TY - JOUR
T1 - Microenvironmental regulation of the IL-23R/IL-23 axis overrides chronic lymphocytic leukemia indolence
AU - Cutrona, Giovanna
AU - Tripodo, Claudio
AU - Matis, Serena
AU - Recchia, Anna Grazia
AU - Massucco, Carlotta
AU - Fabbi, Marina
AU - Colombo, Monica
AU - Emionite, Laura
AU - Sangaletti, Sabina
AU - Gulino, Alessandro
AU - Reverberi, Daniele
AU - Massara, Rosanna
AU - Boccardo, Simona
AU - de Totero, Daniela
AU - Salvi, Sandra
AU - Cilli, Michele
AU - Pellicanò, Mariavaleria
AU - Manzoni, Martina
AU - Fabris, Sonia
AU - Airoldi, Irma
AU - Valdora, Francesca
AU - Ferrini, Silvano
AU - Gentile, Massimo
AU - Vigna, Ernesto
AU - Bossio, Sabrina
AU - De Stefano, Laura
AU - Palummo, Angela
AU - Iaquinta, Giovanni
AU - Cardillo, Martina
AU - Zupo, Simonetta
AU - Cerruti, Giannamaria
AU - Ibatici, Adalberto
AU - Neri, Antonino
AU - Fais, Franco
AU - Ferrarini, Manlio
AU - Morabito, Fortunato
N1 - Copyright © 2018 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works.
PY - 2018/2/14
Y1 - 2018/2/14
N2 - Although the progression of chronic lymphocytic leukemia (CLL) requires the cooperation of the microenvironment, the exact cellular and molecular mechanisms involved are still unclear. We investigated the interleukin (IL)-23 receptor (IL-23R)/IL-23 axis and found that circulating cells from early-stage CLL patients with shorter time-to-treatment, but not of those with a more benign course, expressed a defective form of the IL-23R complex lacking the IL-12Rβ1 chain. However, cells from both patient groups expressed the complete IL-23R complex in tissue infiltrates and could be induced to express the IL-12Rβ1 chain when cocultured with activated T cells or CD40L+ cells. CLL cells activated in vitro in this context produced IL-23, a finding that, together with the presence of IL-23 in CLL lymphoid tissues, suggests the existence of an autocrine/paracrine loop inducing CLL cell proliferation. Interference with the IL-23R/IL-23 axis using an anti-IL-23p19 antibody proved effective in controlling disease onset and expansion in xenografted mice, suggesting potential therapeutic strategies.
AB - Although the progression of chronic lymphocytic leukemia (CLL) requires the cooperation of the microenvironment, the exact cellular and molecular mechanisms involved are still unclear. We investigated the interleukin (IL)-23 receptor (IL-23R)/IL-23 axis and found that circulating cells from early-stage CLL patients with shorter time-to-treatment, but not of those with a more benign course, expressed a defective form of the IL-23R complex lacking the IL-12Rβ1 chain. However, cells from both patient groups expressed the complete IL-23R complex in tissue infiltrates and could be induced to express the IL-12Rβ1 chain when cocultured with activated T cells or CD40L+ cells. CLL cells activated in vitro in this context produced IL-23, a finding that, together with the presence of IL-23 in CLL lymphoid tissues, suggests the existence of an autocrine/paracrine loop inducing CLL cell proliferation. Interference with the IL-23R/IL-23 axis using an anti-IL-23p19 antibody proved effective in controlling disease onset and expansion in xenografted mice, suggesting potential therapeutic strategies.
U2 - 10.1126/scitranslmed.aal1571
DO - 10.1126/scitranslmed.aal1571
M3 - Article
C2 - 29444977
SN - 1946-6234
VL - 10
JO - Science Translational Medicine
JF - Science Translational Medicine
IS - 428
ER -