Effects of HIV-1-induced CD1c and CD1d modulation and endogenous lipid presentation on CD1c-restricted T-cell activation.
Effects of HIV-1-induced CD1c and CD1d modulation and endogenous lipid presentation on CD1c-restricted T-cell activation.
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DOI:
10.1186/1471-2172-14-4
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发表时间:
2013-01-24
期刊:
影响因子:
3
通讯作者:
Tsuji M
中科院分区:
文献类型:
--
作者:
Kelly H;Mandraju R;Coelho-dos-Reis JG;Tsuji M
It has been shown that human immunodeficiency virus (HIV)-1 infection induces the production of endogenous lipids required for effective viral production, and the cluster of differentiation (CD)1 molecule CD1d is downregulated by HIV-1 infection. However, the role of endogenous lipid presentation and the implications of CD1 downregulation by HIV-1 infection have not yet been characterized. In this study, we observed downregulation of both CD1c and CD1d expression through a Vpu-dependent and Nef-independent mechanism, and the concomitant HIV-1-induced production of host cholesterol decreased the extent of CD1c and CD1d modulation. While the modest downregulation of CD1c by HIV-1 infection decreased the ability of CD1c-restricted T cells to respond and secrete interferon-γ, the cholesterol upregulation in the same cells by HIV-1 infection appears to limit the downregulation of CD1c. The two conflicting HIV-1-mediated changes in CD1c expression appear to minimize the modulation of CD1c expression, thus leading the host to maintain a CD1c-restricted T-cell response against HIV-1.
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影响因子:
64.8
作者:
PORCELLI, S;MORITA, CT;BRENNER, MB
通讯作者:
BRENNER, MB
DOI:
10.1084/jem.186.1.109
发表时间:
1997-07-07
期刊:
The Journal of experimental medicine
影响因子:
--
作者:
Exley M;Garcia J;Balk SP;Porcelli S
通讯作者:
Porcelli S
影响因子:
4.4
作者:
Grubor-Bauk, B;Simmons, A;Speck, PG
通讯作者:
Speck, PG
DOI:
10.1073/pnas.241320298
发表时间:
2001-11-20
影响因子:
11.1
作者:
Ono, A;Freed, EO
通讯作者:
Freed, EO
影响因子:
4.4
作者:
Kawashima, T;Norose, Y;Sugita, M
通讯作者:
Sugita, M