Antitumour effect of abrin on transplanted tumours in mice.
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2002-01-25
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Abrin, a galactose specific lectin was purified using sepharose 4B affinity column from seeds of Abrus precatorius. It exhibited antitumour activity in mice when used at a sublethal dose of 7.5 micrograms/kg every alternate day for 10 days. Both intralesional and intraperiloneal (i.p.) administration of abrin was effective in reducing solid tumour mass development induced by Dalton's Lymphoma Ascites (DLA) and Ehrlich's Ascites Carcinoma (EAC) cells. DLA cell line was more sensitive to abrin than EAC. Abrin when injected i.p. increased the life span of ascites tumour bearing mice. Abrin when used simultaneously with tumour cells brought about maximum antitumour effect. On developed tumour masses, abrin administration brought about significant reduction in tumour volume, especially in DLA induced tumours. Prophylactic administration of abrin was found ineffective.
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Ramnath V, Kuttan G, Kuttan R. Antitumour effect of abrin on transplanted tumours in mice. Indian Journal of Physiology and Pharmacology. 2002 Jan; 46(1): 69-77