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https://doi.org/10.1093/mrcr/rxac033
Copy DOIJournal: Modern rheumatology case reports | Publication Date: May 5, 2022 |
Citations: 4 |
A 26-year-old woman with tuberous sclerosis complex (TSC) received outpatient treatment for the complication of systemic lupus erythematosus (SLE) at our hospital. She visited our hospital with a chief complaint of pitting oedema in bilateral lower legs for 3 days. The urinalysis showed massive proteinuria with a lot of white blood cell casts. The blood tests revealed hypoalbuminaemia, hypercholesterolaemia, hypocomplementaemia, and elevated anti-double-stranded DNA antibody titre. Renal biopsy was not performed because of multiple renal angiomyolipomas, which was one of the features of TSC. She was diagnosed with a nephrotic state due to lupus nephritis. Although she had a standard therapy with high-dose corticosteroid and mycophenolate mofetil and tacrolimus, complete remission had not been achieved leading to a steroid-dependent nephrotic syndrome. During the follow-up, the angiomyolipomas became larger and had a risk of rupture at the age of 29 years. Everolimus, a mechanistic target of rapamycin (mTOR) inhibitor, was started for the treatment of angiomyolipomas, and mycophenolate mofetil and tacrolimus were terminated instead. The activity of lupus nephritis was surprisingly ameliorated, and the amount of corticosteroid successfully tapered. Everolimus has been continued for 6 years without severe side effects. Accumulating evidence suggests that the activated mTOR pathway plays a key role in the pathogenesis of SLE. We reported the long-term efficacy and safety of everolimus for refractory SLE in a patient with TSC for the first time. This case suggests that everolimus can be a promising option for the treatment of lupus nephritis.
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