期刊
JOURNAL OF NEUROTRAUMA
卷 38, 期 17, 页码 2336-2372出版社
MARY ANN LIEBERT, INC
DOI: 10.1089/neu.2020.7402
关键词
animal models; cell culture models; in vitro models; mechanical assay; traumatic brain injury
资金
- Ministry of Business, Innovation and Employment of New Zealand's Catalyst Fund [PROP-55749-INTCS-UOA]
- Global Infrastructure Program through the National Research Foundation of Korea [NRF-2017K1A3A1A17092641]
- National Research Foundation of Korea [2017K1A3A1A17092641] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
Traumatic brain injury (TBI) is a major public health challenge globally, leading in death and long-term disability in children and young adults. In vitro studies reviewed mostly focused on uniaxial stretch as a loading method, categorizing injuries into mild, moderate, and severe, highlighting key processes like membrane disruptions, inflammation, and cell death. Areas for improvement include diversifying load application methods, utilizing more human brain cells, and developing high-throughput systems for effective therapeutic targets discovery.
Traumatic brain injury (TBI) is a major public health challenge that is also the third leading cause of death worldwide. It is also the leading cause of long-term disability in children and young adults worldwide. Despite a large body of research using predominantly in vivo and in vitro rodent models of brain injury, there is no medication that can reduce brain damage or promote brain repair mainly due to our lack of understanding in the mechanisms and pathophysiology of the TBI. The aim of this review is to examine in vitro TBI studies conducted from 2008-2018 to better understand the TBI in vitro model available in the literature. Specifically, our focus was to perform a detailed analysis of the in vitro experimental protocols used and their subsequent biological findings. Our review showed that the uniaxial stretch is the most frequently used way of load application, accounting for more than two-thirds of the studies reviewed. The rate and magnitude of the loading were varied significantly from study to study but can generally be categorized into mild, moderate, and severe injuries. The in vitro studies reviewed here examined key processes in TBI pathophysiology such as membrane disruptions leading to ionic dysregulation, inflammation, and the subsequent damages to the microtubules and axons, as well as cell death. Overall, the studies examined in this review contributed to the betterment of our understanding of TBI as a disease process. Yet, our review also revealed the areas where more work needs to be done such as: 1) diversification of load application methods that will include complex loading that mimics in vivo head impacts; 2) more widespread use of human brain cells, especially patient-matched human cells in the experimental set-up; and 3) need for building a more high-throughput system to be able to discover effective therapeutic targets for TBI.
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