Recent thymic emigrants produce antimicrobial IL-8, express complement receptors and are precursors of a tissue-homing Th8 lineage of memory cells

نویسندگان

  • Marcin L Pekalski
  • Arcadio Rubio García
  • Ricardo C Ferreira
  • Daniel B Rainbow
  • Deborah J Smyth
  • Meghavi Mashar
  • Jane Brady
  • Natalia Savinykh
  • Xaquin Castro Dopico
  • Sumiyya Mahmood
  • Simon Duley
  • Helen E Stevens
  • Neil M Walker
  • Antony J Cutler
  • Frank Waldron-Lynch
  • David B Dunger
  • Claire Shannon-Lowe
  • Alasdair J Coles
  • Joanne L Jones
  • Chris Wallace
  • John A Todd
  • Linda S Wicker
چکیده

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منابع مشابه

Neonatal and adult recent thymic emigrants produce IL-8 and express complement receptors CR1 and CR2

The maintenance of peripheral naive T lymphocytes in humans is dependent on their homeostatic division, not continuing emigration from the thymus, which undergoes involution with age. However, postthymic maintenance of naive T cells is still poorly understood. Previously we reported that recent thymic emigrants (RTEs) are contained in CD31+CD25- naive T cells as defined by their levels of signa...

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FoxP3+ T cells undergo conventional first switch to lymphoid tissue homing receptors in thymus but accelerated second switch to nonlymphoid tissue homing receptors in secondary lymphoid tissues.

Forkhead box P3 (FoxP3)-positive T cells are a specialized T cell subset for immune regulation and tolerance. We investigated the trafficking receptor switches of FoxP3(+) T cells in thymus and secondary lymphoid tissues and the functional consequences of these switches in migration. We found that FoxP3(+) T cells undergo two discrete developmental switches in trafficking receptors to migrate f...

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CD26+ Cord Blood Mononuclear Cells Significantly Produce B, T, and NK Cells

Background: Umbilical cord blood (UCB) is an alternative source of hematopoietic stem cell transplantation (HSCT), used in Leukemia treatment. CD26+ cells, a fraction of CD34 positive cells, are a major population of UCB cells which negatively regulate the in vivo homing and engraftment of HSCs. CD26 is highly expressed in various cells such as HSCs, immune cells, fibroblasts, and epithelial ce...

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Recent thymic emigrants are the preferential precursors of regulatory T cells differentiated in the periphery.

Most Forkhead box P3(+) (Foxp3(+)) CD4 regulatory T cell (Treg) precursors are newly formed thymocytes that acquire Foxp3 expression on antigen encounter in the thymus. Differentiation of Treg, however, can also occur in the periphery. What limits this second layer of self- and nonself-reactive Treg production in physiological conditions remains to be understood. In this work, we tested the hyp...

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T-lineage cells require the thymus but not VDJ recombination to produce IL-17A and regulate granulopoiesis in vivo.

IL-17A and IL-17F regulate granulopoiesis and are produced by memory T cells. Rag1(-/-) recombinase-activating gene-deficient mice cannot produce mature T cells but maintain normal neutrophil counts. Athymic nude mice are neutropenic or have near-normal neutrophil counts, depending on the prevailing intestinal flora, and do not produce IL-17A. By contrast, thymi from Rag1(-/-) mice contain as m...

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تاریخ انتشار 2016