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Table 3 Impact of oocyte vitrification on expression in humans

From: What impact does oocyte vitrification have on epigenetics and gene expression?

References

Materials

Number of oocytes and embryos

Technology of assessment

Studied sequences

Conclusions

D’Aurora et al. [122]

Supernumerary MII, fresh or vitrified

16 fresh, 16 vitrified

RTqPCR

DCTN3, DCTN1, 2, and 6, PLK1

No significant differences.

Monzo et al. [121]

Unfertilized MII (24–78 h post-fertilization), fresh or vitrified

17 fresh, 36 vitrified

Microarray RTqPCR validation

Global analysis (Affymetrix, HG-U133 Plus2.0)

3 genes (SLC38a2, TXNRD1, GJA1)

Significant differential expression between the non-cryopreserved and vitrified MII oocyte pools (608 genes with 509 down and 99 upregulated). Many genes of the ubiquitination pathway were downregulated.

Chamayou et al. [123]

Supernumerary MII, fresh or vitrified

15 fresh, 15 vitrified

RTqPCR

NAP1L1, TOP1, H1F0H1, SMC, SCC3, RAD21, SMC1A, SMC1B, STAG3, REC8, CLTA, MAPK6, CKS2, DPPA3, OCT4, FOXJ2

Overall decrease in the expression after oocyte vitrification with 63.3% of mRNA content maintained after vitrification.

Di Pietro et al. [124]

Supernumerary MII, fresh or vitrified

10 fresh, 15 vitrified

RTqPCR

HPRT, GAPDH, CYCLOPHILIN, BMP15, GDF9, FIGLA, OCT4, et TAF4B

No significant differences.

  1. MII oocyte at metaphase II stage, RT-qPCR quantitative reverse transcription PCR