PMID- 18040289 OWN - NLM STAT- MEDLINE DCOM- 20080401 LR - 20071213 IS - 1748-7838 (Electronic) IS - 1001-0602 (Linking) VI - 17 IP - 12 DP - 2007 Dec TI - A highly homozygous and parthenogenetic human embryonic stem cell line derived from a one-pronuclear oocyte following in vitro fertilization procedure. PG - 999-1007 AB - Homozygous human embryonic stem cells (hESCs) are thought to be better cell sources for hESC banking because their human leukocyte antigen (HLA) haplotype would strongly increase the degree of matching for certain populations with relatively smaller cohorts of cell lines. Homozygous hESCs can be generated from parthenogenetic embryos, but only heterozygous hESCs have been established using the current strategy to artificially activate the oocyte without second polar body extrusion. Here we report the first successful derivation of a human homozygous ESC line (chHES-32) from a one-pronuclear oocyte following routine in vitro fertilization treatment. chHES-32 cells express common markers and genes with normal hESCs. They have been propagated in an undifferentiated state for more than a year (>P50) and have maintained a stable karyotype of 46, XX. When differentiated in vivo and in vitro, chHES-32 cells can form derivatives from all three embryonic germ layers. The almost undetectable expression of five paternally expressed imprinted genes and their HLA genotype identical to the oocyte donor indicated their parthenogenetic origin. Using genome-wide single-nucleotide polymorphism analysis and DNA fingerprinting, the homozygosity of chHES-32 cells was further confirmed. The results indicated that 'unwanted' one-pronuclear oocytes might be a potential source for human homozygous and parthenogenetic ESCs, and suggested an alternative strategy for obtaining homozygous hESC lines from parthenogenetic haploid oocytes. FAU - Lin, Ge AU - Lin G AD - Institute of Reproductive and Stem Cell Engineering, Central South University, Changsha 410078, China. FAU - OuYang, Qi AU - OuYang Q FAU - Zhou, Xiaoying AU - Zhou X FAU - Gu, Yifan AU - Gu Y FAU - Yuan, Ding AU - Yuan D FAU - Li, Wen AU - Li W FAU - Liu, Gang AU - Liu G FAU - Liu, Tiancheng AU - Liu T FAU - Lu, Guangxiu AU - Lu G LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - England TA - Cell Res JT - Cell research JID - 9425763 RN - 0 (HLA Antigens) SB - IM CIN - Cell Res. 2008 Feb;18(2):215-7. PMID: 18246085 MH - Animals MH - Cell Differentiation MH - Cell Line/*cytology/metabolism MH - Cell Lineage MH - Embryonic Stem Cells/*cytology/metabolism MH - *Fertilization in Vitro MH - Genomic Imprinting MH - HLA Antigens/metabolism MH - *Homozygote MH - Humans MH - Immunohistochemistry MH - Karyotyping MH - Mice MH - Mice, SCID MH - Oocytes/*cytology MH - *Parthenogenesis MH - Polymorphism, Single Nucleotide EDAT- 2007/11/28 09:00 MHDA- 2008/04/02 09:00 CRDT- 2007/11/28 09:00 PHST- 2007/11/28 09:00 [pubmed] PHST- 2008/04/02 09:00 [medline] PHST- 2007/11/28 09:00 [entrez] AID - cr200797 [pii] AID - 10.1038/cr.2007.97 [doi] PST - ppublish SO - Cell Res. 2007 Dec;17(12):999-1007. doi: 10.1038/cr.2007.97.