Human papillomavirus 16 E5 induces bi-nucleated cell formation by cell-cell fusion.

Human papillomavirus 16 E5 induces bi-nucleated cell formation by cell-cell fusion.
复制标题

DOI:
10.1016/j.virol.2008.10.011
复制
发表时间:
2009-02-05
期刊:
影响因子:
3.7
通讯作者:
Ceresa, Brian P.
Ceresa, Brian P.
中科院分区:
医学3区
文献类型:
--
作者:
Hu, Lulin;Plafker, Kendra;Vorozhko, Valeriya;Zuna, Rosemary E.;Hanigan, Marie H.;Gorbsky, Gary J.;Plafker, Scott M.;Angeletti, Peter C.;Ceresa, Brian P.

文献摘要

参考文献

被引文献

相似文献

人乳头瘤病毒(HPV)16是一种DNA病毒,编码三种癌基因-E5,E6和E7。E6和E7蛋白作为肿瘤抑制剂的作用已得到充分证实,但E5对恶性转化的贡献是有争议的。使用自发永生化的人角质形成细胞(HaCaT细胞),我们证明了HPV 16 E5的表达是必要的,足以形成双核细胞,宫颈癌前病变的共同特征。非致癌性HPV6b的E5表达不产生双核细胞。视频显微镜和生化分析表明,双核通过细胞融合产生。尽管大多数E5诱导的双核细胞无法繁殖,但HPV 16 E6/E7的共表达增强了这些细胞的增殖。HPV 16 E6/E7的表达也增加了双核细胞集落的形成。这些发现确定了HPV 16 E5的新作用,并支持HPV 16癌基因的互补作用导致致癌诱导的模型。
Human Papillomaviruses (HPV) 16 is a DNA virus encoding three oncogenes – E5, E6, and E7. The E6 and E7 proteins have well-established roles as inhibitors of tumor suppression, but the contribution of E5 to malignant transformation is controversial. Using spontaneously immortalized human keratinocytes (HaCaT cells), we demonstrate that expression of HPV16 E5 is necessary and sufficient for the formation of bi-nucleated cells, a common characteristic of precancerous cervical lesions. Expression of E5 from non-carcinogenic HPV6b does not produce bi-nucleate cells. Video microscopy and biochemical analyses reveal that bi-nucleates arise through cell-cell fusion. Although most E5-induced bi-nucleates fail to propagate, co-expression of HPV16 E6/E7 enhances the proliferation of these cells. Expression of HPV16 E6/E7 also increases bi-nucleated cell colony formation. These findings identify a new role for HPV16 E5 and support a model in which complementary roles of the HPV16 oncogenes lead to the induction of carcinogenesis.
DOI: 10.1038/sj.onc.1209276
发表时间: 2006-04-01
期刊: ONCOGENE
影响因子: 8
作者:
Incassati, A;Patel, D;McCance, DJ
通讯作者: McCance, DJ
DOI: 10.1016/s1470-2045(05)70086-3
发表时间: 2005-04-01
期刊: LANCET ONCOLOGY
影响因子: 51.1
作者:
Cogliano, V;Baan, R;El Ghissassi, F
通讯作者: El Ghissassi, F
DOI: 10.1002/ijc.20244
发表时间: 2004-08-20
影响因子: 6.4
作者:
Muñoz, N;Bosch, FX;Meijer, CJLM
通讯作者: Meijer, CJLM
DOI: 10.1016/j.cub.2007.01.049
发表时间: 2007-03-06
期刊: CURRENT BIOLOGY
影响因子: 9.2
作者:
Duelli, Dominik M.;Padilla-Nash, Hesed M.;Lazebnik, Yuri
通讯作者: Lazebnik, Yuri
DOI: 10.1128/jvi.76.23.12162-12172.2002
发表时间: 2002-12-01
影响因子: 5.4
作者:
Kabsch, K;Alonso, A
通讯作者: Alonso, A