A novel approach to thymic rejuvenation in the aged.
A novel approach to thymic rejuvenation in the aged.
复制标题
老年人胸腺恢复活力的新方法。
DOI:
10.1089/rej.2006.9.134
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发表时间:
2006
影响因子:
2.6
通讯作者:
Thoman,MarilynL
中科院分区:
文献类型:
--
作者:
Virts,ElizabethL;Phillips,JoyA;Thoman,MarilynL
With advancing age, the mammalian thymus undergoes involution, a progressive loss of architectural integrity and lymphoid cellularity that results in reduced T lymphopoiesis. Thymic involution also is associated with extreme malnutrition and states of immune deficiency, such as active HIV infection, after chemotherapy, or during pregnancy. Immune recovery appears to require restoration of normal thymopoiesis. Although several means are known to increase thymic cellularity in the aged, including systemic administration of hormones, androgen ablation, and thymic tissue transplantation, each suffers from specific limitations that prevent widespread application. This paper presents a novel approach to rejuvenate T cell differentiation in the aged that employs intrathymic implantation of engineered stromal cells. Two different proteins have been examined for their impact on thymopoiesis after delivery by somatic cell implantation. Intrathymic injection of IL-7–producing stromal cells enhances the earliest specification steps of T cell development, resulting in the increased representation of pro-T cells in the aged thymus. In contrast, increasing the intrathymic levels of sonic hedgehog diminishes this aspect of T cell poiesis.
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影响因子:
4.4
作者:
Cruz Gutiérrez;R. Sacedón;Carmen Hernández;Teresa Cejalvo;T. Crompton;A. Zapata;A. Varas;Á. Vicente
通讯作者:
Á. Vicente
影响因子:
4.4
作者:
Hyeyoung Min;E. Montecino;K. Dorshkind
通讯作者:
K. Dorshkind
DOI:
--
发表时间:
1960
期刊:
The Anatomical Record
影响因子:
--
作者:
G. Santisteban
通讯作者:
G. Santisteban
DOI:
--
发表时间:
1992
期刊:
Journal of immunology (Baltimore, Md. : 1950)
影响因子:
--
作者:
Gonzalez-Quintial,R;Theofilopoulos,AN
通讯作者:
Theofilopoulos,AN
影响因子:
15.9
作者:
Flores, KG;Li, J;Hale, LP
通讯作者:
Hale, LP