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Myeloid and lymphoid contribution to non-haematopoietic lineages through irradiation-induced heterotypic cell fusion
Lund University, Sweden.ORCID iD: 0000-0002-3576-2393
Lund Strategic Research Center for Stem Cell Biology and Cell Therapy, Lund University, Sweden.
Institute of Physiology I, Life & Brain Center, University of Bonn, Germany.
Lund Strategic Research Center for Stem Cell Biology and Cell Therapy, Lund University, Sweden.
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2008 (English)In: Nature Cell Biology, ISSN 1465-7392, E-ISSN 1476-4679, Vol. 10, no 5, p. 584-92Article in journal (Refereed) Published
Abstract [en]

Recent studies have suggested that regeneration of non-haematopoietic cell lineages can occur through heterotypic cell fusion with haematopoietic cells of the myeloid lineage. Here we show that lymphocytes also form heterotypic-fusion hybrids with cardiomyocytes, skeletal muscle, hepatocytes and Purkinje neurons. However, through lineage fate-mapping we demonstrate that such in vivo fusion of lymphoid and myeloid blood cells does not occur to an appreciable extent in steady-state adult tissues or during normal development. Rather, fusion of blood cells with different non-haematopoietic cell types is induced by organ-specific injuries or whole-body irradiation, which has been used in previous studies to condition recipients of bone marrow transplants. Our findings demonstrate that blood cells of the lymphoid and myeloid lineages contribute to various non-haematopoietic tissues by forming rare fusion hybrids, but almost exclusively in response to injuries or inflammation.

Place, publisher, year, edition, pages
London: Nature Publishing Group, 2008. Vol. 10, no 5, p. 584-92
National Category
Medical and Health Sciences
Identifiers
URN: urn:nbn:se:hh:diva-15170DOI: 10.1038/ncb1721ISI: 000255502400015PubMedID: 18425115Scopus ID: 2-s2.0-43049091554OAI: oai:DiVA.org:hh-15170DiVA, id: diva2:419607
Available from: 2011-05-27 Created: 2011-05-27 Last updated: 2017-12-11Bibliographically approved

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