scholarly journals The Yin and Yang of the Bone Marrow Microenvironment: Pros and Cons of Mesenchymal Stromal Cells in Acute Myeloid Leukemia

2019 ◽  
Vol 9 ◽  
Author(s):  
Marilena Ciciarello ◽  
Giulia Corradi ◽  
Federica Loscocco ◽  
Giuseppe Visani ◽  
Federica Monaco ◽  
...  
2019 ◽  
Vol 60 (8) ◽  
pp. 2042-2049
Author(s):  
Irina N. Shipounova ◽  
Nataliya A. Petinati ◽  
Alexey E. Bigildeev ◽  
Tamara V. Sorokina ◽  
Larisa A. Kuzmina ◽  
...  

Leukemia ◽  
2016 ◽  
Vol 31 (5) ◽  
pp. 1069-1078 ◽  
Author(s):  
E K von der Heide ◽  
M Neumann ◽  
S Vosberg ◽  
A R James ◽  
M P Schroeder ◽  
...  

Oncogene ◽  
2019 ◽  
Vol 39 (10) ◽  
pp. 2227-2227 ◽  
Author(s):  
Farah Kouzi ◽  
Kazem Zibara ◽  
Jerome Bourgeais ◽  
Frederic Picou ◽  
Nathalie Gallay ◽  
...  

The original version of this Article omitted the following from the Acknowledgements: This research was also supported by grants to KZ (UL and L-CNRS). This has now been corrected in both the PDF and HTML versions of the Article.


2012 ◽  
Vol 2012 ◽  
pp. 1-4 ◽  
Author(s):  
Pamela S. Becker

Acute myeloid leukemia (AML) cells home to the endosteal region of the bone marrow. They interact with bone marrow stromal components including extracellular matrix proteins, glycosaminoglycans, and stromal cells, by which they derive proliferative and growth inhibitory signals. Furthermore, adhesion to marrow stroma confers chemotherapy drug resistance and thereby promotes leukemia survival. A subpopulation of the leukemic blasts, known as leukemia stem cells, that are capable of propagating the leukemia, remain sheltered in the bone marrow microenvironment, exhibit resistance to chemotherapy, and serve as the origin of relapse after a variable period of remission. Detachment of these cells from the bone marrow in combination with chemotherapy may improve the outcome of therapy for AML.


Oncogene ◽  
2019 ◽  
Vol 39 (6) ◽  
pp. 1198-1212
Author(s):  
Farah Kouzi ◽  
Kazem Zibara ◽  
Jerome Bourgeais ◽  
Frederic Picou ◽  
Nathalie Gallay ◽  
...  

Abstract The bone marrow (BM) niche impacts the progression of acute myeloid leukemia (AML) by favoring the chemoresistance of AML cells. Intimate interactions between leukemic cells and BM mesenchymal stromal cells (BM-MSCs) play key roles in this process. Direct intercellular communications between hematopoietic cells and BM-MSCs involve connexins, components of gap junctions. We postulated that blocking gap junction assembly could modify cell–cell interactions in the leukemic niche and consequently the chemoresistance. The comparison of BM-MSCs from AML patients and healthy donors revealed a specific profile of connexins in BM-MSCs of the leukemic niche and the effects of carbenoxolone (CBX), a gap junction disruptor, were evaluated on AML cells. CBX presents an antileukemic effect without affecting normal BM-CD34+ progenitor cells. The proapoptotic effect of CBX on AML cells is in line with the extinction of energy metabolism. CBX acts synergistically with cytarabine (Ara-C) in vitro and in vivo. Coculture experiments of AML cells with BM-MSCs revealed that CBX neutralizes the protective effect of the niche against the Ara-C-induced apoptosis of leukemic cells. Altogether, these results suggest that CBX could be of therapeutic interest to reduce the chemoresistance favored by the leukemic niche, by targeting gap junctions, without affecting normal hematopoiesis.


2017 ◽  
Vol 26 (10) ◽  
pp. 709-722 ◽  
Author(s):  
Laura Desbourdes ◽  
Joaquim Javary ◽  
Thomas Charbonnier ◽  
Nicole Ishac ◽  
Jerome Bourgeais ◽  
...  

2021 ◽  
Vol 22 (13) ◽  
pp. 6857
Author(s):  
Samantha Bruno ◽  
Manuela Mancini ◽  
Sara De Santis ◽  
Cecilia Monaldi ◽  
Michele Cavo ◽  
...  

Acute myeloid leukemia (AML) is a hematologic malignancy caused by a wide range of alterations responsible for a high grade of heterogeneity among patients. Several studies have demonstrated that the hypoxic bone marrow microenvironment (BMM) plays a crucial role in AML pathogenesis and therapy response. This review article summarizes the current literature regarding the effects of the dynamic crosstalk between leukemic stem cells (LSCs) and hypoxic BMM. The interaction between LSCs and hypoxic BMM regulates fundamental cell fate decisions, including survival, self-renewal, and proliferation capacity as a consequence of genetic, transcriptional, and metabolic adaptation of LSCs mediated by hypoxia-inducible factors (HIFs). HIF-1α and some of their targets have been associated with poor prognosis in AML. It has been demonstrated that the hypoxic BMM creates a protective niche that mediates resistance to therapy. Therefore, we also highlight how hypoxia hallmarks might be targeted in the future to hit the leukemic population to improve AML patient outcomes.


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