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Tumor Mutational Patterns and Infiltrating Lymphocyte Density in Young and Elderly Patients With Breast Cancer

机译:青年和老年乳腺癌患者的肿瘤突变模式和浸润淋巴细胞密度

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摘要

Background/Aim: Age may pertain to different tumor genotype characteristics which may interfere with treatment efficacy and prognosis. We investigated the distribution and prognostic effect of mutations and tumor infiltrating lymphocyte (stromal TIL density) in young (≤35 years) and elderly (>65 years) early breast cancer patients. Materials and Methods: Paraffin tumor genotypes of all clinical subtypes from 345 patients were examined. Results: A total of 638 mutations were detected in 221 patients (64.1%). Compared to young, elderly patients presented with lower TIL density (p<0.001) but more TILs in TP53 mutated tumors (p=0.042). Mutation in one, rather than in 2 or more genes, conferred better outcome (DFS: HR=0.51, p=0.016; OS: HR=0.47, p=0.015) but the effect was age-independent. Conclusion: There are fewer TILs and different mutations patterns in tumors from elderly patients compared to young. Age and TIL-independent gene agnostic co-mutations affect patient outcome.
机译:背景/目的:年龄可能与不同的肿瘤基因型特征有关,可能会影响治疗效果和预后。我们调查了早期(≤35岁)和老年人(> 65岁)早期乳腺癌患者中突变和肿瘤浸润淋巴细胞(基质TIL密度)的分布和预后效果。材料与方法:检查了345例患者的所有临床亚型的石蜡肿瘤基因型。结果:221例患者中共检测到638个突变(64.1%)。与年轻人相比,老年患者的TIL密度较低(p <0.001),而TP53突变肿瘤中的TIL较多(p = 0.042)。一个基因突变,而不是两个或多个基因突变,可带来更好的预后(DFS:HR = 0.51,p = 0.016; OS:HR = 0.47,p = 0.015),但其影响与年龄无关。结论:与年轻患者相比,老年患者的肿瘤中的TIL和更少的突变模式更少。年龄和不依赖TIL的基因无关突变会影响患者预后。

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