TY - JOUR
T1 - Smooth Muscle Phenotype Switching in Blast Traumatic Brain Injury-Induced Cerebral Vasospasm
AU - Hald, Eric S.
AU - Alford, Patrick W.
PY - 2014/6
Y1 - 2014/6
N2 - Due to increased survival rates among soldiers exposed to explosive blasts, blast-induced traumatic brain injury (bTBI) has become much more prevalent in recent years. Cerebral vasospasm (CVS) is a common manifestation of brain injury whose incidence is significantly increased in bTBI. CVS is characterized by initial vascular smooth muscle cell (VSMC) hypercontractility, followed by prolonged vessel remodeling and lumen occlusion, and is traditionally associated with subarachnoid hemorrhage (SAH), but recent results suggest that mechanical injury during bTBI can cause mechanotransduced VSMC hypercontractility and phenotype switching necessary for CVS development, even in the absence of SAH. Here, we review the mechanisms by which mechanical stimulation and SAH can synergistically drive CVS progression, complicating treatment options in bTBI patients.
AB - Due to increased survival rates among soldiers exposed to explosive blasts, blast-induced traumatic brain injury (bTBI) has become much more prevalent in recent years. Cerebral vasospasm (CVS) is a common manifestation of brain injury whose incidence is significantly increased in bTBI. CVS is characterized by initial vascular smooth muscle cell (VSMC) hypercontractility, followed by prolonged vessel remodeling and lumen occlusion, and is traditionally associated with subarachnoid hemorrhage (SAH), but recent results suggest that mechanical injury during bTBI can cause mechanotransduced VSMC hypercontractility and phenotype switching necessary for CVS development, even in the absence of SAH. Here, we review the mechanisms by which mechanical stimulation and SAH can synergistically drive CVS progression, complicating treatment options in bTBI patients.
KW - Biomechanics
KW - Blast traumatic brain injury
KW - Cerebral vasospasm
KW - Phenotype transformation
KW - Subarachnoid hemorrhage
KW - Vascular smooth muscle cells
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U2 - 10.1007/s12975-013-0300-3
DO - 10.1007/s12975-013-0300-3
M3 - Article
C2 - 24323722
AN - SCOPUS:84901250207
SN - 1868-4483
VL - 5
SP - 385
EP - 393
JO - Translational Stroke Research
JF - Translational Stroke Research
IS - 3
ER -