癫痫的透明质星形细胞病。

IF 1.3 4区 医学 Q4 CLINICAL NEUROLOGY
Neuropathology Pub Date : 2023-12-01 Epub Date: 2023-05-17 DOI:10.1111/neup.12909
Shino Magaki, Mohammad Haeri, Linda J Szymanski, Zesheng Chen, Ramiro Diaz, Christopher K Williams, Julia W Chang, Yan Ao, Kathy L Newell, Negar Khanlou, William H Yong, Aria Fallah, Noriko Salamon, Tarek Daniel, Jennifer Cotter, Debra Hawes, Michael Sofroniew, Harry V Vinters
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引用次数: 0

摘要

透明质星形细胞病(HPA)描述了一种罕见的组织学发现,星形细胞中嗜酸性,透明质包涵体,主要发生在大脑皮层。它主要见于有发育迟缓和癫痫史的儿童和成人,经常伴有局灶性皮质发育不良(FCD),但这些包涵体的性质和意义尚不清楚。在本研究中,我们回顾了HPA的临床和病理特征,并对5例顽固性癫痫和HPA患者的手术切除标本中所见的包涵体和脑组织进行了表征,这些包涵体是用免疫组织化学方法检测丝蛋白A的,丝蛋白A先前被证明可以标记这些包涵体,以及各种星形细胞标记物,包括醛脱氢酶1家族成员L1 (ALDH1L1),SRY-Box转录因子9 (SOX9)和谷氨酸转运蛋白1/兴奋性氨基酸转运蛋白2 (GLT-1/EAAT2)蛋白。包涵体ALDH1L1阳性,在胶质细胞增生区域ALDH1L1表达增加。SOX9在包涵体中也呈阳性,但强度低于星形胶质细胞核。丝蛋白A标记包涵体,但也标记反应性星形胶质细胞的一部分患者。包涵体对各种星形细胞标志物和丝蛋白A的免疫反应性,以及反应性星形细胞中丝蛋白A的阳性,提高了这些星形细胞包涵体可能是一种不常见的反应性或退行性现象的结果的可能性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Hyaline protoplasmic astrocytopathy in epilepsy.

Hyaline protoplasmic astrocytopathy (HPA) describes a rare histologic finding of eosinophilic, hyaline cytoplasmic inclusions in astrocytes, predominantly in the cerebral cortex. It has mainly been observed in children and adults with a history of developmental delay and epilepsy, frequently with focal cortical dysplasia (FCD), but the nature and significance of these inclusions are unclear. In this study, we review the clinical and pathologic features of HPA and characterize the inclusions and brain tissue in which they are seen in surgical resection specimens from five patients with intractable epilepsy and HPA compared to five patients with intractable epilepsy without HPA using immunohistochemistry for filamin A, previously shown to label these inclusions, and a variety of astrocytic markers including aldehyde dehydrogenase 1 family member L1 (ALDH1L1), SRY-Box Transcription Factor 9 (SOX9), and glutamate transporter 1/excitatory amino acid transporter 2 (GLT-1/EAAT2) proteins. The inclusions were positive for ALDH1L1 with increased ALDH1L1 expression in areas of gliosis. SOX9 was also positive in the inclusions, although to a lesser intensity than the astrocyte nuclei. Filamin A labeled the inclusions but also labeled reactive astrocytes in a subset of patients. The immunoreactivity of the inclusions for various astrocytic markers and filamin A as well as the positivity of filamin A in reactive astrocytes raise the possibility that these astrocytic inclusions may be the result of an uncommon reactive or degenerative phenomenon.

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来源期刊
Neuropathology
Neuropathology 医学-病理学
CiteScore
4.10
自引率
4.30%
发文量
105
审稿时长
6-12 weeks
期刊介绍: Neuropathology is an international journal sponsored by the Japanese Society of Neuropathology and publishes peer-reviewed original papers dealing with all aspects of human and experimental neuropathology and related fields of research. The Journal aims to promote the international exchange of results and encourages authors from all countries to submit papers in the following categories: Original Articles, Case Reports, Short Communications, Occasional Reviews, Editorials and Letters to the Editor. All articles are peer-reviewed by at least two researchers expert in the field of the submitted paper.
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