What protective substance strengthens the epithelial cells and shields them from toxins that may build up in the urine?

Question

Quizplus · Accepted Answer

Uroplakin is a protein found in the bladder epithelium that forms a protective shield around the cells, making them less susceptible to damage from toxins found in urine. Keratin is a protein that forms protective layers in skin and hair, but is not found in bladder epithelium. Peptidoglycan is a component of bacterial cell walls and is not present in the human bladder. Mucous and polysaccharides can provide some protection but are not as effective as uroplakin.

What Protective Substance Strengthens the Epithelial Cells and Shields Them