Stimulation | | No. of genes | |
---|
| Total | Positive regulationb | Negative regulationb |
---|
None | 93 | 43 | 50 |
Anti-CD3 | 129 | 45 | 84 |
Anti-CD3+anti-CD28 | 203 | 173 | 30 |
- a Genes were classified as PARP-1 dependent genes when their expression was change by a factor of at least 1.5 (F-test<0.05) between Parp-1+/+ and Parp-1-/- cells in the microarrays analysis. bPositive regulation was considered when the expression of a particular gene was higher in the presence of PARP-1 than in its absence. Likewise, genes expressed at higher level in the absence of PARP-1 than in its presence were considered negatively regulated by PARP-1.