1
|
Jiang S, Sun HF, Li S, Zhang N, Chen JS, Liu JX. SPARC: a potential target for functional nanomaterials and drugs. Front Mol Biosci 2023; 10:1235428. [PMID: 37577749 PMCID: PMC10419254 DOI: 10.3389/fmolb.2023.1235428] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Accepted: 07/13/2023] [Indexed: 08/15/2023] Open
Abstract
Secreted protein acidic and rich in cysteine (SPARC), also termed osteonectin or BM-40, is a matricellular protein which regulates cell adhesion, extracellular matrix production, growth factor activity, and cell cycle. Although SPARC does not perform a structural function, it, however, modulates interactions between cells and the surrounding extracellular matrix due to its anti-proliferative and anti-adhesion properties. The overexpression of SPARC at sites, including injury, regeneration, obesity, cancer, and inflammation, reveals its application as a prospective target and therapeutic indicator in the treatment and assessment of disease. This article comprehensively summarizes the mechanism of SPARC overexpression in inflammation and tumors as well as the latest research progress of functional nanomaterials in the therapy of rheumatoid arthritis and tumors by manipulating SPARC as a new target. This article provides ideas for using functional nanomaterials to treat inflammatory diseases through the SPARC target. The purpose of this article is to provide a reference for ongoing disease research based on SPARC-targeted therapy.
Collapse
Affiliation(s)
- Shan Jiang
- School of Pharmacy, Heilongjiang University of Traditional Chinese Medicine, Harbin, China
- School of Pharmaceutical Sciences, Department of Rehabilitation and Healthcare, Hunan University of Medicine, Huaihua, China
| | - Hui-Feng Sun
- School of Pharmacy, Heilongjiang University of Traditional Chinese Medicine, Harbin, China
| | - Shuang Li
- School of Pharmaceutical Sciences, Department of Rehabilitation and Healthcare, Hunan University of Medicine, Huaihua, China
- College Pharmacy, Jiamusi University, Jiamusi, China
| | - Ning Zhang
- School of Pharmacy, Heilongjiang University of Traditional Chinese Medicine, Harbin, China
- School of Pharmaceutical Sciences, Department of Rehabilitation and Healthcare, Hunan University of Medicine, Huaihua, China
| | - Ji-Song Chen
- School of Pharmaceutical Sciences, Department of Rehabilitation and Healthcare, Hunan University of Medicine, Huaihua, China
| | - Jian-Xin Liu
- School of Pharmaceutical Sciences, Department of Rehabilitation and Healthcare, Hunan University of Medicine, Huaihua, China
- School of Pharmaceutical Sciences, University of South China, Hengyang, China
- Institute of Innovation and Applied Research in Chinese Medicine, Hunan University of Chinese Medicine, Changsha, China
| |
Collapse
|
2
|
Paiji C, Sedarat A. Endoscopic Management of Esophageal Cancer. Cancers (Basel) 2022; 14:cancers14153583. [PMID: 35892840 PMCID: PMC9329770 DOI: 10.3390/cancers14153583] [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: 07/02/2022] [Revised: 07/18/2022] [Accepted: 07/20/2022] [Indexed: 02/04/2023] Open
Abstract
Advances in technology and improved understanding of the pathobiology of esophageal cancer have allowed endoscopy to serve a growing role in the management of this disease. Precursor lesions can be detected using enhanced diagnostic modalities and eradicated with ablation therapy. Furthermore, evolution in endoscopic resection has provided larger specimens for improved diagnostic accuracy and offer potential for cure of early esophageal cancer. In patients with advanced esophageal cancer, endoluminal therapy can improve symptom burden and provide therapeutic options for complications such as leaks, perforations, and fistulas. The purpose of this review article is to highlight the role of endoscopy in the diagnosis, treatment, and palliation of esophageal cancer.
Collapse
|
3
|
Ferrer-Torres D, Nancarrow DJ, Steinberg H, Wang Z, Kuick R, Weh KM, Mills RE, Ray D, Ray P, Lin J, Chang AC, Reddy RM, Orringer MB, Canto MI, Shaheen NJ, Kresty LA, Chak A, Wang TD, Rubenstein JH, Beer DG. Constitutively Higher Level of GSTT2 in Esophageal Tissues From African Americans Protects Cells Against DNA Damage. Gastroenterology 2019; 156:1404-1415. [PMID: 30578782 PMCID: PMC6441633 DOI: 10.1053/j.gastro.2018.12.004] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/12/2018] [Revised: 11/29/2018] [Accepted: 12/04/2018] [Indexed: 12/28/2022]
Abstract
BACKGROUND & AIMS African American and European American individuals have a similar prevalence of gastroesophageal reflux disease (GERD), yet esophageal adenocarcinoma (EAC) disproportionately affects European American individuals. We investigated whether the esophageal squamous mucosa of African American individuals has features that protect against GERD-induced damage, compared with European American individuals. METHODS We performed transcriptional profile analysis of esophageal squamous mucosa tissues from 20 African American and 20 European American individuals (24 with no disease and 16 with Barrett's esophagus and/or EAC). We confirmed our findings in a cohort of 56 patients and analyzed DNA samples from patients to identify associated variants. Observations were validated using matched genomic sequence and expression data from lymphoblasts from the 1000 Genomes Project. A panel of esophageal samples from African American and European American subjects was used to confirm allele-related differences in protein levels. The esophageal squamous-derived cell line Het-1A and a rat esophagogastroduodenal anastomosis model for reflux-generated esophageal damage were used to investigate the effects of the DNA-damaging agent cumene-hydroperoxide (cum-OOH) and a chemopreventive cranberry proanthocyanidin (C-PAC) extract, respectively, on levels of protein and messenger RNA (mRNA). RESULTS We found significantly higher levels of glutathione S-transferase theta 2 (GSTT2) mRNA in squamous mucosa from African American compared with European American individuals and associated these with variants within the GSTT2 locus in African American individuals. We confirmed that 2 previously identified genomic variants at the GSTT2 locus, a 37-kb deletion and a 17-bp promoter duplication, reduce expression of GSTT2 in tissues from European American individuals. The nonduplicated 17-bp promoter was more common in tissue samples from populations of African descendant. GSTT2 protected Het-1A esophageal squamous cells from cum-OOH-induced DNA damage. Addition of C-PAC increased GSTT2 expression in Het-1A cells incubated with cum-OOH and in rats with reflux-induced esophageal damage. C-PAC also reduced levels of DNA damage in reflux-exposed rat esophagi, as observed by reduced levels of phospho-H2A histone family member X. CONCLUSIONS We found GSTT2 to protect esophageal squamous cells against DNA damage from genotoxic stress and that GSTT2 expression can be induced by C-PAC. Increased levels of GSTT2 in esophageal tissues of African American individuals might protect them from GERD-induced damage and contribute to the low incidence of EAC in this population.
Collapse
Affiliation(s)
- Daysha Ferrer-Torres
- Department of Surgery, Section of Thoracic Surgery, University of Michigan, Ann Arbor, MI 48109
| | - Derek J. Nancarrow
- Department of Surgery, Section of Thoracic Surgery, University of Michigan, Ann Arbor, MI 48109
| | - Hannah Steinberg
- Department of Surgery, Section of Thoracic Surgery, University of Michigan, Ann Arbor, MI 48109
| | - Zhuwen Wang
- Department of Surgery, Section of Thoracic Surgery, University of Michigan, Ann Arbor, MI 48109
| | - Rork Kuick
- Department of Biostatistics, University of Michigan, Ann Arbor, MI 48109
| | - Katherine M. Weh
- Department of Surgery, Section of Thoracic Surgery, University of Michigan, Ann Arbor, MI 48109
| | - Ryan E. Mills
- Departments of Computational Medicine and Bioinformatics, University of Michigan, Ann Arbor, MI 48109
| | - Dipankar Ray
- Department of Radiation Oncology, University of Michigan, Ann Arbor, MI 48109
| | - Paramita Ray
- Department of Radiation Oncology, University of Michigan, Ann Arbor, MI 48109
| | - Jules Lin
- Department of Surgery, Section of Thoracic Surgery, University of Michigan, Ann Arbor, MI 48109
| | - Andrew C. Chang
- Department of Surgery, Section of Thoracic Surgery, University of Michigan, Ann Arbor, MI 48109
| | - Rishindra M. Reddy
- Department of Surgery, Section of Thoracic Surgery, University of Michigan, Ann Arbor, MI 48109
| | - Mark B. Orringer
- Department of Surgery, Section of Thoracic Surgery, University of Michigan, Ann Arbor, MI 48109
| | - Marcia I. Canto
- Department of Medicine, Gastroenterology and Hepatology, Johns Hopkins University, Baltimore, MD 21287
| | - Nicholas J. Shaheen
- Division of Gastroenterology and Hepatology, Department of Medicine, University of North Carolina, Chapel Hill NC 27599
| | - Laura A. Kresty
- Department of Surgery, Section of Thoracic Surgery, University of Michigan, Ann Arbor, MI 48109
| | - Amitabh Chak
- Department of Medicine, Gastroenterology, Case Western Reserve University, Cleveland, OH 44106
| | - Thomas D. Wang
- Division of Gastroenterology, Department of Internal Medicine, University of Michigan Medical School, Ann Arbor MI 48109
| | - Joel H. Rubenstein
- Division of Gastroenterology, Department of Internal Medicine, University of Michigan Medical School, Ann Arbor MI 48109
| | - David G. Beer
- Department of Surgery, Section of Thoracic Surgery, University of Michigan, Ann Arbor, MI 48109
| |
Collapse
|
4
|
Baker KT, Salk JJ, Brentnall TA, Risques RA. Precancer in ulcerative colitis: the role of the field effect and its clinical implications. Carcinogenesis 2018; 39:11-20. [PMID: 29087436 PMCID: PMC6248676 DOI: 10.1093/carcin/bgx117] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2017] [Revised: 09/22/2017] [Accepted: 10/26/2017] [Indexed: 12/13/2022] Open
Abstract
Cumulative evidence indicates that a significant proportion of cancer evolution may occur before the development of histological abnormalities. While recent improvements in DNA sequencing technology have begun to reveal the presence of these early preneoplastic clones, the concept of 'premalignant field' was already introduced by Slaughter more than half a century ago. Also referred to as 'field effect', 'field defect' or 'field cancerization', these terms describe the phenomenon by which molecular alterations develop in normal-appearing tissue and expand to form premalignant patches with the potential to progress to dysplasia and cancer. Field effects have been well-characterized in ulcerative colitis, an inflammatory bowel disease that increases the risk of colorectal cancer. The study of the molecular alterations that define these fields is informative of mechanisms of tumor initiation and progression and has provided potential targets for early cancer detection. Herein, we summarize the current knowledge about the molecular alterations that comprise the field effect in ulcerative colitis and the clinical utility of these fields for cancer screening and prevention.
Collapse
Affiliation(s)
- Kathryn T Baker
- Department of Pathology, University of Washington, Seattle, WA, USA
| | - Jesse J Salk
- Division of Hematology and Oncology, Department of Medicine, University of
Washington, Seattle, WA, USA
- TwinStrand Biosciences Seattle, WA, USA
| | - Teresa A Brentnall
- Division of Gasteroenterology, Department of Medicine, University of
Washington, Seattle, WA, USA
| | - Rosa Ana Risques
- To whom correspondence should be addressed. Tel: +206-616-4976; Fax:
+206-543-1140;
| |
Collapse
|
5
|
Levert-Mignon A, Bourke MJ, Lord SJ, Taylor AC, Wettstein AR, Edwards M, Botelho NK, Sonson R, Jayasekera C, Fisher OM, Thomas ML, Macrae F, Hussey DJ, Watson DI, Lord RV. Changes in gene expression of neo-squamous mucosa after endoscopic treatment for dysplastic Barrett's esophagus and intramucosal adenocarcinoma. United European Gastroenterol J 2017; 5:13-20. [PMID: 28405317 DOI: 10.1177/2050640616650794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/08/2015] [Accepted: 04/27/2016] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND Endoscopic therapy, including by radiofrequency ablation (RFA) or endoscopic mucosal resection (EMR), is first line treatment for Barrett's esophagus (BE) with high-grade dysplasia (HGD) or intramucosal cancer (IMC) and may be appropriate for some patients with low-grade dysplasia (LGD). OBJECTIVE The purpose of this study was to investigate the molecular effects of endotherapy. METHODS mRNA expression of 16 genes significantly associated with different BE stages was measured in paired pre-treatment BE tissues and post-treatment neo-squamous biopsies from 36 patients treated by RFA (19 patients, 3 IMC, 4 HGD, 12 LGD) or EMR (17 patients, 4 IMC, 13 HGD). EMR was performed prior to RFA in eight patients. Normal squamous esophageal tissues were from 20 control individuals. RESULTS Endoscopic therapy resulted in significant change towards the normal squamous expression profile for all genes. The neo-squamous expression profile was significantly different to the normal control profile for 11 of 16 genes. CONCLUSION Endotherapy results in marked changes in mRNA expression, with replacement of the disordered BE dysplasia or IMC profile with a more "normal" profile. The neo-squamous mucosa was significantly different to the normal control squamous mucosa for most genes. The significance of this finding is uncertain but it may support continued endoscopic surveillance after successful endotherapy.
Collapse
Affiliation(s)
- Angelique Levert-Mignon
- Gastroesophageal Cancer Research Program, St Vincent's Centre for Applied Medical Research, Sydney, NSW, Australia
| | - Michael J Bourke
- Department of Gastroenterology and Hepatology, Westmead Hospital, Westmead, NSW, Australia
| | - Sarah J Lord
- Gastroesophageal Cancer Research Program, St Vincent's Centre for Applied Medical Research, Sydney, NSW, Australia; School of Medicine, University of Notre Dame, Sydney, NSW, Australia
| | - Andrew C Taylor
- Department of Gastroenterology, St Vincent's Hospital, Melbourne, VIC, Australia
| | - Antony R Wettstein
- Diagnostic Endoscopy Centre, St Vincent's Clinic, Sydney, NSW, Australia
| | - Melanie Edwards
- School of Medicine, University of Notre Dame, Sydney, NSW, Australia; Department of Histopathology, Douglass Hanly Moir Pathology, Sydney, NSW Australia
| | - Natalia K Botelho
- Gastroesophageal Cancer Research Program, St Vincent's Centre for Applied Medical Research, Sydney, NSW, Australia
| | - Rebecca Sonson
- Department of Gastroenterology and Hepatology, Westmead Hospital, Westmead, NSW, Australia
| | - Chatura Jayasekera
- Department of Gastroenterology, St Vincent's Hospital, Melbourne, VIC, Australia
| | - Oliver M Fisher
- Gastroesophageal Cancer Research Program, St Vincent's Centre for Applied Medical Research, Sydney, NSW, Australia
| | - Melissa L Thomas
- Gastroesophageal Cancer Research Program, St Vincent's Centre for Applied Medical Research, Sydney, NSW, Australia; School of Medicine, University of Notre Dame, Sydney, NSW, Australia
| | - Finlay Macrae
- Department of Colorectal Medicine and Genetics, The Royal Melbourne Hospital, Parkville, VIC, Australia; Department of Medicine, The University of Melbourne, Parkville, VIC, Australia
| | - Damian J Hussey
- Department of Surgery, Flinders University, Flinders Medical Centre Bedford Park, SA, Australia; Flinders Centre for Cancer Prevention and Control, Flinders University, Bedford Park, SA, Australia
| | - David I Watson
- Department of Surgery, Flinders University, Flinders Medical Centre Bedford Park, SA, Australia; Flinders Centre for Cancer Prevention and Control, Flinders University, Bedford Park, SA, Australia
| | - Reginald V Lord
- Gastroesophageal Cancer Research Program, St Vincent's Centre for Applied Medical Research, Sydney, NSW, Australia; School of Medicine, University of Notre Dame, Sydney, NSW, Australia; Diagnostic Endoscopy Centre, St Vincent's Clinic, Sydney, NSW, Australia
| |
Collapse
|
6
|
Herrera-Goepfert R, Oñate-Ocaña LF, Mosqueda-Vargas JL, Herrera LA, Castro C, Mendoza J, González-Barrios R. Methylation of DAPK and THBS1 genes in esophageal gastric-type columnar metaplasia. World J Gastroenterol 2016; 22:4567-4575. [PMID: 27182166 PMCID: PMC4858638 DOI: 10.3748/wjg.v22.i18.4567] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/02/2015] [Revised: 01/19/2016] [Accepted: 01/30/2016] [Indexed: 02/06/2023] Open
Abstract
AIM: To explore methylation of DAPK, THBS1, CDH-1, and p14 genes, and Helicobacter pylori (H. pylori) status in individuals harboring esophageal columnar metaplasia.
METHODS: Distal esophageal mucosal samples obtained by endoscopy and histologically diagnosed as gastric-type (non-specialized) columnar metaplasia, were studied thoroughly. DNA was extracted from paraffin blocks, and methylation status of death-associated protein kinase (DAPK), thrombospondin-1 (THBS1), cadherin-1 (CDH1), and p14 genes, was examined using a methyl-sensitive polymerase chain reaction (MS-PCR) and sodium bisulfite modification protocol. H. pylori cagA status was determined by PCR.
RESULTS: In total, 68 subjects (33 females and 35 males), with a mean age of 52 years, were included. H. pylori cagA positive was present in the esophageal gastric-type metaplastic mucosa of 18 individuals. DAPK, THSB1, CDH1, and p14 gene promoters were methylated by MS-PCR in 40 (58.8%), 33 (48.5%), 46 (67.6%), and 23 (33.8%) cases of the 68 esophageal samples. H. pylori status was associated with methylation of DAPK (P = 0.003) and THBS1 (P = 0.019).
CONCLUSION: DNA methylation occurs in cases of gastric-type (non-specialized) columnar metaplasia of the esophagus, and this modification is associated with H. pylori cagA positive infection.
Collapse
|
7
|
Schwacke J, Millar TP, Hammond CE, Saha A, Hoffman BJ, Romagnuolo J, Hill EG, Smolka AJ. Discrimination of normal and esophageal cancer plasma proteomes by MALDI-TOF mass spectrometry. Dig Dis Sci 2015; 60:1645-54. [PMID: 25577268 DOI: 10.1007/s10620-014-3513-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/11/2014] [Accepted: 12/29/2014] [Indexed: 12/09/2022]
Abstract
BACKGROUND Most patients presenting with symptoms of esophageal cancer (EC) have advanced disease. Even with resection, the cure rate is extremely low due to local recurrence and metastatic disease. Early detection and effective therapeutic intervention are essential to improve survival. AIMS This study tested the hypothesis that the presence of EC modulates concentrations of specific plasma proteins and peptides, potentially allowing discrimination between EC and controls based on mass spectrometric analysis of the respective plasma proteomes. METHODS Blood samples from 79 esophageal cancer patients and 40 age-matched normal subjects were processed to plasma, and protein/peptide sub-fractions were isolated using HIC8 or WAX-derivatized superparamagnetic beads. Triplicate matrix-assisted laser desorption time-of-flight mass spectra were acquired for specific plasma fractions from each subject. RESULTS HIC8 and WAX-derivatized plasma eluates yielded 79 and 77 candidate features, respectively, and a Random Forest algorithm identified a subset of features whose peak intensities allowed discrimination between cancer patients and controls. Areas under the curve in receiver operating characteristic curves for HIC8 spectra were 0.88 and 0.83 for WAX spectra. The combined feature set discriminated EC from control plasma with 79 % sensitivity and 79 % specificity, with positive and negative test likelihood ratios of >14 and 0.17, respectively. CONCLUSIONS These data lay the foundation for the development of a clinically useful test for esophageal cancer based on statistical analysis of proteomic spectra of patient plasma samples. This approach will be validated by analysis of larger patient cohorts, development of cancer-specific classifiers, and assessment of racial origin imbalances.
Collapse
|
8
|
Pavlov K, Honing J, Meijer C, Boersma-van Ek W, Peters FTM, van den Berg A, Karrenbeld A, Plukker JTM, Kruyt FAE, Kleibeuker JH. GATA6 expression in Barrett's oesophagus and oesophageal adenocarcinoma. Dig Liver Dis 2015; 47:73-80. [PMID: 25445407 DOI: 10.1016/j.dld.2014.09.014] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/04/2014] [Revised: 09/15/2014] [Accepted: 09/18/2014] [Indexed: 02/06/2023]
Abstract
BACKGROUND Barrett's oesophagus can progress towards oesophageal adenocarcinoma through a metaplasia-dysplasia-carcinoma sequence, but the underlying mechanisms are poorly understood. The transcription factor GATA6 is known to be involved in columnar differentiation and proliferation, and GATA6 gene amplification was recently linked with poor survival in oesophageal adenocarcinoma. AIM To study the expression of GATA6 during Barrett's oesophagus development and malignant transformation. To determine the prognostic value of GATA6 in oesophageal adenocarcinoma. METHODS Two retrospective cohorts were derived from the pathological archive of the University Medical Center Groningen. The first cohort contained 130 tissue samples of normal squamous epithelium, metaplasia, dysplasia and oesophageal adenocarcinoma. The second cohort consisted of a tissue microarray containing tissue from 92 oesophageal adenocarcinoma patients. Immunohistochemistry was used to examine GATA6 protein expression and to correlate GATA6 expression in oesophageal adenocarcinoma with overall and disease-free survival. RESULTS The percentage of GATA6-positive cells was low in squamous epithelium (10%) but increased progressively in Barrett's oesophagus (30%, P < 0.001) and high-grade dysplasia (82%, P = 0.005). GATA6 expression was not associated with overall or disease-free survival in oesophageal adenocarcinoma patients (P = 0.599 and P = 0.700 respectively). CONCLUSION GATA6 expression is progressively increased during Barrett's oesophagus development and its malignant transformation. However, no prognostic value of GATA6 expression could be found in oesophageal adenocarcinoma.
Collapse
Affiliation(s)
- Kirill Pavlov
- Department of Gastroenterology and Hepatology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Judith Honing
- Department of Surgical Oncology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Coby Meijer
- Department of Medical Oncology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Wytske Boersma-van Ek
- Department of Gastroenterology and Hepatology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Frans T M Peters
- Department of Gastroenterology and Hepatology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Anke van den Berg
- Department of Pathology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Arend Karrenbeld
- Department of Pathology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - John T M Plukker
- Department of Surgical Oncology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Frank A E Kruyt
- Department of Medical Oncology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Jan H Kleibeuker
- Department of Gastroenterology and Hepatology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands.
| |
Collapse
|
9
|
Zhang Q, Yu C, Peng S, Xu H, Wright E, Zhang X, Huo X, Cheng E, Pham TH, Asanuma K, Hatanpaa KJ, Rezai D, Wang DH, Sarode V, Melton S, Genta RM, Spechler SJ, Souza RF. Autocrine VEGF signaling promotes proliferation of neoplastic Barrett's epithelial cells through a PLC-dependent pathway. Gastroenterology 2014; 146:461-72.e6. [PMID: 24120473 PMCID: PMC3899829 DOI: 10.1053/j.gastro.2013.10.011] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/03/2012] [Revised: 10/03/2013] [Accepted: 10/03/2013] [Indexed: 12/11/2022]
Abstract
BACKGROUND & AIMS Tumor cells express vascular endothelial growth factor (VEGF), which induces angiogenesis. VEGF also activates VEGF receptors (VEGFRs) on or within tumor cells to promote their proliferation in an autocrine fashion. We studied the mechanisms of autocrine VEGF signaling in Barrett's esophagus cells. METHODS Using Barrett's epithelial cell lines, we measured VEGF and VEGFR messenger RNA and protein, and studied the effects of VEGF signaling on cell proliferation and VEGF secretion. We studied the effects of inhibiting factors in this pathway on levels of phosphorylated phospholipase Cγ1 (PLCG1), protein kinase C, and extracellular signal-regulated kinases (ERK)1/2. We performed immunohistochemical analysis of phosphorylated VEGFR2 on esophageal adenocarcinoma tissues. We studied effects of sunitinib, a VEGFR2 inhibitor, on proliferation of neoplastic cells and growth of xenograft tumors in mice. RESULTS Neoplastic and non-neoplastic Barrett's cells expressed VEGF and VEGFR2 messenger RNA and protein, with higher levels in neoplastic cells. Incubation with recombinant human VEGF significantly increased secretion of VEGF protein and cell number; knockdown of PLCG1 markedly reduced the recombinant human VEGF-stimulated increase in levels of phosphorylated PLCG1 and phosphorylated ERK1/2 in neoplastic cells. Esophageal adenocarcinoma tissues showed immunostaining for phosphorylated VEGFR2. Sunitinib inhibited VEGF signaling in neoplastic cells and reduced weight and volume of xenograft tumors in mice. CONCLUSIONS Neoplastic and non-neoplastic Barrett's epithelial cells have autocrine VEGF signaling. In neoplastic Barrett's cells, VEGF activation of VEGFR2 initiates a PLCG1-protein kinase C-ERK pathway that promotes proliferation and is self-sustaining (by causing more VEGF production). Strategies to reduce autocrine VEGF signaling (eg, with sunitinib) might be used to prevent or treat cancer in patients with Barrett's esophagus.
Collapse
Affiliation(s)
- Qiuyang Zhang
- Center for Esophageal Diseases, VA North Texas Health Care System and the University of Texas Southwestern Medical School, Dallas, Texas; Department of Internal Medicine, VA North Texas Health Care System and the University of Texas Southwestern Medical School, Dallas, Texas
| | - Chunhua Yu
- Center for Esophageal Diseases, VA North Texas Health Care System and the University of Texas Southwestern Medical School, Dallas, Texas; Department of Internal Medicine, VA North Texas Health Care System and the University of Texas Southwestern Medical School, Dallas, Texas
| | - Sui Peng
- Center for Esophageal Diseases, VA North Texas Health Care System and the University of Texas Southwestern Medical School, Dallas, Texas; Department of Internal Medicine, VA North Texas Health Care System and the University of Texas Southwestern Medical School, Dallas, Texas; Division of Gastroenterology and Hepatology, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Hao Xu
- Department of Internal Medicine, VA North Texas Health Care System and the University of Texas Southwestern Medical School, Dallas, Texas
| | - Ellen Wright
- Department of Research and Development, VA North Texas Heath Care System, Dallas, Texas
| | - Xi Zhang
- Center for Esophageal Diseases, VA North Texas Health Care System and the University of Texas Southwestern Medical School, Dallas, Texas; Department of Internal Medicine, VA North Texas Health Care System and the University of Texas Southwestern Medical School, Dallas, Texas
| | - Xiaofang Huo
- Center for Esophageal Diseases, VA North Texas Health Care System and the University of Texas Southwestern Medical School, Dallas, Texas; Department of Internal Medicine, VA North Texas Health Care System and the University of Texas Southwestern Medical School, Dallas, Texas
| | - Edaire Cheng
- Center for Esophageal Diseases, VA North Texas Health Care System and the University of Texas Southwestern Medical School, Dallas, Texas; Department of Internal Medicine, VA North Texas Health Care System and the University of Texas Southwestern Medical School, Dallas, Texas; Department of Pediatrics, Children's Medical Center, Dallas, Texas
| | - Thai H Pham
- Center for Esophageal Diseases, VA North Texas Health Care System and the University of Texas Southwestern Medical School, Dallas, Texas; Department of Surgery, VA North Texas Health Care System and the University of Texas Southwestern Medical School, Dallas, Texas
| | - Kiyotaka Asanuma
- Center for Esophageal Diseases, VA North Texas Health Care System and the University of Texas Southwestern Medical School, Dallas, Texas; Department of Internal Medicine, VA North Texas Health Care System and the University of Texas Southwestern Medical School, Dallas, Texas
| | - Kimmo J Hatanpaa
- Department of Pathology, VA North Texas Health Care System and the University of Texas Southwestern Medical School, Dallas, Texas
| | - Davood Rezai
- Center for Esophageal Diseases, VA North Texas Health Care System and the University of Texas Southwestern Medical School, Dallas, Texas; Department of Research and Development, VA North Texas Heath Care System, Dallas, Texas
| | - David H Wang
- Center for Esophageal Diseases, VA North Texas Health Care System and the University of Texas Southwestern Medical School, Dallas, Texas; Department of Internal Medicine, VA North Texas Health Care System and the University of Texas Southwestern Medical School, Dallas, Texas; Harold C. Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Venetia Sarode
- Department of Pathology, VA North Texas Health Care System and the University of Texas Southwestern Medical School, Dallas, Texas
| | - Shelby Melton
- Center for Esophageal Diseases, VA North Texas Health Care System and the University of Texas Southwestern Medical School, Dallas, Texas; Department of Pathology, VA North Texas Health Care System and the University of Texas Southwestern Medical School, Dallas, Texas
| | - Robert M Genta
- Center for Esophageal Diseases, VA North Texas Health Care System and the University of Texas Southwestern Medical School, Dallas, Texas; Department of Pathology, VA North Texas Health Care System and the University of Texas Southwestern Medical School, Dallas, Texas; Miraca Life Sciences, Inc., Irving, Texas
| | - Stuart J Spechler
- Center for Esophageal Diseases, VA North Texas Health Care System and the University of Texas Southwestern Medical School, Dallas, Texas; Department of Internal Medicine, VA North Texas Health Care System and the University of Texas Southwestern Medical School, Dallas, Texas; Harold C. Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Rhonda F Souza
- Center for Esophageal Diseases, VA North Texas Health Care System and the University of Texas Southwestern Medical School, Dallas, Texas; Department of Internal Medicine, VA North Texas Health Care System and the University of Texas Southwestern Medical School, Dallas, Texas; Harold C. Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, Texas.
| |
Collapse
|
10
|
Rao S, Welsh L, Cunningham D, te-Poele RH, Benson M, Norman A, Saffery C, Giddings I, Workman P, Clarke PA. Correlation of overall survival with gene expression profiles in a prospective study of resectable esophageal cancer. Clin Colorectal Cancer 2011; 10:48-56. [PMID: 21609936 DOI: 10.3816/ccc.2011.n.007] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
PURPOSE Preoperative chemotherapy has demonstrated a survival benefit for patients with potentially resectable esophageal cancer; however, currently it is not possible to predict the benefit of this treatment for an individual patient. This prospective study was designed to correlate gene expression profiles with clinical outcome in this setting. PATIENTS AND METHODS Eligible patients were deemed to have resectable disease after staging by computed tomography, endoscopic ultrasound, and laparoscopy as indicated and following discussion at the multidisciplinary team meeting. All patients received neoadjuvant platinum and fluoropyrimidine-based chemotherapy; and clinical data were entered prospectively onto a study-specific database. Total RNA was isolated from pretreatment tumor biopsies obtained at baseline endoscopy and analyzed using a cDNA array consisting of 22,000 cDNA clones. RESULTS Of the patients with adequate follow-up accrued between 2002 and 2005, 35 satisfied the quality control measures for the microarray profiling. Median follow-up was 938 days. Supervised hierarchical clustering of normalized data revealed 165 significantly differentially expressed genes based on overall survival (OS; P < .01) with 2 distinct clusters: a poor outcome group: N = 17 (1 year OS 46.2%) and a good outcome group: N = 18 (1 year OS 100%). Genes identified included those previously associated with esophageal cancer and, interestingly, a group of genes encoding proteins involved in the regulation of the TOLL receptor-signaling pathway. CONCLUSION This initial study has highlighted groups of tumors with distinct gene expression profiles based on survival and warrants further validation in a larger cohort. This approach may further our understanding of individual tumor biology and thus facilitate the development of tailored treatment.
Collapse
Affiliation(s)
- Sheela Rao
- Royal Marsden Hospital, London and Surrey, UK
| | | | | | | | | | | | | | | | | | | |
Collapse
|
11
|
Feasibility of mcroRNAs as biomarkers for Barrett's Esophagus progression: a pilot cross-sectional, phase 2 biomarker study. Am J Gastroenterol 2011; 106:1055-63. [PMID: 21407181 DOI: 10.1038/ajg.2011.37] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
OBJECTIVES Risk stratification of Barrett's esophagus (BE) using biomarkers remains an important goal. We evaluated feasibility and clinical accuracy of novel microRNA (miRNA) biomarkers for prediction of BE dysplasia. METHODS Paired fresh-frozen and hematoxylin/eosin specimens from a prospective tissue repository where only biopsies with the lesion of interest (i.e., intestinal metaplasia (IM) or high-grade dysplasia (HGD)/esophageal adenocarcinoma (EAC)) occupying >50% of biopsy area were included. Tissue miRNA expression was determined by microarrays and validated by quantitative reverse transcription-PCR (qRT-PCR). Three groups were compared-group A, IM tissues from BE patients without dysplasia; group B, IM tissues from group C patients; and group C, dysplastic tissues from BE patients with HGD/EAC. RESULTS Overall, 22 BE patients, 11 with and without dysplasia (mean age 64 ± 8.2 and 63 ± 11.6 years, respectively, all Caucasian males) were evaluated. Nine miRNAs were identified by high-throughout analysis (miR-15b, -21, -192, -205, 486-5p, -584, -1246, let-7a, and -7d) and qRT-PCR confirmed expression of miR-15b, -21, 486-5p, and let-7a. Two of 4 miRNAs (miR-145 and -203, but not -196a and -375) previously described in BE patients also exhibited differential expression. Sensitivity and specificity of miRNAs for HGD/EAC were miR-15b: 87 and 80%, miR-21: 93 and 70%, miR-203: 87 and 90%, miR-486-5p: 82 and 55%, and miR-let-7a: 88 and 70%. MiRNA-15b, -21, and -203 exhibited field effects (i.e., groups A and B tissues while histologically similar yet exhibited different miRNA expression). CONCLUSIONS This pilot study demonstrates feasibility of miRNAs to discriminate BE patients with and without dysplasia with reasonable clinical accuracy. However, the specific miRNAs need to be evaluated further in future prospective trials.
Collapse
|
12
|
Abstract
Barrett's esophagus is an acquired metaplastic abnormality in which the normal stratified squamous epithelium lining of the esophagus is replaced by an intestinal-like columnar epithelium. While in itself a benign and asymptomatic disorder, the clinical importance of this relatively common condition relates to its role as a precursor lesion to esophageal adenocarcinoma, the incidence of which has dramatically increased in Western populations in recent years. Although known to arise as a consequence of chronic gastroesophageal reflux, the cellular and molecular mechanisms underlying development Barrett's esophagus and its progression to cancer remain unclear.
Collapse
Affiliation(s)
- Wayne A Phillips
- Division of Cancer Surgery, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia.
| | | | | | | | | |
Collapse
|
13
|
Portela M, Casas-Tinto S, Rhiner C, López-Gay JM, Domínguez O, Soldini D, Moreno E. Drosophila SPARC Is a Self-Protective Signal Expressed by Loser Cells during Cell Competition. Dev Cell 2010; 19:562-73. [DOI: 10.1016/j.devcel.2010.09.004] [Citation(s) in RCA: 88] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2010] [Revised: 08/03/2010] [Accepted: 08/17/2010] [Indexed: 12/26/2022]
|
14
|
Kuester D, Guenther T, Biesold S, Hartmann A, Bataille F, Ruemmele P, Peters B, Meyer F, Schubert D, Bohr UR, Malfertheiner P, Lippert H, Silver ARJ, Roessner A, Schneider-Stock R. Aberrant methylation of DAPK in long-standing ulcerative colitis and ulcerative colitis-associated carcinoma. Pathol Res Pract 2010; 206:616-24. [PMID: 20630662 DOI: 10.1016/j.prp.2010.05.004] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/28/2010] [Accepted: 05/19/2010] [Indexed: 02/08/2023]
Abstract
Death-associated protein kinase (DAPK) has pro-apoptotic functions and participates in various apoptotic systems. DAPK acts as a tumor suppressor, and its inactivation by promoter hypermethylation has been frequently observed in various human cancers. As alterations of pro-apoptotic genes might cause instability in the balance of cell-turnover during chronic inflammatory processes, epigenetic silencing of DAPK might be involved in the carcinogenesis of ulcerative colitis-associated carcinoma (UCC). To evaluate the role of DAPK in the inflammation-driven carcinogenesis of ulcerative colitis (UC), we analyzed promoter hypermethylation and protein expression of DAPK using methylation-specific PCR and immunohistochemistry in 43 UCCs and paired UC-background mucosa, as well as in UC-background mucosa of 50 patients without UCC. The frequency of methylation of DAPK in UCCs was low (27.6%) compared to overall non-neoplastic UC-background mucosa (48.3%; p=0.02) and sporadic colorectal carcinoma (57.4%, p=0.019). The difference in the methylation frequency in UC-background mucosa in patients without UCC (54.2%), compared to those with UCC (40.0%), was not significant (p=0.141). Promoter methylation correlated significantly with decreased DAPK protein expression (p<0.001) and severity of inflammatory activity (p=0.024). In unmethylated UC-background mucosa, DAPK protein expression increased with activity of UC-associated inflammation, suggesting a protective role of the pro-apoptotic DAPK during the chronic inflammatory process of UC. Thus, inactivation of DAPK by promoter hypermethylation might be crucial for accumulation of DNA damage in inflamed mucosa of UC, and might therefore contribute to the initiation of the neoplastic process and development of UC-associated carcinoma.
Collapse
Affiliation(s)
- Doerthe Kuester
- Department of Pathology, Hepatology and Infectious Diseases, Otto-von-Guericke-University, 39120 Magdeburg, Germany.
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
15
|
Grimminger P, Vallböhmer D, Hoffmann A, Schulte C, Bollschweiler E, Schneider PM, Hölscher AH, Metzger R, Brabender J. Quantitative analysis of survivin RNA expression in blood as a non-invasive predictor of response to neoadjuvant radiochemotherapy in esophageal cancer. J Surg Oncol 2009; 100:447-51. [PMID: 19653263 DOI: 10.1002/jso.21355] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
BACKGROUND AND OBJECTIVES Analysis of survivin RNA expression in peripheral blood as a non-invasive molecular predictor of response to neoadjuvant radiochemotherapy in patients with locally advanced cancer of the esophagus. MATERIAL AND METHODS Blood samples were drawn from 29 patients with esophageal cancer prior to neoadjuvant radiochemotherapy. After extraction of cellular tumor-RNA from blood samples, quantitative expression analysis of survivin was done by quantitative real-time RT-PCR. RESULTS Twenty of 29 (69%) of patients showed a minor histopathological response and 9 of 29 (31%) showed a major-response to neadjuvant radiochemotherapy. RNA expression in blood of patients was detectable for survivin in 27.6%, and in 100% for beta-actin. The mean survivin expression was not significantly different between minor- and major-responders. No significant associations were detected between survivin expression levels and patients clinical variables. A high expression level for survivin was significantly associated with a minor-response to neoadjuvant treatment (P = 0.042). Relative survivin expression levels above 0.15 were not associated with major histopathological response (sensitivity: 35%; specificity: 100%). CONCLUSION Minor-response to the applied therapy was significantly associated with a high survivin RNA expression level in patient's blood. Survivin appears to be a specific non-invasive predictor of response to neoadjuvant therapy in esophageal cancer.
Collapse
Affiliation(s)
- Peter Grimminger
- Department of General-, Visceral-, and Tumor-Surgery, University of Cologne, 50931Cologne, Germany
| | | | | | | | | | | | | | | | | |
Collapse
|
16
|
Arnold SA, Brekken RA. SPARC: a matricellular regulator of tumorigenesis. J Cell Commun Signal 2009; 3:255-73. [PMID: 19809893 PMCID: PMC2778590 DOI: 10.1007/s12079-009-0072-4] [Citation(s) in RCA: 128] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2009] [Accepted: 09/14/2009] [Indexed: 12/11/2022] Open
Abstract
Although many clinical studies have found a correlation of SPARC expression with malignant progression and patient survival, the mechanisms for SPARC function in tumorigenesis and metastasis remain elusive. The activity of SPARC is context- and cell-type-dependent, which is highlighted by the fact that SPARC has shown seemingly contradictory effects on tumor progression in both clinical correlative studies and in animal models. The capacity of SPARC to dictate tumorigenic phenotype has been attributed to its effects on the bioavailability and signaling of integrins and growth factors/chemokines. These molecular pathways contribute to many physiological events affecting malignant progression, including extracellular matrix remodeling, angiogenesis, immune modulation and metastasis. Given that SPARC is credited with such varied activities, this review presents a comprehensive account of the divergent effects of SPARC in human cancers and mouse models, as well as a description of the potential mechanisms by which SPARC mediates these effects. We aim to provide insight into how a matricellular protein such as SPARC might generate paradoxical, yet relevant, tumor outcomes in order to unify an apparently incongruent collection of scientific literature.
Collapse
Affiliation(s)
- Shanna A Arnold
- Hamon Center for Therapeutic Oncology Research, Division of Surgical Oncology and Departments of Surgery and Pharmacology, University of Texas Southwestern Medical Center, 6000 Harry Hines Blvd., Dallas, TX 75390-8593 USA
| | | |
Collapse
|
17
|
Subramanian H, Roy HK, Pradhan P, Goldberg MJ, Muldoon J, Brand RE, Sturgis C, Hensing T, Ray D, Bogojevic A, Mohammed J, Chang JS, Backman V. Nanoscale cellular changes in field carcinogenesis detected by partial wave spectroscopy. Cancer Res 2009; 69:5357-63. [PMID: 19549915 DOI: 10.1158/0008-5472.can-08-3895] [Citation(s) in RCA: 104] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Understanding alteration of cell morphology in disease has been hampered by the diffraction-limited resolution of optical microscopy (>200 nm). We recently developed an optical microscopy technique, partial wave spectroscopy (PWS), which is capable of quantifying statistical properties of cell structure at the nanoscale. Here we use PWS to show for the first time the increase in the disorder strength of the nanoscale architecture not only in tumor cells but also in the microscopically normal-appearing cells outside of the tumor. Although genetic and epigenetic alterations have been previously observed in the field of carcinogenesis, these cells were considered morphologically normal. Our data show organ-wide alteration in cell nanoarchitecture. This seems to be a general event in carcinogenesis, which is supported by our data in three types of cancer: colon, pancreatic, and lung. These results have important implications in that PWS can be used as a new method to identify patients harboring malignant or premalignant tumors by interrogating easily accessible tissue sites distant from the location of the lesion.
Collapse
|
18
|
Abstract
The emergence of in vivo cancer biomarkers is promising tool for early detection, risk stratification, and therapeutic intervention in the esophagus, where adenocarcinoma is increasing at a rate that is faster than any other in industrialized nations. Exciting advances in target identification, probe development, and optical instrumentation are creating tremendous new opportunities for advancing techniques of molecular imaging. Progress in these areas is being made with small animal models of esophageal cancer using surgical approaches to induce reflux of acid and bile, and these findings are beginning to be evaluated in the clinic. Further identification of relevant targets, characterization of specific probes, and development of endoscopic imaging technologies are needed to further this direction in the field of molecular medicine. In the future, new methods that use in vivo cancer biomarkers for the early detection of neoplastic changes in the setting of Barrett's esophagus will become available.
Collapse
Affiliation(s)
- Shaoying Lu
- Department of General Surgery, First Affiliated Hospital, Medical School of Xi'an Jiaotong University, Xi'an Shaanxi, People's Republic of China
| | | |
Collapse
|
19
|
Podhajcer OL, Benedetti LG, Girotti MR, Prada F, Salvatierra E, Llera AS. The role of the matricellular protein SPARC in the dynamic interaction between the tumor and the host. Cancer Metastasis Rev 2008; 27:691-705. [PMID: 18542844 DOI: 10.1007/s10555-008-9146-7] [Citation(s) in RCA: 129] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Tumor growth is essentially the result of an evolving cross-talk between malignant and surrounding stromal cells (fibroblasts, endothelial cells and inflammatory cells). This heterogeneous mass of extracellular matrix and intermingled cells interact through cell-cell and cell-matrix contacts. Malignant cells also secrete soluble proteins that reach neighbor stromal cells, forcing them to provide the soil on which they will grow and metastasize. Different studies including expression array analysis identified the matricellular protein SPARC as a marker of poor prognosis in different cancer types. Further evidence demonstrated that high SPARC levels are often associated with the most aggressive and highly metastatic tumors. Here we describe the most recent evidence that links SPARC with human cancer progression, the controversy regarding its role in certain human cancers and the physiological processes in which SPARC is involved: epithelial-mesenchymal transition, immune surveillance and angiogenesis. Its relevance as a potential target in cancer therapy is also discussed.
Collapse
Affiliation(s)
- Osvaldo L Podhajcer
- Laboratory of Molecular and Cellular Therapy, Fundacion Instituto Leloir, University of Buenos Aires, National Council for Scientific and Technological Research (CONICET), Buenos Aires, Argentina.
| | | | | | | | | | | |
Collapse
|
20
|
Podhajcer OL, Benedetti L, Girotti MR, Prada F, Salvatierra E, Llera AS. The role of the matricellular protein SPARC in the dynamic interaction between the tumor and the host. Cancer Metastasis Rev 2008; 27:523-37. [PMID: 18459035 DOI: 10.1007/s10555-008-9135-x] [Citation(s) in RCA: 66] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Tumor growth is essentially the result of an evolving cross-talk between malignant and surrounding stromal cells (fibroblasts, endothelial cells and inflammatory cells). This heterogeneous mass of extracellular matrix and intermingled cells interact through cell-cell and cell-matrix contacts. Malignant cells also secrete soluble proteins that reach neighbor stromal cells, forcing them to provide the soil on which they will grow and metastasize. Different studies including expression array analysis identified the matricellular protein SPARC as a marker of poor prognosis in different cancer types. Further evidence demonstrated that high SPARC levels are often associated with the most aggressive and highly metastatic tumors. Here we describe the most recent evidence that links SPARC with human cancer progression, the controversy regarding its role in certain human cancers and the physiological processes in which SPARC is involved: epithelial-mesenchymal transition, immune surveillance and angiogenesis. Its relevance as a potential target in cancer therapy is also discussed.
Collapse
Affiliation(s)
- Osvaldo L Podhajcer
- Laboratory of Molecular and Cellular Therapy, Fundacion Instituto Leloir, University of Buenos Aires, National Council for Scientific and Technological Research (CONICET), Buenos Aires, Argentina.
| | | | | | | | | | | |
Collapse
|
21
|
Gertler R, Doll D, Maak M, Feith M, Rosenberg R. Telomere length and telomerase subunits as diagnostic and prognostic biomarkers in Barrett carcinoma. Cancer 2008; 112:2173-80. [PMID: 18348304 DOI: 10.1002/cncr.23419] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
BACKGROUND Maintenance of telomeres has been identified as an essential regulator of proliferative capacity and genomic integrity in malignant tumors. The authors evaluated telomere length and telomerase subunits, hTR and hTERT, as prognostic markers in patients with Barrett carcinoma. METHODS Telomere length was measured by Southern blot analysis and hTR expression and hTERT expression by real-time polymerase chain reaction in both cancer tissue and adjacent noncancerous Barrett mucosa in resection specimens from 46 patients with Barrett carcinoma (International Union Against Cancer [UICC] stages I-III). The median follow-up time of the surviving patients was 79 months. RESULTS Cancer tissue expressed more hTERT-mRNA than noncancerous mucosa (P < .05). Telomere lengths in cancer tissue and in noncancerous mucosa increased with higher pT category (P = .08 and P = .05, respectively). Twenty-one patients who died of tumor recurrence showed significantly longer telomeres in cancer tissue compared with 25 patients without tumor-related deaths (P < .05). Telomere length in both cancer tissue and in noncancerous mucosa and the telomere-length ratio cancer:noncancerous tissue were correlated with overall survival. In multivariate analysis, the telomere-length ratio proved to be an independent prognostic parameter (P < .02; relative risk of death 3.4; confidence interval, 1.3-8.9). Ten patients with telomere-length ratios >1.17 had a significantly poorer overall survival compared with 36 patients with telomere-length ratios <or=1.17 with 5-year survival rates of 0% and 60%, respectively (P < .02). CONCLUSIONS Telomere length and telomerase subunits were identified as diagnostic and prognostic biomarkers for Barrett carcinoma. Genetic alterations found in adjacent noncancerous mucosa suggested a "field effect" in Barrett carcinoma.
Collapse
Affiliation(s)
- Ralf Gertler
- Department of Surgery, Klinikum rechts der Isar, Technical University Munich, Munich, Germany.
| | | | | | | | | |
Collapse
|
22
|
Field defects in progression to gastrointestinal tract cancers. Cancer Lett 2007; 260:1-10. [PMID: 18164807 DOI: 10.1016/j.canlet.2007.11.027] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2007] [Revised: 11/13/2007] [Accepted: 11/14/2007] [Indexed: 12/19/2022]
Abstract
A field of defective tissue may represent a pre-malignant stage in progression to many cancers. However, field defects are often overlooked in studies of cancer progression through assuming tissue at some distance from the cancer is normal. We indicate, however, the generality of field defects in gastrointestinal cancers, including cancers of the oropharynx, esophagus, stomach, bile duct, pancreas, small intestine and colon/rectum. Common features of these field defects are reduced apoptosis competence, aberrant proliferation and genomic instability. These features are often associated with high bile acid exposure and may explain the association of dietary-related factors with cancer progression.
Collapse
|
23
|
Baguma-Nibasheka M, Barclay C, Li AW, Geldenhuys L, Porter GA, Blay J, Casson AG, Murphy PR. Selective cyclooxygenase-2 inhibition suppresses basic fibroblast growth factor expression in human esophageal adenocarcinoma. Mol Carcinog 2007; 46:971-80. [PMID: 17477358 DOI: 10.1002/mc.20339] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Inhibition of cyclooxygenase (COX)-2 is reported to suppress growth and induce apoptosis in human esophageal adenocarcinoma (EADC) cells, although the precise biologic mechanism is unclear. In this study we tested the hypothesis that the antitumor activity of COX-2 inhibitors may involve modulation of basic fibroblast growth factor (FGF-2), which is overexpressed in EADC. We evaluated the effects of NS-398, a selective COX-2 inhibitor, on FGF-2 expression and proliferation of EADC cell lines that express COX-2 and those that do not. We also correlated COX-2 and FGF-2 expression with clinico-pathologic findings and outcome in a well-characterized series of surgically resected EADC tissues. Seg-1 cells robustly expressed COX-2 and FGF-2, whereas Bic-1 cells expressed neither transcript. FGF-2 was reduced to undetectable levels in Seg-1 cells following NS-398 treatment, but increased within 4 h of drug removal. NS-398 significantly inhibited the growth of Seg-1 cells, and this effect was ameliorated by addition of exogenous FGF-2. In contrast, NS-398 had no effect on Bic-1 cell proliferation and FGF-2 alone had no effect on proliferation of either cell line. NS-398, or a neutralizing anti-FGF-2 antibody, induced apoptosis in Seg-1 cells, and these effects were inhibited by addition of exogenous FGF-2. COX-2 protein was strongly expressed in 46% (10/22) of EADCs, and was associated with a trend towards reduced disease-free survival. These findings indicate that the antitumor effects of COX-2 inhibition in EADC cells may be mediated via suppression of FGF-2, and that COX-2 may be a clinically relevant molecular marker in the management of human EADC.
Collapse
Affiliation(s)
- Mark Baguma-Nibasheka
- Department of Physiology and Biophysics, Faculty of Medicine, Dalhousie University, Halifax, Nova Scotia, Canada
| | | | | | | | | | | | | | | |
Collapse
|
24
|
Kuester D, Dar AA, Moskaluk, CC, Krueger S, Meyer F, Hartig R, Stolte M, Malfertheiner P, Lippert H, Roessner A, El-Rifai W, Schneider-Stock R. Early involvement of death-associated protein kinase promoter hypermethylation in the carcinogenesis of Barrett's esophageal adenocarcinoma and its association with clinical progression. Neoplasia 2007; 9:236-45. [PMID: 17401463 PMCID: PMC1838580 DOI: 10.1593/neo.06802] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2006] [Revised: 01/17/2007] [Accepted: 01/17/2007] [Indexed: 01/01/2023] Open
Abstract
Esophageal Barrett's adenocarcinoma (BA) develops through a multistage process, which is associated with the transcriptional silencing of tumor-suppressor genes by promoter CpG island hypermethylation. In this study, we explored the promoter hypermethylation and protein expression of proapoptotic death-associated protein kinase (DAPK) during the multistep Barrett's carcinogenesis cascade. Early BA and paired samples of premalignant lesions of 61 patients were analyzed by methylation-specific polymerase chain reaction and immunohistochemistry. For the association of clinicopathological markers and protein expression, an immunohistochemical tissue microarray analysis of 66 additional BAs of advanced tumor stages was performed. Hypermethylation of DAPK promoter was detected in 20% of normal mucosa, 50% of Barrett's metaplasia, 53% of dysplasia, and 60% of adenocarcinomas, and resulted in a marked decrease in DAPK protein expression (P < .01). The loss of DAPK protein was significantly associated with advanced depth of tumor invasion and advanced tumor stages (P < .001). Moreover, the severity of reflux esophagitis correlated significantly with the hypermethylation rate of the DAPK promoter (P < .003). Thus, we consider DAPK inactivation by promoter hypermethylation as an early event in Barrett's carcinogenesis and suggest that a decreased protein expression of DAPK likely plays a role in the development and progression of BA.
Collapse
Affiliation(s)
- Doerthe Kuester
- Department of Pathology, Otto-von-Guericke University Magdeburg, Magdeburg, Germany
| | - Altaf A Dar
- Department of Surgery and Vanderbilt-Ingram Cancer Center, University of Vanderbilt, Nashville, TN, USA
| | | | - Sabine Krueger
- Department of Pathology, Otto-von-Guericke University Magdeburg, Magdeburg, Germany
| | - Frank Meyer
- Department of urgery Otto-von-Guericke University Magdeburg, Magdeburg, Germany
| | - Roland Hartig
- Department of Immunology, Otto-von-Guericke University Magdeburg, Magdeburg, Germany
| | | | - Peter Malfertheiner
- Department of Gastroenterology, Hepatology and Infectious Disease, Otto-von-Guericke University Magdeburg, Magdeburg, Germany
| | - Hans Lippert
- Department of urgery Otto-von-Guericke University Magdeburg, Magdeburg, Germany
| | - Albert Roessner
- Department of Pathology, Otto-von-Guericke University Magdeburg, Magdeburg, Germany
| | - Wael El-Rifai
- Department of Surgery and Vanderbilt-Ingram Cancer Center, University of Vanderbilt, Nashville, TN, USA
| | | |
Collapse
|
25
|
Selaru FM, Wang S, Yin J, Schulmann K, Xu Y, Mori Y, Olaru AV, Sato F, Hamilton JP, Abraham JM, Schneider P, Greenwald BD, Brabender J, Meltzer SJ. Beyond Field Effect: Analysis of Shrunken Centroids in Normal Esophageal Epithelia Detects Concomitant Esophageal Adenocarcinoma. Bioinform Biol Insights 2007; 1:127-136. [PMID: 18425214 PMCID: PMC2323355 DOI: 10.4137/bbi.s311] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
BACKGROUND AND AIMS: Because of the extremely low neoplastic progression rate in Barrett's esophagus, it is difficult to diagnose patients with concomitant adenocarcinoma early in their disease course. If biomarkers existed in normal squamous esophageal epithelium to identify patients with concomitant esophageal adenocarcinoma, potential applications would be far-reaching. The aim of the current study was to identify global gene expression patterns in normal esophageal epithelium capable of revealing simultaneous esophageal adenocarcinoma, even located remotely in the esophagus. METHODS: Tissues comprised normal esophageal epithelia from 9 patients with esophageal adenocarcinoma, 8 patients lacking esophageal adenocarcinoma or Barrett's, and 6 patients with Barrett's esophagus alone. cDNA microarrays were performed, and pattern recognition in each of these subgroups was achieved using shrunken nearest centroid predictors. RESULTS: Our method accurately discriminated normal esophageal epithelia of 8/8 patients without esophageal adenocarcinoma or Barrett's esophagus and of 6/6 patients with Barrett's esophagus alone from normal esophageal epithelia of 9/9 patients with Barrett's esophagus and concomitant esophageal adenocarcinoma. Moreover, we identified genes differentially expressed between the above subgroups. Thus, based on their corresponding normal esophageal epithelia alone, our method accurately diagnosed patients who had concomitant esophageal adenocarcinoma. CONCLUSIONS: These global gene expression patterns, along with individual genes culled from them, represent potential biomarkers for the early diagnosis of esophageal adenocarcinoma from normal esophageal epithelia. Genes discovered in normal esophagus that are differentially expressed in patients with vs. without esophageal adenocarcinoma merit further pursuit in molecular genetic, functional, and therapeutic interventional studies.
Collapse
Affiliation(s)
- Florin M. Selaru
- Gastroenterology Division, Department of Medicine, the Johns Hopkins University School of Medicine, Baltimore, MD 21231
| | - Suna Wang
- Gastroenterology Division, Department of Medicine, University of Maryland School of Medicine and Baltimore VA Hospital and Greenebaum Cancer Center, Baltimore, MD 21201
| | - Jing Yin
- Gastroenterology Division, Department of Medicine, University of Maryland School of Medicine and Baltimore VA Hospital and Greenebaum Cancer Center, Baltimore, MD 21201
| | - Karsten Schulmann
- Division of Gastroenterology, Department of Medicine, Ruhr-University Bochum, Bochum, Germany
| | - Yan Xu
- Gastroenterology Division, Department of Medicine, University of Maryland School of Medicine and Baltimore VA Hospital and Greenebaum Cancer Center, Baltimore, MD 21201
| | - Yuriko Mori
- Gastroenterology Division, Department of Medicine, the Johns Hopkins University School of Medicine, Baltimore, MD 21231
| | - Alexandru V. Olaru
- Gastroenterology Division, Department of Medicine, the Johns Hopkins University School of Medicine, Baltimore, MD 21231
| | - Fumiaki Sato
- Gastroenterology Division, Department of Medicine, the Johns Hopkins University School of Medicine, Baltimore, MD 21231
| | - James P. Hamilton
- Gastroenterology Division, Department of Medicine, the Johns Hopkins University School of Medicine, Baltimore, MD 21231
| | - John M. Abraham
- Gastroenterology Division, Department of Medicine, the Johns Hopkins University School of Medicine, Baltimore, MD 21231
| | - Paul Schneider
- Department of Visceral and Vascular Surgery, University of Cologne, Germany
| | - Bruce D. Greenwald
- Gastroenterology Division, Department of Medicine, University of Maryland School of Medicine and Baltimore VA Hospital and Greenebaum Cancer Center, Baltimore, MD 21201
| | - Jan Brabender
- Department of Visceral and Vascular Surgery, University of Cologne, Germany
| | - Stephen J. Meltzer
- Gastroenterology Division, Department of Medicine, the Johns Hopkins University School of Medicine, Baltimore, MD 21231
| |
Collapse
|
26
|
Mehta S, Boddy A, Johnson IT, Rhodes M. Systematic review: Cyclo-oxygenase-2 in human oesophageal adenocarcinogenesis. Aliment Pharmacol Ther 2006; 24:1321-31. [PMID: 17059513 DOI: 10.1111/j.1365-2036.2006.03119.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
BACKGROUND Published in vitro and animal in vivo studies have demonstrated that cyclo-oxygenase-2 plays an important role during oesophageal adenocarcinogenesis. However, the extent to which these studies are directly relevant to events in the human lower oesophagus is questionable. AIM To perform a systematic review of all available human studies that have evaluated levels of cyclo-oxygenase-2 expression during the progression from Barrett's metaplasia to oesophageal adenocarcinoma. METHODS A literature search was performed to identify all studies which qualitatively or quantitatively assessed cyclo-oxygenase-2 protein or gene expression in either Barrett's, dysplastic or adenocarcinoma tissue in humans. RESULTS A total of 27 studies met the inclusion criteria. There was general agreement that cyclo-oxygenase-2 was either absent or very weakly expressed in normal oesophageal squamous mucosa, but considerable disagreement regarding the presence of cyclo-oxygenase-2 in Barrett's and low-grade dysplasia. All studies agreed that high-grade dysplasia and adenocarcinoma expressed cyclo-oxygenase-2 to some extent although levels varied considerably between tissue samples. CONCLUSIONS There is conflicting evidence in the literature for cyclo-oxygenase-2 playing an important role in early oesophageal adenocarcinogenesis. Other non-cyclo-oxygenase-2 targets may account for the epidemiological data supporting the use of non-steroidal anti-inflammatory drugs in the chemoprevention of oesophageal adenocarcinoma.
Collapse
Affiliation(s)
- S Mehta
- Department of Upper Gastrointestinal Surgery, Norfolk and Norwich University Hospital, Colney Lane, Norwich, UK
| | | | | | | |
Collapse
|
27
|
Odin E, Wettergren Y, Carlsson G, Danenberg PV, Termini A, Willén R, Gustavsson B. Expression and clinical significance of methylenetetrahydrofolate reductase in patients with colorectal cancer. Clin Colorectal Cancer 2006; 5:344-9. [PMID: 16512993 DOI: 10.3816/ccc.2006.n.004] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
BACKGROUND The aim of the study was to investigate the influence of methylenetetrahydrofolate reductase (MTHFR) gene expression levels and MTHFR polymorphism C677T on the outcome of patients with colorectal cancer (CRC). Furthermore, we wanted to evaluate the interaction between MTHFR and thymidylate synthase (TS) and folylpolyglutamate synthase (FPGS) and to investigate the impact of folate concentration on patients with CRC with different MTHFR genotypes. PATIENTS AND METHODS The frequency of MTHFR polymorphism C677T was determined (n = 147), and gene expression levels of MTHFR, TS, and FPGS were quantified with real-time polymerase chain reaction (n = 157). Reduced folates in tissue were measured with a binding assay (n = 40). RESULTS We observed a significantly lower concentration of tetrahydrofolate (THF) in patients with CT or TT genotypes compared with patients having the CC genotype. Twenty-six patients with Dukes A to C tumors who had not been subjected to chemotherapy relapsed. Out of these, 18 had CT or TT genotypes, and only 8 had the CC genotype (P = 0.045). Furthermore, 75 patients did not relapse, and out of these, 35 had CT or TT genotypes, and 40 had the CC genotype. The relative gene expression level of MTHFR in patients subgrouped by CC and CT or TT genotypes was significantly lower in carcinomas compared with adjacent mucosa (P < 0.0001 and P < 0.0001, respectively). A significant difference in MTHFR expression level was also observed according to MTHFR genotype in the tumor but not in adjacent mucosa. The MTHFR gene expression level in mucosa was a prognostic parameter independent of the clinicopathologic factors with regard to survival for patients with MTHFR C677T mutation. CONCLUSION Our results showed that it is possible to identify patients with CRC with a higher risk for relapse. Furthermore, patients with a mutant genotype in combination with low MTHFR expression have a poor clinical outcome.
Collapse
Affiliation(s)
- Elisabeth Odin
- Department of General Surgery, Sahlgrenska University Hospital/ostra, Goteborg, Sweden.
| | | | | | | | | | | | | |
Collapse
|
28
|
Liu XJ, Wang BM, Yan XY, Liu WT, Lu ZS, Zhang J. Expression of COX-2 in Barrett's esophagus and esophageal adenocarcinoma and its significance. Shijie Huaren Xiaohua Zazhi 2005; 13:2314-2317. [DOI: 10.11569/wcjd.v13.i19.2314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To explore the significance of cyclooxygenase-2 (COX-2) expression and prostaglandin E2 (PGE2) level in human Barrett's esophagus (BE) and esophageal adenocarcinoma (EAC).
METHODS: The expression of COX-2 mRNA, the distribution of COX-2 protein, and the content of PGE2 were detected in the endoscopic biopsies of from BE (n = 16), EAC (n = 17), and normal controls (n = 20) by reverse transcription polymerase chain reaction (RT-PCR), immunohistochemistry, and radioimmunoassay (RIA), respectively.
RESULTS: The positive rate of COX-2 mRNA was 87.50% (14/16) and 88.24% (15/17) in BE and EAC patients, respectively, which were significantly higher than that in the normal controls (25%, P < 0.01). Furthermore, COX-2 protein was expressed in the epithelial cytoplasm of BE patients (81.25%, 13/16) and the plasm of cancer cells in EAC patients (76.47%, 13/17), which were significantly higher than that in the normal controls (20.00%, 4/20). The contents of PGE2 (pg/mg) in BE (541.41 ± 34.30) and EAC patients (559.22 ± 37.77) were also significantly higher than those in the normal controls (357.10 ± 37.58) (P < 0.05). No significant difference was found between BE and EAC patients in COX-2 mRNA, protein expression and PGE2 content (P>0.05).
CONCLUSION: COX-2 mRNA and its protein are overexpressed, and the level of PGE2 is increased in BE and EAC group. COX-2 and PGE2 may be involved in the development of Barrett's esophagus and esophageal adenocarcinoma.
Collapse
|