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Do KT, Cho HW, Badrinath N, Park JW, Choi JY, Chung YH, Lee HK, Song KD, Cho BW. Molecular Characterization and Expression Analysis of Creatine Kinase Muscle (CK-M) Gene in Horse. Asian-Australas J Anim Sci 2015; 28:1680-5. [PMID: 26580434 PMCID: PMC4647075 DOI: 10.5713/ajas.15.0468] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/29/2015] [Revised: 06/11/2015] [Accepted: 07/10/2015] [Indexed: 11/27/2022]
Abstract
Since ancient days, domestic horses have been closely associated with human civilization. Today, horse racing is an important industry. Various genes involved in energy production and muscle contraction are differentially regulated during a race. Among them, creatine kinase (CK) is well known for its regulation of energy preservation in animal cells. CK is an iso-enzyme, encoded by different genes and expressed in skeletal muscle, heart, brain and leucocytes. We confirmed that the expression of CK-M significantly increased in the blood after a 30 minute exercise period, while no considerable change was observed in skeletal muscle. Analysis of various tissues showed an ubiquitous expression of the CK-M gene in the horse; CK-M mRNA expression was predominant in the skeletal muscle and the cardiac muscle compared to other tissues. An evolutionary study by synonymous and non-synonymous single nucleotide polymorphism ratio of CK-M gene revealed a positive selection that was conserved in the horse. More studies are warranted in order to develop the expression of CK-M gene as a biomarker in blood of thoroughbred horses.
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Affiliation(s)
- Kyong-Tak Do
- Department of Animal Science, College of Natural Resources and Life Sciences, Pusan National University, Miryang 627-702, Korea ; Department of Equine Sciences, Sorabol College, Gyeongju 780-711, Korea
| | - Hyun-Woo Cho
- Department of Animal Science, College of Natural Resources and Life Sciences, Pusan National University, Miryang 627-702, Korea
| | - Narayanasamy Badrinath
- Department of Animal Science, College of Natural Resources and Life Sciences, Pusan National University, Miryang 627-702, Korea
| | - Jeong-Woong Park
- Department of Animal Science, College of Natural Resources and Life Sciences, Pusan National University, Miryang 627-702, Korea
| | - Jae-Young Choi
- Department of Animal Science, College of Natural Resources and Life Sciences, Pusan National University, Miryang 627-702, Korea
| | - Young-Hwa Chung
- BK21+, Department of Cogno-Mechatronics Engineering, Pusan National University, Busan 609-735, Korea
| | - Hak-Kyo Lee
- Department of Animal Biotechnology, Chonbuk National University, Jeonju 561-756, Korea
| | - Ki-Duk Song
- Department of Animal Biotechnology, Chonbuk National University, Jeonju 561-756, Korea
| | - Byung-Wook Cho
- Department of Animal Science, College of Natural Resources and Life Sciences, Pusan National University, Miryang 627-702, Korea
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