1
|
Yuan LM, Chen YL, Shi XH, Wu XX, Liu XJ, Liu SP, Chen N, Sai WJF. PLCζ can stably regulate Ca2+ fluctuations in early embryo. Theriogenology 2022; 191:16-21. [DOI: 10.1016/j.theriogenology.2022.06.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Revised: 06/05/2022] [Accepted: 06/17/2022] [Indexed: 12/01/2022]
|
2
|
Chen J, Cui Z, Qiu Y, Zhang X, Chen F, Wang H, Xiong B, Miao Y, Gao Q. Exposure to Copper Compromises the Maturational Competency of Porcine Oocytes by Impairing Mitochondrial Function. Front Cell Dev Biol 2021; 9:678665. [PMID: 34150773 PMCID: PMC8212058 DOI: 10.3389/fcell.2021.678665] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Accepted: 04/23/2021] [Indexed: 11/20/2022] Open
Abstract
Copper (Cu) is an essential trace element for animals, and also an important nutritional component for the normal physiology and metabolism of animal reproductive systems. An excess or lack of Cu will directly or indirectly affect animal reproductive activities. However, the effect of Cu, in particular excessive Cu, on the reproductive performance of sows has not been studied. Here, we report that excessive Cu had negative effects on oocyte maturation and organelle functions. We showed that Cu exposure perturbed porcine oocyte meiotic maturation and impaired spindle/chromosome structure, resulting in a defective spindle assembly, as well as the abnormal distribution of actin dynamics and cortical granules. In addition, single-cell transcriptome analysis identified the target effectors of Cu actions in porcine oocytes, further demonstrating that Cu exposure affects the mitochondrial distribution and function, leading to the high levels of reactive oxygen species, DNA damage, and early apoptosis of porcine oocytes. These findings demonstrate that Cu exposure causes abnormalities in the mitochondrial distribution and function, resulting in the increased oxidative stress and levels of reactive oxygen species, DNA damage, and apoptosis, ultimately leading to a decreased porcine oocyte quality.
Collapse
Affiliation(s)
- Jingyue Chen
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Zhaokang Cui
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Yawei Qiu
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Xingxing Zhang
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Fang Chen
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Huili Wang
- Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing, China
| | - Bo Xiong
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Yilong Miao
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Qian Gao
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| |
Collapse
|
3
|
Lopukhov AV, Singina GN, Zinovieva NA. Biotechnological bases of the development of cloned pig embryos. Vavilovskii Zhurnal Genet Selektsii 2019. [DOI: 10.18699/vj19.521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
The term ‘clone’ in animal biotechnology refers to an organism derived from non-sexual reproduction, which is both a direct offspring and a genetic copy of the parent organism. To date, the pig appears to be the most interesting object in cloning research. Somatic cell nuclear transfer in pigs has a wide range of potential applications in various fields of human scientific and economic activities. However, the efficiency of producing cloned embryos in swine is still lower than that of other livestock species, in particular horses and cattle. Somatic cell nuclear transfer is a technically complex multi-stage technology, at each stage of which the pig oocytes, which are more susceptible to changes of surrounding conditions, are affected by various factors (mechanical, physical, chemical). At the stage of oocyte maturation, changes in the cell ultrastructures of the ooplasm occur, which play an important role in the subsequent nuclear reprogramming of the transferred donor cell. Before transfer to the oocyte donor somatic cells are synchronized in the G0/G1 stage of the cell cycle to ensure the normal ploidy of the cloned embryo. When removing the nucleus of pig oocytes maturated in vitro, it is necessary to pay attention to the problem of preserving the viability of cells, which were devoid of their own nuclear material. To perform the reconstruction, a somatic cell is placed, using micro-tools, in the perivitelline space, where the first polar body was previously located, or in the cytoplasm of an enucleated oocyte. The method of manual cloning involves the removal of the oocyte nucleus with subsequent fusion with the donor cell without the use of micromanipulation techniques. The increased sensitivity of oocytes to the environmental conditions causes special requirements for the choice of the system for in vitro culture of cloned pig embryos. In this work, we have reviewed the modern methods used for the production of cloned embryos and identified the technological issues that prevent improving the efficiency of somatic cloning of pigs.
Collapse
Affiliation(s)
- A. V. Lopukhov
- Federal Science Center for Animal Husbandry named after Academy Member L.K. Ernst
| | - G. N. Singina
- Federal Science Center for Animal Husbandry named after Academy Member L.K. Ernst
| | - N. A. Zinovieva
- Federal Science Center for Animal Husbandry named after Academy Member L.K. Ernst
| |
Collapse
|
4
|
Crane AT, Aravalli RN, Asakura A, Grande AW, Krishna VD, Carlson DF, Cheeran MCJ, Danczyk G, Dutton JR, Hackett PB, Hu WS, Li L, Lu WC, Miller ZD, O'Brien TD, Panoskaltsis-Mortari A, Parr AM, Pearce C, Ruiz-Estevez M, Shiao M, Sipe CJ, Toman NG, Voth J, Xie H, Steer CJ, Low WC. Interspecies Organogenesis for Human Transplantation. Cell Transplant 2019; 28:1091-1105. [PMID: 31426664 PMCID: PMC6767879 DOI: 10.1177/0963689719845351] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Blastocyst complementation combined with gene editing is an emerging approach in the
field of regenerative medicine that could potentially solve the worldwide problem of organ
shortages for transplantation. In theory, blastocyst complementation can generate fully
functional human organs or tissues, grown within genetically engineered livestock animals.
Targeted deletion of a specific gene(s) using gene editing to cause deficiencies in organ
development can open a niche for human stem cells to occupy, thus generating human
tissues. Within this review, we will focus on the pancreas, liver, heart, kidney, lung,
and skeletal muscle, as well as cells of the immune and nervous systems. Within each of
these organ systems, we identify and discuss (i) the common causes of organ failure; (ii)
the current state of regenerative therapies; and (iii) the candidate genes to knockout and
enable specific exogenous organ development via the use of blastocyst complementation. We
also highlight some of the current barriers limiting the success of blastocyst
complementation.
Collapse
Affiliation(s)
- Andrew T Crane
- Department of Neurosurgery, University of Minnesota, Minneapolis, USA
| | - Rajagopal N Aravalli
- Department of Electrical and Computer Engineering, University of Minnesota, Minneapolis, USA
| | - Atsushi Asakura
- Stem Cell Institute, University of Minnesota, Minneapolis, USA.,Department of Neurology, University of Minnesota, Minneapolis, USA
| | - Andrew W Grande
- Department of Neurosurgery, University of Minnesota, Minneapolis, USA
| | | | | | - Maxim C-J Cheeran
- Department of Veterinary Population Medicine, University of Minnesota, St. Paul, USA
| | - Georgette Danczyk
- Department of Neurosurgery, University of Minnesota, Minneapolis, USA
| | - James R Dutton
- Stem Cell Institute, University of Minnesota, Minneapolis, USA.,Department of Genetics, Cell Biology, and Development, University of Minnesota, Minneapolis, USA
| | - Perry B Hackett
- Department of Genetics, Cell Biology, and Development, University of Minnesota, Minneapolis, USA
| | - Wei-Shou Hu
- Department of Chemical Engineering and Material Science, University of Minnesota, Minneapolis, USA
| | - Ling Li
- Department of Experimental and Clinical Pharmacology, University of Minnesota, Minneapolis, USA
| | - Wei-Cheng Lu
- Department of Neurosurgery, University of Minnesota, Minneapolis, USA
| | - Zachary D Miller
- Department of Neurosurgery, University of Minnesota, Minneapolis, USA
| | - Timothy D O'Brien
- Stem Cell Institute, University of Minnesota, Minneapolis, USA.,Department of Veterinary Population Medicine, University of Minnesota, St. Paul, USA
| | | | - Ann M Parr
- Department of Neurosurgery, University of Minnesota, Minneapolis, USA.,Stem Cell Institute, University of Minnesota, Minneapolis, USA
| | - Clairice Pearce
- Department of Neurosurgery, University of Minnesota, Minneapolis, USA
| | | | - Maple Shiao
- Department of Neurosurgery, University of Minnesota, Minneapolis, USA
| | | | - Nikolas G Toman
- Department of Neurosurgery, University of Minnesota, Minneapolis, USA
| | - Joseph Voth
- Department of Neurosurgery, University of Minnesota, Minneapolis, USA
| | - Hui Xie
- Department of Neurosurgery, University of Minnesota, Minneapolis, USA
| | - Clifford J Steer
- Stem Cell Institute, University of Minnesota, Minneapolis, USA.,Department of Genetics, Cell Biology, and Development, University of Minnesota, Minneapolis, USA.,Department of Medicine, University of Minnesota, Minneapolis, USA
| | - Walter C Low
- Department of Neurosurgery, University of Minnesota, Minneapolis, USA.,Stem Cell Institute, University of Minnesota, Minneapolis, USA
| |
Collapse
|
5
|
Effect of Kisspeptin on the Developmental Competence and Early Transcript Expression in Porcine Oocytes Parthenogenetically Activated with Different Methods. BIOMED RESEARCH INTERNATIONAL 2018; 2018:3693602. [PMID: 29682539 PMCID: PMC5841116 DOI: 10.1155/2018/3693602] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/06/2017] [Revised: 01/10/2018] [Accepted: 01/17/2018] [Indexed: 12/02/2022]
Abstract
Recent studies showed the modulatory effect of kisspeptin (KP) on calcium waves through the cell membrane and inside the cell. Spermatozoon can induce similar ooplasmic calcium oscillations at fertilization to trigger meiosis II. Here, we evaluated the effect of KP supplementation with 6-dimethylaminopurine (6-DMAP) for 4 h on embryonic development after oocyte activation with single electric pulse, 5 µM ionomycin, or 8% ethanol. Compared to control nonsupplemented groups, KP significantly improved embryo developmental competence electric- and ethanol-activated oocytes in terms of cleavage (75.3% and 58.6% versus 64% and 48%, respectively, p < 0.05) and blastocyst development (31.3% and 10% versus 19.3% and 4%, respectively, p < 0.05). MOS expression was increased in electrically activated oocytes in presence of KP while it significantly reduced CCNB1 expression. In ionomycin treated group, both MOS and CCNB1 showed significant increase with no difference between KP and control groups. In ethanol-treated group, KP significantly reduced CCNB1 but no effect was observed on MOS expression. The early alterations in MOS and CCNB1 mRNA transcripts caused by KP may explain the significant differences in the developmental competence between the experimental groups. Kisspeptin supplementation may be adopted in protocols for porcine oocyte activation through electric current and ethanol to improve embryonic developmental competence.
Collapse
|
6
|
Lee J, You J, Lee GS, Lee ST, Hyun SH, Lee E. Combined Treatment with Demecolcine and 6-Dimethylaminopurine during Postactivation Improves Developmental Competence of Somatic Cell Nuclear Transfer Embryos in Pigs. Anim Biotechnol 2017; 29:41-49. [PMID: 28358237 DOI: 10.1080/10495398.2017.1294598] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
This study determined the effects of postactivation treatment with demecolcine and/or 6-dimethylaminopurine (6-DMAP) on in vivo and in vitro developmental competence of somatic cell nuclear transfer (SCNT) embryos in pigs. SCNT embryos were treated for 4 hours with 0.4 µg/mL demecolcine, 2 mM 6-DMAP, or both after electric activation, then transferred to surrogate pigs or cultured for 7 days. The formation rate of SCNT embryos with a single pronucleus was higher in combined treatment with demecolcine and 6-DMAP (95.2%) than treatment with demecolcine alone (87.1%). Blastocyst formation of SCNT embryos was significantly increased in combined treatment with demecolcine and 6-DMAP (48.7%) compared with demecolcine (22.2%) or 6-DMAP alone (37.3%). Fluctuation of maturation promoting factor activity showed different patterns among various postactivation treatments. Pregnancy was established in 1 of 5 surrogates after transfer of SCNT embryos that were treated with demecolcine and 6-DMAP. The pregnant surrogate delivered one healthy live piglet. The results of our study demonstrated that postactivation treatment with demecolcine and 6-DMAP together improved preimplantation development and supported normal in vivo development of SCNT pig embryos, probably influencing MPF activity and nuclear remodeling, including induction of single pronucleus formation after electric activation.
Collapse
Affiliation(s)
- Joohyeong Lee
- a College of Veterinary Medicine , Kangwon National University , Chuncheon , Korea.,b Institute of Veterinary Science , Kangwon National University , Chuncheon , Korea
| | - Jinyoung You
- a College of Veterinary Medicine , Kangwon National University , Chuncheon , Korea
| | - Geun-Shik Lee
- a College of Veterinary Medicine , Kangwon National University , Chuncheon , Korea
| | - Seung Tae Lee
- c College of Animal Life Science , Kangwon National University , Chuncheon , Korea
| | - Sang-Hwan Hyun
- d College of Veterinary Medicine , Chungbuk National University , Cheongju , Korea
| | - Eunsong Lee
- a College of Veterinary Medicine , Kangwon National University , Chuncheon , Korea.,b Institute of Veterinary Science , Kangwon National University , Chuncheon , Korea
| |
Collapse
|
7
|
Selection of porcine oocytes in vitro through brilliant cresyl blue staining in distinct incubation media. ZYGOTE 2016; 25:49-55. [PMID: 27955714 DOI: 10.1017/s0967199416000319] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Staining with brilliant cresyl blue (BCB) may be used for oocyte selection, but BCB staining itself and the most commonly used selection medium (DMPBS) may compromise the development of porcine oocytes in vitro. This study evaluated DNA fragmentation, nuclear maturation, the area of migration of cortical granules (CG) and embryo development for stained (BCB+) and unstained (BCB-) oocytes incubated in DMPBS and in a modified medium (ReproPel) tested for the first time. Unexposed (UN), BCB+ and BCB- oocytes were incubated composing six groups: DMPBS/UN; DMPBS/BCB+; DMPBS/BCB-; ReproPel/UN; ReproPel/BCB+; and ReproPel/BCB-. There were more BCB+ oocytes in ReproPel than in DMPBS (P < 0.05). The DNA fragmentation was evaluated for oocytes in DMPBS/BCB+, DMPBS/BCB-, ReproPel/BCB+, ReproPel/BCB- and in porcine follicular fluid (control). The frequency of oocytes with no DNA fragmentation was greatest (64.6%) in DMPBS/BCB+ and lowest in ReproPel/BCB+ and ReproPel/BCB- (26.8 and 34.1%, respectively) (P < 0.05). Nuclear maturation rates were greater (P < 0.05) for DMPBS/BCB+ (63.1%), ReproPel/UN (55.1%) and ReproPel/BCB+ (50.2%) than for DMPBS/UN (40.8%) and ReproPel/BCB- (35.5%). The area of CG was greater (P < 0.05) for ReproPel/BCB- (80.7%) and DMPBS/UN (77.6%) than for ReproPel/UN (34.7%). Cleavage rates for DMPBS/BCB+ and ReproPel/BCB+ were greater than for DMPBS/UN (P < 0.05). Blastocyst development rates were greatest (P < 0.05) for ReproPel/UN and ReproPel/BCB+. In both media, BCB staining was apparently unable to select competent oocytes, which likely occurred due to toxicity. Despite the similar nuclear maturation and area of CG compared with DMPBS, oocytes selected in ReproPel presented impaired DNA integrity.
Collapse
|
8
|
Kim KJ, Chun JL, Lee KB, Lee JH, Park KS, Han KW, Lee BM, Kim EY, Kim JM, Kim MK. Effect of acteoside on the re-localization and abnormal morphology of mitochondria in porcine oocytes during in vitro maturation. J Assist Reprod Genet 2016; 33:939-48. [PMID: 27189054 DOI: 10.1007/s10815-016-0729-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2016] [Accepted: 05/03/2016] [Indexed: 11/28/2022] Open
Abstract
PURPOSE The aim of this study is to investigate the effect of acteoside, an antioxidant, on in vitro maturation (IVM) of oocytes to improve early parthenogenetic embryonic developmental competence. METHODS Porcine immature oocytes (total 770) were cultured in IVM medium with acteoside at various concentrations, 0 (control), 10, 30, and 50 μM. Each group was assessed for maturation and subsequent development rates, reactive oxygen species (ROS) level (15 oocytes per group and four independent experiments performed), ultrastructure observation (15 oocytes per group), mitochondrial activity (30 oocytes per groups and three independent experiments performed), and expression patterns of apoptosis-related genes (100 expended parthenogenetic embryos per group and three independent experiment performed). Main outcome measures were the rates of IVM, blastocyst formation, ROS, mitochondria, and expression of apoptosis-related genes in oocytes treated with acteoside. RESULT(S) Addition of acteoside during IVM did not change the maturation efficiency of oocytes but improved the rate of blastocyst formation with significantly decreased ROS level. Moreover, in acteoside-treated oocytes, cytoplasmic maturation was improved with morphologically uniform distribution of mitochondria and lipid droplets in cytoplasm. Acteoside supplementation also increased the mRNA expression levels of antiapoptotic genes and reduced those of pro-apoptotic genes. CONCLUSION(S) Acteoside supplementation in IVM medium improves the oocyte quality and subsequent development of pre-implantation embryos that would eventually contribute to produce embryos with high embryonic development competence.
Collapse
Affiliation(s)
- Keun Jung Kim
- Department of Animal Science and Biotechnology, College of Agriculture and Life Science, Chungnam National University, Daejeon, 305-764, Republic of Korea
| | - Ju Lan Chun
- Department of Animal Science and Biotechnology, College of Agriculture and Life Science, Chungnam National University, Daejeon, 305-764, Republic of Korea
| | - Kyung-Bon Lee
- Department of Biology Education, College of Education, Chonnam National University, Gwangju, 500-757, Republic of Korea
| | - Ji Hye Lee
- Department of Animal Science and Biotechnology, College of Agriculture and Life Science, Chungnam National University, Daejeon, 305-764, Republic of Korea
| | - Kang-Sun Park
- Department of Animal Science and Biotechnology, College of Agriculture and Life Science, Chungnam National University, Daejeon, 305-764, Republic of Korea
| | - Kil Woo Han
- Department of Animal Science and Biotechnology, College of Agriculture and Life Science, Chungnam National University, Daejeon, 305-764, Republic of Korea
| | - Bo Myeong Lee
- Department of Animal Science and Biotechnology, College of Agriculture and Life Science, Chungnam National University, Daejeon, 305-764, Republic of Korea
| | - Eun Young Kim
- Department of Animal Science and Biotechnology, College of Agriculture and Life Science, Chungnam National University, Daejeon, 305-764, Republic of Korea
| | - Jin Man Kim
- Department of Pathology, School of Medicine, Chungnam National University, Daejeon, 301-747, Republic of Korea
| | - Min Kyu Kim
- Department of Animal Science and Biotechnology, College of Agriculture and Life Science, Chungnam National University, Daejeon, 305-764, Republic of Korea.
| |
Collapse
|
9
|
Altered cell cycle gene expression and apoptosis in post-implantation dog parthenotes. PLoS One 2012; 7:e41256. [PMID: 22905100 PMCID: PMC3419697 DOI: 10.1371/journal.pone.0041256] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2011] [Accepted: 06/22/2012] [Indexed: 11/19/2022] Open
Abstract
Mature oocytes can be parthenogenetically activated by a variety of methods and the resulting embryos are valuable for studies of the respective roles of paternal and maternal genomes in early mammalian development. In the present study, we report the first successful development of parthenogenetic canine embryos to the post-implantation stage. Nine out of ten embryo transfer recipients became pregnant and successful in utero development of canine parthenotes was confirmed. For further evaluation of these parthenotes, their fetal development was compared with artificially inseminated controls and differentially expressed genes (DEGs) were compared using ACP RT-PCR, histological analysis and immunohistochemistry. We found formation of the limb-bud and no obvious differences in histological appearance of the canine parthenote recovered before degeneration occurred; however canine parthenotes were developmentally delayed with different cell cycle regulating-, mitochondria-related and apoptosis-related gene expression patterns compared with controls. In conclusion, our protocols were suitable for activating canine oocytes artificially and supported early fetal development. We demonstrated that the developmental abnormalities in canine parthenotes may result from defective regulation of apoptosis and aberrant gene expression patterns, and provided evidence that canine parthenotes can be a useful tool for screening and for comparative studies of imprinted genes.
Collapse
|
10
|
Jena M, Malakar D, De A, Garg S, Akshey Y, Dutta R, Sahu S, Mohanty A, Kaushik J. Handmade cloned and parthenogenetic goat embryos – A comparison of different culture media and donor cells. Small Rumin Res 2012. [DOI: 10.1016/j.smallrumres.2012.03.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
|
11
|
Zhang JY, Diao YF, Oqani RK, Han RX, Jin DI. Effect of Endoplasmic Reticulum Stress on Porcine Oocyte Maturation and Parthenogenetic Embryonic Development In Vitro1. Biol Reprod 2012; 86:128. [DOI: 10.1095/biolreprod.111.095059] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
|
12
|
Brevini T, Pennarossa G, Vanelli A, Maffei S, Gandolfi F. Parthenogenesis in non-rodent species: developmental competence and differentiation plasticity. Theriogenology 2012; 77:766-72. [DOI: 10.1016/j.theriogenology.2011.11.010] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2011] [Revised: 10/19/2011] [Accepted: 11/24/2011] [Indexed: 11/16/2022]
|
13
|
Abstract
AbstractEmbryonic stem cells (ESCs) represent a useful tool for cell therapy studies, however the use of embryos for their derivation give rise to ethical, religious and legal problems when applied to the human. During the last years parthenogenesis has been proposed as an alternative source to obtain ESCs. Based on the fact that parthenotes avoid many concerns surrounding the “ad hoc” in vitro production and following destruction of viable human embryos. Unfortunately many aspects related to parthenogenetic cell biology are not fully understood and still need to be elucidated. In this review we describe advantages and limits of these cells. We discuss their typical ESC morphology and high telomerase activity, which disappears after differentiation. We examine the pluripotency signature that they share with bi-parental ESCs. We review their high differentiation plasticity that allow for the derivation of several mature cell type populations when we expose these cells to adequate conditions. On the other hand, in-depth analysis demonstrated chromosome mal-segregation and altered mechanisms controlling centriole arrangement and mitotic spindle formation in these cells. We hypothesize their monoparental origin as one of the possible cause of these anomalies and suggest a great caution if a therapeutic use is considered.
Collapse
|
14
|
Ock SA, Kwack DO, Mohana Kumar B, Han J, Kim SW, Rho GJ. Effects of Activation Methods on DNA Synthesis and Development of Parthenogenetic Porcine Embryos. Reprod Domest Anim 2011; 46:1082-9. [DOI: 10.1111/j.1439-0531.2011.01790.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
15
|
Cell lines derived from human parthenogenetic embryos can display aberrant centriole distribution and altered expression levels of mitotic spindle check-point transcripts. Stem Cell Rev Rep 2009; 5:340-52. [PMID: 20058199 DOI: 10.1007/s12015-009-9086-9] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2009] [Accepted: 08/04/2009] [Indexed: 10/20/2022]
Abstract
Human parthenogenetic embryos have recently been proposed as an alternative, less controversial source of embryonic stem cell (ESC) lines; however many aspects related to the biology of parthenogenetic embryos and parthenogenetic derived cell lines still need to be elucidated. We present here results on human cell lines (HP1 and HP3) derived from blastocysts obtained by oocyte parthenogenetic activation. Cell lines showed typical ESC morphology, expressed Oct-4, Nanog, Sox-2, Rex-1, alkaline phosphatase, SSEA-4, TRA 1-81 and had high telomerase activity. Expression of genes specific for different embryonic germ layers was detected from HP cells differentiated upon embryoid body (EBs) formation. Furthermore, when cultured in appropriate conditions, HP cell lines were able to differentiate into mature cell types of the neural and hematopoietic lineages. However, the injection of undifferentiated HP cells in immunodeficient mice resulted either in poor differentiation or in tumour formation with the morphological characteristics of myofibrosarcomas. Further analysis of HP cells indicated aberrant levels of molecules related to spindle formation as well as the presence of an abnormal number of centrioles and autophagic activity. Our results confirm and extend the notion that human parthenogenetic stem cells can be derived and can differentiate in mature cell types, but also highlight the possibility that, alteration of the proliferation mechanisms may occur in these cells, suggesting great caution if a therapeutic use of this kind of stem cells is considered.
Collapse
|
16
|
Cervera RP, Silvestre MA, Martí N, García-Mengual E, Moreno R, Stojkovic M. Effects of different oocyte activation procedures on development and gene expression of porcine pre-implantation embryos. Reprod Domest Anim 2009; 45:e12-20. [PMID: 19663811 DOI: 10.1111/j.1439-0531.2009.01509.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Among the factors that affect the efficiency of somatic cell nuclear transfer (SCNT) in pigs, the activation protocol is the most variable among the current SCNT procedures. The aim of this study is focused on defining an efficient activation treatment of porcine oocytes. In Experiment 1, we studied the effects of nine different oocyte activation procedures (including chemical- and electrical-based treatments) on parthenogenetic embryo development. In Experiment 2, we studied the effect of the more efficient activation procedures on the gene expression profile of Oct4 and Igf2r in parthenogenetic blastocysts. In conclusion, ionomycin as a first calcium stimulus is not able to activate porcine oocytes efficiently in comparison with electric procedures. Electrical treatments with 6-DMAP significantly increased the level of Oct4 expression, whereas the single and double pulse treatments alone maintained the same profile as the IVF group.
Collapse
Affiliation(s)
- R P Cervera
- Cellular Reprogramming Laboratory, Centro de Investigación Príncipe Felipe, Avenida Autopista del Saler, Valencia, Spain.
| | | | | | | | | | | |
Collapse
|
17
|
In vitrodevelopment of goat parthenogenetic and somatic cell nuclear transfer embryos derived from different activation protocols. ZYGOTE 2009; 18:51-9. [DOI: 10.1017/s0967199409005504] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
SummaryOocyte activation is an essential step in animal cloning to allow subsequent development of the reconstructed embryos. A special activation protocol is required for different animal species. The present study investigated low temperature, electrical pulses, ethanol, ionomycin and strontium for goat oocyte activation in order to optimize the protocols. We found, as a result, effective activation and parthenogenetic development of goat oocytes that had been derived from ionomycin, strontium and electrical pulse groups. Within each group 79.3–81.6%, 2.2–78.8% and 65.5% of the oocytes cleaved and 16.2–24.8%, 0–15.6% and 11.1% of the cleaved embryos developed into blastocysts when the oocytes were activated by ionomycin combined with 6-dimethylaminopurine, strontium plus cytochalasin B and electrical pulses combined with cytochalasin B, respectively. However, low temperature and ethanol were both unable to activate goat oocytes under our experimental conditions. When ionomycin combined with 6-dimethylaminopurine and strontium plus cytochalasin B was applied to activate somatic cell nuclear transfer embryos derived from cultured cumulus, 51.0% and 72.5% of the embryos cleaved, respectively. After transfer of 4-cell embryos into recipients, one (1/19 and 1/7) of the recipients from each group was found to be pregnant as detected by ultrasound, but both of these recipients lost the embryos between 45 and 60 days of pregnancy.
Collapse
|
18
|
Choi J, Park SM, Lee E, Kim JH, Jeong YI, Lee JY, Park SW, Kim HS, Hossein MS, Jeong YW, Kim S, Hyun SH, Hwang WS. Anti-apoptotic effect of melatonin on preimplantation development of porcine parthenogenetic embryos. Mol Reprod Dev 2008; 75:1127-35. [DOI: 10.1002/mrd.20861] [Citation(s) in RCA: 66] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|