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S-nitrosothiol signaling in respiratory biology Gaston B; Singel D; Doctor A; Stamler JSAm J Respir Crit Care Med 2006[Jun]; 173 (11): 1186-93Genetic and biochemical data demonstrate a pivotal role for S-nitrosothiols (SNOs) in mediating the actions of nitric oxide synthases (NOSs). SNOs serve to convey NO bioactivity and to regulate protein function. This understanding is of immediate interest to the pulmonary clinical and research communities. This article reviews the following: (1) biochemical and cellular evidence that SNOs in amino acids, peptides, and proteins elicit NOS-dependent signaling in the respiratory system and (2) studies that link SNO signaling to pulmonary medicine. SNO-mediated signaling is involved in the regulation of minute ventilation, ventilation-perfusion matching, pulmonary arterial pressure, basal airway tone, and respiratory and peripheral muscle function. Derangements in SNO signaling are implicated in many disorders relevant to pulmonary and critical care medicine, including apnea, hypoxemia, pulmonary hypertension, asthma, cystic fibrosis, pneumonia, and septic shock.|Erythrocytes/physiology[MESH]|Hemoglobins/*metabolism[MESH]|Humans[MESH]|Lung Diseases/*metabolism[MESH]|Nitric Oxide Synthase/*metabolism[MESH]|S-Nitrosothiols/chemistry/*metabolism[MESH]|Signal Transduction/*physiology[MESH] |
