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Regulates the Proliferation and Apoptosis of Ovarian Granulosa Cells by Targeting in Zhedong White Geese

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Journal Animals (Basel)
Date 2025 Mar 13
PMID 40075946
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Abstract

The proliferation and apoptosis of ovarian granulosa cells (GC) is critical for follicular development and ovulation, especially for egg-laying performance in female birds. In geese, follicular atrophy is accompanied by follicular GC apoptosis during brooding stages. MicroRNAs are involved in follicular development, atrophy, ovulation, and degeneration. Our previous high-throughput sequencing study of ovaries from laying and brooding geese revealed that may be involved in follicle growth and development, as well as follicle cell proliferation and apoptosis in geese. To further investigate the effect of on GC in geese, we screened the target gene of () and constructed a overexpression and interference vector, synthesized a small interfering RNA for . The results showed that after overexpression, the mRNA and protein expression of proliferation-related genes (, , , and ) were significantly decreased, the mRNA and protein expression of apoptosis-related genes (, , and ) were significantly increased, and the mRNA and protein expression of anti-apoptosis gene were significantly decreased. While the mRNA and protein expressions of , , , and were significantly decreased after the downregulation of expression, the mRNA and protein expressions of , , and were significantly increased, and the mRNA and protein expression of was significantly decreased. In conclusion, inhibited proliferation and promoted apoptosis of follicular GC by targeting in Zhedong White geese. Apoptosis of GC leads to follicular atresia, which in turn leads to brooding behavior in female geese. Therefore, it is possible to explore inhibiting the expression of in production to alter the brooding behavior of Zhedong White Geese, thereby improving egg production and economic returns for producers.

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