Altered features of monocytes in adult onset leukoencephalopathy with axonal spheroids and pigmented glia: A clue to the pathomechanism of microglial dyshomeostasis

Autor: Mio Hamatani, Hirofumi Yamashita, Hirofumi Ochi, Shinji Ashida, Yuichiro Hashi, Yoichiro Okada, Chihiro Fujii, Kazuyuki Kawamura, Riko Kitazawa, Masanori Nakagawa, Toshiki Mizuno, Ryosuke Takahashi, Takayuki Kondo
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: Neurobiology of Disease, Vol 140, Iss , Pp 104867- (2020)
Druh dokumentu: article
ISSN: 1095-953X
DOI: 10.1016/j.nbd.2020.104867
Popis: Adult-onset leukoencephalopathy with axonal spheroids and pigmented glia (ALSP) is an autosomal-dominant type of leukoencephalopathy caused by gene mutation of colony stimulating factor 1 receptor, which is expressed mainly on monocyte lineage cells such as monocytes in the peripheral blood and microglia in the brain. Hence, microglial dysfunction is regarded as critical in the pathogenesis of ALSP. However, functional changes in these cells have not been elucidated. In this study, we report the phenotypic and functional alterations of monocytes in four patients with ALSP. Flow cytometric analysis revealed altered expression of antigen presentation- and migration-related molecules, an inflammatory shift in cytokine production and phagocytic impairment in ALSP monocytes. We speculate that the observed altered features of monocytes are mostly shared by microglial cells, leading to the clinical history and pathological characteristics of ALSP. Our analysis of PB monocytes provides novel insights into the pathogenesis of ALSP.
Databáze: Directory of Open Access Journals