RT Journal Article SR Electronic T1 IgA nephropathy: Update on pathogenesis and treatment JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP 373 OP 383 DO 10.3949/ccjm.92a.24105 VO 92 IS 6 A1 Ramsawak, Seshma A1 Cohen, Scott A1 Linares, Andrea A1 Cavanaugh, Corey YR 2025 UL http://www.ccjm.org/content/92/6/373.abstract AB The pathogenesis of immunoglobulin (Ig) A nephropathy is described through a “4-hit” model involving production of galactose-deficient IgA, production of autoantibodies to galactose-deficient IgA, and subsequent deposition of immune complexes in the kidney glomerulus. Diagnosis remains dependent on a kidney biopsy, often after hematuria or proteinuria is detected on urinalysis. The cornerstone of therapy still involves renin-angiotensin-aldosterone system inhibitors or corticosteroids; however, new therapies targeting key aspects of the pathogenesis of IgA nephropathy are being introduced.