Related Experiment Video
Updated: Jun 10, 2026

Transnuclear Mice with Pre-defined T Cell Receptor Specificities Against Toxoplasma gondii Obtained Via SCNT
Published on: September 30, 2010
Efficient derivation of embryonic stem cells from nuclear transfer and parthenogenetic embryos derived from
Li-Ying Sung1, Ching-Chien Chang, Tomokazu Amano
1Institute of Biotechnology, National Taiwan University , Taipei 106, Taiwan.
Abstract:
Deriving histocompatible embryonic stem (ES) cells by somatic cell nuclear transfer (SCNT) and parthenogenetic activation (PA) requires fresh oocytes, which prevents their applications in humans. Here, we evaluated the efficiency of deriving ES cells from mature metaphase II (MII) and immature metaphase I (MI) vitrified oocytes, by PA or SCNT, in a mouse model. We successfully generated ES cell lines from PA (MII and MI) and SCNT (MII and MI) blastocysts. These cell lines expressed genes and antigens characteristic of pluripotent ES cells and produced full-term pups upon tetraploid embryo complementation. This study established an animal model for efficient generation of patient-specific ES cell lines using cryopreserved oocytes. This is a major step forward in the application of therapeutic cloning and parthenogenetic technology in human regenerative medicine and will serve as an important alternative to the iPS cell technology in countries/regions where these technologies are permitted.
Related Concept Videos
Methods of Nuclear Reprogramming
Introduction to Nuclear Reprogramming
Embryonic Stem Cells
ES cells are grown in a culture medium where they can divide indefinitely, creating ES cell lines. Under certain conditions, ES cells can differentiate, either spontaneously into a variety of...
Embryonic Stem Cells

