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Shadmanesh A, Nazari H. Alterations in the expression pattern of some epigenetic-related genes and microRNAs subsequent to oocyte cryopreservation. ZYGOTE 2023; 31:411-419. [PMID: 37337712 DOI: 10.1017/s0967199423000321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/21/2023]
Abstract
MicroRNAs (miRNAs) are small non-encoding RNAs that actively regulate biological and physiological processes, and play an important role in regulating gene expression in all cells, especially in most animal cells, including oocytes and embryos. The expression of miRNAs at the right time and place is crucial for the oocyte's maturation and the embryo's subsequent development. Although assisted reproductive techniques (ART) have helped to solve many infertility problems, they cause changes in the expression of miRNA and genes in oocytes and preimplantation embryos, and the effect of these changes on the future of offspring is unknown, and has caused concerns. The relevant genomic alterations commonly imposed on embryos during cryopreservation may have potential epigenetic risks. Understanding the biological functions of miRNAs in frozen maturated oocytes may provide a better understanding of embryonic development and a comparison of fertility conservation in female mammals. With the development of new techniques for genomic evaluation of preimplantation embryos, it has been possible to better understand the effects of ART. The results of various articles have shown that freezing of oocytes and the cryopreservation method are effective for the expression of miRNAs and, in some cases, cause changes in the expression of miRNAs and epigenetic changes in the resulting embryo. This literature review study aimed to investigate the effects of oocyte cryopreservation in both pre-maturation and post-maturation stages, the cryopreservation method and the type of cryoprotectants (CPA) used on the expression of some epigenetic-related genes and miRNAs.
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Affiliation(s)
- Ali Shadmanesh
- Reproductive Biotechnology in Veterinary, Islamic Azad University, Eqlid Branch, Iran
| | - Hassan Nazari
- Research Institute of Animal Embryo Technology, Shahrekord University, Shahrekord, Iran
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Is the pre-antral ovarian follicle the 'holy grail'for female fertility preservation? Anim Reprod Sci 2019; 207:119-130. [PMID: 31208845 DOI: 10.1016/j.anireprosci.2019.05.017] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2019] [Revised: 05/28/2019] [Accepted: 05/31/2019] [Indexed: 01/18/2023]
Abstract
Fertility preservation is not only a concern for humans with compromised fertility after cancer treatment. The preservation of genetic material from endangered animal species or animals with important genetic traits will also greatly benefit from the development of alternative fertility preservation strategies. In humans, embryo cryopreservation and mature-oocyte cryopreservation are currently the only approved methods for fertility preservation. Ovarian tissue cryopreservation is specifically indicated for prepubertal girls and women whose cancer treatment cannot be postponed. The cryopreservation of pre-antral follicles (PAFs) is a safer alternative for cancer patients who are at risk of the reintroduction of malignant cells. As PAFs account for the vast majority of follicles in the ovarian cortex, they represent an untapped potential, which could be cultivated for reproduction, preservation, or research purposes. Vitrification is being used more and more as it seems to yield better results compared to slow freezing, although protocols still need to be optimized for each specific cell type and species. Several methods can be used to assess follicle quality, ranging from simple viability stains to more complex xenografting procedures. In vitro development of PAFs to the pre-ovulatory stage has not yet been achieved in humans and larger animals. However, in vitro culture systems for PAFs are under development and are expected to become available in the near future. This review will focus on recent developments in (human) fertility preservation strategies, which are often accomplished by the use of in vitro animal models due to ethical considerations and the scarcity of human research material.
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Donfack NJ, Alves KA, Alves BG, Rocha RMP, Bruno JB, Bertolini M, Dos Santos RR, Domingues SFS, De Figueiredo JR, Smitz J, Rodrigues APR. Stroma cell-derived factor 1 and connexins (37 and 43) are preserved after vitrification and in vitro culture of goat ovarian cortex. Theriogenology 2018; 116:83-88. [PMID: 29783047 DOI: 10.1016/j.theriogenology.2018.05.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2017] [Revised: 05/02/2018] [Accepted: 05/03/2018] [Indexed: 12/13/2022]
Abstract
This study aimed to evaluate the follicular morphology and development (follicular activation, cell proliferation, and hormone production), as well as the distribution pattern of Connexins 37 and 43 and SDF-1α after vitrification and in vitro culture of goat ovarian tissue. The study involved four experimental groups: fresh control, vitrified control, fresh culture and vitrified culture. The ovarian fragments were vitrified by a solid surface technique using the Ovarian Tissue Cryosystem and subsequently in vitro cultured for 7 days. The percentage of normal preantral follicles was similar between vitrified control and vitrified culture. However, both vitrified control and vitrified culture treatments showed a significant reduction of morphologically normal follicles in comparison to fresh control. A higher percentage of developing follicles (transition, primary and secondary) was observed in both fresh culture and vitrified culture treatments. Progesterone and estradiol production decreased (P < 0.05) during in vitro culture. SDF-1α and Cx37 proteins were detected in oocytes and granulosa cells from all the treatments. However, in vitrified cultured tissue, only granulosa cells were labeled with Cx37. Connexin 43 was detected in the granulosa, theca cells and zona pellucida in all the treatments. In conclusion, in vitro culture of vitrified goat ovarian cortex was able to promote follicle survival and did not alter the expression of SDF-1α and 43. However, the expression of Cx 37 was modified after in vitro culture of vitrified tissue.
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Affiliation(s)
- Nathalie Jiatsa Donfack
- Faculty of Veterinary Medicine, Laboratory of Manipulation of Oocytes and Preantral Follicles (LAMOFOPA), State University of Ceará, Fortaleza, CE, Brazil
| | - Kele Amaral Alves
- Faculty of Veterinary Medicine, Laboratory of Manipulation of Oocytes and Preantral Follicles (LAMOFOPA), State University of Ceará, Fortaleza, CE, Brazil
| | - Benner Geraldo Alves
- Faculty of Veterinary Medicine, Laboratory of Manipulation of Oocytes and Preantral Follicles (LAMOFOPA), State University of Ceará, Fortaleza, CE, Brazil
| | - Rebeca Magalhães Pedrosa Rocha
- Faculty of Veterinary Medicine, Laboratory of Manipulation of Oocytes and Preantral Follicles (LAMOFOPA), State University of Ceará, Fortaleza, CE, Brazil
| | - Jamily Bezzera Bruno
- Faculty of Veterinary Medicine, Laboratory of Manipulation of Oocytes and Preantral Follicles (LAMOFOPA), State University of Ceará, Fortaleza, CE, Brazil
| | - Marcelo Bertolini
- Laboratory of Molecular Biology and Development, University of Fortaleza (UNIFOR), CE, Brazil; Federal University of Rio Grande do Sul, Veterinay Faculty, Porto Alegre, RS, Brazil
| | | | | | - José Ricardo De Figueiredo
- Faculty of Veterinary Medicine, Laboratory of Manipulation of Oocytes and Preantral Follicles (LAMOFOPA), State University of Ceará, Fortaleza, CE, Brazil
| | - Johan Smitz
- Follicle Biology Laboratory, Center for Reproductive Medicine, UZ Brussel, Laarbeeklaan 101, B-1090, Brussels, Belgium
| | - Ana Paula Ribeiro Rodrigues
- Faculty of Veterinary Medicine, Laboratory of Manipulation of Oocytes and Preantral Follicles (LAMOFOPA), State University of Ceará, Fortaleza, CE, Brazil.
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The effect of ovine oocyte vitrification on expression of subset of genes involved in epigenetic modifications during oocyte maturation and early embryo development. Theriogenology 2016; 86:2136-2146. [DOI: 10.1016/j.theriogenology.2016.07.005] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2016] [Revised: 07/05/2016] [Accepted: 07/05/2016] [Indexed: 11/20/2022]
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Sampaio da Silva AM, Bruno JB, de Lima LF, Ribeiro de Sá NA, Lunardi FO, Ferreira ACA, Vieira Correia HH, de Aguiar FLN, Araújo VR, Lobo CH, de Alencar Araripe Moura A, Campello CC, Smitz J, de Figueiredo JR, Ribeiro Rodrigues AP. Connexin 37 and 43 gene and protein expression and developmental competence of isolated ovine secondary follicles cultured in vitro after vitrification of ovarian tissue. Theriogenology 2016; 85:1457-67. [PMID: 26876055 DOI: 10.1016/j.theriogenology.2016.01.001] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2015] [Revised: 12/01/2015] [Accepted: 01/04/2016] [Indexed: 12/25/2022]
Abstract
Cryoinjuries caused by vitrification of tissues and organs lead to the loss of membrane proteins that mediate intercellular communications, such as connexins 37 (Cx37) and 43 (Cx43). Thus, the present study aimed to evaluate ovine Cx37 and Cx43 gene and protein expressions and developmental competence by in vitro-cultured secondary follicles retrieved from vitrified ovarian tissue. Ovarian fragments for the same ovary pair were distributed into six treatments: (1) fresh ovarian tissue (FOT); (2) vitrified ovarian tissue (VOT); (3) isolated follicles from fresh ovarian tissue (FIF); (4) isolated follicles from vitrified ovarian tissue; (5) isolated follicles from fresh ovarian tissue followed by in vitro culture (CFIF); (6) isolated follicles from vitrified ovarian tissue followed by in vitro culture (CVIF). In all treatments, Cx37 and Cx43 gene and protein expression patterns were evaluated by reverse transcription polymerase chain reaction and immunocytochemistry. In addition, secondary follicles were analyzed according to follicular integrity and growth, apoptosis, and cell proliferation. In vitro-cultured secondary follicles (CFIF and CVIF) were evaluated based on morphology (extruded follicles), antrum formation, and viability. The percentage of intact follicles was higher, whereas antrum formation, oocyte extrusion rate, and follicle viability were lower in CVIF than in CFIF treatment (P < 0.05). Terminal deoxynucleotidyl transferase-mediated biotinylated deoxyuridine triphosphates nick end-labeling assay demonstrated that apoptosis was absent in FIF, whereas follicles from all other treatments showed positive labeling. Cell proliferation index was higher in isolated follicles from vitrified ovarian tissue and CVIF treatments than in follicles from FIF. Expression of Cx43 messenger RNA was lower in CVIF treatment when compared with follicles from all other treatments (P < 0.05). Follicle Cx37 messenger RNA levels did not show alterations in any treatment (P > 0.05). Cx37 and Cx43 immunolabeling was localized mainly on granulosa cells and oocytes, respectively. In conclusion, isolation of ovine secondary follicles could be done successfully after vitrification of ovarian tissue, and the basement membrane integrity remained intact after in vitro culture. Although the gene and protein expression of Cx37 did not change after vitrification of ovarian tissue, Cx43 turned out to be altered in secondary follicles after vitrification and in vitro culture.
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Affiliation(s)
| | - Jamily Bezerra Bruno
- Faculty of Veterinary Medicine, LAMOFOPA, PPGCV, State University of Ceara, Fortaleza, Ceará, Brazil
| | - Laritza Ferreira de Lima
- Faculty of Veterinary Medicine, LAMOFOPA, PPGCV, State University of Ceara, Fortaleza, Ceará, Brazil
| | | | | | | | | | | | - Valdevane Rocha Araújo
- Faculty of Veterinary Medicine, LAMOFOPA, PPGCV, State University of Ceara, Fortaleza, Ceará, Brazil
| | - Carlos Henrique Lobo
- Group of Research in Biology of Reproduction, Department of Animal Science, Federal University of Ceará UFC, Fortaleza, Ceará, Brazil
| | - Arlindo de Alencar Araripe Moura
- Group of Research in Biology of Reproduction, Department of Animal Science, Federal University of Ceará UFC, Fortaleza, Ceará, Brazil
| | - Cláudio Cabral Campello
- Faculty of Veterinary Medicine, LAMOFOPA, PPGCV, State University of Ceara, Fortaleza, Ceará, Brazil
| | - Johan Smitz
- Follicle Biology Laboratory, Center for Reproductive Medicine, UZ Brussel, Brussels, Belgium
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Importância das comunicações intercelulares para o desenvolvimento de folículos ovarianos. ACTA ACUST UNITED AC 2016. [DOI: 10.1016/j.recli.2015.12.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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7
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Guruvaiah P, Govatati S, Reddy TV, Beeram H, Deenadayal M, Shivaji S, Bhanoori M. Analysis of Connexin37 gene C1019T polymorphism and PCOS susceptibility in South Indian population: case-control study. Eur J Obstet Gynecol Reprod Biol 2016; 196:17-20. [PMID: 26656196 DOI: 10.1016/j.ejogrb.2015.11.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2015] [Revised: 11/05/2015] [Accepted: 11/12/2015] [Indexed: 12/27/2022]
Abstract
OBJECTIVE Polycystic ovarian syndrome (PCOS) is a complex and multifactorial disorder believed to be the consequence of a complex interaction between genetic, immunological, and environmental factors. The main aim of this study was to investigate the association of Connexin37 (Cx37)/Gap junction alpha 4 (GJA4) gene C1019T single nucleotide polymorphism (SNP) with the susceptibility to polycystic ovarian syndrome (PCOS) in South Indian women. STUDY DESIGN This study comprises 98 PCOS patients and 100 healthy women without PCOS of South Indian origin. We genotyped total of seventeen selected Cx37 SNPs including C1019T (rs1764391) by polymerase chain reaction and sequencing analysis. The genotype frequency and allele distributions of cases and controls were analyzed using Fisher's exact test. RESULTS The genotype and allele frequencies of the C1019T polymorphism significantly differ between cases and controls. The frequencies of C/C genotype (P=0.009) and 'C' allele (P=0.002) of the C1019T polymorphism showed a significant prevalence in cases compared to controls. CONCLUSION Our findings suggest that the Cx37 C1019T variation may contribute to the risk of PCOS in the South Indian women.
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Affiliation(s)
| | - Suresh Govatati
- Department of Biochemistry, Osmania University, Hyderabad, India
| | | | - Himabindu Beeram
- Department of Biochemistry, Osmania University, Hyderabad, India
| | - Mamata Deenadayal
- Infertility Institute and Research Centre (IIRC), Secunderabad, India
| | - Sisinthy Shivaji
- Centre for Cellular and Molecular Biology (CCMB), Hyderabad, India
| | - Manjula Bhanoori
- Department of Biochemistry, Osmania University, Hyderabad, India.
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Shaeib F, Khan SN, Ali I, Thakur M, Saed MG, Dai J, Awonuga AO, Banerjee J, Abu-Soud HM. The Defensive Role of Cumulus Cells Against Reactive Oxygen Species Insult in Metaphase II Mouse Oocytes. Reprod Sci 2015; 23:498-507. [PMID: 26468254 DOI: 10.1177/1933719115607993] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
We investigated the ability of reactive oxygen species (ROS), such as hydrogen peroxide (H(2)O(2)), hydroxyl radical ((·)OH), and hypochlorous acid (HOCl), to overcome the defensive capacity of cumulus cells and elucidate the mechanism through which ROS differentially deteriorate oocyte quality. Metaphase II mouse oocytes with (n = 1634) and without cumulus cells (n = 1633) were treated with increasing concentration of ROS, and the deterioration in oocyte quality was assessed by the changes in the microtubule morphology and chromosomal alignment. Oocyte and cumulus cell viability and cumulus cell number were assessed by indirect immunofluorescence, staining of gap junction protein, and trypan blue staining. The treated oocytes showed decreased quality as a function of increasing concentrations of ROS when compared to controls. Cumulus cells show protection against H(2)O(2) and (·)OH insult at lower concentrations, but this protection was lost at higher concentrations (>50 μmol/L). At higher H(2)O(2) concentrations, treatment dramatically influenced the cumulus cell number and viability with resulting reduction in the antioxidant capacity making the oocyte more susceptible to oxidative damage. However, cumulus cells offered no significant protection against HOCl at any concentration used. In all circumstances in which cumulus cells did not offer protection to the oocyte, both cumulus cell number and viability were decreased. Therefore, the deterioration in oocyte quality may be caused by one or more of the following: a decrease in the antioxidant machinery by the loss of cumulus cells, the lack of scavengers for specific ROS, and/or the ability of the ROS to overcome these defenses.
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Affiliation(s)
- Faten Shaeib
- Departments of Obstetrics and Gynecology, the C.S. Mott Center for Human Growth and Development, Wayne State University School of Medicine, Detroit, MI, USA
| | - Sana N Khan
- Departments of Obstetrics and Gynecology, the C.S. Mott Center for Human Growth and Development, Wayne State University School of Medicine, Detroit, MI, USA
| | - Iyad Ali
- Departments of Obstetrics and Gynecology, the C.S. Mott Center for Human Growth and Development, Wayne State University School of Medicine, Detroit, MI, USA Department of Biochemistry and Genetics, Faculty of Medicine, An-Najah National University, Nablus, Palestine
| | - Mili Thakur
- Departments of Obstetrics and Gynecology, the C.S. Mott Center for Human Growth and Development, Wayne State University School of Medicine, Detroit, MI, USA
| | - Mohammed G Saed
- Departments of Obstetrics and Gynecology, the C.S. Mott Center for Human Growth and Development, Wayne State University School of Medicine, Detroit, MI, USA
| | - Jing Dai
- Departments of Obstetrics and Gynecology, the C.S. Mott Center for Human Growth and Development, Wayne State University School of Medicine, Detroit, MI, USA
| | - Awoniyi O Awonuga
- Departments of Obstetrics and Gynecology, the C.S. Mott Center for Human Growth and Development, Wayne State University School of Medicine, Detroit, MI, USA
| | - Jashoman Banerjee
- Departments of Obstetrics and Gynecology, the C.S. Mott Center for Human Growth and Development, Wayne State University School of Medicine, Detroit, MI, USA
| | - Husam M Abu-Soud
- Departments of Obstetrics and Gynecology, the C.S. Mott Center for Human Growth and Development, Wayne State University School of Medicine, Detroit, MI, USA Department of Biochemistry and Molecular Biology, Wayne State University School of Medicine, Detroit, MI, USA
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Yang Y, Chen J, Wu H, Pei X, Chang Q, Ma W, Ma H, Hei C, Zheng X, Cai Y, Zhao C, Yu J, Wang Y. The Increased Expression of Connexin and VEGF in Mouse Ovarian Tissue Vitrification by Follicle Stimulating Hormone. BIOMED RESEARCH INTERNATIONAL 2015; 2015:397264. [PMID: 26539488 PMCID: PMC4620037 DOI: 10.1155/2015/397264] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/17/2015] [Revised: 08/23/2015] [Accepted: 08/30/2015] [Indexed: 01/16/2023]
Abstract
Ovarian follicular damages were caused by cryoinjury during the process of ovarian vitrification and ischemia/reperfusion during the process of ovarian transplantation. And appropriate FSH plays an important role in antiapoptosis during ovarian follicle development. Therefore, in this study, 0.3 IU/mL FSH was administered into medium during mouse ovarian cryopreservation by vitrification to ascertain the function of FSH on ovarian vitrification and avascular transplantation. The results suggested that the expressions of Cx37, Cx43, apoptotic molecular caspase-3, and angiogenesis molecular VEGF were confirmed using immunohistochemistry, western blotting, and real-time PCR, and the results suggested that the treatment with FSH remarkably increased the number of morphologically normal follicles in vitrified/warmed ovaries by upregulating the expression of Cx37, Cx43, VEGF, and VEGF receptor 2, but downregulating the expression of caspase-3. In addition, the vitrified/warmed ovaries were transplanted, and the related fertility was analyzed, and the results suggested that the fertility, neoangiogenesis, and follicle reserve were remarkably increased in the FSH administrated group. Taken together, administration of 0.3 IU/mL FSH during ovarian cryopreservation by vitrification can maintain ovarian survival during ovarian vitrification and increases the blood supply with avascular transplantation via upregulation of Cx43, Cx37, and VEGF/VEGFR2, as well as through its antiapoptotic effects.
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Affiliation(s)
- Yanzhou Yang
- Key Laboratory of Fertility Preservation and Maintenance of Ministry of Education, Key Laboratory of Reproduction and Genetics in Ningxia, Department of Histology and Embryology, Ningxia Medical University, Yinchuan 750004, China
| | - Jie Chen
- Department of Human Anatomy, Inner Mongolia Medical University, Hohhot 010010, China
| | - Hao Wu
- Key Laboratory of Fertility Preservation and Maintenance of Ministry of Education, Key Laboratory of Reproduction and Genetics in Ningxia, Department of Histology and Embryology, Ningxia Medical University, Yinchuan 750004, China
| | - Xiuying Pei
- Key Laboratory of Fertility Preservation and Maintenance of Ministry of Education, Key Laboratory of Reproduction and Genetics in Ningxia, Department of Histology and Embryology, Ningxia Medical University, Yinchuan 750004, China
| | - Qing Chang
- Key Laboratory of Fertility Preservation and Maintenance of Ministry of Education, Key Laboratory of Reproduction and Genetics in Ningxia, Department of Histology and Embryology, Ningxia Medical University, Yinchuan 750004, China
| | - Wenzhi Ma
- Key Laboratory of Fertility Preservation and Maintenance of Ministry of Education, Key Laboratory of Reproduction and Genetics in Ningxia, Department of Histology and Embryology, Ningxia Medical University, Yinchuan 750004, China
| | - Huiming Ma
- Key Laboratory of Fertility Preservation and Maintenance of Ministry of Education, Key Laboratory of Reproduction and Genetics in Ningxia, Department of Histology and Embryology, Ningxia Medical University, Yinchuan 750004, China
| | - Changchun Hei
- Key Laboratory of Fertility Preservation and Maintenance of Ministry of Education, Key Laboratory of Reproduction and Genetics in Ningxia, Department of Histology and Embryology, Ningxia Medical University, Yinchuan 750004, China
| | - Xiaomin Zheng
- Key Laboratory of Fertility Preservation and Maintenance of Ministry of Education, Key Laboratory of Reproduction and Genetics in Ningxia, Department of Histology and Embryology, Ningxia Medical University, Yinchuan 750004, China
| | - Yufang Cai
- Key Laboratory of Fertility Preservation and Maintenance of Ministry of Education, Key Laboratory of Reproduction and Genetics in Ningxia, Department of Histology and Embryology, Ningxia Medical University, Yinchuan 750004, China
| | - Chengjun Zhao
- Key Laboratory of Fertility Preservation and Maintenance of Ministry of Education, Key Laboratory of Reproduction and Genetics in Ningxia, Department of Histology and Embryology, Ningxia Medical University, Yinchuan 750004, China
| | - Jia Yu
- Key Laboratory of Fertility Preservation and Maintenance of Ministry of Education, Key Laboratory of Reproduction and Genetics in Ningxia, Department of Histology and Embryology, Ningxia Medical University, Yinchuan 750004, China
| | - Yanrong Wang
- Key Laboratory of Fertility Preservation and Maintenance of Ministry of Education, Key Laboratory of Reproduction and Genetics in Ningxia, Department of Histology and Embryology, Ningxia Medical University, Yinchuan 750004, China
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Reference gene selection for real-time quantitative PCR analysis on ovarian cryopreservation by vitrification in mice. J Assist Reprod Genet 2015; 32:1277-84. [PMID: 26115720 DOI: 10.1007/s10815-015-0503-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2015] [Accepted: 05/26/2015] [Indexed: 10/23/2022] Open
Abstract
PURPOSE To ensure the correct interpretation of the results of quantitative real-time reverse transcription-polymerase chain reaction (qRT-PCR) from ovarian tissue cryopreserved by vitrification, it is critical to normalize expression levels to a reference gene with stable messenger RNA (mRNA) expression in the vitrified/warmed ovarian tissue. The aim of this work was to identify suitable reference genes for qRT-PCR analysis during ovarian cryopreservation by vitrification. METHODS GeNorm, NormFinder, comparative Delta-CT, and BestKeeper were used to analyze the expression and stability of the 14 reference genes GAPDH, ABL1, ACTB, CDKN1A, GPER, GUSB, HPRT1, HSP90AB1, IPO8, PPIA, RPL4, RPL30, TBP, and UPAR. RESULTS Our results indicated that ACTB and RPL4 were relatively stable reference genes in vitrified/warmed ovaries.
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Tanpradit N, Comizzoli P, Srisuwatanasagul S, Chatdarong K. Positive impact of sucrose supplementation during slow freezing of cat ovarian tissues on cellular viability, follicle morphology, and DNA integrity. Theriogenology 2015; 83:1553-61. [DOI: 10.1016/j.theriogenology.2015.01.035] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2014] [Revised: 01/29/2015] [Accepted: 01/31/2015] [Indexed: 11/30/2022]
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12
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Damous LL, Nakamuta JS, de Carvalho AETS, Soares JM, de Jesus Simões M, Krieger JE, Baracat EC. Adipose tissue-derived stem cell therapy in rat cryopreserved ovarian grafts. Stem Cell Res Ther 2015; 6:57. [PMID: 25889829 PMCID: PMC4416311 DOI: 10.1186/s13287-015-0068-3] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2014] [Revised: 01/27/2015] [Accepted: 03/25/2015] [Indexed: 01/14/2023] Open
Abstract
The preliminary results of ovarian transplantation in clinical practice are encouraging. However, the follicular depletion caused by ischemic injury is a main concern and is directly related to short-term graft survival. Cell therapy with adipose tissue-derived stem cells (ASCs) could be an alternative to induce early angiogenesis in the graft. This study aimed to evaluate ASCs therapy in rat cryopreserved ovarian grafts. A single dose of rat ASC (rASCs) or vehicle was injected into the bilateral cryopreserved ovaries of twelve adult female rats immediately after an autologous transplant. Daily vaginal smears were performed for estrous cycle evaluation until euthanasia on postoperative day 30. Follicle viability, graft morphology and apoptosis were assessed. No differences were found with respect to estrous cycle resumption and follicle viability (P > 0.05). However, compared with the vehicle-treated grafts, the morphology of the ASCs-treated grafts was impaired, with diffuse atrophy and increased apoptosis (P < 0.05). ASCs direct injected in the stroma of rat cryopreserved ovarian grafts impaired its morphology although may not interfere with the functional resumption on short-term. Further investigations are necessary to evaluated whether it could compromise their viability in the long-term.
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Affiliation(s)
- Luciana Lamarão Damous
- Gynecology Discipline, Laboratory of Structural and Molecular Gynecology (LIM-58), Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, Dr Arnaldo av 455, 2nd floor, room 2113, Pacaembu, São Paulo, 01246-903, Brazil. .,, Galvão Bueno St, 499, Bloco A. Apto31, Liberdade, São Paulo, 01506-000, Brazil.
| | - Juliana Sanajotti Nakamuta
- Laboratory of Genetics and Molecular Cardiology, Heart Institute (Incor), Faculdade de Medicina da Universidade de São Paulo, Dr Enéas de Carvalho Aguiar Av 44, 10th floor, Cerqueira Cesar, São Paulo, 05403-000, Brazil.
| | - Ana Elisa Teófilo Saturi de Carvalho
- Laboratory of Genetics and Molecular Cardiology, Heart Institute (Incor), Faculdade de Medicina da Universidade de São Paulo, Dr Enéas de Carvalho Aguiar Av 44, 10th floor, Cerqueira Cesar, São Paulo, 05403-000, Brazil.
| | - José Maria Soares
- Gynecology Discipline, Laboratory of Structural and Molecular Gynecology (LIM-58), Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, Dr Arnaldo av 455, 2nd floor, room 2113, Pacaembu, São Paulo, 01246-903, Brazil.
| | - Manuel de Jesus Simões
- Department of Morphology and Genetics, Universidade Federal de São Paulo (UNIFESP), Botucatu St 740. Ed. Lemos Torres, 2nd floor, Vila Clementino, São Paulo, 04023-009, Brazil.
| | - José Eduardo Krieger
- Laboratory of Genetics and Molecular Cardiology, Heart Institute (Incor), Faculdade de Medicina da Universidade de São Paulo, Dr Enéas de Carvalho Aguiar Av 44, 10th floor, Cerqueira Cesar, São Paulo, 05403-000, Brazil.
| | - Edmund C Baracat
- Gynecology Discipline, Laboratory of Structural and Molecular Gynecology (LIM-58), Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, Dr Arnaldo av 455, 2nd floor, room 2113, Pacaembu, São Paulo, 01246-903, Brazil.
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Cryopreservation of mammalian oocytes and embryos: current problems and future perspectives. SCIENCE CHINA-LIFE SCIENCES 2014; 57:903-14. [DOI: 10.1007/s11427-014-4689-z] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2013] [Accepted: 02/03/2014] [Indexed: 01/19/2023]
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Ganesan S, Keating AF. Impact of 7,12-dimethylbenz[a]anthracene exposure on connexin gap junction proteins in cultured rat ovaries. Toxicol Appl Pharmacol 2014; 274:209-14. [PMID: 24269759 PMCID: PMC3932824 DOI: 10.1016/j.taap.2013.11.008] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2013] [Revised: 11/11/2013] [Accepted: 11/12/2013] [Indexed: 10/26/2022]
Abstract
7,12-Dimethylbenz[a]anthracene (DMBA) destroys ovarian follicles in a concentration-dependent manner. The impact of DMBA on connexin (CX) proteins that mediate communication between follicular cell types along with pro-apoptotic factors p53 and Bax were investigated. Postnatal day (PND) 4 Fisher 344 rat ovaries were cultured for 4days in vehicle medium (1% DMSO) followed by a single exposure to vehicle control (1% DMSO) or DMBA (12.5nM or 75nM) and cultured for 4 or 8days. RT-PCR was performed to quantify Cx37, Cx43, p53 and Bax mRNA level. Western blotting and immunofluorescence staining were performed to determine CX37 or CX43 level and/or localization. Cx37 mRNA and protein increased (P<0.05) at 4days of 12.5 nM DMBA exposure. Relative to vehicle control-treated ovaries, mRNA encoding Cx43 decreased (P<0.05) but CX43 protein increased (P<0.05) at 4days by both DMBA exposures. mRNA expression of pro-apoptotic p53 was decreased (P<0.05) but no changes in Bax expression were observed after 4days of DMBA exposures. In contrast, after 8days, DMBA decreased Cx37 and Cx43 mRNA and protein but increased both p53 and Bax mRNA levels. CX43 protein was located between granulosa cells, while CX37 was located at the oocyte cell surface of all follicle stages. These findings support that DMBA exposure impacts ovarian Cx37 and Cx43 mRNA and protein prior to both observed changes in pro-apoptotic p53 and Bax and follicle loss. It is possible that such interference in follicular cell communication is detrimental to follicle viability, and may play a role in DMBA-induced follicular atresia.
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Affiliation(s)
- Shanthi Ganesan
- Department of Animal Science, Iowa State University, Ames, IA 50011, USA.
| | - Aileen F Keating
- Department of Animal Science, Iowa State University, Ames, IA 50011, USA.
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Monzo C, Haouzi D, Roman K, Assou S, Dechaud H, Hamamah S. Slow freezing and vitrification differentially modify the gene expression profile of human metaphase II oocytes. Hum Reprod 2012; 27:2160-8. [DOI: 10.1093/humrep/des153] [Citation(s) in RCA: 79] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Demeestere I, Simon P, Emiliani S, Delbaere A, Englert Y. Orthotopic and heterotopic ovarian tissue transplantation. Hum Reprod Update 2009; 15:649-65. [PMID: 19474206 PMCID: PMC2759329 DOI: 10.1093/humupd/dmp021] [Citation(s) in RCA: 174] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
BACKGROUND Transplantation of ovarian tissue is, at present, the only clinical option available to restore fertility using cryopreserved ovarian tissue. More than 30 transplantations of cryopreserved tissue have been reported, and six babies have been born, worldwide, following this procedure. Despite these encouraging results, it is essential to optimize the procedure by improving the follicular survival, confirming safety and developing alternatives. Here, we review the different factors affecting follicular survival and growth after grafting. METHODS Relevant studies were identified by searching Pubmed up to January 2009 with English language limitation. The following key words were used: (ovarian tissue or whole ovary) AND (transplantation) AND (cryopreservation or pregnancy). Using the literature and personal experience, we examined relevant data on the different exogenous and clinical factors affecting follicular development after grafting. RESULTS Clinical factors such as the patient's age and the transplantation sites influenced the lifespan of the graft. A heterotopic transplantation site is not optimal but offers some advantages and it may also promote the hormonal environment after a combined heterotopic and orthotopic transplantation. Exogenous factors such as antioxidants, growth factors or hormones were tested to improve follicular survival; however, their efficiency regarding further follicular development and fertility potential remains to be established. CONCLUSION Additional evidence is required to define optimal conditions for ovarian tissue transplantation. Alternatives such as whole ovary or isolated follicles transplantations require further investigation but are likely to be successful in humans in the future.
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Affiliation(s)
- I Demeestere
- Research Laboratory on Human Reproduction, Medicine Faculty, Université Libre de Bruxelles (ULB), Erasme Hospital, 808 Route de Lennik, 1070 Brussels, Belgium.
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