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Histone hypercitrullination mediates chromatin decondensation and neutrophil extracellular trap formation
| Content Provider | Scilit |
|---|---|
| Author | Wang, Yanming Li, Ming Stadler, Sonja C. Correll, Sarah Li, Pingxin Wang, Danchen Hayama, Ryo Leonelli, Lauriebeth Han, Hyunsil Grigoryev, Sergei A. Allis, C. David Coonrod, Scott A. |
| Copyright Year | 2009 |
| Description | Peripheral blood neutrophils form highly decondensed chromatin structures, termed neutrophil extracellular traps (NETs), that have been implicated in innate immune response to bacterial infection. Neutrophils express high levels of peptidylarginine deiminase 4 (PAD4), which catalyzes histone citrullination. However, whether PAD4 or histone citrullination plays a role in chromatin structure in neutrophils is unclear. In this study, we show that the hypercitrullination of histones by PAD4 mediates chromatin decondensation. Histone hypercitrullination is detected on highly decondensed chromatin in HL-60 granulocytes and blood neutrophils. The inhibition of PAD4 decreases histone hypercitrullination and the formation of NET-like structures, whereas PAD4 treatment of HL-60 cells facilitates these processes. The loss of heterochromatin and multilobular nuclear structures is detected in HL-60 granulocytes after PAD4 activation. Importantly, citrullination of biochemically defined avian nucleosome arrays inhibits their compaction by the linker histone H5 to form higher order chromatin structures. Together, these results suggest that histone hypercitrullination has important functions in chromatin decondensation in granulocytes/neutrophils. |
| Related Links | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2654299/pdf http://jcb.rupress.org/content/184/2/205.full.pdf |
| Ending Page | 213 |
| Page Count | 9 |
| Starting Page | 205 |
| DOI | 10.1083/jcb.200806072 |
| Journal | Journal of Cell Biology |
| Issue Number | 2 |
| Volume Number | 184 |
| Language | English |
| Publisher | Rockefeller University Press |
| Publisher Date | 2009-01-19 |
| Access Restriction | Open |
| Subject Keyword | Immunology Research and Experimental Medicine Traps Neutrophils Structures Innate Immune Chromatin Decondensation Histone Hypercitrullination Journal: Journal of Cell Biology (Vol- 184, Issue- 2) |
| Content Type | Text |