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Revista Cubana de Plantas Medicinales

versión On-line ISSN 1028-4796

Resumen

COLOM LOO, Yamila et al. Influence of the treatment with Cuban plant extracts on the Erlich ascitic carcinoma. Rev Cubana Plant Med [online]. 2012, vol.17, n.2, pp.115-124. ISSN 1028-4796.

Introduction: at present, scientists are resorting more frequently to nature in order to develop drugs against various illnesses such as cancer. The origin of natural products is diverse and their structure is very complex with the capacity of inhibiting through indirect effect the development of tumors by stimulating the defense mechanisms of the body. Objective: to evaluate the indirect antitumor action of plant extracts in Erlich ascitic tumor cells. Methods: a group of 50 NMRI-line mice was interperitoneally pretreated with plant extracts during 5 days. After 48 hours, Erlich ascitic tumor cells were transplanted into the mice. Another control group of mice was pretreated with 0.9 % physiological saline solution; at 48 hours they were also implanted the same tumor cells. The antitumor activity was determined by comparing the control group with the group of mice treated with extracts in terms of tumor implant rejection. The product was considered to be active if it caused 60 % tumor growth inhibition or more. Results: of the evaluated extracts, 5 obtained more than 60 percent of survival in animals at one of the tested doses, with no signs of tumor after observation during 30 days. It proved that these extracts were active. Conclusions: it was proved that these 5 extracts could be potential products in stimulating immune response, so they should be further studied in the future.

Palabras clave : indirect antitumor activity; cancer; plant extracts; mice; Erlich ascitic tumor.

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