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. Author manuscript; available in PMC: 2013 Sep 18.
Published in final edited form as: Biomed Pharmacother. 2010 Nov 4;64(10):723–732. doi: 10.1016/j.biopha.2010.10.001

Table 1.

In vitro cytotoxicity and antiviral activities of PDBGs and control compounds.

Compound (linkers) Cytotoxicity: CC50 (%)
Antiviral activity: IC50 (%)
10-min exposure 2-h exposurea 6-h exposure VII-IIIBb VII-BaLb CFI-IIIB CAI-IIIB
PEHMB (2-6) 1.0930 0.7738 0.6995 0.0099 0.0147 0.0795 0.0128
PPHMB (3-6) 0.4116 0.1995 0.2046 0.0028 0.2032 0.1646 0.0054
PBHMB (4-6) 0.4221 0.0707 0.0534 0.0023 0.0042 0.0749 0.0085
PEOMB (2-8) 0.1624 0.0657 0.0274 0.0011 0.0013 0.0300 0.0028
PHMB (6-6) 0.0461 0.0094 0.0088 ND ND ND ND
PEDMB (2-10) 0.0301 0.0163 0.0131 ND ND ND ND
PEDDMB (2-12) 0.0169 0.0080 0.0044 ND ND ND ND
N-9 0.0645 0.0061 0.0056 ND ND ND ND
DS > 2 > 1 > 1 < 0.0001 0.0008 0.0034 0.0009
PEHMB (2-6)c ND 2.1 ND 0.0003 0.0079 ND ND

DS: Dextran Sulfate; ND: not determined.

a

CC50 values were calculated from results illustrated in Fig. 2.

b

IC50 values were calculated from results illustrated in Fig. 3.

c

PEHMB (2-6) (also known as NB325) produced using an improved synthesis protocol and partial purification.