Differential role of all-trans retinoic acid in promoting the development of CD4+ and CD8+ regulatory T cells.
J Leukoc Biol
; 95(2): 275-83, 2014 Feb.
Article
en En
| MEDLINE
| ID: mdl-24082012
ABSTRACT
It is known that ATRA promotes the development of TGF-ß-induced CD4(+)Foxp3(+) iTregs, which play a vital role in the prevention of autoimmune diseases; however, the role of ATRA in facilitating the differentiation and function of CD8(+)Foxp3(+) iTregs remains elusive. Using a head-to-head comparison, we found that ATRA promoted expression of Foxp3 and development of CD4(+) iTregs, but it did not promote Foxp3 expression on CD8(+) cells. Using a standard in vitro assay, we demonstrated that CD8(+) iTregs induced by TGF-ß and ATRA were not superior to CD8(+) iTregs induced by TGF-ß alone. In cGVHD, in a typical lupus syndrome model where DBA2 spleen cells were transferred to DBA2xC57BL/6 F1 mice, we observed that both CD8(+) iTregs induced by TGF-ß and ATRA and those induced by TGF-ß alone had similar therapeutic effects. ATRA did not boost but, conversely, impaired the differentiation and function of human CD8(+) iTregs. CD8(+) cells expressed the ATRA receptor RAR and responded to ATRA, similar to CD4(+) cells. We have identified the differential role of ATRA in promoting Foxp3(+) Tregs in CD4(+) and CD8(+) cell populations. These results will help to determine a protocol for developing different Treg cell populations and may provide novel insights into clinical cell therapy for patients with autoimmune diseases and those needing organ transplantation.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Tretinoina
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Linfocitos T Reguladores
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Linfocitos T CD8-positivos
Tipo de estudio:
Guideline
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Prognostic_studies
Límite:
Animals
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Female
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Humans
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Male
Idioma:
En
Revista:
J Leukoc Biol
Año:
2014
Tipo del documento:
Article