In summary, we here presented a general method for full-course
inhibition of biodegradation-induced inflammatory response via a
facile enzyme-sensitive prodrug-loaded strategy. In our study, drug
release from the prodrug-loaded model materials showed an
enzyme-triggered release process, which led to an initial moderate
release of anti-inflammatory drugs and a later-stage degradationsynchronized
drug release. This unique release kinetics ingeniously
realized on-demand release of anti-inflammatory drugs for therapy
and efficient inhibition of inflammation throughout the biodegradation
in vivo. More importantly, the prodrug-loaded polymeric
materials with different biodegradation rates all showed drug
release kinetics that matched to their biodegradation rates.
Therefore, the prodrug-loaded strategy in this paper offered a facile
and general solution for one of the critical problems in current
synthetic biodegradable polymeric implants, i.e., efficient and fullcourse
inhibition of biodegradation-induced inflammation.
Furthermore, the release kinetic in this strategy exhibited potentials
for “batch release” of multiple drugs in combination therapy as
well as provided a hint for the drug therapies of some other
symptoms caused by in vivo biodegradation of these polymeric
implants.