BTG3 and systemic lupus erythematosus: The most widely used classification criteria for SLE was established by the American College of Rheumatology (ACR) and contains laboratory biomarkers, including proteinuria, urinary casts, hemolytic anemia with reticulocytosis, white blood cells, lymphocytes, platelets, the presence of Smith (Sm) antibody, antinuclear antibody (ANA), DNA antibody, total complement activity, complement (2, 3, and 4), and lupus erythematosus (LE) cells [16].