The Importance of Being PI3K in the RAS Signaling Network

Ras proteins are essential mediators of a multitude of cellular processes, and its deregulation is frequently associated with cancer appearance, progression, and metastasis. Ras-driven cancers are usually aggressive and difficult to treat. Although the recent Food and Drug Administration (FDA) appro...

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Main Authors: Cristina Cuesta, Cristina Arévalo-Alameda, Esther Castellano
Format: Article
Language:English
Published: MDPI AG 2021-07-01
Series:Genes
Subjects:
Online Access:https://www.mdpi.com/2073-4425/12/7/1094
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author Cristina Cuesta
Cristina Arévalo-Alameda
Esther Castellano
author_facet Cristina Cuesta
Cristina Arévalo-Alameda
Esther Castellano
author_sort Cristina Cuesta
collection DOAJ
description Ras proteins are essential mediators of a multitude of cellular processes, and its deregulation is frequently associated with cancer appearance, progression, and metastasis. Ras-driven cancers are usually aggressive and difficult to treat. Although the recent Food and Drug Administration (FDA) approval of the first Ras G12C inhibitor is an important milestone, only a small percentage of patients will benefit from it. A better understanding of the context in which Ras operates in different tumor types and the outcomes mediated by each effector pathway may help to identify additional strategies and targets to treat Ras-driven tumors. Evidence emerging in recent years suggests that both oncogenic Ras signaling in tumor cells and non-oncogenic Ras signaling in stromal cells play an essential role in cancer. PI3K is one of the main Ras effectors, regulating important cellular processes such as cell viability or resistance to therapy or angiogenesis upon oncogenic Ras activation. In this review, we will summarize recent advances in the understanding of Ras-dependent activation of PI3K both in physiological conditions and cancer, with a focus on how this signaling pathway contributes to the formation of a tumor stroma that promotes tumor cell proliferation, migration, and spread.
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spelling doaj.art-dc53251f09864d928b037b07776529cf2023-11-22T03:51:32ZengMDPI AGGenes2073-44252021-07-01127109410.3390/genes12071094The Importance of Being PI3K in the RAS Signaling NetworkCristina Cuesta0Cristina Arévalo-Alameda1Esther Castellano2Tumour-Stroma Signalling Laboratory, Centro de Investigación del Cáncer, Instituto de Biología Molecular y Celular del Cáncer, Consejo Superior de Investigaciones Científicas (CSIC)-Universidad de Salamanca, Campus Miguel de Unamuno, 37007 Salamanca, SpainTumour-Stroma Signalling Laboratory, Centro de Investigación del Cáncer, Instituto de Biología Molecular y Celular del Cáncer, Consejo Superior de Investigaciones Científicas (CSIC)-Universidad de Salamanca, Campus Miguel de Unamuno, 37007 Salamanca, SpainTumour-Stroma Signalling Laboratory, Centro de Investigación del Cáncer, Instituto de Biología Molecular y Celular del Cáncer, Consejo Superior de Investigaciones Científicas (CSIC)-Universidad de Salamanca, Campus Miguel de Unamuno, 37007 Salamanca, SpainRas proteins are essential mediators of a multitude of cellular processes, and its deregulation is frequently associated with cancer appearance, progression, and metastasis. Ras-driven cancers are usually aggressive and difficult to treat. Although the recent Food and Drug Administration (FDA) approval of the first Ras G12C inhibitor is an important milestone, only a small percentage of patients will benefit from it. A better understanding of the context in which Ras operates in different tumor types and the outcomes mediated by each effector pathway may help to identify additional strategies and targets to treat Ras-driven tumors. Evidence emerging in recent years suggests that both oncogenic Ras signaling in tumor cells and non-oncogenic Ras signaling in stromal cells play an essential role in cancer. PI3K is one of the main Ras effectors, regulating important cellular processes such as cell viability or resistance to therapy or angiogenesis upon oncogenic Ras activation. In this review, we will summarize recent advances in the understanding of Ras-dependent activation of PI3K both in physiological conditions and cancer, with a focus on how this signaling pathway contributes to the formation of a tumor stroma that promotes tumor cell proliferation, migration, and spread.https://www.mdpi.com/2073-4425/12/7/1094Ras oncogenesPI3-Kinase
spellingShingle Cristina Cuesta
Cristina Arévalo-Alameda
Esther Castellano
The Importance of Being PI3K in the RAS Signaling Network
Genes
Ras oncogenes
PI3-Kinase
title The Importance of Being PI3K in the RAS Signaling Network
title_full The Importance of Being PI3K in the RAS Signaling Network
title_fullStr The Importance of Being PI3K in the RAS Signaling Network
title_full_unstemmed The Importance of Being PI3K in the RAS Signaling Network
title_short The Importance of Being PI3K in the RAS Signaling Network
title_sort importance of being pi3k in the ras signaling network
topic Ras oncogenes
PI3-Kinase
url https://www.mdpi.com/2073-4425/12/7/1094
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