Table 1.

Half maximal inhibitory concentration (IC₅₀) of Bortezomib in inhibiting cell growth of SCC-15, CAL-27, FaDu, A-253 and SALTO-5 cell lines after 48 and 72 h of treatment.

Cell line	Treatment (hours)	IC50 ± SD (nM)
SCC-15	48	19.89 ± 3.46
	72	11.04 ± 0.26
CAL-27	48	33.73 ± 1.91
	72	15.97 ± 3.61
FaDu	48	67.83 ± 5.45
	72	32.92 ± 2.26
A-253	48	55.90 ± 19.01
	72	10.25 ± 1.50
SALTO-5	48	60.65 ± 7.83
	72	10.79 ± 1.84