
Engineered Toxin Bodies Targeting CD38 in Myeloma with Shaji Kumar, MD, Mayo Clinic
We are familiar with monoclonal antibodies like daratumumab and isatuximab that link the immune system to a target like CD38 on the surface of myeloma cells. A new treatment called Engineered Toxin Bodies (ETBs) with a stronger mechanism of action is being developed by Molecular Templates. The ETBs move deeply within the plasma cell instead of just flagging the cell's surface. Unlike other CD38 targeted therapies, ETBs don't rely on the body's own immune system (the patient's T cells or natural killer cells) for effective myeloma-killing responses. ETBs deliver a modified bacterial toxin into the inner liquid material of cancerous plasma cells (the cytosol). When this toxin is internalized, it destroys the ribosomes (the location responsible for cell life or death). Learn more about this up-and-coming therapy that could even work in daratumumab or isatuximab-refractory patients by lead investigator, Shaji Kumar, MD of the Mayo Clinic.
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Shaji Kumar, MD
Mayo Clinic
Interview Date: January 6, 2022
We are familiar with monoclonal antibodies like daratumumab and isatuximab that link the immune system to a target like CD38 on the surface of myeloma cells. A new treatment called Engineered Toxin Bodies (ETBs) with a stronger mechanism of action is being developed by Molecular Templates. The ETBs move deeply within the plasma cell instead of just flagging the cell's surface. Unlike other CD38 targeted therapies, ETBs don't rely on the body's own immune system (the patient's T cells or natural killer cells) for effective myeloma-killing responses. ETBs deliver a modified bacterial toxin into the inner liquid material of cancerous plasma cells (the cytosol). When this toxin is internalized, it destroys the ribosomes (the location responsible for cell life or death). Learn more about this up-and-coming therapy that could even work in daratumumab or isatuximab-refractory patients by lead investigator, Shaji Kumar, MD of the Mayo Clinic.
Thanks to our episode sponsor


Shaji Kumar, MD

Jennifer Ahlstrom