ArticleFrontiers in cell and developmental biology2022
Condensed Mitochondria Assemble Into the Acrosomal Matrix During Spermiogenesis.
Article in Frontiers in cell and developmental biology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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12 citing papers in PubMed, 16 citations in OpenAlex.
- Loss-of-Function SSFA2 Variants Disrupt Fertility Through Impaired Acrosome Formation and Sperm Function.Andrology · 2026Article
- Dnajc5b contributes to male fertility by maintaining the mitochondrial functions and autophagic homeostasis during spermiogenesis.Cellular and molecular life sciences : CMLS · 2025Article
- Demystifying the functions of the mitochondrial ORFan proteins in bivalves with doubly uniparental inheritance.Biology letters · 2025Article
- Sertoli cells as a hub in testicular development and male reproductive.Frontiers in cell and developmental biology · 2025Review
- Mitochondrial epigenetics brings new perspectives on doubly uniparental inheritance in bivalves.Scientific reports · 2024Article
- Membrane-mediated modulation of mitochondrial physiology by terahertz waves.Biomedical optics express · 2024Article
- Elucidating the Role of OXPHOS Variants in Asthenozoospermia: Insights from Whole Genome Sequencing and an In Silico Analysis.International journal of molecular sciences · 2024Article
- MicroRNAs and Their Associated Genes Regulating the Acrosome Reaction in Sperm of High- versus Low-Fertility Holstein Bulls.Animals : an open access journal from MDPI · 2024Article
- The critical role of cardiolipin in metazoan differentiation, development, and maturation.Developmental dynamics : an official publication of the American Association of Anatomists · 2023Review
- Inhibition of Mitochondrial Uncoupling Proteins Arrests Human Spermatozoa Motility without Compromising Viability.Antioxidants (Basel, Switzerland) · 2023Article
- Inceptor facilitates acrosomal vesicle formation in spermatids and is required for male fertility.Frontiers in cell and developmental biology · 2023Article
- Ectopic expression of the mitochondrial protein COXFA4L3 in human sperm acrosome and its potential application in the selection of male infertility treatments.Reproductive medicine and biologyArticle
Corrections and comments
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Authors and funding
8 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Mammalian spermatogenesis is associated with the transient appearance of condensed mitochondria, a singularity of germ cells with unknown function. Using proteomic analysis, respirometry, and electron microscopy with tomography, we studied the development of condensed mitochondria. Condensed mitochondria arose from orthodox mitochondria during meiosis by progressive contraction of the matrix space, which was accompanied by an initial expansion and a subsequent reduction of the surface area of the inner membrane. Compared to orthodox mitochondria, condensed mitochondria respired more actively, had a higher concentration of respiratory enzymes and supercomplexes, and contained more proteins involved in protein import and expression. After the completion of meiosis, the abundance of condensed mitochondria declined, which coincided with the onset of the biogenesis of acrosomes. Immuno-electron microscopy and the analysis of sub-cellular fractions suggested that condensed mitochondria or their fragments were translocated into the lumen of the acrosome. Thus, it seems condensed mitochondria are formed from orthodox mitochondria by extensive transformations in order to support the formation of the acrosomal matrix.
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