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1.
Eur J Intern Med ; 107: 86-92, 2023 01.
Article En | MEDLINE | ID: mdl-36396524

BACKGROUND & AIMS: The incidence of chronic hepatitis B (CHB) is declining due to successful implementation of vaccination programs and widespread use of antiviral therapy. We aimed to study time-trends in disease characteristics and comorbidities in newly referred CHB patients. METHODS: We collected information on hepatitis B virus (HBV) related disease characteristics (including hepatitis B e-antigen (HBeAg) status, viremia, stage of liver fibrosis and indication for treatment and/or hepatocellular carcinoma (HCC) surveillance) and presence of comorbidities in all CHB patients referred to our center from 1980 through 2020. Patient characteristics were compared according to referral date (before 2000, between 2000 and 2010 and after 2010). RESULTS: We identified 1515 eligible patients. Patients referred after 2010 were older (36 versus 34 years, p < 0.001), more often non-Caucasian (82.3% versus 55.0%, p < 0.001) and more frequently HBeAg negative (81.5% versus 49.8%, p < 0.001) when compared to patients referred before 2000. Adjusted for ethnicity, sex and age, patients referred after 2010 were less likely to have significant fibrosis (adjusted odds ratio [aOR]:0.178, p < 0.001) or indication for antiviral therapy (aOR:0.342, p < 0.001) but were more likely to be affected by the metabolic syndrome (aOR:1.985, p = 0.013), hepatic steatosis (aOR:1.727, p < 0.001) and metabolic dysfunction associated fatty liver disease (MAFLD) (aOR:1.438, p = 0.013). CONCLUSIONS: The characteristics of the CHB populations are changing. Newly referred patients are older, have less active HBV related liver disease but are more likely to be co-affected by MAFLD. These findings provide guidance for adequate allocation of resources to cope with the changing characteristics of the CHB population. FUNDING: Foundation for Liver and Gastrointestinal Research Rotterdam, the Netherlands and Gilead Sciences.


Carcinoma, Hepatocellular , Hepatitis B, Chronic , Liver Neoplasms , Non-alcoholic Fatty Liver Disease , Humans , Hepatitis B, Chronic/epidemiology , Hepatitis B, Chronic/drug therapy , Carcinoma, Hepatocellular/epidemiology , Carcinoma, Hepatocellular/complications , Hepatitis B e Antigens , Liver Neoplasms/epidemiology , Liver Neoplasms/complications , Hepatitis B virus , Liver Cirrhosis/epidemiology , Liver Cirrhosis/complications , Non-alcoholic Fatty Liver Disease/epidemiology , Non-alcoholic Fatty Liver Disease/drug therapy , Antiviral Agents/therapeutic use , DNA, Viral
2.
Clin Res Hepatol Gastroenterol ; 46(7): 101948, 2022.
Article En | MEDLINE | ID: mdl-35659604

We present a 49 year old female patient with Crohn's disease (CD) in remission on vedolizumab therapy who experienced a symptomatic, though benign, course of acute hepatitis E. Routine blood tests showed substantial elevation of liver enzymes and polymerase chain reaction (PCR) testing confirmed hepatitis E virus (HEV) infection. Vedolizumab therapy was paused, liver enzymes improved three weeks after infection and normalized after six months. The patient recovered completely from mild symptoms. This case shows that hepatitis E is a potential cause of acute hepatitis during vedolizumab therapy, and in this case the infection has run a benign course.


Colitis, Ulcerative , Crohn Disease , Hepatitis E , Antibodies, Monoclonal, Humanized/adverse effects , Colitis, Ulcerative/drug therapy , Crohn Disease/drug therapy , Female , Gastrointestinal Agents/adverse effects , Hepatitis E/diagnosis , Hepatitis E/drug therapy , Humans , Middle Aged , Treatment Outcome
3.
Langenbecks Arch Surg ; 406(1): 219-225, 2021 Feb.
Article En | MEDLINE | ID: mdl-33237442

PURPOSE: To establish optimal management of patients with an umbilical hernia complicated by liver cirrhosis and ascites. METHODS: Patients with an umbilical hernia and liver cirrhosis and ascites were randomly assigned to receive either elective repair or conservative treatment. The primary endpoint was overall morbidity related to the umbilical hernia or its treatment after 24 months of follow-up. Secondary endpoints included the severity of these hernia-related complications, quality of life, and cumulative hernia recurrence rate. RESULTS: Thirty-four patients were included in the study. Sixteen patients were randomly assigned to elective repair and 18 to conservative treatment. After 24 months, 8 patients (50%) assigned to elective repair compared to 14 patients (77.8%) assigned to conservative treatment had a complication related to the umbilical hernia or its repair. A recurrent hernia was reported in 16.7% of patients who underwent repair. For the secondary endpoint, quality of life through the physical (PCS) and mental component score (MCS) showed no significant differences between groups at 12 months of follow-up (mean difference PCS 11.95, 95% CI - 0.87 to 24.77; MCS 10.04, 95% CI - 2.78 to 22.86). CONCLUSION: This trial could not show a relevant difference in overall morbidity after 24 months of follow-up in favor of elective umbilical hernia repair, because of the limited number of patients included. However, elective repair of umbilical hernia in patients with liver cirrhosis and ascites appears feasible, nudging its implementation into daily practice further, particularly for patients experiencing complaints. TRIAL REGISTRATION: Clinicaltrials.gov , NCT01421550, on 23 August 2011.


Hernia, Umbilical , Ascites/etiology , Ascites/therapy , Conservative Treatment , Hernia, Umbilical/surgery , Herniorrhaphy/adverse effects , Humans , Liver Cirrhosis/complications , Liver Cirrhosis/surgery , Quality of Life , Recurrence
4.
Neth J Med ; 78(6): 376-380, 2020 12.
Article En | MEDLINE | ID: mdl-33380535

BACKGROUND: In HIV-infected patients, the immunogenicity of hepatitis B vaccines is impaired. In this randomised controlled study (RCT), we investigated the effect of Fendrix® versus double-dose Engerix® vaccination in previously non-responsive HIV-infected subjects. METHODS: Patients included those who were HIV-infected and non-responders to a primary (single-dose hepatitis B (HBV) vaccination) and a subsequent double-dose HBV revaccination schedule. Subjects were randomised 1:1 to receive Fendrix® (t = 0, 4, 8, 24 weeks) or double-dose Engerix® (t = 0, 4, 24 weeks) vaccinations. Primary efficacy, defined as anti-HBs response ≥ 10 IU/l, was evaluated at week 28 in both study arms. RESULTS: A subset of 48 patients non-responsive to HBV vaccination was selected, from a cohort of patients at our institution, who underwent HBV vaccination unsuccessfully either in a previous RCT or through standard care. The anti-HBs ≥ 10 IU/l response rate at week 28 in the Fendrix® arm and the Engerix® arm were 85.7% and 65.0%, respectively (p = 0.09). There was no significant difference between the two used vaccine types in the anti-HBs levels reached. In our institution, the overall response rate after initial standard-dose vaccination schedule and double-dose revaccination in our cohort was 75%. In this study, combining the effects of Fendrix and Engerix resulted in a 75% response rate in the 25% remaining non-responders on initial and double-dose revaccination series. This yielded an absolute 19% increase and an overall response to HBV vaccination in HIV-infected patients of around 94% in our cohort. CONCLUSION: These results together, suggest that continuing HBV vaccination in non-responders to a first course of single-dose vaccine and a double-dose revaccination scheme is worth the effort. No superiority of one of the investigated hepatitis B vaccines was shown in this cohort but an appropriate number of patients needed to achieve reliable answers was not achieved.


HIV Infections , Hepatitis B Vaccines , Hepatitis B Antibodies , Humans , Vaccination
5.
Br J Surg ; 106(10): 1362-1371, 2019 09.
Article En | MEDLINE | ID: mdl-31313827

BACKGROUND: Hepatocellular adenoma (HCA) larger than 5 cm in diameter has an increased risk of haemorrhage and malignant transformation, and is considered an indication for resection. As an alternative to resection, transarterial embolization (TAE) may play a role in prevention of complications of HCA, but its safety and efficacy are largely unknown. The aim of this study was to assess outcomes and postembolization effects of selective TAE in the management of HCA. METHODS: This retrospective, multicentre cohort study included patients aged at least 18 years, diagnosed with HCA and treated with TAE. Patient characteristics, 30-day complications, tumour size before and after TAE, symptoms before and after TAE, and need for secondary interventions were analysed. RESULTS: Overall, 59 patients with a median age of 33.5 years were included from six centres; 57 of the 59 patients were women. Median tumour size at time of TAE was 76 mm. Six of 59 patients (10 per cent) had a major complication (cyst formation or sepsis), which could be resolved with minimal therapy, but prolonged hospital stay. Thirty-four patients (58 per cent) were symptomatic at presentation. There were no significant differences in symptoms before TAE and symptoms evaluated in the short term (within 3 months) after TAE (P = 0·134). First follow-up imaging was performed a median of 5·5 months after TAE and showed a reduction in size to a median of 48 mm (P < 0·001). CONCLUSION: TAE is safe, can lead to adequate size reduction of HCA and, offers an alternative to resection in selected patients.


Adenoma, Liver Cell/therapy , Embolization, Therapeutic/methods , Liver Neoplasms/therapy , Adenoma, Liver Cell/pathology , Adult , Cell Transformation, Neoplastic/pathology , Embolization, Therapeutic/adverse effects , Female , Humans , Length of Stay/statistics & numerical data , Liver Neoplasms/pathology , Male , Retrospective Studies , Treatment Outcome , Tumor Burden
6.
ACG Case Rep J ; 6(12): e00243, 2019 Dec.
Article En | MEDLINE | ID: mdl-32042838

Tocilizumab is a humanized monoclonal antibody targeting the interleukin-6 receptor that is frequently used for the treatment of refractory rheumatoid arthritis. Since patients with hepatitis B virus (HBV) infection were excluded from pivotal trials, the risk of HBV reactivation with this novel drug class remains uncertain. We present the first case of tocilizumab-associated HBV reactivation resulting in fulminant hepatic failure and a need for liver transplant. Our findings underscore the need for prophylactic antiviral therapy in patients being treated with novel immunosuppressive agents.

8.
Ned Tijdschr Geneeskd ; 162: D2159, 2018.
Article Nl | MEDLINE | ID: mdl-29519259

OBJECTIVE: To calculate the chance of receiving a liver transplant for patients on the liver transplant waiting list in the Netherlands. DESIGN: Retrospective cohort research. METHOD: Data of all patients in the Netherlands on the waiting list for liver transplantation, from the introduction of the model of end-stage liver disease score on 16th December 2006 through to 31st December 2013 were collected. Survival analysis was computed with competing risk analyses. RESULTS: A total of 851 patients were listed, of whom 236 patients with hepatocellular carcinoma, 147 patients with primary sclerosing cholangitis, 142 patients with post-alcoholic liver disease, 93 patients with metabolic liver disease, 78 with viral hepatitis and 155 patients listed for other indications. The median waiting time till transplantation was 196 days. The chance to be transplanted at two years from listing was 65% and the risk of death was 17%. Patients with metabolic liver disease had the highest chance of undergoing liver transplantation. Patients with viral hepatitis were at highest risk of death while on the list, as well as having the lowest chance of undergoing liver transplantation. CONCLUSION: Our study shows a 65% chance of getting transplanted in time after a median waiting time of 6 months in the Netherlands. Sadly, 1 in 6 patients die before liver transplantation can be performed, with the highest risk of death occurring in patients with viral hepatitis.


End Stage Liver Disease , Liver Transplantation , Waiting Lists/mortality , End Stage Liver Disease/epidemiology , End Stage Liver Disease/surgery , Humans , Liver Transplantation/methods , Liver Transplantation/statistics & numerical data , Needs Assessment , Netherlands/epidemiology , Retrospective Studies , Risk Assessment , Survival Analysis
9.
Br J Clin Pharmacol ; 84(6): 1187-1197, 2018 06.
Article En | MEDLINE | ID: mdl-29399852

AIMS: Electronic prescribing systems may improve medication safety, but only when used appropriately. The effects of task analysis-based training on clinical, learning and behavioural outcomes were evaluated in the outpatient setting, compared with the usual educational approach. METHODS: This was a multicentre, cluster randomized trial [EDUCATional intervention for IT-mediated MEDication management (MEDUCATE trial)], with physicians as the unit of analysis. It took place in the outpatient clinics of two academic hospitals. Participants comprised specialists and residents (specialty trainees, in the UK) and their patients. Training took the form of a small-group session and an e-learning. The primary outcome was the proportion of medication discrepancies per physician, measured as discrepancies between medications registered by physicians in the electronic prescribing system and those reported by patients. Clinical consequences were estimated by the proportion of patients per physician with at least one missed drug-drug interaction with the potential for causing adverse drug events. A questionnaire assessed physicians' knowledge and skills. RESULTS: Among 124 participating physicians, primary outcome data for 115 (93%) were available. A total of 1094 patients were included. A mean of 48% of registered medications per physician were discrepant with the medications that their patients reported in both groups (P = 0.14). Due to registration omissions, a mean of 4% of patients per physician had one or more missed drug-drug interactions with the potential to cause a clinically relevant adverse drug event in the intervention group, and 7% in controls (P = 0.11). The percentages of correct answers on the knowledge and skills test were higher in the intervention group (57%) compared with controls (51%; P = 0.01). CONCLUSION: The training equipped outpatient physicians with the knowledge and skills for appropriate use of electronic prescribing systems, but had no effect on medication discrepancies.


Ambulatory Care , Attitude of Health Personnel , Clinical Competence , Education, Medical, Continuing/methods , Electronic Prescribing , Health Knowledge, Attitudes, Practice , Inservice Training/methods , Learning , Medical Order Entry Systems , Practice Patterns, Physicians' , Academic Medical Centers , Adult , Aged , Drug Interactions , Female , Humans , Inappropriate Prescribing/prevention & control , Male , Middle Aged , Netherlands , Polypharmacy
11.
Br J Surg ; 104(12): 1695-1703, 2017 Nov.
Article En | MEDLINE | ID: mdl-28857134

BACKGROUND: Hepatocellular adenoma (HCA) is a benign liver tumour that may be complicated by bleeding or malignant transformation. Present guidelines advise cessation of oral contraceptives and surgical resection if the lesion is still larger than 5 cm at 6 months after diagnosis. The aim of this study was to evaluate whether this 6-month interval is sufficient to expect regression of a large HCA to 5 cm or smaller. METHODS: This retrospective cohort study included all patients with an HCA larger than 5 cm diagnosed between 1999 and 2015 with follow-up of at least 6 months. Medical records were reviewed for patient characteristics, clinical presentation, lesion characteristics, management and complications. Differences in characteristics were assessed between patients kept under surveillance and those who underwent treatment for an HCA larger than 5 cm. RESULTS: Some 194 patients were included, of whom 192 were women. Eighty-six patients were kept under surveillance and 108 underwent HCA treatment. Patients in the surveillance group had a significantly higher BMI (P = 0·029), smaller baseline HCA diameter (P < 0·001), more centrally located lesions (P < 0·001) and were more likely to have multiple lesions (P = 0·001) than those in the treatment group. There were no significant differences in sex, age at diagnosis, symptoms, complication rates and HCA subtype distribution. Time-to-event analysis in patients managed conservatively and those still undergoing treatment more than 6 months after diagnosis showed that 69 of 118 HCAs (58·5 per cent) regressed to 5 cm or smaller after a median of 104 (95 per cent c.i. 80-128) weeks. Larger HCAs took longer to regress (P < 0·001). No complications were documented during follow-up. CONCLUSION: This study suggests that a 6-month cut-off point for assessment of regression of HCA larger than 5 cm to no more than 5 cm is too early. As no complications were documented during follow-up, the cut-off point in women with typical, non-ß-catenin-activated HCA could be prolonged to 12 months, irrespective of baseline diameter.


Adenoma, Liver Cell/surgery , Liver Neoplasms/surgery , Adenoma, Liver Cell/pathology , Adult , Body Mass Index , Contraceptives, Oral , Female , Follow-Up Studies , Humans , Liver Neoplasms/pathology , Male , Middle Aged , Practice Guidelines as Topic , Retrospective Studies , Time Factors , Withholding Treatment
12.
Ned Tijdschr Geneeskd ; 161: D1387, 2017.
Article Nl | MEDLINE | ID: mdl-28589869

BACKGROUND: Hepatopulmonary syndrome is a severe complication of liver disease, with greatly increased mortality. The syndrome is characterized by increased blood-flow, intrapulmonary vasodilatation and angiogenesis, leading to effects including the formation of shunts. This leads to a decrease in arterial oxygen pressure. Liver transplantation is the only effective treatment. CASE DESCRIPTION: A 74-year-old woman with cirrhosis of the liver attended the pulmonary outpatients' clinic with progressive dyspnoea, which worsened if she sat upright from a lying position (platypnoea). Contrast echocardiography confirmed the diagnosis 'hepatopulmonary syndrome'. The patient was not eligible for liver transplantation. She was given oxygen therapy and died from decompensated cirrhosis of the liver eighteen months later. CONCLUSION: Early recognition of hepatopulmonary syndrome is important, because patients may be given priority for liver transplantation. Contrast echocardiography is indicated in patients with liver disease and suffering from hypoxaemia for which there is no other explanation, to reveal the presence of intrapulmonary shunt.


Hepatopulmonary Syndrome/diagnosis , Liver Cirrhosis/diagnosis , Liver Transplantation , Aged , Dyspnea , Female , Humans , Hypoxia
13.
J Viral Hepat ; 24(11): 1023-1031, 2017 11.
Article En | MEDLINE | ID: mdl-28544398

An abundance of noninvasive scores have been associated with fibrosis and hepatocellular carcinoma (HCC) development. We aimed to compare the prognostic ability of these scores in relation to liver histology in chronic hepatitis B (CHB) patients. Liver biopsies from treatment-naïve CHB patients at one tertiary care centre were scored by a single hepato-pathologist. Laboratory values at liver biopsy were used to calculate the PAGE-B, REACH-B, GAG-HCC, CU-HCC and FIB-4 scores. Any clinical event was defined as HCC development, liver failure, transplantation and mortality. HCC and mortality data were obtained from national database registries. Of 557 patients, 40 developed a clinical event within a median follow-up of 10.1 (IQR 5.7-15.9) years. The PAGE-B score predicted any clinical event (C-statistic.86, 95% CI: 0.80-0.92), HCC development (C-statistic .91) and reduced transplant-free survival (C-statistic .83) with good accuracy, also when stratified by ethnicity, antiviral therapy after biopsy or advanced fibrosis. The C-statistics (95% CI) of the REACH-B, GAG-HCC, CU-HCC and FIB-4 scores for any event were .70 (0.59-0.81), .82 (0.75-0.89), .73 (0.63-0.84) and.79 (0.69-0.89), respectively. The PAGE-B event risk assessment improved modestly when combined with the Ishak fibrosis stage (C-statistic .87, 95% CI: 0.82-0.93). The PAGE-B score showed the best performance in assessing the likelihood of developing a clinical event among a diverse CHB population over 15 years of follow-up. Additional liver histological characteristics did not appear to provide a clinically significant improvement.


Hepatitis B, Chronic/epidemiology , Adult , Biomarkers , Biopsy , Cause of Death , Female , Hepatitis B, Chronic/mortality , Hepatitis B, Chronic/pathology , Humans , Kaplan-Meier Estimate , Liver/pathology , Male , Middle Aged , Netherlands/epidemiology , Outcome Assessment, Health Care , Population Surveillance , Prognosis , Retrospective Studies , Risk Assessment , Risk Factors , Time Factors , Young Adult
14.
Neth J Med ; 74(8): 330-335, 2016 Oct.
Article En | MEDLINE | ID: mdl-27762220

Accumulation of fluid in the peritoneal cavity - ascites - is commonly encountered in clinical practice. Ascites can originate from hepatic, malignant, cardiac, renal, and infectious diseases. This review discusses the current recommended diagnostic approach towards the patient with ascites and summarises future diagnostic targets.


Ascites/diagnosis , Heart Failure/diagnosis , Liver Cirrhosis/diagnostic imaging , Neoplasms/diagnosis , Pancreatic Diseases/diagnosis , Tuberculosis/diagnosis , Ascites/etiology , Ascitic Fluid/chemistry , Ascitic Fluid/cytology , Culture Techniques , Diagnosis, Differential , Heart Failure/complications , Humans , Laparoscopy , Liver Cirrhosis/complications , Neoplasms/complications , Pancreatic Diseases/complications , Paracentesis , Polymerase Chain Reaction , Practice Guidelines as Topic , Tuberculosis/complications , Ultrasonography
15.
Ned Tijdschr Geneeskd ; 160: D556, 2016.
Article Nl | MEDLINE | ID: mdl-27650020

- Hepatocellular adenomas are essentially benign tumours of the liver that occur mostly in women of reproductive age. - The four different subtypes described, which can be distinguished both radiologically and histopathologically, are: steatotic, inflammatory, ß-catenin mutated and unclassified adenomas. These subtypes differ in the risk of complications.- Contrast-enhanced liver MRI is the best method for diagnostics and characterization of hepatocellular adenomas. - Possible complications include bleeding, rupture, and malignant degeneration of the hepatocellular adenoma. These complications are rare in adenomas < 5 cm. - Men with hepatocellular adenomas are at higher risk for malignant degeneration. - In women, lifestyle changes (cessation of oral contraceptive and weight reduction) can cause regression of the adenoma, which can prevent the necessity for liver surgery. - In pregnant women there is a risk of growth of hepatocellular adenoma. It is, therefore, it is recommended to check the tumour in pregnant women every 6-12 weeks using ultrasound.


Adenoma, Liver Cell/diagnosis , Adenoma, Liver Cell/therapy , Liver Neoplasms/diagnosis , Liver Neoplasms/therapy , Adenoma, Liver Cell/complications , Female , Humans , Liver Neoplasms/complications , Male , Pregnancy , Pregnancy Complications, Neoplastic/diagnosis , Pregnancy Complications, Neoplastic/therapy
16.
Neth J Med ; 74(6): 257-61, 2016 Jul.
Article En | MEDLINE | ID: mdl-27571723

BACKGROUND: The gold standard to diagnose spontaneous bacterial peritonitis (SBP) is a polymorphonuclear neutrophil count ≥ 250 cells/µl in ascitic fluid. This test is laborious and expensive. Urine reagent strips measuring leukocyte esterase activity have been proposed as a rapid and inexpensive alternative. The aim of this study was to assess the diagnostic accuracy of the Combur reagent strip for diagnosing SBP. Furthermore the possible advantage of a photospectrometer reading over visual reading of the strip was investigated. METHODS: This prospective study includes all ascitic fluid samples of cirrhotic patients undergoing diagnostic or therapeutic paracentesis over a 12-month period. The samples were collected for the standard diagnostic work-up and in addition tested with a bedside Combur reagent strip. The strip was read visually and with an automated spectrometer. RESULTS: A total of 157 samples were obtained from 53 patients, and spontaneous bacterial peritonitis was diagnosed in 12 patients based on the ascitic polymorphonuclear neutrophil count. The sensitivity, specificity, positive predictive value and negative predictive value of the reagent strip according to the photospectrometer were 100%, 93%, 55% and 100% respectively, and 75%, 99%, 82% and 98%, respectively, for visual interpretation. The diagnostic accuracy of the photospectrometer was found to be higher than visual interpretation (p = 0.007). CONCLUSION: The diagnostic accuracy of leucocyte esterase reagent strips read out by a photospectrometer was comparable with the gold standard test and was excellent for excluding SBP. Our results support implementation of reagent strips in the diagnostic work-up of ascitic fluid.


Ascitic Fluid/chemistry , Bacterial Infections/diagnosis , Carboxylic Ester Hydrolases/metabolism , Neutrophils/cytology , Paracentesis , Peritonitis/diagnosis , Adult , Ascitic Fluid/cytology , Bacterial Infections/etiology , Bacterial Infections/metabolism , Female , Humans , Leukocyte Count , Liver Cirrhosis/complications , Male , Middle Aged , Peritonitis/etiology , Peritonitis/metabolism , Prospective Studies , Reagent Strips , Sensitivity and Specificity , Spectrophotometry
17.
Ned Tijdschr Geneeskd ; 160: D70, 2016.
Article Nl | MEDLINE | ID: mdl-27405575

- There are several regions worldwide with a high prevalence of infection with the hepatitis delta virus (HDV) in hepatitis B virus (HBV) carriers.- Chronic HDV infection is occurring with increasing frequency due to increased immigration.- HDV transmission can take place through the same routes as HBV by simultaneous infection with both viruses (co-infection) or infection of an HBV carrier with HDV (superinfection).- Delta hepatitis is considered as the most severe form of viral hepatitis with a high risk of progression to cirrhosis and hepatocellular carcinoma.- Chronic delta hepatitis is exclusively observed in patients who are HBV carriers.- Pegylated interferon is currently the only registered therapy for patients with delta hepatitis, but leads to a persistent virological response in only a minority of them, and rarely leads to a complete cure.- New antivirals, such as viral entry blockers, prenylation inhibitors and anti-sense oligonucleotides are promising and currently being investigated in phase 2 trials.


Hepatitis D/epidemiology , Hepatitis Delta Virus/pathogenicity , Superinfection , Antiviral Agents/therapeutic use , Carcinoma, Hepatocellular/virology , Carrier State , Disease Progression , Hepatitis B/complications , Hepatitis B virus , Hepatitis D/complications , Hepatitis D/therapy , Humans , Liver Cirrhosis/virology , Liver Neoplasms/virology , Prevalence
18.
Br J Cancer ; 112(12): 1911-20, 2015 Jun 09.
Article En | MEDLINE | ID: mdl-26057582

BACKGROUND: Identification of tumour antigens is crucial for the development of vaccination strategies against hepatocellular carcinoma (HCC). Most studies come from eastern-Asia, where hepatitis-B is the main cause of HCC. However, tumour antigen expression is poorly studied in low-endemic, western areas where the aetiology of HCC differs. METHODS: We constructed tissue microarrays from resected HCC tissue of 133 patients. Expression of a comprehensive panel of cancer-testis (MAGE-A1, MAGE-A3/4, MAGE-A10, MAGE-C1, MAGE-C2, NY-ESO-1, SSX-2, sperm protein 17), onco-fetal (AFP, Glypican-3) and overexpressed tumour antigens (Annexin-A2, Wilms tumor-1, Survivin, Midkine, MUC-1) was determined by immunohistochemistry. RESULTS: A higher prevalence of MAGE antigens was observed in patients with hepatitis-B. Patients with expression of more tumour antigens in general had better HCC-specific survival (P=0.022). The four tumour antigens with high expression in HCC and no, or weak, expression in surrounding tumour-free-liver tissue, were Annexin-A2, GPC-3, MAGE-C1 and MAGE-C2, expressed in 90, 39, 17 and 20% of HCCs, respectively. Ninety-five percent of HCCs expressed at least one of these four tumour antigens. Interestingly, GPC-3 was associated with SALL-4 expression (P=0.001), an oncofetal transcription factor highly expressed in embryonal stem cells. SALL-4 and GPC-3 expression levels were correlated with vascular invasion, poor differentiation and higher AFP levels before surgery. Moreover, patients who co-expressed higher levels of both GPC-3 and SALL-4 had worse HCC-specific survival (P=0.018). CONCLUSIONS: We describe a panel of four tumour antigens with excellent coverage and good tumour specificity in a western area, low-endemic for hepatitis-B. The association between GPC-3 and SALL-4 is a novel finding and suggests that GPC-3 targeting may specifically attack the tumour stem-cell compartment.


Antigens, Neoplasm/biosynthesis , Carcinoma, Hepatocellular/immunology , Liver Neoplasms/immunology , Adult , Aged , Aged, 80 and over , Antigens, Neoplasm/immunology , Carcinoma, Hepatocellular/epidemiology , Carcinoma, Hepatocellular/virology , Endemic Diseases , Europe/epidemiology , Female , Gene Expression Regulation, Neoplastic , Geography , Hepatitis B/epidemiology , Hepatitis B/immunology , Humans , Immunohistochemistry , Liver Neoplasms/epidemiology , Liver Neoplasms/virology , Male , Middle Aged , Tissue Array Analysis , Young Adult
19.
Oncogene ; 34(39): 5055-68, 2015 Sep 24.
Article En | MEDLINE | ID: mdl-25531314

Further understanding of the molecular biology and pathogenesis of hepatocellular carcinoma (HCC) is crucial for future therapeutic development. SMAD4, recognized as an important tumor suppressor, is a central mediator of transforming growth factor beta (TGFB) and bone morphogenetic protein (BMP) signaling. This study investigated the role of SMAD4 in HCC. Nuclear localization of SMAD4 was observed in a cohort of 140 HCC patients using tissue microarray. HCC cell lines were used for functional assay in vitro and in immune-deficient mice. Nuclear SMAD4 levels were significantly increased in patient HCC tumors as compared with adjacent tissues. Knockdown of SMAD4 significantly reduced the efficiency of colony formation and migratory capacity of HCC cells in vitro and was incompatible with HCC tumor initiation and growth in mice. Knockdown of SMAD4 partially conferred resistance to the anti-growth effects of BMP ligand in HCC cells. Importantly, simultaneous elevation of SMAD4 and phosphorylated SMAD2/3 is significantly associated with poor patient outcome after surgery. Although high levels of SMAD4 can also mediate an antitumor function by coupling with phosphorylated SMAD1/5/8, this signaling, however, is absent in majority of our HCC patients. In conclusion, this study revealed a highly non-canonical tumor-promoting function of SMAD4 in HCC. The drastic elevation of nuclear SMAD4 in sub-population of HCC tumors highlights its potential as an outcome predictor for patient stratification and a target for personalized therapeutic development.


Carcinogenesis , Carcinoma, Hepatocellular/pathology , Liver Neoplasms/pathology , Smad4 Protein/physiology , Animals , Cell Line, Tumor , Gene Knockdown Techniques , Gene Silencing , Humans , Mice , Phosphorylation , Smad2 Protein/metabolism , Smad3 Protein/metabolism , Smad4 Protein/genetics
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