PRSS23 Promotes Ovarian Follicular Atresia in Wuding Chickens by Coordinately Suppressing Steroidogenesis and PI3K/AKT/mTOR Survival Signaling

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	PRSS23 Promotes Ovarian Follicular Atresia in Wuding Chickens by Coordinately Suppressing Steroidogenesis and PI3K/AKT/mTOR Survival Signaling
	Wang, CL; Zhu, W; Wan, EM; Li, JD; Fan, XY; Miao, YW
	2026
发表期刊	Genes
卷号	17 期号:3
摘要	Background: Broodiness is a major limiting factor for reproductive efficiency in indigenous avian breeds, a phenomenon underpinned physiologically by granulosa cell (GC) apoptosis and subsequent follicular atresia. While Serine Protease 23 (PRSS23) has been implicated in mammalian ovarian remodeling, its specific regulatory function in avian follicular dynamics remains elusive. Methods: Utilizing the Wuding chicken-an indigenous breed distinguished by robust environmental adaptability but compromised by high broodiness frequency-as a biological model, this study dissected the molecular mechanism of PRSS23-mediated follicular regression. We cloned the complete coding sequence of the Wuding chicken PRSS23 gene, characterized its spatiotemporal expression profile, and interrogated its function in primary GCs via gain- and loss-of-function assays. Results: RT-qPCR analysis revealed that PRSS23 is differentially expressed across the hypothalamic-pituitary-ovarian (HPO) axis, with ovarian expression being significantly upregulated during the broody period compared to the laying period. Mechanistically, PRSS23 overexpression significantly downregulated the expression of follicle-stimulating hormone receptor (FSHR) and key steroidogenic enzymes (STAR, CYP19A1, HSD3 beta 1), thereby suppressing the expression of genes governing the biosynthesis potential of progesterone and estradiol. Concurrently, PRSS23 overexpression was associated with transcriptional repression of components of the PI3K/AKT/mTOR signaling cascade; this transcriptional regulation further induced cell cycle arrest at the G0/G1 phase, and activated the mitochondrial apoptotic pathway characterized by BAX upregulation and BCL2 downregulation. Conversely, siRNA-mediated knockdown of PRSS23 alleviated these inhibitory effects, promoting GC proliferation and survival. Conclusions: These findings establish PRSS23 as a pivotal pro-atretic factor in Wuding chickens, driving ovarian atrophy through the dual transcriptional-level inhibition of steroidogenesis and survival signaling pathways. This study identifies a potential molecular target for marker-assisted selection programs aimed at attenuating broodiness while preserving the superior meat quality traits of indigenous poultry.
收录类别	SCIE
语种	英语
文献类型	期刊论文
条目标识符	http://ir.kiz.ac.cn/handle/152453/15135
专题	其他
推荐引用方式 GB/T 7714	Wang, CL,Zhu, W,Wan, EM,et al. PRSS23 Promotes Ovarian Follicular Atresia in Wuding Chickens by Coordinately Suppressing Steroidogenesis and PI3K/AKT/mTOR Survival Signaling[J]. Genes,2026,17(3).
APA	Wang, CL,Zhu, W,Wan, EM,Li, JD,Fan, XY,&Miao, YW.(2026).PRSS23 Promotes Ovarian Follicular Atresia in Wuding Chickens by Coordinately Suppressing Steroidogenesis and PI3K/AKT/mTOR Survival Signaling.Genes,17(3).
MLA	Wang, CL,et al."PRSS23 Promotes Ovarian Follicular Atresia in Wuding Chickens by Coordinately Suppressing Steroidogenesis and PI3K/AKT/mTOR Survival Signaling".Genes 17.3(2026).

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