ArticleIn vitro cellular & developmental biology. Animal2016
MLL2 is essential for porcine embryo development in vitro.
Article in In vitro cellular & developmental biology. Animal, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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5 citing papers in PubMed, 9 citations in OpenAlex.
- Review
- A comprehensive review of histone modifications during mammalian oogenesis and early embryo development.Histochemistry and cell biology · 2025Review
- Transcriptomic analysis reveals the dynamic changes of transcription factors during early development of chicken embryo.BMC genomics · 2022Article
- Estrogen receptor alpha (ERα)-mediated coregulator binding and gene expression discriminates the toxic ERα agonist diethylstilbestrol (DES) from the endogenous ERα agonist 17β-estradiol (E2).Cell biology and toxicology · 2020Article
- Histone methyltransferase KMT2D sustains prostate carcinogenesis and metastasis via epigenetically activating LIFR and KLF4.Oncogene · 2018Article
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Authors and funding
4 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Several germ cell-specific transcription factors essential for ovarian formation and folliculogenesis have been identified and studied. However, their function during early embryo development has been poorly explored. In this study, we investigated the role of mixed-lineage leukemia protein 2 (MLL2) in the development of porcine preimplantation embryos. To explore the function of MLL2 in porcine embryo development, expression and localization of MLL2 were assessed by qRT-PCR and immunofluorescence assays. Results showed that expression of MLL2 was significantly reduced after the four-cell stage. However, immunofluorescence results showed that MLL2 only localized in the nucleus of blastocysts, revealing a potential role of MLL2 in regulating the gene expression in the blastocyst stage. Knockdown of Mll2 by double-stranded RNA (dsRNA) caused a reduction in MLL2 signal in porcine blastocyst cells and in blastocyst formation. No significant differences in the cleavage and morula stages were observed. The mechanism of MLL2 regulation in blastocysts was assessed by assaying the trimethylation of histone 3 at lysine 4 (H3K4m3). MLL2 knockdown significantly reduced H3K4m3 in the nucleus and further reduced expression of Sox2 and Magoh genes. In conclusion, MLL2 is essential for porcine embryo development by the regulation of methylation of H3K4 in vitro.
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