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The piRNA protein Asz1 is essential for germ cell and gonad development in zebrafish and exhibits differential necessities in distinct types of germ granules.
PLoS Genet
January 2025
Department of Developmental Biology and Cancer Research, The Hebrew University of Jerusalem Faculty of Medicine, Ein- Kerem Campus, Jerusalem, Israel.
Germ cells are essential for fertility, embryogenesis, and reproduction. Germline development requires distinct types of germ granules, which contains RNA-protein (RNP) complexes, including germ plasm in embryos, piRNA granules in gonadal germ cells, and the Balbiani body (Bb) in oocytes. However, the regulation of RNP assemblies in zebrafish germline development are still poorly understood.
View Article and Find Full Text PDFSingle-cell RNA-seq identifies protracted mouse germline X chromosome reactivation dynamics directed by a PRC2-dependent mechanism.
Dev Cell
January 2025
King's College London, Centre for Gene Therapy and Regenerative Medicine, School of Basic & Medical Biosciences, Faculty of Life Sciences and Medicine, London, UK; King's College London, Guy's Hospital Assisted Conception Unit, Department of Women and Children's Health, School of Life Course and Population Sciences, Faculty of Life Sciences and Medicine, London, UK. Electronic address:
Female primordial germ cells (PGCs) undergo X chromosome reactivation (XCR) during genome-wide reprogramming. XCR kinetics and dynamics are poorly understood at a molecular level. Here, we apply single-cell RNA sequencing and chromatin profiling on germ cells from F mouse embryos, performing a precise appraisal of XCR spanning from migratory-stage PGCs to gonadal germ cells.
View Article and Find Full Text PDFEstrogenic-like compounds severely disturb germ cell formation in Japanese quail.
Biochem Biophys Res Commun
February 2025
Department of Biological Sciences, Faculty of Science, Hokkaido University, Kita 10 Nishi 8, Kita-ku, Sapporo, Hokkaido, 060-0810, Japan.
During avian germ cell formation, primordial germ cells (PGCs) differentiate into prospermatogonia in testicular seminiferous tubules or into oogonia in the ovarian cortex in late-stage embryos. Although estrogenic endocrine-disrupting chemicals (EDCs) have been suggested to affect the differential fate of avian germ cells, there is currently no established method to examine the effects of EDCs on the differentiation potential of germline cells due to large amount of unidentified proteins present in avian germ cells. Regarding reliable molecular probes for the detection of germ cells that differentiated from the PGCs of Japanese quail, the prospermatogonium and oogonium, respectively, integrin beta1 (ITGB1), insulin-like growth factor 2-binding protein 1 (IGF2BP1), and stimulated by retinoic acid 8 (STRA8) were identified as marker proteins by RNA-seq and liquid chromatography tandem mass spectrometry analyses.
View Article and Find Full Text PDFPrenatal exposure to diethylstilbestrol has multigenerational effects on folliculogenesis.
Sci Rep
December 2024
School of BioSciences, The University of Melbourne, Melbourne, 3010, Australia.
Diethylstilbestrol (DES) is an estrogenic endocrine disrupting chemical (EDC) that was prescribed to millions of pregnant women worldwide, leading to increased rates of infertility in the exposed offspring. We have previously demonstrated that this reduced fertility persists for multiple generations in the mouse. However, how altered ovarian function contributes to this infertility is unknown.
View Article and Find Full Text PDFEffect of curcumin on methotrexate-induced ovarian damage and follicle reserve in rats: the role of PARP-1 and P53.
Ann Med
December 2025
Department of Histology and Embryology, Bülent Ecevit University, Zonguldak, Turkey.
Background: Methotrexate (MTX) is an agent used in the treatment of many neoplastic and non-neoplastic diseases and is known to cause oxidative damage in normal tissues. Curcumin (Cur) is a natural polyphenol compound with powerful antioxidant and antiapoptotic effects. In this study we investigate the effects of Cur on MTX-induced ovarian damage.
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