Spermiogenesis is an indispensable process occurring during the later stages of spermatogenesis.Despite multiple proteins being associated with spermiogenesis,the molecular mechanisms that control spermiogenesis remai...Spermiogenesis is an indispensable process occurring during the later stages of spermatogenesis.Despite multiple proteins being associated with spermiogenesis,the molecular mechanisms that control spermiogenesis remain poorly characterized.In this study,we show that 1700030J22Rik is exclusively expressed in testes of mice and investigate its roles in spermiogenesis using genetic and proteomic approaches.The deficiency in 1700030J22Rik in male mice results in severe subfertility,characterized by a substantial decrease in sperm concentration,motility,and abnormalities in the flagella.Furthermore,1700030J22RIK interacts with the A-kinase-anchoring protein AKAP3,and 1700030J22Rik knockout decreases AKAP3 and AKAP4 protein levels.Additionally,the absence of 1700030J22RIK alters spermatozoal levels of the subunits of protein kinase A,leading to reduced protein phosphorylation and impaired sperm motility.This study reveals that 1700030J22Rik plays a crucial role in the organization of sperm morphology and function in mice.展开更多
目的:研究1700001O22RIK(RIKEN c DNA 1700001O22)基因在小鼠睾丸的表达特征,结合生物信息学分析初步探讨其功能。方法:通过分析小鼠基因表达谱芯片,发现1700001O22RIK基因特异性表达于睾丸组织。采用RT-PCR、实时PCR、Western印迹及免...目的:研究1700001O22RIK(RIKEN c DNA 1700001O22)基因在小鼠睾丸的表达特征,结合生物信息学分析初步探讨其功能。方法:通过分析小鼠基因表达谱芯片,发现1700001O22RIK基因特异性表达于睾丸组织。采用RT-PCR、实时PCR、Western印迹及免疫组化等方法分析该基因在成年C57BL/6J小鼠各组织中的表达特征,以及不同发育阶段小鼠的睾丸组织中的表达变化。利用生物信息学软件对该基因进行相关生物信息学分析。结果:1700001O22RIK基因在小鼠睾丸组织中呈现特异性表达,表达水平具有年龄依赖性,在成年期表达最强;1700001O22RIK蛋白在成年小鼠睾丸组织中主要定位于精原细胞、精母细胞及圆形精子细胞。经生物信息学分析,1700001O22RIK基因编码蛋白氨基酸序列在人和小鼠具有高度同源性,提示该基因在哺乳动物进化过程中十分保守。结论:1700001O22RIK属于睾丸特异性基因,主要表达于生精小管的精原细胞、精母细胞及圆形精子细胞,提示其可能参与精子发生的调节。展开更多
This study investigated the expression and distribution of 2810408A11Rik in mouse testis and sperm, and explored its role in sperrnatogenesis and sperm function. The expression levels of 2810408A11Rik mRNA in multiple...This study investigated the expression and distribution of 2810408A11Rik in mouse testis and sperm, and explored its role in sperrnatogenesis and sperm function. The expression levels of 2810408A11Rik mRNA in multiple tissue samples were analyzed using bioinformatic resources and RT-PCR technique. A specific rabbit polyclonal antibody was prepared by prokaryotic expression of 2810408A11Rik recombinant protein and utilized for animal immunization. Western blotting, immunohistochemistry and immunofluorescence were used to detect the expression and distribution of 2810408A11Rik. The results of the bioinformatic analysi and RT-PCR showed that 2810408A11Rik mRNA was specifically expressed in mouse testis, and 2810408AllRik protein included a protein phosphatase inhibitor domain. Western blotting assays, immunohistochemistry and immunofluorescence confirmed the expression of 2810408A11Rik protein in mouse testis, especially in post-meiosis round and long spermatids, and that it is localized in the acrosome and the post-nucleus area of sperm. Our findings suggest that 2810408A11Rik may play an important role in spermatogenesis, sperm capacitation and fertilization.展开更多
基金supported by the National Key Research and Development Program of China(2024YFC2706800 to F.S.)the National Natural Science Foundation of China(U24A20657 F.S.)the Key Research and Development Program of Zhejiang Province(2023C03035 to F.S.).
文摘Spermiogenesis is an indispensable process occurring during the later stages of spermatogenesis.Despite multiple proteins being associated with spermiogenesis,the molecular mechanisms that control spermiogenesis remain poorly characterized.In this study,we show that 1700030J22Rik is exclusively expressed in testes of mice and investigate its roles in spermiogenesis using genetic and proteomic approaches.The deficiency in 1700030J22Rik in male mice results in severe subfertility,characterized by a substantial decrease in sperm concentration,motility,and abnormalities in the flagella.Furthermore,1700030J22RIK interacts with the A-kinase-anchoring protein AKAP3,and 1700030J22Rik knockout decreases AKAP3 and AKAP4 protein levels.Additionally,the absence of 1700030J22RIK alters spermatozoal levels of the subunits of protein kinase A,leading to reduced protein phosphorylation and impaired sperm motility.This study reveals that 1700030J22Rik plays a crucial role in the organization of sperm morphology and function in mice.
文摘目的:研究1700001O22RIK(RIKEN c DNA 1700001O22)基因在小鼠睾丸的表达特征,结合生物信息学分析初步探讨其功能。方法:通过分析小鼠基因表达谱芯片,发现1700001O22RIK基因特异性表达于睾丸组织。采用RT-PCR、实时PCR、Western印迹及免疫组化等方法分析该基因在成年C57BL/6J小鼠各组织中的表达特征,以及不同发育阶段小鼠的睾丸组织中的表达变化。利用生物信息学软件对该基因进行相关生物信息学分析。结果:1700001O22RIK基因在小鼠睾丸组织中呈现特异性表达,表达水平具有年龄依赖性,在成年期表达最强;1700001O22RIK蛋白在成年小鼠睾丸组织中主要定位于精原细胞、精母细胞及圆形精子细胞。经生物信息学分析,1700001O22RIK基因编码蛋白氨基酸序列在人和小鼠具有高度同源性,提示该基因在哺乳动物进化过程中十分保守。结论:1700001O22RIK属于睾丸特异性基因,主要表达于生精小管的精原细胞、精母细胞及圆形精子细胞,提示其可能参与精子发生的调节。
基金supported by the National 973 Project of China (No.2011CB944304)
文摘This study investigated the expression and distribution of 2810408A11Rik in mouse testis and sperm, and explored its role in sperrnatogenesis and sperm function. The expression levels of 2810408A11Rik mRNA in multiple tissue samples were analyzed using bioinformatic resources and RT-PCR technique. A specific rabbit polyclonal antibody was prepared by prokaryotic expression of 2810408A11Rik recombinant protein and utilized for animal immunization. Western blotting, immunohistochemistry and immunofluorescence were used to detect the expression and distribution of 2810408A11Rik. The results of the bioinformatic analysi and RT-PCR showed that 2810408A11Rik mRNA was specifically expressed in mouse testis, and 2810408AllRik protein included a protein phosphatase inhibitor domain. Western blotting assays, immunohistochemistry and immunofluorescence confirmed the expression of 2810408A11Rik protein in mouse testis, especially in post-meiosis round and long spermatids, and that it is localized in the acrosome and the post-nucleus area of sperm. Our findings suggest that 2810408A11Rik may play an important role in spermatogenesis, sperm capacitation and fertilization.
