The role of adipokines in the pathogenesis and course of selected respiratory diseases.

Adipose tissue is also a secretory organ producing active substances called adipokines. Some of them (apelin, resistin, adiponectin, leptin, chemerin, or visfatin) may play a role in the pathogenesis and course of respiratory diseases, e.g. COPD, asthma, pulmonary hypertension, or lung cancer. There are limited and conflicting data on the role of adipokines in asthma. It has been confirmed, however, that visfatin and leptin can be markers of inflammation in COPD. Elevated concentrations of leptin and resistin play a pro-inflammatory role in the development of cancer cachexia. The role of adipokines has also been demonstrated in pulmonary hypertension, and the apelinadiponectin axis disruption may exacerbate pulmonary hypertension.