Downregulation of the polyamine regulator spermidine/spermine N(1)-acetyltransferase by Epstein-Barr virus in a Burkitt's lymphoma cell line.

Downregulation of the polyamine regulator spermidine/spermine N(1)-acetyltransferase by Epstein-Barr virus in a Burkitt's lymphoma cell line.
复制标题

DOI:
10.1016/j.virusres.2013.07.004
复制
发表时间:
2013-10
期刊:
影响因子:
5
通讯作者:
Scott RS
Scott RS
中科院分区:
医学3区
文献类型:
--
作者:
Shi M;Gan YJ;Davis TO;Scott RS

文献摘要

参考文献

被引文献

相似文献

虽然在Akata Burkitt淋巴瘤中EBV基因的表达受到严格的限制,但在EB病毒(EBV)消失后,从恶性表型到非恶性表型的转变是病毒对肿瘤发生的贡献的证据。对保留或丢失EBV的Akata亚克隆的全球细胞基因表达的检测发现,精胺/精胺N1-乙酰转移酶(SAT1)是一种诱导性酶,其多胺的分解代谢影响细胞的凋亡和生长,是EBV丢失后下调的有限数量的细胞基因之一。EBV阴性的AKATA克隆的再次感染使SAT1的mRNA降低到与双亲EBV阳性的AKATA相当的水平。EBV阳性的AKATA细胞显示SAT1酶活性降低,并伴随着细胞内多胺成分的改变。在EBV阳性的BL中,SAT1的减少是一种转录效应。在EBV阴性的AKATA克隆中强制表达病毒BCL2同源物BHRF1会降低SAT1的mRNA。C-myc基因表达异常可增强鸟氨酸脱羧酶的表达,促进多胺合成,EBV抑制多胺分解代谢则成为一种补充性改变,有利于淋巴瘤的发生。
Transition of Akata Burkitt's lymphoma (BL) from a malignant to nonmalignant phenotype upon loss of Epstein-Barr virus (EBV) is evidence for a viral contribution to tumorigenesis despite the tight restriction of EBV gene expression in BL. Examination of global cellular gene expression in Akata subclones that retained or lost EBV identified spermidine/spermine N1-acetyltransferase (SAT1), an inducible enzyme whose catabolism of polyamines affects both apoptosis and cell growth, as one of a limited number of cellular genes downregulated upon EBV loss. Re-infection of the EBV-negative Akata clone reduced SAT1 mRNA to a level comparable with the parental EBV-positive Akata. EBV-positive Akata cells demonstrated decreased SAT1 enzyme activity concomitant with altered intracellular polyamine constituents. Reduction of SAT1 in EBV-positive BL was a transcriptional effect. Forced expression of the viral BCL2 homologue, BHRF1, in an EBV-negative Akata clone reduced SAT1 mRNA. Whereas dysregulated c-myc may enhance expression of ornithine decarboxylase elevating polyamine synthesis, EBV repression of polyamine catabolism becomes a complementary alteration favorable to BL lymphomagenesis.
DOI: 10.1016/s0378-4347(00)83621-x
发表时间: 1986-07-11
期刊: JOURNAL OF CHROMATOGRAPHY
影响因子: --
作者:
KABRA, PM;LEE, HK;MARTON, LJ
通讯作者: MARTON, LJ
DOI: 10.1128/jvi.73.12.9827-9831.1999
发表时间: 1999-12-01
影响因子: 5.4
作者:
Komano, J;Maruo, S;Takada, K
通讯作者: Takada, K
DOI: 10.1021/bi9612273
发表时间: 1996-11-12
期刊: BIOCHEMISTRY
影响因子: 2.9
作者:
FogelPetrovic, M;Vujcic, S;Porter, CW
通讯作者: Porter, CW
DOI: 10.1371/journal.ppat.1000341
发表时间: 2009-03
期刊: PLoS pathogens
影响因子: 6.7
作者:
Kelly GL;Long HM;Stylianou J;Thomas WA;Leese A;Bell AI;Bornkamm GW;Mautner J;Rickinson AB;Rowe M
通讯作者: Rowe M
DOI: 10.1093/emboj/19.24.6742
发表时间: 2000-12-15
期刊: EMBO JOURNAL
影响因子: 11.4
作者:
Kitagawa, N;Goto, M;Takada, K
通讯作者: Takada, K