Physical activity-associated gene expression signature in nonhuman primate motor cortex

Amanda C. Mitchell, Rehana K. Leak, Krassimira Garbett, Michael J. Zigmond, Judy L. Cameron, Károly Mirnics

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

It has been established that weight gain and weight loss are heavily influenced by activity level. In this study, we hypothesized that the motor cortex exhibits a distinct physical activity-associated gene expression profile, which may underlie changes in weight associated with movement. Using DNA microarrays we profiled gene expression in the motor cortex of a group of 14 female rhesus monkeys (Macaca mulatta) with a wide range of stable physical activity levels. We found that neuronal growth factor signaling and nutrient sensing transcripts in the brain were highly correlated with physical activity. A follow-up of AKT3 expression changes (a gene at the apex of neuronal survival and nutrient sensing) revealed increased protein levels of total AKT, phosphorylated AKT, and forkhead box O3 (FOXO3), one of AKT's main downstream effectors. In addition, we successfully validated three other genes via quantitative polymerase chain reaction (qPCR) (cereblon (CRBN), origin recognition complex subunit 4-like, and pyruvate dehydrogenase 4 (PDK4)). We conclude that these genes are important in the physical activity-associated pathway in the motor cortex, and may be critical for physical activity-associated changes in body weight and neuroprotection.

Original languageEnglish (US)
Pages (from-to)692-698
Number of pages7
JournalObesity
Volume20
Issue number3
DOIs
StatePublished - Mar 1 2012

Fingerprint

Motor Cortex
Transcriptome
Primates
Macaca mulatta
Origin Recognition Complex
Genes
Food
Body Weight Changes
Oligonucleotide Array Sequence Analysis
Pyruvic Acid
Weight Gain
Weight Loss
Intercellular Signaling Peptides and Proteins
Oxidoreductases
Gene Expression
Weights and Measures
Polymerase Chain Reaction
Brain
Proteins

ASJC Scopus subject areas

  • Medicine (miscellaneous)
  • Endocrinology, Diabetes and Metabolism
  • Endocrinology
  • Nutrition and Dietetics

Cite this

Mitchell, A. C., Leak, R. K., Garbett, K., Zigmond, M. J., Cameron, J. L., & Mirnics, K. (2012). Physical activity-associated gene expression signature in nonhuman primate motor cortex. Obesity, 20(3), 692-698. https://doi.org/10.1038/oby.2011.328

Physical activity-associated gene expression signature in nonhuman primate motor cortex. / Mitchell, Amanda C.; Leak, Rehana K.; Garbett, Krassimira; Zigmond, Michael J.; Cameron, Judy L.; Mirnics, Károly.

In: Obesity, Vol. 20, No. 3, 01.03.2012, p. 692-698.

Research output: Contribution to journalArticle

Mitchell, AC, Leak, RK, Garbett, K, Zigmond, MJ, Cameron, JL & Mirnics, K 2012, 'Physical activity-associated gene expression signature in nonhuman primate motor cortex', Obesity, vol. 20, no. 3, pp. 692-698. https://doi.org/10.1038/oby.2011.328
Mitchell, Amanda C. ; Leak, Rehana K. ; Garbett, Krassimira ; Zigmond, Michael J. ; Cameron, Judy L. ; Mirnics, Károly. / Physical activity-associated gene expression signature in nonhuman primate motor cortex. In: Obesity. 2012 ; Vol. 20, No. 3. pp. 692-698.
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