Journal
BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS
Volume 496, Issue 2, Pages 746-752Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.bbrc.2018.01.092
Keywords
Cancer; Skeletal muscle; Mitochondria; Oxygen consumption; Gene expression; 1 alpha,25-dihydroxyvitamin D-3
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Funding
- National Institutes of Health [1R01DK107870-01A1, DK066013, HL126451]
- Fred and A Katherine B. Andersen Foundation
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Cancer cachexia is associated with muscle weakness and atrophy. We investigated whether 1 alpha,25-dihydroxyvitamin D-3 (1 alpha,25(OH)(2)D-3), which has previously been shown to increase skeletal myoblast oxygen consumption rate, could reverse the deleterious effects of tumor cell conditioned medium on myoblast function. Conditioned medium from Lewis lung carcinoma (LLC1) cells inhibits oxygen consumption, increases mitochondrial fragmentation, inhibits pyruvate dehydrogenase activity, and enhances proteasomal activity in human skeletal muscle myoblasts. 1 alpha,25(OH)(2)D-3 reverses the tumor cell mediated changes in mitochondrial oxygen consumption and proteasomal activity, without changing pyruvate dehydrogenase activity. 1 alpha,25(OH)(2)D-3 might be useful in treatment of weakness seen in association with CC. (C) 2018 The Author(s). Published by Elsevier Inc.
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