Table 1.

Correlations of COL4A1 and COL4A2 to BM proteins and VSMC markers in human ITAs (graphical representation of correlations are shown in Supplementary Fig. 4).

Protein	COL4A1			COL4A2
	R2	p	Slope (95%)	R2	p	Slope (95%)
BM
HSPG2	0.21	0.0006	0.17 (0.08–0.27)	0.30	< 0.0001	0.31 (0.19–0.44)
LAMA5	0.15	0.0035	0.20 (0.07–0.34)	0.24	< 0.0001	0.39 (0.21–0.57)
LAMB2	0.32	< 0.0001	0.27 (0.16–0.38)	0.35	< 0.0001	0.43 (0.27–0.58)
LAMC1	0.47	< 0.0001	0.41 (0.29–0.53)	0.44	< 0.0001	0.57 (0.40–0.73)
VSMC
CNN1	0.26	< 0.0001	0.47 (0.25–0.70)	0.44	< 0.0001	0.89 (0.62–1.16)
TAGLN	0.27	< 0.0001	0.60 (0.32–0.87)	0.28	< 0.0001	0.89 (0.51–1.26)
MYH11	0.40	< 0.0001	0.37 (0.24–0.49)	0.60	< 0.0001	0.65 (0.51–0.79)
TPM2	0.31	< 0.0001	0.42 (0.23–0.61)	0.38	< 0.0001	0.76 (0.49–1.03)
ACTA2	0.09	0.0372	0.24 (0.01–0.46)	0.22	0.0004	0.53 (0.25–0.81)
MYL9	0.30	< 0.0001	0.42 (0.24–0.60)	0.39	< 0.0001	0.70 (0.47–0.92)
Other
GAPDH	0.03	0.2480	0.11 (-0.08–0.29)	0.04	0.1392	0.19 (-0.06–0.45)