ArticleScientific reports2019
Targeted multiplex proteomics for molecular prescreening and biomarker discovery in metastatic colorectal cancer.
Article in Scientific reports, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed, 17 citations in OpenAlex.
- MYC targeting by OMO-103 in solid tumors: a phase 1 trial.Nature medicine · 2024Article
- An Updated Review on Molecular Biomarkers in Diagnosis and Therapy of Colorectal Cancer.Current cancer drug targets · 2024Review
- An Introduction to Advanced Targeted Acquisition Methods.Molecular & cellular proteomics : MCP · 2021Review
- Lineage Reversion Drives WNT Independence in Intestinal Cancer.Cancer discovery · 2020Article
- EGFR Blockade Reverts Resistance to KRASCancer discovery · 2020Article
- Recent advances in mass spectrometry based clinical proteomics: applications to cancer research.Clinical proteomics · 2020Review
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Authors and funding
13 authors at 3 institutions in 2 countries.
Funding
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Abstract
Protein biomarkers are widely used in cancer diagnosis, prognosis, and prediction of treatment response. Here we introduce the use of targeted multiplex proteomics (TMP) as a tool to simultaneously measure a panel of 54 proteins involved in oncogenic, tumour suppression, drug metabolism and resistance, in patients with metastatic colorectal cancer (mCRC). TMP provided valuable diagnostic information by unmasking an occult neuroendocrine differentiation and identifying a misclassified case based on abnormal proteins phenotype. No significant differences in protein levels between unpaired primary and metastatic samples were observed. Four proteins were found differentially expressed in KRAS-mutant as compared to wild-type tumours (overexpressed in mutant: KRAS, EGFR; overexpressed in wild-type: TOPO1, TOP2A). Survival analyses revealed the association between mesothelin expression and poor overall survival, whereas lack of PTEN protein expression associated with lower progression-free survival with anti-EGFR-based therapy in the first-line setting for patients with RAS wild-type tumour. Finally, outlier analysis identified putative targetable proteins in 65% of patients lacking a targetable genomic alteration. Our data show that TMP constitutes a promising, novel molecular prescreening tool in mCRC to identify protein expression alterations that may impact on patient outcomes and more precisely guide patient eligibility to clinical trials with novel targeted experimental therapies.
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