Mucosal-Associated Invariant T Cells Display a Poor Reconstitution and Altered Phenotype after Allogeneic Hematopoietic Stem Cell Transplantation

Mucosal-associated invariant T (MAIT) cells are innate-like T cells which are important in the defense against certain bacteria and yeast. The reconstitution of MAIT cells after allogeneic hematopoietic stem cell transplantation (HSCT) is not known. We investigated MAIT cell phenotype and function i...
Ausführliche Beschreibung

Gespeichert in:

Autor*in:	Martin Solders [verfasserIn] Tom Erkers [verfasserIn] Laia Gorchs [verfasserIn] Thomas Poiret [verfasserIn] Mats Remberger [verfasserIn] Isabelle Magalhaes [verfasserIn] Helen Kaipe [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2017

Schlagwörter:	allogeneic hematopoietic stem cell transplantation mucosal-associated invariant T cells immune reconstitution graft-versus-host disease sirolimus PD-1

Übergeordnetes Werk:	In: Frontiers in Immunology - Frontiers Media S.A., 2011, 8(2017)
Übergeordnetes Werk:	volume:8 ; year:2017

Links:	Link aufrufen Link aufrufen Link aufrufen Journal toc

DOI / URN:	10.3389/fimmu.2017.01861

Katalog-ID:	DOAJ017241472

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520			\|a Mucosal-associated invariant T (MAIT) cells are innate-like T cells which are important in the defense against certain bacteria and yeast. The reconstitution of MAIT cells after allogeneic hematopoietic stem cell transplantation (HSCT) is not known. We investigated MAIT cell phenotype and function in 17 patients devoid of relapse and severe graft-versus-host disease (GvHD) in paired samples collected 1–2, 3–6, 12, and 24 months after transplantation. Data were compared to 17 healthy controls (HC), as well as 22 patients with acute GvHD grade 2–3. The frequency of MAIT cells within CD3+ cells was approximately 10-fold lower than in HC and did not increase over the 2 years following HSCT. MAIT cells in HSCT patients displayed an elevated expression of CD69 and intracellular granzyme B and were predominantly composed of CD4/CD8 double-negative cells. The expression of PD-1 on MAIT cells was low and did not change during the observational time, whereas the CD3+CD161dim/negTCRVα7.2dim/neg cells (non-MAIT T cells) displayed a high expression early after HSCT that decreased to normal levels at 24 months. MAIT cells collected 2–6 months post-HSCT showed an impaired IFN-γ and perforin response after bacterial stimulation, but the response was restored at 24 months. Patients with acute GvHD had similar proportions of MAIT cells as patients with grade 0–1, but consisted mainly of CD8+ cells. Finally, MAIT cells were more sensitive to cyclosporine A and sirolimus than non-MAIT T cells. To conclude, MAIT cell reconstitution following HSCT is deficient compared to non-MAIT T cells and GvHD grade ≥2 is not correlated with MAIT cell frequency. MAIT cell functionality was impaired early after HSCT, but restored at 24 months post-HSCT. MAIT cells have an increased sensibility to common immunosuppressive drugs, which maybe could explain their hampered reconstitution after HSCT.
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author_variant	m s ms t e te l g lg t p tp m r mr m r mr i m im h k hk h k hk
matchkey_str	article:16643224:2017----::uoaascaeivratclsipaaoreosiuinnatrdhntpatrloeecea
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allfields	10.3389/fimmu.2017.01861 doi (DE-627)DOAJ017241472 (DE-599)DOAJb3583889d85b40afbc7e15c730408b57 DE-627 ger DE-627 rakwb eng RC581-607 Martin Solders verfasserin aut Mucosal-Associated Invariant T Cells Display a Poor Reconstitution and Altered Phenotype after Allogeneic Hematopoietic Stem Cell Transplantation 2017 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Mucosal-associated invariant T (MAIT) cells are innate-like T cells which are important in the defense against certain bacteria and yeast. The reconstitution of MAIT cells after allogeneic hematopoietic stem cell transplantation (HSCT) is not known. We investigated MAIT cell phenotype and function in 17 patients devoid of relapse and severe graft-versus-host disease (GvHD) in paired samples collected 1–2, 3–6, 12, and 24 months after transplantation. Data were compared to 17 healthy controls (HC), as well as 22 patients with acute GvHD grade 2–3. The frequency of MAIT cells within CD3+ cells was approximately 10-fold lower than in HC and did not increase over the 2 years following HSCT. MAIT cells in HSCT patients displayed an elevated expression of CD69 and intracellular granzyme B and were predominantly composed of CD4/CD8 double-negative cells. The expression of PD-1 on MAIT cells was low and did not change during the observational time, whereas the CD3+CD161dim/negTCRVα7.2dim/neg cells (non-MAIT T cells) displayed a high expression early after HSCT that decreased to normal levels at 24 months. MAIT cells collected 2–6 months post-HSCT showed an impaired IFN-γ and perforin response after bacterial stimulation, but the response was restored at 24 months. Patients with acute GvHD had similar proportions of MAIT cells as patients with grade 0–1, but consisted mainly of CD8+ cells. Finally, MAIT cells were more sensitive to cyclosporine A and sirolimus than non-MAIT T cells. To conclude, MAIT cell reconstitution following HSCT is deficient compared to non-MAIT T cells and GvHD grade ≥2 is not correlated with MAIT cell frequency. MAIT cell functionality was impaired early after HSCT, but restored at 24 months post-HSCT. MAIT cells have an increased sensibility to common immunosuppressive drugs, which maybe could explain their hampered reconstitution after HSCT. allogeneic hematopoietic stem cell transplantation mucosal-associated invariant T cells immune reconstitution graft-versus-host disease sirolimus PD-1 Immunologic diseases. Allergy Tom Erkers verfasserin aut Laia Gorchs verfasserin aut Thomas Poiret verfasserin aut Mats Remberger verfasserin aut Mats Remberger verfasserin aut Isabelle Magalhaes verfasserin aut Helen Kaipe verfasserin aut Helen Kaipe verfasserin aut In Frontiers in Immunology Frontiers Media S.A., 2011 8(2017) (DE-627)657998354 (DE-600)2606827-8 16643224 nnns volume:8 year:2017 https://doi.org/10.3389/fimmu.2017.01861 kostenfrei https://doaj.org/article/b3583889d85b40afbc7e15c730408b57 kostenfrei http://journal.frontiersin.org/article/10.3389/fimmu.2017.01861/full kostenfrei https://doaj.org/toc/1664-3224 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2003 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 8 2017
spelling	10.3389/fimmu.2017.01861 doi (DE-627)DOAJ017241472 (DE-599)DOAJb3583889d85b40afbc7e15c730408b57 DE-627 ger DE-627 rakwb eng RC581-607 Martin Solders verfasserin aut Mucosal-Associated Invariant T Cells Display a Poor Reconstitution and Altered Phenotype after Allogeneic Hematopoietic Stem Cell Transplantation 2017 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Mucosal-associated invariant T (MAIT) cells are innate-like T cells which are important in the defense against certain bacteria and yeast. The reconstitution of MAIT cells after allogeneic hematopoietic stem cell transplantation (HSCT) is not known. We investigated MAIT cell phenotype and function in 17 patients devoid of relapse and severe graft-versus-host disease (GvHD) in paired samples collected 1–2, 3–6, 12, and 24 months after transplantation. Data were compared to 17 healthy controls (HC), as well as 22 patients with acute GvHD grade 2–3. The frequency of MAIT cells within CD3+ cells was approximately 10-fold lower than in HC and did not increase over the 2 years following HSCT. MAIT cells in HSCT patients displayed an elevated expression of CD69 and intracellular granzyme B and were predominantly composed of CD4/CD8 double-negative cells. The expression of PD-1 on MAIT cells was low and did not change during the observational time, whereas the CD3+CD161dim/negTCRVα7.2dim/neg cells (non-MAIT T cells) displayed a high expression early after HSCT that decreased to normal levels at 24 months. MAIT cells collected 2–6 months post-HSCT showed an impaired IFN-γ and perforin response after bacterial stimulation, but the response was restored at 24 months. Patients with acute GvHD had similar proportions of MAIT cells as patients with grade 0–1, but consisted mainly of CD8+ cells. Finally, MAIT cells were more sensitive to cyclosporine A and sirolimus than non-MAIT T cells. To conclude, MAIT cell reconstitution following HSCT is deficient compared to non-MAIT T cells and GvHD grade ≥2 is not correlated with MAIT cell frequency. MAIT cell functionality was impaired early after HSCT, but restored at 24 months post-HSCT. MAIT cells have an increased sensibility to common immunosuppressive drugs, which maybe could explain their hampered reconstitution after HSCT. allogeneic hematopoietic stem cell transplantation mucosal-associated invariant T cells immune reconstitution graft-versus-host disease sirolimus PD-1 Immunologic diseases. Allergy Tom Erkers verfasserin aut Laia Gorchs verfasserin aut Thomas Poiret verfasserin aut Mats Remberger verfasserin aut Mats Remberger verfasserin aut Isabelle Magalhaes verfasserin aut Helen Kaipe verfasserin aut Helen Kaipe verfasserin aut In Frontiers in Immunology Frontiers Media S.A., 2011 8(2017) (DE-627)657998354 (DE-600)2606827-8 16643224 nnns volume:8 year:2017 https://doi.org/10.3389/fimmu.2017.01861 kostenfrei https://doaj.org/article/b3583889d85b40afbc7e15c730408b57 kostenfrei http://journal.frontiersin.org/article/10.3389/fimmu.2017.01861/full kostenfrei https://doaj.org/toc/1664-3224 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2003 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 8 2017
allfields_unstemmed	10.3389/fimmu.2017.01861 doi (DE-627)DOAJ017241472 (DE-599)DOAJb3583889d85b40afbc7e15c730408b57 DE-627 ger DE-627 rakwb eng RC581-607 Martin Solders verfasserin aut Mucosal-Associated Invariant T Cells Display a Poor Reconstitution and Altered Phenotype after Allogeneic Hematopoietic Stem Cell Transplantation 2017 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Mucosal-associated invariant T (MAIT) cells are innate-like T cells which are important in the defense against certain bacteria and yeast. The reconstitution of MAIT cells after allogeneic hematopoietic stem cell transplantation (HSCT) is not known. We investigated MAIT cell phenotype and function in 17 patients devoid of relapse and severe graft-versus-host disease (GvHD) in paired samples collected 1–2, 3–6, 12, and 24 months after transplantation. Data were compared to 17 healthy controls (HC), as well as 22 patients with acute GvHD grade 2–3. The frequency of MAIT cells within CD3+ cells was approximately 10-fold lower than in HC and did not increase over the 2 years following HSCT. MAIT cells in HSCT patients displayed an elevated expression of CD69 and intracellular granzyme B and were predominantly composed of CD4/CD8 double-negative cells. The expression of PD-1 on MAIT cells was low and did not change during the observational time, whereas the CD3+CD161dim/negTCRVα7.2dim/neg cells (non-MAIT T cells) displayed a high expression early after HSCT that decreased to normal levels at 24 months. MAIT cells collected 2–6 months post-HSCT showed an impaired IFN-γ and perforin response after bacterial stimulation, but the response was restored at 24 months. Patients with acute GvHD had similar proportions of MAIT cells as patients with grade 0–1, but consisted mainly of CD8+ cells. Finally, MAIT cells were more sensitive to cyclosporine A and sirolimus than non-MAIT T cells. To conclude, MAIT cell reconstitution following HSCT is deficient compared to non-MAIT T cells and GvHD grade ≥2 is not correlated with MAIT cell frequency. MAIT cell functionality was impaired early after HSCT, but restored at 24 months post-HSCT. MAIT cells have an increased sensibility to common immunosuppressive drugs, which maybe could explain their hampered reconstitution after HSCT. allogeneic hematopoietic stem cell transplantation mucosal-associated invariant T cells immune reconstitution graft-versus-host disease sirolimus PD-1 Immunologic diseases. Allergy Tom Erkers verfasserin aut Laia Gorchs verfasserin aut Thomas Poiret verfasserin aut Mats Remberger verfasserin aut Mats Remberger verfasserin aut Isabelle Magalhaes verfasserin aut Helen Kaipe verfasserin aut Helen Kaipe verfasserin aut In Frontiers in Immunology Frontiers Media S.A., 2011 8(2017) (DE-627)657998354 (DE-600)2606827-8 16643224 nnns volume:8 year:2017 https://doi.org/10.3389/fimmu.2017.01861 kostenfrei https://doaj.org/article/b3583889d85b40afbc7e15c730408b57 kostenfrei http://journal.frontiersin.org/article/10.3389/fimmu.2017.01861/full kostenfrei https://doaj.org/toc/1664-3224 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2003 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 8 2017
allfieldsGer	10.3389/fimmu.2017.01861 doi (DE-627)DOAJ017241472 (DE-599)DOAJb3583889d85b40afbc7e15c730408b57 DE-627 ger DE-627 rakwb eng RC581-607 Martin Solders verfasserin aut Mucosal-Associated Invariant T Cells Display a Poor Reconstitution and Altered Phenotype after Allogeneic Hematopoietic Stem Cell Transplantation 2017 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Mucosal-associated invariant T (MAIT) cells are innate-like T cells which are important in the defense against certain bacteria and yeast. The reconstitution of MAIT cells after allogeneic hematopoietic stem cell transplantation (HSCT) is not known. We investigated MAIT cell phenotype and function in 17 patients devoid of relapse and severe graft-versus-host disease (GvHD) in paired samples collected 1–2, 3–6, 12, and 24 months after transplantation. Data were compared to 17 healthy controls (HC), as well as 22 patients with acute GvHD grade 2–3. The frequency of MAIT cells within CD3+ cells was approximately 10-fold lower than in HC and did not increase over the 2 years following HSCT. MAIT cells in HSCT patients displayed an elevated expression of CD69 and intracellular granzyme B and were predominantly composed of CD4/CD8 double-negative cells. The expression of PD-1 on MAIT cells was low and did not change during the observational time, whereas the CD3+CD161dim/negTCRVα7.2dim/neg cells (non-MAIT T cells) displayed a high expression early after HSCT that decreased to normal levels at 24 months. MAIT cells collected 2–6 months post-HSCT showed an impaired IFN-γ and perforin response after bacterial stimulation, but the response was restored at 24 months. Patients with acute GvHD had similar proportions of MAIT cells as patients with grade 0–1, but consisted mainly of CD8+ cells. Finally, MAIT cells were more sensitive to cyclosporine A and sirolimus than non-MAIT T cells. To conclude, MAIT cell reconstitution following HSCT is deficient compared to non-MAIT T cells and GvHD grade ≥2 is not correlated with MAIT cell frequency. MAIT cell functionality was impaired early after HSCT, but restored at 24 months post-HSCT. MAIT cells have an increased sensibility to common immunosuppressive drugs, which maybe could explain their hampered reconstitution after HSCT. allogeneic hematopoietic stem cell transplantation mucosal-associated invariant T cells immune reconstitution graft-versus-host disease sirolimus PD-1 Immunologic diseases. Allergy Tom Erkers verfasserin aut Laia Gorchs verfasserin aut Thomas Poiret verfasserin aut Mats Remberger verfasserin aut Mats Remberger verfasserin aut Isabelle Magalhaes verfasserin aut Helen Kaipe verfasserin aut Helen Kaipe verfasserin aut In Frontiers in Immunology Frontiers Media S.A., 2011 8(2017) (DE-627)657998354 (DE-600)2606827-8 16643224 nnns volume:8 year:2017 https://doi.org/10.3389/fimmu.2017.01861 kostenfrei https://doaj.org/article/b3583889d85b40afbc7e15c730408b57 kostenfrei http://journal.frontiersin.org/article/10.3389/fimmu.2017.01861/full kostenfrei https://doaj.org/toc/1664-3224 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2003 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 8 2017
allfieldsSound	10.3389/fimmu.2017.01861 doi (DE-627)DOAJ017241472 (DE-599)DOAJb3583889d85b40afbc7e15c730408b57 DE-627 ger DE-627 rakwb eng RC581-607 Martin Solders verfasserin aut Mucosal-Associated Invariant T Cells Display a Poor Reconstitution and Altered Phenotype after Allogeneic Hematopoietic Stem Cell Transplantation 2017 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Mucosal-associated invariant T (MAIT) cells are innate-like T cells which are important in the defense against certain bacteria and yeast. The reconstitution of MAIT cells after allogeneic hematopoietic stem cell transplantation (HSCT) is not known. We investigated MAIT cell phenotype and function in 17 patients devoid of relapse and severe graft-versus-host disease (GvHD) in paired samples collected 1–2, 3–6, 12, and 24 months after transplantation. Data were compared to 17 healthy controls (HC), as well as 22 patients with acute GvHD grade 2–3. The frequency of MAIT cells within CD3+ cells was approximately 10-fold lower than in HC and did not increase over the 2 years following HSCT. MAIT cells in HSCT patients displayed an elevated expression of CD69 and intracellular granzyme B and were predominantly composed of CD4/CD8 double-negative cells. The expression of PD-1 on MAIT cells was low and did not change during the observational time, whereas the CD3+CD161dim/negTCRVα7.2dim/neg cells (non-MAIT T cells) displayed a high expression early after HSCT that decreased to normal levels at 24 months. MAIT cells collected 2–6 months post-HSCT showed an impaired IFN-γ and perforin response after bacterial stimulation, but the response was restored at 24 months. Patients with acute GvHD had similar proportions of MAIT cells as patients with grade 0–1, but consisted mainly of CD8+ cells. Finally, MAIT cells were more sensitive to cyclosporine A and sirolimus than non-MAIT T cells. To conclude, MAIT cell reconstitution following HSCT is deficient compared to non-MAIT T cells and GvHD grade ≥2 is not correlated with MAIT cell frequency. MAIT cell functionality was impaired early after HSCT, but restored at 24 months post-HSCT. MAIT cells have an increased sensibility to common immunosuppressive drugs, which maybe could explain their hampered reconstitution after HSCT. allogeneic hematopoietic stem cell transplantation mucosal-associated invariant T cells immune reconstitution graft-versus-host disease sirolimus PD-1 Immunologic diseases. Allergy Tom Erkers verfasserin aut Laia Gorchs verfasserin aut Thomas Poiret verfasserin aut Mats Remberger verfasserin aut Mats Remberger verfasserin aut Isabelle Magalhaes verfasserin aut Helen Kaipe verfasserin aut Helen Kaipe verfasserin aut In Frontiers in Immunology Frontiers Media S.A., 2011 8(2017) (DE-627)657998354 (DE-600)2606827-8 16643224 nnns volume:8 year:2017 https://doi.org/10.3389/fimmu.2017.01861 kostenfrei https://doaj.org/article/b3583889d85b40afbc7e15c730408b57 kostenfrei http://journal.frontiersin.org/article/10.3389/fimmu.2017.01861/full kostenfrei https://doaj.org/toc/1664-3224 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2003 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 8 2017
language	English
source	In Frontiers in Immunology 8(2017) volume:8 year:2017
sourceStr	In Frontiers in Immunology 8(2017) volume:8 year:2017
format_phy_str_mv	Article
institution	findex.gbv.de
topic_facet	allogeneic hematopoietic stem cell transplantation mucosal-associated invariant T cells immune reconstitution graft-versus-host disease sirolimus PD-1 Immunologic diseases. Allergy
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container_title	Frontiers in Immunology
authorswithroles_txt_mv	Martin Solders @@aut@@ Tom Erkers @@aut@@ Laia Gorchs @@aut@@ Thomas Poiret @@aut@@ Mats Remberger @@aut@@ Isabelle Magalhaes @@aut@@ Helen Kaipe @@aut@@
publishDateDaySort_date	2017-01-01T00:00:00Z
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id	DOAJ017241472
language_de	englisch
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topic_title	RC581-607 Mucosal-Associated Invariant T Cells Display a Poor Reconstitution and Altered Phenotype after Allogeneic Hematopoietic Stem Cell Transplantation allogeneic hematopoietic stem cell transplantation mucosal-associated invariant T cells immune reconstitution graft-versus-host disease sirolimus PD-1
topic	misc RC581-607 misc allogeneic hematopoietic stem cell transplantation misc mucosal-associated invariant T cells misc immune reconstitution misc graft-versus-host disease misc sirolimus misc PD-1 misc Immunologic diseases. Allergy
topic_unstemmed	misc RC581-607 misc allogeneic hematopoietic stem cell transplantation misc mucosal-associated invariant T cells misc immune reconstitution misc graft-versus-host disease misc sirolimus misc PD-1 misc Immunologic diseases. Allergy
topic_browse	misc RC581-607 misc allogeneic hematopoietic stem cell transplantation misc mucosal-associated invariant T cells misc immune reconstitution misc graft-versus-host disease misc sirolimus misc PD-1 misc Immunologic diseases. Allergy
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hierarchy_parent_title	Frontiers in Immunology
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title	Mucosal-Associated Invariant T Cells Display a Poor Reconstitution and Altered Phenotype after Allogeneic Hematopoietic Stem Cell Transplantation
ctrlnum	(DE-627)DOAJ017241472 (DE-599)DOAJb3583889d85b40afbc7e15c730408b57
title_full	Mucosal-Associated Invariant T Cells Display a Poor Reconstitution and Altered Phenotype after Allogeneic Hematopoietic Stem Cell Transplantation
author_sort	Martin Solders
journal	Frontiers in Immunology
journalStr	Frontiers in Immunology
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author_browse	Martin Solders Tom Erkers Laia Gorchs Thomas Poiret Mats Remberger Isabelle Magalhaes Helen Kaipe
container_volume	8
class	RC581-607
format_se	Elektronische Aufsätze
author-letter	Martin Solders
doi_str_mv	10.3389/fimmu.2017.01861
author2-role	verfasserin
title_sort	mucosal-associated invariant t cells display a poor reconstitution and altered phenotype after allogeneic hematopoietic stem cell transplantation
callnumber	RC581-607
title_auth	Mucosal-Associated Invariant T Cells Display a Poor Reconstitution and Altered Phenotype after Allogeneic Hematopoietic Stem Cell Transplantation
abstract	Mucosal-associated invariant T (MAIT) cells are innate-like T cells which are important in the defense against certain bacteria and yeast. The reconstitution of MAIT cells after allogeneic hematopoietic stem cell transplantation (HSCT) is not known. We investigated MAIT cell phenotype and function in 17 patients devoid of relapse and severe graft-versus-host disease (GvHD) in paired samples collected 1–2, 3–6, 12, and 24 months after transplantation. Data were compared to 17 healthy controls (HC), as well as 22 patients with acute GvHD grade 2–3. The frequency of MAIT cells within CD3+ cells was approximately 10-fold lower than in HC and did not increase over the 2 years following HSCT. MAIT cells in HSCT patients displayed an elevated expression of CD69 and intracellular granzyme B and were predominantly composed of CD4/CD8 double-negative cells. The expression of PD-1 on MAIT cells was low and did not change during the observational time, whereas the CD3+CD161dim/negTCRVα7.2dim/neg cells (non-MAIT T cells) displayed a high expression early after HSCT that decreased to normal levels at 24 months. MAIT cells collected 2–6 months post-HSCT showed an impaired IFN-γ and perforin response after bacterial stimulation, but the response was restored at 24 months. Patients with acute GvHD had similar proportions of MAIT cells as patients with grade 0–1, but consisted mainly of CD8+ cells. Finally, MAIT cells were more sensitive to cyclosporine A and sirolimus than non-MAIT T cells. To conclude, MAIT cell reconstitution following HSCT is deficient compared to non-MAIT T cells and GvHD grade ≥2 is not correlated with MAIT cell frequency. MAIT cell functionality was impaired early after HSCT, but restored at 24 months post-HSCT. MAIT cells have an increased sensibility to common immunosuppressive drugs, which maybe could explain their hampered reconstitution after HSCT.
abstractGer	Mucosal-associated invariant T (MAIT) cells are innate-like T cells which are important in the defense against certain bacteria and yeast. The reconstitution of MAIT cells after allogeneic hematopoietic stem cell transplantation (HSCT) is not known. We investigated MAIT cell phenotype and function in 17 patients devoid of relapse and severe graft-versus-host disease (GvHD) in paired samples collected 1–2, 3–6, 12, and 24 months after transplantation. Data were compared to 17 healthy controls (HC), as well as 22 patients with acute GvHD grade 2–3. The frequency of MAIT cells within CD3+ cells was approximately 10-fold lower than in HC and did not increase over the 2 years following HSCT. MAIT cells in HSCT patients displayed an elevated expression of CD69 and intracellular granzyme B and were predominantly composed of CD4/CD8 double-negative cells. The expression of PD-1 on MAIT cells was low and did not change during the observational time, whereas the CD3+CD161dim/negTCRVα7.2dim/neg cells (non-MAIT T cells) displayed a high expression early after HSCT that decreased to normal levels at 24 months. MAIT cells collected 2–6 months post-HSCT showed an impaired IFN-γ and perforin response after bacterial stimulation, but the response was restored at 24 months. Patients with acute GvHD had similar proportions of MAIT cells as patients with grade 0–1, but consisted mainly of CD8+ cells. Finally, MAIT cells were more sensitive to cyclosporine A and sirolimus than non-MAIT T cells. To conclude, MAIT cell reconstitution following HSCT is deficient compared to non-MAIT T cells and GvHD grade ≥2 is not correlated with MAIT cell frequency. MAIT cell functionality was impaired early after HSCT, but restored at 24 months post-HSCT. MAIT cells have an increased sensibility to common immunosuppressive drugs, which maybe could explain their hampered reconstitution after HSCT.
abstract_unstemmed	Mucosal-associated invariant T (MAIT) cells are innate-like T cells which are important in the defense against certain bacteria and yeast. The reconstitution of MAIT cells after allogeneic hematopoietic stem cell transplantation (HSCT) is not known. We investigated MAIT cell phenotype and function in 17 patients devoid of relapse and severe graft-versus-host disease (GvHD) in paired samples collected 1–2, 3–6, 12, and 24 months after transplantation. Data were compared to 17 healthy controls (HC), as well as 22 patients with acute GvHD grade 2–3. The frequency of MAIT cells within CD3+ cells was approximately 10-fold lower than in HC and did not increase over the 2 years following HSCT. MAIT cells in HSCT patients displayed an elevated expression of CD69 and intracellular granzyme B and were predominantly composed of CD4/CD8 double-negative cells. The expression of PD-1 on MAIT cells was low and did not change during the observational time, whereas the CD3+CD161dim/negTCRVα7.2dim/neg cells (non-MAIT T cells) displayed a high expression early after HSCT that decreased to normal levels at 24 months. MAIT cells collected 2–6 months post-HSCT showed an impaired IFN-γ and perforin response after bacterial stimulation, but the response was restored at 24 months. Patients with acute GvHD had similar proportions of MAIT cells as patients with grade 0–1, but consisted mainly of CD8+ cells. Finally, MAIT cells were more sensitive to cyclosporine A and sirolimus than non-MAIT T cells. To conclude, MAIT cell reconstitution following HSCT is deficient compared to non-MAIT T cells and GvHD grade ≥2 is not correlated with MAIT cell frequency. MAIT cell functionality was impaired early after HSCT, but restored at 24 months post-HSCT. MAIT cells have an increased sensibility to common immunosuppressive drugs, which maybe could explain their hampered reconstitution after HSCT.
collection_details	GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2003 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700
title_short	Mucosal-Associated Invariant T Cells Display a Poor Reconstitution and Altered Phenotype after Allogeneic Hematopoietic Stem Cell Transplantation
url	https://doi.org/10.3389/fimmu.2017.01861 https://doaj.org/article/b3583889d85b40afbc7e15c730408b57 http://journal.frontiersin.org/article/10.3389/fimmu.2017.01861/full https://doaj.org/toc/1664-3224
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author2	Tom Erkers Laia Gorchs Thomas Poiret Mats Remberger Isabelle Magalhaes Helen Kaipe
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up_date	2024-07-04T00:51:10.110Z
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