Abstract

본 연구는 흰쥐 지방세포 원형질막 단백질에 대한 항혈청의 면역주사가 흰쥐 체지방 함량에 미치는 영향을 구명하기 위하여 실시되었다. 20마리의 Sprague-Dawley 흰쥐를 대조구와 항체처리구(10두/구)로 완전 임의배치하였고, 대조구에는 생리식염수를, 항체처리구에는 면양으로부터 생산해 낸 흰쥐 지방세포 원형질막 단백질에 대한 다클론항체를 면역주사하였다. 항체의 수동면역(복강주사)은 실험동물의 피하지방(21.9%)과 신지방 + 장간막지방 + 정소외막지방조직(36.0%)을 유의적으로(각각 P=0.0054, P=0.0019) 감소시켰다. 항체처리구의 체중은 항체처리기간동안 감소하였지만, 처리 후 1주를 경과하면서 다시 정상체중으로 회복되었다. 혈중 glucose 농도와 근육내 조지방 및 조단백질의 수준은 항체의 처리로 인한 유의적인 차이를 나타내지 않았다. 이러한 결과들은 면양에서 생산한 지방세포 원형질막 단백질에 대한 다클론 항체들이 육생산동물의 체지방 함량을 조절할 수 있다는 가능성을 시사해 주고 있다. 앞으로 본 연구결과의 실용화를 위하여 실용적인 측면에서의 연구가 필요할 것으로 생각된다. The current study was conducted to investigate the effects of administration of antiserum against adipocyte plasma membrane(APM) proteins into rats on body fat mass. Twenty(20) male adult Sprague-Dawley rats were randomly allocated into either control or antiserum treatment group(10 rats/treatment) and immunized with physiological saline(control group) and polyclonal antiserum (treatment group), respectively, raised in sheep against rat APM proteins(5times, 2day interval). All animals were killed 4weeks after last injection. Intraperitoneal(i.p.) administration of antiserum significantly(P=0.0054 and P=0.0019, respectively) reduced subcutaneous(21.9%) and perirenal + mesentric + epididymic(36.0%) adipose tissue mass in rats of treatment group. Although body weights of antiserum treated rats were decreased during immunization, the rats recovered their body weight after 1 week of treatment. There were no significant changes in the level of blood glucose and in the contents of muscle protein and fat in antiserum treated animals. Current results indicate that polyclonal antibodies against APM proteins could be used to manipulate body fat mass in meat animals as well as laboratory animals. Further studies, however, are necessary for the practical applications of the current results.

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