Systemic Lupus Erythematosus
Conditions
Keywords
Janus-kinase3, active, lupus
Brief summary
One of the best understood mechanisms by which cytokines activate signals, thus eliciting specific responses in target cells, involves enzymes such as Janus kinases (JAKs) and transcriptional factors such as signal transducers and activators of transcription (STATs). For immune mediated diseases, both activating and inactivating mutations of JAKs and STATs may cause abnormalities in immune homeostasis. Polymorphisms of JAK/STAT genes have been linked to susceptibility for rheumatoid arthritis (RA) , systemic lupus erythematosus (SLE), psoriatic arthritis (PA) and inflammatory bowel disease (IBD) . Janus\_kinase 3 expression will be evaluated in the serum and renal tissue of lupus patients during active stage of the disease through this study
Detailed description
Investigators will assess the relationship between the expression of Janus\_kinase 3 and the clinical and laboratory parameters of disease activity . Disease activity will be assessed through the Systemic Lupus Erythematosus Disease Activity Index (SLEDAI). Also, investigators will evaluate the relationship between Janus\_ kinase 3 expression and histopathological classes of lupus nephritis according to the 2003 International Society of Nephrology/ Renal Pathology Society (ISN/RPS) classification of lupus nephritis. This will be done through Janus\_kinase 3 assessment in the blood and renal tissue of lupus patients.
Interventions
renal biopsy and blood sampling will be taken from lupus patients for evaluation of Janus-kinase 3
Sponsors
Study design
Eligibility
Inclusion criteria
* Age younger than 16 years. * Active disease stage * Patients with biopsy proven lupus nephritis according to ISN/RPS classification criteria of lupus nephritis
Exclusion criteria
* Lupus patients in remission. * Lupus patients with end stage renal disease. * Lupus patients with secondary thrombotic thrombocytopenic purpura (TTP) and hemolytic uremic syndrome (HUS). * patients with moderate or severe infection
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Janus-kinase 3 expression | within 2 years | evaluation of Janus-kinase 3 expression in blood and renal tissue of lupus patients during active stage of disease |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| correlation | 2 years | relationship between Janus- kinase expression and clinical and laboratory parameters of disease activity |
Other
| Measure | Time frame | Description |
|---|---|---|
| correlation | 2 years | relationship between Janus-kinase 3 expression and histopathological classification of renal biopsy in lupus nephritis proven patients |