GABAergic signaling abnormalities in a novel CLU mutation Alzheimer's disease mouse model.
Abstrak
The CLU rs11136000C mutation (CLUC) is the third most common risk factor for Alzheimer's disease (AD). However, the mechanism by which CLUC leads to abnormal GABAergic signaling in AD is unclear. To address this question, this study establishes the first chimeric mouse model of CLUC AD. Examination of grafted CLUC medial ganglionic eminence progenitors (CLUC hiMGEs) revealed increased GAD65/67 and a high frequency of spontaneous releasing events. CLUC hiMGEs also impaired cognition in chimeric mice and caused AD-related pathologies. The expression of GABA A receptor, subunit alpha 2 (Gabrα2) was higher in chimeric mice. Interestingly, cognitive impairment in chimeric mice was reversed by treatment with pentylenetetrazole, which is a GABA A receptor inhibitor. Taken together, these findings shed light on the pathogenesis of CLUC AD using a novel humanized animal model and suggest sphingolipid signaling over-activation as a potential mechanism of GABAergic signaling disorder.
Topik & Kata Kunci
Penulis (13)
Chunxia Chen
Xihe Tang
Zhaohui Lan
Wan Chen
Hua Su
Weidong Li
Yaoxuan Li
Xing Zhou
Hongyang Gao
Xinwei Feng
Ying-Zi Guo
Meicun Yao
W. Deng
Akses Cepat
- Tahun Terbit
- 2023
- Bahasa
- en
- Total Sitasi
- 6×
- Sumber Database
- Semantic Scholar
- DOI
- 10.1016/j.trsl.2023.05.003
- Akses
- Open Access ✓