Cystinosis: A Rare and Under-Recognized Cause of Kidney Failure
By Ladan Golestaneh, MD, MS What is Cystinosis? Cystinosis, or Nephropathic Cystinosis, is a rare genetic disease that affects boys and girls equally and causes a defect in the way that lysosomes (small organelles in cells that remove waste products) are able to remove an amino acid (protein subunit) called Cystine.1-4 The name of the defected gene is CTNS which affects “Cystinosin”, the protein that normally takes Cystine out of the lysosome. As a result of this defect, Cystine accumulates in the cells of various organs and tissues of the body and causes extensive damage. The disease is progressive, meaning it [...]