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bioRxiv · 10.1101/2023.01.03.522576

Establishment of primary renal lymphoma model and the clinical relevance

Li, X.·Deng, M.·Zhang, C.·Luo, L.·Qian, H.
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Abstract

Extranodal dissemination was an important feature of aggressive B-cell lymphoma. Due to the lack of available animal model, the causes of extranodal dissemination of lymphoma were largely unknown. Here, we identified a novel cell line, named MA-K, which originated from the E-Myc;Cdkn2a-/- cell line, named MA-LN in this study. Compared to MA-LN, MA-K tended to disseminate in the kidney rather than lymph nodes in lymphoma transplantation model, resembling human primary renal lymphoma. The transcriptome analysis revealed that MA-K had undergone the transcriptional evolution during the culture. Specialized transcriptional pattern analysis, we proposed in this study, identified that FOXO1-BTG1-MYD88 pattern was formed in MA-K. Further analysis found that translation pathway was the most enriched pathway in specially expressed genes (SEGs) in MA-K. Among the SEGs, 3 up-regulated genes, RPLP2, RPS16 and MRPS16, and 5 down-regulated genes, SSPN, CD52, ANKRD37, CCDC82 and VPREB3, in MA-K were identified as promising biomarkers to predict the clinical outcomes of human DLBCL. Moreover, the joint expression of the 5-gene signature could effectively predict clinical outcomes of human DLBCL in triple groups. These findings suggested that the MA-K cell line had strong clinical relevance with human aggressive B-cell lymphoma. Moreover, the MA-K primary renal lymphoma model, as a novel syngenetic mouse model, would be greatly useful for both the basic research on lymphoma dissemination and preclinical efficacy evaluation of chemotherapy and immunotherapy.

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Li, X., Deng, M., Zhang, C., Luo, L., Qian, H.. 2023-01-03. Establishment of primary renal lymphoma model and the clinical relevance. https://doi.org/10.1101/2023.01.03.522576

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