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Altered B-lymphopoi...
Altered B-lymphopoiesis in mice with deregulated thrombopoietin signaling
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Au, A. E. (author)
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Lebois, M. (author)
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Sim, S. A. (author)
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Cannon, P. (author)
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Corbin, J. (author)
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Gangatirkar, P. (author)
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Hyland, C. D. (author)
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Moujalled, D. (author)
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- Rutgersson, Angelika (author)
- Gothenburg University,Göteborgs universitet,Institutionen för neurovetenskap och fysiologi, sektionen för farmakologi,Institute of Neuroscience and Physiology, Department of Pharmacology
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- Yassinson, Fatme (author)
- Gothenburg University,Göteborgs universitet,Institutionen för neurovetenskap och fysiologi, sektionen för farmakologi,Institute of Neuroscience and Physiology, Department of Pharmacology
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Kile, B. T. (author)
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Mason, K. D. (author)
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Ng, A. P. (author)
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Alexander, W. S. (author)
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Josefsson, E. C. (author)
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(creator_code:org_t)
- 2017-11-02
- 2017
- English.
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In: Scientific Reports. - : Springer Science and Business Media LLC. - 2045-2322. ; 7:1
- Related links:
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https://www.nature.c...
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https://gup.ub.gu.se...
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https://doi.org/10.1...
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Abstract
Subject headings
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- Thrombopoietin (TPO) is the master cytokine regulator of megakaryopoiesis. In addition to regulation of megakaryocyte and platelet number, TPO is important for maintaining proper hematopoietic stem cell (HSC) function. It was previously shown that a number of lymphoid genes were upregulated in HSCs from Tpo(-/-)mice. We investigated if absent or enhanced TPO signaling would influence normal B-lymphopoiesis. Absent TPO signaling in Mpl(-/-)mice led to enrichment of a common lymphoid progenitor (CLP) signature in multipotential lineage-negative Sca-1(+)c-Kit(+) (LSK) cells and an increase in CLP formation. Moreover, Mpl(-/-)mice exhibited increased numbers of PreB2 and immature B-cells in bone marrow and spleen, with an increased proportion of B-lymphoid cells in the G1 phase of the cell cycle. Conversely, elevated TPO signaling in Tpo(Tg) mice was associated with reduced B-lymphopoiesis. Although at steady state, peripheral blood lymphocyte counts were normal in both models, Mpl(-/-)E mu-myc mice showed an enhanced preneoplastic phase with increased numbers of splenic PreB2 and immature B-cells, a reduced quiescent fraction, and augmented blood lymphocyte counts. Thus, although Mpl is not expressed on lymphoid cells, TPO signaling may indirectly influence B-lymphopoiesis and the preneoplastic state in Myc-driven B-cell lymphomagenesis by lineage priming in multipotential progenitor cells.
Subject headings
- NATURVETENSKAP -- Biologi -- Cellbiologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Cell Biology (hsv//eng)
- MEDICIN OCH HÄLSOVETENSKAP -- Medicinska och farmaceutiska grundvetenskaper -- Cell- och molekylärbiologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Basic Medicine -- Cell and Molecular Biology (hsv//eng)
Keyword
- bone-marrow microenvironment
- hematopoietic stem-cells
- c-mpl
- multipotent progenitors
- transgenic mice
- receptor mpl
- platelets
- expression
- myc
- deficiencies
- Science & Technology - Other Topics
- ates of america
- v107
- p21689
Publication and Content Type
- ref (subject category)
- art (subject category)
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To the university's database
- By the author/editor
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Au, A. E.
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Lebois, M.
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Sim, S. A.
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Cannon, P.
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Corbin, J.
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Gangatirkar, P.
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show more...
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Hyland, C. D.
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Moujalled, D.
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Rutgersson, Ange ...
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Yassinson, Fatme
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Kile, B. T.
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Mason, K. D.
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Ng, A. P.
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Alexander, W. S.
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Josefsson, E. C.
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show less...
- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Biological Scien ...
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and Cell Biology
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- MEDICAL AND HEALTH SCIENCES
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MEDICAL AND HEAL ...
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and Basic Medicine
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and Cell and Molecul ...
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Scientific Repor ...
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University of Gothenburg