Abstract
금목이의 자실체로부터 중성염용액, 열수 및 메탄올을 이용하여 조다당류를 추출하였다. 세포독성 실험결과, 각각의 조다당류는 <TEX>$2000\;{\mu}g/ml$</TEX>의 농도에서 마우스 대식세포 RAW 309 Cr.1와 육종암세포 Sarcoma 180에 대하여 세포독성은 나타나지 않았다. Sarcoma 180가 접종된 ICR mice에 각각의 조다당류를 주사하여 평균 수명 연장 효과를 조사한 결과 실험군은 수명이 대조군에 비해 각각 <TEX>$11.1{\sim}66.7%$</TEX> 연장되었다. 메탄올으로 추출한 조다당류를 <TEX>$200\;{\mu}g/ml$</TEX> 투여한 생쥐의 B 임파구 alkaline phosphatase의 활성은 대조군에 비해 약 1.16배 증가하는 것으로 나타났다. 열수 추출 조다당류를 투여한 생쥐의 복강의 총 세포 수는 대조군에 비하여 최고 1.42배 증가하였으며, 혈액 중 백혈구의 수도 대조군에 비하여 약 2.87배 증가하였다. 또한 면역과 관련된 장기인 간 비장 및 흉선의 무게는 대조군에 비하여 소폭 증가하였다. Tremella aurantialba, one of edible and medicinal mushrooms belonging to Tremellaceae of Basidiomycota, has been known to have outstanding curing effects on coughing, tracheitis and hypertension of humans and antitumor activity on the sarcoma 180 and Erhrlich carcinoma of mice. Neutral saline soluble (0.9% NaCl), hot water soluble and methanol soluble substances (hereinafter referred to Fr. NaCl, Fr. HW and Fr. MeOH, respectively) were extracted from fruiting body of the mushroom. In vitro cytotoxicity tests showed that all crude polysaccharides extracted from the fruiting body were not cytotoxic against cancer cell lines such as RAW 309 CR.1 and Sarcoma 180 at the concentration of <TEX>$2000\;{\mu}g/ml$</TEX>. Intraperitoneal injection with crude polysaccharides exhibited life prolongation effect of <TEX>$11.1{\sim}66.7%$</TEX> in mice inoculated with Sarcoma 180. Fr. MeOH improved the immunopotentiation activity of B lymphocyte by increasing the alkaline phosphatase activity by 1.16 folds at the concentration of <TEX>$200\;{\mu}g/ml$</TEX>. In case of Fr. HW, the numbers of peritoneal exudate cells and circulating leukocytes were increased by 1.42 and 2.87 folds, respectively.
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