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Ref Type Journal Article
PMID (31408619)
Authors Fong JY, Pignata L, Goy PA, Kawabata KC, Lee SC, Koh CM, Musiani D, Massignani E, Kotini AG, Penson A, Wun CM, Shen Y, Schwarz M, Low DH, Rialdi A, Ki M, Wollmann H, Mzoughi S, Gay F, Thompson C, Hart T, Barbash O, Luciani GM, Szewczyk MM, Wouters BJ, Delwel R, Papapetrou EP, Barsyte-Lovejoy D, Arrowsmith CH, Minden MD, Jin J, Melnick A, Bonaldi T, Abdel-Wahab O, Guccione E
Title Therapeutic Targeting of RNA Splicing Catalysis through Inhibition of Protein Arginine Methylation.
Journal Cancer cell
Vol 36
Issue 2
Date 2019 08 12
URL
Abstract Text Cancer-associated mutations in genes encoding RNA splicing factors (SFs) commonly occur in leukemias, as well as in a variety of solid tumors, and confer dependence on wild-type splicing. These observations have led to clinical efforts to directly inhibit the spliceosome in patients with refractory leukemias. Here, we identify that inhibiting symmetric or asymmetric dimethylation of arginine, mediated by PRMT5 and type I protein arginine methyltransferases (PRMTs), respectively, reduces splicing fidelity and results in preferential killing of SF-mutant leukemias over wild-type counterparts. These data identify genetic subsets of cancer most likely to respond to PRMT inhibition, synergistic effects of combined PRMT5 and type I PRMT inhibition, and a mechanistic basis for the therapeutic efficacy of PRMT inhibition in cancer.

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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
KMT2A - MLLT3 acute myeloid leukemia sensitive GSK3203591 + MS023 Preclinical - Cell culture Actionable In a preclinical study, MS023 and GSK3203591 synergistically inhibited survival of murine KMT2A-MLLT3 (reported as MLL-AF9)-driven acute myeloid leukemia (AML) cells and human AML cell lines harboring KMT2A-MLLT3 in culture (PMID: 31408619). 31408619
RUNX1 rearrange SF3B1 K700E acute myeloid leukemia sensitive EPZ015666 + MS023 Preclinical - Pdx Actionable In a preclinical study, MS023 and EPZ015666 (GSK3235025) combination treatment reduced tumor burden in a patient-derived xenograft (PDX) model of acute myeloid leukemia cells harboring RUNX1 rearrangement and SF3B1 K700E (PMID: 31408619). 31408619
SF3B1 Y765C acute myeloid leukemia sensitive GSK3203591 + MS023 Preclinical - Patient cell culture Actionable In a preclinical study, GSK3203591 and MS023 synergistically inhibited survival of a patient-derived acute myeloid leukemia cell line harboring SF3B1 Y765C in culture (PMID: 31408619). 31408619
KMT2A - MLLT3 SRSF2 P95H acute myeloid leukemia sensitive GSK3203591 Preclinical - Cell culture Actionable In a preclinical study, murine KMT2A-MLLT3 ( reported as MLL-AF9)-driven acute myeloid leukemia cells expressing SRSF2 P95H demonstrated increased sensitivity to GSK3203591 compared to cells expressing wild-type SRSF2 in culture (PMID: 31408619). 31408619
SRSF2 P95H chronic myeloid leukemia sensitive GSK3203591 + MS023 Preclinical - Cell culture Actionable In a preclinical study, MS023 and GSK3203591 synergistically inhibited survival of a chronic myeloid leukemia cell line with knockin SRSF2 P95H in culture (PMID: 31408619). 31408619
U2AF1 mutant acute myeloid leukemia predicted - sensitive GSK3203591 Preclinical - Patient cell culture Actionable In a preclinical study, patient-derived acute myeloid leukemia cell lines harboring mutations in U2AF1 (n=3), SRSF2 (n=9), or SF3B1 (n=4) demonstrated increased sensitivity to GSK3203591 compared to spliceosomal wild-type cell lines in culture (PMID: 31408619). 31408619
KMT2A - MLLT3 SRSF2 P95H acute myeloid leukemia sensitive EPZ015666 Preclinical Actionable In a preclinical study, EPZ015666 (GSK3235025) treatment decreased SDMA levels and prolonged survival in a mouse model of KMT2A-MLLT3 (MLL-AF9)-driven acute myeloid leukemia harboring SRSF2 P95H, but not in a SRSR2 wild-type model (PMID: 31408619). 31408619
SRSF2 P95L hematologic cancer sensitive GSK3203591 + MS023 Preclinical - Cell culture Actionable In a preclinical study, hematopoietic progenitor cells differentiated from iPSCs harboring SRSF2 P95L demonstrated increased sensitivity to GSK3203591 and MS023 combination treatment compare to SRSF2 wild-type cells in culture (PMID: 31408619). 31408619
SRSF2 mutant acute myeloid leukemia predicted - sensitive GSK3203591 Preclinical - Patient cell culture Actionable In a preclinical study, patient-derived acute myeloid leukemia cell lines harboring mutations in U2AF1 (n=3), SRSF2 (n=9), or SF3B1 (n=4) demonstrated increased sensitivity to GSK3203591 compared to spliceosomal wild-type cell lines in culture (PMID: 31408619). 31408619
SRSF2 P95H acute myeloid leukemia sensitive GSK3203591 + MS023 Preclinical - Patient cell culture Actionable In a preclinical study, GSK3203591 and MS023 synergistically inhibited survival of patient-derived acute myeloid leukemia cell lines harboring SRSF2 P95H in culture (PMID: 31408619). 31408619
KMT2A - MLLT3 acute myeloid leukemia sensitive E7107 + GSK3203591 Preclinical - Cell culture Actionable In a preclinical study, E7107 and GSK3203591 synergistically inhibited survival of murine KMT2A-MLLT3 (reported as MLL-AF9)-driven acute myeloid leukemia cells in culture, regardless of SRSF2 mutation status (PMID: 31408619). 31408619
SF3B1 mutant acute myeloid leukemia predicted - sensitive GSK3203591 Preclinical - Patient cell culture Actionable In a preclinical study, patient-derived acute myeloid leukemia cell lines harboring mutations in U2AF1 (n=3), SRSF2 (n=9), or SF3B1 (n=4) demonstrated increased sensitivity to GSK3203591 compared to spliceosomal wild-type cell lines in culture (PMID: 31408619). 31408619
SRSF2 P95H chronic myeloid leukemia sensitive E7107 + GSK3203591 + MS023 Preclinical - Cell culture Actionable In a preclinical study, E7107, MS023, and GSK3203591 triple combination potently inhibited survival of a chronic myeloid leukemia cell line with knockin SRSF2 P95H in culture (PMID: 31408619). 31408619
KMT2A - MLLT3 acute myeloid leukemia sensitive E7107 + MS023 Preclinical - Cell culture Actionable In a preclinical study, MS023 and E7107 synergistically inhibited survival of murine KMT2A-MLLT3 (reported as MLL-AF9)-driven acute myeloid leukemia cells in culture, regardless of SRSF2 mutation status (PMID: 31408619). 31408619
SF3B1 K700E chronic myeloid leukemia sensitive GSK3203591 + MS023 Preclinical - Cell culture Actionable In a preclinical study, MS023 and GSK3203591 synergistically inhibited survival of a chronic myeloid leukemia cell line with knockin SF3B1 K700E in culture (PMID: 31408619). 31408619
KMT2A - MLLT3 SRSF2 P95H acute myeloid leukemia sensitive MS023 Preclinical Actionable In a preclinical study, MS023 inhibited survival of murine KMT2A-MLLT3 ( reported as MLL-AF9)-driven acute myeloid leukemia cells harboring SRSF2 P95H in culture and delayed disease progression in mouse models, but not in wild-type SRSF2 models (PMID: 31408619). 31408619
KMT2A - MLLT3 SRSF2 P95H acute myeloid leukemia sensitive E7107 Preclinical - Cell culture Actionable In a preclinical study, murine KMT2A-MLLT3 ( reported as MLL-AF9)-driven acute myeloid leukemia cells expressing SRSF2 P95H demonstrated increased sensitivity to E7107 compared to cells expressing wild-type SRSF2 in culture (PMID: 31408619). 31408619