MIG (CXCL9) is a more sensitive measure than IFN-gamma of vaccine induced T-cell responses in volunteers receiving investigated malaria vaccines.

For many years the IFN-gamma ex vivo ELISPOT has been a major assay for assessing human T-cell responses generated by malaria vaccines. The ELISPOT assay is a sensitive assay, but an imperfect correlate of protection against malaria. Monokine induced by gamma (MIG), or CXCL9, is a chemokine induced...

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Main Authors: Berthoud, T, Dunachie, S, Todryk, S, Hill, A, Fletcher, H
Format: Journal article
Language:English
Published: 2009
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author Berthoud, T
Dunachie, S
Todryk, S
Hill, A
Fletcher, H
author_facet Berthoud, T
Dunachie, S
Todryk, S
Hill, A
Fletcher, H
author_sort Berthoud, T
collection OXFORD
description For many years the IFN-gamma ex vivo ELISPOT has been a major assay for assessing human T-cell responses generated by malaria vaccines. The ELISPOT assay is a sensitive assay, but an imperfect correlate of protection against malaria. Monokine induced by gamma (MIG), or CXCL9, is a chemokine induced by IFN-gamma and has the potential to provide amplification of the IFN-gamma signal. MIG secretion could provide a measure of bio-active IFN-gamma and a functional IFN-gamma signalling pathway. We report that detecting MIG by flow cytometry and by RT-PCR can be more sensitive than the detection of IFN-gamma using these methods. We also find that there is little inter-individual variability in MIG secretion when detected by flow cytometry and that the MIG assay may be used to estimate the amount of bio-active IFN-gamma present. Measurement of MIG alongside IFN-gamma may provide a fuller picture of Th1 type responses post-vaccination.
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spelling oxford-uuid:2d4bfa85-161d-4d82-ae12-8df797c51d8e2022-03-26T12:42:06ZMIG (CXCL9) is a more sensitive measure than IFN-gamma of vaccine induced T-cell responses in volunteers receiving investigated malaria vaccines.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:2d4bfa85-161d-4d82-ae12-8df797c51d8eEnglishSymplectic Elements at Oxford2009Berthoud, TDunachie, STodryk, SHill, AFletcher, HFor many years the IFN-gamma ex vivo ELISPOT has been a major assay for assessing human T-cell responses generated by malaria vaccines. The ELISPOT assay is a sensitive assay, but an imperfect correlate of protection against malaria. Monokine induced by gamma (MIG), or CXCL9, is a chemokine induced by IFN-gamma and has the potential to provide amplification of the IFN-gamma signal. MIG secretion could provide a measure of bio-active IFN-gamma and a functional IFN-gamma signalling pathway. We report that detecting MIG by flow cytometry and by RT-PCR can be more sensitive than the detection of IFN-gamma using these methods. We also find that there is little inter-individual variability in MIG secretion when detected by flow cytometry and that the MIG assay may be used to estimate the amount of bio-active IFN-gamma present. Measurement of MIG alongside IFN-gamma may provide a fuller picture of Th1 type responses post-vaccination.
spellingShingle Berthoud, T
Dunachie, S
Todryk, S
Hill, A
Fletcher, H
MIG (CXCL9) is a more sensitive measure than IFN-gamma of vaccine induced T-cell responses in volunteers receiving investigated malaria vaccines.
title MIG (CXCL9) is a more sensitive measure than IFN-gamma of vaccine induced T-cell responses in volunteers receiving investigated malaria vaccines.
title_full MIG (CXCL9) is a more sensitive measure than IFN-gamma of vaccine induced T-cell responses in volunteers receiving investigated malaria vaccines.
title_fullStr MIG (CXCL9) is a more sensitive measure than IFN-gamma of vaccine induced T-cell responses in volunteers receiving investigated malaria vaccines.
title_full_unstemmed MIG (CXCL9) is a more sensitive measure than IFN-gamma of vaccine induced T-cell responses in volunteers receiving investigated malaria vaccines.
title_short MIG (CXCL9) is a more sensitive measure than IFN-gamma of vaccine induced T-cell responses in volunteers receiving investigated malaria vaccines.
title_sort mig cxcl9 is a more sensitive measure than ifn gamma of vaccine induced t cell responses in volunteers receiving investigated malaria vaccines
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