کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5832317 | 1122593 | 2015 | 8 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Antitumor and immunomodulatory effects of recombinant fusion protein rMBP-NAP through TLR-2 dependent mechanism in tumor bearing mice Antitumor and immunomodulatory effects of recombinant fusion protein rMBP-NAP through TLR-2 dependent mechanism in tumor bearing mice](/preview/png/5832317.png)
- rMBP-NAP can activate the systemic immune response, and enhance the activities of activated Th1 cells.
- rMBP-NAP can elicit a significant antitumor effect by inducing Th1 immune response.
- Antitumor and immunomodulatory activities of rMBP-NAP depend on a Toll like receptor 2-triggered pathway.
The pro-inflammatory and immunomodulatory properties of Helicobacter pylori neutrophil activating protein (Hp-NAP) not only make it to play an important role in disease pathogenesis but also make it to be a potential candidate for therapeutic applications, including vaccine and drug development. Our previous work demonstrated that the recombinant Hp-NAP fused with the maltose binding protein of Escherichia coli (rMBP-NAP) play an important role in regulating the differentiation of Th1 cells. In this study, we investigated the ability of rMBP-NAP to induce antitumor immunity using two murine models of hepatoma H22 and sarcoma S180. Subcutaneous administration of mice with rMBP-NAP resulted in an about 40%-50% decrease of tumor growth compared with that of the control mice. Splenocytes from the tumor-bearing mice treated with rMBP-NAP showed a significant accumulation of CD4+ IFN-γ-secreting cells, which is a cytokine profile of Th1 cells. Furthermore, intravenous injection of T2.5, toll like receptor (TLR) 2 blocking antibody, significantly recede the antitumor effect of rMBP-NAP and the production of IFN-γ induced by rMBP-NAP. Our findings indicate that potentiality of rMBP-NAP to be a candidate for the development of immunomodulatory antitumoral drugs.
Journal: International Immunopharmacology - Volume 29, Issue 2, December 2015, Pages 876-883