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Front Pharmacol. 2017 Apr 26;8:204. doi: 10.3389/fphar.2017.00204. eCollection 2017.

Proteomic Analysis Reveals Autophagy as Pro-Survival Pathway Elicited by Long-Term Exposure with 5-Azacitidine in High-Risk Myelodysplasia.

Frontiers in pharmacology

Alessandra Romano, Cesarina Giallongo, Piera La Cava, Nunziatina L Parrinello, Antonella Chiechi, Calogero Vetro, Daniele Tibullo, Francesco Di Raimondo, Lance A Liotta, Virginia Espina, Giuseppe A Palumbo

Affiliations

  1. Divisione di Ematologia, Azienda Ospedaliera Policlinico UniversitariaCatania, Italy.
  2. Scuola Superiore di CataniaCatania, Italy.
  3. Center for Applied Proteomics and Molecular Medicine, George Mason UniversityManassas, VA, USA.

PMID: 28491035 PMCID: PMC5405131 DOI: 10.3389/fphar.2017.00204

Abstract

Azacytidine (5-AZA) is the standard first-choice treatment for high-risk myelodysplasia (MDS) patients. However, the clinical outcome for those patients who interrupt treatment or whose disease failed to respond is very poor. In order to identify the cellular pathways that are modified by long-term exposure to 5-AZA, we evaluated key proteins associated with the autophagy pathway by reverse-phase microarray (RPPA). Comparing bone marrow mononucleated cells (BMMCs) obtained from 20 newly-diagnosed patients and after four 5-AZA cycles we found an increased autophagy signaling. We then evaluated

Keywords: autophagy; azacytidine; myelodysplastic syndrome

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