PARP1 depletion induces RIG-I-dependent signaling in human cancer cells.
PARP1 depletion induces RIG-I-dependent signaling in human cancer cells.
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DOI:
10.1371/journal.pone.0194611
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发表时间:
2018
期刊:
影响因子:
3.7
通讯作者:
Franco S
中科院分区:
文献类型:
--
作者:
Ghosh R;Roy S;Franco S
DNA Damage Response (DDR) and DNA repair pathways are emerging as potent, ubiquitous suppressors of innate immune signaling in human cells. Here, we show that human cells surviving depletion of the Single Strand Break (SSB) repair protein PARP1 undergo p21-dependent senescence or cell cycle checkpoint activation in the context of activation of innate immune signaling, or viral mimicry. Specifically, we observe induction of a large number of interferon-stimulated genes (ISGs) and multiple pattern recognition receptors (PRRs; including RIG-I, MDA-5, MAVS, TLR3 and STING) and increased nuclear IRF3 staining. Mechanistically, depletion of the double-stranded RNA (dsRNA) helicase RIG-I or its downstream effector MAVS specifically rescues ISG induction in PARP1-depleted cells, suggesting that the RIG-I/MAVS pathway is required for sustained ISG expression in this context. Experiments with conditioned media or a neutralizing antibody to the α/β-IFN receptor revealed that persistent ISG expression additionally requires an autocrine/paracrine loop. Finally, loss of PARP1 and radiation-induced DNA damage strongly synergize in the induction of p21 and ISGs. Overall, these findings increase our understanding of how PARP1 may suppress deleterious phenotypes associated to aging, inflammation and cancer in humans.
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影响因子:
64.5
作者:
Benci JL;Xu B;Qiu Y;Wu TJ;Dada H;Twyman-Saint Victor C;Cucolo L;Lee DSM;Pauken KE;Huang AC;Gangadhar TC;Amaravadi RK;Schuchter LM;Feldman MD;Ishwaran H;Vonderheide RH;Maity A;Wherry EJ;Minn AJ
通讯作者:
Minn AJ
影响因子:
11.2
作者:
Burnette BC;Liang H;Lee Y;Chlewicki L;Khodarev NN;Weichselbaum RR;Fu YX;Auh SL
通讯作者:
Auh SL
DOI:
10.1073/pnas.051633498
发表时间:
2001-03-13
影响因子:
11.1
作者:
Ha, HC;Juluri, K;Snyder, SH
通讯作者:
Snyder, SH
影响因子:
64.8
作者:
Goubau, Delphine;Schlee, Martin;Deddouche, Safia;Pruijssers, Andrea J.;Zillinger, Thomas;Goldeck, Marion;Schuberth, Christine;Van der Veen, Annemarthe G.;Fujimura, Tsutomu;Rehwinkel, Jan;Iskarpatyoti, Jason A.;Barchet, Winfried;Ludwig, Janos;Dermody, Terence S.;Hartmann, Gunther;Reis e Sousa, Caetano
通讯作者:
Reis e Sousa, Caetano
DOI:
10.18632/aging.100052
发表时间:
2009-05-20
期刊:
Aging
影响因子:
--
作者:
Altmeyer M;Hottiger MO
通讯作者:
Hottiger MO