Humanized mice efficiently engrafted with fetal hepatoblasts and syngeneic immune cells develop human monocytes and NK cells

Eva K. Billerbeck, Michiel C. Mommersteeg, Amir Shlomai, Jing W. Xiao, Linda Andrus, Ankit Bhatta, Koen Vercauteren, Eleftherios Michailidis, Marcus Dorner, Anuradha Krishnan, Michael R. Charlton, Luis Chiriboga, Charles M. Rice, Ype P. de Jong

Research output: Contribution to journalArticle

28 Citations (Scopus)

Abstract

Background & Aims Human liver chimeric mice are useful models of human hepatitis virus infection, including hepatitis B and C virus infections. Independently, immunodeficient mice reconstituted with CD34+ hematopoietic stem cells (HSC) derived from fetal liver reliably develop human T and B lymphocytes. Combining these systems has long been hampered by inefficient liver reconstitution of human fetal hepatoblasts. Our study aimed to enhance hepatoblast engraftment in order to create a mouse model with syngeneic human liver and immune cells. Methods The effects of human oncostatin-M administration on fetal hepatoblast engraftment into immunodeficient fah−/− mice was tested. Mice were then transplanted with syngeneic human hepatoblasts and HSC after which human leukocyte chimerism and functionality were analyzed by flow cytometry, and mice were challenged with HBV. Results Addition of human oncostatin-M enhanced human hepatoblast engraftment in immunodeficient fah−/− mice by 5–100 fold. In contrast to mice singly engrafted with HSC, which predominantly developed human T and B lymphocytes, mice co-transplanted with syngeneic hepatoblasts also contained physiological levels of human monocytes and natural killer cells. Upon infection with HBV, these mice displayed rapid and sustained viremia. Conclusions Our study provides a new mouse model with improved human fetal hepatoblast engraftment and an expanded human immune cell repertoire. With further improvements, this model may become useful for studying human immunity against viral hepatitis. Lay summary Important human pathogens such as hepatitis B virus, hepatitis C virus and human immunodeficiency virus only infect human cells which complicates the development of mouse models for the study of these pathogens. One way to make mice permissive for human pathogens is the transplantation of human cells into immune-compromised mice. For instance, the transplantation of human liver cells will allow the infection of these so-called “liver chimeric mice” with hepatitis B virus and hepatitis C virus. The co-transplantation of human immune cells into liver chimeric mice will further allow the study of human immune responses to hepatitis B virus or hepatitis C virus. However, for immunological studies it will be crucial that the transplanted human liver and immune cells are derived from the same human donor. In our study we describe the efficient engraftment of human fetal liver cells and immune cells derived from the same donor into mice. We show that liver co-engraftment resulted in an expanded human immune cell repertoire, including monocytes and natural killer cells in the liver. We further demonstrate that these mice could be infected with hepatitis B virus, which lead to an expansion of natural killer cells. In conclusion we have developed a new mouse model that could be useful to study human immune responses to human liver pathogens.

Original languageEnglish (US)
Pages (from-to)334-343
Number of pages10
JournalJournal of Hepatology
Volume65
Issue number2
DOIs
StatePublished - Aug 1 2016
Externally publishedYes

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Natural Killer Cells
Monocytes
Liver
Hepatitis B virus
Hepacivirus
Hematopoietic Stem Cells
Virus Diseases
B-Lymphocytes
T-Lymphocytes
Hepatitis Viruses

Keywords

  • Hepatitis B virus
  • Human immune cells
  • Liver chimeric mice
  • Xenotransplantation

ASJC Scopus subject areas

  • Hepatology

Cite this

Humanized mice efficiently engrafted with fetal hepatoblasts and syngeneic immune cells develop human monocytes and NK cells. / Billerbeck, Eva K.; Mommersteeg, Michiel C.; Shlomai, Amir; Xiao, Jing W.; Andrus, Linda; Bhatta, Ankit; Vercauteren, Koen; Michailidis, Eleftherios; Dorner, Marcus; Krishnan, Anuradha; Charlton, Michael R.; Chiriboga, Luis; Rice, Charles M.; de Jong, Ype P.

In: Journal of Hepatology, Vol. 65, No. 2, 01.08.2016, p. 334-343.

Research output: Contribution to journalArticle

Billerbeck, EK, Mommersteeg, MC, Shlomai, A, Xiao, JW, Andrus, L, Bhatta, A, Vercauteren, K, Michailidis, E, Dorner, M, Krishnan, A, Charlton, MR, Chiriboga, L, Rice, CM & de Jong, YP 2016, 'Humanized mice efficiently engrafted with fetal hepatoblasts and syngeneic immune cells develop human monocytes and NK cells', Journal of Hepatology, vol. 65, no. 2, pp. 334-343. https://doi.org/10.1016/j.jhep.2016.04.022
Billerbeck, Eva K. ; Mommersteeg, Michiel C. ; Shlomai, Amir ; Xiao, Jing W. ; Andrus, Linda ; Bhatta, Ankit ; Vercauteren, Koen ; Michailidis, Eleftherios ; Dorner, Marcus ; Krishnan, Anuradha ; Charlton, Michael R. ; Chiriboga, Luis ; Rice, Charles M. ; de Jong, Ype P. / Humanized mice efficiently engrafted with fetal hepatoblasts and syngeneic immune cells develop human monocytes and NK cells. In: Journal of Hepatology. 2016 ; Vol. 65, No. 2. pp. 334-343.
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T1 - Humanized mice efficiently engrafted with fetal hepatoblasts and syngeneic immune cells develop human monocytes and NK cells

AU - Billerbeck, Eva K.

AU - Mommersteeg, Michiel C.

AU - Shlomai, Amir

AU - Xiao, Jing W.

AU - Andrus, Linda

AU - Bhatta, Ankit

AU - Vercauteren, Koen

AU - Michailidis, Eleftherios

AU - Dorner, Marcus

AU - Krishnan, Anuradha

AU - Charlton, Michael R.

AU - Chiriboga, Luis

AU - Rice, Charles M.

AU - de Jong, Ype P.

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N2 - Background & Aims Human liver chimeric mice are useful models of human hepatitis virus infection, including hepatitis B and C virus infections. Independently, immunodeficient mice reconstituted with CD34+ hematopoietic stem cells (HSC) derived from fetal liver reliably develop human T and B lymphocytes. Combining these systems has long been hampered by inefficient liver reconstitution of human fetal hepatoblasts. Our study aimed to enhance hepatoblast engraftment in order to create a mouse model with syngeneic human liver and immune cells. Methods The effects of human oncostatin-M administration on fetal hepatoblast engraftment into immunodeficient fah−/− mice was tested. Mice were then transplanted with syngeneic human hepatoblasts and HSC after which human leukocyte chimerism and functionality were analyzed by flow cytometry, and mice were challenged with HBV. Results Addition of human oncostatin-M enhanced human hepatoblast engraftment in immunodeficient fah−/− mice by 5–100 fold. In contrast to mice singly engrafted with HSC, which predominantly developed human T and B lymphocytes, mice co-transplanted with syngeneic hepatoblasts also contained physiological levels of human monocytes and natural killer cells. Upon infection with HBV, these mice displayed rapid and sustained viremia. Conclusions Our study provides a new mouse model with improved human fetal hepatoblast engraftment and an expanded human immune cell repertoire. With further improvements, this model may become useful for studying human immunity against viral hepatitis. Lay summary Important human pathogens such as hepatitis B virus, hepatitis C virus and human immunodeficiency virus only infect human cells which complicates the development of mouse models for the study of these pathogens. One way to make mice permissive for human pathogens is the transplantation of human cells into immune-compromised mice. For instance, the transplantation of human liver cells will allow the infection of these so-called “liver chimeric mice” with hepatitis B virus and hepatitis C virus. The co-transplantation of human immune cells into liver chimeric mice will further allow the study of human immune responses to hepatitis B virus or hepatitis C virus. However, for immunological studies it will be crucial that the transplanted human liver and immune cells are derived from the same human donor. In our study we describe the efficient engraftment of human fetal liver cells and immune cells derived from the same donor into mice. We show that liver co-engraftment resulted in an expanded human immune cell repertoire, including monocytes and natural killer cells in the liver. We further demonstrate that these mice could be infected with hepatitis B virus, which lead to an expansion of natural killer cells. In conclusion we have developed a new mouse model that could be useful to study human immune responses to human liver pathogens.

AB - Background & Aims Human liver chimeric mice are useful models of human hepatitis virus infection, including hepatitis B and C virus infections. Independently, immunodeficient mice reconstituted with CD34+ hematopoietic stem cells (HSC) derived from fetal liver reliably develop human T and B lymphocytes. Combining these systems has long been hampered by inefficient liver reconstitution of human fetal hepatoblasts. Our study aimed to enhance hepatoblast engraftment in order to create a mouse model with syngeneic human liver and immune cells. Methods The effects of human oncostatin-M administration on fetal hepatoblast engraftment into immunodeficient fah−/− mice was tested. Mice were then transplanted with syngeneic human hepatoblasts and HSC after which human leukocyte chimerism and functionality were analyzed by flow cytometry, and mice were challenged with HBV. Results Addition of human oncostatin-M enhanced human hepatoblast engraftment in immunodeficient fah−/− mice by 5–100 fold. In contrast to mice singly engrafted with HSC, which predominantly developed human T and B lymphocytes, mice co-transplanted with syngeneic hepatoblasts also contained physiological levels of human monocytes and natural killer cells. Upon infection with HBV, these mice displayed rapid and sustained viremia. Conclusions Our study provides a new mouse model with improved human fetal hepatoblast engraftment and an expanded human immune cell repertoire. With further improvements, this model may become useful for studying human immunity against viral hepatitis. Lay summary Important human pathogens such as hepatitis B virus, hepatitis C virus and human immunodeficiency virus only infect human cells which complicates the development of mouse models for the study of these pathogens. One way to make mice permissive for human pathogens is the transplantation of human cells into immune-compromised mice. For instance, the transplantation of human liver cells will allow the infection of these so-called “liver chimeric mice” with hepatitis B virus and hepatitis C virus. The co-transplantation of human immune cells into liver chimeric mice will further allow the study of human immune responses to hepatitis B virus or hepatitis C virus. However, for immunological studies it will be crucial that the transplanted human liver and immune cells are derived from the same human donor. In our study we describe the efficient engraftment of human fetal liver cells and immune cells derived from the same donor into mice. We show that liver co-engraftment resulted in an expanded human immune cell repertoire, including monocytes and natural killer cells in the liver. We further demonstrate that these mice could be infected with hepatitis B virus, which lead to an expansion of natural killer cells. In conclusion we have developed a new mouse model that could be useful to study human immune responses to human liver pathogens.

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KW - Human immune cells

KW - Liver chimeric mice

KW - Xenotransplantation

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