Table 2.
NF-κB p65 phosphorylation sites | Main functions | HREC | Müller cells | ||||
---|---|---|---|---|---|---|---|
HG | HG + IL-1β or TNF-α | HG + IL-4 | HG | HG + IL-1β or TNF-α | HG + IL-4 | ||
Thr-254 | p65 transactivation [69] | ↑ | ↑↑↑ | ↓ | ↑↑↑ | ↑↑↑ | ↓↓ |
Ser-276 | CBP recruitment, system inflammation [33, 44]; Translocation of p65 [43] | ↑↑↑ | ↑↑↑ | None | None | None | ↓↓↓ |
Ser-281 | Translocation of p65 [43] | None | ↑↑ | ↓ | ↑↑↑ | ↑↑↑ | ↓↓↓ |
Ser-311 | IL-6 transcription and CBP recruitment [37] | None | ↑↑↑ | ↓ | ↑ | ↑↑↑ | None |
Ser-468 | ICAM-1, VCAM-1 transcription [45] | ↑↑↑ | ↑↑↑ | None | ↑ | ↑↑↑ | ↓ |
Ser-529 | Translocation of p65 [36] | ↑ | ↑↑↑ | None | None | ↑↑↑ | None |
Ser-536 | ICAM-1, IL-8 transcription [42]; CBP recruitment [41]; translocation of p65 [39] | None | ↑↑↑ | None | None | ↑↑↑ | ↑ |
Thr-435 | p65 transactivation [70] | ↑↑↑ | ↑↑↑ | ↓ | ↑↑ | ↑↑↑ | ↓↓↓ |
↑/↓, ↑↑/↓↓, and ↑↑↑/↓↓↓ indicate P < 0.05, 0.01, and 0.0001, respectively, versus normal-glucose/high-glucose controls. None indicates no changes were observed. Results were derived from the peak change observed among the different time points examined.