PMID- 20027308 OWN - NLM STAT- MEDLINE DCOM- 20100317 LR - 20211020 IS - 1932-6203 (Electronic) IS - 1932-6203 (Linking) VI - 4 IP - 12 DP - 2009 Dec 21 TI - Development of functional human NK cells in an immunodeficient mouse model with the ability to provide protection against tumor challenge. PG - e8379 LID - 10.1371/journal.pone.0008379 [doi] LID - e8379 AB - Studies of human NK cells and their role in tumor suppression have largely been restricted to in vitro experiments which lack the complexity of whole organisms, or mouse models which differ significantly from humans. In this study we showed that, in contrast to C57BL/6 Rag2(-/-)/gamma(c) (-/-) and NOD/Scid mice, newborn BALB/c Rag2(-/-)/gamma(c) (-/-) mice can support the development of human NK cells and CD56+ T cells after intrahepatic injection with hematopoietic stem cells. The human CD56(+) cells in BALB/c Rag2(-/-)/gamma(c) (-/-) mice were able to produce IFN-gamma in response to human IL-15 and polyI:C. NK cells from reconstituted Rag2(-/-)/gamma(c) (-/-) mice were also able to kill and inhibit the growth of K562 cells in vitro and were able to produce IFN-gamma in response to stimulation with K562 cells. In vivo, reconstituted Rag2(-/-)/gamma(c) (-/-) mice had higher survival rates after K562 challenge compared to non-reconstituted Rag2(-/-)/gamma(c) (-/-) mice and were able to control tumor burden in various organs. Reconstituted Rag2(-/-)/gamma(c) (-/-) mice represent a model in which functional human NK and CD56+ T cells can develop from stem cells and can thus be used to study human disease in a more clinically relevant environment. FAU - Kwant-Mitchell, Amanda AU - Kwant-Mitchell A AD - Centre for Gene Therapeutics, Department of Pathology and Molecular Medicine, McMaster University Health Sciences Centre, Hamilton, Ontario, Canada. FAU - Pek, Elishka A AU - Pek EA FAU - Rosenthal, Kenneth L AU - Rosenthal KL FAU - Ashkar, Ali A AU - Ashkar AA LA - eng GR - Canadian Institutes of Health Research/Canada PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20091221 PL - United States TA - PLoS One JT - PloS one JID - 101285081 RN - 0 (CD56 Antigen) RN - 0 (DNA-Binding Proteins) RN - 0 (Interleukin Receptor Common gamma Subunit) RN - 0 (Rag2 protein, mouse) RN - 82115-62-6 (Interferon-gamma) SB - IM MH - Animals MH - Body Weight MH - CD56 Antigen/metabolism MH - Cell Degranulation MH - Cell Proliferation MH - Cytotoxicity, Immunologic MH - DNA-Binding Proteins/deficiency/metabolism MH - Humans MH - Immunocompromised Host/*immunology MH - Injections MH - Interferon-gamma/biosynthesis MH - Interleukin Receptor Common gamma Subunit/deficiency/metabolism MH - K562 Cells MH - Killer Cells, Natural/*cytology/physiology/*transplantation MH - Mice MH - Mice, Inbred Strains MH - Models, Animal MH - Neoplasms/*immunology/pathology/*prevention & control MH - Survival Analysis MH - T-Lymphocytes/cytology/immunology/transplantation MH - Tumor Burden/immunology PMC - PMC2793015 COIS- Competing Interests: The authors have declared that no competing interests exist. EDAT- 2009/12/23 06:00 MHDA- 2010/03/18 06:00 PMCR- 2009/12/21 CRDT- 2009/12/23 06:00 PHST- 2009/06/23 00:00 [received] PHST- 2009/11/22 00:00 [accepted] PHST- 2009/12/23 06:00 [entrez] PHST- 2009/12/23 06:00 [pubmed] PHST- 2010/03/18 06:00 [medline] PHST- 2009/12/21 00:00 [pmc-release] AID - 09-PONE-RA-11206R2 [pii] AID - 10.1371/journal.pone.0008379 [doi] PST - epublish SO - PLoS One. 2009 Dec 21;4(12):e8379. doi: 10.1371/journal.pone.0008379.