PMID- 38034716 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20231202 IS - 2405-8440 (Print) IS - 2405-8440 (Electronic) IS - 2405-8440 (Linking) VI - 9 IP - 11 DP - 2023 Nov TI - Qi-Shen-Tang alleviates retinitis pigmentosa by inhibiting ferroptotic features via the NRF2/GPX4 signaling pathway. PG - e22443 LID - 10.1016/j.heliyon.2023.e22443 [doi] LID - e22443 AB - Ferroptosis has been observed during retinal photoreceptor cell death, suggesting that it plays a role in retinitis pigmentosa (RP) pathogenesis. Qi-Shen-Tang (QST) is a combination of two traditional Chinese medicines used for the treatment of ophthalmic diseases; however, its mechanism of action in RP and ferroptosis remains unclear. Therefore, this study aimed to explore the effect and potential molecular mechanisms of QST on RP. QST significantly improved tissue morphology and function of the retina in the RP model mice. A significant increase in retinal blood flow and normalization of the fundus structure were observed in mice in the treatment group. After QST treatment, the level of iron and the production of malondialdehyde decreased significantly; the levels of superoxide dismutase and glutathione increased significantly; and the protein expression of glutathione peroxidase 4 (GPX4), glutathione synthetase, solute carrier family 7 member 11, and nuclear factor erythroid 2-related factor 2 (NRF2) increased significantly. The molecular docking results demonstrated potential interactions between the small molecules of QST and the key proteins of NRF2/GPX4 signaling pathway. Our results indicate that QST may inhibit ferroptosis by inhibiting the NRF2/GPX4 signaling pathway, thereby reducing RP-induced damage to retinal tissue. CI - (c) 2023 The Authors. FAU - Xiong, Meng AU - Xiong M AD - Hunan Provincial Key Laboratory of Traditional Chinese Medicine Diagnostics, Hunan University of Chinese Medicine, Changsha, Hunan 410208, China. AD - School of Traditional Chinese Medicine, Hunan University of Chinese Medicine, Changsha, Hunan 410208, China. FAU - Ou, Chen AU - Ou C AD - Hunan Provincial Key Laboratory for Prevention and Treatment of Ophthalmology and Otolaryngology Diseases with Chinese Medicine, Hunan University of Chinese Medicine, Changsha, Hunan 410208, China. FAU - Yu, Chang AU - Yu C AD - Hunan Provincial Key Laboratory of Traditional Chinese Medicine Diagnostics, Hunan University of Chinese Medicine, Changsha, Hunan 410208, China. AD - School of Traditional Chinese Medicine, Hunan University of Chinese Medicine, Changsha, Hunan 410208, China. FAU - Qiu, Jingyue AU - Qiu J AD - Hunan Provincial Key Laboratory of Traditional Chinese Medicine Diagnostics, Hunan University of Chinese Medicine, Changsha, Hunan 410208, China. AD - School of Traditional Chinese Medicine, Hunan University of Chinese Medicine, Changsha, Hunan 410208, China. FAU - Lu, Jing AU - Lu J AD - School of Medicine, Hunan University of Chinese Medicine, Changsha, Hunan 410208, China. FAU - Fu, Chaojun AU - Fu C AD - School of Traditional Chinese Medicine, Hunan University of Chinese Medicine, Changsha, Hunan 410208, China. AD - Hunan Provincial Key Laboratory for Prevention and Treatment of Ophthalmology and Otolaryngology Diseases with Chinese Medicine, Hunan University of Chinese Medicine, Changsha, Hunan 410208, China. FAU - Peng, Qinghua AU - Peng Q AD - Hunan Provincial Key Laboratory for Prevention and Treatment of Ophthalmology and Otolaryngology Diseases with Chinese Medicine, Hunan University of Chinese Medicine, Changsha, Hunan 410208, China. FAU - Zeng, Meiyan AU - Zeng M AD - School of Traditional Chinese Medicine, Hunan University of Chinese Medicine, Changsha, Hunan 410208, China. FAU - Song, Houpan AU - Song H AD - Hunan Provincial Key Laboratory of Traditional Chinese Medicine Diagnostics, Hunan University of Chinese Medicine, Changsha, Hunan 410208, China. AD - School of Traditional Chinese Medicine, Hunan University of Chinese Medicine, Changsha, Hunan 410208, China. AD - Hunan Provincial Key Laboratory for Prevention and Treatment of Ophthalmology and Otolaryngology Diseases with Chinese Medicine, Hunan University of Chinese Medicine, Changsha, Hunan 410208, China. LA - eng PT - Journal Article DEP - 20231119 PL - England TA - Heliyon JT - Heliyon JID - 101672560 PMC - PMC10687062 OTO - NOTNLM OT - GPX4 OT - NRF2 OT - Qi-Shen-Tang OT - Retinitis pigmentosa OT - ferroptosis COIS- The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. EDAT- 2023/11/30 18:45 MHDA- 2023/11/30 18:46 PMCR- 2023/11/19 CRDT- 2023/11/30 17:37 PHST- 2023/02/23 00:00 [received] PHST- 2023/11/09 00:00 [revised] PHST- 2023/11/13 00:00 [accepted] PHST- 2023/11/30 18:46 [medline] PHST- 2023/11/30 18:45 [pubmed] PHST- 2023/11/30 17:37 [entrez] PHST- 2023/11/19 00:00 [pmc-release] AID - S2405-8440(23)09651-2 [pii] AID - e22443 [pii] AID - 10.1016/j.heliyon.2023.e22443 [doi] PST - epublish SO - Heliyon. 2023 Nov 19;9(11):e22443. doi: 10.1016/j.heliyon.2023.e22443. eCollection 2023 Nov.