光血栓性脑卒中作为缺血性脑卒中模型。
Photothrombotic Stroke as a Model of Ischemic Stroke.
机构信息
Laboratory of Molecular Neurobiology, Academy of Biology and Biotechnology, Southern Federal University, 194/1 Stachky prospect, Rostov-on-Don, 344090, Russia.
出版信息
Transl Stroke Res. 2018 Oct;9(5):437-451. doi: 10.1007/s12975-017-0593-8. Epub 2017 Nov 29.
The search of effective anti-stroke neuroprotectors requires various stroke models adequate for different aspects of the ischemic processes. The photothrombotic stroke model is particularly suitable for the study of cellular and molecular mechanisms underlying neurodegeneration, neuroprotection, and neuroregeneration. It is a model of occlusion of small cerebral vessels, which provides detailed study of molecular mechanisms of ischemic cell death and useful for search of potential anti-stroke agents. Its advantages include well-defined location and size of ischemic lesion that are determined by the aiming of the laser beam at the predetermined brain region; easy impact dosing by changing light intensity and duration; low invasiveness and minimal surgical intervention without craniotomy and mechanical manipulations with blood vessel, which carry the risk of brain trauma; low animal mortality and prolonged sensorimotor impairment that provide long-term study of stroke consequences including behavior impairment and recovery; independence on genetic variations of blood pressure and vascular architecture; and high reproducibility. This review describes the current application of the photothrombotic stroke model for the study of cellular and molecular mechanisms of stroke development and ischemic penumbra formation, as well as for the search of anti-stroke drugs.
寻找有效的抗中风神经保护剂需要各种适合缺血过程不同方面的中风模型。光血栓性中风模型特别适合研究神经退行性变、神经保护和神经再生的细胞和分子机制。它是一种小脑血管闭塞的模型,提供了对缺血性细胞死亡的分子机制的详细研究,有助于寻找潜在的抗中风药物。其优点包括缺血性损伤的位置和大小明确,这是通过将激光束瞄准预定的脑区来确定的;通过改变光强度和持续时间,易于实现精确的影响剂量;微创性和最小的手术干预,无需开颅和对血管进行机械操作,从而降低了脑外伤的风险;动物死亡率低,感觉运动障碍持续时间长,为研究中风后果(包括行为障碍和恢复)提供了长期的研究;独立于血压和血管结构的遗传变异;以及高度可重复性。本文综述了光血栓性中风模型在研究中风发展和缺血半影形成的细胞和分子机制以及寻找抗中风药物方面的最新应用。