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

Shinichi Hayasaka, Yukihiro Terada, Kichiya Suzuki, Haruo Murakawa, Ikuo Tachibana, Tadashi Sankai, Takashi Murakami, Nobuo Yaegashi, Kunihiro Okamura

Research output: Contribution to journalArticlepeer-review

35 Citations (Scopus)

Abstract

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 fascicularis). Immunocytochemical detection and reverse transcription-polymerase chain reaction (RT-PCR) analysis of the proteins 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.

Original languageEnglish
Pages (from-to)561-568
Number of pages8
JournalAsian Journal of Andrology
Volume10
Issue number4
DOIs
Publication statusPublished - 2008 Jul

Keywords

  • Intramanchette transport
  • Manchette
  • Spermiogenesis

ASJC Scopus subject areas

  • Urology

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