PMID- 25744551 OWN - NLM STAT- MEDLINE DCOM- 20160617 LR - 20181113 IS - 1440-1711 (Electronic) IS - 0818-9641 (Print) IS - 0818-9641 (Linking) VI - 93 IP - 8 DP - 2015 Sep TI - Conserved and divergent aspects of human T-cell development and migration in humanized mice. PG - 716-26 LID - 10.1038/icb.2015.38 [doi] AB - Humanized mice represent an important model to study the development and function of the human immune system. While it is known that mouse thymic stromal cells can support human T-cell development, the extent of interspecies cross-talk and the degree to which these systems recapitulate normal human T-cell development remain unclear. To address these questions, we compared conventional and non-conventional T-cell development in a neonatal chimera humanized mouse model with that seen in human fetal and neonatal thymus samples, and also examined the impact of a human HLA-A2 transgene expressed by the mouse stroma. Given that dynamic migration and cell-cell interactions are essential for T-cell differentiation, we also studied the intrathymic migration pattern of human thymocytes developing in a murine thymic environment. We found that both conventional T-cell development and intra-thymic migration patterns in humanized mice closely resemble human thymopoiesis. Additionally, we show that developing human thymocytes engage in short, serial interactions with other human hematopoietic-derived cells. However, non-conventional T-cell differentiation in humanized mice differed from both fetal and neonatal human thymopoiesis, including a marked deficiency of Foxp3(+) T-cell development. These data suggest that although the murine thymic microenvironment can support a number of aspects of human T-cell development, important differences remain, and additional human-specific factors may be required. FAU - Halkias, Joanna AU - Halkias J AD - Division of Immunology and Pathogenesis, Department of Molecular and Cell Biology, UC Berkeley, Berkeley, CA, USA. AD - Division of Neonatology, Department of Pediatrics, UCSF Benioff Children's Hospital Oakland, Oakland, CA, USA. FAU - Yen, Bonnie AU - Yen B AD - Division of Immunology and Pathogenesis, Department of Molecular and Cell Biology, UC Berkeley, Berkeley, CA, USA. FAU - Taylor, Kayleigh T AU - Taylor KT AD - Division of Immunology and Pathogenesis, Department of Molecular and Cell Biology, UC Berkeley, Berkeley, CA, USA. FAU - Reinhartz, Olaf AU - Reinhartz O AD - Division of Cardiothoracic Surgery, Department of Pediatrics, UCSF Benioff Children's Hospital Oakland, Oakland, CA, USA. AD - Division of Pediatric Cardiac Surgery, Department of Cardiothoracic Surgery, Lucile Packard Children's Hospital/Stanford University, Palo Alto, CA, USA. FAU - Winoto, Astar AU - Winoto A AD - Division of Immunology and Pathogenesis, Department of Molecular and Cell Biology, UC Berkeley, Berkeley, CA, USA. FAU - Robey, Ellen A AU - Robey EA AD - Division of Immunology and Pathogenesis, Department of Molecular and Cell Biology, UC Berkeley, Berkeley, CA, USA. FAU - Melichar, Heather J AU - Melichar HJ AD - Division of Immunology and Pathogenesis, Department of Molecular and Cell Biology, UC Berkeley, Berkeley, CA, USA. LA - eng GR - R01 AI064227/AI/NIAID NIH HHS/United States PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20150306 PL - United States TA - Immunol Cell Biol JT - Immunology and cell biology JID - 8706300 RN - 0 (Biomarkers) RN - 0 (HLA-A2 Antigen) SB - IM MH - Animals MH - Biomarkers MH - Cell Communication MH - *Cell Differentiation MH - *Cell Movement MH - Cellular Microenvironment MH - Gene Expression MH - Genes, Reporter MH - HLA-A2 Antigen/genetics/immunology/metabolism MH - Humans MH - Immune System/cytology/physiology MH - Lymphopoiesis MH - Mice MH - Mice, Transgenic MH - Models, Animal MH - Organogenesis MH - Phenotype MH - T-Lymphocyte Subsets/cytology/physiology MH - T-Lymphocytes/*cytology/*physiology MH - Thymocytes/cytology/physiology MH - Thymus Gland/cytology/embryology/physiology PMC - PMC4575952 EDAT- 2015/03/07 06:00 MHDA- 2016/06/18 06:00 PMCR- 2015/09/21 CRDT- 2015/03/07 06:00 PHST- 2014/10/06 00:00 [received] PHST- 2015/02/09 00:00 [revised] PHST- 2015/02/09 00:00 [accepted] PHST- 2015/03/07 06:00 [entrez] PHST- 2015/03/07 06:00 [pubmed] PHST- 2016/06/18 06:00 [medline] PHST- 2015/09/21 00:00 [pmc-release] AID - icb201538 [pii] AID - 10.1038/icb.2015.38 [doi] PST - ppublish SO - Immunol Cell Biol. 2015 Sep;93(8):716-26. doi: 10.1038/icb.2015.38. Epub 2015 Mar 6.