Oncogenic KRAS blockade therapy: renewed enthusiasm and persistent challenges

Abstract Across a broad range of human cancers, gain-of-function mutations in RAS genes (HRAS, NRAS, and KRAS) lead to constitutive activity of oncoproteins responsible for tumorigenesis and cancer progression. The targeting of RAS with drugs is challenging because RAS lacks classic and tractable dr...

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Main Authors: Daolin Tang, Guido Kroemer, Rui Kang
Format: Article
Language:English
Published: BMC 2021-10-01
Series:Molecular Cancer
Subjects:
Online Access:https://doi.org/10.1186/s12943-021-01422-7
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author Daolin Tang
Guido Kroemer
Rui Kang
author_facet Daolin Tang
Guido Kroemer
Rui Kang
author_sort Daolin Tang
collection DOAJ
description Abstract Across a broad range of human cancers, gain-of-function mutations in RAS genes (HRAS, NRAS, and KRAS) lead to constitutive activity of oncoproteins responsible for tumorigenesis and cancer progression. The targeting of RAS with drugs is challenging because RAS lacks classic and tractable drug binding sites. Over the past 30 years, this perception has led to the pursuit of indirect routes for targeting RAS expression, processing, upstream regulators, or downstream effectors. After the discovery that the KRAS-G12C variant contains a druggable pocket below the switch-II loop region, it has become possible to design irreversible covalent inhibitors for the variant with improved potency, selectivity and bioavailability. Two such inhibitors, sotorasib (AMG 510) and adagrasib (MRTX849), were recently evaluated in phase I-III trials for the treatment of non-small cell lung cancer with KRAS-G12C mutations, heralding a new era of precision oncology. In this review, we outline the mutations and functions of KRAS in human tumors and then analyze indirect and direct approaches to shut down the oncogenic KRAS network. Specifically, we discuss the mechanistic principles, clinical features, and strategies for overcoming primary or secondary resistance to KRAS-G12C blockade.
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spelling doaj.art-24ac5b8515ee48ada5b687fdb43084a72022-12-21T18:34:14ZengBMCMolecular Cancer1476-45982021-10-0120112410.1186/s12943-021-01422-7Oncogenic KRAS blockade therapy: renewed enthusiasm and persistent challengesDaolin Tang0Guido Kroemer1Rui Kang2The Third Affiliated Hospital, Guangzhou Medical UniversityCentre de Recherche des Cordeliers, Equipe labellisée par la Ligue contre le cancer, Université de Paris, Sorbonne Université, INSERM U1138, Institut Universitaire de FranceDepartment of Surgery, UT Southwestern Medical CenterAbstract Across a broad range of human cancers, gain-of-function mutations in RAS genes (HRAS, NRAS, and KRAS) lead to constitutive activity of oncoproteins responsible for tumorigenesis and cancer progression. The targeting of RAS with drugs is challenging because RAS lacks classic and tractable drug binding sites. Over the past 30 years, this perception has led to the pursuit of indirect routes for targeting RAS expression, processing, upstream regulators, or downstream effectors. After the discovery that the KRAS-G12C variant contains a druggable pocket below the switch-II loop region, it has become possible to design irreversible covalent inhibitors for the variant with improved potency, selectivity and bioavailability. Two such inhibitors, sotorasib (AMG 510) and adagrasib (MRTX849), were recently evaluated in phase I-III trials for the treatment of non-small cell lung cancer with KRAS-G12C mutations, heralding a new era of precision oncology. In this review, we outline the mutations and functions of KRAS in human tumors and then analyze indirect and direct approaches to shut down the oncogenic KRAS network. Specifically, we discuss the mechanistic principles, clinical features, and strategies for overcoming primary or secondary resistance to KRAS-G12C blockade.https://doi.org/10.1186/s12943-021-01422-7Gene mutationCovalent inhibitorDrug resistanceKRASTargeted therapy
spellingShingle Daolin Tang
Guido Kroemer
Rui Kang
Oncogenic KRAS blockade therapy: renewed enthusiasm and persistent challenges
Molecular Cancer
Gene mutation
Covalent inhibitor
Drug resistance
KRAS
Targeted therapy
title Oncogenic KRAS blockade therapy: renewed enthusiasm and persistent challenges
title_full Oncogenic KRAS blockade therapy: renewed enthusiasm and persistent challenges
title_fullStr Oncogenic KRAS blockade therapy: renewed enthusiasm and persistent challenges
title_full_unstemmed Oncogenic KRAS blockade therapy: renewed enthusiasm and persistent challenges
title_short Oncogenic KRAS blockade therapy: renewed enthusiasm and persistent challenges
title_sort oncogenic kras blockade therapy renewed enthusiasm and persistent challenges
topic Gene mutation
Covalent inhibitor
Drug resistance
KRAS
Targeted therapy
url https://doi.org/10.1186/s12943-021-01422-7
work_keys_str_mv AT daolintang oncogenickrasblockadetherapyrenewedenthusiasmandpersistentchallenges
AT guidokroemer oncogenickrasblockadetherapyrenewedenthusiasmandpersistentchallenges
AT ruikang oncogenickrasblockadetherapyrenewedenthusiasmandpersistentchallenges