Nikolay Turovets, PhD Director of Research and Therapeutic Development How is  Parthenogenesis Done? San Diego Research Ethics Consortium  Salk Institute for Biological Studies Parthenogenetic stem cell lines: Ethical considerations 8 July 2011, La Jolla, CA parthenogenesis.eventbrite.com www.turovets.com
Parthenogenetic activation is a way to create pluripotent stem cells without disruption of the viable embryo  Fertilization Parthenogenetic activation Ca 2+ time fertilization Ionomycin 5 min   Ca 2+ time parthenogenetic activation ionomycin 6-DMAP  or puromycin  4-5 hours  6-DMAP or puromycin Nikolay Turovets, PhD  www.turovets.com
Parthenogenetic activation Parthenogenetic activation is a way to create pluripotent stem cells without disruption of the viable embryo  Fertilization No life possible  Embryonic stem cells Parthenogenetic stem cells Nikolay Turovets, PhD  www.turovets.com
HLA heterozygous hpSC Immune-matching with donor  HLA homozygous hpSC Immune-matching with people other than the donor Two types of  human parthenogenetic stem cells (hpSC) Nikolay Turovets, PhD  www.turovets.com Recipient Transplantation Recipients  cells Recipient Donor Transplantation Donor cells
23 23 46 1pb 2pb 23 Embryonic stem cells 46 fertilization Nikolay Turovets, PhD  www.turovets.com
46 1pb Ionomycin 6-DMAP  23 23 46 Heterozygous parthenogenetic stem cells 46 parthenogenetic activation: heterozygous stem cells fertilization Nikolay Turovets, PhD  www.turovets.com
parthenogenetic activation: heterozygous stem cells fertilization parthenogenetic activation: homozygous stem cells 23 46 1pb 2pb 23 Ionomycin puromycin  Homozygous parthenogenetic stem cells 23 23 ? +  = 46 Nikolay Turovets, PhD  www.turovets.com
Typical hESC morphology; Diploid karyotype 46, XX Express appropriate markers; Demonstrate high levels of alkaline phosphatase; Demonstrate high levels of telomerase activity; Form embryoid bodies in suspension culture; Form teratomas after injection to immunodeficient animals;  Give differentiated derivatives of all three embryonic germ layers; hpSC demonstrate characteristics of hESC Nikolay Turovets, PhD  www.turovets.com
HLA-heterozygous hpSC lines are  totally immune-matched with the oocyte donors Nikolay Turovets, PhD  www.turovets.com
One HLA-homozygous hpSC line can be  immune-matched with millions of people Nikolay Turovets, PhD  www.turovets.com
hpSCs are patented and published by ISCO Nikolay Turovets, PhD  www.turovets.com
hpSCs respond to well characterized differentiation signals and demonstrate appropriate gene expression dynamics and transitions Nikolay Turovets, PhD  www.turovets.com
Hepatocytes derived from hpSC demonstrate appropriate functions  in vitro and in vivo ICG test PAS test glycogen storage PROD assay/P450 activity in vitro in vivo Nikolay Turovets, PhD  www.turovets.com
Differentiation capacity of hpSC:  Retinal pigment epithelium Nikolay Turovets, PhD  www.turovets.com
Differentiation capacity of hpSC:  Cornea-like structures CK 18-19  DAPI ZO-1 DAPI Nikolay Turovets, PhD  www.turovets.com
Major Collaborators Hepatocytes Cedars-Sinai Medical Center, LA Jeffrey Fair UC San Francisco Holger Willenbring Definitive endoderm ViaCyte/Novocell Ed Baedge Kevin D’Amour RPE UC Irvine Hans Keirstead Magdalene Seiler Methylation and global gene expression The Scripps Research Institute Jeanne Loring Louise Laurent Neurology University of Wurzburg, Germany Albrecht Muller  Immunogenicity studies UC San Diego Ewa Carrier Matthias von Herrath University of Berlin, Germany Hans-Dieter Volk Genetic studies Genesis Genetics Institute Marcus Hughes Nikolay Turovets, PhD  www.turovets.com

How is Parthenogenesis Done? (ANIMATED)

  • 1.
    Nikolay Turovets, PhDDirector of Research and Therapeutic Development How is Parthenogenesis Done? San Diego Research Ethics Consortium Salk Institute for Biological Studies Parthenogenetic stem cell lines: Ethical considerations 8 July 2011, La Jolla, CA parthenogenesis.eventbrite.com www.turovets.com
  • 2.
    Parthenogenetic activation isa way to create pluripotent stem cells without disruption of the viable embryo Fertilization Parthenogenetic activation Ca 2+ time fertilization Ionomycin 5 min Ca 2+ time parthenogenetic activation ionomycin 6-DMAP or puromycin 4-5 hours 6-DMAP or puromycin Nikolay Turovets, PhD www.turovets.com
  • 3.
    Parthenogenetic activation Parthenogeneticactivation is a way to create pluripotent stem cells without disruption of the viable embryo Fertilization No life possible Embryonic stem cells Parthenogenetic stem cells Nikolay Turovets, PhD www.turovets.com
  • 4.
    HLA heterozygous hpSCImmune-matching with donor HLA homozygous hpSC Immune-matching with people other than the donor Two types of human parthenogenetic stem cells (hpSC) Nikolay Turovets, PhD www.turovets.com Recipient Transplantation Recipients cells Recipient Donor Transplantation Donor cells
  • 5.
    23 23 461pb 2pb 23 Embryonic stem cells 46 fertilization Nikolay Turovets, PhD www.turovets.com
  • 6.
    46 1pb Ionomycin6-DMAP 23 23 46 Heterozygous parthenogenetic stem cells 46 parthenogenetic activation: heterozygous stem cells fertilization Nikolay Turovets, PhD www.turovets.com
  • 7.
    parthenogenetic activation: heterozygousstem cells fertilization parthenogenetic activation: homozygous stem cells 23 46 1pb 2pb 23 Ionomycin puromycin Homozygous parthenogenetic stem cells 23 23 ? + = 46 Nikolay Turovets, PhD www.turovets.com
  • 8.
    Typical hESC morphology;Diploid karyotype 46, XX Express appropriate markers; Demonstrate high levels of alkaline phosphatase; Demonstrate high levels of telomerase activity; Form embryoid bodies in suspension culture; Form teratomas after injection to immunodeficient animals; Give differentiated derivatives of all three embryonic germ layers; hpSC demonstrate characteristics of hESC Nikolay Turovets, PhD www.turovets.com
  • 9.
    HLA-heterozygous hpSC linesare totally immune-matched with the oocyte donors Nikolay Turovets, PhD www.turovets.com
  • 10.
    One HLA-homozygous hpSCline can be immune-matched with millions of people Nikolay Turovets, PhD www.turovets.com
  • 11.
    hpSCs are patentedand published by ISCO Nikolay Turovets, PhD www.turovets.com
  • 12.
    hpSCs respond towell characterized differentiation signals and demonstrate appropriate gene expression dynamics and transitions Nikolay Turovets, PhD www.turovets.com
  • 13.
    Hepatocytes derived fromhpSC demonstrate appropriate functions in vitro and in vivo ICG test PAS test glycogen storage PROD assay/P450 activity in vitro in vivo Nikolay Turovets, PhD www.turovets.com
  • 14.
    Differentiation capacity ofhpSC: Retinal pigment epithelium Nikolay Turovets, PhD www.turovets.com
  • 15.
    Differentiation capacity ofhpSC: Cornea-like structures CK 18-19 DAPI ZO-1 DAPI Nikolay Turovets, PhD www.turovets.com
  • 16.
    Major Collaborators HepatocytesCedars-Sinai Medical Center, LA Jeffrey Fair UC San Francisco Holger Willenbring Definitive endoderm ViaCyte/Novocell Ed Baedge Kevin D’Amour RPE UC Irvine Hans Keirstead Magdalene Seiler Methylation and global gene expression The Scripps Research Institute Jeanne Loring Louise Laurent Neurology University of Wurzburg, Germany Albrecht Muller Immunogenicity studies UC San Diego Ewa Carrier Matthias von Herrath University of Berlin, Germany Hans-Dieter Volk Genetic studies Genesis Genetics Institute Marcus Hughes Nikolay Turovets, PhD www.turovets.com

Editor's Notes

  • #12 Results of these work were published in two papers of “Cloning and Stem Cells” Journal in this and last years.