摘要:
The invention provides methods for generating induced pluripotent stem (iPS) cells from normal and mutant adult cells, as well as the iPS cells so generated from such methods. In some aspects, iPS cells are generated by ectopically expressing SOX2 and OCT4 nucleic acids in such adult cells. Other nucleic acids such as but not limited to MYC may also be ectopically expressed in such adult cells in the methods described herein.
摘要:
The methods and kits described herein are based, in part, to the discovery phenotype representing a fully-reprogrammed iPS cell and several reprogramming intermediates. The methods and kits described herein permit identification of fully-reprogrammed iPS cells and further permits one of skill in the art to monitor the emergence of iPS cells during the reprogramming process. The methods/kits can also be performed using real time using live cell imaging. Also described herein are methods for screening candidate reprogramming agents by monitoring the emergence of fully-reprogrammed iPS cells in the presence and absence of such an agent.
摘要:
The methods and kits described herein are based, in part, to the discovery phenotype representing a fully-reprogrammed iPS cell and several reprogramming intermediates. The methods and kits described herein permit identification of fully-reprogrammed iPS cells and further permits one of skill in the art to monitor the emergence of iPS cells during the reprogramming process. The methods/kits can also be performed using real time using live cell imaging. Also described herein are methods for screening candidate reprogramming agents by monitoring the emergence of fully-reprogrammed iPS cells in the presence and absence of such an agent.
摘要:
Provided herein are differentially methylated regions (DMRs) of reprogrammed iPS cells (R-DMRs) and methods of use thereof. The invention provides methods for detecting and analyzing alterations in the methylation status of DMRs in iPS cells, somatic cells and embryonic stem (ES) cells as well as methods for reprogramming somatic cells to generate an iPS cell.
摘要:
The present invention provides a method for enhancing the proliferation and/or hematopoietic differentiation and/or maintenance of mammalian stem cells. The method is useful for generating expanded populations of hematopoietic stem cells (HSCs) and thus mature blood cell lineages. This is desirable where a mammal has suffered a decrease in hematopoietic or mature blood cells as a consequence of disease, radiation or chemotherapy. The method of the present invention comprises increasing the intracellular level of a cdx in stem cells, including hematopoietic stem cells, in culture, either by providing an exogenous cdx protein to the cell, or by introduction into the cell of a genetic construct encoding a cdx. The cdx is selected from the cdx family and includes cdx1, cdx2, or cdx4. The cdx may be a wild type protein appropriate for the species from which the cells are derived, or a mutant form of the protein.
摘要:
Methods are provided for treating cancer, comprising administering (1) a farnesyl protein transferase inhibitor in conjunction with (2) an additional Ras signaling pathway inhibitor to induce cancer cell death and tumor regression.
摘要:
Methods are provided for identifying nucleic acids. Methods of the invention are useful for identifying and analyzing nucleic acids, especially variants of single nucleotide polymorphisms, that are indicative of disease or the predisposition for disease.
摘要:
The present invention provides methods for inducing differentiation of a stem cell, such as an embryonic stem cell, into a hematopoietic stem cell, by expressing a cdx gene and/or a hox gene. The method is useful for generating expanded populations of hematopoietic stem cells (HSCs) and thus mature blood cell lineages. This is desirable where a mammal has suffered a decrease in hematopoietic or mature blood cells as a consequence of disease, radiation or chemotherapy.
摘要:
The present invention provides a method for enhancing the proliferation and/or hematopoietic differentiation and/or maintenance of mammalian stem cells. The method is useful for generating expanded populations of hematopoietic stem cells (HSCs) and thus mature blood cell lineages. This is desirable where a mammal has suffered a decrease in hematopoietic or mature blood cells as a consequence of disease, radiation or chemotherapy. The method of the present invention comprises increasing the intracellular level of a cdx in stem cells, including hematopoietic stem cells, in culture, either by providing an exogenous cdx protein to the cell, or by introduction into the cell of a genetic construct encoding a cdx. The cdx is selected from the cdx family and includes cdx1, cdx2, or cdx4. The cdx may be a wild type protein appropriate for the species from which the cells are derived, or a mutant form of the protein.
摘要:
The present invention provides a method for enhancing the proliferation and/or hematopoietic differentiation and/or maintenance of mammalian stem cells. The method is useful for generating expanded populations of hematopoietic stem cells (HSCs) and thus mature blood cell lineages. This is desirable where a mammal has suffered a decrease in hematopoietic or mature blood cells as a consequence of disease, radiation or chemotherapy. The method of the present invention comprises increasing the intracellular level of a cdx in stem cells, including hematopoietic stem cells, in culture, either by providing an exogenous cdx protein to the cell, or by introduction into the cell of a genetic construct encoding a cdx. The cdx is selected from the cdx family and includes cdx1, cdx2, or cdx4. The cdx may be a wild type protein appropriate for the species from which the cells are derived, or a mutant form of the protein.