Transcriptome of microglia reveals a species-specific expression profile in bovines with conserved and new signature genes.
F13A1
MDM
P2RY12
TMEM119
in-vitro model
microglia
monocytes
Journal
Glia
ISSN: 1098-1136
Titre abrégé: Glia
Pays: United States
ID NLM: 8806785
Informations de publication
Date de publication:
08 2021
08 2021
Historique:
revised:
22
03
2021
received:
11
01
2021
accepted:
23
03
2021
pubmed:
4
4
2021
medline:
11
3
2022
entrez:
3
4
2021
Statut:
ppublish
Résumé
Evidence is growing that microglia adopt different roles than monocyte-derived macrophages (MDM) during CNS injury. However, knowledge about their function in the pathogenesis of neuroinfections is only rudimentary. Cattle are frequently affected by neuroinfections that are either zoonotic or related to diseases in humans, and, hence, studies of bovine neuroinfections as a natural disease model may generate fundamental data on their pathogenesis potentially translatable to humans. We investigated the transcriptomic landscape and lineage markers of bovine microglia and MDM. Although bovine microglia expressed most microglial signature genes known from humans and mice, they exhibited a species-specific transcriptomic profile, including strikingly low expression of TMEM119 and enrichment of the two scavenger receptors MEGF10 and LY75. P2RY12 was amongst the most enriched genes in bovine microglia, and antibodies against P2RY12 labeled specifically resting microglia, but also reactive microglia within neuroinfection foci in-situ. On the other hand, F13A1 was amongst the most enriched genes in bovine monocytes and MDM and, additionally, the encoded protein was expressed in-situ in monocytes and MDM in the inflamed brain but not in microglia, making it a promising marker for infiltrating MDM in the brain. In culture, primary bovine microglia downregulated signature genes, expressed markers of activation, and converged their transcriptome to MDM. However, they retained several microglia signature genes that clearly distinguished them from bovine MDM, making them a promising in-vitro tool to study mechanisms of microglia-pathogen interactions.
Substances chimiques
Megf10 protein, mouse
0
Membrane Proteins
0
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
1932-1949Informations de copyright
© 2021 Wiley Periodicals LLC.
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