Back

Enhanced Solid Tumor Recognition and T cell Stemness with SynNotch CAR Circuits

Hyrenius-Wittsten, A.; Su, Y.; Park, M.; Garcia, J. M.; Perry, N.; Montgomery, G.; Liu, B.; Roybal, K. T.

2021-01-07 immunology
10.1101/2021.01.06.425642 bioRxiv
Show abstract

The lack of highly tumor-specific antigens limits the development of engineered T cell therapeutics because of life-threatening "on-target/off-tumor" toxicities. Here we identify ALPPL2 as a tumor-specific antigen expressed in a spectrum of solid tumors, including mesothelioma. ALPPL2 can act as a sole target for chimeric antigen receptor (CAR) therapy or be combined with tumor-associated antigens such as MCAM or mesothelin in synthetic Notch (synNotch) CAR combinatorial antigen circuits. SynNotch CAR T cells display superior tumor control when compared to CAR T cells to the same antigens by prevention of CAR-mediated tonic signaling allowing T cells to maintain a long-lived memory and non-exhausted phenotype. Collectively, we establish ALPPL2 as a clinically viable target for multiple solid tumors and demonstrate the multi-faceted therapeutic benefits of synNotch CAR T cells. ONE SENTENCE SUMMARYSynNotch CAR circuits targeting novel solid tumor antigens enhance specificity and improve therapeutic efficacy by regulating T cell exhaustion.

Matching journals

The top 8 journals account for 50% of the predicted probability mass.

50% of probability mass above

"Similar papers" are the closest papers from that journal in the model's embedding space. They show what the match is built on, but the ranking comes mostly from a classifier over the whole training set, not from these examples alone.