VEGFC Antibody Therapy Drives Differentiation of AML.

Cancer Res

Division of Pediatric Oncology/Hematology, Department of Pediatrics, Beatrix Children's Hospital, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands.

Published: October 2018

High expression of VEGFC predicts adverse prognosis in acute myeloid leukemia (AML). We therefore explored VEGFC-targeting efficacy as an AML therapy using a VEGFC mAb. VEGFC antibody therapy enforced myelocytic differentiation of clonal CD34 AML blasts. Treatment of CD34 AML blasts with the antibody reduced expansion potential by 30% to 50% and enhanced differentiation via FOXO3A suppression and inhibition of MAPK/ERK proliferative signals. VEGFC antibody therapy also accelerated leukemia cell differentiation in a systemic humanized AML mouse model. Collectively, these results define a regulatory function of VEGFC in CD34 AML cell fate decisions via FOXO3A and serve as a new potential differentiation therapy for patients with AML. These findings reveal VEGFC targeting as a promising new differentiation therapy in AML. .

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http://dx.doi.org/10.1158/0008-5472.CAN-18-0250DOI Listing

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