Unknown

Dataset Information

0

PRMT inhibition induces a viral mimicry response in triple-negative breast cancer.


ABSTRACT: Triple-negative breast cancer (TNBC) is the most aggressive breast cancer subtype with the worst prognosis and few effective therapies. Here we identified MS023, an inhibitor of type I protein arginine methyltransferases (PRMTs), which has antitumor growth activity in TNBC. Pathway analysis of TNBC cell lines indicates that the activation of interferon responses before and after MS023 treatment is a functional biomarker and determinant of response, and these observations extend to a panel of human-derived organoids. Inhibition of type I PRMT triggers an interferon response through the antiviral defense pathway with the induction of double-stranded RNA, which is derived, at least in part, from inverted repeat Alu elements. Together, our results represent a shift in understanding the antitumor mechanism of type I PRMT inhibitors and provide a rationale and biomarker approach for the clinical development of type I PRMT inhibitors.

SUBMITTER: Wu Q 

PROVIDER: S-EPMC9337992 | biostudies-literature | 2022 Aug

REPOSITORIES: biostudies-literature

altmetric image

Publications


Triple-negative breast cancer (TNBC) is the most aggressive breast cancer subtype with the worst prognosis and few effective therapies. Here we identified MS023, an inhibitor of type I protein arginine methyltransferases (PRMTs), which has antitumor growth activity in TNBC. Pathway analysis of TNBC cell lines indicates that the activation of interferon responses before and after MS023 treatment is a functional biomarker and determinant of response, and these observations extend to a panel of hum  ...[more]

Similar Datasets

| S-EPMC11817430 | biostudies-literature
| S-EPMC5450737 | biostudies-literature
| S-EPMC6175044 | biostudies-literature
| S-EPMC5097113 | biostudies-literature
| S-EPMC6599020 | biostudies-literature
| S-EPMC10786725 | biostudies-literature
| S-EPMC5768393 | biostudies-literature
| S-EPMC9061835 | biostudies-literature
| S-EPMC10203343 | biostudies-literature
| S-EPMC10772459 | biostudies-literature