Helios Expression Is Downregulated on CD8+ Treg in Two Mouse Models of Lupus During Disease Progression
T-cell–mediated autoimmunity reflects an imbalance in this compartment that is not restored by tolerogenic immune cells, e.g., regulatory T cells or tolerogenic dendritic cells (tolDCs). Although studies into T-cell equilibrium have mainly focused on regulatory CD4+FoxP3+ T cells (CD4+ Tregs), recen...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Frontiers Media S.A.
2022-06-01
|
| Series: | Frontiers in Immunology |
| Subjects: | |
| Online Access: | https://www.frontiersin.org/articles/10.3389/fimmu.2022.922958/full |
| _version_ | 1818215720876507136 |
|---|---|
| author | Andrés París-Muñoz Andrés París-Muñoz Gonzalo Aizpurua Gonzalo Aizpurua Domingo F. Barber Domingo F. Barber |
| author_facet | Andrés París-Muñoz Andrés París-Muñoz Gonzalo Aizpurua Gonzalo Aizpurua Domingo F. Barber Domingo F. Barber |
| author_sort | Andrés París-Muñoz |
| collection | DOAJ |
| description | T-cell–mediated autoimmunity reflects an imbalance in this compartment that is not restored by tolerogenic immune cells, e.g., regulatory T cells or tolerogenic dendritic cells (tolDCs). Although studies into T-cell equilibrium have mainly focused on regulatory CD4+FoxP3+ T cells (CD4+ Tregs), recent findings on the lesser known CD8+ Tregs (CD44+CD122+Ly49+) have highlighted their non-redundant role in regulating lupus-like disease and their regulatory phenotype facilitated by the transcription factor Helios in mice and humans. However, there are still remaining questions about Helios regulation and dynamics in different autoimmune contexts. Here, we show the absence of CD8+ Tregs in two lupus-prone murine models: MRL/MPJ and MRL/lpr, in comparison with a non-prone mouse strain like C57BL/6. We observed that all MRL animals showed a dramatically reduced population of CD8+ Tregs and a greater Helios downregulation on diseased mice. Helios induction was detected preferentially on CD8+ T cells from OT-I mice co-cultured with tolDCs from C57BL/6 but not in MRL animals. Furthermore, the Helios profile was also altered in other relevant T-cell populations implicated in lupus, such as CD4+ Tregs, conventional CD4+, and double-negative T cells. Together, these findings could make Helios a versatile maker across the T-cell repertoire that is capable of differentiating lupus disease states. |
| first_indexed | 2024-12-12T06:40:34Z |
| format | Article |
| id | doaj.art-1034ff396c2c48a4abad3f2fb1b8bae5 |
| institution | Directory Open Access Journal |
| issn | 1664-3224 |
| language | English |
| last_indexed | 2024-12-12T06:40:34Z |
| publishDate | 2022-06-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Immunology |
| spelling | doaj.art-1034ff396c2c48a4abad3f2fb1b8bae52022-12-22T00:34:20ZengFrontiers Media S.A.Frontiers in Immunology1664-32242022-06-011310.3389/fimmu.2022.922958922958Helios Expression Is Downregulated on CD8+ Treg in Two Mouse Models of Lupus During Disease ProgressionAndrés París-Muñoz0Andrés París-Muñoz1Gonzalo Aizpurua2Gonzalo Aizpurua3Domingo F. Barber4Domingo F. Barber5Department of Immunology and Oncology, Centro Nacional de Biotecnología (CNB-CSIC), Madrid, SpainNanoBiomedicine Initiative, Centro Nacional de Biotecnología (CNB-CSIC), Madrid, SpainDepartment of Immunology and Oncology, Centro Nacional de Biotecnología (CNB-CSIC), Madrid, SpainNanoBiomedicine Initiative, Centro Nacional de Biotecnología (CNB-CSIC), Madrid, SpainDepartment of Immunology and Oncology, Centro Nacional de Biotecnología (CNB-CSIC), Madrid, SpainNanoBiomedicine Initiative, Centro Nacional de Biotecnología (CNB-CSIC), Madrid, SpainT-cell–mediated autoimmunity reflects an imbalance in this compartment that is not restored by tolerogenic immune cells, e.g., regulatory T cells or tolerogenic dendritic cells (tolDCs). Although studies into T-cell equilibrium have mainly focused on regulatory CD4+FoxP3+ T cells (CD4+ Tregs), recent findings on the lesser known CD8+ Tregs (CD44+CD122+Ly49+) have highlighted their non-redundant role in regulating lupus-like disease and their regulatory phenotype facilitated by the transcription factor Helios in mice and humans. However, there are still remaining questions about Helios regulation and dynamics in different autoimmune contexts. Here, we show the absence of CD8+ Tregs in two lupus-prone murine models: MRL/MPJ and MRL/lpr, in comparison with a non-prone mouse strain like C57BL/6. We observed that all MRL animals showed a dramatically reduced population of CD8+ Tregs and a greater Helios downregulation on diseased mice. Helios induction was detected preferentially on CD8+ T cells from OT-I mice co-cultured with tolDCs from C57BL/6 but not in MRL animals. Furthermore, the Helios profile was also altered in other relevant T-cell populations implicated in lupus, such as CD4+ Tregs, conventional CD4+, and double-negative T cells. Together, these findings could make Helios a versatile maker across the T-cell repertoire that is capable of differentiating lupus disease states.https://www.frontiersin.org/articles/10.3389/fimmu.2022.922958/fullHeliosCD8+ Treglupusautoimmunitydendritic cellstolerogenic DC |
| spellingShingle | Andrés París-Muñoz Andrés París-Muñoz Gonzalo Aizpurua Gonzalo Aizpurua Domingo F. Barber Domingo F. Barber Helios Expression Is Downregulated on CD8+ Treg in Two Mouse Models of Lupus During Disease Progression Frontiers in Immunology Helios CD8+ Treg lupus autoimmunity dendritic cells tolerogenic DC |
| title | Helios Expression Is Downregulated on CD8+ Treg in Two Mouse Models of Lupus During Disease Progression |
| title_full | Helios Expression Is Downregulated on CD8+ Treg in Two Mouse Models of Lupus During Disease Progression |
| title_fullStr | Helios Expression Is Downregulated on CD8+ Treg in Two Mouse Models of Lupus During Disease Progression |
| title_full_unstemmed | Helios Expression Is Downregulated on CD8+ Treg in Two Mouse Models of Lupus During Disease Progression |
| title_short | Helios Expression Is Downregulated on CD8+ Treg in Two Mouse Models of Lupus During Disease Progression |
| title_sort | helios expression is downregulated on cd8 treg in two mouse models of lupus during disease progression |
| topic | Helios CD8+ Treg lupus autoimmunity dendritic cells tolerogenic DC |
| url | https://www.frontiersin.org/articles/10.3389/fimmu.2022.922958/full |
| work_keys_str_mv | AT andresparismunoz heliosexpressionisdownregulatedoncd8tregintwomousemodelsoflupusduringdiseaseprogression AT andresparismunoz heliosexpressionisdownregulatedoncd8tregintwomousemodelsoflupusduringdiseaseprogression AT gonzaloaizpurua heliosexpressionisdownregulatedoncd8tregintwomousemodelsoflupusduringdiseaseprogression AT gonzaloaizpurua heliosexpressionisdownregulatedoncd8tregintwomousemodelsoflupusduringdiseaseprogression AT domingofbarber heliosexpressionisdownregulatedoncd8tregintwomousemodelsoflupusduringdiseaseprogression AT domingofbarber heliosexpressionisdownregulatedoncd8tregintwomousemodelsoflupusduringdiseaseprogression |