Table 2. Inhibition of intracellular telomerase by 2′-MOE RNA and 2′-MOE RNA/DNA chimeric oligomers 1, 4 and 7 days after transfection.
Compound | Chemistry | No. | Sequence | Conc. | Inhibition (%) | ||
|
|
|
|
|
Day 1 |
Day 4 |
Day 7 |
3′-GAGUCAAUCCCAAUCUG-5′ (RNA template) | |||||||
ISIS125625 | 2′-MOE RNA | III | CAGUUAGGGUUAG | 500 | 82 | 67 | 76 |
100 | 77 | 87 | 76 | ||||
ISIS125627 | 2′-MOE RNA | IV | CAGUUAGAAUUAG (mismatch) | 500 | 24 | nd | nd |
100 | 23 | 20 | nd | ||||
ISIS24691 | 2′-MOE RNA | V | CAGUUAGGGUUAG | 500 | 68 | 87 | 50 |
100 | 80 | 78 | 52 | ||||
ISIS125628 | 2′-MOE RNA | VI | CAGUUAGAAUUAG (mismatch) | 500 | 30 | nd | nd |
100 | 32 | nd | nd | ||||
ISIS113749 | 2′-MOE RNA/DNA | XI | CUUCUCAGTTAGGGTUAGAC | 500 | 54 | 93 70 | |
100 | 68 | 91 | 60 | ||||
ISIS113750 | 2′-MOE RNA/DNA | XII | CUUCUCAGTTAGAATUAUAC (mismatch) | 500 | 66 | 65 | nd |
100 | 18 | 42 | nd |
Underlined nucleotides have PS linkages. The italicized bases in the 2′-MOE/DNA chimera are DNA. Bases that are mismatched relative to the RNA template of hTR are in bold. Nd, no significant inhibition detected. Individual experiments were performed in duplicate and all experiments were repeated at least once. Reported values are an average of the percent inhibition values for all determinations.