ArticleReproductive biology and endocrinology : RB&E2011
Expression and localization of aquaporin 1b during oocyte development in the Japanese eel (Anguilla japonica).
Article in Reproductive biology and endocrinology : RB&E, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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10 citing papers in PubMed, 25 citations in OpenAlex.
- Deciphering the miRNA-TF-mRNA Regulatory Network Underlying Oocyte Maturation in Orange-Spotted Grouper (Animals : an open access journal from MDPI · 2026Article
- Functional Evolution of Clustered Aquaporin Genes Reveals Insights into the Oceanic Success of Teleost Eggs.Molecular biology and evolution · 2023Article
- Neurohypophysial and paracrine vasopressinergic signaling regulates aquaporin trafficking to hydrate marine teleost oocytes.Frontiers in endocrinology · 2023Article
- The induction of oocyte maturation and ovulation in the European eel (Frontiers in physiology · 2023Article
- Aquaporin expression and cholesterol content in eel swimbladder tissue.Journal of fish biology · 2022Article
- Aquaporins and Animal Gamete Cryopreservation: Advances and Future Challenges.Animals : an open access journal from MDPI · 2022Review
- Article
- Water homeostasis in the fish oocyte: new insights into the role and molecular regulation of a teleost-specific aquaporin.Fish physiology and biochemistry · 2013Review
- Mechanism of oocyte maturation and ovulation and its application to seed production in the Japanese eel.Fish physiology and biochemistry · 2013Review
- Role of Aquaporins during Teleost Gametogenesis and Early Embryogenesis.Frontiers in physiology · 2011Article
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Authors and funding
8 authors at 4 institutions in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
To elucidate the molecular mechanisms underling hydration during oocyte maturation, we characterized the structure of Japanese eel (Anguilla japonica) novel-water selective aquaporin 1 (AQP1b) that thought to be involved in oocyte hydration. The aqp1b cDNA encodes a 263 amino acid protein that includes the six potential transmembrane domains and two Asn-Pro-Ala motifs. Reverse transcription-polymerase chain reaction showed transcription of Japanese eel aqp1b in ovary and testis but not in the other tissues. In situ hybridization studies with the eel aqp1b cRNA probe revealed intense eel aqp1b signal in the oocytes at the perinucleolus stage and the signals became faint during the process of oocyte development. Light microscopic immunocytochemical analysis of ovary revealed that the Japanese eel AQP1b was expressed in the cytoplasm around the yolk globules which were located in the peripheral region of oocytes during the primary yolk globule stage; thereafter, the immunoreactivity was observed throughout the cytoplasm of oocyte as vitellogenesis progressed. The immunoreactivity became localized around the large membrane-limited yolk masses which were formed by the fusion of yolk globules during the oocyte maturation phase. These results together indicate that AQP1b, which is synthesized in the oocyte during the process of oocyte growth, is essential for mediating water uptake into eel oocytes.
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