Title |
Expression of the vault RNA protects cells from undergoing apoptosis
|
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Published in |
Nature Communications, May 2015
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DOI | 10.1038/ncomms8030 |
Pubmed ID | |
Authors |
Melanie Amort, Birgit Nachbauer, Selma Tuzlak, Arnd Kieser, Aloys Schepers, Andreas Villunger, Norbert Polacek |
Abstract |
Non-protein-coding RNAs are a functionally versatile class of transcripts exerting their biological roles on the RNA level. Recently, we demonstrated that the vault complex-associated RNAs (vtRNAs) are significantly upregulated in Epstein-Barr virus (EBV)-infected human B cells. Very little is known about the function(s) of the vtRNAs or the vault complex. Here, we individually express latent EBV-encoded proteins in B cells and identify the latent membrane protein 1 (LMP1) as trigger for vtRNA upregulation. Ectopic expression of vtRNA1-1, but not of the other vtRNA paralogues, results in an improved viral establishment and reduced apoptosis, a function located in the central domain of vtRNA1-1. Knockdown of the major vault protein has no effect on these phenotypes revealing that vtRNA1-1 and not the vault complex contributes to general cell death resistance. This study describes a NF-κB-mediated role of the non-coding vtRNA1-1 in inhibiting both the extrinsic and intrinsic apoptotic pathways. |
X Demographics
Geographical breakdown
Country | Count | As % |
---|---|---|
United Kingdom | 1 | 100% |
Demographic breakdown
Type | Count | As % |
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Members of the public | 1 | 100% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
---|---|---|
Netherlands | 2 | 2% |
United States | 2 | 2% |
Norway | 1 | <1% |
Denmark | 1 | <1% |
United Kingdom | 1 | <1% |
Unknown | 125 | 95% |
Demographic breakdown
Readers by professional status | Count | As % |
---|---|---|
Student > Ph. D. Student | 38 | 29% |
Researcher | 24 | 18% |
Student > Master | 13 | 10% |
Student > Bachelor | 12 | 9% |
Student > Doctoral Student | 6 | 5% |
Other | 16 | 12% |
Unknown | 23 | 17% |
Readers by discipline | Count | As % |
---|---|---|
Biochemistry, Genetics and Molecular Biology | 48 | 36% |
Agricultural and Biological Sciences | 29 | 22% |
Medicine and Dentistry | 9 | 7% |
Immunology and Microbiology | 5 | 4% |
Engineering | 4 | 3% |
Other | 12 | 9% |
Unknown | 25 | 19% |