What’s the difference between gene therapy and cell therapy?

Gene therapy is a technique that uses genes to treat or prevent diseases. With this technique, it is possible to insert genes into a patient´s cells to treat genetic disorders. Gene therapy can reduce the levels of certain disease-causing proteins or increase the production of disease-fighting proteins.

In turn, cell therapy is the transfer of live cells into a patient to treat a disease. These cells may originate from the patient (autologous cells) or a donor (allogeneic cells). Another characteristic of cell therapy is pluripotent cells, which means cells that can transform into any cell type in the body. Multipotent cells can also be used, depending on the type of treatment. 

References:

https://medlineplus.gov/genetics/understanding/therapy/genetherapy/#:~:text=Gene%20therapy%20is%20an%20experimental,of%20using%20drugs%20or%20surgery.

https://www.asgct.org/education/more-resources/gene-and-cell-therapy-faqs