Reference Detail

Ref Type

Journal Article

PMID

(36806896)

Authors

Kang J, Deng QM, Feng W, Chen ZH, Su JW, Chen HJ, Wang WX, Zhang S, Wang Q, Chen Z, Zhong WZ, Xu CW, Yang JJ

Title

Response and acquired resistance to MET inhibitors in de novo MET fusion-positive advanced non-small cell lung cancer.

Journal	Vol	Issue	Date	Pages	Journal Short Title
Lung cancer (Amsterdam, Netherlands)	178		2023 Feb 01	66-74	Lung Cancer

URL

Abstract Text

De novo mesenchymal-to-epithelial transition (MET) gene fusions in non-small cell lung cancer (NSCLC) are a promising target for MET tyrosine kinase inhibitors (TKIs). We aimed to examine the response to targeted therapy with MET TKIs and resistance mechanisms in de novo MET fusion-positive NSCLC as these have not been comprehensively explored.We examined the MET fusions in 4,429 patients with advanced-stage NSCLC using targeted next-generation sequencing and validated the results using RT-PCR. We analyzed cellular models harboring MET fusions and established a patient-derived organoid (PDO) model.We identified 13 (0.29 %, 13/4429) patients with de novo MET fusions and found EPHB4, THAP5, TNPO3, and DST as novel MET fusion partners. The most common concomitant gene with MET fusions was TP53 mutations. Among 12 patients receiving MET TKI treatment, two achieved stable disease, six achieved partial response, and four underwent progressive disease. An in vitro study showed that EPHB4-MET is a functional driver gene. MET inhibitors significantly inhibited the proliferation and phosphorylation of downstream STAT3, AKT, and ERK1/2 in EPHB4-MET overexpressing cells. Acquired MET D1228H/N or D1246N mutations were found in patients harboring MET fusions after acquiring resistance to MET TKIs. Tivantinib showed optimal suppression efficacy in a PDO model with an acquired MET D1228N mutation.MET fusions occur in a rare subset of patients with NSCLC and represent a promising therapeutic target. MET secondary mutations D1228H/N or D1246N present the potential resistance mechanisms of MET inhibitors in patients with de novo MET fusions.

Filtering

Case insensitive filtering will display rows if any text in any cell matches the filter term
Use simple literal full or partial string matches
Separate multiple filter terms with a space. Any order may be used (i. e. 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 on a longer phrase with spaces (i.e. "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
EML4 - ALK ALK L1196M ALK G1202R	lung non-small cell carcinoma	predicted - resistant	Brigatinib	Case Reports/Case Series	Actionable	In a clinical case study, ALK L1196M and ALK G1202R were identified in the post-progression circulating tumor DNA of a patient with non-small cell lung cancer harboring EML4-ALK who progressed on treatment with Alunbrig (brigatinib), and in a preclinical study, cells expressing EML4-ALK, ALK L1196M, and ALK G1202R were resistant to Alunbrig (brigatinib) in culture (PMID: 38448512, PMID: 36806896).	36806896 38448512