Abstract:
ETHNOPHARMACOLOGICAL RELEVANCE:In Brazil, latex of Himatanthus drasticus is used to treat inflammation, wound healing and cancer. The present study evaluated the antitumoral potential of H. drasticus latex (HdCL) in Sarcoma 180-bearing mice (S180). MATERIALS AND METHODS:HdCL was obtained in Crato-CE, Brazil. Qualitative phytochemicals assays, nuclear magnetic resonance (NMR) and microbiological analyzes were performed. Swiss mice were divided into six groups, according to tumor forms: 1) ascitic model, GI (Control; 0.9% saline), GII (S180asc) and GIII (S180asc/HdCL/14 days); 2) solid model, GIV (Control; 0.9% saline), GV (S180sol) and GVI (S180sol/HdCL/10 days). HdCL and 0.9% saline were administered at 0.2 mL, SID, by gavage, for 10 or 14 days. For ascitic model, 0.5 mL of S180 suspension (4×106 cells/mL) was inoculated intraperitoneally and for solid model, cells were inoculated subcutaneously (25 µL) on the right hind paw of mice. Blood samples were collected for hematological and oxidative stress evaluation. Thickness, volume and weight of paws were measured in solid model. After euthanasia, spleen, liver and kidney were collected in order to assess the relative organ weight. Tissue fragments of paws and popliteal lymph nodes (PLN) were analyzed by H&E and CD4+, CD8+, HSP-60+ and Foxp3+ immunohistochemistry. RESULTS:HdCL presented milky aspect and pinkish supernatant. Phenols, flavonols, flavanones, free steroids and cinnamoyl derivatives of lupeol, α-amyrin and β-amyrin were detected at the phytochemistry analysis. HdCL did not alter the relative weight of organs, hematological parameters and volume of ascitic fluid recovered. In solid model, HdCL reduced (P < 0.05) paw volume, but did not altered thickness, paw weight and histological parameters. S180sol induced necrosis, metastasis and destruction of bone, cartilage and muscles. Bleeding, vessel congestion and oncocytes were observed in PLN. In paw, HdCL did not alter FoxP3+ and HSP-60+ expressions but reduced the CD4+ and CD8+ expressions, while at PLN, HdCL reduced the expressions of all markers. HdCL decreased (P < 0.05) serum levels of malondialdehyde in ascitic model. CONCLUSIONS:Treatment with HdCL reduced oxidative damage and modulated the expressions of CD4+, CD8+, FoxP3+and HSP-60+ in S180 solid tumor model, which can be associated to the presence of triterpenes, such as α-amyrin, β-amyrin and lupeol cinnamate. Present data emphasizes the importance of immune system in cancer and highlights the evaluation of the pharmacological properties of plants used by population as phytoterapics.
journal_name
J Ethnopharmacoljournal_title
Journal of ethnopharmacologyauthors
Santos GJL,Oliveira ES,Pinheiro ADN,da Costa PM,de Freitas JCC,de Araújo Santos FG,Maia FMM,de Morais SM,Nunes-Pinheiro DCSdoi
10.1016/j.jep.2017.09.043subject
Has Abstractpub_date
2018-06-28 00:00:00pages
159-168eissn
0378-8741issn
1872-7573pii
S0378-8741(16)32164-Xjournal_volume
220pub_type
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journal_title:Journal of ethnopharmacology
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journal_title:Journal of ethnopharmacology
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journal_title:Journal of ethnopharmacology
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journal_title:Journal of ethnopharmacology
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journal_title:Journal of ethnopharmacology
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journal_title:Journal of ethnopharmacology
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journal_title:Journal of ethnopharmacology
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journal_title:Journal of ethnopharmacology
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journal_title:Journal of ethnopharmacology
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journal_title:Journal of ethnopharmacology
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journal_title:Journal of ethnopharmacology
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journal_title:Journal of ethnopharmacology
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journal_title:Journal of ethnopharmacology
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journal_title:Journal of ethnopharmacology
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journal_title:Journal of ethnopharmacology
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abstract::The feeding of a fish extract, prepared by extracting whole fish with 80% ethanol, prevented abdominal, thoracic aorta and coronary atheroma in cholesterol-fed rabbits. Daily fish extract feeding reduced serum cholesterol and LDL-cholesterol levels by 41.8 and 38.0%, respectively. In addition, triglyceride levels were...
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