Premium
Endurance training selectively increases high‐density lipoprotein‐bound sphingosine‐1‐phosphate in the plasma
Author(s) -
Książek M.,
Charmas M.,
Klusiewicz A.,
Zabielski P.,
Długołęcka B.,
Chabowski A.,
Baranowski M.
Publication year - 2018
Publication title -
scandinavian journal of medicine and science in sports
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.575
H-Index - 115
eISSN - 1600-0838
pISSN - 0905-7188
DOI - 10.1111/sms.12910
Subject(s) - sphingosine 1 phosphate , endurance training , sphingosine , medicine , endocrinology , high density lipoprotein , rowing , lipoprotein , blood plasma , platelet , sports medicine , chemistry , cholesterol , physical therapy , receptor , archaeology , history
Sphingosine‐1‐phosphate (S1P) is a bioactive lysosphingolipid that is found in relatively high concentration in human plasma. Erythrocytes, endothelial cells, and activated platelets are the main sources of circulating S1P. The majority of plasma S1P is transported bound to high‐density lipoprotein ( HDL ) and albumin. In recent years, HDL ‐bound S1P attracted much attention due to its cardioprotective and anti‐atherogenic properties. We have previously found that endurance‐trained athletes are characterized by higher plasma S1P concentration compared to untrained individuals. This finding prompted us to examine the effect of endurance training on S1P metabolism in blood. Thirteen healthy, untrained, male subjects completed an 8‐week training program on a rowing ergometer. Three days before the first, and 3 days after the last training session, blood samples were drawn from an antecubital vein. We found that total plasma S1P concentration was increased after the training. Further analysis of different plasma fractions showed that the training selectively elevated HDL ‐bound S1P. This effect was associated with activation of sphingosine kinase in erythrocytes and platelets and enhanced S1P release from red blood cells. We postulate that increase in HDL ‐bound S1P level is one of the mechanisms underlying beneficial effects of regular physical activity on cardiovascular diseases.