es-Arp3 and es-Eps8 regulate spermatogenesis via microfilaments in the seminiferous tubule of Eriocheir sinensis.

Autor: Wang JM; The Sperm Laboratory, College of Life Sciences, Zhejiang University, Hangzhou 310058, China., Li ZF; The Sperm Laboratory, College of Life Sciences, Zhejiang University, Hangzhou 310058, China., Qi HY; The Sperm Laboratory, College of Life Sciences, Zhejiang University, Hangzhou 310058, China., Zhao Z; The Sperm Laboratory, College of Life Sciences, Zhejiang University, Hangzhou 310058, China., Yang WX; The Sperm Laboratory, College of Life Sciences, Zhejiang University, Hangzhou 310058, China. Electronic address: wxyang@zju.edu.cn.
Jazyk: angličtina
Zdroj: Tissue & cell [Tissue Cell] 2023 Apr; Vol. 81, pp. 102028. Date of Electronic Publication: 2023 Jan 18.
DOI: 10.1016/j.tice.2023.102028
Abstrakt: Spermatogenesis is a complicated process that includes spermatogonia differentiation, spermatocytes meiosis, spermatids spermiogenesis and final release of spermatozoa. Actin-related protein 3 (Arp3) and epidermal growth factor receptor pathway substrate 8 (Eps8) are two actin binding proteins that regulate cell adhesion in seminiferous tubules during mammalian spermatogenesis. However, the functions of these two proteins during spermatogenesis in nonmammalian species, especially Crustacea, are still unknown. Here, we cloned es-Arp3 and es-Eps8 from the testis of Chinese mitten crab Eriocheir sinensis. es-Arp3 and es-Eps8 were located in spermatocytes, spermatids and spermatozoa. Knockdown of es-Arp3 and es-Eps8 in vivo caused morphological changes to seminiferous tubules including delayed spermatozoa release, shedding of germ cells and vacuoles. Filamentous-actin (F-actin) filaments network was disorganized due to deficiency of es-Arp3 and es-Eps8. Accompanying this, four junctional proteins (α-catenin, β-catenin, pinin and ZO1) displayed abnormal expression levels as well as penetrating biotin signals in seminiferous tubules. We also used the Arp2/3 complex inhibitor CK666 to block es-Arp3 activity and supported es-Arp3 knockdown results. In summary, our study demonstrated for the first time that es-Arp3 and es-Eps8 are important for spermatogenesis via regulating microfilament-mediated cell adhesion in Eriocheir sinensis.
Competing Interests: Author statements The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.
(Copyright © 2023 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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