Table 1. Primary Antibodies Used in IF Analysis of the ECM Composition.

antibody	vendor	product no.	dilution
collagen I	Abcam	ab34710	1:100
collagen IV	Abcam	ab6586	1:100
collagen VI	Abcam	ab6588	1:300
laminin	Abcam	ab11575	1:200
fibronectin	Abcam	ab23750	1:150
keratan sulfate	Santa Cruz Biotechnology	sc-73518	1:200
brevican	Bio-Techne	MAB40091	1:50
hyaluronic acid-binding protein	Sigma-Aldrich	H9910	1:100