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QuickSwitch, a tool for adoptive T cell transfer

Posted by Yuri Poluektov on Apr 24, 2019 1:00:00 PM

Our understanding of how the immune system responds to cancer has increased by leaps and bounds in the past two decades, allowing us to develop a new approach to fight cancer that uses the power of the body’s own immune system to prevent, target, control, and eliminate the disease. Collectively, this technique of battling cancer is known as cancer immunotherapy. Such an approach encompasses many methods from broad ones like applying immune checkpoint blockers (ICB) or using monoclonal antibodies (mAbs) that target known cancer antigens to more personalized ones like adoptive T cell transfer including the use of Chimeric antigen receptor (CAR) T cells.

It is this personalized immunotherapy approach that has sparked a great deal of interest among researchers. This method involves the extraction of a patient’s T cells and the subsequent stimulation of the rare T cells populations that can fight cancer with specific antigens. For this form of therapy to work there needs to be an exact knowledge of the peptide sequences derived from tumor cells (neo-epitopes) that can be used to artificially stimulate a patient’s T cells to fight them.

Previously, we have described how by using the QuickSwitchTM Quant Platform peptides, they can be tested for their ability to bind MHC Class I molecules. This test does not involve prediction algorithms or large swaths of data with a great deal of false positives but provides an in vitro result of whether or not the peptide can be presented on the MHC molecule in about 8 hours. It is our hope that by using our kit, researchers will be able to discover and validate neoantigen peptide sequences more effectively, which would open up new ways for adoptive T cell transfer in cancer immunotherapy.

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Topics: Tetramer, QuickSwitch

Quick!  Switch out your peptide! 

Posted by Marc Delcommenne, PhD on Mar 27, 2018 12:58:00 PM

The immunotherapy field is making great progress in aiding many disease treatments.  The hope is that one day, personalized immunotherapy can be used so each patient can use their own immune system to overcome their specific disease affliction.  QuickSwitch is a tool for creating custom MHC class I tetramers quickly and easily.

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Topics: Tetramer, QuickSwitch, Peptide, Peptide Exchange

Quick!  Switch out your peptide!

Posted by Marc Delcommenne, PhD on Jan 20, 2017 11:00:21 AM

The immunotherapy field is making great progress in aiding many disease treatments.  The hope is that one day, personalized immunotherapy can be used so each patient can use their own immune system to overcome their specific disease affliction.  QuickSwitch is a tool for creating custom MHC class I tetramers quickly and easily.

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Topics: Tetramer, QuickSwitch, Peptide, Peptide Exchange

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