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Roosta Z, Unniappan S, Uju C, Rahmati M, Falahatkar B. Intraperitoneal administration of kisspeptin-10 modulates follicle maturation, gonadal steroids, calcium and metabolites in Sterlet sturgeon, Acipenser ruthenus. Comp Biochem Physiol A Mol Integr Physiol 2024; 292:111609. [PMID: 38401763 DOI: 10.1016/j.cbpa.2024.111609] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2023] [Revised: 02/20/2024] [Accepted: 02/21/2024] [Indexed: 02/26/2024]
Abstract
Kisspeptin is a multifunctional neurohormone, primarily involved in the regulation of reproduction. We tested whether peripheral administration of kisspeptin10 (KP-10) via intraperitoneal injection or slow release affects reproductive hormones and metabolites in Sterlet sturgeon (Acipenser ruthenus). Plasma and mucus 17β-estradiol (E2), and testosterone (T), plasma and follicular vitellogenin (VTG) and calcium (Ca) as well as glucose and lipids were determined. Mature Sterlet sturgeon were grouped into six groups: saline i.p injection (control), human kisspeptin (hKP-10) i.p injection; acipenser kisspeptin (aKP-10) i.p injection; hKP-10 (slow release); aKP-10 (slow-release) and no treatment control. No effect for KP-10 on sturgeon body weight was found after 4 weeks of treatment. Multivariate analysis revealed a significant disparity in plasma E2 levels. It was significantly different between groups (time, P = 0.0022). E2 in epithelia mucosa showed significant difference between and within groups in the acute group (time, P = 0.0252; treatment, P = 0.0423; time × treatment, P = 0.0429). T levels were unaffected by treatments (P > 0.05). The presence of synthetic aKP-10 led to an elevation in oocyte and plasma VTG levels (P < 0.05). Prolonged exposure to this peptide resulted in an increase in plasma calcium levels. Simultaneously, there was an augmentation in the number of mature follicles. Regardless of the duration of exposure, aKP-10 significantly elevated plasma glucose levels in Sterlet (P < 0.0). Additionally, KP-10 led to an increase in plasma lipids and cholesterol in Sterlet. Overall, our data support an involvement for KP-10 in the regulation of gonadal steroid hormones, oocyte maturation and metabolite levels in sturgeon, suggesting a positive role for this peptide in the reproductive physiology of this species.
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Affiliation(s)
- Zahra Roosta
- Laboratory of Integrative Neuroendocrinology, Department of Veterinary Biomedical Sciences, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, Saskatchewan S7N 5B4, Canada; Fisheries Department, Faculty of Natural Resources, University of Guilan, Sowmeh Sara, Guilan, Iran
| | - Suraj Unniappan
- Laboratory of Integrative Neuroendocrinology, Department of Veterinary Biomedical Sciences, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, Saskatchewan S7N 5B4, Canada
| | - Chinelo Uju
- Laboratory of Integrative Neuroendocrinology, Department of Veterinary Biomedical Sciences, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, Saskatchewan S7N 5B4, Canada
| | - Mehdi Rahmati
- Dr. Yousefpour Marine Fishes Restocking and Genetic Conservation Center, Siahkal, Guilan, Iran
| | - Bahram Falahatkar
- Fisheries Department, Faculty of Natural Resources, University of Guilan, Sowmeh Sara, Guilan, Iran; Department of Marine Sciences, The Caspian Sea Basin Research Center, University of Guilan, Rasht, Guilan, Iran.
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Magata F, Kikuzawa M, Bollwein H, Matsuda F, Haneda S. Lipopolysaccharide-binding protein in follicular fluid is associated with the follicular inflammatory status and granulosa cell steroidogenesis in dairy cows. J Reprod Dev 2024:2023-104. [PMID: 38644218 DOI: 10.1262/jrd.2023-104] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/23/2024] Open
Abstract
Metabolic stress and subsequent hepatic dysfunction in high-producing dairy cows are associated with inflammatory diseases and declining fertility. Lipopolysaccharide (LPS)-binding protein (LBP) is produced by hepatocytes and controls the immune response, suggesting that it is involved in the pathophysiology of inflammation-related attenuation of reproductive functions during metabolic stress. This study investigated the effect of LBP on the inflammatory status, oocyte quality, and steroidogenesis in the follicular microenvironment of dairy cows. Using bovine ovaries obtained from a slaughterhouse, follicular fluid and granulosa cells were collected from large follicles to evaluate the follicular status of metabolism, inflammation, and steroidogenesis. Cumulus-oocyte complexes were aspirated from small follicles and subjected to in vitro embryo production. The results showed that follicular fluid LBP concentrations were significantly higher in cows with fatty livers and hepatitis than in those with healthy livers. Follicular fluid LBP and LPS concentrations were negatively correlated, whereas LPS concentration showed a positive correlation with the concentrations of non-esterified fatty acids (NEFA) and β-hydroxybutyric acid in follicular fluid. The blastulation rate of oocytes after in vitro fertilization was impaired in cows in which coexisting large follicles had high NEFA levels. Follicular fluid NEFA concentration was negatively correlated with granulosa cell expression of the estradiol (E2) synthesis-related gene (CYP19A1). Follicular fluid LBP concentration was positively correlated with follicular fluid E2 concentration and granulosa cell CYP19A1 expression. In conclusion, follicular fluid LBP may be associated with favorable conditions in the follicular microenvironment, including low LPS levels and high E2 production by granulosa cells.
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Affiliation(s)
- Fumie Magata
- Department of Veterinary Medical Science, The University of Tokyo, Tokyo113-8657, Japan
| | - Misato Kikuzawa
- Department of Veterinary Medical Science, The University of Tokyo, Tokyo113-8657, Japan
| | - Heinrich Bollwein
- Clinic of Reproductive Medicine, Vetsuisse Faculty, University of Zurich, 8057 Zurich, Switzerland
| | - Fuko Matsuda
- Department of Veterinary Medical Science, The University of Tokyo, Tokyo113-8657, Japan
| | - Shingo Haneda
- Department of Veterinary Medicine, Obihiro University of Agriculture and Veterinary Medicine, Hokkaido 080-8555, Japan
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Córdova-Oriz I, Polonio AM, Cuadrado-Torroglosa I, Chico-Sordo L, Medrano M, García-Velasco JA, Varela E. Chromosome ends and the theory of marginotomy: implications for reproduction. Biogerontology 2024; 25:227-248. [PMID: 37943366 DOI: 10.1007/s10522-023-10071-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] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Accepted: 09/21/2023] [Indexed: 11/10/2023]
Abstract
Telomeres are the protective structures located at the ends of linear chromosomes. They were first described in the 1930s, but their biology remained unexplored until the early 70s, when Alexey M. Olovnikov, a theoretical biologist, suggested that telomeres cannot be fully copied during DNA replication. He proposed a theory that linked this phenomenon with the limit of cell proliferation capacity and the "duration of life" (theory of marginotomy), and suggested a potential of telomere lenghthening for the prevention of aging (anti-marginotomy). The impact of proliferative telomere shortening on life expectancy was later confirmed. In humans, telomere shortening is counteracted by telomerase, an enzyme that is undetectable in most adult somatic cells, but present in cancer cells and adult and embryonic stem and germ cells. Although telomere length dynamics are different in male and female gametes during gametogenesis, telomere lengths are reset at the blastocyst stage, setting the initial length of the species. The role of the telomere pathway in reproduction has been explored for years, mainly because of increased infertility resulting from delayed childbearing. Short telomere length in ovarian somatic cells is associated to decreased fertility and higher aneuploidy rates in embryos. Consequently, there is a growing interest in telomere lengthening strategies, aimed at improving fertility. It has also been observed that lifestyle factors can affect telomere length and improve fertility outcomes. In this review, we discuss the implications of telomere theory in fertility, especially in oocytes, spermatozoa, and embryos, as well as therapies to enhance reproductive success.
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Affiliation(s)
- Isabel Córdova-Oriz
- IVIRMA Global Research Alliance, Instituto de Investigación Sanitaria La Fe (IIS La Fe), Valencia, Spain
| | - Alba M Polonio
- IVIRMA Global Research Alliance, Instituto de Investigación Sanitaria La Fe (IIS La Fe), Valencia, Spain
| | - Isabel Cuadrado-Torroglosa
- IVIRMA Global Research Alliance, Instituto de Investigación Sanitaria La Fe (IIS La Fe), Valencia, Spain
| | - Lucía Chico-Sordo
- IVIRMA Global Research Alliance, Instituto de Investigación Sanitaria La Fe (IIS La Fe), Valencia, Spain
| | - Marta Medrano
- IVIRMA Global Research Alliance, Instituto de Investigación Sanitaria La Fe (IIS La Fe), Valencia, Spain
| | - Juan A García-Velasco
- IVIRMA Global Research Alliance, Instituto de Investigación Sanitaria La Fe (IIS La Fe), Valencia, Spain
- IVIRMA Global Research Alliance, IVIRMA Madrid, Madrid, Spain
- Department of Medical Specialties and Public Health, Edificio Departamental II, Rey Juan Carlos University, Av. de Atenas, s/n, 28922, Alcorcón, Madrid, Spain
| | - Elisa Varela
- IVIRMA Global Research Alliance, Instituto de Investigación Sanitaria La Fe (IIS La Fe), Valencia, Spain.
- Department of Medical Specialties and Public Health, Edificio Departamental II, Rey Juan Carlos University, Av. de Atenas, s/n, 28922, Alcorcón, Madrid, Spain.
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de Lima CB, Milazzotto MP, Vireque AA, Joaquim DC, Sobreira TJP, Ferreira CR. Impact of Extraction Methods and Transportation Conditions on Lipid Profiles of Bovine Oocytes. Reprod Sci 2024:10.1007/s43032-024-01524-9. [PMID: 38561471 DOI: 10.1007/s43032-024-01524-9] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Accepted: 03/19/2024] [Indexed: 04/04/2024]
Abstract
Lipids play numerous pivotal physiological roles in mammalian reproduction, being indispensable for oocyte competence acquisition and post-fertilization embryonic development. Profiling lipids in minute samples, such as oocytes, presents challenges but has been accomplished through mass spectrometry technologies like Multiple Reaction Monitoring (MRM) profiling. With the dual objectives of simplifying workflow and examining the influence of preanalytical conditions, we assessed whether transportation at room temperature affects the lipid profile of bovine oocytes. To this end, samples were prepared using either monophasic (methanol only) or biphasic liquid extraction protocols (Bligh & Dyer method) and transported either on dry ice or at room temperature inside sealed-vacuum packages to prevent lipid oxidation. Subsequently, employing a comprehensive method, we screened a list of 316 MRMs from 10 different lipid subclasses in oocyte lipid extracts. Principal Component Analysis (PCA) revealed similar lipid profiles concerning temperature during transportation, whereas clear differentiation among samples was observed based on the lipid extraction method. Univariate analysis indicated that the one-phase methanol extraction resulted in higher relative abundances of phospholipids, except for phosphatidylserines. Conversely, the Bligh & Dyer extraction favored the detection of neutral intracellular lipids (triacylglycerols, free fatty acids, cholesteryl esters, and acyl-carnitines). Consequently, lipid recovery was directly correlated with the polarity of lipid class and the extraction method. Regarding transportation temperature, phosphatidylethanolamine, triacylglycerol, and free fatty acids exhibited lower abundances when samples were transported at room temperature. Based on multivariate and univariate analyses, we conclude that if samples undergo the same lipid extraction protocol and are transported in the same batch at room temperature inside vacuum-sealed bags, it is feasible to analyze lipid extracts of bovine oocytes and still obtain informative lipid profiling results.
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Affiliation(s)
- Camila Bruna de Lima
- Department of Animal Sciences, Université Laval, Québec, QC, Canada
- Center of Natural and Human Sciences, Universidade Federal Do ABC, Santo André, São Paulo, Brazil
- , Ville de Québec, Canada
| | | | - Alessandra Aparecida Vireque
- Invitra, Assisted Reproductive Technologies Ltd., Supera Innovation and Technology Park, Ribeirão Preto, SP, 14056-680, Brazil
| | - Daniel Carlino Joaquim
- Invitra, Assisted Reproductive Technologies Ltd., Supera Innovation and Technology Park, Ribeirão Preto, SP, 14056-680, Brazil
| | - Tiago Jose Paschoal Sobreira
- Center for Analytical Instrumentation Development, Department of Chemistry, Purdue University, West Lafayette, IN, 47907, USA
| | - Christina Ramires Ferreira
- Center for Analytical Instrumentation Development, Department of Chemistry, Purdue University, West Lafayette, IN, 47907, USA
- Bindley Bioscience Center, Purdue University, West Lafayette, IN, 47907, USA
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Han T, Sun Z, Zhang H, Zhao Y, Jiao A, Gao Q. Ursolic acid alleviates meiotic abnormalities induced by 3-nitropropionic acid in mouse oocytes. Toxicol Appl Pharmacol 2024; 485:116910. [PMID: 38521372 DOI: 10.1016/j.taap.2024.116910] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 03/12/2024] [Accepted: 03/19/2024] [Indexed: 03/25/2024]
Abstract
3-nitropropionic acid (3-NPA), a toxic metabolite produced by mold, is mainly found in moldy sugarcane. 3-NPA inhibits the activity of succinate dehydrogenase that can induce oxidative stress injury in cells, reduce ATP production and induce oxidative stress in mouse ovaries to cause reproductive disorders. Ursolic acid (UA) has a variety of biological activities and is a pentacyclic triterpene compound found in many plants. This experiment aimed to investigate the cytotoxicity of 3-NPA during mouse oocyte in vitro maturation and the protective effects of UA on oocytes challenged with 3-NPA. The results showed that UA could alleviate 3-NPA-induced oocyte meiotic maturation failure. Specifically, 3-NPA induced a decrease in the first polar body extrusion rate of oocytes, abnormal distribution of cortical granules, and an increase in the proportion of spindle abnormalities. In addition, 3-NPA caused mitochondrial dysfunction and induced oxidative stress, including decreases in the GSH, mitochondrial membrane potential and ATP levels, and increases in the ROS levels, and these effects led to apoptosis and autophagy. The addition of UA could significantly improve the adverse effects caused by 3-NPA. In general, our data show that 3-NPA affects the normal development of oocytes during the in vitro culture, and the addition of UA can effectively repair the damage caused by 3-NPA to oocytes.
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Affiliation(s)
- Tiancang Han
- Engineering Research Center of North-East Cold Region Beef Cattle Science & Technology Innovation, Ministry of Education, Yanbian University, Yanji 133002, China; Jilin Engineering Research Center of Yanbian Yellow Cattle Resources Reservation, China; Yanbian University, Yanji 133002, China
| | - Zhaoyang Sun
- Engineering Research Center of North-East Cold Region Beef Cattle Science & Technology Innovation, Ministry of Education, Yanbian University, Yanji 133002, China; Jilin Engineering Research Center of Yanbian Yellow Cattle Resources Reservation, China; Yanbian University, Yanji 133002, China
| | - Hongbo Zhang
- Engineering Research Center of North-East Cold Region Beef Cattle Science & Technology Innovation, Ministry of Education, Yanbian University, Yanji 133002, China; Jilin Engineering Research Center of Yanbian Yellow Cattle Resources Reservation, China; Yanbian University, Yanji 133002, China
| | - Yuhan Zhao
- Engineering Research Center of North-East Cold Region Beef Cattle Science & Technology Innovation, Ministry of Education, Yanbian University, Yanji 133002, China; Jilin Engineering Research Center of Yanbian Yellow Cattle Resources Reservation, China; Yanbian University, Yanji 133002, China
| | - Anhui Jiao
- Engineering Research Center of North-East Cold Region Beef Cattle Science & Technology Innovation, Ministry of Education, Yanbian University, Yanji 133002, China; Jilin Engineering Research Center of Yanbian Yellow Cattle Resources Reservation, China; Yanbian University, Yanji 133002, China
| | - Qingshan Gao
- Engineering Research Center of North-East Cold Region Beef Cattle Science & Technology Innovation, Ministry of Education, Yanbian University, Yanji 133002, China; Jilin Engineering Research Center of Yanbian Yellow Cattle Resources Reservation, China; Yanbian University, Yanji 133002, China.
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Sun M, Wang X, Bi F, Xiang H, Wang N, Gao W, Liu Y, Lv Z, Li Y, Huan Y. Fibronectin 1 supports oocyte in vitro maturation in pigs. Int J Biol Macromol 2024; 264:130590. [PMID: 38447826 DOI: 10.1016/j.ijbiomac.2024.130590] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2024] [Revised: 02/29/2024] [Accepted: 03/01/2024] [Indexed: 03/08/2024]
Abstract
Oocyte in vitro maturation (IVM) based on the follicular fluid (FF) environment can exploit untapped resources, however, what FF factors regulate oocyte maturation remains unclear. This work demonstrated that serum and FF significantly promoted oocyte polar body extrusion (PBE) and subsequent embryo development, and FF was especially effective. Fibronectin 1 (FN1) was predicted as one potential candidate to regulate oocyte maturation by proteomics. FN1 transcription obviously decreased, and the protein expression significantly increased and migrated to plasma membrane or even outside during oocyte IVM. Treatment with 10 ng/mL FN1 significantly improved oocyte PBE rate. FN1 significantly upregulated the percentage of regular spindle morphology, downregulated the γ-H2AX level, decreased the levels of ROS and apoptosis, and increased GSH and mitochondrion contents by ameliorating the expression of corresponding genes. Moreover, FN1 significantly increased the p-PI3K level to enhance the activation of PI3K signaling pathway. In conclusion, this study discovers and confirms that FN1 is one factor in FF that significantly enhances oocyte maturation, and the underlying mechanism is that FN1 ameliorates oocyte nuclear and cytoplasmic maturation by promoting the activation of PI3K signaling pathway.
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Affiliation(s)
- Mingju Sun
- College of Veterinary Medicine, Qingdao Agricultural University, Qingdao, Shandong Province 266109, China
| | - Xiangyu Wang
- College of Veterinary Medicine, Qingdao Agricultural University, Qingdao, Shandong Province 266109, China
| | - Fanglong Bi
- College of Veterinary Medicine, Qingdao Agricultural University, Qingdao, Shandong Province 266109, China
| | - Hongxiao Xiang
- College of Veterinary Medicine, Qingdao Agricultural University, Qingdao, Shandong Province 266109, China
| | - Ning Wang
- College of Veterinary Medicine, Qingdao Agricultural University, Qingdao, Shandong Province 266109, China
| | - Wenju Gao
- College of Veterinary Medicine, Qingdao Agricultural University, Qingdao, Shandong Province 266109, China
| | - Yixuan Liu
- College of Veterinary Medicine, Qingdao Agricultural University, Qingdao, Shandong Province 266109, China
| | - Zizhen Lv
- College of Veterinary Medicine, Qingdao Agricultural University, Qingdao, Shandong Province 266109, China
| | - Youwei Li
- College of Haidu, Qingdao Agricultural University, Qingdao, Shandong Province 265200, China
| | - Yanjun Huan
- College of Veterinary Medicine, Qingdao Agricultural University, Qingdao, Shandong Province 266109, China.
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Hou L, Liu W, Zhang H, Li R, Liu M, Shi H, Wu L. Divergent composition and transposon-silencing activity of small RNAs in mammalian oocytes. Genome Biol 2024; 25:80. [PMID: 38532500 DOI: 10.1186/s13059-024-03214-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] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Accepted: 03/11/2024] [Indexed: 03/28/2024] Open
Abstract
BACKGROUND Small RNAs are essential for germ cell development and fertilization. However, fundamental questions remain, such as the level of conservation in small RNA composition between species and whether small RNAs control transposable elements in mammalian oocytes. RESULTS Here, we use high-throughput sequencing to profile small RNAs and poly(A)-bearing long RNAs in oocytes of 12 representative vertebrate species (including 11 mammals). The results show that miRNAs are generally expressed in the oocytes of each representative species (although at low levels), whereas endo-siRNAs are specific to mice. Notably, piRNAs are predominant in oocytes of all species (except mice) and vary widely in length. We find PIWIL3-associated piRNAs are widespread in mammals and generally lack 3'-2'-O-methylation. Additionally, sequence identity is low between homologous piRNAs in different species, even among those present in syntenic piRNA clusters. Despite the species-specific divergence, piRNAs retain the capacity to silence younger TE subfamilies in oocytes. CONCLUSIONS Collectively, our findings illustrate a high level of diversity in the small RNA populations of mammalian oocytes. Furthermore, we identify sequence features related to conserved roles of small RNAs in silencing TEs, providing a large-scale reference for future in-depth study of small RNA functions in oocytes.
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Affiliation(s)
- Li Hou
- Key Laboratory of RNA Science and Engineering, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, 200031, China
| | - Wei Liu
- Key Laboratory of RNA Science and Engineering, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, 200031, China
| | - Hongdao Zhang
- Key Laboratory of RNA Science and Engineering, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, 200031, China
| | - Ronghong Li
- Key Laboratory of RNA Science and Engineering, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, 200031, China
| | - Miao Liu
- Shanghai-MOST Key Laboratory of Health and Disease Genomics, NHC Key Lab of Reproduction Regulation, Shanghai Institute for Biomedical and Pharmaceutical Technologies, Shanghai, 200032, China
| | - Huijuan Shi
- Shanghai-MOST Key Laboratory of Health and Disease Genomics, NHC Key Lab of Reproduction Regulation, Shanghai Institute for Biomedical and Pharmaceutical Technologies, Shanghai, 200032, China
| | - Ligang Wu
- Key Laboratory of RNA Science and Engineering, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, 200031, China.
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Kabeer SW, Riaz A, Ul-Rahman A, Shahbakht RM, Anjum A, Khera HURA, Haider A, Riaz F, Yasin R, Yaseen M, Saleem M, Bano N, Raza MA, Khan JA. Effect of different concentrations of resveratrol on nuclear maturation and in-vitro development competence of oocytes of Nili Ravi buffalo. Trop Anim Health Prod 2024; 56:105. [PMID: 38502249 DOI: 10.1007/s11250-024-03952-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] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Accepted: 03/01/2024] [Indexed: 03/21/2024]
Abstract
Buffaloes are considered animals of the future with the ability to survive under unfavorable conditions. However, the lack of access to superior germplasm poses a significant challenge to increasing buffalo production. Resveratrol has been shown to improve oocyte quality and developmental competence in various animals during in vitro embryo development. However, limited information is available on the use of resveratrol to improve the in vitro maturation and development competence of Nili Ravi buffalo oocytes. Therefore, the current study aimed to investigate the influence of different concentrations of resveratrol on the maturation, fertilization, and development of buffalo oocytes under in vitro conditions. Oocytes were collected from ovaries and subjected to in vitro maturation (IVM) using varying concentrations of resveratrol (0 µM, 0.5 µM, 1 µM, 1.5 µM, and 2 µM), and the maturation process was assessed using a fluorescent staining technique. Results indicated no significant differences in oocyte maturation, morula rate, and blastocyst rate among the various resveratrol concentrations. However, the cleavage rate notably increased with 1 µM and 1.5 µM concentrations of resveratrol (p < 0.05). In conclusion, the study suggests that adding 1 µM of resveratrol into the maturation media may enhance the cleavage and blastocyst hatching of oocytes of Nili Ravi buffaloes. These findings hold promise for advancing buffalo genetics, reproductive performance, and overall productivity, offering potential benefits to the dairy industry, especially in Asian countries.
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Affiliation(s)
- Samar Wafa Kabeer
- Faculty of Veterinary and Animal Sciences, Muhammad Nawaz Shareef University of Agriculture, Multan, 66000, Pakistan.
| | - Amjad Riaz
- Department of Theriogenology, University of Veterinary and Animal Sciences, Lahore, 54000, Pakistan
| | - Aziz Ul-Rahman
- Faculty of Veterinary and Animal Sciences, Muhammad Nawaz Shareef University of Agriculture, Multan, 66000, Pakistan.
| | - Rana Muhammad Shahbakht
- Faculty of Veterinary and Animal Sciences, Muhammad Nawaz Shareef University of Agriculture, Multan, 66000, Pakistan
| | - Ahsan Anjum
- Faculty of Veterinary and Animal Sciences, Muhammad Nawaz Shareef University of Agriculture, Multan, 66000, Pakistan
| | - Hafeez Ur Rehman Ali Khera
- Faculty of Veterinary and Animal Sciences, Muhammad Nawaz Shareef University of Agriculture, Multan, 66000, Pakistan
| | - Ali Haider
- Faculty of Veterinary and Animal Sciences, Muhammad Nawaz Shareef University of Agriculture, Multan, 66000, Pakistan
| | - Faisal Riaz
- Faculty of Veterinary and Animal Sciences, Muhammad Nawaz Shareef University of Agriculture, Multan, 66000, Pakistan
| | - Riffat Yasin
- Department of Zoology, University of Education, D.G Khan Campus, Dera Ghazi Khan, Pakistan
| | - Muhammad Yaseen
- Department of Theriogenology, University of Veterinary and Animal Sciences, Lahore, 54000, Pakistan
| | - Muhammad Saleem
- Department of Theriogenology, University of Veterinary and Animal Sciences, Lahore, 54000, Pakistan
| | - Naheed Bano
- Faculty of Veterinary and Animal Sciences, Muhammad Nawaz Shareef University of Agriculture, Multan, 66000, Pakistan
| | - Muhammad Asif Raza
- Faculty of Veterinary and Animal Sciences, Muhammad Nawaz Shareef University of Agriculture, Multan, 66000, Pakistan
| | - Junaid Ali Khan
- Faculty of Veterinary and Animal Sciences, Muhammad Nawaz Shareef University of Agriculture, Multan, 66000, Pakistan
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9
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Nakagawa Y, Kaneko T. Improvement of survivability and developmental ability in vitrified rat oocytes. Cryobiology 2024; 115:104882. [PMID: 38452847 DOI: 10.1016/j.cryobiol.2024.104882] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 03/04/2024] [Accepted: 03/04/2024] [Indexed: 03/09/2024]
Abstract
Oocyte cryopreservation is useful for human fertility treatment and strain preservation in both experimental and domestic animals. However, the embryonic development of vitrified rat oocytes was lower than that of vitrified embryos. To increase the viability of vitrified oocytes, intracellular ice formation during cooling and warming must be prevented. Rapid warming is important to prevent ice formation. Furthermore, suppressing the spontaneous activation of oocytes is also important because vitrification promotes the spontaneous activation of rat oocytes, and thus compromise developmental competence of the gametes. MG132, a proteasome inhibitor, suppresses the spontaneous activation of rat oocytes. Here, we examined the effects of rapid warming and MG132 treatment on the survival and embryonic development of vitrified rat oocytes. The warming rate was adjusted by changing the vitrification solution volume and warming solution temperature. The survival rate of oocytes vitrified in 10 μL solution and warmed at 50 °C (94%) was significantly higher than that of oocytes vitrified in 100 μL and 10 μL solution and warmed at 37 °C (49% and 81%, respectively). Furthermore, the rate of embryonic development of vitrified oocytes treated with MG132 during vitrification, warming, and intracytoplasmic sperm injection (ICSI) (44%) was significantly higher than that of untreated gametes (10%). Offspring were obtained after transferring embryos derived from MG132-treated vitrified oocytes (14%). Altogether, the survivability of vitrified rat oocytes increased by rapid warming, and MG132 improved embryonic development after ICSI.
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Affiliation(s)
- Yuki Nakagawa
- Department of Chemistry and Biological Sciences, Faculty of Science and Engineering, Iwate University, Iwate, 020-8551, Japan
| | - Takehito Kaneko
- Department of Chemistry and Biological Sciences, Faculty of Science and Engineering, Iwate University, Iwate, 020-8551, Japan; Division of Fundamental and Applied Sciences, Graduate School of Science and Engineering, Iwate University, Iwate, 020-8551, Japan.
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10
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Lim ES, Lee SE, Park MJ, Han DH, Lee HB, Ryu B, Kim EY, Park SP. Piperine improves the quality of porcine oocytes by reducing oxidative stress. Free Radic Biol Med 2024; 213:1-10. [PMID: 38159890 DOI: 10.1016/j.freeradbiomed.2023.12.042] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 12/08/2023] [Accepted: 12/27/2023] [Indexed: 01/03/2024]
Abstract
Oxidative stress caused by light and high temperature arises during in vitro maturation (IVM), resulting in low-quality embryos compared with those obtained in vivo. To overcome this problem, we investigated the influence of piperine (PIP) treatment during maturation of porcine oocytes on subsequent embryo development in vitro. Porcine oocytes were cultured in IVM medium supplemented with 0, 50, 100, 200, or 400 μM PIP. After parthenogenetic activation, the blastocyst (BL) formation was significantly higher and the apoptosis rate was significantly lower using 200 μM PIP-treated oocytes (200 PIP). In the 200 PIP group, the level of reactive oxygen species at the metaphase II stage was decreased, accompanied by an increased level of glutathione and increased expression of antioxidant processes (Nrf2, CAT, HO-1, SOD1, and SOD2). Consistently, chromosome misalignment and aberrant spindle organization were alleviated and phosphorylated p44/42 mitogen-activated protein kinase activity was increased in the 200 PIP group. Expression of development-related (CDX2, NANOG, POU5F1, and SOX2), anti-apoptotic (BCL2L1 and BIRC5), and pro-apoptotic (BAK, FAS, and CASP3) processes was altered in the 200 PIP group. Ultimately, embryo development was improved in the 200 PIP group following somatic cell nuclear transfer. These findings suggest that PIP improves the quality of porcine oocytes by reducing oxidative stress, which inevitably arises via IVM. In-depth mechanistic studies of porcine oocytes will improve the efficiencies of assisted reproductive technologies.
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Affiliation(s)
- Eun-Seo Lim
- Faculty of Biotechnology, College of Applied Life Sciences, Jeju National University, 102 Jejudaehak-ro, Jeju, Jeju Special Self-Governing Province, 63243, South Korea; Stem Cell Research Center, Jeju National University, 102 Jejudaehak-ro, Jeju, Jeju Special Self-Governing Province, 63243, South Korea
| | - Seung-Eun Lee
- Department of Bio Medical Informatics, College of Applied Life Sciences, Jeju National University, 102 Jejudaehak-ro, Jeju, Jeju Special Self-Governing Province, 63243, South Korea; Cronex Co., 110 Hwangtalli-gil, Gangnae-myeon, Heungdeok-gu, Cheongju-si, Chungcheongbuk-do, 28174, South Korea
| | - Min-Jee Park
- Stem Cell Research Center, Jeju National University, 102 Jejudaehak-ro, Jeju, Jeju Special Self-Governing Province, 63243, South Korea
| | - Dong-Hun Han
- Faculty of Biotechnology, College of Applied Life Sciences, Jeju National University, 102 Jejudaehak-ro, Jeju, Jeju Special Self-Governing Province, 63243, South Korea; Stem Cell Research Center, Jeju National University, 102 Jejudaehak-ro, Jeju, Jeju Special Self-Governing Province, 63243, South Korea
| | - Han-Bi Lee
- Faculty of Biotechnology, College of Applied Life Sciences, Jeju National University, 102 Jejudaehak-ro, Jeju, Jeju Special Self-Governing Province, 63243, South Korea; Stem Cell Research Center, Jeju National University, 102 Jejudaehak-ro, Jeju, Jeju Special Self-Governing Province, 63243, South Korea
| | - Bokyeong Ryu
- Stem Cell Research Center, Jeju National University, 102 Jejudaehak-ro, Jeju, Jeju Special Self-Governing Province, 63243, South Korea; Department of Bio Medical Informatics, College of Applied Life Sciences, Jeju National University, 102 Jejudaehak-ro, Jeju, Jeju Special Self-Governing Province, 63243, South Korea
| | - Eun-Young Kim
- Faculty of Biotechnology, College of Applied Life Sciences, Jeju National University, 102 Jejudaehak-ro, Jeju, Jeju Special Self-Governing Province, 63243, South Korea; Stem Cell Research Center, Jeju National University, 102 Jejudaehak-ro, Jeju, Jeju Special Self-Governing Province, 63243, South Korea; Mirae Cell Bio, 1502 isbiz-tower 147, Seongsui-ro, Seongdong-gu, Seoul, 04795, South Korea
| | - Se-Pill Park
- Stem Cell Research Center, Jeju National University, 102 Jejudaehak-ro, Jeju, Jeju Special Self-Governing Province, 63243, South Korea; Department of Bio Medical Informatics, College of Applied Life Sciences, Jeju National University, 102 Jejudaehak-ro, Jeju, Jeju Special Self-Governing Province, 63243, South Korea; Mirae Cell Bio, 1502 isbiz-tower 147, Seongsui-ro, Seongdong-gu, Seoul, 04795, South Korea.
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11
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Hong YH, Jee BC. Blastocyst formation in vitrified-warmed preimplantation embryos derived from vitrified-warmed oocytes in a mouse model. Clin Exp Reprod Med 2024; 51:57-62. [PMID: 38433015 PMCID: PMC10914501 DOI: 10.5653/cerm.2023.06499] [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] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2023] [Revised: 01/14/2024] [Accepted: 01/16/2024] [Indexed: 03/05/2024] Open
Abstract
OBJECTIVE The purpose of this study was to use a mouse model to investigate the blastocyst formation rate in vitrified-warmed embryos derived from vitrified-warmed oocytes. METHODS Metaphase II oocytes obtained from BDF1 mice were vitrified and warmed, followed by fertilization with epididymal sperm. On day 3, a total of 176 embryos, at either the eight-cell or the morula stage, were vitrified-warmed (representing group 1). For group 2, 155 embryos at the same developmental stages were not vitrified, but rather were directly cultured until day 5. Finally, group 3 included day-5 blastocysts derived from fresh oocytes, which served as fresh controls. The primary outcome measured was the rate of blastocyst formation per day-3 embryo at the eight-cell or morula stage. RESULTS The rates of blastocyst formation per day-3 embryo were comparable between groups 1 and 2, at 64.5% and 69.7%, respectively (p>0.05). The formation rates of good-quality blastocysts (expanded, hatching, or hatched) were also similar for groups 1 and 2, at 35.5% and 43.2%, respectively (p>0.05). For the fresh oocytes (group 3), the blastocyst formation rate was 75.5%, which was similar to groups 1 and 2. However, the rate of good-quality blastocyst formation in group 3 was 57.3%, significantly exceeding those of group 1 (p=0.001) and group 2 (p=0.023). CONCLUSION Regarding developmental potential to the blastocyst stage, vitrified-warmed day-3 embryos originating from vitrified-warmed oocytes demonstrated comparable results to non-vitrified embryos from similar oocytes. These findings indicate that day-3 embryos derived from vitrified-warmed oocytes can be effectively cryopreserved without incurring cellular damage.
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Affiliation(s)
- Yeon Hee Hong
- Department of Obstetrics and Gynecology, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Republic of Korea
| | - Byung Chul Jee
- Department of Obstetrics and Gynecology, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Republic of Korea
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12
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Yang Z, Liu S, Pan X. Research progress on mitochondrial damage and repairing in oocytes: A review. Mitochondrion 2024; 75:101845. [PMID: 38237648 DOI: 10.1016/j.mito.2024.101845] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Revised: 01/04/2024] [Accepted: 01/14/2024] [Indexed: 01/26/2024]
Abstract
Oocytes are the female germ cells, which are susceptible to stress stimuli. The development of oocytes in the ovary is affected by many environmental and metabolic factors, food toxins, aging, and pathological factors. Mitochondria are the main target organelles of these factors, and the damage to mitochondrial structure and function can affect the production of ATP, the regulation of redox reactions, and apoptosis in oocytes. Mitochondrial damage is closely related to the decrease in oocyte quality and is the main factor leading to female infertility. Antioxidant foods or drugs have been used to prevent mitochondrial damage from some stressors or to repair damaged mitochondria, thereby improving oocyte development and female reproductive outcomes. In this paper, the damage of mitochondria during oocyte development by the above factors has been reviewed, and the relevant measures to alleviate the damage of mitochondria in oocytes have been discussed. Our findings may provide a theoretical basis and experimental basis for improving female fertility.
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Affiliation(s)
- Zheqing Yang
- Center for Reproductive Medicine, Jilin Medical University, Jilin 132013, Jilin, China
| | - Sitong Liu
- Department of Anatomy, Jilin Medical University, Jilin 132013, Jilin, China
| | - Xiaoyan Pan
- Center for Reproductive Medicine, Jilin Medical University, Jilin 132013, Jilin, China.
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Raad G, Tanios J, Serdarogullari M, Bazzi M, Mourad Y, Azoury J, Yarkiner Z, Liperis G, Fakih F, Fakih C. Mature oocyte dysmorphisms may be associated with progesterone levels, mitochondrial DNA content, and vitality in luteal granulosa cells. J Assist Reprod Genet 2024; 41:795-813. [PMID: 38363455 PMCID: PMC10957819 DOI: 10.1007/s10815-024-03053-5] [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: 12/11/2023] [Accepted: 02/01/2024] [Indexed: 02/17/2024] Open
Abstract
PURPOSE To identify whether follicular environment parameters are associated with mature oocyte quality, embryological and clinical outcomes. METHODS This retrospective study examined 303 mature oocytes from 51 infertile women undergoing ICSI cycles between May 2018 and June 2021. Exclusion criteria consisted of advanced maternal age (> 36 years old), premature ovarian failure, obesity in women, or use of frozen gametes. Luteal granulosa cells (LGCs) were analyzed for mitochondrial DNA/genomic (g) DNA ratio and vitality. The relationships between hormone levels in the follicular fluid and oocyte features were assessed. Quantitative morphometric measurements of mature oocytes were assessed, and the association of LGC parameters and oocyte features on live birth rate after single embryo transfer was examined. RESULTS Results indicated an inverse correlation between the mtDNA/gDNA ratio of LGCs and the size of polar body I (PBI). A 4.0% decrease in PBI size was observed with each one-unit increase in the ratio (p = 0.04). Furthermore, a 1% increase in LGC vitality was linked to a 1.3% decrease in fragmented PBI (p = 0.03), and a 1 ng/mL increase in progesterone levels was associated with a 0.1% rise in oocytes with small inclusions (p = 0.015). Associations were drawn among LGC characteristics, perivitelline space (PVS) debris, cytoplasmic inclusions, PBI integrity, and progesterone levels. Certain dysmorphisms in mature oocytes were associated with embryo morphokinetics; however, live birth rates were not associated with follicular parameters and oocyte quality characteristics. CONCLUSION Follicular markers may be associated with mature oocyte quality features.
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Affiliation(s)
- Georges Raad
- Al Hadi Laboratory and Medical Center, Beirut, Lebanon
- Faculty of Medicine and Medical Sciences, Holy Spirit University of Kaslik (USEK), Jounieh, Lebanon
| | | | - Munevver Serdarogullari
- Department of Histology and Embryology, Faculty of Medicine, Cyprus International University, Northern Cyprus Via Mersin 10, Mersin, Turkey
| | - Marwa Bazzi
- Al Hadi Laboratory and Medical Center, Beirut, Lebanon
| | - Youmna Mourad
- Al Hadi Laboratory and Medical Center, Beirut, Lebanon
| | - Joseph Azoury
- Azoury IVF Clinic, ObGyn and Infertility, Beirut, Lebanon
| | - Zalihe Yarkiner
- Faculty of Arts and Sciences-Department of Basic Sciences and Humanities, Cyprus International University, Northern Cyprus Via Mersin 10, Mersin, Turkey
| | - Georgios Liperis
- Westmead Fertility Centre, Institute of Reproductive Medicine, University of Sydney, Westmead, NSW, Australia.
| | - Fadi Fakih
- Al Hadi Laboratory and Medical Center, Beirut, Lebanon
| | - Chadi Fakih
- Al Hadi Laboratory and Medical Center, Beirut, Lebanon
- Faculty of Medicine, Lebanese University, Beirut, Lebanon
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Sventitskaya MA, Ogneva IV. Reorganization of the mouse oocyte' cytoskeleton after cultivation under simulated weightlessness. Life Sci Space Res (Amst) 2024; 40:8-18. [PMID: 38245351 DOI: 10.1016/j.lssr.2023.11.001] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 10/18/2023] [Accepted: 11/01/2023] [Indexed: 01/22/2024]
Abstract
Female germ cells provide the structural basis for the development of a new organism, while the main molecular mechanisms of the impact of weightlessness on the cell remain unknown. The aim of this work was to determine the relative content and distribution of the main proteins of microtubules and microfilaments, to assess the relative RNA content of genes in mouse oocytes after short-term exposure to simulated microgravity, and to determine the potential for embryo development up to the 3-cell stage. Before starting the study, BALB/c mice were divided into two groups. One group received water and standard food without any modifications. Before exposure to simulated microgravity, the oocytes of these animals were randomly divided into two groups - c and µg. The second group of animals additionally received essential phospholipids containing at least 80% phosphatidylcholines, per os for 6 weeks before the start of the experiment at a dosage of 350 mg/kg of the animal's body to modify the lipid composition of the oocyte membrane. The obtained oocytes of these animals were also randomly divided into two groups - ce and µge. To determine the protein distribution and its relative content, immunofluorescence analysis was performed, and the RNA content of genes was assessed using real-time PCR with reverse transcription. After cultivation under simulated microgravity, beta-actin and acetylated alpha-tubulin are redistributed from the cortical layer to the central part of the oocyte, and the relative content of acetylated alpha-tubulin and tubulin isoforms decreases. At the same time, the mRNA content of most genes encoding cytoskeletal proteins was significantly higher in comparison with the control level. The use of essential phospholipids led to a decrease in the content of cellular cholesterol in the oocyte and leveled changes in the content and redistribution of acetylated alpha-tubulin and beta-actin after cultivation under simulated microgravity. In addition, after in vitro fertilization and further cultivation under simulated weightlessness, we observed a decrease in the number of embryos that passed the stage of the 2-cell embryo, but while taking essential phospholipids, the number of embryos that reached the 3-cell stage did not differ from the control group. The results obtained show changes in the content and redistribution of cytoskeletal proteins in the oocyte, which may be involved in the process of pronucleus migration, the formation of the fission spindle and the contractile ring under simulated weightlessness, which may be important for normal fertilization and cleavage of the future embryo.
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Affiliation(s)
- Maria A Sventitskaya
- Cell Biophysics Laboratory, State Scientific Center of the Russian Federation Institute of Biomedical Problems of the Russian Academy of Sciences, 76a, Khoroshevskoyoeshosse, Moscow, 123007, Russia; I. M. Sechenov First Moscow State Medical University, 8-2 Trubetskaya St., Moscow, 119991, Russia.
| | - Irina V Ogneva
- Cell Biophysics Laboratory, State Scientific Center of the Russian Federation Institute of Biomedical Problems of the Russian Academy of Sciences, 76a, Khoroshevskoyoeshosse, Moscow, 123007, Russia; I. M. Sechenov First Moscow State Medical University, 8-2 Trubetskaya St., Moscow, 119991, Russia
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15
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Tire B, Talibova G, Ozturk S. The crosstalk between telomeres and DNA repair mechanisms: an overview to mammalian somatic cells, germ cells, and preimplantation embryos. J Assist Reprod Genet 2024; 41:277-291. [PMID: 38165506 PMCID: PMC10894803 DOI: 10.1007/s10815-023-03008-2] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Accepted: 12/12/2023] [Indexed: 01/03/2024] Open
Abstract
Telomeres are located at the ends of linear chromosomes and play a critical role in maintaining genomic stability by preventing premature activation of DNA repair mechanisms. Because of exposure to various genotoxic agents, telomeres can undergo shortening and genetic changes. In mammalian cells, the basic DNA repair mechanisms, including base excision repair, nucleotide excision repair, double-strand break repair, and mismatch repair, function in repairing potential damages in telomeres. If these damages are not repaired correctly in time, the unfavorable results such as apoptosis, cell cycle arrest, and cancerous transition may occur. During lifespan, mammalian somatic cells, male and female germ cells, and preimplantation embryos experience a number of telomeric damages. Herein, we comprehensively reviewed the crosstalk between telomeres and the DNA repair mechanisms in the somatic cells, germ cells, and embryos. Infertility development resulting from possible defects in this crosstalk is also discussed in the light of existing studies.
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Affiliation(s)
- Betul Tire
- Department of Histology and Embryology, Akdeniz University School of Medicine, Campus, 07070, Antalya, Turkey
| | - Gunel Talibova
- Department of Histology and Embryology, Akdeniz University School of Medicine, Campus, 07070, Antalya, Turkey
| | - Saffet Ozturk
- Department of Histology and Embryology, Akdeniz University School of Medicine, Campus, 07070, Antalya, Turkey.
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An H, Wang X, Li J, Sun H, Zhu S, Ge J, Han L, Shen B, Wang Q. KAS-seq profiling captures transcription dynamics during oocyte maturation. J Ovarian Res 2024; 17:23. [PMID: 38267939 PMCID: PMC10807090 DOI: 10.1186/s13048-023-01342-8] [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: 11/03/2023] [Accepted: 12/31/2023] [Indexed: 01/26/2024] Open
Abstract
In fully grown oocytes, the genome is considered to be globally transcriptionally silenced. However, this conclusion is primarily derived from the results obtained through immunofluorescence staining or inferred from the highly condensed state of chromosomes, lacking more direct evidence. Here, by using a kethoxal-assisted single-stranded DNA sequencing (KAS-seq) approach, we investigated the landscape of single-strand DNA (ssDNA) throughout the genome and provided a readout of the activity and dynamics of transcription during oocyte meiotic maturation. In non-surrounded nucleolus (NSN) oocytes, we observed a robust KAS-seq signal, indicating the high transcriptional activity. In surrounded nucleolus (SN) oocytes, the presence of ssDNA still persists although the KAS-seq signal was relatively weak, suggesting the presence of transcription. Accompanying with the meiotic resumption, the transcriptional activity gradually decreased, and global repression was detected in matured oocytes. Moreover, we preformed the integrative genomics analysis to dissect the transcriptional dynamics during mouse oocyte maturation. In sum, the present study delineates the detailed transcriptional activity during mammalian oocyte maturation.
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Affiliation(s)
- Huiqing An
- State Key Laboratory of Reproductive Medicine and Offspring Health, Changzhou Maternity and Child Health Care Hospital, Changzhou Medical Center, Nanjing Medical University, 101 Longmian Rd, Nanjing, 211166, China
| | - Xiuwan Wang
- State Key Laboratory of Reproductive Medicine and Offspring Health, Changzhou Maternity and Child Health Care Hospital, Changzhou Medical Center, Nanjing Medical University, 101 Longmian Rd, Nanjing, 211166, China
| | - Jiashuo Li
- State Key Laboratory of Reproductive Medicine and Offspring Health, Changzhou Maternity and Child Health Care Hospital, Changzhou Medical Center, Nanjing Medical University, 101 Longmian Rd, Nanjing, 211166, China
| | - Hongzheng Sun
- State Key Laboratory of Reproductive Medicine and Offspring Health, Changzhou Maternity and Child Health Care Hospital, Changzhou Medical Center, Nanjing Medical University, 101 Longmian Rd, Nanjing, 211166, China
| | - Shuai Zhu
- State Key Laboratory of Reproductive Medicine and Offspring Health, Changzhou Maternity and Child Health Care Hospital, Changzhou Medical Center, Nanjing Medical University, 101 Longmian Rd, Nanjing, 211166, China
| | - Juan Ge
- State Key Laboratory of Reproductive Medicine and Offspring Health, Changzhou Maternity and Child Health Care Hospital, Changzhou Medical Center, Nanjing Medical University, 101 Longmian Rd, Nanjing, 211166, China
| | - Longsen Han
- State Key Laboratory of Reproductive Medicine and Offspring Health, Changzhou Maternity and Child Health Care Hospital, Changzhou Medical Center, Nanjing Medical University, 101 Longmian Rd, Nanjing, 211166, China
| | - Bin Shen
- State Key Laboratory of Reproductive Medicine and Offspring Health, Changzhou Maternity and Child Health Care Hospital, Changzhou Medical Center, Nanjing Medical University, 101 Longmian Rd, Nanjing, 211166, China
| | - Qiang Wang
- State Key Laboratory of Reproductive Medicine and Offspring Health, Changzhou Maternity and Child Health Care Hospital, Changzhou Medical Center, Nanjing Medical University, 101 Longmian Rd, Nanjing, 211166, China.
- Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, 211166, China.
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Baldassarre H, Gutierrez K, Glanzner WG, de Macedo MP, Currin L, Guay V, Herrera MEC, Da Silva Z, Fortin F, Bordignon V. Laparoscopic ovum-pick up and in vitro embryo production in gonadotropin-stimulated gilts: Preliminary results and envisioned applications. Theriogenology 2024; 214:141-147. [PMID: 37871373 DOI: 10.1016/j.theriogenology.2023.10.017] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 10/14/2023] [Accepted: 10/15/2023] [Indexed: 10/25/2023]
Abstract
The present study was conducted to establish if laparoscopic ovum pick-up (LOPU) could be adapted to the swine species, and if the developmental competence of LOPU-sourced oocytes from peripubertal gilts could be improved by gonadotropin stimulation, by comparing with oocytes sourced from slaughtered gilts lacking hormonal stimulation. Estrus was synchronized in 34 gilts of ∼6-8 months of age by daily oral administration of 17.6 mg altrenogest for 13 days and 10 mg dinoprost IM on the last day of altrenogest. Follicular development was stimulated in all gilts with a single injection of 1250 IU eCG given 3 days before LOPU (together with the 12th dose of altrenogest). In about half of the gilts (Group eCG-hCG), 500 IU hCG were injected IM ∼72 h after eCG injection, or ∼16-18 h prior to LOPU, to initiate oocyte maturation in vivo, while the remaining animals only received eCG (Group eCG). Most gilts underwent LOPU twice alternating the gonadotropin protocol, thereby decreasing the impact of individual variation on results. Abattoir-sourced oocytes from prepubertal gilts served as Control. Following LOPU, oocytes were in vitro matured, fertilized, and cultured to the blastocyst stage following standard procedures, while oocytes collected from Group eCG-hCG gilts were considered partly matured in vivo and were matured for ∼24 h instead of ∼44 h. Embryos reaching the blastocyst stage were fixed and stained to assess quality through cell numbers. There were no significant differences in the number of follicles aspirated and cumulus-oocyte complexes (COCs) recovered between Groups eCG-hCG and eCG (22.4 and 16.9 vs. 22.6 and 17.6, P > 0.05), as well as the recovery rate (76.6 vs. 78.1, P > 0.05). Cleavage rate was not different between Group eCG-hCG, Group eCG and Control (61.1 vs. 64.4 vs. 53.4 %, P > 0.05). However, the blastocyst rate over total oocytes (32.2 vs. 36.9 vs. 11.1 %, P < 0.05), blastocyst rate over cleaved oocytes (51.8 vs. 55.1 vs. 21.2 %, P < 0.01) and the average number of cells/blastocyst (89.6 vs. 87.5 vs. 62.2, P < 0.01) were unaffected by hCG treatment in LOPU-sourced oocytes, but both LOPU groups were significantly higher than abattoir-sourced oocytes, respectively. Our results suggest LOPU may become a powerful tool for sourcing swine oocytes with higher developmental competence than abattoir-sourced oocytes and known disease status for creating swine models for human biomedical applications, as well as for accelerated genetic gain in swine breeding programs.
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Affiliation(s)
- Hernan Baldassarre
- Department of Animal Science, McGill University, Sainte-Anne-de-Bellevue, Quebec, Canada
| | - Karina Gutierrez
- Department of Animal Science, McGill University, Sainte-Anne-de-Bellevue, Quebec, Canada
| | - Werner Giehl Glanzner
- Department of Animal Science, McGill University, Sainte-Anne-de-Bellevue, Quebec, Canada
| | | | - Luke Currin
- Department of Animal Science, McGill University, Sainte-Anne-de-Bellevue, Quebec, Canada
| | - Vanessa Guay
- Department of Animal Science, McGill University, Sainte-Anne-de-Bellevue, Quebec, Canada
| | | | - Zigomar Da Silva
- Department of Animal Science, McGill University, Sainte-Anne-de-Bellevue, Quebec, Canada
| | - Frederic Fortin
- Centre de Development du Porc du Quebec, Lévis, Quebec, Canada
| | - Vilceu Bordignon
- Department of Animal Science, McGill University, Sainte-Anne-de-Bellevue, Quebec, Canada.
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Reuvenny S, Youngster M, Luz A, Hourvitz R, Maman E, Baum M, Hourvitz A. An artificial intelligence-based approach for selecting the optimal day for triggering in antagonist protocol cycles. Reprod Biomed Online 2024; 48:103423. [PMID: 37984005 DOI: 10.1016/j.rbmo.2023.103423] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Revised: 09/06/2023] [Accepted: 09/22/2023] [Indexed: 11/22/2023]
Abstract
RESEARCH QUESTION Can a machine-learning model suggest an optimal trigger day (or days), analysing three consecutive days, to maximize the number of total and mature (metaphase II [MII]) oocytes retrieved during an antagonist protocol cycle? DESIGN This retrospective cohort study included 9622 antagonist cycles between 2018 and 2022. The dataset was divided into training, validation and test sets. An XGBoost machine-learning algorithm, based on the cycles' data, suggested optimal trigger days for maximizing the number of MII oocytes retrieved by considering the MII predictions, prediction errors and outlier detection results. Evaluation of the algorithm was conducted using a test dataset including three quality groups: 'Freeze-all oocytes', 'Fertilize-all' and 'ICSI-only' cycles. The model suggested 1, 2 or 3 days as trigger options, depending on the difference in potential outcomes. The suggested days were compared with the actual trigger day chosen by the physician and were labelled 'concordant' or 'discordant' in terms of agreement. RESULTS In the 'freeze-all' test-set, the concordant group showed an average increase of 4.8 oocytes and 3.4 MII oocytes. In the 'ICSI-only' test set there was an average increase of 3.8 MII oocytes and 1.1 embryos, and in the 'fertilize-all' test set an average increase of 3.6 oocytes and 0.9 embryos was observed (P < 0.001 for all parameters in all groups). CONCLUSIONS Utilizing a machine-learning model for determining the optimal trigger days may improve antagonist protocol cycle outcomes across all age groups in freeze-all or fresh transfer cycles. Implementation of these models may more accurately predict the number of oocytes retrieved, thus optimizing physicians' decisions, balancing workloads and creating more standardized, yet patient-specific, protocols.
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Affiliation(s)
| | - Michal Youngster
- Sackler School of Medicine, Tel Aviv University, Tel-Aviv, Israel.; IVF Unit, Department of Obstetrics and Gynecology, Shamir Medical Center, Zerifin, Israel..
| | | | | | - Ettie Maman
- FertilAI, Ramat-Gan, Israel.; Sackler School of Medicine, Tel Aviv University, Tel-Aviv, Israel.; IVF Unit, Herzliya Medical Centre, Herzliya, Israel.; IVF Unit, Department of Obstetrics and Gynecology, Sheba Medical Centre, Ramat-Gan, Israel
| | - Micha Baum
- FertilAI, Ramat-Gan, Israel.; Sackler School of Medicine, Tel Aviv University, Tel-Aviv, Israel.; IVF Unit, Herzliya Medical Centre, Herzliya, Israel.; IVF Unit, Department of Obstetrics and Gynecology, Sheba Medical Centre, Ramat-Gan, Israel
| | - Ariel Hourvitz
- FertilAI, Ramat-Gan, Israel.; Sackler School of Medicine, Tel Aviv University, Tel-Aviv, Israel.; IVF Unit, Department of Obstetrics and Gynecology, Shamir Medical Center, Zerifin, Israel
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de Lima CB, Milazzotto MP, Vireque AA, Joaquim DC, Sobreira TJP, Ferreira CR. Effect of lipid extraction and room temperature transportation of bovine oocytes determined by MRM profiling. Res Sq 2023:rs.3.rs-3788683. [PMID: 38196623 PMCID: PMC10775384 DOI: 10.21203/rs.3.rs-3788683/v1] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/11/2024]
Abstract
Lipids play many important physiological roles in mammalian reproduction, being essential for the acquisition of oocyte competence and post-fertilization embryonic development. Lipid profiling in samples of minute size, such as oocytes, is challenging but has been achieved by mass spectrometry technologies such as multiple reaction monitoring (MRM) profiling. With the goals of further simplifying sample workflow and investigating the influence of pre-analytical conditions, we have evaluated how different extraction methods and transportation of lipid extracts in vacuum and at room temperature impacted the lipid profile of bovine oocytes. Using a comprehensive method, 316 MRMs associated with lipids of 10 different classes were screened in oocyte lipid extracts prepared by 2 extraction methods (one-step methanol addition or Bligh and Dyer) and transporting them in dry ice or at room temperature inside vacuum packages. No changes in the multivariate analysis (PCA) were noticeable due to transportation temperature, while lipid profiles were more affected by the lipid extraction protocol. Sample extraction using pure methanol favored the detection of phospholipids uniformly, while Bligh and Dyer favored the detection of neutral intracellular lipids. Triacylglycerol lipids and free fatty acids yielded decreased abundances when samples were transported at room temperature. We conclude that if samples are submitted to the same lipid extraction protocol and same transportation batch at room temperature coupled with vacuum conditions it is possible to analyze lipid extracts of bovine oocytes and still obtain informative lipid profiling results.
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Todrin AF, Kovalenko IF, Smolyaninova YI, Timofeyeva OV, Popivnenko LI, Gordiyenko OI. Determination of cell membrane permeability coefficients: Comparison of models in the case of oocytes. Cryobiology 2023; 113:104789. [PMID: 37924929 DOI: 10.1016/j.cryobiol.2023.104789] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2023] [Revised: 09/29/2023] [Accepted: 11/01/2023] [Indexed: 11/06/2023]
Abstract
Values of cell membranes permeability coefficients for water and molecules of cryoprotective agents (CPAs) are the necessary characteristics for developing physical-mathematical models describing mass transfer processes through cell membranes in order to predict optimal cell cooling rates. We carried out a comparative analysis of the permeability coefficients of mouse oocyte membranes for molecules of water, ethylene glycol (EG), propane-1,2-diol (1,2-PD) and dimethyl sulfoxide (Me2SO), determined by applying the classical Kedem-Katchalsky model, which considers only the penetration of non-electrolyte molecules (water and CPA) through the membrane, and the model developed by us, which takes into account the transmembrane transfer of ions and the associated changes in the transmembrane electric potential. We shown that calculations based on the developed modified model provide lower values of the permeability coefficients of the oocyte membrane for water and CPA molecules. What is important that the obtained by our modified model permeability coefficients for water molecules do not depend on the type of cryoprotectant, while the application of the classical model both in our studies and works of other authors always gave different values of these coefficients in solutions with different cryoprotectants. Our modified model also makes it possible to determine the dynamics of the transmembrane electric potential of the cell under the conditions of transmembrane mass transfer and the duration of the membrane being influenced by the changes in electric potential, that is a parameter that can directly affect the viability of cells.
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Affiliation(s)
- A F Todrin
- Institute for Problems of Cryobiology and Cryomedicine, National Academy of Sciences of Ukraine, 23, Pereyaslavskaya str., 61016, Kharkiv, Ukraine.
| | - I F Kovalenko
- Institute for Problems of Cryobiology and Cryomedicine, National Academy of Sciences of Ukraine, 23, Pereyaslavskaya str., 61016, Kharkiv, Ukraine.
| | - Ye I Smolyaninova
- Institute for Problems of Cryobiology and Cryomedicine, National Academy of Sciences of Ukraine, 23, Pereyaslavskaya str., 61016, Kharkiv, Ukraine.
| | - O V Timofeyeva
- Institute for Problems of Cryobiology and Cryomedicine, National Academy of Sciences of Ukraine, 23, Pereyaslavskaya str., 61016, Kharkiv, Ukraine
| | - L I Popivnenko
- Institute for Problems of Cryobiology and Cryomedicine, National Academy of Sciences of Ukraine, 23, Pereyaslavskaya str., 61016, Kharkiv, Ukraine.
| | - O I Gordiyenko
- Institute for Problems of Cryobiology and Cryomedicine, National Academy of Sciences of Ukraine, 23, Pereyaslavskaya str., 61016, Kharkiv, Ukraine.
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Najafian A, Alyasin A, Aghahosseini M, Hosseinimousa S, Kazemi SN. Beneficial effects of intraovarian injection of platelet-rich plasma in women with poor ovarian response. Clin Exp Reprod Med 2023; 50:285-291. [PMID: 37995757 DOI: 10.5653/cerm.2023.06086] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2023] [Accepted: 07/19/2023] [Indexed: 11/25/2023] Open
Abstract
OBJECTIVE Infertility can result from a diminished ovarian reserve, but a potential remedy exists in the form of platelet-rich plasma (PRP) administration. This treatment involves both biological factors and tissue trauma mechanisms, which stimulate folliculogenesis, making it a promising and effective strategy. We assessed the impact of direct PRP injections into the ovaries on the fertility outcomes of women classified as poor responders. METHODS A quasi-experimental study was conducted from April 2021 to December 2022, focusing on patients classified as POSEIDON grade 3 or 4. PRP injections were administered into both ovaries. After 3 months, data were collected on anti-Müllerian hormone (AMH) level, follicle-stimulating hormone (FSH) level, and the numbers of oocytes, mature oocytes, and good-quality embryos following ovarian stimulation. We then compared the data from before and after PRP injection. RESULTS This study included 50 women, with a mean of 39 years (interquartile range [IQR], 35 to 43) and 4 years (IQR, 2 to 6) for age and infertility duration, respectively. FSH levels decreased after treatment, while AMH levels and the numbers of oocytes, metaphase II oocytes, and high-quality embryos increased. However, only the increase in high-quality embryos was significant. The pregnancy and spontaneous pregnancy rates were 20% and 14%, respectively. Notably, women with secondary infertility exhibited a significantly higher pregnancy rate than those with primary infertility. CONCLUSION Ample evidence suggests that PRP can enhance ovarian function. However, further studies are needed to identify the appropriate candidates for this procedure, establish the optimal PRP preparation method, and standardize the procedure for its adjuvant use in assisted reproductive technology cycles.
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Affiliation(s)
- Aida Najafian
- Department of Infertility, Shariati Hospital, Tehran University of Medical Science, Tehran, Iran
| | - Ashraf Alyasin
- Department of Obstetrics and Gynecology and Female Infertility Unit, Tehran University of Medical Sciences, Tehran, Iran
| | - Marziyeh Aghahosseini
- Department of Obstetrics and Gynecology and Female Infertility Unit, Tehran University of Medical Sciences, Tehran, Iran
| | - Sedigheh Hosseinimousa
- Department of Obstetrics and Gynecology and Female Infertility Unit, Tehran University of Medical Sciences, Tehran, Iran
| | - Seyyedeh Neda Kazemi
- Department of Obstetrics and Gynecology and Female Infertility Unit, Tehran University of Medical Sciences, Tehran, Iran
- Department of Obstetrics and Gynecology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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22
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Qiu J, Matsukawa K, Edashige K. Equilibrium vitrification of oocytes using low concentrations of cryoprotectants. Cryobiology 2023; 113:104586. [PMID: 37722470 DOI: 10.1016/j.cryobiol.2023.104586] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 09/05/2023] [Accepted: 09/15/2023] [Indexed: 09/20/2023]
Abstract
In order to make dry ice transportation of vitrified embryos practical, a near-equilibrium vitrification was developed using a cryoprotectant solution (EDFS10/10a), by which mouse embryos at various stages were vitrified in a near-equilibrium environment. EDFS10/10a consisted of 10% (v/v) ethylene glycol, 10% (v/v) Me2SO, 0.4 M sucrose and 24% (w/v) Ficoll PM70. This method exhibited the benefits of slow freezing and vitrification, with a low risk of osmotic injury. In this study, we investigated whether mouse oocytes are vitrifiable with EDFS10/10a in a highly dehydrated/concentrated state, and whether they can remain fertilizable and developing into embryos after vitrification. When mature mouse oocytes were vitrified in liquid nitrogen and after 4-28 days of storage at -80 °C, high survival rates were observed (88-99%). Vitrified and warmed oocytes were subjected to partial zona dissection and in vitro fertilized. The rate of 2-cell stage was 80-82%. Blastocyst formation rate was 55-70% which was similar to that of embryos derived from fresh oocytes. After the 2-cell embryos were transferred to recipient mice, the implantation and offspring rates did not differ significantly from those of embryos derived from fresh oocytes, indicating that vitrified oocytes retained the developmental ability. Therefore, it is possible to vitrify mouse oocytes in a near-equilibrium state using EDFS10/10a and conveniently transported using dry ice.
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Affiliation(s)
- Juan Qiu
- Reproductive Medicine Center, Longhua Maternity and Child Healthcare Hospital, Shenzhen, Guangdong, China; Laboratory of Animal Science, College of Agriculture, Kochi University, Nankoku, Kochi, Japan
| | - Kazutsugu Matsukawa
- Laboratory of Animal Science, College of Agriculture, Kochi University, Nankoku, Kochi, Japan
| | - Keisuke Edashige
- Laboratory of Animal Science, College of Agriculture, Kochi University, Nankoku, Kochi, Japan.
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23
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Kim EP, Kim DY, Park C, Yoo SM, Lee MS, Kim GA. Effects of klotho protein or klotho knockdown in porcine oocytes at different stages. ZYGOTE 2023; 31:577-581. [PMID: 37905414 DOI: 10.1017/s096719942300045x] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2023]
Abstract
Klotho is a protein that plays different functions in female fertility. We have previously reported that klotho protein supplementation during in vitro maturation improves porcine embryo development, while klotho knockout for somatic cell cloning completely blocks full-term pregnancy in vivo. However, the effects of the microinjection of klotho protein or klotho knockdown dual vector in porcine embryos at different time points and the specific molecular mechanisms remain largely unknown. In this study, we injected the preassembled cas9 + sgRNA dual vector, for klotho knockdown, into the cytoplasm of the germinal vesicle stage of oocytes and into porcine embryos after 6-h parthenogenetic activation. Similarly, the klotho protein was inserted into the cytoplasm of germinal vesicle stage oocytes and porcine embryos after 6-h parthenogenetic activation. Compared with the controls, the microinjection of klotho dual vector markedly decreased the blastocyst formation rates in germinal vesicle stage oocytes and activated embryos. However, the efficiency of blastocyst formation when klotho protein was inserted before in vitro maturation was significantly higher than that after klotho protein insertion into parthenogenetically activated embryos. These results indicated that klotho knockdown may impair embryo development into blastocyst irrespective of injection timing. In addition, klotho protein injection timing in pig embryos may be an important factor for regulating embryo development.
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Affiliation(s)
- Eun Pyo Kim
- Department of Theriogenology and Biotechnology, Research Institute for Veterinary Science, College of Veterinary Medicine, Seoul National University, Seoul, Republic of Korea
| | | | - Changhoon Park
- Department of Microbiology and Immunology, Eulji University School of Medicine, Daejeon, South Korea
| | - Seung-Min Yoo
- Department of Microbiology and Immunology, Eulji University School of Medicine, Daejeon, South Korea
| | - Myung-Shin Lee
- Department of Microbiology and Immunology, Eulji University School of Medicine, Daejeon, South Korea
| | - Geon A Kim
- Department of Biomedical Laboratory Science, University of Health Science, Eulji University, Uijeongbu, Republic of Korea
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24
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Ozcan MCH, Cruz L, Woodman MF, Gundogan F, Grive KJ. Fetal Ovarian Reserve: the Dynamic Changes in Ubiquitin C-Terminal Hydrolase L1. Reprod Sci 2023; 30:3353-3358. [PMID: 37277688 DOI: 10.1007/s43032-023-01275-z] [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: 09/26/2022] [Accepted: 05/21/2023] [Indexed: 06/07/2023]
Abstract
The regulation of protein turnover by the unique deubiquitinating enzyme ubiquitin C-terminal hydrolase L1 (UCHL1) is only seen in oocytes, spermatogonia, and neurons. Our objective was to investigate variation in expression of UCHL1 across fetal maturation of oocytes that result in lifelong ovarian reserve. We performed a retrospective cohort study of 25 fetal autopsy specimens from 21 to 36 weeks. This was an IRB-approved protocol with parental permission for use of tissues for research purposes. Tissues were stained for expression of the oocyte-specific protein UCHL1, and expression levels were evaluated using quantitative immunofluorescence across gestational ages after correction for the area and background absorbance. Corrected total cell fluorescence (CTCF) for expression of UCHL1 within human oocytes was compared across fetal gestational ages and oocyte size. Trends were analyzed using a locally weighted scatterplot smoothing algorithm. Local expression of UCHL1 increases in oocytes across ovarian development reaching a plateau at 27 weeks with the maintenance of elevated levels through 36 weeks gestational age. This maturation trend is also evidenced by the increase in protein expression as oocyte area increases (r = 0.5530, p ≤ 0.001) with the largest rise occurring as oocytes are enveloped into primordial follicles. The increase in expression as oocytes transition from oogonia into oocytes in primordial follicles and beyond may be part of the preparation of both oocytes and the surrounding somatic cells for the long-term maintenance of the ovarian reserve.
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Affiliation(s)
- Meghan C H Ozcan
- Women & Infant's Hospital, Warren Alpert Medical School of Brown University, 200 Chestnut St, Providence, RI, USA.
| | - Lisa Cruz
- F. Edward Hebert School of Medicine, Uniformed Services University of the Health Sciences, Jones Bridge Rd, Bethesda, MD, 20814, USA
| | | | - Fusun Gundogan
- Women & Infant's Hospital, Warren Alpert Medical School of Brown University, 101 Dudley St, Providence, RI, USA
| | - Kathryn J Grive
- Women & Infant's Hospital, Warren Alpert Medical School of Brown University, 200 Chestnut St, Providence, RI, USA
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25
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Wu Q, Ru G, Xiao W, Wang Q, Li Z. Adverse effects of ovarian cryopreservation and auto-transplantation on ovarian grafts and quality of produced oocytes in a mouse model. Clin Sci (Lond) 2023; 137:1577-1591. [PMID: 37782233 PMCID: PMC10600147 DOI: 10.1042/cs20230483] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 07/24/2023] [Accepted: 10/02/2023] [Indexed: 10/03/2023]
Abstract
The process of ovarian cryopreservation and transplantation is the only feasible fertility preservation method for prepubertal girls and female patients with cancer who cannot delay radiotherapy and chemotherapy. However, basic research on this technique is lacking. To better understand ovarian function and oocyte quality after ovarian tissue (OT) transplantation, we characterised the appearance, angiogenesis, and endocrine function of ovarian grafts in a murine model; the mitochondrial function and DNA damage in oocytes isolated from the OT; and the development of embryos after in vitro fertilisation. The results showed a decrease in oocyte numbers in the transplanted OT, abnormal endocrine function of ovarian grafts, as well as dysfunctional mitochondria and DNA damage in the oocytes, which could adversely affect subsequent embryonic development. However, these adverse phenotypes were partially or completely resolved within 21 days of transplantation, suggesting that ovulation induction and assisted pregnancy treatment should not be conducted too soon after OT transfer to ensure optimal patient and offspring outcomes.
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Affiliation(s)
- Que Wu
- Reproductive Center, First Affiliated Hospital of Shantou University Medical College, Shantou University, Shantou City, 515041, Guangdong, China
| | - Gaizhen Ru
- Reproductive Center, First Affiliated Hospital of Shantou University Medical College, Shantou University, Shantou City, 515041, Guangdong, China
| | - Wanfen Xiao
- Reproductive Center, First Affiliated Hospital of Shantou University Medical College, Shantou University, Shantou City, 515041, Guangdong, China
| | - Qian Wang
- Reproductive Center, First Affiliated Hospital of Shantou University Medical College, Shantou University, Shantou City, 515041, Guangdong, China
| | - Zhiling Li
- Reproductive Center, First Affiliated Hospital of Shantou University Medical College, Shantou University, Shantou City, 515041, Guangdong, China
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26
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He Z, Zhang J, Chen Y, Ai C, Gong X, Xu D, Wang H. Transgenerational inheritance of adrenal steroidogenesis inhibition induced by prenatal dexamethasone exposure and its intrauterine mechanism. Cell Commun Signal 2023; 21:294. [PMID: 37853416 PMCID: PMC10585925 DOI: 10.1186/s12964-023-01303-0] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Accepted: 08/30/2023] [Indexed: 10/20/2023] Open
Abstract
BACKGROUND Adrenal gland is the synthesis and secretion organ of glucocorticoid, which is crucial to fetal development and postnatal fate. Recently, we found that prenatal dexamethasone exposure (PDE) could cause adrenal dysfunction in offspring rats, but its multigenerational genetic effects and related mechanisms have not been reported. METHODS The PDE rat model was established, and female filial generation 1 (F1) rats mate with wild males to produce the F2, the same way for the F3. Three generation rats were sacrificed for the related detection. SW-13 cells were used to clarify the epigenetic molecular mechanism. RESULTS This study confirmed that PDE could activate fetal adrenal glucocorticoid receptor (GR). The activated GR, on the one hand, up-regulated Let-7b (in human cells) to inhibit steroidogenic acute regulatory protein (StAR) expression directly; on the other hand, down-regulated CCCTC binding factor (CTCF) and up-regulated DNA methyltransferase 3a/3b (Dnmt3a/3b), resulting in H19 hypermethylation and low expression. The decreased interaction of H19 and let-7 can further inhibit adrenal steroidogenesis. Additionally, oocytes transmitted the expression change of H19/let-7c axis to the next generation rats. Due to its genetic stability, F2 generation oocytes indirectly exposed to dexamethasone also inhibited H19 expression, which could be inherited to the F3 generation. CONCLUSIONS This cascade effect of CTCF/H19/Let-7c ultimately resulted in the transgenerational inheritance of adrenal steroidogenesis inhibition of PDE offspring. This study deepens the understanding of the intrauterine origin of adrenal developmental toxicity, and it will provide evidence for the systematic analysis of the transgenerational inheritance effect of acquired traits induced by PDE. Video Abstract.
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Affiliation(s)
- Zheng He
- Department of Pharmacology, Wuhan University School of Basic Medical Sciences, Wuhan, 430071, Hubei Province, China
- Department of Pharmacy, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Jinzhi Zhang
- Department of Pharmacology, Wuhan University School of Basic Medical Sciences, Wuhan, 430071, Hubei Province, China
| | - Yawen Chen
- Department of Pharmacology, Wuhan University School of Basic Medical Sciences, Wuhan, 430071, Hubei Province, China
| | - Can Ai
- Department of Pharmacology, Wuhan University School of Basic Medical Sciences, Wuhan, 430071, Hubei Province, China
| | - Xiaohan Gong
- Department of Pharmacology, Wuhan University School of Basic Medical Sciences, Wuhan, 430071, Hubei Province, China
| | - Dan Xu
- Department of Pharmacology, Wuhan University School of Basic Medical Sciences, Wuhan, 430071, Hubei Province, China
- Hubei Provincial Key Laboratory of Developmentally Originated Disorder, Wuhan, 430071, China
| | - Hui Wang
- Department of Pharmacology, Wuhan University School of Basic Medical Sciences, Wuhan, 430071, Hubei Province, China.
- Hubei Provincial Key Laboratory of Developmentally Originated Disorder, Wuhan, 430071, China.
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Heydari L, Khalili MA, Rahimi AA, Shakeri F. Human embryos derived from first polar body nuclear transfer exhibit comparatively abnormal morphokinetics during development. Clin Exp Reprod Med 2023; 50:177-184. [PMID: 37643831 PMCID: PMC10477411 DOI: 10.5653/cerm.2023.05939] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 05/25/2023] [Accepted: 06/10/2023] [Indexed: 08/31/2023] Open
Abstract
OBJECTIVE Reconstructed oocytes after polar body genome transfer constitute a potential therapeutic option for patients with a history of embryo fragmentation and advanced maternal age. However, the rescue of genetic material from the first polar body (PB1) through introduction into the donor cytoplasm is not yet ready for clinical application. METHODS Eighty-five oocytes were obtained following in vitro maturation (IVM) and divided into two groups: PB1 nuclear transfer (PB1NT; n=54) and control (n=31). Following enucleation and PB1 genomic transfer, PB1 fusion was assessed. Subsequently, all fused oocytes underwent intracytoplasmic sperm injection (ICSI) and were cultured in an incubator under a time-lapse monitoring system to evaluate fertilization, embryonic morphokinetic parameters, and cleavage patterns. RESULTS Following enucleation and fusion, 77.14% of oocytes survived, and 92.59% of polar bodies (PBs) fused. However, the normal fertilization rate was lower in the PB1NT group than in the control group (56.41% vs. 92%, p=0.002). No significant differences were observed in embryo kinetics between the groups, but a significant difference was detected in embryo developmental arrest after the four-cell stage, along with abnormal cleavage division in the PB1NT group. This was followed by significant between-group differences in the implantation potential rate and euploidy status. Most embryos in the PB1NT group had at least one abnormal cleavage division (93.3%, p=0.001). CONCLUSION Fresh PB1NT oocytes successfully produced normal zygotes following PB fusion and ICSI in IVM oocytes. However, this was accompanied by low efficiency in developing into cleavage embryos, along with an increase in abnormal cleavage patterns.
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Affiliation(s)
- Leila Heydari
- Research and Clinical Center for Infertility, Yazd Reproductive Science Institute, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Mohammad Ali Khalili
- Research and Clinical Center for Infertility, Yazd Reproductive Science Institute, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Azam Agha Rahimi
- Research and Clinical Center for Infertility, Yazd Reproductive Science Institute, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Fatemeh Shakeri
- Research and Clinical Center for Infertility, Yazd Reproductive Science Institute, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
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Mirsanei JS, Gholipour H, Zandieh Z, Jahromi MG, Masroor MJ, Mehdizadeh M, Amjadi F. Transition nuclear protein 1 as a novel biomarker in patients with fertilization failure. Clin Exp Reprod Med 2023; 50:185-191. [PMID: 37643832 PMCID: PMC10477415 DOI: 10.5653/cerm.2023.05890] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Revised: 05/15/2023] [Accepted: 06/07/2023] [Indexed: 08/31/2023] Open
Abstract
OBJECTIVE Although intracytoplasmic sperm injection (ICSI) is a way to deal with in vitro fertilization failure, 3% of couples still experience repeated fertilization failure after attempted ICSI, despite having sperm within normal parameters. These patients are a challenging group whose sperm cannot fertilize the egg during ICSI. Unfortunately, no test can predict the risk of fertilization failure. Phospholipase C zeta (PLCζ) and transition nuclear proteins (TNPs) are essential factors for chromatin packaging during sperm maturation. This study aimed to assess PLCζ1 and TNP1 expression in the sperm of patients with fertilization failure and the correlations among the DNA fragmentation index, PLCζ1 and TNP1 gene and protein expression, and the risk of fertilization failure. METHODS In this study, 12 infertile couples with low fertilization rates (<25%) and complete failure of fertilization in their prior ICSI cycles despite normal sperm parameters were chosen as the case group. Fifteen individuals who underwent ICSI for the first time served as the control group. After sperm analysis and DNA fragmentation assays, quantitative reverse-transcription polymerase chain reaction (qRT-PCR) and Western blot analyses were performed to compare the gene and protein expression of PLCζ and TNP1 in both groups. RESULTS DNA fragmentation was significantly higher in the fertilization failure group. The qRT-PCR and Western blot results demonstrated significantly lower PLCζ and TNP1 gene and protein expression in these patients than in controls. CONCLUSION The present study showed that fertilization failure in normozoospermic men was probably due to deficient DNA packaging and expression of TNP1.
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Affiliation(s)
- Jamileh Sadat Mirsanei
- Department of Anatomy, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Hadis Gholipour
- Department of Anatomy, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Zahra Zandieh
- Reproductive Sciences and Technology Research Center, Department of Anatomical Sciences, Iran University of Medical Sciences, Tehran, Iran
| | - Masoumeh Golestan Jahromi
- Department of Advanced Medical Sciences and Technologies, School of Medicine, Jahrom University of Medical Sciences, Jahrom, Iran
| | - Mojgan Javedani Masroor
- Shahid Akbarabadi Clinical Research Development Unit (ShACRDU), Iran University of Medical Sciences, Tehran, Iran
| | - Mehdi Mehdizadeh
- Reproductive Sciences and Technology Research Center, Department of Anatomical Sciences, Iran University of Medical Sciences, Tehran, Iran
| | - Fatemehsadat Amjadi
- Reproductive Sciences and Technology Research Center, Department of Anatomical Sciences, Iran University of Medical Sciences, Tehran, Iran
- Shahid Akbarabadi Clinical Research Development Unit (ShACRDU), Iran University of Medical Sciences, Tehran, Iran
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29
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Alexeeva N, Tamberg Y. Ultrastructure of the female pedal gonad in Phoxichilidium femoratum (Chelicerata, Pycnogonida). Arthropod Struct Dev 2023; 76:101295. [PMID: 37722770 DOI: 10.1016/j.asd.2023.101295] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Revised: 07/19/2023] [Accepted: 07/21/2023] [Indexed: 09/20/2023]
Abstract
Phoxichilidium femoratum is a common species of sea spiders - a small and unique group of chelicerates with unusual adult anatomy. In particular, substantial parts of the reproductive system in pycnogonids (unlike euchelicerates) are located in the appendages. Existing studies of pycnogonid gonads are often limited to light-microscopic level, cover a small range of species, and focus on the contents of the gonad diverticula. Ultrastructural data are rare and contradictory, and the organisation of the gonad wall and the gonoducts is unknown. Here we present a detailed light and transmission electron microscopy-based examination of the pedal portion of the adult female reproductive system in Phoxichilidium femoratum Rathke, 1799. We describe its gross anatomy and the ultrastructure of the gonad diverticulum, oviduct and gonopore, as well as development of the oocytes. Each gonad diverticulum is enclosed in the extracellular matrix of the horizontal septum and bears some internal cellular lining. However, neither the gonad lining, nor the septum sheath cells, ever form a continuous epithelial layer. Oocytes, which undergo maturation in the diverticulum, remain, until very late in the process, attached to the gonad wall though specialised stalk cells. Interestingly, stalk cells do not participate in egg envelope or yolk formation: both are synthesized endogenously in the oocytes. The oviduct is supplied with musculature, which assists in egg transport to the gonopore, whereas the gonopore itself is surrounded by specialised glands.
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Affiliation(s)
- Nina Alexeeva
- White Sea Biological Station, Zoological Institute, Russian Academy of Sciences, Saint-Petersburg, Universitetskaya Nab. 1, St. Petersburg, 199034, Russian Federation.
| | - Yuta Tamberg
- National Public Health Service - Southern, 369 Taieri Road, 9010, Dunedin, New Zealand.
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Hu J, Wang H, Jiang R, Yang G, Zhang T, Zhang J, Yao G. Effects of indented zona pellucida on oocyte growth and development explored from changes of gene expression in cumulus cells. Arch Gynecol Obstet 2023; 308:1023-1033. [PMID: 37400728 DOI: 10.1007/s00404-023-07104-7] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Accepted: 06/06/2023] [Indexed: 07/05/2023]
Abstract
PURPOSE Abnormal Zona Pellucida (ZP) of human oocytes is an extracellular oocyte abnormality leading to subfertility or infertility, among which indented ZP (iZP) is a common clinical case, and there is currently no effective clinical solution. The study aimed to find out the influence of this abnormal ZP on the growth and development of GC and further explore its influence on the growth and development of oocytes, hoping to provide new ideas for the etiology and treatment of such patients. METHODS In this study, we collected granulosa cells GC from oocytes with iZP(four cases) and GC from oocytes with a normal appearance of the ZP(eight cases) during ICSI treatment cycles, and submitted them to transcriptomic analysis using next-generation RNA sequencing (RNAseq). RESULTS 177 Differentially Expressed Genes (DEG) were identified by RNAseq analysis of Granulosa Cells (GC) from oocytes with a normal ZP morphological appearance and those with iZP. Correlation analysis of these DEGs showed that the expression levels of the immune factor CD274 and the inflammatory factors IL4R and IL-7R, which are positively associated with ovulation, were significantly down-regulated in the GC of oocytes with iZP. Hippo, PI3K-AKT, Ras and calcium signaling pathways related to oocyte growth and development, NTRK2 and its ligands (BDNF and NT5E) from the neurotrophin family that are trophic to the oocyte were also significantly down-regulated in the GC of oocytes with iZP. In addition, the expression of cadherin family members CDH6, CDH12 and CDH19 were significantly down-regulated in DEGs, and the down-regulation of these proteins may affect the gap junction between Granulosa cells and oocytes. CONCLUSION IZP might cause obstacles to dialogue and material exchange between GC and oocytes and further affect the growth and development of oocytes.
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Affiliation(s)
- Jingyi Hu
- Center for Reproductive Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Huihui Wang
- Center for Reproductive Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Ran Jiang
- Center for Reproductive Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Guang Yang
- Center for Reproductive Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Tongwei Zhang
- Center for Reproductive Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Junya Zhang
- Center for Reproductive Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Guidong Yao
- Center for Reproductive Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.
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Kang I, Koo M, Yoon H, Park BS, Jun JH, Lee J. Ovastacin: An oolemma protein that cleaves the zona pellucida to prevent polyspermy. Clin Exp Reprod Med 2023; 50:154-159. [PMID: 37643828 PMCID: PMC10477413 DOI: 10.5653/cerm.2023.05981] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Revised: 04/26/2023] [Accepted: 05/02/2023] [Indexed: 08/31/2023] Open
Abstract
Monospermy occurs in the process of normal fertilization where a single sperm fuses with the egg, resulting in the formation of a diploid zygote. During the process of fertilization, the sperm must penetrate the zona pellucida (ZP), the outer layer of the egg, to reach the egg's plasma membrane. Once a sperm binds to the ZP, it undergoes an acrosomal reaction, which involves the release of enzymes from the sperm's acrosome that help it to penetrate the ZP. Ovastacin is one of the enzymes that is involved in breaking down the ZP. Studies have shown that ovastacin is necessary for the breakdown of the ZP and for successful fertilization to occur. However, the activity of ovastacin is tightly regulated to ensure that only one sperm can fertilize the egg. One way in which ovastacin helps to prevent polyspermy (the fertilization of an egg by more than one sperm) is by rapidly degrading the ZP after a sperm has penetrated it. This makes it difficult for additional sperm to penetrate the ZP and fertilize the egg. Ovastacin is also thought to play a role in the block to polyspermy, a mechanism that prevents additional sperm from fusing with the egg's plasma membrane after fertilization has occurred. In summary, the role of ovastacin in monospermic fertilization is to help ensure that only one sperm can fertilize the egg, while preventing polyspermy and ensuring successful fertilization.
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Affiliation(s)
- Inyoung Kang
- Department of Biomedical Laboratory Sciences, Eulji University, Seongnam, Republic of Korea
| | - Myoungjoo Koo
- Department of Biomedical Laboratory Sciences, Eulji University, Seongnam, Republic of Korea
| | - Hyejin Yoon
- Department of Senior Healthcare, Graduate School of Eulji University, Seongnam, Republic of Korea
| | - Beom Seok Park
- Department of Biomedical Laboratory Sciences, Eulji University, Seongnam, Republic of Korea
- Department of Senior Healthcare, Graduate School of Eulji University, Seongnam, Republic of Korea
| | - Jin Hyun Jun
- Department of Biomedical Laboratory Sciences, Eulji University, Seongnam, Republic of Korea
- Department of Senior Healthcare, Graduate School of Eulji University, Seongnam, Republic of Korea
- Eulji Medi-Bio Research Institute (EMBRI), Eulji University, Daejeon, Republic of Korea
| | - Jaewang Lee
- Department of Biomedical Laboratory Sciences, Eulji University, Seongnam, Republic of Korea
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Du Y, Gupta P, Qin S, Sieber M. The role of metabolism in cellular quiescence. J Cell Sci 2023; 136:jcs260787. [PMID: 37589342 PMCID: PMC10445740 DOI: 10.1242/jcs.260787] [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] [Indexed: 08/18/2023] Open
Abstract
Cellular quiescence is a dormant, non-dividing cell state characterized by significant shifts in physiology and metabolism. Quiescence plays essential roles in a wide variety of biological processes, ranging from microbial sporulation to human reproduction and wound repair. Moreover, when the regulation of quiescence is disrupted, it can drive cancer growth and compromise tissue regeneration after injury. In this Review, we examine the dynamic changes in metabolism that drive and support dormant and transiently quiescent cells, including spores, oocytes and adult stem cells. We begin by defining quiescent cells and discussing their roles in key biological processes. We then examine metabolic factors that influence cellular quiescence in both healthy and disease contexts, and how these could be leveraged in the treatment of cancer.
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Affiliation(s)
- Yipeng Du
- UT Southwestern Medical Center, 5323 Harry Hines Blvd, MC9040 ND13.214, Dallas, TX 75390, USA
| | - Parul Gupta
- UT Southwestern Medical Center, 5323 Harry Hines Blvd, MC9040 ND13.214, Dallas, TX 75390, USA
| | - Shenlu Qin
- UT Southwestern Medical Center, 5323 Harry Hines Blvd, MC9040 ND13.214, Dallas, TX 75390, USA
| | - Matthew Sieber
- UT Southwestern Medical Center, 5323 Harry Hines Blvd, MC9040 ND13.214, Dallas, TX 75390, USA
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Shan LY, Tian Y, Liu WX, Fan HT, Li FG, Liu WJ, Li A, Shen W, Sun QY, Liu YB, Zhou Y, Zhang T. LSM14B controls oocyte mRNA storage and stability to ensure female fertility. Cell Mol Life Sci 2023; 80:247. [PMID: 37578641 PMCID: PMC10425512 DOI: 10.1007/s00018-023-04898-2] [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: 05/15/2023] [Revised: 07/07/2023] [Accepted: 07/24/2023] [Indexed: 08/15/2023]
Abstract
Controlled mRNA storage and stability is essential for oocyte meiosis and early embryonic development. However, how to regulate mRNA storage and stability in mammalian oogenesis remains elusive. Here we showed that LSM14B, a component of membraneless compartments including P-body-like granules and mitochondria-associated ribonucleoprotein domain (MARDO) in germ cell, is indispensable for female fertility. To reveal loss of LSM14B disrupted primordial follicle assembly and caused mRNA reduction in non-growing oocytes, which was concomitant with the impaired assembly of P-body-like granules. 10× Genomics single-cell RNA-sequencing and immunostaining were performed. Meanwhile, we conducted RNA-seq analysis of GV-stage oocytes and found that Lsm14b deficiency not only impaired the maternal mRNA accumulation but also disrupted the translation in fully grown oocytes, which was closely associated with dissolution of MARDO components. Moreover, Lsm14b-deficient oocytes reassembled a pronucleus containing decondensed chromatin after extrusion of the first polar body, through compromising the activation of maturation promoting factor, while the defects were restored via WEE1/2 inhibitor. Together, our findings reveal that Lsm14b plays a pivotal role in mammalian oogenesis by specifically controlling of oocyte mRNA storage and stability.
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Affiliation(s)
- Li-Ying Shan
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock (R2BGL), College of Life Sciences, Inner Mongolia University, Hohhot, 010070, China
| | - Yu Tian
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock (R2BGL), College of Life Sciences, Inner Mongolia University, Hohhot, 010070, China
| | - Wen-Xiang Liu
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock (R2BGL), College of Life Sciences, Inner Mongolia University, Hohhot, 010070, China
| | - Hai-Tao Fan
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock (R2BGL), College of Life Sciences, Inner Mongolia University, Hohhot, 010070, China
| | - Feng-Guo Li
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock (R2BGL), College of Life Sciences, Inner Mongolia University, Hohhot, 010070, China
| | - Wen-Juan Liu
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock (R2BGL), College of Life Sciences, Inner Mongolia University, Hohhot, 010070, China
| | - Ang Li
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock (R2BGL), College of Life Sciences, Inner Mongolia University, Hohhot, 010070, China
- Fertility Preservation Lab, Guangdong-Hong Kong Metabolism & Reproduction Joint Laboratory, Reproductive Medicine Center, Guangdong Second Provincial General Hospital, Guangzhou, 510317, China
| | - Wei Shen
- College of Life Sciences, Institute of Reproductive Sciences, Qingdao Agricultural University, Qingdao, 266109, China
| | - Qing-Yuan Sun
- Fertility Preservation Lab, Guangdong-Hong Kong Metabolism & Reproduction Joint Laboratory, Reproductive Medicine Center, Guangdong Second Provincial General Hospital, Guangzhou, 510317, China
| | - Yong-Bin Liu
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock (R2BGL), College of Life Sciences, Inner Mongolia University, Hohhot, 010070, China.
| | - Yang Zhou
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock (R2BGL), College of Life Sciences, Inner Mongolia University, Hohhot, 010070, China.
| | - Teng Zhang
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock (R2BGL), College of Life Sciences, Inner Mongolia University, Hohhot, 010070, China.
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Elias KM, Ng NW, Dam KU, Milne A, Disler ER, Gockley A, Holub N, Seshan ML, Church GM, Ginsburg ES, Anchan RM. Fertility restoration in mice with chemotherapy induced ovarian failure using differentiated iPSCs. EBioMedicine 2023; 94:104715. [PMID: 37482511 PMCID: PMC10435842 DOI: 10.1016/j.ebiom.2023.104715] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 06/29/2023] [Accepted: 06/30/2023] [Indexed: 07/25/2023] Open
Abstract
BACKGROUND Treatment options for premature ovarian insufficiency (POI) are limited to hormone replacement and donor oocytes. A novel induced pluripotent stem cell (iPSC) transplant paradigm in a mouse model has potential translational applications for management of POI. METHODS Mouse ovarian granulosa cell derived-iPSCS were labelled with green fluorescent protein (GFP) reporter and differentiated in vitro into oocytes. Differentiated cells were assayed for estradiol and progesterone secretion by enzyme-linked immunosorbent assays. After Fluorescence-Activated Cell Sorting (FACS) for the cell surface marker anti-Mullerian hormone receptor (AMHR2), enriched populations of differentiated cells were surgically transplanted into ovaries of mice that had POI secondary to gonadotoxic pre-treatment with alkylating agents. A total of 100 mice were used in these studies in five separate experiments with 56 animals receiving orthotopic ovarian injections of either FACS sorted or unsorted differentiated iPSCSs and the remaining animals receiving sham injections of PBS diluent. Following transplantation surgery, mice were stimulated with gonadotropins inducing oocyte development and underwent oocyte retrieval. Nine transplanted mice were cross bred with wild-type mice to assess fertility. Lineage tracing of resultant oocytes, F1 (30 pups), and F2 (42 pups) litters was interrogated by GFP expression and validation by short tandem repeat (STR) lineage tracing. FINDINGS [1] iPSCs differentiate into functional oocytes and steroidogenic ovarian cells which [2] express an ovarian (GJA1) and germ cell (ZP1) markers. [3] Endocrine function and fertility were restored in mice pretreated with gonadotoxic alkylating agents via orthotopic transplantation of differentiated iPSCS, thus generating viable, fertile mouse pups. INTERPRETATION iPSC-derived ovarian tissue can reverse endocrine and reproductive sequelae of POI. FUNDING Center for Infertility and Reproductive Surgery Research Award, Siezen Foundation award (RMA). Reproductive Scientist Development Program, Marriott Foundation, Saltonstall Foundation, Brigham Ovarian Cancer Research Fund (K.E).
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Affiliation(s)
- Kevin M Elias
- Division of Gynecologic Oncology, Department of Obstetrics, Gynecology and Reproductive Biology, Brigham and Women's Hospital, Dana-Farber Cancer Institute, Harvard Medical School, 75 Francis St., Boston, MA 02115, USA
| | - Nicholas W Ng
- Division of Reproductive Endocrinology and Infertility, Center for Infertility and Reproductive Surgery, Department of Obstetrics, Gynecology and Reproductive Biology, Brigham and Women's Hospital, Harvard Medical School, 75 Francis St., Boston, MA 02115, USA
| | - Kh U Dam
- Division of Reproductive Endocrinology and Infertility, Center for Infertility and Reproductive Surgery, Department of Obstetrics, Gynecology and Reproductive Biology, Brigham and Women's Hospital, Harvard Medical School, 75 Francis St., Boston, MA 02115, USA
| | - Ankrish Milne
- Division of Reproductive Endocrinology and Infertility, Center for Infertility and Reproductive Surgery, Department of Obstetrics, Gynecology and Reproductive Biology, Brigham and Women's Hospital, Harvard Medical School, 75 Francis St., Boston, MA 02115, USA
| | - Emily R Disler
- Division of Reproductive Endocrinology and Infertility, Center for Infertility and Reproductive Surgery, Department of Obstetrics, Gynecology and Reproductive Biology, Brigham and Women's Hospital, Harvard Medical School, 75 Francis St., Boston, MA 02115, USA
| | - Alison Gockley
- Division of Gynecologic Oncology, Department of Obstetrics, Gynecology and Reproductive Biology, Brigham and Women's Hospital, Dana-Farber Cancer Institute, Harvard Medical School, 75 Francis St., Boston, MA 02115, USA
| | - Nicole Holub
- Division of Gynecologic Oncology, Department of Obstetrics, Gynecology and Reproductive Biology, Brigham and Women's Hospital, Dana-Farber Cancer Institute, Harvard Medical School, 75 Francis St., Boston, MA 02115, USA
| | - Maya L Seshan
- Division of Reproductive Endocrinology and Infertility, Center for Infertility and Reproductive Surgery, Department of Obstetrics, Gynecology and Reproductive Biology, Brigham and Women's Hospital, Harvard Medical School, 75 Francis St., Boston, MA 02115, USA
| | - George M Church
- Department of Genetics, Harvard Medical School, Boston, MA 02115, USA; Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA 02115, USA
| | - Elizabeth S Ginsburg
- Division of Reproductive Endocrinology and Infertility, Center for Infertility and Reproductive Surgery, Department of Obstetrics, Gynecology and Reproductive Biology, Brigham and Women's Hospital, Harvard Medical School, 75 Francis St., Boston, MA 02115, USA
| | - Raymond M Anchan
- Division of Reproductive Endocrinology and Infertility, Center for Infertility and Reproductive Surgery, Department of Obstetrics, Gynecology and Reproductive Biology, Brigham and Women's Hospital, Harvard Medical School, 75 Francis St., Boston, MA 02115, USA.
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Kabir MA, Iqbal MM, Nandi SK, Khanam M, Sumon MAA, Tahiluddin AB, Kari ZA, Wei LS, Téllez-Isaías G. Comparative study of ovarian development in wild and captive-reared long-whiskered Sperata aor (Hamilton, 1822). BMC ZOOL 2023; 8:10. [PMID: 37488631 PMCID: PMC10364359 DOI: 10.1186/s40850-023-00172-x] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Accepted: 07/13/2023] [Indexed: 07/26/2023] Open
Abstract
Long-whiskered catfish Sperata aor is a freshwater catfish known for its supreme flesh quality and fast growth, whose captive-reared broodstock denotes a difficult challenge for aquaculture. The reproductive dysfunctions in long-whiskered catfish raised in tank conditions were observed by comparing tissue biochemical composition and ovarian histology of wild female broodstock. Sixty (60) female broodstocks were used in the current study, consisting of 30 reared at sandy-muddy soil tank bottoms in captive conditions and 30 wild individuals collected from the haor basin during the breeding season. The fish reproductive state was investigated using the biometric and reproductive parameters, biochemical composition and levels of amino acids in the different tissues, and histological analysis of ovarian development. Results revealed that the biometrical parameters of wild and captive female broodstocks exhibited no remarkable difference (p > 0.05). Nevertheless, the wild fish had remarkably higher (p < 0.05) GSI (8.73%), oocyte weight (0.45 mg/egg), and ripeness (27.08%) in comparison with captive-reared broodstock. The total length and body weight, body weight and ovary weight, ovipositor diameter and ovary weight, and GSI and HSI displayed a positive relationship with R2 = 1, R2 = 1, R2 = 0.993, and R2 = 0.973, respectively, for wild broodstock, while R2 = 0.994, R2 = 0.806, R2 = 0.804, and R2 = 0.896, respectively, for captive broodstock. Additionally, the proximate composition in oocytes and liver tissues in both broodstocks did not differ significantly (p > 0.05). However, two essential amino acids (EAA), i.e., lysine and phenylalanine, and two non-essential amino acids, i.e., glutamic acid and glycine, were highly significant differences (p < 0.05) in the oocytes and liver of wild broodstock compared to the captive-reared broodstock. On the other hand, the EAA, e.g., isoleucine, threonine, leucine, and arginine, were highly dominated in both wild and captive female brood oocytes and liver. The ovarian histological slides from each fish group showed three oocytes developmental stages that indicated the asynchronous-reproductive ovarian oocytes of this fish. This study may be useful to fully understand the factors affecting the spawning and reproduction of S. aor broodstock, crucial for management in captive conditions as well as conservation and protection for sustainable aquaculture management of S. aor.
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Affiliation(s)
- Muhammad Anamul Kabir
- Department of Aquaculture, Sylhet Agricultural University, Sylhet, 3100, Bangladesh.
- Advanced Livestock and Aquaculture Research Group, Faculty of Agro-Based Industry, Universiti Malaysia Kelantan, Jeli Campus, Jeli, 17600, Kelantan, Malaysia.
| | - Mohammed Mahbub Iqbal
- Department of Fish Biology and Genetics, Sylhet Agricultural University, Sylhet, 3100, Bangladesh
| | - Shishir Kumar Nandi
- Department of Aquaculture, Sylhet Agricultural University, Sylhet, 3100, Bangladesh
| | - Mahbuba Khanam
- Department of Aquaculture, Sylhet Agricultural University, Sylhet, 3100, Bangladesh
| | - Md Afsar Ahmed Sumon
- Marine Biology Department, Faculty of Marine Sciences, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Albaris B Tahiluddin
- College of Fisheries, Mindanao State University-Tawi-Tawi College of Technology and Oceanography, Sanga-Sanga, Bongao, 7500, Tawi-Tawi, Philippines
| | - Zulhisyam Abdul Kari
- Department of Agricultural Sciences, Faculty of Agro-Based Industry, Universiti Malaysia Kelantan, Jeli Campus, Jeli, 17600, Kelantan, Malaysia.
- Advanced Livestock and Aquaculture Research Group, Faculty of Agro-Based Industry, Universiti Malaysia Kelantan, Jeli Campus, Jeli, 17600, Kelantan, Malaysia.
| | - Lee Seong Wei
- Department of Agricultural Sciences, Faculty of Agro-Based Industry, Universiti Malaysia Kelantan, Jeli Campus, Jeli, 17600, Kelantan, Malaysia
- Advanced Livestock and Aquaculture Research Group, Faculty of Agro-Based Industry, Universiti Malaysia Kelantan, Jeli Campus, Jeli, 17600, Kelantan, Malaysia
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Liu K, Zhang L, Qi Q, Li J, Yan F, Hou J. Growth hormone treatment improves the development of follicles and oocytes in prepubertal lambs. J Ovarian Res 2023; 16:132. [PMID: 37408062 DOI: 10.1186/s13048-023-01209-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Accepted: 06/17/2023] [Indexed: 07/07/2023] Open
Abstract
BACKGROUND When prepubertal lambs are superovulated, the ovarian response to gonadotropin stimulation has great individual difference and the collected oocytes have lower developmental ability than that of adult ewes. Over the years, growth hormone (GH) has been used in assisted reproduction because it can improve the reproductive performance in humans and animals. However, the effect of GH on ovaries and oocytes of prepubertal lambs remains unclear. METHODS Before and during follicle-stimulating hormone (FSH) superovulation of prepubertal lambs (4‒6-week-old), the lambs were treated with high (50 mg) or low dose (25 mg) of ovine GH in a long (5 days) or short (2 days) period. The recovered oocytes were used for in vitro maturation and fertilization, and several parameters of oocyte quality and development capacity were evaluated. The possible underlying mechanisms of GH action were explored by analysis of granulosa cell (GC) transcriptome, ovarian proteome and follicular fluid metabolome. RESULTS Treatment of lambs with 50 mg GH over 5 days (long treatment) potentially promoted the response of lambs to superovulation and improved the development capacity of retrieved oocytes, consequently increasing the high quality embryo yield from lambs. A number of differently expressed genes or proteins were found in ovaries between GH-treated and untreated lambs. Cellular experiments revealed that GH reduced the oxidative stress of GCs and promoted the GC proliferation probably through activation of the PI3K/Akt signaling pathway. Finally, analysis of follicular fluid metabolome indicated that GH treatment altered the abundance of many metabolites in follicular fluid, such as antioxidants and fatty acids. CONCLUSIONS GH treatment has a beneficial role on function of lamb ovaries, which supports the development of follicles and oocytes and improves the efficiency of embryo production from prepubertal lambs.
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Affiliation(s)
- Kexiong Liu
- State Key Laboratory of Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Yuan-Ming-Yuan West Road, Haidian District, Beijing, 100193, China
| | - Luyao Zhang
- State Key Laboratory of Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Yuan-Ming-Yuan West Road, Haidian District, Beijing, 100193, China
| | - Qi Qi
- State Key Laboratory of Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Yuan-Ming-Yuan West Road, Haidian District, Beijing, 100193, China
| | - Junjin Li
- State Key Laboratory of Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Yuan-Ming-Yuan West Road, Haidian District, Beijing, 100193, China
| | - Fengxiang Yan
- State Key Laboratory of Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Yuan-Ming-Yuan West Road, Haidian District, Beijing, 100193, China
| | - Jian Hou
- State Key Laboratory of Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Yuan-Ming-Yuan West Road, Haidian District, Beijing, 100193, China.
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Trimmer KA, Zhao P, Seemann J, Chen SY, Mondal S, Ben-Yakar A, Arur S. Spatial single-cell sequencing of meiosis I arrested oocytes indicates acquisition of maternal transcripts from the soma. Cell Rep 2023; 42:112544. [PMID: 37227820 PMCID: PMC10592488 DOI: 10.1016/j.celrep.2023.112544] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Revised: 03/08/2023] [Accepted: 05/04/2023] [Indexed: 05/27/2023] Open
Abstract
Maternal RNAs are stored from minutes to decades in oocytes throughout meiosis I arrest in a transcriptionally quiescent state. Recent reports, however, propose a role for nascent transcription in arrested oocytes. Whether arrested oocytes launch nascent transcription in response to environmental or hormonal signals while maintaining the meiosis I arrest remains undetermined. We test this by integrating single-cell RNA sequencing, RNA velocity, and RNA fluorescence in situ hybridization on C. elegans meiosis I arrested oocytes. We identify transcripts that increase as the arrested meiosis I oocyte ages, but rule out extracellular signaling through ERK MAPK and nascent transcription as a mechanism for this increase. We report transcript acquisition from neighboring somatic cells as a mechanism of transcript increase during meiosis I arrest. These analyses provide a deeper view at single-cell resolution of the RNA landscape of a meiosis I arrested oocyte and as it prepares for oocyte maturation and fertilization.
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Affiliation(s)
- Kenneth A Trimmer
- Department of Genetics, University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Peisen Zhao
- Department of Electrical and Computer Engineering, University of Texas at Austin, Austin, TX 78712, USA
| | - Jacob Seemann
- Department of Genetics, University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Shin-Yu Chen
- Department of Genetics, University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Sudip Mondal
- Department of Mechanical Engineering, University of Texas at Austin, Austin, TX 78712, USA
| | - Adela Ben-Yakar
- Department of Electrical and Computer Engineering, University of Texas at Austin, Austin, TX 78712, USA; Department of Mechanical Engineering, University of Texas at Austin, Austin, TX 78712, USA
| | - Swathi Arur
- Department of Genetics, University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA.
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Zhang Y, Wang X, Zhao Y, Zhao J, Yu T, Yao Y, Zhao R, Yu R, Liu J, Su J. Reproductive toxicity of microplastics in female mice and their offspring from induction of oxidative stress. Environ Pollut 2023; 327:121482. [PMID: 36967007 DOI: 10.1016/j.envpol.2023.121482] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Revised: 03/13/2023] [Accepted: 03/20/2023] [Indexed: 06/18/2023]
Abstract
Microplastics (MPs) are an emerging pollutant that is becoming recognized as an increasingly serious environmental problem. The biological toxicity and resulting health risks of MPs have attracted much attention in the research community. While the effects of MPs on various mammalian organ systems have been described, their interactions with oocytes and the underlying mechanism of their activity within the reproductive system have remained ambiguous. Here, we discovered that oral administration of MPs to mice (40 mg/kg per day for 30 days) significantly reduced the oocyte maturation and fertilization rate, embryo development, and fertility. Ingestion of MPs significantly increased the ROS level in oocytes and embryos, leading to oxidative stress, mitochondrial dysfunction, and apoptosis. Moreover, mouse exposure to MPs caused DNA damage in oocytes, including spindle/chromosome morphology defects, and downregulation of actin and Juno expression in mouse oocytes. In addition, mice were also exposed to MPs (40 mg/kg per day) during gestation and lactation to determine trans-generational reproductive toxicity. The results showed that maternal exposure to MPs during pregnancy resulted in a decline in birth and postnatal body weight in offspring mice. Furthermore, MPs exposure of mothers markedly reduced oocyte maturation, fertilization rate, and embryonic development in their female offspring. This investigation provides new insights on the mechanism of MPs' reproductive toxicity and raises concerns for potential risks of MP pollution on the reproductive health of humans and animals.
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Affiliation(s)
- Yingbing Zhang
- Key Laboratory of Livestock Biology, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province, 712100, PR China
| | - Xiyue Wang
- Key Laboratory of Livestock Biology, College of Science and Technology, Northwest A&F University, Yangling, Shaanxi Province, 712100, PR China
| | - Yifan Zhao
- Key Laboratory of Livestock Biology, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province, 712100, PR China
| | - Jianglin Zhao
- Key Laboratory of Livestock Biology, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province, 712100, PR China
| | - Tong Yu
- Key Laboratory of Livestock Biology, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province, 712100, PR China
| | - Yupei Yao
- Key Laboratory of Livestock Biology, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province, 712100, PR China
| | - Ruolin Zhao
- Key Laboratory of Livestock Biology, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province, 712100, PR China
| | - Ruiluan Yu
- Key Laboratory of Livestock Biology, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province, 712100, PR China
| | - Jun Liu
- Key Laboratory of Livestock Biology, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province, 712100, PR China
| | - Jianmin Su
- Key Laboratory of Livestock Biology, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province, 712100, PR China.
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Dittrich R, Lotz L. [Fertility and fertility preservation in women]. Dermatologie (Heidelb) 2023:10.1007/s00105-023-05170-1. [PMID: 37289206 DOI: 10.1007/s00105-023-05170-1] [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] [Subscribe] [Scholar Register] [Accepted: 05/04/2023] [Indexed: 06/09/2023]
Abstract
BACKGROUND Advances in the treatment of cancer and in reproductive medicine make it possible for many patients to start their family planning even after cytotoxic therapy. Depending on the age of the patient, the planned oncological therapy and its urgency, various methods can be used to preserve the fertility of affected women. OBJECTIVES Presentation of facts about fertility, as well as information about fertility-preserving methods for women, so that they can be discussed with and offered to patients. MATERIALS AND METHODS Presentation and discussion of basic research, clinical data, and expert recommendations on fertility and fertility preservation. RESULTS Well-established fertility-protective techniques now exist for women that offer a realistic chance of subsequent pregnancy. These include transposition of the gonads prior to radiotherapy, gonadal protection with gonadotropin-releasing hormone (GnRH) analogues and cryopreservation of fertilized and unfertilized oocytes, as well as cryopreservation of ovarian tissue. CONCLUSIONS Fertility-protective techniques are an integral part of oncological treatments for prepubertal girls and patients of reproductive age. The various measures must be discussed individually with the patient as part of a multimodal concept. Prompt and timely collaboration with a specialized center is essential.
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Affiliation(s)
- Ralf Dittrich
- Frauenklinik, Uniklinikum Erlangen, Universitätsstr. 21-23, 91054, Erlangen, Deutschland.
| | - Laura Lotz
- Frauenklinik, Uniklinikum Erlangen, Universitätsstr. 21-23, 91054, Erlangen, Deutschland
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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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Tripathi SK, Nandi S, Gupta PSP, Mondal S. Antioxidants supplementation improves the quality of in vitro produced ovine embryos with amendments in key development gene expressions. Theriogenology 2023; 201:41-52. [PMID: 36827868 DOI: 10.1016/j.theriogenology.2022.11.048] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Revised: 11/30/2022] [Accepted: 11/30/2022] [Indexed: 12/12/2022]
Abstract
The present study assessed the effects of supplementation of different antioxidants on oocyte maturation, embryo production, reactive oxygen species (ROS) production and expression of key developmental genes. In this study, using ovine as an animal model, we tested the hypothesis that antioxidant supplementation enhanced the developmental competence of oocytes. Ovine oocytes aspirated from local abattoir-derived ovaries were subjected to IVM with different concentrations of antioxidants [(Melatonin, Ascorbic acid (Vit C), alpha-tocopherol (Vit E), Sodium selenite (SS)]. Oocytes matured without any antioxidant supplementation were used as controls. The oocytes were assessed for maturation rates and ROS levels. Further, embryo production rates in terms of cleavage, blastocysts and total cell numbers were evaluated after performing in vitro fertilization. Real-Time PCR analysis was used to evaluate the expression of stress related gene (SOD-1), growth related (GDF-9, BMP-15), and apoptosis-related genes (BCL-2 and BAX). We observed that maturation rates were significantly higher in alpha-tocopherol (100 μM; 92.4%) groups followed by melatonin (30 μM; 89.1%) group. However, blastocyst rates in ascorbic acid (100 μM; 19.5%), melatonin (30 μM; 18.4%), alpha-tocopherol (100 μM; 18.2%), and sodium selenite (20 μM; 16.9%) groups were significantly higher (P 0.05) than that observed in the control groups. Total cell numbers in blastocysts in the melatonin, ascorbic acid and alpha-tocopherol groups were significantly higher than those observed in sodium selenite and control groups. ROS production was reduced in groups treated with melatonin (30 μM), vitamin C (100 μM), sodium selenite (20 μM) and α-tocopherol (200 μM) compared with that observed in the control group. Supplementation of antioxidants caused the alterations in mRNA expression of growth, stress, and apoptosis related gene expression in matured oocytes. The results recommend that antioxidants alpha-tocopherol (200 μM), sodium selenite (40 μM), melatonin (30 μM) and ascorbic acid (100 μM) during IVM reduced the oxidative stress by decreasing ROS levels in oocytes, thus improving embryo quantity and quality.
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Affiliation(s)
- S K Tripathi
- ICAR-National Institute of Animal Nutrition and Physiology, Adugodi, Bangalore, India
| | - S Nandi
- ICAR-National Institute of Animal Nutrition and Physiology, Adugodi, Bangalore, India.
| | - P S P Gupta
- ICAR-National Institute of Animal Nutrition and Physiology, Adugodi, Bangalore, India
| | - S Mondal
- ICAR-National Institute of Animal Nutrition and Physiology, Adugodi, Bangalore, India
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Du S, Wang Y, Yang X, Liu X, Deng K, Chen M, Yan X, Lu F, Shi D. Beneficial effects of fibroblast growth factor 10 supplementation during in vitro maturation of buffalo cumulus-oocyte complexes. Theriogenology 2023; 201:126-137. [PMID: 36893617 DOI: 10.1016/j.theriogenology.2023.02.023] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2022] [Revised: 02/20/2023] [Accepted: 02/21/2023] [Indexed: 02/26/2023]
Abstract
Fibroblast growth factor 10 (FGF10) is an important regulator of the mammalian cumulus-oocyte complex that plays a crucial role in oocyte maturation. In this study, we investigated the effects of FGF10 supplementation on the in vitro maturation (IVM) of buffalo oocytes and its related mechanisms. During IVM, the maturation medium was supplemented with a range of concentrations of FGF10 (0, 0.5, 5, and 50 ng/mL) and the resulting effects were corroborated using aceto-orcein staining, TUNEL apoptosis assay, detection of Cdc2/Cdk1 kinase in oocytes, and real-time quantitative PCR. In matured oocytes, the 5 ng/mL-FGF10 treatment resulted in a significantly increased nuclear maturation rate, which increased the activity of maturation-promoting factor (MPF) and enhanced buffalo oocyte maturation. Furthermore, it treatment significantly inhibited the apoptosis of cumulus cells, while simultaneously promoting its proliferation and expansion. This treatment also increased the absorption of glucose in cumulus cells. Thus, our results indicate that adding an appropriate concentration of FGF10 to a maturation medium during IVM can be beneficial to the maturation of buffalo oocytes and improve the potential of embryo development.
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Affiliation(s)
- Shanshan Du
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Animal Reproduction Institute, Guangxi University, Nanning, China; Department of Reproductive Medicine, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Yanxin Wang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Animal Reproduction Institute, Guangxi University, Nanning, China
| | - Xiaofen Yang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Animal Reproduction Institute, Guangxi University, Nanning, China
| | - Xiaohua Liu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Animal Reproduction Institute, Guangxi University, Nanning, China
| | - Kai Deng
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Animal Reproduction Institute, Guangxi University, Nanning, China
| | - Mengjia Chen
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Animal Reproduction Institute, Guangxi University, Nanning, China
| | - Xi Yan
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Animal Reproduction Institute, Guangxi University, Nanning, China
| | - Fenghua Lu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Animal Reproduction Institute, Guangxi University, Nanning, China.
| | - Deshun Shi
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Animal Reproduction Institute, Guangxi University, Nanning, China.
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Ozturk S, Kosebent EG, Talibova G, Bilmez Y, Tire B, Can A. Embryonic poly(A)-binding protein interacts with translation-related proteins and undergoes phosphorylation on the serine, threonine, and tyrosine residues in the mouse oocytes and early embryos. J Assist Reprod Genet 2023; 40:929-941. [PMID: 36823316 PMCID: PMC10224904 DOI: 10.1007/s10815-023-02746-7] [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: 09/19/2022] [Accepted: 02/03/2023] [Indexed: 02/25/2023] Open
Abstract
Expression of the embryonic poly(A)-binding protein (EPAB) in frog, mouse, and human oocytes and early-stage embryos is maintained at high levels until embryonic genome activation (EGA) after which a significant decrease occurs in EPAB levels. Studies on the vertebrate oocytes and early embryos revealed that EPAB plays key roles in the translational regulation, stabilization, and protection of maternal mRNAs during oocyte maturation and early embryogenesis. However, it remains elusive whether EPAB interacts with other cellular proteins and undergoes phosphorylation to perform these roles. For this purpose, we identified a group of Epab-interacting proteins and its phosphorylation status in mouse germinal vesicle (GV)- and metaphase II (MII)-stage oocytes, and in 1-cell, 2-cell, and 4-cell preimplantation embryos. In the oocytes and early preimplantation embryos, Epab-interacting proteins were found to play roles in the translation and transcription processes, intracellular signaling and transport, maintenance of structural integrity, metabolism, posttranslational modifications, and chromatin remodeling. Moreover, we discovered that Epab undergoes phosphorylation on the serine, threonine, and tyrosine residues, which are localized in the RNA recognition motifs 2, 3, and 4 or C-terminal. Conclusively, these findings suggest that Epab not only functions in the translational control of maternal mRNAs through binding to their poly(A) tails but also participates in various cellular events through interacting with certain group proteins. Most likely, Epab undergoes a dynamic phosphorylation during the oocyte maturation and the early embryo development to carry out these functions.
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Affiliation(s)
- Saffet Ozturk
- Department of Histology and Embryology, Akdeniz University School of Medicine, Campus, Antalya, 07070, Turkey.
| | - Esra Gozde Kosebent
- Department of Histology and Embryology, Akdeniz University School of Medicine, Campus, Antalya, 07070, Turkey
| | - Gunel Talibova
- Department of Histology and Embryology, Akdeniz University School of Medicine, Campus, Antalya, 07070, Turkey
| | - Yesim Bilmez
- Department of Histology and Embryology, Akdeniz University School of Medicine, Campus, Antalya, 07070, Turkey
| | - Betul Tire
- Department of Histology and Embryology, Akdeniz University School of Medicine, Campus, Antalya, 07070, Turkey
| | - Alp Can
- Department of Histology and Embryology, Ankara University School of Medicine, Ankara, 06410, Turkey
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Hocaoglu H, Sieber M. Mitochondrial respiratory quiescence: A new model for examining the role of mitochondrial metabolism in development. Semin Cell Dev Biol 2023; 138:94-103. [PMID: 35450766 PMCID: PMC9576824 DOI: 10.1016/j.semcdb.2022.03.040] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [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: 10/07/2021] [Revised: 03/30/2022] [Accepted: 03/30/2022] [Indexed: 12/20/2022]
Abstract
Mitochondria are vital organelles with a central role in all aspects of cellular metabolism. As a means to support the ever-changing demands of the cell, mitochondria produce energy, drive biosynthetic processes, maintain redox homeostasis, and function as a hub for cell signaling. While mitochondria have been widely studied for their role in disease and metabolic dysfunction, this organelle has a continually evolving role in the regulation of development, wound repair, and regeneration. Mitochondrial metabolism dynamically changes as tissues transition through distinct phases of development. These organelles support the energetic and biosynthetic demands of developing cells and function as key structures that coordinate the nutrient status of the organism with developmental progression. This review will examine the mechanisms that link mitochondria to developmental processes. We will also examine the process of mitochondrial respiratory quiescence (MRQ), a novel mechanism for regulating cellular metabolism through the biochemical and physiological remodeling of mitochondria. Lastly, we will examine MRQ as a system to discover the mechanisms that drive mitochondrial remodeling during development.
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Affiliation(s)
- Helin Hocaoglu
- Department of Physiology, UT Southwestern Medical Center, 5323 Harry Hines Blvd, Dallas, TX 75390, USA
| | - Matthew Sieber
- Department of Physiology, UT Southwestern Medical Center, 5323 Harry Hines Blvd, Dallas, TX 75390, USA.
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45
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Qiao FX, Sun MX, Xu ZR, Liu YC, Chen YZ, Wang HL, Qi ZQ, Xu CL, Liu Y. Chloroacetonitrile exposure induces endoplasmic reticulum stress and affects spindle assembly in mouse oocytes. Food Chem Toxicol 2023; 176:113736. [PMID: 36940772 DOI: 10.1016/j.fct.2023.113736] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Revised: 03/15/2023] [Accepted: 03/17/2023] [Indexed: 03/23/2023]
Abstract
Chloroacetonitrile (CAN) is a halogenated acetonitrile often produced while disinfecting drinking water. Previous studies have shown that maternal exposure to CAN interferes with fetal development; however, the adverse effects on maternal oocytes remain unknown. In this study, in vitro exposure of mouse oocytes to CAN reduced maturation significantly. Transcriptomics analysis showed that CAN altered the expression of multiple oocyte genes, especially those associated with the protein folding process. CAN exposure induced reactive oxygen species production, accompanied by endoplasmic reticulum (ER) stress and increased glucose regulated protein 78, C/EBP homologous protein and activating transcription factor 6 expression. Moreover, our results indicated that spindle morphology was impaired after CAN exposure. CAN disrupted polo-like kinase 1, pericentrin and p-Aurora A distribution, which may be an origin inducer that disrupts spindle assemble. Furthermore, exposure to CAN in vivo impaired follicular development. Taken together, our findings indicate that CAN exposure induces ER stress and affects spindle assembly in mouse oocytes.
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Affiliation(s)
- Feng-Xin Qiao
- Medical College, Guangxi University, Nanning, Guangxi, 530004, China
| | - Ming-Xin Sun
- Medical College, Guangxi University, Nanning, Guangxi, 530004, China
| | - Zhi-Ran Xu
- Translational Medicine Research Center, Ruikang Hospital Affiliated to Guangxi University of Chinese Medicine, Nanning, Guangxi, 530011, China
| | - Yue-Cen Liu
- Medical College, Guangxi University, Nanning, Guangxi, 530004, China
| | - Yan-Zhu Chen
- Medical College, Guangxi University, Nanning, Guangxi, 530004, China
| | - Hai-Long Wang
- Department of Basic Medicine, School of Medicine, Xiamen University, Xiamen, Fujian, 361102, China
| | - Zhong-Quan Qi
- Medical College, Guangxi University, Nanning, Guangxi, 530004, China
| | - Chang-Long Xu
- Reproductive Medical Center of Nanning Second People's Hospital, Nanning, Guangxi, 530031, China.
| | - Yu Liu
- Medical College, Guangxi University, Nanning, Guangxi, 530004, China.
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Neves AR, Montoya-Botero P, Sachs-Guedj N, Polyzos NP. Association between the number of oocytes and cumulative live birth rate: A systematic review. Best Pract Res Clin Obstet Gynaecol 2023; 87:102307. [PMID: 36707342 DOI: 10.1016/j.bpobgyn.2022.102307] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Revised: 11/24/2022] [Accepted: 12/19/2022] [Indexed: 12/28/2022]
Abstract
The available literature is controversial regarding the association between the number of oocytes retrieved and the cumulative live birth rate (CLBR). Although some authors report a continuous increase in the CLBR with the number of oocytes retrieved, others have found a plateau. A systematic review was conducted, including all eligible studies published until June 2022, to determine the optimal number of oocytes retrieved to maximize the CLBR. We found a positive association between the number of oocytes and the CLBR. However, this association varies according to patients' age. While in patients younger than 35 years, little benefit is derived from increasing the number of oocytes above 25-30, in patients older than 35 years, the number of oocytes seems to improve the CLBR until the extreme of reproductive age is reached. In women aged 44 years or older, the CLBR will be consistently low, independent of the number of oocytes retrieved.
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Affiliation(s)
- Ana Raquel Neves
- Department of Obstetrics, Gynecology and Reproductive Medicine, Dexeus University Hospital, 08028 Barcelona, Spain; IVI-RMA Lisboa, Portugal; Autonomous University of Barcelona, 08193, Cerdanyola del Vallès, Barcelona, Spain.
| | | | - Noemie Sachs-Guedj
- Department of Obstetrics, Gynecology and Reproductive Medicine, Dexeus University Hospital, 08028 Barcelona, Spain
| | - Nikolaos P Polyzos
- Department of Obstetrics, Gynecology and Reproductive Medicine, Dexeus University Hospital, 08028 Barcelona, Spain; Faculty of Medicine and Health Sciences, Ghent University (UZ Gent), 9000 Gent, Belgium
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Youngster M, Kedem A, Avraham S, Yerushalmi G, Baum M, Maman E, Hourvitz A, Gat I. Treatment safety of ART cycles with extremely high oestradiol concentrations using GnRH agonist trigger. Reprod Biomed Online 2023; 46:519-526. [PMID: 36566147 DOI: 10.1016/j.rbmo.2022.11.019] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Revised: 10/26/2022] [Accepted: 11/28/2022] [Indexed: 12/03/2022]
Abstract
RESEARCH QUESTION Are IVF treatments with extremely high peak oestradiol levels and gonadotrophin releasing hormone (GnRH) agonist trigger associated with higher complication rates? DESIGN A retrospective cohort study including patients from two large medical centres treated between 2019 and 2021. A study group with extremely high peak oestradiol levels (≥20,000 pmol/l on the day of ovarian stimulation, or ≥15,000 pmol/l on the previous day) and a control group with normal range oestradiol levels (3000-12000 pmol/l) that received GnRH agonist triggering. Patients were surveyed about complaints and medical care related to ovum retrieval and medical files were reviewed. Major complication rates and the need for medical assistance were compared. RESULTS Several differences between the study and control group were observed because of the study design: mean age was 33.01 ± 5.14 versus 34.57 ± 4.52 (P < 0.001), mean peak oestradiol levels was 26645.34 ± 8592.57 pmol/l versus 7229.75 ± 2329.20 pmol/l (P < 0.001), and mean number of oocytes were 27.55 ± 13.46 versus 11.67 ± 5.76 (P < 0.001) for the study and control group, respectively. Major complications and hospitalization rates were similar between the study and control groups (three [1.25%] versus one [0.48%]; P = 0.62 and three [1.25%] versus two [0.96%]; P = 1.0, respectively). Thirty-six patients (15.1%) in the study group and 11 (5.3%) in the control group sought medical care after retrieval, mostly due to abdominal pain, without the need for further workup or hospitalization (P < 0.001). CONCLUSIONS Extremely high oestradiol levels were not associated with thromboembolic events, higher major complication or hospitalization rates, and therefore may be considered safe. Nevertheless, patients may be informed of possible higher rates of discomfort, mostly abdominal pain. Larger studies are warranted to confirm our results.
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Affiliation(s)
- Michal Youngster
- IVF Unit, Department of Obstetrics and Gynecology, Shamir Medical Center, Zerifin, Israel; Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel; IVF Unit, Herzliya Medical Centre, Herzliya, Israel.
| | - Alon Kedem
- IVF Unit, Department of Obstetrics and Gynecology, Shamir Medical Center, Zerifin, Israel; Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel; IVF Unit, Herzliya Medical Centre, Herzliya, Israel
| | - Sarit Avraham
- IVF Unit, Department of Obstetrics and Gynecology, Shamir Medical Center, Zerifin, Israel; Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel; IVF Unit, Herzliya Medical Centre, Herzliya, Israel
| | - Gil Yerushalmi
- IVF Unit, Department of Obstetrics and Gynecology, Shamir Medical Center, Zerifin, Israel; Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Micha Baum
- Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel; IVF Unit, Herzliya Medical Centre, Herzliya, Israel; IVF Unit, Department of Obstetrics and Gynecology, Sheba Medical Centre, Ramat-Gan, Israel
| | - Ettie Maman
- Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel; IVF Unit, Herzliya Medical Centre, Herzliya, Israel; IVF Unit, Department of Obstetrics and Gynecology, Sheba Medical Centre, Ramat-Gan, Israel
| | - Ariel Hourvitz
- IVF Unit, Department of Obstetrics and Gynecology, Shamir Medical Center, Zerifin, Israel; Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel; IVF Unit, Herzliya Medical Centre, Herzliya, Israel
| | - Itai Gat
- IVF Unit, Department of Obstetrics and Gynecology, Shamir Medical Center, Zerifin, Israel; Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
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Liu Y, Gao J. Reproductive aging: biological pathways and potential interventive strategies. J Genet Genomics 2023; 50:141-150. [PMID: 35840100 DOI: 10.1016/j.jgg.2022.07.002] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2022] [Revised: 07/01/2022] [Accepted: 07/05/2022] [Indexed: 11/30/2022]
Abstract
Reproductive aging is a natural process conserved across species and is well-known in females. It shows age-related follicle depletion and reduction of oocyte quality, eventually causing reproductive senescence and menopause. Although reproductive aging in males is not well noticed as in females, it also causes infertility and has deleterious consequences on the offspring. Various factors have been suggested to contribute to reproductive aging, including oxidative stress, mitochondrial defects, telomere shortening, meiotic chromosome segregation errors and genetic alterations. With the increasing trend of pregnancy age, it is particularly crucial to find interventions to preserve or extend human fertility. Studies in humans and model organisms have provided insights into the biological pathways associated with reproductive aging, and a series of potential interventive strategies have been tested. Here, we review factors affecting reproductive aging in females and males and summarize interventive strategies that may help delay or rescue the aging phenotypes of reproduction.
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Affiliation(s)
- Yuanyuan Liu
- Center for Cell Structure and Function, College of Life Sciences, Key Laboratory of Animal Resistance Biology of Shandong Province, Shandong Normal University, Jinan, Shandong 250014, China
| | - Jinmin Gao
- Center for Cell Structure and Function, College of Life Sciences, Key Laboratory of Animal Resistance Biology of Shandong Province, Shandong Normal University, Jinan, Shandong 250014, China.
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Yousef MS, Rezk WR, El-Naby ASAHH, Mahmoud KGM, Takagi M, Miyamoto A, Megahed GA. In vitro effect of zearalenone on sperm parameters, oocyte maturation and embryonic development in buffalo. Reprod Biol 2023; 23:100732. [PMID: 36669377 DOI: 10.1016/j.repbio.2023.100732] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2022] [Revised: 11/23/2022] [Accepted: 01/13/2023] [Indexed: 01/20/2023]
Abstract
The negative impact of zearalenone (ZEN; potent estrogenic mycotoxin) exposure on buffalo embryo production has not yet been determined. In the current study, buffalo sperm and oocytes were exposed to ZEN at different concentrations during maturation. Sperms (with and without ZEN exposure) were incubated for 2 h and evaluated for motility, viability, acrosome integrity, normality, and ultrastructure. Matured oocytes exposed to ZEN were stained to determine their nuclear maturation. Further, their developmental ability was evaluated after in vitro fertilization. Our results showed the toxic effects of ZEN at high concentrations (2000 ng/mL) on different buffalo sperm parameters. The number of acrosome-intact sperm was reduced at 0 h after exposure to a concentration of ≥ 100 ng/mL. Furthermore, the maturation rate of buffalo oocytes (telophase I + metaphase II) was significantly decreased in ZEN-treated oocytes with a higher degeneration rate. Oocytes matured in 1000 ng/mL ZEN and subsequently exhibited considerable reduction in cleavage rate and blastocyst formation compared with control oocytes (2.6% vs. 13.1%). Moreover, the morula rate was decreased (p < 0.001) in ZEN-treated oocytes at concentrations of ≥ 10 ng/mL. Overall, the adverse effects of in vitro ZEN exposure on buffalo sperm parameters and oocyte meiotic progression with a notable reduction in cleavage, morula, and blastocyst rates were defined by these results. Altogether, buffaloes should be considered sensitive to ZEN exposure with respect to their reproductive function.
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Affiliation(s)
- Mohamed S Yousef
- Department of Theriogenology, Faculty of Veterinary Medicine, Assiut University, Assiut, Egypt; Global Agromedicine Research Center (GAMRC), Obihiro University of Agriculture and Veterinary Medicine, Obihiro 080 8555, Japan.
| | - Walaa R Rezk
- Department of Theriogenology, Faculty of Veterinary Medicine, Assiut University, Assiut, Egypt
| | | | - Karima Gh M Mahmoud
- Department of Animal Reproduction and A.I, Veterinary Research Division, National Research Centre, Dokki, 12622 Giza, Egypt
| | - Mitsuhiro Takagi
- Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi 1677-1, Japan
| | - Akio Miyamoto
- Global Agromedicine Research Center (GAMRC), Obihiro University of Agriculture and Veterinary Medicine, Obihiro 080 8555, Japan.
| | - Gaber A Megahed
- Department of Theriogenology, Faculty of Veterinary Medicine, Assiut University, Assiut, Egypt
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50
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Kwan HCK. Reconsideration of the safety and effectiveness of human oocyte cryopreservation. Reprod Biol Endocrinol 2023; 21:22. [PMID: 36849982 PMCID: PMC9969709 DOI: 10.1186/s12958-023-01071-z] [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] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Accepted: 02/08/2023] [Indexed: 03/01/2023] Open
Abstract
Mature oocyte cryopreservation (OC) has become increasingly common since the American Society for Reproductive Medicine declared OC to no longer be experimental. Utilization of the open vitrification protocol has led to a marked improvement in the efficacy of oocyte cryopreservation. However, the safety and effectiveness of this cryopreservation method remain controversial. A previous report stated that among all initiated recipient cycles, the live-birth rate among recipients of all ages was significantly higher when using fresh donor oocytes (FDOs) rather than cryopreserved donor oocytes (CDOs). Confounding patient characteristics were noted as possible causes. OC stands as an acceptable elective medical intervention for preserving fertility in women. To further understand the effects of OC on the live birth rate resulting from fresh versus cryopreserved donor oocytes, reported data from the Society for Assisted Reproductive Technology from 2013 to 2020 were analyzed. The mean of the mean live-birth rate in all ages resulting from FDOs was 49.0% (44.6-53.3%) versus 41.0% (39.1-43.2%) for CDOs (difference, 8.0% [95% confidence interval, 5.35-10.57%], p value < 0.001). The lower live-birth rate observed for CDOs versus FDOs has been consistent throughout past decades. While there has been no reported increase in the aneuploidy rate for CDOs compared to FDOs, differences in the nondisjunction separation rate among different chromosomes were described in a recent report. Open vitrification culture medium usually contains high concentrations of cryoprotectants, such as 15% dimethyl sulfoxide (DMSO) and 15% ethylene glycol (EG). Recent studies showed that tissue culture with 0.1% DMSO or 10% EG resulted in deregulation of gene expression, disruption of epigenetic imprints, and accumulation of reactive oxygen species. The addition of melatonin, which can remove reactive oxygen species from vitrification medium, was shown to improve CDOs qualities and functions to conditions similar to those of FDOs; however, there were insufficient data to conclude that melatonin could improve the lower live-birth rate. These factors that affect live birth rates, birth defects, birth weights and developmental health cannot be ignored and perhaps need to be studied again and followed when evaluating the true effectiveness of human oocyte cryopreservation.
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Affiliation(s)
- Helen C K Kwan
- Department of Research and Development, KSRS, San Francisco, CA, USA.
- Department of Sciences, Mathematics and Biotechnology, University of California, Berkeley Extension, Berkeley, CA, USA.
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