J 2020

Dual Targeting of BRAF and mTOR Signaling in Melanoma Cells with Pyridinyl Imidazole Compounds

PALUŠOVÁ, Veronika, Tereza RENZOVÁ, Amandine VERLANDE, Tereza VACLOVÁ, Michaela MEDKOVÁ et. al.

Basic information

Original name

Dual Targeting of BRAF and mTOR Signaling in Melanoma Cells with Pyridinyl Imidazole Compounds

Authors

PALUŠOVÁ, Veronika (703 Slovakia, belonging to the institution), Tereza RENZOVÁ (203 Czech Republic, belonging to the institution), Amandine VERLANDE (250 France, belonging to the institution), Tereza VACLOVÁ (203 Czech Republic, belonging to the institution), Michaela MEDKOVÁ (203 Czech Republic, belonging to the institution), Linda CETLOVÁ (203 Czech Republic, belonging to the institution), Miroslava SEDLÁČKOVÁ (203 Czech Republic, belonging to the institution), Hana HŘÍBKOVÁ (203 Czech Republic, belonging to the institution), Iva SLANINOVÁ (203 Czech Republic, belonging to the institution), Miriama KRUTÁ (703 Slovakia, belonging to the institution), Vladimír ROTREKL (203 Czech Republic, belonging to the institution), Hana UHLIROVA (203 Czech Republic), Aneta KRIZOVA (203 Czech Republic), Radim CHMELIK (203 Czech Republic), Pavel VESELY (203 Czech Republic), Michaela KRAFČÍKOVÁ (703 Slovakia, belonging to the institution), Lukáš TRANTÍREK (203 Czech Republic, belonging to the institution), Kay Oliver SCHINK (578 Norway) and Stjepan ULDRIJAN (203 Czech Republic, guarantor, belonging to the institution)

Edition

Cancers, BASEL, MDPI, 2020, 2072-6694

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

30204 Oncology

Country of publisher

Switzerland

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Impact factor

Impact factor: 6.639

RIV identification code

RIV/00216224:14110/20:00116135

Organization unit

Faculty of Medicine

UT WoS

000549386200001

Keywords in English

melanoma; BRAF V600E; BRAF inhibitor; small molecule drug; pyridinyl imidazole; endosome; lysosome; mTORC1; ER stress

Tags

International impact, Reviewed
Změněno: 14/10/2024 17:36, Ing. Jana Kuchtová

Abstract

V originále

BRAF inhibitors can delay the progression of metastatic melanoma, but resistance usually emerges, leading to relapse. Drugs simultaneously targeting two or more pathways essential for cancer growth could slow or prevent the development of resistant clones. Here, we identified pyridinyl imidazole compounds SB202190, SB203580, and SB590885 as dual inhibitors of critical proliferative pathways in human melanoma cells bearing the V600E activating mutation of BRAF kinase. We found that the drugs simultaneously disrupt the BRAF V600E-driven extracellular signal-regulated kinase (ERK) mitogen-activated protein kinase (MAPK) activity and the mechanistic target of rapamycin complex 1 (mTORC1) signaling in melanoma cells. Pyridinyl imidazole compounds directly inhibit BRAF V600E kinase. Moreover, they interfere with the endolysosomal compartment, promoting the accumulation of large acidic vacuole-like vesicles and dynamic changes in mTOR signaling. A transient increase in mTORC1 activity is followed by the enrichment of the Ragulator complex protein p18/LAMTOR1 at contact sites of large vesicles and delocalization of mTOR from the lysosomes. The induced disruption of the endolysosomal pathway not only disrupts mTORC1 signaling, but also renders melanoma cells sensitive to endoplasmic reticulum (ER) stress. Our findings identify new activities of pharmacologically relevant small molecule compounds and provide a biological rationale for the development of anti-melanoma therapeutics based on the pyridinyl imidazole core.

Links

LM2018129, research and development project
Name: Národní infrastruktura pro biologické a medicínské zobrazování Czech-BioImaging
Investor: Ministry of Education, Youth and Sports of the CR
MUNI/A/0951/2019, interní kód MU
Name: Buněčná a molekulární biologie pro Biomedicínské vědy
Investor: Masaryk University, Category A
MUNI/A/1087/2018, interní kód MU
Name: Molekulární a buněčná biologie pro biomedicínské vědy
Investor: Masaryk University, Category A
NV19-08-00450, research and development project
Name: Atomárně rozlišená NMR spektroskopie in vivo jako nástroj pro biologické testování terapeuticky významných cílů v genomové ne-kanonické DNA a jejich interakcí s léčivy ve fenotypově diverzifikovaných nádorových buňkách.
Investor: Ministry of Health of the CR
90127, large research infrastructures
Name: CIISB II