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Teplitz GM, Lorenzo MS, Cruzans PR, Olea GB, Salamone DF, Bastien A, Robert C, Sirard MA, Lombardo DM. Coculture with porcine luteal cells during in vitro porcine oocyte maturation affects lipid content, cortical reaction and zona pellucida ultrastructure. Reprod Fertil Dev 2024; 36:NULL. [PMID: 38096792 DOI: 10.1071/rd23150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2023] [Accepted: 11/28/2023] [Indexed: 01/26/2024] Open
Abstract
CONTEXT In pigs, in vitro fertilisation (IVF) is associated with high polyspermy rates, and for this reason, in vitro embryo production (IVP) is still an inefficient biotechnology. Coculture with somatic cells is an alternative to improve suboptimal in vitro maturation (IVM) conditions. AIM This study was conducted to test a coculture system of porcine luteal cells (PLC) and cumulus-oocyte complexes (COC) to improve oocyte metabolism. METHODS COC were matured in vitro with PLC. Oocyte lipid content, mitochondrial activity, zona pellucida (ZP) digestibility and pore size, cortical reaction and in vitro embryo development were assessed. KEY RESULTS Coculture reduced cytoplasmic lipid content in the oocyte cytoplasm without increasing mitochondrial activity. Although ZP digestibility and ZP pore number were not different between culture systems, ZP pores were smaller in the coculture. Coculture impacted the distribution of cortical granules as they were found immediately under the oolemma, and more of them had released their content in the ZP. Coculture with porcine luteal cells during IVM increased monospermic penetration and embryo development after IVF. CONCLUSIONS The coculture of COC with PLC affects the metabolism of the oocyte and benefits monospermic penetration and embryo development. IMPLICATIONS The coculture system with PLC could be an alternative for the conventional maturation medium in pigs.
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Affiliation(s)
- G M Teplitz
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2290, Buenos Aires C1425FQB, Argentina; and Universidad de Buenos Aires, Facultad de Ciencias Veterinarias, Instituto de Investigación y Tecnología en Reproducción Animal, Cátedra de Histología y Embriología, Chorroarín 280, Buenos Aires C1427CWO, Argentina
| | - M S Lorenzo
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2290, Buenos Aires C1425FQB, Argentina; and Universidad de Buenos Aires, Facultad de Ciencias Veterinarias, Instituto de Investigación y Tecnología en Reproducción Animal, Cátedra de Histología y Embriología, Chorroarín 280, Buenos Aires C1427CWO, Argentina
| | - P R Cruzans
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2290, Buenos Aires C1425FQB, Argentina; and Universidad de Buenos Aires, Facultad de Ciencias Veterinarias, Instituto de Investigación y Tecnología en Reproducción Animal, Cátedra de Histología y Embriología, Chorroarín 280, Buenos Aires C1427CWO, Argentina
| | - G B Olea
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2290, Buenos Aires C1425FQB, Argentina; and Universidad Nacional del Nordeste, Facultad de Ciencias Veterinarias, Cátedra de Histología y Embriología, Cabral 2139, Corrientes C.P. 3400, Argentina
| | - D F Salamone
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2290, Buenos Aires C1425FQB, Argentina; and Laboratorio de Biotecnología Animal, Facultad de Agronomia, Universidad de Buenos Aires, Avenue San Martin 4453, Ciudad Autónoma de Buenos Aires C1417DSE, Argentina
| | - A Bastien
- Departement des Sciences Animales, Centre de Recherche en Reproduction, Développement et Santé Inter-générationnelle (CRDSI). Pavillon Des Services, local 2732, Université Laval, Québec, QC G1V 0A6, Canada
| | - C Robert
- Departement des Sciences Animales, Centre de Recherche en Reproduction, Développement et Santé Inter-générationnelle (CRDSI). Pavillon Des Services, local 2732, Université Laval, Québec, QC G1V 0A6, Canada
| | - M A Sirard
- Departement des Sciences Animales, Centre de Recherche en Reproduction, Développement et Santé Inter-générationnelle (CRDSI). Pavillon Des Services, local 2732, Université Laval, Québec, QC G1V 0A6, Canada
| | - D M Lombardo
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2290, Buenos Aires C1425FQB, Argentina; and Universidad de Buenos Aires, Facultad de Ciencias Veterinarias, Instituto de Investigación y Tecnología en Reproducción Animal, Cátedra de Histología y Embriología, Chorroarín 280, Buenos Aires C1427CWO, Argentina
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Poisson W, Bastien A, Gilbert I, Carrier A, Prunier J, Robert C. Cytogenetic screening of a Canadian swine breeding nucleus using a newly developed karyotyping method named oligo-banding. Genet Sel Evol 2023; 55:47. [PMID: 37430194 DOI: 10.1186/s12711-023-00819-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Accepted: 06/23/2023] [Indexed: 07/12/2023] Open
Abstract
BACKGROUND The frequency of chromosomal rearrangements in Canadian breeding boars has been estimated at 0.91 to 1.64%. These abnormalities are widely recognized as a potential cause of subfertility in livestock production. Since artificial insemination is practiced in almost all intensive pig production systems, the use of elite boars carrying cytogenetic defects that have an impact on fertility can lead to major economic losses. To avoid keeping subfertile boars in artificial insemination centres and spreading chromosomal defects within populations, cytogenetic screening of boars is crucial. Different techniques are used for this purpose, but several issues are frequently encountered, i.e. environmental factors can influence the quality of results, the lack of genomic information outputted by these techniques, and the need for prior cytogenetic skills. The aim of this study was to develop a new pig karyotyping method based on fluorescent banding patterns. RESULTS The use of 207,847 specific oligonucleotides generated 96 fluorescent bands that are distributed across the 18 autosomes and the sex chromosomes. Tested alongside conventional G-banding, this oligo-banding method allowed us to identify four chromosomal translocations and a rare unbalanced chromosomal rearrangement that was not detected by conventional banding. In addition, this method allowed us to investigate chromosomal imbalance in spermatozoa. CONCLUSIONS The use of oligo-banding was found to be appropriate for detecting chromosomal aberrations in a Canadian pig nucleus and its convenient design and use make it an interesting tool for livestock karyotyping and cytogenetic studies.
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Affiliation(s)
- William Poisson
- Département des sciences animales, Faculté des sciences de l'agriculture et de l'alimentation, Université Laval, Québec, QC, Canada
- Centre de recherche en reproduction, développement et santé intergénérationnelle, Québec, QC, Canada
| | - Alexandre Bastien
- Plateforme d'imagerie et microscopie, Institut de biologie intégrative et des systèmes, Université Laval, Québec, QC, Canada
| | - Isabelle Gilbert
- Département des sciences animales, Faculté des sciences de l'agriculture et de l'alimentation, Université Laval, Québec, QC, Canada
- Centre de recherche en reproduction, développement et santé intergénérationnelle, Québec, QC, Canada
| | - Alexandra Carrier
- Département des sciences animales, Faculté des sciences de l'agriculture et de l'alimentation, Université Laval, Québec, QC, Canada
- Centre de recherche en reproduction, développement et santé intergénérationnelle, Québec, QC, Canada
| | - Julien Prunier
- Département de médecine moléculaire, Faculté de médecine, Université Laval, Québec, QC, Canada
| | - Claude Robert
- Département des sciences animales, Faculté des sciences de l'agriculture et de l'alimentation, Université Laval, Québec, QC, Canada.
- Centre de recherche en reproduction, développement et santé intergénérationnelle, Québec, QC, Canada.
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3
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Dubuc K, Marchais M, Gilbert I, Bastien A, Nenonene KE, Khandjian EW, Viger RS, Delbes G, Robert C. Epitranscriptome marks detection and localization of RNA modifying proteins in mammalian ovarian follicles. J Ovarian Res 2023; 16:90. [PMID: 37165445 PMCID: PMC10170753 DOI: 10.1186/s13048-023-01172-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Accepted: 04/25/2023] [Indexed: 05/12/2023] Open
Abstract
BACKGROUND Most of the resources that support the early development of the embryo are stored in the oocyte. Clearing of maternal resources and activation of the embryonic genome to produce its own mRNA transcripts marks the maternal-to-embryo transition. Dependence on stored mRNA can last from a few hours to several days, depending on animal species. The mechanisms regulating stabilization and recruitment of stored maternal transcripts have not yet been described in full detail but are known to involve reversible polyadenylation and modulation of 3'UTR-mediated elements. RNA epigenetic modifications, new players in this field, have an important role in RNA regulation and stabilization. RESULTS The objectives of this study were first to determine if some of post-transcriptional methylation of stored mRNA is greater in oocytes than in somatic cells. We found that m6A, known to be the most prevalent and involved in various aspects of RNA metabolism and physiological functions, is particularly abundant in porcine oocyte mRNA compared to liver used as a somatic tissue reference. The second objective was to compare the epitranscriptome machinery, such as methyltransferases ("writers"), binding proteins ("readers") and demethylases ("erasers") catalyzing the different process, in follicles and oocytes of different mammalian species by immunofluorescence and confocal microscopy. The expression and localization patterns of these proteins differ between mice, pigs and cows ovaries and oocytes. m5C-associated proteins were generally less abundant. In contrast, m6A-associated proteins were expressed strongly during the early and late stages of folliculogenesis. Transzonal projections were found to contain more granules bearing the m5C mark in mice but both m5C and m6A methylation marks in association with mature oocytes of pigs and cows. Eraser proteins showed the greatest interspecies diversity in terms of distribution in the germinal tissues. CONCLUSIONS So far, few studies have looked at the oocyte and ovarian epitranscriptomic profile. Our findings indicate that a hitherto unrecognized species-specific layer of transcript regulation occurs at the RNA level and might be consequential during the oocyte transcriptional silencing period.
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Affiliation(s)
- Karine Dubuc
- Centre de Recherche en reproduction, développement et santé intergénérationnelle, Université Laval, Québec, QC, Canada
- Département des sciences animales, Université Laval, Québec, QC, Canada
| | - Mathilde Marchais
- Centre de Recherche en reproduction, développement et santé intergénérationnelle, Université Laval, Québec, QC, Canada
- Département des sciences animales, Université Laval, Québec, QC, Canada
| | - Isabelle Gilbert
- Centre de Recherche en reproduction, développement et santé intergénérationnelle, Université Laval, Québec, QC, Canada
- Département des sciences animales, Université Laval, Québec, QC, Canada
| | - Alexandre Bastien
- Centre de Recherche en reproduction, développement et santé intergénérationnelle, Université Laval, Québec, QC, Canada
- Département des sciences animales, Université Laval, Québec, QC, Canada
| | - Karen E Nenonene
- Centre de Recherche en reproduction, développement et santé intergénérationnelle, Université Laval, Québec, QC, Canada
- Département des sciences animales, Université Laval, Québec, QC, Canada
| | - Edward W Khandjian
- Département de psychiatrie et de neurosciences, Faculté de médecine, Université Laval, Québec, QC, Canada
| | - Robert S Viger
- Centre de Recherche en reproduction, développement et santé intergénérationnelle, Université Laval, Québec, QC, Canada
- Département d'obstétrique, gynécologie et reproduction, Faculté de médecine, Université Laval, Québec, QC, Canada
| | - Géraldine Delbes
- Centre de Recherche en reproduction, développement et santé intergénérationnelle, Université Laval, Québec, QC, Canada
- INRS- Armand-Frappier Santé Biotechnologie, Laval, QC, Canada
| | - Claude Robert
- Centre de Recherche en reproduction, développement et santé intergénérationnelle, Université Laval, Québec, QC, Canada.
- Département des sciences animales, Université Laval, Québec, QC, Canada.
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Alves MBR, Girardet L, Augière C, Moon KH, Lavoie-Ouellet C, Bernet A, Soulet D, Calvo E, Teves ME, Beauparlant CJ, Droit A, Bastien A, Robert C, Bok J, Hinton BT, Belleannée C. Hedgehog signaling regulates Wolffian duct development through the primary cilium†. Biol Reprod 2023; 108:241-257. [PMID: 36525341 PMCID: PMC9930401 DOI: 10.1093/biolre/ioac210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Revised: 11/01/2022] [Accepted: 11/25/2022] [Indexed: 12/23/2022] Open
Abstract
Primary cilia play pivotal roles in embryonic patterning and organogenesis through transduction of the Hedgehog signaling pathway (Hh). Although mutations in Hh morphogens impair the development of the gonads and trigger male infertility, the contribution of Hh and primary cilia in the development of male reproductive ductules, including the epididymis, remains unknown. From a Pax2Cre; IFT88fl/fl knock-out mouse model, we found that primary cilia deletion is associated with imbalanced Hh signaling and morphometric changes in the Wolffian duct (WD), the embryonic precursor of the epididymis. Similar effects were observed following pharmacological blockade of primary cilia formation and Hh modulation on WD organotypic cultures. The expression of genes involved in extracellular matrix, mesenchymal-epithelial transition, canonical Hh and WD development was significantly altered after treatments. Altogether, we identified the primary cilia-dependent Hh signaling as a master regulator of genes involved in WD development. This provides new insights regarding the etiology of sexual differentiation and male infertility issues.
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Affiliation(s)
- Maíra Bianchi Rodrigues Alves
- Faculty of Medicine, Department of Obstetrics, Gynecology and Reproduction, CHU de Québec Research Center (CHUL)—Centre de Recherche en Reproduction, Développement et Santé Intergénérationnelle—Université Laval, Quebec City, QC, Canada
| | - Laura Girardet
- Faculty of Medicine, Department of Obstetrics, Gynecology and Reproduction, CHU de Québec Research Center (CHUL)—Centre de Recherche en Reproduction, Développement et Santé Intergénérationnelle—Université Laval, Quebec City, QC, Canada
| | - Céline Augière
- Faculty of Medicine, Department of Obstetrics, Gynecology and Reproduction, CHU de Québec Research Center (CHUL)—Centre de Recherche en Reproduction, Développement et Santé Intergénérationnelle—Université Laval, Quebec City, QC, Canada
| | - Kyeong Hye Moon
- Department of Anatomy, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Camille Lavoie-Ouellet
- Faculty of Medicine, Department of Obstetrics, Gynecology and Reproduction, CHU de Québec Research Center (CHUL)—Centre de Recherche en Reproduction, Développement et Santé Intergénérationnelle—Université Laval, Quebec City, QC, Canada
| | - Agathe Bernet
- Faculty of Medicine, Department of Obstetrics, Gynecology and Reproduction, CHU de Québec Research Center (CHUL)—Centre de Recherche en Reproduction, Développement et Santé Intergénérationnelle—Université Laval, Quebec City, QC, Canada
| | - Denis Soulet
- Faculty of Pharmacy, Department of Neurosciences, CHU de Québec Research Center (CHUL)—Université Laval, Quebec City, QC, Canada
| | - Ezequiel Calvo
- Faculty of Medicine, Department of Obstetrics, Gynecology and Reproduction, CHU de Québec Research Center (CHUL)—Centre de Recherche en Reproduction, Développement et Santé Intergénérationnelle—Université Laval, Quebec City, QC, Canada
| | - Maria E Teves
- Department of Obstetrics and Gynecology, Virginia Commonwealth University, Richmond, VA, USA
| | - Charles Joly Beauparlant
- Computational Biology Laboratory Research Centre, Faculty of Medicine, Université Laval, Quebec City, QC, Canada
| | - Arnaud Droit
- Computational Biology Laboratory Research Centre, Faculty of Medicine, Université Laval, Quebec City, QC, Canada
| | - Alexandre Bastien
- Faculty of Agriculture and Food Sciences, Department of Animal Sciences—Centre de Recherche en Reproduction, Développement et Santé Intergénérationnelle—Université Laval, Quebec City, QC, Canada
| | - Claude Robert
- Faculty of Agriculture and Food Sciences, Department of Animal Sciences—Centre de Recherche en Reproduction, Développement et Santé Intergénérationnelle—Université Laval, Quebec City, QC, Canada
| | - Jinwoong Bok
- Department of Anatomy, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Barry T Hinton
- Department of Cell Biology, University of Virginia School of Medicine, Charlottesville, VA, USA
| | - Clémence Belleannée
- Faculty of Medicine, Department of Obstetrics, Gynecology and Reproduction, CHU de Québec Research Center (CHUL)—Centre de Recherche en Reproduction, Développement et Santé Intergénérationnelle—Université Laval, Quebec City, QC, Canada
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Karen Nenonene E, Trottier-Lavoie M, Marchais M, Bastien A, Gilbert I, Macaulay AD, Khandjian EW, Maria Luciano A, Lodde V, Viger RS, Robert C. Roles of the cumulus-oocyte transzonal network and the Fragile X protein family in oocyte competence. Reproduction 2023; 165:209-219. [PMID: 36445258 DOI: 10.1530/rep-22-0165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Accepted: 11/28/2022] [Indexed: 11/29/2022]
Abstract
In brief RNA granules travel through the cumulus cell network of transzonal projections which is associated with oocyte developmental competence, and RNA packaging involves RNA-binding proteins of the Fragile X protein family. Abstract The determinants of oocyte developmental competence have puzzled scientists for decades. It is known that follicular conditions can nurture the production of a high-quality oocyte, but the underlying mechanisms remain unknown. Somatic cumulus cells most proximal to the oocyte are known to have cellular extensions that reach across the zona pellucida and contact with the oocyte plasma membrane. Herein, it was found that transzonal projections (TZPs) network quality is associated with developmental competence. Knowing that ribonucleoparticles are abundant within TZPs, the distribution of RNA-binding proteins was studied. The Fragile X-related proteins (FXR1P and FXR2P) and two partnering protein families, namely cytoplasmic FMRP-interacting protein and nuclear FMRP-interacting protein, exhibited distinctive patterns consistent with roles in regulating mRNA packaging, transport, and translation. The expression of green fluorescent protein (GFP)-FMRP fusion protein in cumulus cells showed active granule formation and their transport and transfer through filipodia connecting with neighboring cells. Near the projections' ends was found the cytoskeletal anchoring protein Filamin A and active protein synthesis sites. This study highlights key proteins involved in delivering mRNA to the oocyte. Thus, cumulus cells appear to indeed support the development of high-quality oocytes via the transzonal network.
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Affiliation(s)
- Elolo Karen Nenonene
- Département des sciences animales, Faculté des sciences de l'agriculture et de l'alimentation.,Centre de Recherche en Reproduction, Développement et Santé Intergénérationnelle (CRDSI).,Réseau Québécois en Reproduction (RQR), Université Laval, Québec, Québec, Canada
| | - Mallorie Trottier-Lavoie
- Département des sciences animales, Faculté des sciences de l'agriculture et de l'alimentation.,Centre de Recherche en Reproduction, Développement et Santé Intergénérationnelle (CRDSI).,Réseau Québécois en Reproduction (RQR), Université Laval, Québec, Québec, Canada
| | - Mathilde Marchais
- Département des sciences animales, Faculté des sciences de l'agriculture et de l'alimentation.,Centre de Recherche en Reproduction, Développement et Santé Intergénérationnelle (CRDSI).,Réseau Québécois en Reproduction (RQR), Université Laval, Québec, Québec, Canada
| | - Alexandre Bastien
- Département des sciences animales, Faculté des sciences de l'agriculture et de l'alimentation.,Centre de Recherche en Reproduction, Développement et Santé Intergénérationnelle (CRDSI).,Réseau Québécois en Reproduction (RQR), Université Laval, Québec, Québec, Canada
| | - Isabelle Gilbert
- Département des sciences animales, Faculté des sciences de l'agriculture et de l'alimentation.,Centre de Recherche en Reproduction, Développement et Santé Intergénérationnelle (CRDSI).,Réseau Québécois en Reproduction (RQR), Université Laval, Québec, Québec, Canada
| | - Angus D Macaulay
- Département des sciences animales, Faculté des sciences de l'agriculture et de l'alimentation.,Centre de Recherche en Reproduction, Développement et Santé Intergénérationnelle (CRDSI)
| | - Edouard W Khandjian
- Centre de recherche CERVO, Département de psychiatrie et de neurosciences, Faculté de médecine, Université Laval, Québec, Québec, Canada
| | - Alberto Maria Luciano
- Reproductive and Developmental Biology Laboratory, Department of Veterinary Medicine and Animal Science, University of Milan, Milan, Italy
| | - Valentina Lodde
- Reproductive and Developmental Biology Laboratory, Department of Veterinary Medicine and Animal Science, University of Milan, Milan, Italy
| | - Robert S Viger
- Département d'obstétrique, gynécologie et reproduction, Faculté de médecine, Université Laval, Québec, Québec, Canada.,Centre de Recherche en Reproduction, Développement et Santé Intergénérationnelle (CRDSI).,Réseau Québécois en Reproduction (RQR), Université Laval, Québec, Québec, Canada
| | - Claude Robert
- Département des sciences animales, Faculté des sciences de l'agriculture et de l'alimentation.,Centre de Recherche en Reproduction, Développement et Santé Intergénérationnelle (CRDSI).,Réseau Québécois en Reproduction (RQR), Université Laval, Québec, Québec, Canada
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Marchais M, Gilbert I, Bastien A, Macaulay A, Robert C. Mammalian cumulus-oocyte complex communication: a dialog through long and short distance messaging. J Assist Reprod Genet 2022; 39:1011-1025. [PMID: 35499777 PMCID: PMC9107539 DOI: 10.1007/s10815-022-02438-8] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Accepted: 02/13/2022] [Indexed: 12/13/2022] Open
Abstract
Communications are crucial to ovarian follicle development and to ovulation, and while both folliculogenesis and oogenesis are distinct processes, they share highly interdependent signaling pathways. Signals from distant organs such as the brain must be processed and compartments within the follicle have to be synchronized. The hypothalamic–pituitary–gonadal (HPG) axis relies on long-distance signalling analogous to wireless communication by which data is disseminated in the environment and cells equipped with the appropriate receptors receive and interpret the messages. In contrast, direct cell-to-cell transfer of molecules is a very targeted, short distance messaging system. Numerous signalling pathways have been identified and proven to be essential for the production of a developmentally competent egg. The development of the cumulus-oocyte complex relies largely on short distance communications or direct transfer type via extensions of corona radiata cells through the zona pellucida. The type of information transmitted through these transzonal projections is still largely uncharacterized. This review provides an overview of current understanding of the mechanisms by which the gamete receives and transmits information within the follicle. Moreover, it highlights the fact that in addition to the well-known systemic long-distance based communications from the HPG axis, these mechanisms acting more locally should also be considered as important targets for controlling/optimizing oocyte quality.
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Affiliation(s)
- Mathilde Marchais
- Département des sciences animales, Centre de recherche en Reproduction, Développement et Santé Intergénérationnelle (CRDSI), Réseau Québécois en Reproduction (RQR), Pavillon Paul Comtois, Université Laval, Québec, QC, Canada
| | - Isabelle Gilbert
- Département des sciences animales, Centre de recherche en Reproduction, Développement et Santé Intergénérationnelle (CRDSI), Réseau Québécois en Reproduction (RQR), Pavillon Paul Comtois, Université Laval, Québec, QC, Canada
| | - Alexandre Bastien
- Département des sciences animales, Centre de recherche en Reproduction, Développement et Santé Intergénérationnelle (CRDSI), Réseau Québécois en Reproduction (RQR), Pavillon Paul Comtois, Université Laval, Québec, QC, Canada
| | - Angus Macaulay
- Département des sciences animales, Centre de recherche en Reproduction, Développement et Santé Intergénérationnelle (CRDSI), Réseau Québécois en Reproduction (RQR), Pavillon Paul Comtois, Université Laval, Québec, QC, Canada
| | - Claude Robert
- Département des sciences animales, Centre de recherche en Reproduction, Développement et Santé Intergénérationnelle (CRDSI), Réseau Québécois en Reproduction (RQR), Pavillon Paul Comtois, Université Laval, Québec, QC, Canada.
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7
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de Ávila ACFCM, Bridi A, Andrade GM, Del Collado M, Sangalli JR, Nociti RP, da Silva Junior WA, Bastien A, Robert C, Meirelles FV, Perecin F, da Silveira JC. Estrous cycle impacts microRNA content in extracellular vesicles that modulate bovine cumulus cell transcripts during in vitro maturation†. Biol Reprod 2021; 102:362-375. [PMID: 31504242 DOI: 10.1093/biolre/ioz177] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2019] [Revised: 07/19/2019] [Accepted: 07/04/2019] [Indexed: 01/02/2023] Open
Abstract
Extracellular vesicles (EVs) are nanoparticles secreted by ovarian follicle cells. Extracellular vesicles are an important form of intercellular communication, since they carry bioactive contents, such as microRNAs (miRNAs), mRNAs, and proteins. MicroRNAs are small noncoding RNA capable of modulating mRNA translation. Thus, EVs can play a role in follicle and oocyte development. However, it is not clear if EV contents vary with the estrous cycle stage. The aim of this study was to investigate the bovine miRNA content in EVs obtained from follicles at different estrous cycle stages, which are associated with different progesterone (P4) levels in the follicular fluid (FF). We collected FF from 3 to 6 mm follicles and evaluated the miRNA profile of the EVs and their effects on cumulus-oocyte complexes during in vitro maturation. We observed that EVs from low P4 group have a higher abundance of miRNAs predicted to modulate pathways, such as MAPK, RNA transport, Hippo, Cell cycle, FoxO, oocyte meiosis, and TGF-beta. Additionally, EVs were taken up by cumulus cells and, thus, affected the RNA global profile 9 h after EV supplementation. Cumulus cells supplemented with EVs from low P4 presented upregulated genes that could modulate biological processes, such as oocyte development, immune responses, and Notch signaling compared with genes of cumulus cells in the EV free media or with EVs from high P4 follicles. In conclusion, our results demonstrate that EV miRNA contents are distinct in follicles exposed to different estrous cycle stage. Supplementation with EVs impacts gene expression and biological processes in cumulus cells.
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Affiliation(s)
| | - Alessandra Bridi
- Department of Veterinary Medicine, Faculty of Animal Sciences and Food Engineering, University of São Paulo, Pirassununga, São Paulo, Brazil
| | - Gabriella Mamede Andrade
- Department of Veterinary Medicine, Faculty of Animal Sciences and Food Engineering, University of São Paulo, Pirassununga, São Paulo, Brazil
| | - Maite Del Collado
- Department of Veterinary Medicine, Faculty of Animal Sciences and Food Engineering, University of São Paulo, Pirassununga, São Paulo, Brazil
| | - Juliano Rodrigues Sangalli
- Department of Veterinary Medicine, Faculty of Animal Sciences and Food Engineering, University of São Paulo, Pirassununga, São Paulo, Brazil
| | - Ricardo Perecin Nociti
- Department of Veterinary Medicine, Faculty of Animal Sciences and Food Engineering, University of São Paulo, Pirassununga, São Paulo, Brazil
| | | | - Alexandre Bastien
- Animal Science Department, Research Center in Reproductive Biology, Institute on Nutrition and Functional Foods, Laval University, Québec, Québec, Canada
| | - Claude Robert
- Animal Science Department, Research Center in Reproductive Biology, Institute on Nutrition and Functional Foods, Laval University, Québec, Québec, Canada
| | - Flávio Vieira Meirelles
- Department of Veterinary Medicine, Faculty of Animal Sciences and Food Engineering, University of São Paulo, Pirassununga, São Paulo, Brazil
| | - Felipe Perecin
- Department of Veterinary Medicine, Faculty of Animal Sciences and Food Engineering, University of São Paulo, Pirassununga, São Paulo, Brazil
| | - Juliano Coelho da Silveira
- Department of Veterinary Medicine, Faculty of Animal Sciences and Food Engineering, University of São Paulo, Pirassununga, São Paulo, Brazil
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8
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Lodde V, Garcia Barros R, Dall'Acqua PC, Dieci C, Robert C, Bastien A, Sirard MA, Franciosi F, Luciano AM. Zinc supports transcription and improves meiotic competence of growing bovine oocytes. Reproduction 2021; 159:679-691. [PMID: 32191913 DOI: 10.1530/rep-19-0398] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Accepted: 03/19/2020] [Indexed: 11/08/2022]
Abstract
In the last years, many studies focused on the understanding of the possible role of zinc in the control of mammalian oogenesis, mainly on oocyte maturation and fertilization. However, little is known about the role of zinc at earlier stages, when the growing oocyte is actively transcribing molecules that will regulate and sustain subsequent stages of oocyte and embryonic development. In this study, we used the bovine model to gain insights into the possible involvement of zinc in oocyte development. We first mined the EmbryoGENE transcriptomic dataset, which revealed that several zinc transporters and methallothionein are impacted by physiological conditions throughout the final phase of oocyte growth and differentiation. We then observed that zinc supplementation during in vitro culture of growing oocytes is beneficial to the acquisition of meiotic competence when subsequently subjected to standard in vitro maturation. Furthermore, we tested the hypothesis that zinc supplementation might support transcription in growing oocytes. This hypothesis was indirectly confirmed by the experimental evidence that the content of labile zinc in the oocyte decreases when a major drop in transcription occurs in vivo. Accordingly, we observed that zinc sequestration with a zinc chelator rapidly reduced global transcription in growing oocytes, which was reversed by zinc supplementation in the culture medium. Finally, zinc supplementation impacted the chromatin state by reducing the level of global DNA methylation, which is consistent with the increased transcription. In conclusion, our study suggests that altering zinc availability by culture-medium supplementation supports global transcription, ultimately enhancing meiotic competence.
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Affiliation(s)
- Valentina Lodde
- Reproductive and Developmental Biology Laboratory (Redbiolab), Department of Health, Animal Science and Food Safety 'Carlo Cantoni', Università degli Studi di MIlano, Milan, Italy
| | - Rodrigo Garcia Barros
- Reproductive and Developmental Biology Laboratory (Redbiolab), Department of Health, Animal Science and Food Safety 'Carlo Cantoni', Università degli Studi di MIlano, Milan, Italy
| | - Priscila Chediek Dall'Acqua
- Department of Preventive Medicine and Animal Reproduction, School of Agricultural and Veterinarian Sciences, São Paulo State University (UNESP), Jaboticabal, Brazil.,Laboratory of Reproductive Physiology, School of Veterinary Medicine, São Paulo State University (UNESP), Araçatuba, Brazil
| | - Cecilia Dieci
- Reproductive and Developmental Biology Laboratory (Redbiolab), Department of Health, Animal Science and Food Safety 'Carlo Cantoni', Università degli Studi di MIlano, Milan, Italy
| | - Claude Robert
- Centre de Recherche en Reproduction, Développement et Santé Intergénérationnelle (CRDSI), Département des Sciences Animales, Université Laval, Québec, Canada
| | - Alexandre Bastien
- Centre de Recherche en Reproduction, Développement et Santé Intergénérationnelle (CRDSI), Département des Sciences Animales, Université Laval, Québec, Canada
| | - Marc-André Sirard
- Centre de Recherche en Reproduction, Développement et Santé Intergénérationnelle (CRDSI), Département des Sciences Animales, Université Laval, Québec, Canada
| | - Federica Franciosi
- Reproductive and Developmental Biology Laboratory (Redbiolab), Department of Health, Animal Science and Food Safety 'Carlo Cantoni', Università degli Studi di MIlano, Milan, Italy
| | - Alberto Maria Luciano
- Reproductive and Developmental Biology Laboratory (Redbiolab), Department of Health, Animal Science and Food Safety 'Carlo Cantoni', Università degli Studi di MIlano, Milan, Italy
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9
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Martínez ML, Bastien A, Giambruni JM, Bursztyn M, Ravazzola MN, Challiol CF. Tamoxifen retinal toxicity. Monitoring by multimodal imaging study. Arch Soc Esp Oftalmol (Engl Ed) 2020; 95:496-500. [PMID: 32600834 DOI: 10.1016/j.oftal.2020.05.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2020] [Revised: 05/11/2020] [Accepted: 05/19/2020] [Indexed: 06/11/2023]
Abstract
INTRODUCTION Tamoxifen is a non-steroidal anti-oestrogen that acts as an antagonist in breast tissue, neurosensory retina, and retinal pigment epithelium (RPE). The reported incidence of its ocular effects varies between 0.9% and 11%. METHODS Case series. Multimodal image studies were used to evaluate three female patients who were receiving tamoxifen for breast cancer for the purpose of monitoring and determining whether there are changes after discontinuation of treatment. RESULTS All three patients showed signs of crystalline retinopathy using spectral domain optical coherence tomography (SD-OCT) during follow-up. CONCLUSION The follow-up using multimodal imaging studies allowed evaluating the progression of the changes, providing a prognostic assessment. The findings reported (visual acuity and multimodal imaging) confirmed the results of previous studies, indicating that, at a certain level of toxicity, the damage was irreversible.
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Affiliation(s)
- M L Martínez
- Departamento de Oftalmología, Hospital Italiano de Buenos Aires, Buenos Aires, Argentina.
| | - A Bastien
- Departamento de Oftalmología, Hospital Italiano de Buenos Aires, Buenos Aires, Argentina
| | - J M Giambruni
- Departamento de Oftalmología, Hospital Italiano de Buenos Aires, Buenos Aires, Argentina
| | - M Bursztyn
- Departamento de Oftalmología, Hospital Italiano de Buenos Aires, Buenos Aires, Argentina
| | - M N Ravazzola
- Departamento de Oftalmología, Hospital Italiano de Buenos Aires, Buenos Aires, Argentina
| | - C F Challiol
- Departamento de Oftalmología, Hospital Italiano de Buenos Aires, Buenos Aires, Argentina
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10
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Guillaume X, Bastien A. Comparaison du retentissement de la migraine sévère et de l’asthme sévère sur la qualité de vie, l’activité professionnelle et le trouble anxieux-dépressif. Rev Epidemiol Sante Publique 2020. [DOI: 10.1016/j.respe.2020.04.033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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11
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Prunier J, Lemaçon A, Bastien A, Jafarikia M, Porth I, Robert C, Droit A. LD-annot: A Bioinformatics Tool to Automatically Provide Candidate SNPs With Annotations for Genetically Linked Genes. Front Genet 2019; 10:1192. [PMID: 31850063 PMCID: PMC6889475 DOI: 10.3389/fgene.2019.01192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2019] [Accepted: 10/28/2019] [Indexed: 11/24/2022] Open
Abstract
A multitude of model and non-model species studies have now taken full advantage of powerful high-throughput genotyping advances such as SNP arrays and genotyping-by-sequencing (GBS) technology to investigate the genetic basis of trait variation. However, due to incomplete genome coverage by these technologies, the identified SNPs are likely in linkage disequilibrium (LD) with the causal polymorphisms, rather than be causal themselves. In addition, researchers could benefit from annotations for the identified candidate SNPs and, simultaneously, for all neighboring genes in genetic linkage. In such case, LD extent estimation surrounding the candidate SNPs is required to determine the regions encompassing genes of interest. We describe here an automated pipeline, “LD-annot,” designed to delineate specific regions of interest for a given experiment and candidate polymorphisms on the basis of LD extent, and furthermore, provide annotations for all genes within such regions. LD-annot uses standard file formats, bioinformatics tools, and languages to provide identifiers, coordinates, and annotations for genes in genetic linkage with each candidate polymorphism. Although the focus lies upon SNP arrays and GBS data as they are being routinely deployed, this pipeline can be applied to a variety of datasets as long as genotypic data are available for a high number of polymorphisms and formatted into a vcf file. A checkpoint procedure in the pipeline allows to test several threshold values for linkage without having to rerun the entire pipeline, thus saving the user computational time and resources. We applied this new pipeline to four different sample sets: two breeding populations GBS datasets, one within-pedigree SNP set coming from whole genome sequencing (WGS), and a very large multi-varieties SNP dataset obtained from WGS, representing variable sample sizes, and numbers of polymorphisms. LD-annot performed within minutes, even when very high numbers of polymorphisms are investigated and thus will efficiently assist research efforts aimed at identifying biologically meaningful genetic polymorphisms underlying phenotypic variation. LD-annot tool is available under a GPL license from https://github.com/ArnaudDroitLab/LD-annot.
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Affiliation(s)
- Julien Prunier
- Genomics Center, Centre Hospitalier Universitaire de Québec-Université Laval Research Center, Quebec, QC, Canada.,Forestry Research Centre, Forestry Department, Université Laval, Quebec, QC, Canada
| | - Audrey Lemaçon
- Genomics Center, Centre Hospitalier Universitaire de Québec-Université Laval Research Center, Quebec, QC, Canada
| | - Alexandre Bastien
- Faculty of Agricultural and Food Science, Université Laval, Quebec, QC, Canada
| | - Mohsen Jafarikia
- Canadian Centre for Swine Improvement, Ottawa, ON, Canada.,Department of Animal Biosciences, University of Guelph, Guelph, ON, Canada
| | - Ilga Porth
- Forestry Research Centre, Forestry Department, Université Laval, Quebec, QC, Canada
| | - Claude Robert
- Forestry Research Centre, Forestry Department, Université Laval, Quebec, QC, Canada
| | - Arnaud Droit
- Genomics Center, Centre Hospitalier Universitaire de Québec-Université Laval Research Center, Quebec, QC, Canada
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Bernet A, Bastien A, Soulet D, Jerczynski O, Roy C, Bianchi Rodrigues Alves M, Lecours C, Tremblay MÈ, Bailey JL, Robert C, Belleannée C. Cell-lineage specificity of primary cilia during postnatal epididymal development. Hum Reprod 2018; 33:1829-1838. [DOI: 10.1093/humrep/dey276] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2018] [Accepted: 08/20/2018] [Indexed: 12/25/2022] Open
Affiliation(s)
- Agathe Bernet
- Université Laval, Department of Obstetrics, Gynecology and Reproduction, CHU de Quebec Research Center (CHUL), Quebec City, Quebec, Canada
| | - Alexandre Bastien
- Université Laval, Department of Animal Sciences, Quebec City, Quebec, Canada
| | - Denis Soulet
- Université Laval, Faculty of Pharmacy, CHU de Québec Research Center (CHUL), Quebec City, Quebec, Canada
| | - Olivia Jerczynski
- Université Laval, Department of Obstetrics, Gynecology and Reproduction, CHU de Quebec Research Center (CHUL), Quebec City, Quebec, Canada
| | - Christian Roy
- Université Laval, Department of Obstetrics, Gynecology and Reproduction, CHU de Quebec Research Center (CHUL), Quebec City, Quebec, Canada
| | - Maira Bianchi Rodrigues Alves
- Université Laval, Department of Obstetrics, Gynecology and Reproduction, CHU de Quebec Research Center (CHUL), Quebec City, Quebec, Canada
| | - Cynthia Lecours
- Université Laval, Faculty of Pharmacy, CHU de Québec Research Center (CHUL), Quebec City, Quebec, Canada
- Université Laval, Department of Molecular Medicine, CHU de Québec Research Center (CHUL), Quebec City, Quebec, Canada
| | - Marie-Ève Tremblay
- Université Laval, Department of Molecular Medicine, CHU de Québec Research Center (CHUL), Quebec City, Quebec, Canada
| | - Janice L Bailey
- Université Laval, Department of Animal Sciences, Quebec City, Quebec, Canada
| | - Claude Robert
- Université Laval, Department of Animal Sciences, Quebec City, Quebec, Canada
| | - Clémence Belleannée
- Université Laval, Department of Obstetrics, Gynecology and Reproduction, CHU de Quebec Research Center (CHUL), Quebec City, Quebec, Canada
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13
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Yu D, Daddacha W, Koyen A, Bastien A, Head P, Dhere V, Nabeta G, Connolly E, Werner E, Madden M, Daly M, Minten E, Whelan D, Zhang H, Anand R, Shepard C, Sundaram R, Deng X, Dynan W, Wang Y, Bindra R, Cejka P, Rothenberg E, Doetsch P, Kim B. OC-0377: Targeting a Novel Function for SAMHD1 in DNA Repair for Radiation Therapy and PARP Inhibition. Radiother Oncol 2018. [DOI: 10.1016/s0167-8140(18)30687-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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14
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Challiol CF, Bastien A, Giambruni JM, Fernandez Meijide N. Retinal toxicity due to canthaxanthin. Case series. ACTA ACUST UNITED AC 2018; 93:411-415. [PMID: 29573837 DOI: 10.1016/j.oftal.2018.01.011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2017] [Revised: 01/24/2018] [Accepted: 01/24/2018] [Indexed: 11/16/2022]
Abstract
INTRODUCTION Canthaxanthin is a chemical product used to tan the skin. Its most frequent adverse effect is canthaxanthin retinopathy. PURPOSE/ METHODS Report, case series. RESULTS Two female patients, one 42 years-old and the other 72 years-old, with signs of retinopathy due to canthaxanthin. Complete ophthalmology examinations were carried out. The peripheral fovea birefringent deposits with internal retinal involvement were studied using multimodal imaging. CONCLUSION Canthaxanthin retinopathy is rare. Multimodal imaging may provide important data for the differential diagnosis of crystalline retinopathy.
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Affiliation(s)
- C F Challiol
- Departamento de Oftalmología, Hospital Italiano de Buenos Aires, , Buenos Aires, Argentina.
| | - A Bastien
- Departamento de Oftalmología, Hospital Italiano de Buenos Aires, , Buenos Aires, Argentina
| | - J M Giambruni
- Departamento de Oftalmología, Hospital Italiano de Buenos Aires, , Buenos Aires, Argentina
| | - N Fernandez Meijide
- Departamento de Oftalmología, Hospital Italiano de Buenos Aires, , Buenos Aires, Argentina
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15
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Van Le Thanh B, Lemay M, Bastien A, Lapointe J, Lessard M, Chorfi Y, Guay F. The potential effects of antioxidant feed additives in mitigating the adverse effects of corn naturally contaminated with Fusarium mycotoxins on antioxidant systems in the intestinal mucosa, plasma, and liver in weaned pigs. Mycotoxin Res 2016; 32:99-116. [PMID: 27021614 DOI: 10.1007/s12550-016-0245-y] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2016] [Revised: 03/15/2016] [Accepted: 03/17/2016] [Indexed: 01/06/2023]
Abstract
Seventy-two piglets (6.0 kg BW) were randomly distributed within six different dietary treatments to evaluate the effect of deoxynivalenol (DON) and the potential of four antioxidant feed additives in mitigating the adverse effects of DON on growth performances and oxidative status. Dietary treatments were as follows: control diet 0.8 mg/kg DON; contaminated diet (DON-contaminated diet) 3.1 mg/kg DON; and four contaminated diets, each supplemented with a different antioxidant feed additive, DON + vitamins, DON + organic selenium (Se)/glutathione (GSH), DON + quercetin, and DON + COMB (vitamins + Se/GSH + quercetin from the other treatments). Although DON was the main mycotoxin in the contaminated diet, this diet also contained 1.8 mg/kg of zearalenone (ZEN). The "mycotoxin" effects therefore included the combined effect of these two mycotoxins, DON, and ZEN. The DON-ZEN ingestion did not affect growth performances, average daily gain (ADG), average daily feed intake (ADFI), and feed efficiency (G:F ratio), but partially induced oxidative stress in weaned pigs as shown by increased malondialdehyde (MDA) content in the plasma and superoxide dismutase (SOD) activity in liver (P < 0.05). However, no change in the activity of other antioxidant enzymes or GSH concentrations was observed in plasma and liver of piglets fed the DON-contaminated diet (P > 0.05). Supplementation with individual antioxidant feed additive had a limited effect in weaned pigs fed DON-ZEN-contaminated diets. Combination of antioxidants (vitamins A, C, and E, quercetin, and organic Se/GSH) reduced plasma and liver MDA content and SOD activity in liver (P < 0.05) of piglets fed DON-ZEN-contaminated diets. Furthermore, this combination also reduced MDA content in the ileum (P < 0.05), although activity of glutathione peroxidases (GPx), SOD or catalase (CAT) in the ileum was not affected by DON-ZEN contamination or antioxidant supplements. In conclusion, DON-ZEN contamination induced oxidative stress in weaned pigs and combination of antioxidant feed additives restored partially the oxidative status. Further studies will be necessary to assess whether the effects of antioxidant feed additives on oxidative status are specific when feed is contaminated with DON-ZEN.
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Affiliation(s)
| | - Michel Lemay
- Department of Animal Science, Université Laval, Quebec, QC, Canada
| | | | - Jérôme Lapointe
- Sherbrooke Research and Development Centre, Agriculture and Agri-Food Canada (AAFC), Sherbrooke, QC, Canada
| | - Martin Lessard
- Sherbrooke Research and Development Centre, Agriculture and Agri-Food Canada (AAFC), Sherbrooke, QC, Canada
| | - Younès Chorfi
- Department of Veterinary Biomedicine, Université de Montréal, Saint Hyacinthe, QC, Canada
| | - Frédéric Guay
- Department of Animal Science, Université Laval, Quebec, QC, Canada.
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16
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Macaulay AD, Gilbert I, Scantland S, Fournier E, Ashkar F, Bastien A, Saadi HAS, Gagné D, Sirard MA, Khandjian ÉW, Richard FJ, Hyttel P, Robert C. Cumulus Cell Transcripts Transit to the Bovine Oocyte in Preparation for Maturation. Biol Reprod 2015; 94:16. [PMID: 26586844 PMCID: PMC4809558 DOI: 10.1095/biolreprod.114.127571] [Citation(s) in RCA: 88] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2014] [Accepted: 11/13/2015] [Indexed: 11/30/2022] Open
Abstract
So far, the characteristics of a good quality egg have been elusive, similar to the nature of the physiological, cellular, and molecular cues leading to its production both in vivo and in vitro. Current understanding highlights a strong and complex interdependence between the follicular cells and the gamete. Secreted factors induce cellular responses in the follicular cells, and direct exchange of small molecules from the cumulus cells to the oocyte through gap junctions controls meiotic arrest. Studying the interconnection between the cumulus cells and the oocyte, we previously demonstrated that the somatic cells also contribute transcripts to the gamete. Here, we show that these transcripts can be visualized moving down the transzonal projections (TZPs) to the oocyte, and that a time course analysis revealed progressive RNA accumulation in the TZPs, indicating that RNA transfer occurs before the initiation of meiosis resumption under a timetable fitting with the acquisition of developmental competence. A comparison of the identity of the nascent transcripts trafficking in the TZPs, with those in the oocyte increasing in abundance during maturation, and that are present on the oocyte's polyribosomes, revealed transcripts common to all three fractions, suggesting the use of transferred transcripts for translation. Furthermore, the removal of potential RNA trafficking by stripping the cumulus cells caused a significant reduction in maturation rates, indicating the need for the cumulus cell RNA transfer to the oocyte. These results offer a new perspective to the determinants of oocyte quality and female fertility, as well as provide insight that may eventually be used to improve in vitro maturation conditions.
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Affiliation(s)
- Angus D Macaulay
- Département des sciences animales, Centre de recherche en biologie de la reproduction, Institut sur la nutrition et les aliments fonctionnels, Université Laval, Québec, Québec, Canada
| | - Isabelle Gilbert
- Département des sciences animales, Centre de recherche en biologie de la reproduction, Institut sur la nutrition et les aliments fonctionnels, Université Laval, Québec, Québec, Canada
| | - Sara Scantland
- Département des sciences animales, Centre de recherche en biologie de la reproduction, Institut sur la nutrition et les aliments fonctionnels, Université Laval, Québec, Québec, Canada
| | - Eric Fournier
- Département des sciences animales, Centre de recherche en biologie de la reproduction, Institut sur la nutrition et les aliments fonctionnels, Université Laval, Québec, Québec, Canada
| | - Fazl Ashkar
- Department of Biomedical Sciences, Reproductive Biology Lab, University of Guelph, Guelph, Ontario, Canada
| | - Alexandre Bastien
- Département des sciences animales, Centre de recherche en biologie de la reproduction, Institut sur la nutrition et les aliments fonctionnels, Université Laval, Québec, Québec, Canada
| | - Habib A Shojaei Saadi
- Département des sciences animales, Centre de recherche en biologie de la reproduction, Institut sur la nutrition et les aliments fonctionnels, Université Laval, Québec, Québec, Canada
| | - Dominic Gagné
- Département des sciences animales, Centre de recherche en biologie de la reproduction, Institut sur la nutrition et les aliments fonctionnels, Université Laval, Québec, Québec, Canada
| | - Marc-André Sirard
- Département de Psychiatrie et Neurosciences, Institut universitaire en santé mentale de Québec, Université Laval, Québec City, Québec, Canada
| | - Édouard W Khandjian
- Département de Psychiatrie et Neurosciences, Institut universitaire en santé mentale de Québec, Université Laval, Québec City, Québec, Canada
| | - François J Richard
- Département des sciences animales, Centre de recherche en biologie de la reproduction, Institut sur la nutrition et les aliments fonctionnels, Université Laval, Québec, Québec, Canada
| | - Poul Hyttel
- Department of Veterinary Clinical and Animal Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Claude Robert
- Département des sciences animales, Centre de recherche en biologie de la reproduction, Institut sur la nutrition et les aliments fonctionnels, Université Laval, Québec, Québec, Canada
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Bastien A, Caminero AG, Ying L, List J. Incidence of urinary tract infections and of genital infections in two T2DM populations cotreated with dapagliflozin and oral antidiabetics +/− insulin. Can J Diabetes 2009. [DOI: 10.1016/s1499-2671(09)33130-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Abstract
In the present article, we report the identification of the first HLA-B*07 null allele found in a Polish patient awaiting a kidney allograft. A discrepant result obtained between serological typing (HLA-B "blank") and high-resolution molecular typing using PCR-SSP method (HLA-B*070201 allele) suggested the presence of a null allele. Genomic DNA sequencing of the HLA-B*07 allele revealed a single nucleotide substitution at the 3' end of the exon 4 leading to a premature stop codon.
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Affiliation(s)
- P Perrier
- Laboratoire d'Histocompatibilité, CHU Brabois, 54511 Vandoeuvre-les-Nancy Cedex, France.
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Joseph V, Straker T, Bastien A. Design of a cost-effective analysis of the implementation of a difficult airway curriculum. J Clin Anesth 2005. [DOI: 10.1016/j.jclinane.2005.09.042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Straker T, Bastien A, Joseph V. Continuing medical education program introducing yourself to the evolution of the individualized airway algorithm. J Clin Anesth 2005. [DOI: 10.1016/j.jclinane.2005.09.047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Bastien A. Life lessons. Midwifery Today Int Midwife 2003:24-6. [PMID: 12584814] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
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Bastien A. Apprenticeship in medicine and midwifery. Midwifery Today Int Midwife 2002:48-9. [PMID: 12154724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/26/2023]
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Bastien A. Second trimester miscarriage at home. Midwifery Today Childbirth Educ 1997:49-50. [PMID: 9136422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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Kershaw-Bellemare R, Vézina D, Bastien A, Martel M. [The "milieu" approach. A proactive intervention in community health]. Infirm Que 1996; 3:37. [PMID: 8696470] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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Affiliation(s)
- A Bastien
- Department of Preventive Medicine and Community Health, State University of New York, Brooklyn 11203, USA
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Bastien A. [Haitians in Montreal: demographic and spatial evolution]. Cah Que Demogr 1985; 14:241-57. [PMID: 12314323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/19/2023]
Abstract
"Analysing demographic characteristics over a given period may be useful in explaining the spatial distribution of ethnic groups in an urban environment. This paper first presents the main aspects of the demographic evolution of Quebec's Haitian population during the 1971-1981 period. It then analyses the evolution of the spatial distribution of this population in the Montreal region. It finally tries to show the interrelations between both evolutions." (SUMMARY IN ENG AND SPA)
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