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Gelsolin regulates proliferation, apoptosis and invasion in natural killer/T-cell lymphoma cells

Yanwei Guo1,2, Hongqiao Zhang2, Xin Xing2

  • 1Department of Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, PR China.

Biology Open
|November 28, 2017
PubMed

Insights

Gelsolin (GSN) suppresses natural killer (NK) cell proliferation and invasion while promoting apoptosis in extranodal nasal-type T-cell lymphoma (NKTCL). This occurs via the PI3K/Akt signaling pathway, offering potential therapeutic insights.

Area of Science:

  • Oncology
  • Cell Biology
  • Immunology

Background:

  • Gelsolin (GSN) expression is altered in various cancers, including extranodal nasal-type natural killer/T-cell lymphoma (NKTCL).
  • The specific role and molecular mechanisms of GSN in NKTCL pathogenesis are not well understood.

Purpose of the Study:

  • To investigate the biological function of gelsolin (GSN) in natural killer (NK) cell lines.
  • To elucidate the underlying molecular mechanisms of GSN's action in the context of NKTCL.

Main Methods:

  • Overexpression of GSN in the YTS NK cell line.
  • Assessment of cell proliferation, colony formation, invasion, and apoptosis.
  • Analysis of PI3K and p-Akt protein levels.
  • Inhibition of the PI3K/Akt signaling pathway.

Main Results:

  • GSN overexpression significantly inhibited YTS cell proliferation, colony formation, and invasion.
  • GSN upregulation markedly promoted apoptosis in YTS cells.
  • Increased GSN levels correlated with decreased PI3K and p-Akt expression.
  • Blocking the PI3K/Akt pathway mimicked the suppressive and pro-apoptotic effects of GSN.

Conclusions:

  • GSN acts as a tumor suppressor in NK cells relevant to NKTCL.
  • GSN inhibits proliferation and invasion while inducing apoptosis in YTS cells.
  • The PI3K/Akt signaling pathway is a key mediator of GSN's biological effects in this context.
Keywords:
ApoptosisCell proliferationGelsolinInvasionNK/T-cell lymphoma cell

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