Planar cell polarity (PCP) proteins and spermatogenesis

Haiqi Chen, C. Yan Cheng

Research output: Contribution to journalReview articlepeer-review

11 Scopus citations

Abstract

In adult mammalian testes, spermatogenesis is comprised of several discrete cellular events that work in tandem to support the transformation and differentiation of diploid spermatogonia to haploid spermatids in the seminiferous epithelium during the seminiferous epithelial cycle. These include: self-renewal of spermatogonial stem cells via mitosis and their transformation into differentiated spermatogonia, meiosis I/II, spermiogenesis and the release of sperms at spermiation. Studies have shown that these cellular events are under precise and coordinated controls of multiple proteins and signaling pathways. These events are also regulated by polarity proteins that are known to confer classical apico-basal (A/B) polarity in other epithelia. Furthermore, spermatid development is likely supported by planar cell polarity (PCP) proteins since polarized spermatids are aligned across the plane of seminiferous epithelium in an orderly fashion, analogous to hair cells in the cochlea of the inner ear. Thus, the maximal number of spermatids can be packed and supported by a fixed population of differentiated Sertoli cells in the limited space of the seminiferous epithelium in adult testes. In this review, we briefly summarize recent findings regarding the role of PCP proteins in the testis. This information should be helpful in future studies to better understand the role of PCP proteins in spermatogenesis.

Original languageEnglish (US)
Pages (from-to)99-109
Number of pages11
JournalSeminars in Cell and Developmental Biology
Volume59
DOIs
StatePublished - Nov 1 2016
Externally publishedYes

Keywords

  • Germ cells
  • Planar cell polarity proteins
  • Seminiferous epithelial cycle
  • Sertoli cells
  • Spermatogenesis
  • Testis
  • Wnt/PCP signaling

ASJC Scopus subject areas

  • Developmental Biology
  • Cell Biology

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