Intramanchette transport during primate spermiogenesis:expression of dynein, myosin Va, motor recruiter myosin Va,Ⅶa-Rab27a/b interacting protein, and Rab27b in the manchette during human and monkey spermiogenesis

• 来源期刊: 亚洲男性学杂志（英文版）
• 年，卷（期）: 2008,（4）
• 页码范围: 561-568
• 页数: 8页
• 语种: 英文

摘要

Aim: To show whether molecular motor dynein on a microtubule track, molecular motor myosin Va, motor recruiter myosin Va, Ⅶa-Rab27a/b interacting protein (MyRIP), and vesicle receptor Rab27b on an F-actin track were present during human and monkey spermiogenesis involving intramanchette transport (IMT). Methods: Spermiogenic cells were obtained from three men with obstructive azoospermia and normal adult cynomolgus monkey (Macaca fascieularis). Immunocytochemical detection and reverse transcription-polymerase chain reaction (RT-PCR) analysis of the pro- teins were carried out. Samples were analyzed by light microscope. Results: Using RT-PCR, we found that dynein, myosin Va, MyRIP and Rab27b were expressed in monkey testis. These proteins were localized to the manchette, as shown by immunofluorescence, particularly during human and monkey spermiogenesis. Conclusion: We speculate that during primate spermiogenesis, those proteins that compose microtubule-based and actin-based vesicle transport systems are actually present in the manchette and might possibly be involved in intramanchette transport. (Asian J Androl 2008 Jul; 10: 561-568)