Association of Omics Features with Histopathology Patterns in Lung Adenocarcinoma.

Association of Omics Features with Histopathology Patterns in Lung Adenocarcinoma.
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DOI:
10.1016/j.cels.2017.10.014
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发表时间:
2017-12-27
期刊:
影响因子:
9.3
通讯作者:
Snyder M
Snyder M
中科院分区:
生物学1区
文献类型:
--
作者:
Yu KH;Berry GJ;Rubin DL;Ré C;Altman RB;Snyder M

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Adenocarcinoma accounts for more than 40% of lung malignancy, and microscopic pathology evaluation is indispensable for its diagnosis. However, how histopathology findings relate to molecular abnormalities remains largely unknown. Here we obtained hematoxylin and eosin stained whole-slide histopathology images, pathology reports, RNA-sequencing, and proteomics data of 538 lung adenocarcinoma patients from The Cancer Genome Atlas and used these to identify molecular pathways associated with histopathology patterns. We report cell cycle regulation and nucleotide binding pathways underpinning tumor cell dedifferentiation, and we predicted histology grade using transcriptomics and proteomics signatures (area under curve > 0.80). We built an integrative histopathology-transcriptomics model to generate better prognostic predictions for stage I patients (P=0.0182±0.0021) compared with gene expression or histopathology studies alone, and the results were replicated in an independent cohort (P=0.0220±0.0070). These results motivate the integration of histopathology and omics data to investigate molecular mechanisms of pathology findings and enhance clinical prognostic prediction. Integrative omics-histopathology analyses identified the gene and protein expression patterns associated with lung adenocarcinoma differentiation. Regularized machine-learning models using both transcriptomics and histopathology information better predicted the survival outcomes of stage I lung adenocarcinoma patients, with the results replicated in an independent cohort.
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