PMID- 23682635 OWN - NLM STAT- MEDLINE DCOM- 20140425 LR - 20211203 IS - 1297-9716 (Electronic) IS - 0928-4249 (Print) IS - 0928-4249 (Linking) VI - 44 IP - 1 DP - 2013 May 17 TI - Salmonella enterica Typhimurium infection causes metabolic changes in chicken muscle involving AMPK, fatty acid and insulin/mTOR signaling. PG - 35 LID - 10.1186/1297-9716-44-35 [doi] AB - Salmonella enterica serovar Typhimurium (Salmonella Typhimurium) infection of chickens that are more than a few days old results in asymptomatic cecal colonization with persistent shedding of bacteria. We hypothesized that while the bacterium colonizes and persists locally in the cecum it has systemic effects, including changes to metabolic pathways of skeletal muscle, influencing the physiology of the avian host. Using species-specific peptide arrays to perform kinome analysis on metabolic signaling pathways in skeletal muscle of Salmonella Typhimurium infected chickens, we have observed key metabolic changes that affected fatty acid and glucose metabolism through the 5'-adenosine monophosphate-activated protein kinase (AMPK) and the insulin/mammalian target of rapamycin (mTOR) signaling pathway. Over a three week time course of infection, we observed changes in the phosphorylation state of the AMPK protein, and proteins up and down the pathway. In addition, changes to a large subset of the protein intermediates of the insulin/mTOR pathway in the skeletal muscle were altered by infection. These changes occur in pathways with direct effects on fatty acid and glucose metabolism. This is the first report of significant cellular metabolic changes occurring systemically in chicken due to a Salmonella infection. These results have implications not only for animal production and health but also for the understanding of how Salmonella infection in the intestine can have widespread, systemic effects on the metabolism of chickens without disease-like symptoms. FAU - Arsenault, Ryan J AU - Arsenault RJ AD - United States Department of Agriculture, Agricultural Research Service, SPARC, College Station, TX, 77845, USA. ryan.arsenault@usask.ca. FAU - Napper, Scott AU - Napper S FAU - Kogut, Michael H AU - Kogut MH LA - eng PT - Journal Article PT - Research Support, U.S. Gov't, Non-P.H.S. DEP - 20130517 PL - England TA - Vet Res JT - Veterinary research JID - 9309551 RN - 0 (Antibodies, Bacterial) RN - 0 (Fatty Acids) RN - 0 (Insulin) RN - EC 2.7.11.1 (TOR Serine-Threonine Kinases) RN - EC 2.7.11.31 (AMP-Activated Protein Kinases) SB - IM MH - AMP-Activated Protein Kinases/metabolism MH - Animals MH - Antibodies, Bacterial/*metabolism MH - *Chickens MH - Fatty Acids/metabolism MH - Insulin/metabolism MH - Muscle, Skeletal/*metabolism/microbiology MH - Phosphorylation MH - Poultry Diseases/*microbiology MH - Protein Array Analysis/veterinary MH - Salmonella Infections, Animal/*microbiology MH - Salmonella typhimurium/immunology/*physiology MH - Signal Transduction MH - TOR Serine-Threonine Kinases/metabolism PMC - PMC3663815 EDAT- 2013/05/21 06:00 MHDA- 2014/04/26 06:00 PMCR- 2013/01/01 CRDT- 2013/05/21 06:00 PHST- 2013/02/04 00:00 [received] PHST- 2013/04/19 00:00 [accepted] PHST- 2013/05/21 06:00 [entrez] PHST- 2013/05/21 06:00 [pubmed] PHST- 2014/04/26 06:00 [medline] PHST- 2013/01/01 00:00 [pmc-release] AID - 1297-9716-44-35 [pii] AID - 10.1186/1297-9716-44-35 [doi] PST - epublish SO - Vet Res. 2013 May 17;44(1):35. doi: 10.1186/1297-9716-44-35.