Identification of New Vulnerabilities in Conjunctival Melanoma Using Image-Based High Content Drug Screening.
Details
Serval ID
serval:BIB_878327B7BEC9
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Identification of New Vulnerabilities in Conjunctival Melanoma Using Image-Based High Content Drug Screening.
Journal
Cancers
ISSN
2072-6694 (Print)
ISSN-L
2072-6694
Publication state
Published
Issued date
19/03/2022
Peer-reviewed
Oui
Volume
14
Number
6
Pages
1575
Language
english
Notes
Publication types: Journal Article
Publication Status: epublish
Publication Status: epublish
Abstract
Recent evidence suggests that numerous similarities exist between the genomic landscapes of both conjunctival and cutaneous melanoma. Since alterations of several components of the MAP kinases, PI3K/mTOR, and cell cycle pathways have been reported in conjunctival melanoma, we decided to assess the sensitivity of conjunctival melanoma to targeted inhibition mostly of kinase inhibitors. A high content drug screening assay based on automated fluorescence microscopy was performed in three conjunctival melanoma cell lines with different genomic backgrounds with 489 kinase inhibitors and 53 other inhibitors. IC50 and apoptosis induction were respectively assessed for 53 and 48 compounds. The genomic background influenced the response to MAK and PI3K/mTOR inhibition, more specifically cell lines with BRAF <sup>V600E</sup> mutations were more sensitive to BRAF/MEK inhibition, while CRMM2 bearing the NRAS <sup>Q61L</sup> mutation was more sensitive to PI3k/mTOR inhibition. All cell lines demonstrated sensitivity to cell cycle inhibition, being more pronounced in CRMM2, especially with polo-like inhibitors. Our data also revealed new vulnerabilities to Hsp90 and Src inhibition. This study demonstrates that the genomic background partially influences the response to targeted therapy and uncovers a large panel of potential vulnerabilities in conjunctival melanoma that may expand available options for the management of this tumor.
Keywords
Hsp90, MAPK pathway, PI3K/mTOR pathway, Tirbanibulin, aurora-kinase, conjunctival melanoma, cyclin dependent kinase, drug screening, kinase inhibitors, polo-like kinase
Pubmed
Web of science
Open Access
Yes
Create date
28/03/2022 10:11
Last modification date
15/07/2022 7:11