Biological Differences between Hanwoo longissi-mus dorsi and semimembranosus Muscles in Col-lagen Synthesis of Fibroblasts

• 발행기관: 한국축산식품학회
• 저자명: Sivakumar Allur Subramaniyan Inho Hwang
• 간행물 정보: 『Food Science of Animal Resources』Korean Journal for Food Science of Animal Resources 제37권 제3호, 392~401쪽, 전체 10쪽
• 주제분류: 농수해양 > 식품과학
• 파일형태: PDF
• 발행일자: 2017.06.30

영문 초록

Variations in physical toughness between muscles and animals are a function of growth rate and extend of collagen type I and III. The current study was designed to investigate the ability of growth rate, collagen concentration, collagen synthesizing and degrading genes on two dif-ferent fibroblast cells derived from Hanwoo m. longissimus dorsi (LD) and semimembrano-sus (SM) muscles. Fibroblast cell survival time was determined for understanding about the characteristics of proliferation rate between the two fibroblasts. We examined the collagen concentration and protein expression of collagen type I and III between the two fibroblasts. The mRNA expression of collagen synthesis and collagen degrading genes to elucidate the molecular mechanisms on toughness and tenderness through collagen production between the two fibroblast cells. From our results the growth rate, collagen content and protein expression of collagen type I and III were significantly higher in SM than LD muscle fibroblast. The mRNA expressions of collagen synthesized genes were increased whereas the collagen degrading genes were decreased in SM than LD muscle. Results from confocal microscopical investigation showed increased fluorescence of collagen type I and III appearing stronger in SM than LD muscle fibroblast. These results implied that the locomotion muscle had higher fibroblast growth rate, leads to produce more collagen, and cause tougher than positional mus-cle. This in vitro study mirrored that background toughness of various muscles in live animal is likely associated with fibroblast growth pattern, collagen synthesis and its gene expression.

키워드

muscle toughness fibroblast collagen caspase cytokines