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Tehranolide Could Shift the Immune Response towards Th1 and Modulate the Intra-Tumor Infiltrated T Regulatory Cells | ||
Iranian Journal of Immunology | ||
مقاله 7، دوره 6، شماره 4، اسفند 2009، صفحه 216-224 اصل مقاله (297.51 K) | ||
نوع مقاله: Original Article | ||
نویسندگان | ||
Shokoofe Noori1؛ Mohammad Taghikhani1؛ Zuhair M. Hassan* 2؛ Abdolamir Allameh1؛ Ali Mostafaei3 | ||
1Department of Biochemistry | ||
2Immunology, Tarbiat Modares University, Tehran, Iran | ||
3Department of Immunology, Kermanshah University of Medical Sciences, Kermanshah, Iran | ||
چکیده | ||
Background: Artemisia diffusa contains a new type of sesquiterpene lactone with an endoperoxide group (Tehranolide). Objective: Due to the existing similarity between the structures of Tehranolide and Artemisinin, it was hypothesized that Tehranolide would have similar effects as Artemisinin. In this study, the immunotherapeutic effec-tiveness of Tehranolide was investigated by direct intra-tumoral injection. Methods: Tehranolide was purified from Artemisia diffusa, and its effect on the tumor volume was investigated. The splenocyte proliferation, shifting of cytokine profile, and the presence of naturally-occurring CD4+CD25+Foxp3+ Treg cells were assessed to describe the anti-tumor immune response. Results: Analysis of immune response showed that, intra-tumoral injection of Tehranolide decreased the rate of tumor growth compared to control group. Furthermore, the proliferative response of mice treated with Tehranolide was en-hanced. In comparison with the control group, production of both IL-4 and IFN-γ was in-duced (p<0.05). The results indicated a decrease in tumor CD4+CD25+Foxp3+ T lym-phocytes in the Tehranolide-treated group compared to the control group. Conclusion: Treatment of tumors with Tehranolide attenuated CD4+CD25+Foxp3+ Treg cell-mediated immune suppression and elicited a persistent anti-tumor immunity against can-cer. | ||
کلیدواژهها | ||
Tehranolide؛ T Regulatory Cell؛ IFN-γ؛ IL-4 | ||
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