Cytokine-Mediated Dysregulation of Signaling Pathways in the Pathogenesis of Multiple Myeloma.

Abstract

Multiple myeloma (MM) is a hematologic disorder of B lymphocytes characterized by the accumulation of malignant plasma cells (PCs) in the bone marrow. The altered plasma cells overproduce abnormal monoclonal immunoglobulins and also stimulate osteoclasts. The host's immune system and microenvironment are of paramount importance in the growth of PCs and, thus, in the pathogenesis of the disease. The interaction of MM cells with the bone marrow (BM) microenvironment through soluble factors and cell adhesion molecules causes pathogenesis of the disease through activation of multiple signaling pathways, including NF-κβ, PI3K/AKT and JAK/STAT. These activated pathways play a critical role in the inhibition of apoptosis, sustained proliferation, survival and migration of MM cells. Besides, these pathways also participate in developing resistance against the chemotherapeutic drugs in MM. The imbalance between inflammatory and anti-inflammatory cytokines in MM leads to an increased level of pro-inflammatory cytokines, which in turn play a significant role in dysregulation of signaling pathways and proliferation of MM cells; however, the association appears to be inadequate and needs more research. In this review, we are highlighting the recent findings on the roles of various cytokines and growth factors in the pathogenesis of MM and the potential therapeutic utility of aberrantly activated signaling pathways to manage the MM disease.

• Authors: Sabah Akhtar, Tayyiba A Ali, Ammara Faiyaz, Omar S Khan, Syed Shadab Raza, Michal Kulinski, Halima El Omri, Ajaz A Bhat, Shahab Uddin
• Journal: International journal of molecular sciences (Int J Mol Sci) Vol. 21 Issue 14 (Jul 15 2020) ISSN: 1422-0067 [Electronic] Switzerland
• PMID: 32679860 (Publication Type: Journal Article, Review)

Chemical References

• Cytokines

Topics

• Animals
• Bone Marrow (immunology, metabolism, pathology)
• Cell Proliferation
• Cytokines (analysis, immunology, metabolism)
• Humans
• Inflammation (immunology, metabolism, pathology)
• Multiple Myeloma (immunology, metabolism, pathology)
• Neoplasm Invasiveness (immunology, pathology)
• Plasma Cells (immunology, metabolism, pathology)
• Signal Transduction
• Tumor Escape
• Tumor Microenvironment