FOLFOX treatment response prediction in metastatic or recurrent colorectal cancer patients via machine learning algorithms.
Journal:
Cancer medicine
PMID:
31893575
Abstract
Early identification of metastatic or recurrent colorectal cancer (CRC) patients who will be sensitive to FOLFOX (5-FU, leucovorin and oxaliplatin) therapy is very important. We performed microarray meta-analysis to identify differentially expressed genes (DEGs) between FOLFOX responders and nonresponders in metastatic or recurrent CRC patients, and found that the expression levels of WASHC4, HELZ, ERN1, RPS6KB1, and APPBP2 were downregulated, while the expression levels of IRF7, EML3, LYPLA2, DRAP1, RNH1, PKP3, TSPAN17, LSS, MLKL, PPP1R7, GCDH, C19ORF24, and CCDC124 were upregulated in FOLFOX responders compared with nonresponders. Subsequent functional annotation showed that DEGs were significantly enriched in autophagy, ErbB signaling pathway, mitophagy, endocytosis, FoxO signaling pathway, apoptosis, and antifolate resistance pathways. Based on those candidate genes, several machine learning algorithms were applied to the training set, then performances of models were assessed via the cross validation method. Candidate models with the best tuning parameters were applied to the test set and the final model showed satisfactory performance. In addition, we also reported that MLKL and CCDC124 gene expression were independent prognostic factors for metastatic CRC patients undergoing FOLFOX therapy.
Authors
Keywords
Antineoplastic Combined Chemotherapy Protocols
Biomarkers, Tumor
Cell Cycle Proteins
Colorectal Neoplasms
Datasets as Topic
Fluorouracil
Gene Expression Profiling
Gene Expression Regulation, Neoplastic
Humans
Intracellular Signaling Peptides and Proteins
Leucovorin
Machine Learning
Neoplasm Recurrence, Local
Oligonucleotide Array Sequence Analysis
Organoplatinum Compounds
Prognosis
Protein Kinases
Response Evaluation Criteria in Solid Tumors