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Chandrasekaran V, Wellens S, Bourguignon A, Djidrovski I, Fransen L, Ghosh S, Mazidi Z, Murphy C, Nunes C, Singh P, Zana M, Armstrong L, Dinnyés A, Grillari J, Grillari-Voglauer R, Leonard MO, Verfaillie C, Wilmes A, Zurich MG, Exner T, Jennings P, Culot M. Evaluation of the impact of iPSC differentiation protocols on transcriptomic signatures. Toxicol In Vitro 2024; 98:105826. [PMID: 38615723 DOI: 10.1016/j.tiv.2024.105826] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2024] [Accepted: 04/09/2024] [Indexed: 04/16/2024]
Abstract
Human induced pluripotent stem cells (iPSC) have the potential to produce desired target cell types in vitro and allow for the high-throughput screening of drugs/chemicals at population level thereby minimising the cost of drug discovery and drug withdrawals after clinical trials. There is a substantial need for the characterisation of the iPSC derived models to better understand and utilise them for toxicological relevant applications. In our study, iPSC (SBAD2 or SBAD3 lines obtained from StemBANCC project) were differentiated towards toxicologically relevant cell types: alveolar macrophages, brain capillary endothelial cells, brain cells, endothelial cells, hepatocytes, lung airway epithelium, monocytes, podocytes and renal proximal tubular cells. A targeted transcriptomic approach was employed to understand the effects of differentiation protocols on these cell types. Pearson correlation and principal component analysis (PCA) separated most of the intended target cell types and undifferentiated iPSC models as distinct groups with a high correlation among replicates from the same model. Based on PCA, the intended target cell types could also be separated into the three germ layer groups (ectoderm, endoderm and mesoderm). Differential expression analysis (DESeq2) presented the upregulated genes in each intended target cell types that allowed the evaluation of the differentiation to certain degree and the selection of key differentiation markers. In conclusion, these data confirm the versatile use of iPSC differentiated cell types as standardizable and relevant model systems for in vitro toxicology.
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Affiliation(s)
- Vidya Chandrasekaran
- Division of Molecular and Computational Toxicology, Department of Chemistry and Pharmaceutical Sciences, Amsterdam Institute for Molecules, Medicines and Systems, Vrije Universiteit Amsterdam, De Boelelaan 1108, 1081HZ Amsterdam, the Netherlands
| | - Sara Wellens
- University of Artois, UR 2465, Laboratoire de la Barrière Hémato-Encéphalique (LBHE), Faculté des sciences Jean Perrin, Rue Jean Souvraz SP18, F-62300 Lens, France
| | - Aurore Bourguignon
- BioTalentum Ltd, Gödöllő, Hungary; Department of Physiology and Animal Health, Institute of Physiology and Animal Nutrition, Hungarian University of Agriculture and Life Sciences, H-2100, Gödöllő, Hungary
| | - Ivo Djidrovski
- Biosciences Institute, Faculty of Medical Sciences, Newcastle University, UK
| | - Leonie Fransen
- Toxicology Department, Radiation, Chemical and Environmental Hazards (RCE) Directorate, UK Health Security Agency, Harwell Campus, OX11 0RQ, UK
| | - Sreya Ghosh
- Department of Development and Regeneration, Stem Cell Institute, KU Leuven, Leuven, Belgium
| | - Zahra Mazidi
- Evercyte GmbH, Vienna, Austria; Institute of Molecular Biotechnology, University of Natural Resources and Life Sciences, Vienna, Austria
| | - Cormac Murphy
- Division of Molecular and Computational Toxicology, Department of Chemistry and Pharmaceutical Sciences, Amsterdam Institute for Molecules, Medicines and Systems, Vrije Universiteit Amsterdam, De Boelelaan 1108, 1081HZ Amsterdam, the Netherlands
| | - Carolina Nunes
- Department of Biomedical Sciences, University of Lausanne, Lausanne, Switzerland; Swiss Centre for Applied Human Toxicology (SCAHT), University of Basel, Basel, Switzerland
| | - Pranika Singh
- Edelweiss Connect GmbH, Technology Park Basel, Hochbergerstrasse 60C, 4057 Basel, Switzerland; Division of Molecular and Systems Toxicology, Department of Pharmaceutical Sciences, University of Basel, Klingelbergstrasse 50, 4056 Basel, Switzerland
| | | | - Lyle Armstrong
- Biosciences Institute, Faculty of Medical Sciences, Newcastle University, UK
| | - András Dinnyés
- BioTalentum Ltd, Gödöllő, Hungary; Department of Physiology and Animal Health, Institute of Physiology and Animal Nutrition, Hungarian University of Agriculture and Life Sciences, H-2100, Gödöllő, Hungary
| | - Johannes Grillari
- Institute of Molecular Biotechnology, University of Natural Resources and Life Sciences, Vienna, Austria; Ludwig Boltzmann Institute for Traumatology in cooperation with AUVA, Vienna, Austria
| | | | - Martin O Leonard
- Toxicology Department, Radiation, Chemical and Environmental Hazards (RCE) Directorate, UK Health Security Agency, Harwell Campus, OX11 0RQ, UK
| | - Catherine Verfaillie
- Department of Development and Regeneration, Stem Cell Institute, KU Leuven, Leuven, Belgium
| | - Anja Wilmes
- Division of Molecular and Computational Toxicology, Department of Chemistry and Pharmaceutical Sciences, Amsterdam Institute for Molecules, Medicines and Systems, Vrije Universiteit Amsterdam, De Boelelaan 1108, 1081HZ Amsterdam, the Netherlands
| | - Marie-Gabrielle Zurich
- Department of Biomedical Sciences, University of Lausanne, Lausanne, Switzerland; Swiss Centre for Applied Human Toxicology (SCAHT), University of Basel, Basel, Switzerland
| | | | - Paul Jennings
- Division of Molecular and Computational Toxicology, Department of Chemistry and Pharmaceutical Sciences, Amsterdam Institute for Molecules, Medicines and Systems, Vrije Universiteit Amsterdam, De Boelelaan 1108, 1081HZ Amsterdam, the Netherlands.
| | - Maxime Culot
- University of Artois, UR 2465, Laboratoire de la Barrière Hémato-Encéphalique (LBHE), Faculté des sciences Jean Perrin, Rue Jean Souvraz SP18, F-62300 Lens, France.
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Rezania MA, Eghtedari A, Taha MF, Ardekani AM, Javeri A. A novel role for aspirin in enhancing the reprogramming function of miR-302/367 cluster and breast tumor suppression. J Cell Biochem 2022; 123:1077-1090. [PMID: 35535453 DOI: 10.1002/jcb.30264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Revised: 04/04/2022] [Accepted: 04/07/2022] [Indexed: 11/06/2022]
Abstract
Recent studies have provided evidence for tumor suppressive function of the embryonic stem cell-specific miR-302/367 cluster through induction of a reprogramming process. Aspirin has been found to induce reprogramming factors of mesenchymal-to-epithelial transition in breast cancer cells. Therefore, we aimed to investigate whether overexpression of miR-302/367 cluster and aspirin treatment cooperate in the induction of reprogramming and tumor suppression in breast cancer cells. MDA-MB-231 and SK-BR-3 human breast cancer cell lines were transfected with a miR-302/367 expressing vector and treated with aspirin. The cells were evaluated for indices of apoptosis, proliferation, migration, and invasion. In both cell lines, treatment of miR-302/367-transfected cells with aspirin upregulated expression of some main pluripotency factors such as OCT4, SOX2, NANOG, and KLF4, and downregulated expression of some invasion and angiogenesis markers at gene and protein levels. Aspirin increased the apoptotic rate in both cell lines transfected with miR-302/367. Both miR-302/367 and aspirin upregulated the expression of FOXD3 protein which is a known inducer of OCT4 and NANOG. Our results demonstrate that aspirin can enhance miR-302/367-induced reprogramming of breast cancer cells possibly through upregulation of FOXD3 expression. This can further augment the reversal of epithelial-mesenchymal transition and inhibits migration, invasion, and angiogenic signaling in breast cancer cells reprogrammed by miR-302/367. Therefore, aspirin may serve as a useful adjuvant for reprogramming of cancer cells.
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Affiliation(s)
- Mohammad A Rezania
- Department of Stem Cells and Regenerative Medicine, Institute for Medical Biotechnology, National Institute of Genetic Engineering and Biotechnology (NIGEB), Tehran, Iran
| | - Azadeh Eghtedari
- Department of Stem Cells and Regenerative Medicine, Institute for Medical Biotechnology, National Institute of Genetic Engineering and Biotechnology (NIGEB), Tehran, Iran
| | - Masoumeh F Taha
- Department of Stem Cells and Regenerative Medicine, Institute for Medical Biotechnology, National Institute of Genetic Engineering and Biotechnology (NIGEB), Tehran, Iran
| | | | - Arash Javeri
- Department of Stem Cells and Regenerative Medicine, Institute for Medical Biotechnology, National Institute of Genetic Engineering and Biotechnology (NIGEB), Tehran, Iran
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Malvicini R, Santa-Cruz D, Pacienza N, Yannarelli G. OCT4 Silencing Triggers Its Epigenetic Repression and Impairs the Osteogenic and Adipogenic Differentiation of Mesenchymal Stromal Cells. Int J Mol Sci 2019; 20:ijms20133268. [PMID: 31277213 PMCID: PMC6651015 DOI: 10.3390/ijms20133268] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2019] [Revised: 05/21/2019] [Accepted: 06/11/2019] [Indexed: 12/25/2022] Open
Abstract
Mechanisms mediating mesenchymal stromal/stem cells’ (MSCs) multipotency are unclear. Although the expression of the pluripotency factor OCT4 has been detected in MSCs, whether it has a functional role in adult stem cells is still controversial. We hypothesized that a physiological expression level of OCT4 is important to regulate MSCs’ multipotency and trigger differentiation in response to environmental signals. Here, we specifically suppressed OCT4 in MSCs by using siRNA technology before directed differentiation. OCT4 expression levels were reduced by 82% in siOCT4-MSCs, compared with controls. Interestingly, siOCT4-MSCs also presented a hypermethylated OCT4 promoter. OCT4 silencing significantly impaired the ability of MSCs to differentiate into osteoblasts. Histologic and macroscopic analysis showed a lower degree of mineralization in siOCT4-MSCs than in controls. Moreover, OCT4 silencing prevented the up-regulation of osteoblast lineage-associated genes during differentiation. Similarly, OCT4 silencing resulted in decreased MSC differentiation potential towards the adipogenic lineage. The accumulation of lipids was reduced 3.0-fold in siOCT4-MSCs, compared with controls. The up-regulation of genes engaged in the early stages of adipogenesis was also suppressed in siOCT4-MSCs. Our findings provide evidence of a functional role for OCT4 in MSCs and indicate that a basal expression of this transcription factor is essential for their multipotent capacity.
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Affiliation(s)
- Ricardo Malvicini
- Laboratorio de Regulación Génica y Células Madre, Instituto de Medicina Traslacional, Trasplante y Bioingeniería (IMeTTyB), Universidad Favaloro-CONICET, Solís 453, Buenos Aires 1078, Argentina
| | - Diego Santa-Cruz
- Laboratorio de Regulación Génica y Células Madre, Instituto de Medicina Traslacional, Trasplante y Bioingeniería (IMeTTyB), Universidad Favaloro-CONICET, Solís 453, Buenos Aires 1078, Argentina
| | - Natalia Pacienza
- Laboratorio de Regulación Génica y Células Madre, Instituto de Medicina Traslacional, Trasplante y Bioingeniería (IMeTTyB), Universidad Favaloro-CONICET, Solís 453, Buenos Aires 1078, Argentina
| | - Gustavo Yannarelli
- Laboratorio de Regulación Génica y Células Madre, Instituto de Medicina Traslacional, Trasplante y Bioingeniería (IMeTTyB), Universidad Favaloro-CONICET, Solís 453, Buenos Aires 1078, Argentina.
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4
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Boldrini L, Bartoletti R, Giordano M, Manassero F, Selli C, Panichi M, Galli L, Farci F, Faviana P. C-MYC, HIF-1α, ERG, TKT, and GSTP1: an Axis in Prostate Cancer? Pathol Oncol Res 2018; 25:1423-1429. [PMID: 30357756 DOI: 10.1007/s12253-018-0479-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/29/2018] [Accepted: 10/04/2018] [Indexed: 12/13/2022]
Abstract
To analyze putative biomarkers for prostate cancer (PCA) characterization, the second leading cause of cancer-associated mortality in men. Quantification of the expression level of c-myc and HIF-1α was performed in 72 prostate cancer specimens. A cohort of 497 prostate cancer patients from The Cancer Genome Atlas (TCGA) database was further analyzed, in order to test our hypothesis. We found that high c-myc level was significantly associated with HIF-1α elevated expression (p = 0.008) in our 72 samples. Statistical analysis of 497 TCGA prostate cancer specimens confirmed the strong association (p = 0.0005) of c-myc and HIF-1α expression levels, as we found in our series. Moreover, we found high c-myc levels significantly associated with low Glutatione S-transferase P1 (GSTP1) expression (p = 0.01), with high Transketolase (TKT) expression (p < 0.0001). High TKT levels were found in TCGA samples with low GSTP1 mRNA (p < 0.0001), as shown for c-myc, and with ERG increased expression (p = 0.02). Finally, samples with low GSTP1 expression displayed higher ERG mRNA levels than samples with high GSTP1 score (p < 0.0001), as above shown for c-myc. Our study emphasizes the notion of a potential value of HIF-1α and c-myc as putative biomarkers in prostate cancer; moreover TCGA data analysis showed a putative crosstalk between c-myc, HIF-1α, ERG, TKT, and GSTP1, suggesting a potential use of this axis in prostate cancer.
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Affiliation(s)
- L Boldrini
- Department of Surgical, Medical, Molecular Pathology and Critical Area, University of Pisa, Via Roma 57, 56126, Pisa, Italy.
| | - R Bartoletti
- Department of Translational Research and New Technologies, University of Pisa, Pisa, Italy
| | - M Giordano
- Department of Surgical, Medical, Molecular Pathology and Critical Area, University of Pisa, Via Roma 57, 56126, Pisa, Italy
| | - F Manassero
- Division of Urology, Pisa University, Pisa, Italy
| | - C Selli
- Department of Translational Research and New Technologies, University of Pisa, Pisa, Italy
| | - M Panichi
- Department of Radiotherapy, Pisa University, Pisa, Italy
| | - L Galli
- Division of Medical Oncology, Pisa University, Pisa, Italy
| | - F Farci
- Department of Surgical, Medical, Molecular Pathology and Critical Area, University of Pisa, Via Roma 57, 56126, Pisa, Italy
| | - P Faviana
- Department of Surgical, Medical, Molecular Pathology and Critical Area, University of Pisa, Via Roma 57, 56126, Pisa, Italy
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Salama E, Eldeen GN, Abdel Rasheed M, Abdel Atti S, Elnoury A, Taha T, Azmy O. Differentially expressed genes: OCT-4, SOX2, STAT3, CDH1 and CDH2, in cultured mesenchymal stem cells challenged with serum of women with endometriosis. J Genet Eng Biotechnol 2017; 16:63-69. [PMID: 30647706 PMCID: PMC6296653 DOI: 10.1016/j.jgeb.2017.10.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2017] [Accepted: 10/05/2017] [Indexed: 02/07/2023]
Abstract
Endometriosis is a common chronic gynecological disorder defined as the presence of ectopic functional endometrial tissues, outside uterine cavity, primarily on the pelvic peritoneum and the ovaries. Several studies revealed a correlation between aberrant stem-cell activity in the endometrium and endometriosis. Yet the molecular and cellular behaviors of mesnchymal stem cells in development of endometriosis are hampered by lack of invitro experiments. Our aim was to explore morphological and molecular changes associated with mesenchymal stem cells (MSCs) exposition to serum derived from women with severe endometriosis. Two cell cultures of MSCs isolated from endometrial tissues of two endometriosis-free women. Each cell culture was treated individually with the serum of women with endometriosis (experimental group/n = 7), and serum of women without endometriosis (control group/ n = 4) for 14 days. Quantitative Real-Time PCR was performed later to reveal expression of OCT-4, CDH1 and CDH2, STAT3 and SOX2 genes. Morphologically, cells showed no significant changes. However from molecular point of view, we found increased expression in OCT-4, CDH1 and CDH2. For STAT3 and SOX2 we did not find a significant difference. This study shows that endometriosis serum induced molecular changes in human endometrial MSCs (EnMSCs) that might be related to altered cell behavior which may be a step in differentiation that may be completed invivo by other factors to complete the process of transition. Further researches are needed for optimization to reach differentiation.
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Affiliation(s)
- Ehab Salama
- Department of Reproductive Health Research, National Research Centre, Cairo, Egypt.,Stem Cell Research group, Medical Research Centre of Excellence, National Research Centre, Cairo, Egypt
| | - Ghada Nour Eldeen
- Department of Molecular Genetics and Enzymology, National Research Centre, Cairo, Egypt.,Stem Cell Research group, Medical Research Centre of Excellence, National Research Centre, Cairo, Egypt
| | - Mazen Abdel Rasheed
- Department of Reproductive Health Research, National Research Centre, Cairo, Egypt.,Stem Cell Research group, Medical Research Centre of Excellence, National Research Centre, Cairo, Egypt
| | - Sahar Abdel Atti
- Department of Chemical Pathology, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Amr Elnoury
- Department of Medical Applications of Laser, National Institute of Laser Enhanced Sciences, Cairo University, Cairo, Egypt
| | - Tamer Taha
- Department of Reproductive Health Research, National Research Centre, Cairo, Egypt
| | - Osama Azmy
- Department of Reproductive Health Research, National Research Centre, Cairo, Egypt.,Stem Cell Research group, Medical Research Centre of Excellence, National Research Centre, Cairo, Egypt
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Malchenko S, Sredni ST, Bi Y, Margaryan NV, Boyineni J, Mohanam I, Tomita T, Davuluri RV, Soares MB. Stabilization of HIF-1α and HIF-2α, up-regulation of MYCC and accumulation of stabilized p53 constitute hallmarks of CNS-PNET animal model. PLoS One 2017; 12:e0173106. [PMID: 28249000 PMCID: PMC5332108 DOI: 10.1371/journal.pone.0173106] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2016] [Accepted: 02/15/2017] [Indexed: 01/10/2023] Open
Abstract
Recently, we described a new animal model of CNS primitive neuroectodermal tumors (CNS-PNET), which was generated by orthotopic transplantation of human Radial Glial (RG) cells into NOD-SCID mice's brain sub-ventricular zone. In the current study we conducted comprehensive RNA-Seq analyses to gain insights on the mechanisms underlying tumorigenesis in this mouse model of CNS-PNET. Here we show that the RNA-Seq profiles derived from these tumors cluster with those reported for patients' PNETs. Moreover, we found that (i) stabilization of HIF-1α and HIF-2α, which are involved in mediation of the hypoxic responses in the majority of cell types, (ii) up-regulation of MYCC, a key onco-protein whose dysregulation occurs in ~70% of human tumors, and (iii) accumulation of stabilized p53, which is commonly altered in human cancers, constitute hallmarks of our tumor model, and might represent the basis for CNS-PNET tumorigenesis in this model. We discuss the possibility that these three events might be interconnected. These results indicate that our model may prove invaluable to uncover the molecular events leading to MYCC and TP53 alterations, which would be of broader interest considering their relevance to many human malignancies. Lastly, this mouse model might prove useful for drug screening targeting MYCC and related members of its protein interaction network.
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Affiliation(s)
- Sergey Malchenko
- Department of Cancer Biology & Pharmacology, University of Illinois College of Medicine, Peoria, Illinois, United States of America
| | - Simone Treiger Sredni
- Department of Surgery, Division of Pediatric Neurosurgery, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, United States of America
- Cancer Biology and Epigenomics Program at the Stanley Manne Children’s Research Institute, Ann & Robert H. Lurie Children’s Hospital of Chicago, Chicago, Illinois, United States of America
| | - Yingtao Bi
- Department of Preventive Medicine, Division of Health and Biomedical Informatics, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, United States of America
- Abbvie Bioresearch Center, Worcester, Massachusetts, United States
| | - Naira V. Margaryan
- Department of Biochemistry, Robert C. Byrd Health Sciences Center, West Virginia University, Morgantown, West Virginia, United States of America
| | - Jerusha Boyineni
- Department of Cancer Biology & Pharmacology, University of Illinois College of Medicine, Peoria, Illinois, United States of America
| | - Indra Mohanam
- Department of Cancer Biology & Pharmacology, University of Illinois College of Medicine, Peoria, Illinois, United States of America
| | - Tadanori Tomita
- Department of Surgery, Division of Pediatric Neurosurgery, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, United States of America
| | - Ramana V. Davuluri
- Department of Preventive Medicine, Division of Health and Biomedical Informatics, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, United States of America
| | - Marcelo B. Soares
- Department of Cancer Biology & Pharmacology, University of Illinois College of Medicine, Peoria, Illinois, United States of America
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Dhoke NR, Kalabathula E, Kaushik K, Geesala R, Sravani B, Das A. Histone deacetylases differentially regulate the proliferative phenotype of mouse bone marrow stromal and hematopoietic stem/progenitor cells. Stem Cell Res 2016; 17:170-80. [DOI: 10.1016/j.scr.2016.07.001] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/17/2015] [Revised: 06/27/2016] [Accepted: 07/01/2016] [Indexed: 01/22/2023] Open
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Genetic Engineering of Mesenchymal Stem Cells to Induce Their Migration and Survival. Stem Cells Int 2016; 2016:4956063. [PMID: 27242906 PMCID: PMC4868914 DOI: 10.1155/2016/4956063] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2016] [Revised: 02/22/2016] [Accepted: 03/14/2016] [Indexed: 12/20/2022] Open
Abstract
Mesenchymal stem cells (MSCs) are very attractive for regenerative medicine due to their relatively easy derivation and broad range of differentiation capabilities, either naturally or induced through cell engineering. However, efficient methods of delivery to diseased tissues and the long-term survival of grafted cells still need improvement. Here, we review genetic engineering approaches designed to enhance the migratory capacities of MSCs, as well as extend their survival after transplantation by the modulation of prosurvival approaches, including prevention of senescence and apoptosis. We highlight some of the latest examples that explore these pivotal points, which have great relevance in cell-based therapies.
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Hao Q, An JQ, Hao F, Yang C, Lu T, Qu TY, Zhao LR, Duan WM. Inducible Lentivirus-Mediated Expression of theOct4Gene Affects Multilineage Differentiation of Adult Human Bone Marrow–Derived Mesenchymal Stem Cells. Cell Reprogram 2015; 17:347-59. [DOI: 10.1089/cell.2015.0025] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Affiliation(s)
- Qiang Hao
- Department of Anatomy, Capital Medical University, Beijing, 100069, China
| | - Jia-Qiang An
- Department of Anatomy, Capital Medical University, Beijing, 100069, China
| | - Fei Hao
- Department of Anatomy, Capital Medical University, Beijing, 100069, China
| | - Chun Yang
- Department of Anatomy, Capital Medical University, Beijing, 100069, China
| | - Tao Lu
- Department of Anatomy, Capital Medical University, Beijing, 100069, China
| | - Ting-Yu Qu
- Department of Psychiatry, College of Medicine, University of Illinois at Chicago, Chicago, IL, 60612
| | - Li-Ru Zhao
- Department of Neurosurgery, Upstate Medical University, Syracuse, NY, 13210
| | - Wei-Ming Duan
- Department of Anatomy, Capital Medical University, Beijing, 100069, China
- Center of Parkinson's Disease, Beijing Institute for Brain Disorders, Beijing, 100069, China
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10
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Lee JH, Lee WJ, Jeon RH, Lee YM, Jang SJ, Lee SL, Jeon BG, Ock SA, King WA, Rho GJ. Development and gene expression of porcine cloned embryos derived from bone marrow stem cells with overexpressing Oct4 and Sox2. Cell Reprogram 2015; 16:428-38. [PMID: 25437870 DOI: 10.1089/cell.2014.0036] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
The present study compared the potential of porcine bone marrow mesenchymal stem cells (pBMSCs) at different passages as nuclear transfer (NT) donors and the developmental efficiency of NT embryos from donor cells transfected with/without Oct4 and Sox2. Early-passage pBMSCs showed higher proliferation and expression of Oct4 and Sox2 and differentiation potential into mesenchymal lineages than middle- and late-passage pBMSCs. Cleavage rate did not differ among pBMSCs at different passages, but NT embryos with early-passage pBMSCs and middle-passage pBMSCs transfected with Oct4 (Oct4-pBMSCs) had significantly (p<0.05) higher blastocyst development than those with middle-passage pBMSCs. The incidence of apoptotic bodies in NT blastocysts from late-passage pBMSCs and Sox2-transfected middle-passage pBMSCs (Sox2-pBMSCs) was significantly (p<0.05) higher than others. The transcriptional levels of Oct4, Sox2, Nanog, Cdx2, Dnmt3a, and Igf2r genes were significantly (p<0.05) higher in Oct4- and Sox2-pBMSCs NT embryos. Middle-passage pBMSCs NT embryos revealed lower transcriptional levels of Bcl2 than others, except Sox2-pBMSCs NT embryos. The transcriptional level of Bax increased gradually in NT embryos derived from pBMSCs following extended passages and was significantly (p<0.05) higher in Sox2-pBMSCs NT embryos. Our results demonstrated that early-passage pBMSCs are more potent in expressing transcription factors and displayed higher differentiation ability, and middle-passage pBMSCs transfected with Oct4 improved the developmental efficiency of NT embryos, suggesting that high Oct4 expression cells are more efficient as NT donors.
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Affiliation(s)
- Jeong-Hyeon Lee
- 1 Theriogenology and Biotechnology, College of Veterinary Medicine, Gyeongsang National University , Jinju, 660-701, Republic of Korea
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Xu G, Yang L, Zhang W, Wei X. All the Tested Human Somatic Cells Express Both Oct4A and Its Pseudogenes but Express Oct4A at Much Lower Levels Compared with Its Pseudogenes and Human Embryonic Stem Cells. Stem Cells Dev 2015; 24:1546-57. [PMID: 25687509 DOI: 10.1089/scd.2014.0552] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Oct4 pseudogenes and isoforms seriously confuse the detection of the pluripotency-associated Oct4A expression in somatic cells, which in many cases was not accurately determined. This confusion has recently been discussed, but the wrong conclusions have continuously been made. Most studies failed to detect the expression of Oct4 pseudogenes and isoforms in somatic cells but detected only Oct4A, for which the detection signals incorrectly came from its pseudogenes and isoforms. Some studies detected the expression of only Oct4 pseudogenes in somatic cells but failed to detect Oct4A. The other studies failed to detect the expression of any Oct4 genes. Oct4A is more homologous to its pseudogenes than its isoforms, and it is much more difficult to distinguish Oct4A from its pseudogenes, so this study focused on them. In this study, the strict experimental procedures were followed. Three pairs of Oct4A-specific polymerase chain reaction (PCR) primers were carefully designed and tested by sequencing reverse transcription-polymerase chain reaction (RT-PCR) clones, which showed that only one of them was truly specific to Oct4A. RT-PCR was also performed with the primers amplifying both Oct4A and its pseudogenes, and several hundreds of PCR clones from each cell type were sequenced to reliably distinguish the low-abundant Oct4A from its high-abundant pseudogenes. Western blot, immunocytochemistry, and flow cytometric analyses were performed with three Oct4 antibodies to confirm the results of Oct4 mRNA expression. This study undoubtedly made the correct conclusions about Oct4 expression in human somatic cells and showed that all the tested human somatic cells expressed both Oct4A and its pseudogenes but expressed Oct4A at much lower levels compared with its pseudogenes.
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Affiliation(s)
- Guangzu Xu
- Institute of Biomedicine, College of Life Science and Technology, National Engineering Research Center of Genetic Medicine, Jinan University , Guangzhou, China
| | - Ling Yang
- Institute of Biomedicine, College of Life Science and Technology, National Engineering Research Center of Genetic Medicine, Jinan University , Guangzhou, China
| | - Weixiong Zhang
- Institute of Biomedicine, College of Life Science and Technology, National Engineering Research Center of Genetic Medicine, Jinan University , Guangzhou, China
| | - Xing Wei
- Institute of Biomedicine, College of Life Science and Technology, National Engineering Research Center of Genetic Medicine, Jinan University , Guangzhou, China
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Tataranni T, Agriesti F, Mazzoccoli C, Ruggieri V, Scrima R, Laurenzana I, D'Auria F, Falzetti F, Di Ianni M, Musto P, Capitanio N, Piccoli C. The iron chelator deferasirox affects redox signalling in haematopoietic stem/progenitor cells. Br J Haematol 2015; 170:236-46. [DOI: 10.1111/bjh.13381] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2014] [Accepted: 02/04/2015] [Indexed: 01/19/2023]
Affiliation(s)
- Tiziana Tataranni
- Laboratory of Pre-Clinical and Translational Research; IRCCS-CROB; Referral Cancer Centre of Basilicata; Rionero in Vulture (Pz) Italy
| | - Francesca Agriesti
- Laboratory of Pre-Clinical and Translational Research; IRCCS-CROB; Referral Cancer Centre of Basilicata; Rionero in Vulture (Pz) Italy
| | - Carmela Mazzoccoli
- Laboratory of Pre-Clinical and Translational Research; IRCCS-CROB; Referral Cancer Centre of Basilicata; Rionero in Vulture (Pz) Italy
| | - Vitalba Ruggieri
- Laboratory of Pre-Clinical and Translational Research; IRCCS-CROB; Referral Cancer Centre of Basilicata; Rionero in Vulture (Pz) Italy
| | - Rosella Scrima
- Department of Clinical and Experimental Medicine; University of Foggia; Foggia Italy
| | - Ilaria Laurenzana
- Laboratory of Pre-Clinical and Translational Research; IRCCS-CROB; Referral Cancer Centre of Basilicata; Rionero in Vulture (Pz) Italy
| | - Fiorella D'Auria
- Laboratory of Clinical Research and Advanced Diagnostics; IRCCS-CROB; Referral Cancer Centre of Basilicata; Rionero in Vulture (PZ) Italy
| | - Franca Falzetti
- Haematology and Clinical Immunology Section; University of Perugia; Perugia Italy
| | - Mauro Di Ianni
- Department of Internal Medicine and Public Health; University of L'Aquila; L'Aquila Italy
| | - Pellegrino Musto
- Scientific Direction; IRCCS-CROB; Referral Cancer Centre of Basilicata; Rionero in Vulture (PZ) Italy
| | - Nazzareno Capitanio
- Department of Clinical and Experimental Medicine; University of Foggia; Foggia Italy
| | - Claudia Piccoli
- Laboratory of Pre-Clinical and Translational Research; IRCCS-CROB; Referral Cancer Centre of Basilicata; Rionero in Vulture (Pz) Italy
- Department of Clinical and Experimental Medicine; University of Foggia; Foggia Italy
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Galiger C, Kostin S, Golec A, Ahlbrecht K, Becker S, Gherghiceanu M, Popescu LM, Morty RE, Seeger W, Voswinckel R. Phenotypical and ultrastructural features of Oct4-positive cells in the adult mouse lung. J Cell Mol Med 2014; 18:1321-33. [PMID: 24889158 PMCID: PMC4124017 DOI: 10.1111/jcmm.12295] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2013] [Accepted: 03/12/2014] [Indexed: 12/19/2022] Open
Abstract
Octamer binding trascription factor 4 (Oct4) is a transcription factor of POU family specifically expressed in embryonic stem cells (ESCs). A role for maintaining pluripotency and self-renewal of ESCs is assigned to Oct4 as a pluripotency marker. Oct4 can also be detected in adult stem cells such as bone marrow-derived mesenchymal stem cells. Several studies suggest a role for Oct4 in sustaining self-renewal capacity of adult stem cells. However, Oct4 gene ablation in adult stem cells revealed no abnormalities in tissue turnover or regenerative capacity. In the present study we have conspicuously found pulmonary Oct4-positive cells closely resembling the morphology of telocytes (TCs). These cells were found in the perivascular and peribronchial areas and their presence and location were confirmed by electron microscopy. Moreover, we have used Oct4-GFP transgenic mice which revealed a similar localization of the Oct4-GFP signal. We also found that Oct4 co-localized with several described TC markers such as vimentin, Sca-1, platelet-derived growth factor receptor-beta C-kit and VEGF. By flow cytometry analyses carried out with Oct4-GFP reporter mice, we described a population of EpCAM(neg) /CD45(neg) /Oct4-GFP(pos) that in culture displayed TC features. These results were supported by qRT-PCR with mRNA isolated from lungs by using laser capture microdissection. In addition, Oct4-positive cells were found to express Nanog and Klf4 mRNA. It is concluded for the first time that TCs in adult lung mouse tissue comprise Oct4-positive cells, which express pluripotency-related genes and represent therefore a population of adult stem cells which might contribute to lung regeneration.
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Affiliation(s)
- Celimene Galiger
- Department of Lung Development and Remodeling, Max-Planck-Institute for Heart and Lung Research, Bad Nauheim, Germany
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