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. 1998 May 18;141(4):905–915. doi: 10.1083/jcb.141.4.905

Figure 6.

Figure 6

Effects of cyclodextrin on CT internalization and activation. CaCo-2 cells were cultured for 48 h in serum-free medium containing 0.1% BSA and then incubated for 4 h in serum-free medium containing 0.01% BSA without and with 100 mg/ml cyclodextrin at 37°C. Cells were then assayed for either CT internalization (A) as described in the legend to Fig. 1; or CT and DT cytotoxicities (B) as described in the legend to Fig. 5. Absolute inhibition of protein synthesis in DT-treated cells was 45%.