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Author Spotlight: Analyzing Bone Marrow Microenvironment in Murine Hematological Malignancies
Published on: November 10, 2023
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Signaling pathways and bone marrow microenvironment in myelodysplastic neoplasms
Eleonora Ceneri1, Alessia De Stefano1, Irene Casalin1
1Department of Biomedical and Neuromotor Sciences, Cellular Signaling Laboratory, University of Bologna, Bologna, 40126, Italy.
Advances in Biological Regulation
|December 8, 2024
Summary
Key signaling pathways in the bone marrow microenvironment (BMM) drive Myelodysplastic Neoplasms (MDS) progression by altering interactions between Mesenchymal Stromal Cells (MSCs) and Hematopoietic Stem Cells (HSCs). Targeting these pathways offers potential therapeutic strategies for MDS.
Area of Science:
- Hematology
- Cell Biology
- Oncology
Background:
- Myelodysplastic Neoplasms (MDS) are a group of clonal hematopoietic stem cell disorders.
- The bone marrow microenvironment (BMM) plays a critical role in MDS pathogenesis.
- Specific signaling pathways within the BMM are implicated in MDS progression.
Purpose of the Study:
- To review the role of key signaling pathways in the BMM in MDS.
- To elucidate how these pathways affect Mesenchymal Stromal Cells (MSCs) and Hematopoietic Stem Cells (HSCs).
- To identify potential therapeutic targets for MDS.
Main Methods:
- Literature review of signaling pathways in the BMM.
- Analysis of the roles of Notch, PI-PLCs, TGF-β, and NF-κB in MDS.
- Examination of MSC-HSC interactions within the MDS microenvironment.
Main Results:
- Notch and PI-PLC signaling mediate intercellular communication.
- TGF-β signaling promotes HSC quiescence and suppresses hematopoiesis.
- NF-κB signaling contributes to an inflammatory microenvironment detrimental to hematopoiesis.
Conclusions:
- Aberrant signaling pathways in the BMM are central to MDS development and progression.
- These pathways disrupt normal hematopoiesis by altering MSC-HSC interactions.
- Targeting these signaling pathways presents a promising therapeutic avenue for MDS.
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