Cited by 79Neuroinflammation and Neurodegeneration MechanismsNeurological Disease Mechanisms and TreatmentsInflammasome and immune disorders

Characteristic microglial features in patients with hereditary diffuse leukoencephalopathy with spheroids

Tada, Mari, Konno, Takuya, Tada, Masayoshi, Tezuka, Toshiyuki, Miura, Takeshi, Mezaki, Naomi, Okazaki, Ken‐ichi, Arakawa, Musashi +14 more·2016·Annals of Neurology

Abstract

Objective To clarify the histopathological alterations of microglia in the brains of patients with hereditary diffuse leukoencephalopathy with spheroids (HDLS) caused by mutations of the gene encoding the colony stimulating factor-1 receptor (CSF-1R). Methods We examined 5 autopsied brains and 1 biopsy specimen from a total of 6 patients with CSF-1R mutations. Detailed immunohistochemical, biochemical, and ultrastructural features of microglia were examined, and quantitative analyses were performed. Results In layers 3 to 4 of the frontal cortex in HDLS brains, microglia showed relatively uniform and delicate morphology, with thin and winding processes accompanying knotlike structures, and significantly smaller areas of Iba1 immunoreactivity and lower numbers of Iba1-positive cells were evident in comparison with control brains. On the other hand, in layers 5 to 6 and the underlying white matter, microglia were distributed unevenly; that is, in some areas they had accumulated densely, whereas in others they were scattered. Immunoblot analyses of microglia-associated proteins, including CD11b and DAP12, revealed that HDLS brains had significantly lower amounts of these proteins than diseased controls, although Ki-67-positive proliferative microglia were not reduced. Ultrastructurally, the microglial cytoplasm and processes in HDLS showed vesiculation of the rough endoplasmic reticulum and disaggregated polyribosomes, indicating depression of protein synthesis. On the other han…

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Crossref · 10.1002/ana.24754

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  • In the HDLS cohort, the study observed an abnormal distribution of microglia, corroborating data from a previous study in a Japanese cohort.

    “In our HDLS cohort, we observed an abnormal distribution of microglia, corroborating data from a previous study in a Japanese cohort [50].”
  • The study's results are in agreement with previous data in a small Japanese cohort of HDLS cases that illustrated similar pathologic hallmarks.

    “These results are in agreement with previous data in a small Japanese cohort of HDLS cases that illustrated similar pathologic hallmarks [50].”

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Authors
Tada, M., Konno, T., Tada, M., Tezuka, T., Miura, T., Mezaki, N., Okazaki, K., Arakawa, M., Itoh, K., Yamamoto, T., Yokoo, H., Yoshikura, N., Ishihara, K., Horie, M., Takebayashi, H., Toyoshima, Y., Naito, M., Onodera, O., Nishizawa, M., Takahashi, H., Ikeuchi, T., & Kakita, A.
Affiliations
  • Brain Research Institute, Niigata University (JP)
  • Kyoto Prefectural University of Medicine (JP)
  • Saiseikai Nakatsu Hospital (JP)
  • Gunma University (JP)
  • Gifu University (JP)
  • SHOWA Medical University (JP)
  • Niigata University (JP)
  • Niigata Medical Center (JP)
Corresponding author
Tada, Mari
Venue
Annals of Neurology
Publisher
Wiley
Published
2016-09-04
Volume
80
Issue
4
Pages
554-565
ISSN
  • 0364-5134 (ISSN-L)
  • 1531-8249
OpenAlex
W2514150090
Cited by
70
References
31
Citations by year
2025: 7 · 2024: 20 · 2023: 4 · 2022: 6 · 2021: 10 · 2020: 10 · 2019: 6 · 2018: 5 · 2017: 2
FWCI
2.37
Type
journal article
Language
en
Open access
closed
Locations
  • Annals of Neurology (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • JSPS KAKENHI (25430048, 26117506, 25250008)
  • Grant-in-Aid for Scientific Research on Innovative Areas
Topics
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
  • Life Sciences › Neuroscience › Neurology › Neurological Disease Mechanisms and Treatments
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Inflammasome and immune disorders
Keywords
hereditary diffuse leukoencephalopathy with spheroids, microglia, Iba1, CD11b, DAP12, rough endoplasmic reticulum, macrophage origin, bone marrow-derived macrophages, frontal cortex, white matter
MeSH terms
Autopsy, Biopsy, Cerebellar Cortex, Frontal Lobe, Humans, Receptor, Macrophage Colony-Stimulating Factor, Microglia, Leukoencephalopathies, White Matter

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