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Cutting edge: genetic characterization of IFN-producing killer dendritic cells.

Journal of immunology (Baltimore, Md. : 1950) (2009-04-22)
Fanny Guimont-Desrochers, Zachary John Cappello, Miguel Chagnon, Marcia McDuffie, Sylvie Lesage
ABSTRACT

The combined phenotypic expression of CD11c(low)B220(+)CD122(+)DX5(+) has been used to define a novel cell type termed IFN-producing killer dendritic cells (IKDC). IKDC readily produce IFN-gamma and demonstrate spontaneous cytotoxic activity toward tumors, suggesting that a modulation of IKDC number may be beneficial in cancer treatment. We examined various mouse strains and found that IKDC number was highly variable between the different strains. A linkage analysis associated the distal arm of chromosome 7 with variations in IKDC number. The genetic contribution of chromosome 7 to the regulation of IKDC number was confirmed through the use of congenic mice. We further demonstrate that IKDC proportion is regulated by intrinsic hematopoietic factors. We discuss the role of various candidate genes in the regulation of this newly described cell type and its implication in therapy.

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Brand
Product Description

Sigma-Aldrich
Collagenase from Clostridium histolyticum, suitable for release of physiologically active rat hepatocytes, Type IV, 0.5-5.0 FALGPA units/mg solid, ≥125 CDU/mg solid
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Collagenase from Clostridium histolyticum, for general use, Type I, 0.25-1.0 FALGPA units/mg solid, ≥125 CDU/mg solid
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Collagenase from Clostridium histolyticum, release of rat epididymal adipocytes and hepatocytes tested (for methodology see Type II and Type IV), Type VIII, 0.5-5.0 FALGPA units/mg solid, ≥125 CDU/mg solid
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Collagenase from Clostridium histolyticum, Type IA, 0.5-5.0 FALGPA units/mg solid, ≥125 CDU/mg solid, For general use
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Collagenase from Clostridium histolyticum, release of physiologically active rat pancreatic islets tested, Type XI, 2-5 FALGPA units/mg solid, ≥800 CDU/mg solid
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Collagenase from Clostridium histolyticum, powder, Suitable for the digestion and isolation of physiologically active pancreatic islet cells, suitable for cell culture
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Collagenase from Clostridium histolyticum, lyophilized powder, ≥125 CDU/mg solid (CDU = collagen digestion units), 0.5-5.0 FALGPA units/mg solid
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Collagenase from Clostridium histolyticum, release of physiologically active rat pancreatic islets tested, Type V, ≥1 FALGPA units/mg solid, >125 CDU/mg solid
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Collagenase from Clostridium histolyticum, 0.2 μm filtered, release of physiologically active rat hepatocytes tested, Type IV-S, 0.5-5.0 FALGPA units/mg solid, ≥125 CDU/mg solid
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Collagenase from Clostridium histolyticum, high purity, purified by chromatography, Type VII, ≥4 FALGPA units/mg solid, lyophilized powder, ≥700 CDU/mg solid (CDU = collagen digestion units)
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Collagenase from Clostridium histolyticum, lyophilized powder (from 0.2μm filtered solution), 0.5-5.0 FALGPA units/mg solid, suitable for cell culture
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Collagenase from Clostridium histolyticum, lyophilized powder (from sterile-filtered solution), Suitable for digestion and isolation of physiologically active pancreatic islet cells, suitable for cell culture
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Collagenase from Clostridium histolyticum, 0.2 μm filtered, release of physiologically active rat epididymal adipocytes tested, Type II-S, 0.5-5.0 FALGPA units/mg solid
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Collagenase from Clostridium histolyticum, 0.2 μm filtered, for general use, Type I-S, 0.2-1.0 FALGPA units/mg solid, ≥125 CDU/mg solid
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Collagenase from Clostridium histolyticum, sterile; 0.2 μm filtered, Type IA-S, 0.5-5.0 FALGPA units/mg solid, ≥125 CDU/mg solid
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