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1. US20090137040 - METHODS FOR MAKING AND USING REPROGRAMMED HUMAN SOMATIC CELL NUCLEI AND AUTOLOGOUS AND ISOGENIC HUMAN STEM CELLS

Office
United States of America
Application Number 12212557
Application Date 17.09.2008
Publication Number 20090137040
Publication Date 28.05.2009
Publication Kind A1
IPC
C12N 15/877
CCHEMISTRY; METALLURGY
12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
NMICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
15Mutation or genetic engineering; DNA or RNA concerning genetic engineering, vectors, e.g. plasmids, or their isolation, preparation or purification; Use of hosts therefor
09Recombinant DNA-technology
87Introduction of foreign genetic material using processes not otherwise provided for, e.g. co-transformation
873Techniques for producing new embryos, e.g. nuclear transfer, manipulation of totipotent cells or production of chimeric embryos
877Techniques for producing new mammalian cloned embryos
Applicants ADVANCED CELL TECHNOLOGY, INC.
Inventors Cibelli Jose
West Michael
Campbell Keith
Agents ROPES &; GRAY LLP
Title
(EN) METHODS FOR MAKING AND USING REPROGRAMMED HUMAN SOMATIC CELL NUCLEI AND AUTOLOGOUS AND ISOGENIC HUMAN STEM CELLS
Abstract
(EN)

Activated human embryos produced by therapeutic cloning can give rise to human totipotent and pluripotent stem cells from which autologous cells for transplantation therapy are derived. The present invention provides methods for producing activated human embryos that can be used to generate totipotent and pluripotent stem cells from which autologous cells and tissues suitable for transplantation can be derived. In one embodiment, the invention provides methods for producing activated human embryos by parthenogenesis; in another embodiment, the invention provides methods for producing activated human embryos by somatic cell nuclear transfer whereby the genetic material of a differentiated human donor cell is reprogrammed to form a diploid human pronucleus capable of directing a cell to generate the stem cells from which autologous, isogenic cells for transplantation therapy are derived. The ability to create autologous human embryos represents a critical step towards generating immune-compatible stem cells that can be used to overcome the problem of immune rejection in regenerative medicine. The activated human embryos produced by the present invention also provide model systems for identifying and analyzing the molecular mechanisms of epigenetic imprinting and the genetic regulation of embryogenesis and development.