Multiple myeloma (MM) is a malignancy of terminally differentiated monoclonal B cells, which is characterized by the presentation of malignant plasma cell within the bone marrow and the secretion of monoclonal immunoglobulin. Extramedullary disease (EMD) may be found either at diagnosis or during therapy of these patients. For the patients with EMD, the response to conventional chemotherapy is poor and the prognosis is unfavorable. This review mainly discusses the research progress in the pathogenesis, the clinical feature, the therapy and the prognosis of MM with EMD.
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| http://dx.doi.org/10.7534/j.issn.1009-2137.2016.03.057 | DOI Listing |
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Identification of USP2 as a novel target to induce degradation of KRAS in myeloma cells.
Acta Pharm Sin B
December 2024
Hongqiao International Institute of Medicine, Shanghai Tongren Hospital/Faculty of Basic Medicine, Chemical Biology Division of Shanghai Universities E-Institutes, Key Laboratory of Cell Differentiation and Apoptosis of the Chinese Ministry of Education, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China.
Inducing the degradation of KRAS represents a novel strategy to combat cancers with KRAS mutation. In this study, we identify ubiquitin-specific protease 2 (USP2) as a novel deubiquitinating enzyme of KRAS in multiple myeloma (MM). Specifically, we demonstrate that gambogic acid (GA) forms a covalent bond with the cysteine 284 residue of USP2 through an allosteric pocket, inhibiting its deubiquitinating activity.
View Article and Find Full Text PDFTargeting deubiquitinase USP7-mediated stabilization of XPO1 contributes to the anti-myeloma effects of selinexor.
J Transl Med
January 2025
Department of Hematology, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200127, China.
Background: Targeting exportin1 (XPO1) with Selinexor (SEL) is a promising therapeutic strategy for patients with multiple myeloma (MM). However, intrinsic and acquired drug resistance constitute great challenges. SEL has been reported to promote the degradation of XPO1 protein in tumor cells.
View Article and Find Full Text PDFEngineered T cells secreting αB7-H3-αCD3 bispecific engagers for enhanced anti-tumor activity against B7-H3 positive multiple myeloma: a novel therapeutic approach.
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Siriraj Center of Research Excellence for Cancer Immunotherapy (SiCORE-CIT), Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand.
Background: Multiple myeloma (MM) is an incurable plasma cell malignancy with increasing global incidence. Chimeric antigen receptor (CAR) T-cell therapy targeting BCMA has shown efficacy in relapsed or refractory MM, but it faces resistance due to antigen loss and the tumor microenvironment. Bispecific T-cell engaging (BITE) antibodies also encounter clinical challenges, including short half-lives requiring continuous infusion and potential toxicities.
View Article and Find Full Text PDFSearching for the minimum required dose of daratumumab to induce effective plasma cell depletion in antibody-mediated rejection of the kidney graft: a case report.
J Nephrol
January 2025
Renal Transplant Unit, Department of Nephrology and Kidney Transplantation, Hospital Clínic of Barcelona, Carrer Villaroel 170, 08036, Barcelona, Spain.
There is no established treatment for late or chronic antibody-mediated rejection of a kidney graft. Rituximab-based treatment is not effective, since long-lived high-affinity plasma cells do not express CD20 and do not depend on previous maturation steps to generate donor-specific antibodies. Conversely, daratumumab, an anti-CD38 monoclonal antibody, directly targets plasma cells, with proven efficacy in multiple myeloma.
View Article and Find Full Text PDFThe prognostic value of the platelet-to-lymphocyte ratio in multiple myeloma patients treated with a bortezomib-based regimen.
Sci Rep
January 2025
Department of Hematology, The Affiliated Huaian No. 1 People's Hospital of Nanjing Medical University, Huaian, China.
Multiple myeloma (MM) is the second most common hematological malignancy. Previous studies have validated the prognostic significance of the platelet-to-lymphocyte ratio (PLR) in patients with certain solid tumors. However, the relationship between the PLR and prognosis in myeloma patients has not been clearly demonstrated.
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