ArticleEpigenetics & chromatin2021
Distinct role of histone chaperone Asf1a and Asf1b during fertilization and pre-implantation embryonic development in mice.
Article in Epigenetics & chromatin, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
10 citing papers in PubMed, 10 citations in OpenAlex.
- ASF1A: A versatile histone chaperone bridging chromatin dynamics, disease mechanisms and clinical potential (Review).Experimental and therapeutic medicine · 2026Review
- Divergent selection for litter size variability affects RNA cargo in oviductal extracellular vesicles related to embryonic development and survival.Biological research · 2025Article
- Physiology and molecular biology of plants : an international journal of functional plant biology · 2025Article
- Assessment of differentially expressed genes from in vitro matured human oocytes: A bioinformatics approach.JBRA assisted reproduction · 2024Article
- Comparative Review on Cancer Pathology from Aberrant Histone Chaperone Activity.International journal of molecular sciences · 2024Review
- Chromatin Modifier EP400 Regulates Oocyte Quality and Zygotic Genome Activation in Mice.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2024Article
- Regulation of endogenous retroviruses in murine embryonic stem cells and early embryos.Journal of molecular cell biology · 2024Review
- Single-cell RNA-seq and single-cell bisulfite-sequencing reveal insights into yak preimplantation embryogenesis.The Journal of biological chemistry · 2024Article
- Evaluate the developmental competence of human 8-cell embryos by single-cell RNA sequencing.Reproduction & fertility · 2023Article
- Paralogous Genes Involved in Embryonic Development: Lessons from the Eye and Other Tissues.Genes · 2022Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
8 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundAsf1 is a well-conserved histone chaperone that regulates multiple cellular processes in different species. Two paralogous genes, Asf1a and Asf1b exist in mammals, but their role during fertilization and early embryogenesis remains to be investigated further.
methodsWe analyzed the dynamics of histone chaperone Asf1a and Asf1b in oocytes and pre-implantation embryos in mice by immunofluorescence and real-time quantitative PCR, and further investigated the role of Asf1a and Asf1b during fertilization and pre-implantation development by specific Morpholino oligos-mediated knock down approach.
resultsImmunofluorescence with specific antibodies revealed that both Asf1a and Asf1b were deposited in the nuclei of fully grown oocytes, accumulated abundantly in zygote and 2-cell embryonic nuclei, but turned low at 4-cell stage embryos. In contrast to the weak but definite nuclear deposition of Asf1a, Asf1b disappeared from embryonic nuclei at morula and blastocyst stages. The knockdown of Asf1a and Asf1b by specific Morpholino oligos revealed that Asf1a but not Asf1b was required for the histone H3.3 assembly in paternal pronucleus. However, knockdown of either Asf1a or Asf1b expression decreased developmental potential of pre-implantation embryos. Furthermore, while Asf1a KD severely reduced H3K56 acetylation level and the expression of Oct4 in blastocyst stage embryos, Asf1b KD almost eliminated nuclear accumulation of proliferating cell marker-PCNA in morula stage embryos. These results suggested that histone chaperone Asf1a and Asf1b play distinct roles during fertilization and pre-implantation development in mice.
conclusionsOur data suggested that both Asf1a and Asf1b are required for pre-implantation embryonic development. Asf1a regulates H3K56ac levels and Oct4 expression, while Asf1b safeguards pre-implantation embryo development by regulating cell proliferation. We also showed that Asf1a, but not Asf1b, was necessary for the assembly of histone H3.3 in paternal pronuclei after fertilization.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.