PMID- 37307020 OWN - NLM STAT- MEDLINE DCOM- 20230921 LR - 20230929 IS - 1557-7732 (Electronic) IS - 1080-7683 (Linking) VI - 39 IP - 7 DP - 2023 Sep TI - Activation of Sonic Hedgehog Signaling Pathway Regulates Human Trabecular Meshwork Cell Function. PG - 430-438 LID - 10.1089/jop.2023.0022 [doi] AB - Purpose: To investigate the effects of Sonic hedgehog (Shh) signaling on primary human trabecular meshwork (HTM) cells. Methods: Primary HTM cells were isolated from healthy donors and cultured. Recombinant Shh (rShh) protein and cyclopamine were used to activate and inhibit the Shh signaling pathway, respectively. A cell viability assay was performed to assess the effects of rShh on the activity of primary HTM cells. Functional assessment of cell adhesion and phagocytosis was also performed. The proportion of apoptotic cells was examined using flow cytometry. Fibronectin (FN) and transforming growth factor beta2 (TGF-beta2) protein were detected to assess the influence of rShh on the metabolism of the extracellular matrix (ECM). Real-time polymerase chain reaction (RT-PCR) and western blot analyses were used to examine mRNA and protein expression of Shh signaling pathway-associated factors GLI Family Zinc Finger 1 (GLI1) and Suppressor of Fused (SUFU). Results: rShh significantly enhanced primary HTM cell viability at a concentration of 0.5 mug/mL. rShh increased the adhesion and phagocytic abilities of primary HTM cells, and decreased cell apoptosis. FN and TGF-beta2 protein expression increased in primary HTM cells treated with rShh. rShh upregulated the transcriptional activity and protein levels of GLI1, and downregulated those of SUFU. Correspondingly, the rShh-induced GLI1 upexpression was partially blocked by pretreatment with the Shh pathway inhibitor cyclopamine at a concentration of 10 muM. Conclusions: Activation of Shh signaling can regulate the function of primary HTM cells through GLI1. Regulation of Shh signaling may be a potential target for attenuating cell damage in glaucoma. FAU - Wang, Xiaochen AU - Wang X AUID- ORCID: 0000-0003-2348-5955 AD - Department of Ophthalmology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China. AD - Chongqing Key Lab of Ophthalmology, Chongqing Eye Institute, Chongqing Branch of National Clinical Research Center for Ocular Diseases, Chongqing, China. FAU - Tan, Sisi AU - Tan S AUID- ORCID: 0000-0001-8387-4149 AD - Department of Ophthalmology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China. AD - Chongqing Key Lab of Ophthalmology, Chongqing Eye Institute, Chongqing Branch of National Clinical Research Center for Ocular Diseases, Chongqing, China. FAU - Yang, Shuang AU - Yang S AUID- ORCID: 0000-0002-7943-8130 AD - Department of Ophthalmology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China. AD - Chongqing Key Lab of Ophthalmology, Chongqing Eye Institute, Chongqing Branch of National Clinical Research Center for Ocular Diseases, Chongqing, China. FAU - Liu, Xianmao AU - Liu X AUID- ORCID: 0000-0002-6510-9109 AD - Department of Ophthalmology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China. AD - Chongqing Key Lab of Ophthalmology, Chongqing Eye Institute, Chongqing Branch of National Clinical Research Center for Ocular Diseases, Chongqing, China. FAU - Lei, Junqin AU - Lei J AUID- ORCID: 0000-0001-5938-5812 AD - Department of Ophthalmology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China. AD - Chongqing Key Lab of Ophthalmology, Chongqing Eye Institute, Chongqing Branch of National Clinical Research Center for Ocular Diseases, Chongqing, China. FAU - Li, Hong AU - Li H AUID- ORCID: 0000-0002-8240-7060 AD - Department of Ophthalmology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China. AD - Chongqing Key Lab of Ophthalmology, Chongqing Eye Institute, Chongqing Branch of National Clinical Research Center for Ocular Diseases, Chongqing, China. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20230612 PL - United States TA - J Ocul Pharmacol Ther JT - Journal of ocular pharmacology and therapeutics : the official journal of the Association for Ocular Pharmacology and Therapeutics JID - 9511091 RN - 0 (Hedgehog Proteins) RN - 0 (Transforming Growth Factor beta2) RN - 0 (Zinc Finger Protein GLI1) RN - 0 (SHH protein, human) SB - IM MH - Humans MH - *Hedgehog Proteins/genetics/metabolism MH - Signal Transduction MH - Trabecular Meshwork/metabolism MH - *Transforming Growth Factor beta2/metabolism MH - Zinc Finger Protein GLI1/genetics/metabolism/pharmacology OTO - NOTNLM OT - IOP OT - Shh OT - glaucoma OT - trabecular meshwork cells EDAT- 2023/06/12 13:07 MHDA- 2023/09/20 06:42 CRDT- 2023/06/12 11:43 PHST- 2023/09/20 06:42 [medline] PHST- 2023/06/12 13:07 [pubmed] PHST- 2023/06/12 11:43 [entrez] AID - 10.1089/jop.2023.0022 [doi] PST - ppublish SO - J Ocul Pharmacol Ther. 2023 Sep;39(7):430-438. doi: 10.1089/jop.2023.0022. Epub 2023 Jun 12.