A novel culture medium with reduced nutrient concentrations supports the development and viability of mouse embryos
| Autor: | R. Pasquariello, Rebecca L. Krisher, McKenna C. Dyer, Sandeep K. Rajput, Corey D. Broeckling, Alison F. Ermisch, S. Lyons, Jason R. Herrick, William B. Schoolcraft |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
0301 basic medicine
Embryology lcsh:Medicine Fertilization in Vitro Article Andrology Embryo Culture Techniques 03 medical and health sciences Mice 0302 clinical medicine Nutrient Pyruvic Acid medicine Animals Blastocyst Lactic Acid lcsh:Science Edetic Acid Fetus 030219 obstetrics & reproductive medicine Multidisciplinary Chemistry lcsh:R Embryogenesis Gene Expression Regulation Developmental Embryo Metabolism Dipeptides Translational research Embryo Transfer In vitro Culture Media Metabolic pathway 030104 developmental biology medicine.anatomical_structure Glucose Infertility embryonic structures lcsh:Q Female Amino Acids Essential |
| Zdroj: | Scientific Reports Scientific Reports, Vol 10, Iss 1, Pp 1-15 (2020) |
| ISSN: | 2045-2322 |
| Popis: | Further refinement of culture media is needed to improve the quality of embryos generated in vitro. Previous results from our laboratory demonstrated that uptake of nutrients by the embryo is significantly less than what is supplied in traditional culture media. Our objective was to determine the impact of reduced nutrient concentrations in culture medium on mouse embryo development, metabolism, and quality as a possible platform for next generation medium formulation. Concentrations of carbohydrates, amino acids, and vitamins could be reduced by 50% with no detrimental effects, but blastocyst development was impaired at 25% of standard nutrient provision (reduced nutrient medium; RN). Addition of pyruvate and L-lactate (+PL) to RN at 50% of standard concentrations restored blastocyst development, hatching, and cell number. In addition, blastocysts produced in RN + PL contained more ICM cells and ATP than blastocysts cultured in our control (100% nutrient) medium; however, metabolic activity was altered. Similarly, embryos produced in the RN medium with elevated (50% control) concentrations of pyruvate and lactate in the first step medium and EAA and Glu in the second step medium were competent to implant and develop into fetuses at a similar rate as embryos produced in the control medium. This novel approach to culture medium formulation could help define the optimal nutrient requirements of embryos in culture and provide a means of shifting metabolic activity towards the utilization of specific metabolic pathways that may be beneficial for embryo viability. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|