title: Protective effect of centella triterpene saponins against cyclophosphamide-induced immune and hepatic system dysfunction in rats: its possible mechanisms of action.
abstract: This study was designed to investigate the protective effects of the centella triterpene saponins (EXT) on cyclophosphamide (CYP)-induced hepatotoxicity and immunosuppression in rats. The phytochemical profile of EXT was analyzed for centella saponins by using high-performance liquid chromatographic (HPLC). Therapeutic efficacy of EXT (250 mg/kg/day p.o) on hematological profile of blood, liver function markers, and cytokine profiles in CYP (10 mg/kg/day p.o)-treated rats. In addition, weights of immune organs (spleen and thymus) and histopathological changes in the liver, intestine, and spleen were also evaluated. The active principles in EXT were identified as madecassoside, asiaticoside, and asiatic acid by HPLC analysis. Upon administration of EXT, enhanced levels of glutamate pyruvate transaminase, alkaline phosphatase, and lipid peroxidation were found reduced while the levels of reduced glutathione and hematological parameters and relative weights of immune organs were restored to normal in CYP-treated rats. The hepatic mRNA level of TNF-α, which was increased during CYP administration, was significantly decreased by the EXT treatment. The decreased levels of mRNA expression of other cytokines like IFN-γ, IL-2, GM-CSF, after CYP treatment, were also found elevated upon administration of the EXT. Histopathological examination of the intestine, liver, and spleen indicated that the extract could attenuate the CYP-induced hepatic and immune organ damage. These results indicated that EXT modulated the immune and hepatic system function of rats against CYP-induced immunosuppression and hepatotoxicity by restoring the cytokine production, antioxidant system, and multiorgan injury. Thus, triterpene saponins may provide protective and/or therapeutic alternative against the immune-mediated liver diseases.
authors.affiliation: Department of Biotechnology, Sri Venkateswara University, Tirupati, Andhra Pradesh, India.
authors.forename: Pragathi
authors.initials: P
authors.lastname: Duggina
authors.forename: Chandra Mouli
authors.initials: CM
authors.lastname: Kalla
authors.forename: Seshadri Reddy
authors.initials: SR
authors.lastname: Varikasuvu
authors.forename: Suman
authors.initials: S
authors.lastname: Bukke
authors.forename: Vijaya
authors.initials: V
authors.lastname: Tartte
mesh_terms: D000469:Alkaline Phosphatase / Q000378:metabolism; D000818:Animals; D018906:Antineoplastic Agents, Alkylating / Q000633:toxicity*; D028041:Centella / Q000737:chemistry; D003520:Cyclophosphamide / Q000633:toxicity*; D019610:Cytoprotection; D004353:Drug Evaluation, Preclinical; D004906:Erythrocyte Count; D015870:Gene Expression / Q000187:drug effects / Q000276:immunology; D016178:Granulocyte-Macrophage Colony-Stimulating Factor / Q000235:genetics / Q000378:metabolism; D007371:Interferon-gamma / Q000235:genetics / Q000378:metabolism; D007376:Interleukin-2 / Q000235:genetics / Q000378:metabolism; D007422:Intestines / Q000187:drug effects / Q000473:pathology; D007958:Leukocyte Count; D015227:Lipid Peroxidation; D008099:Liver / Q000187:drug effects* / Q000473:pathology; D008297:Male; D009929:Organ Size / Q000187:drug effects; D010936:Plant Extracts / Q000494:pharmacology*; D010976:Platelet Count; D017208:Rats, Wistar; D012503:Saponins / Q000494:pharmacology*; D013154:Spleen / Q000187:drug effects / Q000473:pathology; D014315:Triterpenes / Q000494:pharmacology*; D014409:Tumor Necrosis Factor-alpha / Q000235:genetics / Q000378:metabolism
chemical_list: D018906:Antineoplastic Agents, Alkylating; D007376:Interleukin-2; D010936:Plant Extracts; D012503:Saponins; D014315:Triterpenes; D014409:Tumor Necrosis Factor-alpha; D007371:Interferon-gamma; D016178:Granulocyte-Macrophage Colony-Stimulating Factor; D003520:Cyclophosphamide; D000469:Alkaline Phosphatase