Simultaneous Presentation of Wilson's Disease and Autoimmune Hepatitis; A Case Report and Review of Literature

A Rare Case of Untreated Wilson's Disease in a Teen With Lethal Exit: Morphological Findings From an Autopsy Study

Wilson's disease (WD) is an autosomal recessive genetic disorder caused by more than 50 different mutations in the APT7B gene. A defect in the gene product results in copper accumulation mainly in the liver, basal ganglia in the brain, cornea, kidneys, and heart, leading to dysfunction and eventually organ failure. We present a case of a 15-year-old male with a minority background who did not receive any form of treatment and ultimately succumbed to the disease. He was previously hospitalized due to suspected autoimmune-mediated acute liver failure (ALF) with positive antinuclear autoantibodies. Abdominal ultrasound revealed uneven contours and diffusely abnormal structure of the liver, interpreted as liver cirrhosis (LC), and splenomegaly. In view of WD as a potential differential diagnosis, a genetic consultation recommended the performance of genetic testing. The patient received symptomatic and corticosteroid therapy and was discharged from the hospital with improved general status. Three days later, the teen experienced deterioration and was readmitted to the hospital in a critical state. Reanimation measures had a temporary effect and ultimately exitus letalis was registered. The autopsy study revealed mixed micronodular and macronodular LC, chronic steatohepatitis, hepatosplenomegaly, ascites, icterus, gynecomastia, telangiectasias, subcutaneous hemorrhages, absence of male pattern body hair, hypogonadism, and chronic calculous cholecystitis as a result of untreated WD. Complications of the main disease appeared to be hepatorenal syndrome, severe bilateral purulent-hemorrhagic pneumonia probably with mixed etiology, acute cardiac failure with congestive changes in all internal organs, pleural and pericardial effusions, pulmonary edema, and cerebral edema with tonsillar herniation. The ATP7B gene sequencing supported the clinical diagnosis and the autopsy suspicion of WD, showing that the boy was homozygous for an H1069Q mutation.

Successful treatment of acute liver failure due to Wilson's disease: Serendipity or fortuity?

BACKGROUND

Acute liver failure (ALF) may be the first and most dramatic presentation of Wilson's disease (WD). ALF due to WD (WD-ALF) is difficult to distinguish from other causes of liver disease and is a clear indication for liver transplantation. There is no firm recommendation on specific and supportive medical treatment for this condition.

AIM

To critically evaluate the diagnostic and therapeutic management of WD-ALF patients in order to improve their survival with native liver.

METHODS

A retrospective analysis of patients with WD-ALF was conducted in two pediatric liver units from 2018 to 2023.

RESULTS

During the study period, 16 children (9 males) received a diagnosis of WD and 2 of them presented with ALF. The first was successfully treated with an unconventional combination of low doses of D-penicillamine and zinc plus steroids, and survived without liver transplant. The second, exclusively treated with supportive therapy, needed a hepatotransplant to overcome ALF.

CONCLUSION

Successful treatment of 1 WD-ALF patient with low-dose D-penicillamine and zinc plus steroids may provide new perspectives for management of this condition, which is currently only treated with liver transplantation.

Wilson's Disease-Crossroads of Genetics, Inflammation and Immunity/Autoimmunity: Clinical and Molecular Issues

Wilson's disease (WD) is a rare, autosomal recessive disorder of copper metabolism caused by pathogenic mutations in the ATP7B gene. Cellular copper overload is associated with impaired iron metabolism. Oxidative stress, cuproptosis, and ferroptosis are involved in cell death in WD. The clinical picture of WD is variable. Hepatic/neuropsychiatric/other symptoms may manifest in childhood/adulthood and even old age. It has been shown that phenotypic variability may be determined by the type of ATP7B genetic variants as well as the influence of various genetic/epigenetic, environmental, and lifestyle modifiers. In 1976, immunological abnormalities were first described in patients with WD. These included an increase in IgG and IgM levels and a decrease in the percentage of T lymphocytes, as well as a weakening of their bactericidal effect. Over the following years, it was shown that there is a bidirectional relationship between copper and inflammation. Changes in serum cytokine concentrations and the relationship between cytokine gene variants and the clinical course of the disease have been described in WD patients, as well as in animal models of this disease. Data have also been published on the occurrence of antinuclear antibodies (ANAs), antineutrophil cytoplasmic antibodies (ANCAs), anti-muscle-specific tyrosine kinase antibodies, and anti-acetylcholine receptor antibodies, as well as various autoimmune diseases, including systemic lupus erythematosus (SLE), myasthenic syndrome, ulcerative colitis, multiple sclerosis (MS), polyarthritis, and psoriasis after treatment with d-penicillamine (DPA). The occurrence of autoantibodies was also described, the presence of which was not related to the type of treatment or the form of the disease (hepatic vs. neuropsychiatric). The mechanisms responsible for the occurrence of autoantibodies in patients with WD are not known. It has also not been clarified whether they have clinical significance. In some patients, WD was differentiated or coexisted with an autoimmune disease, including autoimmune hepatitis or multiple sclerosis. Various molecular mechanisms may be responsible for immunological abnormalities and/or the inflammatory processes in WD. Their better understanding may be important for explaining the reasons for the diversity of symptoms and the varied course and response to therapy, as well as for the development of new treatment regimens for WD.

Wilson's Disease with Acute Hepatic Onset: How to Diagnose and Treat It

Wilson's disease (WD) with acute onset poses a diagnostic challenge because it is clinically indistinguishable from other acute liver diseases. In addition, serum ceruloplasmin and urinary copper excretion, the first-line diagnostic tools for WD, can show false positive results in the case of acute liver failure, and the diagnostic role of genetic analysis is limited by the time required to perform it. In the case of fulminant onset, there is a clear indication of liver transplantation. "New Wilson Index" is frequently used to discriminate between patients who need liver transplantation versus those who can be successfully managed by medical treatment, but its reliability remains controversial. Timely referral of patients with acute liver failure due to WD may be a key factor in improving patient survival. Although liver transplant very often represents the only chance for such patients, maximum effort should be made to promote survival with a native liver. The management of these aspects of WD is still a matter of debate and will be the subject of this review.

Simultaneous Occurrence of Wilson's Disease, Autoimmune Hepatitis, and Hereditary Hemochromatosis: A Diagnostic Challenge

This is not surprising to detect iron overload in chronic liver diseases and end-stage liver diseases since Kupffer cells scavenge necrotic hepatocytes during the course of liver damage, leading to an increased serum iron level and transferrin saturation compatible with iron overload even in the absence of a genetic mutation suggestive of hereditary hemochromatosis. Therewith, a relative association has been found between some sorts of chronic liver diseases like non-alcoholic steatohepatitis and hepatitis C with human homeostatic iron regulator protein (HFE: High Fe2+) gene mutations. Moreover, impairment of ceruloplasmin ferroxidase activity in the course of Wilson's disease (WD), leading to the accumulation of ferrous ions just like what is expected in aceruloplasminemia, is another known reason for iron overload accompanied by chronic liver disease. Of chronic liver diseases, autoimmune hepatitis (AIH), and cholestatic liver diseases are less related to iron overload. Accordingly, the coexistence of WD, AIH, and hereditary hemochromatosis when there exist clinical features, laboratory tests, genetic confirmation, and histological evaluations indicative of the three mentioned diseases is exceedingly rare. Here, we present a 55-year-old man referred with progressive generalized icterus accompanied by loss of appetite and significant weight loss. The presented case was not an appropriate candidate for liver biopsy due to recent coronary angioplasty and the urgent need for dual antiplatelet therapy. However, medical follow-ups were highly suggestive of concomitant WD, hereditary hemochromatosis, and AIH. The attempts failed for the treatment of hereditary hemochromatosis and WD with chelating agents until the completion of the course of treatment with immunosuppressants targeting components of the AIH-related immune system.

Prevalence and Significance of Autoantibody Seropositivity in Children with Wilson's Disease

Autoantibodies occur in healthy subjects as well as in children with Wilson's disease (WD), but their prevalence and significance are unknown. Thus, we aimed to assess the prevalence of autoantibodies and autoimmune markers, and their relationship to liver injury in WD children. The study included 74 WD and 75 healthy children as a control group. Patients with WD underwent transient elastography (TE) examinations, as well as determination of liver function tests, copper metabolism markers, and serum immunoglobulins (Ig). In the sera of the WD patients and controls, anti-nuclear (ANA), anti-smooth muscle, anti-mitochondrial, anti-parietal cell, anti-liver/kidney microsomal, anti-neutrophil cytoplasmic autoantibodies, and specific celiac antibodies were determined. Among the autoantibodies, only the prevalence of ANA in children with WD was higher than in the controls. There was no significant relationship between the presence of autoantibodies and liver steatosis or stiffness after TE. However, advanced liver stiffness (E > 8.2 kPa) was related to IgA, IgG, and gamma globulin production. The type of treatment did not influence the prevalence of autoantibodies. Our results suggest that autoimmune disturbances in WD might not be directly related to liver damage as expressed by steatosis and/or liver stiffness after TE.

You Only Find What You Are Looking for: Concurrent Alcoholic Liver Cirrhosis and Undiagnosed Wilson's Disease

Wilson’s disease (WD), a rare genetic disorder characterized by copper accumulation, leads to a spectrum of hepatic dysfunction including liver cirrhosis, fulminant liver failure, and chronic hepatitis. Its manifestations could involve musculoskeletal, hematologic, neuropsychiatric, or renal systems. We present the case of a 27-year-old female with a past medical history of alcohol use disorder who presented with acute confusion, worsening abdominal distension, bilateral lower limb edema, and jaundice.The initial presentation was concerning for acute alcoholic hepatitis and decompensated alcoholic cirrhosis attributed to ongoing heavy alcohol consumption. However, due to the patient’s young age, the severity of presentation, and the pattern of liver enzyme elevation, further workup was conducted to rule out concurrent pathologies. Viral, autoimmune, and metabolic workups were unrevealing. Subsequently, low ceruloplasmin levels and elevated urinary copper levels led to a diagnosis of WD with concomitant alcoholic liver disease.

The coexistence of WD and alcohol-associated liver disease (ALD) has not been well described in the literature. Laboratory testing including alkaline phosphatase (ALP), bilirubin, and serum aminotransferases provides the most rapid and accurate method for diagnosing ALD due to WD, given that the conventional screening tests such as ceruloplasmin are less sensitive and specific in identifying patients with acute liver disease secondary to WD.

Wilson's disease presentation resembling autoimmune hepatitis

We report a case of a 25-year-old female patient who showed chronic hepatopathy with elevated levels of autoantibodies and gamma globulins, resembling autoimmune hepatitis. After 8 weeks of unsuccessful immunosuppressive treatment, further evaluation showed laboratorial and histological findings suggestive of Wilson's disease. The new treatment with D-penicillamine resulted in positive outcome, despite the initial misleading diagnosis.

Wilson disease: a diagnostic challenge in a patient with alcoholic liver disease

A 32-year-old man with alcoholic cirrhosis presented with worsening abdominal distension and jaundice. He was diagnosed with cirrhosis 2 years prior after a hospitalisation for acute liver failure, during which viral, autoimmune and metabolic workup was unrevealing. Heavy alcohol consumption was his only obvious risk factor for liver disease, so his decompensation was attributed to alcohol. At the present time, he was admitted with acute-on-chronic liver failure and acute renal failure. The severity of his presentation and the disproportionately mild elevation in alkaline phosphatase relative to his hyperbilirubinaemia prompted repeating a ceruloplasmin level, which, though previously normal, was now low, and eventually led to a diagnosis of Wilson disease (WD) with concomitant alcoholic liver disease. Clinicians must recognise limitations in ceruloplasmin and copper levels when screening for WD and maintain suspicion for WD in young patients, even if there is an already established aetiology of liver disease.

Handling variability and incompleteness of biological data by flexible nets: a case study for Wilson disease

Mathematical models that combine predictive accuracy with explanatory power are central to the progress of systems and synthetic biology, but the heterogeneity and incompleteness of biological data impede our ability to construct such models. Furthermore, the robustness displayed by many biological systems means that they have the flexibility to operate under a range of physiological conditions and this is difficult for many modeling formalisms to handle. Flexible nets (FNs) address these challenges and represent a paradigm shift in model-based analysis of biological systems. FNs can: (i) handle uncertainties, ranges and missing information in concentrations, stoichiometry, network topology, and transition rates without having to resort to statistical approaches; (ii) accommodate different types of data in a unified model that integrates various cellular mechanisms; and (iii) be employed for system optimization and model predictive control. We present FNs and illustrate their capabilities by modeling a well-established system, the dynamics of glucose consumption by a microbial population. We further demonstrate the ability of FNs to take control actions in response to genetic or metabolic perturbations. Having bench-marked the system, we then construct the first quantitative model for Wilson disease—a rare genetic disorder that impairs copper utilization in the liver. We used this model to investigate the feasibility of using vitamin E supplementation therapy for symptomatic improvement. Our results indicate that hepatocytic inflammation caused by copper accumulation was not aggravated by limitations on endogenous antioxidant supplies, which means that treating patients with antioxidants is unlikely to be effective.

In order to study complex dynamical systems, appropriate mathematical models that capture the system features are necessary. Biological systems, in particular, require flexible modeling approaches for their study since they exhibit variable quantifiable responses under different conditions. Moreover, data about a given biological system are often uncertain or unavailable. Here, a group of scientists from the University of Cambridge introduce Flexible Nets (FNs), a novel approach for the modeling, analysis, and control of biological systems. After presenting the FN approach, they show how a well-known system of glucose consumption and utilization by yeast can be modeled, analyzed and controlled. Then, FNs are used to build and analyze the first quantitative and predictive model of Wilson disease (a heritable defect in copper utilization). They demonstrate that FN simulations permit an evaluation of the relative efficacy of different therapeutic options.