Correlation between the renal C1q deposition and serum anti-C1q antibody: a potential role of anti-C1q antibody in lupus nephritis. 2002

Pei-Chih Chen, and Chrong-Reen Wang, and Ming-Fei Liu, and Fen-Fen Chen, and Chun-Ching Liang
Section of Allergy, Immunology, and Rheumatology, Department of Internal Medicine, Chi-Mei Medical Center, College of Medicine, National Cheng Kung University, Tainan, Taiwan.

The anti-C1q antibody has been shown to be associated with lupus patients with renal involvement. We conducted a study to determine the relationship between the serum anti-C1q titer and the renal deposition of C1q. The serum anti-C1q was measured in 26 healthy controls and 47 systemic lupus erythematosus (SLE) patients who were divided into 2 groups as non-nephritis and nephritis SLE. We analyzed the relationship between the anti-C1q titers and SLE, renal C1q staining and the WHO classification for lupus nephritis. The result revealed that the serum anti-C1q was present in 50.8% of the SLE patients, that its levels in those with renal involvement were significantly higher than in the normal control group (61.540 +/- 87.720 U/ml vs 15.750 +/- 2.530 U/ml, p = 0.005). Besides, the serum anti-C1q levels were higher in the patients with lupus nephritis with C1q deposition in the kidney tissue (66.038 +/- 91.141 U/ml vs 16.652 +/- 3.097 U/ml, p < 0.01). There seems to be evidence supporting that the autoantibody anti-C1q might play a pathogenic role in lupus nephritis.

UI MeSH Term Description Entries
D007668 Kidney Body organ that filters blood for the secretion of URINE and that regulates ion concentrations. Kidneys
D008180 Lupus Erythematosus, Systemic A chronic, relapsing, inflammatory, and often febrile multisystemic disorder of connective tissue, characterized principally by involvement of the skin, joints, kidneys, and serosal membranes. It is of unknown etiology, but is thought to represent a failure of the regulatory mechanisms of the autoimmune system. The disease is marked by a wide range of system dysfunctions, an elevated erythrocyte sedimentation rate, and the formation of LE cells in the blood or bone marrow. Libman-Sacks Disease,Lupus Erythematosus Disseminatus,Systemic Lupus Erythematosus,Disease, Libman-Sacks,Libman Sacks Disease
D008181 Lupus Nephritis Glomerulonephritis associated with autoimmune disease SYSTEMIC LUPUS ERYTHEMATOSUS. Lupus nephritis is histologically classified into 6 classes: class I - normal glomeruli, class II - pure mesangial alterations, class III - focal segmental glomerulonephritis, class IV - diffuse glomerulonephritis, class V - diffuse membranous glomerulonephritis, and class VI - advanced sclerosing glomerulonephritis (The World Health Organization classification 1982). Glomerulonephritis, Lupus,Lupus Glomerulonephritis,Nephritis, Lupus,Glomerulonephritides, Lupus,Lupus Glomerulonephritides,Lupus Nephritides,Nephritides, Lupus
D008297 Male Males
D004797 Enzyme-Linked Immunosorbent Assay An immunoassay utilizing an antibody labeled with an enzyme marker such as horseradish peroxidase. While either the enzyme or the antibody is bound to an immunosorbent substrate, they both retain their biologic activity; the change in enzyme activity as a result of the enzyme-antibody-antigen reaction is proportional to the concentration of the antigen and can be measured spectrophotometrically or with the naked eye. Many variations of the method have been developed. ELISA,Assay, Enzyme-Linked Immunosorbent,Assays, Enzyme-Linked Immunosorbent,Enzyme Linked Immunosorbent Assay,Enzyme-Linked Immunosorbent Assays,Immunosorbent Assay, Enzyme-Linked,Immunosorbent Assays, Enzyme-Linked
D005260 Female Females
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328 Adult A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available. Adults
D001323 Autoantibodies Antibodies that react with self-antigens (AUTOANTIGENS) of the organism that produced them. Autoantibody
D015922 Complement C1q A subcomponent of complement C1, composed of six copies of three polypeptide chains (A, B, and C), each encoded by a separate gene (C1QA; C1QB; C1QC). This complex is arranged in nine subunits (six disulfide-linked dimers of A and B, and three disulfide-linked homodimers of C). C1q has binding sites for antibodies (the heavy chain of IMMUNOGLOBULIN G or IMMUNOGLOBULIN M). The interaction of C1q and immunoglobulin activates the two proenzymes COMPLEMENT C1R and COMPLEMENT C1S, thus initiating the cascade of COMPLEMENT ACTIVATION via the CLASSICAL COMPLEMENT PATHWAY. C1q Complement,Complement 1q,Complement Component 1q,C1q, Complement,Complement, C1q,Component 1q, Complement

Related Publications

Pei-Chih Chen, and Chrong-Reen Wang, and Ming-Fei Liu, and Fen-Fen Chen, and Chun-Ching Liang
April 2010, The Journal of rheumatology,
Pei-Chih Chen, and Chrong-Reen Wang, and Ming-Fei Liu, and Fen-Fen Chen, and Chun-Ching Liang
April 2002, The Journal of rheumatology,
Pei-Chih Chen, and Chrong-Reen Wang, and Ming-Fei Liu, and Fen-Fen Chen, and Chun-Ching Liang
September 2009, Annals of the New York Academy of Sciences,
Pei-Chih Chen, and Chrong-Reen Wang, and Ming-Fei Liu, and Fen-Fen Chen, and Chun-Ching Liang
February 2005, Expert opinion on biological therapy,
Pei-Chih Chen, and Chrong-Reen Wang, and Ming-Fei Liu, and Fen-Fen Chen, and Chun-Ching Liang
October 2011, Lupus,
Pei-Chih Chen, and Chrong-Reen Wang, and Ming-Fei Liu, and Fen-Fen Chen, and Chun-Ching Liang
March 2005, Annals of the rheumatic diseases,
Pei-Chih Chen, and Chrong-Reen Wang, and Ming-Fei Liu, and Fen-Fen Chen, and Chun-Ching Liang
January 2020, Saudi journal of kidney diseases and transplantation : an official publication of the Saudi Center for Organ Transplantation, Saudi Arabia,
Pei-Chih Chen, and Chrong-Reen Wang, and Ming-Fei Liu, and Fen-Fen Chen, and Chun-Ching Liang
March 2013, BMC nephrology,
Pei-Chih Chen, and Chrong-Reen Wang, and Ming-Fei Liu, and Fen-Fen Chen, and Chun-Ching Liang
January 2004, Clinical and experimental immunology,
Pei-Chih Chen, and Chrong-Reen Wang, and Ming-Fei Liu, and Fen-Fen Chen, and Chun-Ching Liang
March 2001, American journal of kidney diseases : the official journal of the National Kidney Foundation,
Copied contents to your clipboard!