Case Report
Copyright ©The Author(s) 2017. Published by Baishideng Publishing Group Inc. All rights reserved.
World J Clin Infect Dis. Nov 25, 2017; 7(4): 50-57
Published online Nov 25, 2017. doi: 10.5495/wjcid.v7.i4.50
Autoimmune hepatitis in human immunodeficiency virus infection: Case report and literature review
Ivan Noreña, Jairo A Morantes-Caballero, Andrés Garcés, Brian José Gómez, Gabriel Rodríguez, Carlos Saavedra, William Otero
Ivan Noreña, Gabriel Rodríguez, Carlos Saavedra, Infectious Diseases Section, Department of Internal Medicine, Universidad Nacional de Colombia and Hospital Universitario Nacional de Colombia, Bogotá 11321, Colombia
Jairo A Morantes-Caballero, Andrés Garcés, Brian José Gómez, Department of Internal Medicine, Universidad Nacional de Colombia and Hospital Universitario Nacional de Colombia, Bogotá 11321, Colombia
William Otero, Gastroenterology Section, Department of Internal Medicine, Universidad Nacional de Colombia and Hospital Universitario Nacional de Colombia, Bogotá 11321, Colombia
ORCID number: Ivan Noreña (0000-0001-5092-2589); Jairo A Morantes-Caballero (0000-0001-5273-0580); Andrés Garcés (0000-0001-7577-1326); Brian José Gómez (0000-0002-1896-1016); Gabriel Rodríguez (0000-0003-3929-0933); Carlos Saavedra (0000-0003-0068-6631); William Otero (0000-0002-6825-9014).
Author contributions: All authors contributed to the acquisition of data, writing, and revision of this manuscript.
Institutional review board statement: This case report was exempt from the Institutional Review Board standards at Universidad Nacional de Colombia.
Informed consent statement: The patient gave his written informed consent authorizing use and disclosure of his protected health information.
Conflict-of-interest statement: All the authors have no conflicts of interests to declare.
Open-Access: This article is an open-access article which was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. See: http://creativecommons.org/licenses/by-nc/4.0/
Correspondence to: Jairo A Morantes-Caballero, Professor of Internal Medicine I, Department of Internal Medicine, Universidad Nacional de Colombia and Hospital Universitario Nacional de Colombia, Carrera 30 No. 45-03. Facultad de Medicina, Edificio 471, Oficina 510, Bogotá 111321, Colombia. jamorantesc@unal.edu.co
Telephone: +57-1-3165000 Fax: +57-1-3165000
Received: June 12, 2017
Peer-review started: June 15, 2017
First decision: July 20, 2017
Revised: August 2, 2017
Accepted: September 12, 2017
Article in press: September 13, 2017
Published online: November 25, 2017

Abstract

The infection due to human immunodeficiency virus (HIV) is characterized by the progressive reduction of CD4+ T lymphocytes and the compromise of other cell lines of the immune system, resulting in immunosuppression. In this context, autoimmune diseases could be considered contradictory, however, cases of autoimmune diseases during this infection have been described, including autoimmune hepatitis (AIH), which is uncommon and has few case reports within medical literature, none of them from Latin America. In this case report where a patient with an HIV infection on combined antiretroviral treatment developed acute elevation of transaminases, hyperbilirubinemia, and deterioration in hepatic synthetic function. Although initially an antiretroviral drug-induced liver injury was suspected, during the study a diagnosis of autoimmune hepatitis was proven, which required treatment with corticosteroid and azathioprine, obtaining a satisfactory response and managing to continue the antiretroviral therapy. Autoimmune diseases in HIV infection must be taken into account. In the case of hepatitis in patients with HIV on antiretroviral treatment, the differentiation between viral hepatitis caused by autoimmune diseases or medications is essential to establish an adequate treatment, and avoid the suspension of the antiretroviral therapy.

Key Words: Autoimmunity, Autoimmune hepatitis, Human immunodeficiency virus, Anti-human immunodeficiency virus agents, Drug-induced liver injury

Core tip: In the combined antiretroviral therapy era, human immunodeficiency virus (HIV) infection can show diverse manifestations others than infections, been autoimmunity a paradoxical but well described phenomena in this scenario. The objective of this case report is to illustrate a rare condition as autoimmune hepatitis in HIV infected patients on therapy, with an additional literature review, to help clinicians in the approach of this disease and the differentiation with drug induced liver injury related to antiretroviral therapy.


Citation: Noreña I, Morantes-Caballero JA, Garcés A, Gómez BJ, Rodríguez G, Saavedra C, Otero W. Autoimmune hepatitis in human immunodeficiency virus infection: Case report and literature review. World J Clin Infect Dis 2017; 7(4): 50-57
INTRODUCTION

The global incidence of infection due to human immunodeficiency virus (HIV) reached its peak in 1997. Since then it has remained relatively constant. However, the prevalence has increased as the survival rate has improved thanks to the combination antiretroviral therapy (cART)[1]. With these therapies there is a reduction of the mortality as well as the risk of developing severe events related to the acquired immune deficiency syndrome (AIDS) in 57% of cases, regardless of age, gender and CD4+ T lymphocyte count[1,2], and constitutes the most effective strategy for preventing onwards HIV-1 infections[3]. The early onset of therapy results in better outcomes for patients, even with an advanced disease[2]. In 2%-18% of patients, treatment must be discontinued due to adverse effects, especially in the liver, preventing patients to benefit from this treatment[4]. Drug induced liver injury (DILI) manifests itself through hepatitis and an increase of the aminotransferases, making it indistinguishable from any other hepatitis[5].

HIV affects the CD4+ lymphocytes and alters other cell lines of the innate immune system (macrophages, monocytes and dendritic cells)[6]. This can lead to autoimmune diseases[5-7]. So far, few cases have been published of HIV/AIDS patients with concomitant autoimmune diseases, such as vasculitis, systemic lupus erythematosus, psoriasis, Graves’ disease, and less commonly, autoimmune hepatitis (AIH)[5-9]. After reviewing the literature, there were only 22 cases of autoimmune hepatitis described in patients with HIV, in the described cases the CD4+ lymphocyte count was above 100 cells/mm3, and was initially considered as liver toxicity caused as a side effect of the antiretroviral therapy[10-18]. Taking into account the little information on these two entities occurring simultaneously, the case of a patient with HIV, who, in the course of their disease, developed AIH, is presented.

CASE REPORT

A 26-year-old male, student by occupation, who due to a self-suspicion screening for syphilis was diagnosed with a 2-year HIV infection; he was infected by a former partner in an unprotected man-man relation. In addition, he had a history of intravenous drug use, and no family history was identified. The initial study found an HIV viral load of 179488 copies/mL and a CD4+ T lymphocyte count of 298 cells/mm3 and CD8+ of 2067 cells/mm3. The complete blood count and liver and kidney profiles were normal. The serology for hepatitis A, B and C were negative, as well as the tuberculin test and the serology for syphilis. No opportunistic infections were documented. Treatment was started using Efavirenz/Tenofovir disoproxil fumarate/Emtricitabine, having a good tolerance and achieving a lower HIV viral load and satisfactory CD4+ T lymphocyte recovery. One year after starting the treatment, in a follow-up appointment clinical hypothyroidism of an autoimmune etiology was documented (anti-microsomal antibodies, anti-thyroglobulin and positive anti-thyroid peroxidase), and treatment with levothyroxine was started.

Several months later he was admitted to the emergency room due to jaundice. Hyperbilirubinemia (> 15 mg/dL) was found, with a predominance of direct bilirubin, severe elevation of transaminases (> 2000 IU/L), prolongation of the prothrombin time INR (1.95), and a discrete increase of alkaline phosphatase and gamma glutamyl transferase. Among other differential diagnostics, hepatotoxicity by cART was suspected, and this therapy was immediately discontinued. During hospitalization, the serology for hepatotropic viruses was negative (A, B, C and E), viral loads for virus B, C, Epstein Bar (EBV) and cytomegalovirus (CMV) were undetectable. The hepato-biliary ultrasound and portal doppler were normal. The antinuclear antibodies were positive 1:160 dils, with mottled pattern, and negative anti-mitochondrial and anti-muscle antibodies. High levels of immunoglobulin G were found. A liver biopsy was performed, which reported a lymphoplasmacytic inflammatory infiltration with eosinophils and severe interface activity, hepatocytes with peri-central inflammation and focal necrosis (“compatible with autoimmune hepatitis”) (Figures 1 and 2). Treatment with oral prednisolone 1 mg/kg per day was started, with a significant improvement and a quick normalization of amino transferases and bilirubin, and was discharged without restarting antiretroviral therapy.

Figure 1
Figure 1 Histologic findings. Histological section, H and E staining (scale bar × 10). Liver fragment with the presence of abundant inflammatory lymphoplasmacytic infiltrate with eosinophils and severe interface activity.
Figure 2
Figure 2 Histologic findings. Histological section H and E staining (scale bar x 40). Presence of lymphoplasmacytic infiltrate with eosinophils and hepatocytes with pericentral fibrosis inflammation.

As an outpatient, there was a gradual reduction of the prednisolone dose, until leaving a minimum dose of 10 mg/qd. With normal liver profile, cART treatment was restarted, replacing efavirenz with raltegravir and continuing Tenofovir disoproxil fumarate/Emtricitabine. A month later, the patient went again to the emergency room for recurrence of jaundice; increased serum transaminase levels greater than 2000 mg/dL were documented as well as bilirubin of 18 mg/dL at the expense of the direct bilirubin and the prolongation of prothrombin time and INR. He was hospitalized, cART therapy was once again suspended and doses of prednisolone of 1 mg/kg qd, were started, adding Azathioprine 25 mg/qd, and achieving a progressive reduction of transaminase and bilirubin. There was confusion to determine if the worsening of the hepatitis was due to the decrease of prednisolone (due to autoimmune hepatitis) or when the cART started (due to DILI). A Medical Board was held between the services of gastroenterology, internal medicine and infectious diseases, and based on the current guidelines for the diagnosis of autoimmune hepatitis and their differentiation with hepatitis due to medications (Table 1 and Figure 3), autoimmune hepatitis was defined as the definitive diagnosis[19]. To completely rule out DILI, in a hospital environment, antiretroviral therapy was restarted and the liver profile monitored, which continued to improve until it was normal and the patient discharged.

Table 1 Simplified diagnostic criteria for autoimmune hepatitis, adapted from EASL Clinical Practice Guidelines: Autoimmune hepatitis, 2015.
ParameterDiscriminatorScore
ANA or ASMA+≥ 1:401
ANA or ASMA+≥ 1:802
ANA or LKM+≥ 1:402
ANA or SLA/LP+Any title2
IgG or gamma globulins> ULN1
> 1.1 × ULN2
Liver biopsyCompatible with AIH1
Typical AIH2
Atypical0
Absence of viral hepatitisNo0
Yes2
Figure 3
Figure 3 Diagnostic algorithm suggested. Diagnostic algorithm suggested to differentiate between autoimmune hepatitis (AIH) of drug-induced liver injury (DILI). Following the suspension of the steroid, a long-term follow-up is recommended (6 mo to 3 year) so as not to lose a late relapse of autoimmune hepatitis. Adapted from EASL Clinical Practice Guidelines: Autoimmune hepatitis, 2015.

After six months of follow-up, the patient was asymptomatic, receiving maintenance therapy for AIH only with azathioprine 100 mg/qd, HIV treatment and replacement hormone therapy with levothyroxine. The liver profile has remained unchanged. Figure 4, shows the evolution of the liver profile before and during treatment.

Figure 4
Figure 4 Transaminase values during follow-up. Aspartate transaminase (AST) and alanine transaminase (ALT) values (UI/L) and their relationship with the interventions carried out and date (DD/MM): At the start of the follow-up, the patient was already receiving antiretroviral therapy, in the first interventions there is some confusion that does not allow to differentiate whether the decrease in serum transaminase levels was due to the onset of immunosuppressive therapy or the interruption of the antiretroviral therapy; also there is no indication to show if the second peak elevation of transaminases was due to the resumption of the antiretroviral therapy or due to the decrease in the dose of immunosuppressive therapy. In the end, it may be noted that, although the antiretroviral therapy was reset, the decline of transaminases continued with the immunosuppressive therapy, which helped to confirm the diagnosis of autoimmune hepatitis. cART: Combination antiretroviral therapy.
DISCUSSION

A case of autoimmune hepatitis in a patient with HIV infection has been presented. The coexistence of these diseases is rare: Three independent reviewers conducted the literature search in different electronic databases (PubMed, Science Direct, EBSCO and ProQuest), the search terms used were a combination of keywords and MeSH terms and included “HIV”, “AIDS”, “Human immunodeficiency virus”, “Autoimmune disease” “Autoimmunity”, “Autoimmune Hepatitis”, “Anti-HIV Agents”, “Anti-Retroviral Therapy” and “Drug-Induced Liver Injury” in the title, abstract, or keywords with no limit in dates, types of publication or language. Nine reports with only 22 cases of patients with both entities were found, none of them described in Latin America[10-18]; their characteristics can be seen in Table 2. However, in patients with HIV, AIH can be under-diagnosed because of the complexity of the diagnosis and the confounding factors present in patients with HIV (adverse effects to medications, hidden viral hepatitis, opportunistic infections, neoplasms)[14,16,20].

Table 2 Clinical characteristics of the cases reported.
AuthorVasiliosWanDaasCoriatPuiusO'LearyHagelCazanaveMurunga
Patients reported (n)141131119
Age (min/max) (yr)3849-56424829-6544524323-45
Gender (M/F)M1-3FF1-3FMF1-8
CD4+ cell count (cells/μL) (min/max)216174-357157250200-259269641500253-876
HIV viral load at presentation (min/max) (copies/mL)81000< 50-232734120000No data< 75-8687< 50UD< 1000UD-8
AST (min/max) (IU/L)12045-1861526No data20-500NO DATA343No data13-34
ALT (min/max) (IU/L)27445-16777735512-64126-94019250010-39
cARTZ, L, NelfinavirNo dataF, T, EtravirineR, E, AtazanavirL (2), Z, E (3), F (1), T (1), stavudineT, F, EDidanosine, stavudine, EL,Stavudine, EE (7) F (6) T (8) L (3) N (1) Z (1) L/R (1)
Positive autoantibodies (n) dilsANA 1:320 ASMA 1:40ANA 1:20-40 ASMA(1)ANA: 1:1280 ASMA(-)ANA: 1:80 LKM: 1:320ANA (2) 1:80-640 ASMA (1)ANA 1:160ANA: 1:2560ANA: 1:8000 ASMA: 1: 4000ANA (4), ASMA (6), ALKM (1)
Inmunoglobulin G (g/L)29.25639-202046303050-7500264039Normal16.5-55.2
FibrosisNoNoYesNoYesNoNoYesYes
International AIH group score (min/max)1510-1819No data10-152215No data12-20
TreatmentNo dataPrednisolone (4) Azathioprine (3)PrednisonePrednisolonePrednisolone, AzathioprinePrednisolone, AzathioprinePrednisolonePrednisolone, AzathioprinePrednisolone
Publication Year200520092011200820082008201220062016
Ref.[10][11][12][13][14][15][16][17][18]

The exact mechanisms by which patients with HIV may present AIH are unknown. However, an HIV infection is related to various autoimmunity phenomena[5,9]. The direct damage caused by the virus, the molecular mimicry, the deregulation of T/B cells, the generation of immune complexes and auto-antibodies can trigger damage to its own tissues[8,21]. AIH stands out due to the presence of autoreactive CD4+ and CD8+ T lymphocytes, and a cellular response mediated by antibodies with a particular increase in the Th17 subtype and IL17 release. This can be silent in stages of deep immunosuppression, with similar clinical and paraclinical reactivations similar to the immune reconstitution inflammatory syndrome (IRIS-like) that occurs with the immunological recovery associated with the effective antiretroviral therapy[18]. Four immunological stages have been described in HIV infection[9,10], the acute infection-latency (stage I-II) stage and the immune restoration related to antiretroviral therapy (stage IV) are the most likely to develop autoimmune disorders, furthermore, some disorders mediated by CD8+ cytotoxicity are present in the AIDS phase (stage III)[8].

Based on the hypotheses set forth, it is considered that, in the case described above, the immune restoration by antiretroviral therapy, in addition to the predisposition to autoimmune disorders, were the triggers of the hepatitis, the thrombocytopenia, and Hashimoto’s thyroiditis. This is consistent with the reports described in literature that supports the association between AIH and other autoimmune diseases, mainly Hashimoto’s thyroiditis[14].

The AIH is a disease common in women, however, it can occur in males, as has been reported in other cases (Table 2), and is characterized by an injury with hepatocellular pattern, circulating autoantibodies (anti-nuclear, anti-smooth muscle, or anti-microsomal liver-kidney), elevated levels of immunoglobulin G and a consistent liver biopsy. Histologically, there are characteristic changes (non pathognomonic) that include interface hepatitis, plasmacytic infiltration and regenerative hepatocyte rosettes[14].

The diagnosis is established by combining criteria and discarding other entities that cause hepatitis (Table 2)[17,19]. The acute case this patient developed occurs only in 25% of AIH, and makes diagnosis difficult, being that the negativity of the anti-smooth muscle antibodies is frequent[17]. In this patient, the diagnosis of AIH was achieved by the combination of clinical, paraclinical and histological findings, the good response to immunomodulatory therapy and the exclusion of other causes.

Once there is suspicion of an AIH diagnosis in a patient with HIV, they should be treated in a similar manner to immune competent patients. The first line includes prednisone or prednisolone (0.5-1 mg/kg per day), and azathioprine (1-2 mg/kg per day), gradually decreasing steroid doses and continuing maintenance treatment based on azathioprine. It is essential to continue antiretroviral therapy[19].

As in this case, in all reported AIH and HIV cases in literature, the development of hepatitis generated a suspicion of toxicity caused by antiretroviral therapy. In the recent AIH guide[19], a protocol was proposed in order to differentiate it from DILI (Figure 3). Typically, the antiretroviral therapy has a pattern of hepatocellular or cytolytic injury[13,14,22]. The most common histologic findings in hepatotoxicity related to drugs are microvesicular steatosis, acute hepatitis, eosinophilic infiltration and cholestatic injury[23]. DILI associated with antiretroviral therapy is a major problem; some of the nucleoside reverse transcriptase inhibitors (zidovudine, didanosine, stavudine, abacavir) are associated with mitochondrial toxicity and hepatic steatosis. The non-nucleoside inhibitors, such as Efavirenz and Nevirapine are associated with an increase of liver enzymes, and the latter to hypersensitivity reactions. Protease inhibitors (Indinavir, Saquinavir, Nelfinavir, Ritonavir, Lopinavir-ritonavir, Fosamprenavir, Atazanavir and Tipranavir) are associated with an increase of transaminases, and some, such as Indinavir and Atazanavir to indirect hyperbilirubinemia[24].

Upon suspicion of DILI, suspicious medication should be removed and the liver profile monitored until recovery, later each potentially involved medication reapplied. There are frequent difficulties in identifying the medications that are responsible, since several suspects can coexist, as happens with antituberculosis drugs (Rifampin, Isoniazid, Pyrazinamide), antiretroviral drugs (Efavirenz, Nevirapine, protease inhibitors) and other therapies such as Trimetoprim-sulfamethoxazole. If necessary, an attempt should be made to reintroduce the medications, avoiding the more suspicious agent, as there is a possibility of DILI with greater severity[25].

This is a case in point that does not fully represent the behavior of the autoimmune hepatitis in HIV patients. Therefore, more studies are needed in this population in order to achieve a better understanding of these illnesses.

In conclusion, autoimmune diseases should be taken into consideration in patients with HIV infection, especially those who receive cART therapy, as the immunological recovery can be unleashing them. Likewise, for patients with HIV who show elevated aminotransferase levels, autoimmune hepatitis should be taken into account as one of the possible causes and perform a diagnostic approach to differentiate it from other etiologies. This allows the appropriate treatment and avoids the prolonged suspension of antiretrovirals, and the complications arising from poor virologic control.

ARTICLE HIGHLIGHTS
Case characteristics

A 26-year-old male, diagnosed with human immunodeficiency virus (HIV) infection and treated with Efavirenz/Tenofovir disoproxil fumarate/Emtricitabine, was admitted to the emergency room due to jaundice, anti-retroviral treatment was suspended.

Clinical diagnosis

Jaundice without right upper quadrant pain or hepatomegaly.

Differential diagnosis

Drug-induced liver injury, viral hepatitis, alcoholic liver disease, neoplasm, acquired immune deficiency syndrome cholangiopathy.

Laboratory diagnosis

Hyperbilirubinemia with a predominance of direct bilirubin, severe elevation of transaminases and prolongation of the prothrombin time. The serology for hepatotropic viruses was negative (A, B, C and E), viral loads for virus B viral hepatitis, C viral hepatitis, Epstein Bar and cytomegalovirus were undetectable. The antinuclear antibodies were positive with mottled pattern, negative anti-mitochondrial and anti-muscle antibodies and high levels of immunoglobulin G.

Imaging diagnosis

The hepato-biliary ultrasound and portal doppler were normal.

Pathological diagnosis

Lymphoplasmacytic inflammatory infiltration with eosinophils and severe interface activity, hepatocytes with peri-central inflammation and focal necrosis (“compatible with autoimmune hepatitis”).

Treatment

Prednisolone of 1 mg/kg per day following tapered doses, Azathioprine 100 mg/qd and cART (Tenofovir disoproxil fumarate/Emtricitabine and Raltegravir).

Related reports

After literature search, nine reports with only 22 cases of patients with both entities were found, none of them described in Latin America.

Term explanation

Autoimmune hepatitis is a chronic inflammation of the liver of unknown cause, pathogenesis includes environmental triggers, failure of immune tolerance mechanisms, and a genetic predisposition that induce a T cell-mediated immune attack characterized with continuing hepatocellular necroinflammatory and fibrotic process. The diagnosis is based on histologic abnormalities, clinical and laboratory findings, abnormal levels of immunoglobulin G, and one or more characteristic autoantibodies.

Experiences and lessons

Autoimmunity in patients with HIV infection on cART is uncommon, nevertheless in some clinical scenarios should be considered. The differentiation among autoimmune hepatitis (AIH), drug induced liver injury or infectious hepatitis can be challenging and needs an extensive work-up.

ACKNOWLEDGMENTS

To Jaqcueline Mugnier MD pathologist of the Fundación Cardioinfantil (Bogotá, Colombia) for the histopathology images of the case, and to Ximena Castaneda MD of the Infectious Disease service of the Fundación Cardioinfantil (Bogotá, Colombia) for helping us to collect part of the information from the first hospitalization of the case.

Footnotes

Manuscript source: Unsolicited manuscript

Specialty type: Infectious diseases

Country of origin: Colombia

Peer-review report classification

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P- Reviewer: Beloukas AI, Maggi F S- Editor: Kong JX L- Editor: A E- Editor: Lu YJ

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