Initial seeding of the embryonic thymus by immune-restricted lympho-myeloid progenitors

The final stages of restriction to the T cell lineage occur in the thymus after the entry of thymus-seeding progenitors (TSPs). The identity and lineage potential of TSPs remains unclear. Because the first embryonic TSPs enter a non-vascularized thymic rudiment, we were able to directly image and es...

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Main Authors: Luis, T, Luc, S, Mizukami, T, Boukarabila, H, Thongjuea, S, Woll, P, Azzoni, E, Giustacchini, A, Lutteropp, M, Bouriez-Jones, T, Vaidya, H, Mead, A, Atkinson, D, Böiers, C, Carrelha, J, Macaulay, I, Patient, R, Geissmann, F, Nerlov, C, Sandberg, R, De Bruijn, M, Blackburn, C, Godin, I, Jacobsen, S
Format: Journal article
Language:English
Published: Macmillan Publishers 2016
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author Luis, T
Luc, S
Mizukami, T
Boukarabila, H
Thongjuea, S
Woll, P
Azzoni, E
Giustacchini, A
Lutteropp, M
Bouriez-Jones, T
Vaidya, H
Mead, A
Atkinson, D
Böiers, C
Carrelha, J
Macaulay, I
Patient, R
Geissmann, F
Nerlov, C
Sandberg, R
De Bruijn, M
Blackburn, C
Godin, I
Jacobsen, S
author_facet Luis, T
Luc, S
Mizukami, T
Boukarabila, H
Thongjuea, S
Woll, P
Azzoni, E
Giustacchini, A
Lutteropp, M
Bouriez-Jones, T
Vaidya, H
Mead, A
Atkinson, D
Böiers, C
Carrelha, J
Macaulay, I
Patient, R
Geissmann, F
Nerlov, C
Sandberg, R
De Bruijn, M
Blackburn, C
Godin, I
Jacobsen, S
author_sort Luis, T
collection OXFORD
description The final stages of restriction to the T cell lineage occur in the thymus after the entry of thymus-seeding progenitors (TSPs). The identity and lineage potential of TSPs remains unclear. Because the first embryonic TSPs enter a non-vascularized thymic rudiment, we were able to directly image and establish the functional and molecular properties of embryonic thymopoiesis-initiating progenitors (T-IPs) before their entry into the thymus and activation of Notch signaling. T-IPs did not include multipotent stem cells or molecular evidence of T cell-restricted progenitors. Instead, single-cell molecular and functional analysis demonstrated that most fetal T-IPs expressed genes of and had the potential to develop into lymphoid as well as myeloid components of the immune system. Moreover, studies of embryos deficient in the transcriptional regulator RBPJ demonstrated that canonical Notch signaling was not involved in pre-thymic restriction to the T cell lineage or the migration of T-IPs.
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spelling oxford-uuid:0d818858-7006-49fb-8072-efd80315ee202022-03-26T09:40:59ZInitial seeding of the embryonic thymus by immune-restricted lympho-myeloid progenitorsJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:0d818858-7006-49fb-8072-efd80315ee20EnglishSymplectic Elements at OxfordMacmillan Publishers2016Luis, TLuc, SMizukami, TBoukarabila, HThongjuea, SWoll, PAzzoni, EGiustacchini, ALutteropp, MBouriez-Jones, TVaidya, HMead, AAtkinson, DBöiers, CCarrelha, JMacaulay, IPatient, RGeissmann, FNerlov, CSandberg, RDe Bruijn, MBlackburn, CGodin, IJacobsen, SThe final stages of restriction to the T cell lineage occur in the thymus after the entry of thymus-seeding progenitors (TSPs). The identity and lineage potential of TSPs remains unclear. Because the first embryonic TSPs enter a non-vascularized thymic rudiment, we were able to directly image and establish the functional and molecular properties of embryonic thymopoiesis-initiating progenitors (T-IPs) before their entry into the thymus and activation of Notch signaling. T-IPs did not include multipotent stem cells or molecular evidence of T cell-restricted progenitors. Instead, single-cell molecular and functional analysis demonstrated that most fetal T-IPs expressed genes of and had the potential to develop into lymphoid as well as myeloid components of the immune system. Moreover, studies of embryos deficient in the transcriptional regulator RBPJ demonstrated that canonical Notch signaling was not involved in pre-thymic restriction to the T cell lineage or the migration of T-IPs.
spellingShingle Luis, T
Luc, S
Mizukami, T
Boukarabila, H
Thongjuea, S
Woll, P
Azzoni, E
Giustacchini, A
Lutteropp, M
Bouriez-Jones, T
Vaidya, H
Mead, A
Atkinson, D
Böiers, C
Carrelha, J
Macaulay, I
Patient, R
Geissmann, F
Nerlov, C
Sandberg, R
De Bruijn, M
Blackburn, C
Godin, I
Jacobsen, S
Initial seeding of the embryonic thymus by immune-restricted lympho-myeloid progenitors
title Initial seeding of the embryonic thymus by immune-restricted lympho-myeloid progenitors
title_full Initial seeding of the embryonic thymus by immune-restricted lympho-myeloid progenitors
title_fullStr Initial seeding of the embryonic thymus by immune-restricted lympho-myeloid progenitors
title_full_unstemmed Initial seeding of the embryonic thymus by immune-restricted lympho-myeloid progenitors
title_short Initial seeding of the embryonic thymus by immune-restricted lympho-myeloid progenitors
title_sort initial seeding of the embryonic thymus by immune restricted lympho myeloid progenitors
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