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Moniaux N, Geoffre N, Deshayes A, Dos Santos A, Job S, Lacoste C, Nguyen TS, Darnaud M, Friedel-Arboleas M, Guettier C, Purhonen J, Kallijärvi J, Amouyal G, Amouyal P, Bréchot C, R Vivès R, Buendia MA, Issad T, Faivre J. Tumor suppressive role of the antimicrobial lectin REG3A targeting the O -GlcNAc glycosylation pathway. Hepatology 2024:01515467-990000000-00943. [PMID: 38975812 DOI: 10.1097/hep.0000000000000993] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Accepted: 06/06/2024] [Indexed: 07/09/2024]
Abstract
BACKGROUND AND AIMS Antimicrobial proteins of the regenerating family member 3 alpha (REG3A) family provide a first line of protection against infections and transformed cells. Their expression is inducible by inflammation, which makes their role in cancer biology less clear since an immune-inflammatory context may preexist or coexist with cancer, as occurs in HCC. The aim of this study is to clarify the role of REG3A in liver carcinogenesis and to determine whether its carbohydrate-binding functions are involved. APPROACH AND RESULTS This study provides evidence for a suppressive role of REG3A in HCC by reducing O -GlcNAcylation in 2 mouse models of HCC, in vitro cell studies, and clinical samples. REG3A expression in hepatocytes significantly reduced global O -GlcNAcylation and O -GlcNAcylation of c-MYC in preneoplastic and tumor livers and markedly inhibited HCC development in REG3A-c-MYC double transgenic mice and mice exposed to diethylnitrosamine. REG3A modified O -GlcNAcylation without altering the expression or activity of O-linked N-acetylglucosaminyltransferase, O-linked N-acetylglucosaminyl hydrolase, or glutamine fructose-6-phosphate amidotransferase. Reduced O -GlcNAcylation was consistent with decreased levels of UDP-GlcNAc in precancerous and cancerous livers. This effect was linked to the ability of REG3A to bind glucose and glucose-6 phosphate, suggested by a REG3A mutant unable to bind glucose and glucose-6 phosphate and alter O -GlcNAcylation. Importantly, patients with cirrhosis with high hepatic REG3A expression had lower levels of O -GlcNAcylation and longer cancer-free survival than REG3A-negative cirrhotic livers. CONCLUSIONS REG3A helps fight liver cancer by reducing O -GlcNAcylation. This study suggests a new paradigm for the regulation of O -GlcNAc signaling in cancer-related pathways through interactions with the carbohydrate-binding function of REG3A.
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Affiliation(s)
- Nicolas Moniaux
- INSERM, U1193, Paul-Brousse University Hospital, Hepatobiliary Centre, Villejuif, France
- Faculté de Médecine, Université Paris-Saclay, Le Kremlin-Bicêtre, France
| | - Nicolas Geoffre
- INSERM, U1193, Paul-Brousse University Hospital, Hepatobiliary Centre, Villejuif, France
- Faculté de Médecine, Université Paris-Saclay, Le Kremlin-Bicêtre, France
| | - Alice Deshayes
- INSERM, U1193, Paul-Brousse University Hospital, Hepatobiliary Centre, Villejuif, France
- Faculté de Médecine, Université Paris-Saclay, Le Kremlin-Bicêtre, France
| | - Alexandre Dos Santos
- INSERM, U1193, Paul-Brousse University Hospital, Hepatobiliary Centre, Villejuif, France
- Faculté de Médecine, Université Paris-Saclay, Le Kremlin-Bicêtre, France
| | - Sylvie Job
- INSERM, U1193, Paul-Brousse University Hospital, Hepatobiliary Centre, Villejuif, France
- Faculté de Médecine, Université Paris-Saclay, Le Kremlin-Bicêtre, France
| | - Claire Lacoste
- INSERM, U1193, Paul-Brousse University Hospital, Hepatobiliary Centre, Villejuif, France
- Faculté de Médecine, Université Paris-Saclay, Le Kremlin-Bicêtre, France
| | - Tung-Son Nguyen
- INSERM, U1193, Paul-Brousse University Hospital, Hepatobiliary Centre, Villejuif, France
- Faculté de Médecine, Université Paris-Saclay, Le Kremlin-Bicêtre, France
| | - Marion Darnaud
- INSERM, U1193, Paul-Brousse University Hospital, Hepatobiliary Centre, Villejuif, France
- Faculté de Médecine, Université Paris-Saclay, Le Kremlin-Bicêtre, France
| | | | - Catherine Guettier
- INSERM, U1193, Paul-Brousse University Hospital, Hepatobiliary Centre, Villejuif, France
- Faculté de Médecine, Université Paris-Saclay, Le Kremlin-Bicêtre, France
- Assistance Publique-Hôpitaux de Paris (AP-HP), Université Paris-Saclay, Hôpital Bicêtre, Laboratoire Anatomie Pathologique, Le Kremlin Bicêtre, France
| | - Janne Purhonen
- Folkhälsan Research Center, Helsinki, Finland
- Stem Cells and Metabolism Research Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Jukka Kallijärvi
- Folkhälsan Research Center, Helsinki, Finland
- Stem Cells and Metabolism Research Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | | | | | | | - Romain R Vivès
- Université Grenoble Alpes, CNRS, CEA, IBS, Grenoble, France
| | - Marie Annick Buendia
- INSERM, U1193, Paul-Brousse University Hospital, Hepatobiliary Centre, Villejuif, France
- Faculté de Médecine, Université Paris-Saclay, Le Kremlin-Bicêtre, France
| | - Tarik Issad
- Institut Cochin, Université de Paris, CNRS, INSERM, Paris, France
| | - Jamila Faivre
- INSERM, U1193, Paul-Brousse University Hospital, Hepatobiliary Centre, Villejuif, France
- Faculté de Médecine, Université Paris-Saclay, Le Kremlin-Bicêtre, France
- Assistance Publique-Hôpitaux de Paris (AP-HP), Medical-University Department (DMU) Biology Genetics, Université Paris-Saclay, Paul-Brousse Hospital, Villejuif, France
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Wang L, Quan Y, Zhu Y, Xie X, Wang Z, Wang L, Wei X, Che F. The regenerating protein 3A: a crucial molecular with dual roles in cancer. Mol Biol Rep 2021; 49:1491-1500. [PMID: 34811636 PMCID: PMC8825409 DOI: 10.1007/s11033-021-06904-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2021] [Accepted: 10/29/2021] [Indexed: 12/20/2022]
Abstract
Introduction REG3A, a member of the third subclass of the Reg family, has been found in a variety of tissues but is not detected in immune cells. In the past decade, it has been determined that REG3A expression is regulated by injury, infection, inflammatory stimuli, and pro-cytokines via different signaling pathways, and it acts as a tissue-repair, bactericidal, and anti-inflammatory molecule in human diseases. Recently, the role of REG3A in cancer has received increasing attention. The present article aims to investigate the structure, expression, regulation, function of REG3A, and to highlight the potential role of REG3A in tumors. Methods A detailed literature search and data organization were conducted to find information about the role of REG3A in variety of physiological functions and tumors. Results Contradictory roles of REG3A have been reported in different tumor models. Some studies have demonstrated that high expression of REG3A in cancers can be oncogenic. Other studies have shown decreased REG3A expression in cancer cells as well as suppressed tumor growth. Conclusions Taken together, better understanding of REG3A may lead to new insights that make it a potentially useful target for cancer therapy.
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Affiliation(s)
- Liying Wang
- Department of Clinlical Medicine, Weifang Medical College, Weifang, China.,Department of Neurology, Linyi People's Hospital, Linyi, China
| | - Yanchun Quan
- Central Laboratory, Linyi People's Hospital, Linyi, China. .,Key Laboratory of Neurophysiology, Linyi People's Hospital, Linyi, Shandong, China. .,Key Laboratory of Tumor Biology, Linyi People's Hospital, Linyi, Shandong, China.
| | - Yanxi Zhu
- Central Laboratory, Linyi People's Hospital, Linyi, China.,Key Laboratory of Neurophysiology, Linyi People's Hospital, Linyi, Shandong, China.,Key Laboratory of Tumor Biology, Linyi People's Hospital, Linyi, Shandong, China
| | - Xiaoli Xie
- Central Laboratory, Linyi People's Hospital, Linyi, China.,Key Laboratory of Neurophysiology, Linyi People's Hospital, Linyi, Shandong, China.,Key Laboratory of Tumor Biology, Linyi People's Hospital, Linyi, Shandong, China
| | - Zhiqiang Wang
- Central Laboratory, Linyi People's Hospital, Linyi, China.,Key Laboratory of Neurophysiology, Linyi People's Hospital, Linyi, Shandong, China.,Key Laboratory of Tumor Biology, Linyi People's Hospital, Linyi, Shandong, China
| | - Long Wang
- Central Laboratory, Linyi People's Hospital, Linyi, China.,Key Laboratory of Neurophysiology, Linyi People's Hospital, Linyi, Shandong, China.,Key Laboratory of Tumor Biology, Linyi People's Hospital, Linyi, Shandong, China
| | - Xiuhong Wei
- Shandong First Medical University & Shandong Academy of Medical Sciences, Taian, Shandong, China
| | - Fengyuan Che
- Department of Neurology, Linyi People's Hospital, Linyi, China. .,Central Laboratory, Linyi People's Hospital, Linyi, China. .,Key Laboratory of Neurophysiology, Linyi People's Hospital, Linyi, Shandong, China. .,Key Laboratory of Tumor Biology, Linyi People's Hospital, Linyi, Shandong, China.
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3
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Cao Y, Tian Y, Liu Y, Su Z. Reg3β: A Potential Therapeutic Target for Tissue Injury and Inflammation-Associated Disorders. Int Rev Immunol 2021; 41:160-170. [PMID: 33426979 DOI: 10.1080/08830185.2020.1869731] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Since regenerating islet-derived 3β (Reg3β) was first reported, various studies have been conducted to explore the involvement of Reg3β in a gamut of maladies, such as diabetes, pancreatitis, pancreatic ductal adenocarcinoma, and extrapancreatic maladies such as inflammatory bowel disease, acute liver failure, and myocardial infarction. Surprisingly, there is currently no systematic review of Reg3β. Therefore, we summarize the structural characteristics, transcriptional regulation, putative receptors, and signaling pathways of Reg3β. The exact functional roles in various diseases, especially gastrointestinal and liver diseases, are also discussed. Reg3β plays multiple roles in promoting proliferation, inducing differentiation, preventing apoptosis, and resisting bacteria. The present review may provide new directions for the diagnosis and treatment of gastrointestinal, liver, and pancreatic diseases.
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Affiliation(s)
- Yuwen Cao
- International Genome Center, Jiangsu University, Zhenjiang, China.,Department of Immunology, Jiangsu University, Zhenjiang, China
| | - Yu Tian
- International Genome Center, Jiangsu University, Zhenjiang, China.,Department of Immunology, Jiangsu University, Zhenjiang, China
| | - Yueqin Liu
- Laboratory Center, the Fourth Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Zhaoliang Su
- International Genome Center, Jiangsu University, Zhenjiang, China.,Department of Immunology, Jiangsu University, Zhenjiang, China.,Laboratory Center, the Fourth Affiliated Hospital of Jiangsu University, Zhenjiang, China
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4
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Hepatocarcinoma-intestine-pancreas/pancreatitis-associated protein (HIP/PAP) confers protection against hepatic fibrosis through downregulation of transforming growth factor β receptor II. J Transl Med 2020; 100:466-482. [PMID: 31641222 DOI: 10.1038/s41374-019-0314-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2019] [Revised: 07/23/2019] [Accepted: 07/30/2019] [Indexed: 01/18/2023] Open
Abstract
Hepatocarcinoma-intestine-pancreas/pancreatitis-associated protein (HIP/PAP) has antimicrobial, antioxidant, anti-inflammatory, mitogenic, and antiapoptotic effects and thus exerts important functions in the maintenance of integrity and homeostasis of several organs, such as the gastrointestinal tract, pancreas, and liver. Although the potent hepatoprotective effect of HIP/PAP has been validated, its impact on liver fibrosis has not been reported. In this study, we evaluated the role of HIP/PAP on hepatic fibrosis and explored the possible underlying mechanisms. We found that the expression of HIP/PAP and its mouse counterpart, Reg3B, was markedly upregulated in fibrotic human or mouse livers. Intraperitoneal (i.p.) interleukin (IL)-10, IL-6, and TNF-α but not TGF-β1 significantly induced hepatic overexpression of Reg3B in mice. In both CCl4 and BDL liver fibrosis models, adenovirus-mediated ectopic expression of HIP/PAP markedly alleviated liver injury, inflammation, collagen deposition, hepatic stellate cell activation, and the overexpression of profibrotic cytokines, including transforming growth factor β1 (TGF-β1), platelet-derived growth factor (PDGF)-A, B, connective tissue growth factor (CTGF), and plasminogen activator inhibitor-1 (PAI-1), in mice. In vitro experiments demonstrated that, in addition to suppressing hepatic stellate cell proliferation and accelerating hepatocyte proliferation, HIP/PAP mitigated TGF-β1-induced hepatic stellate cell activation, hepatocyte epithelial-mesenchymal transition (EMT) and upregulated expression of profibrotic cytokines in both hepatic stellate cells and hepatocytes. Moreover, HIP/PAP attenuated the overexpression of TGF-β receptor II (TGF-βRII) in fibrotic mouse livers and decreased the basal expression of TGF-βRII in nonfibrotic mouse livers as well as in cultured hepatocytes and hepatic stellate cells, which is at least partly attributable to the TGF-β1-antagonizing function of HIP/PAP. This study indicates that increased expression of hepatic HIP/PAP serves as a countermeasure against liver injury and fibrosis. Exogenous supplementation of HIP/PAP might be a promising therapeutic agent for hepatic fibrosis as well as liver injury.
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5
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Comparative Analysis of Expression Profiles of Reg Signaling Pathways-Related Genes Between AHF and HCC. Biochem Genet 2019; 57:382-402. [PMID: 30600408 DOI: 10.1007/s10528-018-9900-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2018] [Accepted: 12/12/2018] [Indexed: 12/14/2022]
Abstract
Regenerating islet-derived protein (Reg) could participate in the occurrence of diabetes mellitus, inflammation, tumors, and other diseased or damaged tissues. However, the correlation of Reg with acute hepatic failure (AHF) and hepatocellular carcinoma (HCC) is poorly defined. To reveal the expression profiles of Reg family and their possible regulatory roles in AHF and HCC, rat models of HCC and AHF were separately established, and Rat Genome 230 2.0 was used to detect expression profiles of Reg-mediated signaling pathways-associated genes from liver tissues in AHF and HCC. The results showed that a total of 79 genes were significantly changed. Among these genes, 67 genes were the AHF-specific genes, 45 genes were the HCC-specific genes, and 33 genes were the common genes. Then, K-means clustering classified these genes into 4 clusters based on the gene expression similarity, and DAVID analysis showed that the above altered genes were mainly associated with stress response, inflammatory response, and cell cycle regulation. Thereafter, IPA software was used to analyze potential effects of these genes, and the predicted results suggested that the Reg-mediated JAK/STAT, NF-κB, MAPK (ERK1/2, P38 and JNK), PLC, and PI3K/AKT signaling pathways may account for the activated inflammation and cell proliferation, and the attenuated apoptosis and cell death during the occurrence of AHF and HCC.
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6
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Gao L, Wang KX, Zhou YZ, Fang JS, Qin XM, Du GH. Uncovering the anticancer mechanism of Compound Kushen Injection against HCC by integrating quantitative analysis, network analysis and experimental validation. Sci Rep 2018; 8:624. [PMID: 29330507 PMCID: PMC5766629 DOI: 10.1038/s41598-017-18325-7] [Citation(s) in RCA: 81] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2017] [Accepted: 12/08/2017] [Indexed: 12/17/2022] Open
Abstract
Compound Kushen Injection (CKI) is a Traditional Chinese Medicine (TCM) preparation that has been clinically used in China to treat various types of solid tumours. Although several studies have revealed that CKI can inhibit the proliferation of hepatocellular carcinoma (HCC) cell lines, the active compounds, potential targets and pathways involved in these effects have not been systematically investigated. Here, we proposed a novel idea of “main active compound-based network pharmacology” to explore the anti-cancer mechanism of CKI. Our results showed that CKI significantly suppressed the proliferation and migration of SMMC-7721 cells. Four main active compounds of CKI (matrine, oxymatrine, sophoridine and N-methylcytisine) were confirmed by the integration of ultra-performance liquid chromatography/mass spectrometry (UPLC-MS) with cell proliferation assays. The potential targets and pathways involved in the anti-HCC effects of CKI were predicted by a network pharmacology approach, and some of the crucial proteins and pathways were further validated by western blotting and metabolomics approaches. Our results indicated that CKI exerted anti-HCC effects via the key targets MMP2, MYC, CASP3, and REG1A and the key pathways of glycometabolism and amino acid metabolism. These results provide insights into the mechanism of CKI by combining quantitative analysis of components, network pharmacology and experimental validation.
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Affiliation(s)
- Li Gao
- Modern Research Center for Traditional Chinese Medicine, Shanxi University, Taiyuan, 030006, PR China.
| | - Ke-Xin Wang
- Modern Research Center for Traditional Chinese Medicine, Shanxi University, Taiyuan, 030006, PR China.,College of Chemistry and Chemical Engineering, Shanxi University, Taiyuan, 030006, China
| | - Yu-Zhi Zhou
- Modern Research Center for Traditional Chinese Medicine, Shanxi University, Taiyuan, 030006, PR China
| | - Jian-Song Fang
- Institute of Clinical Pharmacology, Guangzhou University of Chinese Medicine, Guangzhou, 510405, China
| | - Xue-Mei Qin
- Modern Research Center for Traditional Chinese Medicine, Shanxi University, Taiyuan, 030006, PR China.
| | - Guan-Hua Du
- Modern Research Center for Traditional Chinese Medicine, Shanxi University, Taiyuan, 030006, PR China.,Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100050, China
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7
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Ferreira AK, Mambelli LI, Pillai SY. Intervening in disease through genetically-modified bacteria. Best Pract Res Clin Gastroenterol 2017; 31:693-697. [PMID: 29566913 DOI: 10.1016/j.bpg.2017.09.017] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/04/2017] [Revised: 09/11/2017] [Accepted: 09/22/2017] [Indexed: 01/31/2023]
Abstract
The comprehension of the molecular basis of different diseases is rapidly being dissected as a consequence of advancing technology. Consequently, proteins with potential therapeutic usefulness, including cytokines and signaling molecules have been identified in the last decades. However, their clinical use is hampered by disadvantageous functional and economic considerations. One of the most important of these considerations is targeted topical delivery and also the synthesis of such proteins, which for intravenous use requires rigorous purification whereas proteins often do not withstand digestive degradation and thus cannot be applied per os. Recently, the idea of using genetically modified bacteria has emerged as an attempt to evade these important barriers. Using such bacteria can deliver therapeutic proteins or other molecules at place of disease, especially when disease is at a mucosal surface. Further, whereas intravenously applied therapeutic proteins require expensive methodology in order to become endotoxin-free, this is not necessary for local application of therapeutic proteins in the intestine. In addition, once created further propagation of genetically modified bacteria is both cheap and requires relatively little in conditioning with respect to transport of the medication, making such organisms also suitable for combating disease in developing countries with poor infrastructure. Although first human trials with such bacteria were already performed more as a decade ago, the recent revolution in our understanding of the role of human gut microbiome in health and diseases has unleashed a revolution in this field resulting in a plethora of potential novel prophylactic and therapeutic intervention against disease onset and development employing such organisms. Today, the engineering of human microbiome for health benefits and related applications now chances many aspects of biology, nanotechnology and chemistry. Here, we review genetically modified bacteria methodology as possible carriers of drug delivering and provided the origin and inspirations for new drug delivery systems.
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Affiliation(s)
- Adilson K Ferreira
- Laboratory of Tumor Immunology, Department of Immunology, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, Brazil; Alchemy, Innovation, Research & Development, CIETEC/IPEN, University of Sao Paulo, Sao Paulo, Brazil
| | - Lisley I Mambelli
- Alchemy, Innovation, Research & Development, CIETEC/IPEN, University of Sao Paulo, Sao Paulo, Brazil
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8
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Yao S, Luo Y, Zhang Z, Hu G, Zhu Z, Li F. Preclinical PET imaging of HIP/PAP using 1'- 18F-fluoroethyl- β-D-lactose. Oncotarget 2017; 8:75162-75173. [PMID: 29088854 PMCID: PMC5650409 DOI: 10.18632/oncotarget.20654] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2016] [Accepted: 07/06/2017] [Indexed: 02/07/2023] Open
Abstract
Purpose This study aims at preclinical evaluation of a recently reported lactose analogue, 1'-18F-fluoroethyl-β-D-lactose (18F-FEL), in binding to hepatocarcinoma-intestine-pancreas and pancreatitis-associated protein (HIP/PAP) in vitro and in vivo. Methods In this study, a multifunctional module was employed for the automated synthesis of 18F-FEL. Additional radiochemical purity, biodistribution, in vitro and in vivo competition, metabolic stability and micro-PET studies were performed using T3M4 and SK-BR-3 xenografts. Expression of HIP/PAP in T3M4 and SK-BR-3 tumor sections and cell lines were tested with immunohistochemistry (IHC) and western blot analysis. Results The synthesis of 18F-FEL was completed in 30 min, with a radiochemical yield of 20 ± 5% and specific activity of 14.2 ± 7.1 GBq/μmol. 18F-FEL exhibited high HIP/PAP-binding affinity with a half maximal inhibitory concentration (IC50) of 22.0 ± 4.0 nM. 18F-FEL demonstrated high stability and specific tumor accumulation, which was reduced by approximately 80% in a PET competition assay by co-injection of β-D-lactose. High expression of HIP/PAP was detected in T3M4 tumors and cell line, but negative result was found for SK-BR-3 cell line. Conclusion 18F-FEL has a high binding property to HIP/PAP, high stability and excellent pharmacokinetics in vivo and therefore warrants further evaluation in a proof-of-concept study in humans.
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Affiliation(s)
- Shaobo Yao
- Department of Nuclear Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Beijing, 100730, China.,Beijing Key Laboratory of Molecular Targeted Diagnosis and Therapy in Nuclear Medicine, Beijing, 100730, China
| | - Yaping Luo
- Department of Nuclear Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Beijing, 100730, China.,Beijing Key Laboratory of Molecular Targeted Diagnosis and Therapy in Nuclear Medicine, Beijing, 100730, China
| | - Zhenzhong Zhang
- Department of Nuclear Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Beijing, 100730, China.,Beijing Key Laboratory of Molecular Targeted Diagnosis and Therapy in Nuclear Medicine, Beijing, 100730, China
| | - Guilan Hu
- Department of Nuclear Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Beijing, 100730, China.,Beijing Key Laboratory of Molecular Targeted Diagnosis and Therapy in Nuclear Medicine, Beijing, 100730, China
| | - Zhaohui Zhu
- Department of Nuclear Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Beijing, 100730, China.,Beijing Key Laboratory of Molecular Targeted Diagnosis and Therapy in Nuclear Medicine, Beijing, 100730, China
| | - Fang Li
- Department of Nuclear Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Beijing, 100730, China.,Beijing Key Laboratory of Molecular Targeted Diagnosis and Therapy in Nuclear Medicine, Beijing, 100730, China
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Carvalho RDDO, do Carmo FLR, de Oliveira Junior A, Langella P, Chatel JM, Bermúdez-Humarán LG, Azevedo V, de Azevedo MS. Use of Wild Type or Recombinant Lactic Acid Bacteria as an Alternative Treatment for Gastrointestinal Inflammatory Diseases: A Focus on Inflammatory Bowel Diseases and Mucositis. Front Microbiol 2017; 8:800. [PMID: 28536562 PMCID: PMC5422521 DOI: 10.3389/fmicb.2017.00800] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2017] [Accepted: 04/19/2017] [Indexed: 12/26/2022] Open
Abstract
The human gastrointestinal tract (GIT) is highly colonized by bacterial communities, which live in a symbiotic relationship with the host in normal conditions. It has been shown that a dysfunctional interaction between the intestinal microbiota and the host immune system, known as dysbiosis, is a very important factor responsible for the development of different inflammatory conditions of the GIT, such as the idiopathic inflammatory bowel diseases (IBD), a complex and multifactorial disorder of the GIT. Dysbiosis has also been implicated in the pathogenesis of other GIT inflammatory diseases such as mucositis usually caused as an adverse effect of chemotherapy. As both diseases have become a great clinical problem, many research groups have been focusing on developing new strategies for the treatment of IBD and mucositis. In this review, we show that lactic acid bacteria (LAB) have been capable in preventing and treating both disorders in animal models, suggesting they may be ready for clinical trials. In addition, we present the most current studies on the use of wild type or genetically engineered LAB strains designed to express anti-inflammatory proteins as a promising strategy in the treatment of IBD and mucositis.
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Affiliation(s)
| | - Fillipe L R do Carmo
- Federal University of Minas Gerais - Instituto de Ciências BiológicasBelo Horizonte, Brazil
| | | | - Philippe Langella
- Micalis Institute, Institut National de la Recherche Agronomique, AgroParisTech, Université Paris-SaclayJouy-en-Josas, France
| | - Jean-Marc Chatel
- Micalis Institute, Institut National de la Recherche Agronomique, AgroParisTech, Université Paris-SaclayJouy-en-Josas, France
| | - Luis G Bermúdez-Humarán
- Micalis Institute, Institut National de la Recherche Agronomique, AgroParisTech, Université Paris-SaclayJouy-en-Josas, France
| | - Vasco Azevedo
- Federal University of Minas Gerais - Instituto de Ciências BiológicasBelo Horizonte, Brazil
| | - Marcela S de Azevedo
- Federal University of Minas Gerais - Instituto de Ciências BiológicasBelo Horizonte, Brazil
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10
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Huan C, Kim D, Ou P, Alfonso A, Stanek A. Mechanisms of interleukin-22’s beneficial effects in acute pancreatitis. World J Gastrointest Pathophysiol 2016; 7:108-116. [PMID: 26909233 PMCID: PMC4753176 DOI: 10.4291/wjgp.v7.i1.108] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/11/2015] [Revised: 10/18/2015] [Accepted: 11/25/2015] [Indexed: 02/06/2023] Open
Abstract
Acute pancreatitis (AP) is a disorder characterized by parenchymal injury of the pancreas controlled by immune cell-mediated inflammation. AP remains a significant challenge in the clinic due to a lack of specific and effective treatment. Knowledge of the complex mechanisms that regulate the inflammatory response in AP is needed for the development of new approaches to treatment, since immune cell-derived inflammatory cytokines have been recognized to play critical roles in the pathogenesis of the disease. Recent studies have shown that interleukin (IL)-22, a cytokine secreted by leukocytes, when applied in the severe animal models of AP, protects against the inflammation-mediated acinar injury. In contrast, in a mild AP model, endogenous IL-22 has been found to be a predominantly anti-inflammatory mediator that inhibits inflammatory cell infiltration via the induction of Reg3 proteins in acinar cells, but does not protect against acinar injury in the early stage of AP. However, constitutively over-expressed IL-22 can prevent the initial acinar injury caused by excessive autophagy through the induction of the anti-autophagic proteins Bcl-2 and Bcl-XL. Thus IL-22 plays different roles in AP depending on the severity of the AP model. This review focuses on these recently reported findings for the purpose of better understanding IL-22’s regulatory roles in AP which could help to develop a novel therapeutic strategy.
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11
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Loncle C, Bonjoch L, Folch-Puy E, Lopez-Millan MB, Lac S, Molejon MI, Chuluyan E, Cordelier P, Dubus P, Lomberk G, Urrutia R, Closa D, Iovanna JL. IL17 Functions through the Novel REG3β-JAK2-STAT3 Inflammatory Pathway to Promote the Transition from Chronic Pancreatitis to Pancreatic Cancer. Cancer Res 2015; 75:4852-62. [PMID: 26404002 DOI: 10.1158/0008-5472.can-15-0896] [Citation(s) in RCA: 79] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2015] [Accepted: 08/14/2015] [Indexed: 12/22/2022]
Abstract
Pancreatic ductal adenocarcinoma (PDAC) offers an optimal model for discovering "druggable" molecular pathways that participate in inflammation-associated cancer development. Chronic pancreatitis, a common prolonged inflammatory disease, behaves as a well-known premalignant condition that contributes to PDAC development. Although the mechanisms underlying the pancreatitis-to-cancer transition remain to be fully elucidated, emerging evidence supports the hypothesis that the actions of proinflammatory mediators on cells harboring Kras mutations promote neoplastic transformation. Recent elegant studies demonstrated that the IL17 pathway mediates this phenomenon and can be targeted with antibodies, but the downstream mechanisms by which IL17 functions during this transition are currently unclear. In this study, we demonstrate that IL17 induces the expression of REG3β, a well-known mediator of pancreatitis, during acinar-to-ductal metaplasia and in early pancreatic intraepithelial neoplasia (PanIN) lesions. Furthermore, we found that REG3β promotes cell growth and decreases sensitivity to cell death through activation of the gp130-JAK2-STAT3-dependent pathway. Genetic inactivation of REG3β in the context of oncogenic Kras-driven PDAC resulted in reduced PanIN formation, an effect that could be rescued by administration of exogenous REG3β. Taken together, our findings provide mechanistic insight into the pathways underlying inflammation-associated pancreatic cancer, revealing a dual and contextual pathophysiologic role for REG3β during pancreatitis and PDAC initiation.
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Affiliation(s)
- Celine Loncle
- Centre de Recherche en Cancérologie de Marseille (CRCM), INSERM U1068, CNRS UMR 7258, Aix-Marseille Université and Institut Paoli-Calmettes, Parc Scientifique et Technologique de Luminy, Marseille, France
| | - Laia Bonjoch
- Experimental Pathology Department, IIBB-CSIC-IDIBAPS, Barcelona, Spain
| | - Emma Folch-Puy
- Experimental Pathology Department, IIBB-CSIC-IDIBAPS, Barcelona, Spain
| | - Maria Belen Lopez-Millan
- Centre de Recherche en Cancérologie de Marseille (CRCM), INSERM U1068, CNRS UMR 7258, Aix-Marseille Université and Institut Paoli-Calmettes, Parc Scientifique et Technologique de Luminy, Marseille, France
| | - Sophie Lac
- Centre de Recherche en Cancérologie de Marseille (CRCM), INSERM U1068, CNRS UMR 7258, Aix-Marseille Université and Institut Paoli-Calmettes, Parc Scientifique et Technologique de Luminy, Marseille, France
| | - Maria Inés Molejon
- Centre de Recherche en Cancérologie de Marseille (CRCM), INSERM U1068, CNRS UMR 7258, Aix-Marseille Université and Institut Paoli-Calmettes, Parc Scientifique et Technologique de Luminy, Marseille, France
| | - Eduardo Chuluyan
- Laboratory of Immunomodulators, School of Medicine, Centro de Estudios Farmacológicos y Botánicos (CEFYBO), Consejo Nacional de Investigaciones Científicas y Tecnológicas (CONICET)-University of Buenos Aires, Buenos Aires, Argentina
| | - Pierre Cordelier
- INSERM UMR U1037, Centre de Recherche sur le Cancer de Toulouse, CHU Rangueil, Toulouse, France
| | - Pierre Dubus
- EA2406, Histologie et pathologie moléculaire des tumeurs, Université de Bordeaux, Bordeaux, France
| | - Gwen Lomberk
- Laboratory of Epigenetics and Chromatin Dynamics, Gastroenterology Research Unit, Departments of Biochemistry and Molecular Biology, Biophysics, and Medicine, Mayo Clinic, Rochester, New York
| | - Raul Urrutia
- Laboratory of Epigenetics and Chromatin Dynamics, Gastroenterology Research Unit, Departments of Biochemistry and Molecular Biology, Biophysics, and Medicine, Mayo Clinic, Rochester, New York
| | - Daniel Closa
- Experimental Pathology Department, IIBB-CSIC-IDIBAPS, Barcelona, Spain
| | - Juan L Iovanna
- Centre de Recherche en Cancérologie de Marseille (CRCM), INSERM U1068, CNRS UMR 7258, Aix-Marseille Université and Institut Paoli-Calmettes, Parc Scientifique et Technologique de Luminy, Marseille, France.
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12
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Abstract
The regenerating gene (Reg) family is a group of small molecules that includes four members found in various species, although only three are found in human tissues. Their expression is stimulated by certain growth factors or cytokines. The Reg family plays different roles in proliferation, migration, and anti-apoptosis through activating different signaling pathways. Their dysexpression is closely associated with a number of human conditions and diseases such as inflammation and cancer, especially in the human digestive system. Clinically, upregulation of Reg proteins is usually demonstrated in histological sections and sera from cancer patients. Therefore, Reg proteins can predict the progression and prognosis of cancers, especially those of the digestive tract, and can also act as diagnostic markers and therapeutic targets.
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13
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Gironella M, Calvo C, Fernández A, Closa D, Iovanna JL, Rosello-Catafau J, Folch-Puy E. Reg3β deficiency impairs pancreatic tumor growth by skewing macrophage polarization. Cancer Res 2013; 73:5682-94. [PMID: 23867474 DOI: 10.1158/0008-5472.can-12-3057] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The lectin Reg3β provides crucial protection to various tissues against inflammation, a potential risk factor for pancreatic ductal adenocarcinoma. Reg3β is also overexpressed in serum and pancreatic juice from patients with this cancer, but its function in this context remains to be elucidated. In this study, we investigated the role of Reg3β in tumor development in an orthotopic mouse model of pancreatic cancer. Reg3β deletion in mice drastically impaired pancreatic tumor growth, correlating with decreased angiogenesis and increased apoptosis of tumor cells. Moreover, Reg3β deficiency resulted in an alteration of the tumoral immune microenvironment, reflected by a decrease in the M2/M1 ratio of tumor-associated macrophages and an upregulation of CD3(+) cell infiltration. Addition of Reg3β to prestimulated RAW 264.7 or primary macrophages enhanced M2 polarization through the activation of STAT3 signaling pathway. Conditioned media from Reg3β-M2-polarized primary macrophages inhibited apoptosis and prolonged the viability of Panc02 tumor cells. Our studies reveal a novel role for Reg3β as a tumor promoter in pancreatic adenocarcinoma through the regulation of tumor stroma. Thus, inhibition of this protein may be a useful strategy in treatment of pancreatic cancer.
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Affiliation(s)
- Meritxell Gironella
- Authors' Affiliations: Gastroenterology Department, Hospital Clinic of Barcelona, Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), IDIBAPS, Barcelona, Catalonia; Experimental Pathology Department, IIBB-CSIC, Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), Barcelona, Catalonia, Spain; and Centre de Recherche en Cancérologie de Marseille (CRCM), Unité 1068, Marseille, France
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14
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Lv Y, Yang X, Huo Y, Tian H, Li S, Yin Y, Hao Z. Adenovirus-mediated hepatocarcinoma-intestine-pancreas/pancreatitis-associated protein suppresses dextran sulfate sodium-induced acute ulcerative colitis in rats. Inflamm Bowel Dis 2012; 18:1950-60. [PMID: 22419609 DOI: 10.1002/ibd.22887] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/25/2011] [Accepted: 12/28/2011] [Indexed: 01/04/2023]
Abstract
BACKGROUND Although increased expression of hepatocarcinoma-intestine-pancreas/pancreatitis-associated protein (HIP/PAP) has been reported in ulcerative colitis (UC), its role in UC remains unclear. This study was designed to assess the function of HIP/PAP in experimental UC and further to explore its underlying mechanisms. METHODS Recombinant adenovirus was prepared to mediate ectopic expression of HIP/PAP in the colon of rats. The effect of HIP/PAP on dextran sodium sulfate (DSS)-induced colitis was assessed by disease activity index (DAI), macroscopic, and histological evaluations. Superoxide dismutase (SOD) and myeloperoxidase (MPO) activities, malondialdehyde (MDA) content, and tumor necrosis factor α (TNF-α) and interleukin-6 (IL-6) production were determined in colonic mucosa. Proliferation cell nuclear antigen (PCNA) was immunostained to reflect the proliferation of colonic epithelia. The effects of HIP/PAP on proliferation and H(2)O(2) -induced apoptosis of SW480 and LoVo colonic adenocarcinoma cells were also determined. Gene expression profiles in SW480 after HIP/PAP overexpression were analyzed by microarray analysis. RESULTS The protective effect of HIP/PAP against DSS-induced colitis in rats was confirmed. Ectopic expression of HIP/PAP resulted in attenuation of oxidative damage, reduction of TNF-α and IL-6 expression, and elevation of epithelial proliferation in colonic mucosa and led to decreased apoptosis and increased proliferation in colonic adenocarcinoma cells. Microarray analysis revealed altered expression of inflammation-related molecules, growth factors, proliferation-related molecules, and antioxidant enzymes under overexpression of HIP/PAP. CONCLUSIONS HIP/PAP has a protective effect against DSS-induced colitis in rats via inhibiting inflammation, alleviating oxidative damage, and promoting colonic epithelium regeneration. HIP/PAP might represent a new promising therapeutic strategy in UC.
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Affiliation(s)
- Yifei Lv
- Department of Gastroenterology, First Affiliated Hospital, School of Medicine, Xi'an Jiaotong University, Xi'an, China
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15
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Bhang HEC, Pomper MG. Cancer imaging: Gene transcription-based imaging and therapeutic systems. Int J Biochem Cell Biol 2012; 44:684-9. [PMID: 22349219 PMCID: PMC3324783 DOI: 10.1016/j.biocel.2012.02.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2011] [Revised: 01/31/2012] [Accepted: 02/01/2012] [Indexed: 12/11/2022]
Abstract
Molecular-genetic imaging of cancer is in its infancy. Over the past decade gene reporter systems have been optimized in preclinical models and some have found their way into the clinic. The search is on to find the best combination of gene delivery vehicle and reporter imaging system that can be translated safely and quickly. The goal is to have a combination that can detect a wide variety of cancers with high sensitivity and specificity in a way that rivals the current clinical standard, positron emission tomography with [(18)F]fluorodeoxyglucose. To do so will require systemic delivery of reporter genes for the detection of micrometastases, and a nontoxic vector, whether viral or based on nanotechnology, to gain widespread acceptance by the oncology community. Merger of molecular-genetic imaging with gene therapy, a strategy that has been employed in the past, will likely be necessary for such imaging to reach widespread clinical use.
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Affiliation(s)
- Hyo-eun C Bhang
- Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins Medical Institutions, Baltimore, MD 21231, USA
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16
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Cardinale V, Wang Y, Carpino G, Mendel G, Alpini G, Gaudio E, Reid LM, Alvaro D. The biliary tree--a reservoir of multipotent stem cells. Nat Rev Gastroenterol Hepatol 2012; 9:231-40. [PMID: 22371217 DOI: 10.1038/nrgastro.2012.23] [Citation(s) in RCA: 144] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The biliary tree is composed of intrahepatic and extrahepatic bile ducts, lined by mature epithelial cells called cholangiocytes, and contains peribiliary glands deep within the duct walls. Branch points, such as the cystic duct, perihilar and periampullar regions, contain high numbers of these glands. Peribiliary glands contain multipotent stem cells, which self-replicate and can differentiate into hepatocytes, cholangiocytes or pancreatic islets, depending on the microenvironment. Similar cells-presumably committed progenitor cells-are found in the gallbladder (which lacks peribiliary glands). The stem and progenitor cell characteristics indicate a common embryological origin for the liver, biliary tree and pancreas, which has implications for regenerative medicine as well as the pathophysiology and oncogenesis of midgut organs. This Perspectives article describes a hypothetical model of cell lineages starting in the duodenum and extending to the liver and pancreas, and thought to contribute to ongoing organogenesis throughout life.
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Affiliation(s)
- Vincenzo Cardinale
- Division of Gastroenterology, Department of Medico-Surgical Sciences and Biotechnology, Fondazione Eleonora Lorillard Spencer Cenci, Polo Pontino, Corso della Repubblica 79, 04100 Latina, Italy
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17
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Wang Y, Jacovetti C, Li B, Siddique T, Xiong X, Yin H, Wang M, Zhao H, Liu JL. Coordinated age-dependent and pancreatic-specific expression of mouse Reg2Reg3α, and Reg3β genes. Growth Factors 2011; 29:72-81. [PMID: 21410322 DOI: 10.3109/08977194.2011.562866] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Reg family proteins such as Reg1 and islet neogenesis-associated protein (INGAP) have long been implicated in the growth and/or neogenesis of pancreatic islet cells. Recent reports further suggest similar roles to be played by new members such as Reg2, Reg3α, and Reg3β. We have studied their age-, isoform-, and tissue-specific expressions. RNA and protein were isolated from C57BL/6 mice aged 7, 30, and 90 days. Using real-time polymerase chain reaction, the levels of Reg gene expression in the pancreas were 20-600-fold higher than that in other tissues (≫duodenum>stomach>liver); gene expression of Reg2, Reg3α, and Reg3β was age dependent as it was hardly detectable at day 7, increased drastically at day 30, and significantly decreased at day 90; the levels of pancreatic proteins displayed similar age-dependent variations. Using dual-labeled immunofluorescence, Reg2, Reg3α, and Reg3β were abundantly expressed in most acinar cells of the pancreas, in contrast to INGAP which exhibited stepwise increases from day 7 to day 90 and colocalized with the α-cells. These new Reg genes were mainly expressed in the pancreas, with clear age-dependent and isoform-specific patterns.
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Affiliation(s)
- Ying Wang
- School of Life Science and Technology, China Pharmaceutical University, Nanjing, P.R. China
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18
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Flores LG, Bertolini S, Yeh HH, Young D, Mukhopadhyay U, Pal A, Ying Y, Volgin A, Shavrin A, Soghomonyan S, Tong W, Bornmann W, Alauddin MM, Logsdon C, Gelovani JG. Detection of pancreatic carcinomas by imaging lactose-binding protein expression in peritumoral pancreas using [18F]fluoroethyl-deoxylactose PET/CT. PLoS One 2009; 4:e7977. [PMID: 19956730 PMCID: PMC2776527 DOI: 10.1371/journal.pone.0007977] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2009] [Accepted: 10/27/2009] [Indexed: 01/04/2023] Open
Abstract
Background Early diagnosis of pancreatic carcinoma with highly sensitive diagnostic imaging methods could save lives of many thousands of patients, because early detection increases resectability and survival rates. Current non-invasive diagnostic imaging techniques have inadequate resolution and sensitivity for detection of small size (∼2–3 mm) early pancreatic carcinoma lesions. Therefore, we have assessed the efficacy of positron emission tomography and computer tomography (PET/CT) imaging with β-O-D-galactopyranosyl-(1,4′)-2′-deoxy-2′-[18F]fluoroethyl-D-glucopyranose ([18F]FEDL) for detection of less than 3 mm orthotopic xenografts of L3.6pl pancreatic carcinomas in mice. [18F]FEDL is a novel radioligand of hepatocarcinoma-intestine-pancreas/pancreatitis-associated protein (HIP/PAP), which is overexpressed in peritumoral pancreatic acinar cells. Methodology/Principal Findings Dynamic PET/CT imaging demonstrated rapid accumulation of [18F]FEDL in peritumoral pancreatic tissue (4.04±2.06%ID/g), bi-exponential blood clearance with half-lives of 1.65±0.50 min and 14.14±3.60 min, and rapid elimination from other organs and tissues, predominantly by renal clearance. Using model-independent graphical analysis of dynamic PET data, the average distribution volume ratio (DVR) for [18F]FEDL in peritumoral pancreatic tissue was estimated as 3.57±0.60 and 0.94±0.72 in sham-operated control pancreas. Comparative analysis of quantitative autoradiographic images and densitometry of immunohistochemically stained and co-registered adjacent tissue sections demonstrated a strong linear correlation between the magnitude of [18F]FEDL binding and HIP/PAP expression in corresponding regions (r = 0.88). The in situ analysis demonstrated that at least a 2–4 fold apparent lesion size amplification was achieved for submillimeter tumors and to nearly half a murine pancreas for tumors larger than 3 mm. Conclusion/Significance We have demonstrated the feasibility of detection of early pancreatic tumors by non-invasive imaging with [18F]FEDL PET/CT of tumor biomarker HIP/PAP over-expressed in peritumoral pancreatic tissue. Non-invasive non-invasive detection of early pancreatic carcinomas with [18F]FEDL PET/CT imaging should aid the guidance of biopsies and additional imaging procedures, facilitate the resectability and improve the overall prognosis.
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Affiliation(s)
- Leo Garcia Flores
- Department of Experimental Diagnostic Imaging, Center for Advanced Biomedical Imaging Research (CABIR), The University of Texas MD Anderson Cancer Center, Houston, Texas, United States of America
| | - Susanna Bertolini
- Department of Experimental Diagnostic Imaging, Center for Advanced Biomedical Imaging Research (CABIR), The University of Texas MD Anderson Cancer Center, Houston, Texas, United States of America
| | - Hsin Hsin Yeh
- Department of Experimental Diagnostic Imaging, Center for Advanced Biomedical Imaging Research (CABIR), The University of Texas MD Anderson Cancer Center, Houston, Texas, United States of America
| | - Daniel Young
- Department of Experimental Diagnostic Imaging, Center for Advanced Biomedical Imaging Research (CABIR), The University of Texas MD Anderson Cancer Center, Houston, Texas, United States of America
| | - Uday Mukhopadhyay
- Department of Experimental Diagnostic Imaging, Center for Advanced Biomedical Imaging Research (CABIR), The University of Texas MD Anderson Cancer Center, Houston, Texas, United States of America
| | - Ashutosh Pal
- Department of Experimental Diagnostic Imaging, Center for Advanced Biomedical Imaging Research (CABIR), The University of Texas MD Anderson Cancer Center, Houston, Texas, United States of America
| | - Yunming Ying
- Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, Texas, United States of America
| | - Andrei Volgin
- Department of Experimental Diagnostic Imaging, Center for Advanced Biomedical Imaging Research (CABIR), The University of Texas MD Anderson Cancer Center, Houston, Texas, United States of America
| | - Aleksandr Shavrin
- Department of Experimental Diagnostic Imaging, Center for Advanced Biomedical Imaging Research (CABIR), The University of Texas MD Anderson Cancer Center, Houston, Texas, United States of America
| | - Suren Soghomonyan
- Department of Experimental Diagnostic Imaging, Center for Advanced Biomedical Imaging Research (CABIR), The University of Texas MD Anderson Cancer Center, Houston, Texas, United States of America
| | - William Tong
- Department of Experimental Diagnostic Imaging, Center for Advanced Biomedical Imaging Research (CABIR), The University of Texas MD Anderson Cancer Center, Houston, Texas, United States of America
| | - William Bornmann
- Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, Texas, United States of America
| | - Mian M. Alauddin
- Department of Experimental Diagnostic Imaging, Center for Advanced Biomedical Imaging Research (CABIR), The University of Texas MD Anderson Cancer Center, Houston, Texas, United States of America
| | - Craig Logsdon
- Department of Cancer Biology, The University of Texas MD Anderson Cancer Center, Houston, Texas, United States of America
| | - Juri G. Gelovani
- Department of Experimental Diagnostic Imaging, Center for Advanced Biomedical Imaging Research (CABIR), The University of Texas MD Anderson Cancer Center, Houston, Texas, United States of America
- * E-mail:
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19
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Ferrés-Masó M, Sacilotto N, López-Rodas G, Dagorn JC, Iovanna JL, Closa D, Folch-Puy E. PAP1 signaling involves MAPK signal transduction. Cell Mol Life Sci 2009; 66:2195-204. [PMID: 19434369 PMCID: PMC11115593 DOI: 10.1007/s00018-009-0040-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2009] [Revised: 03/26/2009] [Accepted: 04/21/2009] [Indexed: 12/21/2022]
Abstract
Pancreatitis-associated protein 1 (PAP1) belongs to the Reg family of secretory proteins. Several important biological roles have been attributed to PAP1 but the signaling pathways activated by this protein remain only partially understood. Here, we describe the intracellular pathways triggered by PAP1 in a pancreatic acinar cell line. Taking advantage of the fact that PAP1 induces its own transcription, we performed ChIP assays to analyze the recruitment of transcriptional factors on its promoter. Our results show that PAP1 increased the transactivation activity of pap1 and the binding on its promoter of the nuclear factors C/EBPbeta, P-CREB, P-ELK1, EGR1, STAT3, and ETS2, which are downstream targets of MAPK signaling. p44/42, p38, and JNK MAPKs activity increased after PAP1 treatment. In addition, pharmacological inhibition of these kinases markedly inhibited the induction of pap1 mRNA. Taken together, these results indicated that the mechanism of PAP1 action involves the activation of the MAPK superfamily.
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Affiliation(s)
- M. Ferrés-Masó
- Department of Experimental Pathology, Institut d’Investigacions Biomèdiques de Barcelona, Consejo Superior de Investigaciones Científicas-Institut d’Investigacions Biomèdiques August Pi i Sunyer, Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas, c/Rosselló 161, 7º, 08036 Barcelona, Spain
| | - N. Sacilotto
- Department of Biochemistry and Molecular Biology, University of Valencia, Valencia, Spain
| | - G. López-Rodas
- Department of Biochemistry and Molecular Biology, University of Valencia, Valencia, Spain
| | - J. C. Dagorn
- Centre de Recherche INSERM U.624, Stress Cellulaire, Marseille, France
| | - J. L. Iovanna
- Centre de Recherche INSERM U.624, Stress Cellulaire, Marseille, France
| | - D. Closa
- Department of Experimental Pathology, Institut d’Investigacions Biomèdiques de Barcelona, Consejo Superior de Investigaciones Científicas-Institut d’Investigacions Biomèdiques August Pi i Sunyer, Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas, c/Rosselló 161, 7º, 08036 Barcelona, Spain
| | - E. Folch-Puy
- Department of Experimental Pathology, Institut d’Investigacions Biomèdiques de Barcelona, Consejo Superior de Investigaciones Científicas-Institut d’Investigacions Biomèdiques August Pi i Sunyer, Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas, c/Rosselló 161, 7º, 08036 Barcelona, Spain
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20
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Cao G, Ma J, Zhang Y, Liu B, Li F. Pancreatitis-associated protein is related closely to neoplastic proliferative activity in patients with colorectal carcinoma. Anat Rec (Hoboken) 2009; 292:249-53. [PMID: 19051257 DOI: 10.1002/ar.20806] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Pancreatitis-associated protein (PAP) is a secretory protein that is not only expressed during acute pancreatitis but also in pancreatic adenocarcinoma, gastric carcinoma, hepatocellular carcinoma, and colorectal carcinoma. Expression in carcinoma might be another characteristic of PAP. The aim of our study was to assess, in 27 patients undergoing surgery for colorectal carcinoma, the expression of the PAP mRNA and to evaluate its association with DNA ploidy and proliferative activity (S-phase fraction, SPF) by reverse transcriptase-polymerase chain reaction (RT-PCR) and flow cytometric analysis (FCM). PAP mRNA was expressed in 29.6% (8 of 27) of the patients with colorectal carcinoma. DNA aneuploid and high SPF were found in 87.5% (7 of 8) of patients with PAP mRNA positive colorectal carcinoma. The serum PAP level was significantly elevated in patients with colorectal carcinoma when compared with the healthy subjects. Twelve of the 27 patients with colorectal carcinoma had high serum PAP concentrations (>25 ng/mL) and the mean SPF was 17.82% +/- 8.02%, which was significantly higher compared with the normal colorectal tissue group (7.33% +/- 3.18%, P < 0.05). The mean serum PAP concentration of DNA aneuploidy colorectal carcinomas was 46.67 +/- 17.58 ng/mL, which was significantly different when compared with the DNA diploidy group (19.18 +/- 8.89 ng/mL, P < 0.05). PAP mRNA expression and serum PAP levels are closely related to neoplastic proliferative activity in patients with colorectal carcinoma. No significant differences are observed between PAP mRNA expression and clinicopathologic parameters (P > 0.05).
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Affiliation(s)
- Guang Cao
- Department of General Surgery, Anzhen Hospital, Capital Medical University, Beijing, China
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21
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Expression and localization of regenerating gene I in a rat liver regeneration model. Biochem Biophys Res Commun 2009; 380:472-7. [PMID: 19284990 DOI: 10.1016/j.bbrc.2009.01.126] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2009] [Accepted: 01/16/2009] [Indexed: 01/31/2023]
Abstract
Regenerating gene (Reg) I has been identified as a regenerative/proliferative factor for pancreatic islet cells. We examined Reg I expression in the regenerating liver of a rat model that had been administered 2-acetylaminofluorene and treated with 70% partial hepatectomy (2-AAF/PH model), where hepatocyte and cholangiocyte proliferation was suppressed and the hepatic stem cells and/or hepatic progenitor cells were activated. In a detailed time course study of activation of hepatic stem cells in the 2-AAF/PH model, utilizing immunofluorescence staining with antibodies of Reg I and other cell-type-specific markers, we found that Reg I-expressing cells are present in the bile ductules and increased during regeneration. Reg I-expressing cells were colocalized with CK19, OV6, and AFP. These results demonstrate that Reg I is significantly upregulated in the liver of the 2-AAF/PH rat model, accompanied by the formation of bile ductules during liver regeneration.
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22
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Hervé J, Cunha AS, Liu B, Valogne Y, Longuet M, Boisgard R, Brégerie O, Roux J, Guettier C, Calès P, Tavitian B, Samuel D, Clerc J, Bréchot C, Faivre J. Internal radiotherapy of liver cancer with rat hepatocarcinoma-intestine-pancreas gene as a liver tumor-specific promoter. Hum Gene Ther 2008; 19:915-26. [PMID: 18759560 DOI: 10.1089/hum.2007.153] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
The hepatocarcinoma-intestine-pancreas (HIP) gene, also called pancreatitis-associated protein-1 (PAP1) or Reg IIIalpha, is activated in most human hepatocellular carcinomas (HCCs) but not in normal liver, which suggests that HIP regulatory sequence could be used as efficient liver tumor-specific promoters to express a therapeutic polynucleotide in liver cancer. The sodium iodide symporter (NIS), which has recognized therapeutic and reporter gene properties, is appropriate to evaluate the transcriptional strength and specificity of the HIP promoter in HCC. For this purpose, we constructed a recombinant rat HIP-NIS adenoviral vector (AdrHIP-NIS), and evaluated its performance as a mediator of selective radioiodide uptake in tumor hepatocytes. Western blot, immunofluorescence, and iodide uptake assays were performed in AdrHIP-NIS-infected primary hepatocytes and transformed hepatic and nonhepatic cells. Nuclear imaging, tissue counting and immunohistochemistry were performed in normal and HCC-bearing Wistar rats infected with AdrHIP-NIS intratumorally or via the hepatic artery. In AdrHIP-NIS-infected transformed hepatic cells, functional NIS was strongly expressed, as in cells infected with a cytomegalovirus-NIS vector. No NIS expression was found in AdrHIP-NIS-infected normal hepatocytes or transformed nonhepatic cells. In rats bearing multinodular HCC, AdrHIP-NIS triggered functional NIS expression that was preferential in tumor hepatocytes. Administration of 18 mCi of (131)I resulted in the destruction of AdrHIP-NIS-injected nodules. This study has identified the rHIP regulatory sequence as a potent liver tumor-specific promoter for the transfer of therapeutic genes, and AdrHIP-NIS-mediated (131)I therapy as a valuable option for the treatment of multinodular HCC.
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Affiliation(s)
- Julie Hervé
- INSERM U785, Centre Hépatobiliaire, Villejuif F-94800, France
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Deletion of the mouse RegIIIbeta (Reg2) gene disrupts ciliary neurotrophic factor signaling and delays myelination of mouse cranial motor neurons. Proc Natl Acad Sci U S A 2008; 105:11400-5. [PMID: 18678917 DOI: 10.1073/pnas.0711978105] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
A large number of cytokines and growth factors support the development and subsequent maintenance of postnatal motor neurons. RegIIIbeta, also known as Reg2 in rat and HIP/PAP1 in humans, is a member of a family of growth factors found in many areas of the body and previously shown to play an important role in both the development and regeneration of subsets of motor neurons. It has been suggested that RegIIIbeta expressed by motor neurons is both an obligatory intermediate in the downstream signaling of the leukemia inhibitory factor/ciliary neurotrophic factor (CNTF) family of cytokines, maintaining the integrity of motor neurons during development, as well as a powerful influence on Schwann cell growth during regeneration of the peripheral nerve. Here we report that in mice with a deletion of the RegIIIbeta gene, motor neuron survival was unaffected up to 28 weeks after birth. However, there was no CNTF-mediated rescue of neonatal facial motor neurons after axotomy in KO animals when compared with wild-type. In mice, RegIIIbeta positive motor neurons are concentrated in cranial motor nuclei that are involved in the patterning of swallowing and suckling. We found that suckling was impaired in RegIIIbeta KO mice and correlated this with a significant delay in myelination of the hypoglossal nerve. In summary, we propose that RegIIIbeta has an important role to play in the developmental fine-tuning of neonatal motor behaviors mediating the response to peripherally derived cytokines and growth factors and regulating the myelination of motor axons.
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HERVE JULIE, SA CUNHA ANTONIO, LIU BINGKAI, VALOGNE YANNICK, LONGUET MICHELE, BOISGARD RAPHAEL, BREGERIE OLIVIER, ROUX JEROME, GUETTIER CATHERINE, CALES PAUL, TAVITIAN BERTRAND, SAMUEL DIDIER, CLERC JEROME, BRECHOT CHRISTIAN, FAIVRE JAMILA. Internal radiotherapy of liver cancer with rat Hepatocarcinoma-Intestine-Pancreas gene as a liver tumor-specific promoter. Hum Gene Ther 2008. [DOI: 10.1089/hgt.2007.153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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25
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Gironella M, Folch-Puy E, LeGoffic A, Garcia S, Christa L, Smith A, Tebar L, Hunt SP, Bayne R, Smith AJH, Dagorn JC, Closa D, Iovanna JL. Experimental acute pancreatitis in PAP/HIP knock-out mice. Gut 2007; 56:1091-7. [PMID: 17409121 PMCID: PMC1955488 DOI: 10.1136/gut.2006.116087] [Citation(s) in RCA: 65] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
BACKGROUND AND AIMS PAP/HIP was first reported as an additional pancreatic secretory protein expressed during the acute phase of pancreatitis. It was shown in vitro to be anti-apoptotic and anti-inflammatory. This study aims to look at whether PAP/HIP plays the same role in vivo. METHODS A model of caerulein-induced pancreatitis was used to compare the outcome of pancreatitis in PAP/HIP(-/-) and wild-type mice. RESULTS PAP/HIP(-/-) mice showed the normal phenotype at birth and normal postnatal development. Caerulein-induced pancreatic necrosis was, however, less severe in PAP/HIP(-/-) mice than in wild-type mice, as judged by lower amylasemia and lipasemia levels and smaller areas of necrosis. On the contrary, pancreas from PAP/HIP(-/-) mice was more sensitive to apoptosis, in agreement with the anti-apoptotic effect of PAP/HIP in vitro. Surprisingly, pancreatic inflammation was more extensive in PAP/HIP(-/-) mice, as judged from histological parameters, increased myeloperoxidase activity and increased pro-inflammatory cytokine expression. This result, in apparent contradiction with the limited necrosis observed in these mice, is, however, in agreement with the anti-inflammatory function previously reported in vitro for PAP/HIP. This is supported by the observation that activation of the STAT3/SOCS3 pathway was strongly decreased in the pancreas of PAP/HIP(-/-) mice and by the reversion of the apoptotic and inflammatory phenotypes upon administration of recombinant PAP/HIP to PAP/HIP(-/-) mice. CONCLUSION The anti-apoptotic and anti-inflammatory functions described in vitro for PAP/HIP have physiological relevance in the pancreas in vivo during caerulein-induced pancreatitis.
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Lieu HT, Simon MT, Nguyen-Khoa T, Kebede M, Cortes A, Tebar L, Smith AJH, Bayne R, Hunt SP, Bréchot C, Christa L. Reg2 inactivation increases sensitivity to Fas hepatotoxicity and delays liver regeneration post-hepatectomy in mice. Hepatology 2006; 44:1452-64. [PMID: 17133485 DOI: 10.1002/hep.21434] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Reg2/RegIIIbeta is the murine homologue of the human secreted HIP/PAP C-type lectin. HIP/PAP transgenic mice were protected against acetaminophen-induced acute liver failure and were stimulated to regenerate post-hepatectomy. To assess the role of Reg2, we used Reg2-/- mice in a model of fulminant hepatitis induced by Fas and in the post-hepatectomy regeneration. Within 4 hours of J0-2 treatment (0.5 microg/g), only 50% of the Reg2-/- mice were alive but with an increased sensitivity to Fas-induced oxidative stress and a decreased level of Bcl-xL. In contrast, HIP/PAP transgenic mice were resistant to Fas, with HIP/PAP serving as a sulfhydryl buffer to slow down decreases in glutathione and Bcl-xL. In Reg2-/- mice, liver regeneration was markedly impaired, with 29% mortality and delay of the S-phase and the activation of ERK1/2 and AKT. Activation of STAT3 began on time at 3 hours but persisted strongly up to 72 hours despite significant accumulation of SOCS3. Thus, Reg2 deficiency induced exaggerated IL-6/STAT-3 activation and mito-inhibition. Because the Reg2 gene was activated between 6 and 24 hours after hepatectomy in wild-type mice, Reg2 could mediate the TNF-alpha/IL-6 priming signaling by exerting a negative feed-back on STAT3/IL-6 activation to allow the hepatocytes to progress through the cell cycle. In conclusion, Reg2 deficiency enhanced liver sensitivity to Fas-induced oxidative stress and delayed liver regeneration with persistent TNF-alpha/IL6/STAT3 signaling. In contrast, overexpression of human HIP/PAP promoted liver resistance to Fas and accelerated liver regeneration with early activation/deactivation of STAT3. Reg2/HIP/PAP is therefore a critical mitogenic and antiapoptotic factor for the liver.
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Affiliation(s)
- Hanh-Tu Lieu
- Institut National de la Santé et de la Recherche Médicale, U785, Paris, France
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27
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Folch-Puy E, Granell S, Dagorn JC, Iovanna JL, Closa D. Pancreatitis-associated protein I suppresses NF-kappa B activation through a JAK/STAT-mediated mechanism in epithelial cells. THE JOURNAL OF IMMUNOLOGY 2006; 176:3774-9. [PMID: 16517747 DOI: 10.4049/jimmunol.176.6.3774] [Citation(s) in RCA: 61] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Pancreatitis-associated protein I (PAP I), also known as HIP, p23, or Reg2 protein, has recently been implicated in the endogenous regulation of inflammation. Although it was initially characterized as a protein that is overexpressed in acute pancreatitis, PAP I has also been associated with a number of inflammatory diseases, such as Crohn's disease. Knowing that PAP I and IL-10 responses share several features, we have used a pancreatic acinar cell line (AR42J) to assess the extent to which their expression is reciprocally regulated, and whether the JAK/STAT and NF-kappaB signaling pathways are involved in the suppression of inflammation mediated by PAP I. We observed that PAP I is induced in epithelial cells by IL-10 and by PAP I itself. In contrast, we found phosphorylation and nuclear translocation of STAT3 and induction of suppressor of cytokine signaling 3 in response to PAP I exposure. Finally, a JAK-specific inhibitor, tyrphostin AG490, markedly prevented PAP I-induced NF-kappaB inhibition, pointing to a cross-talk between JAK/STAT3 and NF-kappaB signaling pathways. Together, these findings indicate that PAP I inhibits the inflammatory response by blocking NF-kappaB activation through a STAT3-dependent mechanism. Important functional similarities to the anti-inflammatory cytokine IL-10 suggest that PAP I could play a role similar to that of IL-10 in epithelial cells.
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MESH Headings
- Active Transport, Cell Nucleus
- Animals
- Antigens, Neoplasm/genetics
- Antigens, Neoplasm/metabolism
- Antigens, Neoplasm/pharmacology
- Biomarkers, Tumor/genetics
- Biomarkers, Tumor/metabolism
- Biomarkers, Tumor/pharmacology
- Cell Line
- Epithelial Cells/metabolism
- Gene Expression Regulation
- Interleukin-10/genetics
- Interleukin-10/metabolism
- Lectins, C-Type/genetics
- Lectins, C-Type/metabolism
- NF-kappa B/antagonists & inhibitors
- NF-kappa B/metabolism
- Pancreatitis-Associated Proteins
- Phosphotyrosine/metabolism
- Protein Biosynthesis
- Protein Kinase Inhibitors/pharmacology
- Protein-Tyrosine Kinases/antagonists & inhibitors
- Protein-Tyrosine Kinases/metabolism
- RNA, Messenger/genetics
- Rats
- STAT3 Transcription Factor/metabolism
- Signal Transduction/drug effects
- Tumor Necrosis Factor-alpha/genetics
- Tumor Necrosis Factor-alpha/pharmacology
- Tyrphostins/pharmacology
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Affiliation(s)
- Emma Folch-Puy
- Department of Experimental Pathology, Institut d'Investigacions Biomèdiques de Barcelona-Consejo Superior de Investigaciones Cientificas, c/Rosselló 161 7o, 08036 Barcelona, Spain
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28
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Cavard C, Terris B, Grimber G, Christa L, Audard V, Radenen-Bussiere B, Simon MT, Renard CA, Buendia MA, Perret C. Overexpression of regenerating islet-derived 1 alpha and 3 alpha genes in human primary liver tumors with β-catenin mutations. Oncogene 2005; 25:599-608. [PMID: 16314847 DOI: 10.1038/sj.onc.1208860] [Citation(s) in RCA: 75] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
The Wnt/beta-catenin signaling pathway is activated in many human hepatocellular carcinomas (HCC). We tried to identify the genes involved in carcinogenesis and progression of HCC with beta-catenin mutations. We used PCR-based subtractive hybridization to compare gene expression between malignant and benign components of a human HCC occurring in pre-existing adenoma activated for beta-catenin. Two of the genes identified belong to the Regenerating gene (REG) family. They encode the Regenerating islet-derived 3 alpha (REG3A/HIP/PAP/REG-III) and 1 alpha (REG1A) proteins, both involved in liver and pancreatic regeneration and proliferation. Using siRNA directed against beta-catenin, we demonstrated that REG3A is a target of beta-catenin signaling in Huh7 hepatoma cells. The upregulation of REG3A and REG1A expression is significantly correlated to the beta-catenin status in 42 HCC and 28 hepatoblastomas characterized for their beta-catenin status. Thus, we report strong evidence that both genes are downstream targets of the Wnt pathway during liver tumorigenesis.
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Affiliation(s)
- C Cavard
- Département GDPM, INSERM U-567, CNRS UMR 8104, Institut Cochin, Université Paris 5, France.
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29
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Lieu HT, Batteux F, Simon MT, Cortes A, Nicco C, Zavala F, Pauloin A, Tralhao JG, Soubrane O, Weill B, Bréchot C, Christa L. HIP/PAP accelerates liver regeneration and protects against acetaminophen injury in mice. Hepatology 2005; 42:618-26. [PMID: 16116631 DOI: 10.1002/hep.20845] [Citation(s) in RCA: 56] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Human hepatocarcinoma-intestine-pancreas/pancreatic-associated protein HIP/PAP is a secreted C-type lectin belonging to group VII, according to Drickamer's classification. HIP/PAP is overexpressed in liver carcinoma; however, its functional role remains unclear. In this study, we demonstrate that HIP/PAP is a paracrine hepatic growth factor promoting both proliferation and viability of liver cells in vivo. First, a low number of implanted hepatocytes deriving from HIP/PAP-transgenic mice (<1:1,000) was sufficient to stimulate overall recipient severe combined immunodeficiency liver regeneration after partial hepatectomy. After a single injection of HIP/PAP protein, the percentages of bromodeoxyuridine-positive nuclei and mitosis were statistically higher than after saline injection, indicating that HIP/PAP acts as a paracrine mitogenic growth factor for the liver. Comparison of the early events posthepatectomy in control and transgenic mice indicated that HIP/PAP accelerates the accumulation/degradation of nuclear phospho-signal transducer activator transcription factor 3 and tumor necrosis factor alpha level, thus reflecting that HIP/PAP accelerates liver regeneration. Second, we showed that 80% of the HIP/PAP-transgenic mice versus 25% of the control mice were protected against lethal acetaminophen-induced fulminate hepatitis. A single injection of recombinant HIP/PAP induced a similar cytoprotective effect, demonstrating the antiapoptotic effect of HIP/PAP. Comparison of Cu/Zn superoxide dismutase activity and glutathione reductase-like effects in control and transgenic liver mice indicated that HIP/PAP exerts an antioxidant activity and prevents reactive oxygen species-induced mitochondrial damage by acetaminophen overdose. In conclusion, the present data offer new insights into the biological functions of C-type lectins. In addition, HIP/PAP is a promising candidate for the prevention and treatment of liver failure.
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MESH Headings
- Acetaminophen/antagonists & inhibitors
- Acetaminophen/toxicity
- Animals
- Antigens, Neoplasm/genetics
- Antigens, Neoplasm/pharmacology
- Antigens, Neoplasm/therapeutic use
- Biomarkers, Tumor/genetics
- Biomarkers, Tumor/pharmacology
- Biomarkers, Tumor/therapeutic use
- Humans
- Lectins, C-Type/genetics
- Lectins, C-Type/therapeutic use
- Liver/cytology
- Liver/drug effects
- Liver/physiology
- Liver Regeneration/drug effects
- Liver Regeneration/physiology
- Mice
- Mice, Transgenic
- Mitochondria, Liver/drug effects
- Mitochondria, Liver/pathology
- Oxidoreductases/metabolism
- Pancreatitis-Associated Proteins
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Affiliation(s)
- Hanh-Tu Lieu
- Institut National de la Santé et de la Recherche Médicale U-370; Faculté de Médecine, Université Paris 5; Hôpital Necker, Institut Pasteur de Paris, Paris, France
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30
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Chen CY, Lin XZ, Wu HC, Shiesh SC. The value of biliary amylase and Hepatocarcinoma-Intestine-Pancreas/Pancreatitis-associated Protein I (HIP/PAP-I) in diagnosing biliary malignancies. Clin Biochem 2005; 38:520-5. [PMID: 15885230 DOI: 10.1016/j.clinbiochem.2005.01.012] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2004] [Revised: 01/19/2005] [Accepted: 01/21/2005] [Indexed: 12/11/2022]
Abstract
BACKGROUND/OBJECTIVES Elevated concentrations of Hepatocarcinoma-Intestine-Pancreas/Pancreatitis-associated Protein I (HIP/PAP-I) in pancreatic juice have been reported in patients with pancreatic adenocarcinoma and have been considered as a promising tumor marker. This study was conducted to investigate whether biliary HIP/PAP-I can be used in the differential diagnosis of the cause of biliary obstruction. METHODS Bile was obtained from patients with bile duct obstruction on the day of biliary drainage. The etiology of biliary obstruction included gallstones (n = 131), pancreatic cancer (n = 32), cholangiocarcinoma (n = 47), papilla Vater cancer (n = 13), hepatocellular carcinoma (n = 4) and metastatic cancer (n = 16). In addition to HIP/PAP-I, the samples were analyzed for amylase to check for the presence of pancreaticobiliary reflux. RESULTS The biliary concentration of HIP/PAP-I was not statistically different between patients with gallstones (median, 9.70 ng/mL; interquartile range [IQR] 1.80-45.75) and cancers (median, 12.70 ng/mL; IQR, 3.85-36.75), P > 0.05. However, the amylase activity in the bile was markedly elevated in patients with gallstones (median, 228 U/L; IQR, 40-1965), compared to those with cancer (median, 32 U/L; IQR; 30-176), P < 0.001. The area under the ROC curve of amylase was 0.751 (95% CI: 0.69 to 0.81). At a cut-off value of 46 U/L, the biliary amylase distinguished patients with malignant obstruction from those with benign obstruction with a sensitivity of 66% and a specificity of 74%. CONCLUSIONS Our data suggest that the biliary HIP/PAP-I measurement is not useful for differentiating causes of biliary obstruction. The divergent extent and duration of biliary obstruction caused by neoplasm and gallstones may contribute to the significant difference in the amylase activity in bile. Thus, amylase in bile represents a candidate marker in the differential diagnosis of the cause of biliary obstruction.
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Affiliation(s)
- Chiung-Yu Chen
- Department of Internal Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan
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31
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Yuan RH, Jeng YM, Chen HL, Hsieh FJ, Yang CY, Lee PH, Hsu HC. Opposite roles of human pancreatitis-associated protein and REG1A expression in hepatocellular carcinoma: association of pancreatitis-associated protein expression with low-stage hepatocellular carcinoma, beta-catenin mutation, and favorable prognosis. Clin Cancer Res 2005; 11:2568-75. [PMID: 15814635 DOI: 10.1158/1078-0432.ccr-04-2039] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
PURPOSE Pancreatitis-associated protein (PAP) and regenerating protein 1 alpha (Reg1A) are up-regulated during the pancreas regeneration. This study is to investigate the clinicopathologic denotation of their expression in hepatocellular carcinoma (HCC). EXPERIMENTAL DESIGN PAP and REG1A mRNA levels were measured in 265 surgically removed unifocal primary HCCs using reverse transcription-PCR. RESULTS PAP and REG1A mRNAs were detected in 97 (36.6%) and 55 (20.8%) HCCs, respectively, including 46 with coexpression but in none of the 219 nontumorous livers. HCCs with PAP expression correlated with low-stage tumors without evidence of vascular invasion (P = 0.013) but the REG1A expression did not. By a combination analysis, HCCs with PAP expression alone showed the lowest frequency of p53 mutation (P < 0.036), the highest rates of grade 1 and low-stage tumors (P < 0.007 and P < 0.001, respectively), less frequent early tumor recurrence (P = 0.051), and hence a better 5-year survival (P = 0.044) than groups expressing PAP and REG1A, REG1A alone, and neither PAP or REG1A. Besides, PAP expressing HCCs had significantly frequent beta-catenin mutation, regardless of REG1A expression, P < 0.00001. In the subset of HCCs that has no mutations of p53 and beta-catenin but showed PAP expression, coexpression of REG1A and PAP was associated with more frequent vascular invasion than PAP expression alone (P < 0.005). CONCLUSIONS These data suggest that PAP expression designate a subset of low-grade, low-stage HCC with frequent beta-catenin mutation and hence more favorable prognosis, whereas further genetic or epigenetic alterations, such as p53 mutation and REG1A expression, lead to more advanced HCCs.
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Affiliation(s)
- Ray-Hwang Yuan
- Department of Surgery, Hepatitis Research Center, National Taiwan University Hospital, Taipei, Taiwan
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32
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Grønborg M, Bunkenborg J, Kristiansen TZ, Jensen ON, Yeo CJ, Hruban RH, Maitra A, Goggins MG, Pandey A. Comprehensive proteomic analysis of human pancreatic juice. J Proteome Res 2005; 3:1042-55. [PMID: 15473694 DOI: 10.1021/pr0499085] [Citation(s) in RCA: 173] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Proteomic technologies provide an excellent means for analysis of body fluids for cataloging protein constituents and identifying biomarkers for early detection of cancers. The biomarkers currently available for pancreatic cancer, such as CA19-9, lack adequate sensitivity and specificity contributing to late diagnosis of this deadly disease. In this study, we carried out a comprehensive characterization of the "pancreatic juice proteome" in patients with pancreatic adenocarcinoma. Pancreatic juice was first fractionated by 1-dimensional gel electrophoresis and subsequently analyzed by liquid chromatography tandem mass spectrometry (LC-MS/MS). A total of 170 unique proteins were identified including known pancreatic cancer tumor markers (e.g., CEA, MUC1) and proteins overexpressed in pancreatic cancers (e.g., hepatocarcinoma-intestine-pancreas/pancreatitis-associated protein (HIP/PAP) and lipocalin 2). In addition, we identified a number of proteins that have not been previously described in pancreatic juice (e.g., tumor rejection antigen (pg96) and azurocidin). Interestingly, a novel protein that is 85% identical to HIP/PAP was identified, which we have designated as PAP-2. The proteins identified in this study could be directly assessed for their potential as biomarkers for pancreatic cancer by quantitative proteomics methods or immunoassays.
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MESH Headings
- Agglutinins/analysis
- Agglutinins/genetics
- Agglutinins/metabolism
- Amino Acid Sequence
- Antigens, Neoplasm/analysis
- Antigens, Neoplasm/genetics
- Antigens, Neoplasm/metabolism
- Antimicrobial Cationic Peptides
- Biomarkers, Tumor/analysis
- Biomarkers, Tumor/genetics
- Biomarkers, Tumor/metabolism
- Blood Proteins/analysis
- Blood Proteins/metabolism
- Calcium-Binding Proteins/genetics
- Carrier Proteins/analysis
- Carrier Proteins/genetics
- Carrier Proteins/metabolism
- Cell Adhesion Molecules/analysis
- Cell Adhesion Molecules/genetics
- Cell Adhesion Molecules/metabolism
- Chromatography, Liquid
- DNA-Binding Proteins
- Electrophoresis, Polyacrylamide Gel
- Gene Expression/genetics
- Glycoproteins/genetics
- Humans
- Lectins, C-Type/analysis
- Lectins, C-Type/genetics
- Lectins, C-Type/metabolism
- Lithostathine
- Mass Spectrometry
- Membrane Proteins/analysis
- Membrane Proteins/genetics
- Membrane Proteins/metabolism
- Molecular Sequence Data
- Pancreatic Juice/chemistry
- Pancreatic Juice/metabolism
- Pancreatic Neoplasms/metabolism
- Pancreatitis-Associated Proteins
- Peptide Fragments/analysis
- Phylogeny
- Proteome/analysis
- Proteome/classification
- Proteome/genetics
- RNA, Messenger/genetics
- RNA, Messenger/metabolism
- Receptors, Cell Surface/analysis
- Receptors, Cell Surface/genetics
- Receptors, Cell Surface/metabolism
- Sequence Alignment
- Sequence Homology, Amino Acid
- Trypsin/metabolism
- Tumor Suppressor Proteins
- alpha-Defensins/analysis
- alpha-Defensins/genetics
- alpha-Defensins/metabolism
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Affiliation(s)
- Mads Grønborg
- McKusick-Nathans Institute of Genetic Medicine and Department of Biological Chemistry, Johns Hopkins University, Baltimore, Maryland 21205, USA
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Iovanna JL, Dagorn JC. The multifunctional family of secreted proteins containing a C-type lectin-like domain linked to a short N-terminal peptide. Biochim Biophys Acta Gen Subj 2005; 1723:8-18. [PMID: 15715980 DOI: 10.1016/j.bbagen.2005.01.002] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2004] [Revised: 12/27/2004] [Accepted: 01/05/2005] [Indexed: 11/18/2022]
Abstract
PSP/Lithostathine/PTP/regI, PAP/p23/HIP, reg1L, regIV and "similar to PAP" are the members of a multifunctional family of secreted proteins containing a C-type lectin-like domain linked to a short N-terminal peptide. The expression of this group of proteins is controlled by complex mechanisms, some members being constitutively expressed in certain tissues while, in others, they require activation by several factors. These members have several apparently unrelated biological effects, depending on the member studied and the target cell. These proteins may act as mitogenic, antiapoptotic or anti-inflammatory factors, can regulate cellular adhesion, promote bacterial aggregation, inhibit CaCO3 crystal growth or increase resistance to antitumoral agents. The presence of specific receptors for these proteins is suggested because biological effects were observed after the addition of purified protein to culture media or after systemic administration to animals, whereas other biological effects could be explained by their biochemical capacity to form homo or heteromers or to form insoluble fibrils at physiological pH.
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Affiliation(s)
- Juan L Iovanna
- INSERM U.624, Stress Cellulaire, 163 Avenue de Luminy, Case 915, Parc Scientifique et Technologique de Luminy, 13288 Marseille Cedex 9, France.
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Demaugre F, Philippe Y, Sar S, Pileire B, Christa L, Lasserre C, Brechot C. HIP/PAP, a C-type lectin overexpressed in hepatocellular carcinoma, binds the RII alpha regulatory subunit of cAMP-dependent protein kinase and alters the cAMP-dependent protein kinase signalling. ACTA ACUST UNITED AC 2004; 271:3812-20. [PMID: 15373827 DOI: 10.1111/j.1432-1033.2004.04302.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
HIP/PAP is a C-type lectin overexpressed in hepatocellular carcinoma (HCC). Pleiotropic biological activities have been ascribed to this protein, but little is known about the function of HIP/PAP in the liver. In this study, therefore, we searched for proteins interacting with HIP/PAP by screening a HCC cDNA expression library. We have identified the RII alpha regulatory subunit of cAMP-dependent protein kinase (PKA) as a partner of HIP/PAP. HIP/PAP and RII alpha were coimmunoprecipitated in HIP/PAP expressing cells. The biological relevance of the interaction between these proteins was established by demonstrating, using fractionation methods, that they are located in a same subcellular compartment. Indeed, though HIP/PAP is a protein secreted via the Golgi apparatus we showed that a fraction of HIP/PAP escaped the secretory apparatus and was recovered in the cytosol. Basal PKA activity was increased in HIP/PAP expressing cells, suggesting that HIP/PAP may alter PKA signalling. Indeed, we showed, using a thymidine kinase-luciferase reporter plasmid in which a cAMP responsive element was inserted upstream of the thymidine kinase promoter, that luciferase activity was enhanced in HIP/PAP expressing cells. Thus our findings suggest a novel mechanism for the biological activity of the HIP/PAP lectin.
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MESH Headings
- Antigens, Neoplasm/genetics
- Antigens, Neoplasm/metabolism
- Biomarkers, Tumor/genetics
- Biomarkers, Tumor/metabolism
- Carcinoma, Hepatocellular/genetics
- Carcinoma, Hepatocellular/metabolism
- Carcinoma, Hepatocellular/pathology
- Cyclic AMP/metabolism
- Cyclic AMP-Dependent Protein Kinase RIIbeta Subunit
- Cyclic AMP-Dependent Protein Kinases/metabolism
- Gene Library
- Golgi Apparatus
- Humans
- Immunoprecipitation
- Lectins, C-Type/genetics
- Lectins, C-Type/metabolism
- Liver Neoplasms/genetics
- Liver Neoplasms/metabolism
- Liver Neoplasms/pathology
- Luciferases/metabolism
- Pancreatitis-Associated Proteins
- Phosphorylation
- Signal Transduction
- Subcellular Fractions
- Thymidine Kinase/metabolism
- Tumor Cells, Cultured
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Affiliation(s)
- France Demaugre
- INSERM U370 CHU Necker Enfants Malades, 75015 Paris, France.
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35
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Ho MR, Lou YC, Lin WC, Lyu PC, Chen C. (1)H, (13)C, and (15)N resonance assignments and secondary structure of human pancreatitis-associated protein (hPAP). JOURNAL OF BIOMOLECULAR NMR 2004; 30:381-382. [PMID: 15754062 DOI: 10.1007/s10858-004-3499-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2004] [Accepted: 09/02/2004] [Indexed: 05/24/2023]
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Simon MT, Pauloin A, Normand G, Lieu HT, Mouly H, Pivert G, Carnot F, Tralhao JG, Brechot C, Christa L. HIP/PAP stimulates liver regeneration after partial hepatectomy and combines mitogenic and anti-apoptotic functions through the PKA signaling pathway. FASEB J 2003; 17:1441-50. [PMID: 12890698 DOI: 10.1096/fj.02-1013com] [Citation(s) in RCA: 67] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The HIP/PAP (=human Reg-2) C-type lectin encoding gene is activated in primary liver cancers. In normal liver, the protein is undetectable in normal mature hepatocytes and found only in some ductular cells, representing potential hepatic progenitor cells. The aim of this study was to examine the consequences of human HIP/PAP expression in the liver of transgenic mice. We demonstrated that HIP/PAP stimulated liver regeneration after partial hepatectomy. To further investigate the enhanced liver regeneration observed in vivo, primary cultures of hepatocytes were used to evaluate the mitogenic and anti-apoptotic properties of HIP/PAP. HIP/PAP increased hepatocyte DNA synthesis and protected hepatocytes against TNF-alpha plus actinomycin-D-induced apoptosis. HIP/PAP anti-apoptotic effects against TNF-alpha were clearly demonstrated when protein kinase A activity was specifically inhibited by KT5720, and HIP/PAP stimulated PKA-dependent phosphorylation of the proapoptotic Bad protein at Ser-112, suggesting that HIP/PAP may compete with cAMP to stimulate PKA activity. Overall, our results led us to propose a new role for a C-type lectin, HIP/PAP, as a hepatic cytokine that combines mitogenic and anti-apoptotic functions regarding hepatocytes, and consequently acts as a growth factor in vivo to enhance liver regeneration.
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Affiliation(s)
- Marie-Therese Simon
- Institut National de la Santé et de la Recherche Médicale U-370, Necker-Pasteur Institutes, Universite Paris V, 75742 Paris Cedex 15, France
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Motoo Y, Watanabe H, Yamaguchi Y, Xie MJ, Mouri H, Ohtsubo K, Okai T, Wakabayashi T, Sawabu N. Pancreatitis-associated protein levels in pancreatic juice from patients with pancreatic diseases. Pancreatology 2002; 1:43-7. [PMID: 12120267 DOI: 10.1159/000055791] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
BACKGROUND Pancreatitis-associated protein (PAP), the acute-phase protein of the pancreas, is overexpressed in acute pancreatitis. Serum PAP levels were reported to be useful as an indicator of the severity, prognosis and healing of acute pancreatitis. Although PAP was originally identified in pancreatic juice, there has been no clinical report on PAP levels in pancreatic juice. This study was conducted to determine levels of PAP in pancreatic juice (PJ-PAP) in various human pancreatic diseases. METHODS PAP levels in endoscopically aspirated PJ were measured by enzyme-linked immunosorbent assay in 86 patients with pancreatic diseases. RESULTS 55% of 22 patients with pancreatic cancer (PC) and 25% of 49 patients with chronic pancreatitis (CP) were positive (> 350 ng/ml) for PJ-PAP. PJ-PAP levels were significantly higher in PC than in CP, in which PJ-PAP was also significantly higher than in 15 control subjects. There was no significant correlation between PJ-PAP and serum PAP, and combination assay of serum PAP and/or PJ-PAP detected 80% of PC cases and 44% of CP cases. CONCLUSIONS We have demonstrated that human PAP could be detected in pancreatic juice from patients with pancreatic diseases. Determination of PAP in pancreatic juice might be helpful for early detection of pancreatic injury.
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Affiliation(s)
- Y Motoo
- Department of Internal Medicine and Medical Oncology, Cancer Research Institute, Kanazawa University, 4-86 Yoneizumi, Kanazawa 921-8044, Japan.
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Cervello M, Giannitrapani L, La Rosa M, Notarbartolo M, D'Alessandro N, Virruso L, Iovanna JL, Montalto G. Expression of HIP/PAP mRNA in human hepatoma cell lines. Ann N Y Acad Sci 2002; 963:53-8. [PMID: 12095928 DOI: 10.1111/j.1749-6632.2002.tb04094.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
The present study attempts to shed more light on the role of hepatocarcinoma-intestine-pancreas/pancreatic associated protein (HIP/PAP) in hepatoma cells. We initially examined, by reverse transcription-polymerase chain reaction (RT-PCR), the HIP/PAP transcripts present in human hepatoma cell lines of different origins and with different grades of differentiation and genetic profiles. We also used DNA sequencing analysis to investigate the structure of the HIP/PAP gene. Further investigation is necessary to define the role of HIP/PAP during the development of human hepatocellular carcinoma and to ascertain whether the use of different transcripts is helpful in regulating HIP/PAP expression in transformed liver cells.
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Affiliation(s)
- M Cervello
- Istituto di Biologia dello Sviluppo, C.N.R., Palermo, Italy.
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Christa L, Pauloin A, Simon MT, Stinnakre MG, Fontaine ML, Delpal S, Ollivier-Bousquet M, Bréchot C, Devinoy E. High expression of the human hepatocarcinoma-intestine-pancreas/pancreatic-associated protein (HIP/PAP) gene in the mammary gland of lactating transgenic mice. Secretion into the milk and purification of the HIP/PAP lectin. EUROPEAN JOURNAL OF BIOCHEMISTRY 2000; 267:1665-71. [PMID: 10712597 DOI: 10.1046/j.1432-1327.2000.01159.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
The human hepatocarcinoma-intestine-pancreas/pancreatic-associated protein (HIP/PAP) gene was previously identified because of its increased expression in primary liver cancers and during the acute phase of pancreatitis. In normal tissues, HIP/PAP is expressed both in endocrine and exocrine cells of the intestine and pancreas. HIP/PAP is a lactose binding C-type lectin which acts as an adhesion molecule for rat hepatocytes. The aim of the work was to study the HIP/PAP secretory pathway and to produce high levels of HIP/PAP in the milk of lactating transgenic mice. In view of its lactose C-type lectin properties, we have studied the consequences of the expression of HIP/PAP on mammary epithelial cells. In homozygous mice, production reached 11.2 mg.mL-1 of milk. High levels of soluble and pure HIP/PAP (18.6 mg) were purified from 29 mL of milk. The purified protein was sequenced and the N-terminal amino acid of the mature HIP/PAP was identified as Glu27, thus localizing the site of cleavage of the signal peptide. The HIP/PAP transgene was only expressed in the mammary gland of lactating transgenic mice. HIP/PAP was detected by immunofluorescence in the whole gland, but labelling was heterogeneous between alveolar clusters, with strongly positive sparse cells. Using immuno electron microscopy, HIP/PAP was observed in all the compartments of the secretory pathway within the mammary epithelial cells. We provide evidence that HIP/PAP is secreted through the Golgi pathway. However, the number of distended Golgi saccules was increased when compared to that found in wild-type mouse mammary cells. These modifications could be related to HIP/PAP C-type lectin specific properties.
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MESH Headings
- Acute-Phase Proteins/biosynthesis
- Acute-Phase Proteins/genetics
- Acute-Phase Proteins/isolation & purification
- Acute-Phase Proteins/metabolism
- Animals
- Antigens, Neoplasm
- Biomarkers, Tumor
- Caseins/biosynthesis
- Female
- Gene Expression Regulation
- Humans
- Immunohistochemistry
- Lactation
- Lectins, C-Type
- Mammary Glands, Animal/metabolism
- Mammary Glands, Animal/ultrastructure
- Mice
- Mice, Inbred C57BL
- Mice, Inbred CBA
- Mice, Transgenic
- Microscopy, Fluorescence
- Microscopy, Immunoelectron
- Milk/chemistry
- Milk Proteins/genetics
- Milk Proteins/isolation & purification
- Pancreatitis-Associated Proteins
- Promoter Regions, Genetic
- Protein Sorting Signals/metabolism
- Proteins
- Rabbits
- Recombinant Fusion Proteins/biosynthesis
- Recombinant Fusion Proteins/isolation & purification
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Affiliation(s)
- L Christa
- Institut National de la Santé et de la Recherche Médicale U-370 and Liver Unit, Centre Hospitalier Universitaire Necker, Paris, France.
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