Role of bone marrow adipocytes in leukemia and chemotherapy challenges.
Azin SamimiMajid GhanavatSaeid ShahrabiShirin AzizidoostNajmaldin SakiPublished in: Cellular and molecular life sciences : CMLS (2019)
Adipose tissue (AT) is an extramedullary reservoir of normal hematopoietic stem cells (HSCs). Adipocytes prevent the production of normal HSCs via secretion of inflammatory factors, and adipocyte-derived free fatty acids may contribute to the development and progression of leukemia via providing energy for leukemic cells. In addition, adipocytes are able to metabolize and inactivate therapeutic agents, reducing the concentrations of active drugs in adipocyte-rich microenvironments. The aim of this study was to detect the role of adipocytes in the progression and treatment of leukemia. Relevant literature was identified through a PubMed search (2000-2018) of English-language papers using the following terms: leukemia, adipocyte, leukemic stem cell, chemotherapy, and bone marrow. Findings suggest the striking interplay between leukemic cells and adipocytes to create a unique microenvironment supporting the metabolic demands and survival of leukemic cells. Based on these findings, targeting lipid metabolism of leukemic cells and adipocytes in combination with standard therapeutic agents might present novel treatment options.
Keyphrases
- adipose tissue
- bone marrow
- stem cells
- acute myeloid leukemia
- induced apoptosis
- cell cycle arrest
- insulin resistance
- high fat diet
- signaling pathway
- endoplasmic reticulum stress
- metabolic syndrome
- systematic review
- cell death
- rectal cancer
- cancer therapy
- locally advanced
- pi k akt
- cell proliferation
- replacement therapy