What is podocyte injury?
Podocyte injury causes proteinuria and detachment from the glomerular basement membrane. In addition to “sick” podocytes and their detachment, our understanding of glomerular responses following podocyte loss needs to address the pathways from podocyte injury to sclerosis.
What causes podocyte damage?
The major causes (genetic or acquired) of foot processes effacement are impaired formation of the slit diaphragm complex, abnormality of the GBM or adhesion of podocytes to the GBM, abnormalities in the cytoskeleton or associated proteins, and alterations in the apical membrane domain of the podocyte.
Can adriamycin cause kidney damage?
Renal injury develops in mice with doses of Adriamycin approximately half (5.3 mg/kg) that of wild-type BALB/c mice (9.8–10.4 mg/kg), suggesting that while lymphocytes are not essential, it is likely that a subpopulation of these cells protects against the development of renal injury.
What are podocyte foot processes?
Podocyte foot processes attach themselves to the glomerular capillaries at the glomerular basement membrane (GBM) forming intercellular junctions that form slit diaphragm filtration barriers that help maintain normal renal function. Damage in this area has been implicated in glomerular disease.
What is a podocyte cell?
Podocytes are specialized epithelial cells that cover the outer surfaces of glomerular capillaries. Unique cell junctions, known as slit diaphragms, which feature nephrin and Neph family proteins in addition to components of adherens, tight, and gap junctions, connect adjacent podocyte foot processes.
What is the function of the podocytes?
Podocytes play an important role in glomerular function. Together with endothelial cells of the glomerular capillary loop and the glomerular basement membrane they form a filtration barrier. Podocytes cooperate with mesangial cells to support the structure and function of the glomerulus.
Is Adriamycin nephrotoxic?
Non-immune-mediated glomerulonephritis models include adriamycin nephropathy (AN) and glomerular compromise in mercuric chloride (HgCl2)-induced nephrotoxicity.
What is podocyte effacement?
In glomerular diseases, podocytes lose the usual interdigitating pattern of foot processes between neighboring podocytes, and this alteration, known as “foot process effacement,” is regarded as a pathologic indicator of podocyte injury.
What are podocytes quizlet?
Podocytes – are epithelial cells with extensive branching cytoplasmic processes (pedicels or foot processes) that completely envelop the loops of glomerular capillaries.
Is doxorubicin toxic to kidneys?
The tissue of the doxorubicin group showed some histopathological changes such as glomerular vacuolization and degeneration, adhesion to Bowman’s capsule and thickening and untidiness of tubular and glomerular capillary basement membranes.