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2015 ; 24
(3
): 231-8
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Crosstalk in glomerular injury and repair
#MMPMID25887901
Dimke H
; Maezawa Y
; Quaggin SE
Curr Opin Nephrol Hypertens
2015[May]; 24
(3
): 231-8
PMID25887901
show ga
PURPOSE OF REVIEW: The glomerulus is a unique structure required for filtration
of blood, while retaining plasma proteins based on size and charge selectivity.
Distinct cell types form the structural unit that creates the filtration barrier.
Structurally, fenestrated endothelial cells line the capillary loops and lie in
close contact with mesangial cells. Podocytes are connected by specialized
intercellular junctions known as slit diaphragms and separated from the
endothelial compartment by the glomerular basement membrane. In order for this
highly specialized structure to function, cross-communication between these cells
must occur. RECENT FINDINGS: Although classical studies have established key
roles for vascular endothelial and platelet-derived growth factors in glomerular
cross-communication, novel paracrine signaling pathways within the glomerulus
have recently been identified. In addition, unique cellular pathways of
established signaling cascades have been identified that are important for
maintaining glomerular barrier function in health and disease. SUMMARY: Here, we
will review our current understanding of the processes of cross-communication
between the unique cellular constituents forming the glomerular filtration unit.
We will highlight recent findings of cellular crosstalk via signaling pathways
that regulate glomerular barrier function in pathophysiological conditions.