Tid1-S attenuates LPS-induced cardiac hypertrophy and apoptosis through ER-a mediated modulation of p-PI3K/p-Akt signaling cascade

J Cell Biochem. 2019 Oct;120(10):16703-16710. doi: 10.1002/jcb.28928. Epub 2019 May 13.

Abstract

Myocardial dysfunction is clinically relevant? repercussion that follows sepsis. Tid 1 protein has been implicated in many biological process. However, the role of Tid 1 in lipopolysaccharide (LPS)-induced cardiomyocyte hypertrophy and apoptosis remains elusive. In the current research endeavor, we have elucidated the role of Tid1-S on LPS-induced cardiac hypertrophy and apoptosis. Interestingly, we found that overexpression of Tid1-S suppressed TLR-4, NFATc3, and BNP protein expression which eventually led to inhibition of LPS-induced cardiac hypertrophy. Moreover, Tid1-S overexpression attenuated cellular apoptosis and activated survival proteins p-PI3K and pser473 Akt. Besides this, Tid1-S overexpression enhanced ER-a protein expression. Collectively, our data suggest that Tid1-S plausibly enhance ER-a protein and further activate p-PI3K and p ser473 Akt survival protein expression; which thereby led to attenuation of LPS-induced apoptosis in cardiomyoblast cells. Interestingly, our data suggest that Tid1-S is involved in attenuation of cardiomyoblast cells damages induced by LPS.

Keywords: Akt; H9c2; LPS; PI3K; Tid-1S.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • Aged
  • Aged, 80 and over
  • Animals
  • Apoptosis / drug effects*
  • Cardiomegaly / chemically induced
  • Cardiomegaly / metabolism*
  • Cardiomegaly / pathology
  • Estrogen Receptor alpha / metabolism*
  • Female
  • Gene Expression Regulation / drug effects
  • HSP40 Heat-Shock Proteins / metabolism*
  • Humans
  • Lipopolysaccharides / toxicity*
  • Male
  • Middle Aged
  • Myocytes, Cardiac / metabolism*
  • Myocytes, Cardiac / pathology
  • Phosphatidylinositol 3-Kinases / metabolism
  • Proto-Oncogene Proteins c-akt / metabolism
  • Rats
  • Signal Transduction / drug effects*

Substances

  • DNAJA3 protein, human
  • ESR1 protein, human
  • Estrogen Receptor alpha
  • HSP40 Heat-Shock Proteins
  • Lipopolysaccharides
  • Proto-Oncogene Proteins c-akt