bcl-xL Is Critical for Dendritic Cell Survival In Vivo1
bcl-xL Is Critical for Dendritic Cell Survival In Vivo1
复制标题
bcl-xL 对于体内树突状细胞的存活至关重要1
作者:
Huiming Hon;E. Rucker;L. Hennighausen;Joshy Jacob
Dendritic cells (DC) are important regulators of immune function, transporting Ags from the periphery to draining lymph nodes (dLN) where they prime Ag-specific T lymphocytes. The magnitude of the immune response generated depends upon the longevity of the Ag-bearing DC in lymphoid tissues. We hypothesized that the control of DC survival is regulated by the antiapoptotic factor bcl-xL. Gene gun immunization of dual-expression DNA vaccines into a bcl-xfl/fl mouse resulted in the delivery of Ag, as well as selective deletion of the bcl-x gene in directly transfected, skin-residing DC. bcl-x-deficient DC failed to mount effective immune responses, and this corresponded to their rapid disappearance from the dLN due to apoptosis. We confirmed these results using RNA interference to specifically silence the antiapoptotic bcl-xL isoform in targeted skin-residing DC of C57BL/6 mice. In addition, delivery of bcl-xL in trans complemented the bcl-x deficiency in DC of bcl-xfl/fl mice, resulting in the maintenance of normal levels of Ag-bearing DC in the dLN. Taken together, our work demonstrates that the bcl-xL isoform is critical for survival of skin-derived, Ag-bearing DC in vivo.
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影响因子:
4.6
作者:
K. Wagner;E. Claudio;E. Rucker;G. Riedlinger;C. Broussard;P. Schwartzberg;U. Siebenlist;L. Hennighausen
通讯作者:
K. Wagner;E. Claudio;E. Rucker;G. Riedlinger;C. Broussard;P. Schwartzberg;U. Siebenlist;L. Hennighausen
DOI:
--
发表时间:
1992
期刊:
Seminars in respiratory infections
影响因子:
--
作者:
Bender,BS;SmallJr,PA
通讯作者:
SmallJr,PA
DOI:
--
发表时间:
1997
期刊:
Journal of immunology (Baltimore, Md. : 1950)
影响因子:
--
作者:
Grillot,DA;Gonzalez-Garcia,M;Ekhterae,D;Duan,L;Inohara,N;Ohta,S;Seldin,MF;Nunez,G
通讯作者:
Nunez,G
DOI:
10.1073/pnas.85.8.2603
发表时间:
1988-04-01
影响因子:
11.1
作者:
NOLAN, GP;FIERING, S;HERZENBERG, LA
通讯作者:
HERZENBERG, LA