Conjugation of Morpholino antisense oligos with endosomal escape moieties is bringing effective antisense techniques to rodent research. Such conjugates will likely debut soon as therapeutics. This is an open-access review of two delivery-enabled forms of Morpholinos.

Moulton JD, Jiang S. Gene Knockdowns in Adult Animals: PPMOs and Vivo-Morpholinos. Molecules. 2009; 14(3):1304-1323.