Modern investigations of structural and functional organization of oncoviruses are analyzed. The data available in the literature on oncovirus interaction with host cell membrane (adsorption, penetration by endocytosis and fusion, uncoating) as well as the cell and viral receptors are elucidated. The results of the studies on retroviral organization of genome, its integration with cellular genome, transcription and translation are given. The functions of long terminal repeats are described. The characteristic of the end step of life cycle of retroviruses (assembly, budding and maturation) is presented.
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Identification of novel cytoskeleton protein involved in spermatogenic cells and sertoli cells of non-obstructive azoospermia based on microarray and bioinformatics analysis.
BMC Med Genomics
January 2025
Department of Surgery, Faculty of General of Medicine, Koya University, Koya, Kurdistan Region - F.R., KOY45, Iraq.
Background: During mammalian spermatogenesis, the cytoskeleton system plays a significant role in morphological changes. Male infertility such as non-obstructive azoospermia (NOA) might be explained by studies of the cytoskeletal system during spermatogenesis.
Methods: The cytoskeleton, scaffold, and actin-binding genes were analyzed by microarray and bioinformatics (771 spermatogenic cellsgenes and 774 Sertoli cell genes).
Differential Activity and Expression of Proteasome in Seminiferous Epithelium During Mouse Spermatogenesis.
Int J Mol Sci
January 2025
Laboratorio de Biología de la Reproducción, Departamento Biomédico, Facultad de Ciencias de la Salud, Universidad de Antofagasta, Antofagasta 1240000, Chile.
Proteasome-mediated protein degradation is essential for maintaining cellular homeostasis, particularly during spermatogenesis, where extensive cellular transformations, such as spermatid differentiation, require precise protein turnover. A key player in this process is the ubiquitin-proteasome system (UPS). This study aimed to investigate proteasome enzymatic activity at different stages of the spermatogenic cycle within the seminiferous tubules of mice and explore the regulatory mechanisms that influence its proteolytic function.
View Article and Find Full Text PDFChromosome-scale genome dynamics reveal signatures of independent haplotype evolution in the ancient asexual mite .
Sci Adv
January 2025
Institute of Zoology, University of Cologne, Cologne, Germany.
Some unique asexual species persist over time and contradict the consensus that sex is a prerequisite for long-term evolutionary survival. How they escape the dead-end fate remains enigmatic. Here, we generated a haplotype-resolved genome assembly on the basis of a single individual and collected genomic data from worldwide populations of the parthenogenetic diploid oribatid mite to identify signatures of persistence without sex.
View Article and Find Full Text PDFFabrication of Multifunctional Three-Component Supramolecular Nano-Biscuits via Two Macrocycles-Involved Self-Assembly for Rice, Citrus and Kiwifruit Protections.
Adv Sci (Weinh)
January 2025
State Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for Research and Development of Fine Chemicals of Guizhou University, Guiyang, 550025, China.
Bacterial plant diseases, worsened by biofilm-mediated resistance, are increasingly threatening global food security. Numerous attempts have been made to develop agrochemicals that inhibit biofilms, however, their ineffective foliar deposition and difficulty in removing mature biofilms remain major challenges. Herein, multifunctional three-component supramolecular nano-biscuits (NI6R@CB[7]@β-CD) are successfully engineered via ordered self-assembly between two macrocycles [cucurbit[7]uril (CB[7]), β-cyclodextrin (β-CD)] and (R)-2-naphthol-based bis-imidazolium bromide salt (NI6R).
View Article and Find Full Text PDFCFAP65 is essential for C2a projection integrity in axonemes: implications for organ-specific ciliary dysfunction and infertility.
Cell Mol Life Sci
January 2025
State Key Laboratory of Reproductive Medicine and Offspring Health, Department of Histology and Embryology, School of Basic Medical Sciences, Nanjing Medical University, Nanjing, 211166, China.
Defects in motile cilia and flagella lead to motile ciliopathies, including primary ciliary dyskinesia (PCD), which manifests as multi-organ dysfunction such as hydrocephalus, infertility, and respiratory issues. CFAP65 variants are a common cause of male infertility, but its localization and function have remained unclear. In this study, we systematically evaluated CFAP65's role using Cfap65 knockout mice and human patients with CFAP65 variants.
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