Osmotic core-shell polymeric implant for sustained BDNF AntagoNAT delivery in CNS using minimally invasive nasal depot (MIND) approach.
Osmotic core-shell polymeric implant for sustained BDNF AntagoNAT delivery in CNS using minimally invasive nasal depot (MIND) approach.
复制标题
渗透性核壳聚合物植入物,用于使用微创鼻贮库(MIND)方法在CNS中持续递送BDNF AntagoNAT。
DOI:
10.1016/j.biomaterials.2021.120989
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发表时间:
2021-09
期刊:
影响因子:
14
通讯作者:
Amiji MM
中科院分区:
文献类型:
--
作者:
Padmakumar S;Jones G;Khorkova O;Hsiao J;Kim J;Bleier BS;Amiji MM
The development of drug delivery strategies for efficacious therapeutic administration directly into the central nervous system (CNS) in a minimally invasive manner remains a major obstacle hindering the clinical translation of biological disease-modifying therapeutics. A novel direct trans-nasal delivery method, termed ‘Minimally-Invasive Nasal Depot’ (MIND), has proved to be successful in providing high CNS uptake and brain distribution of blood-brain barrier (BBB) impermeant therapeutics via direct administration to the olfactory submucosal space in a rodent model. The present study describes the engineering of custom-made implants with a unique architecture of an “osmotically-active core” entrapping the therapeutic and a “biodegradable polymeric shell” to enable long-acting delivery using the MIND procedure. The MIND-administered implant provided sustained CNS delivery of brain derived neurotrophic factor (BDNF) AntagoNATs for up to 4 weeks in Sprague Dawley rats resulting in significant endogenous BDNF protein upregulation in several brain tissues. The biocompatibility of such core-shell implants coupled with their substantial pharmacokinetic advantages and safety of the MIND procedure highlights the practical utility and translational potential of this synergistic approach for treatment of chronic age-related neurodegenerative diseases.
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