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Prognostic Relevance of Concordant Expression CD69 and CD56 in Response to Bortezomib Combination Therapy in Multiple Myeloma Patients
Faculty
Medicine
Year:
2021
Type of Publication:
ZU Hosted
Pages:
Authors:
Mohammed Issa Mohamed Sayed Ahmed
Staff Zu Site
Abstract In Staff Site
Journal:
Cancer Investigation Taylor & Francis
Volume:
Keywords :
Prognostic Relevance , Concordant Expression CD69 , CD56 , Response
Abstract:
Objective: Multiple myeloma is an incurable hematological malignancy. Currently, the use of proteasome inhibitors could be superior to chemotherapy-based regimen in the treatment of this disease. However, resistance to bortezomib combination therapy still occurs in some patients. So, this research work aims to assess CD69 and CD56 expression in these cases and their relation to the response to therapy. Materials and Methods: Immunophenotyping by 4-color multi-parameter flow cytometry was carried out on 98 multiple myeloma cases. Clonal plasma cells were gated by co-expression of CD38 with CD138 with low SSC, negative or dim CD45. Results: Double negative CD69 and CD56 (47.9%) multiple myeloma cases were associated with high serum b2 microglobulin, creatinine, calcium and low serum albumin. There was also a significant correlation between the absence of these markers with osteolytic lesions and unfavorable cytogenetic t (4;14) (p < 0.001). Moreover, there was a highly significant correlation between CD69- and CD56- with non-response to bortezomib combination therapy in multiple myeloma patients (p < 0.0001). Regression analysis for the prediction of nonresponse to treatment in these cases using different prognostic indicators revealed that high serum b2 microglobulin, unfavorable cytogenetic, advanced stage, and low expression of CD69 and CD56 were poor predictors of non-response. Conclusion: CD69 in association with CD56 could be an independent prognostic factor in multiple myeloma cases. It could be used in the routine laboratory assessment for refining stratification and timely therapeutic decision for highly cost therapy in developing countries.
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