• Anadi Mahajan, Justyna Amelio, Kerry Gairy, Gavneet Kaur, Roger A Levy, David Roth, and Damon Bass.
• Bridge Medical, Richmond, UK.
• Lupus. 2020 Aug 1; 29 (9): 1011-1020.

ObjectiveThe understanding of systemic lupus erythematosus (SLE) and lupus nephritis (LN) pathogenesis remains incomplete. This review assessed LN development in SLE, within-LN progression and progression to end-stage renal disease (ESRD).MethodsA keyword-based literature search was conducted, and 26 publications were included.ResultsOverall, 7-31% of patients had LN at SLE diagnosis; 31-48% developed LN after SLE diagnosis, most within 5 years. Class IV was the most commonly found LN class and had the worst prognosis. Histological transformation occurred in 40-76% of patients, more frequently from non-proliferative rather than proliferative lesions. Cumulative 5- and 10-year ESRD incidences in patients with SLE were 3% and 4%, respectively, and 3-11% and 6-19%, respectively, in patients with SLE and LN.ConclusionsElevated serum creatinine was identified as a predictor of worsening disease state, and progression within LN classes and from SLE/LN to ESRD. This review highlights the substantial risk for developing LN and progressing to ESRD amongst patients with SLE.

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