During necrosis, HMGB1 protein is passively released from nucleus and secreted to extracellular matrix.
HMGB1 binds to DNA tightly during apoptosis, but is passively released from nucleus and secreted during necrosis.
A recent study reports Caspase-2 releases from nucleus to cytosol, which is partially required for the apoptosis induction by taxanes in breast cancer cells [ 78].
The full-length protein behaved in a similar manner in MCF7 cells and was released from nuclei at 0.4 M NaCl.
In regards to 5-HT brainstem pathology in SIDS and its possible link to hippocampal defects, 5-HT is released from nuclei in the rostral raphe in the caudal midbrain and upper pons to play a trophic role neurogenesis, migration, and neuronal survival in the DG in early development [ 8, 13, 18, 57].
Treatment with nomifensine potentiated electrically or high potassium concentration evoked [3H]dopamine release, but inhibited the effects of ethanol on [3H]dopamine release from the nucleus accumbens slices.
Expressed PFKFB3 was found to be mainly localized in the nucleus, where it is subjected to degradation; however, expression of PFKFB3 lacking the APCCdh1-targeting KEN motif, or following NMDAR stimulation, promoted accumulation of PFKFB3 and its release from the nucleus to the cytosol through an excess Cdh1-inhibitable process.
The appearance of increasing γH2AX and H2AK119 ubiquitylation staining on the GRC from metaphase I onwards (Figs. 2a and 4b), combined with initial lack of γH2AX and H2AK119 ubiquitylation staining during pachytene, indicated that the DNA of the GRC may be degraded during and after its release from the nucleus.
Spitzer spectra of the coma and nucleus indicate that the nucleus is large (R = 27 ± 5 km) and that the grains released from the nucleus have compositions similar to that of the grains in some stellar debris disks.
INF-α/β also can mediate necroptosis by inducing interaction of TNFR1 and RIP1, which promotes formation of RIP1-RIP3 and release of HMGB1 from nucleus to outside of the cell.
