Scientists have developed a way to turn the body’s own immune cells into cancer-fighting agents—without removing them from the body—by using red blood cells to deliver genetic instructions. Current CAR (chimeric antigen receptor) therapies typically involve collecting a patient’s T cells, genetically modifying them in the laboratory, and then reinfusing them in a process that can take weeks. The new strategy aims to bypass that step.
In a study published in Science Translational Medicine, researchers at Westlake Laboratory of Life Sciences and Biomedicine in Hangzhou, China, report that they used engineered erythrocytes, or red blood cells, to carry messenger RNA—mRNA—that reprograms myeloid cells into tumor-targeting cells inside the body.
“Engi...
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