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Saadeldin IM, Swelum AAA, Elsafadi M, Moumen AF, Alzahrani FA, Mahmood A, Alfayez M, Alowaimer AN. Isolation and characterization of the trophectoderm from the Arabian camel (Camelus dromedarius). Placenta 2017; 57:113-122. [PMID: 28863999 DOI: 10.1016/j.placenta.2017.06.015] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/18/2017] [Revised: 06/15/2017] [Accepted: 06/15/2017] [Indexed: 12/12/2022]
Abstract
We isolated and characterized trophoblast from in vivo-derived camel embryos and compared with embryonic stem-like cells. Camel embryos were flushed on day 8 post-insemination and used to derive trophectoderm and embryonic stem-like cells under feeder-free culture conditions using a basement membrane matrix. Embryos were evaluated for the expression of POU5F1, MYC, KLF4, SOX2, CDX2, and KRT8 mRNA transcripts by relative quantitative polymerase chain reaction. Camel embryos grew and expanded to ∼4.5 mm and maintained their vesicular shape in vitro for 21 days post-insemination. Trophoblast and embryonic stem-like cell lines grew under feeder-free culture conditions and showed distinct morphological criteria and normal chromosomal counts. Embryonic stem-like cells showed positive staining in the alkaline phosphatase reaction. Trophoblast cells showed a significant increase in CDX2, KRT8, KLF4, and SOX2 expression compared with embryonic stem-like cells and whole embryos. Embryonic stem-like cells showed a significant decrease in CDX2 expression and increase in SOX2 and KRT8 expression compared to embryonic expression. POU5F1 and MYC expression showed no difference between embryos and both cell lines. We characterized embryo survival in vitro, particularly the derivation of trophectoderm and embryonic stem-like cells, providing a foundation for further analysis of early embryonic development and placentation in camels.
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Swelum AAA, Saadeldin IM, Zaher HA, Alsharifi SA, Alowaimer AN. Effect of sexual excitation on testosterone and nitric oxide levels of water buffalo bulls ( Bubalus bubalis ) with different categories of sexual behavior and their correlation with each other. Anim Reprod Sci 2017; 181:151-158. [DOI: 10.1016/j.anireprosci.2017.04.003] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2017] [Revised: 04/01/2017] [Accepted: 04/10/2017] [Indexed: 11/16/2022]
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103
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Abd El-Hack ME, Mahrose K, Arif M, Chaudhry MT, Saadeldin IM, Saeed M, Soomro RN, Abbasi IHR, Rehman ZU. Alleviating the environmental heat burden on laying hens by feeding on diets enriched with certain antioxidants (vitamin E and selenium) individually or combined. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:10708-10717. [PMID: 28283980 DOI: 10.1007/s11356-017-8690-5] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2016] [Accepted: 02/22/2017] [Indexed: 06/06/2023]
Abstract
The present study was designed to alleviate the negative biohazards of high ambient temperature on the productive performance and physiological status of laying hens. A total of 135 Bovans laying hens were distributed into nine groups in a 3 × 3 factorial design experiment. Basal diet was supplemented with vitamin E at levels of 0, 250, and 500 mg /kg diet. Within each dietary vitamin E level, each diet was supplemented with sodium selenite as a source of selenium (Se) to supply 0, 0.25, and 0.50 mg Se/kg diet. Results showed that supplementing layer's diet with 500 mg vitamin E/kg was accompanied with the lowest feed consumption (FC) and feed conversion ratio (FCR). The interaction among vitamin E and Se levels exerted significant effects only on FC and FCR. Insignificant differences were observed in egg quality criteria due to the treatments studied. Increasing vitamin E level was associated with a gradual decrease in basophil count and an increase in monocytes. A gradual decrease in the count of each of heterophils, monocytes, and eosinophils was observed with the elevation in the dietary Se level. The combination among vitamin E and Se levels produced a significant effect on all hematological parameters studied. As vitamin E increased, a marked decrease in serum AST and a gradual increase in total lipids, total cholesterol, and calcium were observed. As the level of dietary Se increased, serum total protein, albumin, T4, total cholesterol, and total lipids increased. No significant impacts were detected for the interaction among vitamin E and Se levels on any of blood constituents determined except serum globulin, ALT, and calcium. In conclusion, the combination between vitamin E and Se showed a good ability to alleviate the harmful impacts of heat stress and produced the highest productive performance when compared with the other groups, which exhibit the synergistic effect between the two antioxidants.
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Almadaly EA, Farrag FA, Saadeldin IM, El-Magd MA, El-Razek IMA. Relationship between total protein concentration of seminal plasma and sperm characteristics of highly fertile, fertile and subfertile Barki ram semen collected by electroejaculation. Small Rumin Res 2016. [DOI: 10.1016/j.smallrumres.2016.07.023] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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105
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Hussein MMA, Ali HA, Saadeldin IM, Ahmed MM. Querectin Alleviates Zinc Oxide Nanoreprotoxicity in Male Albino Rats. J Biochem Mol Toxicol 2016; 30:489-496. [DOI: 10.1002/jbt.21812] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2016] [Revised: 03/15/2016] [Accepted: 03/22/2016] [Indexed: 12/13/2022]
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106
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Kang JT, Moon JH, Choi JY, Park SJ, Kim SJ, Saadeldin IM, Lee BC. Effect of Antioxidant Flavonoids (Quercetin and Taxifolin) on In vitro Maturation of Porcine Oocytes. ASIAN-AUSTRALASIAN JOURNAL OF ANIMAL SCIENCES 2016; 29:352-8. [PMID: 26950865 PMCID: PMC4811785 DOI: 10.5713/ajas.15.0341] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/20/2015] [Revised: 07/04/2015] [Accepted: 07/17/2015] [Indexed: 11/27/2022]
Abstract
Quercetin (QT) and taxifolin (TF) are structurally similar plant-derived flavonoids that have antioxidant properties and act as free radical scavengers. The objective of this study was to investigate effects of QT and TF on nuclear maturation of porcine oocytes. Effects of TF at 0, 1, 10, and 50 μg/mL on oocyte nuclear maturation (polar body extrusion) were investigated. After incubation for 44 h, there were no significant differences between the treatment and control groups except in the 50 μg/mL group which was significantly lower (59.2%, p<0.05) than the other groups (control: >80%). After parthenogenetic activation, further in vitro development of QT- or TF-treated vs control oocytes was investigated. A significantly higher proportion of QT-treated (1 μg/mL) oocytes developed into blastocysts compared to controls (24.3% vs 16.8%, respectively); however, cleavage rate and blastocyst cell number were not affected. The TF-treated group was not significantly different from controls. Levels of reactive oxygen species (ROS) and intracellular glutathione (GSH) in oocytes and embryos in a culture medium supplemented with QT or TF were measured. Both treatment groups had significantly lower (p<0.05) levels of ROS than controls, however GSH levels were different only in QT-treated oocytes. We conclude that exogenous flavonoids such as QT and TF reduce ROS levels in oocytes. Although at high concentration (50 μg/mL) both QT and TF appear to be toxic to oocytes.
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107
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Saadeldin IM, Khoirinaya C, Kim SJ, Moon JH, Almadaly E, Lee BC. Blastocysts derivation from somatic cell fusion with premature oocytes (prematuration somatic cell fusion). Dev Growth Differ 2016; 58:157-66. [PMID: 26857553 DOI: 10.1111/dgd.12264] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2015] [Revised: 01/03/2016] [Accepted: 01/04/2016] [Indexed: 11/28/2022]
Abstract
This study was undertaken to investigate the development of immature oocytes after their fusion with male somatic cells expressing red fluorescence protein (RFP). RFP-expressing cells were fused with immature oocytes, matured in vitro and then parthenogenetically activated. Somatic nuclei showed spindle formation, 1st polar body extrusion after in vitro maturation and protruded the 2nd polar body after parthenogenetic activation. RFP was expressed in the resultant embryos; two-cell stage and blastocysts. Chromosomal analysis showed aneuploidy in 81.82% of the resulting blastocysts while 18.18% of the resulting blastocysts were diploid. Among eight RFP-expressing blastocysts, Xist mRNAs was detected in six while Sry mRNA was detected in only one blastocyst. We propose "prematuration somatic cell fusion" as an approach to generate embryos using somatic cells instead of spermatozoa. The current approach, if improved, would assist production of embryos for couples where the male partner is sterile, however, genetic and chromosomal analysis of the resultant embryos are required before transfer to the mothers.
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108
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Saadeldin IM, Oh HJ, Lee BC. Embryonic-maternal cross-talk via exosomes: potential implications. STEM CELLS AND CLONING-ADVANCES AND APPLICATIONS 2015; 8:103-7. [PMID: 26185458 PMCID: PMC4500606 DOI: 10.2147/sccaa.s84991] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
A myriad of locally produced factors into the microenvironment of the reproductive tract is regulated, not one-way but rather, through embryonic-maternal cross-talk. In this mini-review, we focused on the exosomes, which are cell-derived vesicles of 30-100 nm in diameter, as a communicating language facilitating this dialog. These nanovesicles are secreted from pre-implantation embryos, oviduct epithelium, and endometrium as well as from the placenta, and contain proteins, messenger RNA (mRNA), microRNA, and DNA cargoes, and have pleiotropic effects on both embryonic and maternal environments. A better understanding of the molecular mechanisms mediating this cross-talk will lead to the development of new regulating agents, with novel diagnostic, biological, and therapeutic potential for either supporting or hindering the normal reproductive functions.
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109
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Saadeldin IM, Kim SJ, Lee BC. Blastomeres aggregation as an efficient alternative for trophoblast culture from porcine parthenogenetic embryos. Dev Growth Differ 2015; 57:362-368. [DOI: 10.1111/dgd.12215] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2015] [Revised: 04/06/2015] [Accepted: 04/07/2015] [Indexed: 02/02/2023]
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110
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Oh HJ, Kim GA, Rhee SH, Kim MJ, Saadeldin IM, Lee BC. Age-dependent alteration of transgene expression and cytomegalovirus promoter methylation in transgenic cloned and recloned dogs. Mol Reprod Dev 2015; 82:330-1. [PMID: 25940370 DOI: 10.1002/mrd.22481] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2015] [Revised: 03/21/2015] [Accepted: 03/24/2015] [Indexed: 11/09/2022]
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111
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Saadeldin IM, Elsayed A, Kim SJ, Moon JH, Lee BC. A spatial model showing differences between juxtacrine and paracrine mutual oocyte-granulosa cells interactions. INDIAN JOURNAL OF EXPERIMENTAL BIOLOGY 2015; 53:75-81. [PMID: 25757237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The bidirectional communication between oocytes and granulosa cells are mediated by several factors via a local feedback loop(s). The current model was carried out to study the spatial mutual interaction of porcine denuded oocytes and granulosa cells either in direct contact (juxtacrine) or paracrine co-culture using transwell system. Transwell 0.4 μm polyester membrane inserts were used to permit oocytes-granulosa cells paracrine communication with a distance of 2 mm between them in co-culture. Oocytes were cultured with granulosa cells in a defined basic maturation medium for 44 h. In results, oocyte secreted factors (OSFs; GDF9 and BMP15) temporal expression showed progressive decrement by the end of culture in case of direct contact with granulosa cells while it was increased progressively in the paracrine co-culture groups. However, oocytes that were cultured in direct contact showed a significant increase in blastocyst development after parthenogenetic activation than the paracrine co-cultured ones (20% vs. 11.5%, respectively). By the end of culture, granulosa cell count in direct contact showed a significant decrease than the indirect co-culture group (1.2 x 105 cell/mL vs. 2.1 x 10(5) cell/mL, respectively). Steroids (P4 and E2) and steriodogenesis enzymes mRNA levels showed significant temporal alterations either after 22 h and 44 h of IVM in both juxtacrine and paracrine co-culture systems (P ≤ 0.05). CX43 was much more highly expressed in the granulosa of the direct contact group than the indirect co-culture group. These results indicate the difference in mutual communication between oocytes and granulosa cells that were cocultured either in direct contact (juxtacrine) or with a short distance (paracrine) and propose a new paradigm to study different ovarian follicular cells interaction.
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112
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Kwon D, Saadeldin IM, Kim SJ, Park SJ, Kang JT, Park HJ, Moon JH, Koo OJ, Jang G, Lee BC. Optimizing electrical activation of porcine oocytes by adjusting pre- and post-activation mannitol exposure times. Reprod Domest Anim 2014; 49:995-9. [PMID: 25256295 DOI: 10.1111/rda.12420] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2014] [Accepted: 08/10/2014] [Indexed: 11/29/2022]
Abstract
Modifying electrical activation conditions have been used to improve in vitro embryo production and development in pigs. However, there is insufficient information about correlations of porcine embryo development with oocyte pre- and post-activation conditions. The purpose of this study was to compare the developmental rates of porcine oocytes subjected to different mannitol exposure times, either pre- or post-electrical activation, and to elucidate the reason for the optimal mannitol exposure time. Mannitol exposure times around activation were adjusted as 0, 1, 2 or 3 min. Blastocyst development were checked on day 7. Exposure of oocytes to mannitol for 1 or 2 min before electrical activation produced significantly higher blastocyst rates than exposure for 0 or 3 min. There was no significant difference in blastocyst rates when activated oocytes were exposed to mannitol for 0, 1, 2 or 3 min after electrical activation. While exposure of oocytes to mannitol for 1 min pre- and 3 min post-activation showed significantly higher blastocyst development than 0 min pre- and 0 min post-activation. It also showed higher maintenance of normal oocyte morphology than exposure for 0 min pre- and 0 min post-activation. In conclusion, exposure of oocytes to mannitol for 1 min pre- and 3 min post-activation seems to be optimal for producing higher in vitro blastocyst development of porcine parthenogenetic embryos. The higher blastocyst development is correlated with higher maintenance of normal morphology in oocytes exposed to mannitol for 1 min pre- and 3 min post-activation.
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113
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Saadeldin IM, Kim SJ, Choi YB, Lee BC. Improvement of cloned embryos development by co-culturing with parthenotes: a possible role of exosomes/microvesicles for embryos paracrine communication. Cell Reprogram 2014; 16:223-34. [PMID: 24773308 DOI: 10.1089/cell.2014.0003] [Citation(s) in RCA: 106] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
It is well known that embryos cultured in a group can create a microenvironment through secretion of autocrine and paracrine factors that can support and improve the embryos' development when compared to the embryos cultured individually. In this study, we used a co-culture system for paracrine communication between different kinds of embryos. The results showed that co-culture of porcine parthenogenetic (PA) embryos significantly improved the in vitro development of cloned (nuclear transfer, NT) embryos. To reveal the possible mechanism of communication between the two groups, we isolated exosomes/microvesicles (EXs/MVs) from the PA embryos conditioned medium (PA-CM) through differential centrifugation and identified them through transmission electron microscope and immunoflourescence against exosomal/membrane marker CD9. Furthermore, these EXs/MVs were found to contain mRNA of pluripotency genes (Oct4, Sox2, Klf4, c-Myc, and Nanog), and the PKH67-labeled EXs/MVs could be internalized by the NT embryos. The current study demonstrates that cloned embryos' developmental competence can be improved through co-culturing with PA embryos and revealed, for the first time, that in vitro-produced embryos can secrete EXs/MVs as a possible communication tool within their microenvironment. Moreover, it provides a new paradigm for embryo-to-embryo communication in vitro.
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Choi JY, Kang JT, Park SJ, Kim SJ, Moon JH, Saadeldin IM, Jang G, Lee BC. Effect of 7,8-dihydroxyflavone as an antioxidant on in vitro maturation of oocytes and development of parthenogenetic embryos in pigs. J Reprod Dev 2013; 59:450-6. [PMID: 23748647 PMCID: PMC3934122 DOI: 10.1262/jrd.2012-134] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
One of the factors that impairs in vitro produced porcine embryos
is the oxidative stress that is mainly caused by the imbalance between reactive
oxygen species (ROS) generation and antioxidants activity, especially that of
glutathione (GSH). Here, we examined the effect of 7,8-dihydroxyflavone (7,8-DHF), a
kind of flavonoid antioxidant, on porcine oocyte maturation and its developmental
competence. Porcine oocytes were cultured in media supplemented with 0, 1, 5 and 10
μM 7,8-DHF during both in vitro maturation (IVM) and in
vitro culture (IVC) after parthenogenetic activation. Maturation of
oocytes was evaluated based on first polar body (PB) extrusion and intracellular GSH
level, and developmental competence was assessed through observing cleavage and
blastocyst formation. In each step, the levels of intracellular GSH and ROS were
assessed by fluorescence intensity, and the apoptosis-related gene expression was
examined using semiquantitative RT-PCR. The group treated with 1 μM 7,8-DHF during
IVM and IVC showed increased cytoplasmic maturation and reached the blastocysts stage
(36.1%) at a higher rate than the other groups (24.7, 16.0 and 10.3% for 0, 5 and 10
μM, P<0.05). In that group, the intracellular GSH level was significantly
increased while ROS generation was significantly decreased after IVM and IVC
(P<0.05). Moreover, it showed high expression of an anti-apoptotic gene
(BCL2L1) and low expression of a pro-apoptotic gene
(BAK1) (P<0.05). In conclusion, treatment with 1 μM 7,8-DHF
during IVM and IVC showed an anti-apoptotic effect by increasing intracellular GSH
synthesis and scavenging ROS and therefore improved the developmental competence of
porcine embryos.
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115
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Saadeldin IM, Koo OJ, Kang JT, Kwon DK, Park SJ, Kim SJ, Moon JH, Oh HJ, Jang G, Lee BC. Paradoxical effects of kisspeptin: it enhances oocyte in vitro maturation but has an adverse impact on hatched blastocysts during in vitro culture. Reprod Fertil Dev 2012; 24:656-68. [PMID: 22697116 DOI: 10.1071/rd11118] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2011] [Accepted: 07/30/2011] [Indexed: 12/20/2022] Open
Abstract
Kisspeptin (Kp) is best known as a multifunctional peptide with roles in reproduction, the cardiovascular system and cancer. In the present study the expression of kisspeptin hierarchy elements (KISS1, GNRH1 and LHB) and their receptors (KISS1R, GNRHR and LHCGR, respectively) in porcine ovary and in cumulus-oocyte complexes (COCs) were investigated, as were its effects on the in vitro maturation (IVM) of oocytes and their subsequent ability to sustain preimplantation embryo competence after parthenogenetic electrical activation. Kp system elements were expressed and affected IVM of oocytes when maturation medium was supplemented with 10(-6)M Kp. Oocyte maturation, maternal gene expression (MOS, GDF9 and BMP15), blastocyst formation rate, blastocyst hatching and blastocyst total cell count were all significantly increased when oocytes were matured in medium containing Kp compared with the control group (without Kp). A Kp antagonist (p234) at 4×10(-6)M interfered with this hierarchy but did not influence the threshold effect of gonadotrophins on oocyte maturation. FSH was critical and permissive to Kp action on COCs by increasing the relative expression of KISS1R. In contrast, Kp significantly increased apoptosis, the expression of pro-apoptotic gene, BAK1, and suppressed trophoblast outgrowths from hatched blastocysts cultured on feeder cells. The present study provides the first functional evidence of the Kp hierarchy in porcine COCs and its role in enhancing oocyte maturation and subsequent developmental competence in an autocrine-paracrine manner. However, Kp supplementation may have a harmful impact on cultured hatched blastocysts reflecting systemic or local regulation during the critical early period of embryonic development.
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116
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Moon J, Kim S, Park H, Kang J, Park S, Koo O, da Torre BR, Saadeldin IM, Lee B, Jang G. Production of porcine cloned embryos derived from cells conditionally expressing an exogenous gene using Cre-loxP. ZYGOTE 2012; 20:423-5. [PMID: 22272567 DOI: 10.1017/s0967199411000773] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
It is increasingly evident that conditional gene expression in pigs is necessary to make transgenic models. In this study, we investigated conditional expression in porcine fetal fibroblasts using Cre-loxP recombination, a system that has had limited application in large animals to date. Transformed fibroblasts were reprogrammed in enucleated oocytes to support further early embryonic development. Fetal fibroblasts from miniature pigs were used for transfection with a plasmid that contained a red fluorescent protein marker (pCALNL-DsRed) and a floxed neomycin-resistance gene. Cells were selected with 750 μg/ml neomycin for 2 weeks following transfection but did not express DsRed after visualization under a fluorescence microscope. Expression was achieved only after transient transfection with plasmid DNA that expressed the Cre recombinase enzyme. The cells that expressed DsRed were used for somatic cell nuclear transfer (SCNT). A total of 121 oocytes were used for SCNT and 76 cloned embryos (62.8%) were seen to have cleaved. Six blastocysts developed after SCNT and expressed DsRed. Deletion of the floxed neomycin-resistance gene was confirmed by reverse transcription polymerase chain reaction (RT-PCR) in cloned blastocysts. This study demonstrated that Cre-loxP recombination can be conducted successfully in miniature pig fibroblasts and that the sequentially transformed cells can develop to the pre-implantation embryo stage via SCNT.
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117
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Choi JY, Kang JT, Park SJ, Kim SJ, Moon JH, Saadeldin IM, Kim T, Jang G, Lee BC. 7,8-Dihydroxyflavone Improves In Vitro Development of Porcine Oocytes/Embryos by Decreasing Reactive Oxygen Species Levels. Biol Reprod 2012. [DOI: 10.1093/biolreprod/87.s1.217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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118
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Saadeldin IM, Choi W, Roibas Da Torre B, Kim B, Lee B, Jang G. Embryonic development and implantation related gene expression of oocyte reconstructed with bovine trophoblast cells. J Reprod Dev 2012; 58:425-31. [PMID: 22522228 DOI: 10.1262/jrd.11-112h] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The temporal progressive increase of interferon tau (IFNτ) secretion from the bovine trophoblast is a major embryonic signal of establishing pregnancy. Here, we cultured and isolated bovine trophoblast cells (BTs) from IVM/IVF oocytes and in vitro produced blastocysts, used them, for the first time, as donor cells for nuclear transfer and compared them with adult fibroblasts (AFs) as donor cells. BTs were reprogrammed in enucleated oocytes to blastocysts with similar efficiency to AFs (14.5% and 15.6% respectively, P≤0.05). The levels of IFNτ, CDX2 and OCT4 expression in IVF-, BT- and AF-derived blastocysts were analyzed using reverse transcription polymerase chain reaction and reverse transcription quantitative polymerase chain reaction (RT-PCR and RT-qPCR). IVF-produced embryos were used as reference to analyze the linear progressive expression of IFNτ through mid, expanded and hatching blastocysts. RT-PCR and RT-qPCR studies showed that IFNτ expression was higher in BT-derived blastocysts than IVF- and AF-derived blastocysts. Both IVF- and BT-derived blastocysts showed a progressive increase in IFNτ expression as blastocyst development advanced when it compared with AF-derived blastocysts. OCT4 was inversely related with IFNτ expression, while CDX2 was found to be directly related with IFNτ temporal expression. Persistence of high expression of IFNτ and CDX2 was found to be higher in BT-derived embryos than in IVF- or AF-derived embryos. In conclusion, using BTs expressing IFNτ as donor cells for bovine NT could be a useful tool for understanding the IFNτ genetics and epigenetics.
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119
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Kim S, Saadeldin IM, Choi WJ, Lee SJ, Lee WW, Kim BH, Han HJ, Bang DH, Lee BC, Jang G. Production of transgenic bovine cloned embryos using piggybac transposition. J Vet Med Sci 2011; 73:1453-7. [PMID: 21747215 DOI: 10.1292/jvms.11-0054] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Transgenic research on cattle embryos has been developed to date using viral or plasmid DNA delivery systems. In this study, a different gene delivery system, piggybac transposition, was employed to investigate if it can be applied for producing transgenic cattle embryos. Green or red fluorescent proteins (GFP or RFP) were transfected into donor fibroblasts, and then transfected donor cells were reprogrammed in enucleated oocytes through SCNT and developed into pre-implantation stage embryos. GFP was expressed in donor cells and in cloned embryos without any mosaicism. Induction of RFP expression was regulated by doxycycline treatment in donor fibroblasts and pre-implantational stage embryos. In conclusion, this study demonstrated that piggybac transposition could be a mean to deliver genes into bovine somatic cells or embryos for transgenic research.
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120
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Kwon DK, Koo OJ, Park SJ, Kang JT, Park HJ, Kim SJ, Moon JH, Saadeldin IM, Jang G, Lee BC. Optimizing Porcine Oocytes Electrical Activation by Adjusting Pre- and Post-Activation Mannitol Exposure Time. Biol Reprod 2011. [DOI: 10.1093/biolreprod/85.s1.176] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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121
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Kang JT, Kwon DK, Park SJ, Kim SJ, Moon JH, Saadeldin IM, Koo OJ, Jang G, Lee BC. Quercetin Improves In Vitro Development of Porcine Oocytes by Decreasing Reactive Oxygen Species Levels. Biol Reprod 2011. [DOI: 10.1093/biolreprod/85.s1.589] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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122
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Saadeldin IM, Koo OJ, Kang JT, Kwon DK, Park S, Kim SJ, Moon JH, Oh HJ, Jang G, Lee BC. Kisspeptin Enhances Porcine Oocyte In Vitro Maturation but May Adversely Affect Early Embryonic Development. Biol Reprod 2011. [DOI: 10.1093/biolreprod/85.s1.434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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123
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Saadeldin IM, Kim B, Lee B, Jang G. Effect of different culture media on the temporal gene expression in the bovine developing embryos. Theriogenology 2011; 75:995-1004. [DOI: 10.1016/j.theriogenology.2010.11.006] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2010] [Revised: 11/04/2010] [Accepted: 11/05/2010] [Indexed: 10/18/2022]
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