2013
DOI: 10.4049/jimmunol.1300742
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Induction of Functional Human Macrophages from Bone Marrow Promonocytes by M-CSF in Humanized Mice

Abstract: Engraftment of human CD34+ hematopoietic stem/progenitor cells into immunodeficient mice leads to robust reconstitution of human T and B cells but not monocytes and macrophages. To identify the cause underlying the poor monocyte and macrophage reconstitution, we analyzed human myeloid cell development in humanized mice and found that it was blocked at the promonocyte stage in the bone marrow. Expression of human M-CSF or GM-CSF by hydrodynamic injection of cytokine-encoding plasmid completely abolished the acc… Show more

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Cited by 40 publications
(42 citation statements)
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“…In the BRG model, injection of human IL-3 and GM-CSF increased myeloid engraftment within the lung and led to increased innate responses to virus infection (50). Treatment of NSG Hu-SRC-SCID mice with M-CSF led to decreased viral transcript levels early after infection and was associated with a burst of inflammatory cytokines, such as IL-6 and TNF at 48 hours post infection (51). …”
Section: Infectious Disease In Humanized Micementioning
confidence: 99%
“…In the BRG model, injection of human IL-3 and GM-CSF increased myeloid engraftment within the lung and led to increased innate responses to virus infection (50). Treatment of NSG Hu-SRC-SCID mice with M-CSF led to decreased viral transcript levels early after infection and was associated with a burst of inflammatory cytokines, such as IL-6 and TNF at 48 hours post infection (51). …”
Section: Infectious Disease In Humanized Micementioning
confidence: 99%
“…For example, human myeloid cells have been found to be less than 5–10% of what is found in humans[reviewed in (9)]. Although some studies report that these myeloid cells are reasonably functional (90;109), other studies have described these myeloid cells as phenotypically immature and functionally defective (110). Furthermore, human NK cell maturation, function and homeostasis are also defective in humanized mice owing in part, to NK cell susceptibility to phagocytosis by murine macrophages (98) (discussed below) and lack of trans-presentation hIL15-hIL15Rα(111).…”
Section: Current Strategies For Improving Engraftment Of Human Hematomentioning
confidence: 99%
“…al. reported that hydrodynamic delivery of a plasmid encoding for human M-CSF enhanced the generation of mature and functional monocytes and tissue-associated macrophages in Hu-HSC-NSG mice (109). The use of transgenic technology is another approach that is currently being used to enhance expression of human cytokines and growth factors in immuno-deficient mice.…”
Section: Current Strategies For Improving Engraftment Of Human Hematomentioning
confidence: 99%
“…M-CSF mediates the survival and proliferation of precursors of the monocyte and macrophage lineage and their differentiation into mature phagocytes [1,2]. Macrophages, in relation to the immune response, exist as phagocytes and antigen-presenting cells [3,4].…”
Section: Biological Effect Of Macrophage Colony-stimulating Factor (Mmentioning
confidence: 99%
“…Macrophages, in relation to the immune response, exist as phagocytes and antigen-presenting cells [3,4]. Furthermore, the activity of macrophages is associated with the regulation of many biological processes and is dependent on the actual macrophage phenotype induced under various inflammatory conditions [1]. Macrophages play an important role in homeostasis, autoimmunization, and first defense during infection.…”
Section: Biological Effect Of Macrophage Colony-stimulating Factor (Mmentioning
confidence: 99%