Evidence mapPaperPMID 41952009Full record

ArticleJournal of assisted reproduction and genetics2026

Pluripotency and cellular differentiation miRNAs expressed in human blastocoel fluid are associated with embryo quality.

Rebeca González-Fernández, Andrea Martínez-López, Jairo Hernández, Pablo Martín-Vasallo, Angela Palumbo, Julio Ávila

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Article in Journal of assisted reproduction and genetics, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

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2 · The registry

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4 · The record

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5 · Who and what money

Authors and funding

6 authors.

Rebeca González-FernándezLaboratorio de Biología del Desarrollo, UD de Bioquímica y Biología Molecular, Universidad de La Laguna, San Cristóbal de La Laguna, Spain. refernan@ull.edu.es.
Andrea Martínez-LópezLaboratorio de Biología del Desarrollo, UD de Bioquímica y Biología Molecular, Universidad de La Laguna, San Cristóbal de La Laguna, Spain.
Jairo HernándezCentro de Asistencia a la Reproducción Humana de Canarias, San Cristóbal de La Laguna, Spain.
Pablo Martín-VasalloLaboratorio de Biología del Desarrollo, UD de Bioquímica y Biología Molecular, Universidad de La Laguna, San Cristóbal de La Laguna, Spain.
Angela PalumboCentro de Asistencia a la Reproducción Humana de Canarias, San Cristóbal de La Laguna, Spain. apalumbo@fivap.com.
Julio ÁvilaLaboratorio de Biología del Desarrollo, UD de Bioquímica y Biología Molecular, Universidad de La Laguna, San Cristóbal de La Laguna, Spain.

Funding

Gobierno de Canarias (cofounded by FEDER) Grant number ProID2020010073
6 · The paper itself

Abstract

purposeTo analyse the microRNAs (miRNAs) present in blastocoel fluid (BF) and assess the relationship with blastocyst quality.

methodsSeventy-two blastocysts from 57 women (25 IVF patients and 32 oocyte donors) undergoing IVF in a single private Fertility Center were included. Blastocyst quality was evaluated using Gardner´s classification. BF was collected prior to cryopreservation. MiRNA sequencing (miRNA-Seq) was employed to analyse pooled blastocoel fluid from 8 good-quality (GQ) and 8 medium/poor-quality embryos (PQ). Differential expression of miRNAs was validated in individual BF by relative quantitative real-time PCR (qRT-PCR) in 18 good-quality and 38 medium/poor-quality embryos. Target genes were identified using in silico prediction algorithms.

resultsUsing miRNA-seq we identified 85 mature and 75 immature miRNAs and selected 16 miRNAs differentially expressed in GQ and PQ embryos, with a read count exceeding 10. At the p < 0.05 level, eight miRNAs were upregulated in GQ compared to PQ embryos (miR-7107-5p, miR-4687-3p, miR-6743-5p, miR-4651, miR-6503, miR-4516, miR-4472.2, miR-409) and 8 were upregulated in PQ compared to GQ embryos (miR-6805-3p, miR-663a, miR-4438, miR-6068, miR-1182, miR-2682, miR-1908, miR-4754). In individual BF, qRT-PCR identified significantly lower expression of miR-663a, miR-7107-5p and miR-4687-3p in GQ embryos. Hatched GQ embryos had lower expression of miR-6805-3p, miR-663a and miR-4651 compared to unhatched GQ embryos. In silico predicted target genes were associated with cellular growth and differentiation, apoptosis, pluripotency, and embryonic development.

conclusionSpecific expression profiles of BF microRNAs involved in pluripotency and cellular differentiation may be associated with blastocyst quality and hatching and represent potential biomarkers for successful embryo transfer.

Indexed as

BlastocystCell DifferentiationEmbryonic DevelopmentMicroRNAsAdultCryopreservationFemaleFertilization in VitroGene Expression Regulation, DevelopmentalHumansOocytesPregnancyMicroRNAsBlastocoel fluidCellular differentiationEmbryo qualityEmbryo transfermiRNAPluripotency

Identifiers

PMID41952009
PMCPMC13319289

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