Caleb B Lill, Stephen Fitter, Andrew C W Zannettino, Kate Vandyke, Jacqueline E Noll
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引用次数: 0
Abstract
Paediatric patients with relapsed B cell acute lymphoblastic leukaemia (B-ALL) have poor prognosis, as relapse-causing clones are often refractory to common chemotherapeutics. While the molecular mechanisms leading to chemoresistance are varied, significant evidence suggests interactions between B-ALL blasts and cells within the bone marrow microenvironment modulate chemotherapy sensitivity. Importantly, bone marrow mesenchymal stem cells (BM-MSCs) and BM adipocytes are known to support B-ALL cells through multiple distinct molecular mechanisms. This review discusses the contribution of integrin-mediated B-ALL/BM-MSC signalling and asparagine supplementation in B-ALL chemoresistance. In addition, the role of adipocytes in sequestering anthracyclines and generating a BM niche favourable for B-ALL survival is explored. Furthermore, this review discusses the role of BM-MSCs and adipocytes in promoting a quiescent and chemoresistant B-ALL phenotype. Novel treatments which target these mechanisms are discussed herein, and are needed to improve dismal outcomes in patients with relapsed/refractory disease.
期刊介绍:
Contemporary biomedical research is on the threshold of an era in which physiological and pathological processes can be analyzed in increasingly precise and mechanistic terms.The transformation of biology from a largely descriptive, phenomenological discipline to one in which the regulatory principles can be understood and manipulated with predictability brings a new dimension to the study of cancer and the search for effective therapeutic modalities for this disease. Cancer and Metastasis Reviews provides a forum for critical review and discussion of these challenging developments.
A major function of the journal is to review some of the more important and interesting recent developments in the biology and treatment of malignant disease, as well as to highlight new and promising directions, be they technological or conceptual. Contributors are encouraged to review their personal work and be speculative.