Cited by 604HER2/EGFR in Cancer ResearchLung Cancer Treatments and MutationsCancer Mechanisms and Therapy

EGFR in Cancer: Signaling Mechanisms, Drugs, and Acquired Resistance

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Uribe, Mary Luz, Marrocco, Ilaria, Yarden, Yosef·2021·Cancers

Abstract

The epidermal growth factor receptor (EGFR) has served as the founding member of the large family of growth factor receptors harboring intrinsic tyrosine kinase function. High abundance of EGFR and large internal deletions are frequently observed in brain tumors, whereas point mutations and small insertions within the kinase domain are common in lung cancer. For these reasons EGFR and its preferred heterodimer partner, HER2/ERBB2, became popular targets of anti-cancer therapies. Nevertheless, EGFR research keeps revealing unexpected observations, which are reviewed herein. Once activated by a ligand, EGFR initiates a time-dependent series of molecular switches comprising downregulation of a large cohort of microRNAs, up-regulation of newly synthesized mRNAs, and covalent protein modifications, collectively controlling phenotype-determining genes. In addition to microRNAs, long non-coding RNAs and circular RNAs play critical roles in EGFR signaling. Along with driver mutations, EGFR drives metastasis in many ways. Paracrine loops comprising tumor and stromal cells enable EGFR to fuel invasion across tissue barriers, survival of clusters of circulating tumor cells, as well as colonization of distant organs. We conclude by listing all clinically approved anti-cancer drugs targeting either EGFR or HER2. Because emergence of drug resistance is nearly inevitable, we discuss the major evasion mechanisms.

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Authors
Uribe, M. L., Marrocco, I., & Yarden, Y.
Affiliations
Weizmann Institute of Science (IL)
Corresponding author
Yarden, Yosef
Venue
Cancers
Publisher
MDPI AG
Published
2021-06-01
Volume
13
Issue
11
Pages
2748
ISSN
2072-6694 (ISSN-L)
OpenAlex
W3169321271
Cited by
604
References
159
Citations by year
2026: 136 · 2025: 181 · 2024: 151 · 2023: 85 · 2022: 39 · 2021: 12
FWCI
8.70
Type
journal article
Language
en
Open access
Locations
  • Cancers (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • PubliCatt (Università Cattolica del Sacro Cuore) (submittedVersion, other-oa)
Funders
  • FP7 Ideas: European Research Council (740469)
  • Israel Science Foundation (1931/20)
  • Israel Cancer Research Fund (18-304-MI)
  • Samuel Waxman Cancer Research Foundation (432/2020)
  • Dr. Miriam and Sheldon G. Adelson Medical Research Foundation (15)
Topics
  • Health Sciences › Medicine › Oncology › HER2/EGFR in Cancer Research
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Lung Cancer Treatments and Mutations
  • Health Sciences › Medicine › Pathology and Forensic Medicine › Cancer Mechanisms and Therapy
Keywords
EGFR, human epidermal growth factor receptor 2, tyrosine kinase signaling, EGFR mutation, microRNA, long non-coding RNA, circular RNA, metastasis, tumor stroma, circulating tumor cells, drug resistance, anti-EGFR therapy, HER2-targeted therapy, lung cancer, brain tumors

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