期刊
ADVANCED FUNCTIONAL MATERIALS
卷 31, 期 44, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adfm.202010674
关键词
biomaterials; cell therapy; drug delivery; immunomodulation; ischemic stroke
类别
资金
- Canadian Institutes for Health Research (CIHR)
- Natural Sciences and Engineering Council of Canada (NSERC)
- Collaborative Health Research Program (CHRP) - CIHR
- NSERC
- NSERC PGSD
Stroke is a common cause of disability, with no current effective treatment available. Innovative clinical trials to improve stroke recovery often face challenges due to the complexity of stroke pathophysiology. While immunomodulatory strategies have shown success in experimental studies, translating them into clinical practice remains difficult.
Stroke is a leading cause of disability with no current treatment to regenerate lost brain tissue. Innovative preclinical and clinical trials have attempted to improve stroke recovery by promoting cell survival, downregulating astrogliosis and inflammation, and improving neurogenesis and angiogenesis; however, the complexity of stroke pathophysiology raises many challenges. Previous attempts to grossly inhibit the inflammatory reaction failed to improve stroke outcomes, prompting scientists to explore selective modulation rather than unbiased inhibition. Although experimental studies involving immunomodulation are successful, strategies have largely failed in the clinic. Some of these approaches are hindered by poor delivery efficiency or cell survival, challenges that could be at least partially overcome using biomaterials. Biomaterials may enhance immunomodulatory processes by improving drug and cell delivery to the injured tissue. Furthermore, the materials themselves can support healing and may be designed to act as immunomodulators, thereby contributing to tissue regeneration and endogenous repair processes. Described here are novel biomaterial-based strategies to modulate the immune response after ischemic stroke, with an emphasis on extracellular matrix mimetics and hydrogels for local delivery of drugs and cells. Finally, a future perspective is described, highlighting the potential of these therapies to achieve clinical translation and improve patients' functional repair.
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