PMID- 37382162 OWN - NLM STAT- MEDLINE DCOM- 20231115 LR - 20240218 IS - 1531-4995 (Electronic) IS - 0023-852X (Print) IS - 0023-852X (Linking) VI - 133 IP - 12 DP - 2023 Dec TI - Localizing Hormone Receptor Expression to Cellular Compartments in Idiopathic Subglottic Stenosis. PG - 3506-3511 LID - 10.1002/lary.30856 [doi] AB - OBJECTIVES: Idiopathic subglottic stenosis (iSGS) is an unexplained progressive fibrosis of the upper airway. iSGS almost exclusively affects women; as a result, female hormones (estrogen and progesterone) have been proposed to participate in the pathogenesis of iSGS. Our aim was to localize cell-specific gene expression of estrogen receptors (ESR1 and ESR2) and progesterone receptor (PGR) using an established iSGS single-cell RNA sequencing (scRNAseq) cell atlas. STUDY DESIGN: Ex vivo molecular study of airway scar and healthy mucosa from iSGS patients. METHODS: An established scRNAseq atlas consisting of 25,974 individually sequenced cells from subglottic scar (n = 7) or matched unaffected mucosa (n = 3) in iSGS patients was interrogated for RNA expression of ESR1, ESR2, and PGR. Results were quantified and compared across cell subsets, then visualized using Uniform Manifold Approximation and Projection (UMAP). Confirmatory protein assessment of endocrine receptors in fibroblasts from iSGS patients (n = 5) was performed via flow cytometry. RESULTS: The proximal airway mucosa in iSGS patients demonstrates differential expression of endocrine receptors (ESR1, ESR2, PGR). Within airway scar, endocrine receptors are primarily expressed by fibroblasts, immune cells, and endothelial cells. Fibroblasts show strong ESR1 and PGR expression, while immune cells possess RNA for both ESR1 and ESR2. Endothelial cells predominantly express ESR2. Epithelial cells in unaffected mucosa express all three receptors, which are all reduced in airway scar. CONCLUSIONS: scRNAseq data localized endocrine receptor expression to specific cell subsets. These results provide the foundation for future work interrogating how hormone-dependent mechanisms promote, sustain, or participate in iSGS disease pathogenesis. LEVEL OF EVIDENCE: NA; Basic science Laryngoscope, 133:3506-3511, 2023. CI - (c) 2023 The American Laryngological, Rhinological and Otological Society, Inc. FAU - Talatala, Edward Ryan R AU - Talatala ERR AD - Department of Otolaryngology-Head & Neck Surgery, Vanderbilt University Medical Center, Nashville, Tennessee, USA. FAU - Clark, Evan AU - Clark E AUID- ORCID: 0000-0002-4951-2627 AD - Department of Otolaryngology-Head & Neck Surgery, Vanderbilt University Medical Center, Nashville, Tennessee, USA. FAU - Ye, Wenda AU - Ye W AD - Department of Otolaryngology-Head & Neck Surgery, Vanderbilt University Medical Center, Nashville, Tennessee, USA. FAU - Davis, Ruth J AU - Davis RJ AD - Department of Otolaryngology-Head & Neck Surgery, Vanderbilt University Medical Center, Nashville, Tennessee, USA. FAU - Hillel, Alexander T AU - Hillel AT AUID- ORCID: 0000-0001-8471-5449 AD - Department of Otolaryngology-Head & Neck Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA. FAU - Collins, Samuel L AU - Collins SL AD - Department of Otolaryngology-Head & Neck Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA. FAU - Ramirez-Solano, Marisol AU - Ramirez-Solano M AD - Department of Biostatistics, Vanderbilt University Medical Center, Nashville, Tennessee, USA. FAU - Sheng, Quanhu AU - Sheng Q AD - Department of Biostatistics, Vanderbilt University Medical Center, Nashville, Tennessee, USA. FAU - Gelbard, Alexander AU - Gelbard A AUID- ORCID: 0000-0003-0078-1305 AD - Department of Otolaryngology-Head & Neck Surgery, Vanderbilt University Medical Center, Nashville, Tennessee, USA. LA - eng GR - R01 HL146401/HL/NHLBI NIH HHS/United States GR - 1409-22214/PCORI/Patient-Centered Outcomes Research Institute/United States GR - R01HL146401/HL/NHLBI NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural DEP - 20230629 PL - United States TA - Laryngoscope JT - The Laryngoscope JID - 8607378 RN - 0 (Estrogens) RN - 63231-63-0 (RNA) SB - IM MH - Humans MH - Female MH - *Cicatrix/pathology MH - Endothelial Cells/pathology MH - Constriction, Pathologic/complications MH - *Laryngostenosis/pathology MH - Gene Expression MH - Estrogens MH - RNA PMC - PMC10755061 MID - NIHMS1914743 OTO - NOTNLM OT - estrogen OT - iSGS OT - idiopathic subglottic stenosis OT - progesterone OT - single-cell atlas COIS- Disclosures: The authors report no conflicts of interest. EDAT- 2023/06/29 13:42 MHDA- 2023/11/15 06:43 PMCR- 2024/12/01 CRDT- 2023/06/29 06:37 PHST- 2023/05/13 00:00 [revised] PHST- 2023/01/20 00:00 [received] PHST- 2023/06/15 00:00 [accepted] PHST- 2024/12/01 00:00 [pmc-release] PHST- 2023/11/15 06:43 [medline] PHST- 2023/06/29 13:42 [pubmed] PHST- 2023/06/29 06:37 [entrez] AID - 10.1002/lary.30856 [doi] PST - ppublish SO - Laryngoscope. 2023 Dec;133(12):3506-3511. doi: 10.1002/lary.30856. Epub 2023 Jun 29.