Drug delivery has long been a thorny problem in tackling brain diseases. The same is true for stroke, an important member of brain disease. Of the 50 new drugs approved in 2021, only eight were for neuropsychiatric disorders. This data, however, presupposes an increasing trend in the number of new neuropsychiatric drugs approved over the past decade. Currently, there is no effective and universally applicable treatment for stroke. One of the main reasons for this is the challenge of delivering treatment to the stroke site because of the blood-brain barrier. Although strokes can disrupt the integrity of the blood-brain barrier to varying degrees, the magnitude and time frame of BBB disruption is incompletely understood because of many limitations. Nanoparticles, liposomes, and exosomes are now common drug delivery vehicles for the brain. They have different strengths and different processing methods that allow for efficient delivery of drugs to the brain. Accordingly, Ace Therapeutics provides comprehensive services to facilitate the development of nano drug delivery systems, liposome drug delivery systems, and exosome drug delivery systems in the field of stroke while accelerating the pace of stroke treatment.
Research has proved that the nanomedicine delivery system is an efficient and safer way to deliver drugs. Since the size of nanoparticles with smaller than 200nm, they can permeate the "leaky" tissue with enhanced permeability and retention effects to facilitate drug delivery. Nanoparticles can increase the concentration of drugs on the surface of BBB cells compared with traditional preparations, or nanoparticles can increase their circulation time in the blood, providing drugs with more opportunities to cross the BBB. In addition, nanoparticles in general have the advantage of multi functionalities. Nanoparticles can carry drug payloads with the ability to control drug release and alter drug pharmacokinetic advantages. In view of this, Ace Therapeutics offers comprehensive services to facilitate the development of targeted nanoparticle drug delivery systems.
The drug delivery system based on liposomes can significantly prolong the circulation time of macromolecular drugs in vivo, improve the delivery of drugs into cells, and improve efficacy. Although the current research on liposomes has been relatively rich. However, there are still some limitations, such as low drug loading, poor stability, high production cost, potential toxicity, and side effects of some drugs. In view of this, Ace Therapeutics offers comprehensive services designed to address these challenges and facilitate the development of liposomal drug delivery for stroke therapy.
With the deepening of research, the veil of exosomes has been gradually unveiled. Exosomes can deliver compound drugs, nucleic acid drugs, and protein drugs. As a drug delivery carrier, exosomes have the advantages of biocompatibility, biostability, and targeting. At the same time, exosomes have many therapeutic effects on diseases. For example, in the pathological process of stroke, some exosomes have been proven to relieve neuroinflammation, restore neurological function, and other activities. Therefore, the exosome delivery system can also play a certain therapeutic effect while delivering drugs.
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