PMID- 26566264 OWN - NLM STAT- MEDLINE DCOM- 20160801 LR - 20190111 IS - 1097-4652 (Electronic) IS - 0021-9541 (Print) IS - 0021-9541 (Linking) VI - 231 IP - 7 DP - 2016 Jul TI - Sex Steroids Influence Brain-Derived Neurotropic Factor Secretion From Human Airway Smooth Muscle Cells. PG - 1586-92 LID - 10.1002/jcp.25254 [doi] AB - Brain derived neurotropic factor (BDNF) is emerging as an important player in airway inflammation, remodeling, and hyperreactivity. Separately, there is increasing evidence that sex hormones contribute to pathophysiology in the lung. BDNF and sex steroid signaling are thought to be intricately linked in the brain. There is currently little information on BDNF and sex steroid interactions in the airway but is relevant to understanding growth factor signaling in the context of asthma in men versus women. In this study, we assessed the effect of sex steroids on BDNF expression and secretion in human airway smooth muscle (ASM). Human ASM was treated with estrogen (E2 ) or testosterone (T, 10 nM each) and intracellular BDNF and secreted BDNF measured. E2 and T significantly reduced secretion of BDNF; effects prevented by estrogen and androgen receptor inhibitor, ICI 182,780 (1 muM), and flutamide (10 muM), respectively. Interestingly, no significant changes were observed in intracellular BDNF mRNA or protein expression. High affinity BDNF receptor, TrkB, was not altered by E2 or T. E2 (but not T) significantly increased intracellular cyclic AMP levels. Notably, Epac1 and Epac2 expression were significantly reduced by E2 and T. Furthermore, SNARE complex protein SNAP25 was decreased. Overall, these novel data suggest that physiologically relevant concentrations of E2 or T inhibit BDNF secretion in human ASM, suggesting a potential interaction of sex steroids with BDNF in the airway that is different from brain. The relevance of sex steroid-BDNF interactions may lie in their overall contribution to airway diseases such as asthma. CI - (c) 2015 Wiley Periodicals, Inc. FAU - Wang, Sheng-Yu AU - Wang SY AD - Department of Respiratory Medicine, First Affiliated Hospital of Xi'an Medical University, Xi'an, Shaanxi, PR China. AD - Department of Anesthesiology, Mayo Clinic, Rochester, Minnesota. FAU - Freeman, Michelle R AU - Freeman MR AD - Department of Anesthesiology, Mayo Clinic, Rochester, Minnesota. FAU - Sathish, Venkatachalem AU - Sathish V AD - Department of Anesthesiology, Mayo Clinic, Rochester, Minnesota. AD - Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, Minnesota. FAU - Thompson, Michael A AU - Thompson MA AD - Department of Anesthesiology, Mayo Clinic, Rochester, Minnesota. FAU - Pabelick, Christina M AU - Pabelick CM AD - Department of Anesthesiology, Mayo Clinic, Rochester, Minnesota. AD - Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, Minnesota. FAU - Prakash, Y S AU - Prakash YS AD - Department of Anesthesiology, Mayo Clinic, Rochester, Minnesota. AD - Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, Minnesota. LA - eng GR - R01 HL056470/HL/NHLBI NIH HHS/United States GR - R01 HL088029/HL/NHLBI NIH HHS/United States GR - R01 HL123494/HL/NHLBI NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural DEP - 20151126 PL - United States TA - J Cell Physiol JT - Journal of cellular physiology JID - 0050222 RN - 0 (Brain-Derived Neurotrophic Factor) RN - 0 (Estrogens) RN - 0 (Gonadal Steroid Hormones) RN - 0 (Membrane Glycoproteins) RN - 0 (Receptors, Androgen) RN - 22X328QOC4 (Fulvestrant) RN - 3XMK78S47O (Testosterone) RN - 4TI98Z838E (Estradiol) RN - 76W6J0943E (Flutamide) RN - EC 2.7.10.1 (Protein-Tyrosine Kinases) RN - EC 2.7.10.1 (Receptor, trkB) RN - EC 2.7.10.1 (tropomyosin-related kinase-B, human) SB - IM MH - Airway Remodeling/*genetics MH - Asthma/*genetics/metabolism/pathology MH - Brain-Derived Neurotrophic Factor/*biosynthesis/genetics/metabolism MH - Estradiol/administration & dosage/analogs & derivatives MH - Estrogens/administration & dosage MH - Female MH - Flutamide/administration & dosage MH - Fulvestrant MH - Gene Expression Regulation/drug effects MH - Gonadal Steroid Hormones/*administration & dosage MH - Humans MH - Inflammation/*genetics/pathology MH - Male MH - Membrane Glycoproteins/biosynthesis MH - Myocytes, Smooth Muscle/metabolism/pathology MH - Protein-Tyrosine Kinases/biosynthesis MH - Receptor, trkB MH - Receptors, Androgen/drug effects MH - Testosterone/administration & dosage PMC - PMC4890164 MID - NIHMS789512 EDAT- 2015/11/14 06:00 MHDA- 2016/08/02 06:00 PMCR- 2017/07/01 CRDT- 2015/11/14 06:00 PHST- 2015/11/10 00:00 [received] PHST- 2015/11/11 00:00 [accepted] PHST- 2015/11/14 06:00 [entrez] PHST- 2015/11/14 06:00 [pubmed] PHST- 2016/08/02 06:00 [medline] PHST- 2017/07/01 00:00 [pmc-release] AID - 10.1002/jcp.25254 [doi] PST - ppublish SO - J Cell Physiol. 2016 Jul;231(7):1586-92. doi: 10.1002/jcp.25254. Epub 2015 Nov 26.