Korean Journal of Food Science and Technology (한국식품과학회지)

Korean Society of Food Science and Technology (한국식품과학회)
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Studies on the Immune Cell Activations of Bovine Colostral Whey Fractions

홀스타인 초유 whey fraction의 면역세포 활성화에 관한 연구

  • Yang, Hee-Jin (Department of Food and Life Science, Sungkyunkwan University) ;
  • Lee, Seung-Hwan (Department of Food and Life Science, Sungkyunkwan University) ;
  • Hwangbo, Sik (Department of Food and Life Science, Sungkyunkwan University) ;
  • Yang, Dong-Hoon (Union Trade Co.) ;
  • Lee, Soo-Won (Department of Food and Life Science, Sungkyunkwan University)
  • 양희진 (성균관대학교 식품생명자원학과) ;
  • 이승환 (성균관대학교 식품생명자원학과) ;
  • 황보식 (성균관대학교 식품생명자원학과) ;
  • 양동훈 (유니온통상) ;
  • 이수원 (성균관대학교 식품생명자원학과)
  • Published : 2002.08.01
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Abstract

The purpose of this study is to observe the effect of bovine colostral whey fractions on proliferation of Th1 cells and to verify the effect of whey fractions that are directly related to growth of Th1 cells on macrophages activation. Whey was fractionated into 3 fractions depending on by ultrafiltration (fraction (Fr.) I; molecular weight (Mw.) 10 kDa and more, Fr. II; Mw. $1\;kDa{\sim}10\;kDa$, Fr. III; Mw. less than 1 kDa) and examined by SDS-polyacrylamide gel electrophoresis. Fr. II stimulated and proliferated Th1 cells most at 1 mg/mL concentration and the percentage of cell proliferation was 67.1%. The secretive induction of tumor necrosis $factor-{\alpha}$ $(TNF-{\alpha})$ by whey, Fr. II, protein fraction (Fr. P) and oligosaccharide fraction (Fr. O) after fractionating Fr. II into Fr. P and Fr. O on the basis of Th1 cells growth was that Fr. O had more 80% secretive induction of $TNF-{\alpha}$ than that of $1\;{\mu}g/mL$ lipopolysaccharide that was positive control. So confirmed that Fr. O induced $TNF-{\alpha}$ secretion by activating macrophages.

본 연구에서는 분만 후 5일 이내에 분비되는 젖소 초유의 whey 및 whey 분획이 Th1 cell의 증식에 어떤 영향을 미치는지, 그리고 Th1 cell 증식에 직접적으로 관여하는 whey 분획이 macrophage의 $TNF-{\alpha}$ 분비에 미치는 영향을 조사하였다. 초유 whey를 ultrafiltration으로 분자량별로 분획한 결과, 단백질 성분의 회수율은 Fr. I, II, III가 각각 72%, 17.7%, 10.2%였으며, 당 성분의 회수율은 Fr. I, II, III가 각각 22.1%, 7.4%, 70.1%였다. Fr. II를 재분획한 Fr. P의 단백질 회수율과 Fr. O의 당 회수율은 각각 86.9%, 88.8%였다. 각각의 whey 분획의 농도 대비 Th1 cell 증식 효과를 검증한 결과, 1 mg/mL 농도에서 Fr. II가 Th1 cell을 가장 많이 자극시켰으며, 세포증식율은 67.1%였으나, Fr. II의 단백질 및 올리고당 분획의 세포증식효과는 없는 것으로 나타났다. Whey의 각각의 분획을 이용하여 $TNF-{\alpha}$ 분비 능력을 조사한 결과, Fr. O가 양성대조구로 사용한 LPS보다 약 80% 이상의 $TNF-{\alpha}$분비 유도 능력이 있는 것으로 나타났다.

Keywords

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