Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5685303 | American Journal of Kidney Diseases | 2017 | 4 Pages |
Abstract
Paraneoplastic nephrotic syndrome is often a complication in patients with cancer, and various histologic lesions have been described in the kidney. We report the case of a 76-year-old woman who presented with a podocytopathy that was found to be associated with a small cell lung carcinoma (SCLC). One cycle of carboplatin-etoposide combination therapy led to resolution of nephrotic syndrome and remission of the lung carcinoma. C-Maf-inducing protein (C-Mip) was overexpressed in both podocytes and cancer cells, but was not found in control kidney and lung tissue samples. C-Mip also was absent in SCLC cells from 30 patients without nephrotic syndrome. Exposing cultured podocytes to a sample of our patient's serum that was collected prior to chemotherapy led to disorganization of the podocyte cytoskeleton and induction of C-Mip expression, which was not observed with control serum or our patient's serum sampled after chemotherapy. These observations suggest that C-Mip may play an important role in SCLC-related podocytopathy and that a circulating factor likely induces its expression in the kidney.
Keywords
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Nephrology
Authors
Yassine MD, Thibaud MD, PhD, Julie MD, Shao-Yu PhD, Solange MD, Vincent MD, PhD, Sophie MD, PhD, Djillali MD, PhD,