1
|
Maslenkina K, Mikhaleva L, Naumenko M, Vandysheva R, Gushchin M, Atiakshin D, Buchwalow I, Tiemann M. Signaling Pathways in the Pathogenesis of Barrett's Esophagus and Esophageal Adenocarcinoma. Int J Mol Sci 2023; 24:ijms24119304. [PMID: 37298253 DOI: 10.3390/ijms24119304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 05/23/2023] [Accepted: 05/24/2023] [Indexed: 06/12/2023] Open
Abstract
Barrett's esophagus (BE) is a premalignant lesion that can develop into esophageal adenocarcinoma (EAC). The development of Barrett's esophagus is caused by biliary reflux, which causes extensive mutagenesis in the stem cells of the epithelium in the distal esophagus and gastro-esophageal junction. Other possible cellular origins of BE include the stem cells of the mucosal esophageal glands and their ducts, the stem cells of the stomach, residual embryonic cells and circulating bone marrow stem cells. The classical concept of healing a caustic lesion has been replaced by the concept of a cytokine storm, which forms an inflammatory microenvironment eliciting a phenotypic shift toward intestinal metaplasia of the distal esophagus. This review describes the roles of the NOTCH, hedgehog, NF-κB and IL6/STAT3 molecular pathways in the pathogenesis of BE and EAC.
Collapse
Affiliation(s)
- Ksenia Maslenkina
- A.P. Avtsyn Research Institute of Human Morphology, Petrovsky National Research Center of Surgery, 119991 Moscow, Russia
| | - Liudmila Mikhaleva
- A.P. Avtsyn Research Institute of Human Morphology, Petrovsky National Research Center of Surgery, 119991 Moscow, Russia
| | - Maxim Naumenko
- A.P. Avtsyn Research Institute of Human Morphology, Petrovsky National Research Center of Surgery, 119991 Moscow, Russia
| | - Rositsa Vandysheva
- A.P. Avtsyn Research Institute of Human Morphology, Petrovsky National Research Center of Surgery, 119991 Moscow, Russia
| | - Michail Gushchin
- A.P. Avtsyn Research Institute of Human Morphology, Petrovsky National Research Center of Surgery, 119991 Moscow, Russia
| | - Dmitri Atiakshin
- Research and Educational Resource Centre for Immunophenotyping, Digital Spatial Profiling and Ultrastructural Analysis Innovative Technologies, Peoples' Friendship University of Russia Named after Patrice Lumumba, 117198 Moscow, Russia
| | - Igor Buchwalow
- Research and Educational Resource Centre for Immunophenotyping, Digital Spatial Profiling and Ultrastructural Analysis Innovative Technologies, Peoples' Friendship University of Russia Named after Patrice Lumumba, 117198 Moscow, Russia
- Institute for Hematopathology, Fangdieckstr. 75a, 22547 Hamburg, Germany
| | - Markus Tiemann
- Institute for Hematopathology, Fangdieckstr. 75a, 22547 Hamburg, Germany
| |
Collapse
|
2
|
Li HS, Chu CL. Intestinal metaplasia in progression of Barrett's esophagus to esophageal adenocarcinoma. Shijie Huaren Xiaohua Zazhi 2023; 31:41-47. [DOI: 10.11569/wcjd.v31.i2.41] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
The incidence of esophageal adenocarcinoma (EAC) has been increasing year by year. The prognosis of EAC is poor, and the 5-year survival rate is less than 20%. Barrett's esophagus (BE) is the only known precancerous lesion of EAC. BE with intestinal metaplasia (IM) has a higher risk of progressing to EAC. Exploring the mechanism of IM and finding targeted therapeutic targets for BE has become an important measure for tumor prevention. Bile acid reflux is considered an important factor in the occurrence of IM and promotes the progression of BE to EAC. However, the molecular regulatory mechanism of bile reflux induced IM and carcinogenesis remains unclear. This article reviews the environment, significance, and cell origin theory of IM, toxic effects of bile reflux, and molecular changes of IM progression to tumor, aiming to improve clinicians' understanding of IM in BE and provide evidence for early intervention of BE and prevention and treatment of EAC.
Collapse
Affiliation(s)
- Hai-Su Li
- Jinan Central Hospital, Jinan Key Translational Gastroenterology Laboratory, Jinan Digestive Diseases Clinical Research Center, Jinan 250013, Shandong Province, China
| | - Chuan-Lian Chu
- Jinan Central Hospital, Jinan Key Translational Gastroenterology Laboratory, Jinan Digestive Diseases Clinical Research Center, Jinan 250013, Shandong Province, China
| |
Collapse
|
3
|
Zyla RE, Kalimuthu SN. Barrett’s Esophagus and Esophageal Adenocarcinoma: A Histopathological Perspective. Thorac Surg Clin 2022; 32:413-424. [DOI: 10.1016/j.thorsurg.2022.06.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
|
4
|
Abstract
Barrett oesophagus, in which a metaplastic columnar mucosa that can predispose individuals to cancer development lines a portion of the distal oesophagus, is the only known precursor of oesophageal adenocarcinoma, the incidence of which has increased profoundly over the past several decades. Most evidence suggests that Barrett oesophagus develops from progenitor cells at the oesophagogastric junction that proliferate and undergo epithelial-mesenchymal transition as part of a wound-healing process that replaces oesophageal squamous epithelium damaged by gastroesophageal reflux disease (GERD). GERD also seems to induce reprogramming of key transcription factors in the progenitor cells, resulting in the development of the specialized intestinal metaplasia that is characteristic of Barrett oesophagus, probably through an intermediate step of metaplasia to cardiac mucosa. Genome-wide association studies suggest that patients with GERD who develop Barrett oesophagus might have an inherited predisposition to oesophageal metaplasia and that there is a shared genetic susceptibility to Barrett oesophagus and to several of its risk factors (such as GERD, obesity and cigarette smoking). In this Review, we discuss the mechanisms, pathophysiology, genetic predisposition and cells of origin of Barrett oesophagus, and opine on the clinical implications and future research directions.
Collapse
Affiliation(s)
- Rhonda F Souza
- Division of Gastroenterology, Center for Oesophageal Diseases, Baylor University Medical Center, Dallas, TX, USA. .,Center for Oesophageal Research, Baylor Scott & White Research Institute, Dallas, TX, USA.
| | - Stuart J Spechler
- Division of Gastroenterology, Center for Oesophageal Diseases, Baylor University Medical Center, Dallas, TX, USA.,Center for Oesophageal Research, Baylor Scott & White Research Institute, Dallas, TX, USA
| |
Collapse
|
5
|
Sugano K, Spechler SJ, El-Omar EM, McColl KEL, Takubo K, Gotoda T, Fujishiro M, Iijima K, Inoue H, Kawai T, Kinoshita Y, Miwa H, Mukaisho KI, Murakami K, Seto Y, Tajiri H, Bhatia S, Choi MG, Fitzgerald RC, Fock KM, Goh KL, Ho KY, Mahachai V, O'Donovan M, Odze R, Peek R, Rugge M, Sharma P, Sollano JD, Vieth M, Wu J, Wu MS, Zou D, Kaminishi M, Malfertheiner P. Kyoto international consensus report on anatomy, pathophysiology and clinical significance of the gastro-oesophageal junction. Gut 2022; 71:1488-1514. [PMID: 35725291 PMCID: PMC9279854 DOI: 10.1136/gutjnl-2022-327281] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Accepted: 05/03/2022] [Indexed: 02/07/2023]
Abstract
OBJECTIVE An international meeting was organised to develop consensus on (1) the landmarks to define the gastro-oesophageal junction (GOJ), (2) the occurrence and pathophysiological significance of the cardiac gland, (3) the definition of the gastro-oesophageal junctional zone (GOJZ) and (4) the causes of inflammation, metaplasia and neoplasia occurring in the GOJZ. DESIGN Clinical questions relevant to the afore-mentioned major issues were drafted for which expert panels formulated relevant statements and textural explanations.A Delphi method using an anonymous system was employed to develop the consensus, the level of which was predefined as ≥80% of agreement. Two rounds of voting and amendments were completed before the meeting at which clinical questions and consensus were finalised. RESULTS Twenty eight clinical questions and statements were finalised after extensive amendments. Critical consensus was achieved: (1) definition for the GOJ, (2) definition of the GOJZ spanning 1 cm proximal and distal to the GOJ as defined by the end of palisade vessels was accepted based on the anatomical distribution of cardiac type gland, (3) chemical and bacterial (Helicobacter pylori) factors as the primary causes of inflammation, metaplasia and neoplasia occurring in the GOJZ, (4) a new definition of Barrett's oesophagus (BO). CONCLUSIONS This international consensus on the new definitions of BO, GOJ and the GOJZ will be instrumental in future studies aiming to resolve many issues on this important anatomic area and hopefully will lead to better classification and management of the diseases surrounding the GOJ.
Collapse
Affiliation(s)
- Kentaro Sugano
- Division of Gastroenterology, Department of Medicine, Jichi Medical University, Shimotsuke, Japan
| | - Stuart Jon Spechler
- Division of Gastroenterology, Center for Esophageal Diseases, Baylor University Medical Center, Dallas, Texas, USA
| | - Emad M El-Omar
- Microbiome Research Centre, St George & Sutherland Clinical Campuses, School of Clinical Medicine, Faculty of Medicine & Health, Sydney, New South Wales, Australia
| | - Kenneth E L McColl
- Division of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, UK
| | - Kaiyo Takubo
- Research Team for Geriatric Pathology, Tokyo Metropolitan Institute of Gerontology, Tokyo, Japan
| | - Takuji Gotoda
- Division of Gastroenterology and Hepatology, Department of Medicine, Nihon University School of Medicine, Tokyo, Japan
| | - Mitsuhiro Fujishiro
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Katsunori Iijima
- Department of Gastroenterology, Akita University Graduate School of Medicine, Akita, Japan
| | - Haruhiro Inoue
- Digestive Disease Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Takashi Kawai
- Department of Gastroenterological Endoscopy, Tokyo Medical University, Tokyo, Japan
| | | | - Hiroto Miwa
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Hyogo College of Medicine, Kobe, Japan
| | - Ken-ichi Mukaisho
- Education Center for Medicine and Nursing, Shiga University of Medical Science, Otsu, Japan
| | - Kazunari Murakami
- Department of Gastroenterology, Oita University Faculty of Medicine, Yuhu, Japan
| | - Yasuyuki Seto
- Department of Gastrointestinal Surgery, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Hisao Tajiri
- Jikei University School of Medicine, Minato-ku, Tokyo, Japan
| | | | - Myung-Gyu Choi
- Gastroenterology, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, The Republic of Korea
| | - Rebecca C Fitzgerald
- Medical Research Council Cancer Unit, Hutchison/Medical Research Council Research Centre, University of Cambridge, Cambridge, UK
| | - Kwong Ming Fock
- Department of Gastroenterology and Hepatology, Duke NUS School of Medicine, National University of Singapore, Singapore
| | | | - Khek Yu Ho
- Department of Medicine, National University of Singapore, Singapore
| | - Varocha Mahachai
- Center of Excellence in Digestive Diseases, Thammasat University and Science Resarch and Innovation, Bangkok, Thailand
| | - Maria O'Donovan
- Department of Histopathology, Cambridge University Hospital NHS Trust UK, Cambridge, UK
| | - Robert Odze
- Department of Pathology, Tuft University School of Medicine, Boston, Massachusetts, USA
| | - Richard Peek
- Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Massimo Rugge
- Department of Medicine DIMED, Surgical Pathology and Cytopathology Unit, University of Padova, Padova, Italy
| | - Prateek Sharma
- Department of Gastroenterology and Hepatology, University of Kansas School of Medicine, Kansas City, Kansas, USA
| | - Jose D Sollano
- Department of Medicine, University of Santo Tomas, Manila, Philippines
| | - Michael Vieth
- Institute of Pathology, Klinikum Bayreuth, Friedrich-Alexander University Erlangen, Nurenberg, Germany
| | - Justin Wu
- Institute of Digestive Disease, The Chinese University of Hong Kong, Hong Kong, China
| | - Ming-Shiang Wu
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Duowu Zou
- Department of Gastroenterology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | | | - Peter Malfertheiner
- Medizinixhe Klinik und Poliklinik II, Ludwig Maximillian University Klinikum, Munich, Germany,Klinik und Poliklinik für Radiologie, Ludwig Maximillian University Klinikum, Munich, Germany
| |
Collapse
|
6
|
Sullivan R, Mulki R, Peter S. The role of ablation in the treatment of dysplastic Barrett's esophagus. Ther Adv Gastrointest Endosc 2021; 14:26317745211049967. [PMID: 34708203 PMCID: PMC8544766 DOI: 10.1177/26317745211049967] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Accepted: 09/07/2021] [Indexed: 12/15/2022] Open
Abstract
Endoscopic eradication therapy for Barrett's esophagus has been established as an effective management strategy for patients with Barrett's esophagus with dysplasia and early esophageal cancer. Among the endoscopic therapies, ablation techniques such as radiofrequency ablation and cryoablation are effective primary treatment interventions with acceptable low complication rates forming the spectrum of a multimodal approach. Appropriate selection of patients, high-definition endoscopic evaluation, and dedicated histological assessment are important cornerstones to help navigate to the best effective treatment method. Carefully structured surveillance programs and preventive measures will be needed to provide long-term durability for maintaining complete remission.
Collapse
Affiliation(s)
- Rebecca Sullivan
- Division of Gastroenterology and Hepatology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Ramzi Mulki
- Division of Gastroenterology and Hepatology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Shajan Peter
- Associate Professor, Basil Hirschowitz Endoscopic Centre of Endoscopic Excellence, Division of Gastroenterology and Hepatology, University of Alabama at Birmingham, 6th Floor Jefferson Tower, 625 19th Street South, Birmingham, AL 35249, USA
| |
Collapse
|
7
|
Abstract
The esophagus and stomach, joined by a unique transitional zone, contain actively dividing epithelial stem cells required for organ homeostasis. Upon prolonged inflammation, epithelial cells in both organs can undergo a cell fate switch leading to intestinal metaplasia, predisposing to malignancy. Here we discuss the biology of gastroesophageal stem cells and their role as cells of origin in cancer. We summarize the interactions between the stromal niche and gastroesophageal stem cells in metaplasia and early expansion of mutated stem-cell-derived clones during carcinogenesis. Finally, we review new approaches under development to better study gastroesophageal stem cells and advance the field.
Collapse
Affiliation(s)
- Yoku Hayakawa
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, 7-3-1, Hongo, Bunkyoku, Tokyo 113-8655, Japan
| | - Hiroshi Nakagawa
- Division of Digestive and Liver Diseases, Department of Medicine, Columbia University, College of Physicians and Surgeons, 1130 St. Nicholas Avenue, New York, NY 10032, USA; Herbert Irving Comprehensive Cancer Center, 1130 St. Nicholas Avenue, New York, NY 10032, USA
| | - Anil K Rustgi
- Division of Digestive and Liver Diseases, Department of Medicine, Columbia University, College of Physicians and Surgeons, 1130 St. Nicholas Avenue, New York, NY 10032, USA; Herbert Irving Comprehensive Cancer Center, 1130 St. Nicholas Avenue, New York, NY 10032, USA
| | - Jianwen Que
- Division of Digestive and Liver Diseases, Department of Medicine, Columbia University, College of Physicians and Surgeons, 1130 St. Nicholas Avenue, New York, NY 10032, USA; Herbert Irving Comprehensive Cancer Center, 1130 St. Nicholas Avenue, New York, NY 10032, USA; Columbia Center for Human Development, Department of Medicine, Columbia University, College of Physicians and Surgeons, 1130 St. Nicholas Avenue, New York, NY 10032, USA.
| | - Timothy C Wang
- Division of Digestive and Liver Diseases, Department of Medicine, Columbia University, College of Physicians and Surgeons, 1130 St. Nicholas Avenue, New York, NY 10032, USA; Herbert Irving Comprehensive Cancer Center, 1130 St. Nicholas Avenue, New York, NY 10032, USA.
| |
Collapse
|
8
|
De A, Zhou J, Liu P, Huang M, Gunewardena S, Mathur SC, Christenson LK, Sharma M, Zhang Q, Bansal A. Forkhead box F1 induces columnar phenotype and epithelial-to-mesenchymal transition in esophageal squamous cells to initiate Barrett's like metaplasia. J Transl Med 2021; 101:745-759. [PMID: 33495575 PMCID: PMC9296259 DOI: 10.1038/s41374-021-00534-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Revised: 12/22/2020] [Accepted: 12/28/2020] [Indexed: 11/08/2022] Open
Abstract
Multiple genome-wide association studies (GWAS) have linked Forkhead Box F1 (FOXF1) to Barrett's esophagus (BE). Understanding whether FOXF1 is involved in initiation of Barrett's metaplasia could allow FOXF1 to be used for risk stratification and for therapy. Two-dimensional cell cultures and three-dimensional organoid cultures and well-annotated human biopsies were used to determine the role of FOXF1 in BE pathogenesis. Multiple established esophageal squamous and BE cell lines were tested in gain- and loss-of-function studies. Initiation of a BE-like metaplastic change was evaluated by measuring characteristic cytokeratins and global gene expression profiling and by culturing organoids. Epithelial-mesenchymal transition (EMT) was evaluated by immunostaining for E-cadherin, vimentin and Snail, and by cell motility assay. Columnar esophageal epithelium of BE patients exhibited higher expression of FOXF1 compared to normal squamous esophageal epithelium of GERD patients (P < 0.001). Acidic bile salts induced nuclear FOXF1 in esophageal squamous cells. FOXF1 overexpression in normal esophageal squamous cells: (a) increased columnar cytokeratins and decreased squamous cytokeratins, (b) converted squamous organoids to glandular organoids, and (c) switched global gene profiles to resemble that of human BE epithelium (P = 2.1685e - 06 for upregulated genes and P = 8.3378e - 09 for downregulated genes). FOXF1 inhibition in BE cell lines led to loss of BE differentiation markers, CK7, and mucin 2. Also, FOXF1 induced EMT and promoted cell motility in normal esophageal squamous epithelial cells. FOXF1-induced genes mapped to pathways such as Cancer, Cellular Assembly and Organization, DNA Replication, Recombination, and Repair. In conclusion, FOXF1 promotes a BE-like columnar phenotype and cell motility in esophageal squamous epithelial cells, which may have a critical role in BE development. FOXF1 should be studied further as a biomarker for BE and as a target for BE treatment.
Collapse
Affiliation(s)
- Alok De
- Midwest Veterans' Biomedical Research Foundation (MVBRF), Kansas City, MO, USA
- Kansas City VA Medical Center, Kansas City, MO, USA
| | - Jianping Zhou
- Midwest Veterans' Biomedical Research Foundation (MVBRF), Kansas City, MO, USA
- Kansas City VA Medical Center, Kansas City, MO, USA
| | - Pi Liu
- Department of Medicine, Center for Esophageal Diseases, Baylor University Medical Center and Center for Esophageal Research, Baylor Scott & White Research Institute, Dallas, TX, 75246, USA
| | - Manling Huang
- Department of Medicine, Center for Esophageal Diseases, Baylor University Medical Center and Center for Esophageal Research, Baylor Scott & White Research Institute, Dallas, TX, 75246, USA
| | - Sumedha Gunewardena
- Department of Molecular and Integrative Physiology, The University of Kansas Medical Center, Kansas City, KS, USA
| | - Sharad C Mathur
- Department of Pathology and Laboratory Medicine, Veterans Affairs Medical Center, Kansas City, MO, USA
- The University of Kansas Medical Center, Kansas City, KS, USA
| | - Lane K Christenson
- Department of Molecular and Integrative Physiology, The University of Kansas Medical Center, Kansas City, KS, USA
| | - Mukut Sharma
- Midwest Veterans' Biomedical Research Foundation (MVBRF), Kansas City, MO, USA
- Research and Development Service, Kansas City Veterans Affairs Medical Center, Kansas City, MO, USA
| | - Qiuyang Zhang
- Department of Medicine, Center for Esophageal Diseases, Baylor University Medical Center and Center for Esophageal Research, Baylor Scott & White Research Institute, Dallas, TX, 75246, USA.
| | - Ajay Bansal
- Division of Gastroenterology and Hepatology, The University of Kansas Medical Center, Kansas City, KS, USA.
- Division of Gastroenterology and Hepatology, Veterans Affairs Medical Center, Kansas City, MO, USA.
- The University of Kansas Cancer Center, Kansas City, KS, USA.
| |
Collapse
|
9
|
Stavniichuk R, DeLaForest A, Thompson CA, Miller J, Souza RF, Battle MA. GATA4 blocks squamous epithelial cell gene expression in human esophageal squamous cells. Sci Rep 2021; 11:3206. [PMID: 33547361 PMCID: PMC7864948 DOI: 10.1038/s41598-021-82557-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Accepted: 01/12/2021] [Indexed: 12/21/2022] Open
Abstract
GATA4 promotes columnar epithelial cell fate during gastric development. When ectopically expressed in the developing mouse forestomach, the tissue emerges as columnar-like rather than stratified squamous with gene expression changes that parallel those observed in the pre-malignant squamous to columnar metaplasia known as Barrett's esophagus (BE). GATA4 mRNA up-regulation and gene amplification occur in BE and its associated cancer, esophageal adenocarcinoma (EAC), and GATA4 gene amplification correlates with poor patient outcomes. Here, we explored the effect of ectopic expression of GATA4 in mature human esophageal squamous epithelial cells. We found that GATA4 expression in esophageal squamous epithelial cells compromised squamous cell marker gene expression and up-regulated expression of the canonical columnar cell cytokeratin KRT8. We observed GATA4 occupancy in the p63, KRT5, and KRT15 promoters, suggesting that GATA4 directly represses expression of squamous epithelial cell marker genes. Finally, we verified GATA4 protein expression in BE and EAC and found that exposure of esophageal squamous epithelial cells to acid and bile, known BE risk factors, induced GATA4 mRNA expression. We conclude that GATA4 suppresses expression of genes marking the stratified squamous epithelial cell lineage and that this repressive action by GATA4 may have implications in BE and EAC.
Collapse
Affiliation(s)
- Roman Stavniichuk
- Department of Cell Biology, Neurobiology, and Anatomy, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Ann DeLaForest
- Department of Cell Biology, Neurobiology, and Anatomy, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Cayla A Thompson
- Department of Cell Biology, Neurobiology, and Anatomy, Medical College of Wisconsin, Milwaukee, WI, USA
| | - James Miller
- Department of Pathology, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Rhonda F Souza
- Department of Medicine, Center for Esophageal Diseases, Baylor University Medical Center and Center for Esophageal Research, Baylor Scott & White Research Institute, Dallas, TX, USA
| | - Michele A Battle
- Department of Cell Biology, Neurobiology, and Anatomy, Medical College of Wisconsin, Milwaukee, WI, USA.
| |
Collapse
|
10
|
Gupta P, Rizvi SZ, Lal N, Gupta V, Srivastav AN, Musa O. Expression of CD44 and CD133 stem cell markers in squamous cell carcinoma of esophagus. INDIAN J PATHOL MICR 2021; 64:472-478. [PMID: 34341256 DOI: 10.4103/ijpm.ijpm_682_20] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Context Role of cancer stem cells in the esophageal carcinogenesis is not clear. Aim To assess the expression of CD44 and CD133 cancer stem cell markers in esophageal squamous cell carcinoma (ESCC) and its predisposing lesions by immunohistochemistry. Setting and Design Prospective study as a part of an intramural research project. Materials and Methods Tissues samples were obtained with endoscopic biopsy and from surgically resected esophageal specimens. Fifty cases each of histopathologically diagnosed cases of esophageal squamous cell carcinoma and its predisposing lesions (mild, moderate, and severe dysplasia and esophagitis) were evaluated for stem cell marker CD44 and C133 by immunohistochemistry using a scoring system. Statistical Analysis Chi-square test, analysis of variance (ANOVA), post-hoc tests (Tukey-HSD) were used as appropriate for data analysis. Two sided P < 0.05 was considered as significant. Results CD44 expression was significantly higher in ESCC as compared to dysplasia and esophagitis (mean IS 7.92 ± 1.45 vs. 6.34 ± 0.80 vs 5.15 ± 0.86 respectively, P < 0.001). CD133 expression was also significantly higher in ESCC as compared to dysplasia (mean IS 6.82 ± 1.57 vs. 1.00 ± 0.00 respectively, P < 0.001) while esophagitis showed no expression. CD44 and CD133 expressions were significantly higher in poorly differentiated ESCC than moderately differentiated and well differentiated lesions (CD44 mean IS 6.94 ± 1.44 vs 8.17 ± 1.38 vs. 8.63 ± 1.02 respectively, P < 0.001 and CD 133 mean IRS 5.63 ± 0.81 vs 6.00 ± 00 vs. 9.0 ± 00 respectively, P < 0.001). Conclusion Significantly higher expression of CD44 and CD133 cancer stem cell markers in ESCC as compared to its predisposing lesions (esophagitis and dysplasia) suggests its role in esophageal carcinogenesis.
Collapse
Affiliation(s)
- Parul Gupta
- Department of Pathology, Era's Lucknow Medical College and Hospital, Era University, Lucknow, Uttar Pradesh, India
| | - Sania Z Rizvi
- Department of Pathology, Era's Lucknow Medical College and Hospital, Era University, Lucknow, Uttar Pradesh, India
| | - Nirupma Lal
- Department of Pathology, Era's Lucknow Medical College and Hospital, Era University, Lucknow, Uttar Pradesh, India
| | - Vishal Gupta
- Department of Surgical Gastroenterology, King George's Medical University, Lucknow, Uttar Pradesh, India
| | - Anand N Srivastav
- Director Research, Era's Lucknow Medical College and Hospital, Era University, Lucknow, Uttar Pradesh, India
| | - Osman Musa
- Department of Surgery, Era's Lucknow Medical College and Hospital, Era University, Lucknow, Uttar Pradesh, India
| |
Collapse
|
11
|
Badgery H, Chong L, Iich E, Huang Q, Georgy SR, Wang DH, Read M. Recent insights into the biology of Barrett's esophagus. Ann N Y Acad Sci 2020; 1481:198-209. [PMID: 32681541 DOI: 10.1111/nyas.14432] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Revised: 06/04/2020] [Accepted: 06/17/2020] [Indexed: 12/21/2022]
Abstract
Barrett's esophagus (BE) is the only known precursor to esophageal adenocarcinoma (EAC), an aggressive cancer with a poor prognosis. Our understanding of the pathogenesis and Barrett's metaplasia is incomplete, and this has limited the development of new therapeutic targets and agents, risk stratification ability, and management strategies. This review outlines current insights into the biology of BE and addresses controversies surrounding cell of origin, cellular reprogramming theories, updates on esophageal epithelial barrier function, and the significance of goblet cell metaplasia and its association with malignant change. Further research into the basic biology of BE is vital as it will underpin novel therapies and improve our ability to predict malignant progression and help identify the minority of patients who will develop EAC.
Collapse
Affiliation(s)
- Henry Badgery
- Department of Upper Gastrointestinal Surgery, St Vincent's Hospital, Melbourne, Victoria, Australia
| | - Lynn Chong
- Department of Upper Gastrointestinal Surgery, St Vincent's Hospital, Melbourne, Victoria, Australia
| | - Elhadi Iich
- Cancer Biology and Surgical Oncology Laboratory, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
| | - Qin Huang
- Department of Pathology and Laboratory Medicine, Veterans Affairs Boston Healthcare System and Harvard Medical School, West Roxbury, Massachusetts
| | - Smitha Rose Georgy
- Department of Anatomic Pathology, Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Melbourne, Victoria, Australia
| | - David H Wang
- Department of Hematology and Oncology, UT Southwestern Medical Centre and VA North Texas Health Care System, Dallas, Texas
| | - Matthew Read
- Department of Upper Gastrointestinal Surgery, St Vincent's Hospital, Melbourne, Victoria, Australia.,Department of Surgery, The University of Melbourne, St Vincent's Hospital, Melbourne, Victoria, Australia
| |
Collapse
|
12
|
Abstract
There is a wide range of oesophageal diseases, the most general of which are inflammation, injury and tumours, and treatment methods are constantly being developed and updated. With an increasingly comprehensive understanding of stem cells and their characteristics of multilineage differentiation, self-renewal and homing as well as the combination of stem cells with regenerative medicine, tissue engineering and gene therapy, stem cells are playing an important role in the treatment of a variety of diseases. Mesenchymal stem cells have many advantages and are most commonly applied; however, most of these applications have been in experimental studies, with few related clinical trials for comparison. Therefore, the methods, positive significance and limitations of stem cells in the treatment of oesophageal diseases remain incompletely understood. Thus, the purpose of this paper is to review the current literature and summarize the efficacy of stem cells in the treatment of oesophageal diseases, including oesophageal ulceration, acute radiation-induced oesophageal injury, corrosive oesophageal injury, oesophageal stricture formation after endoscopic submucosal dissection and oesophageal reconstruction, as well as gene therapy for oesophageal cancer.
Collapse
Affiliation(s)
- Yang Gao
- Department of Gastroenterology and Hepatology, The Second Affiliated Hospital of Harbin Medical University, Harbin 150086, Heilongjiang Province, China
| | - Shi-Zhu Jin
- Department of Gastroenterology and Hepatology, The Second Affiliated Hospital of Harbin Medical University, Harbin 150086, Heilongjiang Province, China
| |
Collapse
|
13
|
Fu DJ, Wang L, Chouairi FK, Rose IM, Abetov DA, Miller AD, Yamulla RJ, Schimenti JC, Flesken-Nikitin A, Nikitin AY. Gastric squamous-columnar junction contains a large pool of cancer-prone immature osteopontin responsive Lgr5 -CD44 + cells. Nat Commun 2020; 11:84. [PMID: 31901081 DOI: 10.1038/s41467-019-13847-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2018] [Accepted: 11/29/2019] [Indexed: 12/12/2022] Open
Abstract
Areas of a junction between two types of epithelia are known to be cancer-prone in many organ systems. However, mechanisms for preferential malignant transformation at the junction areas remain insufficiently elucidated. Here we report that inactivation of tumor suppressor genes Trp53 and Rb1 in the gastric squamous-columnar junction (SCJ) epithelium results in preferential formation of metastatic poorly differentiated neoplasms, which are similar to human gastroesophageal carcinoma. Unlike transformation-resistant antral cells, SCJ cells contain a highly proliferative pool of immature Lgr5−CD44+ cells, which are prone to transformation in organoid assays, comprise early dysplastic lesions, and constitute up to 30% of all neoplastic cells. CD44 ligand osteopontin (OPN) is preferentially expressed in and promotes organoid formation ability and transformation of the SCJ glandular epithelium. OPN and CD44 overexpression correlate with the worst prognosis of human gastroesophageal carcinoma. Thus, detection and selective targeting of the active OPN-CD44 pathway may have direct clinical relevance. Cancers arising from the gastric squamous-columnar junction have high incidence and are characterized by a poor prognosis. Here, the authors use genetic mouse models to show that loss of p53 and Rb1 expression results in preferential tumour development at the gastric squamous-columnar junction that contains a large pool of osteopontin responsive Lgr5-CD44+ cells.
Collapse
|
14
|
|
15
|
Batista S, Gregório AC, Hanada Otake A, Couto N, Costa-Silva B. The Gastrointestinal Tumor Microenvironment: An Updated Biological and Clinical Perspective. J Oncol 2019; 2019:6240505. [PMID: 31885581 DOI: 10.1155/2019/6240505] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Accepted: 10/30/2019] [Indexed: 12/24/2022]
Abstract
Gastrointestinal cancers are still responsible for high numbers of cancer-related deaths despite advances in therapy. Tumor-associated cells play a key role in tumor biology, by supporting or halting tumor development through the production of extracellular matrix, growth factors, cytokines, and extracellular vesicles. Here, we review the roles of these tumor-associated cells in the initiation, angiogenesis, immune modulation, and resistance to therapy of gastrointestinal cancers. We also discuss novel diagnostic and therapeutic strategies directed at tumor-associated cells and their potential benefits for the survival of these patients.
Collapse
|
16
|
Xia Y, Fang Y, Zhang H, Shen C, Wang P, Yan W, Li J, Xu Y, Shao S, Zhang Y, Yu X, Peng Z, Peng G, Chen W, Fang D. Role of Kruppel-Like Factor 5 in Deoxycholic Acid-Mediated Intestinal Transdifferentiation of Esophageal Squamous Epithelium. J Cancer 2019; 10:5597-5607. [PMID: 31632504 PMCID: PMC6775683 DOI: 10.7150/jca.30050] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Accepted: 05/26/2019] [Indexed: 12/15/2022] Open
Abstract
Barrett's esophagus (BE) is an acquired condition in which normal squamous epithelium is replaced with metaplastic columnar epithelium as a consequence of gastroesophageal reflux disease. BE is known as a precursor of esophageal adenocarcinoma. Currently, the molecular mechanism underlying epithelial metaplasia in BE patients remains unknown. Therefore, we investigated the role of Krüppel-like factor 5 (KLF5) signaling in the initiation of BE-associated metaplasia. Sprague-Dawley (SD) rats were used to create a surgical model of bile reflux injury. Immunohistochemistry was performed to analyze human and mouse esophageal specimens. Human esophageal squamous epithelial (HET-1A) cells were treated with bile acid and used in transfection experiments. Quantitative real-time PCR and western blot analysis were performed to detect the expression of KLF5, CDX2, MUC2 and villin. Epithelial tissue from both the rat BE model and human BE patients strongly expressed KLF5, CDX2, MUC2, and villin. Bile acid treatment also increased the expression of KLF5, CDX2, MUC2 and villin in esophageal epithelial cells in a time-dependent manner. Moreover, siRNA-mediated knockdown of KLF5 blocked the expression of CDX2, MUC2 and villin, but transfection of a KLF5 expression vector into esophageal epithelial cells promoted their transdifferentiation into columnar-like cells, as demonstrated by increased expression of the intestinal markers CDX2, MUC2 and villin. Thus, in addition to its function as a transcription factor, KLF5 may be linked to an increased risk of BE development.
Collapse
Affiliation(s)
- Yiju Xia
- Department of Gastroenterology, Southwest Hospital, Army Medical University, Chongqing, 400038, P.R. China
| | - Yu Fang
- Department of Thoracic and Cardiovascular Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400042, China
| | - Haoxiang Zhang
- Department of Gastroenterology, Southwest Hospital, Army Medical University, Chongqing, 400038, P.R. China
| | - Caifei Shen
- Department of Gastroenterology, Southwest Hospital, Army Medical University, Chongqing, 400038, P.R. China
| | - Pu Wang
- Department of Gastroenterology, Southwest Hospital, Army Medical University, Chongqing, 400038, P.R. China
| | - Wu Yan
- Department of Gastroenterology, Southwest Hospital, Army Medical University, Chongqing, 400038, P.R. China
| | - Jingwen Li
- Department of Gastroenterology, Southwest Hospital, Army Medical University, Chongqing, 400038, P.R. China
| | - Yin Xu
- Department of Gastroenterology, Southwest Hospital, Army Medical University, Chongqing, 400038, P.R. China
| | - Shunzi Shao
- Department of Gastroenterology, Southwest Hospital, Army Medical University, Chongqing, 400038, P.R. China
| | - Yafei Zhang
- Department of Gastroenterology, Southwest Hospital, Army Medical University, Chongqing, 400038, P.R. China
| | - Xiaona Yu
- Department of Gastroenterology, Southwest Hospital, Army Medical University, Chongqing, 400038, P.R. China
| | - Zhihong Peng
- Department of Gastroenterology, Southwest Hospital, Army Medical University, Chongqing, 400038, P.R. China
| | - Guiyong Peng
- Department of Gastroenterology, Southwest Hospital, Army Medical University, Chongqing, 400038, P.R. China
| | - Wensheng Chen
- Department of Gastroenterology, Southwest Hospital, Army Medical University, Chongqing, 400038, P.R. China
| | - Dianchun Fang
- Department of Gastroenterology, Southwest Hospital, Army Medical University, Chongqing, 400038, P.R. China
| |
Collapse
|
17
|
Que J, Garman KS, Souza RF, Spechler SJ. Pathogenesis and Cells of Origin of Barrett's Esophagus. Gastroenterology 2019; 157:349-364.e1. [PMID: 31082367 PMCID: PMC6650338 DOI: 10.1053/j.gastro.2019.03.072] [Citation(s) in RCA: 78] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Revised: 03/22/2019] [Accepted: 03/25/2019] [Indexed: 02/06/2023]
Abstract
In patients with Barrett's esophagus (BE), metaplastic columnar mucosa containing epithelial cells with gastric and intestinal features replaces esophageal squamous mucosa damaged by gastroesophageal reflux disease. This condition is estimated to affect 5.6% of adults in the United States, and is a major risk factor for esophageal adenocarcinoma. Despite the prevalence and importance of BE, its pathogenesis is incompletely understood and there are disagreements over the cells of origin. We review mechanisms of BE pathogenesis, including transdifferentiation and transcommitment, and discuss potential cells of origin, including basal cells of the squamous epithelium, cells of esophageal submucosal glands and their ducts, cells of the proximal stomach, and specialized populations of cells at the esophagogastric junction (residual embryonic cells and transitional basal cells). We discuss the concept of metaplasia as a wound-healing response, and how cardiac mucosa might be the precursor of the intestinal metaplasia of BE. Finally, we discuss shortcomings in current diagnostic criteria for BE that have important clinical implications.
Collapse
Affiliation(s)
- Jianwen Que
- Division of Digestive and Liver Diseases and Center for Human Development, Department of Medicine, Columbia University, New York, New York.
| | - Katherine S. Garman
- Division of Gastroenterology, Department of Medicine, Duke University School of Medicine. Durham, NC
| | - Rhonda F. Souza
- Center for Esophageal Diseases, Department of Medicine, Baylor University Medical Center at Dallas, and Center for Esophageal Research, Department of Medicine, Baylor Scott & White Research Institute, Dallas, TX
| | - Stuart Jon Spechler
- Center for Esophageal Diseases, Department of Medicine, Baylor University Medical Center at Dallas, Dallas, Texas; Center for Esophageal Research, Department of Medicine, Baylor Scott & White Research Institute, Dallas, Texas.
| |
Collapse
|
18
|
Straub D, Oude Elferink RPJ, Jansen PLM, Bergman JJGHM, Parikh K, Krishnadath KK. Glyco-conjugated bile acids drive the initial metaplastic gland formation from multi-layered glands through crypt-fission in a murine model. PLoS One 2019; 14:e0220050. [PMID: 31348796 PMCID: PMC6660124 DOI: 10.1371/journal.pone.0220050] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2019] [Accepted: 07/08/2019] [Indexed: 12/22/2022] Open
Abstract
Bile acid reflux is known to be associated with the development of Barrett’s esophagus and esophageal adenocarcinoma (EAC), yet the role of specific bile acids and the mechanism behind the metaplastic changes is unclear. Here, we demonstrate that multi-layered glandular structures at the squamo-columnar junction in mice contain multiple cell lineages, which resemble the human esophageal submucosal gland ducts. Exposing mice to patient’s refluxates induced expansion of multi-layered glandular structures and development of columnar metaplasia at the squamo-columnar junction. The glycine conjugated bile acids induced an intestinal type of metaplasia more typical for Barrett’s esophagus. Through lineage tracing, we excluded the involvement of K5+, DCLK1+, and LGR5+ progenitor cells as the primary source in the development of the glandular metaplastic epithelium. We show that the mechanism behind development of metaplasia involves crypt fission and may be independent of stem cell proliferation. Our findings support the hypothesis that in humans, BE arises from non-squamous cells residing in submucosal gland ducts and that induction of intestinal type of metaplasia is most effectively induced by glycine-conjugated bile acids. These novel insights may lead to more effective strategies to prevent development of Barrett’s esophagus and esophageal adenocarcinoma.
Collapse
Affiliation(s)
- Danielle Straub
- Center for Experimental and Molecular Medicine (CEMM), Academic Medical Center, Amsterdam, The Netherlands
| | | | - Peter L. M. Jansen
- Department of Gastrointestinal and Liver Disease, Academic Medical Center, Amsterdam, The Netherlands
| | | | - Kaushal Parikh
- MRC Human Immunology Unit, Weatherall Institute of Molecular Medicine, University of Oxford, John Radcliffe Hospital, Oxford, United Kingdom
| | - Kausilia K. Krishnadath
- Center for Experimental and Molecular Medicine (CEMM), Academic Medical Center, Amsterdam, The Netherlands
- Department of Gastroenterology, Academic Medical Center, Amsterdam, The Netherlands
- * E-mail:
| |
Collapse
|
19
|
Abstract
Barrett's esophagus is considered a precancerous lesion of esophageal adenocarcinoma (EAC). Long‐segment Barrett's esophagus, which is generally associated with intestinal metaplasia, has a higher rate of carcinogenesis than short‐segment Barrett's esophagus, which is mainly composed of cardiac‐type mucosa. However, a large number of cases reportedly develop EAC from the cardiac‐type mucosa which has the potential to involve intestinal phenotypes. There is no consensus regarding whether the definition of Barrett's epithelium should include intestinal metaplasia. Basic researches using rodent models have provided information regarding the origins of Barrett's epithelium. Nevertheless, it remains unclear whether differentiated gastric columnar epithelium or stratified esophageal squamous epithelium undergo transdifferentiation into the intestinal‐type columnar epithelium, transcommittment into the columnar epithelium, or whether the other pathways exist. Reflux of duodenal fluid including bile acids into the stomach may occur when an individual lies down after eating, which could cause the digestive juices to collect in the fornix of the stomach. N‐nitroso‐bile acids are produced with nitrites that are secreted from the salivary glands, and bile acids can drive expression of pro‐inflammatory cytokines via EGFR or the NF‐κB pathway. These steps may contribute significantly to carcinogenesis.
Collapse
Affiliation(s)
- Ken-Ichi Mukaisho
- Division of Molecular and Diagnostic Pathology, Department of Pathology, Shiga University of Medical Science, Otsu, Japan
| | - Shunpei Kanai
- Division of Molecular and Diagnostic Pathology, Department of Pathology, Shiga University of Medical Science, Otsu, Japan
| | - Ryoji Kushima
- Division of Diagnostic Pathology, Shiga University of Medical Science Hospital, Otsu, Japan
| | - Takahisa Nakayama
- Division of Molecular and Diagnostic Pathology, Department of Pathology, Shiga University of Medical Science, Otsu, Japan
| | - Takanori Hattori
- Division of Molecular and Diagnostic Pathology, Department of Pathology, Shiga University of Medical Science, Otsu, Japan
| | - Hiroyuki Sugihara
- Division of Molecular and Diagnostic Pathology, Department of Pathology, Shiga University of Medical Science, Otsu, Japan
| |
Collapse
|
20
|
Abstract
PURPOSE OF REVIEW The cellular origins of Barrett's esophagus remain elusive. In this review, we discuss the potential cellular mechanisms behind squamous to columnar metaplasia as well as the limitations of these proposed mechanisms. RECENT FINDINGS Several theories have been proposed, including the reprogramming of native squamous cells, repopulation from submucosal glands, contributions from circulating bone marrow-derived cells, and direct extension of gastric cells. Most recent data support an innate progenitor cell unique to the squamocolumnar junction that can expand into metaplastic glands. Active investigation to clarify each of these potential cells of origin is being pursued, but ultimately each could contribute to the pathogenesis of Barrett's esophagus depending on the clinical context. Nonetheless, identifying cells of origin is critical to understand the molecular mechanisms behind Barrett's esophagus and developing strategies to better treat (and possibly prevent) this increasingly significant premalignant disease.
Collapse
Affiliation(s)
- Horace Rhee
- Division of Gastroenterology and Hepatology, Stanford University School of Medicine, Stanford, CA, USA
| | - David H Wang
- Division of Hematology and Oncology, Esophageal Diseases Center, Harold C. Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, 5323 Harry Hines Blvd, Dallas, TX, 75390-8584, USA. .,Medical Service, VA North Texas Health Care System, Dallas, TX, USA.
| |
Collapse
|
21
|
Abstract
Chronic injury and inflammation in the esophagus can cause a change in cellular differentiation known as metaplasia. Most commonly, the differentiation changes manifest as Barrett's esophagus (BE), characterized by the normal stratified squamous epithelium converting into a cuboidal-columnar, glandular morphology. BE cells can phenotypically resemble specific normal cell types of the stomach or intestine, or they can have overlapping phenotypes in disorganized admixtures. The stomach can also undergo metaplasia characterized by aberrant gastric or intestinal differentiation patterns. In both organs, it has been argued that metaplasia may represent a recapitulation of the embryonic or juvenile gastrointestinal tract, as cells access a developmental progenitor genetic program that can help repair damaged tissue. Here, we review the normal development of esophagus and stomach, and describe how BE represents an intermixing of cells resembling gastric pseudopyloric (SPEM) and intestinal metaplasia. We discuss a cellular process recently termed "paligenosis" that governs how mature, differentiated cells can revert to a proliferating progenitor state in metaplasia. We discuss the "Cyclical Hit" theory in which paligenosis might be involved in the increased risk of metaplasia for progression to cancer. However, somatic mutations might occur in proliferative phases and then be warehoused upon redifferentiation. Through years of chronic injury and many rounds of paligenosis and dedifferentiation, eventually a cell with a mutation that prevents dedifferentiation may arise and clonally expand fueling stable metaplasia and potentially thereafter acquiring additional mutations and progressing to dysplasia and cancer.
Collapse
Affiliation(s)
- Ramon U Jin
- Division of Oncology, Department of Internal Medicine, Washington University School of Medicine, St. Louis, MO, USA
| | - Jason C Mills
- Division of Gastroenterology, Department of Internal Medicine, Washington University School of Medicine, St. Louis, MO, USA.
- Department of Developmental Biology, Washington University School of Medicine, St. Louis, MO, USA.
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO, USA.
| |
Collapse
|
22
|
Abstract
The incidence of esophageal adenocarcinoma has been increasing in Western countries over the past several decades. Though Barrett's esophagus, in which the normal esophageal squamous epithelium is replaced with metaplastic intestinalized columnar cells due to chronic damage from gastroesophageal reflux, is accepted as the requisite precursor lesion for esophageal adenocarcinoma, the Barrett's esophagus cell of origin and the molecular mechanism underlying esophageal epithelial metaplasia remain controversial. Much effort has been dedicated towards identifying the Barrett's esophagus cell of origin since this could lead to more effective prevention and treatment strategies for both Barrett's esophagus and esophageal adenocarcinoma. Previously, it was hypothesized that terminally differentiated esophageal squamous cells might undergo direct conversion into specialized intestinal columnar cells via the process of transdifferentiation. However, there is increasing evidence that stem and/or progenitor cells are molecularly reprogrammed through the process of transcommitment to differentiate into the columnar cell lineages that characterize Barrett's esophagus. Given that Barrett's esophagus originates at the gastroesophageal junction, the boundary between the distal esophagus and gastric cardia, potential sources of these stem and/or progenitor cells include columnar cells from the squamocolumnar junction or neighboring gastric cardia, native esophageal squamous cells, native esophageal cuboidal or columnar cells from submucosal glands or ducts, or circulating bone marrow-derived cells. In this review, we focus on native esophageal specific stem and/or progenitor cells and detail molecular mediators of transcommitment based on recent insights gained from novel mouse models and clinical observations from patients.
Collapse
Affiliation(s)
- Wei Zhang
- Esophageal Diseases Center, Department of Internal Medicine and the Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - David H. Wang
- Esophageal Diseases Center, Department of Internal Medicine and the Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, Texas, USA,Medical Service, Dallas VA Medical Center, Dallas, Texas, USA
| |
Collapse
|
23
|
Schlottmann F, Molena D, Patti MG. Gastroesophageal reflux and Barrett’s esophagus: a pathway to esophageal adenocarcinoma. Updates Surg 2018; 70:339-342. [DOI: 10.1007/s13304-018-0564-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2018] [Accepted: 07/04/2018] [Indexed: 02/07/2023]
|
24
|
Agoston AT, Pham TH, Odze RD, Wang DH, Das KM, Spechler SJ, Souza RF. Columnar-Lined Esophagus Develops via Wound Repair in a Surgical Model of Reflux Esophagitis. Cell Mol Gastroenterol Hepatol 2018; 6:389-404. [PMID: 30186929 PMCID: PMC6122432 DOI: 10.1016/j.jcmgh.2018.06.007] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/04/2017] [Accepted: 06/19/2018] [Indexed: 01/11/2023]
Abstract
BACKGROUND & AIMS After esophagojejunostomy, rodents develop reflux esophagitis and a columnar-lined esophagus with features of Barrett's metaplasia. This rodent columnar-lined esophagus has been proposed to develop from cellular reprogramming of progenitor cells, but studies on early columnar-lined esophagus development are lacking. We performed a systematic, histologic, and immunophenotypic analysis of columnar-lined esophagus development in rats after esophagojejunostomy. METHODS At various times after esophagojejunostomy in 52 rats, the esophagus was removed and tissue sections were evaluated for type, location, and length of columnar lining. Molecular characteristics were evaluated by immunohistochemistry and immunofluorescence. RESULTS At week 2, ulceration was seen in esophageal squamous epithelium, starting distally at the esophagojejunostomy anastomosis. Re-epithelialization of the distal ulcer segment occurred via proliferation and expansion of immature-appearing glands budding directly off jejunal crypts, characteristic of wound healing. The columnar-lined esophagus's immunoprofile was similar to jejunal crypt epithelium, and columnar-lined esophagus length increased significantly from 0.15 mm (±0.1 SEM) at 2 weeks to 5.22 mm (±0.37) at 32 weeks. Neoglands were found within esophageal ulcer beds, and spindle-shaped cells expressing epithelial-mesenchymal transition markers were found at the columnar-lined esophagus's leading edge. Only proliferative squamous epithelium was found at the proximal ulcer border. CONCLUSIONS After esophagojejunostomy in rats, metaplastic columnar-lined esophagus develops via a wound healing process that does not appear to involve cellular reprogramming of progenitor cells. This process involves EMT-associated migration of jejunal cells into the esophagus, where they likely have a competitive advantage over squamous cells in the setting of ongoing gastroesophageal reflux disease.
Collapse
Affiliation(s)
- Agoston T. Agoston
- Department of Pathology, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts
| | - Thai H. Pham
- Department of Surgery, VA North Texas Health Care System, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Robert D. Odze
- Department of Pathology, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts
| | - David H. Wang
- Department of Medicine, VA North Texas Health Care System, University of Texas Southwestern Medical Center, Dallas, Texas,Harold C. Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Kiron M. Das
- Division of Gastroenterology, Department of Medicine, Rutgers Robert Wood Johnson Medical School, New Brunswick, New Jersey
| | - Stuart J. Spechler
- Department of Medicine, Center for Esophageal Diseases, Baylor University Medical Center, Center for Esophageal Research, Baylor Scott and White Research Institute, Dallas, Texas
| | - Rhonda F. Souza
- Department of Medicine, Center for Esophageal Diseases, Baylor University Medical Center, Center for Esophageal Research, Baylor Scott and White Research Institute, Dallas, Texas,Correspondence Address correspondence to: Rhonda F. Souza, MD, Center for Esophageal Research, Baylor University Medical Center, 2 Hoblitzelle, Suite 250, 3500 Gaston Avenue, Dallas, Texas 75246.
| |
Collapse
|
25
|
|
26
|
Abstract
BACKGROUND Gastroesophageal reflux disease (GERD) affects an estimated 20% of the population in the USA, and its prevalence is increasing worldwide. About 10-15% of patients with GERD will develop Barrett's esophagus (BE). AIMS The aims of this study were to review the available evidence of the pathophysiology of BE and the role of anti-reflux surgery in the treatment of this disease. RESULTS The transformation of the squamous epithelium into columnar epithelium with goblet cells is due to the chronic injury produced by repeated reflux episodes. It involves genetic mutations that in some patients may lead to high-grade dysplasia and cancer. There is no strong evidence that anti-reflux surgery is associated with resolution or improvement in BE, and its indications should be the same as for other GERD patients without BE. CONCLUSIONS Patients with BE without dysplasia require endoscopic surveillance, while those with low- or high-grade dysplasia should have consideration of endoscopic eradication therapy followed by surveillance. New endoscopic treatment modalities are being developed, which hold the promise to improve the management of patients with BE.
Collapse
|
27
|
|
28
|
Jiang M, Li H, Zhang Y, Yang Y, Lu R, Liu K, Lin S, Lan X, Wang H, Wu H, Zhu J, Zhou Z, Xu J, Lee DK, Zhang L, Lee YC, Yuan J, Abrams JA, Wang TG, Sepulveda AR, Wu Q, Chen H, Sun X, She J, Chen X, Que J. Transitional basal cells at the squamous-columnar junction generate Barrett's oesophagus. Nature 2017; 550:529-533. [PMID: 29019984 PMCID: PMC5831195 DOI: 10.1038/nature24269] [Citation(s) in RCA: 156] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2016] [Accepted: 09/09/2017] [Indexed: 02/08/2023]
Abstract
In several organ systems, the transitional zone between different types of epithelium is a hotspot for pre-neoplastic metaplasia and malignancy, but the cells of origin for these metaplastic epithelia and subsequent malignancies remain unknown. In the case of Barrett's oesophagus, intestinal metaplasia occurs at the gastro-oesophageal junction, where stratified squamous epithelium transitions into simple columnar cells. On the basis of a number of experimental models, several alternative cell types have been proposed as the source of this metaplasia but in all cases the evidence is inconclusive: no model completely mimics Barrett's oesophagus in terms of the presence of intestinal goblet cells. Here we describe a transitional columnar epithelium with distinct basal progenitor cells (p63+KRT5+KRT7+) at the squamous-columnar junction of the upper gastrointestinal tract in a mouse model. We use multiple models and lineage tracing strategies to show that this squamous-columnar junction basal cell population serves as a source of progenitors for the transitional epithelium. On ectopic expression of CDX2, these transitional basal progenitors differentiate into intestinal-like epithelium (including goblet cells) and thereby reproduce Barrett's metaplasia. A similar transitional columnar epithelium is present at the transitional zones of other mouse tissues (including the anorectal junction) as well as in the gastro-oesophageal junction in the human gut. Acid reflux-induced oesophagitis and the multilayered epithelium (believed to be a precursor of Barrett's oesophagus) are both characterized by the expansion of the transitional basal progenitor cells. Our findings reveal a previously unidentified transitional zone in the epithelium of the upper gastrointestinal tract and provide evidence that the p63+KRT5+KRT7+ basal cells in this zone are the cells of origin for multi-layered epithelium and Barrett's oesophagus.
Collapse
Affiliation(s)
- Ming Jiang
- Department of Medicine, Columbia University Medical Center, NY 10032, USA
| | - Haiyan Li
- Department of Medicine, Columbia University Medical Center, NY 10032, USA
| | - Yongchun Zhang
- Department of Medicine, Columbia University Medical Center, NY 10032, USA
| | - Ying Yang
- Department of Medicine, Columbia University Medical Center, NY 10032, USA
| | - Rong Lu
- Department of Medicine, Columbia University Medical Center, NY 10032, USA
| | - Kuancan Liu
- Department of Medicine, Columbia University Medical Center, NY 10032, USA
- Institute for laboratory medicine, Fuzhou General Hospital, Fuzhou, Fujian 350025, P.R. China
| | - Sijie Lin
- Department of Medicine, Columbia University Medical Center, NY 10032, USA
- Institute for laboratory medicine, Fuzhou General Hospital, Fuzhou, Fujian 350025, P.R. China
| | - Xiaopeng Lan
- Institute for laboratory medicine, Fuzhou General Hospital, Fuzhou, Fujian 350025, P.R. China
| | - Haikun Wang
- CAS key laboratory of molecular virology and immunology, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai 200031, P.R. China
| | - Han Wu
- Ascendas Genomics Inc., Zhongshan, Guandong 529437, P.R. China
| | - Jian Zhu
- School of Medicine and Dentistry, University of Rochester, Rochester, NY 14642
| | - Zhongren Zhou
- School of Medicine and Dentistry, University of Rochester, Rochester, NY 14642
| | - Jianming Xu
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX 77030
| | - Dong-Kee Lee
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX 77030
| | - Lanjing Zhang
- Department of Pathology, University Medical Center of Princeton at Plainsboro, Plainsboro, NJ 08536
- Department of Biological Sciences, Rutgers University, Newark, NJ 07102
| | - Yuan-Cho Lee
- Department of Radiation Oncology, Columbia University Medical Center, NY 10032
| | - Jingsong Yuan
- Department of Radiation Oncology, Columbia University Medical Center, NY 10032
| | - Julian A. Abrams
- Department of Medicine, Columbia University Medical Center, NY 10032, USA
| | - Timothy G. Wang
- Department of Medicine, Columbia University Medical Center, NY 10032, USA
| | | | - Qi Wu
- Tianjin Haihe Hospital, Tianjin 300350, P.R. China
| | | | - Xin Sun
- Tianjin Haihe Hospital, Tianjin 300350, P.R. China
| | - Junjun She
- Department of General Surgery, First Affiliated Hospital of Medical College, Xi’an Jiaotong University, Xi’an 710061, China
| | - Xiaoxin Chen
- Biomedical/Biotechnology Research Institute, North Carolina Central University, Durham, NC 27707
| | - Jianwen Que
- Department of Medicine, Columbia University Medical Center, NY 10032, USA
- Corresponding author: Jianwen Que, MD, PhD. Center for Human Development and Division of Digestive and Liver Diseases, Department of Medicine, BB-810, 650 West 168th Street, Columbia University Medical Center, NY 10032, USA. . Tel: +1-212-305-5961
| |
Collapse
|
29
|
Abstract
Metaplasia is the replacement of one differentiated somatic cell type with another differentiated somatic cell type in the same tissue. Typically, metaplasia is triggered by environmental stimuli, which may act in concert with the deleterious effects of microorganisms and inflammation. The cell of origin for intestinal metaplasia in the oesophagus and stomach and for pancreatic acinar-ductal metaplasia has been posited through genetic mouse models and lineage tracing but has not been identified in other types of metaplasia, such as squamous metaplasia. A hallmark of metaplasia is a change in cellular identity, and this process can be regulated by transcription factors that initiate and/or maintain cellular identity, perhaps in concert with epigenetic reprogramming. Universally, metaplasia is a precursor to low-grade dysplasia, which can culminate in high-grade dysplasia and carcinoma. Improved clinical screening for and surveillance of metaplasia might lead to better prevention or early detection of dysplasia and cancer.
Collapse
Affiliation(s)
- Veronique Giroux
- University of Pennsylvania Perelman School of Medicine, 951 BRB, 421 Curie Boulevard, Philadelphia, Pennsylvania 19104, USA
| | - Anil K Rustgi
- University of Pennsylvania Perelman School of Medicine, 951 BRB, 421 Curie Boulevard, Philadelphia, Pennsylvania 19104, USA
| |
Collapse
|
30
|
Serakinci N, Tulay P, Kalkan R. Role of Mesenchymal Stem Cells in Cancer Development and Their Use in Cancer Therapy. In: Van Pham P, editor. Stem Cells: Biology and Engineering. Cham: Springer International Publishing; 2018. pp. 45-62. [DOI: 10.1007/5584_2017_64] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
|
31
|
Affiliation(s)
- Stuart J. Spechler
- Correspondence Address correspondence to: Stuart J. Spechler, MD, Division of Gastroenterology, Baylor University Medical Center at Dallas, 3500 Gaston Avenue, 2 Hoblitzelle, Suite 250, Dallas, TX 75246.Division of GastroenterologyBaylor University Medical Center at Dallas3500 Gaston Avenue, 2 HoblitzelleSuite 250DallasTX 75246
| |
Collapse
|
32
|
Rolim I, Rodrigues RV, Bettencourt A, Barros R, Camilo V, Dias Pereira A, Almeida R, Chaves P. Mid-Esophagus Columnar Metaplasia: What Is the Biopathogenic Pathway? Int J Surg Pathol 2016; 25:262-265. [DOI: 10.1177/1066896916672332] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Inês Rolim
- Portuguese Oncology Institute Francisco
Gentil, E.P.E., Lisbon, Portugal
| | | | | | - Rita Barros
- Institute of Molecular Pathology and
Immunology of the University of Porto (IPATIMUP), Porto, Portugal
- Instituto de Investigação e Inovação em Saúde
(i3S), Porto, Portugal
- Faculty of Dental Medicine of the University
of Porto, Porto, Portugal
- Faculty of Medicine of the University of
Porto, Porto, Portugal
| | - Vânia Camilo
- Institute of Molecular Pathology and
Immunology of the University of Porto (IPATIMUP), Porto, Portugal
- Instituto de Investigação e Inovação em Saúde
(i3S), Porto, Portugal
| | - António Dias Pereira
- Portuguese Oncology Institute Francisco
Gentil, E.P.E., Lisbon, Portugal
- Beira Interior University, Covilhã,
Portugal
| | - Raquel Almeida
- Institute of Molecular Pathology and
Immunology of the University of Porto (IPATIMUP), Porto, Portugal
- Instituto de Investigação e Inovação em Saúde
(i3S), Porto, Portugal
- Faculty of Medicine of the University of
Porto, Porto, Portugal
- Biology Department, Faculty of Sciences of the
University of Porto, Porto, Portugal
| | - Paula Chaves
- Portuguese Oncology Institute Francisco
Gentil, E.P.E., Lisbon, Portugal
- Beira Interior University, Covilhã,
Portugal
| |
Collapse
|
33
|
Abstract
This review provides a summary of our current understanding of, and the controversies surrounding, the diagnosis, pathogenesis, histopathology, and molecular biology of Barrett's esophagus (BE) and associated neoplasia. BE is defined as columnar metaplasia of the esophagus. There is worldwide controversy regarding the diagnostic criteria of BE, mainly with regard to the requirement to histologically identify goblet cells in biopsies. Patients with BE are at increased risk for adenocarcinoma, which develops in a metaplasia-dysplasia-carcinoma sequence. Surveillance of patients with BE relies heavily on the presence and grade of dysplasia. However, there are significant pathologic limitations and diagnostic variability in evaluating dysplasia, particularly with regard to the more recently recognized unconventional variants. Identification of non-morphology-based biomarkers may help risk stratification of BE patients, and this is a subject of ongoing research. Because of recent achievements in endoscopic therapy, there has been a major shift in the treatment of BE patients with dysplasia or intramucosal cancer away from esophagectomy and toward endoscopic mucosal resection and ablation. The pathologic issues related to treatment and its complications are also discussed in this review article.
Collapse
|
34
|
Shen C, Zhang H, Wang P, Feng J, Li J, Xu Y, Zhang A, Shao S, Yu X, Yan W, Xia Y, Hu J, Fang D. Deoxycholic acid (DCA) confers an intestinal phenotype on esophageal squamous epithelium via induction of the stemness-associated reprogramming factors OCT4 and SOX2. Cell Cycle 2016; 15:1439-49. [PMID: 27096226 DOI: 10.1080/15384101.2016.1175252] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
Barrett's esophagus (BE) is essentially a metaplasia in which the normal stratified squamous epithelium is replaced by columnar epithelium. This study focuses on the involvement of OCT4 and SOX2, 2 key cell-reprogramming factors, in the deoxycholic acid (DCA)-induced expression of the intestinal hallmarks Cdx2 and MUC2 using both in vivo and in vitro models. Up-regulated expression of OCT4 and down-regulated expression of SOX2 were observed in BE compared with normal esophagus and esophagitis. Consistent with the data in vivo, DCA induced time-dependent expression of OCT4 at both the mRNA and protein levels and decreased nuclear expression of SOX2 in Het-1A cells. Down-regulation of OCT4 expression by siRNA abrogated DCA-induced expression of Cdx2 and MUC2, whereas siRNA against SOX2 significantly upregulated the expression of both Cdx2 and MUC2. Our data indicate that both OCT4 and SOX2 play important roles in the development of BE triggered by bile acid reflux.
Collapse
Affiliation(s)
- Caifei Shen
- a Department of Gastroenterology , Southwest Hospital, Third Military Medical University , Chongqing , China
| | - Haoxiang Zhang
- a Department of Gastroenterology , Southwest Hospital, Third Military Medical University , Chongqing , China
| | - Pu Wang
- a Department of Gastroenterology , Southwest Hospital, Third Military Medical University , Chongqing , China
| | - Ji Feng
- a Department of Gastroenterology , Southwest Hospital, Third Military Medical University , Chongqing , China
| | - Jingwen Li
- a Department of Gastroenterology , Southwest Hospital, Third Military Medical University , Chongqing , China
| | - Yin Xu
- a Department of Gastroenterology , Southwest Hospital, Third Military Medical University , Chongqing , China
| | - Anran Zhang
- a Department of Gastroenterology , Southwest Hospital, Third Military Medical University , Chongqing , China
| | - Shunzi Shao
- a Department of Gastroenterology , Southwest Hospital, Third Military Medical University , Chongqing , China
| | - Xiaona Yu
- a Department of Gastroenterology , Southwest Hospital, Third Military Medical University , Chongqing , China
| | - Wu Yan
- a Department of Gastroenterology , Southwest Hospital, Third Military Medical University , Chongqing , China
| | - Yiju Xia
- a Department of Gastroenterology , Southwest Hospital, Third Military Medical University , Chongqing , China
| | - Jiali Hu
- a Department of Gastroenterology , Southwest Hospital, Third Military Medical University , Chongqing , China
| | - Dianchun Fang
- a Department of Gastroenterology , Southwest Hospital, Third Military Medical University , Chongqing , China
| |
Collapse
|
35
|
Abstract
Reflux esophagitis causes Barrett's metaplasia, an abnormal esophageal mucosa predisposed to adenocarcinoma. Medical therapy for reflux esophagitis focuses on decreasing gastric acid production with proton pump inhibitors. We have reported that reflux esophagitis in a rat model develops from a cytokine-mediated inflammatory injury, not from a caustic chemical (acid) injury. In this model, refluxed acid and bile stimulate the release of inflammatory cytokines from esophageal squamous cells, recruiting lymphocytes first to the submucosa and later to the luminal surface. Emerging studies on acute reflux esophagitis in humans support this new concept, suggesting that reflux-induced cytokine release may be a future target for medical therapies. Sometimes, reflux esophagitis heals with Barrett's metaplasia, a process facilitated by reflux-related nitric oxide (NO) production and Sonic Hedgehog (Hh) secretion by squamous cells. We have shown that NO reduces expression of genes that promote a squamous cell phenotype, while Hh signaling induces genes that mediate the development of the columnar cell phenotypes of Barrett's metaplasia. Agents targeting esophageal NO production or Hh signaling conceivably could prevent the development of Barrett's esophagus. Persistent reflux promotes cancer in Barrett's metaplasia. We have reported that acid and bile salts induce DNA damage in Barrett's cells. Bile salts also cause NF-x03BA;B activation in Barrett's cells, enabling them to resist apoptosis in the setting of DNA damage and likely contributing to carcinogenesis. Oral treatment with ursodeoxycholic acid prevents the esophageal DNA damage and NF-x03BA;B activation induced by toxic bile acids. Altering bile acid composition might be another approach to cancer prevention.
Collapse
Affiliation(s)
- Rhonda F. Souza
- Esophageal Diseases Center, Department of Medicine, VA North Texas Health Care System and the University of Texas Southwestern Medical Center, Dallas, TX, the Harold C. Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX, USA
| |
Collapse
|
36
|
Lowes H, Somarathna T, Shepherd NA. Definition, Derivation, and Diagnosis of Barrett’s Esophagus: Pathological Perspectives. Advances in Experimental Medicine and Biology 2016; 908:111-36. [DOI: 10.1007/978-3-319-41388-4_7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
|
37
|
Abstract
Barrett's esophagus is the condition in which metaplastic columnar epithelium that predisposes to cancer development replaces stratified squamous epithelium in the distal esophagus. Potential sources for the cell or tissue of origin for metaplastic Barrett's epithelium are reviewed including native esophageal differentiated squamous cells, progenitor cells native to the esophagus located within the squamous epithelium or in the submucosal glands or ducts, circulating bone marrow-derived stem cells, and columnar progenitor cells from the squamocolumnar junction or the gastric cardia that proximally shift into the esophagus to fill voids left by damaged squamous epithelium. Wherever its source the original cell must undergo molecular reprogramming (i.e., either transdifferentiation or transcommitment) to give rise to specialized intestinal metaplasia. Transcription factors that specify squamous, columnar, intestinal, and mucus-secreting epithelial differentiation are discussed. An improved understanding of how esophageal columnar metaplasia forms could lead to development of effective treatment or prevention strategies for Barrett's esophagus. It could also more broadly inform upon normal tissue development and differentiation, wound healing, and stem cell biology.
Collapse
Affiliation(s)
- David H Wang
- Division of Hematology and Oncology, Department of Internal Medicine, Harold C. Simmons Comprehensive Cancer Center, Esophageal Diseases Center, Medical Service, VA North Texas Health Care System, University of Texas Southwestern Medical Center, 5323 Harry Hines Blvd, Dallas, TX, 75390-8852, USA.
| | - Rhonda F Souza
- Division of Digestive and Liver Diseases, Department of Internal Medicine, Harold C. Simmons Comprehensive Cancer Center, Esophageal Diseases Center, Medical Service (111B1), VA North Texas Health Care System, University of Texas Southwestern Medical Center, 4500 S. Lancaster Road, Dallas, TX, 75216, USA
| |
Collapse
|
38
|
Vega ME, Giroux V, Natsuizaka M, Liu M, Klein-Szanto AJ, Stairs DB, Nakagawa H, Wang KK, Wang TC, Lynch JP, Rustgi AK. Inhibition of Notch signaling enhances transdifferentiation of the esophageal squamous epithelium towards a Barrett's-like metaplasia via KLF4. Cell Cycle 2015; 13:3857-66. [PMID: 25558829 DOI: 10.4161/15384101.2014.972875] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Barrett's esophagus (BE) is defined as an incomplete intestinal metaplasia characterized generally by the presence of columnar and goblet cells in the formerly stratified squamous epithelium of the esophagus. BE is known as a precursor for esophageal adenocarcinoma. Currently, the cell of origin for human BE has yet to be clearly identified. Therefore, we investigated the role of Notch signaling in the initiation of BE metaplasia. Affymetrix gene expression microarray revealed that BE samples express decreased levels of Notch receptors (NOTCH2 and NOTCH3) and one of the the ligands (JAG1). Furthermore, BE tissue microarray showed decreased expression of NOTCH1 and its downstream target HES1. Therefore, Notch signaling was inhibited in human esophageal epithelial cells by expression of dominant-negative-Mastermind-like (dnMAML), in concert with MYC and CDX1 overexpression. Cell transdifferentiation was then assessed by 3D organotypic culture and evaluation of BE-lineage specific gene expression. Notch inhibition promoted transdifferentiation of esophageal epithelial cells toward columnar-like cells as demonstrated by increased expression of columnar keratins (K8, K18, K19, K20) and glandular mucins (MUC2, MUC3B, MUC5B, MUC17) and decreased expression of squamous keratins (K5, K13, K14). In 3D culture, elongated cells were observed in the basal layer of the epithelium with Notch inhibition. Furthermore, we observed increased expression of KLF4, a potential driver of the changes observed by Notch inhibition. Interestingly, knockdown of KLF4 reversed the effects of Notch inhibition on BE-like metaplasia. Overall, Notch signaling inhibition promotes transdifferentiation of esophageal cells toward BE-like metaplasia in part via upregulation of KLF4. These results support a novel mechanism through which esophageal epithelial transdifferentiation promotes the evolution of BE.
Collapse
Affiliation(s)
- Maria E Vega
- a Division of Gastroenterology; Department of Medicine ; University of Pennsylvania ; Philadelphia , PA , USA
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
39
|
Kohata Y, Nakahara K, Tanigawa T, Yamagami H, Shiba M, Watanabe T, Tominaga K, Fujiwara Y, Arakawa T. Rebamipide Alters the Esophageal Microbiome and Reduces the Incidence of Barrett's Esophagus in a Rat Model. Dig Dis Sci 2015; 60:2654-61. [PMID: 25862640 DOI: 10.1007/s10620-015-3662-4] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/04/2015] [Accepted: 04/03/2015] [Indexed: 01/16/2023]
Abstract
BACKGROUND Barrett's esophagus (BE) is characterized by a distinct Th2-predominant cytokine profile. However, antigens that shift the immune response toward the Th2 profile are unknown. AIM We examined the effects of rebamipide on the esophageal microbiome and BE development in a rat model. METHODS BE was induced by esophagojejunostomy in 8-week-old male Wistar rats. Rats were divided into control and rebamipide-treated group receiving either a normal or a 0.225 % rebamipide-containing diet, respectively, and killed 8, 16, 24, and 32 weeks after the operation. PCR-amplified 16S rDNAs extracted from esophageal samples were examined by terminal-restriction fragment length polymorphism (T-RFLP) analysis to assess microbiome composition. The dynamics of four bacterial genera (Lactobacillus, Clostridium, Streptococcus, and Enterococcus) were analyzed by real-time PCR. RESULTS The incidences of BE in the control and rebamipide group at 24 and 32 weeks were 80 and 100, and 20 and 33 %, respectively. T-RFLP analysis of normal esophagus revealed that the proportion of Clostridium was 8.3 %, while that of Lactobacillales was 71.8 %. The proportions of Clostridium increased and that of Lactobacillales decreased at 8 weeks in both groups. Such changes were consistently observed in the control but not in the rebamipide group. Clostridium and Lactobacillus expression was lower and higher, respectively, in the rebamipide group than in the control group. CONCLUSIONS Rebamipide reduced BE development and altered the esophageal microbiome composition, which might play a role in BE development.
Collapse
|
40
|
Lörinc E, Mellblom L, Öberg S. The immunophenotypic relationship between the submucosal gland unit, columnar metaplasia and squamous islands in the columnar-lined oesophagus. Histopathology 2015; 67:792-8. [PMID: 25898799 DOI: 10.1111/his.12719] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2015] [Accepted: 04/17/2015] [Indexed: 11/28/2022]
Abstract
AIMS To characterize the immunophenotypic relationship between the squamous and the glandular compartments in the oesophagus of patients with columnar-lined oesophagus (CLO). METHODS AND RESULTS Eight tissue blocks from three oesophageal resection specimens from patients who underwent oesophagectomy for adenocarcinoma of the oesophagus were selected for immunohistochemical analysis. The markers of intestinal differentiation [CK20, CDX2 and MUC2] were all expressed in the expected pattern, solely in the glandular compartment of the resection specimens. CK4, CK17 and lysozyme were expressed in both the glandular and the squamous compartments. In addition, CK17 expression was found on both the squamous and glandular margins of the squamocolumnar transformation zones and in the submucosal gland (SMG) intraglandular and excretory ducts. CONCLUSIONS There is an immunophenotypic relationship between the squamous and the glandular compartments of the CLO, with expression of lysozyme, CK4 and CK17 in both squamous and columnar cells. These overlapping immunophenotypes indicate similar differentiation paths, and link the SMG unit with the columnar metaplasia and the neosquamous islands in CLO. Our findings support the theory of a cellular origin of CLO and neosquamous islands from the SMG unit.
Collapse
Affiliation(s)
- Ester Lörinc
- Department of Laboratory Medicine, Lund University, Malmö, Sweden
| | | | - Stefan Öberg
- Department of Surgery, Helsingborg Hospital, Clinical Sciences Lund, Lund University, Lund, Sweden
| |
Collapse
|
41
|
Nakata W, Nakai Y, Yoshida T, Sato M, Hatano K, Nagahara A, Fujita K, Uemura M, Nonomura N. Bone marrow-derived cells contribute to regeneration of injured prostate epithelium and stroma. Prostate 2015; 75:806-14. [PMID: 25663042 DOI: 10.1002/pros.22962] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/14/2014] [Accepted: 12/11/2014] [Indexed: 01/05/2023]
Abstract
BACKGROUND Recent studies have reported that bone marrow-derived cells (BMDCs), which are recruited to sites of tissue injury and inflammation, can differentiate into epithelial cells, such as liver, lung, gastrointestinal tract, and skin cells. We investigated the role of BMDCs in contributing to regeneration of injured prostate epithelium. METHODS Using chimera rats that received allogenic bone marrow grafts from green fluorescent protein (GFP) transgenic rats after lethal whole-body irradiation, we investigated the existence of epithelial marker-positive BMDCs in injured prostate tissue caused by transurethral injection of lipopolysaccharide. RESULTS Prostate tissues were harvested 2 weeks after transurethral lipopolysaccharide injection. Immunofluorescence staining showed that some cells in the stroma co-expressed GFP and pan-cytokeratin, which suggested the existence of epithelial marker-positive BMDCs. To confirm the existence of such cells, we collected bone marrow-derived non-hematopoietic cells (GFP+/CD45- cells) from the prostate by fluorescence-activated cell sorter analysis and analyzed the characteristics of the GFP+/CD45- cells. The number of cells in this population significantly increased from 0.042% to 0.492% compared with normal prostate tissue. We found by immunofluorescent analysis and RT-PCR that GFP+/CD45- cells expressed cytokeratin, which suggested that these cells have some features of epithelial cells. In the prostate obtained from the chimera rats 34 weeks after lipopolysaccharide injection, GFP- and cytokeratin-positive cells were observed in the prostate gland, which suggested that some of the cells in the prostate gland regenerated after prostate inflammation derived from bone marrow. CONCLUSIONS BMDCs might be able to differentiate into prostate epithelial cells after prostatic injury.
Collapse
Affiliation(s)
- Wataru Nakata
- Department of Urology, Osaka University Graduate School of Medicine, Osaka, Japan
| | | | | | | | | | | | | | | | | |
Collapse
|
42
|
Abstract
Barrett's esophagus (BE) is more common in developed countries. Endoscopic therapy is an effective treatment method in management of dysplastic BE. Ablation by thermal energy, freezing, or photochemical injury completely eradicates dysplasia and specialized intestinal metaplasia resulting in neosquamation of esophagus. Among the ablative modalities, radiofrequency ablation (RFA) is the most studied with safe, effective, and durable long-term outcomes. Cryotherapy, argon plasma coagulation, and photodynamic therapy can be offered in select patients when RFA is unavailable, has failed, or is contraindicated. Future research on natural disease progression, biomarkers, advanced imaging, and application of endoscopic techniques will lead to better clinical outcomes for BE-associated neoplasia.
Collapse
Affiliation(s)
- Shajan Peter
- Department of Gastroenterology, Basil I. Hirschowitz Endoscopic Centre of Endoscopic Excellence, University of Alabama at Birmingham, 6th Floor Jefferson Tower, 625 19th Street South, Birmingham, AL 35249, USA.
| | - Klaus Mönkemüller
- Department of Gastroenterology, Basil I. Hirschowitz Endoscopic Centre of Endoscopic Excellence, University of Alabama at Birmingham, 6th Floor Jefferson Tower, 625 19th Street South, Birmingham, AL 35249, USA
| |
Collapse
|
43
|
Abstract
This article focuses on recent findings on the molecular mechanisms involved in esophageal columnar metaplasia. Signaling pathways and their downstream targets activate specific transcription factors leading to the expression of columnar and the more specific intestinal-type of genes, which gives rise to Barrett metaplasia. Several animal models have been generated to validate and study these distinct molecular pathways but also to identify the Barrett progenitor cell. Currently, the many aspects involved in the development of esophageal metaplasia that have been elucidated can serve to develop novel molecular therapies to improve treatment or prevent metaplasia. Nevertheless, several key events are still poorly understood and require further investigation.
Collapse
Affiliation(s)
- Kausilia K Krishnadath
- Department of Gastroenterology and Hepatology, Academic Medical Center, Meibergdreef 9, Amsterdam 1105 AZ, The Netherlands.
| | | |
Collapse
|
44
|
Máté M, Molnár B. A relation between cell cycle and intestinal metaplasia in oesophageal biopsies using optical and digital microscopy. Pathol Oncol Res 2015; 21:669-73. [PMID: 25740071 DOI: 10.1007/s12253-014-9873-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/21/2014] [Accepted: 11/25/2014] [Indexed: 01/20/2023]
Abstract
Protein expression changes in relation to cell cycles provide important information, and it may represent a new method for an early diagnosis of metaplasia - dysplasia - adenocarcinoma sequence. We investigated potential changes in cell cycle genes such as protooncogenes (PCNA, EGFR), tumour suppressor gene (p53), apoptotic TUNNEL (Tdt mediated dUTP nick and labelling) gene, as well as small intestinal mucus antigen (SIMA) and large intestinal mucus antigen (LIMA), which accumulates in metaplastic epithelium due to the inflammatory process in routine oesophageal biopsies using immunohistochemistry. Oesophageal biopsies were taken from patients with Barrett's oesophagus (n = 30), reflux oesophagitis (n = 30), healthy oesophagus (n = 30) and healthy cardia (n = 10). Immunohistochemical signalling was carried out by Streptavidin-Biotin-AEC (aminoetil-carbazol). Expression of PCNA was statistically significantly lower in healthy oesophagus (p < 0.05) versus reflux oesophagitis and Barrett's oesophagus. However, no significant change was detected in the expression of SIMA and LIMA in intestinal metaplasia. Further, EGFR, p53 and TUNNEL levels were significantly different in healthy versus Barrett's oesophagus. Manual counting using virtual microscopy was comparable with the result using conventional light microscopy, but the former is significantly quicker. There was no difference between manual and automated cell counting (p > 0.05).
Collapse
Affiliation(s)
- Miklós Máté
- Surgical Department, Saint Emerich Hospital Budapest, Budapest, Hungary,
| | | |
Collapse
|
45
|
Abstract
Barrett oesophagus develops when the lower oesophageal squamous epithelium is replaced with columnar epithelium, which shows both intestinal and gastric differentiation. No consensus has been reached on the origin of Barrett oesophagus. Theories include a direct origin from the oesophageal-stratified squamous epithelium, or by proximal migration of the gastric cardiac epithelium with subsequent intestinalization. Variations of this theory suggest the origin is a distinctive cell at the squamocolumnar junction, the oesophageal gland ducts, or circulating bone-marrow-derived cells. Much of the supporting evidence comes from experimental models and not from studies of Barrett mucosa. In this Perspectives article, we look at the Barrett lesion itself: at its phenotype, its complexity, its clonal architecture and its stem cell organization. We conclude that Barrett glands are unique structures, but share many similarities with gastric glands undergoing the process of intestinal metaplasia. We conclude that current evidence most strongly supports an origin from stem cells in the cardia.
Collapse
Affiliation(s)
- Stuart A C McDonald
- Centre for Tumour Biology, Barts Cancer Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London EC1 2AD, UK
| | - Danielle Lavery
- Centre for Tumour Biology, Barts Cancer Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London EC1 2AD, UK
| | - Nicholas A Wright
- Centre for Tumour Biology, Barts Cancer Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London EC1 2AD, UK
| | - Marnix Jansen
- Centre for Tumour Biology, Barts Cancer Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London EC1 2AD, UK
| |
Collapse
|
46
|
Baruah A, Buttar N, Chandra R, Chen X, Clemons NJ, Compare D, El-Rifai W, Gu J, Houchen CW, Koh SY, Li W, Nardone G, Phillips WA, Sharma A, Singh I, Upton MP, Vega KJ, Wu X. Translational research on Barrett's esophagus. Ann N Y Acad Sci 2014; 1325:170-86. [DOI: 10.1111/nyas.12531] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Anushka Baruah
- Division of Gastroenterology & Hepatology; Mayo Clinic College of Medicine; Rochester Minnesota
| | - Navtej Buttar
- Division of Gastroenterology & Hepatology; Mayo Clinic College of Medicine; Rochester Minnesota
| | - Raghav Chandra
- Division of Gastroenterology & Hepatology; Mayo Clinic College of Medicine; Rochester Minnesota
| | - Xiaoxin Chen
- Cancer Research Program, JLC-BBRI; North Carolina Central University; Durham North Carolina
- Center for Esophageal Disease and Swallowing, Division of Gastroenterology and Hepatology, Department of Medicine; University of North Carolina at Chapel Hill; Chapel Hill North Carolina
| | - Nicholas J. Clemons
- Surgical Oncology Research Laboratory; Peter MacCallum Cancer Centre; East Melbourne Australia
- Department of Surgery (St. Vincent's Hospital); University of Melbourne; Melbourne Australia
- Sir Peter MacCallum Department of Oncology; University of Melbourne; Melbourne Australia
| | - Debora Compare
- Department of Clinical Medicine and Surgery, Gastroenterology Unit; University Federico II; Naples Italy
| | - Wael El-Rifai
- Surgical Oncology Research; Vanderbilt University Medical Center; Nashville Tennessee
| | - Jian Gu
- Department of Epidemiology; The University of Texas MD Anderson Cancer Center; Houston Texas
| | - Courtney W. Houchen
- Division of Digestive Diseases and Nutrition; University of Oklahoma Health Sciences Center; Oklahoma City Oklahoma
| | - Shze Yung Koh
- Surgical Oncology Research Laboratory; Peter MacCallum Cancer Centre; East Melbourne Australia
- Department of Surgery (St. Vincent's Hospital); University of Melbourne; Melbourne Australia
| | - Wenbo Li
- Cancer Research Program, JLC-BBRI; North Carolina Central University; Durham North Carolina
- Department of Gastroenterology; General Hospital of Jinan Military Command; Jinan China
| | - Gerardo Nardone
- Department of Clinical Medicine and Surgery, Gastroenterology Unit; University Federico II; Naples Italy
| | - Wayne A. Phillips
- Surgical Oncology Research Laboratory; Peter MacCallum Cancer Centre; East Melbourne Australia
- Department of Surgery (St. Vincent's Hospital); University of Melbourne; Melbourne Australia
- Sir Peter MacCallum Department of Oncology; University of Melbourne; Melbourne Australia
| | - Anamay Sharma
- Division of Gastroenterology & Hepatology; Mayo Clinic College of Medicine; Rochester Minnesota
| | - Ishtpreet Singh
- Division of Gastroenterology & Hepatology; Mayo Clinic College of Medicine; Rochester Minnesota
| | - Melissa P. Upton
- Department of Pathology; University of Washington; Seattle Washington
| | - Kenneth J. Vega
- Division of Digestive Diseases and Nutrition; University of Oklahoma Health Sciences Center; Oklahoma City Oklahoma
| | - Xifeng Wu
- Department of Epidemiology; The University of Texas MD Anderson Cancer Center; Houston Texas
| |
Collapse
|
47
|
Affiliation(s)
- Stuart J Spechler
- From the Esophageal Diseases Center, Department of Medicine, Veterans Affairs (VA) North Texas Health Care System, and the University of Texas Southwestern Medical Center, Dallas
| | | |
Collapse
|
48
|
Abstract
Chronic inflammation has been identified as an important risk factor for the development of malignancy, and knowledge about its molecular and cellular mechanisms is increasing. Several chronic inflammatory diseases of the gastrointestinal tract are important as risk factors for malignancy and have been studied in detail. In this review, we summarize important molecular mechanisms in chronic inflammation and highlight established and potential links between chronic inflammation and gastrointestinal cancer. In addition, we present the role of chronic inflammation in numerous tumors within the gastrointestinal tract as well as the relevant pathways or epidemiologic observations linking the pathogenesis of these tumors to inflammation.
Collapse
Affiliation(s)
- Sebastian Rasch
- II Medizinische Klinik und Poliklinik, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
| | - Hana Algül
- II Medizinische Klinik und Poliklinik, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
| |
Collapse
|
49
|
Bessède E, Dubus P, Mégraud F, Varon C. Helicobacter pylori infection and stem cells at the origin of gastric cancer. Oncogene 2014; 34:2547-55. [DOI: 10.1038/onc.2014.187] [Citation(s) in RCA: 63] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2014] [Revised: 05/08/2014] [Accepted: 05/23/2014] [Indexed: 02/06/2023]
|
50
|
Shan J, Oshima T, Farre R, Fukui H, Watari J, Miwa H. IL-4 induces columnar-like differentiation of esophageal squamous epithelium through JAK/PI3K pathway: possible role in pathogenesis of Barrett's esophagus. Am J Physiol Gastrointest Liver Physiol 2014; 306:G641-9. [PMID: 24578343 DOI: 10.1152/ajpgi.00386.2013] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Barrett's esophagus is characterized by a distinct Th2-predominant cytokine profile (IL-4) from in vivo or ex vivo evidence. The detailed role of cytokines in Barrett's esophagus, particularly whether Th2 cytokines are causative factors driving metaplastic processes, remains unknown. In this study, air-liquid interface-cultured human esophageal epithelial cells were stimulated by a Th2 cytokine, IL-4, and Th1 cytokines, TNF-α and IL-1β, continuously for 10 days. Barrier function was determined by transepithelial electrical resistance. Morphological changes were investigated by hematoxylin and eosin staining. Keratin profile (keratin 7, 8, 13, and 14) and squamous differentiation markers (involucrin) were investigated by RT-quantitative PCR, Western blotting, and immunohistochemical staining. Pharmacological inhibitors were used to identify the underlying cellular signaling. We report that IL-4, TNF-α, and IL-1β decrease barrier function, but only IL-4 significantly increases cell layers and changes cell morphology. IL-4 time dependently downregulates the expression levels of the squamous cell markers involucrin and keratin 13 and upregulates the expression levels of the columnar cell markers keratin 7 and 8. Neither TNF-α nor IL-1β shows any effect on these indexes. JAK inhibitor I and PI3K inhibitors significantly block the IL-4-induced changes in the levels of keratin 8 and 13. In conclusion, IL-4 inhibits squamous differentiation program of esophageal epithelial cells and induces differentiation toward columnar cells through the JAK/PI3K pathway. Thus IL-4 may be involved in the early stages of Barrett's esophagus development.
Collapse
Affiliation(s)
- Jing Shan
- Division of Upper Gastroenterology, Department of Internal Medicine, Hyogo College of Medicine, Nishinomiya, Japan
| | | | | | | | | | | |
Collapse
|