From: Bone morphogenetic proteins in destructive and remodeling arthritis
Ex vivo human biopsies | Increased expression of BMP2 and BMP6 [9] |
 | Decreased expression of BMP4 and BMP5 [41] |
 | Presence of BMP receptor Ia positive cells in RA [38] |
Animal model data | Influx of BMP receptor Ia positive cells precedes onset of arthritis [39] |