1
|
Zheng BH, Shen S, Wong KF, Gong ZJ, Sun WT, Ni XJ, Wang JW, Hu MY, Liu H, Ni XL, Liu HB, Luk JM, Suo T. Clinical correlation of cadherin-17 marker with advanced tumor stages and poor prognosis of cholangiocarcinoma. J Surg Oncol 2021; 123:1253-1262. [PMID: 33524213 DOI: 10.1002/jso.26399] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Revised: 01/07/2021] [Accepted: 01/17/2021] [Indexed: 12/13/2022]
Abstract
BACKGROUND AND OBJECTIVES In this retrospective study, we examined the CA17 tissue expression and analyzed its clinical significance in cholangiocarcinoma (CCA). MATERIALS AND METHODS Immunohistochemistry was performed to assess CA17 expression on tissue microarrays in a training cohort enrolling 120 CCA patients and a validation cohort comprising 60 CCA patients. Image pro plus was applied to score the staining intensity and expression level of CA17 marker. Kaplan-Meier analysis, Cox's proportional hazards regression, and nomogram were applied to evaluate the prognostic significance of CA17. RESULTS CA17 cancer biomarker over-expression was significantly observed in CCA compared to their non-tumor counterparts, and positively correlated with aggressive tumor phenotypes, like lymph node metastasis. Meanwhile, patients with high expression of CA17 correlated with worse postoperative overall survival (OS) and recurrence-free survival. Besides, multivariate analysis identified that CA17 expression was an independent prognostic factor for cholangiocarcinoma patients, which indicated that the CA17 could be more efficient than serum CA19-9 in predicting the OS of CCA patients. Notably, the nomogram integrating CA17 expression had better prognostic performance as compared with current TNM staging systems. CONCLUSION CA17 was an independent adverse prognostic factor for CCA patients' survival, which may serve as a promising prognostic biomarker for CCA patients.
Collapse
Affiliation(s)
- Bo-Hao Zheng
- Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
- Biliary Tract Disease Center of Zhongshan Hospital, Fudan University, Shanghai, China
- Cancer Center, Zhongshan Hospital, Fudan University, Shanghai, China
- Biliary Tract Disease Institute, Fudan University, Shanghai, China
| | - Sheng Shen
- Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
- Biliary Tract Disease Center of Zhongshan Hospital, Fudan University, Shanghai, China
- Cancer Center, Zhongshan Hospital, Fudan University, Shanghai, China
- Biliary Tract Disease Institute, Fudan University, Shanghai, China
| | | | - Zi-Jun Gong
- Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
- Biliary Tract Disease Center of Zhongshan Hospital, Fudan University, Shanghai, China
- Cancer Center, Zhongshan Hospital, Fudan University, Shanghai, China
- Biliary Tract Disease Institute, Fudan University, Shanghai, China
| | - Wen-Tao Sun
- Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
- Biliary Tract Disease Center of Zhongshan Hospital, Fudan University, Shanghai, China
- Cancer Center, Zhongshan Hospital, Fudan University, Shanghai, China
- Biliary Tract Disease Institute, Fudan University, Shanghai, China
| | - Xiao-Jian Ni
- Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
- Biliary Tract Disease Center of Zhongshan Hospital, Fudan University, Shanghai, China
- Cancer Center, Zhongshan Hospital, Fudan University, Shanghai, China
- Biliary Tract Disease Institute, Fudan University, Shanghai, China
| | - Ji-Wen Wang
- Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
- Biliary Tract Disease Center of Zhongshan Hospital, Fudan University, Shanghai, China
- Cancer Center, Zhongshan Hospital, Fudan University, Shanghai, China
- Biliary Tract Disease Institute, Fudan University, Shanghai, China
| | - Mei-Yu Hu
- Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
- Biliary Tract Disease Center of Zhongshan Hospital, Fudan University, Shanghai, China
- Cancer Center, Zhongshan Hospital, Fudan University, Shanghai, China
- Biliary Tract Disease Institute, Fudan University, Shanghai, China
| | - Han Liu
- Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
- Biliary Tract Disease Center of Zhongshan Hospital, Fudan University, Shanghai, China
- Cancer Center, Zhongshan Hospital, Fudan University, Shanghai, China
- Biliary Tract Disease Institute, Fudan University, Shanghai, China
| | - Xiao-Ling Ni
- Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
- Biliary Tract Disease Center of Zhongshan Hospital, Fudan University, Shanghai, China
- Cancer Center, Zhongshan Hospital, Fudan University, Shanghai, China
- Biliary Tract Disease Institute, Fudan University, Shanghai, China
| | - Hou-Bao Liu
- Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
- Biliary Tract Disease Center of Zhongshan Hospital, Fudan University, Shanghai, China
- Cancer Center, Zhongshan Hospital, Fudan University, Shanghai, China
- Biliary Tract Disease Institute, Fudan University, Shanghai, China
| | - John M Luk
- Arbele Limited, Biotech Center, Hong Kong, China
| | - Tao Suo
- Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
- Biliary Tract Disease Center of Zhongshan Hospital, Fudan University, Shanghai, China
- Cancer Center, Zhongshan Hospital, Fudan University, Shanghai, China
- Biliary Tract Disease Institute, Fudan University, Shanghai, China
| |
Collapse
|
2
|
Gray ME, Sotomayor M. Crystal structure of the nonclassical cadherin-17 N-terminus and implications for its adhesive binding mechanism. Acta Crystallogr F Struct Biol Commun 2021; 77:85-94. [PMID: 33682793 PMCID: PMC7938635 DOI: 10.1107/s2053230x21002247] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Accepted: 02/25/2021] [Indexed: 12/27/2022] Open
Abstract
The cadherin superfamily of calcium-dependent cell-adhesion proteins has over 100 members in the human genome. All members of the superfamily feature at least a pair of extracellular cadherin (EC) repeats with calcium-binding sites in the EC linker region. The EC repeats across family members form distinct complexes that mediate cellular adhesion. For instance, classical cadherins (five EC repeats) strand-swap their N-termini and exchange tryptophan residues in EC1, while the clustered protocadherins (six EC repeats) use an extended antiparallel `forearm handshake' involving repeats EC1-EC4. The 7D-cadherins, cadherin-16 (CDH16) and cadherin-17 (CDH17), are the most similar to classical cadherins and have seven EC repeats, two of which are likely to have arisen from gene duplication of EC1-2 from a classical ancestor. However, CDH16 and CDH17 lack the EC1 tryptophan residue used by classical cadherins to mediate adhesion. The structure of human CDH17 EC1-2 presented here reveals features that are not seen in classical cadherins and that are incompatible with the EC1 strand-swap mechanism for adhesion. Analyses of crystal contacts, predicted glycosylation and disease-related mutations are presented along with sequence alignments suggesting that the novel features in the CDH17 EC1-2 structure are well conserved. These results hint at distinct adhesive properties for 7D-cadherins.
Collapse
Affiliation(s)
- Michelle E. Gray
- Department of Chemistry and Biochemistry, The Ohio State University, 484 West 12th Avenue, Columbus, OH 43210, USA
| | - Marcos Sotomayor
- Department of Chemistry and Biochemistry, The Ohio State University, 484 West 12th Avenue, Columbus, OH 43210, USA
| |
Collapse
|
3
|
Chang YY, Yu LCH, Yu IS, Jhuang YL, Huang WJ, Yang CY, Jeng YM. Deletion of cadherin-17 enhances intestinal permeability and susceptibility to intestinal tumour formation. J Pathol 2018; 246:289-299. [PMID: 30047135 DOI: 10.1002/path.5138] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2018] [Revised: 04/28/2018] [Accepted: 06/05/2018] [Indexed: 01/08/2023]
Abstract
Cadherin-17 is an adhesion molecule expressed specifically in intestinal epithelial cells. It is frequently underexpressed in human colorectal cancer. The physiological function of cadherin-17 and its role in tumourigenesis have not yet been determined. We used the transcription activator-like effector nuclease technique to generate a Cdh17 knockout (KO) mouse model. Intestinal tissues were analysed with histological, immunohistochemical and ultrastructural methods. Colitis was induced by oral administration of dextran sulphate sodium (DSS), and, to study effects on intestinal tumourigenesis, mice were given azoxymethane (AOM) and DSS to induce colitis-associated cancer. Cdh17 KO mice were viable and fertile. The histology of their small and large intestines was similar to that of wild-type mice. The junctional architecture of the intestinal epithelium was preserved. The loss of cadherin-17 resulted in increased permeability and susceptibility to DSS-induced colitis. The AOM/DSS model demonstrated that Cdh17 KO enhanced tumour formation and progression in the intestine. Increased nuclear translocation of Yap1, but not of β-catenin, was identified in the tumours of Cdh17 KO mice. In conclusion, cadherin-17 plays a crucial role in intestinal homeostasis by limiting the permeability of the intestinal epithelium. Cadherin-17 is also a tumour suppressor for intestinal epithelia. Copyright © 2018 Pathological Society of Great Britain and Ireland. Published by John Wiley & Sons, Ltd.
Collapse
Affiliation(s)
- Ya-Yun Chang
- Graduate Institute of Pathology, National Taiwan University, Taipei, Taiwan
| | - Linda Chia-Hui Yu
- Graduate Institute of Physiology, National Taiwan University, Taipei, Taiwan
| | - I-Shing Yu
- Laboratory Animal Centre, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Yu-Lin Jhuang
- Graduate Institute of Pathology, National Taiwan University, Taipei, Taiwan.,Department of Pathology, National Taiwan University Hospital, Taipei, Taiwan
| | - Wei-Ju Huang
- Graduate Institute of Pathology, National Taiwan University, Taipei, Taiwan.,Department of Oral Hygiene, Hsin-Sheng College of Medical Care and Management, Taoyuan, Taiwan
| | - Ching-Yao Yang
- Department of Surgery, National Taiwan University Hospital, Taipei, Taiwan
| | - Yung-Ming Jeng
- Graduate Institute of Pathology, National Taiwan University, Taipei, Taiwan.,Department of Pathology, National Taiwan University Hospital, Taipei, Taiwan
| |
Collapse
|
4
|
Hendrickx APA, van de Kamer D, Willems RJL. Primary murine mucosal response during cephalosporin-induced intestinal colonization by Enterococcus faecium. Microbiologyopen 2018; 7:e00602. [PMID: 29484836 PMCID: PMC6182561 DOI: 10.1002/mbo3.602] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2017] [Revised: 01/14/2018] [Accepted: 01/15/2018] [Indexed: 12/19/2022] Open
Abstract
Hospitalized patients are often administered antibiotics that perturb the gastrointestinal commensal microbiota, leading to outgrowth of antibiotic-resistant bacteria, like multidrug-resistant Enterococcus faecium, subsequent spread, and eventually infections. However, the events that occur at the initial stage of intestinal colonization and outgrowth by multidrug-resistant E. faecium within the antibiotic-treated host have not been thoroughly studied. Here, we describe and visualize that only 6 hr after cephalosporin treatment of mice, the Muc-2 mucus layer is reduced and E-cadherin junctions were altered. In contrast, the cadherin-17 junctions were unaffected in antibiotic treated mice during E. faecium colonization or in untreated animals. E. faecium was capable to colonize the mouse colon already within 6 hr after inoculation, and agglutinated at the apical side of the intestinal epithelium. During the primary stage of gastrointestinal colonization the number of IgA+ cells and CD11b+ IgA+ cells increased in the lamina propria of the colon and mediated an elevated IgA response upon E. faecium colonization.
Collapse
Affiliation(s)
- Antoni P A Hendrickx
- Department of Medical Microbiology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Denise van de Kamer
- Department of Medical Microbiology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Rob J L Willems
- Department of Medical Microbiology, University Medical Center Utrecht, Utrecht, The Netherlands
| |
Collapse
|
5
|
Bian T, Zhao J, Feng J, Zhang Q, Qian L, Liu J, Jiang D, Liu Y, Zhang J. Combination of cadherin-17 and SATB homeobox 2 serves as potential optimal makers for the differential diagnosis of pulmonary enteric adenocarcinoma and metastatic colorectal adenocarcinoma. Oncotarget 2017; 8:63442-63452. [PMID: 28969003 PMCID: PMC5609935 DOI: 10.18632/oncotarget.18828] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2017] [Accepted: 06/02/2017] [Indexed: 12/24/2022] Open
Abstract
Background Pulmonary enteric adenocarcinoma (PEAC), a rare type of non-small cell lung cancer, has similar histological and immunohistochemical morphology to colorectal adenocarcinoma. Cadherin-17 (CDH17) and SATB homeobox 2 (SATB2) immunoexpression have recently been demonstrated in colorectal adenocarcinoma. In this study, we evaluated the value of CDH17 and SATB2 in the diagnosis of pulmonary enteric adenocarcinoma and metastatic colorectal adenocarcinoma. Methods A total of 13 PEAC cases and 27 metastatic colorectal adenocarcinoma cases were enrolled in our cohort study. We analyzed the expressions of CK7, CK20, CDX-2, villin, cadherin-17 (CDH17), and SATB homeobox 2 (SATB2) using immunohistochemistry. Staining intensity and percentage of positive-staining cells were recorded. Sensitivity and specificity values for immunostains, individually and in combination, were computed and compared. Results Combining CDH17 and SATB2 resulted in high sensitivity (76.92%) and specificity (100%). In our study, the use of CK7+, napsin A+, TTF-1+, napsin A+TTF-1+ in combination with CDH17-/SATB2- had a higher area under the curve compared to the combination CDH17-/SATB2-. However, no significant differences were observed between the combination CDH17-/SATB2- and other combinations (P>0.05). Conclusions In combination, CDH17 and SATB2 serve as potential optimal markers for the differential diagnosis of PEAC and metastatic colorectal adenocarcinoma.
Collapse
Affiliation(s)
- Tingting Bian
- Department of Pathology, Affiliated Hospital of Nantong University, Nantong, Jiangsu, P.R. China
| | - Jinli Zhao
- Department of Radiology, Affiliated Hospital of Nantong University, Nantong, Jiangsu, P.R. China
| | - Jia Feng
- Department of Pathology, Affiliated Hospital of Nantong University, Nantong, Jiangsu, P.R. China
| | - Qing Zhang
- Department of Pathology, Affiliated Hospital of Nantong University, Nantong, Jiangsu, P.R. China
| | - Li Qian
- Department of Pathology, Affiliated Hospital of Nantong University, Nantong, Jiangsu, P.R. China
| | - Jian Liu
- Department of Chemotherapy, Affiliated Hospital of Nantong University, Nantong, Jiangsu, P.R. China
| | - Daishan Jiang
- Department of Emergency Medicine, Affiliated Hospital of Nantong University, Nantong, Jiangsu, P.R. China
| | - Yifei Liu
- Department of Pathology, Affiliated Hospital of Nantong University, Nantong, Jiangsu, P.R. China
| | - Jianguo Zhang
- Department of Pathology, Affiliated Hospital of Nantong University, Nantong, Jiangsu, P.R. China
| |
Collapse
|
6
|
Weth A, Dippl C, Striedner Y, Tiemann-Boege I, Vereshchaga Y, Golenhofen N, Bartelt-Kirbach B, Baumgartner W. Water transport through the intestinal epithelial barrier under different osmotic conditions is dependent on LI-cadherin trans-interaction. Tissue Barriers 2017; 5:e1285390. [PMID: 28452574 PMCID: PMC5501135 DOI: 10.1080/21688370.2017.1285390] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
In the intestine water has to be reabsorbed from the chymus across the intestinal epithelium. The osmolarity within the lumen is subjected to high variations meaning that water transport often has to take place against osmotic gradients. It has been hypothesized that LI-cadherin is important in this process by keeping the intercellular cleft narrow facilitating the buildup of an osmotic gradient allowing water reabsorption. LI-cadherin is exceptional among the cadherin superfamily with respect to its localization along the lateral plasma membrane of epithelial cells being excluded from adherens junction. Furthermore it has 7 but not 5 extracellular cadherin repeats (EC1-EC7) and a small cytosolic domain. In this study we identified the peptide VAALD as an inhibitor of LI-cadherin trans-interaction by modeling the structure of LI-cadherin and comparison with the known adhesive interfaces of E-cadherin. This inhibitory peptide was used to measure LI-cadherin dependency of water transport through a monolayer of epithelial CACO2 cells under various osmotic conditions. If LI-cadherin trans-interaction was inhibited by use of the peptide, water transport from the luminal to the basolateral side was impaired and even reversed in the case of hypertonic conditions whereas no effect could be observed at isotonic conditions. These data are in line with a recently published model predicting LI-cadherin to keep the width of the lateral intercellular cleft small. In this narrow cleft a high osmolarity can be achieved due to ion pumps yielding a standing osmotic gradient allowing water absorption from the gut even if the faeces is highly hypertonic.
Collapse
Affiliation(s)
- Agnes Weth
- a Institute of Biomedical Mechatronics, Johannes Kepler University of Linz , Linz , Austria
| | - Carsten Dippl
- a Institute of Biomedical Mechatronics, Johannes Kepler University of Linz , Linz , Austria
| | - Yasmin Striedner
- b Institute of Biophysics, Johannes Kepler University of Linz , Linz , Austria
| | - Irene Tiemann-Boege
- b Institute of Biophysics, Johannes Kepler University of Linz , Linz , Austria
| | - Yana Vereshchaga
- a Institute of Biomedical Mechatronics, Johannes Kepler University of Linz , Linz , Austria
| | - Nikola Golenhofen
- c Institute of Anatomy and Cell Biology, University of Ulm , Ulm , Germany
| | | | - Werner Baumgartner
- a Institute of Biomedical Mechatronics, Johannes Kepler University of Linz , Linz , Austria
| |
Collapse
|
7
|
Baumgartner W. Possible roles of LI-Cadherin in the formation and maintenance of the intestinal epithelial barrier. Tissue Barriers 2014; 1:e23815. [PMID: 24665380 PMCID: PMC3879124 DOI: 10.4161/tisb.23815] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2012] [Revised: 01/29/2013] [Accepted: 01/29/2013] [Indexed: 02/07/2023] Open
Abstract
LI-cadherin belongs to the so called 7D-cadherins, exceptional members of the cadherin superfamily which are characterized by seven extracellular cadherin repeats and a small cytosolic domain. Under physiological conditions LI-cadherin is expressed in the intestine and colon in human and mouse and in the rat also in hepatocytes. LI-cadherin was shown to act as a functional Ca2+-dependent adhesion molecule, linking neighboring cells and a lot of biophysical and biochemical parameters were determined in the last time. It is also known that dysregulated LI-cadherin expression can be found in a variety of diseases. Although there are several hypothesis and theoretical models concerning the function of LI-cadherin, the physiological role of LI-cadherin is still enigmatic.
Collapse
Affiliation(s)
- Werner Baumgartner
- Department of Cellular Neurobionics; RWTH-Aachen University; Aachen; Germany
| |
Collapse
|
8
|
Wang J, Kang WM, Yu JC, Liu YQ, Meng QB, Cao ZJ. Cadherin-17 induces tumorigenesis and lymphatic metastasis in gastric cancer through activation of NFκB signaling pathway. Cancer Biol Ther 2013; 14:262-70. [PMID: 23298905 DOI: 10.4161/cbt.23299] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Cadherin-17 (CDH17), as a structurally unique member of the cadherin superfamily, has been identified to predict a poor prognosis for gastric cancer (GC). Our previous study demonstrated the positive correlation between CDH17 and lymph node micrometastasis in GC. We sought to further identify the role of CDH17 in the tumorigenesis and lymphatic metastasis of GC. Hence, we inhibited the CDH17 expression in MKN-45 gastric cancer cells by using RNA interference. Consequently, the malignant potency of cancer cells was evaluated, and the change in NFκB signaling pathway was also probed. Tumor growth and lymphatic metastasis model were conducted in nude mice to confirm the hypothesis. Downregulation of CDH17 not only suppressed the proliferation, adherence and invasion potency of MKN-45 cells, but also induced cell cycle arrest. Meanwhile, the NFκB signaling pathway was inactivated as well, with the reductions of downstream proteins including VEGF-C and MMP-9. Moreover, silencing CDH17 inhibited tumor growth in vivo significantly, and there was no lymph node metastasis detected in the mice without CDH17 expression, as opposed to the positive nodes found in controls. CDH17 is a novel oncogene in gastric cancer cells, which is associated with lymphatic metastasis and proliferation strongly. The inactivation of NFκB signaling pathway might be involved in targeting CDH17 in GC. On the whole, CDH17 is proposed to serve as a biomarker and attractive therapeutic target in GC.
Collapse
Affiliation(s)
- Jin Wang
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | | | | | | | | | | |
Collapse
|
9
|
Lee HJ, Nam KT, Park HS, Kim MA, LaFleur BJ, Aburatani H, Yang HK, Kim WH, Goldenring JR. Gene expression profiling of metaplastic lineages identifies CDH17 as a prognostic marker in early stage gastric cancer. Gastroenterology 2010; 139:213-25.e3. [PMID: 20398667 PMCID: PMC2917327 DOI: 10.1053/j.gastro.2010.04.008] [Citation(s) in RCA: 114] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/28/2009] [Revised: 03/28/2010] [Accepted: 04/02/2010] [Indexed: 01/10/2023]
Abstract
BACKGROUND & AIMS Intestinal metaplasia (IM) and spasmolytic polypeptide-expressing metaplasia (SPEM) are precursors to gastric carcinogenesis. We sought to identify molecular biomarkers of gastric metaplasias and gastric cancer by gene expression profiling of metaplastic lesions from patients. METHODS Complementary DNA microarray analysis was performed on IM and SPEM cells isolated from patient samples using laser capture microdissection. Up-regulated transcripts in metaplastic lesions were confirmed by immunostaining analysis in IM, SPEM, and gastric cancer tissues. Proteins that were highly expressed specifically in gastric cancer tissues were analyzed for their association with survival in a test set (n = 450) and a validation set (n = 502) of samples from gastric cancer patients. RESULTS Compared with normal chief cells, 858 genes were differentially expressed in IM or SPEM samples. Immunostaining was detected for 12 proteins, including 3 new markers of IM (ACE2, LGALS4, AKR1B10) and 3 of SPEM (OLFM4, LYZ, DPCR1). Of 13 proteins expressed in IM or SPEM, 8 were expressed by 17%-50% of human gastric cancer tissues (MUC13, OLFM4, CDH17, KRT20, MUC5AC, LGALS4, AKR1B10, REG4). Expression of CDH17 or MUC13 correlated with patient survival in the test and validation sets. Multivariate analysis showed that CDH17 was an independent prognostic factor in patients with stage I or node-negative disease. CONCLUSIONS We identified several novel biomarkers for IM, SPEM, and gastric cancer using gene expression profiling of human metaplastic lesions. Expression of CDH17 and MUC13 was up-regulated in gastric cancer tissues. CDH17 is a promising prognostic marker for early stage gastric cancer.
Collapse
Affiliation(s)
- Hyuk-Joon Lee
- Department of Surgery and Department of Cell and Developmental Biology, Vanderbilt University College of Medicine, Nashville, Tennessee,Department of Surgery and Cancer Research Institute, Seoul National University College of Medicine, Seoul, Korea
| | - Ki Taek Nam
- Department of Surgery and Department of Cell and Developmental Biology, Vanderbilt University College of Medicine, Nashville, Tennessee,Nashville Department of Veterans Affairs Medical Center, Nashville, Tennessee
| | - Heae Surng Park
- Department of Pathology, Seoul National University College of Medicine, Seoul, Korea
| | - Min A Kim
- Department of Pathology, Seoul National University College of Medicine, Seoul, Korea
| | - Bonnie J. LaFleur
- Division of Epidemiology and Biostatistics, University of Arizona, Tucson, Arizona
| | | | - Han-Kwang Yang
- Department of Surgery and Cancer Research Institute, Seoul National University College of Medicine, Seoul, Korea
| | - Woo Ho Kim
- Department of Pathology and Cancer Research Institute, Seoul National University College of Medicine, Seoul, Korea
| | - James R. Goldenring
- Department of Surgery and Department of Cell and Developmental Biology, Vanderbilt University College of Medicine, Nashville, Tennessee,Nashville Department of Veterans Affairs Medical Center, Nashville, Tennessee
| |
Collapse
|