摘要:
An 18 kDa protein, denominated FDF-3, has been isolated from cultures of human fibroblasts and has been found to potentiate the growth- and differentiation-promoting activities of certain cytokines toward hematopoietic progenitor cells. The amino acid sequence of the FDF-3 protein, shown in SEQ ID NO: 14, corresponds to the sequence of a C-terminal domain of human fibronectin. The protein is useful in combination with IL-3, G-CSF, GM-CSF, or SCF (stem cell factor) in the expansion of hematopoietic cell populations in vitro or in therapeutic methods to promote recovery from leukopenia or myelosuppresion in vivo.
摘要:
The present invention relates to a method for producing human eosinophils from human pluripotent stem cells. More specifically, the present invention provides a method for producing human eosinophils from human pluripotent stem cells, which method comprises the steps of: (1) co-culturing, in the presence of VEGF, human pluripotent stem cells with cells separated from the AGM region of a mammalian fetus; (2) performing suspension culture using a medium comprising IL-3, IL-6, Flt3 ligand, SCF, TPO and serum; (3) performing suspension culture using a medium comprising IL-3, SCF, GM-CSF and serum; and, optionally, (4) performing suspension culture using a medium comprising IL-3, IL-5 and serum.
摘要:
The present invention provides useful means in an expansion culture system for a hematopoietic cell (hematopoietic stem cell, hematopoietic progenitor cell). Specifically, the present invention provides a composition for expanding a hematopoietic cell (hematopoietic stem cell, hematopoietic progenitor cell) containing recombinant human serum albumin; a serum-free medium for expanding a hematopoietic cell containing a basal medium and recombinant human serum albumin; a method of expanding a hematopoietic cell comprising culturing a hematopoietic cell in a serum-free medium containing recombinant human serum albumin, and a culture of a hematopoietic cell that can be obtained by the expansion method.
摘要:
The present invention provides useful means in an expansion culture system for a hematopoietic cell (hematopoietic stem cell, hematopoietic progenitor cell). Specifically, the present invention provides a composition for expanding a hematopoietic cell (hematopoietic stem cell, hematopoietic progenitor cell) containing recombinant human serum albumin; a serum-free medium for expanding a hematopoietic cell containing a basal medium and recombinant human serum albumin; a method of expanding a hematopoietic cell comprising culturing a hematopoietic cell in a serum-free medium containing recombinant human serum albumin, and a culture of a hematopoietic cell that can be obtained by the expansion method.
摘要:
The present invention provides an immunodeficient mouse (NOG mouse) suitable for engraftment, differentiation and proliferation of heterologous cells, and a method of producing such a mouse. This mouse is obtained by backcrossing a C.B-17-scid mouse with an NOD/Shi mouse, and further backcrossing an interleukin 2-receptor γ-chain gene-knockout mouse with the thus backcrossed mouse. It is usable for producing a human antibody and establishing a stem cell assay system, a tumor model and a virus-infection model.
摘要:
Stem cell factor in combination with gp130 signaling supports proliferation, differentiation and terminal maturation of erythroid cells from normal human hematopoietic stem cells.
摘要:
The present invention relates to a method for producing human mast cells from human pluripotent stem cells. More particularly, the present invention provides a method for producing human mast cells from human pluripotent stem cells, comprising the steps of: (a) culturing human pluripotent stem cells under a condition suitable for promoting differentiation of the human pluripotent stem cells into hematopoietic progenitor cells expressing CD34; and (b) culturing the cells obtained in step (a) in the presence of hematopoietic factors comprising thrombopoietin (TPO) and Flt3 ligand.
摘要:
The present invention provides an immunodeficient mouse (NOG mouse) suitable for engraftment, differentiation and proliferation of heterologous cells, and a method of producing such a mouse. This mouse is obtained by backcrossing a C.B-17-scid mouse with an NOD/Shi mouse, and further backcrossing an interleukin 2-receptor γ-chain gene-knockout mouse with the thus backcrossed mouse. It is usable for producing a human antibody and establishing a stem cell assay system, a tumor model and a virus-infection model.
摘要:
A platelet-increasing preparation which comprises an effective amount of an interleukin-6 receptor and a pharmaceutically acceptable excipient. Preferably the preparation further comprises interleukin-6 and an ingredient selected from a stem cell factor, interleukin-3 and thrombopoietin.
摘要:
Stem cell factor in combination with soluble interleukin-6 receptor, interleukin-6, for gp130 signaling, supports the proliferation, differentiation and terminal maturation of blood cells from normal human hematopoietic multipotential cells.