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Related Concept Videos

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Mitogen-activated protein kinase, or MAPK pathway, activates three sequential kinases to regulate cellular responses such as proliferation, differentiation, survival, and apoptosis. The canonical MAPK pathway starts with a mitogen or growth factor binding to an RTK. The activated RTKs stimulate Ras, which recruits Raf or MAP3 Kinase (MAPKKK), the first kinase of the MAPK signaling cascade. Raf further phosphorylates and activates MEK or MAP2 Kinases (MAPKK), which in turn phosphorylates MAP...
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Acute Myocardial Infarction in Rats
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p38 MAP kinases in the heart.

Tomohiro Yokota1, Yibin Wang1

  • 1Department of Anesthesiology, Cardiovascular Research Laboratories, David Geffen School of Medicine, University of California, Los Angeles, CA 90095, USA; Department of Physiology and Medicine, Cardiovascular Research Laboratories, David Geffen School of Medicine, University of California, Los Angeles, CA 90095, USA.

Gene
|September 23, 2015
PubMed
Summary

p38 kinases, including p38α, are crucial signaling molecules involved in various biological processes. This review highlights their significant roles in heart function, particularly myocyte proliferation, apoptosis, and hypertrophy.

Keywords:
Heart failureHeart physiologyStress-signalingp38 MAP kinase

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Area of Science:

  • Molecular Biology
  • Cell Signaling
  • Cardiovascular Research

Background:

  • p38 kinases are a subclass of mitogen-activated protein kinases (MAPK).
  • p38α, the prototypic member, is known for its role in inflammatory cytokine production.
  • Recent research indicates p38 kinases have broader functions beyond immune regulation.

Purpose of the Study:

  • To review the structure and molecular biology of p38 kinases.
  • To elucidate the specific roles of p38 kinases in cardiac function.
  • To examine their involvement in myocyte proliferation, apoptosis, and hypertrophy.

Main Methods:

  • Literature review focusing on p38 kinase signaling.
  • Analysis of studies investigating p38 kinase roles in cardiovascular systems.
  • Synthesis of data on molecular mechanisms in cardiac cells.

Main Results:

  • p38 kinases exhibit diverse signaling capabilities.
  • p38 kinases play critical roles in multiple tissues, including the heart.
  • Specific involvement in regulating myocyte proliferation, programmed cell death, and cardiac growth.

Conclusions:

  • p38 kinases are key regulators of cardiac cellular processes.
  • Understanding p38 kinase pathways is vital for cardiovascular research.
  • Further investigation into p38 kinase functions may reveal therapeutic targets.