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Kong B, Owens C, Bottje W, Shakeri M, Choi J, Zhuang H, Bowker B. Proteomic analyses on chicken breast meat with white striping myopathy. Poult Sci 2024; 103:103682. [PMID: 38593545 PMCID: PMC11016796 DOI: 10.1016/j.psj.2024.103682] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Revised: 03/15/2024] [Accepted: 03/18/2024] [Indexed: 04/11/2024] Open
Abstract
White striping (WS) is an emerging myopathy that results in significant economic losses as high as $1 billion (combined with losses derived from other breast myopathies including woody breast and spaghetti meat) to the global poultry industry. White striping is detected as the occurrence of white lines on raw poultry meat. The exact etiologies for WS are still unclear. Proteomic analyses of co-expressed WS and woody breast phenotypes previously demonstrated dysfunctions in carbohydrate metabolism, protein synthesis, and calcium buffering capabilities in muscle cells. In this study, we conducted shotgun proteomics on chicken breast fillets exhibiting only WS that were collected at approximately 6 h postmortem. After determining WS severity, protein extractions were conducted from severe WS meat with no woody breast (WB) condition (n = 5) and normal non-affected (no WS) control meat (n = 5). Shotgun proteomics was conducted by Orbitrap Lumos, tandem mass tag (TMT) analysis. As results, 148 differentially abundant proteins (|fold change|>1.4; p-value < 0.05) were identified in the WS meats compared with controls. The significant canonical pathways included BAG2 signaling pathway, glycogen degradation II, isoleucine degradation I, aldosterone signaling in epithelial cells, and valine degradation I. The potential upstream regulators include LIPE, UCP1, ATP5IF1, and DMD. The results of this study provide additional insights into the cellular mechanisms on the WS myopathy and meat quality.
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Affiliation(s)
- Byungwhi Kong
- USDA, Agricultural Research Service, U.S. National Poultry Research Center, Quality & Safety Assessment Research Unit, Athens, GA, USA.
| | - Casey Owens
- Department of Poultry Science, Division of Agriculture, University of Arkansas System, Fayetteville, AR, USA
| | - Walter Bottje
- Department of Poultry Science, Division of Agriculture, University of Arkansas System, Fayetteville, AR, USA
| | - Majid Shakeri
- USDA, Agricultural Research Service, U.S. National Poultry Research Center, Quality & Safety Assessment Research Unit, Athens, GA, USA
| | - Janghan Choi
- USDA, Agricultural Research Service, U.S. National Poultry Research Center, Quality & Safety Assessment Research Unit, Athens, GA, USA
| | - Hong Zhuang
- USDA, Agricultural Research Service, U.S. National Poultry Research Center, Quality & Safety Assessment Research Unit, Athens, GA, USA
| | - Brian Bowker
- USDA, Agricultural Research Service, U.S. National Poultry Research Center, Quality & Safety Assessment Research Unit, Athens, GA, USA
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