Detailed Information on Publication Record
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 |
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MUNI/A/0951/2019, interní kód MU |
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MUNI/A/1087/2018, interní kód MU |
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NV19-08-00450, research and development project |
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90127, large research infrastructures |
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