Dynamic Changes in the Expression of Protein Tyrosine Phosphatases During Preimplantation Mouse Development: Semi-Quantification by Real-Time PCR

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Protein tyrosine phosphatase (PTP) expression was examined in preimplantation mouse embryos. We previously reported that SHP-2, LAR, PTPT9, SHP-1, and mRPTPB were expressed in preimplantation mouse embryos. Here, we examined changes in the expression levels of these PTPs during preimplantation development. cDNA was obtained by reverse transcription of embryo mRNA, amplified with 10 PCR cycles, and then subjected to real-time fluorescence-monitored PCR. Experiments with an mRNA dilution series revealed that the data obtained matched the quantities of mRNA used. The measurements obtained with real-time fluorescence-monitored PCR showed that the expression of each PTP mRNA changed dynamically, and that each had a different expression pattern. This suggests that PTPs are involved in the regulation of growth and differentiation during preimplantation development.
日本繁殖生物学会の論文