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• W4287958753 abstract "Abstract Background Granulosa cells (GCs) are multilayered somatic cells within the follicle that provide physical support and microenvironment for the developing oocyte. In recent years, the role of Neuregulin-1 (NRG1), a member of the EGF-like factor family, has received considerable attention due to its neurodevelopmental and cardiac function. However, the exact physiological role of NRG1 in GC is mainly unknown. In order to confirm that NRG1 plays a regulatory role in rat GC functions, endogenous NRG1-knockdown studies were carried out in GCs using RNA interference methodology. Results Knockdown of NRG1 in GCs resulted in the enhanced expression and secretion of the cytokines and chemokines. In addition, the phosphorylation of PI3K/Akt/ERK1/2 was significantly low in GCs under these experimental conditions. Moreover, in vitro experimental studies suggest that tumor necrosis factor-α (TNFα) treatment causes the physical destruction of GCs by activating caspase-3/7 activity. In contrast, exogenous NRG1 co-treatment of GCs delayed the onset of TNFα-induced apoptosis and inhibited the activation of caspase-3/7 activity. Furthermore, current experimental studies suggest that gonadotropins promote differential expression of NRG1 and ErbB3 receptors in GCs of the antral follicle. Interestingly, NRG1 and ErbB3 were intensely co-localized in the mural and cumulus GCs and cumulus-oocyte complex of pre-ovulatory follicles in the estrus stage. Conclusions The present studies suggest that gonadotropins-dependent NRG1-signaling in GCs may require the balance of the cytokines and chemokines expression and secretion, ultimately which may be supporting the follicular maturation and oocyte competence for ovulation and preventing follicular atresia." @default.
• W4287958753 created "2022-07-26" @default.
• W4287958753 creator A5005368164 @default.
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• W4287958753 date "2022-07-26" @default.
• W4287958753 modified "2023-10-14" @default.
• W4287958753 title "Neuregulin-1 signaling regulates cytokines and chemokines expression and secretion in granulosa cell" @default.
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• W4287958753 doi "https://doi.org/10.1186/s13048-022-01021-0" @default.
• W4287958753 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/35883098" @default.
• W4287958753 hasPublicationYear "2022" @default.
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