Bone marrow stromal cell antigen 2 (BST-2) restricts mouse mammary tumor virus (MMTV) replication in vivo.

Bone marrow stromal cell antigen 2 (BST-2) restricts mouse mammary tumor virus (MMTV) replication in vivo.
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DOI:
10.1186/1742-4690-9-10
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发表时间:
2012-01-27
期刊:
影响因子:
3.3
通讯作者:
Okeoma CM
Okeoma CM
中科院分区:
医学2区
文献类型:
--
作者:
Jones PH;Mehta HV;Maric M;Roller RJ;Okeoma CM

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骨髓基质细胞抗原2(BST-2)是一种细胞因子,可限制人类免疫缺陷病毒(HIV-1)等病毒从感染细胞表面排出,防止新细胞感染。Bst-2在大多数细胞类型中都有不同程度的表达,并且它的表达被I型干扰素-α等细胞因子所增强。本研究以β-逆转录病毒--小鼠乳腺肿瘤病毒(MMTV)为模型,研究了小鼠BST-2在体内宿主感染中的作用。通过使用RNA干扰,我们发现BST-2的缺失增强了MMTV在培养的乳腺肿瘤细胞和体内的复制。在培养细胞中,BST-2抑制病毒在培养液中的积累,并与病毒结构蛋白共定位于细胞表面。此外,扫描电子显微镜和透射电子显微镜显示,在干扰素α刺激的细胞表面有MMTV的聚集。我们的数据提供了BST-2限制自然感染细胞释放MMTV的证据,并且BST-2在体内是一种抗病毒因子。
Bone marrow stromal cell antigen 2 (BST-2) is a cellular factor that restricts the egress of viruses such as human immunodeficiency virus (HIV-1) from the surface of infected cells, preventing infection of new cells. BST-2 is variably expressed in most cell types, and its expression is enhanced by cytokines such as type I interferon alpha (IFN-α). In this present study, we used the beta-retrovirus, mouse mammary tumor virus (MMTV) as a model to examine the role of mouse BST-2 in host infection in vivo. By using RNA interference, we show that loss of BST-2 enhances MMTV replication in cultured mammary tumor cells and in vivo. In cultured cells, BST-2 inhibits virus accumulation in the culture medium, and co-localizes at the cell surface with virus structural proteins. Furthermore, both scanning electron micrograph (SEM) and transmission electron micrograph (TEM) show that MMTV accumulates on the surface of IFNα-stimulated cells. Our data provide evidence that BST-2 restricts MMTV release from naturally infected cells and that BST-2 is an antiviral factor in vivo.
DOI: 10.1128/jvi.02728-06
发表时间: 2007-04-01
影响因子: 5.4
作者:
Cecilia Courreges, Maria;Burzyn, Dalia;Ross, Susan R.
通讯作者: Ross, Susan R.
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发表时间: 2010-04-15
期刊: PLoS pathogens
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DOI: 10.1128/jvi.71.8.6044-6048.1997
发表时间: 1997-08-01
影响因子: 5.4
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发表时间: 2007-02-22
期刊: NATURE
影响因子: 64.8
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Okeoma, Chioma M.;Lovsin, Nika;Ross, Susan R.
通讯作者: Ross, Susan R.
DOI: 10.1016/0092-8674(86)90659-8
发表时间: 1986-08-01
期刊: CELL
影响因子: 64.5
作者:
MIESFELD, R;RUSCONI, S;YAMAMOTO, KR
通讯作者: YAMAMOTO, KR