Talk:Cardiovascular System - Blood Development: Difference between revisions
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==2010== | |||
===Fetal and adult hematopoietic stem cells give rise to distinct T cell lineages in humans=== | |||
Science. 2010 Dec 17;330(6011):1695-9. | |||
Mold JE, Venkatasubrahmanyam S, Burt TD, Michaëlsson J, Rivera JM, Galkina SA, Weinberg K, Stoddart CA, McCune JM. | |||
Division of Experimental Medicine, Department of Medicine, University of California, San Francisco, CA 94143-1234, USA. | |||
Erratum in: | |||
Science. 2011 Feb 4;331(6017):534. | |||
Comment in: | |||
Science. 2010 Dec 17;330(6011):1635-6. | |||
Abstract | |||
Although the mammalian immune system is generally thought to develop in a linear fashion, findings in avian and murine species argue instead for the developmentally ordered appearance (or "layering") of distinct hematopoietic stem cells (HSCs) that give rise to distinct lymphocyte lineages at different stages of development. Here we provide evidence of an analogous layered immune system in humans. Our results suggest that fetal and adult T cells are distinct populations that arise from different populations of HSCs that are present at different stages of development. We also provide evidence that the fetal T cell lineage is biased toward immune tolerance. These observations offer a mechanistic explanation for the tolerogenic properties of the developing fetus and for variable degrees of immune responsiveness at birth. | |||
PMID: 21164017 | |||
http://www.ncbi.nlm.nih.gov/pubmed/21164017 | |||
Revision as of 09:05, 27 February 2011
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Cite this page: Hill, M.A. (2024, April 18) Embryology Cardiovascular System - Blood Development. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/Talk:Cardiovascular_System_-_Blood_Development |
2010
Fetal and adult hematopoietic stem cells give rise to distinct T cell lineages in humans
Science. 2010 Dec 17;330(6011):1695-9.
Mold JE, Venkatasubrahmanyam S, Burt TD, Michaëlsson J, Rivera JM, Galkina SA, Weinberg K, Stoddart CA, McCune JM.
Division of Experimental Medicine, Department of Medicine, University of California, San Francisco, CA 94143-1234, USA. Erratum in:
Science. 2011 Feb 4;331(6017):534. Comment in:
Science. 2010 Dec 17;330(6011):1635-6.
Abstract
Although the mammalian immune system is generally thought to develop in a linear fashion, findings in avian and murine species argue instead for the developmentally ordered appearance (or "layering") of distinct hematopoietic stem cells (HSCs) that give rise to distinct lymphocyte lineages at different stages of development. Here we provide evidence of an analogous layered immune system in humans. Our results suggest that fetal and adult T cells are distinct populations that arise from different populations of HSCs that are present at different stages of development. We also provide evidence that the fetal T cell lineage is biased toward immune tolerance. These observations offer a mechanistic explanation for the tolerogenic properties of the developing fetus and for variable degrees of immune responsiveness at birth.
PMID: 21164017 http://www.ncbi.nlm.nih.gov/pubmed/21164017
