Article ; Online: Long non-coding RNA HOTAIR knockdown alleviates gouty arthritis through miR-20b upregulation and NLRP3 downregulation.
2021 Volume 20, Issue 3, Page(s) 332–344
Abstract: This study aimed to determine the mechanism underlying the regulation of gout by the HOX transcript antisense RNA (HOTAIR) long non-coding RNA (lncRNA). The expression levels of HOTAIR, miR-20b, and Nlrp3 were estimated by qRT-PCR and western blotting. ... ...
Abstract | This study aimed to determine the mechanism underlying the regulation of gout by the HOX transcript antisense RNA (HOTAIR) long non-coding RNA (lncRNA). The expression levels of HOTAIR, miR-20b, and Nlrp3 were estimated by qRT-PCR and western blotting. The methylation level of HOTAIR was detected by methylation-specific PCR. The recruitment of DNA methyltransferase 1 (DNMT1) to the lncRNA HOTAIR promoter was confirmed by a ChIP assay. RNA immunoprecipitation and RNA pull-down assays were used to confirm the interaction between HOTAIR and miR-20b. LncRNA HOTAIR and Nlrp3 expression was upregulated, and that of miR-20b was downregulated in synovial fluid mononuclear cells (SFMCs) collected from patients with gouty arthritis and monosodium urate (MSU)-stimulated THP-1 cells. Interleukin (IL)-1β level increased substantially upon stimulation by MSU crystals. The methylation percentage of HOTAIR was reduced in SFMCs from patients with gouty arthritis and MSU-stimulated THP-1 cells. DNMT1 expression was downregulated in MSU-stimulated THP-1 cells, and DNMT1 knockdown increased lncRNA HOTAIR expression. In addition, the interaction of HOTAIR with miR-20b was confirmed. HOTAIR knockdown suppressed Nlrp3 expression and the secretion of inflammatory cytokines |
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MeSH term(s) | Aged ; Animals ; Arthritis, Gouty/genetics ; Arthritis, Gouty/metabolism ; Down-Regulation/physiology ; Female ; Gene Knockdown Techniques/methods ; Humans ; Male ; Mice ; Mice, Inbred C57BL ; MicroRNAs/biosynthesis ; MicroRNAs/genetics ; Middle Aged ; NLR Family, Pyrin Domain-Containing 3 Protein/antagonists & inhibitors ; NLR Family, Pyrin Domain-Containing 3 Protein/biosynthesis ; NLR Family, Pyrin Domain-Containing 3 Protein/genetics ; RNA, Long Noncoding/antagonists & inhibitors ; RNA, Long Noncoding/biosynthesis ; RNA, Long Noncoding/genetics ; THP-1 Cells ; Up-Regulation/physiology |
Chemical Substances | HOTAIR long untranslated RNA, human ; MIRN20b microRNA, human ; MicroRNAs ; NLR Family, Pyrin Domain-Containing 3 Protein ; NLRP3 protein, human ; RNA, Long Noncoding |
Language | English |
Publishing date | 2021-01-20 |
Publishing country | United States |
Document type | Journal Article ; Research Support, Non-U.S. Gov't |
ZDB-ID | 2146183-1 |
ISSN | 1551-4005 ; 1538-4101 ; 1554-8627 |
ISSN (online) | 1551-4005 |
ISSN | 1538-4101 ; 1554-8627 |
DOI | 10.1080/15384101.2021.1874696 |
Database | MEDical Literature Analysis and Retrieval System OnLINE |
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