Pathology:维生素A或可有效改善胰腺癌的化疗效果

2016-05-24 MedSci MedSci原创

在英国,每年约有8800人被诊断出胰腺癌。胰腺癌是美国最为罪名的癌症,存活率不足3%。单纯化疗和放疗往往无法治愈,手术切除则是最佳的治疗方法,大部分患者在癌细胞已发生转移时才确诊。因此,亟需一种不同的不同的治疗方法来更有效地治疗胰腺癌。原始出处:Vitamin A may help improve pancreatic cancer chemotherapy.AAAS and EurekAlert

在英国,每年约有8800人被诊断出胰腺癌。胰腺癌是美国罪名最大的癌症,存活率不足3%。单纯化疗和放疗往往无法治愈,手术切除则是最佳的治疗方法,大部分患者在癌细胞已发生转移时才确诊。因此,亟需一种不同的不同的治疗方法来更有效地治疗胰腺癌。


癌细胞通常被间质细胞保卫,间质细胞占胰腺癌组织的80%以上。这些相对正常的组织细胞可与癌细胞沟通,在肿瘤进展的过程中发挥着重要作用,并能为治疗提供新的靶点。

该研究中,来自伦敦玛丽皇后学院癌症研究所的研究人员在细胞和小鼠实验研究中测试了一种新的方法同时针对基质细胞和癌细胞。通过使用“吉西他滨”的化疗药物靶向癌细胞,并辅以维生素A靶向基质细胞,该联合治疗方法可减少癌细胞的增殖并降低其侵袭性。

“我们首次使用联合维生素A的化疗方法来治疗胰腺癌。研究的结果很有前景,我们目前正在进行临床试验,”首席研究员 Hemant Kocher教授说道,“胰腺癌难以通过化疗来有效治疗,而维生素A靶向癌组织并可使得化疗更为有效,杀死癌细胞并使癌组织缩小,因此该研究发现是很重要的。这或可适用于其他癌症的治疗,因为如果我们将癌症看为一个整体,包括癌组织周围正常的组织,那么我们或许可以开发新的更好的治疗方法。”

靶向基质细胞和癌细胞块使得癌细胞变得侵袭性更强的多个细胞信号转导通路被阻断。这意味着这些癌细胞将不能像其他癌细胞一样可有效地进行沟通,也不能像其他癌细胞一样可快速生长。

该治疗方法目前正在临床试验之中——STARPAC,研究对象也正在招募之中。研究人员希望通过此试验可建立一种新的安全的联合2种化疗药物和机制靶向剂的治疗方法。

玛丽皇后学院的博士生Elisabete Carapuça说道,“试验的大部分工作是我博士项目的部分完成的,很高兴我们的现在的工作正作为临床试验而进行。希望我的方法最终有益于胰腺癌的治疗。”

应该注意的是,该治疗方法正处于人体临床试验中其结果并未可知,因此并不推荐患者使用维生素补充剂。

原始出处:

Vitamin A may help improve pancreatic cancer chemotherapy.AAAS and EurekAlert! 24-MAY-2016.

Elisabete F. Carapuça, Emilios Gemenetzidis, et al., Anti-stromal treatment together with chemotherapy targets multiple signalling pathways in pancreatic adenocarcinoma. The Journal of Pathology. DOI: 10.1002/path.4727

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    2016-09-30 1e10c84am36(暂无匿称)

    拜读,好文

    0

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    2016-06-21 yb6560
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    2016-06-23 1df01bccm39(暂无匿称)

    只能作为辅助用药,提高化疗药物的效果么

    0

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    2016-05-27 jetleo

    该治疗方法正处于人体临床试验中其结果并未可知,因此并不推荐患者使用维生素补充剂。

    0

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    2016-05-26 wwzzly

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