BRAF inhibitors reverse the unique molecular signature and phenotype of hairy cell leukemia and exert potent antileukemic activity

Author:

Pettirossi Valentina1,Santi Alessia1,Imperi Elisa1,Russo Guido1,Pucciarini Alessandra1,Bigerna Barbara1,Schiavoni Gianluca1,Fortini Elisabetta1,Spanhol-Rosseto Ariele1,Sportoletti Paolo1,Mannucci Roberta2,Martelli Maria Paola1,Klein-Hitpass Ludger3,Falini Brunangelo1,Tiacci Enrico1

Affiliation:

1. Institute of Hematology, and

2. Institute of Internal Medicine and Oncologic Sciences, University of Perugia, Perugia, Italy; and

3. Biochip Laboratory, Institute for Cell Biology–Tumor Research, University of Duisburg-Essen, Essen, Germany

Abstract

Key Points The V600E kinase-activating mutation of BRAF profoundly shapes the distinct identity of HCL among B-cell neoplasms. Clinically available BRAF and MEK inhibitors exert potent antileukemic activity in patients’ HCL cells in vitro and in vivo.

Publisher

American Society of Hematology

Subject

Cell Biology,Hematology,Immunology,Biochemistry

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