Renal failure is one of the main complications in multiple myeloma (MM) and histopathological lesions are due to light chains accumulation in the kidney. The 5T2MM mouse model closely mimics osteolytic lesions observed in clinics. We studied the occurrence of pathological changes in the kidney of mice inoculated with 5T2MM myeloma cells. No renal lesions due to light chain deposition were observed after histological, immunological staining and dosage of creatinine in serum and urine. PTH levels decreased in 5T2MM mice, confirming the absence of secondary hyperparathyroidism. Osteolytic lesions appear to be the unique consequence of 5T2MM cells inoculation.
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