Novel and Potent Small Molecules against Melanoma Harboring BRAF Class I/II/III Mutants for Overcoming Drug Resistance

Melanoma accounts for the majority of skin cancer deaths. About 50% of all melanomas are associated with BRAF mutations. BRAF mutations are classified into three classes with regard to dependency on RAF dimerization and RAS signaling. The most frequently occurring class I BRAF V600 mutations are sen...

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Main Authors: Namkyoung Kim, Injae Shin, Jiwon Lee, Eunhye Jeon, Younghoon Kim, Seongshick Ryu, Eunhye Ju, Wonjeong Cho, Taebo Sim
Format: Article
Language:English
Published: MDPI AG 2021-04-01
Series:International Journal of Molecular Sciences
Subjects:
Online Access:https://www.mdpi.com/1422-0067/22/7/3783
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author Namkyoung Kim
Injae Shin
Jiwon Lee
Eunhye Jeon
Younghoon Kim
Seongshick Ryu
Eunhye Ju
Wonjeong Cho
Taebo Sim
author_facet Namkyoung Kim
Injae Shin
Jiwon Lee
Eunhye Jeon
Younghoon Kim
Seongshick Ryu
Eunhye Ju
Wonjeong Cho
Taebo Sim
author_sort Namkyoung Kim
collection DOAJ
description Melanoma accounts for the majority of skin cancer deaths. About 50% of all melanomas are associated with BRAF mutations. BRAF mutations are classified into three classes with regard to dependency on RAF dimerization and RAS signaling. The most frequently occurring class I BRAF V600 mutations are sensitive to vemurafenib whereas class II and class III mutants, non-V600 BRAF mutants are resistant to vemurafenib. Herein we report six pyrimido[4,5-<i>d</i>]pyrimidin-2-one derivatives possessing highly potent anti-proliferative activities on melanoma cells harboring BRAF class I/II/III mutants. Novel and most potent derivative, SIJ1777, possesses not only two-digit nanomolar potency but also 2 to 14-fold enhanced anti-proliferative activities compared with reference compound, GNF-7 against melanoma cells (SK-MEL-2, SK-MEL-28, A375, WM3670, WM3629). Moreover, SIJ1777 substantially inhibits the activation of MEK, ERK, and AKT and remarkably induces apoptosis and significantly blocks migration, invasion, and anchorage-independent growth of melanoma cells harboring BRAF class I/II/II mutations while both vemurafenib and PLX8394 have little to no effects on melanoma cells expressing BRAF class II/III mutations. Taken together, our six GNF-7 derivatives exhibit highly potent activities against melanoma cells harboring class I/II/III BRAF mutations compared with vemurafenib as well as PLX8394.
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spelling doaj.art-00825ae3172043629bb73af20bf574a52023-11-21T14:21:42ZengMDPI AGInternational Journal of Molecular Sciences1661-65961422-00672021-04-01227378310.3390/ijms22073783Novel and Potent Small Molecules against Melanoma Harboring BRAF Class I/II/III Mutants for Overcoming Drug ResistanceNamkyoung Kim0Injae Shin1Jiwon Lee2Eunhye Jeon3Younghoon Kim4Seongshick Ryu5Eunhye Ju6Wonjeong Cho7Taebo Sim8KU-KIST Graduate School of Converging Science and Technology, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, KoreaKU-KIST Graduate School of Converging Science and Technology, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, KoreaSeverance Biomedical Science Institute, Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, KoreaSeverance Biomedical Science Institute, Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, KoreaKU-KIST Graduate School of Converging Science and Technology, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, KoreaKU-KIST Graduate School of Converging Science and Technology, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, KoreaKU-KIST Graduate School of Converging Science and Technology, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, KoreaSeverance Biomedical Science Institute, Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, KoreaKU-KIST Graduate School of Converging Science and Technology, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, KoreaMelanoma accounts for the majority of skin cancer deaths. About 50% of all melanomas are associated with BRAF mutations. BRAF mutations are classified into three classes with regard to dependency on RAF dimerization and RAS signaling. The most frequently occurring class I BRAF V600 mutations are sensitive to vemurafenib whereas class II and class III mutants, non-V600 BRAF mutants are resistant to vemurafenib. Herein we report six pyrimido[4,5-<i>d</i>]pyrimidin-2-one derivatives possessing highly potent anti-proliferative activities on melanoma cells harboring BRAF class I/II/III mutants. Novel and most potent derivative, SIJ1777, possesses not only two-digit nanomolar potency but also 2 to 14-fold enhanced anti-proliferative activities compared with reference compound, GNF-7 against melanoma cells (SK-MEL-2, SK-MEL-28, A375, WM3670, WM3629). Moreover, SIJ1777 substantially inhibits the activation of MEK, ERK, and AKT and remarkably induces apoptosis and significantly blocks migration, invasion, and anchorage-independent growth of melanoma cells harboring BRAF class I/II/II mutations while both vemurafenib and PLX8394 have little to no effects on melanoma cells expressing BRAF class II/III mutations. Taken together, our six GNF-7 derivatives exhibit highly potent activities against melanoma cells harboring class I/II/III BRAF mutations compared with vemurafenib as well as PLX8394.https://www.mdpi.com/1422-0067/22/7/3783melanomavemurafenib-resistantBRAF class I/II/III mutantspan-class BRAF inhibitortype-II kinase inhibitor
spellingShingle Namkyoung Kim
Injae Shin
Jiwon Lee
Eunhye Jeon
Younghoon Kim
Seongshick Ryu
Eunhye Ju
Wonjeong Cho
Taebo Sim
Novel and Potent Small Molecules against Melanoma Harboring BRAF Class I/II/III Mutants for Overcoming Drug Resistance
International Journal of Molecular Sciences
melanoma
vemurafenib-resistant
BRAF class I/II/III mutants
pan-class BRAF inhibitor
type-II kinase inhibitor
title Novel and Potent Small Molecules against Melanoma Harboring BRAF Class I/II/III Mutants for Overcoming Drug Resistance
title_full Novel and Potent Small Molecules against Melanoma Harboring BRAF Class I/II/III Mutants for Overcoming Drug Resistance
title_fullStr Novel and Potent Small Molecules against Melanoma Harboring BRAF Class I/II/III Mutants for Overcoming Drug Resistance
title_full_unstemmed Novel and Potent Small Molecules against Melanoma Harboring BRAF Class I/II/III Mutants for Overcoming Drug Resistance
title_short Novel and Potent Small Molecules against Melanoma Harboring BRAF Class I/II/III Mutants for Overcoming Drug Resistance
title_sort novel and potent small molecules against melanoma harboring braf class i ii iii mutants for overcoming drug resistance
topic melanoma
vemurafenib-resistant
BRAF class I/II/III mutants
pan-class BRAF inhibitor
type-II kinase inhibitor
url https://www.mdpi.com/1422-0067/22/7/3783
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