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García-Escudero V, Ruiz-Gabarre D, Gargini R, Pérez M, García E, Cuadros R, Hernández IH, Cabrera JR, García-Escudero R, Lucas JJ, Hernández F, Ávila J. A new non-aggregative splicing isoform of human Tau is decreased in Alzheimer's disease. Acta Neuropathol 2021; 142:159-177. [PMID: 33934221 PMCID: PMC8217066 DOI: 10.1007/s00401-021-02317-z] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Revised: 04/21/2021] [Accepted: 04/22/2021] [Indexed: 12/11/2022]
Abstract
Tauopathies, including Alzheimer's disease (AD) and frontotemporal lobar degeneration with Tau pathology (FTLD-tau), are a group of neurodegenerative disorders characterized by Tau hyperphosphorylation. Post-translational modifications of Tau such as phosphorylation and truncation have been demonstrated to be an essential step in the molecular pathogenesis of these tauopathies. In this work, we demonstrate the existence of a new, human-specific truncated form of Tau generated by intron 12 retention in human neuroblastoma cells and, to a higher extent, in human RNA brain samples, using qPCR and further confirming the results on a larger database of human RNA-seq samples. Diminished protein levels of this new Tau isoform are found by Westernblotting in Alzheimer's patients' brains (Braak I n = 3; Braak II n = 6, Braak III n = 3, Braak IV n = 1, and Braak V n = 10, Braak VI n = 8) with respect to non-demented control subjects (n = 9), suggesting that the lack of this truncated isoform may play an important role in the pathology. This new Tau isoform exhibits similar post-transcriptional modifications by phosphorylation and affinity for microtubule binding, but more interestingly, is less prone to aggregate than other Tau isoforms. Finally, we present evidence suggesting this new Tau isoform could be linked to the inhibition of GSK3β, which would mediate intron 12 retention by modulating the serine/arginine rich splicing factor 2 (SRSF2). Our results show the existence of an important new isoform of Tau and suggest that further research on this less aggregation-prone Tau may help to develop future therapies for Alzheimer's disease and other tauopathies.
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Affiliation(s)
- Vega García-Escudero
- Departamento de Anatomía, Histología y Neurociencia, School of Medicine, Autonoma de Madrid University (UAM), Arzobispo Morcillo, 4, 28029, Madrid, Spain
- Graduate Program in Neuroscience, Autonoma de Madrid University (UAM), Arzobispo Morcillo, 4, 28029, Madrid, Spain
- Centro de Biología Molecular "Severo Ochoa" (CSIC-UAM). Nicolás Cabrera, 1. Cantoblanco, 28049, Madrid, Spain
| | - Daniel Ruiz-Gabarre
- Departamento de Anatomía, Histología y Neurociencia, School of Medicine, Autonoma de Madrid University (UAM), Arzobispo Morcillo, 4, 28029, Madrid, Spain
- Graduate Program in Neuroscience, Autonoma de Madrid University (UAM), Arzobispo Morcillo, 4, 28029, Madrid, Spain
- Centro de Biología Molecular "Severo Ochoa" (CSIC-UAM). Nicolás Cabrera, 1. Cantoblanco, 28049, Madrid, Spain
| | - Ricardo Gargini
- Centro de Biología Molecular "Severo Ochoa" (CSIC-UAM). Nicolás Cabrera, 1. Cantoblanco, 28049, Madrid, Spain
- Neurooncology Unit, Instituto de Salud Carlos III-UFIEC, 28220, Madrid, Spain
| | - Mar Pérez
- Departamento de Anatomía, Histología y Neurociencia, School of Medicine, Autonoma de Madrid University (UAM), Arzobispo Morcillo, 4, 28029, Madrid, Spain
- Centro de Biología Molecular "Severo Ochoa" (CSIC-UAM). Nicolás Cabrera, 1. Cantoblanco, 28049, Madrid, Spain
| | - Esther García
- Centro de Biología Molecular "Severo Ochoa" (CSIC-UAM). Nicolás Cabrera, 1. Cantoblanco, 28049, Madrid, Spain
| | - Raquel Cuadros
- Centro de Biología Molecular "Severo Ochoa" (CSIC-UAM). Nicolás Cabrera, 1. Cantoblanco, 28049, Madrid, Spain
| | - Ivó H Hernández
- Centro de Biología Molecular "Severo Ochoa" (CSIC-UAM). Nicolás Cabrera, 1. Cantoblanco, 28049, Madrid, Spain
| | - Jorge R Cabrera
- Unidad de Investigación, Fundación Hospital de Jove, 33290, Gijón, Spain
| | - Ramón García-Escudero
- Molecular Oncology Unit, CIEMAT, Ave Complutense, 40, 28040, Madrid, Spain
- Hospital 12 Octubre Research Institute/CIEMAT, Madrid, Spain
- Centro de Investigación Biomédica en Red de Cancer (CIBERONC), Valderrebollo, 5, 28031, Madrid, Spain
| | - José J Lucas
- Centro de Biología Molecular "Severo Ochoa" (CSIC-UAM). Nicolás Cabrera, 1. Cantoblanco, 28049, Madrid, Spain
- Networking Research Center on Neurodegenerative Diseases (CIBERNED), Instituto de Salud Carlos III, 28031, Madrid, Spain
| | - Félix Hernández
- Centro de Biología Molecular "Severo Ochoa" (CSIC-UAM). Nicolás Cabrera, 1. Cantoblanco, 28049, Madrid, Spain
- Networking Research Center on Neurodegenerative Diseases (CIBERNED), Instituto de Salud Carlos III, 28031, Madrid, Spain
| | - Jesús Ávila
- Centro de Biología Molecular "Severo Ochoa" (CSIC-UAM). Nicolás Cabrera, 1. Cantoblanco, 28049, Madrid, Spain.
- Networking Research Center on Neurodegenerative Diseases (CIBERNED), Instituto de Salud Carlos III, 28031, Madrid, Spain.
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López de Maturana E, Rodríguez JA, Alonso L, Lao O, Molina-Montes E, Martín-Antoniano IA, Gómez-Rubio P, Lawlor R, Carrato A, Hidalgo M, Iglesias M, Molero X, Löhr M, Michalski C, Perea J, O'Rorke M, Barberà VM, Tardón A, Farré A, Muñoz-Bellvís L, Crnogorac-Jurcevic T, Domínguez-Muñoz E, Gress T, Greenhalf W, Sharp L, Arnes L, Cecchini L, Balsells J, Costello E, Ilzarbe L, Kleeff J, Kong B, Márquez M, Mora J, O'Driscoll D, Scarpa A, Ye W, Yu J, García-Closas M, Kogevinas M, Rothman N, Silverman DT, Albanes D, Arslan AA, Beane-Freeman L, Bracci PM, Brennan P, Bueno-de-Mesquita B, Buring J, Canzian F, Du M, Gallinger S, Gaziano JM, Goodman PJ, Gunter M, LeMarchand L, Li D, Neale RE, Peters U, Petersen GM, Risch HA, Sánchez MJ, Shu XO, Thornquist MD, Visvanathan K, Zheng W, Chanock SJ, Easton D, Wolpin BM, Stolzenberg-Solomon RZ, Klein AP, Amundadottir LT, Marti-Renom MA, Real FX, Malats N. A multilayered post-GWAS assessment on genetic susceptibility to pancreatic cancer. Genome Med 2021; 13:15. [PMID: 33517887 PMCID: PMC7849104 DOI: 10.1186/s13073-020-00816-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Accepted: 12/03/2020] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Pancreatic cancer (PC) is a complex disease in which both non-genetic and genetic factors interplay. To date, 40 GWAS hits have been associated with PC risk in individuals of European descent, explaining 4.1% of the phenotypic variance. METHODS We complemented a new conventional PC GWAS (1D) with genome spatial autocorrelation analysis (2D) permitting to prioritize low frequency variants not detected by GWAS. These were further expanded via Hi-C map (3D) interactions to gain additional insight into the inherited basis of PC. In silico functional analysis of public genomic information allowed prioritization of potentially relevant candidate variants. RESULTS We identified several new variants located in genes for which there is experimental evidence of their implication in the biology and function of pancreatic acinar cells. Among them is a novel independent variant in NR5A2 (rs3790840) with a meta-analysis p value = 5.91E-06 in 1D approach and a Local Moran's Index (LMI) = 7.76 in 2D approach. We also identified a multi-hit region in CASC8-a lncRNA associated with pancreatic carcinogenesis-with a lowest p value = 6.91E-05. Importantly, two new PC loci were identified both by 2D and 3D approaches: SIAH3 (LMI = 18.24), CTRB2/BCAR1 (LMI = 6.03), in addition to a chromatin interacting region in XBP1-a major regulator of the ER stress and unfolded protein responses in acinar cells-identified by 3D; all of them with a strong in silico functional support. CONCLUSIONS This multi-step strategy, combined with an in-depth in silico functional analysis, offers a comprehensive approach to advance the study of PC genetic susceptibility and could be applied to other diseases.
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Affiliation(s)
- Evangelina López de Maturana
- Genetic and Molecular Epidemiology Group, Spanish National Cancer Research Center (CNIO), C/Melchor Fernandez Almagro 3, 28029, Madrid, Spain
- CIBERONC, Madrid, Spain
| | - Juan Antonio Rodríguez
- CNAG-CRG, Centre for Genomic Regulation (CRG), Barcelona Institute of Science and Technology (BIST), Barcelona, Spain
| | - Lola Alonso
- Genetic and Molecular Epidemiology Group, Spanish National Cancer Research Center (CNIO), C/Melchor Fernandez Almagro 3, 28029, Madrid, Spain
- CIBERONC, Madrid, Spain
| | - Oscar Lao
- CNAG-CRG, Centre for Genomic Regulation (CRG), Barcelona Institute of Science and Technology (BIST), Barcelona, Spain
| | - Esther Molina-Montes
- Genetic and Molecular Epidemiology Group, Spanish National Cancer Research Center (CNIO), C/Melchor Fernandez Almagro 3, 28029, Madrid, Spain
- CIBERONC, Madrid, Spain
| | - Isabel Adoración Martín-Antoniano
- Genetic and Molecular Epidemiology Group, Spanish National Cancer Research Center (CNIO), C/Melchor Fernandez Almagro 3, 28029, Madrid, Spain
- CIBERONC, Madrid, Spain
| | - Paulina Gómez-Rubio
- Genetic and Molecular Epidemiology Group, Spanish National Cancer Research Center (CNIO), C/Melchor Fernandez Almagro 3, 28029, Madrid, Spain
- CIBERONC, Madrid, Spain
| | - Rita Lawlor
- ARC-Net Centre for Applied Research on Cancer and Department of Pathology and Diagnostics, University and Hospital Trust of Verona, Verona, Italy
| | - Alfredo Carrato
- CIBERONC, Madrid, Spain
- Department of Oncology, Ramón y Cajal University Hospital, IRYCIS, Alcala University, Madrid, Spain
| | - Manuel Hidalgo
- Madrid-Norte-Sanchinarro Hospital, Madrid, Spain
- Weill Cornell Medicine, New York, USA
| | - Mar Iglesias
- CIBERONC, Madrid, Spain
- Hospital del Mar-Parc de Salut Mar, Barcelona, Spain
| | - Xavier Molero
- Hospital Universitari Vall d'Hebron, Vall d'Hebron Research Institute (VHIR), Barcelona, Spain
- Universitat Autònoma de Barcelona and CIBEREHD, Barcelona, Spain
| | - Matthias Löhr
- Gastrocentrum, Karolinska Institutet and University Hospital, Stockholm, Sweden
| | - Christopher Michalski
- Department of Surgery, Technical University of Munich, Munich, Germany
- Department of Visceral, Vascular and Endocrine Surgery, Martin-Luther-University Halle-WittenberHalle (Saale), Halle, Germany
| | - José Perea
- Department of Surgery, Hospital 12 de Octubre, and Department of Surgery and Health Research Institute, Fundación Jiménez Díaz, Madrid, Spain
| | - Michael O'Rorke
- Centre for Public Health, Queen's University Belfast, Belfast, UK
- College of Public Health, The University of Iowa, Iowa City, IA, USA
| | | | - Adonina Tardón
- Department of Medicine, Instituto Universitario de Oncología del Principado de Asturias (IUOPA), Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Oviedo, Spain
- CIBERESP, Madrid, Spain
| | - Antoni Farré
- Department of Gastroenterology and Clinical Biochemistry, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain
| | - Luís Muñoz-Bellvís
- CIBERONC, Madrid, Spain
- Department of Surgery, Hospital Universitario de Salamanca - IBSAL, Universidad de Salamanca, Salamanca, Spain
| | - Tanja Crnogorac-Jurcevic
- Barts Cancer Institute, Centre for Molecular Oncology, Queen Mary University of London, London, UK
| | - Enrique Domínguez-Muñoz
- Department of Gastroenterology, University Clinical Hospital of Santiago de Compostela, Santiago de Compostela, Spain
| | - Thomas Gress
- Department of Gastroenterology, University Hospital of Giessen and Marburg, Marburg, Germany
| | - William Greenhalf
- Department of Molecular and Clinical Cancer Medicine, University of Liverpool, Liverpool, UK
| | - Linda Sharp
- National Cancer Registry Ireland and HRB Clinical Research Facility, University College Cork, Cork, Ireland
- Newcastle University, Institute of Health & Society, Newcastle, UK
| | - Luís Arnes
- Centre for Stem Cell Research and Developmental Biology, University of Copenhagen, Copenhagen, Denmark
- Department of Genetics and Development, Columbia University Medical Center, New York, NY, USA
- Department of Systems Biology, Columbia University Medical Center, New York, NY, USA
| | - Lluís Cecchini
- CIBERONC, Madrid, Spain
- Hospital del Mar-Parc de Salut Mar, Barcelona, Spain
| | - Joaquim Balsells
- Hospital Universitari Vall d'Hebron, Vall d'Hebron Research Institute (VHIR), Barcelona, Spain
- Universitat Autònoma de Barcelona and CIBEREHD, Barcelona, Spain
| | - Eithne Costello
- Department of Molecular and Clinical Cancer Medicine, University of Liverpool, Liverpool, UK
| | - Lucas Ilzarbe
- CIBERONC, Madrid, Spain
- Hospital del Mar-Parc de Salut Mar, Barcelona, Spain
| | - Jörg Kleeff
- Department of Surgery, Technical University of Munich, Munich, Germany
- Department of Visceral, Vascular and Endocrine Surgery, Martin-Luther-University Halle-WittenberHalle (Saale), Halle, Germany
| | - Bo Kong
- Department of Surgery, Technical University of Munich, Munich, Germany
| | - Mirari Márquez
- Genetic and Molecular Epidemiology Group, Spanish National Cancer Research Center (CNIO), C/Melchor Fernandez Almagro 3, 28029, Madrid, Spain
- CIBERONC, Madrid, Spain
| | - Josefina Mora
- Department of Gastroenterology and Clinical Biochemistry, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain
| | - Damian O'Driscoll
- National Cancer Registry Ireland and HRB Clinical Research Facility, University College Cork, Cork, Ireland
| | - Aldo Scarpa
- ARC-Net Centre for Applied Research on Cancer and Department of Pathology and Diagnostics, University and Hospital Trust of Verona, Verona, Italy
| | - Weimin Ye
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stokholm, Sweden
| | - Jingru Yu
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stokholm, Sweden
| | - Montserrat García-Closas
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Manolis Kogevinas
- CIBERESP, Madrid, Spain
- Institut Municipal d'Investigació Mèdica - Hospital del Mar, Centre de Recerca en Epidemiologia Ambiental (CREAL), Barcelona, Spain
| | - Nathaniel Rothman
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Debra T Silverman
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Demetrius Albanes
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Alan A Arslan
- Department of Obstetrics and Gynecology, New York University School of Medicine, New York, NY, USA
- Department of Environmental Medicine, New York University School of Medicine, New York, NY, USA
- Department of Population Health, New York University School of Medicine, New York, NY, USA
| | - Laura Beane-Freeman
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Paige M Bracci
- Department of Epidemiology and Biostatistics, University of California, San Francisco, CA, USA
| | - Paul Brennan
- International Agency for Research on Cancer (IARC), Lyon, France
| | - Bas Bueno-de-Mesquita
- Deparment for Determinants of Chronic Diseases (DCD), National Institute for Public Health and the Environment (RIVM), Bilthoven, The Netherlands
| | - Julie Buring
- Division of Preventive Medicine, Brigham and Women's Hospital, Boston, MA, USA
| | - Federico Canzian
- Genomic Epidemiology Group, German Cancer Research Center (DKFZ, Heidelberg, Germany
| | - Margaret Du
- Department of Epidemiology and Biostatistics, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Steve Gallinger
- Prosserman Centre for Population Health Research, Lunenfeld-Tanenbaum Research Institute, Sinai Health System, Toronto, ON, Canada
| | - J Michael Gaziano
- Departments of Medicine, Brigham and Women's Hospital, VA Boston and Harvard Medical School, Boston, MA, USA
| | - Phyllis J Goodman
- SWOG Statistical Center, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Marc Gunter
- International Agency for Research on Cancer (IARC), Lyon, France
| | - Loic LeMarchand
- Cancer Epidemiology Program, University of Hawaii Cancer Center, Honolulu, HI, USA
| | - Donghui Li
- University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Rachael E Neale
- Population Health Department, QIMR Berghofer Medical Research Institute, Brisbane, Queensland, Australia
| | - Ulrika Peters
- Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Gloria M Petersen
- Department of Health Sciences Research, Mayo Clinic College of Medicine, Rochester, MN, USA
| | - Harvey A Risch
- Department of Chronic Disease Epidemiology, Yale School of Public Health, New Haven, CT, USA
| | - Maria José Sánchez
- Escuela Andaluza de Salud Pública (EASP), Granada, Spain
- Instituto de Investigación Biosanitaria Granada, Granada, Spain
- Centro de Investigación Biomédica en Red de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain
- Universidad de Granada, Granada, Spain
| | - Xiao-Ou Shu
- Division of Epidemiology, Department of Medicine, Vanderbilt Epidemiology Center, Vanderbilt-Ingram Cancer Center, Vanderbilt University School of Medicine, Nashville, TN, USA
| | - Mark D Thornquist
- Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Kala Visvanathan
- Department of Health Sciences Research, Mayo Clinic College of Medicine, Rochester, MN, USA
| | - Wei Zheng
- Division of Epidemiology, Department of Medicine, Vanderbilt Epidemiology Center, Vanderbilt-Ingram Cancer Center, Vanderbilt University School of Medicine, Nashville, TN, USA
| | - Stephen J Chanock
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Douglas Easton
- Centre for Cancer Genetic Epidemiology, Department of Public Health and Primary Care, University of Cambridge, Cambridge, UK
| | - Brian M Wolpin
- Department Medical Oncology, Dana-Farber Cancer Institute, Boston, USA
| | - Rachael Z Stolzenberg-Solomon
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Alison P Klein
- Department of Oncology, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins School of Medicine, Baltimore, MD, USA
| | - Laufey T Amundadottir
- Laboratory of Translational Genomics, Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Marc A Marti-Renom
- National Centre for Genomic Analysis (CNAG), Centre for Genomic Regulation (CRG), Barcelona Institute of Science and Technology (BIST), Universitat Pompeu Fabra (UPF), ICREA, Baldiri Reixac 4, 08028, Barcelona, Spain.
| | - Francisco X Real
- CIBERONC, Madrid, Spain
- Epithelial Carcinogenesis Group, Spanish National Cancer Research Center (CNIO), Madrid, Spain
- Departament de Ciències Experimentals i de la Salut, Universitat Pompeu Fabra, Barcelona, Spain
| | - Núria Malats
- Genetic and Molecular Epidemiology Group, Spanish National Cancer Research Center (CNIO), C/Melchor Fernandez Almagro 3, 28029, Madrid, Spain.
- CIBERONC, Madrid, Spain.
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Rau M, Schmitt J, Berg T, Kremer AE, Stieger B, Spanaus K, Bengsch B, Romero MR, Marin JJ, Keitel V, Klinker H, Tony HP, Müllhaupt B, Geier A. Serum IP-10 levels and increased DPPIV activity are linked to circulating CXCR3+ T cells in cholestatic HCV patients. PLoS One 2018; 13:e0208225. [PMID: 30507970 PMCID: PMC6277069 DOI: 10.1371/journal.pone.0208225] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2018] [Accepted: 11/14/2018] [Indexed: 01/15/2023] Open
Abstract
BACKGROUND & AIMS Serum interferon-gamma-inducible protein-10 (IP-10) is elevated in cholestatic liver diseases and predicts response to antiviral therapy in patients with chronic hepatitis C virus (HCV) infection. Dipeptidylpeptidase 4 (DPPIV) cleaves active IP-10 into an inactive form, which inhibits recruitment of CXCR3+ T cells to the liver. In this study the link between IP-10 levels, DPPIV activity in serum and CXCR3+ T cells is analysed in cholestatic and non-cholestatic liver patients. METHODS In serum DPPIV activity (by enzymatic assay), IP-10 (by ELISA) and bile acids (BA) (by enzymatic assay) were analysed in 229 naive HCV genotype (GT) 1 patients and in 16 patients with cholestatic liver disease. In a prospective follow-up (FU) cohort of 27 HCV GT 1 patients peripheral CD3+CXCR3+, CD4+CXCR3+ and CD8+CXCR3+ cells were measured by FACS. RESULTS In 229 HCV patients serum IP-10 levels correlated positively to DPPIV serum activity. Higher IP-10 levels and DPPIV activity were detected in cholestatic and in cirrhotic HCV patients. Increased IP-10 serum levels were associated with therapeutic non-response to antiviral treatment with pegylated-interferon and ribavirin. In the HCV FU cohort elevated IP-10 serum levels and increased BA were associated with higher frequencies of peripheral CD3+CXCR3+, CD4+CXCR3+ and CD8+CXCR3+ T cells. Positive correlation between serum IP-10 levels and DPPIV activity was likewise validated in patients with cholestatic liver diseases. CONCLUSIONS A strong correlation between elevated serum levels of IP-10 and DPPIV activity was seen in different cholestatic patient groups. Furthermore, in cholestatic HCV patients a functional link to increased numbers of peripheral CXCR3+ immune cells could be observed. The source of DPPIV release in cholestatic patients remains open.
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Affiliation(s)
- Monika Rau
- Division of Hepatology, Department of Medicine II, University Hospital Würzburg, Würzburg, Germany
| | - Johannes Schmitt
- Division of Hepatology, Department of Medicine II, University Hospital Würzburg, Würzburg, Germany
| | - Thomas Berg
- Division of Hepatology, Department of Gastroenterology and Rheumatology, University Hospital Leipzig, Leipzig, Germany
| | - Andreas E. Kremer
- Department of Medicine I, Friedrich Alexander University of Erlangen-Nuremberg, Erlangen, Germany
| | - Bruno Stieger
- Division of Clinical Pharmacology and Toxicology, University Hospital Zurich, Zurich, Switzerland
| | - Katharina Spanaus
- Institute of Clinical Chemistry, University Hospital Zurich, Zurich, Switzerland
| | - Bertram Bengsch
- Department of Medicine II, Gastroenterology, Hepatology, Endocrinology, and Infectious Diseases, University Medical Center Freiburg, Germany
- BIOSS Centre for Biological Signaling Studies, Freiburg, Germany
| | - Marta R. Romero
- Laboratory of Experimental Hepatology and Drug Targeting, CIBERehd, IBSAL, University of Salamanca, Salamanca, Spain
| | - Jose J. Marin
- Laboratory of Experimental Hepatology and Drug Targeting, CIBERehd, IBSAL, University of Salamanca, Salamanca, Spain
| | - Verena Keitel
- Clinic for Gastroenterology, Hepatology and Infectious Diseases, University Hospital Düsseldorf, Medical Faculty at Heinrich-Heine-University, Düsseldorf, Germany
| | - Hartwig Klinker
- Division of Infectious Disease, Department of Medicine II, University Hospital Würzburg, Würzburg, Germany
| | - Hans-Peter Tony
- Division of Rheumatology, Department of Medicine II, University Hospital Würzburg, Würzburg, Germany
| | - Beat Müllhaupt
- Department of Gastroenterology and Hepatology, University Hospital Zurich, Zurich, Switzerland
| | - Andreas Geier
- Division of Hepatology, Department of Medicine II, University Hospital Würzburg, Würzburg, Germany
- * E-mail:
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