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Li J, Tao HS, Yuan T, Huang ZY, Zhang EL. Intelectin-1 is a novel prognostic biomarker for hepatocellular carcinoma. Medicine (Baltimore) 2023; 102:e36474. [PMID: 38050235 PMCID: PMC10695524 DOI: 10.1097/md.0000000000036474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Accepted: 11/14/2023] [Indexed: 12/06/2023] Open
Abstract
The molecular mechanisms of hepatocellular carcinoma (HCC) are still not well understood. Gene microarray analysis showed that the expression of Intelectin-1 (ITLN-1) in tumor-adjacent normal liver tissue was 454.8 times higher than in the corresponding cancer tissue. ITLN-1 is a secreted soluble glycoprotein which has been reported to be associated with the occurrence and development of various tumor types. However, the prognostic significance of ITLN-1 in HCC remain unclear. Real-time fluorescence quantitative polymerase chain reaction was used to investigate 149 liver cancer cases for ITLN-1 mRNA expression. Immunohistochemistry and western blot analysis were used to ascertain protein expression of ITLN-1 in cancer and para-carcinomatous tissue, and further to evaluate the correlation between ITLN-1 mRNA expression and surgical prognosis after liver resection. The ITLN-1 mRNA and protein levels were significantly higher in adjacent normal liver tissues than HCC tissues. Real-time fluorescence quantitative polymerase chain reaction showed that the ITLN-1 expression was decreased in 78.5% (117/149) of HCC tissues compared with their corresponding adjacent liver tissues. Moreover, its low expression was significantly correlated with increased tumor size, tumor differentiation degree, degree of liver cirrhosis, capsule integrity, vascular invasion and tumor recurrence. Patients with high ITLN-1 expression had significantly better overall and recurrence-free survival after curative liver resection. Multivariate cox regression analysis showed that ITLN-1 was an independent predictor of surgical outcomes in HCC patients. The present study suggested that low ITLN-1 expression was associated with poor clinical outcome for HCC patients, indicating a novel biomarker for prognosis evaluation and a potential therapeutic target for HCC patients.
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Affiliation(s)
- Jiang Li
- Hepatic Surgery Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Department of Hepatobiliary Surgery, The First Affiliated Hospital, Shihezi University, Shihezi, Xinjiang, China
| | - Hai-Su Tao
- Hepatic Surgery Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Tong Yuan
- Hepatic Surgery Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zhi-Yong Huang
- Hepatic Surgery Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Er-Lei Zhang
- Hepatic Surgery Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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2
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Dec P, Poniewierska-Baran A, Modrzejewski A, Pawlik A. The Role of Omentin-1 in Cancers Development and Progression. Cancers (Basel) 2023; 15:3797. [PMID: 37568613 PMCID: PMC10417146 DOI: 10.3390/cancers15153797] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Revised: 07/21/2023] [Accepted: 07/25/2023] [Indexed: 08/13/2023] Open
Abstract
Adipose tissue serves as an energy store and is also an active endocrine organ, exerting activity that influences obesity-related processes through the production of regulatory proteins called adipokines or adipocytokines. Adipokines play important direct and indirect roles in the pathogenesis of insulin resistance, the regulation of local and systemic inflammatory processes, and related metabolic complications. There have been an increasing number of studies showing the relationship between some adipokines and carcinogenesis. This work reviews the current literature concerning the effects of omentin-1 on carcinogenesis.
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Affiliation(s)
- Paweł Dec
- Department of Plastic and Reconstructive Surgery, 109 Military Hospital, 71-422 Szczecin, Poland;
| | - Agata Poniewierska-Baran
- Institute of Biology, University of Szczecin, 71-412 Szczecin, Poland;
- Department of Physiology, Pomeranian Medical University, 70-111 Szczecin, Poland
| | | | - Andrzej Pawlik
- Department of Physiology, Pomeranian Medical University, 70-111 Szczecin, Poland
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3
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TSUJI S, IMAI K. Medical application of the monoclonal antibody SKM9-2 against sialylated HEG1, a new precision marker for malignant mesothelioma. PROCEEDINGS OF THE JAPAN ACADEMY. SERIES B, PHYSICAL AND BIOLOGICAL SCIENCES 2023; 99:39-47. [PMID: 36775341 PMCID: PMC10020423 DOI: 10.2183/pjab.99.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Accepted: 11/28/2022] [Indexed: 06/18/2023]
Abstract
Malignant pleural mesothelioma (MPM) is an aggressive tumor of the pleural cavity. Pathologically distinguishing MPM from other pleural lesions is often difficult. We searched for marker antigens to facilitate the pathological diagnosis of MPM and found useful markers for the pathological detection of malignant mesothelioma. Among them, the anti-mesothelioma monoclonal antibody SKM9-2, which was isolated as a clone binding to specimens of MPM (but not to specimens of lung adenocarcinoma) by immunohistochemical screening, showed higher specificity and sensitivity than traditional mesothelioma markers. SKM9-2 recognizes both sialylated O-glycans and peptide sequences in HEG1, and its glycan modifications are specific to mesothelioma. New effective treatments for MPM are needed because the prognosis of patients with MPM is usually poor. SKM9-2 can be used as a seed for next-generation antibody drugs with strong cytotoxic activities. In this review, we have summarized our research on antibody development for MPM diagnosis and treatment.
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Affiliation(s)
- Shoutaro TSUJI
- Department of Medical Technology & Clinical Engineering, Gunma University of Health and Welfare, Maebashi, Gunma, Japan
| | - Kohzoh IMAI
- Institute for Genetic Medicine, Hokkaido University, Sapporo, Hokkaido, Japan
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Syntheses, crystal structure, thermal behavior, and anti-tumor activity of three ternary metal complexes with 2-chloro-5-nitrobenzoic acid and heterocyclic compounds. HETEROCYCL COMMUN 2022. [DOI: 10.1515/hc-2022-0011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Abstract
Three complexes, namely complex (1), complex (2), and complex (3), were synthesized and characterized by X-ray diffraction, thermogravimetric study, and elemental study. Complex (1) comprises discrete binuclear clusters, where two oxygen atoms of 2-chloro-5-nitrobenzoic acid bridge the two copper atoms. Complex (2) is a six-coordination structure consisting of four nitrogen atoms and two oxygen atoms in 2-chloro-5-nitrobenzoic acid and 1,10-phenanthroline to furnish a twisted octahedron. Complex (3) is a six-coordination structure consisting of four oxygen atoms and two nitrogen atoms from the 2-chloro-5-nitrobenzoic acid, methanol, and 2,2′-dipyridyl to furnish a distorted octahedral geometry. Metal complexes’ anti-tumor activity was also investigated by the MTT assay. Of the complexes tested, complex (1) could induce apoptosis in these A549 lung cancer and Caco-2 colon adenocarcinoma cells and complex (2) could induce apoptosis in Caco-2 colon adenocarcinoma cells. CCDC for complex (1) was 1543354, CCDC for complex (2) was 1546991, and CCDC for complex (3) was 1543417.
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Nonnecke EB, Castillo PA, Johansson MEV, Hollox EJ, Shen B, Lönnerdal B, Bevins CL. Human intelectin-2 (ITLN2) is selectively expressed by secretory Paneth cells. FASEB J 2022; 36:e22200. [PMID: 35182405 PMCID: PMC9262044 DOI: 10.1096/fj.202101870r] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Revised: 01/20/2022] [Accepted: 01/26/2022] [Indexed: 01/04/2023]
Abstract
Intelectins (intestinal lectins) are highly conserved across chordate evolution and have been implicated in various human diseases, including Crohn's disease (CD). The human genome encodes two intelectin genes, intelectin-1 (ITLN1) and intelectin-2 (ITLN2). Other than its high sequence similarity with ITLN1, little is known about ITLN2. To address this void in knowledge, we report that ITLN2 exhibits discrete, yet notable differences from ITLN1 in primary structure, including a unique amino terminus, as well as changes in amino acid residues associated with the glycan-binding activity of ITLN1. We identified that ITLN2 is a highly abundant Paneth cell-specific product, which localizes to secretory granules, and is expressed as a multimeric protein in the small intestine. In surgical specimens of ileal CD, ITLN2 mRNA levels were reduced approximately five-fold compared to control specimens. The ileal expression of ITLN2 was unaffected by previously reported disease-associated variants in ITLN2 and CD-associated variants in neighboring ITLN1 as well as NOD2 and ATG16L1. ITLN2 mRNA expression was undetectable in control colon tissue; however, in both ulcerative colitis (UC) and colonic CD, metaplastic Paneth cells were found to express ITLN2. Together, the data reported establish the groundwork for understanding ITLN2 function(s) in the intestine, including its possible role in CD.
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Affiliation(s)
- Eric B Nonnecke
- Department of Microbiology and Immunology, School of Medicine, University of California, Davis, Davis, California, USA
| | - Patricia A Castillo
- Department of Microbiology and Immunology, School of Medicine, University of California, Davis, Davis, California, USA
| | - Malin E V Johansson
- Department of Medical Biochemistry and Cell Biology, Institute of Biomedicine, University of Gothenburg, Gothenburg, Sweden
| | - Edward J Hollox
- Department of Genetics and Genome Biology, University of Leicester, Leicester, UK
| | - Bo Shen
- Department of Gastroenterology, Hepatology and Nutrition, Digestive Diseases and Surgery Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Bo Lönnerdal
- Department of Nutrition, University of California, Davis, Davis, California, USA
| | - Charles L Bevins
- Department of Microbiology and Immunology, School of Medicine, University of California, Davis, Davis, California, USA
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Sommerfeld L, Finkernagel F, Jansen JM, Wagner U, Nist A, Stiewe T, Müller‐Brüsselbach S, Sokol AM, Graumann J, Reinartz S, Müller R. The multicellular signalling network of ovarian cancer metastases. Clin Transl Med 2021; 11:e633. [PMID: 34841720 PMCID: PMC8574964 DOI: 10.1002/ctm2.633] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 10/08/2021] [Accepted: 10/15/2021] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Transcoelomic spread is the major route of metastasis of ovarian high-grade serous carcinoma (HGSC) with the omentum as the major metastatic site. Its unique tumour microenvironment with its large populations of adipocytes, mesothelial cells and immune cells establishes an intercellular signaling network that is instrumental for metastatic growth yet poorly understood. METHODS Based on transcriptomic analysis of tumour cells, tumour-associated immune and stroma cells we defined intercellular signaling pathways for 284 cytokines and growth factors and their cognate receptors after bioinformatic adjustment for contaminating cell types. The significance of individual components of this network was validated by analysing clinical correlations and potentially pro-metastatic functions, including tumour cell migration, pro-inflammatory signal transduction and TAM expansion. RESULTS The data show an unexpected prominent role of host cells, and in particular of omental adipocytes, mesothelial cells and fibroblasts (CAF), in sustaining this signaling network. These cells, rather than tumour cells, are the major source of most cytokines and growth factors in the omental microenvironment (n = 176 vs. n = 13). Many of these factors target tumour cells, are linked to metastasis and are associated with a short survival. Likewise, tumour stroma cells play a major role in extracellular-matrix-triggered signaling. We have verified the functional significance of our observations for three exemplary instances. We show that the omental microenvironment (i) stimulates tumour cell migration and adhesion via WNT4 which is highly expressed by CAF; (ii) induces pro-tumourigenic TAM proliferation in conjunction with high CSF1 expression by omental stroma cells and (iii) triggers pro-inflammatory signaling, at least in part via a HSP70-NF-κB pathway. CONCLUSIONS The intercellular signaling network of omental metastases is majorly dependent on factors secreted by immune and stroma cells to provide an environment that supports ovarian HGSC progression. Clinically relevant pathways within this network represent novel options for therapeutic intervention.
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Affiliation(s)
- Leah Sommerfeld
- Department of Translational Oncology, Center for Tumor Biology and Immunology (ZTI)Philipps UniversityMarburgGermany
| | - Florian Finkernagel
- Department of Translational Oncology, Center for Tumor Biology and Immunology (ZTI)Philipps UniversityMarburgGermany
| | - Julia M. Jansen
- Clinic for Gynecology, Gynecological Oncology and Gynecological EndocrinologyUniversity Hospital (UKGM)MarburgGermany
| | - Uwe Wagner
- Clinic for Gynecology, Gynecological Oncology and Gynecological EndocrinologyUniversity Hospital (UKGM)MarburgGermany
| | - Andrea Nist
- Genomics Core Facility, Center for Tumor Biology and Immunology (ZTI)Philipps UniversityMarburgGermany
| | - Thorsten Stiewe
- Genomics Core Facility, Center for Tumor Biology and Immunology (ZTI)Philipps UniversityMarburgGermany
- Institute of Molecular OncologyPhilipps UniversityMarburgGermany
| | - Sabine Müller‐Brüsselbach
- Department of Translational Oncology, Center for Tumor Biology and Immunology (ZTI)Philipps UniversityMarburgGermany
| | - Anna M. Sokol
- The German Centre for Cardiovascular Research (DZHK), Partner Site Rhine‐MainMax Planck Institute for Heart and Lung ResearchBad NauheimGermany
| | - Johannes Graumann
- The German Centre for Cardiovascular Research (DZHK), Partner Site Rhine‐MainMax Planck Institute for Heart and Lung ResearchBad NauheimGermany
- Institute for Translational Proteomics, Philipps UniversityMarburgGermany
| | - Silke Reinartz
- Department of Translational Oncology, Center for Tumor Biology and Immunology (ZTI)Philipps UniversityMarburgGermany
| | - Rolf Müller
- Department of Translational Oncology, Center for Tumor Biology and Immunology (ZTI)Philipps UniversityMarburgGermany
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Xu H, Xu Q, Yin L. Prognostic value of tumor immune cell infiltration patterns in colon adenocarcinoma based on systematic bioinformatics analysis. Cancer Cell Int 2021; 21:344. [PMID: 34217290 PMCID: PMC8254898 DOI: 10.1186/s12935-021-02048-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Accepted: 06/24/2021] [Indexed: 12/11/2022] Open
Abstract
Background Although immunotherapy for colon cancer has made promising progress, only a few patients currently benefit from it. A recent study revealed that infiltrating immune cells are highly relevant to tumor prognosis and influence the expression of immune-related genes. However, the characterization of immune cell infiltration (ICI) has not yet been comprehensively analyzed and quantified in colon adenocarcinoma (COAD). Methods The multiomic data of COAD samples were downloaded from TCGA. ESTIMATE algorithm, ssGSEA method and CIBERSORT analysis were conducted to estimate the subpopulations of infiltrating immune cells. COAD subtypes based on ICI pattern were identified by consensus clustering then principal-component analysis was performed to obtain ICI scores to quantify the ICI patterns in individual tumors. Kaplan–Meier analysis was employed to validate prognostic value. Gene set enrichment analysis (GSEA) was applied for functional annotation. Finally, the mutation data was analyzed by employing “maftools” package. Results Three bioinformatics algorithms were used to evaluate the ICI patterns from 538 patients with COAD. Two ICI subtypes were determined using consensus clustering, and the ICI score was constructed by performing principal component analysis. Our findings showed that a higher ICI score often indicated a more advanced tumor and worse prognosis. The high-ICI score subgroup had a higher stromal score and more M0 macrophages but fewer plasma cells and decreased CD8 T cell infiltration. In addition, patients with high ICI scores had significantly higher expression levels of HAVCR2 and PCDC1LG2. Real-time polymerase chain reaction (PCR) was conducted to determine the prognostic significances of ICI-related genes. Conclusions In conclusion, ICI score may be considered as an original and useful indicator for independent prognostic prediction and individual immune-related therapy. Supplementary Information The online version contains supplementary material available at 10.1186/s12935-021-02048-x.
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Affiliation(s)
- Hao Xu
- Department of Hepatobiliary and Pancreatic Surgery, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Qianhui Xu
- Department of Hepatobiliary and Pancreatic Surgery, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Lu Yin
- Department of Pathology, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China.
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Miller J, Dreczkowski G, Ramage MI, Wigmore SJ, Gallagher IJ, Skipworth RJE. Adipose depot gene expression and intelectin-1 in the metabolic response to cancer and cachexia. J Cachexia Sarcopenia Muscle 2020; 11:1141-1153. [PMID: 32232960 PMCID: PMC7432578 DOI: 10.1002/jcsm.12568] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Revised: 01/21/2020] [Accepted: 02/25/2020] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Cancer cachexia is a poorly understood metabolic consequence of cancer. During cachexia, different adipose depots demonstrate differential wasting rates. Animal models suggest adipose tissue may be a key driver of muscle wasting through fat-muscle crosstalk, but human studies in this area are lacking. We performed global gene expression profiling of visceral (VAT) and subcutaneous (SAT) adipose from weight stable and cachectic cancer patients and healthy controls. METHODS Cachexia was defined as >2% weight loss plus low computed tomography-muscularity. Biopsies of SAT and VAT were taken from patients undergoing resection for oesophago-gastric cancer, and healthy controls (n = 16 and 8 respectively). RNA was isolated and reverse transcribed. cDNA was hybridised to the Affymetrix Clariom S microarray and data analysed using R/Bioconductor. Differential expression of genes was assessed using empirical Bayes and moderated-t-statistic approaches. Category enrichment analysis was used with a tissue-specific background to examine the biological context of differentially expressed genes. Selected differentially regulated genes were validated by qPCR. Enzyme-linked immunosorbent assay (ELISA) for intelectin-1 was performed on all VAT samples. The previously-described cohort plus 12 additional patients from each group also had plasma I = intelectin-1 ELISA carried out. RESULTS In VAT vs. SAT comparisons, there were 2101, 1722, and 1659 significantly regulated genes in the cachectic, weight stable, and control groups, respectively. There were 2200 significantly regulated genes from VAT in cachectic patients compared with controls. Genes involving inflammation were enriched in cancer and control VAT vs. SAT, although different genes contributed to enrichment in each group. Energy metabolism, fat browning (e.g. uncoupling protein 1), and adipogenesis genes were down-regulated in cancer VAT (P = 0.043, P = 5.4 × 10-6 and P = 1 × 10-6 respectively). The gene showing the largest difference in expression was ITLN1, the gene that encodes for intelectin-1 (false discovery rate-corrected P = 0.0001), a novel adipocytokine associated with weight loss in other contexts. CONCLUSIONS SAT and VAT have unique gene expression signatures in cancer and cachexia. VAT is metabolically active in cancer, and intelectin-1 may be a target for therapeutic manipulation. VAT may play a fundamental role in cachexia, but the down-regulation of energy metabolism genes implies a limited role for fat browning in cachectic patients, in contrast to pre-clinical models.
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Affiliation(s)
- Janice Miller
- Clinical Surgery, Royal Infirmary of Edinburgh, University of Edinburgh, Edinburgh, UK
| | | | - Michael I Ramage
- Clinical Surgery, Royal Infirmary of Edinburgh, University of Edinburgh, Edinburgh, UK
| | - Stephen J Wigmore
- Clinical Surgery, Royal Infirmary of Edinburgh, University of Edinburgh, Edinburgh, UK
| | - Iain J Gallagher
- Faculty of Health Science and Sport, University of Stirling, Stirling, UK
| | - Richard J E Skipworth
- Clinical Surgery, Royal Infirmary of Edinburgh, University of Edinburgh, Edinburgh, UK
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Chen L, Li J, Yang G. A comparative review of intelectins. Scand J Immunol 2020; 92:e12882. [PMID: 32243627 DOI: 10.1111/sji.12882] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Revised: 03/23/2020] [Accepted: 03/24/2020] [Indexed: 12/20/2022]
Abstract
Intelectin (ITLN) is a new type of glycan-binding lectin. It has been demonstrated to agglutinate bacteria probably due to its carbohydrate-binding capacity, suggesting its role in an innate immune response. It is involved not only in many physiological processes but also in some human diseases such as asthma, heart disease, inflammatory bowel disease, chronic obstructive pulmonary disease and cancer. Up to now, intelectin orthologs have been identified in placozoans, urochordatas, cephalochordates and several vertebrates, such as cyclostomata, fish, amphibians and mammals. Although the sequences of intelectins in different species are conserved, their expression patterns, quaternary structures and functions differ considerably among and within species. We summarize the evolution of the intelectin gene family, the tissue distribution, structure and functions of intelectins. We conclude that intelectin plays a role in innate immune response and there are still potential functions of intelectin awaiting discovery.
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Affiliation(s)
- Lei Chen
- Shandong Provincial Key Laboratory of Animal Resistance Biology, College of Life Sciences, Shandong Normal University, Jinan, China
| | - Jinyi Li
- Shandong Provincial Key Laboratory of Animal Resistance Biology, College of Life Sciences, Shandong Normal University, Jinan, China
| | - Guiwen Yang
- Shandong Provincial Key Laboratory of Animal Resistance Biology, College of Life Sciences, Shandong Normal University, Jinan, China
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Shinohara T, Tsuji S, Okano Y, Machida H, Hatakeyama N, Ogushi F. Elevated Levels of Intelectin-1, a Pathogen-binding Lectin, in the BAL Fluid of Patients with Chronic Eosinophilic Pneumonia and Hypersensitivity Pneumonitis. Intern Med 2018; 57:3507-3514. [PMID: 30101907 PMCID: PMC6355400 DOI: 10.2169/internalmedicine.0841-18] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Objective Human intelectin-1 (hITLN-1) binds to galactofuranosyl residues, which are present in the microbial cell wall, but which are absent in mammalian tissues, and has been suggested to play an immunological role against microorganisms. However, the involvement of hITLN-1 in the pathogenesis of diffuse pulmonary diseases remains unknown. The aim of this study was to compare the hITLN-1 concentrations in the bronchoalveolar lavage (BAL) fluid of patients with diffuse pulmonary diseases. Methods The cell components and concentrations of hITLN-1 were analyzed in the BAL fluid of 8 patients with idiopathic chronic eosinophilic pneumonia (ICEP), 3 patients with drug-induced eosinophilic pneumonia, 4 patients with hypersensitivity pneumonitis (HP), 11 patients with sarcoidosis, 9 patients with cryptogenic organizing pneumonia, and 5 patients with idiopathic fibrosing interstitial pneumonia (fibrosing nonspecific interstitial pneumonia or usual interstitial pneumonia). Results The hITLN-1 concentrations in the BAL fluid of patients with ICEP and HP were higher than in those with other diseases. In the ICEP group, no significant difference was observed in the hITLN-1 concentrations of patients with or without a history of bronchial asthma. Conclusion The results of the present study suggest that hITLN-1 may be involved in the pathogenesis of ICEP and HP, and that an increase in the hITLN-1 concentration in the BAL fluid may represent a new biomarker for these diseases.
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Affiliation(s)
- Tsutomu Shinohara
- Department of Clinical Investigation, National Hospital Organization Kochi Hospital, Japan
| | - Shoutaro Tsuji
- Molecular Diagnostic Project, Kanagawa Cancer Center Research Institute, Japan
| | - Yoshio Okano
- Division of Pulmonary Medicine, National Hospital Organization Kochi Hospital, Japan
| | - Hisanori Machida
- Division of Pulmonary Medicine, National Hospital Organization Kochi Hospital, Japan
| | - Nobuo Hatakeyama
- Division of Pulmonary Medicine, National Hospital Organization Kochi Hospital, Japan
| | - Fumitaka Ogushi
- Division of Pulmonary Medicine, National Hospital Organization Kochi Hospital, Japan
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Duffy DJ, Konietzny A, Krstic A, Mehta JP, Halasz M, Kolch W. Identification of a MYCN and Wnt-related VANGL2-ITLN1 fusion gene in neuroblastoma. GENE REPORTS 2018. [DOI: 10.1016/j.genrep.2018.06.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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Extrathymically Generated Regulatory T Cells Establish a Niche for Intestinal Border-Dwelling Bacteria and Affect Physiologic Metabolite Balance. Immunity 2018; 48:1245-1257.e9. [PMID: 29858010 DOI: 10.1016/j.immuni.2018.04.013] [Citation(s) in RCA: 87] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2017] [Revised: 03/12/2018] [Accepted: 04/12/2018] [Indexed: 02/07/2023]
Abstract
The mammalian gut microbiota provides essential metabolites to the host and promotes the differentiation and accumulation of extrathymically generated regulatory T (pTreg) cells. To explore the impact of these cells on intestinal microbial communities, we assessed the composition of the microbiota in pTreg cell-deficient and -sufficient mice. pTreg cell deficiency led to heightened type 2 immune responses triggered by microbial exposure, which disrupted the niche of border-dwelling bacteria early during colonization. Moreover, impaired pTreg cell generation led to pervasive changes in metabolite profiles, altered features of the intestinal epithelium, and reduced body weight in the presence of commensal microbes. Absence of a single species of bacteria depleted in pTreg cell-deficient animals, Mucispirillum schaedleri, partially accounted for the sequelae of pTreg cell deficiency. These observations suggest that pTreg cells modulate the metabolic function of the intestinal microbiota by restraining immune defense mechanisms that may disrupt a particular bacterial niche.
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Omentin-A Novel Adipokine in Respiratory Diseases. Int J Mol Sci 2017; 19:ijms19010073. [PMID: 29283409 PMCID: PMC5796023 DOI: 10.3390/ijms19010073] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2017] [Revised: 12/23/2017] [Accepted: 12/26/2017] [Indexed: 02/07/2023] Open
Abstract
Adipokines, secreted by the adipose tissue, are extensively involved in the regulation and maintenance of various physiological and pathological processes, including insulin sensitivity, energy expenditure, glucose and lipid metabolism, inflammatory activity, neuroendocrine activity, immunity, cancer, homeostasis, angiogenesis, cardiovascular function, breeding and bone metabolism, and all functions of the endocrine-reproductive system axis. Omentin is a recently identified adipokine, which has become a research hotspot due to its pleiotropic effects on various diseases. However, the specific receptor for omentin has not been identified so far. In this study, we report that omentin levels fluctuate in various diseases. In addition, we have focused on the pleiotropic roles of omentin in pulmonary diseases, as it may act as a biomarker for malignant pleural mesothelioma (MPM) and is related to disease severity. Omentin may play significant roles in other pulmonary diseases, such as asthma, obstructive sleep apnea syndrome (OSAS), pulmonary arterial hypertension (PAH), acute respiratory distress syndrome (ARDS), and chronic obstructive pulmonary disease (COPD). This review summarizes the advances in current knowledge and future trends, which may provide a concise and general view on omentin and its effects on pulmonary biology.
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Identification of DAB2 and Intelectin-1 as Novel Positive Immunohistochemical Markers of Epithelioid Mesothelioma by Transcriptome Microarray Analysis for Its Differentiation From Pulmonary Adenocarcinoma. Am J Surg Pathol 2017; 41:1045-1052. [PMID: 28394802 DOI: 10.1097/pas.0000000000000852] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
As there are currently no absolute immunohistochemical positive markers for the definite diagnosis of malignant epithelioid mesothelioma, the identification of additional "positive" markers that may facilitate this diagnosis becomes of clinical importance. Therefore, the aim of this study was to identify novel positive markers of malignant mesothelioma. Whole genome gene expression analysis was performed using RNA extracted from formalin-fixed paraffin-embedded tissue sections of epithelioid mesothelioma and pulmonary adenocarcinoma. Gene expression analysis revealed that disabled homolog 2 (DAB2) and Intelectin-1 had significantly higher expression in epithelioid mesothelioma compared with that in pulmonary adenocarcinoma. The increased mRNA expression of DAB2 and Intelectin-1 was validated by reverse transcriptase polymerase chain reaction of RNA from tumor tissue and protein expression was validated by Western blotting of 5 mesothelioma cell lines. The utility of DAB2 and Intelectin-1 in the differential diagnosis of epithelioid mesothelioma and pulmonary adenocarcinoma was examined by an immunohistochemical study of 75 cases of epithelioid mesothelioma and 67 cases of pulmonary adenocarcinoma. The positive rates of DAB2 and Intelectin-1 expression in epithelioid mesothelioma were 80.0% and 76.0%, respectively, and 3.0% and 0%, respectively, in pulmonary adenocarcinoma. Immunohistochemically, the sensitivity and specificity of DAB2 was 80% and 97% and those of Intelectin-1 were 76% and 100% for differentiation of epithelioid mesothelioma from pulmonary adenocarcinoma. In conclusion, DAB2 and Intelectin-1 are newly identified positive markers of mesothelioma and have potential to be included in future immunohistochemical marker panels for differentiation of epithelioid mesothelioma from pulmonary adenocarcinoma.
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15
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Watanabe T, Chibana K, Shiobara T, Tei R, Koike R, Nakamura Y, Arai R, Horigane Y, Shimizu Y, Takemasa A, Fukuda T, Wenzel SE, Ishii Y. Expression of intelectin-1 in bronchial epithelial cells of asthma is correlated with T-helper 2 (Type-2) related parameters and its function. Allergy Asthma Clin Immunol 2017; 13:35. [PMID: 28775743 PMCID: PMC5540302 DOI: 10.1186/s13223-017-0207-8] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2017] [Accepted: 07/19/2017] [Indexed: 05/22/2024] Open
Abstract
Background Intelectin-1 (ITLN-1) is secreted by intestinal goblet cells and detectable in blood. Its expression is increased in IL-13-overexpressing mouse airways. However, its expression and function in human airways is poorly understood. Methods Distal and proximal bronchial epithelial cells (BECs) were isolated from bronchoscopic brushings of disease control (D-CON), COPD, inhaled corticosteroid-treated asthma (ST-Asthma) and inhaled corticosteroid-naïve asthma (SN-Asthma) patients. ITLN-1 mRNA expression in freshly isolated BECs, primary cultured BECs with or without IL-13 and inhibition effects of mometasone furoate (MF) were investigated by quantitative real-time PCR (qPCR). Correlations between ITLN-1 mRNA and Type-2 related parameters (e.g. FeNO, IgE, iNOS, CCL26, periostin and DPP4 mRNA) were analyzed. ITLN-1 protein distribution in asthmatic airway tissue was assessed by immunohistochemistry. Bronchial alveolar lavage (BAL) and serum ITLN-1 protein were measured by ELISA. The effect of recombinant human (rh) ITLN-1 on stimulated production of CXCL10 and phospho(p)-STAT1 expression examined in lung fibroblasts. Results ITLN-1 mRNA was expressed in freshly isolated BECs and was correlated with Type-2 related parameters. ITLN-1 protein was increased in goblet cells in SN-Asthmatics and increased in SN-Asthmatic BAL fluid. There were no any differences in serum ITLN-1 concentration between ST and SN-Asthma. IL-13 enhanced ITLN-1 expression and inhibited by MF from BECs in vitro, while rhITLN-1 inhibited CXCL10 production and p-STAT1 expression in HFL-1 cells. Conclusion ITLN-1 is induced by IL-13 and expressed mainly in goblet cells in untreated asthma where its levels correlate with known Type-2 related parameters. Further, ITLN-1 inhibits Type-1 chemokine expression. Electronic supplementary material The online version of this article (doi:10.1186/s13223-017-0207-8) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Taiji Watanabe
- Department of Pulmonary Medicine and Clinical Immunology, Dokkyo Medical University School of Medicine, Tochigi, Japan
| | - Kazuyuki Chibana
- Department of Pulmonary Medicine and Clinical Immunology, Dokkyo Medical University School of Medicine, Tochigi, Japan
| | - Taichi Shiobara
- Department of Pulmonary Medicine and Clinical Immunology, Dokkyo Medical University School of Medicine, Tochigi, Japan
| | - Rinna Tei
- Department of Pulmonary Medicine and Clinical Immunology, Dokkyo Medical University School of Medicine, Tochigi, Japan
| | - Ryosuke Koike
- Department of Pulmonary Medicine and Clinical Immunology, Dokkyo Medical University School of Medicine, Tochigi, Japan
| | - Yusuke Nakamura
- Department of Pulmonary Medicine and Clinical Immunology, Dokkyo Medical University School of Medicine, Tochigi, Japan
| | - Ryo Arai
- Department of Pulmonary Medicine and Clinical Immunology, Dokkyo Medical University School of Medicine, Tochigi, Japan
| | - Yukiko Horigane
- Department of Pulmonary Medicine and Clinical Immunology, Dokkyo Medical University School of Medicine, Tochigi, Japan
| | - Yasuo Shimizu
- Department of Pulmonary Medicine and Clinical Immunology, Dokkyo Medical University School of Medicine, Tochigi, Japan
| | - Akihiro Takemasa
- Department of Pulmonary Medicine and Clinical Immunology, Dokkyo Medical University School of Medicine, Tochigi, Japan
| | - Takeshi Fukuda
- Dokkyo Medical University School of Medicine, 880 Kitakobayashi Mibumachi, Shimotsugagun, Tochigi, 321-0293 Japan
| | - Sally E Wenzel
- Pulmonary Allergy and Critical Care Medicine, Department of Medicine, University of Pittsburgh, 3459 Fifth Ave., Pittsburgh, PA 15213 USA
| | - Yoshiki Ishii
- Department of Pulmonary Medicine and Clinical Immunology, Dokkyo Medical University School of Medicine, Tochigi, Japan
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16
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Watanabe T, Watanabe-Kominato K, Takahashi Y, Kojima M, Watanabe R. Adipose Tissue-Derived Omentin-1 Function and Regulation. Compr Physiol 2017. [PMID: 28640441 DOI: 10.1002/cphy.c160043] [Citation(s) in RCA: 123] [Impact Index Per Article: 17.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Omentin-1, also known as intelectin-1, is a recently identified novel adipocytokine of 313 amino acids, which is expressed in visceral (omental and epicardial) fat as well as mesothelial cells, vascular cells, airway goblet cells, small intestine, colon, ovary, and plasma. The level of omentin-1 expression in (pre)adipocytes is decreased by glucose/insulin and stimulated by fibroblast growth factor-21 and dexamethasone. Several lines of experimental evidence have shown that omentin-1 plays crucial roles in the maintenance of body metabolism and insulin sensitivity, and has anti-inflammatory, anti-atherosclerotic, and cardiovascular protective effects via AMP-activated protein kinase/Akt/nuclear factor-κB/mitogen-activated protein kinase (ERK, JNK, and p38) signaling. Clinical studies have indicated the usage of circulating omentin-1 as a biomarker of obesity, metabolic disorders including insulin resistance, diabetes, and metabolic syndrome, and atherosclerotic cardiovascular diseases. It is also possible to use circulating omentin-1 as a biomarker of bone metabolism, inflammatory diseases, cancers, sleep apnea syndrome, preeclampsia, and polycystic ovary syndrome. Decreased omentin-1 levels are generally associated with these diseases. However, omentin-1 increases to counteract the acute phase after onset of these diseases. These findings indicate that omentin-1 may be a negative risk factor for these diseases, and also act as an acute-phase reactant by its anti-inflammatory and atheroprotective effects. Therapeutic strategies to restore omentin-1 levels may be valuable for the prevention or treatment of these diseases. Weight loss, olive oil-rich diet, aerobic training, and treatment with atorvastatin and antidiabetic drugs (metformin, pioglitazone, and exenatide) are effective means of increasing circulating omentin-1 levels. This review provides insights into the potential use of omentin-1 as a biomarker and therapeutic target for these diseases. © 2017 American Physiological Society. Compr Physiol 7:765-781, 2017.
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Affiliation(s)
- Takuya Watanabe
- Laboratory of Cardiovascular Medicine, Tokyo University of Pharmacy and Life Sciences, Hachioji-City, Tokyo, Japan
| | - Kaho Watanabe-Kominato
- Laboratory of Cardiovascular Medicine, Tokyo University of Pharmacy and Life Sciences, Hachioji-City, Tokyo, Japan
| | - Yui Takahashi
- Laboratory of Cardiovascular Medicine, Tokyo University of Pharmacy and Life Sciences, Hachioji-City, Tokyo, Japan
| | - Miho Kojima
- Laboratory of Cardiovascular Medicine, Tokyo University of Pharmacy and Life Sciences, Hachioji-City, Tokyo, Japan
| | - Rena Watanabe
- Laboratory of Cardiovascular Medicine, Tokyo University of Pharmacy and Life Sciences, Hachioji-City, Tokyo, Japan
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17
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Adiponectin and Intelectin-1: Important Adipokine Players in Obesity-Related Colorectal Carcinogenesis. Int J Mol Sci 2017. [PMID: 28422056 DOI: 10.3390/ijms18040866.] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Overweight is believed to be associated with colorectal cancer risk. Adipose tissue is loose connective tissue composed of adipocytes. It is now recognized as a major endocrine organ, secreting humoral factors collectively called adipokines. Aberrant hormonal systems consisting of modulated adipokines and their receptors are thought to play a role in colorectal carcinogenesis and cancer progression in obese conditions. However, it is still unclear whether and how each adipokine relates to colorectal carcinogenesis. Notably, a couple of molecules that were initially proposed to be obesity-related adipokines were disqualified by subsequent studies. The adipokines, adiponectin, and intelectin-1 (also known as omentin-1), whose levels are decreased in obesity, act as tumor suppressor factors in various cancers. Numerous studies have demonstrated a link between the insufficient expression and function of adiponectin and its receptor, T-cadherin, in colorectal carcinogenesis. Moreover, our recent study indicated that loss of TMEM207, which is critical for the proper processing of intelectin-1 in the colon mucosa, leads to insufficient intelectin-1 production, thus participating in colorectal carcinogenesis. Here, we discuss the recent understanding of the role of adipokines in colorectal carcinogenesis and subsequently describe the potent tumor suppressor roles of intelectin-1 and TMEM207 in colorectal cancer.
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18
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Kawashima K, Maeda K, Saigo C, Kito Y, Yoshida K, Takeuchi T. Adiponectin and Intelectin-1: Important Adipokine Players in Obesity-Related Colorectal Carcinogenesis. Int J Mol Sci 2017; 18:ijms18040866. [PMID: 28422056 PMCID: PMC5412447 DOI: 10.3390/ijms18040866] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2017] [Revised: 04/12/2017] [Accepted: 04/17/2017] [Indexed: 01/10/2023] Open
Abstract
Overweight is believed to be associated with colorectal cancer risk. Adipose tissue is loose connective tissue composed of adipocytes. It is now recognized as a major endocrine organ, secreting humoral factors collectively called adipokines. Aberrant hormonal systems consisting of modulated adipokines and their receptors are thought to play a role in colorectal carcinogenesis and cancer progression in obese conditions. However, it is still unclear whether and how each adipokine relates to colorectal carcinogenesis. Notably, a couple of molecules that were initially proposed to be obesity-related adipokines were disqualified by subsequent studies. The adipokines, adiponectin, and intelectin-1 (also known as omentin-1), whose levels are decreased in obesity, act as tumor suppressor factors in various cancers. Numerous studies have demonstrated a link between the insufficient expression and function of adiponectin and its receptor, T-cadherin, in colorectal carcinogenesis. Moreover, our recent study indicated that loss of TMEM207, which is critical for the proper processing of intelectin-1 in the colon mucosa, leads to insufficient intelectin-1 production, thus participating in colorectal carcinogenesis. Here, we discuss the recent understanding of the role of adipokines in colorectal carcinogenesis and subsequently describe the potent tumor suppressor roles of intelectin-1 and TMEM207 in colorectal cancer.
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Affiliation(s)
- Keisuke Kawashima
- Department of Pathology and Translational Research, Gifu University Graduate School of Medicine, Yanagido, Gifu 501-1193, Japan.
| | - Kenichi Maeda
- Department of Surgical Oncology, Gifu University Graduate School of Medicine, Yanagido, Gifu 501-1193, Japan.
| | - Chiemi Saigo
- Department of Pathology and Translational Research, Gifu University Graduate School of Medicine, Yanagido, Gifu 501-1193, Japan.
| | - Yusuke Kito
- Department of Pathology and Translational Research, Gifu University Graduate School of Medicine, Yanagido, Gifu 501-1193, Japan.
| | - Kazuhiro Yoshida
- Department of Surgical Oncology, Gifu University Graduate School of Medicine, Yanagido, Gifu 501-1193, Japan.
| | - Tamotsu Takeuchi
- Department of Pathology and Translational Research, Gifu University Graduate School of Medicine, Yanagido, Gifu 501-1193, Japan.
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19
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Tsuji S, Washimi K, Kageyama T, Yamashita M, Yoshihara M, Matsuura R, Yokose T, Kameda Y, Hayashi H, Morohoshi T, Tsuura Y, Yusa T, Sato T, Togayachi A, Narimatsu H, Nagasaki T, Nakamoto K, Moriwaki Y, Misawa H, Hiroshima K, Miyagi Y, Imai K. HEG1 is a novel mucin-like membrane protein that serves as a diagnostic and therapeutic target for malignant mesothelioma. Sci Rep 2017; 7:45768. [PMID: 28361969 PMCID: PMC5374711 DOI: 10.1038/srep45768] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2016] [Accepted: 03/02/2017] [Indexed: 12/24/2022] Open
Abstract
The absence of highly specific markers for malignant mesothelioma (MM) has served an obstacle for its diagnosis and development of molecular-targeting therapy against MM. Here, we show that a novel mucin-like membrane protein, sialylated protein HEG homolog 1 (HEG1), is a highly specific marker for MM. A monoclonal antibody against sialylated HEG1, SKM9-2, can detect even sarcomatoid and desmoplastic MM. The specificity and sensitivity of SKM9-2 to MM reached 99% and 92%, respectively; this antibody did not react with normal tissues. This accurate discrimination by SKM9-2 was due to the recognition of a sialylated O-linked glycan with HEG1 peptide. We also found that gene silencing of HEG1 significantly suppressed the survival and proliferation of mesothelioma cells; this result suggests that HEG1 may be a worthwhile target for function-inhibition drugs. Taken together, our results indicate that sialylated HEG1 may be useful as a diagnostic and therapeutic target for MM.
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Affiliation(s)
- Shoutaro Tsuji
- Kanagawa Cancer Center Research Institute, Yokohama, Japan
| | - Kota Washimi
- Kanagawa Cancer Center Research Institute, Yokohama, Japan.,Department of Pathology, Kanagawa Cancer Center, Yokohama, Japan
| | | | | | | | - Rieko Matsuura
- Kanagawa Cancer Center Research Institute, Yokohama, Japan
| | - Tomoyuki Yokose
- Department of Pathology, Kanagawa Cancer Center, Yokohama, Japan
| | - Yoichi Kameda
- Department of Pathology, Kanagawa Cardiovascular and Respiratory Center, Yokohama, Japan
| | - Hiroyuki Hayashi
- Department of Pathology, Yokohama Municipal Citizen's Hospital, Yokohama, Japan
| | - Takao Morohoshi
- Division of General Thoracic Surgery, Yokosuka-Kyosai Hospital, Yokosuka, Japan
| | - Yukio Tsuura
- Division of Pathology, Yokosuka-Kyosai Hospital, Yokosuka, Japan
| | - Toshikazu Yusa
- Department of General Thoracic Surgery and Asbestos Disease Center, Chiba Rosai Hospital, Ichihara, Japan
| | - Takashi Sato
- Research Center for Medical Glycoscience, National Institute of Advanced Industrial Science and Technology, Tsukuba, Japan
| | - Akira Togayachi
- Research Center for Medical Glycoscience, National Institute of Advanced Industrial Science and Technology, Tsukuba, Japan
| | - Hisashi Narimatsu
- Research Center for Medical Glycoscience, National Institute of Advanced Industrial Science and Technology, Tsukuba, Japan
| | - Toshinori Nagasaki
- Kanagawa Cancer Center Research Institute, Yokohama, Japan.,Division of Pharmacology, Faculty of Pharmacy, Keio University, Tokyo, Japan
| | - Kotaro Nakamoto
- Kanagawa Cancer Center Research Institute, Yokohama, Japan.,Division of Pharmacology, Faculty of Pharmacy, Keio University, Tokyo, Japan
| | - Yasuhiro Moriwaki
- Division of Pharmacology, Faculty of Pharmacy, Keio University, Tokyo, Japan
| | - Hidemi Misawa
- Division of Pharmacology, Faculty of Pharmacy, Keio University, Tokyo, Japan
| | - Kenzo Hiroshima
- Department of Pathology, Tokyo Women's Medical University, Yachiyo Medical Center, Yachiyo, Japan
| | - Yohei Miyagi
- Kanagawa Cancer Center Research Institute, Yokohama, Japan
| | - Kohzoh Imai
- Kanagawa Cancer Center Research Institute, Yokohama, Japan.,Institute of Medical Science, University of Tokyo, Tokyo, Japan
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20
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Abstract
We study the structural stability of helical and nonhelical regions in chain A of human intelectin-1. Using a geometrical model introduced previously, we carried out a computational analysis based on the recently reported crystal structure of this protein by Kiessling et al. to quantify the resiliency of the native state to steric perturbations. Response to these perturbations is characterized by calculating, relative to the native state, the lateral, radial, and angular displacements of n-residue segments of the polypeptide chain centered on each residue. By quantifying the stability of the protein through six stages of unfolding, we are able to identify regions in chain A of intelectin-1 that are markedly affected by structural perturbations versus those that are relatively unaffected, the latter suggesting that the native-state geometry of these regions is essentially conserved. Importantly, residues in the vicinity of calcium ions comprise a conserved region, suggesting that Ca ions play a role not only in the coordination of carbohydrate hydroxyl groups but also in preserving the integrity of the structure.
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Affiliation(s)
- John J Kozak
- DePaul University , 243 South Wabash Avenue, Chicago, Illinois 60604-6116, United States
| | - Harry B Gray
- Beckman Institute, California Institute of Technology , Pasadena, California 91125, United States
| | - Roberto A Garza-López
- Department of Chemistry and Seaver Chemistry Laboratory, Pomona College , Claremont, California 91711, United States
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21
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Li D, Zhao X, Xiao Y, Mei H, Pu J, Xiang X, Jiao W, Song H, Qu H, Huang K, Zheng L, Tong Q. Intelectin 1 suppresses tumor progression and is associated with improved survival in gastric cancer. Oncotarget 2016; 6:16168-82. [PMID: 25965823 PMCID: PMC4599263 DOI: 10.18632/oncotarget.3753] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2014] [Accepted: 04/06/2015] [Indexed: 12/30/2022] Open
Abstract
Recent evidence shows the emerging roles of intelectin 1 (ITLN1), a secretory lectin, in human cancers. Our previous studies have implicated the potential roles of ITLN1 in the aggressiveness of gastric cancer. Herein, we investigated the functions, downstream targets, and clinical significance of ITLN1 in the progression of gastric cancer. We demonstrated that ITLN1 increased the levels of hepatocyte nuclear factor 4 alpha (HNF4α), resulting in suppression of nuclear translocation and transcriptional activity of β-catenin in gastric cancer cells. Mechanistically, ITLN1 attenuated the activity of nuclear factor-kappa B, a transcription factor repressing the HNF4α expression, in gastric cancer cells through inactivating the phosphoinositide 3-kinase/AKT/Ikappa B kinase signaling. Gain- and loss-of-function studies demonstrated that ITLN1 suppressed the growth, invasion, and metastasis of gastric cancer cells in vitro and in vivo. In addition, restoration of HNF4α expression prevented the gastric cancer cells from ITLN1-mediated changes in these biological features. In clinical gastric cancer tissues, HNF4α expression was positively correlated with that of ITLN1. Patients with high ITLN1 or HNF4α expression had greater survival probability. Taken together, these data indicate that ITLN1 suppresses the progression of gastric cancer through up-regulation of HNF4α, and is associated with improved survival in patients with gastric cancer.
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Affiliation(s)
- Dan Li
- Department of Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P. R. China
| | - Xiang Zhao
- Department of Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P. R. China
| | - Yong Xiao
- Department of Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P. R. China
| | - Hong Mei
- Department of Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P. R. China
| | - Jiarui Pu
- Department of Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P. R. China
| | - Xuan Xiang
- Department of Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P. R. China
| | - Wanju Jiao
- Department of Pathology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P. R. China
| | - Huajie Song
- Department of Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P. R. China
| | - Hongxia Qu
- Department of Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P. R. China
| | - Kai Huang
- Clinical Center of Human Genomic Research, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P. R. China.,Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P. R. China
| | - Liduan Zheng
- Department of Pathology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P. R. China.,Clinical Center of Human Genomic Research, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P. R. China
| | - Qiangsong Tong
- Department of Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P. R. China.,Clinical Center of Human Genomic Research, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P. R. China
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22
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Wesener DA, Wangkanont K, McBride R, Song X, Kraft MB, Hodges HL, Zarling LC, Splain RA, Smith DF, Cummings RD, Paulson JC, Forest KT, Kiessling LL. Recognition of microbial glycans by human intelectin-1. Nat Struct Mol Biol 2015; 22:603-10. [PMID: 26148048 PMCID: PMC4526365 DOI: 10.1038/nsmb.3053] [Citation(s) in RCA: 111] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2015] [Accepted: 06/02/2015] [Indexed: 01/07/2023]
Abstract
The glycans displayed on mammalian cells can differ markedly from those on microbes. Such differences could, in principle, be 'read' by carbohydrate-binding proteins, or lectins. We used glycan microarrays to show that human intelectin-1 (hIntL-1) does not bind known human glycan epitopes but does interact with multiple glycan epitopes found exclusively on microbes: β-linked D-galactofuranose (β-Galf), D-phosphoglycerol-modified glycans, heptoses, D-glycero-D-talo-oct-2-ulosonic acid (KO) and 3-deoxy-D-manno-oct-2-ulosonic acid (KDO). The 1.6-Å-resolution crystal structure of hIntL-1 complexed with β-Galf revealed that hIntL-1 uses a bound calcium ion to coordinate terminal exocyclic 1,2-diols. N-acetylneuraminic acid (Neu5Ac), a sialic acid widespread in human glycans, has an exocyclic 1,2-diol but does not bind hIntL-1, probably owing to unfavorable steric and electronic effects. hIntL-1 marks only Streptococcus pneumoniae serotypes that display surface glycans with terminal 1,2-diol groups. This ligand selectivity suggests that hIntL-1 functions in microbial surveillance.
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Affiliation(s)
- Darryl A Wesener
- Department of Biochemistry, University of Wisconsin-Madison, Madison, Wisconsin, USA
| | - Kittikhun Wangkanont
- Department of Chemistry, University of Wisconsin-Madison, Madison, Wisconsin, USA
| | - Ryan McBride
- 1] Department of Cell and Molecular Biology, Scripps Research Institute, La Jolla, California, USA. [2] Department of Chemical Physiology, Scripps Research Institute, La Jolla, California, USA
| | - Xuezheng Song
- 1] Department of Biochemistry, Emory University School of Medicine, Atlanta, Georgia, USA. [2] Glycomics Center, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Matthew B Kraft
- Department of Chemistry, University of Wisconsin-Madison, Madison, Wisconsin, USA
| | - Heather L Hodges
- Department of Chemistry, University of Wisconsin-Madison, Madison, Wisconsin, USA
| | - Lucas C Zarling
- Department of Biochemistry, University of Wisconsin-Madison, Madison, Wisconsin, USA
| | - Rebecca A Splain
- Department of Chemistry, University of Wisconsin-Madison, Madison, Wisconsin, USA
| | - David F Smith
- 1] Department of Biochemistry, Emory University School of Medicine, Atlanta, Georgia, USA. [2] Glycomics Center, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Richard D Cummings
- 1] Department of Biochemistry, Emory University School of Medicine, Atlanta, Georgia, USA. [2] Glycomics Center, Emory University School of Medicine, Atlanta, Georgia, USA
| | - James C Paulson
- 1] Department of Cell and Molecular Biology, Scripps Research Institute, La Jolla, California, USA. [2] Department of Chemical Physiology, Scripps Research Institute, La Jolla, California, USA
| | - Katrina T Forest
- Department of Bacteriology, University of Wisconsin-Madison, Madison, Wisconsin, USA
| | - Laura L Kiessling
- 1] Department of Biochemistry, University of Wisconsin-Madison, Madison, Wisconsin, USA. [2] Department of Chemistry, University of Wisconsin-Madison, Madison, Wisconsin, USA
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23
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Li D, Mei H, Pu J, Xiang X, Zhao X, Qu H, Huang K, Zheng L, Tong Q. Intelectin 1 suppresses the growth, invasion and metastasis of neuroblastoma cells through up-regulation of N-myc downstream regulated gene 2. Mol Cancer 2015; 14:47. [PMID: 25889839 PMCID: PMC4359454 DOI: 10.1186/s12943-015-0320-6] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2014] [Accepted: 02/09/2015] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Recent studies have revealed the potential roles of intelectin 1 (ITLN1) in tumorigenesis. However, its functions and underlying mechanisms in neuroblastoma (NB), the most common extracranial solid tumor in childhood, still remain largely unknown. METHODS Human neuroblastoma cell lines were treated with recombinant ITLN1 protein or stably transfected with ITLN1 expression and short hairpin RNA vectors. Gene expression and signaling pathway were detected by western blot and real-time quantitative RT-PCR. Gene promoter activity and transcription factor binding were detected by luciferase reporter and chromatin immunoprecipitation assays. Growth and aggressiveness of tumor cells were measured by MTT colorimetry, colony formation, scratch assay, matrigel invasion assay, and nude mice model. RESULTS Mining of public microarray databases revealed that N-myc downstream regulated gene 2 (NDRG2) was significantly correlated with ITLN1 in NB. Gain- and loss-of-function studies indicated that secretory ITLN1 facilitated the NDRG2 expression, resulting in down-regulation of vascular endothelial growth factor (VEGF) and matrix metalloproteinase 9 (MMP-9), in NB cell lines SH-SY5Y, SK-N-BE(2), and SK-N-SH. Krüppel-like factor 4 (KLF4), a transcription factor crucial for NDRG2 expression, was up-regulated by ITLN1 in NB cells via inactivation of phosphoinositide 3-kinase (PI3K)/AKT signaling. Ectopic expression of ITLN1 suppressed the growth, invasion and metastasis of NB cells in vitro and in vivo. Conversely, knockdown of ITLN1 promoted the growth, invasion, and metastasis of NB cells. In addition, rescue experiments in ITLN1 over-expressed or silenced NB cells showed that restoration of NDRG2 expression prevented the tumor cells from ITLN1-mediated changes in these biological features. In clinical NB tissues, ITLN1 was down-regulated and positively correlated with NDRG2 expression. Patients with high ITLN1 or NDRG2 expression had greater survival probability. CONCLUSIONS These findings indicate that ITLN1 functions as a tumor suppressor that affects the growth, invasion and metastasis of NB through up-regulation of NDRG2.
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Affiliation(s)
- Dan Li
- Department of Pediatric Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, 430022, P. R. China.
| | - Hong Mei
- Department of Pediatric Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, 430022, P. R. China.
| | - Jiarui Pu
- Department of Pediatric Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, 430022, P. R. China.
| | - Xuan Xiang
- Department of Pediatric Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, 430022, P. R. China.
| | - Xiang Zhao
- Department of Pediatric Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, 430022, P. R. China.
| | - Hongxia Qu
- Department of Pediatric Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, 430022, P. R. China.
| | - Kai Huang
- Clinical Center of Human Genomic Research, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, 430022, P. R. China.
| | - Liduan Zheng
- Clinical Center of Human Genomic Research, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, 430022, P. R. China. .,Department of Pathology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, 430022, P. R. China.
| | - Qiangsong Tong
- Department of Pediatric Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, 430022, P. R. China. .,Clinical Center of Human Genomic Research, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, 430022, P. R. China.
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Hiemstra I, Klaver E, Vrijland K, Kringel H, Andreasen A, Bouma G, Kraal G, van Die I, den Haan J. Excreted/secreted Trichuris suis products reduce barrier function and suppress inflammatory cytokine production of intestinal epithelial cells. Mol Immunol 2014; 60:1-7. [DOI: 10.1016/j.molimm.2014.03.003] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2014] [Accepted: 03/10/2014] [Indexed: 12/26/2022]
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Narumi T, Watanabe T, Kadowaki S, Kinoshita D, Yokoyama M, Honda Y, Otaki Y, Nishiyama S, Takahashi H, Arimoto T, Shishido T, Miyamoto T, Kubota I. Impact of serum omentin-1 levels on cardiac prognosis in patients with heart failure. Cardiovasc Diabetol 2014; 13:84. [PMID: 24755035 PMCID: PMC4006671 DOI: 10.1186/1475-2840-13-84] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/04/2014] [Accepted: 04/15/2014] [Indexed: 12/22/2022] Open
Abstract
Background Various adipokines are reported to be associated with the development of heart failure (HF) through insulin resistance and chronic inflammation. Omentin-1 is a novel adipokine and is associated with incident coronary artery disease. However, it remains unclear whether serum omentin-1 levels are associated with cardiac prognosis in patients with HF. Methods We measured serum omentin-1 levels at admission in 136 consecutive patients with HF, and 20 control subjects without signs of significant heart disease. We prospectively followed patients with HF to endpoints of cardiac death or re-hospitalization for worsening HF. Results Serum omentin-1 levels were markedly lower in HF patients with cardiac events compared with to without. The patients who were in New York Heart Association (NYHA) functional class IV showed significantly lower serum omentin-1 levels compared to those in class II and III, whereas serum omentin-1 levels did not correlate with serum brain natriuretic peptide levels (r = 0.217, P = 0.011). We divided the HF patients into three groups based on the tertiles of serum omentin-1 level (low T1, middle T2, and high T3). Multivariate Cox hazard analysis showed that the lowest serum omentin-1 level (T1) was independently associated with cardiac events after adjustment for confounding factors (hazard ratio 5.78, 95% confidence interval 1.20-12.79). We divided the HF patients into two groups according to the median serum omentin-1 levels. Kaplan-Meier analysis revealed that the patients with low serum omentin-1 levels had a higher risk of cardiac events compared with those with high serum omentin-1 levels (log-rank test p < 0.001). Conclusion Decreased serum omentin-1 levels were associated with a poor cardiac outcome in patients with HF.
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Affiliation(s)
| | - Tetsu Watanabe
- Department of Cardiology, Pulmonology, and Nephrology, Yamagata University School of Medicine, 2-2-2 Iida-nishi, Yamagata 990-9585, Japan.
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Zhou Z, Liu H, Gu G, Wang G, Wu W, Zhang C, Ren J. Immunoproteomic to identify antigens in the intestinal mucosa of Crohn's disease patients. PLoS One 2013; 8:e81662. [PMID: 24358121 PMCID: PMC3864798 DOI: 10.1371/journal.pone.0081662] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2013] [Accepted: 10/15/2013] [Indexed: 12/29/2022] Open
Abstract
Incidences of Crohn disease (CD) have increased significantly in the last decade. Immunoproteomics are a promising method to identify biomarkers of different diseases. In the present study, we used immunoproteomics to study proteins of intestinal mucosal lesions and neighboring normal intestinal mucosa of 8 CD patients. Reactive proteins were validated by Western blotting. Approximately 50 protein spots localized in the 4 to 7 pI range were detected on two-dimensional electrophoresis gels, and 6 differentially expressed protein spots between 10 and 100 kDa were identified. Reactive proteins were identified as prohibitin, calreticulin, apolipoprotein A-I, intelectin-1, protein disulfide isomerase, and glutathione s-transferase Pi. Western blotting was conducted on the intestinal mucosa of another 4 CD patients to validate the reactive proteins. We found that intestinal mucosal lesions had high levels of prohibitin expression. Glutathione s-transferase expression was detected in 100% of the intestinal mucosa examined. Thus, we report 6 autoantigens of CD, including 3 new and 3 previously reported autoantigens. Intelectin-1, protein disulfide isomerase, and glutathione-s-transferases may be used as biomarkers for CD pathogenesis.
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Affiliation(s)
- Zheng Zhou
- Department of General Surgery, First Affiliated Hospital of Anhui Medical University, Anhui, Hefei, P.R. China
| | - Haiyan Liu
- Department of Critical Care, First Affiliated Hospital of Anhui Medical University, Anhui, Hefei, P.R. China
| | - Guosheng Gu
- Research Institute of General Surgery, Jinling Hospital, Medical School of Nanjing University, Nanjing, P.R. China
| | - Gefei Wang
- Research Institute of General Surgery, Jinling Hospital, Medical School of Nanjing University, Nanjing, P.R. China
| | - Wenyong Wu
- Department of General Surgery, First Affiliated Hospital of Anhui Medical University, Anhui, Hefei, P.R. China
| | - Changle Zhang
- Department of General Surgery, First Affiliated Hospital of Anhui Medical University, Anhui, Hefei, P.R. China
| | - Jianan Ren
- Research Institute of General Surgery, Jinling Hospital, Medical School of Nanjing University, Nanjing, P.R. China
- * E-mail:
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Yan J, Xu L, Zhang Y, Zhang C, Zhang C, Zhao F, Feng L. Comparative genomic and phylogenetic analyses of the intelectin gene family: implications for their origin and evolution. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2013; 41:189-199. [PMID: 23643964 DOI: 10.1016/j.dci.2013.04.016] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2013] [Revised: 04/08/2013] [Accepted: 04/23/2013] [Indexed: 06/02/2023]
Abstract
Intelectin is a newly characterized gene family involved in early embryogenesis, host-pathogen interactions and iron metabolism. In this study, we searched the genomes of metazoans by extensive BLAST survey and found no intelectin homologs in invertebrate metazoans but 12 in amphioxus Branchiostoma floridae and 21 in ascidians Ciona intestinalis. Some ascidians oocyte cortical granule lectins (CGLs) have unknown insertion sequences between fibrinogen-related domain (FReD) and Intelectin Domain, the boundaries of which are equivalent to exon structures. In addition to ascidians intelectins/CGLs located in the base, phylogenetic tree comprises four main clades representing mammal, frog, fish, and amphioxus, indicating that intelectin genes undergo extensive lineage-specific duplication or gene conversion. However, genomic neighborhood surrounding analysis shows that clear proto-orthologies are difficult to be established among these counterparts. In addition, sequence comparison and phylogenetic analysis of FReDs from intelectins and other fibrinogen-like proteins from choanoflagellate, anemone, frog and human indicate FReDs of intelectins are unique. Likewise, these choanoflagellate and anemone genes may be close to intelectin gene.
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Affiliation(s)
- Jie Yan
- Marine Biotechnology Research Center, Shandong Provincial Key Laboratory of Animal Cells and Developmental Biology, Institute of Developmental Biology, School of Life Sciences, Shandong University, Jinan, Shandong 250100, PR China.
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Washimi K, Yokose T, Yamashita M, Kageyama T, Suzuki K, Yoshihara M, Miyagi Y, Hayashi H, Tsuji S. Specific expression of human intelectin-1 in malignant pleural mesothelioma and gastrointestinal goblet cells. PLoS One 2012; 7:e39889. [PMID: 22768319 PMCID: PMC3388067 DOI: 10.1371/journal.pone.0039889] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2012] [Accepted: 05/28/2012] [Indexed: 11/18/2022] Open
Abstract
Malignant pleural mesothelioma (MPM) is a fatal tumor. It is often hard to discriminate MPM from metastatic tumors of other types because currently, there are no reliable immunopathological markers for MPM. MPM is differentially diagnosed by some immunohistochemical tests on pathology specimens. In the present study, we investigated the expression of intelectin-1, a new mesothelioma marker, in normal tissues in the whole body and in many cancers, including MPM, by immunohistochemical analysis. We found that in normal tissues, human intelectin-1 was mainly secreted from gastrointestinal goblet cells along with mucus into the intestinal lumen, and it was also expressed, to a lesser extent, in mesothelial cells and urinary epithelial cells. Eighty-eight percent of epithelioid-type MPMs expressed intelectin-1, whereas sarcomatoid-type MPMs, biphasic MPMs, and poorly differentiated MPMs were rarely positive for intelectin-1. Intelectin-1 was not expressed in other cancers, except in mucus-producing adenocarcinoma. These results suggest that intelectin-1 is a better marker for epithelioid-type MPM than other mesothelioma markers because of its specificity and the simplicity of pathological assessment. Pleural intelectin-1 could be a useful diagnostic marker for MPM with applications in histopathological identification of MPM.
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Affiliation(s)
- Kota Washimi
- Department of Pathology, Kanagawa Cancer Center, Yokohama, Japan
| | - Tomoyuki Yokose
- Department of Pathology, Kanagawa Cancer Center, Yokohama, Japan
| | - Makiko Yamashita
- Molecular Diagnostic Project, Kanagawa Cancer Center Research Institute, Yokohama, Japan
| | - Taihei Kageyama
- Molecular Diagnostic Project, Kanagawa Cancer Center Research Institute, Yokohama, Japan
| | - Katsuo Suzuki
- Molecular Diagnostic Project, Kanagawa Cancer Center Research Institute, Yokohama, Japan
| | - Mitsuyo Yoshihara
- Division of Molecular Pathology and Genetics, Kanagawa Cancer Center Research Institute, Yokohama, Japan
| | - Yohei Miyagi
- Division of Molecular Pathology and Genetics, Kanagawa Cancer Center Research Institute, Yokohama, Japan
| | - Hiroyuki Hayashi
- Department of Pathology, Yokohama Municipal Citizen’s Hospital, Yokohama, Japan
| | - Shoutaro Tsuji
- Molecular Diagnostic Project, Kanagawa Cancer Center Research Institute, Yokohama, Japan
- * E-mail:
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Aberrant expression of intelectin-1 in gastric cancer: its relationship with clinicopathological features and prognosis. J Cancer Res Clin Oncol 2011; 138:163-72. [PMID: 22083213 DOI: 10.1007/s00432-011-1088-8] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2011] [Accepted: 11/01/2011] [Indexed: 01/13/2023]
Abstract
PURPOSES Human intelectin-1 (ITLN-1) is a novel identified galactose-binding lectin that is expressed in the colonic goblet cells. Since gastric adenocarcinomas can arise through a process of intestinalization, we speculate that ITLN-1 may be aberrantly expressed in gastric cancer. This study was undertaken to examine the ITLN-1 expression in gastric cancer and correlate it with clinical outcomes. METHODS One hundred and ninety-six gastric cancer patients were evaluated for the ITLN-1 expression by immunohistochemistry. The ITLN-1 transcripts were measured by real-time quantitative PCR. RESULTS ITLN-1 expression was absent in normal gastric mucosa, whereas areas of intestinal metaplasia revealed ITLN-1 immunoreactivity. One hundred and forty-two gastric cancer patients (72.4%) were positive for ITLN-1 expression. In a subtotal of 20 patients, ITLN-1 transcripts were significantly enhanced in gastric cancer tissues than in normal gastric mucosa (P < 0.001). The expression rate of ITLN-1 was higher in intestinal-type carcinomas than in diffuse-type carcinomas (P = 0.003). ITLN-1 positivity in gastric cancer was positively correlated with tumor differentiation (P = 0.001) and CDX2 expression (P < 0.001), and inversely correlated with depth of invasion (P = 0.007), lymph node metastasis (P = 0.001), distant metastasis (P = 0.014), clinical stage (P = 0.006), Ki-67 expression (P = 0.001), and heparanase expression (P < 0.001), without correlation with age, gender, tumor location, or tumor size. In univariate and multivariate analyses, ITLN-1 was an independent prognostic factor for longer survival of gastric cancer patients (P = 0.001). CONCLUSION The aberrant ITLN-1 expression in gastric cancer is correlated with clinicopathological features and may be a useful prognostic factor for predicting the outcomes of gastric cancer patients.
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Abstract
Pleural malignancies, including primary malignant pleural mesothelioma and secondary pleural metastasis of various tumours resulting in malignant pleural effusion, are frequent and lethal diseases that deserve devoted translational research efforts for improvements to be introduced to the clinic. This paper highlights select clinical advances that have been accomplished recently and that are based on preclinical research on pleural malignancies. Examples are the establishment of folate antimetabolites in mesothelioma treatment, the use of PET in mesothelioma management and the discovery of mesothelin as a marker of mesothelioma. In addition to established translational advances, this text focuses on recent research findings that are anticipated to impact clinical pleural oncology in the near future. Such progress has been substantial, including the development of a genetic mouse model of mesothelioma and of transplantable models of pleural malignancies in immunocompetent hosts, the deployment of stereological and imaging methods for integral assessment of pleural tumour burden, as well as the discovery of the therapeutic potential of aminobiphosphonates, histone deacetylase inhibitors and ribonucleases against malignant pleural disease. Finally, key obstacles to overcome towards a more rapid advancement of translational research in pleural malignancies are outlined. These include the dissection of cell-autonomous and paracrine pathways of pleural tumour progression, the study of mesothelioma and malignant pleural effusion separately from other tumours at both the clinical and preclinical levels, and the expansion of tissue banks and consortia of clinical research of pleural malignancies.
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Cristaudo A, Bonotti A, Simonini S, Bruno R, Foddis R. Soluble markers for diagnosis of malignant pleural mesothelioma. Biomark Med 2011; 5:261-73. [DOI: 10.2217/bmm.11.18] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Malignant pleural mesothelioma (MPM) is a highly aggressive and invasive tumor, whose incidence is expected to peak, in many countries, at the end of the present decade, 20–40 years after the peak of asbestos use (asbestos being the most important etiological factor). MPM has a poor prognosis, in part, owing to a difficult and often late diagnosis hindered by a lack of available tests able to diagnose or predict this cancer in its early stages. Recently, there has been increased interest in noninvasive, economic and well-accepted diagnostic tests for screening of asbestos-exposed subjects, as well as for monitoring response of MPM patients to treatment. Several markers have been studied in biofluids, such as serum, plasma and pleural effusions, especially using ELISA, and some of them are still under investigation. However, only mesothelin and ostepontin have proven levels of sensitivity and specificity that are worth testing in the clinical setting.
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Affiliation(s)
| | - Alessandra Bonotti
- Department of Endocrinology & Metabolism, Orthopedics & Traumatology, Occupational Medicine, University of Pisa, via Paradisa, 2 Pisa 56124, Italy
| | - Silvia Simonini
- Department of Endocrinology & Metabolism, Orthopedics & Traumatology, Occupational Medicine, University of Pisa, via Paradisa, 2 Pisa 56124, Italy
| | - Rossella Bruno
- Department of Endocrinology & Metabolism, Orthopedics & Traumatology, Occupational Medicine, University of Pisa, via Paradisa, 2 Pisa 56124, Italy
| | - Rudy Foddis
- Department of Endocrinology & Metabolism, Orthopedics & Traumatology, Occupational Medicine, University of Pisa, via Paradisa, 2 Pisa 56124, Italy
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