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Updated: Feb 5, 2026

Modeling Chemotherapy Resistant Leukemia In Vitro
Published on: February 9, 2016
Exosome-derived miRNAs as predictive biomarkers for diffuse large B-cell lymphoma chemotherapy resistance
Yuhua Feng1, Meizuo Zhong1, Shan Zeng1
1Department of Oncology, Xiangya Hospital, Central South University, Changsha 410008, Hunan, PR China.
Aim:
To analyze the expression profiles, clinicopathological features and chemotherapeutic efficacies of exosome-derived miRNAs in diffuse large B-cell lymphoma (DLBCL).
Materials & Methods:
Next-generation sequencing technique was performed to identify miRNA profiles in exosomes from parental and chemoresistant DLBCL cells. The results were validated by quantitative real-time PCR, and further analyzed by bioinformatics and statistical methods.
Results:
We identified 37 significantly upregulated and 17 downregulated miRNAs. Of four upregulated miRNAs validated, we found miR-99a-5p and miR-125b-5p were significantly upregulated. Increased levels of exosomal miR-99a-5p and miR-125b-5p in DLBCL patients' serum were associated with shorter progression-free survival time, and they can predict chemotherapeutic efficacy.
Conclusion:
Exosomal miR-99a-5p and miR-125b-5p can serve as biomarkers for DLBCL.
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