Pro-inflammatory S100A12 can activate human monocytes via Toll-like receptor 4.

Dirk Foell, Helmut Wittkowski, Christoph Kessel, Aloys Lüken, Toni Weinhage, Georg Varga, Thomas Vogl, Timo Wirth, Dorothee Viemann, Per Björk, Marieke A. D. van Zoelen, Faekah Gohar, Geetha Srikrishna, Matthias Kraft, and Johannes Roth
AJRCCM Articles in Press. Published on 23-April-2013 as 10.1164/rccm.201209-1602OC