Abstract:
BACKGROUND:Epstein-Barr virus (EBV) was isolated in the 1960s from the African childhood tumor, Burkitt's Lymphoma (BL), characterized by the translocation of the c-myc gene into one of the immunoglobulin loci. Due to the extreme discrepancy between the widespread dissemination of EBV infection and the overall rarity of EBV-related tumors, it remains an open question whether EBV is really a human tumor virus, and if so, what specific contribution EBV may have to tumorigenesis. MATERIAL/METHODS:Protein binding at the EBER locus of EBV was analyzed by genomic footprinting electrophoretic mobility shift, reporter gene assay, and chromatin immunoprecipitation in a panel of six B-cell lines. RESULTS:Several novel in vivo protein binding sites were found in the EBER locus. Among those, a prominent binding site, 130 base pairs upstream of the EBER1 gene, contains two E-boxes providing a consensus sequence for binding of the transcription factor and oncoprotein c-Myc to the EBV genome. CONCLUSIONS:Based on the discovery of a binding site for c-Myc in the EBV genome, a new molecular model for the specific role of EBV as a causal factor in the origin of endemic Burkitt's Lymphoma is proposed. Translocated and deregulated c-myc directly activates and maintains the antiapoptotic functions of the EBER locus in a single EBV-infected B cell undergoing the germinal center (GC) reaction. With the balance shifted towards cell survival, the oncogenic potential of the pro-apoptotic c-Myc protein is unmasked in the translocated GC cell. This single translocated and surviving cell is the founder cell of an endemic BL. The new model reinstitutes EBV as a real human tumor virus.
journal_name
Med Sci Monitjournal_title
Medical science monitor : international medical journal of experimental and clinical researchauthors
Niller HH,Salamon D,Ilg K,Koroknai A,Banati F,Bauml G,Rucker O,Schwarzmann F,Wolf H,Minarovits Jsubject
Has Abstractpub_date
2003-01-01 00:00:00pages
HY1-9issue
1eissn
1234-1010issn
1643-3750pii
3050journal_volume
9pub_type
杂志文章abstract::BACKGROUND Osteoporosis is a common osteopathy, resulting in fractures, especially in elder people. Sesamin has many pharmacological effects, including supplying calcium. However, how sesamin might prevent osteoporosis is still under study. MATERIAL AND METHODS Bone marrow stromal cells (BMSCs) extracted from rat femu...
journal_title:Medical science monitor : international medical journal of experimental and clinical research
pub_type: 杂志文章
doi:10.12659/MSM.915529
更新日期:2019-07-17 00:00:00
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journal_title:Medical science monitor : international medical journal of experimental and clinical research
pub_type: 杂志文章
doi:10.12659/MSM.910265
更新日期:2018-10-21 00:00:00
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journal_title:Medical science monitor : international medical journal of experimental and clinical research
pub_type: 杂志文章
doi:
更新日期:2001-05-01 00:00:00
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journal_title:Medical science monitor : international medical journal of experimental and clinical research
pub_type: 杂志文章,评审
doi:
更新日期:2005-11-01 00:00:00
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journal_title:Medical science monitor : international medical journal of experimental and clinical research
pub_type: 杂志文章
doi:10.12659/MSM.914031
更新日期:2019-06-13 00:00:00
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journal_title:Medical science monitor : international medical journal of experimental and clinical research
pub_type: 杂志文章
doi:10.12659/MSM.890920
更新日期:2014-12-06 00:00:00
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journal_title:Medical science monitor : international medical journal of experimental and clinical research
pub_type: 杂志文章
doi:10.12659/MSM.911979
更新日期:2018-12-10 00:00:00
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journal_title:Medical science monitor : international medical journal of experimental and clinical research
pub_type: 杂志文章
doi:10.12659/MSM.915806
更新日期:2019-10-06 00:00:00
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journal_title:Medical science monitor : international medical journal of experimental and clinical research
pub_type: 杂志文章
doi:
更新日期:2003-08-01 00:00:00
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journal_title:Medical science monitor : international medical journal of experimental and clinical research
pub_type: 杂志文章
doi:10.12659/MSM.909259
更新日期:2018-07-10 00:00:00
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journal_title:Medical science monitor : international medical journal of experimental and clinical research
pub_type: 杂志文章
doi:10.12659/MSM.892505
更新日期:2014-11-14 00:00:00
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journal_title:Medical science monitor : international medical journal of experimental and clinical research
pub_type: 临床试验,杂志文章
doi:
更新日期:2008-07-01 00:00:00
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journal_title:Medical science monitor : international medical journal of experimental and clinical research
pub_type: 杂志文章
doi:10.12659/MSM.927782
更新日期:2021-01-15 00:00:00
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journal_title:Medical science monitor : international medical journal of experimental and clinical research
pub_type: 杂志文章
doi:10.12659/msm.901924
更新日期:2017-05-20 00:00:00
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journal_title:Medical science monitor : international medical journal of experimental and clinical research
pub_type: 杂志文章
doi:10.12659/msm.905393
更新日期:2018-01-23 00:00:00
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journal_title:Medical science monitor : international medical journal of experimental and clinical research
pub_type: 杂志文章
doi:10.12659/msm.903660
更新日期:2017-09-15 00:00:00
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journal_title:Medical science monitor : international medical journal of experimental and clinical research
pub_type: 杂志文章
doi:10.12659/MSM.893467
更新日期:2015-06-24 00:00:00
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journal_title:Medical science monitor : international medical journal of experimental and clinical research
pub_type: 杂志文章
doi:
更新日期:2003-06-01 00:00:00
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journal_title:Medical science monitor : international medical journal of experimental and clinical research
pub_type: 杂志文章
doi:
更新日期:2005-07-01 00:00:00
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journal_title:Medical science monitor : international medical journal of experimental and clinical research
pub_type: 杂志文章
doi:10.12659/MSM.917068
更新日期:2019-12-25 00:00:00
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journal_title:Medical science monitor : international medical journal of experimental and clinical research
pub_type: 杂志文章
doi:10.12659/msm.903472
更新日期:2017-09-26 00:00:00
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journal_title:Medical science monitor : international medical journal of experimental and clinical research
pub_type: 杂志文章
doi:
更新日期:2007-05-01 00:00:00
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journal_title:Medical science monitor : international medical journal of experimental and clinical research
pub_type: 杂志文章
doi:10.12659/msm.902705
更新日期:2017-08-15 00:00:00
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journal_title:Medical science monitor : international medical journal of experimental and clinical research
pub_type: 杂志文章
doi:10.12659/MSM.929834
更新日期:2021-01-17 00:00:00
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journal_title:Medical science monitor : international medical journal of experimental and clinical research
pub_type: 杂志文章,评审
doi:
更新日期:2001-07-01 00:00:00
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journal_title:Medical science monitor : international medical journal of experimental and clinical research
pub_type: 杂志文章
doi:10.12659/MSM.889820
更新日期:2014-02-01 00:00:00
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journal_title:Medical science monitor : international medical journal of experimental and clinical research
pub_type: 杂志文章
doi:
更新日期:2009-11-01 00:00:00
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journal_title:Medical science monitor : international medical journal of experimental and clinical research
pub_type: 杂志文章
doi:
更新日期:2005-12-01 00:00:00
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journal_title:Medical science monitor : international medical journal of experimental and clinical research
pub_type: 杂志文章
doi:10.12659/MSM.892112
更新日期:2015-01-28 00:00:00
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journal_title:Medical science monitor : international medical journal of experimental and clinical research
pub_type: 杂志文章
doi:
更新日期:2009-07-01 00:00:00