Probes for TMEM119
ACD can configure probes for the various manual and automated assays for TMEM119 for RNAscope Assay, or for Basescope Assay compatible for your species of interest.
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Nature
2019 Apr 03
Pluvinage JV, Haney MS, Smith BAH, Sun J, Iram T, Bonanno L, Li L, Lee DP, Morgens DW, Yang AC, Shuken SR, Gate D, Scott M, Khatri P, Luo J, Bertozzi CR, Bassik MC, Wyss-Coray T.
PMID: 30944478 | DOI: 10.1038/s41586-019-1088-4
Microglia maintain homeostasis in the central nervous system through phagocytic clearance of protein aggregates and cellular debris. This function deteriorates during ageing and neurodegenerative disease, concomitant with cognitive decline. However, the mechanisms of impaired microglial homeostatic function and the cognitive effects of restoring this function remain unknown. We combined CRISPR-Cas9 knockout screens with RNA sequencing analysis to discover age-related genetic modifiers of microglial phagocytosis. These screens identified CD22, a canonical B cell receptor, as a negative regulator of phagocytosis that is upregulated on aged microglia. CD22 mediates the anti-phagocytic effect of α2,6-linked sialic acid, and inhibition of CD22 promotes the clearance of myelin debris, amyloid-β oligomers and α-synuclein fibrils in vivo. Long-term central nervous system delivery of an antibody that blocks CD22 function reprograms microglia towards a homeostatic transcriptional state and improves cognitive function in aged mice. These findings elucidate a mechanism of age-related microglial impairment and a strategy to restore homeostasis in the ageing brain.
| Description | ||
|---|---|---|
| sense Example: Hs-LAG3-sense | Standard probes for RNA detection are in antisense. Sense probe is reverse complent to the corresponding antisense probe. | |
| Intron# Example: Mm-Htt-intron2 | Probe targets the indicated intron in the target gene, commonly used for pre-mRNA detection | |
| Pool/Pan Example: Hs-CD3-pool (Hs-CD3D, Hs-CD3E, Hs-CD3G) | A mixture of multiple probe sets targeting multiple genes or transcripts | |
| No-XSp Example: Hs-PDGFB-No-XMm | Does not cross detect with the species (Sp) | |
| XSp Example: Rn-Pde9a-XMm | designed to cross detect with the species (Sp) | |
| O# Example: Mm-Islr-O1 | Alternative design targeting different regions of the same transcript or isoforms | |
| CDS Example: Hs-SLC31A-CDS | Probe targets the protein-coding sequence only | |
| EnEm | Probe targets exons n and m | |
| En-Em | Probe targets region from exon n to exon m | |
| Retired Nomenclature | ||
| tvn Example: Hs-LEPR-tv1 | Designed to target transcript variant n | |
| ORF Example: Hs-ACVRL1-ORF | Probe targets open reading frame | |
| UTR Example: Hs-HTT-UTR-C3 | Probe targets the untranslated region (non-protein-coding region) only | |
| 5UTR Example: Hs-GNRHR-5UTR | Probe targets the 5' untranslated region only | |
| 3UTR Example: Rn-Npy1r-3UTR | Probe targets the 3' untranslated region only | |
| Pan Example: Pool | A mixture of multiple probe sets targeting multiple genes or transcripts | |
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