[HTML][HTML] Kidney expression of toll like receptors in lupus nephritis: quantification and clinicopathological correlations

F Conti, FR Spinelli, S Truglia, F Miranda… - Mediators of …, 2016 - hindawi.com
F Conti, FR Spinelli, S Truglia, F Miranda, C Alessandri, F Ceccarelli, M Bombardieri
Mediators of Inflammation, 2016hindawi.com
Objective. The study aimed at locating and quantifying Toll Like Receptor (TLR) 3, 7, 8, and
9 expression in kidney of patients with lupus nephritis (LN) and correlating them with
clinicopathological features. Methods. Kidney sections from 26 LN patients and 4 controls
were analyzed by immunohistochemistry using anti-human TLR3, TLR7, TLR8, and TLR9
polyclonal antibodies; the number of TLR-positive nuclei/mm 2 was evaluated on digitalized
images. Results. Compared to controls, LN showed a significantly higher amount of …
Objective. The study aimed at locating and quantifying Toll Like Receptor (TLR) 3, 7, 8, and 9 expression in kidney of patients with lupus nephritis (LN) and correlating them with clinicopathological features. Methods. Kidney sections from 26 LN patients and 4 controls were analyzed by immunohistochemistry using anti-human TLR3, TLR7, TLR8, and TLR9 polyclonal antibodies; the number of TLR-positive nuclei/mm2 was evaluated on digitalized images. Results. Compared to controls, LN showed a significantly higher amount of glomerular and tubulointerstitial TLR9 ( and ), whole and tubulointerstitial TLR3 ( and ), and a higher tubulointerstitial TLR7 (). TLR9 positively correlated with activity index () and tubular TLR7 with chronicity index (). TLR9 positively correlated with Renal-SLEDAI (). Conclusions. This is the first study quantifying kidney expressions of TLRs in LN patients; the results show an overexpression of TLR3, TLR7, and TLR9 and demonstrate a correlation with clinicopathological indices supporting a role of these mediators in the pathogenesis of LN.
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