Tcl1 Transgenic Mice

Tech ID: 20525 / UC Case 2002-274-0


TCL1 is a protooncogene overexpressed in many mature B cell lymphomas. TCL1 is also expressed in precursor T cells and absent by the CD4+ CD8+ stage of thymocyte development. In B cells, TCL1 is first expressed in pro-B cells, and is completely absent in memory B cells and plasma cells.


UCLA researchers have developed a murine model in which a TCL1 transgene is overexpressed in both B and T cells. These transgenic mice develop Burkitt-like lymphoma and diffuse large B cell lymphoma at 4 months. This phenotype is accompanied by attendant Bcl-6 expression and mutated JH antibody gene segments. Interestingly, TCL1 is a more powerful initiator of B cell malignancies when compared to the low frequency of T cell malignancies with this model. This is mirrored in humans as >85% of human immune system malignancies are B cell derived.


  • Mouse model for immune system malignancies in B, T and granulocytes cells.
  • Mouse model for B-cell selection, development, maturation, antibody production and signaling responses through PI3-kinase pathways.
  • Mouse model for designing therapeutics against B-cell malignancies and preventing autoantibody production in autoimmune diseases.

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  • Teitell, Michael A.

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research tools, mouse model, immunity

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