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Microarray meta-analysis identifies candidate genes for human spermatogenic arrest

Fang Kui1,2, Hui Ye1, Xi-Ling Chen2

  • 1Clinical Laboratory, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China.

Andrologia
|May 1, 2019
PubMed

Insights

This study analyzed gene expression in human testes to understand male infertility. It identified key genes and pathways, revealing G1 mitotic cell cycle arrest as a feature of impaired spermatogenesis.

Area of Science:

  • Reproductive Biology
  • Genetics
  • Bioinformatics

Background:

  • Male infertility impacts many couples, with rising prevalence.
  • Human testis research is limited, necessitating advanced analytical approaches.
  • Understanding gene expression is crucial for elucidating male infertility mechanisms.

Purpose of the Study:

  • To investigate the gene expression profile of impaired human testes.
  • To identify novel hub genes and pathways associated with male infertility phenotypes.
  • To explore the role of p53-interacting proteins in spermatogenesis.

Main Methods:

  • Meta-analysis of 7 microarray datasets comprising 178 human testis samples.
  • Categorization of impaired testes into four pathological phenotypes and a normal phenotype based on Johnsen score.
  • Bioinformatics analysis of differentially expressed genes (DEGs) to identify key molecular players.

Main Results:

  • Identification of novel hub genes and pathways implicated in male infertility.
  • Discovery of G1 mitotic cell cycle arrest as a significant feature in pre-meiotic arrest.
  • Selection of fifteen p53-interacting proteins, including ABL1 and HDAC2, with potential roles in spermatogenesis.

Conclusions:

  • The study provides insights into the molecular mechanisms underlying male infertility.
  • G1 mitotic cell cycle arrest is a key event in pre-meiotic arrest during male infertility.
  • Further research into identified p53-interacting proteins may reveal new therapeutic targets for male infertility.
Keywords:
ABL1HDAC2cell cyclemicroarrayspermatogenesis

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