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Motility and protein phosphorylation in healthy and asthenozoospermic sperm

  • Chying Chyuan Chan
  • , Hao Ai Shui*
  • , Ching Hsiang Wu
  • , Chih Yuan Wang
  • , Guang Huan Sun
  • , Han Min Chen
  • , Gwo Jang Wu
  • *Corresponding author for this work
  • National Defense Medical Center Taiwan
  • Taipei City Hospital
  • Far Eastern Memorial Hospital
  • National Taiwan University
  • Triservice General Hospital Taiwan
  • Fu Jen Catholic University

Research output: Contribution to journalJournal Article peer-review

76 Scopus citations

Abstract

The majority of male infertility results from poor sperm motility. A direct link between altered protein phosphorylation and aberrant sperm motility has not been established. To address this issue, sperm samples obtained from 20 donors with healthy sperm and 20 donors with aberrantly motile sperm were subjected to computer assisted semen analysis (CASA), proteomic analysis, Western blot, and immunofluorescent staining. Proteomic analysis identified 12 protein spots as having differential phosphorylation, including gamma-tubulin complex associated protein 2 (GCP2). Western blot and immunofluorescence demonstrated differential expression of gamma-tubulin between healthy and aberrantly motile sperm. In conclusion, hypophosphorylated proteins and reduced expression of gamma-tubulin may be associated with low motility sperm.

Original languageEnglish
Pages (from-to)5382-5386
Number of pages5
JournalJournal of Proteome Research
Volume8
Issue number11
DOIs
StatePublished - 06 11 2009
Externally publishedYes

Keywords

  • Gamma-tubulin
  • Protein phosphorylation
  • Sperm motility
  • Spermatozoa infertility

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