Kidney expression of toll like receptors in lupus nephritis: quantification and clinicopathological correlations
F Conti, FR Spinelli, S Truglia, F Miranda… - Mediators of …, 2016 - Wiley Online Library
F Conti, FR Spinelli, S Truglia, F Miranda, C Alessandri, F Ceccarelli, M Bombardieri…
Mediators of Inflammation, 2016•Wiley Online LibraryObjective. 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 …
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 …
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 (p = 0.003 and p = 0.007), whole and tubulointerstitial TLR3 (p = 0.026 and p = 0.031), and a higher tubulointerstitial TLR7 (p = 0.022). TLR9 positively correlated with activity index (p = 0.0063) and tubular TLR7 with chronicity index (p = 0.026). TLR9 positively correlated with Renal‐SLEDAI (p = 0.01). 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.
