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Kumar S, Singh MK, Chauhan MS. Expression of the developmental important candidate genes in oocytes, embryos, embryonic stem cells, cumulus cells, and fibroblast cells of buffalo (Bubalus bubalis). Gene Expr Patterns 2021; 41:119200. [PMID: 34329769 DOI: 10.1016/j.gep.2021.119200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Accepted: 07/26/2021] [Indexed: 10/20/2022]
Abstract
The present study was undertaken to study the expression of the developmental important gene transcripts in immature oocytes, mature oocytes, different stages of IVF produced embryos, embryonic stem (ES), cumulus (BCC), fetal fibroblast (BFF), newborn fibroblast (NBF) and adult fibroblast (BAF) cells of buffalo by semi-quantitative RT-PCR. The expression of GLUT1, HSP70.1, POL A Polymerase, GDF9, BMP15, and SURVIVIN transcripts was found in immature oocytes, mature oocytes, 2-cell, 4-cell, 8-16 cell, morula, and the blastocyst. Interestingly, the CX43 expression was found in oocytes, embryos, and other cell types, but it was not detected in the blastocyst. However, the IFNT expression was found in the blastocyst only, but not in other cells. The buffalo ES cells showed the expression of intracellular and cell surface markers (NANOG, OCT4, SOX2, FOXD3, SSEA-3, SSEA-4, TRA-1-60, and TRA-1-81) and alkaline phosphatase activity. Two ES cell lines (S-line and M-line-II) were continued to survive up to 98th passages (~630 days) and 97th passages (~624 days), respectively. It was interesting to note that GLUT1, CX43, HSP70.1, POL A Polymerase, GDF9, BMP15, and SURVIVIN transcripts (except the IFNT) were expressed in buffalo ES, BCC, BFF, NBF and BAF cells. This is the first preliminary report that the buffalo ES, BCC, BFF, NBF, and BAF cells expressed the several developmental important candidate genes. It is concluded that the expression of the major developmental important genes was not only expressed in the oocytes and embryos but also expressed in the ES, BCC, BFF, NBF, and BAF cells of buffalo.
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Affiliation(s)
- S Kumar
- Animal Biotechnology Centre, ICAR-National Dairy Research Institute, Karnal, 132001, Haryana, India.
| | - M K Singh
- Animal Biotechnology Centre, ICAR-National Dairy Research Institute, Karnal, 132001, Haryana, India.
| | - M S Chauhan
- Animal Biotechnology Centre, ICAR-National Dairy Research Institute, Karnal, 132001, Haryana, India.
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Parthenogenetic activation of buffalo ( Bubalus bubalis) oocytes: comparison of different activation reagents and different media on their developmental competence and quantitative expression of developmentally regulated genes. ZYGOTE 2020; 29:49-58. [PMID: 33004105 DOI: 10.1017/s0967199420000519] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
This study was carried out to compare the efficacy of different methods to activate buffalo A + B and C + D quality oocytes parthenogenetically and to study the in vitro developmental competence of oocytes and expression of some important genes at the different developmental stages of parthenotes. The percentage of A + B oocytes (62.16 ± 5.06%, range 53.8-71.3%) was significantly higher (P < 0.001) compared with that of C + D oocytes (37.8 ± 5.00%, range 28.6-46.1%) retrieved from slaughterhouse buffalo ovaries. Among all combinations, ethanol activation followed by culture in research vitro cleave medium gave the highest cleavage and blastocyst yields for both A + B and C + D grade oocytes. Total cell numbers, inner cell mass/trophectoderm ratio and apoptotic index of A + B group blastocysts were significantly different (P < 0.05) from their C + D counterpart. To determine the status of expression patterns of developmentally regulated genes, the expression of cumulus-oocyte complexes, fertilization, developmental competence and apoptotic-related genes were also studied in parthenogenetically produced buffalo embryos at different stages, and indicated that the differential expression patterns of the above genes had a role in early embryonic development.
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Deutschmeyer VE, Richter AM. The ZAR1 protein in cancer; from epigenetic silencing to functional characterisation and epigenetic therapy of tumour suppressors. Biochim Biophys Acta Rev Cancer 2020; 1874:188417. [PMID: 32828887 DOI: 10.1016/j.bbcan.2020.188417] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2020] [Revised: 08/06/2020] [Accepted: 08/07/2020] [Indexed: 12/14/2022]
Abstract
ZAR1, zygote arrest 1, is a zinc finger protein (C-terminus), which was initially identified in mouse oocytes. Later it was found that its expression is present in various human tissues e.g. lung and kidney. Interestingly, it was observed that in various tumour types the ZAR1 transcript is missing due to hypermethylation of its CpG island promoter, but not ZAR2. Since methylation of the ZAR1 promoter is described as a frequent event in tumourigenesis, ZAR1 could serve as a useful diagnostic marker in cancer screens. ZAR1 was described as a useful prognostic/diagnostic cancer marker for lung cancer, kidney cancer, melanoma and possibly liver carcinoma. Furthermore, ZAR1 was reactivated as a tumour suppressor by epigenetic therapy using CRISPR-dCas9 method. This method holds the potential to precisely target not only ZAR1 and reactivate tumour suppressors in a tailored cancer therapy. ZAR1 is highly conserved amongst vertebrates, especially its zinc finger, which is the relevant domain for its protein and RNA binding ability. ZAR1 is implicated in various cellular mechanisms including regulation of oocyte/embryo development, cell cycle control and mRNA binding, though little was known about the underlying mechanisms. ZAR1 was reported to regulate and activate translation through the binding to TCS translation control sequences in the 3'UTRs of its target mRNA the kinase WEE1. ZAR1 has a tumour suppressing function by inhibiting cell cycle progression. Here we review the current literature on ZAR1 focusing on structural, functional and epigenetic aspects. Characterising the cellular mechanisms that regulate the signalling pathways ZAR1 is involved in, could lead to a deeper understanding of tumour development and, furthermore, to new strategies in cancer treatment.
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Affiliation(s)
| | - Antje M Richter
- Institute for Genetics, University of Giessen, 35392 Giessen, Germany; Max-Planck Institute for Heart and Lung Research, 61231, Bad Nauheim, Germany.
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Pan Z, Wang X, Di R, Liu Q, Hu W, Cao X, Guo X, He X, Lv S, Li F, Wang H, Chu M. A 5-Methylcytosine Site of Growth Differentiation Factor 9 (GDF9) Gene Affects Its Tissue-Specific Expression in Sheep. Animals (Basel) 2018; 8:ani8110200. [PMID: 30405007 PMCID: PMC6262488 DOI: 10.3390/ani8110200] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Revised: 10/21/2018] [Accepted: 10/24/2018] [Indexed: 01/02/2023] Open
Abstract
Simple Summary Growth differentiation factor 9 (GDF9) is an important gene for ovine fertility. GDF9 is highly expressed in the ovary as opposed to other tissues, but the reason for this is unknown. Our study found this can be caused by the methylation level of the promoter CpG island mC-4 site. This finding contributes to the understanding of the regulatory mechanism of GDF9 gene in reproduction. Abstract Growth differentiation factor 9 (GDF9) plays an important role in the early folliculogenesis of sheep. This study investigated the mRNA expression of ovine GDF9 in different tissues by real-time PCR. GDF9 exhibits significantly higher levels of expression (p < 0.01) in the ovary, relative to other tissues, indicating that its expression is tissue specific. To explore the regulatory mechanism of this tissue-specific expression, the methylation level of one CpG island (−1453 to −1854) of GDF9 promoter in ovary and heart was determined. In this region (−1987 to −1750), only the mC-4 site was present in the Sp4 binding site showed differential methylation between the heart and ovary; with increased (p < 0.01) methylation being observed in the heart. Additionally, the methylation level was negatively correlated with GDF9 mRNA expression (R = −0.75, p = 0.012), indicating that the methylation of this site plays an important role in transcriptional regulation of GDF9. The methylation effect of the mC-4 site was confirmed by using dual-luciferase. Site-directed mutation (methylation) of mC-4 site significantly reduced (p < 0.05) basal transcriptional activity of GDF9 promoter in oocytes. These results imply that methylation of GDF9 promoter CpG island mC-4 site may affect the binding of the Sp4 transcription factor to the GDF9 promoter region in sheep, thereby regulating GDF9 expression and resulting in a tissue-specific expression.
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Affiliation(s)
- Zhangyuan Pan
- Key Laboratory of Animal Genetics and Breeding and Reproduction of Ministry of Agriculture, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China.
- College of Agriculture and Forestry Science, Linyi University, Linyi 276000, China.
| | - Xiangyu Wang
- Key Laboratory of Animal Genetics and Breeding and Reproduction of Ministry of Agriculture, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China.
| | - Ran Di
- Key Laboratory of Animal Genetics and Breeding and Reproduction of Ministry of Agriculture, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China.
| | - Qiuyue Liu
- Key Laboratory of Animal Genetics and Breeding and Reproduction of Ministry of Agriculture, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China.
| | - Wenping Hu
- Key Laboratory of Animal Genetics and Breeding and Reproduction of Ministry of Agriculture, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China.
| | - Xiaohan Cao
- Key Laboratory of Animal Genetics and Breeding and Reproduction of Ministry of Agriculture, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China.
| | - Xiaofei Guo
- Key Laboratory of Animal Genetics and Breeding and Reproduction of Ministry of Agriculture, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China.
| | - Xiaoyun He
- Key Laboratory of Animal Genetics and Breeding and Reproduction of Ministry of Agriculture, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China.
| | - Shengjin Lv
- College of Agriculture and Forestry Science, Linyi University, Linyi 276000, China.
| | - Fukuan Li
- College of Agriculture and Forestry Science, Linyi University, Linyi 276000, China.
| | - Hui Wang
- College of Agriculture and Forestry Science, Linyi University, Linyi 276000, China.
| | - Mingxing Chu
- Key Laboratory of Animal Genetics and Breeding and Reproduction of Ministry of Agriculture, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China.
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Rajabi Z, Yazdekhasti H, Noori Mugahi SMH, Abbasi M, Kazemnejad S, Shirazi A, Majidi M, Zarnani AH. Mouse preantral follicle growth in 3D co-culture system using human menstrual blood mesenchymal stem cell. Reprod Biol 2018; 18:122-131. [PMID: 29454805 DOI: 10.1016/j.repbio.2018.02.001] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2017] [Revised: 02/01/2018] [Accepted: 02/03/2018] [Indexed: 12/18/2022]
Abstract
Follicle culture provides a condition which can help investigators to evaluate various aspects of ovarian follicle growth and development and impact of different components and supplementations as well as presumably application of follicle culture approach in fertility preservation procedures. Mesenchymal Stem Cells (MSCs), particularly those isolated from menstrual blood has the potential to be used as a tool for improvement of fertility. In the current study, a 3D co-culture system with mice preantral follicles and human Menstrual Blood Mesenchymal Stem Cells (MenSCs) using either collagen or alginate beads was designed to investigate whether this system allows better preantral follicles growth and development. Results showed that MenSCs increase the indices of follicular growth including survival rate, diameter, and antrum formation as well as the rate of in vitro maturation (IVM) in both collagen and alginates beads. Although statistically not significant, alginate was found to be superior in terms of supporting survival rate and antrum formation. Hormone assay demonstrated that the amount of secreted 17 β-estradiol and progesterone in both 3D systems increased dramatically after 12 days, with the highest levels in system employing MenSCs. Data also demonstrated that relative expression of studied genes increased for Bmp15 and Gdf9 and decreased for Mater when follicles were cultured in the presence of MenSCs. Collectively, results of the present study showed that MenSCs could improve indices of follicular growth and maturation in vitro. Further studies are needed before a clinical application of MenSCs-induced IVM is considered.
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Affiliation(s)
- Zahra Rajabi
- Department of Anatomy, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran; Department of Biomedical Engineering, University of Virginia, Charlottesville, VA 22908, USA
| | - Hossein Yazdekhasti
- Department of Anatomy, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran; Department of Cell Biology, Center for Research in Contraceptive and Reproductive Health, University of Virginia, Charlottesville, VA 22908, USA
| | | | - Mehdi Abbasi
- Department of Anatomy, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran.
| | - Somaieh Kazemnejad
- Reproductive Biotechnology Research Center, Avicenna Research Institute, ACECR, Tehran, Iran
| | - Abolfazl Shirazi
- Reproductive Biotechnology Research Center, Avicenna Research Institute, ACECR, Tehran, Iran
| | - Masoumeh Majidi
- Department of Anatomy, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Amir-Hassan Zarnani
- Reproductive Immunology Research Center, Avicenna Research Institute, ACECR, Tehran, Iran; Immunology Research Center, Iran University of Medical Sciences, Tehran, Iran.
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Leptin supplementation in vitro improved developmental competence of buffalo oocytes and embryos. Theriogenology 2017; 98:116-122. [DOI: 10.1016/j.theriogenology.2017.05.008] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2017] [Revised: 05/06/2017] [Accepted: 05/06/2017] [Indexed: 11/19/2022]
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Cook JM, Charlesworth A. Insertion of inter-domain linkers improves expression and bioactivity of Zygote arrest (Zar) fusion proteins. Protein Eng Des Sel 2017; 30:313-319. [PMID: 28130327 DOI: 10.1093/protein/gzx002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2016] [Accepted: 01/10/2017] [Indexed: 11/12/2022] Open
Abstract
Developmentally important proteins that are crucial for fertilization and embryogenesis are synthesized through highly regulated translation of maternal mRNA. The Zygote arrest proteins, Zar1 and Zar2, are crucial for embryogenesis and have been implicated in binding mRNA and repressing mRNA translation. To investigate Zar1 and Zar2, the full-length proteins had been fused to glutathione-S-transferase (GST) or MS2 protein tags with minimal inter-domain linkers derived from multiple cloning sites; however, these fusion proteins expressed poorly and/or lacked robust function. Here, we tested the effect of inserting additional linkers between the fusion domains. Three linkers were tested, each 17 amino acids long with different physical and chemical properties: flexible hydrophilic, rigid extended or rigid helical. In the presence of any of the three linkers, GST-Zar1 and GST-Zar2 had fewer breakdown products. Moreover, in the presence of any of the linkers, MS2-Zar1 was expressed to higher levels, and in dual luciferase tethered assays, both MS2-Zar1 and MS2-Zar2 repressed luciferase translation to a greater extent. These data suggest that for Zar fusion proteins, increasing the length of linkers, regardless of their physical or chemical properties, improves stability, expression and bioactivity.
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Affiliation(s)
- Jonathan M Cook
- Department of Integrative Biology, University of Colorado Denver, Denver, CO 80204, USA
| | - Amanda Charlesworth
- Department of Integrative Biology, University of Colorado Denver, Denver, CO 80204, USA
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Choudhary KK, Kavya KM, Jerome A, Sharma RK. Advances in reproductive biotechnologies. Vet World 2016; 9:388-95. [PMID: 27182135 PMCID: PMC4864481 DOI: 10.14202/vetworld.2016.388-395] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2015] [Accepted: 03/11/2016] [Indexed: 12/11/2022] Open
Abstract
In recent times, reproductive biotechnologies have emerged and started to replace the conventional techniques. It is noteworthy that for sustained livestock productivity, it is imperative to start using these techniques for facing the increasing challenges for productivity, reproduction and health with impending environment conditions. These recent biotechniques, both in male and female, have revolutionized and opened avenues for studying and manipulating the reproductive process both in vitro and in vivo in various livestock species for improving tis efficiency. This review attempts to highlight pros and cons, on the recent developments in reproductive biotechnologies, both in male and female in livestock species.
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Affiliation(s)
- K. K. Choudhary
- ICAR-National Dairy Research Institute, Karnal - 132 001, Haryana, India
| | - K. M. Kavya
- ICAR-Indian Veterinary Research Institute, Bareilly - 243 122, Uttar Pradesh, India
| | - A. Jerome
- ICAR-Central Institute for Research on Buffaloes, Hisar - 125 001, Haryana, India
| | - R. K. Sharma
- ICAR-Central Institute for Research on Buffaloes, Hisar - 125 001, Haryana, India
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Fatehi R, Ebrahimi B. Maternal-Effect Gene Expression in Cultured Preantral Follicles Derived from Vitrified-Warmed Mouse Ovary. CELL JOURNAL 2015. [PMID: 26199912 PMCID: PMC4503847 DOI: 10.22074/cellj.2016.3742] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Objective This study was conducted to assess survival of follicles, their oocyte maturation and fertilization potential as well as expression of early embryo developmental genes
in in vitro cultured pre-antral follicles derived from vitrified-warmed mouse ovary.
Materials and Methods In this experimental study, ovaries of 12-day old Naval Medical Research Institute (NMRI) female mice were placed into non-vitrified and vitrifiedwarmed groups. Isolated preantral follicles from experimental groups were cultured in
vitro for 12 days. On the 12th day of culture, oocyte maturation was induced and then
matured oocytes were in vitro fertilized. The rates of oocyte maturation and two-cell
stage embryo formation were assessed. Relative expression of Mater and Zar1 was
evaluated on days 1, 6, 10 and 12 of culture. Data analysis was performed by t test
and two-way ANOVA (P<0.05).
Results Our data showed no significant difference between the control and vitrification
groups in the rate of follicular survival, oocyte maturation and two-cell stage embryo formation. The level of gene expression was higher on the 6thand 10thdays of culture for
Mater and Zar1 in vitrified-warmed group compared with non-vitrified group, however,
there was no significant difference between the two groups.
Conclusion It seems that the applied vitrification method did not reveal any negative
effect on maturation and developmental competence of oocytes surrounded in preantral
follicles and therefore could preserve follicular reserves efficiently.
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Affiliation(s)
- Roya Fatehi
- Department of Embryology at Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
| | - Bita Ebrahimi
- Department of Embryology at Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
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