Ia. Hauser et al., EXPRESSION OF CELL-ADHESION MOLECULES IN PRIMARY RENAL-DISEASE AND RENAL-ALLOGRAFT REJECTION, Nephrology, dialysis, transplantation, 12(6), 1997, pp. 1122-1131
Background. In vitro studies have demonstrated that inflammatory media
tors such as the cytokines TNF alpha and IL-1 upregulate or induce de
novo expression of cell adhesion molecules on endothelial and epitheli
al cells, in the present study the expression of the cell adhesion mol
ecules ICAM-1, VCAM-1, E-selectin and PECAM-1 was investigated in rena
l biopsies from patients with primary renal diseases (n = 66) and from
renal allograft recipients (n = 42), Methods. Expression of the cell
adhesion molecules was determined by immunohistochemistry of frozen se
ctions using monoclonal antibodies directed against PECAM-1, ICAM-1, V
CAM-1, E-selectin and MHC class II molecules (APAAP method). Results a
nd Conclusions. PECAM-1 and ICBM-1 were expressed in the renal vascula
ture and disappeared in obliterated glomeruli with endothelial cell de
struction, ICAM-1 but not PECAM-1 was upregulated in renal endothelia
in acute allograft rejection and inflammatory primary renal diseases.
Tubular de novo expression of ICAM-1 and VCAM-1 correlated with severe
structural damage of the renal parenchyma including interstitial fibr
osis, Vascular and/or glomerular VCAM-1 and E-selectin. expression was
pronounced in severe acute allograft rejection and also reflected the
intensity of inflammatory reactions in primary renal diseases with or
without autoimmune disorders. De novo expression of VCAM-1 and E-sele
ctin in renal vessels and/or glomeruli and overexpression of ICAM-1 ar
e markers of acute and severe inflammatory processes in biopsies from
allograft recipients and patients with primary renal diseases.