Endothelin-1 (1-31): from chymase-dependent synthesis to cardiovascular pathologies

Area of Science:

• Biochemistry
• Vascular Biology
• Enzymology

Background:

• Mast cell-derived chymase is a serine protease involved in peptide synthesis.
• Chymase is implicated in the production of angiotensin II and endothelin-1.
• Limited availability of specific chymase inhibitors has hindered research.

Purpose of the Study:

• To review the role of chymase in the production of angiotensin II and endothelin-1.
• To discuss the significance of chymase-dependent endothelin-1 production in cardiovascular diseases.
• To highlight the impact of novel selective chymase inhibitors on research.

Main Methods:

• Literature review of studies on chymase, angiotensin II, and endothelin-1.
• Analysis of in vitro and in vivo experimental data.
• Discussion of recent advancements in selective chymase inhibitor development.

Main Results:

• Chymase is a major enzyme for angiotensin II production in interstitial tissues.
• Chymase can mature endothelin-1 from its precursor in vitro.
• Selective chymase inhibitors are enabling new insights into inflammatory vascular diseases.

Conclusions:

• Chymase is crucial for producing key vasoactive peptides, angiotensin II and endothelin-1.
• The chymase/endothelin-1/angiotensin II pathway is increasingly recognized in cardiovascular pathologies.
• Further research with selective inhibitors is vital to elucidate chymase's role in vascular disease.