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http://dx.doi.org/10.5851/kosfa.2008.28.5.651

Development of Polyclonal Antibodies to Abdominal and Subcutaneous Adipocytes for Fat-Reduced Hanwoo Beef Production  

Choi, Chang-Weon (National Institute of Animal Science, RDA)
Kim, Yu-Hyun (National Institute of Animal Science, RDA)
Kim, Sang-Jin (National Institute of Animal Science, RDA)
Song, Man-Kang (Department of Animal Science, Chungbuk National University)
Kwon, Eung-Gi (National Institute of Animal Science, RDA)
Oh, Young-Kyoon (National Institute of Animal Science, RDA)
Hong, Seong-Koo (National Institute of Animal Science, RDA)
Choi, Seong-Ho (Department of Animal Science, Chungbuk National University)
Baek, Kyung-Hoon (National Institute of Animal Science, RDA)
Publication Information
Food Science of Animal Resources / v.28, no.5, 2008 , pp. 651-659 More about this Journal
Abstract
This study aimed to develop polyclonal antibodies to regional inedible adipocytes of Korean native cattle (Hanwoo) and investigate cross-reactivity of the antibodies. Patterns in plasma membrane proteins (PMPs) from abdominal and subcutaneous adipocytes of Hanwoo isolated by collagenase digestion were investigated using SDS-PAGE. As antigens, abdominal and subcutaneous adipocyte PMPs of Hanwoo were injected to sheep 3 times at 3 wk intervals for passive immunization, and non-immunized serum and antisera were collected before and after the injections. Titers of the antisera obtained from sheep and their cross-reactivities with heart, kidney, liver, lung, muscle, and spleen of Hanwoo were determined by ELISA. Isolation and culture of abdominal and subcutaneous adipocytes of Hanwoo were performed for analysing LDH concentration. Based on the SDS-PAGE analysis, specific proteins of PMPs in abdominal and subcutaneous adipocytes appeared despite rather similar patterns between both adipocytes. At the level of 1:1,000 dilution, little antibody reactivity appeared in non-immunized serum whereas the antisera had relatively strong reactivity up to the level of 1:128,000 and 1:64,000 dilution. These findings may indicate that strong antibodies against adipocyte PMPs can be developed using an immunological approach. Extremely low reactivities of abdominal and subcutaneous adipocyte antisera were detected with PMPs of the organs. Both antisera strongly reacted with each adipocyte PMPs and showed statistically (p<0.01) higher cross-reactivities compared with non-immunized serum. In conclusion, these results may indicate that the present polyclonal antibodies against regional inedible adipocyte PMPs are well developed and have safety in cross-reactivities with body organs. Further studies on in vivo cross-reactivity and fat reduction of the antibodies against abdominal and subcutaneous adipocytes PMPs of Hanwoo should be required for inedible fat-reduced high quality beef production.
Keywords
Hanwoo; antibody; fat-reduced beef; abdominal; adipocyte;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
Times Cited By Web Of Science : 2  (Related Records In Web of Science)
Times Cited By SCOPUS : 1
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