4.8 Review

The Eμ-hnRNP K Murine Model of Lymphoma: Novel Insights into the Role of hnRNP K in B-Cell Malignancies

Journal

FRONTIERS IN IMMUNOLOGY
Volume 12, Issue -, Pages -

Publisher

FRONTIERS MEDIA SA
DOI: 10.3389/fimmu.2021.634584

Keywords

B-cell malignancies; lymphoma; diffuse large B cell lymphoma; mouse model; hnRNP K; Eµ -Hnrnpk; RNA-binding protein; MYC

Categories

Funding

  1. National Cancer Institute/National Institutes of Health Award [R01CA207204]
  2. Leukemia and Lymphoma Society [6577-19]
  3. Dr. John J. Kopchick Fellowship
  4. Cris contra el Cancer association
  5. Instituto de Salud Carlos III (Ministry of Economy, Industry and Competitiveness)
  6. European Regional Development Fund
  7. [CP19/00140]
  8. [PI18/00295]

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B-cell lymphomas are a highly heterogeneous group of malignancies requiring appropriate animal models for research and identifying effective therapies. This article discusses a new driver of B-cell lymphomas, hnRNP K, and introduces a mouse model for studying this disease. The model shows high penetrance of B-cell lymphomas and upregulation of the c-Myc oncogene, making it a valuable pre-clinical platform for assessing novel therapeutics.
B-cell lymphomas are one of the most biologically and molecularly heterogeneous group of malignancies. The inherent complexity of this cancer subtype necessitates the development of appropriate animal model systems to characterize the disease with the ultimate objective of identifying effective therapies. In this article, we discuss a new driver of B-cell lymphomas - hnRNP K (heterogenous nuclear ribonucleoprotein K)-an RNA-binding protein. We introduce the E mu-Hnrnpk mouse model, a murine model characterized by hnRNP K overexpression in B cells, which develops B-cell lymphomas with high penetrance. Molecular analysis of the disease developed in this model reveals an upregulation of the c-Myc oncogene via post-transcriptional and translational mechanisms underscoring the impact of non-genomic MYC activation in B-cell lymphomas. Finally, the transplantability of the disease developed in E mu-Hnrnpk mice makes it a valuable pre-clinical platform for the assessment of novel therapeutics.

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