Mohammadi R, Heidari M H, Sadeghi Y, Abdollahifar M A, Aghaei A
Department of Anatomy, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran, Islamic Republic Of; Hearing Disorder Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran, Islamic Republic Of.
Folia Morphol (Warsz). 2018;77(2):194-200. doi: 10.5603/FM.a2017.0091. Epub 2017 Oct 24.
Purkinje cells (PCs) pathology is important in cerebellar disorders like ataxia. The spatial arrangement of PCs after different treatments has not been studied extensively. Immunohistochemistry (IHC) analysis of cerebellum can give a proper tool for explaining the pathophysiology of PCs in ataxia. Here we stereologically analysed the 3-dimensional spatial arrangement of PCs in the cerebellum of rats after ataxia induction with 3-acetylpyridine (3-AP).
Ataxia was induced in rats by intraperitoneal injection of 3-AP (65 mg/kg). Spatial arrangement of PCs for differences in ataxic rats with (3-AP-SC) or without (3-AP) Sertoli cells (SCs) transplantation was evaluated using second-order stereology. The IHC method by using antibodies to anti-calbindin in the cerebellum was applied.
Our results showed that a random arrangement is at larger distances between PCs in 3-AP and 3-Ap-SC groups. Therefore the PCs are not normally arranged after 3-AP and SCs transplantation stored the spatial arrangements of the cells after ataxia induction in rats. IHC analyse shows that number of PCs was significantly improved after the SC transplantation.
Segregation of PCs can be observed at some areas in the ataxic rats' cerebellum. However, the spatial arrangement of PCs was unchanged in SCs transplanted rats. (Folia Morphol 2018; 77, 2: 194-200).
浦肯野细胞(PCs)病理学在共济失调等小脑疾病中很重要。不同处理后PCs的空间排列尚未得到广泛研究。小脑的免疫组织化学(IHC)分析可为解释共济失调中PCs的病理生理学提供合适的工具。在此,我们用体视学方法分析了用3-乙酰吡啶(3-AP)诱导共济失调后大鼠小脑中PCs的三维空间排列。
通过腹腔注射3-AP(65mg/kg)诱导大鼠共济失调。使用二阶体视学评估有(3-AP-SC)或无(3-AP)支持细胞(SCs)移植的共济失调大鼠中PCs的空间排列差异。应用在小脑中使用抗钙结合蛋白抗体的免疫组织化学方法。
我们的结果表明,在3-AP组和3-Ap-SC组中,PCs之间距离较大时呈随机排列。因此,3-AP处理后PCs排列不正常,而SCs移植保留了大鼠共济失调诱导后细胞的空间排列。免疫组织化学分析表明,SCs移植后PCs数量显著增加。
在共济失调大鼠小脑的某些区域可观察到PCs的分离。然而,SCs移植大鼠中PCs的空间排列没有变化。(《形态学杂志》2018年;77卷,第2期:194 - 200页)