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Gao K, Chen Y, Wang P, Chang W, Cao B, Luo L. GATA4: Regulation of expression and functions in goat granulosa cells. Domest Anim Endocrinol 2024; 89:106859. [PMID: 38810369 DOI: 10.1016/j.domaniend.2024.106859] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/06/2024] [Revised: 05/19/2024] [Accepted: 05/20/2024] [Indexed: 05/31/2024]
Abstract
GATA4 plays a pivotal role in the reproductive processes of mammals. However, the research on GATA4 in goat ovary is limited. This study aimed to study the expression and function of GATA4 in goat ovary. Utilizing real-time PCR and western blot analysis, we studied the expression and regulatory mechanisms of GATA4 in goat ovary and granulosa cells (GCs). We found that GATA4 was expressed in all follicle types in the goat ovary, with significantly higher levels in GCs of larger follicles (>3 mm) compared to those in smaller follicles (<3 mm). Additionally, we demonstrated that human chorionic gonadotrophin (hCG) induced GATA4 mRNA expression via the activation of PKA, MEK, p38 MAPK, PKC, and PI3K pathways in vitro. Our study also showed that hCG suppressed the levels of miR-200b and miR-429, which in turn directly target GATA4, thereby modulating the basal and hCG-induced expression of GATA4. Functionally, we examined the effect of siRNA-mediated GATA4 knockdown on cell proliferation and hormone secretion in goat GCs. Our results revealed that knockdown of GATA4, miR-200b, and miR-429 suppressed cell proliferation. Moreover, knockdown of GATA4 decreased estradiol and progesterone production by inhibiting the promoter activities of CYP11A1, CYP19A1, HSD3B, and StAR. Collectively, our findings suggest a critical involvement of GATA4 in regulating goat GC survival and steroidogenesis.
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Affiliation(s)
- Kexin Gao
- Department of Obstetrics, Affiliated Longhua People's Hospital, Southern Medical University (Longhua People's Hospital), Shenzhen, Guangdong 518109, PR China
| | - Yeda Chen
- Department of Obstetrics, Affiliated Longhua People's Hospital, Southern Medical University (Longhua People's Hospital), Shenzhen, Guangdong 518109, PR China
| | - Peijie Wang
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, PR China
| | - Wenlin Chang
- Department of Obstetrics, Affiliated Longhua People's Hospital, Southern Medical University (Longhua People's Hospital), Shenzhen, Guangdong 518109, PR China
| | - Binyun Cao
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, PR China
| | - Liqiong Luo
- Department of Obstetrics, Affiliated Longhua People's Hospital, Southern Medical University (Longhua People's Hospital), Shenzhen, Guangdong 518109, PR China.
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2
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Pennarossa G, Arcuri S, Gandolfi F, Brevini TAL. Generation of Artificial Blastoids Combining miR-200-Mediated Reprogramming and Mechanical Cues. Cells 2024; 13:628. [PMID: 38607067 PMCID: PMC11011911 DOI: 10.3390/cells13070628] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Revised: 03/29/2024] [Accepted: 04/03/2024] [Indexed: 04/13/2024] Open
Abstract
In vitro-generated blastocyst-like structures are of great importance since they recapitulate specific features or processes of early embryogenesis, thus avoiding ethical concerns as well as increasing scalability and accessibility compared to the use of natural embryos. Here, we combine cell reprogramming and mechanical stimuli to create 3D spherical aggregates that are phenotypically similar to those of natural embryos. Specifically, dermal fibroblasts are reprogrammed, exploiting the miR-200 family property to induce a high plasticity state in somatic cells. Subsequently, miR-200-reprogrammed cells are either driven towards the trophectoderm (TR) lineage using an ad hoc induction protocol or encapsulated into polytetrafluoroethylene micro-bioreactors to maintain and promote pluripotency, generating inner cell mass (ICM)-like spheroids. The obtained TR-like cells and ICM-like spheroids are then co-cultured in the same micro-bioreactor and, subsequently, transferred to microwells to encourage blastoid formation. Notably, the above protocol was applied to fibroblasts obtained from young as well as aged donors, with results that highlighted miR-200's ability to successfully reprogram young and aged cells with comparable blastoid rates, regardless of the donor's cell age. Overall, the approach here described represents a novel strategy for the creation of artificial blastoids to be used in the field of assisted reproduction technologies for the study of peri- and early post-implantation mechanisms.
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Affiliation(s)
- Georgia Pennarossa
- Laboratory of Biomedical Embryology and Tissue Engineering, Department of Health, Animal Science and Food Safety and Center for Stem Cell Research, Università degli Studi di Milano, 20133 Milan, Italy;
| | - Sharon Arcuri
- Laboratory of Biomedical Embryology and Tissue Engineering, Department of Health, Animal Science and Food Safety and Center for Stem Cell Research, Università degli Studi di Milano, 20133 Milan, Italy;
| | - Fulvio Gandolfi
- Department of Agricultural and Environmental Sciences-Production, Landscape, Agroenergy, Università degli Studi di Milano, 20133 Milan, Italy;
| | - Tiziana A. L. Brevini
- Laboratory of Biomedical Embryology and Tissue Engineering, Department of Health, Animal Science and Food Safety and Center for Stem Cell Research, Università degli Studi di Milano, 20133 Milan, Italy;
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3
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Li KX, Li JR, Zuo SJ, Li X, Chen XT, Xiao PY, Li HT, Sun L, Qian T, Zhang HM, Zhu D, Yu XY, Chen G, Jiang XY. Identification of miR-20b-5p as an inhibitory regulator in cardiac differentiation via TET2 and DNA hydroxymethylation. Clin Epigenetics 2024; 16:42. [PMID: 38491513 PMCID: PMC10943922 DOI: 10.1186/s13148-024-01653-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Accepted: 03/06/2024] [Indexed: 03/18/2024] Open
Abstract
BACKGROUND Congenital heart disease (CHD) is a prevalent congenital cardiac malformation, which lacks effective early biological diagnosis and intervention. MicroRNAs, as epigenetic regulators of cardiac development, provide potential biomarkers for the diagnosis and treatment of CHD. However, the mechanisms underlying miRNAs-mediated regulation of cardiac development and CHD malformation remain to be further elucidated. This study aimed to explore the function of microRNA-20b-5p (miR-20b-5p) in cardiac development and CHD pathogenesis. METHODS AND RESULTS miRNA expression profiling identified that miR-20b-5p was significantly downregulated during a 12-day cardiac differentiation of human embryonic stem cells (hESCs), whereas it was markedly upregulated in plasma samples of atrial septal defect (ASD) patients. Our results further revealed that miR-20b-5p suppressed hESCs-derived cardiac differentiation by targeting tet methylcytosine dioxygenase 2 (TET2) and 5-hydroxymethylcytosine, leading to a reduction in key cardiac transcription factors including GATA4, NKX2.5, TBX5, MYH6 and cTnT. Additionally, knockdown of TET2 significantly inhibited cardiac differentiation, which could be partially restored by miR-20b-5p inhibition. CONCLUSIONS Collectively, this study provides compelling evidence that miR-20b-5p functions as an inhibitory regulator in hESCs-derived cardiac differentiation by targeting TET2, highlighting its potential as a biomarker for ASD.
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Affiliation(s)
- Ke-Xin Li
- Affiliated Qingyuan Hospital, Qingyuan People's Hospital, Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, School of Pharmaceutical Science, Guangzhou Medical University, Guangzhou, 511436, China
| | - Jia-Ru Li
- Affiliated Qingyuan Hospital, Qingyuan People's Hospital, Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, School of Pharmaceutical Science, Guangzhou Medical University, Guangzhou, 511436, China
| | - Sheng-Jia Zuo
- Peking University Cancer Hospital Yunnan, Yunnan Cancer Hospital, The Third Affiliated Hospital of Kunming Medical University, Kunming, 650118, China
| | - Xudong Li
- Affiliated Qingyuan Hospital, Qingyuan People's Hospital, Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, School of Pharmaceutical Science, Guangzhou Medical University, Guangzhou, 511436, China
| | - Xian-Tong Chen
- Affiliated Qingyuan Hospital, Qingyuan People's Hospital, Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, School of Pharmaceutical Science, Guangzhou Medical University, Guangzhou, 511436, China
| | - Pei-Yi Xiao
- Affiliated Qingyuan Hospital, Qingyuan People's Hospital, Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, School of Pharmaceutical Science, Guangzhou Medical University, Guangzhou, 511436, China
| | - Hui-Tao Li
- Shenzhen Maternity & Child Healthcare Hospital, Shenzhen, 518028, China
| | - Ling Sun
- Department of Cardiac Pediatrics, Guangdong Provincial Cardiovascular Institute, Guangdong Provincial People's Hospital, Southern Medical University, Guangzhou, 510280, China
| | - Tao Qian
- Affiliated Qingyuan Hospital, Qingyuan People's Hospital, Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, School of Pharmaceutical Science, Guangzhou Medical University, Guangzhou, 511436, China
| | - Hao-Min Zhang
- Affiliated Qingyuan Hospital, Qingyuan People's Hospital, Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, School of Pharmaceutical Science, Guangzhou Medical University, Guangzhou, 511436, China
| | - Dongxing Zhu
- Affiliated Qingyuan Hospital, Qingyuan People's Hospital, Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, School of Pharmaceutical Science, Guangzhou Medical University, Guangzhou, 511436, China
| | - Xi-Yong Yu
- Affiliated Qingyuan Hospital, Qingyuan People's Hospital, Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, School of Pharmaceutical Science, Guangzhou Medical University, Guangzhou, 511436, China.
| | - Guojun Chen
- Department of Cardiology, State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Cardiac Function and Microcirculation, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China.
| | - Xue-Yan Jiang
- Affiliated Qingyuan Hospital, Qingyuan People's Hospital, Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, School of Pharmaceutical Science, Guangzhou Medical University, Guangzhou, 511436, China.
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Synergistic Effect of miR-200 and Young Extracellular Matrix-based Bio-scaffolds to Reduce Signs of Aging in Senescent Fibroblasts. Stem Cell Rev Rep 2023; 19:417-429. [PMID: 36029367 PMCID: PMC9418657 DOI: 10.1007/s12015-022-10438-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/26/2022] [Indexed: 02/07/2023]
Abstract
Aging is defined as a complex, multifaceted degenerative process that causes a gradual decline of physiological functions and a rising mortality risk with time. Stopping senescence or even rejuvenating the body represent one of the long-standing human dreams. Somatic cell nuclear transfer as well as cell reprogramming have suggested the possibility to slow or even reverse signs of aging. We exploited miR-200 family ability to induce a transient high plasticity state in human skin fibroblasts isolated from old individuals and we investigated whether this ameliorates cellular and physiological hallmarks of senescence. In addition, based on the assumption that extracellular matrix (ECM) provides biomechanical stimuli directly influencing cell behavior, we examine whether ECM-based bio-scaffolds, obtained from decellularized ovaries of young swine, stably maintain the rejuvenated phenotype acquired by cells after miR-200 exposure. The results show the existence of multiple factors that cooperate to control a unique program, driving the cell clock. In particular, miR-200 family directly regulates the molecular mechanisms erasing cell senescence. However, this effect is transient, reversible, and quickly lost. On the other hand, the use of an adequate young microenvironment stabilizes the miR-200-mediated rejuvenating effects, suggesting that synergistic interactions occur among molecular effectors and ECM-derived biomechanical stimuli. The model here described is a useful tool to better characterize these complex regulations and to finely dissect the multiple and concurring biochemical and biomechanical cues driving the cell biological clock.
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5
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Chen W, Huang W, Pather SR, Chang W, Sung L, Wu H, Liao M, Lee C, Wu H, Wu C, Liao K, Lin C, Yang S, Lin H, Lai P, Ng C, Hu C, Chen I, Chuang C, Lai C, Lin P, Lee Y, Schuyler SC, Schambach A, Lu FL, Lu J. Podocalyxin-Like Protein 1 Regulates Pluripotency through the Cholesterol Biosynthesis Pathway. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 10:e2205451. [PMID: 36373710 PMCID: PMC9811443 DOI: 10.1002/advs.202205451] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Indexed: 06/16/2023]
Abstract
Deciphering signaling mechanisms critical for the extended pluripotent stem cell (EPSC) state and primed pluripotency is necessary for understanding embryonic development. Here, a membrane protein, podocalyxin-like protein 1 (PODXL) as being essential for extended and primed pluripotency, is identified. Alteration of PODXL expression levels affects self-renewal, protein expression of c-MYC and telomerase, and induced pluripotent stem cell (iPSC) and EPSC colony formation. PODXL is the first membrane protein reported to regulate de novo cholesterol biosynthesis, and human pluripotent stem cells (hPSCs) are more sensitive to cholesterol depletion than fibroblasts. The addition of exogenous cholesterol fully restores PODXL knockdown-mediated loss of pluripotency. PODXL affects lipid raft dynamics via the regulation of cholesterol. PODXL recruits the RAC1/CDC42/actin network to regulate SREBP1 and SREBP2 maturation and lipid raft dynamics. Single-cell RNA sequencing reveals PODXL overexpression enhanced chimerism between human cells in mouse host embryos (hEPSCs 57%). Interestingly, in the human-mouse chimeras, laminin and collagen signaling-related pathways are dominant in PODXL overexpressing cells. It is concluded that cholesterol regulation via PODXL signaling is critical for ESC/EPSC.
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Affiliation(s)
- Wei‐Ju Chen
- Genomics Research CenterAcademia SinicaGenome and Systems Biology Degree ProgramCollege of Life ScienceNational Taiwan UniversityTaipei10617Taiwan
- Genomics Research CenterAcademia SinicaTaipei11529Taiwan
| | - Wei‐Kai Huang
- Center for Genomic MedicineMassachusetts General HospitalBostonMA02114USA
| | - Sarshan R. Pather
- Cell and Molecular Biology Graduate GroupPerelman School of MedicineUniversity of PennsylvaniaPhiladelphiaPA19104USA
| | - Wei‐Fang Chang
- Institute of BiotechnologyNational Taiwan UniversityTaipei10617Taiwan
| | - Li‐Ying Sung
- Institute of BiotechnologyNational Taiwan UniversityTaipei10617Taiwan
- Agricultural Biotechnology Research CenterAcademia SinicaTaipei11529Taiwan
- Animal Resource CenterNational Taiwan UniversityTaipei10617Taiwan
| | - Han‐Chung Wu
- Institute of Cellular and Organismic BiologyAcademia SinicaTaipei11529Taiwan
- Biomedical Translation Research Center (BioTReC)Academia SinicaTaipei11529Taiwan
| | - Mei‐Ying Liao
- Institute of Cellular and Organismic BiologyAcademia SinicaTaipei11529Taiwan
| | - Chi‐Chiu Lee
- Institute of Cellular and Organismic BiologyAcademia SinicaTaipei11529Taiwan
| | - Hsuan‐Hui Wu
- Institute of Cellular and Organismic BiologyAcademia SinicaTaipei11529Taiwan
| | - Chung‐Yi Wu
- Genomics Research CenterAcademia SinicaTaipei11529Taiwan
| | | | - Chun‐Yu Lin
- Genomics Research CenterAcademia SinicaTaipei11529Taiwan
| | | | - Hsuan Lin
- Genomics Research CenterAcademia SinicaTaipei11529Taiwan
| | - Pei‐Lun Lai
- Genomics Research CenterAcademia SinicaTaipei11529Taiwan
| | - Chi‐Hou Ng
- Genomics Research CenterAcademia SinicaTaipei11529Taiwan
| | - Chun‐Mei Hu
- Genomics Research CenterAcademia SinicaTaipei11529Taiwan
| | - I‐Chih Chen
- Genomics Research CenterAcademia SinicaTaipei11529Taiwan
| | | | - Chien‐Ying Lai
- Genomics Research CenterAcademia SinicaTaipei11529Taiwan
| | - Po‐Yu Lin
- Genomics Research CenterAcademia SinicaTaipei11529Taiwan
| | - Yueh‐Chang Lee
- Department of OphthalmologyHualien Tzu Chi HospitalBuddhist Tzu Chi Medical FoundationHualien97004Taiwan
| | - Scott C. Schuyler
- Department of Biomedical SciencesCollege of MedicineChang Gung UniversityDivision of Head and Neck SurgeryDepartment of OtolaryngologyChang Gung Memorial HospitalTaoyuan33302Taiwan
| | - Axel Schambach
- Institute of Experimental HematologyHannover Medical School30625HannoverGermany
| | - Frank Leigh Lu
- Department of PediatricsNational Taiwan University Hospital and National Taiwan University Medical CollegeTaipei10051Taiwan
| | - Jean Lu
- Genomics Research CenterAcademia SinicaGenome and Systems Biology Degree ProgramCollege of Life ScienceNational Taiwan UniversityTaipei10617Taiwan
- Genomics Research CenterAcademia SinicaTaipei11529Taiwan
- National RNAi Platform/ National Core Facility Program for BiotechnologyTaipei11529Taiwan
- Department of Life ScienceTzu Chi UniversityHualien97004Taiwan
- Graduate Institute of Medical SciencesNational Defense Medical CenterTaipei11490Taiwan
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MiR-200c-3p maintains stemness and proliferative potential in adipose-derived stem cells by counteracting senescence mechanisms. PLoS One 2021; 16:e0257070. [PMID: 34534238 PMCID: PMC8448302 DOI: 10.1371/journal.pone.0257070] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Accepted: 08/24/2021] [Indexed: 01/22/2023] Open
Abstract
Adipose-derived mesenchymal stem cells (ASCs) are promising therapeutic tools in regenerative medicine because they possess self-renewal, differentiation and immunomodulatory capacities. After isolation, ASCs are passaged multiple times in vitro passages to obtain a sufficient amount of cells for clinical applications. During this time-consuming procedure, ASCs become senescent and less proliferative, compromising their clinical efficacy. Here, we sought to investigate how in vitro passages impact ASC proliferation/senescence and expression of immune regulatory proteins. MicroRNAs are pivotal regulators of ASC physiology. Particularly, miR-200c is known to maintain pluripotency and targets the immune checkpoint Programmed death-ligand 1 (PD-L1). We therefore investigated its involvement in these critical characteristics of ASCs during in vitro passages. We found that when transiently expressed, miR-200c-3p promotes proliferation, maintains stemness, and contrasts senescence in late passaged ASCs. Additionally, this miRNA modulates PD-L1 and Indoleamine 2,3-Dioxygenase (IDO1) expression, thus most likely interfering with the immunoregulatory capacity of ASCs. Based on our results, we suggest that expression of miR-200c-3p may prime ASC towards a self-renewing phenotype by improving their in vitro expansion. Contrarily, its inhibition is associated with senescence, reduced proliferation and induction of immune regulators. Our data underline the potential use of miR-200c-3p as a switch for ASCs reprogramming and their clinical application.
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Divisato G, Piscitelli S, Elia M, Cascone E, Parisi S. MicroRNAs and Stem-like Properties: The Complex Regulation Underlying Stemness Maintenance and Cancer Development. Biomolecules 2021; 11:biom11081074. [PMID: 34439740 PMCID: PMC8393604 DOI: 10.3390/biom11081074] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2021] [Revised: 07/13/2021] [Accepted: 07/19/2021] [Indexed: 12/12/2022] Open
Abstract
Embryonic stem cells (ESCs) have the extraordinary properties to indefinitely proliferate and self-renew in culture to produce different cell progeny through differentiation. This latter process recapitulates embryonic development and requires rounds of the epithelial-mesenchymal transition (EMT). EMT is characterized by the loss of the epithelial features and the acquisition of the typical phenotype of the mesenchymal cells. In pathological conditions, EMT can confer stemness or stem-like phenotypes, playing a role in the tumorigenic process. Cancer stem cells (CSCs) represent a subpopulation, found in the tumor tissues, with stem-like properties such as uncontrolled proliferation, self-renewal, and ability to differentiate into different cell types. ESCs and CSCs share numerous features (pluripotency, self-renewal, expression of stemness genes, and acquisition of epithelial-mesenchymal features), and most of them are under the control of microRNAs (miRNAs). These small molecules have relevant roles during both embryogenesis and cancer development. The aim of this review was to recapitulate molecular mechanisms shared by ESCs and CSCs, with a special focus on the recently identified classes of microRNAs (noncanonical miRNAs, mirtrons, isomiRs, and competitive endogenous miRNAs) and their complex functions during embryogenesis and cancer development.
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Wang H, Wang M, Wen Y, Xu C, Chen X, Wu D, Su P, Zhou W, Cheng T, Shi L, Zhou J. Biphasic Regulation of Mesenchymal Genes Controls Fate Switches During Hematopoietic Differentiation of Human Pluripotent Stem Cells. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2020; 7:2001019. [PMID: 33101849 PMCID: PMC7578858 DOI: 10.1002/advs.202001019] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Revised: 07/10/2020] [Indexed: 05/03/2023]
Abstract
Epithelial-mesenchymal transition (EMT) or its reverse process mesenchymal-epithelial transition (MET) occurs in multiple physiological and pathological processes. However, whether an entire EMT-MET process exists and the potential function during human hematopoiesis remain largely elusive. Utilizing human pluripotent stem cell (hPSC)-based systems, it is discovered that while EMT occurs at the onset of human hematopoietic differentiation, MET is not detected subsequently during differentiation. Instead, a biphasic activation of mesenchymal genes during hematopoietic differentiation of hPSCs is observed. The expression of mesenchymal genes is upregulated during the fate switch from pluripotency to the mesoderm, sustained at the hemogenic endothelium (HE) stage, and attenuated during hemogenic endothelial cell (HEP) differentiation to hematopoietic progenitor cells (HPCs). A similar expression pattern of mesenchymal genes is also observed during human and murine hematopoietic development in vivo. Wnt signaling and its downstream gene SNAI1 mediate the up-regulation of mesenchymal genes and initiation of mesoderm induction from pluripotency. Inhibition of transforming growth factor-β (TGF-β) signaling and downregulation of HAND1, a downstream gene of TGF-β, are required for the downregulation of mesenchymal genes and the capacity of HEPs to generate HPCs. These results suggest that the biphasic regulation of mesenchymal genes is an essential mechanism during human hematopoiesis.
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Affiliation(s)
- Hongtao Wang
- State Key Laboratory of Experimental HematologyNational Clinical Research Center for Blood DiseasesInstitute of Hematology & Blood Diseases HospitalChinese Academy of Medical Sciences & Peking Union Medical CollegeTianjin300020China
- CAMS Center for Stem Cell MedicinePUMC Department of Stem Cell and Regenerative MedicineTianjin300020China
| | - Mengge Wang
- State Key Laboratory of Experimental HematologyNational Clinical Research Center for Blood DiseasesInstitute of Hematology & Blood Diseases HospitalChinese Academy of Medical Sciences & Peking Union Medical CollegeTianjin300020China
- CAMS Center for Stem Cell MedicinePUMC Department of Stem Cell and Regenerative MedicineTianjin300020China
| | - Yuqi Wen
- State Key Laboratory of Experimental HematologyNational Clinical Research Center for Blood DiseasesInstitute of Hematology & Blood Diseases HospitalChinese Academy of Medical Sciences & Peking Union Medical CollegeTianjin300020China
- CAMS Center for Stem Cell MedicinePUMC Department of Stem Cell and Regenerative MedicineTianjin300020China
| | - Changlu Xu
- State Key Laboratory of Experimental HematologyNational Clinical Research Center for Blood DiseasesInstitute of Hematology & Blood Diseases HospitalChinese Academy of Medical Sciences & Peking Union Medical CollegeTianjin300020China
- CAMS Center for Stem Cell MedicinePUMC Department of Stem Cell and Regenerative MedicineTianjin300020China
| | - Xiaoyuan Chen
- State Key Laboratory of Experimental HematologyNational Clinical Research Center for Blood DiseasesInstitute of Hematology & Blood Diseases HospitalChinese Academy of Medical Sciences & Peking Union Medical CollegeTianjin300020China
- CAMS Center for Stem Cell MedicinePUMC Department of Stem Cell and Regenerative MedicineTianjin300020China
| | - Dan Wu
- State Key Laboratory of Experimental HematologyNational Clinical Research Center for Blood DiseasesInstitute of Hematology & Blood Diseases HospitalChinese Academy of Medical Sciences & Peking Union Medical CollegeTianjin300020China
- CAMS Center for Stem Cell MedicinePUMC Department of Stem Cell and Regenerative MedicineTianjin300020China
| | - Pei Su
- State Key Laboratory of Experimental HematologyNational Clinical Research Center for Blood DiseasesInstitute of Hematology & Blood Diseases HospitalChinese Academy of Medical Sciences & Peking Union Medical CollegeTianjin300020China
- CAMS Center for Stem Cell MedicinePUMC Department of Stem Cell and Regenerative MedicineTianjin300020China
| | - Wen Zhou
- School of Basic Medical Science and Cancer Research InstituteCentral South UniversityChangsha410013China
| | - Tao Cheng
- State Key Laboratory of Experimental HematologyNational Clinical Research Center for Blood DiseasesInstitute of Hematology & Blood Diseases HospitalChinese Academy of Medical Sciences & Peking Union Medical CollegeTianjin300020China
- CAMS Center for Stem Cell MedicinePUMC Department of Stem Cell and Regenerative MedicineTianjin300020China
| | - Lihong Shi
- State Key Laboratory of Experimental HematologyNational Clinical Research Center for Blood DiseasesInstitute of Hematology & Blood Diseases HospitalChinese Academy of Medical Sciences & Peking Union Medical CollegeTianjin300020China
- CAMS Center for Stem Cell MedicinePUMC Department of Stem Cell and Regenerative MedicineTianjin300020China
| | - Jiaxi Zhou
- State Key Laboratory of Experimental HematologyNational Clinical Research Center for Blood DiseasesInstitute of Hematology & Blood Diseases HospitalChinese Academy of Medical Sciences & Peking Union Medical CollegeTianjin300020China
- CAMS Center for Stem Cell MedicinePUMC Department of Stem Cell and Regenerative MedicineTianjin300020China
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9
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A Modified Magnified Analysis of Proteome (MAP) Method for Super-Resolution Cell Imaging that Retains Fluorescence. Sci Rep 2020; 10:4186. [PMID: 32144302 PMCID: PMC7060248 DOI: 10.1038/s41598-020-61156-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Accepted: 02/21/2020] [Indexed: 12/03/2022] Open
Abstract
Biological systems consist of a variety of distinct cell types that form functional networks. Super-resolution imaging of individual cells is required for better understanding of these complex systems. Direct visualization of 3D subcellular and nano-scale structures in cells is helpful for the interpretation of biological interactions and system-level responses. Here we introduce a modified magnified analysis of proteome (MAP) method for cell super-resolution imaging (Cell-MAP) which preserves cell fluorescence. Cell-MAP expands cells more than four-fold while preserving their overall architecture and three-dimensional proteome organization after hydrogel embedding. In addition, Optimized-Cell-MAP completely preserves fluorescence and successfully allows for the observation of tagged small molecular probes containing peptides and microRNAs. Optimized-Cell-MAP further successfully applies to the study of structural characteristics and the identification of small molecules and organelles in mammalian cells. These results may give rise to many other applications related to the structural and molecular analysis of smaller assembled biological systems.
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10
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Liew LC, Gailhouste L, Tan GC, Yamamoto Y, Takeshita F, Nakagama H, Ochiya T. MicroRNA-124a inhibits endoderm lineage commitment by targeting Sox17 and Gata6 in mouse embryonic stem cells. Stem Cells 2019; 38:504-515. [PMID: 31828873 PMCID: PMC7187259 DOI: 10.1002/stem.3136] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2019] [Accepted: 11/22/2019] [Indexed: 01/18/2023]
Abstract
The role of microRNAs (miRNAs) during mouse early development, especially in endoderm germ layer formation, is largely unknown. Here, via miRNA profiling during endoderm differentiation, we discovered that miR‐124a negatively regulates endoderm lineage commitment in mouse embryonic stem cells (mESCs). To further investigate the functional role of miR‐124a in early stages of differentiation, transfection of embryoid bodies with miR‐124a mimic was performed. We showed that overexpression of miR‐124a inhibits endoderm differentiation in vitro through targeting the 3′‐untranslated region (UTR) of Sox17 and Gata6, revealing the existence of interplay between miR‐124a and the Sox17/Gata6 transcription factors in hepato‐specific gene regulation. In addition, we presented a feasible in vivo system that utilizes teratoma and gene expression profiling from microarray to quantitatively evaluate the functional role of miRNA in lineage specification. We demonstrated that ectopic expression of miR‐124a in teratomas by intratumor delivery of miR‐124a mimic and Atelocollagen, significantly suppressed endoderm and mesoderm lineage differentiation while augmenting the differentiation into ectoderm lineage. Collectively, our findings suggest that miR‐124a plays a significant role in mESCs lineage commitment.
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Affiliation(s)
- Lee Chuen Liew
- Division of Molecular and Cellular Medicine, National Cancer Center Research Institute, Tokyo, Japan.,Department of Pathology, Immunology and Microbiology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Luc Gailhouste
- Division of Molecular and Cellular Medicine, National Cancer Center Research Institute, Tokyo, Japan.,Liver Cancer Prevention Research Unit, RIKEN Cluster for Pioneering Research, Saitama, Japan
| | - Geok Chin Tan
- Department of Pathology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Yusuke Yamamoto
- Division of Molecular and Cellular Medicine, National Cancer Center Research Institute, Tokyo, Japan
| | - Fumitaka Takeshita
- Department of Functional Analysis, FIOC, National Cancer Center Research Institute, Tokyo, Japan
| | - Hitoshi Nakagama
- Department of Pathology, Immunology and Microbiology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.,National Cancer Center, Tokyo, Japan
| | - Takahiro Ochiya
- Division of Molecular and Cellular Medicine, National Cancer Center Research Institute, Tokyo, Japan.,Department of Molecular and Cellular Medicine, Tokyo Medical University, Tokyo, Japan
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11
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Poon ENY, Hao B, Guan D, Jun Li M, Lu J, Yang Y, Wu B, Wu SCM, Webb SE, Liang Y, Miller AL, Yao X, Wang J, Yan B, Boheler KR. Integrated transcriptomic and regulatory network analyses identify microRNA-200c as a novel repressor of human pluripotent stem cell-derived cardiomyocyte differentiation and maturation. Cardiovasc Res 2019; 114:894-906. [PMID: 29373717 DOI: 10.1093/cvr/cvy019] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/28/2017] [Accepted: 01/22/2018] [Indexed: 11/12/2022] Open
Abstract
Aims MicroRNAs (miRNAs) are crucial for the post-transcriptional control of protein-encoding genes and together with transcription factors (TFs) regulate gene expression; however, the regulatory activities of miRNAs during cardiac development are only partially understood. In this study, we tested the hypothesis that integrative computational approaches could identify miRNAs that experimentally could be shown to regulate cardiomyogenesis. Methods and results We integrated expression profiles with bioinformatics analyses of miRNA and TF regulatory programs to identify candidate miRNAs involved with cardiac development. Expression profiling showed that miR-200c, which is not normally detected in adult heart, is progressively down-regulated both during cardiac development and in vitro differentiation of human embryonic stem cells (hESCs) to cardiomyocytes (CMs). We employed computational methodologies to predict target genes of both miR-200c and five key cardiac TFs to identify co-regulated gene networks. The inferred cardiac networks revealed that the cooperative action of miR-200c with these five key TFs, including three (GATA4, SRF and TBX5) targeted by miR-200c, should modulate key processes and pathways necessary for CM development and function. Experimentally, over-expression (OE) of miR-200c in hESC-CMs reduced the mRNA levels of GATA4, SRF and TBX5. Cardiac expression of Ca2+, K+ and Na+ ion channel genes (CACNA1C, KCNJ2 and SCN5A) were also significantly altered by knockdown or OE of miR-200c. Luciferase reporter assays validated miR-200c binding sites on the 3' untranslated region of CACNA1C. In hESC-CMs, elevated miR-200c increased beating frequency, and repressed both Ca2+ influx, mediated by the L-type Ca2+ channel and Ca2+ transients. Conclusions Our analyses demonstrate that miR-200c represses hESC-CM differentiation and maturation. The integrative computation and experimental approaches described here, when applied more broadly, will enhance our understanding of the interplays between miRNAs and TFs in controlling cardiac development and disease processes.
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Affiliation(s)
- Ellen Ngar-Yun Poon
- School of Biomedical Sciences, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong, China.,Department of Paediatrics and Adolescent Medicine, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong, China
| | - Baixia Hao
- Division of Life Science and State Key Laboratory of Molecular Neuroscience, The Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, China
| | - Daogang Guan
- School of Chinese Medicine, Hong Kong Baptist University, Hong Kong, China
| | - Mulin Jun Li
- Department of Pharmacology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin, China.,Centre of Genomics Sciences, LKS Faculty of Medicine, The University of Hong Kong. Hong Kong, China
| | - Jun Lu
- School of Biomedical Sciences, LSK Institute of Health Science, The Chinese University of Hong Kong, Hong Kong, China
| | - Yong Yang
- Laboratory for Food Safety and Environmental Technology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, 1068 Xueyuan Ave, Shenzhen, Guangdong 518055, China
| | - Binbin Wu
- Laboratory for Food Safety and Environmental Technology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, 1068 Xueyuan Ave, Shenzhen, Guangdong 518055, China
| | - Stanley Chun-Ming Wu
- School of Biomedical Sciences, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong, China
| | - Sarah E Webb
- Division of Life Science and State Key Laboratory of Molecular Neuroscience, The Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, China
| | - Yan Liang
- Laboratory for Food Safety and Environmental Technology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, 1068 Xueyuan Ave, Shenzhen, Guangdong 518055, China
| | - Andrew L Miller
- Division of Life Science and State Key Laboratory of Molecular Neuroscience, The Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, China.,Marine Biology Laboratory, Woods Hole, MA 02543, USA
| | - Xiaoqiang Yao
- School of Biomedical Sciences, LSK Institute of Health Science, The Chinese University of Hong Kong, Hong Kong, China
| | - Junwen Wang
- Centre of Genomics Sciences, LKS Faculty of Medicine, The University of Hong Kong. Hong Kong, China.,Center for Individualized Medicine, Department of Health Sciences Research, Mayo Clinic, Scottsdale, AZ 85259, USA and Department of Biomedical Informatics, Arizona State University, Scottsdale, AZ 85259, USA
| | - Bin Yan
- School of Biomedical Sciences, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong, China.,Centre of Genomics Sciences, LKS Faculty of Medicine, The University of Hong Kong. Hong Kong, China.,Laboratory for Food Safety and Environmental Technology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, 1068 Xueyuan Ave, Shenzhen, Guangdong 518055, China
| | - Kenneth R Boheler
- School of Biomedical Sciences, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong, China.,Division of Cardiology, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
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12
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Mashayekhi P, Noruzinia M, Zeinali S, Khodaverdi S. Endometriotic Mesenchymal Stem Cells Epigenetic Pathogenesis: Deregulation of miR-200b, miR-145, and let7b in A Functional Imbalanced Epigenetic Disease. CELL JOURNAL 2019; 21:179-185. [PMID: 30825291 PMCID: PMC6397607 DOI: 10.22074/cellj.2019.5903] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/13/2018] [Accepted: 07/07/2018] [Indexed: 12/31/2022]
Abstract
Objective Stem cell issue is a strong theory in endometriosis pathogenesis. It seems that endometriotic mesenchymal stem cells (MSCs) show different characteristics compared to the normal MSCs. Determined high proliferation and low differentiation/decidualization potential of endometriotic MSCs could be accompanied by their microRNAs deregulation influencing their fate and function. In this study for the first time, we evaluated the expression of miR-200b, miR-145, and let-7b in endometriotic compared to non-endometriotic MSCs. These microRNAs are involved in biological pathways related to proliferation and differentiation of stem cells. Their aberrant expressions can disturb the proliferation/ differentiation balance in stem cells, altering their function and causing various diseases, like endometriosis. Materials and Methods In this experimental study, MSCs were isolated from three endometriotic and three nonendometriotic eutopic endometrium, followed by their characterization and culture. Expression of miR-200b, miR-145, and let-7b was ultimately analyzed by quantitative reverse transcription polymerase chain reaction (qRT-PCR). Results We found that the expression of miR-200b was up-regulated (P<0.0001) whereas the expression of miR-145 and let-7b was down-regulated (P<0.0001) in endometriotic MSCs in comparison with non-endometriotic normal controls. Conclusion Proliferation and differentiation are important dynamic balanced biological processes, while in equillibrium, they determine a healthy stem cell fate. It seems that they are deregulated in endometriotic MSCs and change their function. miR-200b, miR-145, and let-7b are deregulated during endometriosis and they have pivotal roles in the modulating proliferation and differentiation of stem cells. We found up-regulation of miR-200b and down-regulation of miR-145 and let-7b in endometriotic MSCs. These changes can increase self-renewal and migration, while decreasing differentiation of endometriotic MSCs. Our achievements emphasize previous findings on the importance of proliferation/ differentiation balance in MSCs and clarify the role of microRNAs as main players in faulty endometriotic stem cells development.
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Affiliation(s)
- Parisa Mashayekhi
- Cellular and Molecular Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Mehrdad Noruzinia
- Department of Medical Genetics, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran. Electronic Address:
| | - Sirous Zeinali
- Biotechnology Research Center, Pasteur Institute of Iran, Tehran, Iran
| | - Sepideh Khodaverdi
- Endometriosis Research Center, Iran University of Medical Science, Tehran, Iran
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13
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Abstract
Loss of miR-200c is correlated to advanced cancer-subtypes due to increased EMT and decreased treatment efficacy by chemotherapeutics. As miRNAs regulate a multitude of targets, the analysis of differentially expressed proteins upon a genomic knock-out (KO) is of interest. In this study, we generated a TALENs KO of miR-200c in MCF7 breast cancer cells, excluded its compensation by family-members and evaluated the impact on the proteome by analyzing three individual KO-clones. We identified 26 key proteins and a variety of enrichments in metabolic and cytoskeletal pathways. In six of these targets (AGR2, FLNA/B, ALDH7A1, SCIN, GSTM3) the differential expression was additionally detected at mRNA level. Together, these alterations in protein abundance accounted for the observed biological phenotypes, i.e. increased migration and chemoresistance and altered metabolism, found in the miR-200c-KO clones. These findings provide novel insights into miR-200c and pave the way for further studies.
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14
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Sherstyuk VV, Medvedev SP, Ri MT, Vyatkin YV, Saik OV, Shtokalo DN, Zakian SM. The search for microRNAs potentially involved in the selfrenewal maintaining of laboratory rat pluripotent stem cells. Vavilovskii Zhurnal Genet Selektsii 2018. [DOI: 10.18699/vj18.345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Self-renewal of cultured pluripotent stem cells is a complex process, which includes multiple functional and regulatory levels. Transcription factors, their target genes, chromatin modifiers, signaling pathways, and regulatory noncoding RNAs are involved in the maintaining of self-renewal. Studies of molecular and genetic bases of maintaining self-renewal and pluripotency in cultured mammalian cells are important to understand processes in preimplantation embryogenesis and to develop efficient techniques to obtain pluripotent stem cell lines for experimental biology and medicine. MicroRNAs (miRNAs) play an important role in pluripotency maintaining and reprogramming. However, involvement of this class of noncoding RNAs and functions of individual molecules are poorly studied. The goal of this study was the search for the miRNAs potentially involved in the pluripotency maintaining and reprogramming of Rattus norvegicus cells. We analyzed the expression of miRNAs in rat embryonic stem cells, induced pluripotent stem cells and embryonic fibroblasts using bioinformatic methods and data obtained with next generation sequencing. The analysis of differential expression between groups of rat pluripotent cells and fibroblasts, and the analysis of experimentally confirmed target genes of differentially expressed known rat miRNAs revealed novel potential players of pluripotency maintaining and reprogramming processes. In addition, novel members of these processes were revealed among novel rat miRNAs. The use of bioinformatic and systems biology approaches is the first step, which is necessary for choosing candidates for the subsequent experimental studies. The results obtained substantially improve our understanding of the self-renewal regulation system of the laboratory rat, a popular biomedical object, and our knowledge about the system in mammals.
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Affiliation(s)
- V. V. Sherstyuk
- Institute of Cytology and Genetics SB RAS; E.N. Meshalkin National Medical Research Center, Ministry of Health of Russian Federation; Institute of Chemical Biology and Fundamental Medicine SB RAS; Novosibirsk State University
| | - S. P. Medvedev
- Institute of Cytology and Genetics SB RAS; E.N. Meshalkin National Medical Research Center, Ministry of Health of Russian Federation; Institute of Chemical Biology and Fundamental Medicine SB RAS; Novosibirsk State University
| | - M. T. Ri
- AcademGene LLC; St. Laurent Institute
| | - Y. V. Vyatkin
- Institute of Cytology and Genetics SB RAS; Novosibirsk State University; AcademGene LLC; St. Laurent Institute
| | - O. V. Saik
- Institute of Cytology and Genetics SB RAS
| | - D. N. Shtokalo
- Institute of Cytology and Genetics SB RAS; AcademGene LLC; St. Laurent Institute; A.P. Ershov Institute of Informatics Systems SB RAS
| | - S. M. Zakian
- Institute of Cytology and Genetics SB RAS; E.N. Meshalkin National Medical Research Center, Ministry of Health of Russian Federation; Institute of Chemical Biology and Fundamental Medicine SB RAS; Novosibirsk State University
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15
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Liu X, Li Z, Wang B, Zhu H, Liu Y, Qi J, Zhang Q. GATA4 is a transcriptional regulator of R-spondin1 in Japanese flounder (Paralichthys olivaceus). Gene 2018; 648:68-75. [PMID: 29331483 DOI: 10.1016/j.gene.2018.01.041] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2017] [Revised: 12/21/2017] [Accepted: 01/09/2018] [Indexed: 10/18/2022]
Abstract
GATA4 is a well-known transcription factor of the GATA family implicated in regulation of sex determination and gonadal development in mammals. In this study, we cloned the full-length cDNA of Paralichthys olivaceus gata4 (Po-gata4). Phylogenetic, gene structure, and synteny analysis showed that Po-GATA4 is homologous to GATA4 of teleost and tetrapod. Po-gata4 transcripts were detected in Sertoli cells, spermatogonia, oogonia and oocytes, with higher transcript levels overall in the testis than the ovary. The promoter region of P. olivaceus R-spondin1was found to contain a GATA4-binding motif. Results of CBA (cleaved amplified polymorphic sequence-based binding assay) indicated that GATA4 could indeed bind to the promoter sequence of R-spondin1. Moreover, human GATA4 recombinant protein could upregulate R-spondin1 in P. olivaceus ovary cells and FBCs (flounder brain cell line). In FBCs, overexpression of Po-gata4 resulted in elevated transcript levels of R-spondin1. Taken together, our results indicate that Po-GATA4 is involved in gonadal development by regulating R-spondin1 expression.
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Affiliation(s)
- Xiumei Liu
- Key Laboratory of Marine Genetics and Breeding (Ocean University of China), Ministry of Education, 266003 Qingdao, Shandong, China
| | - Zan Li
- Key Laboratory of Marine Genetics and Breeding (Ocean University of China), Ministry of Education, 266003 Qingdao, Shandong, China
| | - Bo Wang
- Key Laboratory of Marine Genetics and Breeding (Ocean University of China), Ministry of Education, 266003 Qingdao, Shandong, China
| | - He Zhu
- Key Laboratory of Marine Genetics and Breeding (Ocean University of China), Ministry of Education, 266003 Qingdao, Shandong, China
| | - Yuezhong Liu
- Key Laboratory of Marine Genetics and Breeding (Ocean University of China), Ministry of Education, 266003 Qingdao, Shandong, China
| | - Jie Qi
- Key Laboratory of Marine Genetics and Breeding (Ocean University of China), Ministry of Education, 266003 Qingdao, Shandong, China.
| | - Quanqi Zhang
- Key Laboratory of Marine Genetics and Breeding (Ocean University of China), Ministry of Education, 266003 Qingdao, Shandong, China; Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, PR China
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16
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Bozzi F, Brich S, Dagrada GP, Negri T, Conca E, Cortelazzi B, Belfiore A, Perrone F, Gualeni AV, Gloghini A, Cabras A, Brenca M, Maestro R, Zaffaroni N, Casali P, Bertulli R, Deraco M, Pilotti S. Epithelioid peritoneal mesothelioma: a hybrid phenotype within a mesenchymal-epithelial/epithelial-mesenchymal transition framework. Oncotarget 2018; 7:75503-75517. [PMID: 27705913 PMCID: PMC5342756 DOI: 10.18632/oncotarget.12262] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2016] [Accepted: 09/13/2016] [Indexed: 12/18/2022] Open
Abstract
The aim of this study was to reconsider the biological characteristics of epithelioid malignant peritoneal mesothelioma (E-MpM) in the light of new concepts about epithelial mesenchymal transition and mesenchymal epithelial reverse transition (EMT/MErT) and the role of epigenetic reprogramming in this context. To this end we profiled surgical specimens and derived cells cultures by a number of complementary approaches i.e. immunohistochemistry, immunofluorescence, in situ hybridization, biochemistry, pluripotent stem cell arrays, treatments with cytokines, growth factors and specific inhibitors.The analyses of the surgical specimens showed that i) EZH2 is expressed throughout the spectrum of MpM, ii) that E-MpM (including the high-grade undifferentiated form) are characterised by c-MYC and miRNA 17-5p expression, and iii) that progression to sarcomatoid MpM is dictated by EMT regulators. They also showed that E-MpM expressed c-MET and are enriched in E- and P-cadherins- and VEGFR2-expressing CSCs, thus strongly supporting a role for MErT reprogramming in endowing E-MpM tumour cells with stemness and plasticity, and hence with a drug resistant phenotype. The cell culture-based experiments confirmed the stemness traits and plasticity of E-MpM, and support the view that EZH2 is a druggable target in this tumor.
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Affiliation(s)
- Fabio Bozzi
- Laboratory of Experimental Molecular Pathology, Department of Pathology and Laboratory Medicine, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Silvia Brich
- Laboratory of Experimental Molecular Pathology, Department of Pathology and Laboratory Medicine, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy.,MOSE-DEA University of Trieste, Trieste, Italy
| | - Gian Paolo Dagrada
- Laboratory of Experimental Molecular Pathology, Department of Pathology and Laboratory Medicine, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Tiziana Negri
- Laboratory of Experimental Molecular Pathology, Department of Pathology and Laboratory Medicine, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Elena Conca
- Laboratory of Experimental Molecular Pathology, Department of Pathology and Laboratory Medicine, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Barbara Cortelazzi
- Laboratory of Experimental Molecular Pathology, Department of Pathology and Laboratory Medicine, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Antonino Belfiore
- Laboratory of Experimental Molecular Pathology, Department of Pathology and Laboratory Medicine, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Federica Perrone
- Department of Diagnostic Pathology and Laboratory Medicine, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Ambra Vittoria Gualeni
- Department of Diagnostic Pathology and Laboratory Medicine, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Annunziata Gloghini
- Department of Diagnostic Pathology and Laboratory Medicine, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Antonello Cabras
- Department of Diagnostic Pathology and Laboratory Medicine, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Monica Brenca
- Experimental Oncology 1, Centro di Riferimento Oncologico, CRO Aviano National Cancer Institute, Aviano, Italy
| | - Roberta Maestro
- Experimental Oncology 1, Centro di Riferimento Oncologico, CRO Aviano National Cancer Institute, Aviano, Italy
| | - Nadia Zaffaroni
- Molecular Pharmacology Unit, Department of Experimental Oncology and Molecular Medicine, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Paolo Casali
- Adult Mesenchymal Tumor Medical Oncology Unit, Department of Cancer Medicine, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Rossella Bertulli
- Adult Mesenchymal Tumor Medical Oncology Unit, Department of Cancer Medicine, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Marcello Deraco
- Department of Surgery, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Silvana Pilotti
- Laboratory of Experimental Molecular Pathology, Department of Pathology and Laboratory Medicine, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
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17
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Let-7a regulates expression of β1-adrenoceptors and forms a negative feedback circuit with the β1-adrenoceptor signaling pathway in chronic ischemic heart failure. Oncotarget 2018; 8:8752-8764. [PMID: 28060734 PMCID: PMC5352438 DOI: 10.18632/oncotarget.14436] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2016] [Accepted: 12/01/2016] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND The aim of the present study was to investigate the role of microRNA (miRNA) let-7a in down-regulation of β1-adrenoceptors (β1-AR) and elucidate the underlying mechanism of chronic ischemia heart failure (CIHF) in rats. METHODS AND RESULTS CIHF model was established by occlusion of coronary artery for 4 weeks. β1-AR level was obviously down-regulated and let-7a up-regulated in the failing heart 4 weeks after myocardial infarction. Overexpression of let-7a inhibited β1-AR expression in neonatal rat ventricular cells (NRVCs), which was abolished by anti-let-7a antisense inhibitor. The lentivirus vector containing precursor let-7a (len-pre-let-7a) further down-regulated the reduced β1-AR level by CIHF and the effect was reversed by len-AMO-let-7a. Len-negative control did not produce any significant influence on β1-AR expression. Importantly, there exists a negative feedback loop associated with β1-AR regulation through β1-AR/cAMP/PKA/GATA4/let-7a/β1-AR signaling pathway in CIHF. As demonstrated, GATA4 was activated by β1-AR up-regulation through cAMP-PKA signaling pathway in early phase of ischemia, then GATA4 positively regulated let-7a expression which in turn suppressed β1-AR expression. CONCLUSIONS Let-7a regulates β1-AR expression and forms a negative feedback loop with β1-AR signaling pathway in ischemic heart failure. This study provides a new insight into the differential expression of β1-AR in early and later phase of myocardial ischemia.
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18
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Tu J, Cao D, Li L, Cheung HH, Chan WY. MicroRNA profiling during directed differentiation of cortical interneurons from human-induced pluripotent stem cells. FEBS Open Bio 2018; 8:502-512. [PMID: 29632804 PMCID: PMC5881541 DOI: 10.1002/2211-5463.12377] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2017] [Revised: 12/19/2017] [Accepted: 12/23/2017] [Indexed: 01/21/2023] Open
Abstract
Induced pluripotent stem cells (iPSCs) are useful for modeling neuron development and related diseases. Cortical interneurons are essential players in neuropsychiatric diseases such as autism. miRNAs are a class of pivotal regulators in neural differentiation. Using a previously established model of cortical interneuron differentiation from human embryonic stem cells, we profiled miRNAs involved in differentiation from human iPSCs. A number of miRNAs were modulated in the differentiation process. This study captured the temporal in vitro neurogenesis from iPSCs to mature cortical interneurons. The specific miRNAs identified at each stage of differentiation are of potential use for drug discovery and prospective clinical applications.
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Affiliation(s)
- Jiajie Tu
- Ministry of Education Key Laboratory for Regenerative Medicine (CUHK-Jinan University) School of Biomedical Sciences Faculty of Medicine The Chinese University of Hong Kong Hong Kong SAR China.,CUHK-CAS Guangzhou Institute of Biomedicine and Health Joint Laboratory on Stem Cell and Regenerative Medicine School of Biomedical Sciences Faculty of Medicine The Chinese University of Hong Kong Hong Kong SAR China
| | - Dandan Cao
- Ministry of Education Key Laboratory for Regenerative Medicine (CUHK-Jinan University) School of Biomedical Sciences Faculty of Medicine The Chinese University of Hong Kong Hong Kong SAR China
| | - Lu Li
- CUHK-CAS Guangzhou Institute of Biomedicine and Health Joint Laboratory on Stem Cell and Regenerative Medicine School of Biomedical Sciences Faculty of Medicine The Chinese University of Hong Kong Hong Kong SAR China
| | - Hoi-Hung Cheung
- Ministry of Education Key Laboratory for Regenerative Medicine (CUHK-Jinan University) School of Biomedical Sciences Faculty of Medicine The Chinese University of Hong Kong Hong Kong SAR China.,CUHK-CAS Guangzhou Institute of Biomedicine and Health Joint Laboratory on Stem Cell and Regenerative Medicine School of Biomedical Sciences Faculty of Medicine The Chinese University of Hong Kong Hong Kong SAR China
| | - Wai-Yee Chan
- Ministry of Education Key Laboratory for Regenerative Medicine (CUHK-Jinan University) School of Biomedical Sciences Faculty of Medicine The Chinese University of Hong Kong Hong Kong SAR China.,CUHK-CAS Guangzhou Institute of Biomedicine and Health Joint Laboratory on Stem Cell and Regenerative Medicine School of Biomedical Sciences Faculty of Medicine The Chinese University of Hong Kong Hong Kong SAR China
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19
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Yuan C, Xu M, Rong R, Mei Y, Cai W, Li L, Xue Y, Zhu B, Sun K, Han L. miR-200c regulates endothelin-1 induced PASMCs abnormal proliferation and apoptosis. IUBMB Life 2017; 69:877-886. [PMID: 29044995 DOI: 10.1002/iub.1686] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2017] [Accepted: 09/12/2017] [Indexed: 12/15/2022]
Affiliation(s)
- Chao Yuan
- Department of Emergency Medicine; The First Affiliated Hospital with Nanjing Medical University; Nanjing China
| | - Min Xu
- Department of General Medicine; Jiangsu Province Official Hospital; Nanjing China
| | - Rong Rong
- Department of Pathology; The First Affiliated Hospital with Nanjing Medical University; Nanjing China
| | - Yong Mei
- Department of Emergency Medicine; The First Affiliated Hospital with Nanjing Medical University; Nanjing China
| | - Wenyan Cai
- Department of Occupational Disease Prevention; Jiangsu Provincial Center for Disease Control and Prevention; Nanjing China
- School of Public health; Nanjing Medicinal University; Nanjing China
| | - Lin Li
- Department of Emergency Medicine; The First Affiliated Hospital with Nanjing Medical University; Nanjing China
| | - Yao Xue
- Department of Hematology and Oncology; Children's Hospital of Nanjing Medical University; Nanjing China
| | - Baoli Zhu
- Department of Occupational Disease Prevention; Jiangsu Provincial Center for Disease Control and Prevention; Nanjing China
| | - Kai Sun
- Department of Emergency Medicine; The First Affiliated Hospital with Nanjing Medical University; Nanjing China
| | - Lei Han
- Department of Occupational Disease Prevention; Jiangsu Provincial Center for Disease Control and Prevention; Nanjing China
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20
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Roscigno G, Puoti I, Giordano I, Donnarumma E, Russo V, Affinito A, Adamo A, Quintavalle C, Todaro M, Vivanco MDM, Condorelli G. MiR-24 induces chemotherapy resistance and hypoxic advantage in breast cancer. Oncotarget 2017; 8:19507-19521. [PMID: 28061479 PMCID: PMC5386701 DOI: 10.18632/oncotarget.14470] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2016] [Accepted: 11/30/2016] [Indexed: 12/18/2022] Open
Abstract
Breast cancer remains one of the leading causes of cancer mortality among women. It has been proved that the onset of cancer depends on a very small pool of tumor cells with a phenotype similar to that of normal adult stem cells. Cancer stem cells (CSC) possess self-renewal and multilineage differentiation potential as well as a robust ability to sustain tumorigenesis. Evidence suggests that CSCs contribute to chemotherapy resistance and to survival under hypoxic conditions. Interestingly, hypoxia in turn regulates self-renewal in CSCs and these effects may be primarily mediated by hypoxic inducible factors (HIFs). Recently, microRNAs (miRNAs) have emerged as critical players in the maintenance of pluripotency and self-renewal in normal and cancer stem cells. Here, we demonstrate that miR-24 is upregulated in breast CSCs and that its overexpression increases the number of mammospheres and the expression of stem cell markers. MiR-24 also induces apoptosis resistance through the regulation of BimL expression. Moreover, we identify a new miR-24 target, FIH1, which promotes HIFα degradation: miR-24 increases under hypoxic conditions, causing downregulation of FIH1 and upregulation of HIF1α. In conclusion, miR-24 hampers chemotherapy-induced apoptosis in breast CSCs and increases cell resistance to hypoxic conditions through an FIH1−HIFα pathway.
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Affiliation(s)
- Giuseppina Roscigno
- Department of Molecular Medicine and Medical Biotechnology, "Federico II" University of Naples, Naples, Italy.,IEOS, CNR, Naples, Italy
| | - Ilaria Puoti
- Department of Molecular Medicine and Medical Biotechnology, "Federico II" University of Naples, Naples, Italy.,IEOS, CNR, Naples, Italy
| | - Immacolata Giordano
- Department of Molecular Medicine and Medical Biotechnology, "Federico II" University of Naples, Naples, Italy
| | | | - Valentina Russo
- Department of Molecular Medicine and Medical Biotechnology, "Federico II" University of Naples, Naples, Italy
| | - Alessandra Affinito
- Department of Molecular Medicine and Medical Biotechnology, "Federico II" University of Naples, Naples, Italy
| | - Assunta Adamo
- Department of Molecular Medicine and Medical Biotechnology, "Federico II" University of Naples, Naples, Italy
| | - Cristina Quintavalle
- Department of Molecular Medicine and Medical Biotechnology, "Federico II" University of Naples, Naples, Italy.,IEOS, CNR, Naples, Italy
| | - Matilde Todaro
- Department of Pathobiology and Medical Biotechnology, University of Palermo, Palermo, Italy
| | - Maria dM Vivanco
- CIC bioGUNE, Centre for Cooperative Research in Biosciences, Derio, Spain
| | - Gerolama Condorelli
- Department of Molecular Medicine and Medical Biotechnology, "Federico II" University of Naples, Naples, Italy.,IEOS, CNR, Naples, Italy
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21
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MicroRNA-200, associated with metastatic breast cancer, promotes traits of mammary luminal progenitor cells. Oncotarget 2017; 8:83384-83406. [PMID: 29137351 PMCID: PMC5663523 DOI: 10.18632/oncotarget.20698] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2017] [Accepted: 07/25/2017] [Indexed: 12/16/2022] Open
Abstract
MicroRNAs are critical regulators of gene networks in normal and abnormal biological processes. Focusing on invasive ductal breast cancer (IDC), we have found dysregulated expression in tumor samples of several microRNAs, including the miR-200 family, along progression from primary tumors to distant metastases, further reflected in higher blood levels of miR-200b and miR-7 in IDC patients with regional or distant metastases relative to patients with primary node-negative tumors. Forced expression of miR-200s in MCF10CA1h mammary cells induced an enhanced epithelial program, aldehyde dehydrogenase (ALDH) activity, mammosphere growth and ability to form branched tubuloalveolar structures while promoting orthotopic tumor growth and lung colonization in vivo. MiR-200s also induced the constitutive activation of the PI3K-Akt signaling through downregulation of PTEN, and the enhanced mammosphere growth and ALDH activity induced in MCF10CA1h cells by miR-200s required the activation of this signaling pathway. Interestingly, the morphology of tumors formed in vivo by cells expressing miR-200s was reminiscent of metaplastic breast cancer (MBC). Indeed, the epithelial components of MBC samples expressed significantly higher levels of miR-200s than their mesenchymal components and displayed a marker profile compatible with luminal progenitor cells. We propose that microRNAs of the miR-200 family promote traits of highly proliferative breast luminal progenitor cells, thereby exacerbating the growth and metastatic properties of transformed mammary epithelial cells.
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22
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Kim Y, Kim N, Park SW, Kim H, Park HJ, Han YM. Lineage-specific Expression of miR-200 Family in Human Embryonic Stem Cells during In Vitro Differentiation. Int J Stem Cells 2017; 10:28-37. [PMID: 28531914 PMCID: PMC5488774 DOI: 10.15283/ijsc17013] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/26/2017] [Indexed: 01/05/2023] Open
Abstract
Although microRNAs have emerged as key regulators in diverse cellular processes, the roles of microRNAs are poorly understood in human embryonic stem cells (hESCs) during differentiation into specialized cell types. In this study, we used a microRNA array with 799 human microRNA probes to examine the expression profiles of microRNAs in hESCs during differentiation into endodermal and mesodermal lineages in vitro. Among the microRNAs analyzed, 7 and 20 microRNAs were enriched in the developmental process of hESCs into mesodermal and endodermal lineages, respectively. In particular, the expression levels of miR-200 family, which is known to regulate the epithelial to mesenchymal transition (EMT), gradually increased in hESCs during differentiation into hepatocytes while they gradually decreased during differentiation into vascular endothelial cells. Downregulation of ZEB1, a direct target of miR-200 family, and E-CADHERIN, a target protein of ZEB1, was observed in hESCs during differentiation into endodermal and mesodermal lineages, respectively. These results indicate that miR-200 family has an important role in determining the cell fate between endodermal and mesodermal lineages from the pluripotent state.
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Affiliation(s)
- Yeji Kim
- Department of Biological Sciences and Center for Stem Cell Differentiation, KAIST, Daejeon, Korea
| | - Nury Kim
- Department of Biological Sciences and Center for Stem Cell Differentiation, KAIST, Daejeon, Korea
| | - Sang-Wook Park
- Department of Biological Sciences and Center for Stem Cell Differentiation, KAIST, Daejeon, Korea
| | - Hyemin Kim
- Division of Research & Development, Korea Institute of Toxicology, Daejeon, Korea
| | - Han-Jin Park
- Division of Research & Development, Korea Institute of Toxicology, Daejeon, Korea
| | - Yong-Mahn Han
- Department of Biological Sciences and Center for Stem Cell Differentiation, KAIST, Daejeon, Korea
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23
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Chen Z, Zhang S, Guo C, Li J, Sang W. Downregulation of miR-200c protects cardiomyocytes from hypoxia-induced apoptosis by targeting GATA-4. Int J Mol Med 2017; 39:1589-1596. [PMID: 28440427 DOI: 10.3892/ijmm.2017.2959] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2016] [Accepted: 03/22/2017] [Indexed: 11/05/2022] Open
Abstract
Hypoxia-induced cardiomyocyte apoptosis plays an important role in the development of ischemic heart disease. MicroRNAs (miRNAs or miRs) are emerging as critical regulators of hypoxia-induced cardiomyocyte apoptosis. miR-200c is an miRNA that has been reported to be related to apoptosis in various pathological processes; however, its role in hypoxia‑induced cardiomyocyte apoptosis remains unclear. In the present study, we aimed to investigate the potential role and underlying mechanism of miR-200c in regulating hypoxia‑induced cardiomyocyte apoptosis. We found that miR-200c was significantly upregulated by hypoxia in cardiomyocytes, as detected by reverse transcription-quantitative polymerase chain reaction (RT-qPCR). The lactate dehydrogenase, MTT, Annexin V/propidium iodide apoptosis and caspase-3 activity assays showed that downregulation of miR-200c markedly improved cell survival and suppressed the apoptosis of cardiomyocytes in response to hypoxia. Bioinformatics analysis and the dual-luciferase reporter assay demonstrated that miR-200c directly targeted the 3'-untranslated region of GATA-4, an important transcription factor for cardiomyocyte survival. RT-qPCR and western blot analysis showed that suppression of miR-200c significantly increased GATA-4 expression. Furthermore, downregulation of miR-200c upregulated the expression of the anti-apoptotic gene Bcl-2. However, the protective effects against hypoxia induced by the downregulation of miR‑200c were significantly abolished by GATA-4 knockdown. Taken together, our results suggest that downregulation of miR-200c protects cardiomyocytes from hypoxia-induced apoptosis by targeting GATA-4, providing a potential therapeutic molecular target for the treatment of ischemic heart disease.
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Affiliation(s)
- Zhigang Chen
- Department of Cardiology, The First Affiliated Hospital of Xinxiang Medical University, Weihui, Henan 453100, P.R. China
| | - Shaoli Zhang
- Department of Cardiology, The First Affiliated Hospital of Xinxiang Medical University, Weihui, Henan 453100, P.R. China
| | - Changlei Guo
- Department of Cardiology, The First Affiliated Hospital of Xinxiang Medical University, Weihui, Henan 453100, P.R. China
| | - Jianhua Li
- Department of Cardiology, The First Affiliated Hospital of Xinxiang Medical University, Weihui, Henan 453100, P.R. China
| | - Wenfeng Sang
- Department of Internal Medicine Nursing, College of Nursing, Xinxiang Medical University, Xinxiang, Henan 453003, P.R. China
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24
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Cservenka A, Yardley MM, Ray LA. Review: Pharmacogenetics of alcoholism treatment: Implications of ethnic diversity. Am J Addict 2016; 26:516-525. [PMID: 28134463 DOI: 10.1111/ajad.12463] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2016] [Revised: 09/21/2016] [Accepted: 10/02/2016] [Indexed: 01/07/2023] Open
Abstract
BACKGROUND AND OBJECTIVES Pharmacogenetic studies of alcohol use disorder (AUD) have suggested that the efficacy of treatments for AUD is, in part, influenced by the genetic background of an individual. Since the frequency of alleles associated with pharmacotherapy for AUD varies by ancestral background, the effectiveness of medications used to treat AUD may vary among different populations. The purpose of this review is to summarize the existing pharmacogenetic studies of treatments for AUD in individuals of European, East Asian, African, and American Indian/Alaska Native ancestry. METHODS Electronic databases were searched for pharmacogenetic studies of AUD treatment that included individuals of diverse ancestral backgrounds. RESULTS Pharmacogenetic studies of AUD reviewed here have primarily investigated genetic variation thought to play a role in the response to naltrexone, ondansetron, and topiramate. There is support that the A118G polymorphism should be further investigated in individuals of East Asian ancestry. DISCUSSION AND CONCLUSIONS Given the lack of pharmacogenetic research on response to AUD medication in ethnic minority populations and the mixed results, there is a critical need for future studies among individuals of different ancestries. More efforts should be devoted to standardizing procedures such that results can be more readily integrated into a body of literature that can directly inform clinical practice. SCIENTIFIC SIGNIFICANCE This review highlights the importance for future research to aim for inclusiveness in pharmacogenetic studies of AUD and increase diversity of clinical trials in order to provide the best treatment outcomes for individuals across different racial and ethnic groups. (Am J Addict 2017;26:516-525).
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Affiliation(s)
- Anita Cservenka
- School of Psychological Science, Oregon State University, Corvallis, Oregon
| | - Megan M Yardley
- Department of Psychology, University of California, Los Angeles, California
| | - Lara A Ray
- Department of Psychology, University of California, Los Angeles, California.,Department of Psychiatry and Biobehavioral Sciences, University of California, Los Angeles, California.,Brain Research Institute, University of California, Los Angeles, California
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25
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Hong L, Sharp T, Khorsand B, Fischer C, Eliason S, Salem A, Akkouch A, Brogden K, Amendt BA. MicroRNA-200c Represses IL-6, IL-8, and CCL-5 Expression and Enhances Osteogenic Differentiation. PLoS One 2016; 11:e0160915. [PMID: 27529418 PMCID: PMC4987006 DOI: 10.1371/journal.pone.0160915] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2016] [Accepted: 07/27/2016] [Indexed: 12/19/2022] Open
Abstract
MicroRNAs (miRs) regulate inflammation and BMP antagonists, thus they have potential uses as therapeutic reagents. However, the molecular function of miR-200c in modulating proinflammatory and bone metabolic mediators and osteogenic differentiation is not known. After miR-200c was transduced into a human embryonic palatal mesenchyme (HEPM) (a cell line of preosteoblasts), using lentiviral vectors, the resulting miR-200c overexpression increased osteogenic differentiation biomarkers, including osteocalcin (OCN) transcripts and calcium content. miR-200c expression also down-regulated interleukin (IL)-6, IL-8, and chemokine (C-C motif) ligand (CCL)-5 under lipopolysaccharide (LPS) stimulation and increased osteoprotegerin (OPG) in these cells. miR-200c directly regulates the expression of IL-6, IL-8 and CCL-5 transcripts by binding to their 3’UTRs. A plasmid-based miR-200c inhibitor effectively reduces their binding activities. Additionally, miR-200c delivered using polyethylenimine (PEI) nanoparticles effectively inhibits IL-6, IL-8 and CCL-5 in primary human periodontal ligament fibroblasts and increases the biomarkers of osteogenic differentiation in human bone marrow mesenchymal stem cells (MSCs), including calcium content, ALP, and Runx2. These data demonstrate that miR-200c represses IL-6, IL-8 and CCL-5 and improves osteogenic differentiation. miR-200c may potentially be used as an effective means to prevent periodontitis-associated bone loss by arresting inflammation and osteoclastogenesis and enhancing bone regeneration.
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Affiliation(s)
- Liu Hong
- Dows Institute for Dental Research, College of Dentistry, the University of Iowa, Iowa City, IA, United States of America
- Center for Craniofacial Anomalies Research, Carver College of Medicine, the University of Iowa, Iowa City, IA, United States of America
- * E-mail: (LH); (BAA)
| | - Thad Sharp
- Department of Anatomy and Cell Biology, Carver College of Medicine, the University of Iowa, Iowa City, IA, United States of America
| | - Behnoush Khorsand
- Department of Pharmaceutical Sciences and Experimental Therapeutics, College of Pharmacy, the University of Iowa, Iowa City, IA, United States of America
| | - Carol Fischer
- Dows Institute for Dental Research, College of Dentistry, the University of Iowa, Iowa City, IA, United States of America
| | - Steven Eliason
- Center for Craniofacial Anomalies Research, Carver College of Medicine, the University of Iowa, Iowa City, IA, United States of America
- Department of Anatomy and Cell Biology, Carver College of Medicine, the University of Iowa, Iowa City, IA, United States of America
| | - Ali Salem
- Department of Pharmaceutical Sciences and Experimental Therapeutics, College of Pharmacy, the University of Iowa, Iowa City, IA, United States of America
| | - Adil Akkouch
- Dows Institute for Dental Research, College of Dentistry, the University of Iowa, Iowa City, IA, United States of America
| | - Kim Brogden
- Dows Institute for Dental Research, College of Dentistry, the University of Iowa, Iowa City, IA, United States of America
| | - Brad A. Amendt
- Dows Institute for Dental Research, College of Dentistry, the University of Iowa, Iowa City, IA, United States of America
- Center for Craniofacial Anomalies Research, Carver College of Medicine, the University of Iowa, Iowa City, IA, United States of America
- Department of Anatomy and Cell Biology, Carver College of Medicine, the University of Iowa, Iowa City, IA, United States of America
- * E-mail: (LH); (BAA)
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26
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Mansouri S, Nejad R, Karabork M, Ekinci C, Solaroglu I, Aldape KD, Zadeh G. Sox2: regulation of expression and contribution to brain tumors. CNS Oncol 2016; 5:159-73. [PMID: 27230973 DOI: 10.2217/cns-2016-0001] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Tumors of the CNS are composed of a complex mixture of neoplastic cells, in addition to vascular, inflammatory and stromal components. Similar to most other tumors, brain tumors contain a heterogeneous population of cells that are found at different stages of differentiation. The cancer stem cell hypothesis suggests that all tumors are composed of subpopulation of cells with stem-like properties, which are capable of self-renewal, display resistance to therapy and lead to tumor recurrence. One of the most important transcription factors that regulate cancer stem cell properties is SOX2. In this review, we focus on SOX2 and the complex network of signaling molecules and transcription factors that regulate its expression and function in brain tumor initiating cells. We also highlight important findings in the literature about the role of SOX2 in glioblastoma and medulloblastoma, where it has been more extensively studied.
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Affiliation(s)
- Sheila Mansouri
- McFeeters-Hamilton Center for Neuro-Oncology Research, 101 College St., Toronto, ON, M5G 1L7, Canada
| | - Romina Nejad
- McFeeters-Hamilton Center for Neuro-Oncology Research, 101 College St., Toronto, ON, M5G 1L7, Canada
| | - Merve Karabork
- School of Medicine, Koç University, Rumelifeneri Yolu, 34450, Sariyer, Istanbul, Turkey
| | - Can Ekinci
- School of Medicine, Koç University, Rumelifeneri Yolu, 34450, Sariyer, Istanbul, Turkey
| | - Ihsan Solaroglu
- School of Medicine, Koç University, Rumelifeneri Yolu, 34450, Sariyer, Istanbul, Turkey.,School of Medicine, Loma Linda University, Loma Linda, CA 92354, USA
| | - Kenneth D Aldape
- McFeeters-Hamilton Center for Neuro-Oncology Research, 101 College St., Toronto, ON, M5G 1L7, Canada
| | - Gelareh Zadeh
- McFeeters-Hamilton Center for Neuro-Oncology Research, 101 College St., Toronto, ON, M5G 1L7, Canada.,Division of Neurosurgery, Toronto Western Hospital, Toronto, M5T 2S8, Canada
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27
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Hawa Z, Haque I, Ghosh A, Banerjee S, Harris L, Banerjee SK. The miRacle in Pancreatic Cancer by miRNAs: Tiny Angels or Devils in Disease Progression. Int J Mol Sci 2016; 17:E809. [PMID: 27240340 PMCID: PMC4926343 DOI: 10.3390/ijms17060809] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2016] [Revised: 05/04/2016] [Accepted: 05/19/2016] [Indexed: 02/07/2023] Open
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is an aggressive malignancy with increasing incidence and high mortality. Surgical resection is the only potentially curative treatment of patients with PDAC. Because of the late presentation of the disease, about 20 percent of patients are candidates for this treatment. The average survival of resected patients is between 12 and 20 months, with a high probability of relapse. Standard chemo and radiation therapies do not offer significant improvement of the survival of these patients. Furthermore, novel treatment options aimed at targeting oncogenes or growth factors in pancreatic cancer have proved unsuccessful. Thereby, identifying new biomarkers that can detect early stages of this disease is of critical importance. Among these biomarkers, microRNAs (miRNAs) have supplied a profitable recourse and become an attractive focus of research in PDAC. MiRNAs regulate many genes involved in the development of PDAC through mRNA degradation or translation inhibition. The possibility of intervention in the molecular mechanisms of miRNAs regulation could begin a new generation of PDAC therapies. This review summarizes the reports describing miRNAs involvement in cellular processes involving pancreatic carcinogenesis and their utility in diagnosis, survival and therapeutic potential in pancreatic cancer.
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Affiliation(s)
- Zuhair Hawa
- Cancer Research Unit, VA Medical Center, Kansas City, MO 64128, USA.
| | - Inamul Haque
- Cancer Research Unit, VA Medical Center, Kansas City, MO 64128, USA.
- Division of Oncology, Department of Internal Medicine, University of Kansas Medical Center, Kansas City, KS 66205, USA.
| | - Arnab Ghosh
- Cancer Research Unit, VA Medical Center, Kansas City, MO 64128, USA.
- Division of Oncology, Department of Internal Medicine, University of Kansas Medical Center, Kansas City, KS 66205, USA.
| | - Snigdha Banerjee
- Cancer Research Unit, VA Medical Center, Kansas City, MO 64128, USA.
- Division of Oncology, Department of Internal Medicine, University of Kansas Medical Center, Kansas City, KS 66205, USA.
| | - LaCoiya Harris
- Cancer Research Unit, VA Medical Center, Kansas City, MO 64128, USA.
| | - Sushanta K Banerjee
- Cancer Research Unit, VA Medical Center, Kansas City, MO 64128, USA.
- Division of Oncology, Department of Internal Medicine, University of Kansas Medical Center, Kansas City, KS 66205, USA.
- Department of Anatomy and Cell Biology, University of Kansas Medical Center, Kansas City, KS 66205, USA.
- Department of Pathology, University of Kansas Medical Center, Kansas City, KS 66205, USA.
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28
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miR-200c: a versatile watchdog in cancer progression, EMT, and drug resistance. J Mol Med (Berl) 2016; 94:629-44. [PMID: 27094812 DOI: 10.1007/s00109-016-1420-5] [Citation(s) in RCA: 84] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2016] [Revised: 04/05/2016] [Accepted: 04/11/2016] [Indexed: 12/17/2022]
Abstract
MicroRNAs (miRNAs) are 20-22-nucleotide small endogenous non-coding RNAs which regulate gene expression at post-transcriptional level. In the last two decades, identification of almost 2600 miRNAs in human and their potential to be modulated opened a new avenue to target almost all hallmarks of cancer. miRNAs have been classified as tumor suppressors or oncogenes depending on the phenotype they induce, the targets they modulate, and the tissue where they function. miR-200c, an illustrious tumor suppressor, is one of the highly studied miRNAs in terms of development, stemness, proliferation, epithelial-mesenchymal transition (EMT), therapy resistance, and metastasis. In this review, we first focus on the regulation of miR-200c expression and its role in regulating EMT in a ZEB1/E-cadherin axis-dependent and ZEB1/E-cadherin axis-independent manner. We then describe the role of miR-200c in therapy resistance in terms of multidrug resistance, chemoresistance, targeted therapy resistance, and radiotherapy resistance in various cancer types. We highlight the importance of miR-200c at the intersection of EMT and chemoresistance. Furthermore, we show how miR-200c coordinates several important signaling cascades such as TGF-β signaling, PI3K/Akt signaling, Notch signaling, VEGF signaling, and NF-κB signaling. Finally, we discuss miR-200c as a potential prognostic/diagnostic biomarker in several diseases, but mainly focusing on cancer and its potential application in future therapeutics.
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29
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The microRNA-200 family: small molecules with novel roles in cancer development, progression and therapy. Oncotarget 2016; 6:6472-98. [PMID: 25762624 PMCID: PMC4466628 DOI: 10.18632/oncotarget.3052] [Citation(s) in RCA: 265] [Impact Index Per Article: 33.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2014] [Accepted: 01/06/2015] [Indexed: 12/11/2022] Open
Abstract
MicroRNAs (miRNAs) are a large family of small non-coding RNAs that negatively regulate protein-coding gene expression post-transcriptionally via base pairing between the 5′ seed region of a miRNA and the 3′ untranslated region (3′UTR) of a messenger RNA (mRNA). Recent evidence has supported the critical role that miRNAs play in many diseases including cancer. The miR-200 family consisting of 5 members (miR-200a, -200b, -200c, -141, -429) is an emerging miRNA family that has been shown to play crucial roles in cancer initiation and metastasis, and potentially be important for the diagnosis and treatment of cancer. While miR-200s were found to be critically involved in the metastatic colonization to the lungs in mouse mammary xenograft tumor models, a large number of studies demonstrated their strong suppressive effects on cell transformation, cancer cell proliferation, migration, invasion, tumor growth and metastasis. This review aims to discuss research findings about the role of the miR-200 family in cancer initiation, each step of cancer metastatic cascade, cancer diagnosis and treatment. A comprehensive summary of currently validated miR-200 targets is also presented. It is concluded that miR-200 family may serve as novel targets for the therapy of multiple types of cancer.
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30
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Quintela T, Marcelino H, Deery MJ, Feret R, Howard J, Lilley KS, Albuquerque T, Gonçalves I, Duarte AC, Santos CRA. Sex-Related Differences in Rat Choroid Plexus and Cerebrospinal Fluid: A cDNA Microarray and Proteomic Analysis. J Neuroendocrinol 2016; 28. [PMID: 26606900 DOI: 10.1111/jne.12340] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/25/2015] [Revised: 11/13/2015] [Accepted: 11/19/2015] [Indexed: 01/09/2023]
Abstract
The choroid plexus (CP) epithelium is a unique structure in the brain that forms an interface between the peripheral blood and the cerebrospinal fluid (CSF), which is mostly produced by the CP itself. Because the CP transcriptome is regulated by the sex hormone background, the present study compared gene/protein expression profiles in the CP and CSF from male and female rats aiming to better understand sex-related differences in CP functions and brain physiology. We used data previously obtained by cDNA microarrays to compare the CP transcriptome between male and female rats, and complemented these data with the proteomic analysis of the CSF of castrated and sham-operated males and females. Microarray analysis showed that 17 128 and 17 002 genes are expressed in the male and female CP, which allowed the functional annotation of 141 and 134 pathways, respectively. Among the most expressed genes, canonical pathways associated with mitochondrial dysfunctions and oxidative phosphorylation were the most prominent, whereas the most relevant molecular and cellular functions annotated were protein synthesis, cellular growth and proliferation, cell death and survival, molecular transport, and protein trafficking. No significant differences were found between males and females regarding these pathways. Seminal functions of the CP differentially regulated between sexes were circadian rhythm signalling, as well as several canonical pathways related to stem cell differentiation, metabolism and the barrier function of the CP. The proteomic analysis identified five down-regulated proteins in the CSF samples from male rats compared to females and seven proteins exhibiting marked variation in the CSF of gonadectomised males compared to sham animals, whereas no differences were found between sham and ovariectomised females. These data clearly show sex-related differences in CP gene expression and CSF protein composition that may impact upon neurological diseases.
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Affiliation(s)
- T Quintela
- CICS-UBI - Health Sciences Research Centre, University of Beira Interior, Covilhã, Portugal
| | - H Marcelino
- CICS-UBI - Health Sciences Research Centre, University of Beira Interior, Covilhã, Portugal
| | - M J Deery
- Cambridge Centre for Proteomics, Cambridge Systems Biology Centre, Department of Biochemistry, University of Cambridge, Cambridge, UK
| | - R Feret
- Cambridge Centre for Proteomics, Cambridge Systems Biology Centre, Department of Biochemistry, University of Cambridge, Cambridge, UK
| | - J Howard
- Cambridge Centre for Proteomics, Cambridge Systems Biology Centre, Department of Biochemistry, University of Cambridge, Cambridge, UK
| | - K S Lilley
- Cambridge Centre for Proteomics, Cambridge Systems Biology Centre, Department of Biochemistry, University of Cambridge, Cambridge, UK
| | - T Albuquerque
- CICS-UBI - Health Sciences Research Centre, University of Beira Interior, Covilhã, Portugal
| | - I Gonçalves
- CICS-UBI - Health Sciences Research Centre, University of Beira Interior, Covilhã, Portugal
| | - A C Duarte
- CICS-UBI - Health Sciences Research Centre, University of Beira Interior, Covilhã, Portugal
| | - C R A Santos
- CICS-UBI - Health Sciences Research Centre, University of Beira Interior, Covilhã, Portugal
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31
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MicroRNAs: From Female Fertility, Germ Cells, and Stem Cells to Cancer in Humans. Stem Cells Int 2015; 2016:3984937. [PMID: 26664407 PMCID: PMC4655303 DOI: 10.1155/2016/3984937] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2015] [Accepted: 08/19/2015] [Indexed: 12/14/2022] Open
Abstract
MicroRNAs are a family of naturally occurring small noncoding RNA molecules that play an important regulatory role in gene expression. They are suggested to regulate a large proportion of protein encoding genes by mediating the translational suppression and posttranscriptional control of gene expression. Recent findings show that microRNAs are emerging as important regulators of cellular differentiation and dedifferentiation, and are deeply involved in developmental processes including human preimplantation development. They keep a balance between pluripotency and differentiation in the embryo and embryonic stem cells. Moreover, it became evident that dysregulation of microRNA expression may play a fundamental role in progression and dissemination of different cancers including ovarian cancer. The interest is still increased by the discovery of exosomes, that is, cell-derived vesicles, which can carry different proteins but also microRNAs between different cells and are involved in cell-to-cell communication. MicroRNAs, together with exosomes, have a great potential to be used for prognosis, therapy, and biomarkers of different diseases including infertility. The aim of this review paper is to summarize the existent knowledge on microRNAs related to female fertility and cancer: from primordial germ cells and ovarian function, germinal stem cells, oocytes, and embryos to embryonic stem cells.
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32
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Retinoic Acid Induces Embryonic Stem Cell Differentiation by Altering Both Encoding RNA and microRNA Expression. PLoS One 2015; 10:e0132566. [PMID: 26162091 PMCID: PMC4498831 DOI: 10.1371/journal.pone.0132566] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2014] [Accepted: 06/16/2015] [Indexed: 01/09/2023] Open
Abstract
Retinoic acid (RA) is a vitamin A metabolite that is essential for early embryonic development and promotes stem cell neural lineage specification; however, little is known regarding the impact of RA on mRNA transcription and microRNA levels on embryonic stem cell differentiation. Here, we present mRNA microarray and microRNA high-output sequencing to clarify how RA regulates gene expression. Using mRNA microarray analysis, we showed that RA repressed pluripotency-associated genes while activating ectoderm markers in mouse embryonic stem cells (mESCs). Moreover, RA modulated the DNA methylation of mESCs by altering the expression of epigenetic-associated genes such as Dnmt3b and Dnmt3l. Furthermore, H3K4me2, a pluripotent histone modification, was repressed by RA stimulation. From microRNA sequence data, we identified two downregulated microRNAs, namely, miR-200b and miR-200c, which regulated the pluripotency of stem cells. We found that miR-200b or miR-200c deficiency suppressed the expression of pluripotent genes, including Oct4 and Nanog, and activated the expression of the ectodermal marker gene Nestin. These results demonstrate that retinoid induces mESCs to differentiate by regulating miR-200b/200c. Our findings provide the landscapes of mRNA and microRNA gene networks and indicate the crucial role of miR-200b/200c in the RA-induced differentiation of mESCs.
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Tabata T, Petitt M, Zydek M, Fang-Hoover J, Larocque N, Tsuge M, Gormley M, Kauvar LM, Pereira L. Human cytomegalovirus infection interferes with the maintenance and differentiation of trophoblast progenitor cells of the human placenta. J Virol 2015; 89:5134-47. [PMID: 25741001 PMCID: PMC4403461 DOI: 10.1128/jvi.03674-14] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2014] [Accepted: 01/19/2015] [Indexed: 12/12/2022] Open
Abstract
UNLABELLED Human cytomegalovirus (HCMV) is a major cause of birth defects that include severe neurological deficits, hearing and vision loss, and intrauterine growth restriction. Viral infection of the placenta leads to development of avascular villi, edema, and hypoxia associated with symptomatic congenital infection. Studies of primary cytotrophoblasts (CTBs) revealed that HCMV infection impedes terminal stages of differentiation and invasion by various molecular mechanisms. We recently discovered that HCMV arrests earlier stages involving development of human trophoblast progenitor cells (TBPCs), which give rise to the mature cell types of chorionic villi-syncytiotrophoblasts on the surfaces of floating villi and invasive CTBs that remodel the uterine vasculature. Here, we show that viral proteins are present in TBPCs of the chorion in cases of symptomatic congenital infection. In vitro studies revealed that HCMV replicates in continuously self-renewing TBPC lines derived from the chorion and alters expression and subcellular localization of proteins required for cell cycle progression, pluripotency, and early differentiation. In addition, treatment with a human monoclonal antibody to HCMV glycoprotein B rescues differentiation capacity, and thus, TBPCs have potential utility for evaluation of the efficacies of novel antiviral antibodies in protecting and restoring placental development. Our results suggest that HCMV replicates in TBPCs in the chorion in vivo, interfering with the earliest steps in the growth of new villi, contributing to virus transmission and impairing compensatory development. In cases of congenital infection, reduced responsiveness of the placenta to hypoxia limits the transport of substances from maternal blood and contributes to fetal growth restriction. IMPORTANCE Human cytomegalovirus (HCMV) is a leading cause of birth defects in the United States. Congenital infection can result in permanent neurological defects, mental retardation, hearing loss, visual impairment, and pregnancy complications, including intrauterine growth restriction, preterm delivery, and stillbirth. Currently, there is neither a vaccine nor any approved treatment for congenital HCMV infection during gestation. The molecular mechanisms underlying structural deficiencies in the placenta that undermine fetal development are poorly understood. Here we report that HCMV replicates in trophoblast progenitor cells (TBPCs)-precursors of the mature placental cells, syncytiotrophoblasts and cytotrophoblasts, in chorionic villi-in clinical cases of congenital infection. Virus replication in TBPCs in vitro dysregulates key proteins required for self-renewal and differentiation and inhibits normal division and development into mature placental cells. Our findings provide insights into the underlying molecular mechanisms by which HCMV replication interferes with placental maturation and transport functions.
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Affiliation(s)
- Takako Tabata
- Department of Cell and Tissue Biology, School of Dentistry, University of California, San Francisco, San Francisco, California, USA
| | - Matthew Petitt
- Department of Cell and Tissue Biology, School of Dentistry, University of California, San Francisco, San Francisco, California, USA
| | - Martin Zydek
- Department of Cell and Tissue Biology, School of Dentistry, University of California, San Francisco, San Francisco, California, USA
| | - June Fang-Hoover
- Department of Cell and Tissue Biology, School of Dentistry, University of California, San Francisco, San Francisco, California, USA
| | - Nicholas Larocque
- Center for Reproductive Sciences, University of California, San Francisco, San Francisco, California, USA Department of Obstetrics, Gynecology and Reproductive Sciences, University of California, San Francisco, San Francisco, California, USA The Eli & Edythe Broad Center for Regeneration Medicine and Stem Cell Research, University of California, San Francisco, San Francisco, California, USA
| | - Mitsuru Tsuge
- Department of Cell and Tissue Biology, School of Dentistry, University of California, San Francisco, San Francisco, California, USA
| | - Matthew Gormley
- Center for Reproductive Sciences, University of California, San Francisco, San Francisco, California, USA Department of Obstetrics, Gynecology and Reproductive Sciences, University of California, San Francisco, San Francisco, California, USA The Eli & Edythe Broad Center for Regeneration Medicine and Stem Cell Research, University of California, San Francisco, San Francisco, California, USA
| | | | - Lenore Pereira
- Department of Cell and Tissue Biology, School of Dentistry, University of California, San Francisco, San Francisco, California, USA
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Asakura T, Yamaguchi N, Ohkawa K, Yoshida K. Proteasome inhibitor-resistant cells cause EMT-induction via suppression of E-cadherin by miR-200 and ZEB1. Int J Oncol 2015; 46:2251-60. [PMID: 25738863 DOI: 10.3892/ijo.2015.2916] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2014] [Accepted: 01/19/2015] [Indexed: 11/06/2022] Open
Abstract
Downregulation of E-cadherin (gene: CDH1) plays an important role in epithelial-mesenchymal transition (EMT), which is critical for normal development and disease states. As a result of long-term treatment of endometrial carcinoma Ishikawa cells with epoxomicin (EXM), the cells exhibited the phenotype for EXM-resistance (Ish/EXM cells). Moreover, CDH1 mRNA and its protein were suppressed and EMT was induced in Ish/EXM cells. Ish/EXM cells exhibited drug-resistance to other proteasome inhibitors, MG-132, PSI and PS-341 (Bortezomib). The proteasome inhibitor-resistant cells acquired invasiveness as a result of the chemotherapy. In Ish/EXM cells, E-cadherin was suppressed by upregulation of its transcriptional repressor ZEB1. Furthermore, expression of the miR-200 family (miR-200a, miR-200b, miR-200c and miR-141) found in Ishikawa cells was suppressed in Ish/EXM cells. Overexpression of the miR-200 family in Ish/EXM cells caused by transfection with the pre-miR-200 family induced downregulation of ZEB1 and enhanced expression of E-cadherin. Conversely, suppression of miR-200 expression in the Ishikawa cells by transfection with anti-miR-200 elevated the expression of ZEB1 and suppressed the expression of E-cadherin. These results suggest that acquirement of EXM-resistance in Ish/EXM cells induces up regulation of ZEB1 via suppression of the miR-200 family following suppression of E-cadherin. Since suppression of ZEB1 in Ish/EXM cells by treatment with its siRNA did not restore the miR-200 family expression, miR-200 family was placed upstream of ZEB1 to regulate the expression.
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Affiliation(s)
- Tadashi Asakura
- Department of Biochemistry, Jikei University School of Medicine, Tokyo 105-8461, Japan
| | - Noriko Yamaguchi
- Department of Biochemistry, Jikei University School of Medicine, Tokyo 105-8461, Japan
| | - Kiyoshi Ohkawa
- Department of Biochemistry, Jikei University School of Medicine, Tokyo 105-8461, Japan
| | - Kiyotsugu Yoshida
- Department of Biochemistry, Jikei University School of Medicine, Tokyo 105-8461, Japan
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Ruvolo PP. The Interplay between PP2A and microRNAs in Leukemia. Front Oncol 2015; 5:43. [PMID: 25750899 PMCID: PMC4335100 DOI: 10.3389/fonc.2015.00043] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2014] [Accepted: 02/05/2015] [Indexed: 12/19/2022] Open
Abstract
Protein phosphatase 2A (PP2A) is a serine/threonine phosphatase family whose members have been implicated in tumor suppression in many cancer models. In many cancers, loss of PP2A activity has been associated with tumorigenesis and drug resistance. Loss of PP2A results in failure to turn off survival signaling cascades that drive drug resistance such as those regulated by protein kinase B. PP2A is responsible for modulating function and controlling expression of tumor suppressors such as p53 and oncogenes such as BCL2 and MYC. Thus, PP2A has diverse functions regulating cell survival. The importance of microRNAs (miRs) is emerging in cancer biology. A role for miR regulation of PP2A is not well understood; however, recent studies suggest a number of clinically significant miRs such as miR-155 and miR-19 may include PP2A targets. We have recently found that a PP2A B subunit (B55α) can regulate a number of miRs in acute myeloid leukemia cells. The identification of a miR/PP2A axis represents a novel regulatory pathway in cellular homeostasis. The ability of miRs to suppress specific PP2A targets and for PP2A to control such miRs can add an extra level of control in signaling that could be used as a rheostat for many signaling cascades that maintain cellular homeostasis. As such, loss of PP2A or expression of miRs relevant for PP2A function could promote tumorigenesis or at least result in drug resistance. In this review, we will cover the current state of miR regulation of PP2A with a focus on leukemia. We will also briefly discuss what is known of PP2A regulation of miR expression.
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Affiliation(s)
- Peter P Ruvolo
- Department of Leukemia, University of Texas MD Anderson Cancer Center , Houston, TX , USA
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Tagne JB, Mohtar OR, Campbell JD, Lakshminarayanan M, Huang J, Hinds AC, Lu J, Ramirez MI. Transcription factor and microRNA interactions in lung cells: an inhibitory link between NK2 homeobox 1, miR-200c and the developmental and oncogenic factors Nfib and Myb. Respir Res 2015; 16:22. [PMID: 25763778 PMCID: PMC4335692 DOI: 10.1186/s12931-015-0186-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2014] [Accepted: 01/30/2015] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND The transcription factor NK2 homeobox 1 (Nkx2-1) plays essential roles in epithelial cell proliferation and differentiation in mouse and human lung development and tumorigenesis. A better understanding of genes and pathways downstream of Nkx2-1 will clarify the multiple roles of this critical lung factor. Nkx2-1 regulates directly or indirectly numerous protein-coding genes; however, there is a paucity of information about Nkx2-1-regulated microRNAs (miRNAs). METHODS AND RESULTS By miRNA array analyses of mouse epithelial cell lines in which endogenous Nkx2-1 was knocked-down, we revealed that 29 miRNAs were negatively regulated including miR-200c, and 39 miRNAs were positively regulated by Nkx2-1 including miR-1195. Mouse lungs lacking functional phosphorylated Nkx2-1 showed increased expression of miR-200c and alterations in the expression of other top regulated miRNAs. Moreover, chromatin immunoprecipitation assays showed binding of NKX2-1 protein to regulatory regions of these miRNAs. Promoter reporter assays indicated that 1kb of the miR-200c 5' flanking region was transcriptionally active but did not mediate Nkx2-1- repression of miR-200c expression. 3'UTR reporter assays support a direct regulation of the predicted targets Nfib and Myb by miR-200c. CONCLUSIONS These studies suggest that Nkx2-1 controls the expression of specific miRNAs in lung epithelial cells. In particular, we identified a regulatory link between Nkx2-1, the known tumor suppressor miR-200c, and the developmental and oncogenic transcription factors Nfib and Myb, adding new players to the regulatory mechanisms driven by Nkx2-1 in lung epithelial cells that may have implications in lung development and tumorigenesis.
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Affiliation(s)
- Jean-Bosco Tagne
- The Pulmonary Center, Boston University School of Medicine, Boston, USA.
| | - Omar R Mohtar
- The Pulmonary Center, Boston University School of Medicine, Boston, USA.
| | - Joshua D Campbell
- Section of Computational Biomedicine, Department of Medicine, Boston University School of Medicine, Boston, USA.
| | | | - Jingshu Huang
- The Pulmonary Center, Boston University School of Medicine, Boston, USA.
| | - Anne C Hinds
- The Pulmonary Center, Boston University School of Medicine, Boston, USA.
| | - Jining Lu
- The Pulmonary Center, Boston University School of Medicine, Boston, USA.
| | - Maria I Ramirez
- The Pulmonary Center, Boston University School of Medicine, Boston, USA.
- Department of Pathology and Laboratory Medicine, Boston University School of Medicine, 72 E. Concord St, Boston, MA, 02118, USA.
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Erturk E, Cecener G, Tezcan G, Egeli U, Tunca B, Gokgoz S, Tolunay S, Tasdelen I. BRCA mutations cause reduction in miR-200c expression in triple negative breast cancer. Gene 2014; 556:163-9. [PMID: 25445393 DOI: 10.1016/j.gene.2014.11.047] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2014] [Revised: 11/03/2014] [Accepted: 11/21/2014] [Indexed: 01/09/2023]
Abstract
Triple negative breast cancer (TNBC) is the most aggressive and poorly understood subclass of breast cancer (BC). Over the recent years, miRNA expression studies have been providing certain detailed overview that aberrant expression of miRNAs is associated with TNBC. Although TNBC tumors are strongly connected with loss of function of BRCA genes, there is no knowledge about the effect of BRCA mutation status on miRNA expressions in TNBC cases. The aims of this study were to evaluate the expression profile of miRNAs that plays role in TNBC progression and the role of BRCA mutations in their regulation. The expression level of BC associated 13 miRNAs was analyzed in 7 BRCA mutations positive, 6 BRCA mutations negative TNBC cases and 20 non-tumoral tissues using RT-PCR. According to RT2 Profiler PCR Array Data Analysis, let-7a expression was 4.67 fold reduced in TNBCs as compared to normal tissues (P=0.031). In addition, miR-200c expression was 5.75 fold reduced in BRCA mutation positive TNBC tumors (P=0.005). Analysis revealed a negative correlation between miR-200c and VEGFA expressions (r=-468). Thus, miR-200c may be involved in invasion and metastasis in TNBC cases with BRCA mutation. In this study we provide the knowledge on the first report of association between microRNA-200c and BRCA mutations in TNBC. Further studies and evaluations are required, but this miRNA may provide novel therapeutic molecular targets for TNBC treatment and new directions for the development of anticancer drugs.
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Affiliation(s)
- Elif Erturk
- Vocational School of Health Services, Uludag University, Bursa, Turkey
| | - Gulsah Cecener
- Department of Medical Biology, Faculty of Medicine, Uludag University, Bursa, Turkey.
| | - Gulcin Tezcan
- Department of Medical Biology, Faculty of Medicine, Uludag University, Bursa, Turkey; Department of Medical Biology, Institute of Health Sciences, Uludag University, Bursa, Turkey
| | - Unal Egeli
- Department of Medical Biology, Faculty of Medicine, Uludag University, Bursa, Turkey
| | - Berrin Tunca
- Department of Medical Biology, Faculty of Medicine, Uludag University, Bursa, Turkey
| | - Sehsuvar Gokgoz
- Department of General Surgery, Faculty of Medicine, Uludag University, Bursa, Turkey
| | - Sahsine Tolunay
- Department of Pathology, Faculty of Medicine, Uludag University, Bursa, Turkey
| | - Ismet Tasdelen
- Department of General Surgery, Faculty of Medicine, Uludag University, Bursa, Turkey
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Abdelalim EM, Emara MM, Kolatkar PR. The SOX Transcription Factors as Key Players in Pluripotent Stem Cells. Stem Cells Dev 2014; 23:2687-99. [DOI: 10.1089/scd.2014.0297] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Affiliation(s)
- Essam M. Abdelalim
- Qatar Biomedical Research Institute, Qatar Foundation, Education City, Doha, Qatar
| | - Mohamed M. Emara
- Qatar Biomedical Research Institute, Qatar Foundation, Education City, Doha, Qatar
| | - Prasanna R. Kolatkar
- Qatar Biomedical Research Institute, Qatar Foundation, Education City, Doha, Qatar
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Wu J, Lv Q, He J, Zhang H, Mei X, Cui K, Huang N, Xie W, Xu N, Zhang Y. MicroRNA-188 suppresses G1/S transition by targeting multiple cyclin/CDK complexes. Cell Commun Signal 2014; 12:66. [PMID: 25304455 PMCID: PMC4200121 DOI: 10.1186/s12964-014-0066-6] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2014] [Accepted: 09/30/2014] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Accelerated cell cycle progression is the common feature of most cancers. MiRNAs can act as oncogenes or tumor suppressors by directly modulating cell cycle machinery. It has been shown that miR-188 is upregulated in UVB-irradiated mouse skin and human nasopharyngeal carcinoma CNE cells under hypoxic stress. However, little is known about the function of miR-188 in cell proliferation and growth control. RESULTS Overexpression of miR-188 inhibits cell proliferation, tumor colony formation and G1/S cell cycle transition in human nasopharyngeal carcinoma CNE cells. Using bioinformatics approach, we identify a series of genes regulating G1/S transition as putative miR-188 targets. MiR-188 inhibits both mRNA and protein expression of CCND1, CCND3, CCNE1, CCNA2, CDK4 and CDK2, suppresses Rb phosphorylation and downregulates E2F transcriptional activity. The expression level of miR-188 also inversely correlates with the expression of miR-188 targets in human nasopharyngeal carcinoma (NPC) tissues. Moreover, studies in xenograft mouse model reveal that miR-188 is capable of inhibiting tumor initiation and progression by suppressing target genes expression and Rb phosphorylation. CONCLUSIONS This study demonstrates that miR-188 exerts anticancer effects, via downregulation of multiple G1/S related cyclin/CDKs and Rb/E2F signaling pathway.
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Affiliation(s)
- Jiangbin Wu
- School of Life Sciences, Tsinghua University, Beijing, 100084, PR China. .,Division of Life Science, Key Lab in Healthy Science and Technology, Graduate School at Shenzhen, Tsinghua University, Shenzhen, 518055, PR China.
| | - Qing Lv
- School of Life Sciences, Tsinghua University, Beijing, 100084, PR China. .,Division of Life Science, Key Lab in Healthy Science and Technology, Graduate School at Shenzhen, Tsinghua University, Shenzhen, 518055, PR China.
| | - Jie He
- Division of Life Science, Key Lab in Healthy Science and Technology, Graduate School at Shenzhen, Tsinghua University, Shenzhen, 518055, PR China.
| | - Haoxiang Zhang
- School of Life Sciences, Tsinghua University, Beijing, 100084, PR China. .,Division of Life Science, Key Lab in Healthy Science and Technology, Graduate School at Shenzhen, Tsinghua University, Shenzhen, 518055, PR China.
| | - Xueshuang Mei
- ENT Department, Peking University Shenzhen Hospital, Shenzhen, 518055, PR China.
| | - Kai Cui
- School of Life Sciences, Tsinghua University, Beijing, 100084, PR China. .,Division of Life Science, Key Lab in Healthy Science and Technology, Graduate School at Shenzhen, Tsinghua University, Shenzhen, 518055, PR China.
| | - Nunu Huang
- School of Life Sciences, Tsinghua University, Beijing, 100084, PR China. .,Division of Life Science, Key Lab in Healthy Science and Technology, Graduate School at Shenzhen, Tsinghua University, Shenzhen, 518055, PR China.
| | - Weidong Xie
- Division of Life Science, Key Lab in Healthy Science and Technology, Graduate School at Shenzhen, Tsinghua University, Shenzhen, 518055, PR China.
| | - Naihan Xu
- Division of Life Science, Key Lab in Healthy Science and Technology, Graduate School at Shenzhen, Tsinghua University, Shenzhen, 518055, PR China.
| | - Yaou Zhang
- Division of Life Science, Key Lab in Healthy Science and Technology, Graduate School at Shenzhen, Tsinghua University, Shenzhen, 518055, PR China.
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Functional Role of the microRNA-200 Family in Breast Morphogenesis and Neoplasia. Genes (Basel) 2014; 5:804-20. [PMID: 25216122 PMCID: PMC4198932 DOI: 10.3390/genes5030804] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2014] [Revised: 09/03/2014] [Accepted: 09/04/2014] [Indexed: 12/21/2022] Open
Abstract
Branching epithelial morphogenesis is closely linked to epithelial-to-mesenchymal transition (EMT), a process important in normal development and cancer progression. The miR-200 family regulates epithelial morphogenesis and EMT through a negative feedback loop with the ZEB1 and ZEB2 transcription factors. miR-200 inhibits expression of ZEB1/2 mRNA, which in turn can down-regulate the miR-200 family that further results in down-regulation of E-cadherin and induction of a mesenchymal phenotype. Recent studies show that the expression of miR-200 genes is high during late pregnancy and lactation, thereby indicating that these miRs are important for breast epithelial morphogenesis and differentiation. miR-200 genes have been studied intensively in relation to breast cancer progression and metastasis, where it has been shown that miR-200 members are down-regulated in basal-like breast cancer where the EMT phenotype is prominent. There is growing evidence that the miR-200 family is up-regulated in distal breast metastasis indicating that these miRs are important for colonization of metastatic breast cancer cells through induction of mesenchymal to epithelial transition. The dual role of miR-200 in primary and metastatic breast cancer is of interest for future therapeutic interventions, making it important to understand its role and interacting partners in more detail.
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Trümbach D, Prakash N. The conserved miR-8/miR-200 microRNA family and their role in invertebrate and vertebrate neurogenesis. Cell Tissue Res 2014; 359:161-77. [PMID: 24875007 DOI: 10.1007/s00441-014-1911-z] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2014] [Accepted: 05/05/2014] [Indexed: 01/24/2023]
Abstract
Since their discovery in the early 1990s, microRNAs have emerged as key components of the post-transcriptional regulation of gene expression. MicroRNAs occur in the plant and animal kingdoms, with the numbers of microRNAs encoded in the genome increasing together with the evolutionary expansion of the phyla. By base-pairing with complementary sequences usually located within the 3' untranslated region, microRNAs target mRNAs for degradation, destabilization and/or translational inhibition. Because one microRNA can have many, if not hundreds, of target mRNAs and because one mRNA can, in turn, be targeted by many microRNAs, these small single-stranded RNAs can exert extensive pleiotropic functions during the development, adulthood and ageing of an organism. Specific functions of an increasing number of microRNAs have been described for the invertebrate and vertebrate nervous systems. Among these, the miR-8/miR-200 microRNA family has recently emerged as an important regulator of neurogenesis and gliogenesis and of adult neural homeostasis in the central nervous system of fruit flies, zebrafish and rodents. This highly conserved microRNA family consists of a single ortholog in the fruit fly (miR-8) and five members in vertebrates (miR-200a, miR-200b, miR-200c, miR-141 and miR-429). Here, we review our current knowledge about the functions of the miR-8/miR-200 microRNA family during invertebrate and vertebrate neural development and adult homeostasis and, in particular, about their role in the regulation of neural stem/progenitor cell proliferation, cell cycle exit, transition to a neural precursor/neuroblast state, neuronal differentiation and cell survival and during glial cell growth and differentiation into mature oligodendrocytes.
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Affiliation(s)
- Dietrich Trümbach
- Institute of Developmental Genetics, Helmholtz Zentrum München, Deutsches Forschungszentrum für Gesundheit und Umwelt, Ingolstädter Landstrasse 1, 85764, Neuherberg, Germany
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