Early to Long-Term Alterations of CNS Barriers After Traumatic Brain Injury: Considerations for Drug Development
| Autor: | Beatriz Rodriguez-Grande, Aleksandra Ichkova, Jérôme Badaut, Sighild Lemarchant |
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| Rok vydání: | 2017 |
| Předmět: |
0301 basic medicine
medicine.medical_specialty Traumatic brain injury Central nervous system Pharmaceutical Science Poison control Bioinformatics Blood–brain barrier Neuroprotection 03 medical and health sciences Therapeutic approach 0302 clinical medicine Brain Injuries Traumatic Drug Discovery Injury prevention medicine Humans Neuroinflammation Cerebrospinal Fluid business.industry Brain Biological Transport medicine.disease Oxidative Stress 030104 developmental biology medicine.anatomical_structure Blood-Brain Barrier Choroid Plexus Physical therapy business 030217 neurology & neurosurgery |
| Zdroj: | The AAPS Journal. 19:1615-1625 |
| ISSN: | 1550-7416 |
| DOI: | 10.1208/s12248-017-0123-3 |
| Popis: | Traumatic brain injury (TBI) is one of the leading causes of death and disability, particularly amongst the young and the elderly. The functions of the blood-brain barrier (BBB) and blood-cerebrospinal fluid barrier (BCSFB) are strongly impaired after TBI, thus affecting brain homeostasis. Following the primary mechanical injury that characterizes TBI, a secondary injury develops over time, including events such as edema formation, oxidative stress, neuroinflammation, and alterations in paracelullar and transcellular transport. To date, most therapeutic interventions for TBI have aimed at direct neuroprotection during the acute phase and have not been successful. Targeting the barriers of the central nervous system (CNS) could be a wider therapeutic approach, given that restoration of brain homeostasis would benefit all brain cells, including neurons. Importantly, BBB disregulation has been observed even years after TBI, concomitantly with neurological and psychosocial sequelae; however, treatments targeting the post-acute phase are scarce. Here, we review the mechanisms of primary and secondary injury of CNS barriers, the accumulating evidence showing long-term damage to these structures and some of the therapies that have targeted these mechanisms. Finally, we discuss how the injury characteristics (hemorrhagic vs non-hemorrhagic, involvement of head rotation, gray vs white matter), the sex, and the age of the patient need to be carefully considered to improve clinical trial design and outcome interpretation, and to improve future drug development. |
| Databáze: | OpenAIRE |
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