Format

Send to:

Choose Destination
See comment in PubMed Commons below
Trends Cardiovasc Med. 2009 Jan;19(1):11-7. doi: 10.1016/j.tcm.2009.03.002.

Serine carboxypeptidases in regulation of vasoconstriction and elastogenesis.

Author information

  • 1Department of Medical Genetics, CHU Sainte-Justine Research Center, Departments of Pediatrics and Biochemistry, University of Montreal, Montreal, Quebec H3T1C5, Canada. alexei.pchejetski@umontreal.ca

Abstract

Lysosomal carboxypeptidases play important roles in catabolism of proteins and peptides and in posttranslational processing of other lysosomal enzymes. The major lysosomal serine carboxypeptidase A (cathepsin A [CathA]), also known as protective protein, activates and stabilizes two other lysosomal enzymes, beta-galactosidase and neuraminidase/sialidase 1. Genetic deficiency of CathA (galactosialidosis) causes the lysosomal storage of sialylated glycoconjugates and leads to a multiorgan pathology. The galactosialidosis patients also show arterial hypertension and cardiomyopathy, conditions not predicted from the lysosomal storage of glycoconjugates. This review summarizes the experimental data suggesting that both cardiovascular pathologies associate with persisted vasoconstrictions and impaired formation of the elastic fibers triggered by the deficiency of CathA. We also discuss the homologous serine carboxypeptidases, Scpep1 and vitellogenic-like carboxypeptidase, that are secreted from endothelial cells and could potentially affect the cardiovascular system.

PMID:
19467448
[PubMed - indexed for MEDLINE]
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for Elsevier Science
    Loading ...
    Write to the Help Desk