Biomarkers and Prognostic Factors in Cancer Diagnostics
Summary
The identification and validation of biomarkers and prognostic factors have transformed cancer diagnostics by enabling earlier detection, personalised treatment planning and more accurate prediction of disease outcome. Biomarkers include molecules such as proteins, nucleic acids or metabolites measured in tissue, blood or other bodily fluids that reflect tumour biology. Prognostic factors encompass clinical and molecular characteristics that predict disease course independently of therapy. Recent advances in genomic sequencing, proteomics and high-content imaging have expanded the repertoire of candidate markers. Liquid biopsies, notably circulating tumour DNA (ctDNA) analysis and circulating tumour cell enumeration, offer minimally invasive means to monitor tumour burden and emerging resistance. Multiplex immunohistochemistry and spatial transcriptomics are revealing the complexity of the tumour microenvironment, including immune infiltration and stromal interactions, which correlate with prognosis and response to immunotherapy. Machine-learning algorithms now integrate multimodal data to derive composite signatures for risk stratification. Collectively, these developments advance precision oncology by guiding patient selection for targeted agents, immunotherapies and adjuvant approaches, while offering the prospect of real-time surveillance of minimal residual disease across diverse cancer types.
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Biomarkers and Prognostic Factors in Cancer Diagnostics publication trend
The graph below shows the total number of articles in biomarkers and prognostic factors in cancer diagnostics across all publications each year (not limited to Nature Index journals).
Technical terms
Biomarker: A measurable indicator of normal or pathological processes, used for disease detection and monitoring.
Prognostic factor: A clinical or molecular characteristic that predicts outcome irrespective of treatment.
Circulating tumour DNA (ctDNA): Fragments of tumour-derived DNA in blood, used for non-invasive mutation analysis and disease monitoring.
Liquid biopsy: The sampling of non-solid biological tissue, mainly blood, to detect biomarkers such as ctDNA or circulating tumour cells.
Immunohistochemistry (IHC): A technique using labelled antibodies to detect specific antigens in tissue sections, informing diagnosis and prognostic evaluation.
References
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