An Anti-Tumor Nanoparticle, [Gd@C82(OH)22]n, Induces Macrophage Activation
Authors: Wang, Bingbing; Yang, De; Sun, Baoyun; Wei, Xiyin; Guo, Hua; Liu, Xiaoli; Ying, Guoguang; Niu, Ruifang; Zhang, Ning; Ma, Yongjie
Source: Journal of Nanoscience and Nanotechnology, Volume 11, Number 3, March 2011 , pp. 2321-2329(9)
Publisher: American Scientific Publishers
Abstract:[Gd@C82(OH)22]n, a fullerene-based nanoparticle, exhibits potent anti-tumor effects in mouse tumor-bearing models without detectable toxicity and the pathological studies revealed a massive infiltration of leukocytes in the residual tumors of [Gd@C82(OH)22]n-treated mice. We report here that [Gd@C82(OH)22]n promotes macrophages secreting pro-inflammatory cytokines IL-6 and TNF-α, enhances the expression of MHC-II and costimulatory molecules such as CD40 and CD54, increases endocytosis and cell adhesion. Furthermore, [Gd@C82(OH)22]n-treated macrophages became functionally activated as illustrated by their capacity to activate allogeneic T cells. Taken together, our results indicate that [Gd@C82(OH)22]n nanoparticle is a potent activator of macrophages, which may in part account for its potent anti-tumor effect.
Document Type: Research Article
Publication date: March 1, 2011
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