21/10/2026
Can a little sugar make cell therapy reach more patients?
A recent study from MIT, published in Trends in Biotechnology, tackles one of the quieter bottlenecks in cell therapy: what happens to living cells between manufacture and the patient’s bedside.
Most CAR-T products are frozen and shipped using DMSO as a cryoprotectant. DMSO usually has to be washed out before infusion, a step that many hospitals are not equipped to perform and one that can reduce the number of viable, functional cells. The researchers note that only around 5 percent of US hospitals can currently generate and deliver CAR-T cells.
The team, led by Ana Jaklenec and Robert Langer at the Koch Institute, used electroporation to load the cells with trehalose and sucrose, the same natural antifreeze strategy used by organisms such as the wood frog. Only a small amount of DMSO was still needed, low enough that no removal step is required after thawing. Cells preserved this way showed higher post-thaw survival, and in mouse models of lymphoma and glioblastoma, the sugar-preserved CAR-T cells improved survival compared with conventionally preserved cells. The approach also worked for mesenchymal stem cells.
Why does this resonate with our work at CytoMed Therapeutics? Our focus is on donor-derived, allogeneic immunotherapies, including CAR γδ T cells and iPSC-derived γδ NKT cells, designed as “off-the-shelf” products. For allogeneic therapies, the promise of off-the-shelf access depends heavily on how well cells survive storage, transport and thawing. Advances in cryopreservation such as this one bring the field closer to cell therapies that are not only effective but also practical to deliver at more treatment centres.
As the authors themselves acknowledge, clinical validation is still to come. Even so, it is a timely reminder that improving every step of manufacturing, not just the biology of the cell, can meaningfully widen patient access.
🔗 https://news.mit.edu/2026/cell-preservation-technique-could-make-car-t-cell-therapy-more-accessible-0819
MIT researchers developed a way to protect CAR-T cells from damage that can occur when they are frozen for storage and shipment. Their technique should make it easier for more hospitals to provide this treatment option to cancer patients.