Reference Detail

Contact

Missing content? – Request curation!

Request curation for specific Genes, variants, or PubMed publications.

Have questions, comments or suggestions? - Let us know!

Email us at : ckbsupport@jax.org

Ref Type Journal Article
PMID (31704811)
Authors Lehtomaki KI, Lahtinen LI, Rintanen N, Kuopio T, Kholova I, Makela R, Rantala JK, Kellokumpu-Lehtinen PL, Kononen J
Title Clonal Evolution of MEK/MAPK Pathway Activating Mutations in a Metastatic Colorectal Cancer Case.
Journal Anticancer research
Vol 39
Issue 11
Date 2019 Nov
URL
Abstract Text The aim of this study was to examine clonal heterogeneity, to test the utility of liquid biopsy in monitoring disease progression and to evaluate the usefulness of ex vivo drug screening in a BRAF L597Q-mutated colorectal cancer (CRC) patient developing metastases during adjuvant therapy.Next generation sequencing (NGS) and droplet digital PCR (ddPCR) were performed in samples from tumor tissues and liquid biopsies. Live cancer cells from a metastatic lesion were used in ex vivo drug sensitivity assays.We found evidence of continued dependence of MEK/MAPK pathway activation, but different activating mutations in primary tumor and metastases. Liquid biopsy based BRAF L597Q ddPCR testing was a sensitive personalized biomarker predicting the rise of clinically aggressive metastatic disease. Ex vivo drug sensitivity assays with BRAF L597Q mutated cells showed response to MEK/MAPK targeted therapies.The rare BRAF L597Q mutation may be associated with aggressive tumor behavior in CRC. Liquid biopsy can be used to capture clinically relevant tumor features.

Filtering

  • Case insensitive filtering will display rows where any text in any cell matches the filter term
  • Simple literal full or partial string matches
  • Separate multiple filter terms with a spaces, order doesn't matter (a b c and c b a are equivalent )
  • Filtering will only apply to rows that are already loaded on the page, filtering has no impact on query parameters
  • Use quotes to match a longer phrase which contains spaces "mtor c1483f"

Sorting

  • Generally, the default sort order for tables is set to be first column ascending, however, specific tables may set a different default sort order.
  • Click on any column header arrows to sort by that column
  • Hold down the Shift key and click multiple columns to sort by more than one column, be sure to set ascending or descending order for a given column, before moving on to the next column.

Molecular Profile Treatment Approach
Gene Name Source Synonyms Protein Domains Gene Description Gene Role
Therapy Name Drugs Efficacy Evidence Clinical Trials
Drug Name Trade Name Synonyms Drug Classes Drug Description
Gene Variant Impact Protein Effect Variant Description Associated with drug Resistance
Molecular Profile Indication/Tumor Type Response Type Therapy Name Approval Status Evidence Type Efficacy Evidence References
BRAF L597Q colon adenocarcinoma predicted - sensitive Trametinib Preclinical - Patient cell culture Actionable In a preclinical study, Mekinist (trametinib) inhibited growth of tumor cells derived from the metachronous para-aortal lymph node metastasis harboring BRAF L597Q, which was resected from a patient with colon adenocarcinoma (PMID: 31704811). 31704811
BRAF L597Q colon adenocarcinoma predicted - sensitive Selumetinib Preclinical - Patient cell culture Actionable In a preclinical study, Koselugo (selumetinib) inhibited growth of tumor cells derived from the metachronous para-aortal lymph node metastasis harboring BRAF L597Q, which was resected from a patient with colon adenocarcinoma (PMID: 31704811). 31704811
BRAF L597Q colon adenocarcinoma predicted - sensitive Cetuximab + Trametinib Preclinical - Patient cell culture Actionable In a preclinical study, Mekinist (trametinib) and Erbitux (cetuximab) synergistically inhibited growth of tumor cells derived from the metachronous para-aortal lymph node metastasis harboring BRAF L597Q, which was resected from a patient with colon adenocarcinoma (PMID: 31704811). 31704811
BRAF L597Q colon adenocarcinoma predicted - sensitive Sapitinib Preclinical - Patient cell culture Actionable In a preclinical study, Sapitinib (AZD8931) inhibited growth of tumor cells derived from the metachronous para-aortal lymph node metastasis harboring BRAF L597Q, which was resected from a patient with colon adenocarcinoma (PMID: 31704811). 31704811