Pronuclear removal of tripronuclear zygotes can establish heteroparental normal karyotypic human embryonic stem cells
Purpose This study aimed to derive heteroparental normal karyotypic human embryonic stem cells (hESCs) from microsurgically corrected tripronuclear (3PN) zygotes. Methods After sequential culture for 5–6 days, embryos developed from microsurgically corrected 3PN zygotes were analyzed by fluorescence in situ hybridization (FISH) using probes for chromosomes 17, X and Y. Intact 3PN zygotes from clinical in vitro fertilization (IVF) cycles were cultured as the control group. The inner cell mass (ICM) of blastocysts that developed from microsurgically corrected 3PN zygotes was used to derive hESC lines, and the stem cell characteristics of these lines were evaluated. G-banding analysis was adopted to identify the karyotype of the hESC line, and the heteroparental inheritance of the hESC line was analyzed by DNA fingerprinting analysis. Results The blastocyst formation rate (13.5 %) of the microsurgically corrected 3PN zygotes was significantly higher (P < 0.05) than that of intact 3PN zygotes (8.7 %). The diploid rate of the blastocysts (55.0 %) was significantly higher (P < 0.05) than that of the arrested cleavage-stage embryos (18.4 %) in microsurgically corrected 3PN zygotes. The triploid rate of the microsurgically corrected 3PN zygotes (5.7 %) was significantly lower (P < 0.01) than that of intact 3PN zygotes (19.4 %). Furthermore, we established one heteroparental normal karyotypic hESC line from the microsurgically corrected tripronuclear zygotes. Conclusions Pronuclear removal can effectively remove the surplus chromosome set of 3PN zygotes. A combination of pronuclear removal and blastocyst culture enables the selection of diploidized blastocysts from which heteroparental normal karyotypic hESC lines can be derived..
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2016 |
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| Erschienen: |
2016 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:33 |
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| Enthalten in: |
Journal of assisted reproduction and genetics - 33(2016), 2 vom: 04. Jan., Seite 255-263 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Liao, Hong-Qing [VerfasserIn] |
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| Links: |
Volltext [lizenzpflichtig] |
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| BKL: | |
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| Themen: |
Blastocyst culture |
| Anmerkungen: |
© Springer Science+Business Media New York 2016 |
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| doi: |
10.1007/s10815-015-0634-8 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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OLC2114724697 |
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| 245 | 1 | 0 | |a Pronuclear removal of tripronuclear zygotes can establish heteroparental normal karyotypic human embryonic stem cells |
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| 520 | |a Purpose This study aimed to derive heteroparental normal karyotypic human embryonic stem cells (hESCs) from microsurgically corrected tripronuclear (3PN) zygotes. Methods After sequential culture for 5–6 days, embryos developed from microsurgically corrected 3PN zygotes were analyzed by fluorescence in situ hybridization (FISH) using probes for chromosomes 17, X and Y. Intact 3PN zygotes from clinical in vitro fertilization (IVF) cycles were cultured as the control group. The inner cell mass (ICM) of blastocysts that developed from microsurgically corrected 3PN zygotes was used to derive hESC lines, and the stem cell characteristics of these lines were evaluated. G-banding analysis was adopted to identify the karyotype of the hESC line, and the heteroparental inheritance of the hESC line was analyzed by DNA fingerprinting analysis. Results The blastocyst formation rate (13.5 %) of the microsurgically corrected 3PN zygotes was significantly higher (P < 0.05) than that of intact 3PN zygotes (8.7 %). The diploid rate of the blastocysts (55.0 %) was significantly higher (P < 0.05) than that of the arrested cleavage-stage embryos (18.4 %) in microsurgically corrected 3PN zygotes. The triploid rate of the microsurgically corrected 3PN zygotes (5.7 %) was significantly lower (P < 0.01) than that of intact 3PN zygotes (19.4 %). Furthermore, we established one heteroparental normal karyotypic hESC line from the microsurgically corrected tripronuclear zygotes. Conclusions Pronuclear removal can effectively remove the surplus chromosome set of 3PN zygotes. A combination of pronuclear removal and blastocyst culture enables the selection of diploidized blastocysts from which heteroparental normal karyotypic hESC lines can be derived. | ||
| 650 | 4 | |a Tripronuclear zygotes | |
| 650 | 4 | |a Pronuclear removal | |
| 650 | 4 | |a Blastocyst culture | |
| 650 | 4 | |a hESCs | |
| 650 | 4 | |a Heteroparental inheritance | |
| 700 | 1 | |a OuYang, Qi |4 aut | |
| 700 | 1 | |a Zhang, Shuo-Ping |4 aut | |
| 700 | 1 | |a Cheng, De-Hua |4 aut | |
| 700 | 1 | |a Lu, Guang-Xiu |4 aut | |
| 700 | 1 | |a Lin, Ge |4 aut | |
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