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Updated: Aug 11, 2026

Draining Lymph Node Metastasis Model for Assessing the Dynamics of Antigen-Specific CD8+ T Cells During Tumorigenesis
Published on: January 26, 2024
Notch1-dependent lymphomagenesis is assisted by but does not essentially require pre-TCR signaling
Antonio F Campese1, Annette I Garbe, Fangrong Zhang
1Harvard Medical School, Dana-Farber Cancer Institute, Boston, MA 02115, USA.
Abstract:
Overexpression of intracellular Notch plays an important role in the generation of human acute lymphoblastic T cell leukemia (T-ALL). In mouse models, it was shown that Notch-dependent T-ALL required pre-TCR signaling. Here we show that pre-TCR signaling is required to condition mice for Notch-dependent transformation but that it is not required to sustain malignant growth of T-ALL. In contrast to previous studies, we found that disease development does not require pre-TCR but that it can be accelerated in Rag2(-/-) mice by transient mimicking of pre-TCR signals.
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