Hu, Xiaofan* Dotaz Zobrazit nápovědu
Salmonella enteritidis infection occurs in enterogenous diseases, such as gastroenteritis and parenteral focal infection, which often involve inflammation of intestinal epithelial cells. The nuclear factor kappa B (NF-κB) pathway participates in the innate immune response to many gram-negative pathogenic bacteria and initiates inflammation in epithelial cells. KH-type splicing regulatory protein (KSRP) is a multi-domain RNA-binding protein that recruits the exosome-containing mRNA degradation complex to mRNAs coding for inflammatory response factors. However, it remains unclear whether KSRP is regulated by NF-κB signaling pathway in response to S. enteritidis infection and affects the development of inflammation. Accordingly, in this study, we investigated the role of KSRP in mediating the response to S. enteritidis in Caco-2 cells. The data revealed that S. enteritidis infection decreased KSRP expression, which was suppressed by blocking the NF-κB pathway. Additionally, S. enteritidis infection significantly increased the expression of inducible nitric oxide synthase and cyclooxygenase-2. Overexpression of KSRP reduced the expression levels of inflammatory factors in Caco-2 cells. KSRP was regulated by the NF-κB signaling pathway and participated in mediating the innate immune response to S. enteritidis infection in Caco-2 cells, and KSRP acted as a negative regulator of inflammatory gene expression.
- MeSH
- biologické markery MeSH
- biologické modely MeSH
- Caco-2 buňky MeSH
- exprese genu MeSH
- kultivované buňky MeSH
- lidé MeSH
- mediátory zánětu MeSH
- NF-kappa B metabolismus MeSH
- přirozená imunita * MeSH
- proteiny vázající RNA genetika metabolismus MeSH
- regulace genové exprese MeSH
- Salmonella enteritidis fyziologie MeSH
- salmonelóza genetika imunologie metabolismus mikrobiologie MeSH
- signální transdukce * MeSH
- trans-aktivátory genetika metabolismus MeSH
- Check Tag
- lidé MeSH
- Publikační typ
- časopisecké články MeSH
- MeSH
- cyklofosfamid aplikace a dávkování škodlivé účinky terapeutické užití MeSH
- glukokortikoidy aplikace a dávkování škodlivé účinky terapeutické užití MeSH
- hemofilie A * farmakoterapie MeSH
- kombinovaná farmakoterapie MeSH
- lidé MeSH
- methylprednisolon aplikace a dávkování terapeutické užití MeSH
- rituximab aplikace a dávkování terapeutické užití MeSH
- Check Tag
- lidé MeSH
- Publikační typ
- multicentrická studie MeSH
- práce podpořená grantem MeSH
- randomizované kontrolované studie MeSH
Membranous Nephropathy (MN) is a rare autoimmune cause of kidney failure. Here we report a genome-wide association study (GWAS) for primary MN in 3,782 cases and 9,038 controls of East Asian and European ancestries. We discover two previously unreported loci, NFKB1 (rs230540, OR = 1.25, P = 3.4 × 10-12) and IRF4 (rs9405192, OR = 1.29, P = 1.4 × 10-14), fine-map the PLA2R1 locus (rs17831251, OR = 2.25, P = 4.7 × 10-103) and report ancestry-specific effects of three classical HLA alleles: DRB1*1501 in East Asians (OR = 3.81, P = 2.0 × 10-49), DQA1*0501 in Europeans (OR = 2.88, P = 5.7 × 10-93), and DRB1*0301 in both ethnicities (OR = 3.50, P = 9.2 × 10-23 and OR = 3.39, P = 5.2 × 10-82, respectively). GWAS loci explain 32% of disease risk in East Asians and 25% in Europeans, and correctly re-classify 20-37% of the cases in validation cohorts that are antibody-negative by the serum anti-PLA2R ELISA diagnostic test. Our findings highlight an unusual genetic architecture of MN, with four loci and their interactions accounting for nearly one-third of the disease risk.
- MeSH
- alely MeSH
- Asijci genetika MeSH
- běloši genetika MeSH
- celogenomová asociační studie * MeSH
- interferonové regulační faktory genetika MeSH
- jednonukleotidový polymorfismus MeSH
- lidé MeSH
- membranózní glomerulonefritida diagnóza genetika imunologie MeSH
- molekulární modely MeSH
- NF-kappa B - podjednotka p50 genetika MeSH
- receptory pro fosfolipasy A2 genetika MeSH
- sekvence aminokyselin MeSH
- studie případů a kontrol MeSH
- Check Tag
- lidé MeSH
- Publikační typ
- časopisecké články MeSH
- metaanalýza MeSH
- práce podpořená grantem MeSH
- Research Support, N.I.H., Extramural MeSH