Lab Invest: 乳突状肾细胞癌趋化素、IL-8和CXCL16可以促进单核细胞募集和分化成泡沫巨噬细胞

2017-08-06 AlexYang MedSci原创

乳突状肾细胞癌(pRCC)是肾细胞癌的第二大常见类型。唯一的有效治疗Prcc的方法为根治性外科切除术。如果疾病发生扩散,化疗或者放疗都将不在产生治疗效果,因此对Prcc更进一步的研究非常重要。从组织病理上来说,pRCC是通过乳突的生长模式,即泡沫细胞表型的巨噬细胞焦点聚集。在其他类型的癌症中,在癌症生长和进展时,肿瘤相关的巨噬细胞的清楚的角色已经报道。尽管泡沫状巨噬细胞的出现是pRCC肿瘤的一个组

乳突状肾细胞癌(pRCC)是肾细胞癌的第二大常见类型。唯一的有效治疗Prcc的方法为根治性外科切除术。如果疾病发生扩散,化疗或者放疗都将不在产生治疗效果,因此对Prcc更进一步的研究非常重要。从组织病理上来说,pRCC是通过乳突的生长模式,即泡沫细胞表型的巨噬细胞焦点聚集。在其他类型的癌症中,在癌症生长和进展时,肿瘤相关的巨噬细胞的清楚的角色已经报道。尽管泡沫状巨噬细胞的出现是pRCC肿瘤的一个组织病理学标记,而关于它们在pRCC生物学中的作用却所知甚少。

最近,有研究人员为了研究pRCC肿瘤和骨髓细胞的互作关系,从pRCC组织中建立了原代培养。研究发现,人类pRCC细胞可以分泌趋化因子IL-8、CXCL16和趋化素,并且这些因子可以吸引体外试验中的人类单核细胞。来自癌症基因组数据库的RNSseq数据确认了这些因子在pRCC组织中高表达。pRCC培养基的条件培养基诱导了人类单核细胞向M2巨噬细胞的转换。在扩展的培养基中,这些巨噬细胞变大且满载液体,即在pRCC组织发现的泡沫状细胞形态。最后,研究人员指出,这些结果第一次表明了pRCC原发性肿瘤细胞可以分泌吸引和促使单核细胞分化成具有泡沫细胞组织学特点的抗炎症肿瘤相关巨噬细胞的因子。

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    2018-01-08 wetgdt
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    2017-08-08 respect
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    2017-08-06 清风拂面

    谢谢分享,学习了

    0

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    2017-08-06 楠博One

    学习谢谢分享

    0

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之前的研究发现,改变的的平均血小板体积(MPV)在几种恶性肿瘤中存在。值得注意的是,MPV在肾细胞癌(RCC)中预后评估的价值还没有达成共识。最近,有研究人员调查了MPV值作为一个RCC预后因子的可能性。该回顾性的研究招募了在2009年1月到2009年12月的306名连续的RCC病人。研究人员对MPV和临床病理学特性的关系进行了分析,并利用卡普兰-梅尔分析方法和Cox回归评估了MPV的预后影响。研

Oncogene:PDZK-1可以通过抑制SHP-1的磷酸化抑制肾细胞癌的发生和发展

肾细胞癌(RCC)是最具有侵略性泌尿外科癌症之一,然而,RCC致癌作用的的机制到目前为止仍旧不清楚。最近,研究人员通过利用基因表达分析和功能聚类发现,包含PDZ结构域蛋白1(PDZK1)在人类透明细胞肾细胞癌(ccRCC)中表达下调,该现象在一些相互独立的公共ccRCC数据库中同样得到了鉴证。另外,通过在ccRCC细胞系中PDZK1的超表达和敲除,研究人员阐释了PDZK1可以抑制细胞增殖、细胞周期

JCO:Nivolumab联合Ipilimumab治疗转移性肾细胞癌

免疫检查点抑制剂联合治疗与单药治疗相比具有更强的抗肿瘤活性。Ⅰ期Checkmate 016研究主要评估Nivolumab联合Ipilimumab以及Nivolumab加一种酪氨酸激酶抑制剂治疗转移性肾细胞癌(mRCC)的有效性及安全性。JCO近期发表了一篇文章,报道了Nivolumab联合Ipilimumab组的安全性及有效性结果。

JCO:Nivolumab联合ipilimumab——转移性肾细胞癌患者的新福音?

如今越来越多的研究表明与单一疗法相比,联合免疫抑制剂的联合疗法表现出更强的抗肿瘤活性,如黑色素瘤的治疗。开放、平行对照、剂量递增、 I 期阶段的CheckMate研究评估了nivolumab加ipilimumab联合治疗、nivolumab加酪氨酸激酶抑制剂在转移性肾细胞癌中(mRCC)的安全性和疗效。nivolumab联合ipilimumab治疗的安全性和有效性如下文所示。