期刊
FRONTIERS IN PHARMACOLOGY
卷 12, 期 -, 页码 -出版社
FRONTIERS MEDIA SA
DOI: 10.3389/fphar.2021.627503
关键词
airway hyperresponsiveness; remodeling; chronic obstructive pulmonary desease; cystic fibrosis; Pulmonary hypertension; asthma; asymmetric dimethyl arginine
NO, synthesized from L-arginine by nitric oxide synthases, plays multiple roles in lung development, smooth muscle tone regulation, inflammation, and host defense. Imbalances in L-arginine/NO are associated with various pulmonary diseases. Therapeutic strategies targeting this pathway are under investigation for potential clinical applications.
Nitric oxide (NO) is produced by a family of isoenzymes, nitric oxide synthases (NOSs), which all utilize L-arginine as substrate. The production of NO in the lung and airways can play a number of roles during lung development, regulates airway and vascular smooth muscle tone, and is involved in inflammatory processes and host defense. Altered L-arginine/NO homeostasis, due to the accumulation of endogenous NOS inhibitors and competition for substrate with the arginase enzymes, has been found to play a role in various conditions affecting the lung and in pulmonary diseases, such as asthma, chronic obstructive pulmonary disease (COPD), cystic fibrosis (CF), pulmonary hypertension, and bronchopulmonary dysplasia. Different therapeutic strategies to increase L-arginine levels or bioavailability are currently being explored in pre-clinical and clinical studies. These include supplementation of L-arginine or L-citrulline and inhibition of arginase.
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