1
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Tenca A, Kolho K, Consonni D, Jokelainen K, Färkkilä M. Dominant stricture in paediatric-onset primary sclerosing cholangitis is associated with impaired prognosis in a long-term follow-up. United European Gastroenterol J 2024; 12:717-725. [PMID: 38733616 PMCID: PMC11249836 DOI: 10.1002/ueg2.12583] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Accepted: 04/08/2024] [Indexed: 05/13/2024] Open
Abstract
BACKGROUND AND OBJECTIVES The impact of dominant stricture (DS) on the outcomes of paediatric-onset primary sclerosing cholangitis (PSC) is unknown. This study was aimed at investigating the impact of DS on the clinical course and prognosis of patients with paediatric-onset PSC. METHODS Patients with paediatric-onset PSC diagnosed between January 1993 and May 2017 were identified from hospital records or our PSC registry. Data including clinical, laboratory, cholangiography, and cytology at diagnosis and during follow-up (until July 2023) were reviewed. We graphed the Kaplan-Meier failure function and fitted crude and multivariable Cox model to calculate hazard ratios (HR) and 95% confidence intervals (CI) for selected variables. In these analyses, DS was treated as a time-varying variable. RESULTS We identified 68 patients (42 males) with paediatric-onset PSC (median age at diagnosis 15 years). The median follow-up was 13 years and the median age at the last follow-up was 27 years. In total, 35 (51%) had concomitant autoimmune hepatitis. DS was diagnosed in 33 patients (48%): in eight at the time of PSC diagnosis (12%) and in 25 (37%) by the end of follow-up. In patients with DS, two developed cirrhosis, seven were transplanted and one patient was operated for a biliary mass with low-grade dysplasia. In patients without a DS, two developed cirrhosis, and four were transplanted; one female was excluded from survival analysis because she already had cirrhosis at the time of PSC diagnosis. Cirrhosis or biliary dysplasia or needing liver transplantation for these indications were more frequent after the development of DS (10/33, adjusted HR 4.26, 95%CI: 1.26-14.4). No cholangiocarcinomas or deaths occurred during the follow-up. CONCLUSIONS DS was present at diagnosis or developed during follow-up in about half of the patients with paediatric-onset PSC and was associated with impaired outcome.
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Affiliation(s)
- Andrea Tenca
- Abdominal CenterHelsinki University and Helsinki University Hospital HUSHelsinkiFinland
| | - Kaija‐Leena Kolho
- Department of Paediatric GastroenterologyHelsinki University and Children's HospitalHelsinki University Hospital HUSHelsinkiFinland
| | - Dario Consonni
- Epidemiology UnitFondazione IRCCS Ca’ Granda Ospedale Maggiore PoliclinicoMilanItaly
| | - Kalle Jokelainen
- Abdominal CenterHelsinki University and Helsinki University Hospital HUSHelsinkiFinland
| | - Martti Färkkilä
- Abdominal CenterHelsinki University and Helsinki University Hospital HUSHelsinkiFinland
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2
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Boyd S, Mustamäki T, Sjöblom N, Nordin A, Tenca A, Jokelainen K, Rantapero T, Liuksiala T, Lahtinen L, Kuopio T, Kytölä S, Mäkisalo H, Färkkilä M, Arola J. NGS of brush cytology samples improves the detection of high-grade dysplasia and cholangiocarcinoma in patients with primary sclerosing cholangitis: A retrospective and prospective study. Hepatol Commun 2024; 8:e0415. [PMID: 38551383 PMCID: PMC10984659 DOI: 10.1097/hc9.0000000000000415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Accepted: 02/06/2024] [Indexed: 04/02/2024] Open
Abstract
BACKGROUND Biliary dysplasia, a precursor of cholangiocarcinoma (CCA), is a common complication of primary sclerosing cholangitis. Patients with high-grade dysplasia (HGD) or early CCA who have received oncological treatment are candidates for liver transplantation. The preoperative diagnosis of CCA or HGD is challenging, and the sensitivity of biliary brush cytology (BC) is limited. METHODS By using next-generation sequencing (NGS), we retrospectively analyzed archived tissue samples (n=62) obtained from explanted liver tissue and CCA samples to identify oncogenic mutations that occur during primary sclerosing cholangitis carcinogenesis. BC samples were prospectively collected from patients with primary sclerosing cholangitis (n=97) referred for endoscopic retrograde cholangiography to measure the diagnostic utility of NGS combined with BC compared with traditional cytology alone. RESULTS Mutations in KRAS, GNAS, FLT3, RNF43, TP53, ATRX, and SMAD4 were detected in archived CCA or HGD samples. KRAS, GNAS, TP53, CDKN2A, FBXW7, BRAF, and ATM mutations were detected in prospectively collected brush samples from patients with histologically verified CCA or HGD. One patient with low-grade dysplasia in the explanted liver had KRAS and GNAS mutations in brush sample. No mutations were observed in brush samples or archived tissues in liver transplantation cases without biliary neoplasia. While KRAS mutations are common in biliary neoplasms, they were also observed in patients without biliary neoplasia during surveillance. CONCLUSIONS In summary, NGS of BC samples increased the sensitivity of detecting biliary neoplasia compared with traditional cytology. Performing NGS on BC samples may help diagnose HGD or early CCA, benefiting the timing of liver transplantation.
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Affiliation(s)
- Sonja Boyd
- Department of Pathology, Helsinki University Hospital, University of Helsinki, Helsinki, Finland
| | - Taru Mustamäki
- Department of Pathology, Hospital Nova of Central Finland University of Jyväskylä, Jyväskylä, Finland
| | - Nelli Sjöblom
- Department of Pathology, Helsinki University Hospital, University of Helsinki, Helsinki, Finland
| | - Arno Nordin
- Department of Liver and Transplantation Surgery, Helsinki University Hospital, University of Helsinki, Finland
| | - Andrea Tenca
- Department of Gastroenterology, Helsinki University Hospital, University of Helsinki, Helsinki, Finland
| | - Kalle Jokelainen
- Department of Gastroenterology, Helsinki University Hospital, University of Helsinki, Helsinki, Finland
| | | | | | - Laura Lahtinen
- Department of Pathology, Hospital Nova of Central Finland University of Jyväskylä, Jyväskylä, Finland
| | - Teijo Kuopio
- Department of Pathology, Hospital Nova of Central Finland University of Jyväskylä, Jyväskylä, Finland
| | - Soili Kytölä
- Department of Genetics, Helsinki University Hospital, University of Helsinki, Finland
| | - Heikki Mäkisalo
- Department of Liver and Transplantation Surgery, Helsinki University Hospital, University of Helsinki, Finland
| | - Martti Färkkilä
- Department of Gastroenterology, Helsinki University Hospital, University of Helsinki, Helsinki, Finland
| | - Johanna Arola
- Department of Pathology, Helsinki University Hospital, University of Helsinki, Helsinki, Finland
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3
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Khamaysi I, Firman R, Martin P, Vasilyev G, Boyko E, Zussman E. Mechanical Perspective on Increasing Brush Cytology Yield. ACS Biomater Sci Eng 2024; 10:1743-1752. [PMID: 38373217 PMCID: PMC10934267 DOI: 10.1021/acsbiomaterials.3c00935] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Revised: 02/04/2024] [Accepted: 02/06/2024] [Indexed: 02/21/2024]
Abstract
Brush cytology is a sampling technique extensively used for mucosal surfaces, particularly to identify malignancies. A sample is obtained by rubbing the brush bristles over the stricture or lesion several times until cells are trapped. Brush cytology detection rate varies, with malignancy confirmed in 15-65% of cases of adenocarcinoma-associated biliary strictures and 44-80% of cases of cholangiocarcinoma. Despite the widespread use of brush cytology, there is no consensus to date defining the optimal biliary brushing parameters for the collection of suspicious lesions, such as the number of passes, brushing rate, and force applied. The aim of this work is to increase the brush cytology diagnostic yield by elucidating the underlying mechanical phenomena. First, the mechanical interactions between the brush bristles and sampled tissue are analyzed. During brushing, mucus and detached cells are transferred to the space between the bristles through the capillary rise and flow eddies. These mass transfer mechanisms and their dependence on mucus rheology as a function of pH, brush displacement rate, and bristle geometry and configuration are examined. Lastly, results from ex vivo brushing experiments performed on porcine stomachs are presented. Clinical practitioners from a variety of disciplines can apply the findings of this study to outline clear procedures for cytological brushing to increase the sensitivity and specificity of the brushings.
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Affiliation(s)
- Iyad Khamaysi
- Department
of Gastroenterology, The Ruth and Bruce Rappaport Faculty of Medicine, Technion—Israel Institute of Technology, Haifa 3525433, Israel
- Gastroenterology
Institute, Rambam Health
Care Campus, Haifa 3109601, Israel
| | - Ronen Firman
- Faculty
of Mechanical Engineering, Technion—Israel
Institute of Technology, Haifa 3200003, Israel
| | - Patrick Martin
- Faculty
of Mechanical Engineering, Technion—Israel
Institute of Technology, Haifa 3200003, Israel
| | - Gleb Vasilyev
- Faculty
of Mechanical Engineering, Technion—Israel
Institute of Technology, Haifa 3200003, Israel
| | - Evgeniy Boyko
- Faculty
of Mechanical Engineering, Technion—Israel
Institute of Technology, Haifa 3200003, Israel
| | - Eyal Zussman
- Faculty
of Mechanical Engineering, Technion—Israel
Institute of Technology, Haifa 3200003, Israel
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4
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Saca D, Flamm SL. Cholangiocarcinoma Surveillance Recommendations in Patients with Primary Sclerosing Cholangitis. Clin Liver Dis 2024; 28:183-192. [PMID: 37945159 DOI: 10.1016/j.cld.2023.07.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2023]
Abstract
Cholangiocarcinoma (CCA) is a deadly complication observed in the setting of primary sclerosing cholangitis (PSC). When symptoms develop and CCA is diagnosed, it is usually at an advanced stage. Median survival is less than 12 months. Early identification of CCA leads to improved outcomes. Although diagnostic tests have excellent specificity, they are plagued by low sensitivity. No surveillance strategies have been widely agreed upon, but most societies recommend measurement of serum carbohydrate antigen 19-9 and MRCP every 6 to 12 months in patients with PSC. Advances in understanding of the genetic factors that lead to CCA are awaited.
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Affiliation(s)
- Daniel Saca
- Rush University Medical School, 1725 West Harrison Street Suite 110, Chicago, IL 60612, USA
| | - Steven L Flamm
- Rush University Medical School, 1725 West Harrison Street Suite 110, Chicago, IL 60612, USA.
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5
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Andersen LM, Goh IY, Siriwardhane M. High-grade dysplasia of the cystic duct margin: how should this be managed? BMJ Case Rep 2023; 16:e255492. [PMID: 38081746 PMCID: PMC10729155 DOI: 10.1136/bcr-2023-255492] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2023] Open
Abstract
High-grade dysplasia (HGD) in the cystic duct is a rare epithelial lesion that may lead to biliary tract malignancy. Due to its association with aggressive multifocal cholangiocarcinoma, it is important to investigate for concurrent malignancy, remove all areas of HGD and monitor for recurrence or metastasis.We present a case of a woman in her 60s with cholecystitis who underwent a laparoscopic cholecystectomy. On histopathology, the patient was found to have incidental HGD involving the cystic duct margin. After ensuring the absence of concurrent malignancy on cross-sectional imaging, she underwent further resection until the margins were clear of dysplasia. In the absence of clear follow-up guidelines, the patient was closely monitored with outpatient scans for up to 5 years.
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Affiliation(s)
- Lalita Maria Andersen
- General Surgery, Mater Adult Hospital, South Brisbane, Queensland, Australia
- General Surgery, GCUH, Southport, Queensland, Australia
| | - Ian Y Goh
- Surgery, Hervey Bay Hospital, Pialba, Queensland, Australia
| | - Mehan Siriwardhane
- General Surgery, Mater Adult Hospital, South Brisbane, Queensland, Australia
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6
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Vannas MJ, Åberg F, Nordin A, Tukiainen E, Savikko J, Isoniemi H. Comprehensive Complication Index to Monitor Morbidity and Mortality After Liver Transplantation in Primary Sclerosing Cholangitis. Ann Surg 2023; 278:e773-e779. [PMID: 36825495 PMCID: PMC10481909 DOI: 10.1097/sla.0000000000005831] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/25/2023]
Abstract
OBJECTIVE The objective of this study was to investigate the short-term and long-term morbidity after liver transplantation (LTx) in patients with primary sclerosing cholangitis (PSC). BACKGROUND PSC is a common indication for LTx in Scandinavia. Recently, research has focused on long-term survival and morbidity. The Comprehensive Complication Index (CCI) precisely describes postsurgical complications, by considering both number and severity. PATIENTS AND METHODS Two patient groups were compared: those with classical PSC symptoms (n=148) and those with increased risk of cholangiocarcinoma (n=51, premalignant group). Two CCI scores were calculated, at 1-year post-LTx and a cumulative overall score at the latest follow-up. In addition, we investigated factors potentially related to high CCI. RESULTS The 1-year median CCI were 29.6 and 26.2 in the classical and premalignant groups, respectively ( P =0.308). The median overall CCI were 43.2 and 46.8 ( P =0.765), respectively. Patient survival was significantly lower in patients with 1-year CCI>42. The most common complications associated with low survival were cholangitis, infections, and hypertension. One-year and overall CCI were similar between sexes and different types of biliary anastomosis. Patients with pre-LTx Model for End-stage Liver Disease scores >20 had higher 1-year and overall CCI (36.2 and 52.6, respectively) than those with lower Model for End-stage Liver Disease scores. Both low (<22) and high (>25 kg/m 2 ) body mass indices were associated with high overall 1-year and overall CCI (50.9 and 41.8, respectively), but median body mass indices were associated with significantly lower 1-year and overall CCI (38.4, P =0.023). CONCLUSIONS The previously determined 1-year CCI cutoff of 42 could significantly predict survival post-LTx. Mortality and morbidity were not significantly different between the PSC groups analyzed.
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7
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Duggan WP, Brosnan C, Christodoulides N, Nolan N, Kambakamba P, Gallagher TK. Outruling cholangiocarcinoma in patients with primary sclerosing cholangitis wait-listed for liver transplantation: A report on the Irish national experience. Surgeon 2023; 21:e83-e88. [PMID: 35680491 DOI: 10.1016/j.surge.2022.05.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2021] [Revised: 05/05/2022] [Accepted: 05/18/2022] [Indexed: 11/18/2022]
Abstract
BACKGROUND The presence of diffuse biliary stricturing in Primary Sclerosing Cholangitis (PSC) makes the diagnosis of early Cholangiocarcinoma (CCA) in this context difficult. A finding of incidental CCA on liver explant is associated with poor oncological outcomes, despite this; there remains no international consensus on how best to outrule CCA in this group ahead of transplantation. The objectives of this study were to report the Irish incidence of incidental CCA in individuals with PSC undergoing liver transplantation, and to critically evaluate the accuracy of diagnostic modalities in outruling CCA in our wait-listed PSC cohort. METHODS We conducted a retrospective analysis of our prospectively maintained database, which included all PSC patients wait-listed for liver transplant in Ireland. RESULTS 4.41% of patients (n = 3) were found to have an incidental finding of CCA on liver explant. Despite only being performed in 35.06% of wait-listed PSC patients (n = 27), Endoscopic Retrograde Cholangiopancreatogram (ERCP) with brush cytology was found to be the most effective tool in correctly outruling CCA in this context; associated with a specificity of 96.15%. CONCLUSION Our findings support a future role for routine surveillance of PSC patients awaiting liver transplantation; however further research is required in order to identify which investigative modalities are of optimal diagnostic utility in this specific context.
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Affiliation(s)
- William P Duggan
- Department of Hepatobiliary and Transplant Surgery, St. Vincent's University Hospital, Elm Park, Dublin 4, Ireland; Department of Surgery, Royal College of Surgeons in Ireland, Dublin 2, Ireland.
| | - Conor Brosnan
- Department of Hepatobiliary and Transplant Surgery, St. Vincent's University Hospital, Elm Park, Dublin 4, Ireland; Department of Surgery, Royal College of Surgeons in Ireland, Dublin 2, Ireland
| | | | - Niamh Nolan
- Department of Pathology, St. Vincent's University Hospital, Elm Park, Dublin, Ireland
| | - Patryk Kambakamba
- Department of Hepatobiliary and Transplant Surgery, St. Vincent's University Hospital, Elm Park, Dublin 4, Ireland
| | - Tom K Gallagher
- Department of Hepatobiliary and Transplant Surgery, St. Vincent's University Hospital, Elm Park, Dublin 4, Ireland
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8
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Bergquist A, Weismüller TJ, Levy C, Rupp C, Joshi D, Nayagam JS, Montano-Loza AJ, Lytvyak E, Wunsch E, Milkiewicz P, Zenouzi R, Schramm C, Cazzagon N, Floreani A, Liby IF, Wiestler M, Wedemeyer H, Zhou T, Strassburg CP, Rigopoulou E, Dalekos G, Narasimman M, Verhelst X, Degroote H, Vesterhus M, Kremer AE, Bündgens B, Rorsman F, Nilsson E, Jørgensen KK, von Seth E, Cornillet Jeannin M, Nyhlin N, Martin H, Kechagias S, Wiencke K, Werner M, Beretta-Piccoli BT, Marzioni M, Isoniemi H, Arola J, Wefer A, Söderling J, Färkkilä M, Lenzen H. Impact on follow-up strategies in patients with primary sclerosing cholangitis. Liver Int 2023; 43:127-138. [PMID: 35535655 PMCID: PMC10084018 DOI: 10.1111/liv.15286] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2022] [Revised: 04/22/2022] [Accepted: 05/06/2022] [Indexed: 01/04/2023]
Abstract
BACKGROUND & AIMS Evidence for the benefit of scheduled imaging for early detection of hepatobiliary malignancies in primary sclerosing cholangitis (PSC) is limited. We aimed to compare different follow-up strategies in PSC with the hypothesis that regular imaging improves survival. METHODS We collected retrospective data from 2975 PSC patients from 27 centres. Patients were followed from the start of scheduled imaging or in case of clinical follow-up from 1 January 2000, until death or last clinical follow-up alive. The primary endpoint was all-cause mortality. RESULTS A broad variety of different follow-up strategies were reported. All except one centre used regular imaging, ultrasound (US) and/or magnetic resonance imaging (MRI). Two centres used scheduled endoscopic retrograde cholangiopancreatography (ERCP) in addition to imaging for surveillance purposes. The overall HR (CI95%) for death, adjusted for sex, age and start year of follow-up, was 0.61 (0.47-0.80) for scheduled imaging with and without ERCP; 0.64 (0.48-0.86) for US/MRI and 0.53 (0.37-0.75) for follow-up strategies including scheduled ERCP. The lower risk of death remained for scheduled imaging with and without ERCP after adjustment for cholangiocarcinoma (CCA) or high-grade dysplasia as a time-dependent covariate, HR 0.57 (0.44-0.75). Hepatobiliary malignancy was diagnosed in 175 (5.9%) of the patients at 7.9 years of follow-up. Asymptomatic patients (25%) with CCA had better survival if scheduled imaging had been performed. CONCLUSIONS Follow-up strategies vary considerably across centres. Scheduled imaging was associated with improved survival. Multiple factors may contribute to this result including early tumour detection and increased endoscopic treatment of asymptomatic benign biliary strictures.
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Affiliation(s)
- Annika Bergquist
- Department of Medicine Huddinge, Unit of Gastroenterology and Rheumatology, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden.,European Reference Network for Hepatological Diseases, Stockholm, Sweden
| | - Tobias J Weismüller
- Department of Internal Medicine I, University Hospital Bonn, University of Bonn, Bonn, Germany
| | - Cynthia Levy
- Division of Digestive Health and Liver Diseases, University of Miami, Florida, USA.,Schiff Center for Liver Diseases, University of Miami, Florida, USA
| | - Christian Rupp
- Department of Gastroenterology, Infectious Diseases, Intoxication, Heidelberg University Hospital, Heidelberg, Germany
| | - Deepak Joshi
- Institute of Liver Studies, King's College Hospital, London, United Kingdom
| | | | - Aldo J Montano-Loza
- Division of Gastroenterology and Liver Unit, Department of Medicine, University of Alberta, Edmonton, Alberta, Canada
| | - Ellina Lytvyak
- Division of Gastroenterology and Liver Unit, Department of Medicine, University of Alberta, Edmonton, Alberta, Canada
| | - Ewa Wunsch
- Translational Medicine Group, Pomeranian Medical University, Szczecin, Poland
| | - Piotr Milkiewicz
- Translational Medicine Group, Pomeranian Medical University, Szczecin, Poland.,Liver and Internal Medicine Unit, Medical University of Warsaw, Warsaw, Poland
| | - Roman Zenouzi
- Department of Medicine and Martin Zeitz Center for Rare Diseases, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Christoph Schramm
- Department of Medicine and Martin Zeitz Center for Rare Diseases, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Nora Cazzagon
- Department of Surgery, Oncology and Gastroenterology, University of Padova, Padova, Italy.,European Reference Network on Hepatological Disease, European Reference Network for Hepatological Diseases, Azienda Ospedaliera-Università di Padova, Padova, Italy
| | - Annarosa Floreani
- Studiosa Senior University of Padova, Italy and Scientific Consultant IRCCS Negrar, Verona, Italy
| | - Ingalill Friis Liby
- Department of Gastroenterology and Hepatology, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Miriam Wiestler
- Department of Gastroenterology, Hepatology and Endocrinology, Hannover Medical School, Hannover, Germany.,European Reference Network for Hepatological Diseases, Hannover, Germany
| | - Heiner Wedemeyer
- Department of Gastroenterology, Hepatology and Endocrinology, Hannover Medical School, Hannover, Germany.,European Reference Network for Hepatological Diseases, Hannover, Germany
| | - Taotao Zhou
- Department of Internal Medicine I, University Hospital Bonn, University of Bonn, Bonn, Germany
| | - Christian P Strassburg
- Department of Internal Medicine I, University Hospital Bonn, University of Bonn, Bonn, Germany
| | - Eirini Rigopoulou
- Department of Medicine and Research Laboratory of Internal Medicine, National Expertise Center of Greece in Autoimmune Liver Diseases, General University Hospital of Larissa, Larissa, Greece
| | - George Dalekos
- Department of Medicine and Research Laboratory of Internal Medicine, National Expertise Center of Greece in Autoimmune Liver Diseases, General University Hospital of Larissa, Larissa, Greece
| | | | - Xavier Verhelst
- Department of Gastroenterology and Hepatology, Ghent University Hospital, Ghent, Belgium.,Ghent Liver Research Center, Ghent University, Ghent, Belgium.,European Reference Network for Hepatological Diseases, Ghent, Belgium
| | - Helena Degroote
- Department of Gastroenterology and Hepatology, Ghent University Hospital, Ghent, Belgium.,Ghent Liver Research Center, Ghent University, Ghent, Belgium.,European Reference Network for Hepatological Diseases, Ghent, Belgium
| | - Mette Vesterhus
- Norwegian PSC Research Centre, Department of Transplantation Medicine, Division of Surgery, Inflammatory Diseases and Transplantation, Oslo University Hospital Rikshospitalet, Oslo, Norway.,Department of Clinical Science, University of Bergen, Bergen, Norway.,Department of Medicine, Haraldsplass Deaconess Hospital, Bergen, Norway
| | - Andreas E Kremer
- Department of Medicine 1, Friedrich-Alexander-University Erlangen-Nürnberg and University Hospital Erlangen, Erlangen, Germany.,Department of Gastroenterology and Hepatology, University Hospital Zürich, Zürich, Switzerland
| | - Bennet Bündgens
- Department of Gastroenterology and Hepatology, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Fredrik Rorsman
- Department of Gastroenterology and Hepatology, University Hospital, Uppsala, Sweden
| | - Emma Nilsson
- Department of Clinical Sciences, Lund University, Lund, Sweden.,Gastroenterology Clinic, Skåne University Hospital, Sweden
| | | | - Erik von Seth
- Department of Medicine Huddinge, Unit of Gastroenterology and Rheumatology, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden.,European Reference Network for Hepatological Diseases, Stockholm, Sweden
| | - Martin Cornillet Jeannin
- Department of Medicine Huddinge, Center for Infectious Medicine, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
| | - Nils Nyhlin
- Department of Gastroenterology, Faculty of Medicine and Health, Örebro University, Örebro, Sweden
| | - Harry Martin
- Department of Gastroenterology, University College Hospitals NHS Foundation Trust, London, UK
| | - Stergios Kechagias
- Unit of Internal Medicine, Department of Health, Medicine and Caring Sciences, Linköping University, Linköping, Sweden
| | - Kristine Wiencke
- Norwegian PSC Research Centre, Department of Transplantation Medicine, Division of Surgery, Inflammatory Diseases and Transplantation, Oslo University Hospital Rikshospitalet, Oslo, Norway
| | - Mårten Werner
- Department of Public Health and Clinical Medicine, Umeå University, Umeå, Sweden
| | | | - Marco Marzioni
- Clinic of Gastroenterology and Hepatology, Università Politecnica delle Marche, Ospedali Riuniti - University Hospital, Ancona, Italy
| | - Helena Isoniemi
- Transplantation and Liver Surgery, Abdominal Center, Helsinki University Hospital, Helsinki, Finland
| | - Johanna Arola
- Department of Pathology and Huslab, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Agnes Wefer
- Division of Surgery, Karolinska University Hospital, Stockholm, Sweden
| | - Jonas Söderling
- Clinical Epidemiology Division, Department of Medicine, Solna, Karolinska Institutet, Stockholm, Sweden
| | - Martti Färkkilä
- Clinic of Gastroenterology, Abdominal Center, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Henrike Lenzen
- Department of Gastroenterology, Hepatology and Endocrinology, Hannover Medical School, Hannover, Germany.,European Reference Network for Hepatological Diseases, Hannover, Germany.,Department of Gastroenterology and Hepatology, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
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9
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Zhang Y, Gao X, He Z, Jia H, Chen M, Wang X, Hong L, Cui Y, Wan J. Prevalence of inflammatory bowel disease in patients with primary sclerosing cholangitis: A systematic review and meta-analysis. Liver Int 2022; 42:1814-1822. [PMID: 35689520 DOI: 10.1111/liv.15339] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/26/2022] [Revised: 05/05/2022] [Accepted: 06/08/2022] [Indexed: 12/31/2022]
Abstract
BACKGROUND AND AIM Previous studies have established an association between primary sclerosing cholangitis (PSC) and inflammatory bowel disease (IBD), including Crohn's disease and ulcerative colitis (UC). The disease burden of IBD in PSC patients was not well estimated. The study aimed to quantify the pooled prevalence of IBD in PSC and to investigate whether subtypes of PSC and sex influence the prevalence of IBD. METHODS PubMed, Embase, and Web of Science were searched through November 2021 for studies reporting data on IBD among PSC patients. The outcomes were the prevalence of IBD in patients with PSC, as well as the association (odds ratio [OR]) of IBD in PSC according to subtype and sex. RESULTS Based on the analysis of 25 studies, the prevalence of IBD in patients with PSC was 71.1% (95% CI 68.2-75.1%), most commonly in UC (55.9%, 95% CI 52.5-59.3%). The pooled prevalence of IBD was 76.9% in Australia (95% CI 71.2-82.6%, 1 study), 75.9% (95% CI 69.5-82.3%, 4 studies) in North America, 70.9% (95% CI 65.8-76.0%, 17 studies) in Europe and 67.0% (95% CI 57.9-76.0%, 2 studies) in Asia. Male PSC patients had a higher prevalence of IBD (OR 1.67, 95% CI 1.52-1.83) and UC (OR 2.02, 95% CI 1.56-2.63) and a lower prevalence of CD (OR 0.77, 95% CI 0.67-0.88) than female patients. Large duct PSC patients had a higher prevalence of IBD (OR 2.57, 95% CI 2.03-3.25) and UC (OR 4.51, 95% CI 1.22-16.71) than small duct PSC patients. CONCLUSIONS The study provided the first pooled estimates of the burden of IBD in patients with PSC and could be used as the basis for risk stratification of PSC patients.
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Affiliation(s)
- Yujie Zhang
- Department of Histology and Embryology, School of Basic Medicine, Xi'an Medical University, Xi'an, China
| | - Xinbao Gao
- Medical affairs, Tigermed Consulting Co., Ltd, Hangzhou, China
| | - Zhiyi He
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research and Department of Prosthodontics, College of Stomatology, Xi'an Jiaotong University, Xi'an, China
| | - Hui Jia
- Department of gastroenterology, Key Laboratory of Clinical Cancer Pharmacology and Toxicology Research of Zhejiang Province, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Min Chen
- State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, China
| | - Xuan Wang
- Department of Neurology, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Liu Hong
- State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, China
| | - Yuanyuan Cui
- Department of Histology and Embryology, School of Basic Medicine, Xi'an Medical University, Xi'an, China
| | - Jian Wan
- State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, China
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10
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Vedeld HM, Grimsrud MM, Andresen K, Pharo HD, von Seth E, Karlsen TH, Honne H, Paulsen V, Färkkilä MA, Bergquist A, Jeanmougin M, Aabakken L, Boberg KM, Folseraas T, Lind GE. Early and accurate detection of cholangiocarcinoma in patients with primary sclerosing cholangitis by methylation markers in bile. Hepatology 2022; 75:59-73. [PMID: 34435693 PMCID: PMC9300181 DOI: 10.1002/hep.32125] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Revised: 08/12/2021] [Accepted: 08/13/2021] [Indexed: 12/15/2022]
Abstract
BACKGROUND AND AIMS Primary sclerosing cholangitis (PSC) is associated with increased risk of cholangiocarcinoma (CCA). Early and accurate CCA detection represents an unmet clinical need as the majority of patients with PSC are diagnosed at an advanced stage of malignancy. In the present study, we aimed at establishing robust DNA methylation biomarkers in bile for early and accurate diagnosis of CCA in PSC. APPROACH AND RESULTS Droplet digital PCR (ddPCR) was used to analyze 344 bile samples from 273 patients with sporadic and PSC-associated CCA, PSC, and other nonmalignant liver diseases for promoter methylation of cysteine dioxygenase type 1, cannabinoid receptor interacting protein 1, septin 9, and vimentin. Receiver operating characteristic (ROC) curve analyses revealed high AUCs for all four markers (0.77-0.87) for CCA detection among patients with PSC. Including only samples from patients with PSC diagnosed with CCA ≤ 12 months following bile collection increased the accuracy for cancer detection, with a combined sensitivity of 100% (28/28) and a specificity of 90% (20/203). The specificity increased to 93% when only including patients with PSC with longtime follow-up (> 36 months) as controls, and remained high (83%) when only including patients with PSC and dysplasia as controls (n = 23). Importantly, the bile samples from the CCA-PSC ≤ 12 patients, all positive for the biomarkers, included both early-stage and late-stage CCA, different tumor growth patterns, anatomical locations, and carbohydrate antigen 19-9 levels. CONCLUSIONS Using highly sensitive ddPCR to analyze robust epigenetic biomarkers, CCA in PSC was accurately detected in bile, irrespective of clinical and molecular features, up to 12 months before CCA diagnosis. The findings suggest a potential for these biomarkers to complement current detection and screening methods for CCA in patients with PSC.
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Affiliation(s)
- Hege Marie Vedeld
- Department of Molecular OncologyInstitute for Cancer ResearchOslo University Hospital–Norwegian Radium HospitalOsloNorway,K. G. Jebsen Colorectal Cancer Research CentreOslo University HospitalOsloNorway
| | - Marit M. Grimsrud
- Norwegian PSC Research Center, Department of Transplantation MedicineOslo University HospitalOsloNorway,Institute of Clinical MedicineUniversity of OsloOsloNorway
| | - Kim Andresen
- Department of Molecular OncologyInstitute for Cancer ResearchOslo University Hospital–Norwegian Radium HospitalOsloNorway,K. G. Jebsen Colorectal Cancer Research CentreOslo University HospitalOsloNorway
| | - Heidi D. Pharo
- Department of Molecular OncologyInstitute for Cancer ResearchOslo University Hospital–Norwegian Radium HospitalOsloNorway,K. G. Jebsen Colorectal Cancer Research CentreOslo University HospitalOsloNorway
| | - Erik von Seth
- Department of Medicine HuddingeUnit of Gastroenterology and RheumatologyKarolinska InstitutetKarolinska University HospitalStockholmSweden
| | - Tom H. Karlsen
- Norwegian PSC Research Center, Department of Transplantation MedicineOslo University HospitalOsloNorway,Institute of Clinical MedicineUniversity of OsloOsloNorway,Section of GastroenterologyDepartment of Transplantation MedicineDivision of Surgery, Inflammatory Medicine and TransplantationOslo University Hospital–RikshospitaletOsloNorway
| | - Hilde Honne
- Department of Molecular OncologyInstitute for Cancer ResearchOslo University Hospital–Norwegian Radium HospitalOsloNorway,K. G. Jebsen Colorectal Cancer Research CentreOslo University HospitalOsloNorway
| | - Vemund Paulsen
- Section of GastroenterologyDepartment of Transplantation MedicineDivision of Surgery, Inflammatory Medicine and TransplantationOslo University Hospital–RikshospitaletOsloNorway
| | - Martti A. Färkkilä
- Department of MedicineDivision of GastroenterologyHelsinki University Hospital and Helsinki UniversityHelsinkiFinland
| | - Annika Bergquist
- Department of Medicine HuddingeUnit of Gastroenterology and RheumatologyKarolinska InstitutetKarolinska University HospitalStockholmSweden
| | - Marine Jeanmougin
- Department of Molecular OncologyInstitute for Cancer ResearchOslo University Hospital–Norwegian Radium HospitalOsloNorway,K. G. Jebsen Colorectal Cancer Research CentreOslo University HospitalOsloNorway
| | - Lars Aabakken
- Institute of Clinical MedicineUniversity of OsloOsloNorway,Section of GastroenterologyDepartment of Transplantation MedicineDivision of Surgery, Inflammatory Medicine and TransplantationOslo University Hospital–RikshospitaletOsloNorway
| | - Kirsten M. Boberg
- Norwegian PSC Research Center, Department of Transplantation MedicineOslo University HospitalOsloNorway,Institute of Clinical MedicineUniversity of OsloOsloNorway,Section of GastroenterologyDepartment of Transplantation MedicineDivision of Surgery, Inflammatory Medicine and TransplantationOslo University Hospital–RikshospitaletOsloNorway
| | - Trine Folseraas
- Norwegian PSC Research Center, Department of Transplantation MedicineOslo University HospitalOsloNorway,Section of GastroenterologyDepartment of Transplantation MedicineDivision of Surgery, Inflammatory Medicine and TransplantationOslo University Hospital–RikshospitaletOsloNorway
| | - Guro E. Lind
- Department of Molecular OncologyInstitute for Cancer ResearchOslo University Hospital–Norwegian Radium HospitalOsloNorway,K. G. Jebsen Colorectal Cancer Research CentreOslo University HospitalOsloNorway
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11
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Fung BM, Tabibian JH. Primary sclerosing cholangitis-associated cholangiocarcinoma: special considerations and best practices. Expert Rev Gastroenterol Hepatol 2021; 15:487-496. [PMID: 33682586 DOI: 10.1080/17474124.2021.1900732] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Introduction: Primary sclerosing cholangitis (PSC) is a rare, heterogenous, chronic cholestatic liver disease that causes fibro-inflammatory destruction of the intra- and/or extrahepatic bile ducts. The disease course may be variable, though in many cases it ultimately leads to biliary cirrhosis and its associated complications. PSC is also associated with malignancies, in particular cholangiocarcinoma (CCA), a dreaded neoplasm of the biliary tract with a poor prognosis. Risk stratification and surveillance for this malignancy are important components of the care of patients with PSC.Areas covered: In this review, we discuss important considerations in the clinical epidemiology, risk factors, diagnosis, and surveillance of PSC-associated CCA.Expert opinion: Despite growing awareness of PSC, high-quality evidence regarding the management of PSC and its associated risk of CCA remains limited. Early diagnosis of PSC-associated CCA remains difficult, and treatment options are limited, especially when diagnosed at later stages. The recent introduction of recommendations for CCA surveillance will likely improve outcomes, though an optimal surveillance approach has yet to be validated prospectively. Further research is needed in the development of high-accuracy (and noninvasive) surveillance and diagnostic tools that may facilitate earlier diagnosis of CCA and potential disease cure.
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Affiliation(s)
- Brian M Fung
- Division of Gastroenterology and Hepatology, Department of Medicine, University of Arizona College of Medicine - Phoenix, Phoenix, AZ, USA
| | - James H Tabibian
- Division of Gastroenterology, Department of Medicine, Olive View-UCLA Medical Center, Sylmar, CA, USA.,David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
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12
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Song J, Li Y, Bowlus CL, Yang G, Leung PSC, Gershwin ME. Cholangiocarcinoma in Patients with Primary Sclerosing Cholangitis (PSC): a Comprehensive Review. Clin Rev Allergy Immunol 2020; 58:134-149. [PMID: 31463807 DOI: 10.1007/s12016-019-08764-7] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Cholangiocarcinoma (CCA) is the most common malignancy in patients with primary sclerosing cholangitis (PSC) and carries a high rate of mortality. Although the pathogenesis of CCA in PSC is largely unknown, inflammation-driven carcinogenesis concomitant with various genetic and epigenetic abnormalities are underlying factors. The majority of CCA cases develop from a dominant stricture (DS), which is defined as a stricture with a diameter < 1.5 mm in the common bile duct or < 1.0 mm in the hepatic duct. In PSC patients presenting with an abrupt aggravation of jaundice, pain, fatigue, pruritus, weight loss, or worsening liver biochemistries, CCA should be suspected and evaluated utilizing a variety of diagnostic modalities. However, early recognition of CCA in PSC remains a major challenge. Importantly, 30-50% of CCA in PSC patients are observed within the first year following the diagnosis of PSC followed by an annual incidence ranging from 0.5 to 1.5 per 100 persons, which is nearly 10 to 1000 times higher than that in the general population. Cumulative 5-year, 10-year, and lifetime incidences are 7%, 8-11%, and 9-20%, respectively. When PSC-associated CCA is diagnosed, most tumors are unresectable, and no effective medications are available. Given the poor therapeutic outcome, the surveillance and management of PSC patients who are at an increased risk of developing CCA are of importance. Such patients include older males with large-duct PSC and possibly concurrent ulcerative colitis. Thus, more attention should be paid to patients with these clinical features, in particular within the first year after PSC diagnosis. In contrast, CCA is less frequently observed in pediatric or female PSC patients or in those with small-duct PSC or concurrent Crohn's disease. Recently, new biomarkers such as antibodies to glycoprotein 2 have been found to be associated with an increased risk of developing CCA in PSC. Herein, we review the literature on the pathogenesis, incidence, clinical features, and risk factors, with a focus on various diagnostic modalities of PSC-associated CCA.
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Affiliation(s)
- Junmin Song
- Department of Gastroenterology, Shengjing Hospital of China Medical University, No. 36 Sanhao Street, Heping District, Shenyang, 110004, Liaoning, People's Republic of China.,Division of Rheumatology, Allergy and Clinical Immunology, University of California, 451 Health Science Drive, Suite 6510, Davis, CA, 95616, USA
| | - Yang Li
- Department of Intensive Care Unit (ICU), Shengjing Hospital of China Medical University, No. 36 Sanhao Street, Heping District, Shenyang, Liaoning, 110004, People's Republic of China
| | - Christopher L Bowlus
- Division of Gastroenterology and Hepatology, University of California, 451 Health Sciences Drive, Suite 6510, Davis, CA, 95616, USA
| | - GuoXiang Yang
- Division of Rheumatology, Allergy and Clinical Immunology, University of California, 451 Health Science Drive, Suite 6510, Davis, CA, 95616, USA
| | - Patrick S C Leung
- Division of Rheumatology, Allergy and Clinical Immunology, University of California, 451 Health Science Drive, Suite 6510, Davis, CA, 95616, USA.
| | - M Eric Gershwin
- Division of Rheumatology, Allergy and Clinical Immunology, University of California, 451 Health Science Drive, Suite 6510, Davis, CA, 95616, USA.
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13
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Sun LJ, Guan A, Xu WY, Liu MX, Yin HH, Jin B, Xu G, Xie FH, Xu HF, Du SD, Xu YY, Zhao HT, Lu X, Sang XT, Yang HY, Mao YL. γ-glutamyl transferase-to-platelet ratio based nomogram predicting overall survival of gallbladder carcinoma. World J Gastrointest Oncol 2020; 12:1014-1030. [PMID: 33005295 PMCID: PMC7510004 DOI: 10.4251/wjgo.v12.i9.1014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/02/2020] [Revised: 05/30/2020] [Accepted: 08/04/2020] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Gallbladder carcinoma (GBC) carries a poor prognosis and requires a prediction method. Gamma-glutamyl transferase–to–platelet ratio (GPR) is a recently reported cancer prognostic factor. Although the mechanism for the relationship between GPR and poor cancer prognosis remains unclear, studies have demonstrated the clinical effect of both gamma-glutamyl transferase and platelet count on GBC and related gallbladder diseases.
AIM To assess the prognostic value of GPR and to design a prognostic nomogram for GBC.
METHODS The analysis involved 130 GBC patients who underwent surgery at Peking Union Medical College Hospital from December 2003 to April 2017. The patients were stratified into a high- or low-GPR group. The predictive ability of GPR was evaluated by Kaplan–Meier analysis and a Cox regression model. We developed a nomogram based on GPR, which we verified using calibration curves. The nomogram and other prognosis prediction models were compared using time-dependent receiver operating characteristic curves and the concordance index.
RESULTS Patients in the high-GPR group had a higher risk of jaundice, were older, and had higher carbohydrate antigen 19-9 levels and worse postoperative outcomes. Univariate analysis revealed that GPR, age, body mass index, tumor–node–metastasis (TNM) stage, jaundice, cancer cell differentiation degree, and carcinoembryonic antigen and carbohydrate antigen 19-9 levels were related to overall survival (OS). Multivariate analysis confirmed that GPR, body mass index, age, and TNM stage were independent predictors of poor OS. Calibration curves were highly consistent with actual observations. Comparisons of time-dependent receiver operating characteristic curves and the concordance index showed advantages for the nomogram over TNM staging.
CONCLUSION GPR is an independent predictor of GBC prognosis, and nomogram-integrated GPR is a promising predictive model for OS in GBC.
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Affiliation(s)
- Le-Jia Sun
- Department of Liver Surgery, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Ai Guan
- Department of Clinical Medicine, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Wei-Yu Xu
- Department of General Surgery, Beijing Friendship Hospital, Capital Medical University, Beijing 100730, China
| | - Mei-Xi Liu
- Department of Clinical Medicine, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Huan-Huan Yin
- Department of Clinical Medicine, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Bao Jin
- Department of Liver Surgery, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Gang Xu
- Department of Liver Surgery, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Fei-Hu Xie
- Department of Liver Surgery, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Hai-Feng Xu
- Department of Liver Surgery, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Shun-Da Du
- Department of Liver Surgery, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Yi-Yao Xu
- Department of Liver Surgery, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Hai-Tao Zhao
- Department of Liver Surgery, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Xin Lu
- Department of Liver Surgery, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Xin-Ting Sang
- Department of Liver Surgery, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Hua-Yu Yang
- Department of Liver Surgery, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Yi-Lei Mao
- Department of Liver Surgery, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100730, China
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14
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Lee H, Rabinovitch PS, Mattis AN, Kakar S, Choi WT. DNA flow cytometric analysis of paraffin-embedded tissue for the diagnosis of malignancy in bile duct biopsies. Hum Pathol 2020; 99:80-87. [PMID: 32272125 DOI: 10.1016/j.humpath.2020.04.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Accepted: 04/01/2020] [Indexed: 01/22/2023]
Abstract
Differentiation of reactive versus neoplastic epithelial changes can be challenging in bile duct biopsies. The samples are often scant, distorted, and mixed with significant inflammation, ulceration, and/or debris. Histological confirmation of malignancy is often required before the initiation of surgical therapy, and an erroneous diagnosis of malignancy can lead to unnecessary clinical management. Aneuploidy assessment by DNA flow cytometry was performed on formalin-fixed paraffin-embedded (FFPE) tissue from 63 bile duct biopsies: 10 with a malignant diagnosis (7 with adenocarcinoma and 3 with at least high-grade dysplasia [HGD]); 3 with an atypical diagnosis showing rare atypical glands/cells, concerning but not definite for malignancy; 28 likely reactive biopsies with acute/chronic inflammation, ulceration, and/or mild nuclear atypia; and 22 additional benign biopsies without significant inflammation, ulceration, or nuclear atypia. Aneuploidy was detected in 7 (70%) of the 10 biopsies with definite neoplasia (5 of 7 adenocarcinoma cases and 2 of 3 at least HGD cases), all 3 (100%) atypical biopsies, and none of the 50 benign biopsies. All 3 atypical cases with aneuploidy were subsequently found to have adenocarcinoma (n = 2) or HGD (n = 1). Among the 2 cases of at least HGD with aneuploidy, 1 case developed adenocarcinoma, but no follow-up information was available in the other case. The remaining 1 case of at least HGD, despite having normal DNA content, was found to have adenocarcinoma on follow-up. None of the 50 benign cases (further supported by normal DNA content) developed adenocarcinoma within a mean follow-up time of 37 months (range: 0-282 months). The estimated sensitivity of aneuploidy as a diagnostic marker of malignancy (adenocarcinoma and HGD) was 70%, with the specificity of 100%, positive predictive value of 100%, and negative predictive value of 94%. In conclusion, DNA flow cytometry using FFPE tissue from bile duct biopsies demonstrates a high rate of aneuploidy (70%) in malignant cases and normal DNA content in all benign biopsies. Although the sample size is small, the results indicate that this assay can be potentially useful in challenging atypical cases, where morphological evaluation is limited by scarcity of atypical glands/cells, inflammation, and/or ulceration.
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Affiliation(s)
- Hannah Lee
- University of California at San Francisco, Department of Pathology, San Francisco, CA, 94143, USA
| | | | - Aras N Mattis
- University of California at San Francisco, Department of Pathology, San Francisco, CA, 94143, USA; University of California at San Francisco, Liver Center, San Francisco, CA, 94143, USA
| | - Sanjay Kakar
- University of California at San Francisco, Department of Pathology, San Francisco, CA, 94143, USA
| | - Won-Tak Choi
- University of California at San Francisco, Department of Pathology, San Francisco, CA, 94143, USA.
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15
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Lv P, Luo YF, Zhou WY, Liu B, Zhou Z, Shi YZ, Huang R, Peng C, He ZL, Wang J, Zhang HH, Nie SD. miR-373 inhibits autophagy and further promotes apoptosis of cholangiocarcinoma cells by targeting ULK1. Kaohsiung J Med Sci 2020; 36:429-440. [PMID: 32125086 DOI: 10.1002/kjm2.12191] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Accepted: 01/14/2020] [Indexed: 12/20/2022] Open
Abstract
Intrahepatic cholangiocarcinoma is a malignant tumor originating from intrahepatic bile ducts. Surgical therapy, radiotherapy, and chemotherapy are taken to treat this disease, but it is prone to recurrence and metastasis, with poor prognosis. Therefore, it is of great significance to explore new targets and molecular mechanisms for the development of cholangiocarcinoma cells. Clinical cholangiocarcinoma tissues from patients and four human cholangiocarcinoma cell lines were analyzed for microRNA-373 (miR-373) expression. For investigating whether miR-373 directly modulated unc-51 like autophagy activating kinase 1 (ULK1), dual-luciferase reporter assay was performed. In addition, CCK-8 assay, flow cytometry, western blot, and immunofluorescence were applied to evaluate the proliferation, apoptosis, and autophagy of cholangiocytic hepatocellular carcinoma cells. miR-373 downregulation was observed in clinical tissues and cell lines of cholangiocarcinoma. Overexpression of miR-373 reduced proliferation, enhanced apoptosis, and raised expression levels of pro-apoptosis proteins including BCL2 associated X (Bax), Caspase-3, and Caspase-9. Moreover, overexpression of miR-373 downregulated expression levels of microtubule-associated protein 1A/1B-light chain 3 (LC3)-II, Beclin-1, and promoted P62 expression on mRNA and protein levels. After miR-373 knockdown, all indexes of apoptosis and autophagy mentioned above were reversed. Luciferase activity was decreased after cotransfection of miR-373 mimic and wild-type ULK1 vector. Also, miR-373 overexpression inhibited ULK1 expression. Importantly, overexpression of miR-373 weakened expressions of ULK1, LC3, Beclin-1, and Bcl-2, and enhanced expressions of P62, Bax, Caspase-3, and Caspase-9. miR-373 mimic treatment and subsequent ULK1 overexpression, induced reverse regulation in expressions of these proteins, compared with overexpression of miR-373 only. miR-373 targeted ULK1 to initiate inhibition of autophagy and subsequent promotion of apoptosis in cholangiocarcinoma cells.
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Affiliation(s)
- Pin Lv
- Department of Hepatobiliary Surgery, Hunan Provincial People's Hospital, The First Affiliated Hospital of Hunan Normal University, Changsha, Hunan Province, People's Republic of China.,Research Laboratory of Biliary Diseases, Hunan Provincial People's Hospital, The First Affiliated Hospital of Hunan Normal University, Changsha, Hunan Province, People's Republic of China
| | - Yi-Fan Luo
- Department of Hepatobiliary Surgery, Hunan Provincial People's Hospital, The First Affiliated Hospital of Hunan Normal University, Changsha, Hunan Province, People's Republic of China.,Research Laboratory of Biliary Diseases, Hunan Provincial People's Hospital, The First Affiliated Hospital of Hunan Normal University, Changsha, Hunan Province, People's Republic of China
| | - Wen-Yi Zhou
- Department of Hepatobiliary Surgery, Hunan Provincial People's Hospital, The First Affiliated Hospital of Hunan Normal University, Changsha, Hunan Province, People's Republic of China.,Research Laboratory of Biliary Diseases, Hunan Provincial People's Hospital, The First Affiliated Hospital of Hunan Normal University, Changsha, Hunan Province, People's Republic of China
| | - Ben Liu
- Department of Hepatobiliary Surgery, Hunan Provincial People's Hospital, The First Affiliated Hospital of Hunan Normal University, Changsha, Hunan Province, People's Republic of China.,Research Laboratory of Biliary Diseases, Hunan Provincial People's Hospital, The First Affiliated Hospital of Hunan Normal University, Changsha, Hunan Province, People's Republic of China
| | - Zheng Zhou
- Department of Hepatobiliary Surgery, Hunan Provincial People's Hospital, The First Affiliated Hospital of Hunan Normal University, Changsha, Hunan Province, People's Republic of China
| | - Yong-Zhong Shi
- Institute of Clinical Medicine, Hunan Provincial People's Hospital, The First Affiliated Hospital of Hunan Normal University, Changsha, Hunan Province, People's Republic of China
| | - Ren Huang
- Institute of Clinical Medicine, Hunan Provincial People's Hospital, The First Affiliated Hospital of Hunan Normal University, Changsha, Hunan Province, People's Republic of China
| | - Chuang Peng
- Department of Hepatobiliary Surgery, Hunan Provincial People's Hospital, The First Affiliated Hospital of Hunan Normal University, Changsha, Hunan Province, People's Republic of China.,Research Laboratory of Biliary Diseases, Hunan Provincial People's Hospital, The First Affiliated Hospital of Hunan Normal University, Changsha, Hunan Province, People's Republic of China
| | - Zi-Li He
- Department of Hepatobiliary Surgery, Hunan Provincial People's Hospital, The First Affiliated Hospital of Hunan Normal University, Changsha, Hunan Province, People's Republic of China.,Laboratory of Hepatobiliary Molecular Oncology, Hunan Provincial People's Hospital, The First Affiliated Hospital of Hunan Normal University, Changsha, Hunan Province, People's Republic of China
| | - Jun Wang
- Department of Hepatobiliary Surgery, Hunan Provincial People's Hospital, The First Affiliated Hospital of Hunan Normal University, Changsha, Hunan Province, People's Republic of China
| | - Hong-Hui Zhang
- Department of Hepatobiliary Surgery, Hunan Provincial People's Hospital, The First Affiliated Hospital of Hunan Normal University, Changsha, Hunan Province, People's Republic of China
| | - Sheng-Dan Nie
- Institute of Clinical Medicine, Hunan Provincial People's Hospital, The First Affiliated Hospital of Hunan Normal University, Changsha, Hunan Province, People's Republic of China
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16
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Vannas M, Färkkilä M, Sintonen H, Åberg F, Isoniemi H. Health-related quality of life before and after liver transplantation in patients with primary sclerosing cholangitis. Scand J Gastroenterol 2020; 55:347-353. [PMID: 32191135 DOI: 10.1080/00365521.2020.1725106] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Background and aims: Liver transplantation (LTx) remains the only curative treatment in patients with primary sclerosing cholangitis (PSC) and liver failure. In Helsinki we have also performed pre-emptive LTx in PSC patients without liver insufficiency but considered to have a high risk for cholangiocarcinoma. The present study evaluates the possible differences in health-related quality of life (HRQoL) in these two PSC groups before and after LTx.Methods: The total study population was 48 patients, 16 were transplanted due to increased risk of cholangiocarcinoma without liver insufficiency (the premalignant group) and 32 patients with end-stage liver disease (the symptomatic group).Results: HRQoL remained good after LTx in the premalignant group, and this difference was also clinically important compared with the symptomatic group, although not statistically significant. Both groups had slightly lower mean HRQoL scores after LTx than the age- and gender-standardized general population, and this difference was not clinically important in either group and statistically significant only in the symptomatic group.Conclusions: HRQoL does not decrease markedly after LTx in the premalignant PSC group, and this group does cope better than the symptomatic PSC group. After LTx, mean HRQoL of the premalignant group stays close to that of the age- and gender-standardized general population.
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Affiliation(s)
- Marko Vannas
- Transplantation and Liver Surgery, Abdominal Center, Helsinki University Hospital, Helsinki, Finland
| | - Martti Färkkilä
- Clinic of Gastroenterology, University of Helsinki, Helsinki University Hospital, Helsinki, Finland
| | - Harri Sintonen
- Department of Public Health, University of Helsinki, Helsinki, Finland
| | - Fredrik Åberg
- Transplantation and Liver Surgery, Abdominal Center, Helsinki University Hospital, Helsinki, Finland.,Transplant Institute, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Helena Isoniemi
- Transplantation and Liver Surgery, Abdominal Center, Helsinki University Hospital, Helsinki, Finland
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17
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Chascsa DM, Lindor KD. Cancer risk, screening and surveillance in primary sclerosing cholangitis. MINERVA GASTROENTERO 2019; 65:214-228. [DOI: 10.23736/s1121-421x.19.02586-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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18
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Tenca A, Mustonen H, Lind K, Lantto E, Kolho KL, Boyd S, Arola J, Jokelainen K, Färkkilä M. The role of magnetic resonance imaging and endoscopic retrograde cholangiography in the evaluation of disease activity and severity in primary sclerosing cholangitis. Liver Int 2018; 38:2329-2339. [PMID: 29901259 DOI: 10.1111/liv.13899] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/25/2017] [Accepted: 05/29/2018] [Indexed: 02/13/2023]
Abstract
BACKGROUND & AIMS Endoscopic retrograde cholangiography (ERCP) has been considered the gold standard for the diagnosis and follow-up of primary sclerosing cholangitis, but it has been replaced by less invasive magnetic resonance imaging and cholangiopancreatography (MRI-MRCP). However, the role of these two techniques in the evaluation of disease activity and severity needs to be elucidated. METHODS Patients with primary sclerosing cholangitis (n: 48, male 31, median age: 35.7; 28.0-44.2) who underwent ERCP and MRI-MRCP within ±3 months for diagnosis or follow-up, were reviewed. ERCP and MRI-MRCP images were scored using the modified Amsterdam score. Serum and biliary cytology markers of disease activity and severity were related to the imaging findings. Agreement on the assessment of the ERCP/MRCP score was calculated by kappa-statistics. Spearman's ρ was calculated when appropriate. RESULTS The agreement between ERCP and MRCP in scoring bile duct changes for disease severity was only moderate (weighted kappa: 0.437; 95% CI: 0.211-0.644 for intra- and 0.512; 95% CI: 0.303-0.720 for extra-hepatic bile ducts). ERCP and MRCP intra-hepatic scores were associated to the surrogate marker alkaline phosphatase (P = .02 for both). A weak correlation between MRCP score for extra-hepatic bile ducts and liver transplantation/death was found (Spearman's ρ = .362, 95% CI: 0.080-0.590, P = .022). A weak correlation between intra- (Spearman's ρ = .322, 95% CI: 0.048-0.551, P = .022) and extra-hepatic (Spearman`s ρ = .319, 95% CI: 0.045-0.549, P = .025) peribiliary enhancement on contrast-enhanced MRI and severity of biliary cytologic classification was found. CONCLUSIONS The overall agreement between ERCP and MRI-MRCP in assessing disease severity was moderate for intra- and extra-hepatic bile ducts. MRI-MRCP seems to have a minor role as surrogate marker of disease activity and progression in PSC.
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Affiliation(s)
- Andrea Tenca
- Department of Medicine, Clinic of Gastroenterology, Helsinki University and Helsinki University Hospital, Helsinki, Finland
| | - Harri Mustonen
- Department of Surgery, Helsinki University, Helsinki, Finland
| | - Kati Lind
- Medical Imaging Centre, Helsinki University and Helsinki University Hospital, Helsinki, Finland
| | - Eila Lantto
- Medical Imaging Centre, Helsinki University and Helsinki University Hospital, Helsinki, Finland
| | - Kaija-Leena Kolho
- Department of Paediatric Gastroenterology, Helsinki University and Children's Hospital, Helsinki, Finland
| | - Sonja Boyd
- Department of Pathology, Helsinki University and Helsinki University Hospital, Helsinki, Finland
| | - Johanna Arola
- Department of Pathology, Helsinki University and Helsinki University Hospital, Helsinki, Finland
| | - Kalle Jokelainen
- Department of Medicine, Clinic of Gastroenterology, Helsinki University and Helsinki University Hospital, Helsinki, Finland
| | - Martti Färkkilä
- Department of Medicine, Clinic of Gastroenterology, Helsinki University and Helsinki University Hospital, Helsinki, Finland
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Boyd S, Vannas M, Jokelainen K, Isoniemi H, Mäkisalo H, Färkkilä MA, Arola J. Suspicious brush cytology is an indication for liver transplantation evaluation in primary sclerosing cholangitis. World J Gastroenterol 2017; 23:6147-6154. [PMID: 28970730 PMCID: PMC5597506 DOI: 10.3748/wjg.v23.i33.6147] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/21/2017] [Revised: 04/16/2017] [Accepted: 06/19/2017] [Indexed: 02/06/2023] Open
Abstract
AIM To investigate markers for high-grade dysplasia for the optimal timing of liver transplantation in patients with primary sclerosing cholangitis (PSC).
METHODS Earlier data support a dysplasia-carcinoma sequence, even low- to high-grade dysplasia, in PSC-associated cholangiocarcinoma (CCA). Surveillance using endoscopic retrograde cholangiography (ERC) and brush cytology aims to detect cases of biliary dysplasia, and liver transplantation is an option in cases with suspicion of malignancy in brushing. This study investigated markers to identify patients with high-grade biliary dysplasia for optimal timing in early liver transplantation. Patients undergoing surveillance using ERC and brush cytology during 2008-2014 and who were diagnosed with biliary dysplasia in explanted liver or CCA until February 2016 were included in the study. Demographic data, cholangiography findings, laboratory values, cytological morphology and DNA ploidy were analysed.
RESULTS Thirty PSC patients had biliary neoplasia in the explanted liver during the study period. Sixteen of these patients had low-grade dysplasia, 10 patients had high-grade dysplasia, and 4 patients had CCA. Fifteen PSC patients diagnosed with CCA were not transplanted. Patients with low-grade dysplasia were younger. Alkaline phosphatase or carcinoembryonic antigen values did not differ between groups during surveillance, but carbohydrate antigen 19-9 was higher in CCA patients. No difference in PSC duration, ERC scores, suspicious cytology, or ploidy analysis was found between groups. No difference was observed between fibrosis stage in explanted livers. Low- and high-grade dysplasia could not be differentiated before liver transplantation based on liver enzymes, tumour markers, ERC scores, brush cytology or DNA ploidy.
CONCLUSION Repeated suspicion of neoplasia in brush cytology should be an indication for evaluations of liver transplantation prior to the development of CCA.
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Affiliation(s)
- Sonja Boyd
- Department of Pathology, University of Helsinki and Helsinki University Hospital, HUSLAB, 00029 Helsinki, Finland
| | - Marko Vannas
- Transplantation and Liver Surgery Clinic, University of Helsinki and Helsinki University Hospital, 00029 Helsinki, Finland
| | - Kalle Jokelainen
- Clinic of Gastroenterology, University of Helsinki and Helsinki University Hospital, 00029 Helsinki, Finland
| | - Helena Isoniemi
- Transplantation and Liver Surgery Clinic, University of Helsinki and Helsinki University Hospital, 00029 Helsinki, Finland
| | - Heikki Mäkisalo
- Transplantation and Liver Surgery Clinic, University of Helsinki and Helsinki University Hospital, 00029 Helsinki, Finland
| | - Martti A Färkkilä
- Clinic of Gastroenterology, University of Helsinki and Helsinki University Hospital, 00029 Helsinki, Finland
| | - Johanna Arola
- Department of Pathology, University of Helsinki and Helsinki University Hospital, HUSLAB, 00029 Helsinki, Finland
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Pereira P, Aho V, Arola J, Boyd S, Jokelainen K, Paulin L, Auvinen P, Färkkilä M. Bile microbiota in primary sclerosing cholangitis: Impact on disease progression and development of biliary dysplasia. PLoS One 2017; 12:e0182924. [PMID: 28796833 PMCID: PMC5552186 DOI: 10.1371/journal.pone.0182924] [Citation(s) in RCA: 62] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2017] [Accepted: 07/26/2017] [Indexed: 02/07/2023] Open
Abstract
Objective The etiopathogenesis and risk for development of biliary neoplasia in primary sclerosing cholangitis (PSC) are largely unknown. Microbes or their metabolites have been suggested to play a role. To explore this potential microbial involvement, we evaluated the differences in biliary microbiota in PSC patients at an early disease stage without previous endoscopic retrograde cholangiography (ERC) examinations, advanced disease stage, and with biliary dysplasia or cholangiocarcinoma. Design Bile samples from the common bile duct were collected from 46 controls and 80 patients with PSC during ERC (37 with early disease, 32 with advanced disease, and 11 with biliary dysplasia). DNA isolation, amplification, and Illumina MiSeq sequencing were performed for the V1-V3 regions of the bacterial 16S rRNA gene. Results The most common phyla found were Bacteroidetes, Firmicutes, Proteobacteria, Fusobacteria, and Actinobacteria. The most common families were Prevotellaceae, Streptococcaceae, Veillonellaceae, Fusobacteriaceae, and Pasteurellaceae, and the most common genera were Prevotella, Streptococcus, Veillonella, Fusobacterium, and Haemophilus. The bacterial communities of non-PSC subjects and early stage PSC patients were similar. Alpha diversity was lower in patients with biliary dysplasia/cholangiocarcinoma than in other groups. An increase in Streptococcus abundance was positively correlated with the number of ERC examinations. Streptococcus abundance was also positively correlated with an increase in disease severity, even after controlling for the number of ERC examinations. Conclusions Our findings suggest that the aetiology of PSC is not associated with changes in bile microbial communities, but the genus Streptococcus may play a pathogenic role in the progression of the disease.
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Affiliation(s)
- Pedro Pereira
- Institute of Biotechnology, University of Helsinki, Helsinki, Finland
- * E-mail:
| | - Velma Aho
- Institute of Biotechnology, University of Helsinki, Helsinki, Finland
| | - Johanna Arola
- University of Helsinki, Department of Pathology, Helsinki University Hospital, Helsinki, Finland
| | - Sonja Boyd
- University of Helsinki, Department of Pathology, Helsinki University Hospital, Helsinki, Finland
| | - Kalle Jokelainen
- University of Helsinki and Clinic of Gastroenterology, Helsinki University Hospital, Helsinki, Finland
| | - Lars Paulin
- Institute of Biotechnology, University of Helsinki, Helsinki, Finland
| | - Petri Auvinen
- Institute of Biotechnology, University of Helsinki, Helsinki, Finland
| | - Martti Färkkilä
- University of Helsinki and Clinic of Gastroenterology, Helsinki University Hospital, Helsinki, Finland
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Chapman RW, Williamson KD. Are Dominant Strictures in Primary Sclerosing Cholangitis a Risk Factor for Cholangiocarcinoma? ACTA ACUST UNITED AC 2017; 16:124-129. [PMID: 28706774 PMCID: PMC5486581 DOI: 10.1007/s11901-017-0341-2] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
PURPOSE OF REVIEW Cholangiocarcinoma is a devastating, unpredictable complication of large duct primary sclerosing cholangitis (PSC), which occurs in 5-15% of patients. The aim of this review is to discuss whether dominant strictures (DS) occurring in the larger bile ducts in PSC are a risk factor for the development of cholangiocarcinoma. RECENT FINDINGS The development of DS is related to specific genetic polymorphisms affecting the innate immune system and the microbiome. In a recent study, the mean survival of PSC patients with DS was much worse (13.7 years) than for those without a DS (23 years). Survival difference was related to a 26% risk of cholangiocarcinoma, which developed only in those with DS. Half of the patients with cholangiocarcinoma presented within 4 months of the diagnosis of PSC. In another study, the risk of developing cholangiocarcinoma was directly related to the presence of underlying IBD, although this remains controversial. Efforts are being made towards surveying for cholangiocarcinoma including magnetic resonance imaging, endoscopic surveillance and serum tumour markers, but so far, an effective surveillance strategy has not been identified. DS should be treated endoscopically in the setting of symptoms, and there is limited evidence to suggest this may impact protectively on progression to cholangiocarcinoma. SUMMARY It is established that the presence of symptomatic DS occurring in the larger bile ducts in PSC can be the first presentation of cholangiocarcinoma. There is an increasing body of evidence that even when proven to be benign, dominant biliary strictures predispose to the future development of cholangiocarcinoma. Regular surveillance should be targeted at this selected high-risk group of PSC patients.
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Affiliation(s)
- Roger W Chapman
- Nuffield Department of Medicine, Oxford University, Oxford, UK.,Translational Gastroenterology Unit, Oxford University Hospital, Oxford, UK.,Translational Gastroenterology Unit, John Radcliffe Hospital, Headley Way, Headington, Oxford, OX3 9DU UK
| | - Kate D Williamson
- Nuffield Department of Medicine, Oxford University, Oxford, UK.,Translational Gastroenterology Unit, Oxford University Hospital, Oxford, UK
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