DLBCL遺傳亞型概率分類工具的治療前景
作者:
小柯機器人發布時間:2020/4/17 19:54:28
美國國立衛生研究院的Louis M. Staudt研究組發現,擴散性大B細胞淋巴瘤(DLBCL)的遺傳亞型的概率分類工具具有治療意義。這一成果發表在2020年4月13日出版的《癌細胞》雜誌上。
他們描述一種算法,該算法根據患者的遺傳特徵確定其淋巴瘤屬於七個遺傳亞型之一的可能性。這種分類揭示了這些DLBCL亞型與各種惰性淋巴結和淋巴結外淋巴瘤類型之間的遺傳相似性,表明存在共同的發病機理。
這些遺傳亞型還具有獨特的基因表達譜、免疫微環境和免疫化學療法後的預後。遺傳亞型模型的功能分析突出了針對性療法的明顯易感性,從而支持此分類在精準醫療試驗中的應用。
據介紹,隨著DLBCL的精準醫療方法的發展,其明顯的遺傳性、表型和臨床異質性使人感到困惑。最近的多平臺基因組研究使用聚類方法揭示了DLBCL遺傳亞型的存在。
附:英文原文
Title: A Probabilistic Classification Tool for Genetic Subtypes of Diffuse Large B Cell Lymphoma with Therapeutic Implications
Author: George W. Wright, Da Wei Huang, James D. Phelan, Zana A. Coulibaly, Sandrine Roulland, Ryan M. Young, James Q. Wang, Roland Schmitz, Ryan D. Morin, Jeffrey Tang, Aixiang Jiang, Aleksander Bagaev, Olga Plotnikova, Nikita Kotlov, Calvin A. Johnson, Wyndham H. Wilson, David W. Scott, Louis M. Staudt
Issue&Volume: 2020/04/13
Abstract: The development of precision medicine approaches for diffuse large B cell lymphoma(DLBCL) is confounded by its pronounced genetic, phenotypic, and clinical heterogeneity.Recent multiplatform genomic studies revealed the existence of genetic subtypes ofDLBCL using clustering methodologies. Here, we describe an algorithm that determinesthe probability that a patient's lymphoma belongs to one of seven genetic subtypesbased on its genetic features. This classification reveals genetic similarities betweenthese DLBCL subtypes and various indolent and extranodal lymphoma types, suggestinga shared pathogenesis. These genetic subtypes also have distinct gene expression profiles,immune microenvironments, and outcomes following immunochemotherapy. Functional analysisof genetic subtype models highlights distinct vulnerabilities to targeted therapy,supporting the use of this classification in precision medicine trials.
DOI: 10.1016/j.ccell.2020.03.015
Source: https://www.cell.com/cancer-cell/fulltext/S1535-6108(20)30155-0