ArticleFrontiers in cell and developmental biology2023
Inceptor facilitates acrosomal vesicle formation in spermatids and is required for male fertility.
Article in Frontiers in cell and developmental biology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed, 8 citations in OpenAlex.
- ELAPOR1 mediated vesicle traffic is required for acrosome biogenesis and male fertility in mice.Cellular and molecular life sciences : CMLS · 2026Article
- ELAPOR1 regulates VPS54-mediated GARP complex formation and proacrosomal vesicle fusion during spermatogenesis.Theranostics · 2026Article
- ELAPOR1 is a copper-dependent tethering factor driving proacrosomal vesicle fusion during acrosome biogenesis.Proceedings of the National Academy of Sciences of the United States of America · 2025Article
- Inceptor binds to and directs insulin towards lysosomal degradation in β cells.Nature metabolism · 2024Article
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Authors and funding
9 authors at 5 institutions in 1 country.
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Abstract
Spermatogenesis is a crucial biological process that enables the production of functional sperm, allowing for successful reproduction. Proper germ cell differentiation and maturation require tight regulation of hormonal signals, cellular signaling pathways, and cell biological processes. The acrosome is a lysosome-related organelle at the anterior of the sperm head that contains enzymes and receptors essential for egg-sperm recognition and fusion. Even though several factors crucial for acrosome biogenesis have been discovered, the precise molecular mechanism of pro-acrosomal vesicle formation and fusion is not yet known. In this study, we investigated the role of the insulin inhibitory receptor (inceptor) in acrosome formation. Inceptor is a single-pass transmembrane protein with similarities to mannose-6-phosphate receptors (M6PR). Inceptor knockout male mice are infertile due to malformations in the acrosome and defects in the nuclear shape of spermatozoa. We show that inceptor is expressed in early spermatids and mainly localizes to vesicles between the Golgi apparatus and acrosome. Here we show that inceptor is an essential factor in the intracellular transport of
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