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Prognostic implications of MUC1 and XBP1 concordant expression in multiple myeloma: A retrospective study
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Prognostic implications of MUC1 and XBP1 concordant expression in multiple myeloma: A retrospective study
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Prognostic implications of MUC1 and XBP1 concordant expression in multiple myeloma: A retrospective study
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Journal Article
Prognostic implications of MUC1 and XBP1 concordant expression in multiple myeloma: A retrospective study
2025
Overview
Multiple myeloma (MM) is a disease of malignant plasma cells (PC) with poor survival. Disease progression and treatment relapse are attributed to MM cancer stem cells (CSCs) and signaling molecules such as MUC1 and XBP1. The study aimed to determine the prognostic value of expression of CSC-associated biomarkers, MUC1 and XBP1 in MM, which has not been explored previously. In this study, we determined the immunohistochemical expression of CSC markers (ALDH1, CD117, and CD34), MUC1, and XBP1 in 128 MM formalin-fixed paraffin-embedded bone marrow archival blocks. The expression of biomarkers was assessed for association with clinicopathological variables and patient survival. Descriptive analysis, survival plots and crude association between outcome and independent variables were assessed using Kaplan Meier and Log rank test. Univariate and multivariable analyses were performed using simple and multiple Cox regression models. The results are reported as crude and adjusted hazard ratios with 95% confidence intervals. Expression of ALDH1 and CD117 was found in 51% and 48% of the tumors, respectively. ALDH1 expression was associated with 1.83 years of reduced survival for patients with CD56-negative tumors. MUC1 expression was observed in 62%, whereas XBP1 was expressed in 48% of tumors. Combinatorial group analysis of XBP1 and MUC1 stratified patients into two prognostic groups. Cases with tumors negative for expression of MUC1 and XBP1 (XBP1-/ MUC1-) were categorized as a good prognostic group with increased survival of 3.42 years compared to cases with tumors expressing both ( Worst prognosis , XBP1 + /MUC1+) . Concordant expression of MUC1 and XBP1 in MM defines a subset of patients with adverse outcomes. The adjusted hazard ratio showed a four-fold increased risk of mortality associated with the concordant expression of MUC1 and XBP1 in patients > 65 years of age.
Publisher
Public Library of Science,Public Library of Science (PLoS)
Subject
/ Aged
/ Biomarkers, Tumor - metabolism
/ Biopsy
/ DNA-Binding Proteins - metabolism
/ Ethics
/ Female
/ Gene Expression Regulation, Neoplastic
/ Humans
/ Male
/ Medicine and Health Sciences
/ Mucins
/ Multiple Myeloma - diagnosis
/ Multiple Myeloma - metabolism
/ Multiple Myeloma - mortality
/ Multiple Myeloma - pathology
/ Neoplastic Stem Cells - metabolism
/ Neoplastic Stem Cells - pathology
/ Patients
/ Plasma
/ Proteins
/ Regulatory Factor X Transcription Factors
/ Survival
/ Transcription Factors - metabolism
/ Tumors
