PLoS ONE:肺癌分子亚型和遗传变异可能有助于个性化治疗

2012-05-19 Beyond 生物谷

针对特定疾病的分子亚型的癌症疗法能帮助医生调整治疗病人的个性化治疗。但科学家们发现,许多类型的癌症分子亚型比以前认为的那样更加多样化,包含进一步的遗传改变,这些变化可以影响病人的治疗反应。 以UNC为首的科学家小组首次证明患者有遗传变异导致的肺癌分子亚型会对对治疗有不同反应。这些研究结果是基于临床前模型和患者的肿瘤样本得来的,研究总结了三个非小细胞肺癌的分子亚型,并改进了对肿瘤亚型的分子分析。

针对特定疾病的分子亚型的癌症疗法能帮助医生调整治疗病人的个性化治疗。但科学家们发现,许多类型的癌症分子亚型比以前认为的那样更加多样化,包含进一步的遗传改变,这些变化可以影响病人的治疗反应。

以UNC为首的科学家小组首次证明患者有遗传变异导致的肺癌分子亚型会对对治疗有不同反应。这些研究结果是基于临床前模型和患者的肿瘤样本得来的,研究总结了三个非小细胞肺癌的分子亚型,并改进了对肿瘤亚型的分子分析。

他们的研究结果发表在5月10日,2012年公共科学图书馆的网络版。

该研究团队在2006年首次确定和报告了三个肺癌​​分子亚型,并命名为 Bronchoid 腺癌,鳞状癌和Magnoid亚型。

发表在PLoS One杂志上的论文中,研究人员试图确定发生在每一个具体的分子亚型中的不同基因突变。他们发现各亚型都会发生特定的基因突变,这些突变可能是治疗结合独立的预测值。

doi:10.1371/journal.pone.0036530
PMC:
PMID:

Differential Pathogenesis of Lung Adenocarcinoma Subtypes Involving Sequence Mutations, Copy Number, Chromosomal Instability, and Methylation

Matthew D. Wilkerson, Xiaoying Yi, Vonn Walter, Ni Zhao, Christopher R. Cabanski, Michele C. Hayward, C. Ryan Miller, Mark A. Socinski, Alden M. Parsons, Leigh B. Thorne, Benjamin E. Haithcock, Nirmal K. Veeramachaneni6, William K. Funkhouser, Scott H. Randell1, Philip S. Bernard, Charles M. Perou, D. Neil Haye*

Lung adenocarcinoma (LAD) has extreme genetic variation among patients, which is currently not well understood, limiting progress in therapy development and research. LAD intrinsic molecular subtypes are a validated stratification of naturally-occurring gene expression patterns and encompass different functional pathways and patient outcomes. Patients may have incurred different mutations and alterations that led to the different subtypes. We hypothesized that the LAD molecular subtypes co-occur with distinct mutations and alterations in patient tumors.

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