. Author manuscript; available in PMC: 2010 Jul 1.

Published in final edited form as: Osteoarthritis Cartilage. 2009 Feb 15;17(7):930–938. doi: 10.1016/j.joca.2009.02.001

Table 3.

Gene clustering groupings. Resulted gene sorting according to extent and kinetics of expression. Specific gene allocation and centroid coordinates when all data are clustered.

Group	Genes	Centroid Coordinates (PC1,PC2, PC3)
1	TGF-B, c-Fos, c-Jun, Timp-3, ADAMTS-5, MMP13, MMP3	(-2.46, 2.37, -0.33)
2	Sox-9, HSP90, Timp-1, Link	(-3.10, 0.95, -0.07)
3	TNF-a, IL-1, IL-4, IL-6	(-2.78, -1.50, -0.94)
4	IGF-2, MMP1, Fibronectin, Aggrecan	(-2.71, -0.24, 2.03)
5	IGF-1, Txnip, Timp-2, Collagen II	(0.32, 3.21, -0.19)