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TLR agonist rHP-NAP as an Adjuvant of Dendritic Cell-Based Vaccine to Enhance Anti-Melanoma Response | ||
Iranian Journal of Immunology | ||
مقاله 2، دوره 17، شماره 1، خرداد 2020، صفحه 14-25 اصل مقاله (879.51 K) | ||
نوع مقاله: Original Article | ||
شناسه دیجیتال (DOI): 10.22034/iji.2020.80291 | ||
نویسندگان | ||
Meiling Hou1؛ Xiaodong Wang1؛ Jike Lu1؛ Xun Guo1؛ Cong Ding1؛ Taotao Liang1؛ Zhenyu Ji2؛ Peng Xie3؛ Xin Liu* 1؛ Qiaozhen Kang* 1 | ||
1School of Life Sciences, Zhengzhou University, Zhengzhou, PR China | ||
2Henan Academy of Medical and Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, PR China | ||
3Zhengzhou Xinzhiyi Biotechnology Co., Zhengzhou, PR China | ||
چکیده | ||
Background: Melanoma is a common and malignant cutaneous tumor, which is responsible for a large proportion of skin cancer deaths. Dendritic cell (DC)-based vaccines have achieved positive results in the treatment of melanoma because of their ability to induce cytotoxic response to facilitate tumor elimination. Objective: To improve the efficacy of dendritic cell-based vaccines by the adjuvant activity of Helicobacter pylori neutrophil activating protein (HP-NAP), which is a virulence factor of Helicobacter pylori, has been proved as a TLR agonist with effective immunomodulatory activity. Methods: The recombinant HP-NAP (rHP-NAP) was expressed by using prokaryotic expression system. Dendritic cells (DCs) were cultured with granulocyte-macrophage colony-stimulating factor (GM-CSF) and IL-4. After treating with rHP-NAP, the maturation of DCs and dendritic cell-based vaccine were assayed by using flow cytometry and qRT-PCR. The activation and proliferation of T cells were measured by FCM, ELISA and MTT methods. The tumor specific cytotoxic response to resistant B16F10 was detected by using lactate dehydrogenase-release assay and qRT-PCR. Results: The recombinant HP-NAP (rHP-NAP), prepared from E. coli prokaryotic expression system, was able to significantly promote the maturation of dendritic cell-based vaccine loaded with tumor cell lysate (TCL) of B16F10 (DC-B16F10-TCL). Furthermore, it effectively induced the activation and proliferation of T cells and tumor specific cytotoxic response to resistant B16F10 melanoma tumor cells. Conclusion: These results suggested that rHP-NAP possesses the potential for use as an adjuvant of dendritic cell-based vaccine in anti-melanoma treatment. | ||
کلیدواژهها | ||
Cytotoxic Response؛ Dendritic Cell-Based Vaccine؛ Melanoma؛ rHP-NAP | ||
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