PMID- 33064961 OWN - NLM STAT- MEDLINE DCOM- 20210928 LR - 20210928 IS - 1208-6002 (Electronic) IS - 0829-8211 (Linking) VI - 99 IP - 3 DP - 2021 Jun TI - Blockade of anti-dsDNA ameliorates systemic lupus erythematosus in MRL/Faslpr mice through ameliorating inflammation via the PKCdelta-NLRC4 axis. PG - 313-321 LID - 10.1139/bcb-2020-0265 [doi] AB - Anti-double-stranded DNA (anti-dsDNA) is closely associated with the inflammatory burden in the brain after ischemic stroke. Here, we studied the inflammatory cascade and investigated the mechanisms behind the pro-inflammatory role of dsDNA in systemic lupus erythematosus (SLE). The serum levels of interleukin-1beta (IL-1beta) and IL-6 in SLE patients and the corresponding controls were evaluated using ELISA, and the expression level of caspase-1 was evaluated using quantitative real-time polymerase chain reaction (qRT-PCR). We found that the serum levels of IL-1beta and IL-6 were increased in the SLE patients. The expression of caspase-1 was upregulated and positively correlated with the levels of pro-inflammatory factors. The level of anti-dsDNA was also elevated and positively correlated with the results for the mean fluorescence intensity (MFI) of caspase-1. Additionally, we evaluated the functions of PRKCD encoding protein kinase c delta (PKCdelta) and NLRC4, in vivo, in MRL/Faslpr mice. We found that renal injury was aggravated, and the levels of pro-inflammatory factors were increased in the MRL/Faslpr mice. We also found that increased levels of NLRC4 in the mice exacerbated renal injury and increased the levels of pro-inflammatory factors, whereas inhibition of PKCdelta had the opposite results. These findings provide unique perspectives on pathogenesis of SLE and indicate that inhibition of anti-dsDNA could attenuate renal inflammatory burden, representing a promising therapeutic opportunity for SLE. FAU - Yang, Fan AU - Yang F AD - Department of Dermatology, the Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710004, Shaanxi, P.R. China. AD - Department of Plastic Surgery and Burns, Taihe Hospital, Hubei University of Medicine, Shiyan 442000, Hubei, P.R. China. FAU - Yang, Yinhui AU - Yang Y AD - Department of Plastic Surgery and Burns, Taihe Hospital, Hubei University of Medicine, Shiyan 442000, Hubei, P.R. China. FAU - Zeng, Weihui AU - Zeng W AD - Department of Dermatology, the Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710004, Shaanxi, P.R. China. LA - eng PT - Journal Article DEP - 20201016 PL - Canada TA - Biochem Cell Biol JT - Biochemistry and cell biology = Biochimie et biologie cellulaire JID - 8606068 RN - 0 (Antibodies, Antinuclear) RN - 0 (CARD Signaling Adaptor Proteins) RN - 0 (Calcium-Binding Proteins) RN - 0 (NLRC4 protein, human) RN - 9007-49-2 (DNA) RN - EC 2.7.11.13 (Protein Kinase C-delta) SB - IM MH - Adult MH - Animals MH - Antibodies, Antinuclear/*chemistry/immunology MH - CARD Signaling Adaptor Proteins/genetics/*metabolism MH - Calcium-Binding Proteins/genetics/*metabolism MH - Case-Control Studies MH - DNA/*immunology MH - *Disease Models, Animal MH - Female MH - Humans MH - Inflammation/immunology/metabolism/pathology/*prevention & control MH - Lupus Erythematosus, Systemic/immunology/metabolism/pathology/*prevention & control MH - Male MH - Mice MH - Mice, Inbred MRL lpr MH - Protein Kinase C-delta/genetics/*metabolism OTO - NOTNLM OT - NLRC4 inflammasome OT - PKCdelta OT - anticorps contre l'ADN double brin OT - dommage renal OT - double-stranded DNA antibody OT - inflammasome NLRC4 OT - lupus erythemateux dissemine OT - renal injury OT - systemic lupus erythematosus EDAT- 2020/10/17 06:00 MHDA- 2021/09/29 06:00 CRDT- 2020/10/16 20:09 PHST- 2020/10/17 06:00 [pubmed] PHST- 2021/09/29 06:00 [medline] PHST- 2020/10/16 20:09 [entrez] AID - 10.1139/bcb-2020-0265 [doi] PST - ppublish SO - Biochem Cell Biol. 2021 Jun;99(3):313-321. doi: 10.1139/bcb-2020-0265. Epub 2020 Oct 16.