MANNOSE BINDING LECTIN SERUM LEVEL AND GENE POLYMORPHISM IN PATIENTS WITH SLE AND ITS RELATION TO THE DEVELOPMENT OF LUPUS NEPHRITIS

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OKASHA KAMAL; SHAHBA ABEER; NOOR ELDEEN NASHWA M.; HASSAN AZZA M.; EL SAADANY HANAN; EL BENDARY AMAL

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Journal Paper

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Journal: Nephro-Urology Monthly Year:2010 | Volume:2 | Issue:3 Page(s): 401-413

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Title

MANNOSE BINDING LECTIN SERUM LEVEL AND GENE POLYMORPHISM IN PATIENTS WITH SLE AND ITS RELATION TO THE DEVELOPMENT OF LUPUS NEPHRITIS

Author(s)

Keywords

MANNOSE-BINDING LECTIN (MBL)

SYSTEMIC LUPUS ERYTHEMATOSUS (SLE)

LUPUS NEPHRITIS (LN)

GENE POLYMORPHISM

Abstract

Background and Aims: Systemic lupus erythematosus (SLE) is an autoimmune disease in which the complement system plays a crucial role in its pathogenesis. Mannan-binding lectin (MBL) is a recognition molecule of the lectin pathway of complement activation. The presence of several polymorphisms at the promoter and coding regions of the MBL-2 gene determines alterations in MBL serum concentration. MBL variant alleles that lead to low serum levels and/or functional deficits of MBL are postulated to contribute to the susceptibility of SLE. Moreover, the influence of MBL variation on antibody production and renal involvement in SLE patients remains controversial. Therefore, MBL serum level and genotypes were studied in our SLE Egyptian patients with evaluation of its role in auto antibodies production and lupus nephritis development.Methods: MBL genotypes and serum level were screened in a case control study that included 30 SLE patients as well as 30 healthy controls. MBL polymorphism at exon 1 codons 54 and 57 was detected by PCR using sequence-specific priming (SSP) and serum MBL level was determined by ELISA technique.Results: There was predominance of AA genotype (80%) in control group. Genotype frequencies of MBL variants in patients with SLE showed significant differences when compared with controls (AA 53.3% vs 80%, P=0.03, OR=0.29 and AO+OO 46.6% vs 20%, P=0.03, OR=3.5, respectively). Serum MBL in our SLE patients (900 ng/ml) was significantly lower than that of the control group (2750 ng/ml, P=0.00) with positive correlation with low MBL genotypes. SLE patients with mutant alleles were more likely to produce anti dsDNA (92.8% vs 75%, OR=4.3) and anti-Smith (35.7% vs 18.7%, OR=2.3). Patients carrying MBL-low genotypes have an increased risk of development of lupus nephritis than those carrying MBL-high genotype (64.7% vs 35.2%, P=0.02, OR=2.4). Conclusions: MBL GENE POLYMORPHISM is associated with low MBL serum levels that were found with significantly increased frequency in our SLE patients and it may be one of the genetic factors that determine the susceptibility to develop lupus nephritis.

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APA: Copy

OKASHA, KAMAL, SHAHBA, ABEER, NOOR ELDEEN, NASHWA M., HASSAN, AZZA M., EL SAADANY, HANAN, & EL BENDARY, AMAL. (2010). MANNOSE BINDING LECTIN SERUM LEVEL AND GENE POLYMORPHISM IN PATIENTS WITH SLE AND ITS RELATION TO THE DEVELOPMENT OF LUPUS NEPHRITIS. THE JOURNAL OF NEPHRO-UROLOGY MONTHLY, 2(3), 401-413. SID. https://sid.ir/paper/323719/en

Vancouver: Copy

OKASHA KAMAL, SHAHBA ABEER, NOOR ELDEEN NASHWA M., HASSAN AZZA M., EL SAADANY HANAN, EL BENDARY AMAL. MANNOSE BINDING LECTIN SERUM LEVEL AND GENE POLYMORPHISM IN PATIENTS WITH SLE AND ITS RELATION TO THE DEVELOPMENT OF LUPUS NEPHRITIS. THE JOURNAL OF NEPHRO-UROLOGY MONTHLY[Internet]. 2010;2(3):401-413. Available from: https://sid.ir/paper/323719/en

IEEE: Copy

KAMAL OKASHA, ABEER SHAHBA, NASHWA M. NOOR ELDEEN, AZZA M. HASSAN, HANAN EL SAADANY, and AMAL EL BENDARY, “MANNOSE BINDING LECTIN SERUM LEVEL AND GENE POLYMORPHISM IN PATIENTS WITH SLE AND ITS RELATION TO THE DEVELOPMENT OF LUPUS NEPHRITIS,” THE JOURNAL OF NEPHRO-UROLOGY MONTHLY, vol. 2, no. 3, pp. 401–413, 2010, [Online]. Available: https://sid.ir/paper/323719/en

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