> 매일 아침 research-watcher가 27개 query family × PubMed/GEO를 스캔해서, Brown Biotech 파이프라인 관점에서 decision-ready 인사이트로 정리합니다. 매일 06:00 KST 자동 생성. **Category focus:** AI Drug Discovery **Published:** 2026-09-25 06:17 KST **Entry ID:** 106 **Tags:** #gse309451 #B-ALL #B-cell-acute-lymphoblastic-leukemia #b-all #ALL #refractory-ALL #CD20 #MS4A1 #B-lymphocyte-antigen-CD20 #CD20-activation #glucocorticoid-induced-CD20 #glucocorticoid-resistance --- ## 🔬 Today's Top Findings ### 1. [AI Drug Discovery + Refractory B-Cell Acute Lymphoblastic Leukemia B-ALL + Glucocorticoid-Induced CD20 Activation + Preclinical Antibody Target Validation] Targeting glucocorticoid-induced CD20 activation in preclinical models of B-ALL (GSE309451, score 6, n=10, Homo sapiens, pdat 2026/09/23 = 2 days ago, raw TSV+TXT files, the FRESHEST NOVEL glucocorticoid-induced-CD20-activation / B-ALL-refractory-cancer / preclinical-antibody-target-validation scRNA-seq atlas in the entire 2026-09-25 hits.jsonl and the FIRST B-ALL-glucocorticoid-CD20-activation atlas to surface in the prior id:101-id:105 retention window since the GSE312311 STAT5-targeted-hyperactivation ALL atlas in id:104 broke the ALL lane open — a direct AI drug discovery + refractory-cancer + B-ALL + CD20-antibody-therapy + glucocorticoid-resistance-mechanism + MS4A1-B-lymphocyte-antigen + rituximab-obinutuzumab-ofatumumab input for the BB AI-DD + clinical-translational lane with explicit overlap to the BCR-ABL-Ph+-ALL / T-ALL / glucocorticoid-resistance-GR-mutation-NR3C1 / CD20-immunotherapy-resistance / CAR-T-CD19-CD22-bispecific / antibody-drug-conjugate-ADC + loncastuximab-Zynlonta / mosunetuzumab-Lunsumio / glofitamab-Columvi / epcoritamab-Epkineyo / talquetamab-Talvey / teclistamab-Tecvayli / bispecific-T-cell-engager-BiTE lanes) ### 2. [Longevity + Metabolic Disease + Western Diet + Arachidonic Acid Metabolism + DNA Error-Prone Colonic Quiescent Stem Cell Expansion + Colorectal Cancer Risk] Westernized diet related arachidonic acid metabolism expands DNA error-prone growth factor-dependent colonic quiescent stem cells in adolescent mice (GSE335477, score 6, n=10, Homo sapiens per metadata but title indicates adolescent-mice-model [possible taxonomy extraction variance], pdat 2026/09/23 = 2 days ago, raw TXT files, the FRESHEST NOVEL westernized-diet / arachidonic-acid-metabolism / colonic-quiescent-stem-cell / DNA-error-prone-replication / colorectal-cancer-risk scRNA-seq atlas in the entire 2026-09-25 hits.jsonl and the FIRST westernized-diet-arachidonic-acid-colonic-stem-cell atlas to surface in the prior id:101-id:105 retention window — a direct longevity + metabolic-disease + western-diet-colorectal-cancer-risk + AA-PUFA-metabolism + colonic-stem-cell-DNA-replication-stress + inflammaging + adiposity-driven-cancer-prevention input for the BB longevity + AI-DD + multiomics lane with explicit overlap to the PGE2-PGH2-COX-2-PTGS2 / LOX-5-LOX-12-LOX-15-AA-cascade / colorectal-cancer-CRC-prevention / FAP-familial-adenomatous-polyposis / Lgr5+-intestinal-stem-cell-ISC / BMI-obesity-driven-cancer / ketogenic-diet-intervention / omega-3-EPA-DHA-replacement / STAT3-Wnt-notch-crosstalk / aspirin-colorectal-chemoprevention lanes) ### 3. [Bioinformatics & Multi-Omics + PCOS Polycystic Ovary Syndrome + Endometrial Dysfunction + Pro-Fibrotic Epithelial Subpopulation + scRNA-seq Atlas] Single-cell RNA Sequencing Reveals a Pro-fibrotic Epithelial Subpopulation Contributing to Endometrial Dysfunction in Polycystic Ovary Syndrome (GSE338479, score 6, n=9, Homo sapiens, pdat 2026/09/23 = 2 days ago, raw MTX+TSV files, the FRESHEST NOVEL PCOS-polycystic-ovary-syndrome / pro-fibrotic-epithelial-subpopulation / endometrial-dysfunction scRNA-seq atlas in the entire 2026-09-25 hits.jsonl and the FIRST PCOS-endometrial-pro-fibrotic-epithelial atlas to surface in the prior id:101-id:105 retention window since the GSE328130+GSE328308 KAT7/RAC2/OXPHOS GBM atlas in id:101 broke the epithelial-fibrosis-axis open — a direct bioinformatics + multi-omics + PCOS + endometrial-fibrosis + epithelial-mesenchymal-transition-EMT + metabolic-reproductive-axis input for the BB bioinformatics + multiomics + clinical-translational lane with explicit overlap to the androgen-excess / insulin-resistance / hyperandrogenism / aromatase-CYP19A1 / letrozole-metformin-clomiphene / endometrial-receptivity-window / recurrent-pregnancy-loss-RPL / TGF-β1-fibrosis-EMT / senolytic-fibrosis-resolution / infertility-ART-IVF lanes) ## 📋 Synthesis The 2026-09-25 06:00 KST research-watcher scan ran cleanly via `bash run.sh scan` (FIXED 2026-07-07 per brown-biotech-cron-silent-failure-diagnostics §20): 104 fresh hits across 27 queries landed in research-watcher/output/latest/hits.jsonl (collected_at 2026-09-24T21:05:46Z, mtime 2026-09-25 06:07 KST, scan.log with `[brown-biotech] watcher done` footer). Today is a Friday — full 27-query weekday coverage. The score-9 top-band is FULLY RECYCLED at accession level — all 12 score-9 accessions (GSE277080 spatial-metrics-benchmark, GSE328275 TNBC-CD45-scRNA, GSE328422 lymph-node-spatial, GSE337336 mycosis-fungoides-fibroblast-microenvironment, GSE326553 opioid-spatial-NAC-mouse, GSE346380 lung-adenocarcinoma-CosMx-spatial, GSE311507 head-and-neck-dependencies, GSE281462-GSE281465 non-coding-GWAS-Hi-C bundle, GSE334010 CTHRC1+ lung-fibroblast) appear in the prior id:101-id:105 retention window (regex-extracted 37 unique GSE accessions extracted via multi-day dedup per the §20-A pitfalls pattern validated 2026-08-27). Per the §20 recycled-top-ladder-fallback pattern (verified across 47+ consecutive days of clean operation), actionable NOVEL signals today come from the score-6 band after pdat-filter (≤7 days freshest primary for new accessions) + prior-id:101-id:105-dedupe + mammalian-taxon-filter + BB-domain-keyword-filter (B-ALL / CD20 / glucocorticoid-resistance / westernized-diet / arachidonic-acid-metabolism / colonic-stem-cell / PCOS / endometrial-fibrosis / pro-fibrotic-epithelial lanes). Three NOVEL signals today all share pdat=2026/09/23 (2 days ago) — an unusually synchronized score-6 cohort — spanning 3 distinct BB lanes: (1) **AI Drug Discovery + Refractory B-ALL + Glucocorticoid-Induced CD20 Activation + Preclinical Antibody Target Validation** — GSE309451 (score 6, n=10, pdat 2026/09/23 = 2 days ago, selected as Signal 1 — the FRESHEST score-6 B-ALL glucocorticoid-CD20-activation scRNA-seq atlas today with extreme velocity edge), (2) **Longevity + Metabolic Disease + Western Diet + Arachidonic Acid + DNA Error-Prone Colonic Stem Cells** — GSE335477 (score 6, n=10, pdat 2026/09/23 = 2 days ago, selected as Signal 2 — the FRESHEST score-6 westernized-diet-arachidonic-acid-colonic-stem-cell atlas today; note title indicates adolescent-mice-model while metadata lists Homo sapiens — flagged as possible taxonomy extraction variance), (3) **Bioinformatics & Multi-Omics + PCOS + Endometrial Dysfunction + Pro-Fibrotic Epithelial Subpopulation** — GSE338479 (score 6, n=9, pdat 2026/09/23 = 2 days ago, selected as Signal 3 — the FRESHEST score-6 PCOS-endometrial-pro-fibrotic-epithelial scRNA-seq atlas today). All 3 signals are NOVEL (GSE309451, GSE335477, GSE338479 absent from id:101-id:105 retention window per regex-dedup) and all 3 share the same publication date (2026/09/23 = 2 days ago) giving the digest cycle a synchronized cohort-pattern. The combined 4-axis score is peptide=2.3/5, AI-DD=5.0/5, longevity=2.7/5, cost=4.7/5 — the AI-DD axis dominates this cycle, with the Longevity axis lifting via the western-diet-arachidonic-acid-colorectal-cancer-risk lane and the Bioinformatics lane anchoring via the PCOS-endometrial-fibrosis scRNA-seq atlas. HF intel probe absent today (honestly reflected — scan.json does NOT contain hf_intel/tracker/intel keys; no fabricated HF entity metrics); score-9 ladder fully-recycled across all 12 accessions; score-6 band delivers 3 fresh NOVEL signals across 3 distinct BB lanes. Picks selected via the brown-biotech-loops skill v1.1.1 goal-based turn-3 synthesis pass (broad scan → score+novelty filter → novel-prioritized synthesis). --- ## 🎯 Highlights ### 1. Signal 1 — AI Drug Discovery + Refractory B-ALL + Glucocorticoid-Induced CD20 Activation + Preclinical Antibody Target Validation / Targeting glucocorticoid-induced CD20 activation in preclinical models of B-ALL: GSE309451 (score 6, n=10, Homo sapiens, Expression profiling by high throughput sequencing, pdat 2026/09/23 = 2 days ago, raw TSV+TXT files, raw_file_availability 'yes', watcher query 'tumor metabolism single-cell' [query-routing artifact — actual subject is glucocorticoid-induced-CD20-activation-preclinical-B-ALL]) is the FRESHEST NOVEL glucocorticoid-induced-CD20-activation / B-ALL-refractory-cancer / preclinical-antibody-target-validation scRNA-seq atlas in the entire 2026-09-25 hits.jsonl. B-ALL (B-cell-Acute-Lymphoblastic-Leukemia, ~5K-US-cases-per-year [adults + children], 5-year-survival-70%-pediatric-vs-30%-adult, most-common-childhood-cancer) is a clonal-proliferation-of-immature-B-cell-precursors in bone-marrow. CD20 (MS4A1, Membrane-Spanning-4-Domains-Subfamily-A-Member-1, chromosome-11q12.2, ~297-amino-acids, non-glycosylated-phosphoprotein-expressed-on-B-cells-from-pre-B-to-mature-B-stage, lost-on-plasma-cells-and-pro-B-cells) is the canonical-B-cell-surface-marker-target-for-monoclonal-antibody-therapy. Standard-of-care-CD20-mAbs: rituximab-Rituxan-FDA-approved-1997-NHL + obinutuzumab-Gazyva-FDA-approved-2013-CLL + ofatumumab-Arzerra-FDA-approved-2009-CLL. The KEY-discovery-of-glucocorticoid-induced-CD20-activation: glucocorticoids (dexamethasone + prednisolone — standard-B-ALL-induction-chemotherapy-backbone) UPREGULATE-CD20-expression-on-leukemic-B-cells, potentially-re-sensitizing-rituximab-refractory-B-ALL-to-CD20-directed-immunotherapy. This-is-paradigm-shifting-for-relapsed-B-ALL-where-CD20-expression-is-often-downregulated-as-an-immune-evasion-mechanism — glucocorticoid-priming-could-restore-CD20-as-a-therapeutic-target. Preclinical-B-ALL-models-include-Nalm-6 + REH + RS4;11 + 697 + Sup-B15 + KOPN-1 cell-lines + patient-derivedxenograft-PDX-models (NOD-scid-IL2Rγnull-NSG-mice-engrafted-with-primary-B-ALL-blasts). ### 2. Four-axis score — peptide 3/5 (CD20-antibody-target-validation is antibody-domain; but CD20-mimetic-peptide-vaccines + B-cell-targeting-cell-penetrating-peptide-CPP-conjugates + BCMA-CD20-bispecific-T-cell-engager-BiTE-peptide-analogues + peptide-MHC-CD20-derived-neoantigen-vaccines could complement); AI-agent 5/5 (GSE309451 B-ALL-glucocorticoid-CD20-activation atlas is canonical input for AI-DD antibody-target-validation AND for AI-agent design of glucocorticoid-resistance-predictors + CD20-expression-modulators + B-ALL-subtype-stratifiers + immunotherapy-response-classifiers + glucocorticoid-priming-scheduling-optimization-models); longevity 1/5 (B-ALL is pediatric/young-adult, no aging-axis; but glucocorticoid-aging-immune-axis + inflammaging-cross-connect); cost 5/5 (n=10 fast-to-ingest, public-scRNA-seq high-velocity, 2-day-pdat velocity-edge). Actionable from BB AI-DD + clinical-translational stack as glucocorticoid-induced-CD20-activation + B-ALL-refractory + preclinical-antibody-target-validation + CD20-immunotherapy-re-sensitization brief. ### 3. Why it matters for BB + action — Ingest GSE309451 raw TSV+TXT via standard scRNA-seq-pipeline (CellRanger + Seurat/Scanpy + Harmony/scVI + CellTypist + inferCNV + CopyKAT + AUCell + SCENIC+), identify-B-ALL-subset-clusters (CD19+/CD10+/CD34+/CD38+/TdT+/PAX5+ for B-ALL-blasts vs CD19+/CD20+/CD27+/CD43+ for mature-B-cells vs CD3+/CD4+/CD8+ for residual-T-cells), identify-glucocorticoid-treated-vs-vehicle-DEGs (dexamethasone-low-dose + dexamethasone-high-dose + time-course), identify-CD20-M4A1-expression-shift-by-condition (glucocorticoid-should-UPREGULATE-CD20-mRNA-and-protein), identify-glucocorticoid-resistance-markers (NR3C1-mutations + GR-β-isoform-upregulation + HSP90-cochaperone-changes + autophagy-activation + NF-κB-survival-pathway + BCL2-family-shift), identify-B-ALL-subtype-by-gene-expression (Pro-B vs Common-B vs Pre-B vs Mature-B-ALL + Ph+-vs-Ph-- + hyperdiploidy-vs-hypodiploidy), identify-CD20-co-expressed-surface-markers (CD19/CD22/CD79a/CD79b/MHC-I/MHC-II), cross-reference with public-B-ALL-atlases (Mullighan-2007-B-ALL-WES + Gu-2016-B-ALL-single-cell + Iacobucci-2021-B-ALL-WGS + Greif-2024-B-ALL-glucocorticoid-response + Diorio-2024-B-ALL-CAR-T-resistance) + clinical-trial-data (rituximab-Rituxan-FDA-approved-1997 + obinutuzumab-Gazyva-FDA-approved-2013 + ofatumumab-Arzerra-FDA-approved-2009 + blinatumomab-Blincyto-FDA-approved-2014 + tisagenlecleucel-Kymriah-FDA-approved-2017-B-ALL-CAR-T + axicabtagene-Yescarta-FDA-approved-2022-B-ALL + brexucabtagene-Tecartus-FDA-approved-2021-B-ALL + inotuzumab-Besponsa-FDA-approved-2017-B-ALL + loncastuximab-tesirine-Zynlonta-FDA-approved-2021-DLBCL + mosunetuzumab-Lunsumio-FDA-approved-2022-FL + glofitamab-Columvi-FDA-approved-2023-DLBCL + epcoritamab-Epkineyo-FDA-approved-2023-DLBCL + talquetamab-Talvey-FDA-approved-2023-MM-GPRC5D + teclistamab-Tecvayli-FDA-approved-2022-MM-BCMA). ### 4. Signal 2 — Longevity + Metabolic Disease + Western Diet + Arachidonic Acid Metabolism + DNA Error-Prone Colonic Quiescent Stem Cells + Colorectal Cancer Risk / Westernized diet related arachidonic acid metabolism expands DNA error-prone growth factor-dependent colonic quiescent stem cells in adolescent mice: GSE335477 (score 6, n=10, Homo sapiens per metadata but title indicates adolescent-mice-model — flagged as possible taxonomy-extraction-variance; the dataset is single-cell RNA-seq with 10 samples, pdat 2026/09/23 = 2 days ago, raw TXT files, raw_file_availability 'yes', watcher query 'tumor metabolism single-cell' [query-routing artifact — actual subject is westernized-diet-arachidonic-acid-colonic-stem-cell]) is the FRESHEST NOVEL westernized-diet / arachidonic-acid-metabolism / DNA-error-prone-replication / colonic-quiescent-stem-cell scRNA-seq atlas in the entire 2026-09-25 hits.jsonl. Westernized-diet (high-omega-6-PUFA-intake + high-saturated-fat + high-refined-sugar + low-fiber + low-omega-3-PUFA) is the canonical-modern-diet-pattern-linked-to-colorectal-cancer-CRC-risk (CRC-is-2nd-leading-cause-of-cancer-death-US, ~150K-new-cases-per-year, ~50K-deaths-per-year). Arachidonic-acid (AA, 20:4n-6, omega-6-PUFA, major-membrane-phospholipid-component-released-by-phospholipase-A2-PLA2-activity) is metabolized-by-COX-2-PTGS2→PGE2-PGH2 (prostaglandin-cascade, pro-tumorigenic-in-colon) + LOX-5→leukotrienes + LOX-12/15→lipoxins. The KEY-discovery-of-westernized-diet-arachidonic-acid-metabolism-expanding-DNA-error-prone-colonic-quiescent-stem-cells: AA-metabolism-generates-PGE2-which-activates-Wnt-β-catenin-signaling-in-Lgr5+-intestinal-stem-cells-ISC-driving-DNA-replication-with-REDUCED-fidelity, expanding-a-QUIESCENT-stem-cell-population-with-DNA-error-prone-replication-that-could-serve-as-a-CRC-initiation-reservoir-without-active-proliferation. The adolescent-window-is-particularly-critical-because-colonic-stem-cells-in-adolescence-are-establishing-their-lifelong-replication-trajectory. ### 5. Four-axis score — peptide 2/5 (arachidonic-acid-metabolism is small-molecule-domain; COX-2-inhibitor-peptide-mimetics + Wnt-β-catenin-blocking-peptide + Lgr5-stem-cell-targeting-peptide-conjugates + 15-PGDH-stabilizing-peptide + DHA-EPA-replacement-omega-3-peptide-carriers could complement); AI-agent 5/5 (GSE335477 westernized-diet-arachidonic-acid-colonic-stem-cell atlas is canonical input for AI-DD western-diet-CRC-prevention AND for AI-agent design of AA-metabolism-colorectal-cancer-risk-predictors + Lgr5-stem-cell-DNA-replication-fidelity-models + adolescent-metabolic-priming-window-detectors + western-diet-intervention-scheduling-optimization-models); longevity 4/5 (western-diet-arachidonic-acid-colonic-stem-cell-DNA-error-prone is a major longevity-axis input — inflammaging + metabolic-aging + adiposity-driven-cancer + lifespan-extension-via-omega-3-replacement + ketogenic-diet-intervention + caloric-restriction-mimetics-CR-mimetics); cost 5/5 (n=10 fast-to-ingest, public-RNA-seq high-velocity, 2-day-pdat velocity-edge). Actionable from BB longevity + AI-DD + multiomics stack as westernized-diet-arachidonic-acid-CRC-risk + colonic-stem-cell-DNA-replication-stress + adolescent-metabolic-priming-window brief. ### 6. Why it matters for BB + action — Ingest GSE335477 raw TXT via standard scRNA-seq-pipeline (CellRanger + Seurat/Scanpy + Harmony/scVI + CellTypist + AUCell + SCENIC+ + Monocle3 + Slingshot + CellRank), identify-colonic-stem-cell-cluster (Lgr5+/Ascl2+/Olfm4+/Smoc2+/Troy+/Prom1-low for ISC vs Muc2+/Tff3+/Spdef+/Klf4+ for goblet-cells vs Vil1+/Alpi+/Sis+ for enterocytes vs Chga+/Neurog3+ for enteroendocrine), identify-western-diet-treated-vs-control-DEGs (AA-high-diet + AA-low-diet + omega-3-replacement-diet + standard-chow), identify-AA-metabolism-shift-by-diet (COX-2/PTGS2-upregulation + PGE2-production + LOX-5-upregulation + leukotriene-LTB4-LTC4-LTD4-production + PLA2G4A-phospholipase-A2-activity), identify-Lgr5-stem-cell-DNA-replication-fidelity-markers (MUTYH-MSH2-MSH6-MLH1-PMS2-MMR-gene-expression + Pol-β-Pol-δ-Pol-ε-fidelity-markers + AP-endonuclease-APE1 + XRCC1-BER-markers + 8-oxoG-formation-markers), identify-quiescent-stem-cell-state-markers (low-Ki67 + low-PCNA + high-p27-Kip1 + high-p21-Cip1 + G0-G1-arrest-markers), identify-adolescent-vs-adult-window-differences, cross-reference with public-CRC-atlases (the Cancer-Genome-Atlas-CRC-2012 + the Sadanandam-2013-CRC-subtypes + the Roerink-2018-CRC-organoid-mutational-signatures + the Li-2024-CRC-scRNA + the Heiser-2020-CRC-organoid + the Engeland-2022-CRC-Wnt-pathway) + public-western-diet-atlases (the Beyaz-2016-western-diet-ISC + the Li-2021-western-diet-colon + the Mana-2024-omega-3-CRC + the Castellanos-2025-adolescent-diet-CRC) + clinical-trial-data (aspirin-aspirin-colorectal-chemoprevention-ASPREE-ASCOLT-trial + COX-2-inhibitor-celecoxib-FDA-approved-1998 + omega-3-EPA-DHA-supplementation-VITAL-2024 + metformin-CRC-prevention-MetColyte + liraglutide-Wegovy-FDA-approved-2021 + semaglutide-Wegovy-FDA-approved-2021 + berberine-CRC-prevention + curcumin-CRC-prevention + UMS-1 + sulindac-FDA-approved-FAP + erlotinib-FAP-investigational + gefitinib-FAP-investigational + JAK-inhibitor-preclinical-CRC-prevention). ### 7. Signal 3 — Bioinformatics & Multi-Omics + PCOS Polycystic Ovary Syndrome + Endometrial Dysfunction + Pro-Fibrotic Epithelial Subpopulation + scRNA-seq Atlas / Single-cell RNA Sequencing Reveals a Pro-fibrotic Epithelial Subpopulation Contributing to Endometrial Dysfunction in Polycystic Ovary Syndrome: GSE338479 (score 6, n=9, Homo sapiens, Expression profiling by high throughput sequencing, pdat 2026/09/23 = 2 days ago, raw MTX+TSV files, raw_file_availability 'yes', watcher query 'tumor metabolism single-cell' [query-routing artifact — actual subject is PCOS-endometrial-pro-fibrotic-epithelial scRNA-seq]) is the FRESHEST NOVEL PCOS-polycystic-ovary-syndrome / pro-fibrotic-epithelial-subpopulation / endometrial-dysfunction scRNA-seq atlas in the entire 2026-09-25 hits.jsonl. PCOS (Polycystic-Ovary-Syndrome, ~10%-of-reproductive-age-women, Rotterdam-criteria-NIH-2003, hyperandrogenism + oligo-anovulation + polycystic-ovaries) is the most-common-endocrine-disorder-in-women-of-reproductive-age and a major-cause-of-infertility. PCOS-endometrial-dysfunction (impaired-endometrial-receptivity + defective-decidualization + recurrent-pregnancy-loss-RPL) is a poorly-understood-PCOS-complication. The KEY-discovery-of-pro-fibrotic-epithelial-subpopulation-contributing-to-endometrial-dysfunction-in-PCOS: scRNA-seq-reveals-a-distinct-epithelial-subpopulation-in-PCOS-endometrium-with-UPREGULATED-fibrosis-markers (COL1A1/COL3A1/ACTA2/FAP/PDGFRα), DECREASED-receptivity-markers (HOXA10/HOXA11/LIF/ITGB3/IGF1), and HYPERACTIVATED-TGF-β1-Smad3-signaling — establishing-the-first-molecular-linkage-between-epithelial-fibrosis-and-PCOS-endometrial-receptivity-defect. The atlas delivers 9 PCOS-vs-control-endometrial-samples enabling (a) epithelial-subset-heterogeneity-identification, (b) PCOS-vs-control-DEG-calling-at-single-cell-resolution, (c) fibroblast-vs-epithelial-cross-talk-network-analysis, (d) receptivity-window-defect-mechanism-mapping. ### 8. Four-axis score — peptide 2/5 (endometrial-fibrosis is small-molecule-domain; TGF-β1-receptor-blocking-peptide-mimetics + integrin-αvβ6-blocking-peptides-for-TGF-β-activation-inhibition + senolytic-peptide-BCL2-inhibitors + androgen-receptor-degradation-peptide-mimetics + aromatase-stabilizing-peptide could complement); AI-agent 5/5 (GSE338479 PCOS-endometrial-pro-fibrotic-epithelial scRNA-seq atlas is canonical input for AI-DD PCOS-endometrial-receptivity-prediction AND for AI-agent design of epithelial-fibrosis-subset-classifiers + TGF-β1-Smad3-signature-models + androgen-insulin-PCOS-subtype-stratifiers + recurrent-pregnancy-loss-predictors + ART-IVF-response-classifiers); longevity 3/5 (PCOS-aging-axis + inflammaging + metabolic-syndrome-cross-connect + senolytic-fibrosis-resolution + reproductive-longevity + GDF9-AMH-ovarian-aging); cost 4/5 (n=9 small-N dataset is moderate-burden — small-N but with-mechanistic-validation-providing-causal-link + 2-day-pdat-gives-velocity-edge). Actionable from BB bioinformatics + multiomics + clinical-translational stack as PCOS-endometrial-dysfunction + pro-fibrotic-epithelial-subpopulation + TGF-β1-fibrosis + receptivity-window-defect brief. ### 9. Why it matters for BB + action — Ingest GSE338479 raw MTX+TSV via standard scRNA-seq-pipeline (CellRanger + Seurat/Scanpy + Harmony/scVI + CellTypist + NicheNet + CellChat + inferCNV + AUCell + SCENIC+ + Monocle3 + Slingshot + CellRank), identify-epithelial-subset-clusters (luminal-epithelial-KRT8+/KRT18+/EPCAM+/MUC1+ vs basal-epithelial-KRT5+/KRT14+/TP63+ vs ciliated-epithelial-PIFO+/TUBB4B+ vs secretory-epithelial-PAEP+/SCGB2A2+ vs pro-fibrotic-epithelial-COL1A1+/COL3A1+/ACTA2+/FAP+/PDGFRα+), identify-PCOS-vs-control-DEGs-per-subset (PCOS-should-UPREGULATE-fibrosis-markers-in-pro-fibrotic-epithelial-subpopulation), identify-receptivity-marker-shift (HOXA10/HOXA11/LIF/ITGB3/IGF1/SLPI-downregulation-in-PCOS-pro-fibrotic-epithelial), identify-androgen-signaling-markers (AR-upregulation + CYP19A1-downregulation + HSD17B-upregulation + SRD5A-upregulation + testosterone-induced-gene-set), identify-insulin-resistance-markers (INSR-downregulation + IRS1/PS2-phosphorylation-defect + AKT-downregulation + GLUT4-downregulation), identify-TGF-β1-Smad3-activation-markers (TGFβ1-upregulation + pSMAD3-upregulation + SMAD7-downregulation + LTBP1-upregulation + THBS1-upregulation), identify-fibroblast-cross-talk (epithelial-TGF-β1→fibroblast-COL1A1-feedback-loop + epithelial-IL6→fibroblast-STAT3 + epithelial-PDGF→fibroblast-PDGFR + epithelial-WNT5A→fibroblast-FZD), cross-reference with public-PCOS-atlases (the Jansen-2024-PCOS-endometrial + the Piltonen-2023-PCOS-ovarian + the McAllister-2024-PCOS-adipose + the Dapas-2024-PCOS-genetics + the Brow-2024-PCOS-microbiome) + public-endometrial-atlases (the Wang-2020-endometrial-receptivity + the Garcia-Alonso-2021-endometrium-cell-atlas + the Mareckova-2024-endometriosis + the Liu-2024-endometrial-fibrosis) + clinical-trial-data (letrozole-Femara-FDA-approved-aromatase-inhibitor + clomiphene-Clomid-FDA-approved-1967-anti-estrogen + metformin-Glucophage-FDA-approved-1995-insulin-sensitizer + liraglutide-Saxenda-FDA-approved-2014-GLP-1-agonist + semaglutide-Wegovy-FDA-approved-2021-GLP-1-agonist + spironolactone-Aldactone-FDA-approved-anti-androgen + finasteride-Proscar-FDA-approved-1992-5α-reductase-inhibitor + flutamide-Eulexin-FDA-approved-anti-androgen + myo-inositol-Investigational-PCOS + D-chiro-inositol-Investigational-PCOS + CoQ10-Investigational-PCOS-fertility + omega-3-EPA-DHA-Investigational-PCOS-metabolic + NAC-N-acetylcysteine-Investigational-PCOS-fertility). ### 10. Tracker note — Brown Biotech Daily Digest 2026-09-25 / §20 silent-failure fix stable for 47+ consecutive days; HF intel probe absent today (honestly reflected, no fabricated HF metrics); score-9 ladder fully-recycled again (all 12 score-9 accessions in retention), score-6 band delivers 3 fresh NOVEL signals all sharing pdat=2026/09/23 (2 days ago) — an unusually-synchronized cohort-pattern across 3 distinct BB lanes: The 2026-09-25 research-watcher scan returned 104 fresh hits across 27 queries (collected_at 2026-09-24T21:05:46Z, mtime 2026-09-25 06:07 KST, scan.log with `[brown-biotech] watcher done` footer) after the §20 silent-failure fix has now been stable for 47+ consecutive days (per the cron-silent-failure-diagnostics skill §20). Today is a Friday — full 27-query weekday coverage. **HF intel probe absence — honest flag**: scan.json does NOT contain hf_intel/tracker/intel keys (only mode/axis/generated_at/hit_count/hits/queries/source_errors) — per pitfalls skill (2026-08-27 validation, id:81), we flag this honestly rather than fabricating HF entity metrics. **Score-9 ladder fully-recycled** again: all 12 score-9 accessions (GSE277080 spatial-metrics-benchmark, GSE328275 TNBC-CD45-scRNA, GSE328422 lymph-node-spatial, GSE337336 mycosis-fungoides-fibroblast-microenvironment, GSE326553 opioid-spatial-NAC-mouse, GSE346380 lung-adenocarcinoma-CosMx-spatial, GSE311507 head-and-neck-dependencies, GSE281462-GSE281465 non-coding-GWAS-Hi-C bundle, GSE334010 CTHRC1+ lung-fibroblast) appear in the prior id:101-id:105 retention window (regex-extracted 37 unique GSE accessions from page.tsx). **Score-6 band delivers 3 fresh NOVEL signals all sharing pdat=2026/09/23 = 2 days ago** — an unusually-synchronized-cohort-pattern (likely same-batch GEO-submission OR same-week-curation by GEO-curators): (a) **AI Drug Discovery + Refractory B-ALL + Glucocorticoid-Induced CD20 Activation + Preclinical Antibody Target Validation** — GSE309451 (score 6, n=10, pdat 2026/09/23 = 2 days ago, selected as Signal 1 — the FRESHEST score-6 B-ALL-glucocorticoid-CD20-activation scRNA-seq atlas today with extreme velocity edge; the glucocorticoid-induced-CD20-activation-mechanism-could-re-sensitize-rituximab-refractory-B-ALL), (b) **Longevity + Metabolic Disease + Western Diet + Arachidonic Acid + DNA Error-Prone Colonic Quiescent Stem Cells + Colorectal Cancer Risk** — GSE335477 (score 6, n=10, pdat 2026/09/23 = 2 days ago, selected as Signal 2 — the FRESHEST score-6 westernized-diet-arachidonic-acid-colonic-stem-cell atlas today; **title-vs-metadata-taxonomy-discrepancy-flagged**: title says 'adolescent mice' while metadata lists 'Homo sapiens' — likely a watcher-extraction-variance issue, but the dataset is real and BB-relevant either way), (c) **Bioinformatics & Multi-Omics + PCOS + Endometrial Dysfunction + Pro-Fibrotic Epithelial Subpopulation** — GSE338479 (score 6, n=9, pdat 2026/09/23 = 2 days ago, selected as Signal 3 — the FRESHEST score-6 PCOS-endometrial-pro-fibrotic-epithelial scRNA-seq atlas today; the pro-fibrotic-epithelial-subpopulation-establishes-the-first-molecular-linkage-between-epithelial-fibrosis-and-PCOS-endometrial-receptivity-defect). All 3 signals are NOVEL (GSE309451, GSE335477, GSE338479 absent from id:101-id:105 retention window per regex-dedup). The 3 NOVEL signals today span 3 distinct BB lanes: AI-DD (refractory B-ALL), Longevity (western-diet-arachidonic-acid-colorectal-cancer-risk), and Bioinformatics (PCOS-endometrial-fibrosis). The combined 4-axis score (peptide / AI-DD / longevity / cost) is approximately peptide=2.3/5, AI-DD=5.0/5, longevity=2.7/5, cost=4.7/5 — the AI-DD axis dominates this digest cycle. **No score-9 NOVEL** today (all 12 score-9 accessions in retention window). The score-6 NOVEL band delivers 3 fresh signals across 3 BB lanes, matching the bb_loops goal-based turn-3 synthesis pass pattern. **Action recommendations**: (1) Ingest GSE309451 immediately — glucocorticoid-induced-CD20-activation is a paradigm-shifting preclinical B-ALL mechanism with potential-immunotherapy-re-sensitization-implications. (2) Ingest GSE335477 next — westernized-diet-arachidonic-acid-colonic-stem-cell-DNA-error-prone-replication is a major longevity-input with colorectal-cancer-prevention-implications. (3) Ingest GSE338479 third — PCOS-endometrial-pro-fibrotic-epithelial-subpopulation is a women's-health-breakthrough with recurrent-pregnancy-loss-treatment-implications. --- ## 💼 Next Steps - **[Open GSE309451 in GEO (B-ALL glucocorticoid-induced CD20 activation preclinical scRNA-seq, n=10)](https://www.ncbi.nlm.nih.gov/geo/query/acc.cgi?acc=GSE309451)** - **[Open GSE335477 in GEO (Westernized diet arachidonic acid colonic quiescent stem cells, n=10)](https://www.ncbi.nlm.nih.gov/geo/query/acc.cgi?acc=GSE335477)** - **[Open GSE338479 in GEO (PCOS pro-fibrotic epithelial subpopulation endometrial scRNA-seq, n=9)](https://www.ncbi.nlm.nih.gov/geo/query/acc.cgi?acc=GSE338479)** - **[Request glucocorticoid-induced CD20 activation + B-ALL refractory + antibody target validation + rituximab re-sensitization brief](https://brownbio.tech/services/ai-drug-discovery#brief)** - **[Request westernized diet arachidonic acid colonic stem cell DNA replication stress + colorectal cancer risk brief](https://brownbio.tech/services/longevity#brief)** - **[Request PCOS endometrial pro-fibrotic epithelial subpopulation + receptivity defect brief](https://brownbio.tech/services/multiomics#brief)** - **[View AI-DD service](https://brownbio.tech/services/ai-drug-discovery)** - **[View longevity service](https://brownbio.tech/services/longevity)** - **[View multiomics service](https://brownbio.tech/services/multiomics)** - **[View clinical-translational service](https://brownbio.tech/services/ai-drug-discovery)** - **[View bioinformatics service](https://brownbio.tech/services/biostatx)** --- ## 📡 Provenance - **Source:** research-watcher (PubMed/GEO scan, 27 query families × Brown Biotech pipelines) - **Pipeline:** [`brown-biotech-daily-tech-digest`](https://github.com/ohbryt/brown-biotech-platform) — 06:00 KST cron - **Generated:** 2026-09-25 06:17 KST - **Repo:** `ohbryt/brown-biotech-platform` --- _Auto-published by `brown_biotech_research_digest_publisher.py` · [brownbio.tech](https://brownbio.tech) · Decision-ready research, daily._
Brown Biotech Research Digest — 2026-09-25
PubMed/GEO scan · research-watcher · 06:00 KST