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Guo M, Wang T, Ge W, Ren C, Ko BCB, Zeng X, Cao D. Role of AKR1B10 in inflammatory diseases. Scand J Immunol 2024; 100:e13390. [PMID: 38769661 DOI: 10.1111/sji.13390] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Revised: 05/01/2024] [Accepted: 05/05/2024] [Indexed: 05/22/2024]
Abstract
Inflammation is an important pathophysiological process in many diseases; it has beneficial and harmful effects. When exposed to various stimuli, the body triggers an inflammatory response to eliminate invaded pathogens and damaged tissues to maintain homeostasis. However, uncontrollable persistent or excessive inflammatory responses may damage tissues and induce various diseases, such as metabolic diseases (e.g. diabetes), autoimmune diseases, nervous system-related diseases, digestive system-related diseases, and even tumours. Aldo-keto reductase 1B10 (AKR1B10) is an important player in the development and progression of multiple diseases, such as tumours and inflammatory diseases. AKR1B10 is upregulated in solid tumours, such as hepatocellular carcinoma (HCC), non-small cell lung carcinoma, and breast cancer, and is a reliable serum marker. However, information on the role of AKR1B10 in inflammation is limited. In this study, we summarized the role of AKR1B10 in inflammatory diseases, including its expression, functional contribution to inflammatory responses, and regulation of signalling pathways related to inflammation. We also discussed the role of AKR1B10 in glucose and lipid metabolism and oxidative stress. This study provides novel information and increases the understanding of clinical inflammatory diseases.
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Affiliation(s)
- Min Guo
- Hunan Province Key Laboratory of Tumor Cellular & Molecular Pathology, Cancer Research Institute, Hengyang Medical School, University of South China, Hengyang, Hunan, China
| | - Tao Wang
- Hunan Province Key Laboratory of Tumor Cellular & Molecular Pathology, Cancer Research Institute, Hengyang Medical School, University of South China, Hengyang, Hunan, China
| | - Wenjun Ge
- Hunan Province Key Laboratory of Tumor Cellular & Molecular Pathology, Cancer Research Institute, Hengyang Medical School, University of South China, Hengyang, Hunan, China
| | - Chenran Ren
- Hunan Province Key Laboratory of Tumor Cellular & Molecular Pathology, Cancer Research Institute, Hengyang Medical School, University of South China, Hengyang, Hunan, China
| | - Ben Chi-Bun Ko
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hong Kong, China
| | - Xi Zeng
- Hunan Province Key Laboratory of Tumor Cellular & Molecular Pathology, Cancer Research Institute, Hengyang Medical School, University of South China, Hengyang, Hunan, China
| | - Deliang Cao
- Hunan Province Key Laboratory of Tumor Cellular & Molecular Pathology, Cancer Research Institute, Hengyang Medical School, University of South China, Hengyang, Hunan, China
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Kasturirangan S, Nancarrow DJ, Shah A, Lagisetty KH, Lawrence TS, Beer DG, Ray D. Isoform alterations in the ubiquitination machinery impacting gastrointestinal malignancies. Cell Death Dis 2024; 15:194. [PMID: 38453895 PMCID: PMC10920915 DOI: 10.1038/s41419-024-06575-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Revised: 02/19/2024] [Accepted: 02/23/2024] [Indexed: 03/09/2024]
Abstract
The advancement of RNAseq and isoform-specific expression platforms has led to the understanding that isoform changes can alter molecular signaling to promote tumorigenesis. An active area in cancer research is uncovering the roles of ubiquitination on spliceosome assembly contributing to transcript diversity and expression of alternative isoforms. However, the effects of isoform changes on functionality of ubiquitination machineries (E1, E2, E3, E4, and deubiquitinating (DUB) enzymes) influencing onco- and tumor suppressor protein stabilities is currently understudied. Characterizing these changes could be instrumental in improving cancer outcomes via the identification of novel biomarkers and targetable signaling pathways. In this review, we focus on highlighting reported examples of direct, protein-coded isoform variation of ubiquitination enzymes influencing cancer development and progression in gastrointestinal (GI) malignancies. We have used a semi-automated system for identifying relevant literature and applied established systems for isoform categorization and functional classification to help structure literature findings. The results are a comprehensive snapshot of known isoform changes that are significant to GI cancers, and a framework for readers to use to address isoform variation in their own research. One of the key findings is the potential influence that isoforms of the ubiquitination machinery have on oncoprotein stability.
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Affiliation(s)
| | - Derek J Nancarrow
- Surgery - Section of Thoracic Surgery, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Ayush Shah
- Departments of Radiation Oncology, University of Michigan, Ann Arbor, MI, 48109, USA
- Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA, USA
| | - Kiran H Lagisetty
- Surgery - Section of Thoracic Surgery, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Theodore S Lawrence
- Departments of Radiation Oncology, University of Michigan, Ann Arbor, MI, 48109, USA
| | - David G Beer
- Surgery - Section of Thoracic Surgery, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Dipankar Ray
- Departments of Radiation Oncology, University of Michigan, Ann Arbor, MI, 48109, USA.
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Chen L, Ballout F, Lu H, Hu T, Zhu S, Chen Z, Peng D. Differential Expression of NEK Kinase Family Members in Esophageal Adenocarcinoma and Barrett's Esophagus. Cancers (Basel) 2023; 15:4821. [PMID: 37835513 PMCID: PMC10571661 DOI: 10.3390/cancers15194821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Revised: 09/20/2023] [Accepted: 09/28/2023] [Indexed: 10/15/2023] Open
Abstract
The incidence of esophageal adenocarcinoma (EAC) has risen rapidly during the past four decades, making it the most common type of esophageal cancer in the USA and Western countries. The NEK (Never in mitosis A (NIMA) related kinase) gene family is a group of serine/threonine kinases with 11 members. Aberrant expression of NEKs has been recently found in a variety of human cancers and plays important roles in tumorigenesis, progression, and drug-resistance. However, the expression of the NEKs in EAC and its precancerous condition (Barrett's esophagus, BE) has not been investigated. In the present study, we first analyzed the TCGA and 9 GEO databases (a total of 10 databases in which 8 contain EAC and 6 contain BE) using bioinformatic approaches for NEKs expression in EAC and BE. We identified that several NEK members, such as NEK2 (7/8), NEK3 (6/8), and NEK6 (6/8), were significantly upregulated in EAC as compared to normal esophagus samples. Alternatively, NEK1 was downregulated in EAC as compared to the normal esophagus. On the contrary, genomic alterations of these NEKs are not frequent in EAC. We validated the above findings using qRT-PCR and the protein expression of NEKs in EAC cell lines using Western blotting and in primary EAC tissues using immunohistochemistry and immunofluorescence. Our data suggest that frequent upregulation of NEK2, NEK3, and NEK7 may be important in EAC.
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Affiliation(s)
- Lei Chen
- Department of Surgery, Miller School of Medicine, University of Miami, Miami, FL 33136, USA; (L.C.); (F.B.); (H.L.); (T.H.); (S.Z.); (Z.C.)
| | - Farah Ballout
- Department of Surgery, Miller School of Medicine, University of Miami, Miami, FL 33136, USA; (L.C.); (F.B.); (H.L.); (T.H.); (S.Z.); (Z.C.)
| | - Heng Lu
- Department of Surgery, Miller School of Medicine, University of Miami, Miami, FL 33136, USA; (L.C.); (F.B.); (H.L.); (T.H.); (S.Z.); (Z.C.)
- Sylvester Comprehensive Cancer Center, Miami, FL 33136, USA
| | - Tianling Hu
- Department of Surgery, Miller School of Medicine, University of Miami, Miami, FL 33136, USA; (L.C.); (F.B.); (H.L.); (T.H.); (S.Z.); (Z.C.)
| | - Shoumin Zhu
- Department of Surgery, Miller School of Medicine, University of Miami, Miami, FL 33136, USA; (L.C.); (F.B.); (H.L.); (T.H.); (S.Z.); (Z.C.)
| | - Zheng Chen
- Department of Surgery, Miller School of Medicine, University of Miami, Miami, FL 33136, USA; (L.C.); (F.B.); (H.L.); (T.H.); (S.Z.); (Z.C.)
- Sylvester Comprehensive Cancer Center, Miami, FL 33136, USA
| | - Dunfa Peng
- Department of Surgery, Miller School of Medicine, University of Miami, Miami, FL 33136, USA; (L.C.); (F.B.); (H.L.); (T.H.); (S.Z.); (Z.C.)
- Sylvester Comprehensive Cancer Center, Miami, FL 33136, USA
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Boisteau E, Posseme C, Di Modugno F, Edeline J, Coulouarn C, Hrstka R, Martisova A, Delom F, Treton X, Eriksson LA, Chevet E, Lièvre A, Ogier-Denis E. Anterior gradient proteins in gastrointestinal cancers: from cell biology to pathophysiology. Oncogene 2022; 41:4673-4685. [PMID: 36068336 DOI: 10.1038/s41388-022-02452-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Revised: 08/03/2022] [Accepted: 08/23/2022] [Indexed: 11/09/2022]
Abstract
Most of the organs of the digestive tract comprise secretory epithelia that require specialized molecular machines to achieve their functions. As such anterior gradient (AGR) proteins, which comprise AGR1, AGR2, and AGR3, belong to the protein disulfide isomerase family, and are involved in secretory and transmembrane protein biogenesis in the endoplasmic reticulum. They are generally expressed in epithelial cells with high levels in most of the digestive tract epithelia. To date, the vast majority of the reports concern AGR2, which has been shown to exhibit various subcellular localizations and exert pro-oncogenic functions. AGR2 overexpression has recently been associated with a poor prognosis in digestive cancers. AGR2 is also involved in epithelial homeostasis. Its deletion in mice results in severe diffuse gut inflammation, whereas in inflammatory bowel diseases, the secretion of AGR2 in the extracellular milieu participates in the reshaping of the cellular microenvironment. AGR2 thus plays a key role in inflammation and oncogenesis and may represent a therapeutic target of interest. In this review, we summarize the already known roles and mechanisms of action of the AGR family proteins in digestive diseases, their expression in the healthy digestive tract, and in digestive oncology. At last, we discuss the potential diagnostic and therapeutic implications underlying the biology of AGR proteins.
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Affiliation(s)
- Emeric Boisteau
- INSERM U1242, University of Rennes, Rennes, France.,Department of Gastroenterology, University Hospital Pontchaillou, University of Rennes, Rennes, France
| | - Céline Posseme
- INSERM U1242, University of Rennes, Rennes, France.,Centre de Lutte Contre le Cancer Eugène Marquis, Rennes, France
| | - Federico Di Modugno
- INSERM U1242, University of Rennes, Rennes, France.,Centre de Lutte Contre le Cancer Eugène Marquis, Rennes, France
| | - Julien Edeline
- INSERM U1242, University of Rennes, Rennes, France.,Centre de Lutte Contre le Cancer Eugène Marquis, Rennes, France
| | | | - Roman Hrstka
- Regional Centre for Applied Molecular Oncology, Masaryk Memorial Cancer Institute, Brno, Czech Republic
| | - Andrea Martisova
- Regional Centre for Applied Molecular Oncology, Masaryk Memorial Cancer Institute, Brno, Czech Republic.,National Centre for Biomolecular Research, Faculty of Science, Masaryk University, Brno, Czech Republic
| | | | - Xavier Treton
- Assistance Publique-Hôpitaux de Paris, University of Paris, Clichy, France
| | - Leif A Eriksson
- Department of Chemistry and Molecular Biology, University of Gothenburg, Göteborg, Sweden
| | - Eric Chevet
- INSERM U1242, University of Rennes, Rennes, France. .,Centre de Lutte Contre le Cancer Eugène Marquis, Rennes, France.
| | - Astrid Lièvre
- INSERM U1242, University of Rennes, Rennes, France. .,Department of Gastroenterology, University Hospital Pontchaillou, University of Rennes, Rennes, France.
| | - Eric Ogier-Denis
- INSERM U1242, University of Rennes, Rennes, France. .,Centre de Lutte Contre le Cancer Eugène Marquis, Rennes, France.
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Pilot Study Showing Feasibility of Phosphoproteomic Profiling of Pathway-Level Molecular Alterations in Barrett’s Esophagus. Genes (Basel) 2022; 13:genes13071215. [PMID: 35885999 PMCID: PMC9325186 DOI: 10.3390/genes13071215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Revised: 06/25/2022] [Accepted: 07/05/2022] [Indexed: 11/17/2022] Open
Abstract
(1) Background: Barrett’s esophagus is a major risk factor for esophageal adenocarcinoma. In this pilot study, we employed precision mass spectrometry to map global (phospho)protein perturbations in Barrett’s esophagus lesions and adjacent normal tissue to glean insights into disease progression. (2) Methods: Biopsies were collected from two small but independent cohorts. Comparative analyses were performed between Barrett’s esophagus samples and adjacent matched (normal) tissues from patients with known pathology, while specimens from healthy patients served as additional controls. (3) Results: We identified and quantified 6810 proteins and 6395 phosphosites in the discovery cohort, revealing hundreds of statistically significant differences in protein abundances and phosphorylation states. We identified a robust proteomic signature that accurately classified the disease status of samples from the independent patient cohorts. Pathway-level analysis of the phosphoproteomic profiles revealed the dysregulation of specific cellular processes, including DNA repair, in Barrett’s esophagus relative to paired controls. Comparative analysis with previously published transcriptomic profiles provided independent evidence in support of these preliminary findings. (4) Conclusions: This pilot study establishes the feasibility of using unbiased quantitative phosphoproteomics to identify molecular perturbations associated with disease progression in Barrett’s esophagus to define potentially clinically actionable targets warranting further assessment.
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Li X, Zhang J, Wu Y, Ma C, Wei D, Pan L, Cai L. IGFBP7 remodels the tumor microenvironment of esophageal squamous cell carcinoma by activating the TGFβ1/SMAD signaling pathway. Oncol Lett 2022; 24:251. [PMID: 35761941 PMCID: PMC9214703 DOI: 10.3892/ol.2022.13371] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Accepted: 05/25/2022] [Indexed: 01/03/2023] Open
Abstract
Esophageal squamous cell carcinoma (ESCC) is the most common type of esophageal cancer, and its development, growth, and invasiveness are regulated by the tumor microenvironment (TME). Insulin-like growth factor-binding protein-7 (IGFBP7), which is closely related to various tumors, transforming growth factor-β1 (TGFβ1), which is a key signal mediator in oncogenesis, α-smooth muscle actin (α-SMA), and collagen I are important components of the TME. IGFBP7 can upregulate the expression of TGFβ1 and activate the TGFβ1/SMAD signaling pathway, which leads to an increase in collagen I in hepatic stellate cells (HSCs). However, the contribution of IGFBP7 to TGFβ1 and the TME in the progression of ESCC remains unknown. In the present study, we investigated IGFBP7 expression and its effects on TGFβ1 and the TME in ESCC. A total of 45 patients were divided into three groups: early-tumor group (n=15), advanced-tumor group (n=15), and paracancer control group (n=15). The EC109 cell line was cultured and treated with AdIGFBP7 and LvshTGFβ1, and the expression levels of IGFBP7, TGFβ1, α-SMA, collagen I, and p-SMAD2/3 were determined by immunohistochemical staining and western blotting analysis. IGFBP7, TGFβ1, α-SMA, and collagen I were upregulated in the ESCC samples compared with the control samples (P<0.05), and the values peaked in the advanced-tumor group (P<0.05). Compared with the control group, the TGFβ1, α-SMA, p-SMAD2/3, and collagen I proteins were gradually increased from 24 to 72 h in the EC109 cells treated with AdIGFBP7 (P<0.05). Inhibition of TGFβ1 expression in the EC109 cells treated with AdIGFBP7 gradually reduced the expression of α-SMA, collagen I, and p-SMAD2/3 from 24 to 72 h (P<0.05). These findings suggest that increased IGFBP7 may accelerate the progression of ESCC by upregulating TGFβ1, α-SMA, and collagen I via activating the TGFβ1/SMAD signaling pathway, which could remodel the TME.
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Affiliation(s)
- Xiuqing Li
- Department of Gastroenterology and Hepatology, Suzhou Xiangcheng People's Hospital, Suzhou, Jiangsu 215100, P.R. China
| | - Ji Zhang
- Department of Gastroenterology and Hepatology, Yangzhou University Medical College, Yangzhou, Jiangsu 225001, P.R. China
| | - Youshan Wu
- Department of Gastroenterology and Hepatology, Affiliated Lianyungang Oriental Hospital of Xuzhou Medical University, Lianyungang, Jiangsu 222042, P.R. China
| | - Chuntao Ma
- Department of Gastroenterology and Hepatology, Suzhou Xiangcheng People's Hospital, Suzhou, Jiangsu 215100, P.R. China
| | - Dongying Wei
- Department of Gastroenterology and Hepatology, Affiliated Lianyungang Oriental Hospital of Xuzhou Medical University, Lianyungang, Jiangsu 222042, P.R. China
| | - Lijuan Pan
- Department of Gastroenterology and Hepatology, Affiliated Lianyungang Oriental Hospital of Xuzhou Medical University, Lianyungang, Jiangsu 222042, P.R. China
| | - Liangliang Cai
- Department of Gastrointestinal and Anus Surgery, The First Affiliated Hospital of Guangxi University of Traditional Chinese Medicine, Nanning, Guangxi 530012, P.R. China,Correspondence to: Dr Liangliang Cai, Department of Gastrointestinal and Anus Surgery, The First Affiliated Hospital of Guangxi University of Traditional Chinese Medicine, 89-9 Dongge Road, Nanning, Guangxi 530012, P.R. China, E-mail:
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7
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Webster JA, Wuethrich A, Shanmugasundaram KB, Richards RS, Zelek WM, Shah AK, Gordon LG, Kendall BJ, Hartel G, Morgan BP, Trau M, Hill MM. Development of EndoScreen Chip, a Microfluidic Pre-Endoscopy Triage Test for Esophageal Adenocarcinoma. Cancers (Basel) 2021; 13:2865. [PMID: 34201241 PMCID: PMC8229863 DOI: 10.3390/cancers13122865] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Revised: 06/03/2021] [Accepted: 06/03/2021] [Indexed: 12/11/2022] Open
Abstract
The current endoscopy and biopsy diagnosis of esophageal adenocarcinoma (EAC) and its premalignant condition Barrett's esophagus (BE) is not cost-effective. To enable EAC screening and patient triaging for endoscopy, we developed a microfluidic lectin immunoassay, the EndoScreen Chip, which allows sensitive multiplex serum biomarker measurements. Here, we report the proof-of-concept deployment for the EAC biomarker Jacalin lectin binding complement C9 (JAC-C9), which we previously discovered and validated by mass spectrometry. A monoclonal C9 antibody (m26 3C9) was generated and validated in microplate ELISA, and then deployed for JAC-C9 measurement on EndoScreen Chip. Cohort evaluation (n = 46) confirmed the expected elevation of serum JAC-C9 in EAC, along with elevated total serum C9 level. Next, we asked if the small panel of serum biomarkers improves detection of EAC in this cohort when used in conjunction with patient risk factors (age, body mass index and heartburn history). Using logistic regression modeling, we found that serum C9 and JAC-C9 significantly improved EAC prediction from AUROC of 0.838 to 0.931, with JAC-C9 strongly predictive of EAC (vs. BE OR = 4.6, 95% CI: 1.6-15.6, p = 0.014; vs. Healthy OR = 4.1, 95% CI: 1.2-13.7, p = 0.024). This proof-of-concept study confirms the microfluidic EndoScreen Chip technology and supports the potential utility of blood biomarkers in improving triaging for diagnostic endoscopy. Future work will expand the number of markers on EndoScreen Chip from our list of validated EAC biomarkers.
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Affiliation(s)
- Julie A. Webster
- QIMR Berghofer Medical Research Institute, Herston, QLD 4006, Australia; (J.A.W.); (R.S.R.); (A.K.S.); (L.G.G.); (B.J.K.); (G.H.)
| | - Alain Wuethrich
- Centre for Personalised Nanomedicine, Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, Brisbane City, QLD 4072, Australia; (A.W.); (K.B.S.); (M.T.)
| | - Karthik B. Shanmugasundaram
- Centre for Personalised Nanomedicine, Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, Brisbane City, QLD 4072, Australia; (A.W.); (K.B.S.); (M.T.)
| | - Renee S. Richards
- QIMR Berghofer Medical Research Institute, Herston, QLD 4006, Australia; (J.A.W.); (R.S.R.); (A.K.S.); (L.G.G.); (B.J.K.); (G.H.)
| | - Wioleta M. Zelek
- Division of Infection and Immunity, Cardiff University, Heath Park, Cardiff CF10 3AX, UK; (W.M.Z.); (B.P.M.)
| | - Alok K. Shah
- QIMR Berghofer Medical Research Institute, Herston, QLD 4006, Australia; (J.A.W.); (R.S.R.); (A.K.S.); (L.G.G.); (B.J.K.); (G.H.)
| | - Louisa G. Gordon
- QIMR Berghofer Medical Research Institute, Herston, QLD 4006, Australia; (J.A.W.); (R.S.R.); (A.K.S.); (L.G.G.); (B.J.K.); (G.H.)
| | - Bradley J. Kendall
- QIMR Berghofer Medical Research Institute, Herston, QLD 4006, Australia; (J.A.W.); (R.S.R.); (A.K.S.); (L.G.G.); (B.J.K.); (G.H.)
- Faculty of Medicine, The University of Queensland, Herston, Brisbane, QLD 4102, Australia
- Department of Gastroenterolgy and Hepatology, Princess Alexandra Hospital, Brisbane, QLD 4102, Australia
| | - Gunter Hartel
- QIMR Berghofer Medical Research Institute, Herston, QLD 4006, Australia; (J.A.W.); (R.S.R.); (A.K.S.); (L.G.G.); (B.J.K.); (G.H.)
| | - B. Paul Morgan
- Division of Infection and Immunity, Cardiff University, Heath Park, Cardiff CF10 3AX, UK; (W.M.Z.); (B.P.M.)
| | - Matt Trau
- Centre for Personalised Nanomedicine, Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, Brisbane City, QLD 4072, Australia; (A.W.); (K.B.S.); (M.T.)
- School of Chemistry and Molecular Biosciences, The University of Queensland, St Lucia, QLD 4072, Australia
| | - Michelle M. Hill
- QIMR Berghofer Medical Research Institute, Herston, QLD 4006, Australia; (J.A.W.); (R.S.R.); (A.K.S.); (L.G.G.); (B.J.K.); (G.H.)
- Faculty of Medicine, The University of Queensland, Herston, Brisbane, QLD 4102, Australia
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Endo S, Matsunaga T, Nishinaka T. The Role of AKR1B10 in Physiology and Pathophysiology. Metabolites 2021; 11:332. [PMID: 34063865 PMCID: PMC8224097 DOI: 10.3390/metabo11060332] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Revised: 05/17/2021] [Accepted: 05/19/2021] [Indexed: 12/16/2022] Open
Abstract
AKR1B10 is a human nicotinamide adenine dinucleotide phosphate (NADPH)-dependent reductase belonging to the aldo-keto reductase (AKR) 1B subfamily. It catalyzes the reduction of aldehydes, some ketones and quinones, and interacts with acetyl-CoA carboxylase and heat shock protein 90α. The enzyme is highly expressed in epithelial cells of the stomach and intestine, but down-regulated in gastrointestinal cancers and inflammatory bowel diseases. In contrast, AKR1B10 expression is low in other tissues, where the enzyme is upregulated in cancers, as well as in non-alcoholic fatty liver disease and several skin diseases. In addition, the enzyme's expression is elevated in cancer cells resistant to clinical anti-cancer drugs. Thus, growing evidence supports AKR1B10 as a potential target for diagnosing and treating these diseases. Herein, we reviewed the literature on the roles of AKR1B10 in a healthy gastrointestinal tract, the development and progression of cancers and acquired chemoresistance, in addition to its gene regulation, functions, and inhibitors.
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Affiliation(s)
- Satoshi Endo
- Laboratory of Biochemistry, Gifu Pharmaceutical University, Gifu 501-1196, Japan
| | - Toshiyuki Matsunaga
- Education Center of Green Pharmaceutical Sciences, Gifu Pharmaceutical University, Gifu 502-8585, Japan;
| | - Toru Nishinaka
- Laboratory of Biochemistry, Faculty of Pharmacy, Osaka Ohtani University, Tondabayashi 584-8540, Osaka, Japan;
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Mortezaei Z, Khosravi A. New potential anticancer drug-like compounds for squamous cell lung cancer using transcriptome network analysis. INFORMATICS IN MEDICINE UNLOCKED 2021. [DOI: 10.1016/j.imu.2021.100599] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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10
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Zhang ZF, Huang TJ, Zhang XK, Xie YJ, Lin ST, Luo FF, Meng DF, Hu H, Wang J, Peng LX, Qian CN, Cheng C, Huang BJ. AKR1C2 acts as a targetable oncogene in esophageal squamous cell carcinoma via activating PI3K/AKT signaling pathway. J Cell Mol Med 2020; 24:9999-10012. [PMID: 32678482 PMCID: PMC7520259 DOI: 10.1111/jcmm.15604] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Revised: 05/11/2020] [Accepted: 06/08/2020] [Indexed: 12/14/2022] Open
Abstract
The aldo-keto reductases family 1 member C2 (AKR1C2) has critical roles in the tumorigenesis and progression of malignant tumours. However, it was also discovered to have ambiguous functions in multiple cancers and till present, its clinical significance and molecular mechanism in oesophageal squamous cell carcinoma (ESCC) has been unclear. The aim of this study was to explore the role of AKR1C2 in the tumorigenesis of ESCC. Here, we showed that AKR1C2 expression was found to be up-regulated in ESCC tissues and was significantly associated with pathological stage, lymph node metastasis and worse outcomes. Functional assays demonstrated that an ectopic expression of AKR1C2 in ESCC cells resulted in increased proliferation, migration and cisplatin resistance, while knockdown led to inversing effects. Bioinformation analyses and mechanistic studies demonstrated that AKR1C2 activated the PI3K/AKT signalling pathway, furthermore, the inhibitor of PI3K or the selective inhibitor of AKR1C2 enzyme activity could reverse the aggressiveness and showed synergistic antitumour effect when combined with cisplatin, both in vitro and in vivo. In conclusion, Our findings revealed that AKR1C2 could function as an oncogene by activating the PI3K/AKT pathway, as a novel prognostic biomarker and/or as a potential therapeutic target to ESCC.
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Affiliation(s)
- Zhan-Fei Zhang
- Department of Thoracic Surgery, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Tie-Jun Huang
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-Sen University Cancer Center, Guangzhou, China
| | - Xin-Ke Zhang
- Department of Nuclear Medicine, The Second People's Hospital of Shenzhen, Shenzhen, China
| | - Yu-Jie Xie
- Department of Nasopharyngeal Carcinoma, Sun Yat-Sen University Cancer Center, Guangzhou, China
| | - Si-Ting Lin
- Department of Pathology, Sun Yat-Sen University Cancer Center, Guangzhou, China
| | - Fei-Fei Luo
- Department of Pathology, Sun Yat-Sen University Cancer Center, Guangzhou, China
| | - Dong-Fang Meng
- Department of Pathology, Sun Yat-Sen University Cancer Center, Guangzhou, China
| | - Hao Hu
- Department of Thoracic Surgery, The People's Hospital of Gaozhou, Maoming, China
| | - Jing Wang
- Department of Pathology, Sun Yat-Sen University Cancer Center, Guangzhou, China
| | - Li-Xia Peng
- Department of Pathology, Sun Yat-Sen University Cancer Center, Guangzhou, China
| | - Chao-Nan Qian
- Department of Experimental Research, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-Sen University Cancer Center, Guangzhou, China.,Department of Traditional Chinese Medicine, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China.,Department of Radiation Oncology, Guangzhou Concord Cancer Center, Guangzhou, China
| | - Chao Cheng
- Department of Thoracic Surgery, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Bi-Jun Huang
- Department of Pathology, Sun Yat-Sen University Cancer Center, Guangzhou, China
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11
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Liu R, Qian M, Zhou T, Cui P. TP53 mediated miR-3647-5p prevents progression of cervical carcinoma by targeting AGR2. Cancer Med 2019; 8:6095-6105. [PMID: 31436390 PMCID: PMC6792486 DOI: 10.1002/cam4.2507] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Revised: 07/31/2019] [Accepted: 08/07/2019] [Indexed: 12/14/2022] Open
Abstract
Previous studies have shown that miRNAs involved in a number of biological processes, such as cell growth, development, differentiation, and apoptosis. The dysregulation of miRNA expression is associated with various diseases, including cervical cancer. However, the involvement of miR-3647-5p in the progression of tumors is unclear. In this study, we confirmed that miR-3647-5p was down-regulated during cervical carcinogenesis and development, which was positively correlated with the prognosis of patients with cervical cancer. In addition, our study showed that miR-3647-5p can inhibit the proliferation of cervical cancer cells and promote apoptosis, suggesting that miR-3647-5p is involved in the development of cervical cancer as a tumor suppressor gene. Furthermore, we found that transcription factor TP53 could promote the expression of miR-3647-5p, suggesting that the dysfunction of miR-3647-5p in cervical cancer may be related to TP53. In addition, we also found that miR-3647-5p can inhibit the proliferation of cervical cancer cells and promote apoptosis by targeting AGR2. In summary, our research reveals that transcription factor TP53 promotes the expression of miR-3647-5p, while up-regulated miR-3647-5p targets AGR2, inhibiting cervical cancer cell proliferation and promoting apoptosis. Our study reveals the mechanism of TP53/miR-3647-5p/AGR2 axis in cervical cancer, which may be useful for targeted therapy of cervical cancer.
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Affiliation(s)
- Ronghua Liu
- Department of Obstetrics and Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Min Qian
- Department of Obstetrics and Gynecology, General Hospital of Eastern Theater Command, Nanjing, Jiangsu, China
| | - Ting Zhou
- Department of Obstetrics and Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Pengfei Cui
- Department of Obstetrics and Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
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12
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Bognár L, Vereczkei A, Papp A, Jancsó G, Horváth ÖP. Gastroesophageal Reflux Disease Might Induce Certain-Supposedly Adaptive-Changes in the Esophagus: A Hypothesis. Dig Dis Sci 2018; 63:2529-2535. [PMID: 29995182 DOI: 10.1007/s10620-018-5184-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2018] [Accepted: 06/25/2018] [Indexed: 12/13/2022]
Abstract
BACKGROUND The increasing prevalence of GERD has become a major concern due to its major health and economic impacts. Beyond the typical unpleasant symptoms, reflux can also be the source of severe, potentially life-threatening complications, such as aspiration. AIM Our aim was to support our hypothesis that the human body may in some cases develop various protective mechanisms to prevent these conditions. METHODS Based on our experiences and review of the literature, we investigated the potential adaptive nature of seven reflux complications (hypertensive lower esophageal sphincter, achalasia, hypertensive upper esophageal sphincter, Zenker's diverticulum, Schatzki's ring, esophageal web, and Barrett's esophagus). RESULTS Patients with progressive GERD may develop diverse structural and functional esophageal changes that narrow the lumen of the esophagus and therefore reduce the risk of regurgitation and protect the upper aerodigestive tract from aspiration. The functional changes (hypertensive lower esophageal sphincter, achalasia, hypertensive upper esophageal sphincter) seem to be adaptive reactions aimed at easing the unpleasant symptoms and reducing acid regurgitation. The structural changes (Schatzki's ring, esophageal web) result in very similar outcomes, but we consider these are rather secondary consequences and not real adaptive mechanisms. Barrett's esophagus is a special form of adaptive protection. In these cases, patients report significant relief of their previous heartburn as Barrett's esophagus develops because of the replacement of the normal squamous epithelium of the esophagus by acid-resistant metaplastic epithelium. CONCLUSION We believe that GERD may induce different self-protective reactions in the esophagus that result in reduced acid regurgitation or decreased reflux symptoms.
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Affiliation(s)
- Laura Bognár
- Department of Surgery, Clinical Center, University of Pécs, Medical School, 13 Ifjúság útja, Pecs, 7624, Hungary. .,Department of Surgical Research and Techniques, University of Pécs, Medical School, 12 Szigeti út, Pecs, 7624, Hungary.
| | - András Vereczkei
- Department of Surgery, Clinical Center, University of Pécs, Medical School, 13 Ifjúság útja, Pecs, 7624, Hungary
| | - András Papp
- Department of Surgery, Clinical Center, University of Pécs, Medical School, 13 Ifjúság útja, Pecs, 7624, Hungary
| | - Gábor Jancsó
- Department of Surgical Research and Techniques, University of Pécs, Medical School, 12 Szigeti út, Pecs, 7624, Hungary
| | - Örs Péter Horváth
- Department of Surgery, Clinical Center, University of Pécs, Medical School, 13 Ifjúság útja, Pecs, 7624, Hungary
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13
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de Souza LA, Palm C, Mendel R, Hook C, Ebigbo A, Probst A, Messmann H, Weber S, Papa JP. A survey on Barrett's esophagus analysis using machine learning. Comput Biol Med 2018; 96:203-213. [PMID: 29626734 DOI: 10.1016/j.compbiomed.2018.03.014] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Revised: 03/22/2018] [Accepted: 03/22/2018] [Indexed: 12/15/2022]
Abstract
This work presents a systematic review concerning recent studies and technologies of machine learning for Barrett's esophagus (BE) diagnosis and treatment. The use of artificial intelligence is a brand new and promising way to evaluate such disease. We compile some works published at some well-established databases, such as Science Direct, IEEEXplore, PubMed, Plos One, Multidisciplinary Digital Publishing Institute (MDPI), Association for Computing Machinery (ACM), Springer, and Hindawi Publishing Corporation. Each selected work has been analyzed to present its objective, methodology, and results. The BE progression to dysplasia or adenocarcinoma shows a complex pattern to be detected during endoscopic surveillance. Therefore, it is valuable to assist its diagnosis and automatic identification using computer analysis. The evaluation of the BE dysplasia can be performed through manual or automated segmentation through machine learning techniques. Finally, in this survey, we reviewed recent studies focused on the automatic detection of the neoplastic region for classification purposes using machine learning methods.
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Affiliation(s)
- Luis A de Souza
- Department of Computing, São Paulo State University, UNESP, Brazil; Regensburg Medical Image Computing (ReMIC), Ostbayerische Technische Hochschule Regensburg (OTH Regensburg), Germany
| | - Christoph Palm
- Regensburg Medical Image Computing (ReMIC), Ostbayerische Technische Hochschule Regensburg (OTH Regensburg), Germany; Regensburg Center of Biomedical Engineering (RCBE), OTH Regensburg and Regensburg University, Germany
| | - Robert Mendel
- Regensburg Medical Image Computing (ReMIC), Ostbayerische Technische Hochschule Regensburg (OTH Regensburg), Germany
| | - Christian Hook
- Regensburg Medical Image Computing (ReMIC), Ostbayerische Technische Hochschule Regensburg (OTH Regensburg), Germany
| | | | | | | | - Silke Weber
- Department of Otorhinolaryngology, São Paulo State University, Brazil
| | - João P Papa
- Department of Computing, São Paulo State University, UNESP, Brazil.
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14
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Galipeau PC, Oman KM, Paulson TG, Sanchez CA, Zhang Q, Marty JA, Delrow JJ, Kuhner MK, Vaughan TL, Reid BJ, Li X. NSAID use and somatic exomic mutations in Barrett's esophagus. Genome Med 2018; 10:17. [PMID: 29486792 PMCID: PMC5830331 DOI: 10.1186/s13073-018-0520-y] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2017] [Accepted: 02/09/2018] [Indexed: 12/18/2022] Open
Abstract
Background Use of aspirin and other non-steroidal anti-inflammatory drugs (NSAIDs) has been shown to protect against tetraploidy, aneuploidy, and chromosomal alterations in the metaplastic condition Barrett’s esophagus (BE) and to lower the incidence and mortality of esophageal adenocarcinoma (EA). The esophagus is exposed to both intrinsic and extrinsic mutagens resulting from gastric reflux, chronic inflammation, and exposure to environmental carcinogens such as those found in cigarettes. Here we test the hypothesis that NSAID use inhibits accumulation of point mutations/indels during somatic genomic evolution in BE. Methods Whole exome sequences were generated from 82 purified epithelial biopsies and paired blood samples from a cross-sectional study of 41 NSAID users and 41 non-users matched by sex, age, smoking, and continuous time using or not using NSAIDs. Results NSAID use reduced overall frequency of point mutations across the spectrum of mutation types, lowered the frequency of mutations even when adjusted for both TP53 mutation and smoking status, and decreased the prevalence of clones with high variant allele frequency. Never smokers who consistently used NSAIDs had fewer point mutations in signature 17, which is commonly found in EA. NSAID users had, on average, a 50% reduction in functional gene mutations in nine cancer-associated pathways and also had less diversity in pathway mutational burden compared to non-users. Conclusions These results indicate NSAID use functions to limit overall mutations on which selection can act and supports a model in which specific mutant cell populations survive or expand better in the absence of NSAIDs. Electronic supplementary material The online version of this article (10.1186/s13073-018-0520-y) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Patricia C Galipeau
- Division of Human Biology, Fred Hutchinson Cancer Research Center, PO Box 19024, 1100 Fairview Ave N, Seattle, WA, 98109-1024, USA
| | - Kenji M Oman
- Division of Human Biology, Fred Hutchinson Cancer Research Center, PO Box 19024, 1100 Fairview Ave N, Seattle, WA, 98109-1024, USA
| | - Thomas G Paulson
- Division of Human Biology, Fred Hutchinson Cancer Research Center, PO Box 19024, 1100 Fairview Ave N, Seattle, WA, 98109-1024, USA
| | - Carissa A Sanchez
- Division of Human Biology, Fred Hutchinson Cancer Research Center, PO Box 19024, 1100 Fairview Ave N, Seattle, WA, 98109-1024, USA
| | - Qing Zhang
- Bioinformatics Shared Resource, Fred Hutchinson Cancer Research Center, PO Box 19024, Seattle, WA, 98109-1024, USA
| | - Jerry A Marty
- Genomics Shared Resource, Fred Hutchinson Cancer Research Center, PO Box 19024, Seattle, WA, 98109-1024, USA
| | - Jeffrey J Delrow
- Genomics and Bioinformatics Shared Resources, Fred Hutchinson Cancer Research Center, PO Box 19024, Seattle, WA, 98109-1024, USA
| | - Mary K Kuhner
- Department of Genome Sciences, University of Washington, Foege Building S-250, Box 355065, 3720 15th Ave NE, Seattle, WA, 98195-5065, USA
| | - Thomas L Vaughan
- Department of Epidemiology, University of Washington, Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, PO Box 19024, Seattle, WA, 98109-1024, USA
| | - Brian J Reid
- Division of Human Biology, Fred Hutchinson Cancer Research Center, PO Box 19024, 1100 Fairview Ave N, Seattle, WA, 98109-1024, USA.,Department of Genome Sciences, University of Washington, Foege Building S-250, Box 355065, 3720 15th Ave NE, Seattle, WA, 98195-5065, USA.,Department of Medicine, University of Washington, Division of Human Biology, Fred Hutchinson Cancer Research Center, PO Box 19024, Seattle, WA, 98109-1024, USA
| | - Xiaohong Li
- Division of Human Biology, Fred Hutchinson Cancer Research Center, PO Box 19024, 1100 Fairview Ave N, Seattle, WA, 98109-1024, USA.
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15
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Barghash A, Golob-Schwarzl N, Helms V, Haybaeck J, Kessler SM. Elevated expression of the IGF2 mRNA binding protein 2 (IGF2BP2/IMP2) is linked to short survival and metastasis in esophageal adenocarcinoma. Oncotarget 2018; 7:49743-49750. [PMID: 27391348 PMCID: PMC5226544 DOI: 10.18632/oncotarget.10439] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2015] [Accepted: 06/26/2016] [Indexed: 12/25/2022] Open
Abstract
Esophageal adenocarcinoma (EAC) represents the sixth leading cause of cancer-related deaths and develops in Barret's esophagus affected tissues. The IGF2 mRNA binding protein IMP2/IGF2BP2/p62 was originally identified as an autoantigen in hepatocellular carcinoma. Aim of this study was to investigate the expression and prognostic role of IMP2 in EAC. Human EAC and Barret's esophagus tissue showed overexpression of IMP2, particularly in tumors of increased size and in metastatic tissues. Molecular classification based on published gene signatures of esophageal cancer revealed a specific subtype, in which the expression of IMP2 is high. According to GO and KEGG pathway analyses, genes showing highly correlated expression with IMP2 are associated with growth, proliferation, metabolism, inflammation, and cancerous processes. Clustering of EAC samples according to published survival marker genes strongly suggests that IMP2 overexpressing samples show poor survival. Finally, IMP2 expression correlated with short survival in patients with EAC or esophageal squamous carcinoma. Our data indicate that IMP2 might be a useful prognostic marker for Barret's esophagus and EAC.
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Affiliation(s)
- Ahmad Barghash
- Center for Bioinformatics, Saarland University, Saarbruecken, Germany.,School of Computer Engineering and Information Technology, German Jordanian University, Amman, Jordan
| | | | - Volkhard Helms
- Center for Bioinformatics, Saarland University, Saarbruecken, Germany
| | | | - Sonja M Kessler
- Department of Pharmacy, Pharmaceutical Biology, Saarland University, Saarbruecken, Germany
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16
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Gonzaga IM, Soares Lima SC, Nicolau MC, Nicolau-Neto P, da Costa NM, de Almeida Simão T, Hernandez-Vargas H, Herceg Z, Ribeiro Pinto LF. TFF1 hypermethylation and decreased expression in esophageal squamous cell carcinoma and histologically normal tumor surrounding esophageal cells. Clin Epigenetics 2017; 9:130. [PMID: 29296124 PMCID: PMC5738900 DOI: 10.1186/s13148-017-0429-0] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2017] [Accepted: 11/29/2017] [Indexed: 12/21/2022] Open
Abstract
Background Esophageal squamous cell carcinoma (ESCC) is one of the 10 most incident cancer types in the world, and it is mainly associated with tobacco and alcohol consumption. ESCC mortality rates stand very close to its incidence, which is a direct consequence of a late diagnosis and an inefficient treatment. Although this scenery is quite alarming, the major molecular alterations that drive this carcinogenesis process remain unclear. We have previously shown through the first ESCC methylome analysis that TFF1 promoter is frequently hypermethylated in ESCC. Here, to evaluate TFF1 methylation as a potential biomarker of early ESCC diagnosis, we investigated the status of TFF1 promoter methylation and its expression in ESSC and histologically normal tumor surrounding tissue of ESCC patients in comparison to healthy esophagus of non-cancer individuals. Results Analysis of TFF1 promoter methylation, and gene and protein expression in 65 ESCC patients and 88 controls revealed that TFF1 methylation levels were already increased in histologically normal tumor surrounding tissue of ESCC patients when compared to healthy esophagus of non-cancer individuals. This increase in DNA methylation was followed by the reduction of TFF1 mRNA expression. Interestingly, TFF1 expression was capable of distinguishing tumor surrounding normal tissue from normal mucosa of healthy individuals with 92% accuracy. In addition, TFF1 protein was undetectable both in tumor and surrounding mucosa by immunohistochemistry, while submucosa glands of the healthy esophagus showed positive staining. Furthermore, treatment of TE-1 and TE-13 ESCC cell lines with decitabine led to a reduction of promoter methylation and consequent upregulation of TFF1 gene and protein expression. Finally, using TCGA data we showed that TFF1 loss is observed in ESCC, but not in esophageal adenocarcinoma, highlighting the different molecular mechanisms involved in the development of each histological subtype of esophageal cancer. Conclusions This study shows that TFF1 expression is silenced in early phases of ESCC development, which seems to be mediated at least in part by promoter hypermethylation, and provides the basis for the use of TFF1 expression as a potential biomarker for early ESCC detection.
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Affiliation(s)
- Isabela Martins Gonzaga
- Programa de Carcinogênese Molecular, Instituto Nacional de Câncer, Coordenação de Pesquisa, Rua André Cavalcanti, 37–6° andar, Bairro de Fátima, Rio de Janeiro, Rio de Janeiro CEP: 20231-050 Brazil
| | - Sheila Coelho Soares Lima
- Programa de Carcinogênese Molecular, Instituto Nacional de Câncer, Coordenação de Pesquisa, Rua André Cavalcanti, 37–6° andar, Bairro de Fátima, Rio de Janeiro, Rio de Janeiro CEP: 20231-050 Brazil
| | - Marina Chianello Nicolau
- Programa de Carcinogênese Molecular, Instituto Nacional de Câncer, Coordenação de Pesquisa, Rua André Cavalcanti, 37–6° andar, Bairro de Fátima, Rio de Janeiro, Rio de Janeiro CEP: 20231-050 Brazil
| | - Pedro Nicolau-Neto
- Programa de Carcinogênese Molecular, Instituto Nacional de Câncer, Coordenação de Pesquisa, Rua André Cavalcanti, 37–6° andar, Bairro de Fátima, Rio de Janeiro, Rio de Janeiro CEP: 20231-050 Brazil
| | - Nathalia Meireles da Costa
- Programa de Carcinogênese Molecular, Instituto Nacional de Câncer, Coordenação de Pesquisa, Rua André Cavalcanti, 37–6° andar, Bairro de Fátima, Rio de Janeiro, Rio de Janeiro CEP: 20231-050 Brazil
| | - Tatiana de Almeida Simão
- Departamento de Bioquímica, Instituto de Biologia Roberto Alcantara Gomes, Universidade do Estado do Rio de Janeiro, Av. 28 de Setembro 87 fundos, Vila Isabel, Rio de Janeiro, CEP: 20551-013 Brazil
| | - Hector Hernandez-Vargas
- Epigenetics Group, Section of Mechanisms of Carcinogenesis, International Agency for Research on Cancer, 150 Cours Albert Thomas, 69372, CEDEX 08 Lyon, France
| | - Zdenko Herceg
- Epigenetics Group, Section of Mechanisms of Carcinogenesis, International Agency for Research on Cancer, 150 Cours Albert Thomas, 69372, CEDEX 08 Lyon, France
| | - Luis Felipe Ribeiro Pinto
- Programa de Carcinogênese Molecular, Instituto Nacional de Câncer, Coordenação de Pesquisa, Rua André Cavalcanti, 37–6° andar, Bairro de Fátima, Rio de Janeiro, Rio de Janeiro CEP: 20231-050 Brazil
- Departamento de Bioquímica, Instituto de Biologia Roberto Alcantara Gomes, Universidade do Estado do Rio de Janeiro, Av. 28 de Setembro 87 fundos, Vila Isabel, Rio de Janeiro, CEP: 20551-013 Brazil
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17
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Abstract
In The Cancer Genome Atlas the goals were to define how to treat advanced cancers with targeted therapy. However, the challenges facing cancer interception for early detection and prevention include length bias in which current screening and surveillance approaches frequently miss rapidly progressing cancers that then present at advanced stages in the clinic with symptoms (underdiagnosis). In contrast, many early detection strategies detect benign conditions that may never progress to cancer during a lifetime, and the patient dies of unrelated causes (overdiagnosis). This challenge to cancer interception is believed to be due to the speed at which the neoplasm evolves, called length bias sampling; rapidly progressing cancers are missed by current early detection strategies. In contrast, slowly or non-progressing cancers or their precursors are selectively detected. This has led to the concept of cancer interception, which can be defined as active interception of a biological process that drives cancer development before the patient presents in the clinic with an advanced, symptomatic cancer. The solutions needed to advance strategies for cancer interception require assessing the rate at which the cancer evolves over time and space. This is an essential challenge that needs to be addressed by robust study designs including normal and non-progressing controls when known to be appropriate.
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Affiliation(s)
- Brian J. Reid
- Correspondence Address correspondence to: Brian J. Reid, MD, PhD, 1100 Fairview Avenue N, C1-157, PO Box 19024, Seattle, Washington 98109-1024. fax: (206) 667-6192.1100 Fairview Avenue N, C1-157, PO Box 19024SeattleWashington 98109-1024
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18
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Lin J, Myers AL, Wang Z, Nancarrow DJ, Ferrer-Torres D, Handlogten A, Leverenz K, Bao J, Thomas DG, Wang TD, Orringer MB, Reddy RM, Chang AC, Beer DG, Lin L. Osteopontin (OPN/SPP1) isoforms collectively enhance tumor cell invasion and dissemination in esophageal adenocarcinoma. Oncotarget 2016; 6:22239-57. [PMID: 26068949 PMCID: PMC4673160 DOI: 10.18632/oncotarget.4161] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2015] [Accepted: 05/14/2015] [Indexed: 01/26/2023] Open
Abstract
Esophageal adenocarcinoma (EAC) is often diagnosed at an advanced stage, thus understanding the molecular basis for EAC invasion and metastasis is critical. Here we report that SPP1/OPN was highly overexpressed in primary EACs and intracellularly localized to tumor cells. We further demonstrate that all known OPN isoforms (OPNa, b, c, 4 and 5) were frequently co-overexpressed in primary EACs. Distinct pro-invasion and dissemination phenotypes of isoform-specific OPNb and OPNc stable transfectants were observed. Expression of OPNb significantly enhanced cell migration and adhesion to laminin. In contrast, OPNc cells showed significantly decreased cell migration yet increased cell detachment. Enhanced invasion, both in vitro and in vivo, was observed for OPNb- but not OPNc-expressing cells. Inhibition of RGD integrins, one family of OPN receptors, attenuated OPNb cell migration, abrogated OPNb cell adhesion and significantly reduced OPNb cell clonogenic survival but did not affect OPNc phenotypes, indicating that OPNb but not OPNc acts through integrin-dependent signaling. Differential expression of vimentin, E-cadherin and β-catenin in OPN stable cells may account for the variation in cell adhesion and detachment between these isoforms. We conclude that while all OPN isoforms are frequently co-overexpressed in primary EACs, isoforms OPNb and OPNc enhance invasion and dissemination through collective yet distinct mechanisms.
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Affiliation(s)
- Jules Lin
- Section of Thoracic Surgery, Department of Surgery, University of Michigan, Ann Arbor, MI, USA
| | - Amy L Myers
- Section of Thoracic Surgery, Department of Surgery, University of Michigan, Ann Arbor, MI, USA
| | - Zhuwen Wang
- Section of Thoracic Surgery, Department of Surgery, University of Michigan, Ann Arbor, MI, USA
| | - Derek J Nancarrow
- Section of Thoracic Surgery, Department of Surgery, University of Michigan, Ann Arbor, MI, USA
| | - Daysha Ferrer-Torres
- Section of Thoracic Surgery, Department of Surgery, University of Michigan, Ann Arbor, MI, USA
| | - Amy Handlogten
- Section of Thoracic Surgery, Department of Surgery, University of Michigan, Ann Arbor, MI, USA
| | - Kimmy Leverenz
- Section of Thoracic Surgery, Department of Surgery, University of Michigan, Ann Arbor, MI, USA
| | - Julia Bao
- Section of Thoracic Surgery, Department of Surgery, University of Michigan, Ann Arbor, MI, USA
| | - Dafydd G Thomas
- Department of Pathology, University of Michigan, Ann Arbor, MI, USA
| | - Thomas D Wang
- Department of Internal Medicine, University of Michigan, Ann Arbor, MI, USA
| | - Mark B Orringer
- Section of Thoracic Surgery, Department of Surgery, University of Michigan, Ann Arbor, MI, USA
| | - Rishindra M Reddy
- Section of Thoracic Surgery, Department of Surgery, University of Michigan, Ann Arbor, MI, USA
| | - Andrew C Chang
- Section of Thoracic Surgery, Department of Surgery, University of Michigan, Ann Arbor, MI, USA
| | - David G Beer
- Section of Thoracic Surgery, Department of Surgery, University of Michigan, Ann Arbor, MI, USA
| | - Lin Lin
- Section of Thoracic Surgery, Department of Surgery, University of Michigan, Ann Arbor, MI, USA
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19
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Cardoso J, Mesquita M, Dias Pereira A, Bettencourt-Dias M, Chaves P, Pereira-Leal JB. CYR61 and TAZ Upregulation and Focal Epithelial to Mesenchymal Transition May Be Early Predictors of Barrett's Esophagus Malignant Progression. PLoS One 2016; 11:e0161967. [PMID: 27583562 PMCID: PMC5008832 DOI: 10.1371/journal.pone.0161967] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2016] [Accepted: 08/15/2016] [Indexed: 12/25/2022] Open
Abstract
Barrett's esophagus is the major risk factor for esophageal adenocarcinoma. It has a low but non-neglectable risk, high surveillance costs and no reliable risk stratification markers. We sought to identify early biomarkers, predictive of Barrett's malignant progression, using a meta-analysis approach on gene expression data. This in silico strategy was followed by experimental validation in a cohort of patients with extended follow up from the Instituto Português de Oncologia de Lisboa de Francisco Gentil EPE (Portugal). Bioinformatics and systems biology approaches singled out two candidate predictive markers for Barrett's progression, CYR61 and TAZ. Although previously implicated in other malignancies and in epithelial-to-mesenchymal transition phenotypes, our experimental validation shows for the first time that CYR61 and TAZ have the potential to be predictive biomarkers for cancer progression. Experimental validation by reverse transcriptase quantitative PCR and immunohistochemistry confirmed the up-regulation of both genes in Barrett's samples associated with high-grade dysplasia/adenocarcinoma. In our cohort CYR61 and TAZ up-regulation ranged from one to ten years prior to progression to adenocarcinoma in Barrett's esophagus index samples. Finally, we found that CYR61 and TAZ over-expression is correlated with early focal signs of epithelial to mesenchymal transition. Our results highlight both CYR61 and TAZ genes as potential predictive biomarkers for stratification of the risk for development of adenocarcinoma and suggest a potential mechanistic route for Barrett's esophagus neoplastic progression.
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Affiliation(s)
- Joana Cardoso
- Instituto Gulbenkian de Ciência, Oeiras, Portugal
- Ophiomics—Precision Medicine, Lisboa, Portugal
- * E-mail:
| | - Marta Mesquita
- Serviço de Anatomia Patológica, Instituto Português de Oncologia de Lisboa Francisco Gentil, E.P.E., Lisboa, Portugal
- Faculdade de Ciências da Saúde–Universidade da Beira Interior, Covilhã, Portugal
| | - António Dias Pereira
- Faculdade de Ciências da Saúde–Universidade da Beira Interior, Covilhã, Portugal
- Serviço de Gastrenterologia, Instituto Português de Oncologia de Lisboa Francisco Gentil, E.P.E., Lisboa, Portugal
| | | | - Paula Chaves
- Serviço de Anatomia Patológica, Instituto Português de Oncologia de Lisboa Francisco Gentil, E.P.E., Lisboa, Portugal
- Faculdade de Ciências da Saúde–Universidade da Beira Interior, Covilhã, Portugal
| | - José B. Pereira-Leal
- Instituto Gulbenkian de Ciência, Oeiras, Portugal
- Ophiomics—Precision Medicine, Lisboa, Portugal
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20
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Abstract
The article by Banerjee and colleagues published in this issue of the journal involving a randomized control prevention trial of ursodeoxycholic acid (UDCA) in Barrett esophagus reported a null outcome despite being well designed and executed. Possible reasons for this null outcome are discussed focusing on use of surrogate endpoints in the trial. The trial is especially topical because it comes at a time when there are calls for a Pre-Cancer Genome Atlas (PCGA) for "understanding the earliest molecular and cellular events associated with cancer initiation…" This commentary discusses current concepts in prevention research including branched evolution that leads to therapeutic resistance. Length bias sampling postulates underdiagnosis is due to rapidly progressing disease that is difficult to detect by screening because it progresses to cancer too rapidly and that overdiagnosis is the result of very slowly or nonprogressing disease that is easy to detect by screening because it persists for a lifetime and the patient dies of unrelated causes. Finally, it also explores study designs, including surrogate endpoints in Barrett esophagus trials, and opportunities and pitfalls for a PCGA in the context of high levels of over and underdiagnosis of Barrett esophagus as well as many other cancers and their precursors. Cancer Prev Res; 9(7); 512-7. ©2016 AACRSee related article by Banerjee, et al., p. 528.
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Affiliation(s)
- Brian J Reid
- Divisions of Human Biology and Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, Washington. Departments of Genome Sciences and Medicine, University of Washington, Seattle, Washington.
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21
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Zhao W, Wang J, Zhu B, Duan Y, Chen F, Nian W, Sun J, Zhang B, Tong Z, Chen Z. IGFBP7 functions as a potential lymphangiogenesis inducer in non-small cell lung carcinoma. Oncol Rep 2015; 35:1483-92. [PMID: 26706909 DOI: 10.3892/or.2015.4516] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2015] [Accepted: 11/14/2015] [Indexed: 11/06/2022] Open
Abstract
Lymphangiogenesis is not only involved in the processes of embryonic development, tissue repair and chronic inflammation, but also in tumor lymphatic metastasis. Metastatic tumor cells spreading through lymphatic vessels occur in non-small cell lung carcinoma (NSCLC), with regional lymph node metastasis often being the most important prognostic factor for carcinoma patients. Recent research has identified a range of lymphangiogenic growth factors that could conceivably play a great role in promoting tumor lymphangiogenesis and lymphatic metastasis. The most extensively accepted signaling pathways promoting lymphangiogenesis in tumors include the secreted lymphangiogenic proteins: vascular endothelial growth factor-C (VEGF-C) and VEGF-D, and their cognate receptor on lymphatic endothelium VEGF receptor-3 (VEGFR-3). Targeting VEGF pathway strategy sometimes failed to decrease tumor metastasis in vivo experiments and clinical trials. It is unclear whether the tumor cells induced the lymphangiogenesis process, while VEGF pathway could not completely illustrate the mechanism of tumor cell lymphatic metastasis. To explore the novel tumor lymphangiogenesis targets, we screened 181 candidate genes between high lymphatic vascular density (LVD) and low LVD in lung adenocarcinomas using Human Genome U133 Plus 2.0 Microarray. Insulin-like growth factor binding protein 7 (IGFBP7) was proven to be associated with metastatic clinicopathological features and high LVD. Furthermore, by assessing the capability of lymphatic endothelial cell forming lymphatic vessel-like structures in vitro, it appears to enhance lymphangiogenesis.
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Affiliation(s)
- Weipeng Zhao
- Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060, P.R. China
| | - Jun Wang
- Department of Oncology, General Hospital, Jinan Command of the People's Liberation Army, Jinan, Shandong 250031, P.R. China
| | - Bo Zhu
- Institute of Cancer, Xinqiao Hospital, Third Military Medical University, Chongqing 400037, P.R. China
| | - Yuzhong Duan
- Institute of Cancer, Xinqiao Hospital, Third Military Medical University, Chongqing 400037, P.R. China
| | - Fanglin Chen
- Institute of Cancer, Xinqiao Hospital, Third Military Medical University, Chongqing 400037, P.R. China
| | - Weiqi Nian
- Institute of Cancer, Xinqiao Hospital, Third Military Medical University, Chongqing 400037, P.R. China
| | - Jianguo Sun
- Institute of Cancer, Xinqiao Hospital, Third Military Medical University, Chongqing 400037, P.R. China
| | - Bicheng Zhang
- Department of Oncology, Wuhan General Hospital of Guangzhou Command, People's Liberation Army, Wuhan, Hubei 430070, P.R. China
| | - Zhongsheng Tong
- Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060, P.R. China
| | - Zhengtang Chen
- Institute of Cancer, Xinqiao Hospital, Third Military Medical University, Chongqing 400037, P.R. China
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22
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Abstract
The incidence of esophageal adenocarcinoma (EAC), a debilitating and highly lethal malignancy, has risen dramatically over the past 40 years in the United States and other Western countries. To reverse this trend, EAC prevention and early detection efforts by clinicians, academic researchers and endoscope manufacturers have targeted Barrett's esophagus (BE), the widely accepted EAC precursor lesion. Data from surgical, endoscopic and pre-clinical investigations strongly support the malignant potential of BE. For patients with BE, the risk of developing EAC has been estimated at 11- to 125-fold greater than that of the individual at average risk. Nevertheless, screening for BE in symptomatic patients (ie, with symptoms of reflux) and surveillance in patients diagnosed with BE have not had a substantial impact on the incidence, morbidity or mortality of EAC; the overwhelming majority of EAC patients are diagnosed without a pre-operative diagnosis of BE. This article will discuss the current state of the science of esophageal adenocarcinoma prevention, including ideas about carcinogenesis and its underlying genomic and molecular level mechanisms, and suggest strategies for a systems approach to targeted preventive management.
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Affiliation(s)
- Ellen Richmond
- Division of Cancer Prevention, National Cancer Institute, Rockville, MD, USA.
| | - Asad Umar
- Division of Cancer Prevention, National Cancer Institute, Rockville, MD, USA
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23
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Srivastava A, Golden KL, Sanchez CA, Liu K, Fong PY, Li X, Cowan DS, Rabinovitch PS, Reid BJ, Blount PL, Odze RD. High Goblet Cell Count Is Inversely Associated with Ploidy Abnormalities and Risk of Adenocarcinoma in Barrett's Esophagus. PLoS One 2015; 10:e0133403. [PMID: 26230607 PMCID: PMC4521918 DOI: 10.1371/journal.pone.0133403] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2014] [Accepted: 06/25/2015] [Indexed: 12/13/2022] Open
Abstract
Purpose Goblet cells may represent a potentially successful adaptive response to acid and bile by producing a thick mucous barrier that protects against cancer development in Barrett's esophagus (BE). The aim of this study was to determine the relationship between goblet cells (GC) and risk of progression to adenocarcinoma, and DNA content flow cytometric abnormalities, in BE patients. Experimental Design Baseline mucosal biopsies (N=2988) from 213 patients, 32 of whom developed cancer during the follow up period, enrolled in a prospective dynamic cohort of BE patients were scored in a blinded fashion, for the total number (#) of GC, mean # of GC/crypt (GC density), # of crypts with ≥ 1 GC, and the proportion of crypts with ≥1 GC, in both dysplastic and non-dysplastic epithelium separately. The relationship between these four GC parameters and DNA content flow cytometric abnormalities and adenocarcinoma outcome was compared, after adjustment for age, gender, and BE segment length. Results High GC parameters were inversely associated with DNA content flow cytometric abnormalities, such as aneuploidy, ploidy >2.7N, and an elevated 4N fraction > 6%, and with risk of adenocarcinoma. However, a Kaplan-Meier analysis showed that the total # of GC and the total # crypts with ≥1 GC were the only significant GC parameters (p<0.001 and 0.003, respectively). Conclusions The results of this study show, for the first time, an inverse relationship between high GC counts and flow cytometric abnormalities and risk of adenocarcinoma in BE. Further studies are needed to determine if GC depleted foci within esophageal columnar mucosa are more prone to neoplastic progression or whether loss of GC occurs secondary to underlying genetic abnormalities.
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Affiliation(s)
- Amitabh Srivastava
- Department of Pathology, Brigham & Women's Hospital, Boston, Massachusetts, United States of America
| | - Kevin L. Golden
- Department of Pathology, Brigham & Women's Hospital, Boston, Massachusetts, United States of America
| | - Carissa A. Sanchez
- Department of Human Biology, Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America
- Department of Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America
| | - Karen Liu
- Department of Vaccine Infectious Disease Institute, Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America
| | - Pui Yee Fong
- Department of Human Biology, Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America
| | - Xiaohong Li
- Department of Human Biology, Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America
- Department of Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America
| | - David S. Cowan
- Department of Human Biology, Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America
- Department of Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America
| | - Peter S. Rabinovitch
- Department of Pathology, University of Washington, Seattle, Washington, United States of America
| | - Brian J. Reid
- Department of Human Biology, Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America
- Department of Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America
- Department of Medicine, University of Washington, Seattle, Washington, United States of America
- Department of Genome Sciences, University of Washington, Seattle, Washington, United States of America
| | - Patricia L. Blount
- Department of Human Biology, Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America
- Department of Medicine, University of Washington, Seattle, Washington, United States of America
| | - Robert D. Odze
- Department of Pathology, Brigham & Women's Hospital, Boston, Massachusetts, United States of America
- * E-mail:
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24
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McDonald SA, Graham TA, Lavery DL, Wright NA, Jansen M. The Barrett's Gland in Phenotype Space. Cell Mol Gastroenterol Hepatol 2015; 1:41-54. [PMID: 28247864 PMCID: PMC5301147 DOI: 10.1016/j.jcmgh.2014.10.001] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/05/2014] [Accepted: 10/15/2014] [Indexed: 02/06/2023]
Abstract
Barrett's esophagus is characterized by the erosive replacement of esophageal squamous epithelium by a range of metaplastic glandular phenotypes. These glandular phenotypes likely change over time, and their distribution varies along the Barrett's segment. Although much recent work has addressed Barrett's esophagus from the genomic viewpoint-its genotype space-the fact that the phenotype of Barrett's esophagus is nonstatic points to conversion between phenotypes and suggests that Barrett's esophagus also exists in phenotype space. Here we explore this latter concept, investigating the scope of glandular phenotypes in Barrett's esophagus and how they exist in physical and temporal space as well as their evolution and their life history. We conclude that individual Barrett's glands are clonal units; because of this important fact, we propose that it is the Barrett's gland that is the unit of selection in phenotypic and indeed neoplastic progression. Transition between metaplastic phenotypes may be governed by neutral drift akin to niche turnover in normal and dysplastic niches. In consequence, the phenotype of Barrett's glands assumes considerable importance, and we make a strong plea for the integration of the Barrett's gland in both genotype and phenotype space in future work.
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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, United Kingdom
| | - Trevor A. Graham
- Centre for Tumour Biology, Barts Cancer Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, United Kingdom
| | - Danielle L. Lavery
- Centre for Tumour Biology, Barts Cancer Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, United Kingdom
| | - 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, United Kingdom
| | - Marnix Jansen
- Centre for Tumour Biology, Barts Cancer Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, United Kingdom
- Department of Pathology, Academic Medical Center, Amsterdam, the Netherlands
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25
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Green NH, Nicholls Z, Heath PR, Cooper-Knock J, Corfe BM, MacNeil S, Bury JP. Pulsatile exposure to simulated reflux leads to changes in gene expression in a 3D model of oesophageal mucosa. Int J Exp Pathol 2014; 95:216-28. [PMID: 24713057 DOI: 10.1111/iep.12083] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2013] [Accepted: 03/07/2014] [Indexed: 01/11/2023] Open
Abstract
Oesophageal exposure to duodenogastroesophageal refluxate is implicated in the development of Barrett's metaplasia (BM), with increased risk of progression to oesophageal adenocarcinoma. The literature proposes that reflux exposure activates NF-κB, driving the aberrant expression of intestine-specific caudal-related homeobox (CDX) genes. However, early events in the pathogenesis of BM from normal epithelium are poorly understood. To investigate this, our study subjected a 3D model of the normal human oesophageal mucosa to repeated, pulsatile exposure to specific bile components and examined changes in gene expression. Initial 2D experiments with a range of bile salts observed that taurochenodeoxycholate (TCDC) impacted upon NF-κB activation without causing cell death. Informed by this, the 3D oesophageal model was repeatedly exposed to TCDC in the presence and absence of acid, and the epithelial cells underwent gene expression profiling. We identified ~300 differentially expressed genes following each treatment, with a large and significant overlap between treatments. Enrichment analysis (Broad GSEA, DAVID and Metacore™; GeneGo Inc) identified multiple gene sets related to cell signalling, inflammation, proliferation, differentiation and cell adhesion. Specifically NF-κB activation, Wnt signalling, cell adhesion and targets for the transcription factors PTF1A and HNF4α were highlighted. Our data suggest that HNF4α isoform switching may be an early event in Barrett's pathogenesis. CDX1/2 targets were, however, not enriched, suggesting that although CDX1/2 activation reportedly plays a role in BM development, it may not be an initial event. Our findings highlight new areas for investigation in the earliest stages of BM pathogenesis of oesophageal diseases and new potential therapeutic targets.
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Affiliation(s)
- Nicola H Green
- Kroto Research Institute, North Campus, University of Sheffield, Sheffield, UK
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26
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Chanda D, Lee JH, Sawant A, Hensel JA, Isayeva T, Reilly SD, Siegal GP, Smith C, Grizzle W, Singh R, Ponnazhagan S. Anterior gradient protein-2 is a regulator of cellular adhesion in prostate cancer. PLoS One 2014; 9:e89940. [PMID: 24587138 PMCID: PMC3937391 DOI: 10.1371/journal.pone.0089940] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2013] [Accepted: 01/25/2014] [Indexed: 01/08/2023] Open
Abstract
Anterior Gradient Protein (AGR-2) is reported to be over-expressed in many epithelial cancers and promotes metastasis. A clear-cut mechanism for its observed function(s) has not been previously identified. We found significant upregulation of AGR-2 expression in a bone metastatic prostate cancer cell line, PC3, following culturing in bone marrow-conditioned medium. Substantial AGR-2 expression was also confirmed in prostate cancer tissue specimens in patients with bone lesions. By developing stable clones of PC3 cells with varying levels of AGR-2 expression, we identified that abrogation of AGR-2 significantly reduced cellular attachment to fibronectin, collagen I, collagen IV, laminin I and fibrinogen. Loss of cellular adhesion was associated with sharp decrease in the expression of α4, α5, αV, β3 and β4 integrins. Failure to undergo apoptosis following detachment is a hallmark of epithelial cancer metastasis. The AGR-2-silenced PC3 cells showed higher resistance to Tumor necrosis factor-related apoptosis- inducing ligand (TRAIL) induced apoptosis in vitro. This observation was also supported by significantly reduced Caspase-3 expression in AGR-2-silenced PC3 cells, which is a key effector of both extrinsic and intrinsic death signaling pathways. These data suggest that AGR-2 influence prostate cancer metastasis by regulation of cellular adhesion and apoptosis.
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Affiliation(s)
- Diptiman Chanda
- Department of Pathology, University of Alabama at Birmingham, Birmingham, Alabama, United States of America
| | - Joo Hyoung Lee
- Department of Pathology, University of Alabama at Birmingham, Birmingham, Alabama, United States of America
| | - Anandi Sawant
- Department of Pathology, University of Alabama at Birmingham, Birmingham, Alabama, United States of America
| | - Jonathan A. Hensel
- Department of Pathology, University of Alabama at Birmingham, Birmingham, Alabama, United States of America
| | - Tatyana Isayeva
- Department of Pathology, University of Alabama at Birmingham, Birmingham, Alabama, United States of America
| | - Stephanie D. Reilly
- Department of Pathology, University of Alabama at Birmingham, Birmingham, Alabama, United States of America
| | - Gene P. Siegal
- Department of Pathology, University of Alabama at Birmingham, Birmingham, Alabama, United States of America
| | - Claire Smith
- Hospital Laboratories, University of Alabama Hospital, Birmingham, Alabama, United States of America
| | - William Grizzle
- Department of Pathology, University of Alabama at Birmingham, Birmingham, Alabama, United States of America
| | - Raj Singh
- Vivo Biosciences Inc., Birmingham, Alabama, United States of America
| | - Selvarangan Ponnazhagan
- Department of Pathology, University of Alabama at Birmingham, Birmingham, Alabama, United States of America
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27
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Weaver JMJ, Ross-Innes CS, Fitzgerald RC. The '-omics' revolution and oesophageal adenocarcinoma. Nat Rev Gastroenterol Hepatol 2014; 11:19-27. [PMID: 23982683 DOI: 10.1038/nrgastro.2013.150] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Oesophageal adenocarcinoma (OAC) is the eighth most common cancer type worldwide with a dismal 5-year survival. Barrett oesophagus, the replacement of the normal squamous epithelia with glandular cells, is the first step in the pathway towards OAC. Although most patients with OAC present de novo, the presence of the easily detectable OAC precursor lesion, Barrett oesophagus, enables the possibility of early detection of high-risk patients who are more likely to progress. Currently, identification of high-risk patients depends on histopathological assessment of dysplasia with no regards to molecular pathogenesis. In the future, screening and risk stratification initiatives for Barrett oesophagus that incorporate molecular profiles might permit improved early diagnosis and intervention strategies with the possibility of preventing OAC. For the majority of patients presenting de novo at an advanced stage, combining so-called -omics datasets with current clinical staging algorithms might enable OACs to be better classified according to distinct molecular programmes, thereby leading to better targeted treatment strategies as well as cancer monitoring regimes. This Review discusses how the latest advances in -omics technologies have improved our understanding of the development and biology of OAC, and how this development might alter patient management in the future.
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Affiliation(s)
- Jamie M J Weaver
- MRC Cancer Cell Unit, Hutchison/MRC Research Centre, Hills Road, Cambridge CB2 0XZ, UK
| | - Caryn S Ross-Innes
- MRC Cancer Cell Unit, Hutchison/MRC Research Centre, Hills Road, Cambridge CB2 0XZ, UK
| | - Rebecca C Fitzgerald
- MRC Cancer Cell Unit, Hutchison/MRC Research Centre, Hills Road, Cambridge CB2 0XZ, UK
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28
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Li X, Galipeau PC, Paulson TG, Sanchez CA, Arnaudo J, Liu K, Sather CL, Kostadinov RL, Odze RD, Kuhner MK, Maley CC, Self SG, Vaughan TL, Blount PL, Reid BJ. Temporal and spatial evolution of somatic chromosomal alterations: a case-cohort study of Barrett's esophagus. Cancer Prev Res (Phila) 2013; 7:114-27. [PMID: 24253313 DOI: 10.1158/1940-6207.capr-13-0289] [Citation(s) in RCA: 120] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
All cancers are believed to arise by dynamic, stochastic somatic genomic evolution with genome instability, generation of diversity, and selection of genomic alterations that underlie multistage progression to cancer. Advanced esophageal adenocarcinomas have high levels of somatic copy number alterations. Barrett's esophagus is a risk factor for developing esophageal adenocarcinoma, and somatic chromosomal alterations (SCA) are known to occur in Barrett's esophagus. The vast majority (∼95%) of individuals with Barrett's esophagus do not progress to esophageal adenocarcinoma during their lifetimes, but a small subset develop esophageal adenocarcinoma, many of which arise rapidly even in carefully monitored patients without visible endoscopic abnormalities at the index endoscopy. Using a well-designed, longitudinal case-cohort study, we characterized SCA as assessed by single-nucleotide polymorphism arrays over space and time in 79 "progressors" with Barrett's esophagus as they approach the diagnosis of cancer and 169 "nonprogressors" with Barrett's esophagus who did not progress to esophageal adenocarcinoma over more than 20,425 person-months of follow-up. The genomes of nonprogressors typically had small localized deletions involving fragile sites and 9p loss/copy neutral LOH that generate little genetic diversity and remained relatively stable over prolonged follow-up. As progressors approach the diagnosis of cancer, their genomes developed chromosome instability with initial gains and losses, genomic diversity, and selection of SCAs followed by catastrophic genome doublings. Our results support a model of differential disease dynamics in which nonprogressor genomes largely remain stable over prolonged periods, whereas progressor genomes evolve significantly increased SCA and diversity within four years of esophageal adenocarcinoma diagnosis, suggesting a window of opportunity for early detection.
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Affiliation(s)
- Xiaohong Li
- Divisions of Human Biology and Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, WA 98109-1024.
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29
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Bajpai M, Kessel R, Bhagat T, Nischal S, Yu Y, Verma A, Das KM. High resolution integrative analysis reveals widespread genetic and epigenetic changes after chronic in-vitro acid and bile exposure in Barrett's epithelium cells. Genes Chromosomes Cancer 2013; 52:1123-32. [PMID: 24123713 DOI: 10.1002/gcc.22106] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2013] [Revised: 07/31/2013] [Accepted: 08/01/2013] [Indexed: 12/12/2022] Open
Abstract
Barrett's epithelium (BE) is a premalignant condition resulting from chronic gastroesophageal reflux that may progress to esophageal adenocarcinoma (EAC). Early intervention holds promise in preventing BE progression. However, identification of high-risk BE patients remains challenging due to inadequate biomarkers for early diagnosis. We investigated the effect of prolonged chronic acid and bile exposure on transcriptome, methylome, and mutatome of cells in an in-vitro BE carcinogenesis (BEC) model. Twenty weeks acid and bile exposed cells from the BEC model (BEC20w) were compared with their naïve predecessors HiSeq Illumina based RNA sequencing was performed on RNA from both the cells for gene expression and mutational analysis. HELP Tagging Assay was performed for DNA methylation analysis. Ingenuity pathway, Gene Ontology, and KEGG PATHWAY analyses were then performed on datasets. Widespread aberrant genetic and epigenetic changes were observed in the BEC20w cells. Combinatorial analyses revealed 433 from a total of 863 downregulated genes had accompanying hypermethylation of promoters. Simultaneously, 690 genes from a total of 1,492 were upregulated with accompanying promoter hypomethylation. In addition, 763 mutations were identified on 637 genes. Ingenuity pathway analysis, Gene Ontology, and KEGG PATHWAY analyses associated the genetic and epigenetic changes in BEC20w cells with cellular and biological functions. Integration of high resolution comparative analyses of naïve BAR-T and BEC20w cells revealed striking genetic and epigenetic changes induced by chronic acid and bile exposure that may disrupt normal cellular functions and promote carcinogenesis. This novel study reveals several potential targets for future biomarkers and therapeutic development.
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Affiliation(s)
- Manisha Bajpai
- Division of Gastroenterology and Hepatology, Department of Medicine, RUTGERS Robert Wood Johnson Medical School, Rutgers Cancer Institute of New Jersey, New Brunswick, NJ
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30
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Wu X, Ajani JA, Gu J, Chang DW, Tan W, Hildebrandt MAT, Huang M, Wang KK, Hawk E. MicroRNA expression signatures during malignant progression from Barrett's esophagus to esophageal adenocarcinoma. Cancer Prev Res (Phila) 2013; 6:196-205. [PMID: 23466817 DOI: 10.1158/1940-6207.capr-12-0276] [Citation(s) in RCA: 84] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Barrett's esophagus is the precursor lesion of esophageal adenocarcinoma, whose progression follows sequential stages. However, the low progression rate and the inadequacy and subjective interpretation of histologic grading in predicting Barrett's esophagus progression call for more objective biomarkers that can improve risk prediction. We conducted a genome-wide profiling of 754 human microRNAs (miRNA) in 35 normal epithelium, 34 Barrett's esophagus, and 36 esophageal adenocarcinoma tissues using TaqMan real-time PCR-based profiling. Unsupervised hierarchical clustering using 294 modestly to highly expressed miRNAs showed clear clustering of two groups: normal epithelium versus Barrett's esophagus/esophageal adenocarcinoma tissues. Moreover, there was an excellent clustering of Barrett's metaplasia (without dysplasia) tissues from normal epithelium tissues. However, Barrett's esophagus tissues of different stages and esophageal adenocarcinoma tissues were interspersed. There were differentially expressed miRNAs at different stages. The majority of miRNA aberrations involved upregulation of expression in Barrett's esophagus and esophageal adenocarcinoma tissues, with the most dramatic alterations occurring at the Barrett's metaplasia stage. Known oncomiRs, such as miR-21, miR-25, and miR-223, and tumor suppressor miRNAs, including miR-205, miR-203, let-7c, and miR-133a, showed progressively altered expression from Barrett's esophagus to esophageal adenocarcinoma. We also identified a number of novel miRNAs that showed progressively altered expression, including miR-301b, miR-618, and miR-23b. The significant miRNA alterations that were exclusive to esophageal adenocarcinoma but not Barrett's esophagus included miR-375 downregulation and upregulation of five members of the miR-17-92 and its homologue clusters, which may become promising biomarkers for esophageal adenocarcinoma development.
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Affiliation(s)
- Xifeng Wu
- Department of Epidemiology, Unit 1340, The University of Texas MD Anderson Cancer Center, 1155 Pressler Boulevard, Houston, TX 77030, USA.
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31
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Shah AK, Saunders NA, Barbour AP, Hill MM. Early diagnostic biomarkers for esophageal adenocarcinoma--the current state of play. Cancer Epidemiol Biomarkers Prev 2013; 22:1185-209. [PMID: 23576690 DOI: 10.1158/1055-9965.epi-12-1415] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Esophageal adenocarcinoma (EAC) is one of the two most common types of esophageal cancer with alarming increase in incidence and very poor prognosis. Aiming to detect EAC early, currently high-risk patients are monitored using an endoscopic-biopsy approach. However, this approach is prone to sampling error and interobserver variability. Diagnostic tissue biomarkers related to genomic and cell-cycle abnormalities have shown promising results, although with current technology these tests are difficult to implement in the screening of high-risk patients for early neoplastic changes. Differential miRNA profiles and aberrant protein glycosylation in tissue samples have been reported to improve performance of existing tissue-based diagnostic biomarkers. In contrast to tissue biomarkers, circulating biomarkers are more amenable to population-screening strategies, due to the ease and low cost of testing. Studies have already shown altered circulating glycans and DNA methylation in BE/EAC, whereas disease-associated changes in circulating miRNA remain to be determined. Future research should focus on identification and validation of these circulating biomarkers in large-scale trials to develop in vitro diagnostic tools to screen population at risk for EAC development.
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Affiliation(s)
- Alok Kishorkumar Shah
- The University of Queensland Diamantina Institute; and School of Medicine, The University of Queensland, Woolloongabba, Queensland, Australia
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32
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He C, Jiang H, Geng S, Sheng H, Shen X, Zhang X, Zhu S, Chen X, Yang C, Gao H. Analysis of whole genomic expression profiles and screening of the key signaling pathways associated with pancreatic cancer. INTERNATIONAL JOURNAL OF CLINICAL AND EXPERIMENTAL PATHOLOGY 2012; 5:537-546. [PMID: 22949936 PMCID: PMC3430114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 05/24/2012] [Accepted: 07/01/2012] [Indexed: 06/01/2023]
Abstract
The tumorigenesis of pancreatic cancer is thought to be a complex process. Investigation of the molecular mechanism of pancreatic cancer and exploring the specific markers for early diagnosis and specific targets of therapy is a key point to prevent and treat pancreatic cancer effectively and to improve their prognosis. In this study, expression profiles experiment was performed using Agilent human whole genomic oligonucleotide microarrays with 41,000 genes. Differentially expressed genes related with pancreatic cancer were screened, and analyzed further by GO term analysis and KEGG Pathway analysis. Our results showed that there were 1276 differentially expressed genes associated with pancreatic cancer. 691 genes were up regulated and 585 were down regulated in pancreatic cancer group. The present study confirmed that the occurrence of pancreatic cancer was involved in multiple-gene interaction. In addition, our study found that pancreatic cancer was related to an activation of the mTOR signaling pathway and renal cell carcinoma pathway.
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Affiliation(s)
- Chengzhi He
- Department of Gastroenterology, Shanghai East Hospital, Tongji University School of MedicineShanghai 200120, China
- Department of Gastroenterology, Institute of Digestive Diseases, Tongji Hospital, Tongji University School of MedicineShanghai 200065, China
| | - Hua Jiang
- Department of Gastroenterology, Shanghai East Hospital, Tongji University School of MedicineShanghai 200120, China
| | - Shasha Geng
- Department of Gastroenterology, Shanghai East Hospital, Tongji University School of MedicineShanghai 200120, China
| | - Haihui Sheng
- National Engineering Center for BiochipShanghai, 201203, China
| | - Xiaoying Shen
- National Engineering Center for BiochipShanghai, 201203, China
| | - Xiaoyan Zhang
- National Engineering Center for BiochipShanghai, 201203, China
| | - Shizhang Zhu
- National Engineering Center for BiochipShanghai, 201203, China
| | - Ximei Chen
- Department of Gastroenterology, Institute of Digestive Diseases, Tongji Hospital, Tongji University School of MedicineShanghai 200065, China
| | - Changqing Yang
- Department of Gastroenterology, Institute of Digestive Diseases, Tongji Hospital, Tongji University School of MedicineShanghai 200065, China
| | - HengJun Gao
- Department of Gastroenterology, Institute of Digestive Diseases, Tongji Hospital, Tongji University School of MedicineShanghai 200065, China
- National Engineering Center for BiochipShanghai, 201203, China
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Clancy HA, Sun H, Passantino L, Kluz T, Muñoz A, Zavadil J, Costa M. Gene expression changes in human lung cells exposed to arsenic, chromium, nickel or vanadium indicate the first steps in cancer. Metallomics 2012; 4:784-93. [PMID: 22714537 DOI: 10.1039/c2mt20074k] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The complex process of carcinogenesis begins with transformation of a single cell to favor aberrant traits such as loss of contact inhibition and unregulated proliferation - features found in every cancer. Despite cancer's widespread prevalence, the early events that initiate cancer remain elusive, and without knowledge of these events cancer prevention is difficult. Here we show that exposure to As, Cr, Ni, or vanadium (V) promotes changes in gene expression that occur in conjunction with aberrant growth. We exposed immortalized human bronchial epithelial cells to one of four metals/metalloid for four to eight weeks and selected transformed clonal populations based upon anchorage independent growth of single cells in soft agar. We detected a metal-specific footprint of cancer-related gene expression that was consistent across multiple transformed clones. These gene expression changes persisted in the absence of the progenitor metal for numerous cell divisions. Our results show that even a brief exposure to a carcinogenic metal may cause many changes in gene expression in the exposed cells, and that from these many changes, the specific change(s) that each metal causes that initiate cancer likely arise.
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Affiliation(s)
- Hailey A Clancy
- Nelson Institute of Environmental Medicine, New York University School of Medicine, Department of Environmental Health Sciences, 57 Old Forge Road, Tuxedo, NY 10987, USA
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Wang G, Xu Z, Wang R, Al-Hijji M, Salit J, Strulovici-Barel Y, Tilley AE, Mezey JG, Crystal RG. Genes associated with MUC5AC expression in small airway epithelium of human smokers and non-smokers. BMC Med Genomics 2012; 5:21. [PMID: 22676183 PMCID: PMC3443416 DOI: 10.1186/1755-8794-5-21] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2012] [Accepted: 05/01/2012] [Indexed: 12/15/2022] Open
Abstract
Background Mucus hypersecretion contributes to the morbidity and mortality of smoking-related lung diseases, especially chronic obstructive pulmonary disease (COPD), which starts in the small airways. Despite progress in animal studies, the genes and their expression pattern involved in mucus production and secretion in human airway epithelium are not well understood. We hypothesized that comparison of the transcriptomes of the small airway epithelium of individuals that express high vs low levels of MUC5AC, the major macromolecular component of airway mucus, could be used as a probe to identify the genes related to human small airway mucus production/secretion. Methods Flexible bronchoscopy and brushing were used to obtain small airway epithelium (10th to 12th order bronchi) from healthy nonsmokers (n=60) and healthy smokers (n=72). Affymetrix HG-U133 plus 2.0 microarrays were used to assess gene expression. Massive parallel sequencing (RNA-Seq) was used to verify gene expression of small airway epithelium from 5 nonsmokers and 6 smokers. Results MUC5AC expression varied 31-fold among the healthy nonsmokers. Genome-wide comparison between healthy nonsmokers (n = 60) grouped as “high MUC5AC expressors” vs “low MUC5AC expressors” identified 528 genes significantly up-regulated and 15 genes significantly down-regulated in the high vs low expressors. This strategy identified both mucus production and secretion related genes under control of a network composed of multiple transcription factors. Based on the literature, genes in the up-regulated list were used to identify a 73 “MUC5AC-associated core gene” list with 9 categories: mucus component; mucus-producing cell differentiation-related transcription factor; mucus-producing cell differentiation-related pathway or mediator; post-translational modification of mucin; vesicle transport; endoplasmic reticulum stress-related; secretory granule-associated; mucus secretion-related regulator and mucus hypersecretory-related ion channel. As a validation cohort, we assessed the MUC5AC-associated core gene list in the small airway epithelium of an independent set of healthy smokers (n = 72). There was up-regulation of MUC5AC in the small airway epithelium of smokers (2.3-fold, p < 10-8) associated with a coordinated up-regulation of MUC5AC-associated core gene expression pattern in the small airway epithelium of smokers (p < 0.01). Deep sequencing confirmed these observations. Conclusion The identification of the genes associated with increased airway mucin production in humans should be useful in understanding the pathogenesis of airway mucus hypersecretion and identifying therapeutic targets. Author summary Mucus hypersecretion contributes to the morbidity and mortality of smoking-related lung diseases, especially chronic obstructive pulmonary disease (COPD), which starts in the small airways. Little is known about the gene networks associated with the synthesis and secretion of mucins in the human small airway epithelium. Taking advantage of the knowledge that MUC5AC is a major mucin secreted by the small airway epithelium, the expression of MUC5AC in small airway epithelium is highly regulated at the transcriptional level and our observation that healthy nonsmokers have variable numbers of MUC5AC+ secretory cells in the human small airway epithelium, we compared genome-wide gene expression of the small airway epithelium of high vs low MUC5AC expressors from 60 nonsmokers to identify the genes associated with MUC5AC expression. This novel strategy enabled identification of a 73 “MUC5AC-associated core gene” list with 9 categories, which control a series of processes from mucin biosynthesis to mucus secretion. The coordinated gene expression pattern of MUC5AC-associated core genes were corroborated in an independent cohort of 72 healthy smokers. Deep sequencing of small airway epithelium RNA confirmed these observations. This finding will be useful in identifying therapeutic targets to treat small airway mucus hypersecretion.
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Affiliation(s)
- Guoqing Wang
- Department of Genetic Medicine, Weill Cornell Medical College, New York, NY, USA.
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