Abstract
Background
Skp1-Cullin-F-box (SCF) E3 ligase complex plays an important role in regulating spermatogenesis and fertility in mice. As a member of F-box proteins, the function of F-box and WD-40 domain protein 17 (Fbxw17) during spermatogenesis and fertility is unclear. In this study, we illustrate its function for spermatogenesis and fertility.
Methods and results
Here, we generated the Fbxw17 knockout (KO) mouse model by using the CRISPR/Cas9 system and analyzed the meiotic process and the fertility. Then, our results demonstrated that testis and sperm in the Fbxw17 KO mice had normal morphology. The testis weight, sperm count and fertility of Fbxw17 KO mice showed no significant difference compared with the wild-type mice. Subsequently, histological analysis of Fbxw17 KO mice revealed apparently normal germ cells of all stages and mature spermatozoa. Meanwhile, nuclear spread analysis showed that the synaptonemal complex formation and DSB repair proceeded normally in Fbxw17-deficient spermatocytes. Furthermore, we didn’t find defects in the meiotic prophase I spermatocytes and germ cells showed no apparent apoptosis in Fbxw17 KO mice.
Conclusions
Our results show that Fbxw17 is dispensable for fertility in mice.
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Data availability
We confirm that the data supporting the findings of this study are available within this article and its supplementary materials.
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Acknowledgements
Thanks for prof. Xiaodong Zhang and Qinghua Shi for the kindly gift of the pUC57-KAN-T7-sgRNA and pST374-Cas9-ZF-NLS vectors.
Funding
This work was supported by National Key Research & Development Program of China (Grand No. 2018YFC1003400), National Natural Science Foundation of China (Grand No. 31771588) and the Strategic Collaborative Research Program of the Ferring Institute of Reproductive Medicine (Grand No. FIRMC200509) to Mengcheng Luo.
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ZC performed most of the experiments and wrote the manuscript. DM, TJ and ZY helped in some of the experiments. JL, QS, ZL, ZD and YL participated in data analysis. ML, RL and YL revised the manuscript.
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C57BL/6 and ICR background mice were maintained on a pathogen-free animal facility and used for experimentation by following the animal protocols approved by the Institutional Animal Care and Use Committee of Wuhan University.
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Chen, Z., Ma, D., Jin, T. et al. Fbxw17 is dispensable for viability and fertility in mice. Mol Biol Rep 49, 7287–7295 (2022). https://doi.org/10.1007/s11033-022-07512-z
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DOI: https://doi.org/10.1007/s11033-022-07512-z