Microglia deficiency accelerates prion disease but does not enhance prion accumulation in the brain
Microglia deficiency accelerates prion disease but does not enhance prion accumulation in the brain
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小胶质细胞缺乏会加速朊病毒疾病,但不会增强大脑中朊病毒的积累
DOI:
10.1101/2021.01.05.425436
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发表时间:
2021
期刊:
影响因子:
--
通讯作者:
Bradford B
中科院分区:
文献类型:
--
作者:
Bradford B
The parenchymal macrophages of the central nervous system (CNS) are known as microglia (Rio‐Hortega, 1919) and their proliferation and survival is dependent upon signaling via the colony stimulating factor 1 receptor (CSF1R)(Hume et al., 2020). Microglia have been attributed essential functions in the development and homeostasis of the CNS including synaptogenesis, neurogenesis and maturation of neuronal circuits (Prinz et al., 2019). However, mice with a Csf1r hypomorphic mutation (Csf1rΔFIRE)(Rojo et al., 2019), with 40 conditional Csf1r deletion (using Iba1‐cre)(Nakayama et al., 2018) and rats with a Csf1r null mutation (Pridans et al., 2018) each lack microglia entirely but have normal CNS development. These findings indicate that developmental roles of microglia are redundant. There is much greater evidence that microglia contribute to neuropathology (Prinz et al., 2019). Neurodegenerative diseases associated with mutations in microglia‐expressed genes such as CSF1R in humans have been referred to as microgliopathies (Hume et al., 2020).Prion diseases, or transmissible spongiform encephalopathies, are fatal progressive neurodegenerative diseases to which there are no cures. Infectious prions are considered to result from the misfolding of the host’s cellular prion protein (PrPC) into an abnormal disease‐associated isoform (PrPSc)(Prusiner, 1982). The accumulation of PrPSc within the brain is 50 accompanied by the impairment of neuronal dendritic spines and synapse structures, glial cell activation, vacuolar (spongiform) degeneration and ultimately neurodegeneration. Inhibiting the proliferation and pro‐inflammatory responses of microglia via CSF1R inhibition decelerated CNS prion disease (Gómez‐Nicola et al., 2013). Conversely, the partial depletion or deficiency in microglia was reported to enhance the accumulation of prions in the brain and accelerate the onset of clinical disease (Zhu et al., 2016, Carroll et al., 2018). However,
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DOI:
10.1097/00005072-199912000-00005
发表时间:
1999
影响因子:
3.2
作者:
Jörg Tatzelt;D. Groth;M. Torchia;S. B. Prusiner;S. DeArmond
通讯作者:
S. DeArmond
影响因子:
5.3
作者:
Bradford, Barry M.;Wijaya, Christianus A. W.;Mabbott, Neil A.
通讯作者:
Mabbott, Neil A.
DOI:
--
发表时间:
--
期刊:
--
影响因子:
--
作者:
K. Livak;Thomas D. Schmittgen
通讯作者:
K. Livak;Thomas D. Schmittgen
影响因子:
2.3
作者:
Ryuichiro Atarashi;K. Sano;K. Satoh;N. Nishida
通讯作者:
N. Nishida
影响因子:
64.8
作者:
H. Fraser;A. Dickinson
通讯作者:
A. Dickinson