Article ; Online: Multiple roles of endocytosis and autophagy in intracellular remodeling during oocyte-to-embryo transition.
Proceedings of the Japan Academy. Series B, Physical and biological sciences
2022 Volume 98, Issue 5, Page(s) 207–221
Abstract: Fertilization is the starting point for creating new progeny. At this time, the highly differentiated oocyte and sperm fuse to form one zygote, which is then converted into a pluripotent early embryo. Recent studies have shown that the lysosomal ... ...
Abstract | Fertilization is the starting point for creating new progeny. At this time, the highly differentiated oocyte and sperm fuse to form one zygote, which is then converted into a pluripotent early embryo. Recent studies have shown that the lysosomal degradation system via autophagy and endocytosis plays important roles in the remodeling of intracellular components during oocyte-to-embryo transition. For example, in Caenorhabditis elegans, zygotes show high endocytic activity, and some populations of maternal membrane proteins are selectively internalized and delivered to lysosomes for degradation. Furthermore, fertilization triggers selective autophagy of sperm-derived paternal mitochondria, which establishes maternal inheritance of mitochondrial DNA. In addition, it has been shown that autophagy via liquid-liquid phase separation results in the selective degradation of some germ granule components, which are distributed to somatic cells of early embryos. This review outlines the physiological functions of the lysosomal degradation system and its molecular mechanisms in C. elegans and mouse embryos. |
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MeSH term(s) | Animals ; Autophagy/genetics ; Caenorhabditis elegans/genetics ; Embryo, Nonmammalian/metabolism ; Endocytosis ; Fertilization/physiology ; Mice ; Oocytes |
Language | English |
Publishing date | 2022-05-11 |
Publishing country | Japan |
Document type | Journal Article ; Review |
ZDB-ID | 161781-3 |
ISSN | 1349-2896 ; 0386-2208 |
ISSN (online) | 1349-2896 |
ISSN | 0386-2208 |
DOI | 10.2183/pjab.98.013 |
Database | MEDical Literature Analysis and Retrieval System OnLINE |
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