Localization of heat shock protein 20 in swine carotid artery

Description

Background Cyclic nucleotides can relax vascular smooth muscle by mechanisms distal to myosin regulatory light chain (MRLC) phosphorylation. This mechanism, termed relaxation without MRLC dephosphorylation, may be regulated by ser16 phosphorylation of heat shock protein 20 (HSP20). Results Confocal imaging of HSP20 in smooth muscle tissues revealed that HSP20 was present throughout the cytoplasm, although some focal regions of the cytoplasm were found to contain more HSP20 than the remaining cytoplasm. The distribution of HSP20 within the cytoplasm was not altered by histamine, forskolin, or nitroglycerin. Conclusion Cytoplasmic localization of HSP20 is consistent with a potential function of HSP20 as a regulator of smooth muscle contractile force.

Resources

Name Format Description Link
21 Visit the original government dataset for complete information, documentation, and data access. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC48151/

Tags

  • smooth-muscle-contraction
  • swine-carotid-artery
  • nih
  • hsp20-protein
  • cyclic-nucleotides

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