Developmental expression of the inositol 1,4,5-trisphosphate receptor and structural changes in the endoplasmic reticulum during oogenesis and meiotic maturation of Xenopus laevis

Shoen Kume, Akitsugu Yamamoto, Takafumi Inoue, Akira Muto, Hideyuki Okano, Katsuhiko Mikoshiba

Research output: Contribution to journalArticle

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Abstract

To study the development of the calcium release mechanism, we examined the temporal and spatial expression of inositol 1,4,5-trisphosphate receptor (IP3R) during the oogenesis and meiotic maturation of Xenopus laevis. Observation of a series of fixed samples by immunofluorescence microscopy revealed a relocalization of Xenopus IP3R (XIP3R)-positive structures during meiotic maturation. We visualized the endoplasmic reticulum (ER) using ER-sensitive dye, DiI, by observation under confocal laser scanning microscopy. Time-lapse visualization of the living oocytes revealed that while the ER of immature fully grown oocytes underwent relatively little movement, the ER of maturing oocytes and mature eggs moved rapidly. A possible role for the increase of ER mobility in the dynamic redistribution of XIP3R during oocyte maturation is also discussed.

Original languageEnglish
Pages (from-to)228-239
Number of pages12
JournalDevelopmental Biology
Volume182
Issue number2
DOIs
Publication statusPublished - 1997 Feb 15
Externally publishedYes

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Inositol 1,4,5-Trisphosphate Receptors
Oogenesis
Xenopus laevis
Endoplasmic Reticulum
Oocytes
Xenopus
Observation
Fluorescence Microscopy
Confocal Microscopy
Eggs
Coloring Agents
Calcium

ASJC Scopus subject areas

  • Developmental Biology

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Developmental expression of the inositol 1,4,5-trisphosphate receptor and structural changes in the endoplasmic reticulum during oogenesis and meiotic maturation of Xenopus laevis. / Kume, Shoen; Yamamoto, Akitsugu; Inoue, Takafumi; Muto, Akira; Okano, Hideyuki; Mikoshiba, Katsuhiko.

In: Developmental Biology, Vol. 182, No. 2, 15.02.1997, p. 228-239.

Research output: Contribution to journalArticle

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