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Effects of Incubation Time and Method of Cell Cycle Synchronization on Collared Peccary Skin-Derived Fibroblast Cell Lines. ANNALS OF ANIMAL SCIENCE 2021. [DOI: 10.2478/aoas-2020-0103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Abstract
The success of cloning by somatic cell nuclear transfer depends on the efficiency of nuclear reprogramming, with the cycle stage of the donor cell playing a crucial role. Therefore, the aim was to evaluate three different approaches for cell cycle synchronization: (i) serum starvation (SS) for 1 to 4 days, (ii) contact inhibition (CI) for 1 to 3 days, and (iii) using cell cycle regulatory inhibitors (dimethyl sulfoxide, cycloheximide, cytochalasin B, or 6-dimethylaminopurine) for 1 and 2 days, in terms of their effects on synchronization in G0/G1 phases and viability of collared peccary skin fibroblasts. Flow cytometry analysis revealed that SS for 4 days (79.0% ± 1.6) and CI for 3 days (78.0% ± 1.4) increased the percentage of fibroblasts in G0/G1 compared to growing cells GC (68.1% ± 8.6). However, SS for 3 and 4 days reduced the viability evaluated by differential staining (81.4% ± 0.03 and 81.6% ± 0.06) compared to growing cells (GC, 95.9% ± 0.06). CI did not affect the viability at any of the analyzed time intervals. No cell cycle inhibitors promoted synchronization in G0/G1. These results indicate that CI for 3 days was the most efficient method for cell cycle synchronization in peccary fibroblasts.
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He P, Lei J, Miao JN, Wu D, Wang C. Cordyceps sinensis attenuates HBx‑induced cell apoptosis in HK‑2 cells through suppressing the PI3K/Akt pathway. Int J Mol Med 2020; 45:1261-1269. [PMID: 32124952 DOI: 10.3892/ijmm.2020.4503] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Accepted: 01/16/2020] [Indexed: 11/06/2022] Open
Abstract
The authors' previous studies demonstrated that the major renal damage from hepatitis B virus infection is HBx‑induced apoptosis of renal tubular epithelial cells. Cordyceps sinensis is one of the most valuable of traditional Chinese medicines and is extensively used to treat chronic renal diseases. However, there is no research on the potential renal protective effect of C. sinensis on HBx‑induced apoptosis of renal tubular cells. The protective effect and underlying mechanism of C. sinensis were examined using a renal tubular epithelial cell line stably overexpressing HBx. HK‑2 cells were stably transfected with pCMV‑HBx to establish HBx‑overexpression in an in vitro cell model and HK‑2 cells transfected with an empty vector were generated as a control. The effect of C. sinensis on cell proliferation and apoptosis, the phosphatidylinositol‑3‑kinase (PI3K)/protein kinase B (Akt) signaling pathway, and the enzyme activity of caspase‑3 and caspase‑9 was measured. The present study demonstrated that HBx transfection inhibited cell proliferation; increased apoptosis, caspase‑3 and caspase‑9 activity; and increased the activity of the PI3K/Akt pathway. Treatment with C. sinensis attenuated all of these HBx‑induced responses. HBx triggered apoptosis and activated the PI3K/Akt signaling pathway in HK‑2 cells. C. sinensis treatment significantly attenuated the effect of HBx, at least in part by suppressing the PI3K/Akt signaling pathway.
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Affiliation(s)
- Ping He
- Department of Nephrology, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, P.R. China
| | - Jing Lei
- Department of Nephrology, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, P.R. China
| | - Jia-Ning Miao
- Medical Research Center, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, P.R. China
| | - Di Wu
- Medical Research Center, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, P.R. China
| | - Cheng Wang
- Department of Nephrology, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, P.R. China
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Lee J, Lee Y, Lee GS, Lee ST, Lee E. Comparative study of the developmental competence of cloned pig embryos derived from spermatogonial stem cells and fetal fibroblasts. Reprod Domest Anim 2019; 54:1258-1264. [PMID: 31283039 DOI: 10.1111/rda.13507] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2019] [Accepted: 07/04/2019] [Indexed: 01/27/2023]
Abstract
Spermatogonial stem cells (SSC) are promising resources for genetic preservation and restoration of male germ cells in humans and animals. However, no studies have used SSC as donor nuclei in pig somatic cell nuclear transfer (SCNT). This study investigated the potential for use of porcine SSC as a nuclei donor for SCNT and developmental competence of SSC-derived cloned embryos. In addition, demecolcine was investigated to determine whether it could prevent rupture of SSC during SCNT. When the potential of SSC to support embryonic development after SCNT was compared with that of foetal fibroblasts (FF), SSC-derived SCNT embryos showed a higher (p < .05) developmental competence to the blastocyst stage (47.8%) than FF-derived embryos (25.6%). However, when SSC were used as donor nuclei in the SCNT process, cell fusion rates were lower (p < .05) than when FF were used (61.9% vs. 75.8%). Treatment of SSC with demecolcine significantly (p < .05) decreased rupture of SSC during the SCNT procedure (7.5% vs. 18.8%) and increased fusion of cell-oocyte couplets compared with no treatment (74.6% vs. 61.6%). In addition, SSC-derived SCNT embryos showed higher blastocyst formation (48.4%) than FF-derived embryos without (28.4%) and with demecolcine treatment (17.4%), even after demecolcine treatment. Our results demonstrate that porcine SSC are a desirable donor cell type for production of SCNT pig embryos and that demecolcine increases production efficiency of cloned embryos by inhibiting rupture of nuclei donor SSC during SCNT.
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Affiliation(s)
- Joohyeong Lee
- Institute of Veterinary Science, Kangwon National University, Chuncheon, Korea
| | - Yongjin Lee
- College of Veterinary Medicine, Kangwon National University, Chuncheon, Korea
| | - Geun-Shik Lee
- Institute of Veterinary Science, Kangwon National University, Chuncheon, Korea.,College of Veterinary Medicine, Kangwon National University, Chuncheon, Korea
| | - Seung Tae Lee
- College of Animal Life Science, Kangwon National University, Chuncheon, Korea
| | - Eunsong Lee
- Institute of Veterinary Science, Kangwon National University, Chuncheon, Korea.,College of Veterinary Medicine, Kangwon National University, Chuncheon, Korea
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Gómez NA, Ramírez MM, Ruiz-Cortés ZT. PRIMARY FIBROBLAST CELL CYCLE SYNCHRONIZATION AND EFFECTS ON HANDMADE CLONED (HMC) BOVINE EMBRYOS. CIÊNCIA ANIMAL BRASILEIRA 2018. [DOI: 10.1590/1809-6891v19e-48555] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Abstract Spatial and temporal synchrony and compatibility between the receptor oocyte and the donor cell nucleus are necessary for the process of embryo cloning to allow nuclear reprogramming and early embryonic development. The objective of the present study was to evaluate three cell cycle synchronization methods on a primary bovine fibroblast culture for 24, 48, or 72 h. These fibroblasts were used as nuclear donors to evaluate their in vitro developmental potential and the quality of the embryos produced through handmade cloning (HMC). No differences were found between the methods used for fibroblast synchronization in G0/G1 (p > 0.05). Production of clones from fibroblasts in four groups- no treatment at 0 h and using serum restriction SR, high culture confluence HCC, and SR+HCC at 24 h- resulted in high cleavage rates that were not different. Embryo production rates were 37.9%, 29.5%, and 30.9% in the 0h, SR24h, and SR+HHC24h groups, respectively, and 19.3% in the HCC group, which was significantly different from the other three (p < 0.05). There were no differences in the quality parameter among the clones produced with fibroblasts subjected to the different synchronization. Finally, when overall clone production was compared versus parthenotes and IVF embryos, the only difference was between clones and parthenogenetic embryos with zona pellucida (30.2% vs 38.6%). The number of blastomeres from the blastocytes produced through IVF was significantly greater than those from embryos activated parthenogenetically and from clones (117, 80, 75.9, and 67.1, respectively). The evaluation of three synchronization methods at different time points did not demonstrate an increase in the percentage of fibroblasts in the G0/G1 phases of the cell cycle; however, good quality and high cloning rates were obtained, suggesting that it is not always necessary to subject the cells to any synchronization treatments, as they would yield equally good cloning results.
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Hyun H, Lee SE, Son YJ, Shin MY, Park YG, Kim EY, Park SP. Cell Synchronization by Rapamycin Improves the Developmental Competence of Porcine SCNT Embryos. Cell Reprogram 2017; 18:195-205. [PMID: 27253629 DOI: 10.1089/cell.2015.0090] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
The cell cycle stage of donor cells influences the success of somatic cell nuclear transfer (SCNT). This study investigated the effects of rapamycin treatment on synchronization of porcine fibroblasts in comparison with control and serum-starved cells, SCNT donor cell viability, and SCNT-derived embryo development. Porcine fibroblasts were treated with 0.1, 1, 10, and 100 μM rapamycin for 1 or 3 days. The proportion of cells in G0/G1 phase was significantly higher among cells treated with 1 μM rapamycin for 3 days (D3-1R) than among control and serum-starved cells (p < 0.05). In comparison with control cells, rapamycin-treated cells exhibited reduced proliferation, similar to serum-starved cells. The viability (as assessed by the MTT assay) of D3-1R-treated cells was good, similar to control cells, showing their quality was maintained. To confirm nutrient regulation by rapamycin treatment, we checked the transcript levels of nutrient transporter genes (SLC2A2, SLC2A4, SLC6A14, and SLC7A1). These levels were significantly lower in D3-1R-treated cells than in control cells (p < 0.01). We performed SCNT with D3-1R-treated cells (SCNT(D3-1R)) to confirm the effect of cell cycle synchronization by rapamycin treatment. Although SCNT(D3-1R) embryos did not have an increased fusion rate, their cleavage and blastocyst formation rates were significantly higher than those of control embryos (p < 0.05). Regarding embryo quality, the numbers of total and apoptotic cells per blastocyst were increased and decreased, respectively, in SCNT(D3-1R) blastocysts. The mRNA levels of developmental (CDX2 and CDH1) and proapoptotic (FAS and CASP3) genes were significantly higher and lower, respectively, in SCNT(D3-1R) blastocysts than in control blastocysts (p < 0.05). These results demonstrate that rapamycin treatment affects the cell cycle synchronization of donor cells and enhances the developmental potential of porcine SCNT embryos.
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Affiliation(s)
- Hyuk Hyun
- 1 Stem cell Research Center, Jeju National University , Jeju, Jeju Special Self-Governing Province, Korea.,2 Faculty of Biotechnology, College of Applied Life Sciences, Jeju National University , Jeju, Jeju Special Self-Governing Province, Korea
| | - Seung-Eun Lee
- 1 Stem cell Research Center, Jeju National University , Jeju, Jeju Special Self-Governing Province, Korea.,2 Faculty of Biotechnology, College of Applied Life Sciences, Jeju National University , Jeju, Jeju Special Self-Governing Province, Korea
| | - Yeo-Jin Son
- 1 Stem cell Research Center, Jeju National University , Jeju, Jeju Special Self-Governing Province, Korea.,2 Faculty of Biotechnology, College of Applied Life Sciences, Jeju National University , Jeju, Jeju Special Self-Governing Province, Korea
| | - Min-Young Shin
- 1 Stem cell Research Center, Jeju National University , Jeju, Jeju Special Self-Governing Province, Korea.,2 Faculty of Biotechnology, College of Applied Life Sciences, Jeju National University , Jeju, Jeju Special Self-Governing Province, Korea
| | - Yun-Gwi Park
- 1 Stem cell Research Center, Jeju National University , Jeju, Jeju Special Self-Governing Province, Korea.,2 Faculty of Biotechnology, College of Applied Life Sciences, Jeju National University , Jeju, Jeju Special Self-Governing Province, Korea
| | - Eun-Young Kim
- 1 Stem cell Research Center, Jeju National University , Jeju, Jeju Special Self-Governing Province, Korea.,2 Faculty of Biotechnology, College of Applied Life Sciences, Jeju National University , Jeju, Jeju Special Self-Governing Province, Korea.,3 Mirae Cell Bio , Gwangjin-gu, Seoul, Korea
| | - Se-Pill Park
- 1 Stem cell Research Center, Jeju National University , Jeju, Jeju Special Self-Governing Province, Korea.,2 Faculty of Biotechnology, College of Applied Life Sciences, Jeju National University , Jeju, Jeju Special Self-Governing Province, Korea.,3 Mirae Cell Bio , Gwangjin-gu, Seoul, Korea
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Yan B, Zhang Z, Wang X, Ni Y, Liu Y, Liu T, Wang W, Xing H, Sun Y, Wang J, Li XF. PLGA-PTMC-Cultured Bone Mesenchymal Stem Cell Scaffold Enhances Cartilage Regeneration in Tissue-Engineered Tracheal Transplantation. Artif Organs 2016; 41:461-469. [PMID: 27925229 DOI: 10.1111/aor.12805] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2016] [Revised: 06/14/2016] [Accepted: 06/14/2016] [Indexed: 01/19/2023]
Abstract
The treatment of long-segment tracheal defect requires the transplantation of effective tracheal substitute, and the tissue-engineered trachea (TET) has been proposed as an ideal tracheal substitute. The major cause of the failure of segmental tracheal defect reconstruction by TET is airway collapse caused by the chondromalacia of TET cartilage. The key to maintain the TET structure is the regeneration of chondrocytes in cartilage, which can secrete plenty of cartilage matrices. To address the problem of the chondromalacia of TET cartilage, this study proposed an improved strategy. We designed a new cell sheet scaffold using the poly(lactic-co-glycolic acid) (PLGA) and poly(trimethylene carbonate) (PTMC) to make a porous membrane for seeding cells, and used the PLGA-PTMC cell-scaffold to pack the decellularized allogeneic trachea to construct a new type of TET. The TET was then implanted in the subcutaneous tissue for vascularization for 2 weeks. Orthotopic transplantation was then performed after implantation. The efficiency of the TET we designed was analyzed by histological examination and biomechanical analyses 4 weeks after surgery. Four weeks after surgery, both the number of chondrocytes and the amount of cartilage matrix were significantly higher than those contained in the traditional stem-cell-based TET. Besides, the coefficient of stiffness of TET was significantly larger than the traditional TET. This study provided a promising approach for the long-term functional reconstruction of long-segment tracheal defect, and the TET we designed had potential application prospects in the field of TET reconstruction.
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Affiliation(s)
- Bingyang Yan
- Department of Thoracic Surgery, Tangdu Hospital, The Fourth Military Medical University, Xi'an, China
| | - Zhipei Zhang
- Department of Thoracic Surgery, Tangdu Hospital, The Fourth Military Medical University, Xi'an, China
| | - Xiaoping Wang
- Department of Thoracic Surgery, Tangdu Hospital, The Fourth Military Medical University, Xi'an, China
| | - Yunfeng Ni
- Department of Thoracic Surgery, Tangdu Hospital, The Fourth Military Medical University, Xi'an, China
| | - Yongshi Liu
- Department of Thoracic Surgery, Tangdu Hospital, The Fourth Military Medical University, Xi'an, China
| | - Tao Liu
- Department of Thoracic Surgery, Tangdu Hospital, The Fourth Military Medical University, Xi'an, China
| | - Wuping Wang
- Department of Thoracic Surgery, Tangdu Hospital, The Fourth Military Medical University, Xi'an, China
| | - Hao Xing
- Department of Thoracic Surgery, Tangdu Hospital, The Fourth Military Medical University, Xi'an, China
| | - Ying Sun
- Department of Thoracic Surgery, Tangdu Hospital, The Fourth Military Medical University, Xi'an, China
| | - Jian Wang
- Department of Thoracic Surgery, Tangdu Hospital, The Fourth Military Medical University, Xi'an, China
| | - Xiao-Fei Li
- Department of Thoracic Surgery, Tangdu Hospital, The Fourth Military Medical University, Xi'an, China
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Santos ML, Borges AA, Neta LBQ, Santos MV, Oliveira MF, Silva AR, Pereira AF. In vitro culture of somatic cells derived from ear tissue of collared peccary (Pecari tajacu Linnaeus, 1758) in medium with different requirements. PESQUISA VETERINARIA BRASILEIRA 2016. [DOI: 10.1590/s0100-736x2016001200010] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
ABSTRACT: The maintenance of metabolic activities during the in vitro culture of somatic cells of wild animals, especially collared peccary (Pecari tajacu), is an interesting step in conservation of these cells for the use in nuclear transfer. In this context, it is necessary to optimize the culture conditions of somatic cells by the establishment of appropriate supplementation to the media. Therefore, this study aimed to analyze the composition of the culture means of somatic cell derived from ear tissue of collared peccaries, evaluating concentrations of fetal bovine serum (FBS; 10% vs. 20%) and epidermal growth factor (EGF; 5ng/mL vs. 10ng/mL). Tissues were submitted to primary culture and subcultures for 40 days and cells were analyzed for morphology, adhesion, subconfluence, and proliferative activity to develop the growth curve and to determine the population doubling time (PDT), viability, and functional/metabolic activity. No difference was observed between the concentrations of FBS for several parameters, except for viability [FBS10: 85.6% vs. FBS20: 98.2%], PDT [FBS10: 155.4h vs. 77.2h], and functional/metabolic assay [FBS10: 0.57-0.55 vs. FBS20: 0.82-0.99 (D5-D7)]. For the EGF in culture, no difference was observed in the evaluated parameters. In all experiments, the growth curves were typical S-shape and the cells passed through a lag, logarithmic, and plateau phase. In conclusion, 20% FBS is suitable for the recovery of somatic cells; nevertheless, EGF does not improve the quality of growing these cells. To our knowledge, this is the first study culturing somatic cells of collared peccaries.
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8
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Lee JH, Chun JL, Kim KJ, Kim EY, Kim DH, Lee BM, Han KW, Park KS, Lee KB, Kim MK. Effect of Acteoside as a Cell Protector to Produce a Cloned Dog. PLoS One 2016; 11:e0159330. [PMID: 27428333 PMCID: PMC4948914 DOI: 10.1371/journal.pone.0159330] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2016] [Accepted: 06/30/2016] [Indexed: 11/18/2022] Open
Abstract
Somatic cell nuclear transfer (SCNT) is a well-known laboratory technique. The principle of the SCNT involves the reprogramming a somatic nucleus by injecting a somatic cell into a recipient oocyte whose nucleus has been removed. Therefore, the nucleus donor cells are considered as a crucial factor in SCNT. Cell cycle synchronization of nucleus donor cells at G0/G1 stage can be induced by contact inhibition or serum starvation. In this study, acteoside, a phenylpropanoid glycoside compound, was investigated to determine whether it is applicable for inducing cell cycle synchronization, cytoprotection, and improving SCNT efficiency in canine fetal fibroblasts. Primary canine fetal fibroblasts were treated with acteoside (10, 30, 50 μM) for various time periods (24, 48 and 72 hours). Cell cycle synchronization at G0/G1 stage did not differ significantly with the method of induction: acteoside treatment, contact inhibition or serum starvation. However, of these three treatments, serum starvation resulted in significantly increased level of reactive oxygen species (ROS) (99.5 ± 0.3%) and apoptosis. The results also revealed that acteoside reduced ROS and apoptosis processes including necrosis in canine fetal fibroblasts, and improved the cell survival. Canine fetal fibroblasts treated with acteoside were successfully arrested at the G0/G1 stage. Moreover, the reconstructed embryos using nucleus donor cells treated with acteoside produced a healthy cloned dog, but not the embryos produced using nucleus donor cells subjected to contact inhibition. In conclusion, acteoside induced cell cycle synchronization of nucleus donor cells would be an alternative method to improve the efficiency of canine SCNT because of its cytoprotective effects.
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Affiliation(s)
- Ji Hye Lee
- Division of Animal & Dairy Science, College of Agriculture and Life Science, Chungnam National University, Daejeon, Republic of Korea
| | - Ju Lan Chun
- Division of Animal & Dairy Science, College of Agriculture and Life Science, Chungnam National University, Daejeon, Republic of Korea
| | - Keun Jung Kim
- Division of Animal & Dairy Science, College of Agriculture and Life Science, Chungnam National University, Daejeon, Republic of Korea
| | - Eun Young Kim
- Division of Animal & Dairy Science, College of Agriculture and Life Science, Chungnam National University, Daejeon, Republic of Korea
| | - Dong-hee Kim
- Division of Animal & Dairy Science, College of Agriculture and Life Science, Chungnam National University, Daejeon, Republic of Korea
| | - Bo Myeong Lee
- Division of Animal & Dairy Science, College of Agriculture and Life Science, Chungnam National University, Daejeon, Republic of Korea
| | - Kil Woo Han
- Division of Animal & Dairy Science, College of Agriculture and Life Science, Chungnam National University, Daejeon, Republic of Korea
| | - Kang-Sun Park
- Division of Animal & Dairy Science, College of Agriculture and Life Science, Chungnam National University, Daejeon, Republic of Korea
| | - Kyung-Bon Lee
- Department of Biology Education, College of Education, Chonnam National University, Gwangju, Republic of Korea
| | - Min Kyu Kim
- Division of Animal & Dairy Science, College of Agriculture and Life Science, Chungnam National University, Daejeon, Republic of Korea
- * E-mail:
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Fricke S, Pfefferkorn C, Wolf D, Riemschneider S, Kohlschmidt J, Hilger N, Fueldner C, Knauer J, Sack U, Emmrich F, Lehmann J. Characterization of the murine myeloid precursor cell line MuMac-E8. PLoS One 2014; 9:e113743. [PMID: 25546418 PMCID: PMC4278753 DOI: 10.1371/journal.pone.0113743] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2014] [Accepted: 10/30/2014] [Indexed: 12/15/2022] Open
Abstract
Starting point for the present work was the assumption that the cell line MuMac-E8 represents a murine cell population with stem cell properties. Preliminary studies already pointed to the expression of stem-cell associated markers and a self-regenerative potential of the cells. The cell line MuMac-E8 should be examined for their differential stage within stem cell hierarchy. MuMac-E8 cells were derived from a chimeric mouse model of arthritis. It could be shown that MuMac-E8 cells express mRNA of some genes associated with pluripotent stem cells (Nanog, Nucleostemin), of genes for hematopoietic markers (EPCR, Sca-1, CD11b, CD45), for the mesenchymal marker CD105 and of genes for the neural markers Pax-6 and Ezrin. In methylcellulose and May-Grünwald-Giemsa staining, hematopoietic colonies were obtained but the hematopoietic system of lethally irradiated mice could not be rescued. Osteogenic differentiation was not detectable. Thus, it became evident that MuMac-E8 represents not a stem cell line. However, MuMac-E8 cells expressed several myeloid surface markers (i.e. CD11b, F4/80, CD14, CD64), showed phagocytosis and is capable of producing nitric oxide. Thus, this cell line seems to be arrested an advanced stage of myeloid differentiation. Adherence data measured by impedance-based real-time cell analysis together with cell morphology data suggested that MuMac-E8 represents a new macrophage precursor cell line exhibiting weak adherence. This cell line is suitable as an in-vitro model for testing of macrophage functions. Moreover, it might be also useful for differentiation or reprogramming studies.
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Affiliation(s)
- Stephan Fricke
- Fraunhofer Institute for Cell Therapy and Immunology (IZI), Leipzig, Germany
- Institute of Clinical Immunology, University of Leipzig, Leipzig, Germany
- Translational Centre for Regenerative Medicine, University of Leipzig, Leipzig, Germany
| | | | - Doris Wolf
- Fraunhofer Institute for Cell Therapy and Immunology (IZI), Leipzig, Germany
- Department of Surgery, Research Laboratories, University of Leipzig, Leipzig, Germany
| | - Sina Riemschneider
- Fraunhofer Institute for Cell Therapy and Immunology (IZI), Leipzig, Germany
| | - Janine Kohlschmidt
- Fraunhofer Institute for Cell Therapy and Immunology (IZI), Leipzig, Germany
| | - Nadja Hilger
- Fraunhofer Institute for Cell Therapy and Immunology (IZI), Leipzig, Germany
| | - Christiane Fueldner
- Fraunhofer Institute for Cell Therapy and Immunology (IZI), Leipzig, Germany
| | - Jens Knauer
- Fraunhofer Institute for Cell Therapy and Immunology (IZI), Leipzig, Germany
| | - Ulrich Sack
- Fraunhofer Institute for Cell Therapy and Immunology (IZI), Leipzig, Germany
- Institute of Clinical Immunology, University of Leipzig, Leipzig, Germany
- Translational Centre for Regenerative Medicine, University of Leipzig, Leipzig, Germany
| | - Frank Emmrich
- Fraunhofer Institute for Cell Therapy and Immunology (IZI), Leipzig, Germany
- Institute of Clinical Immunology, University of Leipzig, Leipzig, Germany
- Translational Centre for Regenerative Medicine, University of Leipzig, Leipzig, Germany
| | - Jörg Lehmann
- Fraunhofer Institute for Cell Therapy and Immunology (IZI), Leipzig, Germany
- * E-mail:
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10
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Saini M, Selokar NL, Revey T, Singla SK, Chauhan MS, Palta P, Madan P. Trichostatin A alters the expression of cell cycle controlling genes and microRNAs in donor cells and subsequently improves the yield and quality of cloned bovine embryos in vitro. Theriogenology 2014; 82:1036-42. [PMID: 25151601 DOI: 10.1016/j.theriogenology.2014.07.027] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2014] [Revised: 06/16/2014] [Accepted: 07/19/2014] [Indexed: 01/07/2023]
Abstract
Trichostatin A (TSA), a histone deacetylase inhibitor, has been used to improve nuclear reprogramming in somatic cell nuclear transfer embryos. However, the molecular mechanism of TSA for the improvement of the pre- and postimplantation embryonic development is unknown. In the present study, we investigated mechanism of cell cycle arrest caused by TSA and also determined embryo quality and gene expression in cloned bovine embryos produced from TSA-treated donor cells compared with embryos produced by in vitro fertilization or parthenogenetic activation. We observed that, 50 nM TSA-treated cells were synchronized at G0/G1 stage with concomitant decrease in the proportion of these cells in the S stage of the cell cycle, which was also supported by significant changes in cell morphology and decreased proliferation (P<0.05). Measurement of relative expression using real-time polymerase chain reaction of a some cell cycle-related genes and microRNAs in treated donor cells showed decreased expression of HDAC1, DNMT1, P53, CYC E1, and CDK4 and increased expression of DNMT3a, CDKN1A, CDK2, CDK3, miR-15a, miR-16, and miR-34a (P<0.05). No change in the relative expression of miR-449a was noticed. Trichostatin A treatment of donor cells significantly improved both cleavage and blastocyst rate (P<0.05) compared with the control embryos, also apoptotic index in treated cloned blastocysts was significantly decreased compared with the nontreated blastocysts (P<0.05) and was at the level of IVF counterpart. Relative expression of HDAC1 and DNMT3a was significantly lower in treated cloned and parthenogenetic embryos than that of nontreated and IVF counterpart, whereas in case of P53, expression level between treated and IVF embryos was similar, which was significantly lower than nontreated cloned and parthenogenetic embryos. In conclusion, our data suggested that TSA improves yield and quality of cloned bovine embryos by modulating the expression of G0/G1 cell cycle stage-related microRNA in donor cells, which support that TSA might be great cell cycle synchronizer apart from potent epigenetic modulator in cloning research in future.
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Affiliation(s)
- M Saini
- Department of Biomedical Sciences, Ontario Veterinary College, Guelph, Canada; Animal Biotechnology Centre, National Dairy Research Institute, Karnal, India
| | - N L Selokar
- Division of Animal Physiology and Reproduction, Central Institute for Research on Buffaloes, Hisar, India
| | - T Revey
- Department of Biomedical Sciences, Ontario Veterinary College, Guelph, Canada
| | - S K Singla
- Animal Biotechnology Centre, National Dairy Research Institute, Karnal, India
| | - M S Chauhan
- Animal Biotechnology Centre, National Dairy Research Institute, Karnal, India
| | - P Palta
- Animal Biotechnology Centre, National Dairy Research Institute, Karnal, India
| | - P Madan
- Department of Biomedical Sciences, Ontario Veterinary College, Guelph, Canada.
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11
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Selokar NL, Saini M, Muzaffer M, Krishnakanth G, Saha AP, Chauhan MS, Manik R, Palta P, Madan P, Singla SK. Roscovitine Treatment Improves Synchronization of Donor Cell Cycle in G0/G1 Stage and In Vitro Development of Handmade Cloned Buffalo (Bubalus bubalis) Embryos. Cell Reprogram 2012; 14:146-54. [DOI: 10.1089/cell.2011.0076] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Naresh L. Selokar
- Animal Biotechnology Centre, National Dairy Research Institute, Karnal, India
- Department of Biomedical Sciences, Ontario Veterinary College, Guelph, Canada
| | - Monika Saini
- Animal Biotechnology Centre, National Dairy Research Institute, Karnal, India
| | - Mushariffa Muzaffer
- Animal Biotechnology Centre, National Dairy Research Institute, Karnal, India
| | - G. Krishnakanth
- Animal Biotechnology Centre, National Dairy Research Institute, Karnal, India
| | - Ambika P. Saha
- Animal Biotechnology Centre, National Dairy Research Institute, Karnal, India
| | - Manmohan S. Chauhan
- Animal Biotechnology Centre, National Dairy Research Institute, Karnal, India
| | - Radheysham Manik
- Animal Biotechnology Centre, National Dairy Research Institute, Karnal, India
| | - Prabhat Palta
- Animal Biotechnology Centre, National Dairy Research Institute, Karnal, India
| | - Pavneesh Madan
- Department of Biomedical Sciences, Ontario Veterinary College, Guelph, Canada
| | - Suresh K. Singla
- Animal Biotechnology Centre, National Dairy Research Institute, Karnal, India
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Uma Mahesh Y, Rao BS, Katari VC, Komjeti S, Christo D, Lakshmikantan U, Pawar RM, Shivaji S. Cell Cycle Synchronization of Bison (Bos Gaurus) Fibroblasts Derived from Ear Piece Collected Post-mortem. Reprod Domest Anim 2011; 47:799-805. [DOI: 10.1111/j.1439-0531.2011.01970.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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ZHANG TY, DAI JJ, WU CF, GU XL, LIU L, WU ZQ, XIE YN, WU B, CHEN HL, LI Y, CHEN XJ, ZHANG DF. Positive effects of treatment of donor cells with aphidicolin on the preimplantation development of somatic cell nuclear transfer embryos in Chinese Bama mini-pig (Sus Scrofa). Anim Sci J 2011; 83:103-10. [DOI: 10.1111/j.1740-0929.2011.00926.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Park HJ, Koo OJ, Kwon DK, Kang JT, Jang G, Lee BC. Effect of roscovitine-treated donor cells on development of porcine cloned embryos. Reprod Domest Anim 2011; 45:1082-8. [PMID: 19602177 DOI: 10.1111/j.1439-0531.2009.01499.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Synchronization of the donor cell cycle is an important factor for successful animal cloning by nuclear transfer. To improve the efficiency of porcine cloning, in the present report, we evaluated effects of contact inhibition, serum starvation and roscovitine treatment of donor cells on in vitro and in vivo developmental potency of cloned porcine embryos. Fibroblasts derived from a porcine foetus at day 30 of gestation were isolated and cultured to 70% confluency. Then, cells were either cultured to 100% confluency for contact inhibition, or cultured in 0.5% serum for 72 h for serum starvation or with 15 μM roscovitine for 24 h. Cells were most effectively synchronized at G0/G1 in the serum starvation group (87.5%) compared with the contact inhibition and roscovitine treatment groups (76.3% and 79.9% respectively p < 0.05). However, after somatic cell nuclear transfer followed by in vitro culture, the serum starvation group showed a significantly lower blastocyst formation rate (5.6%) compared with the contact inhibition and roscovitine treatment groups (11.6% and 20.0% respectively). Differential expression of apoptosis-related genes and the level of apoptosis in each treatment group explain the variation in developmental competence among the groups. Significantly higher level of apoptosis was observed in the serum starvation group. On the other hand, the roscovitine treatment group shows the lowest level of apoptosis and the best in vitro development among the groups. Cloned embryos derived from roscovitine-treated donor cells were transferred to surrogate pigs. Three healthy live piglets were produced. In conclusion, we suggest that roscovitine treatment of donor cells improves development of cloned porcine embryos and can raise the efficiency of cloned piglet production.
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Affiliation(s)
- H J Park
- Department of Theriogenology and Biotechnology, College of Veterinary Medicine, Seoul National University, Seoul, Korea
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Cryobanking the genetic diversity in the critically endangered Iberian lynx (Lynx pardinus) from skin biopsies. Investigating the cryopreservation and culture ability of highly valuable explants and cells. Cryobiology 2011; 62:145-51. [DOI: 10.1016/j.cryobiol.2011.02.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2010] [Accepted: 02/01/2011] [Indexed: 11/20/2022]
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16
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Effect of culture media on porcine embryos produced by in vitro fertilization or parthenogenetic activation after oocyte maturation with cycloheximide. ZYGOTE 2011; 19:331-7. [DOI: 10.1017/s0967199410000614] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
SummaryThis study evaluated the effects of reversible meiotic inhibition and different culture media (PZM3 or NCSU23) on production of porcine embryos by either in vitro fertilization (IVF) or parthenogenetic activation (PA). Oocytes from abattoir-derived ovaries were allocated into two groups for maturation: CHX (5 μg/ml cycloheximide for 10 h) or Control (no CHX). The percentage of metaphase II (MII) oocytes was determined at 36, 40 or 44 h of in vitro maturation. For IVF and PA, denuded oocytes were fertilized with purified sperm for 6 h or activated by electric stimuli. Zygotes were then subdivided into two culture groups: NCSU23 or PZM3. No effect of treatment with CHX and culture media was observed on cleavage (D3) and blastocyst (D7) rates in IVF and PA groups. There are no differences of quality or development rates between IVF-derived embryos cultured in NCSU23 or PZM3. However, we observed high quality PA embryos in PZM3 compared with NCSU23. Maturation arrest with CHX decreased the average blastocyst cell number in IVF while it was increased in PA embryos. As older oocytes are more effectively activated, CHX– blocked oocytes reached the mature stage faster than the control group. In conclusion, the CHX treatment for 10 h, followed by oocyte maturation for 40 h, is an efficient protocol to produce high quality parthenote embryos, especially when they are cultured in PZM3. However, this protocol is not satisfactory for IVF embryos production. In this case, a shorter maturation period could provide better embryo quality.
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Sucularli C, Senturk S, Ozturk M, Konu O. Dose- and time-dependent expression patterns of zebrafish orthologs of selected E2F target genes in response to serum starvation/replenishment. Mol Biol Rep 2010; 38:4111-23. [PMID: 21116857 DOI: 10.1007/s11033-010-0531-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2010] [Accepted: 11/15/2010] [Indexed: 10/18/2022]
Abstract
Targets of E2F transcription factors effectively regulate the cell cycle from worms to humans. Furthermore, the dysregulation of E2F transcription modules plays a highly conserved role in cancers of human and zebrafish. Studying E2F target expression under a given cellular state, such as quiescence, might lead to a better understanding of the conserved patterns of expression in different taxa. In the present study, we used literature searches and phylogeny to identify several targets of E2F transcription factors that are known to be serum-responsive; namely, PCNA, MYBL2, MCM7, TYMS, and CTGF. The transcriptional serum response of zebrafish orthologs of these genes were quantified under different doses (i.e., 0, 0.1, 1, 3, and 10% FBS) and time points (i.e., 6, 24 and 48 hours, h) using quantitative RT-PCR (qRT-PCR) in the zebrafish fibroblast cells (ZF4). Our results indicated that mRNA expression of zebrafish pcna, mybl2, mcm7 and tyms drastically decreased while that of ctgf increased with decreasing serum levels as observed in mammals. These genes responded to serum starvation at 24 and 48 h and to the mitogenic stimuli as early as 6 h except for ctgf whose expression was significantly altered at 24 h. The zebrafish Mcm7 protein levels also were modulated by serum starvation/replenishment. The present study provides a foundation for the comparative analysis of quantitative expression patterns for genes involved in regulation of cell cycle using a zebrafish serum response model.
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Affiliation(s)
- Ceren Sucularli
- Department of Molecular Biology and Genetics, Faculty of Science, Bilkent University, 06800, Ankara, Turkey
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de Barros FRO, Goissis MD, Caetano HVA, Paula-Lopes FF, Peres MA, Assumpção MEOA, Visintin JA. Serum Starvation and Full Confluency for Cell Cycle Synchronization of Domestic Cat (Felis catus) Foetal Fibroblasts. Reprod Domest Anim 2010; 45:38-41. [DOI: 10.1111/j.1439-0531.2008.01201.x] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Gerger R, Ribeiro E, Forell F, Bertolini L, Rodrigues J, Ambrsio C, Miglino M, Mezzalira A, Bertolini M. In vitro development of cloned bovine embryos produced by handmade cloning using somatic cells from distinct levels of cell culture confluence. GENETICS AND MOLECULAR RESEARCH 2010; 9:295-302. [DOI: 10.4238/vol9-1gmr690] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Abstract
SummaryCycle synchronization of donor cells in the G0/G1stage is a crucial step for successful somatic cell nuclear transfer. In the present report, we evaluated the effects of contact inhibition, serum starvation and the reagents – dimethyl sulphoxide (DMSO), roscovitine and cycloheximide (CHX) – on synchronization of canine fibroblasts at the G0/G1stage. Ear fibroblast cells were collected from a beagle dog, placed into culture and used for analysis at passages three to eight. The population doubling time was 36.5 h. The proportion of G0/G1cells was significantly increased by contact inhibition (77.1%) as compared with cycling cells (70.1%); however, extending the duration of culture did not induce further synchronization. After 24 h of serum starvation, cells were effectively synchronized at G0/G1(77.1%). Although synchronization was further increased gradually after 24 h and even showed significant difference after 72 h (82.8%) of starvation, the proportion of dead cells also significantly increased after 24 h. The percentage of cells at the G0/G1phase was increased (as compared with controls) after 72 h treatment with DMSO (76.1%) and after 48 h treatment with CHX (73.0%) or roscovitine (72.5%). However, the rate of cell death was increased after 24 and 72 h of treatment with DMSO and CHX, respectively. Thus, we recommend the use of roscovitine for cell cycle synchronization of canine ear fibroblasts as a preparatory step for SCNT.
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