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.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 J+Nephropathol
2017 ; 6
(2
): 97-102
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English Wikipedia
Differences in the frequency of macrophage and T cell markers between focal and
crescentic classes of anti-neutrophil cytoplasmic antibody (ANCA)-associated
glomerulonephritis
#MMPMID28491860
Kidder D
; Bray SE
; Fleming S
J Nephropathol
2017[Mar]; 6
(2
): 97-102
PMID28491860
show ga
BACKGROUND: Anti-neutrophil cytoplasmic antibody (ANCA)-associated
glomerulonephritis (AAGN) can be classified into; focal, crescentic, mixed and
sclerotic classes. Macrophages and T lymphocytes are key players in mediating
renal injury. The frequency of macrophage and T lymphocytes in different
histological classes is unclear. OBJECTIVES: We examined the frequency of
macrophage and T lymphocyte markers in AAGN and assessed their correlation with
renal function at presentation. PATIENTS AND METHODS: Renal biopsies from 38
patients were included in immunohistochemistry analysis of macrophages (CD68,
sialoadhesin [Sn] and mannose receptor [MR]) and T cells (CD4 and CD8) markers.
The frequency of these markers in glomerular, periglomerular and interstitial
compartments were measured in a blinded fashion. Biopsies were allocated a
histological class of focal, crescentic, mixed or sclerotic. Scores were then
matched to histological class and assessed for correlation with renal function.
RESULTS: The biopsies were crescentic 19 (50%), focal 10 (26.3%), mixed 6 (15.7%)
and sclerotic 3 (8%). Interstitial CD68+ macrophages and CD8+ T lymphocytes
showed best correlation with renal function at the time of presentation. CD68+
macrophages were significantly increased in crescentic compared to focal AAGN.
MR+ macrophages, CD4 and CD8 T cells were also elevated in the interstitium of
crescentic compared to focal group. CONCLUSIONS: In this study interstitial CD68
and CD8 showed the highest association with the renal function at presentation.
Differences in the cellular infiltrate between focal and crescentic AAGN were
related to CD68+ macrophages and to interstitial MR+ macrophages and T
lymphocytes. Further studies are needed to assess these differences across all
four histological categories.