Artikel ; Online: Mutations in the IFNγ-JAK-STAT Pathway Causing Resistance to Immune Checkpoint Inhibitors in Melanoma Increase Sensitivity to Oncolytic Virus Treatment.
Clinical cancer research : an official journal of the American Association for Cancer Research
2021 Band 27, Heft 12, Seite(n) 3432–3442
Abstract: Purpose: Next-generation sequencing studies and CRISPR-Cas9 screens have established mutations in the IFNγ-JAK-STAT pathway as an immune checkpoint inhibitor (ICI) resistance mechanism in a subset of patients with melanoma. We hypothesized ICI ... ...
Abstract | Purpose: Next-generation sequencing studies and CRISPR-Cas9 screens have established mutations in the IFNγ-JAK-STAT pathway as an immune checkpoint inhibitor (ICI) resistance mechanism in a subset of patients with melanoma. We hypothesized ICI resistance mutations in the IFNγ pathway would simultaneously render melanomas susceptible to oncolytic virus (OV) therapy. Experimental design: Cytotoxicity experiments were performed with a number of OVs on a matched melanoma cell line pair generated from a baseline biopsy and a progressing lesion with complete Results: The melanoma line from an anti-PD-1 progressing lesion was 7- and 22-fold more sensitive to the modified OVs, herpes simplex virus 1 (HSV1-dICP0) and vesicular stomatitis virus (VSV-Δ51), respectively, compared with the line from the baseline biopsy. RNAi, JAK1/2 inhibitor studies, and Conclusions: We provide mechanistic support for the use of OVs as a precision medicine strategy for both salvage therapy in ICI-resistant and first-line treatment in melanomas with IFNγ-JAK-STAT pathway mutations. Our study also supports JAK inhibitor-OV combination therapy for treatment-naïve melanomas without IFN signaling defects. |
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Mesh-Begriff(e) | Animals ; Cell Line, Tumor ; Humans ; Immune Checkpoint Inhibitors/pharmacology ; Immune Checkpoint Inhibitors/therapeutic use ; Janus Kinases/genetics ; Janus Kinases/metabolism ; Melanoma, Experimental/genetics ; Melanoma, Experimental/therapy ; Mice ; Mutation ; Oncolytic Viruses/genetics ; STAT Transcription Factors/genetics ; STAT Transcription Factors/metabolism ; Signal Transduction |
Chemische Substanzen | Immune Checkpoint Inhibitors ; STAT Transcription Factors ; Janus Kinases (EC 2.7.10.2) |
Sprache | Englisch |
Erscheinungsdatum | 2021-02-16 |
Erscheinungsland | United States |
Dokumenttyp | Journal Article ; Research Support, Non-U.S. Gov't |
ZDB-ID | 1225457-5 |
ISSN | 1557-3265 ; 1078-0432 |
ISSN (online) | 1557-3265 |
ISSN | 1078-0432 |
DOI | 10.1158/1078-0432.CCR-20-3365 |
Datenquelle | MEDical Literature Analysis and Retrieval System OnLINE |
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