Publications by authors named "Jean-Gerard Descamps"

The therapeutic potential of bone marrow mesenchymal stromal cells (bmMSCs) to address heart failure needs improvement for better engraftment and survival. This study explores the role of metabolic sorting for human bmMSCs in coculture in vitro and on doxorubicin-induced heart failure mice models. Using functional, epigenetic, and gene expression approaches on cells sorted for mitochondrial membrane potential in terms of their metabolic status, we demonstrated that bmMSCs selected for their glycolytic metabolism presented proliferative advantage and resistance to oxidative stress thereby favoring cell engraftment.

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Article Synopsis
  • Bone marrow mesenchymal stromal cells (MSCs) in multiple myeloma (MM) are abnormal and promote tumor growth and drug resistance through higher expression of Toll-like receptor 4 (TLR4).
  • Activation of TLR4 in MM MSCs enhances factors like CD54 and interleukin-6 (IL-6), which facilitate communication between MSCs and MM cells, impacting disease progression.
  • Targeting TLR4 with antagonists shows promise in reducing MM cell growth support from MSCs and delaying disease progression in mouse models, suggesting a potential therapeutic strategy.
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Multiple myeloma (MM) is an incurable B cell neoplasia characterized by the accumulation of tumor plasma cells within the bone marrow (BM). As a consequence, bone osteolytic lesions develop in 80% of patients and remain even after complete disease remission. We and others had demonstrated that BM-derived mesenchymal stromal cells (MSCs) are abnormal in MM and thus cannot be used for autologous treatment to repair bone damage.

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Human adipose-derived stem/stromal cells (hASCs) can differentiate into specialized cell types and thereby contribute to tissue regeneration. As such, hASCs have drawn increasing attention in cell therapy and regenerative medicine, not to mention the ease to isolate them from donors. Culture conditions are critical for expanding hASCs while maintaining optimal therapeutic capabilities.

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