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Front Genet. 2014 Jul 22;5:236. doi: 10.3389/fgene.2014.00236. eCollection 2014.

ARF: a versatile DNA damage response ally at the crossroads of development and tumorigenesis.

Frontiers in genetics

Athanassios Kotsinas, Panagiota Papanagnou, Konstantinos Evangelou, George C Trigas, Vassiliki Kostourou, Paul Townsend, Vassilis G Gorgoulis

Affiliations

  1. Molecular Carcinogenesis Group, Department of Histology and Embryology, School of Medicine, University of Athens Athens, Greece.
  2. Vascular Adhesion Lab, Biomedical Sciences Research Center Alexander Fleming Athens, Greece.
  3. Faculty Institute of Cancer Sciences, University of Manchester, Manchester Academic Health Science Centre Manchester, UK ; Manchester Centre for Cellular Metabolism, University of Manchester, Manchester Academic Health Science Centre Manchester, UK.
  4. Molecular Carcinogenesis Group, Department of Histology and Embryology, School of Medicine, University of Athens Athens, Greece ; Faculty Institute of Cancer Sciences, University of Manchester, Manchester Academic Health Science Centre Manchester, UK ; Manchester Centre for Cellular Metabolism, University of Manchester, Manchester Academic Health Science Centre Manchester, UK ; Biomedical Research Foundation, Academy of Athens Athens, Greece.

PMID: 25101116 PMCID: PMC4106421 DOI: 10.3389/fgene.2014.00236

Abstract

Alternative reading frame (ARF) is a tumor suppressor protein that senses oncogenic and other stressogenic signals. It can trigger p53-dependent and -independent responses with cell cycle arrest and apoptosis induction being the most prominent ones. Other ARF activities, particularly p53-independent ones, that could help in understanding cancer development and provide potential therapeutic exploitation are underrated. Although ARF is generally not expressed in normal tissues, it is essential for ocular and male germ cells development. The underlying mechanism(s) in these processes, while not clearly defined, point toward a functional link between ARF, DNA damage and angiogenesis. Based on a recent study from our group demonstrating a functional interplay between ataxia-telangiectasia mutated (ATM) and ARF during carcinogenesis, we discuss the role of ARF at the crossroads of cancer and developmental processes.

Keywords: ARF; ATM; angiogenesis; involution; meiosis; ocular development; spermatogenesis; vascular network

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