Table 2. Antibodies used in immunohistochemistry.

Antibody (dilution)	Isotype	Pre-treatment	Specificity	Source/ Reference
1B5 (1:5)	IgG1,kappa	ABC	C-0-S	[62,63]
2B6 (1:5)	IgG1,kappa	ABC	C-4-S/DS	[62,63]
3B3 (1:5)	IgM, kappa	ABC	C-6-S	[63]
5D4 (1:5)	IgG1,kappa	ABC*	KS	[64]

ABC, chondroitinase ABC; C-0-S, chondroitin-0-sulfate; C-4-S, chondroitin-4-sulpfate; C-6-S, chondroitin-6-sulfate; DS, dermatan sulfate; KS, keratan sulphate; * chondroitinase ABC was used to remove CS chains for improved KS labelling.