• PMID: 21898991
• Gene Name: SEPTIN4
• Condition: Idiopathic asthenozoospermic
• Association: Associated
• Sex: Male
• Infertility type: Male infertility
• Associated genes: 2019-09-04
• Other associated phenotypes: Idiopathic asthenozoospermic

[Expression of SEPT4 protein in the ejaculated sperm of idiopathic asthenozoospermic men]

Li YS, Feng XX, Ji XF, Wang QX, Gao XM, Yang XF, Pan ZH, Sun L, Ma K.

OBJECTIVE: To investigate the role of the SEPT4 protein in the pathogenesis of idiopathic asthenozoospermia. METHODS: Samples of ejaculated sperm from idiopathic asthenozoospermia patients and normozoospermic men were separated and purified by Percoll discontinuous density gradients, the distribution and expression of SEPT4 in the sperm samples were determined by immunocytochemistry, and the expressions of SEPT4 mRNA and SEPT4 protein were detected by RT-PCR and Western blot. RESULTS: Immunocytochemistry showed that the expression of SEPT4, located in the annulus, was significantly reduced in the sperm of the idiopathic asthenozoospermia patients (t = 3.452, P < 0.01). RT-PCR revealed that the expression of SEPT4 mRNA was significantly lower in the sperm of the idiopathic asthenozoospermia patients than in those of the normozoospermic men (t = 3.521, P < 0.05). Western blot confirmed the results of RT-PCR (t = 5.872, P < 0.05). CONCLUSION: The expression of SEPT4 is significantly decreased in the ejaculated sperm of idiopathic asthenozoospermia patients, which might be one of the causes of idiopathic asthenozoospermia. FAU - Li, Yu-Shan AU - Li YS AD - Human Sperm Bank, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, China. liyushanrun@126.com FAU - Feng, Xiao-Xia AU - Feng XX FAU - Ji, Xiao-Fei AU - Ji XF FAU - Wang, Quan-Xian AU - Wang QX FAU - Gao, Xue-Min AU - Gao XM FAU - Yang, Xian-Feng AU - Yang XF FAU - Pan, Zhou-Hui AU - Pan ZH FAU - Sun, Lin AU - Sun L