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Updated: Jun 29, 2025

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An Organotypic High Throughput System for Characterization of Drug Sensitivity of Primary Multiple Myeloma Cells
Published on: July 15, 2015
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Low TYROBP expression predicts poor prognosis in multiple myeloma.
Hong Luo1,2, Chengyun Pan1, Li Wang1,2
1Department of Hematology, Affiliated Hospital of Guizhou Medical University, Guiyang, 550004, China.
Cancer Cell International
|March 29, 2024
Summary
TYROBP is a potential prognostic marker for multiple myeloma (MM), a refractory hematologic cancer. Down-regulation of TYROBP indicates a poor prognosis and affects MM development via cell adhesion pathways.
Area of Science:
- Hematology
- Oncology
- Molecular Biology
Background:
- Multiple myeloma (MM) is a significant refractory hematologic cancer.
- Identifying novel prognostic markers is crucial for MM management.
Purpose of the Study:
- To identify novel prognostic markers for multiple myeloma (MM).
- To investigate the role of TYROBP in MM development and progression.
Main Methods:
- Differential gene expression analysis and Weighted Gene Co-expression Network Analysis (WGCNA) were used to identify MM-related genes.
- Protein-protein interaction (PPI) analysis identified hub genes, including TYROBP.
- Gene Ontology (GO), Kyoto Encyclopedia of Genes and Genomes (KEGG), and Gene Set Enrichment Analysis (GSEA) were performed for functional and pathway analysis.
- Western blotting, RT-PCR, cell adhesion, and transwell assays validated TYROBP's role.
Main Results:
- 92 differentially expressed genes (DEGs) and 10 hub genes were identified.
- Down-regulation of TYROBP correlated with dismal MM prognosis.
- TYROBP independently predicted MM prognosis and was linked to the cell adhesion pathway.
- TYROBP expression was decreased in MM patients, and its up-regulation increased MM cell adhesion and decreased migration.
Conclusions:
- TYROBP is a potential prognostic marker for multiple myeloma (MM).
- TYROBP plays a role in MM cell adhesion and migration, influencing disease progression.
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