1
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Shariati F, Favaedi R, Ramazanali F, Ghoraeian P, Afsharian P, Aflatoonian B, Aflatoonian R, Shahhoseini M. Increased expression of stemness genes REX-1, OCT-4, NANOG, and SOX-2 in women with ovarian endometriosis versus normal endometrium: A case-control study. Int J Reprod Biomed 2019; 16. [PMID: 31417979 PMCID: PMC6600279 DOI: 10.18502/ijrm.v16i12.3684] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2017] [Revised: 01/15/2018] [Accepted: 09/03/2018] [Indexed: 01/06/2023] Open
Abstract
Background Endometriosis is a common, chronic inflammatory disease which is defined as an overgrowth of endometrial tissue outside the uterine cavity. The etiology of this disease is complex and multifactorial but there is a strong evidence that supports the presence of endometrial stem cells and their possible involvement in endometriosis. Objective In this study, we analyzed the mRNA expression of REX-1 stemness gene and reconsidered three other stemness genes SOX-2, NANOG, OCT-4 in women with endometriosis compared to normal endometrium. Materials and Methods Ten ectopic and ten eutopic tissue samples along with 23 normal endometrium specimens were recruited in this study. The expression levels of OCT-4, NANOG, SOX-2, and REX-1 genes were evaluated by the quantitative real-time polymerase chain reaction. Results The transcription levels of OCT-4, NANOG, and SOX-2 mRNA were significantly increased in ectopic lesions compared with eutopic and control group (p = 0.041, p = 0.035, p = 0.048), although the REX-1 mRNA increase was not significant between endometriosis and control groups. Also, there were differences in the expression level of these genes in normal endometrium during the menstrual cycles (p = 0.031, p = 0.047, p = 0.031). Conclusion Based on our data, we confirm the dynamic role of stemness genes in proliferation and growth of normal endometrium during the menstrual cycle and conclude that differential expression levels of these genes may contribute to the pathophysiology of endometriosis.
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Affiliation(s)
- Fatameh Shariati
- Reproductive Epidemiology Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran.,Department of Genetics, Tehran Medical Sciences Branch, Islamic Azad University, Tehran, Iran.,Department of Genetics, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
| | - Raha Favaedi
- Department of Genetics, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
| | - Fariba Ramazanali
- Department of Endocrinology and Female Infertility, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
| | - Pegah Ghoraeian
- Department of Genetics, Tehran Medical Sciences Branch, Islamic Azad University, Tehran, Iran
| | - Parvaneh Afsharian
- Department of Genetics, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
| | - Behrouz Aflatoonian
- Stem Cell Biology Research Center, Yazd Reproductive Sciences Institute, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Reza Aflatoonian
- Department of Endocrinology and Female Infertility, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
| | - Maryam Shahhoseini
- Reproductive Epidemiology Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran.,Department of Genetics, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
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2
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Mattern F, Heinzmann J, Herrmann D, Lucas-Hahn A, Haaf T, Niemann H. Gene-specific profiling of DNA methylation and mRNA expression in bovine oocytes derived from follicles of different size categories. Reprod Fertil Dev 2018; 29:2040-2051. [PMID: 28152377 DOI: 10.1071/rd16327] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2016] [Accepted: 12/14/2016] [Indexed: 12/20/2022] Open
Abstract
Epigenetic changes, such as DNA methylation, play an essential role in the acquisition of full developmental competence by mammalian oocytes during the late follicular growth phase. Here we used the bovine model to investigate the DNA methylation profiles of seven candidate genes (imprinted: bH19, bSNRPN; non-imprinted: bZAR1, bDNMT3A, bOCT4, bDNMT3 Lo and bDNMT3 Ls) and the mRNA expression of nine candidate genes (imprinted: bSNRPN, bPEG3, bIGF2R; non-imprinted: bPRDX1, bDNMT1B, bDNMT3A, bZAR1, bHSF1 and bNLRP9) in oocytes from antral follicles of three different size classes (≤2mm, 3-5mm, ≥6mm) to unravel the epigenetic contribution to this process. We observed an increased number of aberrantly methylated alleles in bH19, bSNRPN and bDNMT3 Lo of oocytes from small antral follicles (≤2mm), correlating with lower developmental competence. Furthermore, we detected an increased frequency of CpG sites with an unclear methylation status for DNMT3 Ls, specifically in oocytes from follicles ≥6mm, predominantly at three CpG positions (CpG2, CpG7 and CpG8), of which CpG7 is a potential regulatory site. No major differences in mRNA expression were observed, indicating that the transcriptional machinery may not yet be active during the follicular growth phase. Our results support the notion that a follicle diameter of ~2mm is a critical stage for establishing DNA methylation profiles and indicate a link between DNA methylation and the acquisition of oocyte developmental competence.
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Affiliation(s)
- F Mattern
- Institute of Human Genetics, Julius Maximilians University, 97070 Würzburg, Germany
| | - J Heinzmann
- Institute of Farm Animal Genetics, Friedrich-Loeffler-Institut, Federal Research Institute of Animal Health, Mariensee, 31535 Neustadt, Germany
| | - D Herrmann
- Institute of Farm Animal Genetics, Friedrich-Loeffler-Institut, Federal Research Institute of Animal Health, Mariensee, 31535 Neustadt, Germany
| | - A Lucas-Hahn
- Institute of Farm Animal Genetics, Friedrich-Loeffler-Institut, Federal Research Institute of Animal Health, Mariensee, 31535 Neustadt, Germany
| | - T Haaf
- Institute of Human Genetics, Julius Maximilians University, 97070 Würzburg, Germany
| | - H Niemann
- Institute of Farm Animal Genetics, Friedrich-Loeffler-Institut, Federal Research Institute of Animal Health, Mariensee, 31535 Neustadt, Germany
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3
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Eelaminejad Z, Favaedi R, Modarresi T, Sabbaghian M, Sadighi Gilani MA, Shahhoseini M. Association between JMJD1A Expression and Sperm Retrieval in Non-Obstructive Azoospermic Patients. CELL JOURNAL 2017; 19:660-665. [PMID: 29105403 PMCID: PMC5672107 DOI: 10.22074/cellj.2018.4409] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/28/2016] [Accepted: 10/17/2016] [Indexed: 11/30/2022]
Abstract
Identification of molecular markers which can predict the outcome of sperm retrieval non-invasively in patients with
non-obstructive azoospermia (NOA) are valuable in clinical andrology. Jumonji domain-containing 1a (JMJD1A)
is a significant epigenetic regulator during spermatogenesis, which plays an important role in the differentiation of
post-meiotic germ cells into mature spermatozoa. We therefore aimed to examine the potential association between
JMJD1A expression and the outcome of sperm retrieval in patients with NOA. Testicular biopsy specimens from 50
NOA patients with either successful sperm retrieval (sperm+, n=22) or failed sperm retrieval (sperm-, n=28) were
collected and then examined for JMJD1A expression by reverse transcription-quantitative polymerase chain reaction
(RT-qPCR). In addition, conventional clinical parameters including luteinizing hormone, follicle-stimulating hormone,
testosterone, age, and testicular volume were compared between the two NOA groups. The expression of JMJD1A in
the sperm+ group was significantly higher than in the sperm- group (P<0.001), however, no significant difference was
observed between the two groups in clinical parameters. The receiver operating characteristic (ROC) curve of JMJD1A
expression in predicting the sperm retrieval outcome showed a sensitivity of 90.91% and a specificity of 89.29% with
significant discriminatory ability between the sperm+ and sperm- groups [area under the ROC curve (AUC)= 0.91]. This
study demonstrates a significant association between the expression of JMJD1A and the success of sperm recovery in
patients with NOA, and thus suggests that JMJD1A expression quantification in testicular biopsies may be a valuable
biomarker along with conventional parameters in predicting the presence of spermatozoa.
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Affiliation(s)
- Zahra Eelaminejad
- Department of Genetics, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
| | - Raha Favaedi
- Department of Genetics, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
| | - Tahereh Modarresi
- Department of Andrology, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
| | - Marjan Sabbaghian
- Department of Andrology, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
| | - Mohammad Ali Sadighi Gilani
- Department of Andrology, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran.,Department of Urology, Shariati Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Maryam Shahhoseini
- Department of Genetics, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran.
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4
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Roudi R, Ebrahimi M, Shariftabrizi A, Madjd Z. Cancer stem cell research in Iran: potentials and challenges. Future Oncol 2017; 13:1809-1826. [PMID: 28776391 DOI: 10.2217/fon-2017-0091] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Treatment modalities can reduce cancer-related mortality; however, a majority of patients develop drug resistance, metastasis and relapse. It has been proposed that tumorigenic characteristics of tumors are related to a proportion of cancer cells, termed cancer stem cells (CSCs). Following the first evidence regarding the existence of CSC population in acute myeloid leukemia in 1997, publications in CSCs field showed an explosive trend in all cancer types around the world. First research paper in the field of CSCs in Iran was published in 2004 on prostate cancer. Subsequently, an annual number of publications in the field of CSCs displayed a rapidly growing trend. Therefore, in the current review, we have presented a comprehensive evaluation of the CSCs research in Iran.
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Affiliation(s)
- Raheleh Roudi
- Oncopathology Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Marzieh Ebrahimi
- Department of Stem Cells & Developmental Biology at Cell Science Research Center, Royan Institute for Stem Cell Biology & Technology, ACECR, Tehran, Iran
| | - Ahmad Shariftabrizi
- Department of Nuclear Medicine & Molecular Imaging, State University of New York at Buffalo, Buffalo, NY 14214, USA
| | - Zahra Madjd
- Oncopathology Research Center, Iran University of Medical Sciences, Tehran, Iran.,Department of Molecular Medicine, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, Iran
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5
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Topalovic V, Schwirtlich M, Stevanovic M, Mojsin M. Histone modifications on the promoters of human OCT4 and NANOG genes at the onset of neural differentiation of NT2/D1 cells. BIOCHEMISTRY (MOSCOW) 2017; 82:715-722. [DOI: 10.1134/s0006297917060086] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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6
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Choi HW, Joo JY, Hong YJ, Kim JS, Song H, Lee JW, Wu G, Schöler HR, Do JT. Distinct Enhancer Activity of Oct4 in Naive and Primed Mouse Pluripotency. Stem Cell Reports 2016; 7:911-926. [PMID: 28157483 PMCID: PMC5106531 DOI: 10.1016/j.stemcr.2016.09.012] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2016] [Revised: 09/26/2016] [Accepted: 09/28/2016] [Indexed: 02/02/2023] Open
Abstract
Naive and primed pluripotent stem cells (PSCs) and germ cells express the Oct4 gene. The Oct4 gene contains two cis-regulatory elements, the distal enhancer (DE) and proximal enhancer (PE), which differentially control Oct4 expression in a cell-type-specific and stage-specific manner. Here, we generated double transgenic mice carrying both Oct4-ΔPE-GFP and Oct4-ΔDE-tdTomato (RFP), enabling us to simultaneously monitor the activity of DE and PE. Oct4 expression is stage-specifically regulated by DE and PE during embryonic and germ cell development. Using this dual reporter system, we successfully cultured pure populations of naive (GFP+RFP−) and primed (GFP−RFP+) PSCs. We found that GFP+RFP− cells were metastable (not naive) in serum-containing medium; stable naive pluripotent cells were observed in medium containing two inhibitors (Meki and GSKi) but lacked serum. Finally, we suggest that the activity of Oct4 DE and PE is regulated by the repressive histone marks and DNA methylation in a cell-type-specific manner. A defined model for Oct4 enhancer activity in the totipotent cycle Culturing pure populations of naive and primed PSCs by a double reporter system Altering Oct4 enhancer activity in PSCs by changing culture conditions Histone modification and DNA methylation regulate Oct4 enhancer activity
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Affiliation(s)
- Hyun Woo Choi
- Department of Stem Cell and Regenerative Biology, College of Animal Bioscience and Technology, Konkuk University, Seoul 143-701, Republic of Korea; Department of Cell and Developmental Biology, Max Planck Institute for Molecular Biomedicine, Röntgenstrasse 20, 48149 Münster, Germany
| | - Jin Young Joo
- Department of Stem Cell and Regenerative Biology, College of Animal Bioscience and Technology, Konkuk University, Seoul 143-701, Republic of Korea; Dream-i Infertility Clinic, 45-17 Huimang-ro, 46 Beon-gil Baebang-eup, Asan-si 31470, Chungcheongnam-do, Republic of Korea
| | - Yean Ju Hong
- Department of Stem Cell and Regenerative Biology, College of Animal Bioscience and Technology, Konkuk University, Seoul 143-701, Republic of Korea
| | - Jong Soo Kim
- Department of Stem Cell and Regenerative Biology, College of Animal Bioscience and Technology, Konkuk University, Seoul 143-701, Republic of Korea
| | - Hyuk Song
- Department of Stem Cell and Regenerative Biology, College of Animal Bioscience and Technology, Konkuk University, Seoul 143-701, Republic of Korea
| | - Jeong Woong Lee
- Research Center of Integrative Cellulomics, Korea Research Institute of Bioscience and Biotechnology, Daejeon 305-806, Republic of Korea
| | - Guangming Wu
- Department of Cell and Developmental Biology, Max Planck Institute for Molecular Biomedicine, Röntgenstrasse 20, 48149 Münster, Germany
| | - Hans R Schöler
- Department of Cell and Developmental Biology, Max Planck Institute for Molecular Biomedicine, Röntgenstrasse 20, 48149 Münster, Germany
| | - Jeong Tae Do
- Department of Stem Cell and Regenerative Biology, College of Animal Bioscience and Technology, Konkuk University, Seoul 143-701, Republic of Korea.
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7
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Falahzadeh K, Shahhoseini M, Afsharian P. Differential Incorporation of β-actin as A Component of RNA Polymerase II into Regulatory Regions of Stemness/Differentiation Genes in Retinoic Acid-Induced Differentiated Human Embryonic Carcinoma Cells. CELL JOURNAL 2016; 18:214-20. [PMID: 27540526 PMCID: PMC4988420 DOI: 10.22074/cellj.2016.4316] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/17/2015] [Accepted: 11/22/2015] [Indexed: 12/14/2022]
Abstract
Objective Nuclear actin is involved in transcription regulation by recruitment of histone
modifiers and chromatin remodelers to the regulatory regions of active genes. In recent
years, further attention has been focused on the role of actin as a nuclear protein in
transcriptional processes. In the current study, the epigenetic role of nuclear actin on
transcription regulation of two stemness (OCT4 and NANOG)
and two differentiation) NESTIN and PAX6) marker genes was evaluated in a human embryonal carcinoma cell line (NT2)
before and after differentiation induction. Materials and Methods In this experimental study, differentiation of embryonal cells was
induced by retinoic acid (RA), and quantitative real-time polymerase chain reaction (PCR)
was used to evaluate differential expression of marker genes before and 3 days after RA-
induced differentiation. Chromatin immunoprecipitation (ChIP) coupled with real-time PCR
was then undertaken to monitor the incorporation of β-actin, as a functional component of
RNA polymerase II, in the regulatory regions of marker genes. Results Data showed significant change in nuclear actin incorporation into the promoter
regions of NESTIN and PAX6 after RA-induction.
Conclusion We emphasize the dynamic functional role of nuclear actin in differentiation
of embryonal cells and its role as a subunit of RNA polymerase II.
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Affiliation(s)
- Khadijeh Falahzadeh
- Department of Genetics, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran; Department of Cell and Molecular Biology, Faculty of Biological Sciences, Kharazmi University (TMU), Tehran, Iran
| | - Maryam Shahhoseini
- Department of Genetics, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
| | - Parvaneh Afsharian
- Department of Genetics, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
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8
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Moeinvaziri F, Shahhoseini M. Epigenetic role of CCAAT box-binding transcription factor NF-Y on ID gene family in human embryonic carcinoma cells. IUBMB Life 2015; 67:880-7. [PMID: 26509926 DOI: 10.1002/iub.1443] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2015] [Accepted: 10/05/2015] [Indexed: 12/31/2022]
Abstract
Nuclear factor Y (NF-Y) is a histone substitute protein that specifically binds to the CCAAT box of the target genes and thereby promotes their regulation. NF-Y transcription factor, with defined CCAAT element-binding activities, target a gene family that encodes a group of basic helix-loop-helix ID factors (ID1-ID4), with or without CCAAT box at their promoter region. In this study, the expressions of NF-Y in mRNA and protein level were evaluated in a human embryonic carcinoma cell line, named NTera2, before and after 7 days induction of differentiation. We also looked into expression levels of ID genes in NTera2 cells during differentiation because of their critical role in development. By using chromatin immunoprecipitation coupled with real-time polymerase chain reaction, NF-Y incorporation and acetylation/dimethylation of histone H3 at lysine 9 (H3K9ac/me2) was quantitatively evaluated on the regulatory regions of considered genes to monitor the changes in epigenetic markers at ID gene promoters throughout differentiation. The results demonstrated a marked down-regulation of ID1, ID2, and ID3 genes, parallel to a loss of NF-Y binding to the promoters of these genes. The data show that although the genes encoding NF-Y complex remained expressed at mRNA level, NF-YC is lost at the protein level onset of differentiation. Additionally, the epigenetic marks of H3K9ac and H3K9me2 at the target gene promoters decreased and increased, respectively, after 1 day of differentiation. It is suggested that, in the absence of NF-Y binding, the corresponding regions adopt a heterochromatic nature, whereas when NF-Y comes back after 7 days of differentiation, the ID1-3 promoters become again converted into active chromatin. The ID4 gene, lacking a CCAAT box, behaves differently and does not show any incorporation. This experiment implies for the first time that the presence of NF-Y transcription factor plays a pivotal role in transcriptional regulation of ID genes in development.
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Affiliation(s)
- Farideh Moeinvaziri
- Department of Genetics, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran.,Department of Developmental Biology, University of Science and Culture, ACECR, Tehran, Iran
| | - Maryam Shahhoseini
- Department of Genetics, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
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9
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Heinzmann J, Mattern F, Aldag P, Bernal-Ulloa SM, Schneider T, Haaf T, Niemann H. Extended in vitro maturation affects gene expression and DNA methylation in bovine oocytes. Mol Hum Reprod 2015; 21:770-82. [PMID: 26155800 DOI: 10.1093/molehr/gav040] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2015] [Accepted: 06/22/2015] [Indexed: 12/31/2022] Open
Abstract
To mimic post-ovulatory ageing, we have extended the in vitro maturation (IVM) phase to 48 h and examined effects on (i) developmental potential, (ii) expression of a panel of developmentally important genes and (iii) gene-specific epigenetic marks. Results were compared with the 24 h IVM protocol (control) usually employed for bovine oocytes. Cleavage rates and blastocyst yields were significantly reduced in oocytes after extended IVM. No significant differences were observed in the methylation of entire alleles in oocytes for the genes bH19, bSNRPN, bZAR1, bOct4 and bDNMT3A. However, we found differentially methylated CpG sites in the bDNMT3Ls locus in oocytes after extended IVM and in embryos derived from them compared with controls. Moreover, embryos derived from the 48 h matured oocyte group were significantly less methylated at CpG5 and CpG7 compared with the 24 h group. CpG7 was significantly hypermethylated in embryos produced from the control oocytes, but not in oocytes matured for 48 h. Furthermore, methylation for CpG5-CpG8 of bDNMT3Ls was significantly lower in oocytes of the 24 h group compared with embryos derived therefrom, whereas no such difference was found for oocytes and embryos of the in vitro aged group. Expression of most of the selected genes was not affected by duration of IVM. However, transcript abundance for the imprinted gene bIGF2R was significantly reduced in oocytes analyzed after extended IVM compared with control oocytes. Transcript levels for bPRDX1, bDNMT3A and bBCLXL were significantly reduced in 4- to 8-cell embryos derived from in vitro aged oocytes. These results indicate that extended IVM leads to ageing-like alterations and demonstrate that epigenetic mechanisms are critically involved in ageing of bovine oocytes, which warrants further studies into epigenetic mechanisms involved in ageing of female germ cells, including humans.
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Affiliation(s)
- Julia Heinzmann
- Institute of Farm Animal Genetics (FLI), Mariensee, 31535 Neustadt, Germany
| | - Felix Mattern
- Institute of Human Genetics, Julius Maximilians University, 97070 Würzburg, Germany
| | - Patrick Aldag
- Institute of Farm Animal Genetics (FLI), Mariensee, 31535 Neustadt, Germany
| | | | - Tamara Schneider
- Institute of Human Genetics, Julius Maximilians University, 97070 Würzburg, Germany
| | - Thomas Haaf
- Institute of Human Genetics, Julius Maximilians University, 97070 Würzburg, Germany
| | - Heiner Niemann
- Institute of Farm Animal Genetics (FLI), Mariensee, 31535 Neustadt, Germany
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10
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Ziadlou R, Shahhoseini M, Safari F, Sayahpour FA, Nemati S, Eslaminejad MB. Comparative analysis of neural differentiation potential in human mesenchymal stem cells derived from chorion and adult bone marrow. Cell Tissue Res 2015; 362:367-77. [PMID: 26022335 DOI: 10.1007/s00441-015-2210-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2014] [Accepted: 05/07/2015] [Indexed: 01/21/2023]
Abstract
The finding of a reliable and abundant source of stem cells for the replacement of missing neurons in nervous system diseases requires extensive characterization of neural-differentiation-associated markers in stem cells from various sources. Chorion-derived stem cells from the human placenta have recently been described as an abundant, ethically acceptable, and easily accessible source of cells that are not limited in the same way as bone marrow (BM) mesenchymal stem cells (MSCs). We have isolated and cultured chorion MSCs (C-MSCs) and compared their proliferative capacity, multipotency, and neural differentiation ability with BM-MSCs. C-MSCs showed a higher proliferative capacity compared with BM-MSCs. The expression and histone modification of Nestin, as a marker for neural stem/progenitor cells, was evaluated quantitatively between the two groups. The Nestin expression level in C-MSCs was significantly higher than that in BM-MSCs. Notably, modifications of lys9, lys4, and lys27 of histone H3 agreed with the remarkable higher expression of Nestin in C-MSCs than in BM-MSCs. Furthermore, after neural differentiation of MSCs upon retinoic acid induction, both immunocytochemical and flow cytometry analyses demonstrated that the expression of neural marker genes was significantly higher in neural-induced C-MSCs compared with BM-MSCs. Mature neuron marker genes were also expressed at a significantly higher level in C-MSCs than in BM-MSCs. Thus, C-MSCs have a greater potential than BM-MSCs for differentiation to neural cell lineages and can be regarded as a promising source of stem cells for the cell therapy of neurological disorders.
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Affiliation(s)
- Reihane Ziadlou
- Department of Genetics at Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
- Department of Stem Cells and Developmental Biology at Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
- Department of Molecular and Cellular Biology, Faculty of Basic Sciences and Advanced Technologies in Biology, University of Science and Culture, Tehran, Iran
| | - Maryam Shahhoseini
- Department of Genetics at Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran.
| | - Fatemeh Safari
- Department of Stem Cells and Developmental Biology at Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Forugh-Azam Sayahpour
- Department of Stem Cells and Developmental Biology at Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Shiva Nemati
- Department of Stem Cells and Developmental Biology at Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Mohamadreza Baghaban Eslaminejad
- Department of Stem Cells and Developmental Biology at Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran.
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11
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Yiang GT, Tsai HF, Chen JR, Chou PL, Wu TK, Liu HC, Chang WJ, Liu LC, Tseng HH, Yu YL. RC-6 ribonuclease induces caspase activation, cellular senescence and neuron-like morphology in NT2 embryonal carcinoma cells. Oncol Rep 2014; 31:1738-44. [PMID: 24535104 DOI: 10.3892/or.2014.3023] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2013] [Accepted: 11/25/2013] [Indexed: 11/05/2022] Open
Abstract
Frog ribonucleases have been demonstrated to have anticancer activities. However, whether RC-6 ribonuclease exerts anticancer activity on human embryonal carcinoma cells remains unclear. In the present study, RC-6 induced cytotoxicity in NT2 cells (a human embryonal carcinoma cell line) and our studies showed that RC-6 can exert anticancer effects and induce caspase-9 and -3 activities. Moreover, to date, there is no evidence that frog ribonuclease-induced cytotoxicity effects are related to cellular senescence. Therefore, our studies showed that RC-6 can increase p16 and p21 protein levels and induce cellular senescence in NT2 cells. Notably, similar to retinoic acid-differentiated NT2 cells, neuron-like morphology was found on some remaining live cells after RC-6 treatment. In conclusion, our study is the first to demonstrate that RC-6 can induce cytotoxic effects, caspase-9/-3 activities, cellular senescence and neuron-like morphology in NT2 cells.
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Affiliation(s)
- Giou-Teng Yiang
- Department of Emergency Medicine, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei 231, Taiwan, R.O.C
| | - Hsiu-Feng Tsai
- Department of Emergency Medicine, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei 231, Taiwan, R.O.C
| | - Jer-Rong Chen
- Department of Surgery, China Medical University Hospital, Taichung 404, Taiwan, R.O.C
| | - Pei-Lun Chou
- Division of Allergy-Immunology-Rheumatology, Department of Internal Medicine, Saint Mary's Hospital Luodong, Yilan 265, Taiwan, R.O.C
| | - Tsai-Kun Wu
- Division of Renal Medicine, Tungs' Taichung Metroharbor Hospital, Taichung 435, Taiwan, R.O.C
| | - Hsiao-Chun Liu
- Department of Nursing, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei 231, Taiwan, R.O.C
| | - Wei-Jung Chang
- Graduate Institute of Cancer Biology and Center for Molecular Medicine, China Medical University, Taichung 404, Taiwan, R.O.C
| | - Liang-Chih Liu
- Department of Surgery, China Medical University Hospital, Taichung 404, Taiwan, R.O.C
| | - Hsu-Hung Tseng
- Division of General Surgery, Taichung Hospital, Ministry of Health and Welfare, Taichung 403, Taiwan, R.O.C
| | - Yung-Luen Yu
- Graduate Institute of Cancer Biology and Center for Molecular Medicine, China Medical University, Taichung 404, Taiwan, R.O.C
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Jiao F, Wang X, Yan Z, Liu C, Yue Z, Li Z, Ma Y, Li Y, Wang J. Effect of dynamic DNA methylation and histone acetylation on cPouV expression in differentiation of chick embryonic germ cells. Stem Cells Dev 2013; 22:2725-35. [PMID: 23750509 DOI: 10.1089/scd.2013.0046] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
As a crucial pluripotency-related factor, the epigenetic regulation of Oct4 has been studied intensively in mammalians. However, its dynamic changes of DNA methylation and histone modification in avians remain poorly understood. In the present study, we first described the alterations of DNA methylation and histone acetylation in the promoter of chicken PouV (cPouV; the homologue of Oct4 in avian) during chick embryonic germ (EG) cell differentiation. The epigenetic modification analysis showed that DNA methylation in the cPouV promoter increased obviously, while histone acetylation decreased dramatically detected by chromatin immunoprecipitation assay in the process of differentiation. Gene expression analysis detection indicated that the levels of DNA methyltransferase 3a (Dnmt 3a), Dnmt 3b, and histone deacetylase 3 (HDAC 3) transcripts were significantly high, whereas the relative abundance of Dnmt 1, histone acetyltransferase (HAT), and cPouV mRNA was significantly decreased during the conversion of EG to embryoid body-like structures (EBs), which was correlated with the increased level of methylation and reduced level of H3 acetylation. Moreover, in vitro methylation assay indicated that the reporter gene was remarkably inhibited by the methylated promoter of cPouV. To further understand the effect of epigenetic modifiers on cPouV expression, we performed an analysis of EB cells treated with trichostatin A (TSA), Aza-2'-deoxycytidine (Aza), or TSA plus Aza (TSA/Aza). We observed that the effect of TSA/Aza is more sensitive to the reactivation of cPouV compared with TSA or Aza, indicating that these epigenetic inhibitors can function synergistically to facilitate the reprogramming process. The present study provided evidences that a critical role for cPouV activation/repression by DNA methylation and/or histone modifications is involved in the pluripotency maintenance and differentiation process of chick EG.
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Affiliation(s)
- Fei Jiao
- 1 Department of Biochemistry and Molecular Biology, Binzhou Medical College , Yantai, Shandong Province, People's Republic of China
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Kakhki SA, Shahhoseini M, Salekdeh GH. Comparative SRY incorporation on the regulatory regions of pluripotency/differentiation genes in human embryonic carcinoma cells after retinoic acid induction. Mol Cell Biochem 2013; 376:145-50. [PMID: 23361361 DOI: 10.1007/s11010-013-1562-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2012] [Accepted: 01/18/2013] [Indexed: 01/07/2023]
Abstract
Members of the SOX (SRY box) family proteins play critical roles in multiple aspects of development. SRY, as a founder member of SOX family, has been long believed to be involved in the development of sexual gonads by triggering signaling cascades which lead to the formation of testis or ovary from bipotential gonads. However, less is known about other potential regulatory roles of SRY in the development and differentiation. In order to gain further insight into the possible roles of SRY during development, we looked into possible SRY-regulated genes and their levels of expression in a human embryonic carcinoma cell line, named NTera2, before and after induction of differentiation. For this respect, SRY incorporation on the regulatory regions of two groups of genes including OCT4, NANOG, and SOX2 as pluripotency marker genes, and NESTIN and PAX6 as differentiation marker genes were evaluated quantitatively. Chromatin immunoprecipitation using SRY antibody was performed on chromatin extract of a human embryonic carcinoma cell line, NT2/NTERA-2, before and after onset of differentiation. The results showed that incorporation of SRY in both groups of genes was increased after induction of differentiation. Besides, lower expression of OCT4, SOX2, and NANOG and higher expression of PAX6 and NESTIN genes in differentiated cells suggest that SRY may act as a transcription repressor for pluripotency-associated genes and as a transcription activator for differentiation-related genes.
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Affiliation(s)
- Sara Ashrafi Kakhki
- Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran
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