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The antitumor effects of WNT5A against hematological malignancies

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Journal of Cell Communication and Signaling Aims and scope

Abstract

The bone marrow (BM) microenvironment (niche) is abnormally altered in acute myeloid leukemia (AML), leading to deficient secretion of proteins, soluble factors, and cytokines by mesenchymal stromal cells (MSC) that modifies the crosstalk between MSC and hematopoietic cells. We focused on a WNT gene/protein family member, WNT5A, which is downregulated in leukemia and correlated with disease progression and poor prognosis. We demonstrated that WNT5A protein upregulated the WNT non-canonical pathway only in leukemic cells, without modulating normal cell behavior. We also introduced a novel WNT5A-mimicking compound, Foxy-5. Our results showed reduction of crucial biological functions that are upregulated in leukemia cells, including ROS generation, cell proliferation, and autophagy, as well as G0/G1 cell cycle arrest. Additionally, Foxy-5 induced early-stage macrophage cell differentiation, a crucial process during leukemia development. At a molecular level, Foxy-5 led to the downregulation of two overexpressed leukemia pathways, PI3K and MAPK, which resulted in a disarrangement of actin polymerization with consequent impairment of CXCL12-induced chemotaxis. Notably, in a novel tri-dimensional bone marrow-mimicking model, Foxy-5 led to reduced leukemia cell growth and similar results were observed in a xenograft in vivo model. Overall, our findings highlight the pivotal role of WNT5A in leukemia and demonstrate that Foxy-5 acts as a specific antineoplastic agent in leukemia, counterbalancing several leukemic oncogenic processes related to the crosstalk in the bone marrow niche, and represents a promising therapeutic option for AML.

Graphical abstract

WNT5A, a WNT gene/protein family member, is naturally secreted by mesenchymal stromal cells and contributes to the maintenance of the bone marrow microenvironment. WNT5A downregulation is correlated with disease progression and poor prognosis. The treatment with Foxy-5, a WNT5A mimetizing compound, counterbalanced several leukemogenic processes that are upregulated in leukemia cells, including ROS generation, cell proliferation, and autophagy and disruption of PI3K and MAPK signaling pathways.

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Data availability

The datasets generated during and/or analyzed during the current study are available from the corresponding author on reasonable request. All data generated or analyzed during this study are included in this published article and its supplementary information files.

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Acknowledgements

The authors would like to thank WntResearch AB, Sweden for providing the WNT5A mimicking peptide Foxy-5 and valuable information as to how it should be used; Raquel S Foglio (Hematology and Transfusion Medicine Center, University of Campinas, São Paulo, Brazil) for the English revision; Irene Santos and Nadia Ghinelli Âmor (Hematology and Transfusion Medicine Center, University of Campinas, São Paulo, Brazil) for flow cytometry assistance; Karla Priscila Ferro for in vivo assay assistance; and Mariana Ozello Baratti for microscopy assistance. We also thank the National Institute of Science and Technology on Photonics Applied to Cell Biology (INFABIC) at UNICAMP for the access to equipment and confocal assistance and analysis (FAPESP grants 2014/50938-8 and CNPq grants 465699/2014-6) and the Hemostasis Laboratory of Hematology and Transfusion Medicine Center (FAPESP grants 2016/14172-6) at UNICAMP for cell proliferation analysis by IncuCyte S3 System (Sartorius). The authors also thank CNPq and FAPESP for the financial support.

Funding

This study was funded by grants from the Fundação de Amparo a Pesquisa do Estado de São Paulo (FAPESP grants 2017/21801-2, 2019/25247-5 and 2021/05320-0) and Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) (Grants 303405/2018-0).

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Contributions

FMR and MLPB designed and performed the experiments, collecting, analyzing and interpreting data, and writing the manuscript; STOS provided financial support, revised and gave final approval of the manuscript. All authors have read, commented, and approved the final version of the manuscript.

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Correspondence to Fernanda Marconi Roversi.

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The authors declare no competing financial interests.

Ethical approval

The study was approved by the Human Ethics Committee of the University (CAAE 45254321.7.0000.5404 and CAAE 1110.0.146.000- 11), in accordance with the Code of Ethics of the World Medical Association (Declaration of Helsinki).

Human and animal rights

Written informed consent was obtained from the patient(s) for their anonymized information to be published in this article. All patients signed informed consent forms. The study was approved by the Institutional Animal Experimentation Ethics Committee of the University of Campinas (5750-1/2021). All procedures were carried out in accordance with the National Institutes of Health Guide for the Care and Use of Laboratory Animals.

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All authors agreed with the content and gave explicit consent. A consent from the responsible authorities at the Hematology and Transfusion Medicine Center/University of Campinas has been carried out.

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Bueno, M.L.P., Saad, S.T.O. & Roversi, F.M. The antitumor effects of WNT5A against hematological malignancies. J. Cell Commun. Signal. 17, 1487–1499 (2023). https://doi.org/10.1007/s12079-023-00773-8

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  • DOI: https://doi.org/10.1007/s12079-023-00773-8

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