Regeneration and mitigation: an opinionated take on NEJM highlights for March 2017
Gene therapy for sickle cell disease Typical diseases targeted by gene therapy are those for which there is a defect that prevents the production of a functional protein needed for normal life; remediation is achieved by inserting functioning copies of the gene, and fortunately, it is usually the case that expression at a low level is sufficient to greatly improve outcomes. The situation is different in sickle cell where the defective hemoglobin is actually harmful, and where success of gene therapy requires not only production normal hemoglobin, but replacement of