You are here

REDD1 Induction Regulates the Skeletal Muscle Gene Expression Signature following Acute 2 Aerobic Exercise

Title: REDD1 Induction Regulates the Skeletal Muscle Gene Expression Signature following Acute 2 Aerobic Exercise.
17 views
0 downloads
Name(s): Gordon, Bradley S., author
Steiner, Jennifer L., author
Rossetti, Michael L., author
Qiao, Shuxi, author
Ellisen, Leif W., author
Govindarajan, Subramaniam S., author
Eroshkin, Alexey M., author
Williamson, David L., author
Coen, Paul M., author
Type of Resource: text
Genre: Text
Journal Article
Date Issued: 2017-12-01
Physical Form: computer
online resource
Extent: 1 online resource
Language(s): English
Abstract/Description: The metabolic stress placed on skeletal muscle by aerobic exercise promotes acute and long-term health benefits in part through changes in gene expression. However, the transducers that mediate altered gene expression signatures have not been completely elucidated. Regulated in Development and DNA Damage 1 (REDD1) is a stress-induced protein whose expression is transiently increased in skeletal muscle following acute aerobic exercise. However, the role of this induction remains unclear. Because REDD1 altered gene expression in other model systems, we sought to determine whether REDD1 induction following acute exercise altered the gene expression signature in muscle. To do this, wild type and REDD1 null mice were randomized to remain sedentary or undergo a bout of acute treadmill exercise. Exercised mice recovered for 1, 3, or 6 hr prior to sacrifice. Acute exercise induced a transient increase in REDD1 protein expression within the plantaris only at 1 hr post exercise, and the induction occurred in both cytosolic and nuclear fractions. At this time point, global changes in gene expression were surveyed using microarray. REDD1 induction was required for the exercise induced change in expression of 24 genes. Validation by RT-PCR confirmed that the exercise-mediated changes in genes related to exercise capacity, muscle protein metabolism, neuromuscular junction remodeling, and Metformin action, were negated in REDD1 null mice. Lastly, the exercise-mediated induction of REDD1 was partially dependent upon glucocorticoid receptor activation. In all, these data show that REDD1 induction regulates the exercise mediated change in a distinct set of genes within skeletal muscle.
Identifier: FSU_libsubv1_scholarship_submission_1508863251_376eb1ac (IID), 10.1152/ajpendo.00120.2017 (DOI)
Keywords: Muscle fatigue, Protein metabolism, Neuromuscular junction
Publication Note: Published in The American Journal of Physiology- Endocrinology and Metabolism by the American Psychological Society. doi: 10.1152/ajpendo.00120.2017.
Persistent Link to This Record: http://purl.flvc.org/fsu/fd/FSU_libsubv1_scholarship_submission_1508863251_376eb1ac
Owner Institution: FSU
Is Part Of: The American Journal of Physiology- Endocrinology and Metabolism.
Issue: iss. 6, vol. 313

Choose the citation style.
Gordon, B. S., Steiner, J. L., Rossetti, M. L., Qiao, S., Ellisen, L. W., Govindarajan, S. S., … Coen, P. M. (2017). REDD1 Induction Regulates the Skeletal Muscle Gene Expression Signature following Acute 2 Aerobic Exercise. The American Journal Of Physiology- Endocrinology And Metabolism. Retrieved from http://purl.flvc.org/fsu/fd/FSU_libsubv1_scholarship_submission_1508863251_376eb1ac