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Fung KY, de Geus ED, Ying L, Cumming H, Bourke N, Foster SC, Hertzog PJ. Expression of Interferon Epsilon in Mucosal Epithelium is Regulated by Elf3. Mol Cell Biol 2024; 44:334-343. [PMID: 38975675 PMCID: PMC11296529 DOI: 10.1080/10985549.2024.2366207] [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: 06/03/2024] [Accepted: 06/05/2024] [Indexed: 07/09/2024] Open
Abstract
Interferon epsilon (IFNε) is a unique type I interferon (IFN) that shows distinct constitutive expression in reproductive tract epithelium. Understanding how IFNε expression is regulated is critical for the mechanism of action in protecting the mucosa from infection. Combined computational and experimental investigation of the promoter of IFNε predicted transcription factor binding sites for the ETS family of transcription factors. We demonstrate here that Ifnε is regulated by Elf3, an epithelial restricted member of the ETS family. It is co-expressed with IFNε at the epithelium of uterus, lung and intestine, and we focused on regulation of IFNε expression in the uterus. Promoter reporter studies demonstrated that Elf3 was a strong driver of Ifnε expression; knockdown of Elf3 reduced expression levels of IFNε; Elf3 regulated Ifnε expression and chromatin immunoprecipitation (ChIP) confirmed the direct binding of Elf3 to the IFNε promoter. These data show that Elf3 is important in regulating protective mucosal immunity by driving constitutive expression of IFNε to protect mucosal tissues from infection in at least three organ systems.
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Affiliation(s)
- Ka Yee Fung
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, Clayton, Victoria, Australia
- Department of Molecular and Translational Science, Monash University, Clayton, Victoria, Australia
| | - Eveline D. de Geus
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, Clayton, Victoria, Australia
- Department of Molecular and Translational Science, Monash University, Clayton, Victoria, Australia
| | - Le Ying
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, Clayton, Victoria, Australia
- Department of Molecular and Translational Science, Monash University, Clayton, Victoria, Australia
| | - Helen Cumming
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, Clayton, Victoria, Australia
- Department of Molecular and Translational Science, Monash University, Clayton, Victoria, Australia
| | - Nollaig Bourke
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, Clayton, Victoria, Australia
- Department of Molecular and Translational Science, Monash University, Clayton, Victoria, Australia
| | - Samuel C. Foster
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, Clayton, Victoria, Australia
- Department of Molecular and Translational Science, Monash University, Clayton, Victoria, Australia
| | - Paul J. Hertzog
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, Clayton, Victoria, Australia
- Department of Molecular and Translational Science, Monash University, Clayton, Victoria, Australia
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2
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Ju Y, Fang S, Liu L, Ma H, Zheng L. The function of the ELF3 gene and its mechanism in cancers. Life Sci 2024; 346:122637. [PMID: 38614305 DOI: 10.1016/j.lfs.2024.122637] [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: 01/28/2024] [Revised: 04/01/2024] [Accepted: 04/10/2024] [Indexed: 04/15/2024]
Abstract
E74-like factor 3 (ELF3) is an important member of the E-twenty-six (ETS) transcription factor family. ELF3 is expressed in various types of cells and regulates a variety of biological behaviors, such as cell proliferation, differentiation, apoptosis, migration, and invasion, by binding to DNA to regulate the expression of other genes. In recent years, studies have shown that ELF3 plays an important role in the occurrence and development of many tumors and inflammation and immune related diseases. ELF3 has different functions and expression patterns in different tumors; it can function as a tumor suppressor gene or an oncogene, highlighting its dual effects of tumor promotion and inhibition. ELF3 also affects the levels of tumor immunity-related cytokines and is involved in the regulation and expression of multiple signaling pathways. In tumor therapy, ELF3 is a complex and multifunctional gene and has become a key focus of targeted treatment research. An in-depth study of the biological function of ELF3 can help to elucidate its role in biological processes and provide ideas and a basis for the development and clinical application of ELF3-related therapeutic methods. This review introduces the structure and physiological and cellular functions of the ELF3 gene, summarizes the mechanisms of action of ELF3 in different types of malignant tumors and its role in immune regulation, inflammation, etc., and discusses treatment methods for ELF3-related diseases, providing significant reference value for scholars studying the ELF3 gene and related diseases.
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Affiliation(s)
- Yiheng Ju
- Affiliated Hospital of Qingdao University, Qingdao, China
| | - Sheng Fang
- Yantai Penglai People's Hospital, Yantai, China
| | - Lei Liu
- Affiliated Hospital of Qingdao University, Qingdao, China
| | - Hui Ma
- Affiliated Hospital of Qingdao University, Qingdao, China.
| | - Longbo Zheng
- Affiliated Hospital of Qingdao University, Qingdao, China.
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3
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Qiu Z, Liu Q, Wang L, Xiong Y, Wu J, Wang M, Yan X, Deng H. The copper transporter, SLC31A1, transcriptionally activated by ELF3, imbalances copper homeostasis to exacerbate cisplatin-induced acute kidney injury through mitochondrial dysfunction. Chem Biol Interact 2024; 393:110943. [PMID: 38462020 DOI: 10.1016/j.cbi.2024.110943] [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: 10/22/2023] [Revised: 02/26/2024] [Accepted: 03/06/2024] [Indexed: 03/12/2024]
Abstract
Acute kidney injury (AKI) is a common complication of cisplatin chemotherapy, which greatly limits its clinical effect and application. This study explored the function of solute Carrier Family 31 Member 1 (SLC31A1) in cisplatin-induced AKI and its possible mechanism. Mice and HK-2 cells were exposed to cisplatin to establish the in vivo and in vitro AKI models. Cell viability was detected by CCK-8. Mitochondrial and oxidative damage was determined by Mito-Tracker Green staining, mtROS level, ATP production, mitochondrial membrane potential, MDA content and CAT activity. AKI was evaluated by renal function and histopathological changes. Apoptosis was detected by TUNEL and caspase-3 expression. Molecule expression was measured by RT-qPCR, Western blotting, and immunohistochemistry. Molecular mechanism was studied by luciferase reporter assay and ChIP. SLC31A1 level was predominantly increased by cisplatin exposure in AKI models. Notably, copper ion (Cu+) level was enhanced by cisplatin challenge. Moreover, Cu+ supplementation intensified cisplatin-induced cell death, mitochondrial dysfunction, and oxidative stress in HK-2 cells, indicating the involvement of cuproptosis in cisplatin-induced AKI, whereas these changes were partially counteracted by SLC31A1 knockdown. E74 like ETS transcription factor 3 (ELF3) could directly bind to SLC31A1 promoter and promote its transcription. ELF3 was up-regulated and positively correlated with SLC31A1 expression upon cisplatin-induced AKI. SLC31A1 silencing restored renal function, alleviated mitochondrial dysfunction, and apoptosis in cisplatin-induced AKI mice. ELF3 transcriptionally activated SLC31A1 to trigger cuproptosis that drove cisplatin-induced AKI through mitochondrial dysfunction, indicating that SLC31A1 might be a promising therapeutic target to mitigate AKI during cisplatin chemotherapy.
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Affiliation(s)
- Zhimin Qiu
- General Department of Oncology, Jiangxi Cancer Hospital, The Second Affiliated Hospital of Nanchang Medical College, Jiangxi Clinical Research Center for Cancer, Nanchang, Jiangxi Province, China
| | - Qicen Liu
- Department of General Surgery, Hangzhou First People's Hospital, Hangzhou, Zhejiang Province, China
| | - Ling Wang
- Department of Nursing, Nanchang Medical College, Nanchang, Jiangxi Province, China
| | - Yingfen Xiong
- Department of Anaesthesiology, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi Province, China
| | - Juan Wu
- Department of Preventive Health Care, Jiangxi Cancer Hospital, The Second Affiliated Hospital of Nanchang Medical College, Jiangxi Clinical Research Center for Cancer, Nanchang, Jiangxi Province, China
| | - Meijian Wang
- General Department of Oncology, Jiangxi Cancer Hospital, The Second Affiliated Hospital of Nanchang Medical College, Jiangxi Clinical Research Center for Cancer, Nanchang, Jiangxi Province, China
| | - Xiluan Yan
- School of Pharmacy, Nanchang University, Nanchang, Jiangxi Province, China
| | - Huangying Deng
- General Department of Oncology, Jiangxi Cancer Hospital, The Second Affiliated Hospital of Nanchang Medical College, Jiangxi Clinical Research Center for Cancer, Nanchang, Jiangxi Province, China.
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4
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Song Q, Ruffalo M, Bar-Joseph Z. Using single cell atlas data to reconstruct regulatory networks. Nucleic Acids Res 2023; 51:e38. [PMID: 36762475 PMCID: PMC10123116 DOI: 10.1093/nar/gkad053] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2022] [Revised: 12/16/2022] [Accepted: 01/19/2023] [Indexed: 02/11/2023] Open
Abstract
Inference of global gene regulatory networks from omics data is a long-term goal of systems biology. Most methods developed for inferring transcription factor (TF)-gene interactions either relied on a small dataset or used snapshot data which is not suitable for inferring a process that is inherently temporal. Here, we developed a new computational method that combines neural networks and multi-task learning to predict RNA velocity rather than gene expression values. This allows our method to overcome many of the problems faced by prior methods leading to more accurate and more comprehensive set of identified regulatory interactions. Application of our method to atlas scale single cell data from 6 HuBMAP tissues led to several validated and novel predictions and greatly improved on prior methods proposed for this task.
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Affiliation(s)
- Qi Song
- Computational Biology Department, School of Computer Science, Carnegie Mellon University, Pittsburgh, PA 15213, USA
| | - Matthew Ruffalo
- Computational Biology Department, School of Computer Science, Carnegie Mellon University, Pittsburgh, PA 15213, USA
| | - Ziv Bar-Joseph
- Computational Biology Department, School of Computer Science, Carnegie Mellon University, Pittsburgh, PA 15213, USA.,Machine Learning Department, School of Computer Science, Carnegie Mellon University, Pittsburgh, PA 15213, USA
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5
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Van Campen H, Bishop JV, Abrahams VM, Bielefeldt-Ohmann H, Mathiason CK, Bouma GJ, Winger QA, Mayo CE, Bowen RA, Hansen TR. Maternal Influenza A Virus Infection Restricts Fetal and Placental Growth and Adversely Affects the Fetal Thymic Transcriptome. Viruses 2020; 12:v12091003. [PMID: 32911797 PMCID: PMC7551156 DOI: 10.3390/v12091003] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Revised: 09/02/2020] [Accepted: 09/04/2020] [Indexed: 12/14/2022] Open
Abstract
Maternal influenza A viral infections in humans are associated with low birth weight, increased risk of pre-term birth, stillbirth and congenital defects. To examine the effect of maternal influenza virus infection on placental and fetal growth, pregnant C57BL/6 mice were inoculated intranasally with influenza A virus A/CA/07/2009 pandemic H1N1 or phosphate-buffered saline (PBS) at E3.5, E7.5 or E12.5, and the placentae and fetuses collected and weighed at E18.5. Fetal thymuses were pooled from each litter. Placentae were examined histologically, stained by immunohistochemistry (IHC) for CD34 (hematopoietic progenitor cell antigen) and vascular channels quantified. RNA from E7.5 and E12.5 placentae and E7.5 fetal thymuses was subjected to RNA sequencing and pathway analysis. Placental weights were decreased in litters inoculated with influenza at E3.5 and E7.5. Placentae from E7.5 and E12.5 inoculated litters exhibited decreased labyrinth development and the transmembrane protein 150A gene was upregulated in E7.5 placentae. Fetal weights were decreased in litters inoculated at E7.5 and E12.5 compared to controls. RNA sequencing of E7.5 thymuses indicated that 957 genes were downregulated ≥2-fold including Mal, which is associated with Toll-like receptor signaling and T cell differentiation. There were 28 upregulated genes. It is concluded that maternal influenza A virus infection impairs fetal thymic gene expression as well as restricting placental and fetal growth.
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Affiliation(s)
- Hana Van Campen
- Animal Reproduction and Biotechnology Laboratory, Department of Biomedical Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO 80523, USA; (H.V.C.); (J.V.B.); (G.J.B.); (Q.A.W.); (R.A.B.)
- Department of Microbiology, Immunology and Pathology, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO 80523, USA; (C.K.M.); (C.E.M.)
| | - Jeanette V. Bishop
- Animal Reproduction and Biotechnology Laboratory, Department of Biomedical Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO 80523, USA; (H.V.C.); (J.V.B.); (G.J.B.); (Q.A.W.); (R.A.B.)
| | - Vikki M. Abrahams
- Department of Obstetrics, Gynecology & Reproductive Sciences, Yale School of Medicine, Yale University, New Haven, CT 06510, USA;
| | - Helle Bielefeldt-Ohmann
- Australian Infectious Diseases Research Centre, The University of Queensland, St. Lucia, QLD 4072, Australia;
| | - Candace K. Mathiason
- Department of Microbiology, Immunology and Pathology, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO 80523, USA; (C.K.M.); (C.E.M.)
| | - Gerrit J. Bouma
- Animal Reproduction and Biotechnology Laboratory, Department of Biomedical Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO 80523, USA; (H.V.C.); (J.V.B.); (G.J.B.); (Q.A.W.); (R.A.B.)
| | - Quinton A. Winger
- Animal Reproduction and Biotechnology Laboratory, Department of Biomedical Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO 80523, USA; (H.V.C.); (J.V.B.); (G.J.B.); (Q.A.W.); (R.A.B.)
| | - Christie E. Mayo
- Department of Microbiology, Immunology and Pathology, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO 80523, USA; (C.K.M.); (C.E.M.)
| | - Richard A. Bowen
- Animal Reproduction and Biotechnology Laboratory, Department of Biomedical Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO 80523, USA; (H.V.C.); (J.V.B.); (G.J.B.); (Q.A.W.); (R.A.B.)
- Department of Microbiology, Immunology and Pathology, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO 80523, USA; (C.K.M.); (C.E.M.)
| | - Thomas R. Hansen
- Animal Reproduction and Biotechnology Laboratory, Department of Biomedical Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO 80523, USA; (H.V.C.); (J.V.B.); (G.J.B.); (Q.A.W.); (R.A.B.)
- Correspondence:
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6
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Tomaselli D, Lucidi A, Rotili D, Mai A. Epigenetic polypharmacology: A new frontier for epi-drug discovery. Med Res Rev 2020; 40:190-244. [PMID: 31218726 PMCID: PMC6917854 DOI: 10.1002/med.21600] [Citation(s) in RCA: 62] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Revised: 05/10/2019] [Accepted: 05/14/2019] [Indexed: 12/11/2022]
Abstract
Recently, despite the great success achieved by the so-called "magic bullets" in the treatment of different diseases through a marked and specific interaction with the target of interest, the pharmacological research is moving toward the development of "molecular network active compounds," embracing the related polypharmacology approach. This strategy was born to overcome the main limitations of the single target therapy leading to a superior therapeutic effect, a decrease of adverse reactions, and a reduction of potential mechanism(s) of drug resistance caused by robustness and redundancy of biological pathways. It has become clear that multifactorial diseases such as cancer, neurological, and inflammatory disorders, may require more complex therapeutic approaches hitting a certain biological system as a whole. Concerning epigenetics, the goal of the multi-epi-target approach consists in the development of small molecules able to simultaneously and (often) reversibly bind different specific epi-targets. To date, two dual histone deacetylase/kinase inhibitors (CUDC-101 and CUDC-907) are in an advanced stage of clinical trials. In the last years, the growing interest in polypharmacology encouraged the publication of high-quality reviews on combination therapy and hybrid molecules. Hence, to update the state-of-the-art of these therapeutic approaches avoiding redundancy, herein we focused only on multiple medication therapies and multitargeting compounds exploiting epigenetic plus nonepigenetic drugs reported in the literature in 2018. In addition, all the multi-epi-target inhibitors known in literature so far, hitting two or more epigenetic targets, have been included.
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Affiliation(s)
- Daniela Tomaselli
- Department of Chemistry and Technologies of Drugs,
“Sapienza” University of Rome, P.le A. Moro 5, 00185 Roma, Italy
| | - Alessia Lucidi
- Department of Chemistry and Technologies of Drugs,
“Sapienza” University of Rome, P.le A. Moro 5, 00185 Roma, Italy
| | - Dante Rotili
- Department of Chemistry and Technologies of Drugs,
“Sapienza” University of Rome, P.le A. Moro 5, 00185 Roma, Italy
| | - Antonello Mai
- Department of Chemistry and Technologies of Drugs,
“Sapienza” University of Rome, P.le A. Moro 5, 00185 Roma, Italy
- Pasteur Institute - Cenci Bolognetti Foundation, Viale
Regina Elena 291, 00161 Roma, Italy
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7
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The Transcription Factor Elf3 Is Essential for a Successful Mesenchymal to Epithelial Transition. Cells 2019; 8:cells8080858. [PMID: 31404945 PMCID: PMC6721682 DOI: 10.3390/cells8080858] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Revised: 07/22/2019] [Accepted: 07/27/2019] [Indexed: 12/13/2022] Open
Abstract
The epithelial to mesenchymal transition (EMT) and the mesenchymal to epithelial transition (MET) are two critical biological processes that are involved in both physiological events such as embryogenesis and development and also pathological events such as tumorigenesis. They present with dramatic changes in cellular morphology and gene expression exhibiting acute changes in E-cadherin expression. Despite the comprehensive understanding of EMT, the regulation of MET is far from being understood. To find novel regulators of MET, we hypothesized that such factors would correlate with Cdh1 expression. Bioinformatics examination of several expression profiles suggested Elf3 as a strong candidate. Depletion of Elf3 at the onset of MET severely impaired the progression to the epithelial state. This MET defect was explained, in part, by the absence of E-cadherin at the plasma membrane. Moreover, during MET, ELF3 interacts with the Grhl3 promoter and activates its expression. Our findings present novel insights into the regulation of MET and reveal ELF3 as an indispensable guardian of the epithelial state. A better understanding of MET will, eventually, lead to better management of metastatic cancers.
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Merino VF, Cho S, Nguyen N, Sadik H, Narayan A, Talbot C, Cope L, Zhou XC, Zhang Z, Győrffy B, Sukumar S. Induction of cell cycle arrest and inflammatory genes by combined treatment with epigenetic, differentiating, and chemotherapeutic agents in triple-negative breast cancer. Breast Cancer Res 2018; 20:145. [PMID: 30486871 PMCID: PMC6263070 DOI: 10.1186/s13058-018-1068-x] [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: 06/14/2018] [Accepted: 10/24/2018] [Indexed: 12/21/2022] Open
Abstract
Background A combination of entinostat, all-trans retinoic acid, and doxorubicin (EAD) induces cell death and differentiation and causes significant regression of xenografts of triple-negative breast cancer (TNBC). Methods We investigated the mechanisms underlying the antitumor effects of each component of the EAD combination therapy by high-throughput gene expression profiling of drug-treated cells. Results Microarray analysis showed that entinostat and doxorubicin (ED) altered expression of genes related to growth arrest, inflammation, and differentiation. ED downregulated MYC, E2F, and G2M cell cycle genes. Accordingly, entinostat sensitized the cells to doxorubicin-induced growth arrest at G2. ED induced interferon genes, which correlated with breast tumors containing a higher proportion of tumor-infiltrating lymphocytes. ED also increased the expression of immune checkpoint agonists and cancer testis antigens. Analysis of TNBC xenografts showed that EAD enhanced the inflammation score in nude mice. Among the genes differentially regulated between the EAD and ED groups, an all-trans retinoic acid (ATRA)-regulated gene, DHRS3, was induced in EAD-treated xenografts. DHRS3 was expressed at lower levels in human TNBC metastases compared to normal breast or primary tumors. High expression of ED-induced growth arrest and inflammatory genes was associated with better prognosis in TNBC patients. Conclusions Entinostat potentiated doxorubicin-mediated cell death and the combination induced inflammatory signatures. The ED-induced immunomodulation may improve immunotherapy. Addition of ATRA to ED may potentiate inflammation and contribute to TNBC regression. Electronic supplementary material The online version of this article (10.1186/s13058-018-1068-x) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Vanessa F Merino
- Department of Radiology, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
| | - Soonweng Cho
- Department of Neuroscience, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Nguyen Nguyen
- Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Helen Sadik
- Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Athira Narayan
- Department of Radiology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Conover Talbot
- Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Leslie Cope
- Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Xian C Zhou
- Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Zhe Zhang
- Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Balázs Győrffy
- MTA TTK Lendület Cancer Biomarker Research Group, Institute of Enzymology, Budapest, Hungary.,2nd Department of Pediatrics, Semmelweis University, Budapest, Hungary
| | - Saraswati Sukumar
- Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
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9
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Luk IY, Reehorst CM, Mariadason JM. ELF3, ELF5, EHF and SPDEF Transcription Factors in Tissue Homeostasis and Cancer. Molecules 2018; 23:molecules23092191. [PMID: 30200227 PMCID: PMC6225137 DOI: 10.3390/molecules23092191] [Citation(s) in RCA: 74] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2018] [Revised: 08/23/2018] [Accepted: 08/23/2018] [Indexed: 02/07/2023] Open
Abstract
The epithelium-specific ETS (ESE) transcription factors (ELF3, ELF5, EHF and SPDEF) are defined by their highly conserved ETS DNA binding domain and predominant epithelial-specific expression profile. ESE transcription factors maintain normal cell homeostasis and differentiation of a number of epithelial tissues, and their genetic alteration and deregulated expression has been linked to the progression of several epithelial cancers. Herein we review the normal function of the ESE transcription factors, the mechanisms by which they are dysregulated in cancers, and the current evidence for their role in cancer progression. Finally, we discuss potential therapeutic strategies for targeting or reactivating these factors as a novel means of cancer treatment.
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Affiliation(s)
- Ian Y Luk
- Olivia Newton-John Cancer Research Institute, Heidelberg, Victoria 3084, Australia.
- School of Cancer Medicine, La Trobe University, Bundoora, Victoria 3086, Australia.
| | - Camilla M Reehorst
- Olivia Newton-John Cancer Research Institute, Heidelberg, Victoria 3084, Australia.
- School of Cancer Medicine, La Trobe University, Bundoora, Victoria 3086, Australia.
| | - John M Mariadason
- Olivia Newton-John Cancer Research Institute, Heidelberg, Victoria 3084, Australia.
- School of Cancer Medicine, La Trobe University, Bundoora, Victoria 3086, Australia.
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10
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Ding J, Kong W, Mou X, Wang S. Construction of Transcriptional Regulatory Network of Alzheimer’s Disease Based on PANDA Algorithm. Interdiscip Sci 2018; 11:226-236. [DOI: 10.1007/s12539-018-0297-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2017] [Revised: 02/09/2018] [Accepted: 04/03/2018] [Indexed: 11/27/2022]
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11
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Wang P, Han W, Ma D. Virtual Sorting Has a Distinctive Advantage in Identification of Anticorrelated Genes and Further Negative Regulators of Immune Cell Subpopulations. THE JOURNAL OF IMMUNOLOGY 2017; 199:4155-4164. [PMID: 29093063 DOI: 10.4049/jimmunol.1700946] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2017] [Accepted: 10/10/2017] [Indexed: 12/20/2022]
Abstract
Immune cells are highly plastic in both gene expression and cell phenotype. We have established a method of gene expressional plasticity and virtual sorting to evaluate immune cell subpopulations and their characteristic genes in human CD4+ T cells. In this study, we continued to investigate the informatics mechanism on the effectiveness of virtual sorting. We found that virtual sorting had an overall positive correlation to the Pearson correlation in the identification of positively correlated genes. However, owing to nonlinear biological anticorrelation, virtual sorting showed a distinctive advantage for anticorrelated genes, suggesting an important role in the identification of negative regulators. In addition, based on virtual sorting results, we identified two basic gene sets among highly plastic genes, i.e., highly plastic cell cycle-associated molecules and highly plastic immune and defense response-associated molecules. Genes within each set tended to be positively connected, but genes between two sets were often anticorrelated. Further analysis revealed preferential transcription factor binding motifs existed between highly plastic cell cycle-associated molecules and highly plastic immune and defense response-associated molecules. Our results strongly suggested predetermined regulation, which was called an immune cell internal phenotype, should exist and could be mined by virtual sorting analysis. This provided efficient functional clues to study immune cell phenotypes and their regulation. Moreover, the current substantial virtual sorting results in both CD4+ T cells and B cells provide a useful resource for big-data-driven experimental studies and knowledge discoveries.
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Affiliation(s)
- Pingzhang Wang
- Department of Immunology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing 100191, China; .,Peking University Center for Human Disease Genomics, Beijing 100191, China; and .,Key Laboratory of Medical Immunology, Ministry of Health, Beijing 100191, China
| | - Wenling Han
- Department of Immunology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing 100191, China.,Peking University Center for Human Disease Genomics, Beijing 100191, China; and.,Key Laboratory of Medical Immunology, Ministry of Health, Beijing 100191, China
| | - Dalong Ma
- Department of Immunology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing 100191, China.,Peking University Center for Human Disease Genomics, Beijing 100191, China; and.,Key Laboratory of Medical Immunology, Ministry of Health, Beijing 100191, China
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12
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Nguyen HN, Noss EH, Mizoguchi F, Huppertz C, Wei KS, Watts GFM, Brenner MB. Autocrine Loop Involving IL-6 Family Member LIF, LIF Receptor, and STAT4 Drives Sustained Fibroblast Production of Inflammatory Mediators. Immunity 2017; 46:220-232. [PMID: 28228280 DOI: 10.1016/j.immuni.2017.01.004] [Citation(s) in RCA: 107] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2016] [Revised: 12/05/2016] [Accepted: 12/22/2016] [Indexed: 12/22/2022]
Abstract
Fibroblasts are major contributors to and regulators of inflammation and dominant producers of interleukin-6 (IL-6) in inflammatory diseases like rheumatoid arthritis. Yet, compared to leukocytes, the regulation of inflammatory pathways in fibroblasts is largely unknown. Here, we report that analyses of genes coordinately upregulated with IL-6 pointed to STAT4 and leukemia inhibitory factor (LIF) as potentially linked. Gene silencing revealed that STAT4 was required for IL-6 transcription. STAT4 was recruited to the IL-6 promoter after fibroblast activation, and LIF receptor (LIFR) and STAT4 formed a molecular complex that, together with JAK1 and TYK2 kinases, controlled STAT4 activation. Importantly, a positive feedback loop involving autocrine LIF, LIFR, and STAT4 drove sustained IL-6 transcription. Besides IL-6, this autorine loop also drove the production of other key inflammatory factors including IL-8, granulocyte-colony stimulating factor (G-CSF), IL-33, IL-11, IL-1α, and IL-1β. These findings define the transcriptional regulation of fibroblast-mediated inflammation as distinct from leukocytes.
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Affiliation(s)
- Hung N Nguyen
- Division of Rheumatology, Immunology, and Allergy, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02115, USA
| | - Erika H Noss
- Division of Rheumatology, Immunology, and Allergy, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02115, USA
| | - Fumitaka Mizoguchi
- Division of Rheumatology, Immunology, and Allergy, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02115, USA; Department of Rheumatology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8519, Japan
| | - Christine Huppertz
- Novartis Institutes for Biomedical Research, Novartis Pharma AG, 4002 Basel, Switzerland
| | - Kevin S Wei
- Division of Rheumatology, Immunology, and Allergy, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02115, USA
| | - Gerald F M Watts
- Division of Rheumatology, Immunology, and Allergy, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02115, USA
| | - Michael B Brenner
- Division of Rheumatology, Immunology, and Allergy, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02115, USA.
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13
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Liu M, Gao W, van Velkinburgh JC, Wu Y, Ni B, Tian Y. Role of Ets Proteins in Development, Differentiation, and Function of T-Cell Subsets. Med Res Rev 2015; 36:193-220. [PMID: 26301869 DOI: 10.1002/med.21361] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2014] [Revised: 07/12/2015] [Accepted: 07/23/2015] [Indexed: 12/18/2022]
Abstract
Through positive selection, double-positive cells in the thymus differentiate into CD4(+) or CD8(+) T single-positive cells that subsequently develop into different types of effective T cells, such as T-helper and cytotoxic T lymphocyte cells, that play distinctive roles in the immune system. Development, differentiation, and function of thymocytes and CD4(+) and CD8(+) T cells are controlled by a multitude of secreted and intracellular factors, ranging from cytokine signaling modules to transcription factors and epigenetic modifiers. Members of the E26 transformation specific (Ets) family of transcription factors, in particular, are potent regulators of these CD4(+) or CD8(+) T-cell processes. In this review, we summarize and discuss the functions and underlying mechanisms of the Ets family members that have been characterized as involved in these processes. Ongoing research of these factors is expected to identify practical applications for the Ets family members as novel therapeutic targets for inflammation-related diseases.
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Affiliation(s)
- Mian Liu
- Institute of Immunology, PLA, Third Military Medical University, Chongqing, 400038, P.R. China.,Battalion 10 of Cadet Brigade, Third Military Medical University, Chongqing, 400038, P.R. China
| | - Weiwu Gao
- Institute of Immunology, PLA, Third Military Medical University, Chongqing, 400038, P.R. China
| | | | - Yuzhang Wu
- Institute of Immunology, PLA, Third Military Medical University, Chongqing, 400038, P.R. China
| | - Bing Ni
- Institute of Immunology, PLA, Third Military Medical University, Chongqing, 400038, P.R. China
| | - Yi Tian
- Institute of Immunology, PLA, Third Military Medical University, Chongqing, 400038, P.R. China
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14
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Lin YL, Chen SH, Wang JY. Critical role of IL-6 in dendritic cell-induced allergic inflammation of asthma. J Mol Med (Berl) 2015; 94:51-9. [PMID: 26232935 DOI: 10.1007/s00109-015-1325-8] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2015] [Revised: 07/09/2015] [Accepted: 07/17/2015] [Indexed: 01/21/2023]
Abstract
UNLABELLED Interleukin (IL)-6 plays important roles in autoimmunity and inflammation and is essential for T helper (Th) 2 and Th17 differentiation. However, whether it is involved in the development and function of dendritic cells (DCs) during allergen-induced airway inflammation and airway hyper-reactivity (AHR) remains undefined. In this study, Dermatophagoides pteronyssinus (Der p)-induced airway inflammation and AHR were studied in IL-6 knockout (KO) mice. Der p-loaded bone marrow-derived DCs (BMDCs) from IL-6 KO mice were used to assaying their ability to induce airway inflammation in naïve wild-type mice. Our results showed that IL-6 KO mice showed reduced AHR, significant decreases in inflammatory cell recruitment and Th2 and Th17 cytokine production in the airways, and lowered Der p-specific immunoglobulin G1 after Der p exposure. Further exploration of BMDCs from IL-6 KO mice revealed decreased activity of phagocytosis and reduced expression of MHC class II and CD86 after Der p stimulation. Adoptive transfer of Der p-loaded BMDCs from IL-6 KO mice also showed a functional defect in their inability to induce Th2 and Th17 immune responses and trigger airway inflammation and AHR in recipient mice. Finally, in allergic asthmatics, DCs that differentiated from monocytes treated with anti-IL-6 receptor antibody (tocilizumab) had poor capacity for eliciting Th2 polarization as compared to DCs generated from monocytes without antibody treatment. In conclusion, IL-6 signaling in DCs is essential for their uptake of allergens, maturation, and initiation of Th2/Th17-mediated airway inflammation and AHR in asthma, thus providing a new potential target for treating allergic asthma. KEY MESSAGES IL-6 signaling is important for DCs to take up allergens and to initiate Th2/Th17-mediated airway inflammation. DCs from allergic asthmatics treated with anti-IL-6 receptor antibody had poor capacity for eliciting Th2 polarization. Anti-IL-6 treatment may provide a new potential target for treating allergic asthma.
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Affiliation(s)
- Yen-Lin Lin
- Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Shun-Hua Chen
- Institute of Microbiology and Immunology, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Jiu-Yao Wang
- Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, Tainan, Taiwan. .,Allergy and Clinical Immunology Research (ACIR) Center, College of Medicine, National Cheng Kung University, Tainan, Taiwan. .,China Medical University Children Hospital, Taichung, Taiwan. .,Department of Pediatrics, College of Medicine, National Cheng Kung University, Tainan, 70101, Taiwan.
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15
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Lee CM, Gupta S, Parodo J, Wu J, Marshall JC, Hu J. The uncovering of ESE-1 in human neutrophils: implication of its role in neutrophil function and survival. Genes Immun 2015; 16:356-61. [PMID: 25906252 DOI: 10.1038/gene.2015.10] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2014] [Revised: 02/20/2015] [Accepted: 03/04/2015] [Indexed: 02/06/2023]
Abstract
Epithelium-specific Ets transcription factor 1 (ESE-1) is a member of the E26 transformation-specific family of transcription factors that has an epithelial-restricted constitutive expression but is induced by inflammatory stimuli in non-epithelial cells. Here we report that ESE-1 is constitutively expressed in human, but not in murine, neutrophils and that ESE-1 is modestly upregulated in septic patient neutrophils. In normal human neutrophils, ESE-1 was detected at both RNA and protein levels but was found to be an unstable nuclear protein ex vivo. ESE-1 transcription was also induced during all-trans retinoic acid-mediated HL-60 differentiation, a human promyelocytic cell line often used as an in vitro model of human neutrophils. Elf3-/- mice had normal neutrophils but a reduced number of circulating B-lymphocytes. These findings indicate a potential role of ESE-1 in regulating human neutrophil differentiation and function, and that it has different roles in the immune system of different species.
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Affiliation(s)
- C M Lee
- 1] SickKids Research Institute, Program in Physiology and Experimental Medicine, Peter Gilgan Centre for Research and Learning, SickKids Hospital, Toronto, Ontario, Canada [2] Laboratory Medicine & Pathobiology, University of Toronto, Toronto, Ontario, Canada [3] The Keenan Research Centre, Li Ka Shing Knowledge Institute, St Michael's Hospital, Toronto, Ontario, Canada
| | - S Gupta
- 1] The Keenan Research Centre, Li Ka Shing Knowledge Institute, St Michael's Hospital, Toronto, Ontario, Canada [2] Human Biology Department, University of Toronto, Toronto, Ontario, Canada
| | - J Parodo
- 1] The Keenan Research Centre, Li Ka Shing Knowledge Institute, St Michael's Hospital, Toronto, Ontario, Canada [2] Department of Surgery, St Michael's Hospital, University of Toronto, Toronto, Ontario, Canada
| | - J Wu
- SickKids Research Institute, Program in Physiology and Experimental Medicine, Peter Gilgan Centre for Research and Learning, SickKids Hospital, Toronto, Ontario, Canada
| | - J C Marshall
- 1] The Keenan Research Centre, Li Ka Shing Knowledge Institute, St Michael's Hospital, Toronto, Ontario, Canada [2] Department of Surgery, St Michael's Hospital, University of Toronto, Toronto, Ontario, Canada
| | - J Hu
- 1] SickKids Research Institute, Program in Physiology and Experimental Medicine, Peter Gilgan Centre for Research and Learning, SickKids Hospital, Toronto, Ontario, Canada [2] Laboratory Medicine & Pathobiology, University of Toronto, Toronto, Ontario, Canada
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16
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McIntyre BAS, Kushwah R, Mechael R, Shapovalova Z, Alev C, Bhatia M. Innate immune response of human pluripotent stem cell-derived airway epithelium. Innate Immun 2014; 21:504-11. [PMID: 25261966 DOI: 10.1177/1753425914551074] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2014] [Accepted: 08/20/2014] [Indexed: 01/08/2023] Open
Abstract
The acquisition of innate immune response is requisite to having bona fide differentiation of airway epithelium. Procedures developed to differentiate lung airway from human pluripotent stem cells (hPSCs) have demonstrated anecdotal evidence for innate immune response, but an in-depth exploration of response levels is lacking. Herein, using an established method of airway epithelial generation from hPSCs, we show that hPSC-derived epithelial cells are able to up-regulate expression of TNFα, IL8 and IL1β in response to challenge with bacterial endotoxin LPS, but lack response from genes associated with innate immune response in other cell types. Further, stimulation of cells with TNF-α resulted in auto-induction of TNFα transcript, as well as cytokine responses of IL8 and IL1β. The demonstration of innate immune induction in hPSC-derived airway epithelia gives further strength to the functionality of in vitro protocols aimed at generating differentiated airway cells that can potentially be used in a translational setting. Finally, we propose that innate immune challenge of airway epithelium from human pluripotent stem cell sources be used as a robust validation of functional in vitro differentiation.
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Affiliation(s)
- Brendan A S McIntyre
- McMaster Stem Cell and Cancer Research Institute, Michael G. DeGroote School of Medicine, Hamilton, ON, Canada
| | - Rahul Kushwah
- McMaster Stem Cell and Cancer Research Institute, Michael G. DeGroote School of Medicine, Hamilton, ON, Canada
| | - Rami Mechael
- McMaster Stem Cell and Cancer Research Institute, Michael G. DeGroote School of Medicine, Hamilton, ON, Canada Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, ON, Canada
| | - Zoya Shapovalova
- McMaster Stem Cell and Cancer Research Institute, Michael G. DeGroote School of Medicine, Hamilton, ON, Canada
| | - Cantas Alev
- Laboratory for Early Embryogenesis, RIKEN Center for Developmental Biology (CDB), Kobe, Hyogo, Japan
| | - Mickie Bhatia
- McMaster Stem Cell and Cancer Research Institute, Michael G. DeGroote School of Medicine, Hamilton, ON, Canada
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17
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Elf3 drives β-catenin transactivation and associates with poor prognosis in colorectal cancer. Cell Death Dis 2014; 5:e1263. [PMID: 24874735 PMCID: PMC4047871 DOI: 10.1038/cddis.2014.206] [Citation(s) in RCA: 63] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2014] [Revised: 03/30/2014] [Accepted: 04/03/2014] [Indexed: 01/14/2023]
Abstract
Aberrant regulation of the Wnt/β-catenin pathway plays important roles in colorectal carcinogenesis, with over 90% of cases of sporadic colon cancer featuring β-catenin accumulation. While ubiquitination-mediated degradation is widely accepted as a major route for β-catenin protein turnover, little is known about the regulation of β-catenin in transcriptional level. Here we show that Elf3, a member of the E-twenty-six family of transcription factors, drives β-catenin transactivation and associates with poor survival of colorectal cancer (CRC) patients. We first found recurrent amplification and upregulation of Elf3 in CRC tissues, and further Gene Set Enrichment Analysis identified significant association between Elf3 expression and activity of WNT/β-catenin pathway. Chromatin immunoprecipitation and electrophoretic mobility shift assay consistently revealed that Elf3 binds to and transactivates β-catenin promoter. Ectopic expression of Elf3 induces accumulation of β-catenin in both nucleus and cytoplasm, causing subsequent upregulation of several effector genes including c-Myc, VEGF, CCND1, MMP-7 and c-Jun. Suppressing Elf3 in CRC cells attenuates β-catenin signaling and decreases cell proliferation, migration and survival. Targeting Elf3 in xenograft tumors suppressed tumor progression in vivo. Taken together, our data identify Elf3 as a pivotal driver for β-catenin signaling in CRC, and highlight potential prognostic and therapeutic significance of Elf3 in CRC.
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18
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Lopes M, Kutlu B, Miani M, Bang-Berthelsen CH, Størling J, Pociot F, Goodman N, Hood L, Welsh N, Bontempi G, Eizirik DL. Temporal profiling of cytokine-induced genes in pancreatic β-cells by meta-analysis and network inference. Genomics 2014; 103:264-75. [DOI: 10.1016/j.ygeno.2013.12.007] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2013] [Revised: 12/17/2013] [Accepted: 12/18/2013] [Indexed: 01/12/2023]
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19
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Sprater F, Hovden AO, Appel S. Expression of ESE-3 isoforms in immunogenic and tolerogenic human monocyte-derived dendritic cells. PLoS One 2012. [PMID: 23185370 PMCID: PMC3501485 DOI: 10.1371/journal.pone.0049577] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Dendritic cells (DC) are the only hematopoietic cells expressing the epithelial specific Ets transcription factor ESE-3. Here we analyzed presence and quantity of isoforms ESE-3a, ESE-3b and ESE-3j in various immunogenic and tolerogenic human monocyte-derived DC (moDC) and blood DC populations using quantitative real time PCR and immunoblot analyses. ESE-3a and ESE-3b were detectable in all moDC populations with ESE-3b being the main transcript. ESE-3b expression was upregulated in immunogenic moDC and downregulated in tolerogenic moDC compared to immature moDC. ESE-3a had similar transcript levels in immature and immunogenic moDC and had very low levels in tolerogenic moDC. In blood DC populations only splice variant ESE-3b was detectable. ESE-3j was not detectable in any of the DC populations. These findings suggest that ESE-3b is the functionally most important ESE-3 isoform in DC.
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Affiliation(s)
- Florian Sprater
- Broegelmann Research Laboratory, The Gade Institute, University of Bergen, Bergen, Norway
| | - Arnt-Ove Hovden
- Broegelmann Research Laboratory, The Gade Institute, University of Bergen, Bergen, Norway
| | - Silke Appel
- Broegelmann Research Laboratory, The Gade Institute, University of Bergen, Bergen, Norway
- * E-mail:
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20
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Multiple roles of the epithelium-specific ETS transcription factor, ESE-1, in development and disease. J Transl Med 2012; 92:320-30. [PMID: 22157719 DOI: 10.1038/labinvest.2011.186] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
The E26 transformation-specific (ETS) family of transcription factors comprises of 27 and 26 members in humans and mice, respectively, which are known to regulate many different biological processes, including cell proliferation, cell differentiation, embryonic development, neoplasia, hematopoiesis, angiogenesis, and inflammation. The epithelium-specific ETS transcription factor-1 (ESE-1) is a physiologically important ETS transcription factor, which has been shown to play a role in the pathogenesis of various diseases, and was originally characterized as having an epithelial-restricted expression pattern, thus placing it within the epithelium-specific ETS subfamily. Despite a large body of published work on ETS biology, much remains to be learned about the precise functions of ESE-1 and other epithelium-specific ETS factors in regulating diverse disease processes. Clues as to the specific function of ESE-1 in the setting of various diseases can be obtained from studies aimed at examining the expression of putative target genes regulated by ESE-1. Thus, this review will focus primarily on the various roles of ESE-1 in different pathophysiological processes, including regulation of epithelial cell differentiation during both intestinal development and lung regeneration; regulation of dendritic cell-driven T-cell differentiation during allergic airway inflammation; regulation of mammary gland development and breast cancer; and regulation of the effects of inflammatory stimuli within the setting of synovial joint and vascular inflammation. Understanding the exact mechanisms by which ESE-1 regulates these processes can have important implications for the treatment of a wide range of diseases.
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