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Bang YJ, Jeong H, Kang R, Sung JH, Choi SJ, Oh SY, Hahm TS, Shin YH, Jeong YW, Choi SJ, Ko JS. Comparison of analgesic effects between programmed intermittent epidural boluses and continuous epidural infusion after cesarean section: a randomized controlled study. Korean J Anesthesiol 2024:kja.23726. [PMID: 38481356 DOI: 10.4097/kja.23726] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Accepted: 03/14/2024] [Indexed: 03/23/2024] Open
Abstract
Background This study aimed to compare the analgesic effects of programmed intermittent epidural boluses (PIEB) and continuous epidural infusion (CEI) for postoperative analgesia after elective cesarean section (CS). Methods Seventy-four women who underwent elective CS were randomized to receive either PIEB or CEI. The PIEB group received 4 ml-intermittent boluses of 0.11% ropivacaine every hour at a rate of 120 ml/h. The CEI group received a constant rate of 4 ml/h of 0.11% ropivacaine. The primary outcome was the pain score at rest at 36 h after CS. Secondary outcomes included the pain scores during mobilization, time-weighted pain scores, the incidence of motor blockade, and complications-related epidural analgesia during 36 h after CS. Results The pain score at rest at 36 h after CS was significantly lower in the PIEB group compared with that in the CEI group (3.0 vs. 0.0; median difference, 2; 95% CI: 1, 2; P < 0.001). The mean time-weighted pain scores at rest and during mobilizations were also significantly lower in the PIEB group than in the CEI group (pain at rest: mean differences, 37.5; 95% CI, [24.6, 50.4]; P < 0.001; pain during mobilization: mean difference, 56.6; 95% CI, [39.8, 73.5]; P < 0.001). The incidence of motor blockade was significantly reduced in the PIEB group compared with that in the CEI group (P < 0.001). Conclusion PIEB provides superior analgesia with less motor blockade than CEI in postpartum women after CS, without any apparent adverse events.
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Affiliation(s)
- Yu Jeong Bang
- Department of Anesthesiology and Pain Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Heejoon Jeong
- Department of Anesthesiology and Pain Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - RyungA Kang
- Department of Anesthesiology and Pain Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Ji-Hee Sung
- Department of Obstetrics and Gynecology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Suk-Joo Choi
- Department of Obstetrics and Gynecology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Soo-Young Oh
- Department of Obstetrics and Gynecology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Tae Soo Hahm
- Department of Anesthesiology and Pain Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Young Hee Shin
- Department of Anesthesiology and Pain Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Yeon Woo Jeong
- Department of Anesthesiology and Pain Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Soo Joo Choi
- Department of Anesthesiology and Pain Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Justin Sangwook Ko
- Department of Anesthesiology and Pain Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
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Hossein MS, Son YB, Jeong YW, Jeong YI, Kang MN, Choi EJ, Park KB, Bae YR, Kim DY, Hwang WS. Production of transgenic first filial puppies expressing mutated human amyloid precursor protein gene. Front Vet Sci 2023; 10:1227202. [PMID: 37964915 PMCID: PMC10642565 DOI: 10.3389/fvets.2023.1227202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Accepted: 10/03/2023] [Indexed: 11/16/2023] Open
Abstract
Propagation of transgenic animals by germline transmission using assisted reproductive technologies such as in vitro fertilization (IVF) is the most efficient way to produce transgenic colonies for biomedical research. The objective of this study was to generate transgenic puppies from a founder dog expressing the mutated human amyloid precursor protein (mhAPP) gene. Experiment I assessed the characteristics of the semen prepared by freshly diluted, swim-up, and Percoll gradient methods using a computer-assisted semen analyzer (CASA). Motile and progressively motile sperm counts were higher in the Percoll gradient samples (p < 0.05) than in the swim-up and freshly diluted samples. In Experiment II, a total of 59, 70, and 65 presumptive zygotes produced by fresh, Percoll gradient, and swim-up methods, respectively, were transferred to surrogates (5 for each group); the Percoll gradient (27.27%) and swim-up samples (14.29%) showed the highest blastocyst formation rates, while fresh diluted semen did not produce any blastocyst. Experiment III examined the full-term developmental ability of embryos. Among the 5 surrogates in the Percoll gradient group, one (20.0%) became pregnant; it had 4 (6.15%) sacs and delivered 4 (6.15%; 2 males and 2 females) live puppies. Among the 4 puppies, 2 (50.0%) were found to transmit the transgene on their nail and toe under GFP fluorescence. Furthermore, the integration and expression of the mhAPP transgene were examined in the umbilical cords of all the IVF-derived puppies, and the presence of the transgene was only observed in the GFP-positive puppies. Thus, semen prepared by the Percoll method could generate transgenic puppies by male germline transmission using the IVF technique. Our result will help propagate transgenic dogs efficiently, which will foster human biomedical research.
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Affiliation(s)
| | - Young-Bum Son
- UAE Biotech Research Centre, Abu Dhabi, United Arab Emirates
- Department of Obstetrics, College of Veterinary Medicine, Chonnam National University, Gwangju, Republic of Korea
| | - Yeon Woo Jeong
- UAE Biotech Research Centre, Abu Dhabi, United Arab Emirates
- Department of Companion Animal and Animal Resources Science, Joongbu University, Geumsan-gun, Republic of Korea
| | - Yeon Ik Jeong
- UAE Biotech Research Centre, Abu Dhabi, United Arab Emirates
| | - Mi Na Kang
- UAE Biotech Research Centre, Abu Dhabi, United Arab Emirates
| | - Eun Ji Choi
- UAE Biotech Research Centre, Abu Dhabi, United Arab Emirates
| | - Kang Bae Park
- UAE Biotech Research Centre, Abu Dhabi, United Arab Emirates
| | - Yu Ra Bae
- UAE Biotech Research Centre, Abu Dhabi, United Arab Emirates
| | - Dae Young Kim
- Department of Life Science, College of Bio-nano Technology, Gachon University, Seongnam, Republic of Korea
| | - Woo Suk Hwang
- UAE Biotech Research Centre, Abu Dhabi, United Arab Emirates
- Department of Biology, North-Eastern Federal University, Yakutsk, Russia
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Mansour N, Lamghari F, Nasef M, Al Busaidi TM, Hossein MS, Jeong YI, Kang M, Kim H, Bae Y, Eum BH, Jeong YW, Hwang WS. Effect of the interval from GnRH administration after ovarian super-stimulation on the recovered oocytes, and effect of the transferred cloned blastocysts on the pregnancy rate and pregnancy loss in dromedary camel. Theriogenology 2023; 208:1-7. [PMID: 37290143 DOI: 10.1016/j.theriogenology.2023.05.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 05/05/2023] [Accepted: 05/10/2023] [Indexed: 06/10/2023]
Abstract
The present study was conducted to evaluate the number and maturity of the recovered oocytes after two intervals of in-vivo maturation. In addition to evaluating the effect of the developmental stage, as well as the number of cloned transferred blastocysts on the pregnancy rate and early pregnancy loss (EPL) in dromedary camel. The donor animals (n = 52) were super-stimulated using a single injection of 3000 IU of eCG followed by GnRH administration for oocyte maturation. Cumulus oocyte complexes (COCs) were collected by transvaginal ultrasound-guided aspiration (OPU) either 24-26 h or 18-20 h after GnRH administration. A fewer number of COCs with a lower percentage of oocyte maturity was observed at 24-26 h in comparison to 18-20 h. The effect of the cloned blastocysts' transferred number and developmental stage on the pregnancy rate and EPL was investigated. The total pregnancy rates at 10 days post-ET, 1 and 2 months were 21.9, 12.4, and 8.6%, respectively. Transfer of two or 3-4 embryos per surrogate was accompanied with a higher pregnancy rate at 1 and 2 months than a single embryo transfer. Rates of EPL were 43.5 and 60.1% at 1 and 2 months of pregnancy, respectively. The transfer of two embryos per surrogate was associated with a lower rate of EPL than ET of a single embryo at 1 and 2 months of pregnancy. Also, the ET of 3-4 embryos per surrogate showed a higher rate of EPL than the ET of two embryos at 2 months of pregnancy. ET of hatching (HG) blastocysts showed higher pregnancy rates and fewer EPL than ET of unhatched (UH) or fully hatched (HD) cloned blastocysts at 1 and 2 months of pregnancy. In conclusion, a high number of in-vivo matured oocytes can be recovered by ultrasound-guided transvaginal OPU from super-stimulated females using 3000 IU eCG and an interval of 18-20 h after GnRH administration. The transfer of two hatching cloned blastocytes per surrogate increases the pregnancy rate and decreases EPL in dromedary camels.
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Affiliation(s)
- Nabil Mansour
- Fujairah Research Centre (FRC), Al-Hilal Tower, 3003, P.O. Box 666, Fujairah, United Arab Emirates; Department of Theriogenology, Faculty of Veterinary Medicine, Kafrelsheikh University, Egypt.
| | - Fouad Lamghari
- Fujairah Research Centre (FRC), Al-Hilal Tower, 3003, P.O. Box 666, Fujairah, United Arab Emirates
| | - Mostafa Nasef
- Bulaida Farms, Al-Mayya Group, P.O. Box 666, Fujairah, United Arab Emirates
| | | | | | - Yeon Ik Jeong
- UAE Biotech Research Center, Abu Dhabi, 30310, United Arab Emirates
| | - Mina Kang
- UAE Biotech Research Center, Abu Dhabi, 30310, United Arab Emirates
| | - Huijeong Kim
- UAE Biotech Research Center, Abu Dhabi, 30310, United Arab Emirates
| | - Yura Bae
- UAE Biotech Research Center, Abu Dhabi, 30310, United Arab Emirates
| | - Bo Hyun Eum
- UAE Biotech Research Center, Abu Dhabi, 30310, United Arab Emirates
| | - Yeon Woo Jeong
- UAE Biotech Research Center, Abu Dhabi, 30310, United Arab Emirates; Department of Companion Animal and Animal Resources Science, Joongbu University, Geumsan-gun, 32713, Republic of Korea
| | - Woo Suk Hwang
- UAE Biotech Research Center, Abu Dhabi, 30310, United Arab Emirates; Department of Biology, North-Eastern Federal University, Yakutsk, 67707, Sakha Republic, Russia.
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Olsson PO, Jeong YW, Jeong Y, Kang M, Park GB, Choi E, Kim S, Hossein MS, Son YB, Hwang WS. Insights from one thousand cloned dogs. Sci Rep 2022; 12:11209. [PMID: 35778582 PMCID: PMC9249891 DOI: 10.1038/s41598-022-15097-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Accepted: 05/10/2022] [Indexed: 11/26/2022] Open
Abstract
Animal cloning has been popularized for more than two decades, since the birth of Dolly the Sheep 25 years ago in 1996. There has been an apparent waning of interest in cloning, evident by a reduced number of reports. Over 1500 dogs, representing approximately 20% of the American Kennel Club’s recognized breeds, have now been cloned, making the dog (Canis familiaris) one of the most successfully cloned mammals. Dogs have a unique relationship with humans, dating to prehistory, and a high degree of genome homology to humans. A number of phenotypic variations, rarely recorded in natural reproduction have been observed in in these more than 1000 clones. These observations differ between donors and their clones, and between clones from the same donor, indicating a non-genetic effect. These differences cannot be fully explained by current understandings but point to epigenetic and cellular reprograming effects of somatic cell nuclear transfer. Notably, some phenotypic variations have been reversed through further cloning. Here we summarize these observations and elaborate on the cloning procedure.
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Affiliation(s)
- P Olof Olsson
- UAE Biotech Research Center, Lane 2128 Al Wathba, Al Wathba South, Abu Dhabi, UAE
| | - Yeon Woo Jeong
- Department of Companion Animal and Animal Resources Science, Joongbu University, Geumsan-gun, 32713, Republic of Korea
| | - Yeonik Jeong
- UAE Biotech Research Center, Lane 2128 Al Wathba, Al Wathba South, Abu Dhabi, UAE
| | - Mina Kang
- UAE Biotech Research Center, Lane 2128 Al Wathba, Al Wathba South, Abu Dhabi, UAE
| | - Gang Bae Park
- UAE Biotech Research Center, Lane 2128 Al Wathba, Al Wathba South, Abu Dhabi, UAE
| | - Eunji Choi
- UAE Biotech Research Center, Lane 2128 Al Wathba, Al Wathba South, Abu Dhabi, UAE
| | - Sun Kim
- UAE Biotech Research Center, Lane 2128 Al Wathba, Al Wathba South, Abu Dhabi, UAE
| | | | - Young-Bum Son
- UAE Biotech Research Center, Lane 2128 Al Wathba, Al Wathba South, Abu Dhabi, UAE
| | - Woo Suk Hwang
- UAE Biotech Research Center, Lane 2128 Al Wathba, Al Wathba South, Abu Dhabi, UAE. .,North Eastern Federal University, Republic of Sakha, Yakutia, Russia.
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5
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Son YB, Jeong YI, Jeong YW, Hossein MS, Hwang WS. Impact of co-transfer of embryos produced by somatic cell nuclear transfer using two types of donor cells on pregnancy outcomes in dogs. Anim Biosci 2022; 35:1360-1366. [PMID: 35507850 PMCID: PMC9449398 DOI: 10.5713/ab.22.0043] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Accepted: 04/06/2022] [Indexed: 12/03/2022] Open
Abstract
Objective The present study analyzed the influence of co-transferring embryos with high and low cloning efficiencies produced via somatic cell nuclear transfer (SCNT) on pregnancy outcomes in dogs. Methods Cloned dogs were produced by SCNT using donor cells derived from a Tibetan Mastiff (TM) and Toy Poodle (TP). The in vivo developmental capacity of cloned embryos was evaluated. The pregnancy and parturition rates were determined following single transfer of 284 fused oocytes into 21 surrogates and co-transfer of 47 fused oocytes into four surrogates. Results When cloned embryos produced using a single type of donor cell were transferred into surrogates, the pregnancy and live birth rates were significantly higher following transfer of embryos produced using TP donor cells than following transfer of embryos produced using TM donor cells. Next, pregnancy and live birth rates were compared following single and co-transfer of these cloned embryos. The pregnancy and live birth rates were similar upon co-transfer of embryos and single transfer of embryos produced using TP donor cells but were significantly lower upon single transfer of embryos produced using TM donor cells. Furthermore, the parturition rate for TM dogs and the percentage of these dogs that remained alive until weaning was significantly higher upon co-transfer than upon single transfer of embryos. However, there was no difference between the two embryo transfer methods for TP dogs. The mean birth weight of cloned TM dogs was significantly higher upon single transfer than upon co-transfer of embryos. However, the body weight of TM dogs did not significantly differ between the two embryo transfer methods after day 5. Conclusion For cloned embryos with a lower developmental competence, the parturition rate and percentage of dogs that remain alive until weaning are increased when they are co-transferred with cloned embryos with a greater developmental competence.
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Son YB, Jeong YI, Jeong YW, Yu X, Olsson PO, Cai L, Choi EJ, Hossein MS, Tinson A, Singh KK, Rajesh S, Noura AS, Hwang WS. Comparison of pregnancy outcomes following the transfer of early-developmental stage embryos and blastocysts produced by somatic cell nuclear transfer in Camelus dromedarius. Anim Reprod Sci 2021; 233:106842. [PMID: 34530180 DOI: 10.1016/j.anireprosci.2021.106842] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Revised: 09/01/2021] [Accepted: 09/02/2021] [Indexed: 11/24/2022]
Abstract
The embryonic stage, site of embryo transfer in the reproductive tract of the surrogate, and embryo transfer method are important for the successful production of offspring. In the present study, there was comparison of pregnancy rates in camels following the surgical transfer of early-developmental stage embryos at Day 2 and transvaginal transfer of blastocysts at Day 7. Embryos were produced by somatic cell nuclear transfer using in vivo-matured oocytes and ear fibroblasts as donor cells. A total of 305 oocytes were collected from 27 donors, among which 275 oocytes were in metaphase II. In Group A, 110 oocytes were reconstructed, 78 fused oocytes were cultured for 2 days, and 37 early-developmental stage embryos were transferred into 13 surrogates. In Group B, 165 oocytes were utilized, 117 fused oocytes were cultured for 7 days, and 24 blastocysts were trans-vaginally transferred into 12 surrogates. Pregnancy was determined when there was an increase in serum progesterone concentrations and was confirmed using real-time ultrasonography. Microsatellite analysis was performed to confirm the parentage of offspring. Two live births occurred in Groups A and B (live birth rate of 15.4% and 16.7%, respectively). Results indicate both early-developmental stage embryos and blastocysts produced by somatic cell nuclear transfer using in vivo-matured oocytes can lead to live births in camel with similar efficiency. It, therefore, is recommended that trans-vaginal blastocyst transfer be utilized for camels considering the pregnancy and live birth rates, ease of the transfer procedure and comfort and safety of surrogates.
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Affiliation(s)
- Young-Bum Son
- UAE Biotech Research Center, P.O. Box 30310, Al Wathba South, Al Wathba, Abu Dhabi, United Arab Emirates
| | - Yeon Ik Jeong
- UAE Biotech Research Center, P.O. Box 30310, Al Wathba South, Al Wathba, Abu Dhabi, United Arab Emirates
| | - Yeon Woo Jeong
- UAE Biotech Research Center, P.O. Box 30310, Al Wathba South, Al Wathba, Abu Dhabi, United Arab Emirates
| | - Xianfeng Yu
- UAE Biotech Research Center, P.O. Box 30310, Al Wathba South, Al Wathba, Abu Dhabi, United Arab Emirates; Jilin Provincial Key Laboratory of Animal Model College of Animal Science, Jilin University, Changchun, China
| | - P Olof Olsson
- UAE Biotech Research Center, P.O. Box 30310, Al Wathba South, Al Wathba, Abu Dhabi, United Arab Emirates
| | - Lian Cai
- UAE Biotech Research Center, P.O. Box 30310, Al Wathba South, Al Wathba, Abu Dhabi, United Arab Emirates
| | - Eun Ji Choi
- UAE Biotech Research Center, P.O. Box 30310, Al Wathba South, Al Wathba, Abu Dhabi, United Arab Emirates
| | - Mohammad Shamim Hossein
- UAE Biotech Research Center, P.O. Box 30310, Al Wathba South, Al Wathba, Abu Dhabi, United Arab Emirates
| | - Alex Tinson
- Hilli E.T. Cloning and Surgical Centre, Presidential Camels and Camel Racing Affairs, 17292 Al-Cn, United Arab Emirates
| | - Kuhad Kuldip Singh
- Hilli E.T. Cloning and Surgical Centre, Presidential Camels and Camel Racing Affairs, 17292 Al-Cn, United Arab Emirates
| | - Singh Rajesh
- Hilli E.T. Cloning and Surgical Centre, Presidential Camels and Camel Racing Affairs, 17292 Al-Cn, United Arab Emirates
| | - Al Shamsi Noura
- Hilli E.T. Cloning and Surgical Centre, Presidential Camels and Camel Racing Affairs, 17292 Al-Cn, United Arab Emirates
| | - Woo Suk Hwang
- UAE Biotech Research Center, P.O. Box 30310, Al Wathba South, Al Wathba, Abu Dhabi, United Arab Emirates.
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Son YB, Jeong YI, Hossein MS, Olsson PO, Kim G, Jeong YW, Hwang WS. Comparative evaluation of three different formulas for predicting the parturition date of German Shepherds following somatic cell nuclear transfer. J Vet Med Sci 2021; 83:1448-1453. [PMID: 34373372 PMCID: PMC8498844 DOI: 10.1292/jvms.21-0154] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Several studies have reported methods to estimate the parturition date of dogs using ultrasonographic measurements. However, these prediction models were mainly determined using
ultrasonographic measurements of naturally pregnant small- and medium-sized dogs, and no such studies have been performed using dogs carrying cloned fetuses produced via somatic cell nuclear
transfer. The present study evaluated the abilities of three reference formulas (Luvoni and Grioni, Milani et al., and Groppetti et al.), all of which were
developed using data from naturally occurring pregnancies, to accurately predict the parturition date in surrogates carrying cloned German Shepherd (GS) fetuses. All three formulas were
based on the use of inner chorionic cavity diameter (ICC) measurements, obtained via ultrasonography. For evaluation, a total of 54 ICC measurements were collected from 14 pregnant bitches
carrying cloned GS fetuses. We found that the clinical accuracy of the breed-specific Groppetti et al. formula was highest among those of the three formulas tested, with 87%
and 100% of the estimated parturition dates (calculated based on the ICC measurements) being within 1 and 2 days, respectively, of the actual delivery date. By contrast, the Luvoni and
Grioni formula showed relatively low accuracy, and the Milani et al. formula showed higher accuracy than that reported previously for natural pregnancies.
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Affiliation(s)
| | | | | | | | - Gyeongmin Kim
- Department of Biological Sciences of Companion Animals and Plants, Kyungsung University
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Son YB, Jeong YI, Jeong YW, Hossein MS, Olsson PO, Tinson A, Singh KK, Lee SY, Hwang WS. Cell Source-Dependent In Vitro Chondrogenic Differentiation Potential of Mesenchymal Stem Cell Established from Bone Marrow and Synovial Fluid of Camelus dromedarius. Animals (Basel) 2021; 11:ani11071918. [PMID: 34203207 PMCID: PMC8300404 DOI: 10.3390/ani11071918] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2021] [Revised: 06/17/2021] [Accepted: 06/21/2021] [Indexed: 01/15/2023] Open
Abstract
Simple Summary This is the first study to demonstrate the establishment and subsequent analysis of attributes, including the chondrogenic capacity of mesenchymal stem cells (MSCs) from bone marrow (BM) and synovial fluid (SF) from the same donor Camelus dromedarius. MSCs of SF origin were notably more efficient in their chondrogenic capacity and represent a potential source for camel regenerative medicine addressing chondrocyte-related problems. Abstract Mesenchymal stem cells (MSCs) are promising multipotent cells with applications for cartilage tissue regeneration in stem cell-based therapies. In cartilage regeneration, both bone marrow (BM-MSCs) and synovial fluid (SF-MSCs) are valuable sources. However, the cellular characteristics and chondrocyte differentiation potential were not reported in either of the camel stem cells. The in vitro chondrocyte differentiation competence of MSCs, from (BM and SF) sources of the same Camelus dromedaries (camel) donor, was determined. Both MSCs were evaluated on pluripotent markers and proliferation capacity. After passage three, both MSCs showed fibroblast-like morphology. The proliferation capacity was significantly increased in SF-MSCs compared to BM-MSCs. Furthermore, SF-MSCs showed an enhanced expression of transcription factors than BM-MSCs. SF-MSCs exhibited lower differentiation potential toward adipocytes than BM-MSCs. However, the osteoblast differentiation potential was similar in MSCs from both sources. Chondrogenic pellets obtained from SF-MSCs revealed higher levels of chondrocyte-specific markers than those from BM-MSCs. Additionally, glycosaminoglycan (GAG) content was elevated in SF-MSCs related to BM-MSCs. This is, to our knowledge, the first study to establish BM-MSCs and SF-MSCs from the same donor and to demonstrate in vitro differentiation potential into chondrocytes in camels.
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Affiliation(s)
- Young-Bum Son
- UAE Biotech Research Center, Abu Dhabi 30310, United Arab Emirates; (Y.-B.S.); (Y.I.J.); (Y.W.J.); (M.S.H.); (P.O.O.)
| | - Yeon Ik Jeong
- UAE Biotech Research Center, Abu Dhabi 30310, United Arab Emirates; (Y.-B.S.); (Y.I.J.); (Y.W.J.); (M.S.H.); (P.O.O.)
| | - Yeon Woo Jeong
- UAE Biotech Research Center, Abu Dhabi 30310, United Arab Emirates; (Y.-B.S.); (Y.I.J.); (Y.W.J.); (M.S.H.); (P.O.O.)
| | - Mohammad Shamim Hossein
- UAE Biotech Research Center, Abu Dhabi 30310, United Arab Emirates; (Y.-B.S.); (Y.I.J.); (Y.W.J.); (M.S.H.); (P.O.O.)
| | - Per Olof Olsson
- UAE Biotech Research Center, Abu Dhabi 30310, United Arab Emirates; (Y.-B.S.); (Y.I.J.); (Y.W.J.); (M.S.H.); (P.O.O.)
| | - Alex Tinson
- Hilli E.T. Cloning and Surgical Centre Presidential Camels and Camel Racing Affairs, Al-Ain 17292, United Arab Emirates; (A.T.); (K.K.S.)
| | - Kuhad Kuldip Singh
- Hilli E.T. Cloning and Surgical Centre Presidential Camels and Camel Racing Affairs, Al-Ain 17292, United Arab Emirates; (A.T.); (K.K.S.)
| | - Sang-Yun Lee
- Department of Theriogenology and Biotechnology, College of Veterinary Medicine and Research Institute of Life Science, Gyeongsang National University, Jinju 52828, Korea;
| | - Woo Suk Hwang
- UAE Biotech Research Center, Abu Dhabi 30310, United Arab Emirates; (Y.-B.S.); (Y.I.J.); (Y.W.J.); (M.S.H.); (P.O.O.)
- Correspondence:
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Son YB, Jeong YI, Jeong YW, Olsson PO, Hossein MS, Cai L, Kim S, Choi EJ, Sakaguchi K, Tinson A, Singh KK, Rajesh S, Noura AS, Hwang WS. Development and pregnancy rates of Camelus dromedarius-cloned embryos derived from in vivo- and in vitro-matured oocytes. Anim Biosci 2021; 35:177-183. [PMID: 34289583 PMCID: PMC8738946 DOI: 10.5713/ab.21.0131] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Accepted: 05/28/2021] [Indexed: 11/27/2022] Open
Abstract
Objective The present study evaluated the efficiency of embryo development and pregnancy of somatic cell nuclear transfer (SCNT) embryos using different source-matured oocytes in Camelus dromedarius. Methods Camelus dromedarius embryos were produced by SCNT using in vivo- and in vitro- matured oocytes. In vitro embryo developmental capacity of reconstructed embryos was evaluated. To confirm the efficiency of pregnancy and live birth rates, a total of 72 blastocysts using in vitro- matured oocytes transferred into 45 surrogates and 95 blastocysts using in vivo- matured oocytes were transferred into 62 surrogates by transvaginal method. Results The collected oocytes derived from ovum pick up showed higher maturation potential into metaphase II oocytes than oocytes from the slaughterhouse. The competence of cleavage, and blastocyst were also significantly higher in in vivo- matured oocytes than in vitro- matured oocytes. After embryo transfer, 11 pregnant and 10 live births were confirmed in in vivo- matured oocytes group, and 2 pregnant and 1 live birth were confirmed in in vitro- matured oocytes group. Furthermore, blastocysts produced by in vivo-matured oocytes resulted in significantly higher early pregnancy and live birth rates than in vitro-matured oocytes. Conclusion In this study, SCNT embryos using in vivo- and in vitro-matured camel oocytes were successfully developed, and pregnancy was established in recipient camels. We also confirmed that in vivo-matured oocytes improved the development of embryos and the pregnancy capacity using the blastocyst embryo transfer method.
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Affiliation(s)
- Young-Bum Son
- UAE Biotech Research Center, 30310 Al Wathba, Abu Dhabi, United Arab Emirates
| | - Yeon Ik Jeong
- UAE Biotech Research Center, 30310 Al Wathba, Abu Dhabi, United Arab Emirates
| | - Yeon Woo Jeong
- UAE Biotech Research Center, 30310 Al Wathba, Abu Dhabi, United Arab Emirates
| | - Per Olof Olsson
- UAE Biotech Research Center, 30310 Al Wathba, Abu Dhabi, United Arab Emirates
| | | | - Lian Cai
- UAE Biotech Research Center, 30310 Al Wathba, Abu Dhabi, United Arab Emirates
| | - Sun Kim
- UAE Biotech Research Center, 30310 Al Wathba, Abu Dhabi, United Arab Emirates
| | - Eun Ji Choi
- UAE Biotech Research Center, 30310 Al Wathba, Abu Dhabi, United Arab Emirates
| | - Kenichiro Sakaguchi
- UAE Biotech Research Center, 30310 Al Wathba, Abu Dhabi, United Arab Emirates
| | - Alex Tinson
- Hilli E.T. Cloning and Surgical Centre Presidential Camels and Camel Racing Affairs, 17292 Al-Ain, United Arab Emirates
| | - Kuhad Kuldip Singh
- Hilli E.T. Cloning and Surgical Centre Presidential Camels and Camel Racing Affairs, 17292 Al-Ain, United Arab Emirates
| | - Singh Rajesh
- Hilli E.T. Cloning and Surgical Centre Presidential Camels and Camel Racing Affairs, 17292 Al-Ain, United Arab Emirates
| | - Al Shamsi Noura
- Hilli E.T. Cloning and Surgical Centre Presidential Camels and Camel Racing Affairs, 17292 Al-Ain, United Arab Emirates
| | - Woo Suk Hwang
- UAE Biotech Research Center, 30310 Al Wathba, Abu Dhabi, United Arab Emirates
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10
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Son YB, Jeong YI, Jeong YW, Yu X, Cai L, Choi EJ, Hossein MS, Tinson A, Singh KK, Rajesh S, Noura AS, Hwang WS. Vitrification of camel skin tissue for use as a resource for somatic cell nuclear transfer in Camelus dromedarius. In Vitro Cell Dev Biol Anim 2021; 57:487-492. [PMID: 34014457 PMCID: PMC8205866 DOI: 10.1007/s11626-021-00590-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Accepted: 05/02/2021] [Indexed: 10/27/2022]
Affiliation(s)
- Young-Bum Son
- UAE Biotech Research Center, 30310 Al Wathba, Abu Dhabi, United Arab Emirates
| | - Yeon Ik Jeong
- UAE Biotech Research Center, 30310 Al Wathba, Abu Dhabi, United Arab Emirates
| | - Yeon Woo Jeong
- UAE Biotech Research Center, 30310 Al Wathba, Abu Dhabi, United Arab Emirates
| | - Xianfeng Yu
- Jilin Provincial Key Laboratory of Animal Model, College of Animal Science, Jilin University, Changchun, China
| | - Lian Cai
- UAE Biotech Research Center, 30310 Al Wathba, Abu Dhabi, United Arab Emirates
| | - Eun Ji Choi
- UAE Biotech Research Center, 30310 Al Wathba, Abu Dhabi, United Arab Emirates
| | | | - Alex Tinson
- Hilli E.T. Cloning and Surgical Centre Presidential Camels and Camel Racing Affairs, 17292, Al-Ain, United Arab Emirates
| | - Kuhad Kuldip Singh
- Hilli E.T. Cloning and Surgical Centre Presidential Camels and Camel Racing Affairs, 17292, Al-Ain, United Arab Emirates
| | - Singh Rajesh
- Hilli E.T. Cloning and Surgical Centre Presidential Camels and Camel Racing Affairs, 17292, Al-Ain, United Arab Emirates
| | - Al Shamsi Noura
- Hilli E.T. Cloning and Surgical Centre Presidential Camels and Camel Racing Affairs, 17292, Al-Ain, United Arab Emirates
| | - Woo Suk Hwang
- UAE Biotech Research Center, 30310 Al Wathba, Abu Dhabi, United Arab Emirates.
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11
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Hwang KC, Choi YK, Jeong YI, Park KB, Choi EJ, Jeong YW, Hossein MS, Hyun SH, Jeung EB, Hwang WS. Demetylation of the sex-determining region Y gene promoter and incidence of disorder of sex development in cloned dog males. J Physiol Pharmacol 2020; 71. [PMID: 32991314 DOI: 10.26402/jpp.2020.3.05] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Accepted: 06/10/2020] [Indexed: 11/03/2022]
Abstract
Canine cloning is occasionally accompanied by abnormal sexual development. Some male donor cells produce cloned pups with female external genitalia and complete male gonadal dysgenesis, which is classified as an XY disorder of sex development (XY DSD). In this study, we examine the potential of 5-aza-2'-deoxycytidine (5-aza-dC), a DNA methyltransferase inhibitor, to reduce the phenotypic abnormality XY DSD in somatic cell nuclear transfer (SCNT)- derived pups. We used a 9-year-old normal male German Shepherd dog as a cell donor. Donor cells were treated with 10 nM 5-aza-dC for 4 days before being used for SCNT. At the same stage of cell development, significantly lower levels of DNA methylation of the sex-determining region Y (SRY) promoter was observed in the treated donor cells compared to that in the untreated cells (95.2% versus 53.3% on day 4 for the control and treated groups, respectively). No significant differences were observed in the control or treatment groups concerning fusion rate, pregnancy rate (30 days or entire period), the number of pups, or the incidence of XY DSD. However, more XY DSD dogs were observed in the control group (31.25%) than in the treatment group (14.29%). Hypermethylation of the SRY promoter was observed in the XY DSD cloned pups in both the treatment (84.8%) and control groups (91.1 ± 1.4%) compared to the methylation level in the phenotypically normal male pups of the treatment (23.2 ± 20.9%) and control groups (39.1 ± 20.1%). These results suggest that 5-aza-dC treatment of donor cells can reduce the methylation level of the SRY promoter in donor cells, and thus, 5-aza-dC is advantageous for reducing the incidence of XY DSD in canine cloning.
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Affiliation(s)
- K C Hwang
- Abu Dhabi Biotech Research Foundation, Kyungin-ro, Guro-gu, Seoul, Republic of Korea
| | - Y K Choi
- Abu Dhabi Biotech Research Foundation, Kyungin-ro, Guro-gu, Seoul, Republic of Korea
| | - Y I Jeong
- Abu Dhabi Biotech Research Foundation, Kyungin-ro, Guro-gu, Seoul, Republic of Korea
| | - K B Park
- Abu Dhabi Biotech Research Foundation, Kyungin-ro, Guro-gu, Seoul, Republic of Korea
| | - E J Choi
- Abu Dhabi Biotech Research Foundation, Kyungin-ro, Guro-gu, Seoul, Republic of Korea
| | - Y W Jeong
- Abu Dhabi Biotech Research Foundation, Kyungin-ro, Guro-gu, Seoul, Republic of Korea
| | - M S Hossein
- Abu Dhabi Biotech Research Foundation, Kyungin-ro, Guro-gu, Seoul, Republic of Korea
| | - S H Hyun
- Abu Dhabi Biotech Research Foundation, Kyungin-ro, Guro-gu, Seoul, Republic of Korea.,Laboratory of Veterinary Embryology and Biotechnology, College of Veterinary Medicine, Chungbuk National University, Cheongju, Chungbuk, Republic of Korea
| | - E-B Jeung
- Laboratory of Veterinary Biochemistry and Molecular Biology, College of Veterinary Medicine, Chungbuk National University, Cheongju, Chungbuk, Republic of Korea
| | - W S Hwang
- Abu Dhabi Biotech Research Foundation, Kyungin-ro, Guro-gu, Seoul, Republic of Korea.
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12
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Eun K, Hong N, Jeong YW, Park MG, Hwang SU, Jeong YIK, Choi EJ, Olsson PO, Hwang WS, Hyun SH, Kim H. Transcriptional activities of human elongation factor-1α and cytomegalovirus promoter in transgenic dogs generated by somatic cell nuclear transfer. PLoS One 2020; 15:e0233784. [PMID: 32492024 PMCID: PMC7269240 DOI: 10.1371/journal.pone.0233784] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Accepted: 05/12/2020] [Indexed: 11/30/2022] Open
Abstract
Recent advances in somatic cell nuclear transfer (SCNT) in canines facilitate the production of canine transgenic models. Owing to the importance of stable and strong promoter activity in transgenic animals, we tested human elongation factor 1α (hEF1α) and cytomegalovirus (CMV) promoter sequences in SCNT transgenic dogs. After transfection, transgenic donor fibroblasts with the hEF1α-enhanced green fluorescence protein (EGFP) transgene were successfully isolated using fluorescence-activated cell sorting (FACS). We obtained four puppies, after SCNT, and identified three puppies as being transgenic using PCR analysis. Unexpectedly, EGFP regulated by hEF1α promoter was not observed at the organismal and cellular levels in these transgenic dogs. EGFP expression was rescued by the inhibition of DNA methyltransferases, implying that the hEF1α promoter is silenced by DNA methylation. Next, donor cells with CMV-EGFP transgene were successfully established and SCNT was performed. Three puppies of six born puppies were confirmed to be transgenic. Unlike hEF1α-regulated EGFP, CMV-regulated EGFP was strongly detectable at both the organismal and cellular levels in all transgenic dogs, even after 19 months. In conclusion, our study suggests that the CMV promoter is more suitable, than the hEF1α promoter, for stable transgene expression in SCNT-derived transgenic canine model.
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Affiliation(s)
- Kiyoung Eun
- Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seongbuk-gu, Seoul, Republic of Korea
- Institute of Animal Molecular Biotechnology, Korea University, Seongbuk-gu, Seoul, Republic of Korea
| | - Nayoung Hong
- Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seongbuk-gu, Seoul, Republic of Korea
- Institute of Animal Molecular Biotechnology, Korea University, Seongbuk-gu, Seoul, Republic of Korea
| | - Yeon Woo Jeong
- Sooam Biotech Research Foundation, Guro-gu, Seoul, Republic of Korea
| | - Min Gi Park
- Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seongbuk-gu, Seoul, Republic of Korea
- Institute of Animal Molecular Biotechnology, Korea University, Seongbuk-gu, Seoul, Republic of Korea
| | - Seon-Ung Hwang
- Laboratory of Veterinary Embryology and Biotechnology, College of Veterinary Medicine, Chungbuk National University, Seowon-gu, Cheongju, Republic of Korea
- Institute of Stem Cell & Regenerative Medicine, Chungbuk National University, Seowon-gu, Cheongju, Republic of Korea
| | - Yeon I. K. Jeong
- Sooam Biotech Research Foundation, Guro-gu, Seoul, Republic of Korea
| | - Eun Ji Choi
- Sooam Biotech Research Foundation, Guro-gu, Seoul, Republic of Korea
| | - P. Olof Olsson
- Sooam Biotech Research Foundation, Guro-gu, Seoul, Republic of Korea
| | - Woo Suk Hwang
- Sooam Biotech Research Foundation, Guro-gu, Seoul, Republic of Korea
| | - Sang-Hwan Hyun
- Laboratory of Veterinary Embryology and Biotechnology, College of Veterinary Medicine, Chungbuk National University, Seowon-gu, Cheongju, Republic of Korea
- Institute of Stem Cell & Regenerative Medicine, Chungbuk National University, Seowon-gu, Cheongju, Republic of Korea
- * E-mail: (SHH); (HK)
| | - Hyunggee Kim
- Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seongbuk-gu, Seoul, Republic of Korea
- Institute of Animal Molecular Biotechnology, Korea University, Seongbuk-gu, Seoul, Republic of Korea
- * E-mail: (SHH); (HK)
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13
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Jeong Y, Olson OP, Lian C, Lee ES, Jeong YW, Hwang WS. Dog cloning from post-mortem tissue frozen without cryoprotectant. Cryobiology 2020; 97:226-230. [PMID: 32268132 DOI: 10.1016/j.cryobiol.2020.03.013] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Revised: 03/05/2020] [Accepted: 03/29/2020] [Indexed: 11/28/2022]
Abstract
Successful reproductive cloning depends on obtaining intact donor nuclei from viable cells, ideally isolated by tissue biopsy of a living donor. However, owners and veterinarians often freeze deceased animals, which eventually causes damage to cellular micro-organelles due to the formation of intracellular water crystals. In the present study, we have reported the production of viable cloned puppies using donor nuclei of cells obtained from frozen carcasses. Five cases of deceased and frozen canine specimens were presented to be cloned. Skin fibroblast cell lines were successfully established for four specimens. Significant longer time was needed for the cell growth from frozen tissues (4 days) to reach 80% confluency compared to fresh tissue and frozen tissues frozen for 1- or 2-days. Similarly, SA-βgal positive cells (death cells) were significantly higher in frozen cells for 2- or 4- days compared to samples from fresh or frozen (1 day) sources. The cloning efficiency (CE) and the pregnancy rates (PR) of frozen cells were lower than those obtained from fresh or living donors (CE 2.4 ± 1.8% vs. 0.6 ± 0.3%, PR 21.7 ± 16.1% vs. 7.7 ± 5.3% for fresh vs. frozen, respectively). Here we demonstrate is the possibility to produce healthy offspring from cell lines obtained from frozen tissue collected post-mortem.
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Affiliation(s)
- Yeonik Jeong
- Sooam Biotech Research Foundation, 64 Kyunginro, Guro-gu, Seoul, 08359, Republic of Korea; Laboratory of Theriogenology, College of Veterinary Medicine, Kangwon National University, Chuncheon, 24341, Republic of Korea
| | - Olof P Olson
- Sooam Biotech Research Foundation, 64 Kyunginro, Guro-gu, Seoul, 08359, Republic of Korea
| | - Cai Lian
- Sooam Biotech Research Foundation, 64 Kyunginro, Guro-gu, Seoul, 08359, Republic of Korea
| | - Eun Song Lee
- Laboratory of Theriogenology, College of Veterinary Medicine, Kangwon National University, Chuncheon, 24341, Republic of Korea
| | - Yeon Woo Jeong
- Sooam Biotech Research Foundation, 64 Kyunginro, Guro-gu, Seoul, 08359, Republic of Korea.
| | - Woo Suk Hwang
- Sooam Biotech Research Foundation, 64 Kyunginro, Guro-gu, Seoul, 08359, Republic of Korea
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14
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Park KM, Wang JW, Yoo YM, Choi MJ, Hwang KC, Jeung EB, Jeong YW, Hwang WS. Sphingosine-1-phosphate (S1P) analog phytosphingosine-1-phosphate (P1P) improves the in vitro maturation efficiency of porcine oocytes via regulation of oxidative stress and apoptosis. Mol Reprod Dev 2019; 86:1705-1719. [PMID: 31490595 DOI: 10.1002/mrd.23264] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Accepted: 08/03/2019] [Indexed: 12/11/2022]
Abstract
Phytosphingosine-1-phosphate (P1P) is a signaling sphingolipid that regulates various physiological activities. However, little is known about the effect of P1P in the context of reproduction. Thus, we aimed to investigate the influence of P1P on oocyte maturation during porcine in vitro maturation (IVM). Here, we report the expression of S1PR1-3 among P1P receptors (S1PR1-4) in cumulus cells and oocytes. When P1P was administered at concentrations of 10, 50, 100, and 1,000 nM during IVM, the metaphase II rate was significantly increased in the 1,000 nM (1 μM) P1P treatment group. Maturation rate improvement by P1P supplementation was observed only in the presence of epidermal growth factor (EGF). Oocytes under the influence of P1P showed decreased intracellular reactive oxygen species levels but no significant differences in glutathione levels. In our molecular studies, P1P treatment upregulated gene expression involved in cumulus expansion (Has2 and EGF), antioxidant enzymes (SOD3 and Cat), and developmental competence (Oct4) while activating extracellular signal-regulated kinase1/2 and Akt signaling. P1P treatment also influenced oocyte survival by shifting the ratio of Bcl-2 to Bax while inactivating JNK signaling. We further demonstrated that oocytes matured with P1P displayed significantly higher developmental competence (cleavage and blastocyst [BL] formation rate) and greater BL quality (total cell number and the ratio of apoptotic cells) when activated via parthenogenetic activation (PA) and in vitro fertilization. Despite the low levels of endogenous P1P found in animals, exogenous P1P influenced animal reproduction, as shown by increased porcine oocyte maturation as well as preimplantation embryo development. This study and its findings are potentially relevant for both human and animal-assisted reproduction.
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Affiliation(s)
- Kyu-Mi Park
- Sooam Biotech Research Foundation, Guro-gu, Seoul, Republic of Korea
| | - Jae Woong Wang
- Sooam Biotech Research Foundation, Guro-gu, Seoul, Republic of Korea
| | - Yeong-Min Yoo
- Laboratory of Biochemistry and Molecular Biology, College of Veterinary Medicine, Chungbuk National University, Cheongju, Chungbuk, Republic of Korea
| | | | - Kyu Chan Hwang
- Sooam Biotech Research Foundation, Guro-gu, Seoul, Republic of Korea
| | - Eui-Bae Jeung
- Laboratory of Biochemistry and Molecular Biology, College of Veterinary Medicine, Chungbuk National University, Cheongju, Chungbuk, Republic of Korea
| | - Yeon Woo Jeong
- Sooam Biotech Research Foundation, Guro-gu, Seoul, Republic of Korea
| | - Woo Suk Hwang
- Sooam Biotech Research Foundation, Guro-gu, Seoul, Republic of Korea
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15
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Van Nguyen Q, Choi YS, Choi SK, Jeong YW, Kwon YS. Improvement of bio-crude oil properties via co-pyrolysis of pine sawdust and waste polystyrene foam. J Environ Manage 2019; 237:24-29. [PMID: 30780052 DOI: 10.1016/j.jenvman.2019.02.039] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2018] [Revised: 12/07/2018] [Accepted: 02/07/2019] [Indexed: 06/09/2023]
Abstract
Conversion technology of solid biomass to liquid fuel, named bio-crude oil, has been researched widely for the production of renewable energy to replace fossil fuel oil. As the result of many admirable researches, fast pyrolysis technology for bio-crude oil production is close to commercialization. However, bio-crude oil has unsatisfactory properties compared to general petroleum oil, for instance, low heating value, high water content, and high viscosity. In this study, pine sawdust (SD) biomass was co-pyrolyzed with waste polystyrene foam (WPSF), which was expected to improve the bio-crude oil quality due to high heating value and non-oxygen composition of polystyrene. The co-pyrolysis experiment was conducted in a bubbling fluidized bed reactor under the following conditions: temperature of 500 °C which was chosen based on the results from thermogravimetric analysis of SD and WPSF, nitrogen flow rate of 20-25 L/min., and feeding rate of 200 g/hr. Various mixing ratios of SD/WPSF by weight percentage were tested as follows: 100/0, 95/5, 90/10, 85/15, 80/20, 75/25, 70/30, 60/40, 50/50, 25/75, 0/100. Experimental results showed that in case of only SD feeding the bio-crude oil yield and higher heating value (HHV) were 48.83 wt% and 17.81 MJ/kg respectively. By contrast, oil yield and HHV in case of 25% SD with 75% WPSF mixture were 63.31 wt% and 39.65 MJ/kg respectively. Additional analysis showed that water content, and acetic acid concentration of bio-crude oil from co-pyrolysis of SD/WPSF mixture were decreased almost proportionally with the increasing WPSF ratio. Furthermore, measured values of water content, and acetic acid concentration were lower than the calculated values by linear interpolation, which means that the synergistic effect between SD and WPSF was achieved during the co-pyrolysis. In conclusion, co-pyrolysis of SD and WPSF was found as a promising solution to improve bio-crude oil quality. With this technology, the industrial growth of bio-crude oil area is expected as well as waste plastic.
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Affiliation(s)
- Quynh Van Nguyen
- Department of Environmental and Energy Mechanical Engineering, University of Science and Technology, Daejeon, 34113, South Korea
| | - Yeon Seok Choi
- Department of Environmental and Energy Mechanical Engineering, University of Science and Technology, Daejeon, 34113, South Korea; Department of Clean Fuel & Power Generation, Korea Institute of Machinery and Materials, Daejeon, 34103, South Korea.
| | - Sang Kyu Choi
- Department of Environmental and Energy Mechanical Engineering, University of Science and Technology, Daejeon, 34113, South Korea; Department of Clean Fuel & Power Generation, Korea Institute of Machinery and Materials, Daejeon, 34103, South Korea
| | - Yeon Woo Jeong
- Department of Clean Fuel & Power Generation, Korea Institute of Machinery and Materials, Daejeon, 34103, South Korea
| | - Yong Su Kwon
- Department of Environmental and Energy Mechanical Engineering, University of Science and Technology, Daejeon, 34113, South Korea
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16
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Kim JJ, Park KB, Choi EJ, Hyun SH, Kim NH, Jeong YW, Hwang WS. Corrigendum to "Relationship between time post-ovulation and progesterone on oocyte maturation and pregnancy in canine cloning" [Anim. Reprod. Sci. 185 (2017) 75-82]. Anim Reprod Sci 2017; 187:203. [PMID: 29126832 DOI: 10.1016/j.anireprosci.2017.10.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Affiliation(s)
- Joung Joo Kim
- Sooam Biotech Research Foundation, 64 Kyungin-ro, Guro-gu, Seoul, Republic of Korea
| | - Kang Bae Park
- Sooam Biotech Research Foundation, 64 Kyungin-ro, Guro-gu, Seoul, Republic of Korea
| | - Eun Ji Choi
- Sooam Biotech Research Foundation, 64 Kyungin-ro, Guro-gu, Seoul, Republic of Korea
| | - Sang Hwan Hyun
- Sooam Biotech Research Foundation, 64 Kyungin-ro, Guro-gu, Seoul, Republic of Korea; Laboratory of Veterinary Embryology and Biotechnology, College of Veterinary Medicine, Chungbuk National University, Cheongju, Republic of Korea
| | - Nam-Hyung Kim
- Department of Animal Sciences, Chungbuk National University, Cheongju, Republic of Korea
| | - Yeon Woo Jeong
- Sooam Biotech Research Foundation, 64 Kyungin-ro, Guro-gu, Seoul, Republic of Korea.
| | - Woo Suk Hwang
- Sooam Biotech Research Foundation, 64 Kyungin-ro, Guro-gu, Seoul, Republic of Korea
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17
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Eun K, Hwang SU, Jeong YW, Seo S, Lee SY, Hwang WS, Hyun SH, Kim H. SV40 Large T Antigen Disrupts Embryogenesis of Canine and Porcine Somatic Cell Nuclear Transfer Embryo. Biol Proced Online 2017; 19:13. [PMID: 29075153 PMCID: PMC5648454 DOI: 10.1186/s12575-017-0061-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2017] [Accepted: 09/01/2017] [Indexed: 01/17/2023] Open
Abstract
Background Somatic cell nuclear transfer (SCNT) is a useful biotechnological tool for transgenic animal production using genetically modified somatic cells (GMSCs). However, there are several limitations preventing successful transgenic animal generation by SCNT, such as obtaining proper somatic donor cells with a sufficiently long life span and proliferative capacity for generating GMSCs. Here, we established simian virus 40 large T antigen (SV40LT)-mediated lifespan-extended canine fibroblast cells (SV40LT-K9 cells) and evaluated their potential as nuclei donors for SCNT, based on cellular integrity and SCNT embryo development. Results SV40LT did not cause canine cell transformation, based on cell morphology and proliferation rate. No anchorage-independent growth in vitro and tumorigenicity in vivo were observed. After SCNT with SV40LT-K9 cells, embryos were transferred into surrogate dogs. All dogs failed to become pregnant. Most embryos did not proceed past the 8-cell stage and only one surrogate showed an implantation trace in its oviduct, indicating that the cells rarely developed into blastocysts. Because of the absence of an in vitro maturation method for canine embryos, we performed identical experiments using porcine fibroblast cells. Similarly, SV40LT did not transform porcine fibroblast cells (SV40LT-Pig cells). During in vitro development of SV40LT-Pig cell-driven SCNT embryos, their blastocyst formation rate was clearly lower than those of normal cells. Karyotyping analysis revealed that both SV40LT-K9 and SV40LT-Pig cells had aberrant chromosomal statuses. Conclusions Although lifespan-extended canine and porcine cells via SV40LT exhibit no apparent transforming changes, they are inappropriate for use as nuclei donors for SCNT because of their aneuploidy.
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Affiliation(s)
- Kiyoung Eun
- Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul, 02841 Republic of Korea
| | - Seon-Ung Hwang
- Laboratory of Veterinary Embryology and Biotechnology, College of Veterinary Medicine, Institute of Stem Cell & Regenerative Medicine, Chungbuk National University, 52 Naesudong-ro, Seowon-gu, Cheongju, 28644 Republic of Korea
| | - Yeon Woo Jeong
- Sooam Biotech Research Foundation, San 43-41 Oryu-dong, Guro-gu, Seoul, Republic of Korea
| | - Sunyoung Seo
- Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul, 02841 Republic of Korea
| | - Seon Yong Lee
- Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul, 02841 Republic of Korea
| | - Woo Suk Hwang
- Sooam Biotech Research Foundation, San 43-41 Oryu-dong, Guro-gu, Seoul, Republic of Korea
| | - Sang-Hwan Hyun
- Laboratory of Veterinary Embryology and Biotechnology, College of Veterinary Medicine, Institute of Stem Cell & Regenerative Medicine, Chungbuk National University, 52 Naesudong-ro, Seowon-gu, Cheongju, 28644 Republic of Korea
| | - Hyunggee Kim
- Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul, 02841 Republic of Korea.,Department of Medical Engineering, College of Medicine, Korea University, Seoul, Republic of Korea
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18
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Kim JJ, Park KB, Choi EJ, Hyun SH, Kim NH, Jeong YW, Hwang WS. Relationship between time post-ovulation and progesterone on oocyte maturation and pregnancy in canine cloning. Anim Reprod Sci 2017; 185:75-82. [PMID: 28843841 DOI: 10.1016/j.anireprosci.2017.08.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2017] [Revised: 08/07/2017] [Accepted: 08/09/2017] [Indexed: 11/24/2022]
Abstract
Canine oocytes ovulated at prophase complete meiosis and continue to develop in presence of a high progesterone concentration in the oviduct. Considering that meiotic competence of canine oocyte is accomplished in the oviductal environment, we postulate that hormonal milieu resulting from the circulating progesterone concentration may affect oocyte maturation and early development of embryos. From 237 oocyte donors, 2620 oocytes were collected and their meiotic status and morphology were determined. To determine optimal characteristics of the mature oocytes subjected to nuclear transfer, a proportion of the meiotic status of the oocytes were classified in reference to time post-ovulation as well as progesterone (P4) level. A high proportion of matured oocytes were collected from >126h (55.5%) post-ovulation or 40-50ngmL-1 (46.4%) group compared to the other groups. Of the oocyte donors that provided mature oocytes in vivo, there was no correlation between serum progesterone of donors and time post ovulation, however, time post-ovulation were significantly shorter for <30ng/mL group (P<0.05). Using mature oocytes, 1161 cloned embryos were reconstructed and transferred into 77 surrogates. In order to determine the relationship between pregnancy performance and serum progesterone level, embryos were transferred into surrogates showing various P4 serum levels. The highest pregnancy (31.8%) and live birth cloning efficacy (2.2%) rates were observed when the embryos were transferred into surrogates with circulating P4 levels were from 40 to 50ngmL-1. In conclusion, measurement of circulating progesterone of female dog could be a suitable an indicator of the optimal time to collect quality oocyte and to select surrogates for cloning.
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Affiliation(s)
- Joung Joo Kim
- Sooam Biotech Research Foundation, 64 Kyungin-ro, Guro-gu, Seoul, Republic of Korea
| | - Kang Bae Park
- Sooam Biotech Research Foundation, 64 Kyungin-ro, Guro-gu, Seoul, Republic of Korea
| | - Eun Ji Choi
- Sooam Biotech Research Foundation, 64 Kyungin-ro, Guro-gu, Seoul, Republic of Korea
| | - Sang Hwan Hyun
- Sooam Biotech Research Foundation, 64 Kyungin-ro, Guro-gu, Seoul, Republic of Korea; Laboratory of Veterinary Embryology and Biotechnology, College of Veterinary Medicine, Chungbuk National University, Cheongju, Republic of Korea
| | - Nam-Hyung Kim
- Department of Animal Sciences, Chungbuk National University, Cheongju, Republic of Korea
| | - Yeon Woo Jeong
- Sooam Biotech Research Foundation, 64 Kyungin-ro, Guro-gu, Seoul, Republic of Korea.
| | - Woo Suk Hwang
- Sooam Biotech Research Foundation, 64 Kyungin-ro, Guro-gu, Seoul, Republic of Korea
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Lee SW, Jeong YW, Myung Y. Revision Surgery for Zygoma Reduction: Causes, Indications, Solutions, and Results from a 5-Year Review of 341 Cases. Aesthetic Plast Surg 2017; 41:161-170. [PMID: 28032152 DOI: 10.1007/s00266-016-0723-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2016] [Accepted: 10/16/2016] [Indexed: 11/30/2022]
Abstract
BACKGROUND Many patients undergo a revision surgery after malar reduction, which is one of the most popular aesthetic surgeries in Asia. We reviewed the leading causes of revision for malar reduction surgery to establish proper indications for revision, seek adequate surgical strategies, and share the results from revision surgical cases. METHODS A retrospective review was conducted involving 341 patients who underwent malar reduction reoperation between March 2010 and June 2015. Surgical strategies were decided based upon specific problems and complaints from the previous surgery. Facial photographs, cephalography, and computed tomography images were analyzed, and a patient satisfaction survey was conducted before and after the surgery. RESULTS A total of 341 patients (321 women, 20 men; average age, 26.6 years, range 18-40 years) were included. The main causes of reoperations were subjective dissatisfaction and nonunion-related symptoms. Undercorrection of the zygomatic body and arch (n = 175, 51.3%) was the most frequent reason for dissatisfaction. The patients underwent revision surgeries via different techniques and strategies based on previous problems from primary surgery, and postoperative patient satisfaction was high. Complications occurred in 35 patients (10.3%) after revision. CONCLUSIONS Based on the results of this study, patient dissatisfaction with the procedure can be minimized beforehand through accurate goal identification and careful planning. Bone nonunion is usually due to excessive bone resection during zygoma reduction surgery. Careful selection of the reposition site and appropriate fixation based on a thorough understanding of masseter action are essential in ensuring satisfactory outcomes without adverse side effects. LEVEL OF EVIDENCE IV This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 .
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Affiliation(s)
- Sang Woo Lee
- D.A. Plastic Surgery Clinic, Seoul, Republic of Korea
| | | | - Yujin Myung
- Department of Plastic and Reconstructive Surgery, Seoul National University College of Medicine, Seoul National University Bundang Hospital, 166 Gumi-ro, Bundang-gu, Seongnam-Si, Gyeong-gi do, 463-707, Republic of Korea.
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20
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Jeong YH, Lu H, Park CH, Li M, Luo H, Kim JJ, Liu S, Ko KH, Huang S, Hwang IS, Kang MN, Gong D, Park KB, Choi EJ, Park JH, Jeong YW, Moon C, Hyun SH, Kim NH, Jeung EB, Yang H, Hwang WS, Gao F. Stochastic anomaly of methylome but persistent SRY hypermethylation in disorder of sex development in canine somatic cell nuclear transfer. Sci Rep 2016; 6:31088. [PMID: 27501986 PMCID: PMC4977463 DOI: 10.1038/srep31088] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2016] [Accepted: 07/13/2016] [Indexed: 12/30/2022] Open
Abstract
Somatic cell nuclear transfer (SCNT) provides an excellent model for studying epigenomic reprogramming during mammalian development. We mapped the whole genome and whole methylome for potential anomalies of mutations or epimutations in SCNT-generated dogs with XY chromosomal sex but complete gonadal dysgenesis, which is classified as 78, XY disorder of sex development (DSD). Whole genome sequencing revealed no potential genomic variations that could explain the pathogenesis of DSD. However, extensive but stochastic anomalies of genome-wide DNA methylation were discovered in these SCNT DSD dogs. Persistent abnormal hypermethylation of the SRY gene was observed together with its down-regulated mRNA and protein expression. Failure of SRY expression due to hypermethylation was further correlated with silencing of a serial of testis determining genes, including SOX9, SF1, SOX8, AMH and DMRT1 in an early embryonic development stage at E34 in the XY(DSD) gonad, and high activation of the female specific genes, including FOXL2, RSPO1, CYP19A1, WNT4, ERα and ERβ, after one postnatal year in the ovotestis. Our results demonstrate that incomplete demethylation on the SRY gene is the driving cause of XY(DSD) in these XY DSD dogs, indicating a central role of epigenetic regulation in sex determination.
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Affiliation(s)
| | - Hanlin Lu
- BGI-Shenzhen, Shenzhen, China.,Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, China
| | - Chi-Hun Park
- Sooam Biotech Research Foundation, Seoul 152-904, Korea.,Animal Bioscience and Biotechnology Laboratory, United States Department of Agriculture, Beltsville, MD, 20705, USA.,Department of Animal and Avian Sciences, University of Maryland, College Park, MD, 20742, USA
| | | | | | - Joung Joo Kim
- Sooam Biotech Research Foundation, Seoul 152-904, Korea
| | | | - Kyeong Hee Ko
- Sooam Biotech Research Foundation, Seoul 152-904, Korea
| | | | - In Sung Hwang
- Sooam Biotech Research Foundation, Seoul 152-904, Korea
| | - Mi Na Kang
- Sooam Biotech Research Foundation, Seoul 152-904, Korea
| | - Desheng Gong
- BGI-Shenzhen, Shenzhen, China.,Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, China
| | - Kang Bae Park
- Sooam Biotech Research Foundation, Seoul 152-904, Korea
| | - Eun Ji Choi
- Sooam Biotech Research Foundation, Seoul 152-904, Korea
| | | | | | - Changjong Moon
- College of Veterinary Medicine, Chonnam National University, Gwangju 500-757, Korea
| | - Sang-Hwan Hyun
- Sooam Biotech Research Foundation, Seoul 152-904, Korea.,College of Veterinary Medicine, Chungbuk National University, Cheongju, Chungbuk 361-763, Korea
| | - Nam Hyung Kim
- College of Animal Sciences, Chungbuk National University, Cheongju, Chungbuk 361-763, Korea
| | - Eui-Bae Jeung
- College of Veterinary Medicine, Chungbuk National University, Cheongju, Chungbuk 361-763, Korea
| | | | - Woo Suk Hwang
- Sooam Biotech Research Foundation, Seoul 152-904, Korea
| | - Fei Gao
- BGI-Shenzhen, Shenzhen, China.,Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, China
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21
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Lee SW, Myung Y, Jeong YW. Bone Resection Versus Setback in Reduction Malarplasty: A Quantitative Analysis of the Migration of the Summit of the Zygoma. Aesthetic Plast Surg 2016; 40:349-59. [PMID: 27071384 DOI: 10.1007/s00266-016-0635-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2015] [Accepted: 03/16/2016] [Indexed: 11/25/2022]
Abstract
BACKGROUND We hypothesized that the amount of bone resection and setback together controls the effect of reducing the zygomatic body during reduction malarplasty; however, quantitative analyses of this movement are lacking. METHODS A retrospective study of patients who underwent reduction malarplasty between Aug. 2013 and Jan. 2015 was performed. We used 3-dimensional computed tomography (3D CT) scanning to measure movements of the summit of the zygoma (SOZ). We analyzed 394 zygomas in 197 patients. RESULTS The bone resection amount was not significantly correlated with the anteroposterior movement of the SOZ (p = 0.270); in contrast, the setback amount, was significantly correlated with anteroposterior SOZ movement (p < 0.001). The bone resection amount was not correlated with cephalocaudal movement (p = 0.158); however, cephalocaudal movement was significantly correlated with the setback amount (p < 0.001). Both the bone resection amount and the setback amount were correlated with mediolateral movement (p < 0.001). The amount of bone resection determined the mediolateral movement. Both the bone resection amount and the setback amount were correlated with the mean movement distance of the SOZ (p < 0.001). Both the R (2) (0.704 > 0.084) and β (0.839 > 0.290) values indicated that the setback amount made a larger contribution to the SOZ movement distance than did the bone resection amount. CONCLUSIONS Whereas bone resection was the major factor in the medial movement of the SOZ, bone setback was the major factor in the anterior and superior movement of the SOZ and a minor factor in the medial movement. The results indicate that both bone reposition and bone resection are important factors in maximizing surgical results of the reduction malarplasty. LEVEL OF EVIDENCE III This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 .
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Affiliation(s)
- Sang Woo Lee
- D.A. Plastic Surgery Clinic, 7, 8, 9 floor, 1303-37, Seocho 4-dong, Seocho-gu, Seoul, 137-855, Republic of Korea
| | - Yujin Myung
- Department of Plastic and Reconstructive Surgery, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Yeon Woo Jeong
- D.A. Plastic Surgery Clinic, 7, 8, 9 floor, 1303-37, Seocho 4-dong, Seocho-gu, Seoul, 137-855, Republic of Korea.
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22
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Jeong YW, Kim JJ, Kim HD, Hwang KC, Hyun SH, Kim NH, Jeung EB, Hwang WS. Preimplantation development of cloned canine embryos recovered by hysterectomy or surgical uterine flushing and subsequent pregnancy outcomes. Theriogenology 2015; 86:1865-1872.e1. [PMID: 27587271 DOI: 10.1016/j.theriogenology.2015.10.026] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2015] [Revised: 10/13/2015] [Accepted: 10/17/2015] [Indexed: 11/18/2022]
Abstract
Dog cloning offers a substantial potential because of the advancements in assisted reproductive technology and development of the human disease model in line with the transgenic technique. However, little is known about the development of the canine cloned embryo during the preimplantation period. The aim of this study was to investigate the most efficient method and time for collecting cloned canine preimplantation embryos and to ascertain the developmental timeline of cloned canine embryos. Two hundred cloned embryos were created and transferred into 11 surrogates. The preimplantation stage cloned embryos were then collected on Days 7, 8, and 9 using an ovariohysterectomy or the Foley balloon catheter method. The recovery rate of reconstructed embryos was 63.6% and 60.6% for the ovariohysterectomy and Foley balloon catheter methods, respectively. Although significant differences were observed in the early developmental stages (one-cell and 16-cell stages), no significant difference was observed in the blastocyst stage. Significantly higher blastocyst rate was observed when the embryos were collected on Day 8 (11.4%) than on Day 7 (0.0%; P < 0.05). At the proximal uterine horn on Day 7, no embryos at any stage were found, whereas on Days 8 and 9, blastocysts were found. We have observed a 63% initial pregnancy rate at 25 to 30 days after embryo transfer and a 50% full-term pregnancy rate, whereas 6.3% of the puppies were born, and 5.5% were born live among the total transferred embryos. Our results suggest that cloned embryos can develop to blastocysts by Day 8, and full-term pregnancy can be achieved after embryo transfer in canine.
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Affiliation(s)
- Yeon Woo Jeong
- Sooam Biotech Research Foundation, Seoul, Republic of Korea
| | - Joung Joo Kim
- Sooam Biotech Research Foundation, Seoul, Republic of Korea
| | - Hyun Duk Kim
- Sooam Biotech Research Foundation, Seoul, Republic of Korea
| | - Kyu Chan Hwang
- Sooam Biotech Research Foundation, Seoul, Republic of Korea
| | - Sang Hwan Hyun
- Sooam Biotech Research Foundation, Seoul, Republic of Korea; Laboratory of Veterinary Embryology and Biotechnology, College of Veterinary Medicine, Chungbuk National University, Cheongju, Republic of Korea
| | - Nam-Hyung Kim
- Department of Animal Sciences, Chungbuk National University, Cheongju, Republic of Korea
| | - Eui-Bae Jeung
- Laboratory of Veterinary Biochemistry and Molecular Biology, Chungbuk National University, Cheongju, Republic of Korea
| | - Woo Suk Hwang
- Sooam Biotech Research Foundation, Seoul, Republic of Korea.
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23
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Kong SW, Jeong YW, Kim JY. Correlation between balance and gait according to pelvic displacement in stroke patients. J Phys Ther Sci 2015; 27:2171-4. [PMID: 26311948 PMCID: PMC4540843 DOI: 10.1589/jpts.27.2171] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2015] [Accepted: 04/03/2015] [Indexed: 11/24/2022] Open
Abstract
[Purpose] The purpose of this study was to investigate the correlations of balance and
gait according to pelvic displacement in stroke patients. [Subjects] The subjects of this
study were 58 stroke patients who had been admitted to a hospital. [Methods] A Global
Postural System was used to measure pelvic displacement. To measure the balance ability, a
Tetrax balance system was used to measure the weight distribution index and stability
index. Gait ability was measured during the 10-Meter Walking Test and Figure-of-8 Walk
Test. [Results] The results of this study showed that was significant positive correlation
between the anterior superior iliac spine height difference in pelvic displacement and the
weight distribution index and significant positive correlation between the posterior
superior iliac spine height difference and the stability index in the normal position with
the eyes closed. Statistically significant positive correlation also was found between the
anterior superior iliac spine height difference and the straight and curved gait ability.
[Conclusion] The increased pelvic displacement in stroke patients results in a decrease in
balance ability and gait speed. This suggests that control of pelvic displacement is
necessary before functional training for patients with stroke.
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Affiliation(s)
- Seon Woong Kong
- Department of Physical Therapy, Saemirae Hospital, Republic of Korea
| | - Yeon Woo Jeong
- Department of Physical Therapy, Kwangju Women's University, Republic of Korea
| | - Jin Young Kim
- Department of Occupational Therapy, Howon University, Republic of Korea
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24
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Jeong YI, Park CH, Kim HS, Jeong YW, Lee JY, Park SW, Lee SY, Hyun SH, Kim YW, Shin T, Hwang WS. Effects of Trichostatin A on In vitro Development of Porcine Embryos Derived from Somatic Cell Nuclear Transfer. Asian-Australas J Anim Sci 2014; 26:1680-8. [PMID: 25049758 PMCID: PMC4092892 DOI: 10.5713/ajas.2013.13029] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/11/2013] [Revised: 08/20/2013] [Accepted: 04/13/2013] [Indexed: 12/03/2022]
Abstract
Many different approaches have been developed to improve the efficiency of animal cloning by somatic cell nuclear transfer (SCNT), one of which is to modify histone acetylation levels using histone deacetylase inhibitors (HDACi) such as trichostatin A (TSA). In the present study, we examined the effect of TSA on in vitro development of porcine embryos derived from SCNT. We found that TSA treatment (50 nM) for 24 h following oocyte activation improved blastocyst formation rates (to 22.0%) compared with 8.9% in the non-treatment group and total cell number of the blastocysts for determining embryo quality also increased significantly (88.9→114.4). Changes in histone acetylation levels as a result of TSA treatment were examined using indirect immunofluorescence and confocal microscopy scanning. Results showed that the histone acetylation level in TSA-treated embryos was higher than that in controls at both acetylated histone H3 lysine 9 (AcH3K9) and acetylated histone H4 lysine 12 (AcH4K12). Next, we compared the expression patterns of seven genes (OCT4, ID1; the pluripotent genes, H19, NNAT, PEG1; the imprinting genes, cytokeratin 8 and 18; the trophoblast marker genes). The SCNT blastocysts both with and without TSA treatment showed lower levels of OCT4, ID1, cytokeratin 8 and 18 than those of the in vivo blastocysts. In the case of the imprinting genes H19 and NNAT, except PEG1, the SCNT blastocysts both with and without TSA treatment showed higher levels than those of the in vivo blastocysts. Although the gene expression patterns between cloned blastocysts and their in vivo counterparts were different regardless of TSA treatment, it appears that several genes in NT blastocysts after TSA treatment showed a slight tendency toward expression patterns of in vivo blastocysts. Our results suggest that TSA treatment may improve preimplantation porcine embryo development following SCNT.
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Affiliation(s)
- Yeon Ik Jeong
- Sooam Biotech Research Foundation, 64 Kyunginro, Guro-gu, Seoul 152-895, Korea
| | - Chi Hun Park
- Sooam Biotech Research Foundation, 64 Kyunginro, Guro-gu, Seoul 152-895, Korea
| | - Huen Suk Kim
- Sooam Biotech Research Foundation, 64 Kyunginro, Guro-gu, Seoul 152-895, Korea
| | - Yeon Woo Jeong
- Sooam Biotech Research Foundation, 64 Kyunginro, Guro-gu, Seoul 152-895, Korea
| | - Jong Yun Lee
- Sooam Biotech Research Foundation, 64 Kyunginro, Guro-gu, Seoul 152-895, Korea
| | - Sun Woo Park
- Sooam Biotech Research Foundation, 64 Kyunginro, Guro-gu, Seoul 152-895, Korea
| | - Se Yeong Lee
- Sooam Biotech Research Foundation, 64 Kyunginro, Guro-gu, Seoul 152-895, Korea
| | - Sang Hwan Hyun
- Sooam Biotech Research Foundation, 64 Kyunginro, Guro-gu, Seoul 152-895, Korea ; Laboratory of Veterinary Embryology and Biotechnology, College of Veterinary Medicine, Chungbuk National University, Cheongju 361-763, Korea
| | - Yeun Wook Kim
- Sooam Biotech Research Foundation, 64 Kyunginro, Guro-gu, Seoul 152-895, Korea
| | - Taeyoung Shin
- Sooam Biotech Research Foundation, 64 Kyunginro, Guro-gu, Seoul 152-895, Korea
| | - Woo Suk Hwang
- Sooam Biotech Research Foundation, 64 Kyunginro, Guro-gu, Seoul 152-895, Korea
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25
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Hwang I, Jeong YW, Kim JJ, Lee HJ, Kang M, Park KB, Park JH, Kim YW, Kim WT, Shin T, Hyun SH, Jeung EB, Hwang WS. Successful cloning of coyotes through interspecies somatic cell nuclear transfer using domestic dog oocytes. Reprod Fertil Dev 2014; 25:1142-8. [PMID: 23217630 DOI: 10.1071/rd12256] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2012] [Accepted: 10/23/2012] [Indexed: 11/23/2022] Open
Abstract
Interspecies somatic cell nuclear transfer (iSCNT) is an emerging assisted reproductive technology (ART) for preserving Nature's diversity. The scarcity of oocytes from some species makes utilisation of readily available oocytes inevitable. In the present study, we describe the successful cloning of coyotes (Canis latrans) through iSCNT using oocytes from domestic dogs (Canis lupus familiaris or dingo). Transfer of 320 interspecies-reconstructed embryos into 22 domestic dog recipients resulted in six pregnancies, from which eight viable offspring were delivered. Fusion rate and cloning efficiency during iSCNT cloning of coyotes were not significantly different from those observed during intraspecies cloning of domestic dogs. Using neonatal fibroblasts as donor cells significantly improved the cloning efficiency compared with cloning using adult fibroblast donor cells (P<0.05). The use of domestic dog oocytes in the cloning of coyotes in the present study holds promise for cloning other endangered species in the Canidae family using similar techniques. However, there are still limitations of the iSCNT technology, as demonstrated by births of morphologically abnormal coyotes and the clones' inheritance of maternal domestic dog mitochondrial DNA.
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Affiliation(s)
- Insung Hwang
- Sooam Biotech Research Foundation, 64 Kyungin-ro, Guro-gu, Seoul 152-895, Republic of Korea
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26
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Lee GS, Jeong YW, Kim JJ, Park SW, Ko KH, Kang M, Kim YK, Jung EM, Moon C, Hyun SH, Hwang KC, Kim NH, Shin T, Jeung EB, Hwang WS. A canine model of Alzheimer's disease generated by overexpressing a mutated human amyloid precursor protein. Int J Mol Med 2014; 33:1003-12. [PMID: 24481173 DOI: 10.3892/ijmm.2014.1636] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2013] [Accepted: 01/22/2014] [Indexed: 11/06/2022] Open
Abstract
Canines are considered the most authentic model for studying multifactorial human diseases, as these animals typically share a common environment with man. Somatic cell nuclear transfer (SCNT) technology along with genetic engineering of nuclear donor cells provides a unique opportunity for examining human diseases using transgenic canines. In the present study, we generated transgenic canines that overexpressed the human amyloid precursor protein (APP) gene containing well-characterized familial Alzheimer's disease (AD) mutations. We successfully obtained five out of six live puppies by SCNT. This was confirmed by observing the expression of green fluorescence protein in the body as a visual transgenic marker and the overexpression of the mutated APP gene in the brain. The transgenic canines developed AD-like symptoms, such as enlarged ventricles, an atrophied hippocampus, and β-amyloid plaques in the brain. Thus, the transgenic canines we created can serve as a novel animal model for studying human AD.
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Affiliation(s)
- Geun-Shik Lee
- College of Veterinary Medicine and Institute of Veterinary Science, Kangwon National University, Chucheon, Gangwon 200‑701, Republic of Korea
| | - Yeon Woo Jeong
- SooAm Biotech Research Foundation, Seoul 152-904, Republic of Korea
| | - Joung Joo Kim
- SooAm Biotech Research Foundation, Seoul 152-904, Republic of Korea
| | - Sun Woo Park
- SooAm Biotech Research Foundation, Seoul 152-904, Republic of Korea
| | - Kyeong Hee Ko
- SooAm Biotech Research Foundation, Seoul 152-904, Republic of Korea
| | - Mina Kang
- SooAm Biotech Research Foundation, Seoul 152-904, Republic of Korea
| | - Yu Kyung Kim
- SooAm Biotech Research Foundation, Seoul 152-904, Republic of Korea
| | - Eui-Man Jung
- Laboratory of Veterinary Biochemistry and Molecular Biology, College of Veterinary Medicine, Chungbuk National University, Cheongju, Chungbuk 361-763, Republic of Korea
| | - Changjong Moon
- Department of Veterinary Anatomy, College of Veterinary Medical Institute, Chonnam National University, Gwangju, Gyeonggi 500-757, Republic of Korea
| | - Sang Hwan Hyun
- Laboratory of Veterinary Embryology and Biotechnology, College of Veterinary Medicine, Chungbuk National University, Cheongju, Chungbuk 361-763, Republic of Korea
| | - Kyu-Chan Hwang
- SooAm Biotech Research Foundation, Seoul 152-904, Republic of Korea
| | - Nam-Hyung Kim
- Department of Animal Science, Chungbuk National University, Cheongju, Chungbuk 361-763, Republic of Korea
| | - Taeyoung Shin
- SooAm Biotech Research Foundation, Seoul 152-904, Republic of Korea
| | - Eui-Bae Jeung
- Laboratory of Veterinary Biochemistry and Molecular Biology, College of Veterinary Medicine, Chungbuk National University, Cheongju, Chungbuk 361-763, Republic of Korea
| | - Woo Suk Hwang
- SooAm Biotech Research Foundation, Seoul 152-904, Republic of Korea
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Moon JS, Cheong NR, Yang SY, Kim IS, Chung HJ, Jeong YW, Park JC, Kim MS, Kim SH, Ko HM. Lipopolysaccharide-induced indoleamine 2,3-dioxygenase expression in the periodontal ligament. J Periodontal Res 2013; 48:733-9. [PMID: 23488665 DOI: 10.1111/jre.12063] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/19/2013] [Indexed: 12/21/2022]
Abstract
BACKGROUND AND OBJECTIVE Indoleamine 2,3-dioxygenase (IDO) is a tryptophan-oxidizing enzyme with immune-inhibitory effects. The aim of this study was to investigate the expression of IDO by lipopolysaccharide (LPS), a component of gram-negative bacteria, in human periodontal ligament (PDL) cells. MATERIAL AND METHODS Human PDL cells and gingival fibroblasts (GFs) were prepared from explants of human PDLs and from gingival tissues of clinically healthy donors, respectively. Real-time RT-PCR, western blotting and the IDO enzyme assay were performed to determine the expression of IDO following LPS treatment of cells. LPS was injected into mice tail veins to evaluate the effects of LPS in vivo in the maxillary first molar. Immunofluorescence staining and histological analysis were followed to localize IDO in mouse PDL. RESULTS The level of expression of IDO mRNA in primary human PDL cells after LPS treatment was increased in a dose-dependent manner, reaching a peak 8 h after LPS treatment. The expression and activities of IDO protein were significantly increased in comparison with those of the control. In addition, the increased production of kynurenine in culture medium was observed 72 h after LPS treatment. In the immunofluorescence findings, stronger immunoreactivities were shown in PDL than in gingival tissues in the maxillae. In accordance with the immunofluorescence findings, LPS treatment induced a strong up-regulation of IDO mRNA in human PDL cells, whereas human GFs showed only a weak response to LPS. CONCLUSION These results clearly show that IDO was induced by LPS in primary human PDL cells, suggesting that PDL might be involved in the regulation of oral inflammatory disease.
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Affiliation(s)
- J S Moon
- Department of Oral Anatomy, Dental Science Research Institute, School of Dentistry, 2nd stage Brain Korea, Medical Research Center for Biomineralization Disorders, Chonnam National University, Gwangju, South Korea
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Jeong YH, Park CH, Jang GH, Hwang IS, Jeong YI, Jeong EJ, Jeong YW, Hyun SH, Kim YW, Shin T, Jeung EB, Hwang WS. Reduced Hyperacute Rejection by Triple Transgenic Expression of Human Complement Regulatory Factors (hDAF and hCD59) and H-Transferase. Biol Reprod 2012. [DOI: 10.1093/biolreprod/87.s1.562] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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29
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Hwang I, Jeong YW, Kim JJ, Lee HJ, Kang M, Park KB, Park JH, Kim YW, Kim WT, Shin T, Hyun SH, Hwang WS. Successful Cloning of Coyotes Through Interspecies Somatic Cell Nuclear Transfer (iSCNT) Using Domestic Dog Oocytes. Biol Reprod 2012. [DOI: 10.1093/biolreprod/87.s1.56] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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30
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Jeon HY, Jeong YW, Kim YW, Jeong YI, Hossein SM, Yang H, Hyun SH, Jeung EB, Hwang WS. Senescence is accelerated through donor cell specificity in cloned pigs. Int J Mol Med 2012; 30:383-91. [PMID: 22614175 DOI: 10.3892/ijmm.2012.1003] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2012] [Accepted: 04/27/2012] [Indexed: 11/05/2022] Open
Abstract
Animals cloned by somatic cell nuclear transfer (SCNT) sometimes have abnormalities that result in large offspring syndrome or early death during gestation due to respiratory and metabolic defects. We cloned pigs using two sources of donor cells and observed phenotypic anomalies in three pigs cloned from one type of cell, s-pig fetal fibroblasts. These animals had many wrinkles on their faces and bodies and looked older than age-matched normal pigs. We performed the present study to examine whether the wrinkled phenotype in the cloned pigs was due to senescence, a genetic problem with donor specificity, or epigenetic problems with reprogramming. To address this issue, we investigated biomarkers of senescence, including telomere length and the expression of senescence-associated β-galactosidase (SA-β-gal), glyceraldehyde phosphate dehydrogenase (GAPDH) and β-actin. We also assessed the methylation status of euchromatic PRE-1 repetitive sequences and centromeric satellite DNA, and measured the mRNA levels of six imprinted genes, Copg2, Mest, Igf2R, GNAS, SNRPN and Ube3a. The telomeres of the wrinkled cloned pigs were much shorter than those of the normal cloned pigs and age-matched normal pigs. In the wrinkled cloned pigs, SA-β-gal activity was detected and GAPDH and β-actin were repressed. The mRNA levels of Mest, GNAS and Ube3a were reduced in the wrinkled cloned pigs, although there was no difference between the normal cloned pigs and normal controls. This gene expression analysis indicates that the wrinkled abnormality of our pigs originates from genetic abnormalities in the donor cells used for SCNT.
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Affiliation(s)
- Hyun Yong Jeon
- Sooam Biotech Research Foundation, Guro-gu, Seoul 152-904, Republic of Korea
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Hossein MS, Jeong YW, Park SW, Kim JJ, Lee E, Ko KH, Hyuk P, Hoon SS, Kim YW, Hyun SH, Shin T, Hwang WS. Birth of Beagle dogs by somatic cell nuclear transfer. Anim Reprod Sci 2009; 114:404-14. [DOI: 10.1016/j.anireprosci.2008.10.010] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2008] [Revised: 09/24/2008] [Accepted: 10/03/2008] [Indexed: 01/28/2023]
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Kim S, Park SW, Hossein MS, Jeong YW, Kim JJ, Lee E, Kim YW, Hyun SH, Shin T, Hwang WS. Production of cloned dogs by decreasing the interval between fusion and activation during somatic cell nuclear transfer. Mol Reprod Dev 2009; 76:483-9. [PMID: 18951374 DOI: 10.1002/mrd.20953] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
To improve the efficiency of somatic cell nuclear transfer (SCNT) in dogs, we evaluated whether or not the interval between fusion and activation affects the success rate of SCNT. Oocytes retrieved from outbred dogs were reconstructed with adult somatic cells from a male or female Golden Retriever. In total, 151 and 225 reconstructed oocytes were transferred to 9 and 14 naturally synchronized surrogates for male and female donor cells, respectively. Chromosomal morphology was evaluated in 12 oocytes held for an interval of 2 hr between fusion and activation and 14 oocytes held for an interval of 4 hr. Three hundred seventy-six and 288 embryos were transferred to 23 and 16 surrogates for the 2 and 4 hr interval groups, respectively. Both the male (two pregnant surrogates gave birth to three puppies) and female (one pregnant surrogate gave birth to one puppy) donor cells gave birth to live puppies (P > 0.05). In the 2 hr group, significantly more reconstructed oocytes showed condensed, metaphase-like chromosomes compared to the 4 hr group (P < 0.05). A significantly higher pregnancy rate and a greater number of live born puppies were observed in the 2 hr group (13.0% and 1.1%, respectively) compared to the 4 hr group (0%) (P < 0.05). In total, three surrogate dogs carried pregnancies to term and four puppies were born. These results demonstrate that decreasing the interval between fusion and activation increases the success rate of clone production and pregnancy. These results may increase the overall efficiency of SCNT in the canine family.
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Affiliation(s)
- Sue Kim
- SooAm Biotech Research Foundation, Wonsam-myeon, Cheoin-gu, Yongin-si, Gyeonggi-do, South Korea
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Hossein MS, Jeong YW, Park SW, Kim JJ, Lee E, Ko KH, Kim HS, Kim YW, Hyun SH, Shin T, Hawthorne L, Hwang WS. Cloning missy: obtaining multiple offspring of a specific canine genotype by somatic cell nuclear transfer. Cloning Stem Cells 2009; 11:123-30. [PMID: 19226214 DOI: 10.1089/clo.2008.0029] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
The present study was undertaken to evaluate two activation methods for somatic cell nuclear transfer (SCNT), namely, fusion and simultaneous activation (FSA, fusion medium contains calcium), versus fusion followed by chemical activation (F+CA, fusion medium does not contain calcium), and to evaluate the effects of parity of recipient dogs on the success of SCNT. Oocytes retrieved from outbred dogs were reconstructed with adult somatic cells collected from an 11-year-old female dog named Missy. In the FSA method, oocytes were fused and activated at the same time using two DC pulses of 1.75 kV/cm for 15 microsec. In the F+CA method, oocytes were fused with two DC pulses of 1.75 kV/cm for 15 microsec, and then activated 1 h after fusion by 10 microM calcium ionophore for 4 m and cultured for 4 h in 1.9 mM 6-dimethylaminopurine for postactivation. Activation method had a significant impact on the production efficiency of cloned dogs. There was a significant difference in full-term pregnancy rate and percentage of live puppies between the two methods (6.3% and 38.5% for FSA and F+CA, respectively). In our study, four out of five live offspring produced by F+CA survived versus FSA, which did not result in any surviving puppies. Overall, as few as 14 dogs and 54 reconstructed embryos were needed to produce a cloned puppy. In addition, the parity of recipient bitches had no effect on the success of SCNT in canine species. Both the nullipara and multipara bitches produced live puppies following SCNT-ET.
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Hossein MS, Jeong YW, Kim S, Kim JJ, Park SW, Jeong CS, Hyun SH, Hwang WS. Protocol for the Recovery of In Vivo Matured Canine Oocytes Based on Once Daily Measurement of Serum Progesterone. Cloning and Stem Cells 2008; 10:403-8. [DOI: 10.1089/clo.2008.0001] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
| | - Yeon Woo Jeong
- Sooam Biotech Research Foundation, Seoul, Republic of Korea
| | - Sue Kim
- Sooam Biotech Research Foundation, Seoul, Republic of Korea
| | - Jeong Joo Kim
- Sooam Biotech Research Foundation, Seoul, Republic of Korea
| | - Sun Woo Park
- Sooam Biotech Research Foundation, Seoul, Republic of Korea
| | | | - Sang Hwan Hyun
- Sooam Biotech Research Foundation, Seoul, Republic of Korea
- Laboratory of Veterinary Biotechnology, College of Veterinary Medicine, Chungbuk National University, Chungbuk, Republic of Korea
| | - Woo Suk Hwang
- Sooam Biotech Research Foundation, Seoul, Republic of Korea
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Lee E, Kim JH, Park SM, Jeong YI, Lee JY, Park SW, Choi J, Kim HS, Jeong YW, Kim S, Hyun SH, Hwang WS. The analysis of chromatin remodeling and the staining for DNA methylation and histone acetylation do not provide definitive indicators of the developmental ability of inter-species cloned embryos. Anim Reprod Sci 2008; 105:438-50. [DOI: 10.1016/j.anireprosci.2007.12.021] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2007] [Revised: 11/27/2007] [Accepted: 12/12/2007] [Indexed: 10/22/2022]
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Lee E, Jeong YI, Park SM, Lee JY, Kim JH, Park SW, Hossein MS, Jeong YW, Kim S, Hyun SH, Hwang WS. Beneficial effects of brain-derived neurotropic factor on in vitro maturation of porcine oocytes. Reproduction 2007; 134:405-14. [PMID: 17709559 DOI: 10.1530/rep-06-0288] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
In an effort to improve the quality ofin vitroproduced porcine embryos, we investigated the effect of brain-derived neurotropic factor (BDNF), a neurotropin family member, onin vitromaturation (IVM) of porcine oocytes. The expression of BDNF and truncated isoforms of its receptor, tyrosine kinase B (TrkB), and p75 common neurotropin receptor was detected in both follicular cells and metaphase-I stage oocytes by RT-PCR. However, mRNA of full-length TrkB was not found in oocytes although it was detected in follicular cells. The expression pattern of BDNF and TrkB was confirmed by immunohistochemistry. Supplementation with BDNF (30 ng/ml) during IVM significantly (P< 0.05) increased the first polar body extrusion and glutathione levels in oocytes, whereas the effect of BDNF on nuclear maturation was diminished when gonadotropin and epidermal growth factor (EGF) were added to the culture media. However, treatment with BDNF (30 ng/ml) along with EGF (10 ng/ml) in the presence of gonadotropin significantly (P< 0.05) increased the developmental competence of oocytes to the blastocyst stage after bothin vitrofertilization (IVF; 29.1% when compared with control, 15.6%) and somatic cell nuclear transfer (SCNT; 13.6% when compared with control, 3%). This appeared to reflect a stimulatory interaction between BDNF and EGF to enhance the cytoplasmic maturation of oocytes to support successful preimplantation development. In conclusion, BDNFenhanced nuclearand cytoplasmic maturation of oocytes by autocrine and/or paracrine signals. Also, when used together with EGF, BDNF increased the developmental potency of embryos after IVF and SCNT, demonstrating an improvedin vitroproduction protocol for porcine oocytes.
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Affiliation(s)
- Eugine Lee
- SooAm Biotech Research Foundation, Sooambuilding 1027-4, Bangbae3-dong, Seocho-gu, Seoul 137-851, South Korea
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Kim S, Kim JH, Lee EG, Jeong YW, Park SM, Hossein MS, Park SW, Lee JY, Jeong YI, Kim YW, Hyun SH, Hwang WS. ESTABLISHMENT OF PORCINE EMBRYONIC STEM CELLS DERIVED FROM CLONED BLASTOCYSTS RECONSTRUCTED WITH FETAL AND NEWBORN FIBROBLASTS OF HUMAN DECAY-ACCELERATING FACTOR (HDAF) TRANSGENIC PIGS. Biol Reprod 2007. [DOI: 10.1093/biolreprod/77.s1.113c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Hossein M, Jeong YW, Kim S, Kim JJ, Park SW, Kim YW, Hyun SH, Hwang WS. DEVELOPMENT OF A PROTOCOL FOR RECOVERY OF IN VIVO MATURED CANINE OOCYTES BASED ON ONCE DAILY MEASUREMENT OF SERUM PROGESTERONE. Biol Reprod 2007. [DOI: 10.1093/biolreprod/77.s1.131b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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39
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Bhandari D, Hossein M, Jeong YW, Kim S, Kim JH, Hwang WS. EFFECTS OF GLUTATHIONE ON THE IN VITRO DEVELOPMENT OF PORCINE EMBRYOS IN TWO DIFFERENT CULTURE MEDIA. Biol Reprod 2007. [DOI: 10.1093/biolreprod/77.s1.89] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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40
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Jeong YW, Hossein MS, Bhandari DP, Kim YW, Kim JH, Park SW, Lee E, Park SM, Jeong YI, Lee JY, Kim S, Hwang WS. Effects of insulin-transferrin-selenium in defined and porcine follicular fluid supplemented IVM media on porcine IVF and SCNT embryo production. Anim Reprod Sci 2007; 106:13-24. [PMID: 17482776 DOI: 10.1016/j.anireprosci.2007.03.021] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2006] [Revised: 01/31/2007] [Accepted: 03/23/2007] [Indexed: 11/19/2022]
Abstract
Insulin-transferrin-selenium (ITS) together has been used in different in vitro maturation system to support in vitro maturation of oocytes. The present study was designed to evaluate the effects of ITS in defined (0.1% PVA) and porcine follicular fluid (10% pFF) supplemented IVM media on the developmental competence of porcine oocytes. Three combinations of ITS, 10 mg/L insulin (Ins), 5.5mg/L transferrin (Tf) and 5 microg/L selenium (Se), 20mg/L Ins, 11 mg/L Tf and 10 microg/L Se, and 30 mg/L Ins, 16.5 mg/L TF and 15 microg/L Se, were used. The data were analyzed by one-way ANOVA and Tukey was used as the post hoc test. Both in the defined and pFF supplemented media, higher concentration of intracellular glutathione was observed in presence of ITS (4.6-4.8, and 6.9-7.1 picomole/oocyte for defined and pFF groups, respectively) compared to the respective control (2.1 and 4.3 picomole/oocyte for defined and pFF group, respectively). ITS decreased polyspermy and increased male pronucleus formation in both the defined and pFF supplemented medium. There was no difference in different treatment groups. The highest frequency of blastocyst formation rate and number of cells in blastocyst following IVF and SCNT was observed in pFF+ITS group (p<0.05). In conclusion, ITS addition during IVM improved the developmental competence of porcine oocytes in both the defined and pFF supplemented groups. Thus, we recommended to supplement porcine IVM medium with 10 microg/mL insulin, 5.5 microg/mL transferrin and 5 microg/mL selenium.
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Affiliation(s)
- Yeon Woo Jeong
- Sooam Biotech Research Foundation, Bangbae 3 Dong, Seoul 137-851, Republic of Korea
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Hashem MA, Bhandari DP, Hossein MS, Jeong YW, Kim S, Kim JH, Koo OJ, Park SM, Lee EG, Park SW, Kang SK, Lee BC. Effect of Essential and Nonessential Amino Acids in North Carolina State University (NCSU)-23 Medium on Development of Porcine In vitro Fertilized Embryos. Asian Australas J Anim Sci 2007. [DOI: 10.5713/ajas.2007.693] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Hossein MS, Kim YW, Park SM, Koo OJ, Hashem MA, Bhandari DP, Jeong YW, Kim S, Kim JH, Lee EG, Park SW, Kang SK, Lee BC, Hwang WS. Antioxidant Favors the Developmental Competence of Porcine Parthenogenotes by Reducing Reactive Oxygen Species. Asian Australas J Anim Sci 2007. [DOI: 10.5713/ajas.2007.334] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Lee E, Lee SH, Kim S, Jeong YW, Kim JH, Koo OJ, Park SM, Hashem MA, Hossein MS, Son HY, Lee CK, Hwang WS, Kang SK, Lee BC. Analysis of nuclear reprogramming in cloned miniature pig embryos by expression of Oct-4 and Oct-4 related genes. Biochem Biophys Res Commun 2006; 348:1419-28. [PMID: 16920069 DOI: 10.1016/j.bbrc.2006.08.004] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2006] [Accepted: 08/02/2006] [Indexed: 11/27/2022]
Abstract
Xenotransplantation is a rapidly expanding field of research and cloned miniature pigs have been considered as a model animal for it. However, the efficiency of somatic cell nuclear transfer (SCNT) is extremely low, with most clones resulting in early lethality and several kinds of aberrant development. A possible explanation for the developmental failure of SCNT embryos is insufficient reprogramming of the somatic cell nucleus by the oocyte. In order to test this, we analyzed the reprogramming capacity of differentiated fibroblast cell nuclei and embryonic germ cell nuclei with Oct-4 and Oct-4 related genes (Ndp5211, Dppa2, Dppa3, and Dppa5), which are important for embryonic development, Hand1 and GATA-4, which are important for placental development, as molecular markers using RT-PCR. The Oct-4 expression level was significantly lower (P<0.05) in cloned hatched blastocysts derived from fibroblasts and many of fibroblast-derived clones failed to reactivate at least one of the tested genes, while most of the germ cell clones and control embryos correctly expressed these genes. In conclusion, our results suggest that the reprogramming of fibroblast-derived cloned embryos is highly aberrant and this improper reprogramming could be one reason of the early lethality and post-implantation anomalies of somatic cell-derived clones.
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Affiliation(s)
- Eugine Lee
- Department of Theriogenology and Biotechnololgy, College of Veterinary Medicine, Seoul National University, Seoul 151-742, South Korea
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Kim S, Lee SH, Kim JH, Jeong YW, Hashem MA, Koo OJ, Park SM, Lee EG, Hossein MS, Kang SK, Lee BC, Hwang WS. Anti-apoptotic effect of insulin-like growth factor (IGF)-I and its receptor in porcine preimplantation embryos derived from in vitro fertilization and somatic cell nuclear transfer. Mol Reprod Dev 2006; 73:1523-30. [PMID: 16894543 DOI: 10.1002/mrd.20531] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Insulin-like growth factor (IGF)-I is a receptor-mediated autocrine and/or paracrine growth and/or survival factor for mammalian embryo development. It is known to promote the growth and development of mouse preimplantation embryos. The present study was designed to investigate the effects of IGF-I (50 ng/ml), anti-IGF-I receptor antibody (50 ng/ml) and their combination on porcine preimplantation embryo development. Furthermore, the mechanism underlying the embryotropic effects of IGF-I was evaluated by monitoring the incidence of apoptosis and expression of apoptosis-related genes. In both in vitro fertilized (IVF) and somatic cell nuclear transfer (SCNT) embryos, culturing with IGF-I increased the rate of blastocyst formation and this embryotrophic effect was neutralized by culturing with IGF-I along with anti-IGF-I receptor (IGF-IR) antibody. Culturing IVF and SCNT embryos with IGF-I significantly increased the number of total cells in blastocysts and decreased the number of apoptotic nuclei. These effects of IGF-I were also neutralized by culturing with IGF-I along with anti-IGF-IR antibody. Expression of the anti-apoptotic Bcl-2 gene was increased, while expression of the pro-apoptotic Bax was decreased in both IVF and SCNT embryos cultured with IGF-I. In both IVF and SCNT embryos, anti-IGF-IR antibody along with IGF-I neutralized the effect of IGF-I on expression of Bcl-2 and Bax genes. In conclusion, the present study demonstrated that IGF-I through its specific receptors improved the developmental competence of IVF and SCNT embryos by decreasing the incidence of apoptosis and regulating apoptosis-related genes in porcine preimplantation embryos.
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Affiliation(s)
- Sue Kim
- Department of Theriogenology and Biotechnology, College of Veterinary Medicine, Seoul National University, Seoul, Korea
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Jeong YW, Park SW, Hossein MS, Kim S, Kim JH, Lee SH, Kang SK, Lee BC, Hwang WS. Antiapoptotic and embryotrophic effects of alpha-tocopherol and L-ascorbic acid on porcine embryos derived from in vitro fertilization and somatic cell nuclear transfer. Theriogenology 2006; 66:2104-12. [PMID: 16876856 DOI: 10.1016/j.theriogenology.2006.06.007] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2006] [Accepted: 06/22/2006] [Indexed: 11/25/2022]
Abstract
The objective was to determine optimal concentrations of alpha-tocopherol and l-ascorbic acid for development of porcine embryos derived from in vitro-fertilization (IVF) or somatic cell nuclear transfer (SCNT). The frequency of blastocyst formation in IVF embryos was 17.6, 28.6, 32.4 and 21.4% for control, 50, 100 and 200microM alpha-tocopherol, respectively, whereas in SCNT embryos, the frequency was 12.8, 19.0, 24.8 and 17.7% for corresponding concentrations of alpha-tocopherol. For both IVF and SCNT embryos, there were significantly more cells in blastocysts and the embryos had greater developmental competence when the embryo culture medium was supplemented with 100microM alpha-tocopherol. Although either alpha-tocopherol or l-ascorbic acid reduced the proportion of apoptotic cells in blastocysts, in combination they resulted in rates of apoptosis that were similar to the control group. For IVF embryos, the apoptotic index was 0.09 and 0.11 for alpha-tocopherol or l-ascorbic acid at a concentration of 100microM, respectively. Conversely, when these antioxidants were supplemented together, the apoptotic index increased significantly and was similar to the control group (i.e., 0.17 and 0.21 for combined and control group). For SCNT embryos, the apoptotic index was 0.10 for 100microM for both alpha-tocopherol and l-ascorbic acid, whereas the index was 0.23 and 0.17 for control and combined group. In conclusion, we recommend supplementing porcine embryo culture medium with 100microM alpha-tocopherol or 100microM l-ascorbic (as a second choice).
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Affiliation(s)
- Yeon Woo Jeong
- Department of Theriogenology and Biotechnology, College of Veterinary Medicine, Seoul National University, 56-1 Sillim-dong, Gwanak-gu, Seoul 151-742, Korea
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Hossein MS, Hashem MA, Jeong YW, Lee MS, Kim S, Kim JH, Koo OJ, Park SM, Lee EG, Park SW, Kang SK, Lee BC, Hwang WS. Temporal effects of alpha-tocopherol and L-ascorbic acid on in vitro fertilized porcine embryo development. Anim Reprod Sci 2006; 100:107-17. [PMID: 16860500 DOI: 10.1016/j.anireprosci.2006.06.013] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2006] [Revised: 06/17/2006] [Accepted: 06/21/2006] [Indexed: 12/31/2022]
Abstract
The susceptibility of embryos to reactive oxygen species (ROS) varies in different stages of embryo development. The present study evaluated temporal effects of alpha-tocopherol and L-ascorbic acid on the porcine embryo development, and investigated whether a single or twice supplements of these two antioxidants at a divided concentrations favors the embryo development. In order to determine temporal effects of alpha-tocopherol and/or L-ascorbic acid, 100 microM alpha-tocopherol or 200 microM L-ascorbic acid were supplemented to the North Carolina State University (NCSU)-23 embryo culture media at 0, 48, 96 and 120 h of culture. In another set of experiments, the concentration was divided into two equal halves, i.e., 50 microM alpha-tocopherol and 100 microM L-ascorbic acid, and supplemented twice at 0 and 48, 0 and 96, or 48 and 96 h of culture. Supplementing culture media with 100 microM alpha-tocopherol for the entire culture period of 168 h or starting from the 48 h of culture yielded higher blastocyst percentage compared with the control or starting from the 96 or 120 h of culture. L-Ascorbic acid (200 microM) alone or together with alpha-tocopherol (100 microM) with a single supplement did not affect the frequency of blastocyst formation or number of cells in blastocyst. L-ascorbic acid with a divided supplements yielded higher blastocyst percentage compared with the control. No synergistic effect was observed on embryo development at a single supplement of these antioxidants. Although, at divided supplements higher blastocyst percentage was observed compared with control group, no further beneficial effect was observed compared with alpha-tocopherol or L-ascorbic acid alone. Our results demonstrated that the embryotrophic effects of alpha-tocopherol and/or L-ascorbic acid, in terms of frequency of blastocyst formation and number of cells in blastocyst, depends on the concentration and supplementation timing.
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Affiliation(s)
- Mohammad Shamim Hossein
- Department of Theriogenology and Biotechnology, College of Veterinary Medicine, Seoul National University, 56-1 Sillim-dong, Gwanak-gu, Seoul 151-742, Republic of Korea
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Kim JH, Lee SH, Kim S, Jeong YW, Koo OJ, Hashem MDA, Park SM, Lee EG, Hossein MS, Kang SK, Lee BC, Hwang WS. Embryotrophic effects of ethylenediaminetetraacetic acid and hemoglobin on in vitro porcine embryos development. Theriogenology 2006; 66:449-55. [PMID: 16472851 DOI: 10.1016/j.theriogenology.2005.12.008] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2005] [Revised: 12/15/2005] [Accepted: 12/19/2005] [Indexed: 01/03/2023]
Abstract
This study investigated the embryotrophic effects of ethylenediaminetetraacetic acid (EDTA) and hemoglobin (Hb) on porcine preimplantation embryo development. Porcine embryos produced by in vitro maturation/fertilization were cultured for 6 days in modified North Carolina State University-23 medium (mNCSU-23) supplemented with EDTA and/or Hb. In Exp. 1, culturing porcine zygotes with 100 microM EDTA significantly increased cleavage frequencies (85.3%) at 48 h post insemination and the number of inner cell mass (ICM) (9.6+/-5.5) compared to the control (7.0+/-2.8). However, 100 microM EDTA did not improve blastocyst formation compared to 0, 1 or 10 microM EDTA. In Exp. 2, in vitro fertilized oocytes were cultured with 0, 1 or 10 microg/ml Hb. Culturing with Hb did not promote porcine embryo development, but significantly increased the cell numbers of blastocysts in 1 microg/ml Hb compared to 0 or 10 microg/ml Hb. In Exp. 3, culturing embryos with 100 microM EDTA+1 microg/ml Hb significantly improved frequencies of cleavage, blastocyst formation, and total cell numbers in blastocysts compared to the control. Moreover, 100 microM EDTA, 1 microg/ml Hb and their combination reduced reactive oxygen species (ROS) accumulation and decreased the incidence of apoptosis. In conclusion, the present study clearly demonstrated that the combining treatment of EDTA and Hb improved IVF porcine embryo development.
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Affiliation(s)
- Ji Hye Kim
- Department of Theriogenology and Biotechnology, College of Veterinary Medicine, Seoul National University, Seoul 151-742, South Korea
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Jeon HY, Hyun SH, Lee GS, Kim HS, Kim S, Jeong YW, Kang SK, Lee BC, Han JY, Ahn C, Hwang WS. The analysis of telomere length and telomerase activity in cloned pigs and cows. Mol Reprod Dev 2005; 71:315-20. [PMID: 15806556 DOI: 10.1002/mrd.20279] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Inefficiency in the production of cloned animals is most likely due to epigenetic reprogramming errors after somatic cell nuclear transfer (SCNT). In order to investigate whether nuclear reprogramming restores cellular age of donor cells after SCNT, we measured telomere length and telomerase activity in cloned pigs and cattle. In normal pigs and cattle, the mean telomere length was decreased with biological aging. In cloned or transgenic cloned piglets, the mean telomere length was elongated compared to nuclear donor fetal fibroblasts and age-matched normal piglets. In cloned cattle, no increases in mean telomere length were observed compared to nuclear donor adult fibroblasts. In terms of telomerase activity, significant activity was observed in nuclear donor cells and normal tissues from adult or new-born pigs and cattle, with relatively higher activity in the porcine tissues compared to the bovine tissues. Cloned calves and piglets showed the same level of telomerase activity as their respective donor cells. In addition, no difference in telomerase activity was observed between normal and transgenic cloned piglets. However, increased telomerase activity was observed in porcine SCNT blastocysts compared to nuclear donor cells and in vitro fertilization (IVF)-derived blastocysts, suggesting that the elongation of telomere lengths observed in cloned piglets could be due to the presence of higher telomerase activity in SCNT blastocysts. In conclusion, gathering from the comparative studies with cattle, we were able to demonstrate that telomere length in cloned piglets was rebuilt or elongated with the use of cultured donor fetal fibroblasts.
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Affiliation(s)
- H Y Jeon
- College of Veterinary Medicine, Seoul National University, Seoul, Korea
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Lee GS, Kim HS, Hyun SH, Lee SH, Jeon HY, Nam DH, Jeong YW, Kim S, Kim JH, Han JY, Ahn C, Kang SK, Lee BC, Hwang WS. Production of transgenic cloned piglets from genetically transformed fetal fibroblasts selected by green fluorescent protein. Theriogenology 2005; 63:973-91. [PMID: 15710186 DOI: 10.1016/j.theriogenology.2004.04.017] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2004] [Revised: 04/13/2004] [Accepted: 04/19/2004] [Indexed: 10/26/2022]
Abstract
This study was performed to develop a system for porcine somatic cell nuclear transfer (SCNT) and to produce human erythropoietin (hEPO)-transgenic cloned piglets. Porcine fetal fibroblasts were transfected with an expression plasmid (phEPO-GFP). In Experiment 1, the effect of transfection of phEPO-GFP transgene on development of porcine SCNT embryos was investigated. Three fetal fibroblast cell lines (two male and one female) with or without transfected with phEPO-GFP trasngene were used as donor cells for SCNT. Lower fusion rates were observed in two lines of transfected cells as compared to those of the control cells. In Experiment 2, the effect was examined of elevated Ca2+ concentration in the fusion/activation medium on development of transfected SCNT embryos. The rates of fusion and blastocyst formation were significantly increased by supplementing 1.0 mM of CaCl2 (versus 0.1 mM) into the fusion/activation medium. In Experiment 3, the effect was studied of a chemical treatment (cytochalasin B) after electric fusion/activation (F/A) on porcine transgenic SCNT embryo development. The electric F/A + cytochalasin B treatment increased total cell number in blastocysts as compared to that of electric F/A treatment alone. In Experiment 4, transgenic cloned embryos were transferred to surrogate mothers and a total of six cloned piglets were born. Transgenic cloned piglets were confirmed by polymerase chain reaction and Southern blot analysis. From a single surrogate mother, female and male transgenic cloned piglets were produced by transferring pooled SCNT embryos derived from female and male transfected donor cells. In conclusion, a system for porcine SCNT was developed and led to the successful production of hEPO transgenic cloned piglets.
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Affiliation(s)
- Gab Sang Lee
- Department of Theriogenology and Biotechnology, College of Veterinary Medicine, Seoul National University, Sillim-Dong, Kwanak-ku, Seoul 151-742, South Korea
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Nam DH, Lee SH, Kim HS, Lee GS, Jeong YW, Kim S, Kim JH, Kang SK, Lee BC, Hwang WS. The role of gonadotropin-releasing hormone (GnRH) and its receptor in development of porcine preimplantation embryos derived from in vitro fertilization. Theriogenology 2005; 63:190-201. [PMID: 15589284 DOI: 10.1016/j.theriogenology.2004.04.004] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2003] [Revised: 03/30/2004] [Accepted: 04/15/2004] [Indexed: 11/18/2022]
Abstract
This study was performed to investigate the expression of embryo-derived gonadotropin-releasing hormone (GnRH) and its receptor, and to determine the role of GnRH in porcine preimplantation embryos. In Experiment 1, porcine blastocysts derived from in vitro fertilization (IVF) and cultured in North Carolina State University (NCSU)-23 medium were subjected to reverse transcription polymerase chain reaction (RT-PCR) amplification with specific primers for GnRH and its receptor. The results showed that GnRH and its receptor were expressed in porcine IVF blastocysts. In order to investigate the role of GnRH in embryo development, porcine IVF embryos were cultured in NCSU-23 supplemented with different concentrations (0, 0.1, 1, or 10 microM) of a GnRH agonist (leuprolide, Experiment 2) or GnRH antagonist (antide, Experiment 3). Supplementing the culture medium with 0.1 or 1 microM leuprolide increased the rate of blastocyst formation (28.5 or 27.6% versus 20.2%) and mean total cell number (129 versus 104) compared to the control group. In contrast, antide significantly decreased the rate of blastocyst formation [12.6% (0.1 microM), 10.2% (1.0 microM), or 8.9% (10.0 microM) versus 22.8% (control)] and total cell number [69 (1 microM) or 68 (10 microM) versus 104 (control)]. In Experiment 4, porcine IVF embryos were cultured in NCSU-23 medium containing 1 microM antide plus 1 microM leuprolide. The embryotrophic effect of GnRH agonist was reversed by co-supplementing with GnRH antagonist. In conclusion, the present study demonstrated that supplementing a culture medium with GnRH agonist can improve blastocyst formation and the quality of porcine IVF embryos, and that this action was mediated through GnRH receptors.
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Affiliation(s)
- Dong Hyun Nam
- Department of Theriogenology and Biotechnology, College of Veterinary Medicine, Seoul National University, Seoul 151-742, South Korea
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