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Expression and effects of TSP50 in mouse embryo and cardiac myocyte development

Hui-Han Ai1, Biao Liu2, Mei-Ting Yang3

  • 1National Engineering Laboratory for Druggable Gene and Protein Screening, Northeast Normal University, Changchun, 130024, China; Institute of Genetics and Cytology, Northeast Normal University, Changchun, 130024, China.

Biochemical and Biophysical Research Communications
|May 30, 2018
PubMed

Insights

Testis-specific protease 50 (TSP50) is crucial for mouse embryonic development and cardiac myocyte differentiation. Its dynamic expression influences zygote development and GATA-4 regulation.

Area of Science:

  • Developmental Biology
  • Molecular Biology
  • Genetics

Background:

  • Testis-specific protease 50 (TSP50) is a serine protease-like protein.
  • TSP50 is normally expressed in spermatocytes but abnormally activated in various cancers.
  • Its role in embryonic development is largely unexplored.

Purpose of the Study:

  • To investigate the expression pattern of TSP50 during mouse embryonic development.
  • To elucidate the function of TSP50 in early embryonic development and cardiac myocyte differentiation.

Main Methods:

  • Immunofluorescence, RT-PCR, and Western blotting were used to characterize TSP50 distribution.
  • Gene manipulation techniques, including microinjection for overexpression and RNA interference for knockdown, were employed.
  • P19 cell differentiation was analyzed to study TSP50's role in cardiac myocyte development.

Main Results:

  • TSP50 exhibited dynamic expression throughout oocyte and embryonic development.
  • TSP50 overexpression accelerated zygote development, while knockdown significantly retarded it.
  • TSP50 expression increased during early embryonic stages and decreased during cardiac myocyte differentiation, inversely correlating with GATA-4 levels.

Conclusions:

  • TSP50 plays a significant role in mouse embryonic development.
  • TSP50 is involved in the differentiation of cardiac myocytes.
  • TSP50 may regulate cardiac myocyte differentiation through GATA-4.
Keywords:
Cardiacmyocyte developmentEmbryonic developmentP19 cellTSP50cell differentiation

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