Table 1.

Lentiviral vectors encoding modified chondroitinase ABC.

Name	Promoter	Lab	Concentrationa	Minimum titreb	References
LV-C	CMV	Amsterdam	99 μg/ml of P24	6 × 105 TU/μl (HEK cells)	Naldini et al. (1996a), Hendriks et al. (2007),
LV-D	CMV	London	1.44 × 109 gen/ml	8 × 105 TU/μl (HEK cells)	Dull et al. (1998), Yáñez-Muñoz et al., 2006
LV-P	PGK	Lausanne	479 μg/ml of P24	∼106 TU/μl (SCTM cells)	Déglon et al. (2000)

^agen: genomes, by Q-PCR.

^bTU: transducing units. These titres are approximate values derived from the number of cells positive by chondroitinase immuno-staining 3 days after transduction of a subconfluent monolayer, quoted for the cell type which gave the highest titre.