Kedilerde MI ve MII Oositleri Kullanilarak Somatik Klonlama
| Autor: | Gül Bakirer Öztürk, Ramazan Arici, Ayşe Can, Asiye İzem Sandal, Kemal Ak, Sema Birler, Ezgi Ertürk, Selin Yağcioğlu, Kamber Demir, Serhat Pabuccuoğlu, Mithat Evecen |
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| Rok vydání: | 2016 |
| Předmět: |
0301 basic medicine
Cell fusion General Veterinary Somatic cell Embryo Anatomy Biology In vitro maturation Andrology 03 medical and health sciences Polar body 030104 developmental biology medicine.anatomical_structure embryonic structures Ultraviolet light medicine Somatic cell nuclear transfer Blastocyst |
| Zdroj: | Kafkas Universitesi Veteriner Fakultesi Dergisi. |
| ISSN: | 1300-6045 |
| Popis: | Animal production via SCNT provides a unique tool for protection of valuable individuals, conservation of vulnerable and endangered species and production of transgenic animals. A total of 167 MI and 219 MII stage oocytes were used as the material of the study. The oocytes were enucleated at 44 h after in vitro maturation by aspiration of the polar body and the MI or MII plates. Cycling granulosa cells were used for nuclear transfer. Cell fusion was induced with DC pulses of 2.0 kV/cm 60µs, 0.1s apart (2x) delivered by a BTX Electrocell Manipulator 200 (BTX, San Diego, CA, USA). After fusion, the embryos were activated by 1.0 kV/cm 20µs DC pulses 0.1s apart (2x) followed by 2 mM 6-DMAP (6-dimethylaminopurine) incubation in culture medium for 4 h in a humidified atmosphere of 5% CO2, 5% O2, and 90% N2 at 38°C. The somatic cell transferred embryos were cultured for 8 days in mSOF medium supplemented with 0.4% BSA in a humidified 5% CO2, 5% O2, and 90% N2 atmosphere at 38°C. After in vitro culture period, all embryos transferred to HSOF containing Hoechst 33342 (5 μg/mL) and the cell numbers were counted under ultraviolet light using a fluorescent microscope. The fusion (66.66 vs 21.55%) and cleavage rates (15.75 vs 11.11%) were significantly higher in MII stage oocytes than MI stage oocytes (P |
| Databáze: | OpenAIRE |
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