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首页> 外文期刊>Cancer science. >Corosolic acid inhibits glioblastoma cell proliferation by suppressing the activation of signal transducer and activator of transcription‐3 and nuclear factor‐kappa B in tumor cells and tumor‐associated macrophages
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Corosolic acid inhibits glioblastoma cell proliferation by suppressing the activation of signal transducer and activator of transcription‐3 and nuclear factor‐kappa B in tumor cells and tumor‐associated macrophages

机译:熊果酸通过抑制肿瘤细胞和肿瘤相关巨噬细胞中信号转导子和转录因子3和核因子κB的激活而抑制胶质母细胞瘤细胞增殖。

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摘要

AbstractTumor-associated macrophages (TAM) of M2 phenotype promote tumor proliferation and are associated with a poor prognosis in patients with glioblastoma. We screened the natural compounds possessing an inhibitory effect on M2 polarization in human monocyte-derived macrophages. Among 130 purified natural compounds examined, corosolic acid significantly inhibited the expression of CD163, one of the phenotype markers of M2 macrophages, and also suppressed the secretion of IL-10, one of the anti-inflammatory cytokines preferentially produced by M2 macrophages, thus suggesting that corosolic acid suppresses M2 polarization of macrophages. Furthermore, corosolic acid inhibited the proliferation of glioblastoma cells, U373 and T98G, and the activation of signal transducer and activator of transcription-3 (STAT3) and nuclear factor-kappa B (NF-κB) in both human macrophages and glioblastoma cells. These results indicate that corosolic acid suppresses the M2 polarization of macrophages and tumor cell proliferation by inhibiting both STAT3 and NF-κB activation. Therefore, corosolic acid might be a potential new tool for tumor prevention and therapy. (Cancer Sci 2011; 102: 206–211)
机译:摘要M2表型的肿瘤相关巨噬细胞(TAM)促进肿瘤增殖,并与胶质母细胞瘤患者的预后不良相关。我们筛选了天然化合物对人类单核细胞衍生的巨噬细胞中的M2极化具有抑制作用。在检查的130种纯化的天然化合物中,熊果酸显着抑制了CD163的表达,CD163是M2巨噬细胞的表型标志之一,并且还抑制了IL-10的分泌,IL-10是M2巨噬细胞优先产生的一种抗炎细胞因子,因此表明椰油酸抑制巨噬细胞的M2极化。此外,在人巨噬细胞和胶质母细胞瘤细胞中,熊果酸均抑制了胶质母细胞瘤细胞,U373和T98G的增殖以及信号转导和转录激活因子3(STAT3)和核因子-κB(NF-κB)的激活。这些结果表明,熊果酸通过抑制STAT3和NF-κB的活化来抑制巨噬细胞的M2极化和肿瘤细胞增殖。因此,椰油酸可能是预防和治疗肿瘤的潜在新工具。 (Cancer Sci 2011; 102:206–211)

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