摘要:
The present invention relates to a combination of a hyaluronan oligomer and/or polymer and a factor capable of mobilizing stem cells. The present invention relates also to a use of the combination to alter the relative amounts of blood cells and/or the types of blood cells in a subject. Further, the present invention relates to a use of the combination to mobilize stem cells to the bloodstream of a subject. Additionally, the present invention relates to a hyaluronan oligomer and/or polymer.
摘要:
The invention describes novel compositions of glycans, glycomes, from human embryonic stem cells, and especially novel subcompositions of the glycomes with specific monosaccharide compositions and glycan structures. The invention is further directed to methods for modifying the glycomes and analysis of the glycomes and the modified glycomes. Furthermore, the invention is directed to stem cells carrying the modified glycomes on their surfaces. The glycomes are preferably analysed by profiling methods able to detect reproducibly and quantitatively numerous individual glycan structures at the same time. The most preferred type of the profile is a mass spectrometric profile. The invention specifically revealed novel target structures and is especially directed to the development of reagents recognizing the structures.
摘要:
The invention relates to a method for culturing human embryonic stem cells (hESCs) and/or induced pluripotent stem (iPS) cells on a lectin. The invention relates also to the use of a lectin in a method for culturing human embryonic stem cells (hESCs) and/or induced pluripotent stem (iPS) celts and a culture medium composition containing a lectin attached on the culturing plates.
摘要:
The present invention relates to a method of profiling a cell population comprising a step of detecting the presence or absence of at least two biological markers in said cell population, wherein at least one of said markers is a cell surface marker, which is a sialylated N-glycan marker with structure NeuNAcα3Gal, and at least one of said markers is a mRNA marker related to glycoproteins and/or glycosynthase proteins. The invention also relates to method for purification of cord blood cell population and to a complete cell population from cord blood purified by said method.
摘要:
The invention describes novel reagents that can be applied for analysis of the quality of human cells. The method evaluates the integrity of the plasma membrane of the cells by detecting novel glyco structures found only intracellularly. The method can be applied, for example, to demonstrate exposure of therapeutic cell preparation to potentially harmful conditions. It can also be used as a quality control tool in methods in which intact cell membrane is essential and it can be applied in separation of damaged cells from non- damaged.
摘要:
This invention relates to antibody engineering technology. More particularly, the present invention relates to human IgM antibodies and derivatives thereof, which have novel binding specificity with regard to several oligosaccharide sequences and/or xenoantigenic sialic aicd residue. The present invention also relates to processes for making and engineering such novel saccharide and/or NeuGc-binding monoclonal antibodies and to methods for using these antibodies and derivatives thereof in the field of immunodiagnostics, enabling qualitative and quantitative determination of xenoantigenic NeuGc in biological and raw material samples, as well as in immunotherapy, enabling blocking of xenoantigenic NeuGc in patients.
摘要:
The present invention discloses a method of evaluating the status of a stem cell preparation comprising the step of detecting the presence of a glycan structure or a group of glycan structures in said preparation. The detection step can be performed by the use of a lectin specific to a glycan structure of interest.
摘要:
The invention describes specific sialylated structures present on human stem cells and cell populations derived thereof. The invention is especially directed to methods to control the status of stem cells by observing changes in sialylation of the cells; and control of potential contaminations of biological materials; and reagents and methods used in connection with the cells in order to avoid alterations of the cell glycosylation by contaminating materials. The invention is further directed to novel stem cells, the glycosylation of which has been specifically altered.
摘要:
The invention describes methods for production of novel composition of glycans, glycomes, from human multipotent stem cells. The invention is further directed to methods for modifying the glycomes and analysis of the glycomes and the modified glycomes. Furthermore the invention is directed to stem cells carrying the modified glycomes on their surfaces.
摘要:
The invention describes reagents and methods for speficic binders to glycan structures of stem cells. Furthermore the invention is directed to screening of additional binding reagents against specific glycan epitopes on the surfaces of the stem cells. The preferred binders of the glycans structures includes proteins such as enzymes, lectins and antibodies.