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Hennings JM, Zimmer RL, Nabli H, Davis JW, Sutovsky P, Sutovsky M, Sharpe-Timms KL. Improved Murine Blastocyst Quality and Development in a Single Culture Medium Compared to Sequential Culture Media. Reprod Sci 2015; 23:310-7. [PMID: 26668049 DOI: 10.1177/1933719115618281] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
OBJECTIVE Validate single versus sequential culture media for murine embryo development. DESIGN Prospective laboratory experiment. SETTING Assisted Reproduction Laboratory. ANIMALS Murine embryos. INTERVENTIONS Thawed murine zygotes cultured for 3 or 5 days (d3 or d5) in single or sequential embryo culture media developed for human in vitro fertilization. MAIN OUTCOME MEASURES On d3, zygotes developing to the 8 cell (8C) stage or greater were quantified using 4',6-diamidino-2-phenylindole (DAPI), and quality was assessed by morphological analysis. On d5, the number of embryos reaching the blastocyst stage was counted. DAPI was used to quantify total nuclei and inner cell mass nuclei. Localization of ubiquitin C-terminal hydrolase L1 (UCHL1) and ubiquitin C-terminal hydrolase L3 (UCHL3) was reference points for evaluating cell quality. RESULTS Comparing outcomes in single versus to sequential media, the odds of embryos developing to the 8C stage on d3 were 2.34 time greater (P = .06). On d5, more embryos reached the blastocyst stage (P = <.0001), hatched, and had significantly more trophoblast cells (P = .005) contributing to the increased total cell number. Also at d5, localization of distinct cytoplasmic UCHL1 and nuclear UCHL3 was found in high-quality hatching blastocysts. Localization of UCHL1 and UCHL3 was diffuse and inappropriately dispersed throughout the cytoplasm in low-quality nonhatching blastocysts. CONCLUSIONS Single medium yields greater cell numbers, an increased growth rate, and more hatching of murine embryos. Cytoplasmic UCHL1 and nuclear UHCL3 localization patterns were indicative of embryo quality. Our conclusions are limited to murine embryos but one might speculate that single medium may also be more beneficial for human embryo culture. Human embryo studies are needed.
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Affiliation(s)
- Justin M Hennings
- Division of Reproductive and Perinatal Research, Department of Obstetrics, Gynecology and Women's Health, School of Medicine, Columbia, MO, USA Division of Animal Sciences, College of Agriculture, Food and Natural Resources, Columbia, MO, USA
| | - Randall L Zimmer
- Division of Reproductive and Perinatal Research, Department of Obstetrics, Gynecology and Women's Health, School of Medicine, Columbia, MO, USA
| | - Henda Nabli
- Division of Reproductive and Perinatal Research, Department of Obstetrics, Gynecology and Women's Health, School of Medicine, Columbia, MO, USA
| | - J Wade Davis
- Department of Health Management and Informatics, School of Medicine, The University of Missouri, Columbia, MO, USA Department of Statistics, College of Arts and Sciences, The University of Missouri, Columbia, MO, USA Biostatistics and Research Design, Galena Hall, Columbia, MO, USA
| | - Peter Sutovsky
- Division of Reproductive and Perinatal Research, Department of Obstetrics, Gynecology and Women's Health, School of Medicine, Columbia, MO, USA Division of Animal Sciences, College of Agriculture, Food and Natural Resources, Columbia, MO, USA
| | - Miriam Sutovsky
- Division of Animal Sciences, College of Agriculture, Food and Natural Resources, Columbia, MO, USA
| | - Kathy L Sharpe-Timms
- Division of Reproductive and Perinatal Research, Department of Obstetrics, Gynecology and Women's Health, School of Medicine, Columbia, MO, USA Division of Animal Sciences, College of Agriculture, Food and Natural Resources, Columbia, MO, USA
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