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Relevant bibliographies by topics / Transzonal projections

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Journal articles

Academic literature on the topic 'Transzonal projections'

Author: Grafiati

Published: 25 May 2024

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Journal articles on the topic "Transzonal projections"

1

Perecin, Felipe. "412 Germ and somatic cell interactions during oocyte development and maturation." Journal of Animal Science 98, Supplement_4 (2020): 189. http://dx.doi.org/10.1093/jas/skaa278.349.

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Abstract Ovarian follicle development and oocyte competence acquisition is dependent upon continuous interactions between the somatic cells and the oocyte. Interactions between these cell types include bidirectional paracrine signaling and the exchange of small molecules, such and amino acids and cyclic nucleotides, through gap junctions located at the end of transzonal projections (TZPs). In the last decade, additional mechanisms of cell-to-cell interactions within the ovarian follicle were described. These mechanisms include the movement of small extracellular vesicles (EVs) within the folli

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2

Stoecklein, K. S., M. S. Ortega, L. Spate, C. N. Murphy, and R. S. Prather. "188 Improvement of bovine oocyte maturation invitro through cytokine supplementation." Reproduction, Fertility and Development 32, no. 2 (2020): 222. http://dx.doi.org/10.1071/rdv32n2ab188.

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Oocyte competence is one of the key factors determining the proportion of embryos that develop to the blastocyst stage. There is vast evidence that IVM oocytes exhibit less developmental potential than their invivo counterparts. Here, we tested whether supplementation of three cytokines [FGF2 (40 ngmL−1), LIF (20ngmL−1), and IGF1 (20 ngmL−1), termed FLI] improved oocyte maturation, and as a consequence, preimplantation development of bovine embryos invitro. In the first experiment, cumulus-oocyte complexes (COCs) were collected from abattoir-derived ovaries and placed in maturation medium,±FLI

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3

Feng, Xiaoyi, Chongyang Li, Hang Zhang, et al. "Heat-Stress Impacts on Developing Bovine Oocytes: Unraveling Epigenetic Changes, Oxidative Stress, and Developmental Resilience." International Journal of Molecular Sciences 25, no. 9 (2024): 4808. http://dx.doi.org/10.3390/ijms25094808.

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Extreme temperature during summer may lead to heat stress in cattle and compromise their productivity. It also poses detrimental impacts on the developmental capacity of bovine budding oocytes, which halt their fertility. To mitigate the adverse effects of heat stress, it is necessary to investigate the mechanisms through which it affects the developmental capacity of oocytes. The primary goal of this study was to investigate the impact of heat stress on the epigenetic modifications in bovine oocytes and embryos, as well as on oocyte developmental capacity, reactive oxygen species, mitochondri

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4

Chen, Mingyue, Chengyong He, Kongyang Zhu, et al. "Resveratrol ameliorates polycystic ovary syndrome via transzonal projections within oocyte-granulosa cell communication." Theranostics 12, no. 2 (2022): 782–95. http://dx.doi.org/10.7150/thno.67167.

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5

Clarke, Hugh J. "History, origin, and function of transzonal projections: the bridges of communication between the oocyte and its environment." Animal Reproduction 15, no. 3 (2018): 215–23. http://dx.doi.org/10.21451/1984-3143-ar2018-0061.

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6

Lee, Seunghoon, Yuuki Hiradate, Yumi Hoshino, Yeoung-gyu Ko, Kentaro Tanemura, and Eimei Sato. "Localization and quantitative analysis of Cx43 in porcine oocytes during in vitro maturation." Zygote 24, no. 3 (2015): 364–70. http://dx.doi.org/10.1017/s0967199415000271.

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SummaryMany studies of the main gap junction protein, Cx43, have been conducted in porcine oocyte research, but they have been limited to investigations of cumulus–oocyte complexes (COCs). In this study, we verified Cx43 not in COCs, but in porcine oocytes during maturation, and conducted a quantitative time course analysis. The location and dynamics of Cx43 were examined by immunocytochemistry and western blotting, respectively. COCs were cultured in NCSU23 medium and processed for immunocytochemistry and western blotting at 0, 14, 28, and 42 h after denuding. A Cx43 signal was detected on oo

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7

Robert, Claude. "Nurturing the egg: the essential connection between cumulus cells and the oocyte." Reproduction, Fertility and Development 34, no. 2 (2022): 149. http://dx.doi.org/10.1071/rd21282.

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The determinants of oocyte quality remain uncertain. Under suitable conditions, which have yet to be defined, the gamete grows and acquires the competence to resume meiosis, be fertilised and undergo embryonic development at least beyond genome activation, after which the blastomere is autonomous enough to adapt to the specificity of its environment. This review describes the central role played by the oocyte in reproductive success and how communication between cumulus cells and the oocyte are essential to proper oogenesis and the quality of the resulting gamete. While most attempts to improv

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8

Crozet, Flora, Gaëlle Letort, Rose Bulteau, et al. "Filopodia-like protrusions of adjacent somatic cells shape the developmental potential of oocytes." Life Science Alliance 6, no. 6 (2023): e202301963. http://dx.doi.org/10.26508/lsa.202301963.

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The oocyte must grow and mature before fertilization, thanks to a close dialogue with the somatic cells that surround it. Part of this communication is through filopodia-like protrusions, called transzonal projections (TZPs), sent by the somatic cells to the oocyte membrane. To investigate the contribution of TZPs to oocyte quality, we impaired their structure by generating a full knockout mouse of the TZP structural component myosin-X (MYO10). Using spinning disk and super-resolution microscopy combined with a machine-learning approach to phenotype oocyte morphology, we show that the lack ofM

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9

Xu, Rui, Menghao Pan, Lu Yin, et al. "C-Type Natriuretic Peptide Pre-Treatment Improves Maturation Rate of Goat Oocytes by Maintaining Transzonal Projections, Spindle Morphology, and Mitochondrial Function." Animals 13, no. 24 (2023): 3880. http://dx.doi.org/10.3390/ani13243880.

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C-type natriuretic peptide (CNP) is a peptide molecule naturally found in follicles and can be used to extend meiotic resumption and enhance the potential for oocytes to develop. However, the mechanism by which CNP improves goat oocyte quality remains unclear. In this study, cumulus–oocyte complexes (COCs) from goats were pre-treated with CNP prior to IVM, and the results showed that pre-treatment with CNP enhanced goat oocyte maturation. First, we discovered that CNP maintained communication between cumulus cells and oocytes by regulating the transzonal projections (TZPs). We then found that

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10

Nagyová, Eva, Lucie Němcová, and Antonella Camaioni. "Cumulus Extracellular Matrix Is an Important Part of Oocyte Microenvironment in Ovarian Follicles: Its Remodeling and Proteolytic Degradation." International Journal of Molecular Sciences 23, no. 1 (2021): 54. http://dx.doi.org/10.3390/ijms23010054.

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The extracellular matrix (ECM) is an essential structure with biological activities. It has been shown that the ECM influences gene expression via cytoskeletal components and the gene expression is dependent upon cell interactions with molecules and hormones. The development of ovarian follicles is a hormone dependent process. The surge in the luteinizing hormone triggers ovulatory changes in oocyte microenvironment. In this review, we discuss how proteolytic cleavage affects formation of cumulus ECM following hormonal stimulation; in particular, how the specific proteasome inhibitor MG132 aff

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