relevant panels: Figure 5A, Figure 5B, Figure 5C
Tested claim
hikaru genki (hig) is expressed in qNSCs and downregulated upon reactivation.
Authors claim
In addition, we found that the cholinergic synapse-specific genes (Nakayama et al, 2014, 2016) hikaru genki (hig) is expressed in qNSCs and downregulated upon reactivation (Fig. 5A–C).
Graph used: Figure 5A-1, Figure 5B-2, Figure 5C-2
Details
Baseline
Quiescent NSCs is available as the comparison reference against Reactivated NSCs within the hig row | Quiescent NSCs 0 hrs ALH
Variables
cell/state categories include Quiescent NSCs and Reactivated NSCs; gene rows include hig | paired qNSC and reactivated NSC images with hig mRNA readout and dpn mRNA NSC marker | paired qNSC and reactivated NSC images with Hig protein readout
Readout
Expression Level | mRNA in situ (fluorescence microscopy) | immunofluorescence microscopy

Figure 5D (1 claim)

Variables: 0h ALH  |  Readout: immunofluorescence microscopy
C26 CLEAR Sufficient
Tested claim
In qNSCs, Hig is found along the projection and in the neuropil.
Authors claim
In qNSCs, Hig is found along the projection and in the neuropil (Fig. 5D).
Graph used: Figure 5D-1
Details
Baseline
single quiescent NSC image at 0 h ALH
Variables
qNSC state at 0 h ALH; Hig channel (green); CycA channel (red); annotated projection; annotated neuropil boundary
Readout
confocal immunofluorescence signal localization

Figure 5E (1 claim)

Variables: higRNAi  |  Readout: % pH3+ NSCs at 24hrs ALH
C27 CLEAR Sufficient
Tested claim
Knocking down hig in NSCs impairs reactivation.
Authors claim
We found that knocking down hig in NSCs impairs reactivation (Fig. 5E).
Graph used: Figure 5E-1
Details
Baseline
Control (mCherryRNAi)
Variables
NSC-targeted hig knockdown versus control in brain-lobe NSCs at 24 hrs ALH
Readout
% pH3+ NSCs at 24hrs ALH

Figure 5F (1 claim)

Variables: higRNAi  |  Readout: % pH3+ NSCs at 24hrs ALH
C28 Full CLEAR Sufficient
Tested claim
Downregulation of hig in neurons significantly impairs qNSC reactivation.
Authors claim
Downregulation of hig in neurons also significantly impairs qNSC reactivation (Figs. 5F and EV3).
Graph used: Figure 5F-1
Details
Baseline
Control / mCherryRNAi control
Variables
neuronal knockdown group: Control vs higRNAi; pan-neuronal context from headline/legend; measured population is NSCs in brain lobes at 24 hrs ALH
Readout
% pH3+ NSCs at 24hrs ALH

Alternative explanations

Alternative Explanation Partially Addressed by the Author M
Pan-neuronal hig knockdown may impair NSC reactivation by broadly disrupting neuronal support or network output, not specifically by disrupting direct neuron-qNSC synaptic signaling.
Mechanism: cell-type breadth / indirect neuronal support
Reviewer experiment: Restrict hig knockdown to the candidate contacting neurons (e.g., using a more specific driver) and compare the phenotype with pan-neuronal knockdown.

Figure 6A-B (1 claim)

C31 CLEAR Sufficient
Relevant panels: Figure 6A, Figure 6B
Tested claim
The termini of qNSC projections can be seen close to axonal tracts in the CNS.
Authors claim
When fully extended, the termini of qNSC projections can be seen close to axonal tracts in the CNS (Fig. 6A,B).
Graph used: Figure 6A-1, Figure 6B-2
Details
Baseline
not applicable for a representative anatomical colocalization/proximity image | not applicable for a representative anatomical proximity image
Variables
qNSC projections labeled by wor-GAL4 > mCD8-GFP; descending neuronal tracts/neuropil labeled by Fas2; VNC CNS context | VNC NSCs labeled in red with grh-GAL4 > mCD8-mCherry in green; neuropil/neuronal fibers marked in the image context; VNC CNS context
Readout
fluorescence microscopy image showing Fas2 (red) and GFP (green) | fluorescence microscopy image showing NSC (red) and mCherry (green)

Figure 6D (3 claims)

Variables: Kir2.1  |  Readout: MIXED
C32 Full CLEAR Needs Reviewer's attention
Tested claim
Blocking neuronal firing drastically delayed the onset of reactivation as marked by Worniu.
Authors claim
Blocking neuronal firing drastically delayed the onset of reactivation as marked by Worniu (Fig. 6D) and completely abolished the proliferation of qNSCs in the ventral nerve cord, which was assessed using pH3 staining (Fig. 6D).
Graph used: Figure 6D-2
Why this needs reviewer's attention
The panel compares control versus neuronal silencing at a single 24 h timepoint but does not resolve onset timing of reactivation.
Details
Baseline
Control
Variables
group = Control vs Kir2.1; single measured timepoint at 24 h ALH
Readout
% wor+ NSCs at 24hrs ALH

Alternative explanations

Alternative Explanation Partially Addressed by the Author S
The Figure 6D phenotype may reflect a general requirement for descending neuronal activity or trophic support in posterior reactivation, rather than a dedicated relay of anterior NSC state.
Mechanism: broad neuronal support vs specific anterior-state relay
Reviewer experiment: Manipulate descending neuronal activity while independently controlling anterior NSC state (e.g., silence descending neurons while forcing anterior NSC reactivation via AKT) and test whether posterior reactivation follows neuronal output or anterior NSC state.
C33 Full CLEAR Sufficient
Tested claim
Blocking neuronal firing completely abolished the proliferation of qNSCs in the ventral nerve cord, which was assessed using pH3 staining.
Authors claim
Blocking neuronal firing drastically delayed the onset of reactivation as marked by Worniu (Fig. 6D) and completely abolished the proliferation of qNSCs in the ventral nerve cord, which was assessed using pH3 staining (Fig. 6D).
Graph used: Figure 6D-1
Details
Baseline
Control
Variables
group = Control versus Kir2.1; population = NSCs scored in the tVNC at 24 h ALH
Readout
% pH3+ NSCs at 24hrs ALH

Alternative explanations

Alternative Explanation Partially Addressed by the Author S
The Figure 6D phenotype may reflect a general requirement for descending neuronal activity or trophic support in posterior reactivation, rather than a dedicated relay of anterior NSC state.
Mechanism: broad neuronal support vs specific anterior-state relay
Reviewer experiment: Manipulate descending neuronal activity while independently controlling anterior NSC state (e.g., silence descending neurons while forcing anterior NSC reactivation via AKT) and test whether posterior reactivation follows neuronal output or anterior NSC state.
C34 Full CLEAR Sufficient
Tested claim
Neuronal activity is required for the non-autonomous reactivation of posterior qNSCs.
Authors claim
This demonstrates that neuronal activity is required for the non-autonomous reactivation of posterior qNSCs.
Graph used: Figure 6D-1, Figure 6D-2
Details
Baseline
Control
Variables
group = Control vs Kir2.1; population = tVNC NSCs at 24 h ALH
Readout
% pH3+ NSCs at 24hrs ALH | % wor+ NSCs at 24hrs ALH

Alternative explanations

Alternative Explanation Partially Addressed by the Author S
The Figure 6D phenotype may reflect a general requirement for descending neuronal activity or trophic support in posterior reactivation, rather than a dedicated relay of anterior NSC state.
Mechanism: broad neuronal support vs specific anterior-state relay
Reviewer experiment: Manipulate descending neuronal activity while independently controlling anterior NSC state (e.g., silence descending neurons while forcing anterior NSC reactivation via AKT) and test whether posterior reactivation follows neuronal output or anterior NSC state.

Claims without specific panel link (1 claims)

C29 Too UnCLEAR General claim without a specific panel link
Authors claim
Moreover, we found that neuronal knockdown of the hig anchoring protein, hasp, which enables the segregation of Hig at cholinergic synapses (Nakayama et al, 2016) also impairs qNSC reactivation (Fig. EV4).

Panel Sheet QC Findings (1 panel QC finding)

These checks distinguish manuscript omissions from extraction failures. A panel can exist in the figure even when the legend or Results text does not explicitly mention it.

Failure ModeAffected PanelsSeverityNote
Legend mentions panel not found in figure Figure 4F, Figure 4G Warning These panels are listed in the figure legend but appear to be missing from the actual figure. The author may have referenced panels that weren't included in the final figure (e.g., Lim 5G, 5H, 5I). This is NOT an extraction pipeline issue.

Legend

CLEAR verdict: Sufficient means the mapped experiment structurally supports the tested claim. Needs reviewer's attention means the mapped structure does not cleanly support the tested claim — the motivation explains why. Could not be evaluated means the experimental structure remained too unclear for formal evaluation.
Alternative Explanations: Full CLEAR generates alternative explanations for evaluated claims and classifies each as ruled out, partially addressed, or not addressed by the authors. Each includes a suggested reviewer experiment.
Severity: Alternative explanations are graded as Fatal (F), Serious (S), Moderate (M), or Minor based on their structural impact on the claim.
Too UnCLEAR: Summary or figure-level claims that do not map to a specific panel are listed but not evaluated. These are typically "taken together" statements that synthesize across multiple experiments.