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Hernández-Magaña A, Bensussen A, Martínez-García JC, Álvarez-Buylla ER. Engineering principles for rationally design therapeutic strategies against hepatocellular carcinoma. Front Mol Biosci 2024; 11:1404319. [PMID: 38939509 PMCID: PMC11208463 DOI: 10.3389/fmolb.2024.1404319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2024] [Accepted: 05/23/2024] [Indexed: 06/29/2024] Open
Abstract
The search for new therapeutic strategies against cancer has favored the emergence of rationally designed treatments. These treatments have focused on attacking cell plasticity mechanisms to block the transformation of epithelial cells into cancerous cells. The aim of these approaches was to control particularly lethal cancers such as hepatocellular carcinoma. However, they have not been able to control the progression of cancer for unknown reasons. Facing this scenario, emerging areas such as systems biology propose using engineering principles to design and optimize cancer treatments. Beyond the possibilities that this approach might offer, it is necessary to know whether its implementation at a clinical level is viable or not. Therefore, in this paper, we will review the engineering principles that could be applied to rationally design strategies against hepatocellular carcinoma, and discuss whether the necessary elements exist to implement them. In particular, we will emphasize whether these engineering principles could be applied to fight hepatocellular carcinoma.
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Affiliation(s)
| | - Antonio Bensussen
- Departamento de Control Automático, Cinvestav-IPN, Ciudad de México, Mexico
| | | | - Elena R. Álvarez-Buylla
- Instituto de Ecología, Universidad Nacional Autónoma de México, Ciudad de México, Mexico
- Centro de Ciencias de la Complejidad (C3), Universidad Nacional Autónoma de México, Ciudad de México, Mexico
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2
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García de Herreros A. Dual role of Snail1 as transcriptional repressor and activator. Biochim Biophys Acta Rev Cancer 2024; 1879:189037. [PMID: 38043804 DOI: 10.1016/j.bbcan.2023.189037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Revised: 11/27/2023] [Accepted: 11/27/2023] [Indexed: 12/05/2023]
Abstract
Snail1 transcriptional factor plays a key role in the control of epithelial to mesenchymal transition, a process that remodels tumor cells increasing their invasion and chemo-resistance as well as reprograms their metabolism and provides stemness properties. During this transition, Snail1 acts as a transcriptional repressor and, as growing evidences have demonstrated, also as a direct activator of mesenchymal genes. In this review, I describe the different proteins that interact with Snail1 and are responsible for these two different functions on gene expression; I focus on the transcriptional factors that associate to Snail1 in their target promoters, both activated and repressed. I also present working models for Snail1 action both as repressor and activator and raise some issues that still need to be investigated.
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Affiliation(s)
- Antonio García de Herreros
- Programa de Recerca en Càncer, Hospital del Mar Research Institute (IMIM), Unidad Asociada al CSIC, Barcelona, Spain; Departament de Medicina i Ciències de la Vida, Universitat Pompeu Fabra, Barcelona, Spain.
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3
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Ducos B, Bensimon D, Scerbo P. Vertebrate Cell Differentiation, Evolution, and Diseases: The Vertebrate-Specific Developmental Potential Guardians VENTX/ NANOG and POU5/ OCT4 Enter the Stage. Cells 2022; 11:cells11152299. [PMID: 35892595 PMCID: PMC9331430 DOI: 10.3390/cells11152299] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Revised: 07/09/2022] [Accepted: 07/13/2022] [Indexed: 01/02/2023] Open
Abstract
During vertebrate development, embryonic cells pass through a continuum of transitory pluripotent states that precede multi-lineage commitment and morphogenesis. Such states are referred to as “refractory/naïve” and “competent/formative” pluripotency. The molecular mechanisms maintaining refractory pluripotency or driving the transition to competent pluripotency, as well as the cues regulating multi-lineage commitment, are evolutionarily conserved. Vertebrate-specific “Developmental Potential Guardians” (vsDPGs; i.e., VENTX/NANOG, POU5/OCT4), together with MEK1 (MAP2K1), coordinate the pluripotency continuum, competence for multi-lineage commitment and morphogenesis in vivo. During neurulation, vsDPGs empower ectodermal cells of the neuro-epithelial border (NEB) with multipotency and ectomesenchyme potential through an “endogenous reprogramming” process, giving rise to the neural crest cells (NCCs). Furthermore, vsDPGs are expressed in undifferentiated-bipotent neuro-mesodermal progenitor cells (NMPs), which participate in posterior axis elongation and growth. Finally, vsDPGs are involved in carcinogenesis, whereby they confer selective advantage to cancer stem cells (CSCs) and therapeutic resistance. Intriguingly, the heterogenous distribution of vsDPGs in these cell types impact on cellular potential and features. Here, we summarize the findings about the role of vsDPGs during vertebrate development and their selective advantage in evolution. Our aim to present a holistic view regarding vsDPGs as facilitators of both cell plasticity/adaptability and morphological innovation/variation. Moreover, vsDPGs may also be at the heart of carcinogenesis by allowing malignant cells to escape from physiological constraints and surveillance mechanisms.
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Affiliation(s)
- Bertrand Ducos
- LPENS, PSL, CNRS, 24 rue Lhomond, 75005 Paris, France
- IBENS, PSL, CNRS, 46 rue d’Ulm, 75005 Paris, France
- High Throughput qPCR Core Facility, ENS, PSL, 46 rue d’Ulm, 75005 Paris, France
- Correspondence: (B.D.); (D.B.); (P.S.)
| | - David Bensimon
- LPENS, PSL, CNRS, 24 rue Lhomond, 75005 Paris, France
- IBENS, PSL, CNRS, 46 rue d’Ulm, 75005 Paris, France
- Department of Chemistry and Biochemistry, UCLA, Los Angeles, CA 90094, USA
- Correspondence: (B.D.); (D.B.); (P.S.)
| | - Pierluigi Scerbo
- LPENS, PSL, CNRS, 24 rue Lhomond, 75005 Paris, France
- IBENS, PSL, CNRS, 46 rue d’Ulm, 75005 Paris, France
- Correspondence: (B.D.); (D.B.); (P.S.)
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4
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Elia I, Realini G, Di Mauro V, Borghi S, Bottoni L, Tornambè S, Vitiello L, Weiss SJ, Chiariello M, Tamburrini A, Oliviero S, Neri F, Orlandini M, Galvagni F. SNAI1 is upregulated during muscle regeneration and represses FGF21 and ATF3 expression by directly binding their promoters. FASEB J 2022; 36:e22401. [PMID: 35726676 DOI: 10.1096/fj.202200215r] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Revised: 05/19/2022] [Accepted: 05/26/2022] [Indexed: 11/11/2022]
Abstract
During skeletal myogenesis, the zinc-finger transcription factors SNAI1 and SNAI2, are expressed in proliferating myoblasts and regulate the transition to terminally differentiated myotubes while repressing pro-differentiation genes. Here, we demonstrate that SNAI1 is upregulated in vivo during the early phase of muscle regeneration induced by bupivacaine injury. Using shRNA-mediated gene silencing in C2C12 myoblasts and whole-transcriptome microarray analysis, we identified a collection of genes belonging to the endoplasmic reticulum (ER) stress pathway whose expression, induced by myogenic differentiation, was upregulated in absence of SNAI1. Among these, key ER stress genes, such as Atf3, Ddit3/Chop, Hspa5/Bip, and Fgf21, a myokine involved in muscle differentiation, were strongly upregulated. Furthermore, by promoter mutant analysis and Chromatin immune precipitation assay, we demonstrated that SNAI1 represses Fgf21 and Atf3 in proliferating myoblasts by directly binding to multiple E boxes in their respective promoter regions. Together, these data describe a new regulatory mechanism of myogenic differentiation involving the direct repressive action of SNAI1 on ER stress and Fgf21 expression, ultimately contributing to maintaining the proliferative and undifferentiated state of myoblasts.
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Affiliation(s)
- Ines Elia
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, Siena, Italy
| | - Giulia Realini
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, Siena, Italy
| | - Vittoria Di Mauro
- IRCCS-Humanitas Research Hospital, Rozzano, Italy.,Institute of Genetic and Biomedical Research (IRGB), Milan Unit, National Research Council, Via Fantoli 16/15, Milan, 20138, Italy
| | - Sara Borghi
- Department of Pathology, NYU Grossman School of Medicine, New York, New York, USA.,Immune Monitoring Laboratory, NYU Langone Health, 550 First Avenue, New York, NY, 10016, USA
| | - Laura Bottoni
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, Siena, Italy
| | - Salvatore Tornambè
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, Siena, Italy
| | | | - Stephen J Weiss
- Division of Genetic Medicine, Department of Internal Medicine, Life Sciences Institute, University of Michigan, Ann Arbor, Michigan, USA
| | - Mario Chiariello
- Istituto di Fisiologia Clinica (IFC), Consiglio Nazionale delle Ricerche (CNR) and Core Research Laboratory (CRL), Istituto per lo Studio, la Prevenzione e la Rete Oncologica (ISPRO), Siena, Italy
| | - Annalaura Tamburrini
- Department of Life Science and Systems Biology, Università degli Studi di Torino, Turin, Italy.,IIGM - Italian Institute for Genomic Medicine, c/o IRCCS, Candiolo, Italy
| | - Salvatore Oliviero
- Department of Life Science and Systems Biology, Università degli Studi di Torino, Turin, Italy.,IIGM - Italian Institute for Genomic Medicine, c/o IRCCS, Candiolo, Italy
| | - Francesco Neri
- Department of Life Science and Systems Biology, Università degli Studi di Torino, Turin, Italy
| | - Maurizio Orlandini
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, Siena, Italy
| | - Federico Galvagni
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, Siena, Italy
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5
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Tosi GM, Regoli M, Altera A, Galvagni F, Arcuri C, Bacci T, Elia I, Realini G, Orlandini M, Bertelli E. Heat Shock Protein 90 Involvement in the Development of Idiopathic Epiretinal Membranes. Invest Ophthalmol Vis Sci 2021; 61:34. [PMID: 32716502 PMCID: PMC7425702 DOI: 10.1167/iovs.61.8.34] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
Purpose This work was aimed to further characterize cells of idiopathic epiretinal membranes (iERMs). We wanted to determine the contribution of 90-kDa heat shock protein (HSP90) to sustain the transforming growth factor-β (TGF-β)-mediated signal transduction pathway in iERM. Methods Immunofluorescence and confocal microscopy were carried out on deplasticized sections from 36 epiretinal membranes processed for electron microscopy and on frozen sections from five additional samples with antibodies against α-smooth muscle actin (αSMA), vimentin, glial fibrillary acidic protein (GFAP), SMAD2, HSP90α, type-II TGF-β1 receptor (TβRII), type-I collagen, and type-IV collagen. In addition, Müller MIO-M1 cells were transfected with HSP90 and challenged with TGF-β1. Results Double and triple labeling experiments showed that a variable number of TβRII+ cells were present in 94.1% of tested iERMs and they were mostly GFAP-/αSMA+/vimentin+/HSP90α+. In almost half of the cases these cells contained type-I collagen, suggesting their involvement in matrix deposition. HSP90 overexpressing MIO-M1 cells challenged with TGF-β1 showed increased levels of TβRII, SMAD2, SMAD3, and phosphor-SMAD2. Nuclear SMAD2 staining could be observed in HSP90α+ cells on frozen sections of iERMs. Conclusions Cells in iERMs that express TβRII are also HSP90α+ and show the antigenic profile of myofibroblast-like cells as they are GFAP-/αSMA+/vimentin+. HSP90α-overexpressing MIO-M1 cells challenged with TGF-β1 showed an increased activation of the SMAD pathway implying that HSP90α might play a role in sustaining the TGF-β1-induced fibrotic response of iERM cells.
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6
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Sanders LM, Cheney A, Seninge L, van den Bout A, Chen M, Beale HC, Kephart ET, Pfeil J, Learned K, Lyle AG, Bjork I, Haussler D, Salama SR, Vaske OM. Identification of a differentiation stall in epithelial mesenchymal transition in histone H3-mutant diffuse midline glioma. Gigascience 2020; 9:giaa136. [PMID: 33319914 PMCID: PMC7736793 DOI: 10.1093/gigascience/giaa136] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Revised: 08/17/2020] [Accepted: 11/05/2020] [Indexed: 01/04/2023] Open
Abstract
BACKGROUND Diffuse midline gliomas with histone H3 K27M (H3K27M) mutations occur in early childhood and are marked by an invasive phenotype and global decrease in H3K27me3, an epigenetic mark that regulates differentiation and development. H3K27M mutation timing and effect on early embryonic brain development are not fully characterized. RESULTS We analyzed multiple publicly available RNA sequencing datasets to identify differentially expressed genes between H3K27M and non-K27M pediatric gliomas. We found that genes involved in the epithelial-mesenchymal transition (EMT) were significantly overrepresented among differentially expressed genes. Overall, the expression of pre-EMT genes was increased in the H3K27M tumors as compared to non-K27M tumors, while the expression of post-EMT genes was decreased. We hypothesized that H3K27M may contribute to gliomagenesis by stalling an EMT required for early brain development, and evaluated this hypothesis by using another publicly available dataset of single-cell and bulk RNA sequencing data from developing cerebral organoids. This analysis revealed similarities between H3K27M tumors and pre-EMT normal brain cells. Finally, a previously published single-cell RNA sequencing dataset of H3K27M and non-K27M gliomas revealed subgroups of cells at different stages of EMT. In particular, H3.1K27M tumors resemble a later EMT stage compared to H3.3K27M tumors. CONCLUSIONS Our data analyses indicate that this mutation may be associated with a differentiation stall evident from the failure to proceed through the EMT-like developmental processes, and that H3K27M cells preferentially exist in a pre-EMT cell phenotype. This study demonstrates how novel biological insights could be derived from combined analysis of several previously published datasets, highlighting the importance of making genomic data available to the community in a timely manner.
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Affiliation(s)
- Lauren M Sanders
- Department of Biomolecular Engineering, University of California Santa Cruz, 1156 High Street, Santa Cruz, CA 95064, USA
- University of California Santa Cruz Genomics Institute, University of California Santa Cruz, 1156 High Street, Santa Cruz, CA 95064, USA
| | - Allison Cheney
- Department of Molecular, Cell and Developmental Biology, University of California Santa Cruz, 1156 High Street, Santa Cruz, CA 95064, USA
| | - Lucas Seninge
- Department of Biomolecular Engineering, University of California Santa Cruz, 1156 High Street, Santa Cruz, CA 95064, USA
- University of California Santa Cruz Genomics Institute, University of California Santa Cruz, 1156 High Street, Santa Cruz, CA 95064, USA
| | - Anouk van den Bout
- University of California Santa Cruz Genomics Institute, University of California Santa Cruz, 1156 High Street, Santa Cruz, CA 95064, USA
- Department of Molecular, Cell and Developmental Biology, University of California Santa Cruz, 1156 High Street, Santa Cruz, CA 95064, USA
| | - Marissa Chen
- University of California Santa Cruz Genomics Institute, University of California Santa Cruz, 1156 High Street, Santa Cruz, CA 95064, USA
- Department of Molecular, Cell and Developmental Biology, University of California Santa Cruz, 1156 High Street, Santa Cruz, CA 95064, USA
| | - Holly C Beale
- University of California Santa Cruz Genomics Institute, University of California Santa Cruz, 1156 High Street, Santa Cruz, CA 95064, USA
- Department of Molecular, Cell and Developmental Biology, University of California Santa Cruz, 1156 High Street, Santa Cruz, CA 95064, USA
| | - Ellen Towle Kephart
- University of California Santa Cruz Genomics Institute, University of California Santa Cruz, 1156 High Street, Santa Cruz, CA 95064, USA
| | - Jacob Pfeil
- Department of Biomolecular Engineering, University of California Santa Cruz, 1156 High Street, Santa Cruz, CA 95064, USA
- University of California Santa Cruz Genomics Institute, University of California Santa Cruz, 1156 High Street, Santa Cruz, CA 95064, USA
| | - Katrina Learned
- University of California Santa Cruz Genomics Institute, University of California Santa Cruz, 1156 High Street, Santa Cruz, CA 95064, USA
| | - A Geoffrey Lyle
- University of California Santa Cruz Genomics Institute, University of California Santa Cruz, 1156 High Street, Santa Cruz, CA 95064, USA
- Department of Molecular, Cell and Developmental Biology, University of California Santa Cruz, 1156 High Street, Santa Cruz, CA 95064, USA
| | - Isabel Bjork
- University of California Santa Cruz Genomics Institute, University of California Santa Cruz, 1156 High Street, Santa Cruz, CA 95064, USA
| | - David Haussler
- Department of Biomolecular Engineering, University of California Santa Cruz, 1156 High Street, Santa Cruz, CA 95064, USA
- University of California Santa Cruz Genomics Institute, University of California Santa Cruz, 1156 High Street, Santa Cruz, CA 95064, USA
- Howard Hughes Medical Institute, 1156 High Street, Santa Cruz, CA 95064, USA
| | - Sofie R Salama
- Department of Biomolecular Engineering, University of California Santa Cruz, 1156 High Street, Santa Cruz, CA 95064, USA
- University of California Santa Cruz Genomics Institute, University of California Santa Cruz, 1156 High Street, Santa Cruz, CA 95064, USA
- Howard Hughes Medical Institute, 1156 High Street, Santa Cruz, CA 95064, USA
| | - Olena M Vaske
- University of California Santa Cruz Genomics Institute, University of California Santa Cruz, 1156 High Street, Santa Cruz, CA 95064, USA
- Department of Molecular, Cell and Developmental Biology, University of California Santa Cruz, 1156 High Street, Santa Cruz, CA 95064, USA
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7
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Wang H, Unternaehrer JJ. Epithelial-mesenchymal Transition and Cancer Stem Cells: At the Crossroads of Differentiation and Dedifferentiation. Dev Dyn 2018; 248:10-20. [DOI: 10.1002/dvdy.24678] [Citation(s) in RCA: 63] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2018] [Revised: 05/29/2018] [Accepted: 09/27/2018] [Indexed: 12/12/2022] Open
Affiliation(s)
- Hanmin Wang
- Division of Biochemistry, Department of Basic Sciences; Loma Linda University; Loma Linda California
| | - Juli J. Unternaehrer
- Division of Biochemistry, Department of Basic Sciences; Loma Linda University; Loma Linda California
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8
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Kotarba G, Krzywinska E, Grabowska AI, Taracha A, Wilanowski T. TFCP2/TFCP2L1/UBP1 transcription factors in cancer. Cancer Lett 2018; 420:72-79. [PMID: 29410248 DOI: 10.1016/j.canlet.2018.01.078] [Citation(s) in RCA: 58] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2017] [Revised: 01/30/2018] [Accepted: 01/30/2018] [Indexed: 12/20/2022]
Abstract
The TFCP2/Grainyhead family of transcription factors is divided into two distinct subfamilies, one of which includes the Grainyhead-like 1-3 (GRHL1-3) proteins and the other consists of TFCP2 (synonyms: CP2, LSF, LBP-1c), TFCP2L1 (synonyms: CRTR-1, LBP-9) and UBP1 (synonyms: LBP-1a, NF2d9). Transcription factors from the TFCP2/TFCP2L1/UBP1 subfamily are involved in various aspects of cancer development. TFCP2 is a pro-oncogenic factor in hepatocellular carcinoma, pancreatic cancer and breast cancer, may be important in cervical carcinogenesis and in colorectal cancer. TFCP2 can also act as a tumor suppressor, for example, it inhibits melanoma growth. Furthermore, TFCP2 is involved in epithelial-mesenchymal transition and enhances angiogenesis. TFCP2L1 maintains pluripotency and self-renewal of embryonic stem cells and was implicated in a wide variety of cancers, including clear cell renal cell carcinoma, breast cancer and thyroid cancer. Here we present a systematic review of current knowledge of this protein subfamily in the context of cancer. We also discuss potential challenges in investigating this family of transcription factors. These challenges include redundancies between these factors as well as their interactions with each other and their ability to modulate each other's activity.
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Affiliation(s)
- Grzegorz Kotarba
- Laboratory of Signal Transduction, Department of Cell Biology, Nencki Institute of Experimental Biology of Polish Academy of Sciences, 3 Pasteur St., 02-093 Warsaw, Poland.
| | - Ewa Krzywinska
- Laboratory of Signal Transduction, Department of Cell Biology, Nencki Institute of Experimental Biology of Polish Academy of Sciences, 3 Pasteur St., 02-093 Warsaw, Poland.
| | - Anna I Grabowska
- Laboratory of Neuroplasticity, Department of Molecular and Cellular Neurobiology, Nencki Institute of Experimental Biology of Polish Academy of Sciences, 3 Pasteur St., 02-093 Warsaw, Poland.
| | - Agnieszka Taracha
- Laboratory of Signal Transduction, Department of Cell Biology, Nencki Institute of Experimental Biology of Polish Academy of Sciences, 3 Pasteur St., 02-093 Warsaw, Poland.
| | - Tomasz Wilanowski
- Laboratory of Signal Transduction, Department of Cell Biology, Nencki Institute of Experimental Biology of Polish Academy of Sciences, 3 Pasteur St., 02-093 Warsaw, Poland.
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9
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Jang S, Choubey S, Furchtgott L, Zou LN, Doyle A, Menon V, Loew EB, Krostag AR, Martinez RA, Madisen L, Levi BP, Ramanathan S. Dynamics of embryonic stem cell differentiation inferred from single-cell transcriptomics show a series of transitions through discrete cell states. eLife 2017; 6:20487. [PMID: 28296635 PMCID: PMC5352225 DOI: 10.7554/elife.20487] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2016] [Accepted: 01/31/2017] [Indexed: 02/06/2023] Open
Abstract
The complexity of gene regulatory networks that lead multipotent cells to acquire different cell fates makes a quantitative understanding of differentiation challenging. Using a statistical framework to analyze single-cell transcriptomics data, we infer the gene expression dynamics of early mouse embryonic stem (mES) cell differentiation, uncovering discrete transitions across nine cell states. We validate the predicted transitions across discrete states using flow cytometry. Moreover, using live-cell microscopy, we show that individual cells undergo abrupt transitions from a naïve to primed pluripotent state. Using the inferred discrete cell states to build a probabilistic model for the underlying gene regulatory network, we further predict and experimentally verify that these states have unique response to perturbations, thus defining them functionally. Our study provides a framework to infer the dynamics of differentiation from single cell transcriptomics data and to build predictive models of the gene regulatory networks that drive the sequence of cell fate decisions during development. DOI:http://dx.doi.org/10.7554/eLife.20487.001
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Affiliation(s)
- Sumin Jang
- FAS Center for Systems Biology, Harvard University, Cambridge, United States.,Department of Molecular and Cellular Biology, Harvard University, Cambridge, United States
| | - Sandeep Choubey
- FAS Center for Systems Biology, Harvard University, Cambridge, United States.,Department of Molecular and Cellular Biology, Harvard University, Cambridge, United States
| | - Leon Furchtgott
- FAS Center for Systems Biology, Harvard University, Cambridge, United States.,Biophysics Program, Harvard University, Cambridge, United States
| | - Ling-Nan Zou
- FAS Center for Systems Biology, Harvard University, Cambridge, United States
| | - Adele Doyle
- FAS Center for Systems Biology, Harvard University, Cambridge, United States.,Department of Molecular and Cellular Biology, Harvard University, Cambridge, United States
| | - Vilas Menon
- Allen Institute for Brain Science, Seattle, United States
| | - Ethan B Loew
- FAS Center for Systems Biology, Harvard University, Cambridge, United States.,Department of Molecular and Cellular Biology, Harvard University, Cambridge, United States
| | | | | | - Linda Madisen
- Allen Institute for Brain Science, Seattle, United States
| | - Boaz P Levi
- Allen Institute for Brain Science, Seattle, United States
| | - Sharad Ramanathan
- FAS Center for Systems Biology, Harvard University, Cambridge, United States.,Department of Molecular and Cellular Biology, Harvard University, Cambridge, United States.,Allen Institute for Brain Science, Seattle, United States.,School of Engineering and Applied Sciences, Harvard University, Cambridge, United States.,Harvard Stem Cell Institute, Harvard University, Cambridge, United States
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10
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Li H, Yan X, Liu L, Huang L, Yin M, Pan C, Zhang P, Qin H. T-cell leukemia/lymphoma-1A predicts the clinical outcome for patients with stage II/III colorectal cancer. Biomed Pharmacother 2017; 88:924-930. [PMID: 28178623 DOI: 10.1016/j.biopha.2017.01.128] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2016] [Accepted: 01/21/2017] [Indexed: 12/18/2022] Open
Abstract
T-cell leukemia/lymphoma-1A (TCL1A) as a stem cell marker is abundantly expressed in embryonic stem cells and has been identified as an oncogene in various hematological malignancies such as chronic lymphocytic leukemia and B-cell lymphoma. However, with regard to its role in solid tumors, few studies are available and less are for colorectal cancer (CRC). In this study, we aim to investigate the expression and clinical significance of TCL1A in a cohort of 278 stage II/III CRC patients. As a result, we find TCL1A expression is higher in CRC tissues than that in adjacent normal tissues, and significantly correlated with tumor differentiation, TNM stage and Ki-67 positive rate. The prognostic analysis suggests that TCL1A expression is an independent factor affecting CRC-specific and disease-free survival of these patients. Furthermore, we find stage II/III patients with high TCL1A expression have a significantly higher rate of postoperative local recurrence and metastasis than those with low TCL1A expression. Finally, through subgroup analysis, we find TCL1A expression can stratify the outcome of stage II/III patients who received standard adjuvant chemotherapy. Taken together, our findings suggest TCL1A is not only a useful biomarker for prognostic evaluation in stage II/III CRC patients, but also a promising therapeutic target for improving their clinical outcome.
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Affiliation(s)
- Hao Li
- Department of General Surgery, Shanghai Tenth People's Hospital Affiliated to Tongji University No. 301, Yan-chang Road, Shanghai 200072, China
| | - Xuebing Yan
- Department of General Surgery, Shanghai Tenth People's Hospital Affiliated to Tongji University No. 301, Yan-chang Road, Shanghai 200072, China
| | - Liguo Liu
- Department of General Surgery, The Sixth People's Hospital Affiliated to Shanghai Jiao Tong University No. 600, Yi-shan Road, Shanghai 200233, China
| | - Linsheng Huang
- Department of General Surgery, Shanghai Tenth People's Hospital Affiliated to Tongji University No. 301, Yan-chang Road, Shanghai 200072, China
| | - Mingming Yin
- Department of General Surgery, Shanghai Tenth People's Hospital Affiliated to Tongji University No. 301, Yan-chang Road, Shanghai 200072, China
| | - Cheng Pan
- Department of General Surgery, Shanghai Tenth People's Hospital Affiliated to Tongji University No. 301, Yan-chang Road, Shanghai 200072, China
| | - Peng Zhang
- Department of General Surgery, Shanghai Tenth People's Hospital Affiliated to Tongji University No. 301, Yan-chang Road, Shanghai 200072, China.
| | - Huanlong Qin
- Department of General Surgery, Shanghai Tenth People's Hospital Affiliated to Tongji University No. 301, Yan-chang Road, Shanghai 200072, China.
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11
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Galvagni F, Neri F. Snai1 represses Nanog to promote embryonic stem cell differentiation. GENOMICS DATA 2015; 4:82-3. [PMID: 26484184 PMCID: PMC4535745 DOI: 10.1016/j.gdata.2015.03.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/19/2015] [Accepted: 03/23/2015] [Indexed: 11/18/2022]
Abstract
Embryonic stem cell (ESC) self-renewal and pluripotency is maintained by an external signaling pathways and intrinsic regulatory networks involving ESC-specific transcriptional complexes (mainly formed by OCT3/4, Sox2 and Nanog proteins), the Polycomb repressive complex 2 (PRC2) and DNA methylation [1], [2], [3], [4], [5], [6], [7], [8]. Among these, Nanog represents the more ESC specific factor and its repression correlates with the loss of pluripotency and ESC differentiation [9], [10], [11]. During ESC early differentiation, many development-associated genes become upregulated and although, in general, much is known about the pluripotency self-renewal circuitry, the molecular events that lead ESCs to exit from pluripotency and begin differentiation are largely unknown. Snai1 is one the most early induced genes during ESC differentiation in vitro and in vivo [12], [13]. Here we show that Snai1 is able to directly repress several stemness-associated genes including Nanog. We use a ESC stable-line expressing a inducible Snai1 protein. We here show microarray analysis of embryonic stem cells (ESC) expressing Snail-ER at various time points of induction with 4-OH. Data were deposited in Gene Expression Omnibus (GEO) datasets under reference GSE57854 and here: http://epigenetics.hugef-research.org/data.php.
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Affiliation(s)
- F. Galvagni
- Dipartimento di Biotecnologie, Chimica e Farmacia, Università di Siena, via A. Moro 2, 53100 Siena, Italy
| | - F. Neri
- Human Genetics Foundation (HuGeF), via Nizza 52, 10126 Torino, Italy
- Next Generation Intelligence (NGI), Torino, Italy
- Corresponding author at: via Nizza 52, Torino, 10126, Italy.
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