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Gene signatures for cancer research: A 25-year retrospective and future avenues

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  • Wei Liu
  • Huaqin He
  • Davide Chicco

Abstract

Over the past two decades, extensive studies, particularly in cancer analysis through large datasets like The Cancer Genome Atlas (TCGA), have aimed at improving patient therapies and precision medicine. However, limited overlap and inconsistencies among gene signatures across different cohorts pose challenges. The dynamic nature of the transcriptome, encompassing diverse RNA species and functional complexities at gene and isoform levels, introduces intricacies, and current gene signatures face reproducibility issues due to the unique transcriptomic landscape of each patient. In this context, discrepancies arising from diverse sequencing technologies, data analysis algorithms, and software tools further hinder consistency. While careful experimental design, analytical strategies, and standardized protocols could enhance reproducibility, future prospects lie in multiomics data integration, machine learning techniques, open science practices, and collaborative efforts. Standardized metrics, quality control measures, and advancements in single-cell RNA-seq will contribute to unbiased gene signature identification. In this perspective article, we outline some thoughts and insights addressing challenges, standardized practices, and advanced methodologies enhancing the reliability of gene signatures in disease transcriptomic research.

Suggested Citation

  • Wei Liu & Huaqin He & Davide Chicco, 2024. "Gene signatures for cancer research: A 25-year retrospective and future avenues," PLOS Computational Biology, Public Library of Science, vol. 20(10), pages 1-10, October.
    • Handle: RePEc:plo:pcbi00:1012512
    DOI: 10.1371/journal.pcbi.1012512
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