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Hof WFJ, de Boer JF, Verkade HJ. Emerging drugs for the treatment of progressive familial intrahepatic cholestasis: a focus on phase II and III trials. Expert Opin Emerg Drugs 2024; 29:305-320. [PMID: 38571480 DOI: 10.1080/14728214.2024.2336986] [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: 12/19/2023] [Accepted: 03/27/2024] [Indexed: 04/05/2024]
Abstract
INTRODUCTION Progressive familial intrahepatic cholestasis (PFIC) is a group of disorders characterized by inappropriate bile formation, causing hepatic accumulation of bile acids and, subsequently, liver injury. Until recently, no approved treatments were available for these patients. AREAS COVERED Recent clinical trials for PFIC treatment have focused on intestine-restricted ileal bile acid transporter (IBAT) inhibitors. These compounds aim to reduce the pool size of bile acids by interrupting their enterohepatic circulation. Other emerging treatments in the pipeline include systemic IBAT inhibitors, synthetic bile acid derivatives, compounds targeting bile acid synthesis via the FXR/FGF axis, and chaperones/potentiators that aim to enhance the residual activity of the mutated transporters. EXPERT OPINION Substantial progress has been made in drug development for PFIC patients during the last couple of years. Although data concerning long-term efficacy are as yet only scarcely available, new therapies have demonstrated robust efficacy in a considerable fraction of patients at least on the shorter term. However, a substantial fraction of PFIC patients do not respond to these novel therapies and thus still requires surgical treatment, including liver transplantation before adulthood. Hence, there is still an unmet medical need for long-term effective medical, preferably non-surgical, treatment for all PFIC patients.
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Affiliation(s)
- Willemien F J Hof
- Department of Pediatrics, University Medical Center Groningen, Groningen, The Netherlands
| | - Jan Freark de Boer
- Department of Pediatrics, University Medical Center Groningen, Groningen, The Netherlands
- Department of Laboratory Medicine, University Medical Center Groningen, Groningen, The Netherlands
| | - Henkjan J Verkade
- Department of Pediatrics, University Medical Center Groningen, Groningen, The Netherlands
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Li P, Miyamoto D, Fukumoto M, Kawaguchi Y, Yamashita M, Tetsuo H, Adachi T, Hidaka M, Hara T, Soyama A, Matsushima H, Imamura H, Kanetaka K, Gu W, Eguchi S. Generation of human hepatobiliary organoids with a functional bile duct from chemically induced liver progenitor cells. Stem Cell Res Ther 2024; 15:269. [PMID: 39183353 PMCID: PMC11346037 DOI: 10.1186/s13287-024-03877-z] [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: 04/09/2024] [Accepted: 08/04/2024] [Indexed: 08/27/2024] Open
Abstract
BACKGROUND Liver disease imposes a significant medical burden that persists due to a shortage of liver donors and an incomplete understanding of liver disease progression. Hepatobiliary organoids (HBOs) could provide an in vitro mini-organ model to increase the understanding of the liver and may benefit the development of regenerative medicine. METHODS In this study, we aimed to establish HBOs with bile duct (BD) structures and mature hepatocytes (MHs) using human chemically induced liver progenitor cells (hCLiPs). hCLiPs were induced in mature cryo-hepatocytes using a small-molecule cocktail of TGF-β inhibitor (A-83-01, A), GSK3 inhibitor (CHIR99021, C), and 10% FBS (FAC). HBOs were then formed by seeding hCLiPs into ultralow attachment plates and culturing them with a combination of small molecules of Rock-inhibitor (Y-27632) and AC (YAC). RESULTS These HBOs exhibited bile canaliculi of MHs connected to BD structures, mimicking bile secretion and transportation functions of the liver. The organoids showed gene expression patterns consistent with both MHs and BD structures, and functional assays confirmed their ability to transport the bile analogs of rhodamine-123 and CLF. Functional patient-specific HBOs were also successfully created from hCLiPs sourced from cirrhotic liver tissues. CONCLUSIONS This study demonstrated the potential of human HBOs as an efficient model for studying hepatobiliary diseases, drug discovery, and personalized medicine.
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Affiliation(s)
- Peilin Li
- Department of Surgery, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8102, Japan
- Department of Surgery, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, Guangdong, China
| | - Daisuke Miyamoto
- Department of Surgery, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8102, Japan
| | - Masayuki Fukumoto
- Department of Surgery, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8102, Japan
| | - Yuta Kawaguchi
- Department of Surgery, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8102, Japan
| | - Mampei Yamashita
- Department of Surgery, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8102, Japan
| | - Hanako Tetsuo
- Department of Surgery, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8102, Japan
| | - Tomohiko Adachi
- Department of Surgery, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8102, Japan
| | - Masaaki Hidaka
- Department of Surgery, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8102, Japan
| | - Takanobu Hara
- Department of Surgery, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8102, Japan
| | - Akihiko Soyama
- Department of Surgery, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8102, Japan
| | - Hajime Matsushima
- Department of Surgery, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8102, Japan
| | - Hajime Imamura
- Department of Surgery, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8102, Japan
| | - Kengo Kanetaka
- Department of Surgery, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8102, Japan
| | - Weili Gu
- Department of Surgery, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, Guangdong, China
| | - Susumu Eguchi
- Department of Surgery, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8102, Japan.
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Long J, Qiu B, Su X, Zhang J, Dong Q. Case Report: A case of Dubin-Johnson syndrome in a newborn. Front Pediatr 2024; 12:1417649. [PMID: 39100650 PMCID: PMC11294160 DOI: 10.3389/fped.2024.1417649] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/15/2024] [Accepted: 07/08/2024] [Indexed: 08/06/2024] Open
Abstract
Background Dubin-Johnson Syndrome (DJS) is a rare autosomal recessive genetic disorder, with most cases presenting in adolescence, but rare in newborns. Objective To investigate the clinical characteristics and treatment outcomes of DJS in a newborn. Methods We present the clinical features of a newborn diagnosed with DJS through molecular genetic testing. Results The patient was a male newborn who developed jaundice and scleral icterus on the 6th day of life. Both direct and indirect bilirubin levels were elevated. After treatment with phototherapy, indirect bilirubin levels decreased, but direct bilirubin remained unchanged, and the stool color gradually lightened. At 56 days of age, the patient underwent laparoscopic cholecystostomy, which revealed viscous bile plugs in the bile ducts. Following the surgery, the patient received oral ursodeoxycholic acid, compound glycyrrhizin, and methylprednisolone. Follow-up until one year post-surgery showed a gradual reduction in direct bilirubin levels to the normal range. Molecular genetic testing revealed three heterozygous mutations in the ABCC2 gene on chromosome 10, with one pathogenic variant inherited from the father and two from the mother, confirming the diagnosis of DJS. Conclusion DJS is a benign condition with a favorable prognosis. In newborns, it should be differentiated from other causes of cholestasis, and compared to cholestasis, jaundice in newborns with DJS responds more slowly to treatment.
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Affiliation(s)
| | | | | | | | - Qi Dong
- Department of General Surgery, Hainan Women and Children’s Medical Center, Hainan Women and Children’s Medical Center, Haikou, Hainan, China
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Bessone F, Hernandez N, Medina-Caliz I, García-Cortés M, Schinoni MI, Mendizabal M, Chiodi D, Nunes V, Ridruejo E, Pazos X, Santos G, Fassio E, Parana R, Reggiardo V, Tanno H, Sanchez A, Tanno F, Montes P, Tagle M, Arrese M, Brahm J, Girala M, Lizarzabal MI, Carrera E, Zerega A, Bianchi C, Reyes L, Arnedillo D, Cordone A, Gualano G, Jaureguizahar F, Rifrani G, Robles-Díaz M, Ortega-Alonso A, Pinazo-Bandera JM, Stephens C, Sanabria-Cabrera J, Bonilla-Toyos E, Niu H, Alvarez-Alvarez I, Lucena MI, Andrade RJ. Drug-induced Liver Injury in Latin America: 10-year Experience of the Latin American DILI (LATINDILI) Network. Clin Gastroenterol Hepatol 2024:S1542-3565(24)00605-0. [PMID: 38992407 DOI: 10.1016/j.cgh.2024.06.030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/10/2024] [Revised: 05/28/2024] [Accepted: 06/20/2024] [Indexed: 07/13/2024]
Abstract
BACKGROUND & AIMS Latin America is a region of great interest for studying the clinical presentation of idiosyncratic drug-induced liver injury (DILI). A comprehensive analysis of patients enrolled into the LATINDILI Network over a decade is presented. METHODS Demographics, clinical presentation, histological findings and outcome of prospectively recruited DILI cases in the LATINDILI Network were analyzed. Suspected culprit drugs were classified according to the Anatomical Therapeutic Chemical classification. Causality was assessed using the Roussel Uclaf Causality Assessment Method (RUCAM) scale. RESULTS Overall, 468 idiosyncratic DILI cases were analyzed (62% women; mean age, 49 years). Hepatocellular injury predominated (62%); jaundice was present in 60% of patients, and 42% were hospitalized. Of the cases, 4.1% had a fatal outcome, and 24 patients (12%) developed chronic DILI. The most common drug classes were systemic anti-infectives (31%), musculoskeletal agents (12%), antineoplastic and immunomodulating agents (11%), and herbal and dietary supplements (9%). Notably, none of the patients with DILI due to antibacterials or immunosuppressants had a fatal outcome. In fact, Hy's law showed to have drug-specific predictive value, with anti-tuberculosis drugs, nimesulide, and herbal and dietary supplements associated with the worst outcome, whereas DILI caused by amoxicillin-clavulanate, nitrofurantoin, and diclofenac, which fulfilled Hy's law, did not have a fatal outcome. CONCLUSION Features of DILI in Latin America are comparable to other prospective registries. However, the pattern of drugs responsible for DILI differs. An increasing incidence of herbal and dietary supplements, with high mortality rate, and likewise, nimesulide and nitrofurantoin, was noted. Thus, public health policies should raise awareness of the potential adverse effects of these compounds.
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Affiliation(s)
- Fernando Bessone
- Hospital Provincial del Centenario, Facultad de Medicina, Universidad Nacional de Rosario, Rosario, Argentina.
| | - Nelia Hernandez
- Hospital de Clínicas, Universidad de la República, Montevideo, Uruguay
| | - Inmaculada Medina-Caliz
- Servicios de Aparato Digestivo y Farmacología Clínica, Hospital Universitario Virgen de la Victoria, Instituto de Investigación Biomédica de Málaga y Plataforma en Nanomedicina-IBIMA Plataforma BIONAND, Universidad de Málaga, Málaga, Spain
| | - Miren García-Cortés
- Servicios de Aparato Digestivo y Farmacología Clínica, Hospital Universitario Virgen de la Victoria, Instituto de Investigación Biomédica de Málaga y Plataforma en Nanomedicina-IBIMA Plataforma BIONAND, Universidad de Málaga, Málaga, Spain; Centro de Investigación Biomédica en Red Enfermedades Hepáticas y Digestivas (CIBERehd), Instituto de Salud Carlos III, Madrid, Spain
| | - María I Schinoni
- Hospital Universitário Prof. Edgard Santos-UFBA, Salvador de Bahia, Brazil
| | | | - Daniela Chiodi
- Hospital de Clínicas, Universidad de la República, Montevideo, Uruguay
| | - Vinicius Nunes
- Hospital Universitário Prof. Edgard Santos-UFBA, Salvador de Bahia, Brazil
| | - Ezequiel Ridruejo
- Centro de Educación Médica e Investigaciones Clínicas, Buenos Aires, Argentina
| | - Ximena Pazos
- Hospital de Clínicas, Universidad de la República, Montevideo, Uruguay
| | - Genario Santos
- Hospital Universitário Prof. Edgard Santos-UFBA, Salvador de Bahia, Brazil
| | | | - Raymundo Parana
- Hospital Universitário Prof. Edgard Santos-UFBA, Salvador de Bahia, Brazil; Facultad de Medicina, Universidad Nacional de Bahia, Salvador de Bahia, Brazil
| | - Virginia Reggiardo
- Hospital Provincial del Centenario, Facultad de Medicina, Universidad Nacional de Rosario, Rosario, Argentina
| | - Hugo Tanno
- Hospital Provincial del Centenario, Facultad de Medicina, Universidad Nacional de Rosario, Rosario, Argentina
| | - Adriana Sanchez
- Hospital de Clínicas, Universidad de la República, Montevideo, Uruguay
| | - Federico Tanno
- Hospital Provincial del Centenario, Facultad de Medicina, Universidad Nacional de Rosario, Rosario, Argentina
| | - Pedro Montes
- Hospital Nacional Daniel Alcides Carrion, Callao, Peru
| | | | - Marco Arrese
- Pontificia Universidad Católica de Chile, Santiago de Chile, Chile
| | - Javier Brahm
- Pontificia Universidad Católica de Chile, Santiago de Chile, Chile
| | | | | | | | - Alina Zerega
- Hospital Allende, Ciudad de Córdoba, Córdoba, Argentina
| | - Carla Bianchi
- Hospital de Clínicas, Universidad de la República, Montevideo, Uruguay
| | - Laura Reyes
- Hospital de Clínicas, Universidad de la República, Montevideo, Uruguay
| | - Daina Arnedillo
- Hospital Provincial del Centenario, Facultad de Medicina, Universidad Nacional de Rosario, Rosario, Argentina
| | - Antonella Cordone
- Hospital Provincial del Centenario, Facultad de Medicina, Universidad Nacional de Rosario, Rosario, Argentina
| | | | - Fernanda Jaureguizahar
- Hospital Provincial del Centenario, Facultad de Medicina, Universidad Nacional de Rosario, Rosario, Argentina
| | - Gabriel Rifrani
- Hospital Provincial del Centenario, Facultad de Medicina, Universidad Nacional de Rosario, Rosario, Argentina
| | - Mercedes Robles-Díaz
- Servicios de Aparato Digestivo y Farmacología Clínica, Hospital Universitario Virgen de la Victoria, Instituto de Investigación Biomédica de Málaga y Plataforma en Nanomedicina-IBIMA Plataforma BIONAND, Universidad de Málaga, Málaga, Spain; Centro de Investigación Biomédica en Red Enfermedades Hepáticas y Digestivas (CIBERehd), Instituto de Salud Carlos III, Madrid, Spain
| | - Aida Ortega-Alonso
- Servicios de Aparato Digestivo y Farmacología Clínica, Hospital Universitario Virgen de la Victoria, Instituto de Investigación Biomédica de Málaga y Plataforma en Nanomedicina-IBIMA Plataforma BIONAND, Universidad de Málaga, Málaga, Spain; Centro de Investigación Biomédica en Red Enfermedades Hepáticas y Digestivas (CIBERehd), Instituto de Salud Carlos III, Madrid, Spain
| | - José M Pinazo-Bandera
- Servicios de Aparato Digestivo y Farmacología Clínica, Hospital Universitario Virgen de la Victoria, Instituto de Investigación Biomédica de Málaga y Plataforma en Nanomedicina-IBIMA Plataforma BIONAND, Universidad de Málaga, Málaga, Spain; Centro de Investigación Biomédica en Red Enfermedades Hepáticas y Digestivas (CIBERehd), Instituto de Salud Carlos III, Madrid, Spain
| | - Camilla Stephens
- Servicios de Aparato Digestivo y Farmacología Clínica, Hospital Universitario Virgen de la Victoria, Instituto de Investigación Biomédica de Málaga y Plataforma en Nanomedicina-IBIMA Plataforma BIONAND, Universidad de Málaga, Málaga, Spain; Centro de Investigación Biomédica en Red Enfermedades Hepáticas y Digestivas (CIBERehd), Instituto de Salud Carlos III, Madrid, Spain
| | - Judith Sanabria-Cabrera
- Servicios de Aparato Digestivo y Farmacología Clínica, Hospital Universitario Virgen de la Victoria, Instituto de Investigación Biomédica de Málaga y Plataforma en Nanomedicina-IBIMA Plataforma BIONAND, Universidad de Málaga, Málaga, Spain; Plataforma de Investigación Clínica y Ensayos Clínicos IBIMA, Plataforma ISCIII de Investigación Clínica, SCReN, Madrid, Spain
| | - Elvira Bonilla-Toyos
- Servicios de Aparato Digestivo y Farmacología Clínica, Hospital Universitario Virgen de la Victoria, Instituto de Investigación Biomédica de Málaga y Plataforma en Nanomedicina-IBIMA Plataforma BIONAND, Universidad de Málaga, Málaga, Spain; Plataforma de Investigación Clínica y Ensayos Clínicos IBIMA, Plataforma ISCIII de Investigación Clínica, SCReN, Madrid, Spain
| | - Hao Niu
- Servicios de Aparato Digestivo y Farmacología Clínica, Hospital Universitario Virgen de la Victoria, Instituto de Investigación Biomédica de Málaga y Plataforma en Nanomedicina-IBIMA Plataforma BIONAND, Universidad de Málaga, Málaga, Spain; Centro de Investigación Biomédica en Red Enfermedades Hepáticas y Digestivas (CIBERehd), Instituto de Salud Carlos III, Madrid, Spain; Plataforma de Investigación Clínica y Ensayos Clínicos IBIMA, Plataforma ISCIII de Investigación Clínica, SCReN, Madrid, Spain
| | - Ismael Alvarez-Alvarez
- Servicios de Aparato Digestivo y Farmacología Clínica, Hospital Universitario Virgen de la Victoria, Instituto de Investigación Biomédica de Málaga y Plataforma en Nanomedicina-IBIMA Plataforma BIONAND, Universidad de Málaga, Málaga, Spain; Centro de Investigación Biomédica en Red Enfermedades Hepáticas y Digestivas (CIBERehd), Instituto de Salud Carlos III, Madrid, Spain; Plataforma de Investigación Clínica y Ensayos Clínicos IBIMA, Plataforma ISCIII de Investigación Clínica, SCReN, Madrid, Spain
| | - M Isabel Lucena
- Servicios de Aparato Digestivo y Farmacología Clínica, Hospital Universitario Virgen de la Victoria, Instituto de Investigación Biomédica de Málaga y Plataforma en Nanomedicina-IBIMA Plataforma BIONAND, Universidad de Málaga, Málaga, Spain; Centro de Investigación Biomédica en Red Enfermedades Hepáticas y Digestivas (CIBERehd), Instituto de Salud Carlos III, Madrid, Spain; Plataforma de Investigación Clínica y Ensayos Clínicos IBIMA, Plataforma ISCIII de Investigación Clínica, SCReN, Madrid, Spain
| | - Raul J Andrade
- Servicios de Aparato Digestivo y Farmacología Clínica, Hospital Universitario Virgen de la Victoria, Instituto de Investigación Biomédica de Málaga y Plataforma en Nanomedicina-IBIMA Plataforma BIONAND, Universidad de Málaga, Málaga, Spain; Centro de Investigación Biomédica en Red Enfermedades Hepáticas y Digestivas (CIBERehd), Instituto de Salud Carlos III, Madrid, Spain.
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Thoeni C, Perciani CT, Nakib D, Camat D, McGilvray ID, MacParland SA, Fischer S. Analysis of various ATP-binding cassette transporters revealed quantification of ABCB4 as a potential diagnostic tool in primary sclerosing cholangitis (PSC). Histopathology 2023; 83:559-568. [PMID: 37488782 DOI: 10.1111/his.15006] [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: 12/05/2022] [Revised: 06/08/2023] [Accepted: 06/26/2023] [Indexed: 07/26/2023]
Abstract
AIMS ATP-binding cassette transporters are important proteins in regulating bile constituent transport between hepatocytes and the bile canalicular system. Dysfunctional transporters lead to accumulation of toxic bile components within hepatocytes or the biliary system, known as cholestasis, resulting in liver damage. It has been previously reported that two particular ATP-binding cassette transporters, ABCB4 and ABCB11, have altered expression in patients with primary sclerosing cholangitis (PSC). Interested in further analysis of expression patterns of ATP-binding cassette transporters in PSC patients, we investigated liver samples from 201 patients, including 43 patients with PSC and 51 patients with primary biliary cholangitis patients (PBC). In addition to ABCB4 and ABCB11, we also included other ATP-binding cassette transporters, to determine if upregulation of ABCB4 and ABCB11 is specifically found in the liver of patients with PSC. METHODS AND RESULTS Retrospectively, formalin-fixed and paraffin-embedded liver biopsies, resections, and explants were selected to investigate the expression of ABCB1, ABCB4, ABCB11, ABCG5/8, and FXR1 using nanoString nCounter and immunohistochemistry for validation of differently expressed transporters seen in PSC liver samples in comparison to non-PSC liver specimens. Strikingly, ABCB4 was the only ATP-binding cassette transporter showing increased gene and protein expression in hepatocytes of PSC livers when compared to non-PSC liver specimens. Furthermore, ABCB4 protein expression also correlated with disease stage in PSC. CONCLUSION Our study concluded that altered ABCB4 expression is specifically seen in liver specimens of PSC patients. Therefore, quantitative ABCB4 analysis may be an additional useful tool for the histopathological diagnosis of PSC to distinguish this entity from other cholangiopathies.
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Affiliation(s)
- Cornelia Thoeni
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada
| | - Catia T Perciani
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada
- Ajmera Transplant Centre, Toronto General Hospital Research Institute, Toronto, ON, Canada
- Department of Immunology, University of Toronto, Medical Sciences Building, Toronto, ON, Canada
| | - Diana Nakib
- Ajmera Transplant Centre, Toronto General Hospital Research Institute, Toronto, ON, Canada
- Department of Immunology, University of Toronto, Medical Sciences Building, Toronto, ON, Canada
| | - Damra Camat
- Ajmera Transplant Centre, Toronto General Hospital Research Institute, Toronto, ON, Canada
- Department of Immunology, University of Toronto, Medical Sciences Building, Toronto, ON, Canada
| | - Ian D McGilvray
- Ajmera Transplant Centre, Toronto General Hospital Research Institute, Toronto, ON, Canada
- Multi-Organ Transplant Program, Toronto General Hospital Research Institute, Toronto, ON, Canada
| | - Sonya A MacParland
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada
- Ajmera Transplant Centre, Toronto General Hospital Research Institute, Toronto, ON, Canada
- Department of Immunology, University of Toronto, Medical Sciences Building, Toronto, ON, Canada
| | - Sandra Fischer
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada
- Department of Pathology, Laboratory Medicine Program, University Health Network, Toronto, ON, Canada
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Kato K, Umetsu S, Togawa T, Ito K, Kawabata T, Arinaga-Hino T, Tsumura N, Yasuda R, Mihara Y, Kusano H, Ito S, Imagawa K, Hayashi H, Inui A, Yamashita Y, Mizuochi T. Clinicopathologic Features, Genetics, Treatment, and Long-Term Outcomes in Japanese Children and Young Adults with Benign Recurrent Intrahepatic Cholestasis: A Multicenter Study. J Clin Med 2023; 12:5979. [PMID: 37762919 PMCID: PMC10532077 DOI: 10.3390/jcm12185979] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2023] [Revised: 09/13/2023] [Accepted: 09/13/2023] [Indexed: 09/29/2023] Open
Abstract
BACKGROUND Few reports of benign recurrent intrahepatic cholestasis (BRIC) have focused on East Asian patients. We describe the clinicopathologic features, genetics, treatment, and outcomes in Japanese BRIC patients. METHODS We recruited patients with BRIC type 1 (BRIC-1) or 2 (BRIC-2) treated at four pediatric centers and one adult center between April 2007 and March 2022. Demographics, clinical course, laboratory results, molecular genetic findings concerning ATP8B1 and ABCB11 genes, histopathology, and treatment response were examined retrospectively. RESULTS Seven Japanese patients with BRIC were enrolled (four male, three female; four BRIC-1 and three BRIC-2). The median age at onset for BRIC-1 was 12 years; for BRIC-2, it was 1 month. Intermittent cholestatic attacks numbered from one to eight during the 11 years of median follow-up. Six patients received a mainstream education; only one patient attended special education. None developed cirrhosis. Three with BRIC-1 showed compound heterozygosity for a variant ATP8B1 gene, while one was heterozygous; two BRIC-2 patients showed compound heterozygosity in ABCB11 and one was heterozygous. Liver biopsy specimens obtained during cholestatic attacks showed fibrosis varying from none to moderate; inflammation was absent or mild. Rifampicin administered to three patients for cholestatic attacks was effective in all, as was cholestyramine in two of three. CONCLUSIONS To our knowledge, this is the first East Asian multicenter study of BRIC patients. Onset age and number of cholestatic attacks varied. Rifampicin and cholestyramine were effective against attacks. No patient developed cirrhosis; most had normal growth and development. The long-term outcomes were satisfactory.
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Affiliation(s)
- Ken Kato
- Department of Pediatrics and Child Health, Kurume University School of Medicine, Kurume 830-0011, Japan
| | - Shuichiro Umetsu
- Department of Pediatric Hepatology and Gastroenterology, Saiseikai Yokohamashi Tobu Hospital, Yokohama 230-0012, Japan
| | - Takao Togawa
- Department of Pediatrics and Neonatology, Nagoya City University Graduate School of Medical Sciences, Nagoya 467-8601, Japan
| | - Koichi Ito
- Department of Pediatrics and Neonatology, Nagoya City University Graduate School of Medical Sciences, Nagoya 467-8601, Japan
| | - Takayoshi Kawabata
- Department of Pediatrics, Ishikawa Prefectural Central Hospital, Kanazawa 920-8530, Japan
| | - Teruko Arinaga-Hino
- Division of Gastroenterology, Department of Medicine, Kurume University School of Medicine, Kurume 830-0011, Japan
| | - Naoya Tsumura
- Department of Pediatrics and Child Health, Kurume University School of Medicine, Kurume 830-0011, Japan
| | - Ryosuke Yasuda
- Department of Pediatrics and Child Health, Kurume University School of Medicine, Kurume 830-0011, Japan
| | - Yutaro Mihara
- Department of Pathology, Kurume University School of Medicine, Kurume 830-0011, Japan
| | - Hironori Kusano
- Department of Pathology, Kurume University School of Medicine, Kurume 830-0011, Japan
| | - Shogo Ito
- Department of Pediatrics and Neonatology, Nagoya City University Graduate School of Medical Sciences, Nagoya 467-8601, Japan
| | - Kazuo Imagawa
- Department of Child Health, Institute of Medicine, University of Tsukuba, Tsukuba 305-8546, Japan
| | - Hisamitsu Hayashi
- Laboratory of Molecular Pharmacokinetics, Graduate School of Pharmaceutical Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - Ayano Inui
- Department of Pediatric Hepatology and Gastroenterology, Saiseikai Yokohamashi Tobu Hospital, Yokohama 230-0012, Japan
| | - Yushiro Yamashita
- Department of Pediatrics and Child Health, Kurume University School of Medicine, Kurume 830-0011, Japan
| | - Tatsuki Mizuochi
- Department of Pediatrics and Child Health, Kurume University School of Medicine, Kurume 830-0011, Japan
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Moore JM, Bell EL, Hughes RO, Garfield AS. ABC transporters: human disease and pharmacotherapeutic potential. Trends Mol Med 2023; 29:152-172. [PMID: 36503994 DOI: 10.1016/j.molmed.2022.11.001] [Citation(s) in RCA: 22] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 10/24/2022] [Accepted: 11/01/2022] [Indexed: 12/12/2022]
Abstract
Adenosine triphosphate (ATP)-binding cassette (ABC) transporters are a 48-member superfamily of membrane proteins that actively transport a variety of biological substrates across lipid membranes. Their functional diversity defines an expansive involvement in myriad aspects of human biology. At least 21 ABC transporters underlie rare monogenic disorders, with even more implicated in the predisposition to and symptomology of common and complex diseases. Such broad (patho)physiological relevance places this class of proteins at the intersection of disease causation and therapeutic potential, underlining them as promising targets for drug discovery, as exemplified by the transformative CFTR (ABCC7) modulator therapies for cystic fibrosis. This review will explore the growing relevance of ABC transporters to human disease and their potential as small-molecule drug targets.
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Mechanisms of pruritus in cholestasis: understanding and treating the itch. Nat Rev Gastroenterol Hepatol 2023; 20:26-36. [PMID: 36307649 DOI: 10.1038/s41575-022-00687-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 09/07/2022] [Indexed: 02/01/2023]
Abstract
Pruritus in cholestatic liver diseases can be a major burden and dramatically impair the quality of life of those affected. Here, we provide an update on the latest insights into the molecular pathogenesis of and novel therapeutic approaches for cholestasis-associated itch. Endogenous and exogenous small-molecule pruritogen candidates bind to their receptors on unmyelinated itch C-fibres in the skin. Candidate pruritogens in cholestasis include certain lysophospholipids and sulfated progesterone metabolites, among others, whereas total bile acid or bilirubin conjugates seem unlikely to have a dominant role in the pathogenesis of cholestasis-associated pruritus. Transmission of itch signals via primary, secondary and tertiary itch neurons to the postcentral gyrus and activation of scratch responses offer various targets for therapeutic intervention. At present, evidence-based treatment options for pruritus in fibrosing cholangiopathies, such as primary biliary cholangitis and primary sclerosing cholangitis, are the peroxisome proliferator-associated receptor (PPAR) agonist bezafibrate and the pregnane X receptor (PXR) agonist rifampicin. In pruritus of intrahepatic cholestasis of pregnancy, ursodeoxycholic acid is recommended and might be supported in the third trimester by rifampicin if needed. Alternatively, non-absorbable anion exchange resins, such as cholestyramine, can be administered, albeit with poor trial evidence. Liver transplantation for intolerable refractory pruritus has become an extremely rare therapeutic strategy.
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Huang L, Li S, Chen J, Zhu Y, Lan K, Zeng L, Jiang X, Zhang L. Efficacy and safety of ursodeoxycholic acid in children with cholestasis: A systematic review and meta-analysis. PLoS One 2023; 18:e0280691. [PMID: 36719881 PMCID: PMC9888709 DOI: 10.1371/journal.pone.0280691] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Accepted: 01/06/2023] [Indexed: 02/01/2023] Open
Abstract
OBJECTIVES Ursodeoxycholic acid (UDCA) is the main therapeutic drug for cholestasis, but its use in children is controversial. We conducted this study to evaluate the efficacy and safety of ursodeoxycholic acid in children with cholestasis. METHODS We searched Medline (Ovid), Embase (Ovid), Cochrane Central Register of Controlled Trials (CENTRAL), CNKI, WanFang Data and VIP from the establishment of databases to July 2022. Eligible studies included Chinese or English randomized controlled trials (RCTs) comparing the efficacy and safety of no UDCA (placebo or blank control) and UDCA in children with cholestasis. This study had been registered with PROSPERO (CRD42022354052). RESULTS A total of 32 RCTs proved eligible, which included 2153 patients. The results of meta-analysis showed that UDCA could improve symptoms of children with cholestasis (risk ratio 1.24, 95% CI 1.18 to 1.29; moderate quality of evidence), and serum levels of alanine aminotransferase, total bilirubin, direct bilirubin and total bile acid (low quality of evidence). For some children with specific cholestasis, UDCA could also effectively drop serum levels of aspartate aminotransferase (parenteral nutrition-associated cholestasis) and γ-glutamyl transferase (infantile hepatitis syndrome, parenteral nutrition-associated cholestasis). The most common adverse drug reactions (ADRs) of UDCA in children were gastrointestinal adverse reactions, with an incidence of 10.63% (67/630). There was no significant difference in the incidence of ADRs between UDCA and placebo/blank control groups (risk difference 0.03, 95%CI -0.01 to 0.06; moderate quality of evidence), and among children taking different UDCA doses (P = 0.27). CONCLUSION The available short-term evidence showed that UDCA was effective and safe for children with cholestasis. Clinicians should use UDCA with caution (start with a low dose) until the long-term effect is further explored in future larger RCTs.
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Affiliation(s)
- Liang Huang
- West China School of Pharmacy, Sichuan University, Chengdu, China
- Department of Pharmacy, West China Second University Hospital, Sichuan University, Chengdu, China
- Evidence-based Pharmacy Center, West China Second University Hospital, Sichuan University, Chengdu, China
- NMPA Key Laboratory for Technical Research on Drug Products In Vitro and In Vivo Correlation, Chengdu, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, Chengdu, China
| | - Siyu Li
- Department of Pharmacy, West China Second University Hospital, Sichuan University, Chengdu, China
- Evidence-based Pharmacy Center, West China Second University Hospital, Sichuan University, Chengdu, China
- NMPA Key Laboratory for Technical Research on Drug Products In Vitro and In Vivo Correlation, Chengdu, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, Chengdu, China
- West China School of Medicine, Sichuan University, Chengdu, China
| | - Jingjing Chen
- Department of Pharmacy, West China Second University Hospital, Sichuan University, Chengdu, China
- Evidence-based Pharmacy Center, West China Second University Hospital, Sichuan University, Chengdu, China
- NMPA Key Laboratory for Technical Research on Drug Products In Vitro and In Vivo Correlation, Chengdu, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, Chengdu, China
| | - Yu Zhu
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, Chengdu, China
- Department of Pediatrics, West China Second University Hospital, Sichuan University, Chengdu, China
| | - Ke Lan
- West China School of Pharmacy, Sichuan University, Chengdu, China
| | - Linan Zeng
- Department of Pharmacy, West China Second University Hospital, Sichuan University, Chengdu, China
- Evidence-based Pharmacy Center, West China Second University Hospital, Sichuan University, Chengdu, China
- NMPA Key Laboratory for Technical Research on Drug Products In Vitro and In Vivo Correlation, Chengdu, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, Chengdu, China
| | - Xuehua Jiang
- West China School of Pharmacy, Sichuan University, Chengdu, China
| | - Lingli Zhang
- Department of Pharmacy, West China Second University Hospital, Sichuan University, Chengdu, China
- Evidence-based Pharmacy Center, West China Second University Hospital, Sichuan University, Chengdu, China
- NMPA Key Laboratory for Technical Research on Drug Products In Vitro and In Vivo Correlation, Chengdu, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, Chengdu, China
- * E-mail:
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Helgadottir H, Folvik G, Vesterhus M. Improvement of cholestatic episodes in patients with benign recurrent intrahepatic cholestasis (BRIC) treated with rifampicin. A long-term follow-up. Scand J Gastroenterol 2022; 58:512-520. [PMID: 36369734 DOI: 10.1080/00365521.2022.2143725] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
OBJECTIVE Patients with benign recurrent intrahepatic cholestasis (BRIC) suffer from recurrent episodes of cholestatic jaundice. Treatment options remain limited and are mainly symptomatic. In case reports rifampicin, plasmapheresis, and nasobiliary drainage have been reported to be effective. In this case series, we present long-term experience indicating disease-modifying effects of non-invasive treatment with rifampicin for recurrent cholestasis in BRIC type 1 (BRIC1). MATERIALS AND METHODS We included all adult BRIC1 patients diagnosed and followed up at a single centre in Bergen, Norway. Data regarding clinical and biochemical features during BRIC attacks with and without rifampicin treatment were retrieved from medical journals and a data registry. RESULTS Five males with BRIC1 were included. Median age at diagnosis was 22 years (range 15-41). Together they had suffered from 65 cholestatic attacks (including four documented abortive attacks). Twenty-eight attacks were treated with rifampicin alone over the last 12 years; all cases showed symptomatic relief and reduction in the levels of bilirubin and alkaline phosphatase in blood. The attacks treated with rifampicin seemed to have shorter duration and were less likely to result in complications or hospitalization compared to attacks prior to the introduction of rifampicin. No side effects attributable to rifampicin were noted. CONCLUSIONS Episodic treatment of recurrent BRIC1 attacks with rifampicin seems to ameliorate severity and shorten the duration of attacks. Timely diagnosis and effective treatment are of major importance in BRIC, not only to decrease complications but also improving patients' quality of life.
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Affiliation(s)
- Holmfridur Helgadottir
- Department of Transplantation Medicine, Division of Surgery, Inflammatory Medicine and Transplantation, Norwegian PSC Research Centre, Oslo University Hospital Rikshospitalet, Oslo, Norway.,Department of Medicine, Haraldsplass Deaconess Hospital, Bergen, Norway
| | - Geir Folvik
- National Centre for Ultrasound in Gastroenterology, Haukeland University Hospital, Bergen, Norway.,Department of Medicine, Haukeland University Hospital, Bergen, Norway
| | - Mette Vesterhus
- Department of Transplantation Medicine, Division of Surgery, Inflammatory Medicine and Transplantation, Norwegian PSC Research Centre, Oslo University Hospital Rikshospitalet, Oslo, Norway.,Department of Medicine, Haraldsplass Deaconess Hospital, Bergen, Norway.,Department of Clinical Science, University of Bergen, Bergen, Norway
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Ghanem CI, Manautou JE. Role and Regulation of Hepatobiliary ATP-Binding Cassette Transporters during Chemical-Induced Liver Injury. Drug Metab Dispos 2022; 50:1376-1388. [PMID: 35914951 PMCID: PMC9513844 DOI: 10.1124/dmd.121.000450] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Accepted: 07/20/2022] [Indexed: 11/22/2022] Open
Abstract
Severity of drug-induced liver injury (DILI) ranges from mild, asymptomatic, and transient elevations in liver function tests to irreversible liver damage, often needing transplantation. Traditionally, DILI is classified mechanistically as high-frequency intrinsic DILI, commonly dose dependent or DILI that rarely occurs and is idiosyncratic in nature. This latter form is not dose dependent and has a pattern of histopathological manifestation that is not always uniform. Currently, a third type of DILI called indirect hepatotoxicity has been described that is associated with the pharmacological action of the drug. Historically, DILI was primarily linked to drug metabolism events; however, the impact of transporter-mediated rates of drug uptake and excretion has gained greater prominence in DILI research. This review provides a comprehensive view of the major findings from studies examining the contribution of hepatic ATP-binding cassette transporters as key contributors to DILI and how changes in their expression and function influence the development, severity, and overall toxicity outcome. SIGNIFICANCE STATEMENT: Drug-induced liver injury (DILI) continues to be a focal point in drug development research. ATP-binding cassette (ABC) transporters have emerged as important determinants of drug detoxification, disposition, and safety. This review article provides a comprehensive analysis of the literature addressing: (a) the role of hepatic ABC transporters in DILI, (b) the influence of genetic mutations in ABC transporters on DILI, and (c) new areas of research emphasis, such as the influence of the gut microbiota and epigenetic regulation, on ABC transporters.
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Affiliation(s)
- Carolina I Ghanem
- Instituto de Investigaciones Farmacológicas (ININFA-UBA-CONICET) (C.I.G.) and Cátedra de Fisiopatología (C.I.G.), Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Argentina; and Department of Pharmaceutical Sciences, University of Connecticut, Storrs, Connecticut (J.E.M.)
| | - Jose E Manautou
- Instituto de Investigaciones Farmacológicas (ININFA-UBA-CONICET) (C.I.G.) and Cátedra de Fisiopatología (C.I.G.), Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Argentina; and Department of Pharmaceutical Sciences, University of Connecticut, Storrs, Connecticut (J.E.M.)
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12
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Novel Gene-Correction-Based Therapeutic Modalities for Monogenic Liver Disorders. Bioengineering (Basel) 2022; 9:bioengineering9080392. [PMID: 36004917 PMCID: PMC9404740 DOI: 10.3390/bioengineering9080392] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Revised: 08/04/2022] [Accepted: 08/10/2022] [Indexed: 11/17/2022] Open
Abstract
The majority of monogenic liver diseases are autosomal recessive disorders, with few being sex-related or co-dominant. Although orthotopic liver transplantation (LT) is currently the sole therapeutic option for end-stage patients, such an invasive surgical approach is severely restricted by the lack of donors and post-transplant complications, mainly associated with life-long immunosuppressive regimens. Therefore, the last decade has witnessed efforts for innovative cellular or gene-based therapeutic strategies. Gene therapy is a promising approach for treatment of many hereditary disorders, such as monogenic inborn errors. The liver is an organ characterized by unique features, making it an attractive target for in vivo and ex vivo gene transfer. The current genetic approaches for hereditary liver diseases are mediated by viral or non-viral vectors, with promising results generated by gene-editing tools, such as CRISPR-Cas9 technology. Despite massive progress in experimental gene-correction technologies, limitations in validated approaches for monogenic liver disorders have encouraged researchers to refine promising gene therapy protocols. Herein, we highlighted the most common monogenetic liver disorders, followed by proposed genetic engineering approaches, offered as promising therapeutic modalities.
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13
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Wang HH, Portincasa P, Liu M, Wang DQH. Genetic Analysis of ABCB4 Mutations and Variants Related to the Pathogenesis and Pathophysiology of Low Phospholipid-Associated Cholelithiasis. Genes (Basel) 2022; 13:1047. [PMID: 35741809 PMCID: PMC9222727 DOI: 10.3390/genes13061047] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Accepted: 06/08/2022] [Indexed: 12/28/2022] Open
Abstract
Clinical studies have revealed that the ABCB4 gene encodes the phospholipid transporter on the canalicular membrane of hepatocytes, and its mutations and variants are the genetic basis of low phospholipid-associated cholelithiasis (LPAC), a rare type of gallstone disease caused by a single-gene mutation or variation. The main features of LPAC include a reduction or deficiency of phospholipids in bile, symptomatic cholelithiasis at <40 years of age, intrahepatic sludge and microlithiasis, mild chronic cholestasis, a high cholesterol/phospholipid ratio in bile, and recurrence of biliary symptoms after cholecystectomy. Needle-like cholesterol crystals, putatively “anhydrous” cholesterol crystallization at low phospholipid concentrations in model and native bile, are characterized in ABCB4 knockout mice, a unique animal model for LPAC. Gallbladder bile with only trace amounts of phospholipids in these mice is supersaturated with cholesterol, with lipid composition plotting in the left two-phase zone of the ternary phase diagram, consistent with “anhydrous” cholesterol crystallization. In this review, we summarize the molecular biology and physiological functions of ABCB4 and comprehensively discuss the latest advances in the genetic analysis of ABCB4 mutations and variations and their roles in the pathogenesis and pathophysiology of LPAC in humans, based on the results from clinical studies and mouse experiments. To date, approximately 158 distinct LPAC-causing ABCB4 mutations and variants in humans have been reported in the literature, indicating that it is a monogenic risk factor for LPAC. The elucidation of the ABCB4 function in the liver, the identification of ABCB4 mutations and variants in LPAC patients, and the exploration of gene therapy for ABCB4 deficiency in animal models can help us to better understand the cellular, molecular, and genetic mechanisms underlying the onset of the disease, and will pave the way for early diagnosis and prevention of susceptible subjects and effective intervention for LPAC in patients.
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Affiliation(s)
- Helen H. Wang
- Department of Medicine and Genetics, Division of Gastroenterology and Liver Diseases, Marion Bessin Liver Research Center, Einstein-Mount Sinai Diabetes Research Center, Albert Einstein College of Medicine, Bronx, NY 10461, USA;
| | - Piero Portincasa
- Department of Biomedical Sciences and Human Oncology, Clinica Medica “A. Murri”, University of Bari Medical School, 70124 Bari, Italy;
| | - Min Liu
- Department of Pathology and Laboratory Medicine, University of Cincinnati College of Medicine, Cincinnati, OH 45237, USA;
| | - David Q.-H. Wang
- Department of Medicine and Genetics, Division of Gastroenterology and Liver Diseases, Marion Bessin Liver Research Center, Einstein-Mount Sinai Diabetes Research Center, Albert Einstein College of Medicine, Bronx, NY 10461, USA;
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Martínez-García J, Molina A, González-Aseguinolaza G, Weber ND, Smerdou C. Gene Therapy for Acquired and Genetic Cholestasis. Biomedicines 2022; 10:biomedicines10061238. [PMID: 35740260 PMCID: PMC9220166 DOI: 10.3390/biomedicines10061238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 05/23/2022] [Accepted: 05/24/2022] [Indexed: 11/16/2022] Open
Abstract
Cholestatic diseases can be caused by the dysfunction of transporters involved in hepatobiliary circulation. Although pharmacological treatments constitute the current standard of care for these diseases, none are curative, with liver transplantation being the only long-term solution for severe cholestasis, albeit with many disadvantages. Liver-directed gene therapy has shown promising results in clinical trials for genetic diseases, and it could constitute a potential new therapeutic approach for cholestatic diseases. Many preclinical gene therapy studies have shown positive results in animal models of both acquired and genetic cholestasis. The delivery of genes that reduce apoptosis or fibrosis or improve bile flow has shown therapeutic effects in rodents in which cholestasis was induced by drugs or bile duct ligation. Most studies targeting inherited cholestasis, such as progressive familial intrahepatic cholestasis (PFIC), have focused on supplementing a correct version of a mutated gene to the liver using viral or non-viral vectors in order to achieve expression of the therapeutic protein. These strategies have generated promising results in treating PFIC3 in mouse models of the disease. However, important challenges remain in translating this therapy to the clinic, as well as in developing gene therapy strategies for other types of acquired and genetic cholestasis.
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Affiliation(s)
- Javier Martínez-García
- Division of Gene Therapy and Regulation of Gene Expression, Cima Universidad de Navarra, 31008 Pamplona, Spain; (J.M.-G.); (A.M.); (G.G.-A.)
| | - Angie Molina
- Division of Gene Therapy and Regulation of Gene Expression, Cima Universidad de Navarra, 31008 Pamplona, Spain; (J.M.-G.); (A.M.); (G.G.-A.)
| | - Gloria González-Aseguinolaza
- Division of Gene Therapy and Regulation of Gene Expression, Cima Universidad de Navarra, 31008 Pamplona, Spain; (J.M.-G.); (A.M.); (G.G.-A.)
- Instituto de Investigación Sanitaria de Navarra (IdISNA), 31008 Pamplona, Spain
- Vivet Therapeutics S.L., 31008 Pamplona, Spain
| | - Nicholas D. Weber
- Vivet Therapeutics S.L., 31008 Pamplona, Spain
- Correspondence: (N.D.W.); (C.S.); Tel.: +34-948194700 (N.D.W. & C.S.)
| | - Cristian Smerdou
- Division of Gene Therapy and Regulation of Gene Expression, Cima Universidad de Navarra, 31008 Pamplona, Spain; (J.M.-G.); (A.M.); (G.G.-A.)
- Instituto de Investigación Sanitaria de Navarra (IdISNA), 31008 Pamplona, Spain
- Correspondence: (N.D.W.); (C.S.); Tel.: +34-948194700 (N.D.W. & C.S.)
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15
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Sharma P, Sharma S. In silico screening and analysis of single-nucleotide polymorphic variants of the ABCC2 gene affecting Dubin-Johnson syndrome. Arab J Gastroenterol 2022; 23:172-187. [PMID: 35477852 DOI: 10.1016/j.ajg.2022.03.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Revised: 11/17/2021] [Accepted: 03/23/2022] [Indexed: 10/18/2022]
Abstract
BACKGROUND AND STUDY AIMS Dubin-Johnson syndrome (DJS) is a benevolent genetic disorder of the liver with autosomal inheritance. It is a rare disorder characterized by an increase in conjugated bilirubin and anomaly in coproporphyrin clearance. DJS is caused by deleterious mutations in the ABCC2 gene. A polymorphism in the ABCC2 gene causes malfunctions in its ability to regulate the efflux of different organic anions, such as bilirubin, from hepatocytes to the canaliculi. Multidrug resistance protein 2 (MRP2) encoded by the ABCC2 gene is one of the main regulators of the export of bilirubin to respective sites. ABCC2 gene mutations have widely drawn attention in the pathology of DJS in various populations. PATIENTS AND METHODS The ABCC2 gene was subjected to the National Center for Biotechnology Information (NCBI) database in 2020, and non-synonymous single-nucleotide polymorphisms (nsSNPs) and variants in untranslated regions were studied using different computational servers. SIFT, Protein variation effect analyzer, and PolyPhen-2 were used to retrieve the damaging Single-nucleotide polymorphisms (SNPs); PhD-SNP, SNPs&GO, and Protein Analysis Through Evolutionary Relationships were used to predict the association of nsSNPs with DJS; Mutation3D illustrated the location of variants in the protein; SNAP2, MutPred2, ELASPIC, and HOPE were used to predict the structural and functional effects of these mutations on MRP2; and I-mutant 3.0 and MuPro were used to determine the effects of polymorphism on the function of MRP2. RESULTS In this study, 18,947 SNPs were screened from the NCBI database, followed by a series of refinement of variants using online available servers. We concluded that 41 ABCC2 gene variants are vital etiological candidates for DJS in humans. These 41 variants had highly damaging effects on the MRP2 protein, which may lead to deficient transportation capacity, thereby affecting the efflux of bilirubin across the canalicular membrane. CONCLUSION In silico tools are an alternative approach for predicting the target SNPs. Hence, previously unreported variants can be considered strong etiological candidates for diseases related to MRP2.
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Affiliation(s)
- Parul Sharma
- Department of Biotechnology, Thapar Institute of Engineering & Technology, Patiala, India
| | - Siddharth Sharma
- Department of Biotechnology, Thapar Institute of Engineering & Technology, Patiala, India.
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Liu TF, He JJ, Wang L, Zhang LY. Novel ABCB4 mutations in an infertile female with progressive familial intrahepatic cholestasis type 3: A case report. World J Clin Cases 2022; 10:1998-2006. [PMID: 35317165 PMCID: PMC8891790 DOI: 10.12998/wjcc.v10.i6.1998] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/29/2021] [Revised: 11/25/2021] [Accepted: 01/10/2022] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Mutations that occur in the ABCB4 gene, which encodes multidrug-resistant protein 3, underlie the occurrence of progressive familial intrahepatic cholestasis type 3 (PFIC3). Clinical signs of intrahepatic cholestasis due to gene mutations typically first appear during infancy or childhood. Reports of PFIC3 occurring in adults are rare.
CASE SUMMARY This is a case study of a 32-year-old infertile female Chinese patient with a 15-year history of recurrent abnormal liver function. Her primary clinical signs were elevated levels of alkaline phosphatase and γ-glutamyl transpeptidase. Other possible reasons for liver dysfunction were eliminated in this patient, resulting in a diagnosis of PFIC3. The diagnosis was confirmed using gene detection and histological analyses. Assessments using genetic sequencing analysis indicated the presence of two novel heterozygous mutations in the ABCB4 gene, namely, a 2950C>T; p.A984V mutation (exon 24) and a 667A>G; p.I223V mutation (exon 7). After receiving ursodeoxycholic acid (UDCA) treatment, the patient's liver function indices improved, and she successfully became pregnant by in vitro fertilization. However, the patient developed intrahepatic cholestasis of pregnancy in the first trimester. Fortunately, treatment with UDCA was safe and effective.
CONCLUSION These novel ABCB4 heterozygous mutations have a variety of clinical phenotypes. Continued follow-up is essential for a comprehensive understanding of PFIC3.
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Affiliation(s)
- Tian-Fu Liu
- Department of Hepatology, Lanzhou University Second Hospital, Lanzhou 730030, Gansu Province, China
| | - Jing-Jing He
- Department of Hepatology, Lanzhou University Second Hospital, Lanzhou 730030, Gansu Province, China
| | - Liang Wang
- Department of Hepatology, Lanzhou University Second Hospital, Lanzhou 730030, Gansu Province, China
| | - Ling-Yi Zhang
- Department of Hepatology, Lanzhou University Second Hospital, Lanzhou 730030, Gansu Province, China
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Bessone F, Hernandez N, Tagle M, Arrese M, Parana R, Méndez-Sánchez N, Ridruejo E, Mendizabal M, Dagher L, Contreras F, Fassio E, Pessoa M, Brahm J, Silva M. Drug-induced liver injury: A management position paper from the Latin American Association for Study of the liver. Ann Hepatol 2022; 24:100321. [PMID: 33609753 DOI: 10.1016/j.aohep.2021.100321] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Revised: 01/18/2021] [Accepted: 01/18/2021] [Indexed: 02/06/2023]
Abstract
Idiosyncratic drug-induced liver injury (DILI) caused by xenobiotics (drugs, herbals and dietary supplements) is an uncommon cause of liver disease presenting with a wide range of phenotypes and disease severity, acute hepatitis mimicking viral hepatitis to autoimmune hepatitis, steatosis, fibrosis or rare chronic vascular syndromes. Disease severity ranges from asymptomatic liver test abnormalities to acute liver failure. DILI has been traditionally classified in predictable or intrinsic (dose-related) or unpredictable (not dose-related) mechanisms. Few prospective studies are assessing the real prevalence and incidence of hepatotoxicity in the general population. DILI registries represent useful networks used for the study of liver toxicity, aimed at improving the understanding of causes, phenotypes, natural history, and standardized definitions of hepatotoxicity. Although most of the registries do not carry out population-based studies, they may provide important data related to the prevalence of DILI, and also may be useful to compare features from different countries. With the support of the Spanish Registry of Hepatotoxicity, our Latin American Registry (LATINDILI) was created in 2011, and more than 350 DILI patients have been recruited to date. This position paper describes the more frequent drugs and herbs-induced DILI in Latin America, mainly focusing on several features of responsible medicaments. Also, we highlighted the most critical points on the management of hepatotoxicity in general and those based on findings from our Latin American experience in particular.
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Affiliation(s)
- Fernando Bessone
- Hospital Provincial del Centenario, Facultad de Medicina, Universidad Nacional de Rosario, Rosario, Argentina.
| | | | - Martin Tagle
- Universidad Peruana Cayetano Heredia, Lima, Peru
| | - Marco Arrese
- Pontificia Universidad Católica de chile, Santiago de Chile, Chile
| | | | - Nahum Méndez-Sánchez
- Liver Research Unit, Medica Sur Clinic & Foundation, Faculty of Medicine, National Autonomous University of Mexico, Mexico City, Mexico; Liver Research Unit, Medica Sur Clinic & Foundation, Mexico City, Mexico
| | - Ezequiel Ridruejo
- Centro de Educación Médica e Investigaciones Clínicas Norberto Quirno "CEMIC", Buenos Aires, Argentina
| | | | - Lucy Dagher
- Policlínica Metropolitana y CMDLT, Caracas, Venezuela
| | | | - Eduardo Fassio
- Hospital Nacional Prof. Alejandro Posadas, Provincia de Buenos Aires, Argentina
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Kamal NM, Saadah O, Alghamdi H, Algarni A, El-Shabrawi MHF, Sherief LM, Abosabie SAS. Case Report: Dubin-Johnson Syndrome Presenting With Infantile Cholestasis: An Overlooked Diagnosis in an Extended Family. Front Pediatr 2022; 10:855210. [PMID: 35692971 PMCID: PMC9176751 DOI: 10.3389/fped.2022.855210] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Accepted: 03/31/2022] [Indexed: 01/18/2023] Open
Abstract
Dubin-Johnson syndrome (DJS) is an often-missed diagnosis of neonatal cholestasis. We report two patients with DJS, who presented with neonatal cholestasis. The first patient underwent extensive investigations for infantile cholestasis with no definitive etiology reached; the diagnosis of DJS was missed until the age of 14 years old. The diagnosis was confirmed genetically with c.2273G > T, p.G758V mutation in exon 18 of the ABCC2 gene. The 2nd patient is a 7-day-old baby, the son of the 1st patient who gave birth to him at the age of 21 years old. He was diagnosed with DJS at the age of 2 weeks based on normal clinical and laboratory workup apart from direct hyperbilirubinemia. He had the same mutation as his mother in homozygous status. The husband was heterozygous for the same mutation. DJS is one of the often-missed differential diagnoses of neonatal cholestasis. It should be suspected in patients of infantile cholestasis, who have an, otherwise, normal physical examination, and laboratory investigations to avoid unnecessary lengthy, invasive, and expensive workups.
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Affiliation(s)
- Naglaa M Kamal
- Department of Pediatrics and Pediatric Hepatology, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Omar Saadah
- Department of Pediatrics, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Hamdan Alghamdi
- Department of Pediatrics, Alhada Armed Forces Hospital, Taif, Saudi Arabia
| | - Ali Algarni
- Department of Pediatrics, Taif Children Hospital, Taif, Saudi Arabia
| | - Mortada H F El-Shabrawi
- Department of Pediatrics and Pediatric Hepatology, Faculty of Medicine, Cairo University, Cairo, Egypt
| | | | - Salma A S Abosabie
- Faculty of Medicine, Julius-Maximilians-Universität Würzburg, Würzburg, Germany
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Shi M, Sheng L, Lian M, Miao Q, Wang Q, Xiao X, Ma X. Efficacy and safety of rifampicin in patients with persistent hepatocellular secretory failure. J Gastroenterol Hepatol 2021; 36:3233-3238. [PMID: 34278601 DOI: 10.1111/jgh.15629] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/13/2020] [Revised: 06/14/2021] [Accepted: 07/05/2021] [Indexed: 12/16/2022]
Abstract
BACKGROUND AND AIM Persistent hepatocellular secretory failure (PHSF) is a rare condition of severe cholestasis caused by drugs, toxins, infection, or temporary biliary obstruction. Real-world data on rifampicin in cholestasis, particularly among patients with deep jaundice, are scarce. We aimed to expand the knowledge on the efficacy and safety of rifampicin treatment in PHSF patients. METHODS Sixteen patients with PHSF who had received rifampicin treatment (150-300 mg/d) at our institution from September 2016 to July 2020 were included. Treatment efficacy was assessed by 20% improvement in serum total bilirubin (TBIL) concentration at 4 weeks. Follow-up was continued until the concentration of TBIL returned to normal. RESULTS Among the 16 enrolled patients, 12 had predisposing factors (drugs, infection, or transient biliary obstruction). ATP8B1 or ABCB11 mutations were detected in the other four patients without trigger events. UGT1A1 mutations were found in 7/10 patients. Before rifampicin treatment, the median TBIL level was 352 μmol/L (range 171-591 μmol/L). TBIL > 20% improvement was observed in 14 patients at 4 weeks. TBIL levels of 14 patients eventually returned to normal after 6-12 weeks of rifampicin treatment. The remaining two patients who did not respond to rifampicin finally recovered after nasobiliary drainage. Except for one patient with transient drug-induced hepatitis, no other serious adverse events were observed. CONCLUSIONS Rifampicin could be a promising option for most PHSF patients. Most PHSF patients have UGT1A1 deficiency, which may be the target of rifampicin.
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Affiliation(s)
- Mingxia Shi
- Department of Gastroenterology and Hepatology, Key Laboratory of Gastroenterology and Hepatology, Ministry of Health, State Key Laboratory for Oncogenes and Related Genes, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Li Sheng
- Department of Gastroenterology and Hepatology, Key Laboratory of Gastroenterology and Hepatology, Ministry of Health, State Key Laboratory for Oncogenes and Related Genes, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Min Lian
- Department of Gastroenterology and Hepatology, Key Laboratory of Gastroenterology and Hepatology, Ministry of Health, State Key Laboratory for Oncogenes and Related Genes, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Qi Miao
- Department of Gastroenterology and Hepatology, Key Laboratory of Gastroenterology and Hepatology, Ministry of Health, State Key Laboratory for Oncogenes and Related Genes, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Qixia Wang
- Department of Gastroenterology and Hepatology, Key Laboratory of Gastroenterology and Hepatology, Ministry of Health, State Key Laboratory for Oncogenes and Related Genes, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Xiao Xiao
- Department of Gastroenterology and Hepatology, Key Laboratory of Gastroenterology and Hepatology, Ministry of Health, State Key Laboratory for Oncogenes and Related Genes, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Xiong Ma
- Department of Gastroenterology and Hepatology, Key Laboratory of Gastroenterology and Hepatology, Ministry of Health, State Key Laboratory for Oncogenes and Related Genes, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
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20
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Chen H, Wu D, Jiang W, Lei T, Lu C, Zhou T. Case Report: A Novel Homozygous Variant Identified in a Chinese Patient With Benign Recurrent Intrahepatic Cholestasis-Type 1. Front Med (Lausanne) 2021; 8:705489. [PMID: 34485338 PMCID: PMC8416249 DOI: 10.3389/fmed.2021.705489] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Accepted: 07/27/2021] [Indexed: 02/05/2023] Open
Abstract
Benign recurrent intrahepatic cholestasis (BRIC) is a rare hereditary cholestatic liver disorder. Accurate diagnosis and timely interventions are important in determining outcomes. Besides clinical and pathologic diagnosis, genetic study of BRIC remains limited. Here, we report a young man enduring recurrent jaundice and severe pruritus for 15 years. The increased level of direct bilirubin was the main biochemical abnormality, and the work-up for common causes of jaundice were unremarkable. Liver biopsy showed extensive cholestasis of hepatocytes in zone 3. The novel homozygous variant including c.1817T > C and p.I606T was detected on his ATP8B1gene. The patient was finally diagnosed with BRIC-1. His symptoms were relieved, and liver function tests returned to normal after taking ursodeoxycholic acid. This case provides a different perspective to the methodology employed when dealing with cases of jaundice and helping diagnose rare diseases.
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Affiliation(s)
- Huayu Chen
- Center of Infectious Diseases, West China Hospital, Sichuan University, Chengdu, China
| | - Dongbo Wu
- Center of Infectious Diseases, West China Hospital, Sichuan University, Chengdu, China
| | - Wei Jiang
- Center of Infectious Diseases, West China Hospital, Sichuan University, Chengdu, China
| | - Ting Lei
- Center of Infectious Diseases, West China Hospital, Sichuan University, Chengdu, China
| | - Changli Lu
- Department of Pathology, West China Hospital, Sichuan University, Chengdu, China
| | - Taoyou Zhou
- Center of Infectious Diseases, West China Hospital, Sichuan University, Chengdu, China
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21
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Tang J, Tan M, Deng Y, Tang H, Shi H, Li M, Ma W, Li J, Dai H, Li J, Zhou S, Li X, Wei F, Ma X, Luo L. Two Novel Pathogenic Variants of TJP2 Gene and the Underlying Molecular Mechanisms in Progressive Familial Intrahepatic Cholestasis Type 4 Patients. Front Cell Dev Biol 2021; 9:661599. [PMID: 34504838 PMCID: PMC8421653 DOI: 10.3389/fcell.2021.661599] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Accepted: 07/09/2021] [Indexed: 12/13/2022] Open
Abstract
Progressive familial intrahepatic cholestasis (PFIC) is an autosomal recessive inherited disease that accounts for 10%-15% childhood cholestasis and could lead to infant disability or death. There are three well-established types of PFIC (1-3), caused by mutations in the ATP8B1, ABCB11, and ABCB4 genes. Biallelic pathogenic variants in the tight junction protein 2 gene (TJP2) were newly reported as a cause for PFIC type 4; however, only a limited number of patients and undisputable variants have been reported for TJP2, and the underlying mechanism for PFIC 4 remains poorly understood. To explore the diagnostic yield of TJP2 analysis in suspected PFIC patients negative for the PFIC1-3 mutation, we designed a multiplex polymerase chain reaction-based next-generation sequencing method to analyze TJP2 gene variants in 267 PFIC patients and identified biallelic rare variants in three patients, including three known pathogenic variants and two novel variants in three patients. By using CRISPR-cas9 technology, we demonstrated that TJP2 c.1202A > G was pathogenic at least partially by increasing the expression and nuclear localization of TJP2 protein. With the minigene assay, we showed that TJP2 c.2668-11A > G was a new pathogenic variant by inducing abnormal splicing of TJP2 gene and translation of prematurely truncated TJP2 protein. Furthermore, knockdown of TJP2 protein by siRNA technology led to inhibition of cell proliferation, induction of apoptosis, dispersed F-actin, and disordered microfilaments in LO2 and HepG2celles. Global gene expression profiling of TJP2 knockdown LO2 cells and HepG2 cells identified the dysregulated genes involved in the regulation of actin cytoskeleton. Microtubule cytoskeleton genes were significantly downregulated in TJP2 knockdown cells. The results of this study demonstrate that TJP2 c.1202A > G and TJP2 c.2668-11A > G are two novel pathogenic variants and the cytoskeleton-related functions and pathways might be potential molecular pathogenesis for PFIC.
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Affiliation(s)
- Jia Tang
- NHC Key Laboratory of Male Reproduction and Genetics, Guangdong Provincial Reproductive Science Institute (Guangdong Provincial Fertility Hospital), Guangzhou, China
- Department of Medical Imaging Center, The First Affiliated Hospital of Jinan University, Jinan University, Guangzhou, China
- Medical Genetics Center, Jiangmen Maternity and Child Health Care Hospital, Jiangmen, China
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, United States
| | - Meihua Tan
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing, China
- BGI Genomics Co., Ltd., Shenzhen, China
| | - Yihui Deng
- Department of Medical Imaging Center, The First Affiliated Hospital of Jinan University, Jinan University, Guangzhou, China
| | - Hui Tang
- Department of Medical Imaging Center, The First Affiliated Hospital of Jinan University, Jinan University, Guangzhou, China
| | - Haihong Shi
- Medical Genetics Center, Jiangmen Maternity and Child Health Care Hospital, Jiangmen, China
| | - Mingzhen Li
- NHC Key Laboratory of Male Reproduction and Genetics, Guangdong Provincial Reproductive Science Institute (Guangdong Provincial Fertility Hospital), Guangzhou, China
| | - Wei Ma
- Department of Biology, School of Basic Medicine, Jiamusi University, Jiamusi, China
| | - Jia Li
- BGI Genomics Co., Ltd., Shenzhen, China
| | - Hongzheng Dai
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, United States
| | - Jianli Li
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, United States
| | - Shengmei Zhou
- Department of Pathology and Laboratory Medicine, Children’s Hospital Los Angeles, Los Angeles, CA, United States
| | - Xu Li
- Key Laboratory of Structural Biology of Zhejiang Province, School of Life Sciences, Westlake University, Hangzhou, China
| | - Fengxiang Wei
- Longgang District Maternity & Child Healthcare Hospital of Shenzhen City, Shenzhen, China
| | - Xiaofen Ma
- Department of Medical Imaging of Guangdong Second Provincial General Hospital, Guangzhou, China
| | - Liangping Luo
- Department of Medical Imaging Center, The First Affiliated Hospital of Jinan University, Jinan University, Guangzhou, China
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Li Q, Chong C, Sun R, Yin T, Huang T, Diao M, Li L. Long-term outcome following cholecystocolostomy in 41 patients with progressive familial intrahepatic cholestasis. Pediatr Surg Int 2021; 37:723-730. [PMID: 33651176 DOI: 10.1007/s00383-021-04871-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 02/13/2021] [Indexed: 11/25/2022]
Abstract
PURPOSE Progressive familial intrahepatic cholestasis (PFIC) is a cohort of autosomal recessive syndromes which presents with jaundice, severe pruritus and liver derangement. Without treatments, patients progress to liver failure in early childhood. Biliary diversion strategies have been deployed to interrupt enterohepatic circulation to alleviate symptoms and delay progression to cirrhosis. Cholecystocolostomy has been the diversion method of choice at our institution and we aim to evaluate its long-term outcome. METHODS All patients with PFIC who underwent cholecystocolostomy between August 2003 to May 2019 were included. PFIC diagnosed by clinical course, serum liver biochemistry and genotyping excluding other causes of cholestasis. All patients received ursodeoxycholic acid prior to biliary diversion. Those without long-term follow-up were excluded. Long-term follow-up conducted with physical examination, abdominal ultrasonography, liver function tests, contrast enema studies and colonoscopies. Outcome analysis was performed with patients divided into three groups according to their postoperative responses. RESULTS 58 children underwent cholecystocolostomy, 41 were included in the study. Overall survival rate was 73.2% without a liver transplant. Survival improved to 81.1% in those without cirrhosis. 83.3% of those without a transplant was to no longer need any medication after their cholecystocolostomy. Recurrent cholestasis was seen in those with constipation (n = 8), ascending cholangitis (n = 10), intrahepatic reflux from Y-loop (n = 3) and cystic duct stenosis (n = 4). CONCLUSION Cholecystocolostomy is a safe and effective technique for treatment of cholestasis in PFIC patients without cirrhosis. Careful monitoring and proactive management of postoperative constipation and ascending cholangitis is required to prevent stenosis of the cystic duct leading to recurrent cholestasis.
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Affiliation(s)
- Qianqing Li
- Department of Pediatric Surgery, Capital Institute of Pediatrics-Peking University Teaching Hospital, No. 2 Yabao Road, Beijing, 100020, China
| | - Clara Chong
- Department of Pediatric Surgery, Southampton General Hospital, Coxford Road, Southampton, SO16 5YA, UK
| | - Rui Sun
- Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
| | - Tong Yin
- Department of Pediatric Surgery, Capital Institute of Pediatrics-Peking University Teaching Hospital, No. 2 Yabao Road, Beijing, 100020, China
| | - Ting Huang
- Department of Pediatric Surgery, Children's Hospital Capital Institute of Pediatrics, Graduate School of Peking Union Medical College, Beijing, 100020, China
| | - Mei Diao
- Department of Pediatric Surgery, Capital Institute of Pediatrics-Peking University Teaching Hospital, No. 2 Yabao Road, Beijing, 100020, China.
| | - Long Li
- Department of Pediatric Surgery, Capital Institute of Pediatrics-Peking University Teaching Hospital, No. 2 Yabao Road, Beijing, 100020, China.
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23
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Khabou B, Hsairi M, Gargouri L, Miled N, Barbu V, Fakhfakh F. Characterization of a novel ABCC2 mutation in infantile Dubin Johnson syndrome. Clin Chim Acta 2021; 518:43-50. [PMID: 33713692 DOI: 10.1016/j.cca.2021.03.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Revised: 03/06/2021] [Accepted: 03/07/2021] [Indexed: 12/11/2022]
Abstract
BACKGROUND AND AIMS The Dubin Johnson Syndrome (DJS) occurs mostly in young adults but an early-onset of the disease has been reported in less common forms (Neonatal DJS and Infantile DJS). In this case, the clinical findings are of limit for the DJS diagnosis. Hence, the genetic testing remains the method of choice to provide an accurate diagnosis. In our study, we aimed to perform a genetic analysis for two siblings presented with an intrahepatic cholestasis before the age of 1 year to provide a molecular explanation for the developed phenotype. PATIENTS & METHODS A Tunisian family, having two siblings, manifesting signs of a hepatopathy, was enrolled in our study. A molecular analysis was performed, using a panel-based next generation sequencing, supplying results that were the subject of computational analysis. Then, a clinical follow-up was carried out to assess the evolution of the disease. RESULTS The genetic analysis revealed the presence of a novel missense c.4179G > T, (p.M1393I) mutation in ABCC2 gene associated with a substitution c.2789G > A (R930Q) in ATP8B1 gene. Predictive results consolidated the pathogenic effect of both variants. These results confirmed the DJS diagnosis in the studied patients. The clinical course of both patients fit well with the benign nature of DJS. CONCLUSION We described here a novel ABCC2 mutation associated with a putative ATP8B1 modifier variant. This finding constituted the first report of a complex genotype in DJS. Hence, genetic analysis by a panel-based next generation sequencing permits an accurate diagnosis and the identification of putative variants that could influence the developed phenotype.
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Affiliation(s)
- Boudour Khabou
- Laboratory of Molecular and Functional Genetics, Faculty of Science, University of Sfax, Tunisia.
| | - Manel Hsairi
- Department of Pediatrics, Pediatric Emergency and Intensive Care, Hedi Chaker Hospital, Faculty of Medicine, Sfax, Tunisia
| | - Lamia Gargouri
- Department of Pediatrics, Pediatric Emergency and Intensive Care, Hedi Chaker Hospital, Faculty of Medicine, Sfax, Tunisia
| | - Nabil Miled
- University of Jeddah, College of Science, Department of Biological Sciences, Saudi Arabia; University of Sfax, Higher Institute of Biotechnology, Unit of Plant Physiology and Functional Genomics, Sfax, Tunisia
| | - Véronique Barbu
- LCBGM, Medical Biology and Pathology Department, APHP, HUEP, St Antoine Hospital, & Sorbonne University, 75012 Paris, France
| | - Faiza Fakhfakh
- Laboratory of Molecular and Functional Genetics, Faculty of Science, University of Sfax, Tunisia.
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Cholangiogenic potential of human deciduous pulp stem cell-converted hepatocyte-like cells. Stem Cell Res Ther 2021; 12:57. [PMID: 33436050 PMCID: PMC7805240 DOI: 10.1186/s13287-020-02113-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Accepted: 12/21/2020] [Indexed: 12/11/2022] Open
Abstract
Background Stem cells from human exfoliated deciduous teeth (SHED) have been reported to show the in vivo and in vitro hepatic differentiation, SHED-Heps; however, the cholangiogenic potency of SHED-Heps remains unclear. Here, we hypothesized that SHED-Heps contribute to the regeneration of intrahepatic bile duct system in chronic fibrotic liver. Methods SHED were induced into SHED-Heps under cytokine stimulation. SHED-Heps were intrasplenically transplanted into chronically CCl4-treated liver fibrosis model mice, followed by the analysis of donor integration and hepatobiliary metabolism in vivo. Immunohistochemical assay was examined for the regeneration of intrahepatic bile duct system in the recipient liver. Furthermore, SHED-Heps were induced under the stimulation of tumor necrosis factor alpha (TNFA). Results The intrasplenic transplantation of SHED-Heps into CCl4-treated mice showed that donor SHED-Heps behaved as human hepatocyte paraffin 1- and human albumin-expressing hepatocyte-like cells in situ and ameliorated CCl4-induced liver fibrosis. Of interest, the integrated SHED-Heps not only expressed biliary canaliculi ATP-binding cassette transporters including ABCB1, ABCB11, and ABCC2, but also recruited human keratin 19- (KRT19-) and KRT17-positive cells, which are considered donor-derived cholangiocytes, regenerating the intrahepatic bile duct system in the recipient liver. Furthermore, the stimulation of TNFA induced SHED-Heps into KRT7- and SRY-box 9-positive cells. Conclusions Collectively, our findings demonstrate that infused SHED-Heps showed cholangiogenic ability under the stimulation of TNFA in CCl4-damaged livers, resulting in the regeneration of biliary canaliculi and interlobular bile ducts in chronic fibrotic liver. Thus, the present findings suggest that SHED-Heps may be a novel source for the treatment of cholangiopathy. Supplementary Information The online version contains supplementary material available at 10.1186/s13287-020-02113-8.
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25
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Hague WM, Callaway L, Chambers J, Chappell L, Coat S, de Haan-Jebbink J, Dekker M, Dixon P, Dodd J, Fuller M, Gordijn S, Graham D, Heikinheimo O, Hennessy A, Kaaja R, Khong TY, Lampio L, Louise J, Makris A, Markus C, Marschall HU, Middleton P, Mol BW, Morris J, Newnham JP, Ovadia C, Peek M, Shand A, Stark M, Thornton J, Timonen S, Walker S, Warrilow D, Williamson C. A multi-centre, open label, randomised, parallel-group, superiority Trial to compare the efficacy of URsodeoxycholic acid with RIFampicin in the management of women with severe early onset Intrahepatic Cholestasis of pregnancy: the TURRIFIC randomised trial. BMC Pregnancy Childbirth 2021; 21:51. [PMID: 33435904 PMCID: PMC7802989 DOI: 10.1186/s12884-020-03481-y] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Accepted: 12/04/2020] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Severe early onset (less than 34 weeks gestation) intrahepatic cholestasis of pregnancy (ICP) affects 0.1% of pregnant women in Australia and is associated with a 3-fold increased risk of stillbirth, fetal hypoxia and compromise, spontaneous preterm birth, as well as increased frequencies of pre-eclampsia and gestational diabetes. ICP is often familial and overlaps with other cholestatic disorders. Treatment options for ICP are not well established, although there are limited data to support the use of ursodeoxycholic acid (UDCA) to relieve pruritus, the main symptom. Rifampicin, a widely used antibiotic including in pregnant women, is effective in reducing pruritus in non-pregnancy cholestasis and has been used as a supplement to UDCA in severe ICP. Many women with ICP are electively delivered preterm, although there are no randomised data to support this approach. METHODS We have initiated an international multicentre randomised clinical trial to compare the clinical efficacy of rifampicin tablets (300 mg bd) with that of UDCA tablets (up to 2000 mg daily) in reducing pruritus in women with ICP, using visual pruritus scores as a measuring tool. DISCUSSION Our study will be the first to examine the outcomes of treatment specifically in the severe early onset form of ICP, comparing "standard" UDCA therapy with rifampicin, and so be able to provide for the first-time high-quality evidence for use of rifampicin in severe ICP. It will also allow an assessment of feasibility of a future trial to test whether elective early delivery in severe ICP is beneficial. TRIAL IDENTIFIERS Australian New Zealand Clinical Trials Registration Number (ANZCTR): 12618000332224p (29/08/2018). HREC No: HREC/18/WCHN/36. EudraCT number: 2018-004011-44. IRAS: 272398. NHMRC registration: APP1152418 and APP117853.
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Affiliation(s)
- William M Hague
- Robinson Research Institute, The University of Adelaide, 55 King William Road, North Adelaide, 5006, South Australia, Australia.
- Obstetric Medicine, Women's and Babies' Division, Women's and Children's Hospital, 72 King William Road, North Adelaide, South Australia, 5006, Australia.
| | - Leonie Callaway
- Gynaecology, Oncology & Obstetric Medicine, Royal Brisbane and Women's Hospital, Herston, 4029, Queensland, Australia
- The University of Queensland, Brisbane, 4072, Queensland, Australia
| | - Jennifer Chambers
- Women and Children's Health, King's College London, St Thomas' Hospital, Westminster Bridge Road, London, SE1 7EH, UK
| | - Lucy Chappell
- Women and Children's Health, King's College London, St Thomas' Hospital, Westminster Bridge Road, London, SE1 7EH, UK
| | - Suzette Coat
- Robinson Research Institute, The University of Adelaide, 55 King William Road, North Adelaide, 5006, South Australia, Australia
| | - Jiska de Haan-Jebbink
- Dutch Consortium for Healthcare Evaluation in Obstetrics and Gynaecology (NVOG Consortium), Postbus 20075, Utrecht, 3502 LB, The Netherlands
| | - Marloes Dekker
- The University of Queensland, Brisbane, 4072, Queensland, Australia
| | - Peter Dixon
- Women and Children's Health, King's College London, St Thomas' Hospital, Westminster Bridge Road, London, SE1 7EH, UK
| | - Jodie Dodd
- Robinson Research Institute, The University of Adelaide, 55 King William Road, North Adelaide, 5006, South Australia, Australia
| | - Maria Fuller
- Robinson Research Institute, The University of Adelaide, 55 King William Road, North Adelaide, 5006, South Australia, Australia
- SA Pathology, Women's and Children's Hospital, 72 King William Road, North Adelaide, 5006, South Australia, Australia
| | - Sanne Gordijn
- Dutch Consortium for Healthcare Evaluation in Obstetrics and Gynaecology (NVOG Consortium), Postbus 20075, Utrecht, 3502 LB, The Netherlands
| | - Dorothy Graham
- University of Western Australia Division of Obstetrics and Gynaecology, King Edward Memorial Hospital, PO Box 134, Subiaco, Perth, 6904, Western Australia, Australia
| | - Oskari Heikinheimo
- Women's Hospital, University of Helsinki and Helsinki University Hospital, P.O. Box 140, Haartmaninkatu 2, Helsinki, HUS 00029, Finland
| | - Annemarie Hennessy
- School of Medicine, Campbelltown Campus, University of Western Sydney, Narellan Rd, Campbelltown, 2560, NSW, Australia
| | - Risto Kaaja
- Department of Obstetrics and Gynaecology, Turku University Hospital (TYKS), PO Box 52, Turku, 20521, Finland
| | - Teck Yee Khong
- Robinson Research Institute, The University of Adelaide, 55 King William Road, North Adelaide, 5006, South Australia, Australia
- SA Pathology, Women's and Children's Hospital, 72 King William Road, North Adelaide, 5006, South Australia, Australia
| | - Laura Lampio
- School of Medicine, Campbelltown Campus, University of Western Sydney, Narellan Rd, Campbelltown, 2560, NSW, Australia
| | - Jennie Louise
- Robinson Research Institute, The University of Adelaide, 55 King William Road, North Adelaide, 5006, South Australia, Australia
| | - Angela Makris
- Women's Hospital, University of Helsinki and Helsinki University Hospital, P.O. Box 140, Haartmaninkatu 2, Helsinki, HUS 00029, Finland
| | - Corey Markus
- SA Pathology, Women's and Children's Hospital, 72 King William Road, North Adelaide, 5006, South Australia, Australia
- Flinders University International Centre for Point-of-Care Testing, College of Medicine & Public Health, GPO Box 2100, Sturt Road, Bedford Park, South Australia, 5042, Australia
| | | | - Philippa Middleton
- Robinson Research Institute, The University of Adelaide, 55 King William Road, North Adelaide, 5006, South Australia, Australia
- SAHMRI Women and Kids, South Australian Health and Medical Research Institute, PO Box 11060, Adelaide, 5001, South Australia, Australia
| | - Ben W Mol
- Obstetrics & Gynaecology Monash Health, Monash University, Clayton, 3800, Victoria, Australia
| | - Jonathan Morris
- Paediatrics and Reproductive Medicine, The University of Sydney, Sydney, 2006, New South Wales, Australia
| | - John P Newnham
- University of Western Australia Division of Obstetrics and Gynaecology, King Edward Memorial Hospital, PO Box 134, Subiaco, Perth, 6904, Western Australia, Australia
| | - Caroline Ovadia
- Women and Children's Health, King's College London, St Thomas' Hospital, Westminster Bridge Road, London, SE1 7EH, UK
| | - Michael Peek
- Obstetrics and Gynaecology, Australian National University Medical School, The Canberra Hospital, PO Box 11, Woden, 2606, Australian Capital Territory, Australia
| | - Antonia Shand
- Paediatrics and Reproductive Medicine, The University of Sydney, Sydney, 2006, New South Wales, Australia
| | - Michael Stark
- Robinson Research Institute, The University of Adelaide, 55 King William Road, North Adelaide, 5006, South Australia, Australia
- Obstetric Medicine, Women's and Babies' Division, Women's and Children's Hospital, 72 King William Road, North Adelaide, South Australia, 5006, Australia
| | - Jim Thornton
- Obstetrics and Gynaecology, Nottingham University Hospitals NHS Trust, Queen's Medical Centre, Derby Rd, Nottingham, NG7 2UH, UK
| | - Susanna Timonen
- Department of Obstetrics and Gynaecology, Turku University Hospital (TYKS), PO Box 52, Turku, 20521, Finland
| | - Susan Walker
- Department of Obstetrics and Gynaecology, University of Melbourne, Mercy Hospital for Women, 163 Studley Road, Heidelberg, 3084, Victoria, Australia
| | - David Warrilow
- Public Health Virology Laboratory, Public and Environmental Health, Forensic and Scientific Services, Health Support Queensland, Department of Health, 39 Kessels Road, Coopers Plains, 4108, Queensland, Australia
| | - Catherine Williamson
- Women and Children's Health, King's College London, St Thomas' Hospital, Westminster Bridge Road, London, SE1 7EH, UK
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Goubran M, Aderibigbe A, Jacquemin E, Guettier C, Girgis S, Bain V, Mason AL. Case report: progressive familial intrahepatic cholestasis type 3 with compound heterozygous ABCB4 variants diagnosed 15 years after liver transplantation. BMC MEDICAL GENETICS 2020; 21:238. [PMID: 33256620 PMCID: PMC7708126 DOI: 10.1186/s12881-020-01173-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/25/2020] [Accepted: 11/12/2020] [Indexed: 12/16/2022]
Abstract
BACKGROUND Progressive familial intrahepatic cholestasis (PFIC) type 3 is an autosomal recessive disorder arising from mutations in the ATP-binding cassette subfamily B member 4 (ABCB4) gene. This gene encodes multidrug resistance protein-3 (MDR3) that acts as a hepatocanalicular floppase that transports phosphatidylcholine from the inner to the outer canalicular membrane. In the absence of phosphatidylcholine, the detergent activity of bile salts is amplified and this leads to cholangiopathy, bile duct loss and biliary cirrhosis. Patients usually present in infancy or childhood and often progress to end-stage liver disease before adulthood. CASE PRESENTATION We report a 32-year-old female who required cadaveric liver transplantation at the age of 17 for cryptogenic cirrhosis. When the patient developed chronic ductopenia in the allograft 15 years later, we hypothesized that the patient's original disease was due to a deficiency of a biliary transport protein and the ductopenia could be explained by an autoimmune response to neoantigen that was not previously encountered by the immune system. We therefore performed genetic analyses and immunohistochemistry of the native liver, which led to a diagnosis of PFIC3. However, there was no evidence of humoral immune response to the MDR3 and therefore, we assumed that the ductopenia observed in the allograft was likely due to chronic rejection rather than autoimmune disease in the allograft. CONCLUSIONS Teenage patients referred for liver transplantation with cryptogenic liver disease should undergo work up for PFIC3. An accurate diagnosis of PFIC 3 is key for optimal management, therapeutic intervention, and avoidance of complications before the onset of end-stage liver disease.
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Affiliation(s)
- Mariam Goubran
- Department of Medicine, University of Alberta Hospital, Edmonton, Canada
| | - Ayodeji Aderibigbe
- Department of Medicine, University of Alberta Hospital, Edmonton, Canada
| | - Emmanuel Jacquemin
- Paediatric Hepatology & Paediatric Liver Transplant Department, Reference Center for Rare Paediatric Liver Diseases, FILFOIE, ERN RARE LIVER, Assistance Publique-Hôpitaux de Paris, Faculty of Medicine and University Paris-Saclay, CHU Bicêtre, Le Kremlin-Bicêtre, France
| | - Catherine Guettier
- Pathology Department, Assistance Publique-Hôpitaux de Paris, Faculty of Medicine and University Paris-Saclay, CHU Bicêtre, Le Kremlin-Bicêtre, France
| | - Safwat Girgis
- Department of Laboratory Medicine and Pathology, University of Alberta Hospital, Edmonton, Canada
| | - Vincent Bain
- Department of Medicine, University of Alberta Hospital, Edmonton, Canada
| | - Andrew L Mason
- Department of Medicine, University of Alberta Hospital, Edmonton, Canada.
- Division of Gastroenterology, 7-142 KGR, University of Alberta, Edmonton, Alberta, T6G 2E1, Canada.
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Itoh M, Terada M, Sugimoto H. The zonula occludens protein family regulates the hepatic barrier system in the murine liver. Biochim Biophys Acta Mol Basis Dis 2020; 1867:165994. [PMID: 33184034 DOI: 10.1016/j.bbadis.2020.165994] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 10/05/2020] [Accepted: 10/19/2020] [Indexed: 12/14/2022]
Abstract
The hepatic barrier is indispensable for the physiological functions of the liver and is impaired under various pathological conditions. Tight junctions reportedly play a central role in hepatic barrier regulation; however, there is limited direct evidence supporting this observation, with few in vivo models or confirmations of the implicated molecular mechanisms presented to date. We inactivated the tight junction component gene, Tjp2/ZO-2, and the related molecule, Tjp1/ZO-1, in mouse livers. In humans, TJP2/ZO-2 mutations have been implicated in the development of human progressive familial intrahepatic cholestasis 4 (PFIC4). The mice deficient in either ZO-1 or ZO-2 in the liver did not exhibit major abnormalities. However, the ablation of both molecules impaired the molecular architecture as well as the structure and function of hepatocyte tight junctions, which disrupted the hepatic barrier and was lethal to the mice by 6 weeks of age. In mutant mice, bile canaliculus formation and cellular polarity were compromised; also, transporter expression and localization were deregulated. Moreover, typical hepatic zonation and bile duct formation were inhibited, and sinusoidal vessels were disorganized. These findings clarify the role of tight junctions and polarity in the hepatic barrier as well as the effect that their disruption has on liver tissue. The observations also suggest that liver-specific ZO-1-/- and ZO-2-/- mice could be used as models for PFIC4, and this will provide new insights into liver pathophysiology and clinical applications.
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Affiliation(s)
- Masahiko Itoh
- Department of Biochemistry, School of Medicine, Dokkyo Medical University, Tochigi, Japan.
| | - Misao Terada
- Laboratory Animal Research Center, Dokkyo Medical University, Tochigi, Japan
| | - Hiroyuki Sugimoto
- Department of Biochemistry, School of Medicine, Dokkyo Medical University, Tochigi, Japan
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28
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Alhebbi H, Peer-Zada AA, Al-Hussaini AA, Algubaisi S, Albassami A, AlMasri N, Alrusayni Y, Alruzug IM, Alharby E, Samman MA, Ayoub SZ, Maddirevula S, Peake RWA, Alkuraya FS, Wali S, Almontashiri NAM. New paradigms of USP53 disease: normal GGT cholestasis, BRIC, cholangiopathy, and responsiveness to rifampicin. J Hum Genet 2020; 66:151-159. [PMID: 32759993 DOI: 10.1038/s10038-020-0811-1] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Revised: 06/15/2020] [Accepted: 07/14/2020] [Indexed: 02/07/2023]
Abstract
Biallelic variants in the USP53 gene have recently been reported to segregate with normal gamma glutamyltransferase (GGT) cholestasis. Using whole-exome sequencing (WES), we detected two USP53 homozygous variants (c.951delT; p. Phe317fs and c.1744C>T; p. Arg582*) in five additional cases, including an unpublished cousin of a previously described family with intractable itching and normal GGT cholestasis. Three patients, a child and two adults, presented with recurrent episodes of normal GGT cholestasis, consistent with a diagnosis of benign recurrent intrahepatic cholestasis (BRIC). Cholangiopathic changes, possibly autoimmune in origin, were recognized in some patients. Additional phenotypic details in one patient included an enlarged left kidney, and speech/developmental delay. Notably, two patients exhibited a complete response to rifampicin, and one responded to ursodeoxycholic acid (UDCA). Two adult patients were suspected to have autoimmune liver disease and treated with steroids. This report describes new cases of USP53 disease presenting with normal GGT cholestasis or BRIC in three children and two adults. We also describe the novel finding of a dramatic response to rifampicin. The association of cholangiopathy with normal GGT cholestasis provides a diagnostic challenge and remains poorly understood.
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Affiliation(s)
- Hamoud Alhebbi
- Department of Pediatrics, Division of Gastroenterology and Hepatology, Prince Sultan Military Medical City, Riyadh, Saudi Arabia
| | - Abdul Ali Peer-Zada
- Molecular Pathology, Pathology and Clinical Laboratory Medicine Administration, King Fahad Medical City, Riyadh, Saudi Arabia
| | - Abdulrahman A Al-Hussaini
- Pediatric Gastroenterology Division, Children's Specialized Hospital at King Fahad Medical City, Riyadh, Saudi Arabia.,College of Medicine, Alfaisal University, Riyadh, Saudi Arabia
| | - Sara Algubaisi
- Department of Pediatrics, Division of Gastroenterology and Hepatology, Prince Sultan Military Medical City, Riyadh, Saudi Arabia
| | - Awad Albassami
- Department of Pediatrics, Division of Gastroenterology and Hepatology, Prince Sultan Military Medical City, Riyadh, Saudi Arabia
| | - Nasser AlMasri
- Department of Adult Gastroenterology and Hepatology, Prince Sultan Military Medical City, Riyadh, Saudi Arabia
| | - Yasir Alrusayni
- Department of Pathology, Prince Sultan Military Medical City, Riyadh, Saudi Arabia
| | - Ibrahim M Alruzug
- Department of Adult Gastroenterology and Hepatology, King Saud Medical City, Riyadh, Saudi Arabia
| | - Essa Alharby
- Center for Genetics and Inherited Diseases, Taibah University, Almadinah Almunwarah, Saudi Arabia
| | - Manar A Samman
- Molecular Pathology, Pathology and Clinical Laboratory Medicine Administration, King Fahad Medical City, Riyadh, Saudi Arabia
| | - Syed Zubair Ayoub
- Molecular Pathology, Pathology and Clinical Laboratory Medicine Administration, King Fahad Medical City, Riyadh, Saudi Arabia
| | - Sateesh Maddirevula
- Department of Genetics, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia
| | - Roy W A Peake
- Department of Laboratory Medicine, Boston Children's Hospital, 300 Longwood Ave., Boston, MA, 02115, USA
| | - Fowzan S Alkuraya
- College of Medicine, Alfaisal University, Riyadh, Saudi Arabia.,Department of Genetics, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia
| | - Sami Wali
- Department of Pediatrics, Division of Gastroenterology and Hepatology, Prince Sultan Military Medical City, Riyadh, Saudi Arabia.
| | - Naif A M Almontashiri
- Center for Genetics and Inherited Diseases, Taibah University, Almadinah Almunwarah, Saudi Arabia. .,Faculty of Applied Medical Sciences, Taibah University, Almadinah Almunwarah, Saudi Arabia.
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29
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Verkade HJ, Thompson RJ, Arnell H, Fischler B, Gillberg PG, Mattsson JP, Torfgård K, Lindström E. Systematic Review and Meta-analysis: Partial External Biliary Diversion in Progressive Familial Intrahepatic Cholestasis. J Pediatr Gastroenterol Nutr 2020; 71:176-183. [PMID: 32433433 DOI: 10.1097/mpg.0000000000002789] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
OBJECTIVES We assessed available data on impact of partial external biliary diversion (PEBD) surgery on clinical outcomes in patients with progressive familial intrahepatic cholestasis (PFIC). METHODS We performed a systematic literature review (PubMed) and meta-analysis to evaluate relationships between liver biochemistry parameters (serum bile acids, bilirubin, and alanine aminotransferase [ALT]) and early response (pruritus improvement) or long-term outcomes (need for liver transplant) in patients with PFIC who underwent PEBD. RESULTS Searches identified 175 publications before September 2018; 16 met inclusion criteria. Receiver operating characteristic (ROC) analysis examined ability of liver biochemistry parameters to discriminate patients who demonstrated early and long-term response to PEBD from those who did not. Regarding pruritus improvement in 155 included patients in aggregate, 104 (67%) were responders, 14 (9%) had partial response, and 37 (24%) were nonresponders. In ROC analyses of individual patient data, post-PEBD serum concentration of bile acids, in particular, could discriminate responders from nonresponders for pruritus improvement (area under the curve, 0.99; P < 0.0001; n = 42); to a lesser extent, this was also true for bilirubin (0.87; P = 0.003; n = 31), whereas ALT could not discriminate responders from nonresponders for pruritus improvement (0.74; P = 0.06; n = 28). Reductions from pre-PEBD values in serum bile acid concentration (0.89; P = 0.0003; n = 32) and bilirubin (0.98; P = 0.002; n = 18) but not ALT (0.62; P = 0.46; n = 18) significantly discriminated decreased aggregate need for liver transplant. CONCLUSION Changes in bile acids seem particularly useful in discriminating early and long-term post-PEBD outcomes and may be potential biomarkers of response to interruption of enterohepatic circulation in patients with PFIC.
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Affiliation(s)
- Henkjan J Verkade
- Department of Pediatrics, University of Groningen, Beatrix Children's Hospital/University Medical Center Groningen, Groningen, The Netherlands
| | - Richard J Thompson
- Institute of Liver Studies, King's College London, London, United Kingdom
| | - Henrik Arnell
- Pediatric Gastroenterology, Hepatology and Nutrition, Karolinska University Hospital, CLINTEC, Karolinska Institutet, Stockholm
| | - Björn Fischler
- Pediatric Gastroenterology, Hepatology and Nutrition, Karolinska University Hospital, CLINTEC, Karolinska Institutet, Stockholm
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30
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Gouveia C, Flor de Lima M, Pereira F, Rosa B, Cotter J, Banhudo A, Duarte M, Ferreira A, Cravo M, Nunes J. Should patients with symptomatic cholelithiasis before 30 years of age be tested for ABCB4 gene mutations? Scand J Gastroenterol 2020; 55:958-962. [PMID: 32650689 DOI: 10.1080/00365521.2020.1790648] [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 Low phospholipid-associated cholelithiasis syndrome (LPAC) is characterized by recurrent symptomatic cholelithiasis in young adults associated with ABCB4 gene mutations. Current diagnosing criteria are complex and heterogeneous, making this a largely underdiagnosed entity. Also, although recommended, genetic testing is not necessary for the diagnosis and its real advantages are not clear. The aim of our study was to explore the prevalence of ABCB4 mutations in symptomatic patients with cholelithiasis before the age of 30. METHODS We conducted a multicentric prospective cohort study including patients with symptomatic cholelithiasis presenting before 30 years of age in 4 Portuguese centres between January 2017 and December 2019. ABCB4 gene was analyzed by next generation sequencing (NGS) including all exons and flanking regions. In 17/32 patients ABCB11 and ATP8B1 variants were also analyzed by NGS. RESULTS Thirty-two patients were included (75% females, median age of symptom onset was 23 ± 5 years). We found that 8/32 (25%) patients had mutations in ABCB4 gene, 3/17 (18%) in ATP8B1 gene and 1/17 (6%) in ABCB11 gene. 44% (8/18) of patients with LPAC syndrome criteria had identified variants, while the prevalence of mutations in patients with symptoms onset before 30 as sole criteria was 29%. CONCLUSION Our results suggest that LPAC should be systematically suspected and investigated in patients with symptomatic cholelithiasis before age of thirty, but genetic testing should only be attempted in patients complying with the more stringent LPAC criteria.
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Affiliation(s)
| | | | - Flávio Pereira
- Gastroenterology Department, Hospital Amato Lusitano, Castelo Branco
| | - Bruno Rosa
- Gastroenterology Department, Hospital da Senhora da Oliveira, Guimarães.,Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Guimarães.,ICVS/3B's, PT Government Associate Laboratory, Braga, Guimarães
| | - José Cotter
- Gastroenterology Department, Hospital da Senhora da Oliveira, Guimarães.,Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Guimarães.,ICVS/3B's, PT Government Associate Laboratory, Braga, Guimarães
| | - António Banhudo
- Gastroenterology Department, Hospital Amato Lusitano, Castelo Branco
| | - Maria Duarte
- Gastroenterology Department, Hospital do Divino Espírito Santo, Ponta Delgada
| | | | - Marília Cravo
- Gastroenterology Department, Hospital Beatriz Ângelo, Loures
| | - Joana Nunes
- Gastroenterology Department, Hospital Beatriz Ângelo, Loures
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31
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Van Vaisberg V, Tannuri ACA, Lima FR, Tannuri U. Ileal exclusion for pruritus treatment in children with progressive familial intrahepatic cholestasis and other cholestatic diseases. J Pediatr Surg 2020; 55:1385-1391. [PMID: 31708211 DOI: 10.1016/j.jpedsurg.2019.09.018] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/15/2019] [Revised: 09/02/2019] [Accepted: 09/07/2019] [Indexed: 12/11/2022]
Abstract
BACKGROUND Pruritus is a major health-related quality-of-life burden in progressive familial intrahepatic cholestasis (PFIC) and other childhood cholestatic liver diseases. Several nontransplant surgical techniques were developed in an attempt to ameliorate symptoms and slow disease progression. Very few case-series have been published on a particular intervention, ileal exclusion (IE), which has been considered to be inferior to the other approaches. METHODS We conducted a single-center retrospective chart-review case-series of patients submitted to IE as the first-line surgical treatment at our institution from 1995 to 2018. The primary goal was pruritus relief, followed by survival with the native liver and improvement in biochemical parameters. RESULTS Eleven patients were submitted to IE, with a mean follow-up of 60 months. Complete resolution or significant reduction of pruritus was obtained in 72.7% (n = 8) of patients. One patient (9.1%) had a major postoperative complication that required surgery. No other morbidities were reported. Two cases progressed to end-stage liver disease (ESLD) within the short-term and one year after surgery. CONCLUSIONS This case series study shows that IE provided excellent results in pruritus control and permitted survival with the native liver. We believe IE is a safe procedure, with few associated morbidities, and should be considered more often as primary surgical treatment for PFIC and other cholestasis. LEVEL OF EVIDENCE IV.
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Affiliation(s)
- Victor Van Vaisberg
- Pediatric Surgery Division, Pediatric Liver Transplantation Unit and Laboratory of Research in Pediatric Surgery (LIM 30), University of Sao Paulo Medical School, Sao Paulo, Brazil
| | - Ana Cristina Aoun Tannuri
- Pediatric Surgery Division, Pediatric Liver Transplantation Unit and Laboratory of Research in Pediatric Surgery (LIM 30), University of Sao Paulo Medical School, Sao Paulo, Brazil
| | - Fabiana Roberto Lima
- Pediatric Surgery Division, Pediatric Liver Transplantation Unit and Laboratory of Research in Pediatric Surgery (LIM 30), University of Sao Paulo Medical School, Sao Paulo, Brazil
| | - Uenis Tannuri
- Pediatric Surgery Division, Pediatric Liver Transplantation Unit and Laboratory of Research in Pediatric Surgery (LIM 30), University of Sao Paulo Medical School, Sao Paulo, Brazil.
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32
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Slavetinsky C, Sturm E. Odevixibat and partial external biliary diversion showed equal improvement of cholestasis in a patient with progressive familial intrahepatic cholestasis. BMJ Case Rep 2020; 13:13/6/e234185. [PMID: 32601135 PMCID: PMC7326258 DOI: 10.1136/bcr-2019-234185] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Untreated progressive familial intrahepatic cholestasis (PFIC) type 2, or bile salt exporter protein deficiency, frequently leads to severe pruritus, impaired growth and progressive liver fibrosis with risk of organ failure. We describe a 15-month-old male patient with severe pruritus diagnosed with PFIC type 2 enrolled in an open-label phase 2 study who received 4 weeks of treatment with odevixibat, an ileal bile acid transporter inhibitor under development for cholestatic liver disease treatment. The patient experienced reductions in serum bile acids and improvement in itching and sleep scores, and odevixibat was well tolerated. After the odevixibat study, symptoms returned and the patient underwent partial external biliary diversion (PEBD). Odevixibat treatment and PEBD produced similar normalisation of serum bile acid levels and improvements in pruritus and sleep disruptions. Thus, odevixibat appeared to be as effective as invasive PEBD in treating serum bile acids and cholestatic pruritus in this patient.
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Affiliation(s)
- Christoph Slavetinsky
- Paediatric Gastroenterology and Hepatology, University Children's Hospital, Eberhard Karls University Tubingen, Tubingen, Germany
| | - Ekkehard Sturm
- Paediatric Gastroenterology and Hepatology, University Children's Hospital, Eberhard Karls University Tubingen, Tubingen, Germany
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33
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Kriegermeier A, Green R. Pediatric Cholestatic Liver Disease: Review of Bile Acid Metabolism and Discussion of Current and Emerging Therapies. Front Med (Lausanne) 2020; 7:149. [PMID: 32432119 PMCID: PMC7214672 DOI: 10.3389/fmed.2020.00149] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Accepted: 04/06/2020] [Indexed: 02/06/2023] Open
Abstract
Cholestatic liver diseases are a significant cause of morbidity and mortality and the leading indication for pediatric liver transplant. These include diseases such as biliary atresia, Alagille syndrome, progressive intrahepatic cholestasis entities, ductal plate abnormalities including Caroli syndrome and congenital hepatic fibrosis, primary sclerosing cholangitis, bile acid synthesis defects, and certain metabolic disease. Medical management of these patients typically includes supportive care for complications of chronic cholestasis including malnutrition, pruritus, and portal hypertension. However, there are limited effective interventions to prevent progressive liver damage in these diseases, leaving clinicians to ultimately rely on liver transplantation in many cases. Agents such as ursodeoxycholic acid, bile acid sequestrants, and rifampicin have been mainstays of treatment for years with the understanding that they may decrease or alter the composition of the bile acid pool, though clinical response to these medications is frequently insufficient and their effects on disease progression remain limited. Recently, animal and human studies have identified potential new therapeutic targets which may disrupt the enterohepatic circulation of bile acids, alter the expression of bile acid transporters or decrease the production of bile acids. In this article, we will review bile formation, bile acid signaling, and the relevance for current and newer therapies for pediatric cholestasis. We will also highlight further areas of potential targets for medical intervention for pediatric cholestatic liver diseases.
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Affiliation(s)
- Alyssa Kriegermeier
- Division of Gastroenterology, Hepatology and Nutrition, Department of Pediatrics, Feinberg School of Medicine, Ann & Robert H. Lurie Children's Hospital of Chicago, Northwestern University, Chicago, IL, United States
| | - Richard Green
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL, United States
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34
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Benign Recurrent Intrahepatic Cholestasis (BRIC): An African Case Report. Case Rep Gastrointest Med 2020; 2020:2894293. [PMID: 32231815 PMCID: PMC7085836 DOI: 10.1155/2020/2894293] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/15/2019] [Accepted: 02/10/2020] [Indexed: 02/06/2023] Open
Abstract
Benign recurrent intrahepatic cholestasis (BRIC) is a rare disorder characterised by recurrent episodes of cholestatic jaundice. First described in 1959, BRIC has been reported in patients all over the world including of African descent. Here, we describe a case of a 21-year-old male with recurring episodes of cholestatic jaundice where we diagnosed BRIC and terminated an episode with rifampicin. To our knowledge, this is the first case report of BRIC diagnosed in Africa.
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35
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Cairo MS, Cooke KR, Lazarus HM, Chao N. Modified diagnostic criteria, grading classification and newly elucidated pathophysiology of hepatic SOS/VOD after haematopoietic cell transplantation. Br J Haematol 2020; 190:822-836. [PMID: 32133623 DOI: 10.1111/bjh.16557] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Sinusoidal obstruction syndrome (SOS), previously known as hepatic veno-occlusive disease (VOD), remains a multi-organ system complication following haematopoietic cell transplantation (HCT). When SOS/VOD is accompanied by multi-organ dysfunction, overall mortality rates remain >80%. However, the definitions related to the diagnosis and grading of SOS/VOD after HCT are almost 25 years old and require new and contemporary modifications. Importantly, the pathophysiology of SOS/VOD, including the contribution of dysregulated inflammatory and coagulation cascades as well as the critical importance of liver and vascular derived endothelial dysfunction, have been elucidated. Here we summarise new information on pathogenesis of SOS/VOD; identify modifiable and unmodifiable risk factors for disease development; propose novel, contemporary and panel opinion-based diagnostic criteria and an innovative organ-based method of SOS/VOD grading classification; and review current approaches for prophylaxis and treatment of SOS/VOD. This review will hopefully illuminate pathways responsible for drug-induced liver injury and manifestations of disease, sharpen awareness of risk for disease development and enhance the timely and correct diagnosis of SOS/VOD post-HCT.
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Affiliation(s)
- Mitchell S Cairo
- Departments of, Department of, Pediatrics, New York Medical College, Valhalla, NY, USA.,Department of, Medicine, New York Medical College, Valhalla, NY, USA.,Department of, Pathology, New York Medical College, Valhalla, NY, USA.,Department of, Microbiology and Immunology, New York Medical College, Valhalla, NY, USA.,Department of, Cell Biology & Anatomy, New York Medical College, Valhalla, NY, USA
| | - Kenneth R Cooke
- Department of Oncology, the Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins, Baltimore, MD, USA
| | - Hillard M Lazarus
- Department of Medicine, Case Comprehensive Cancer Center, Case Western Reserve University, Cleveland, OH, USA
| | - Nelson Chao
- Departments of, Department of, Medicine, Duke University, Durham, NC, USA.,Department of, Immunology, Duke University, Durham, NC, USA.,Department of, Pathology, Duke University, Durham, NC, USA
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36
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Wang HH, Liu M, Portincasa P, Wang DQH. Recent Advances in the Critical Role of the Sterol Efflux Transporters ABCG5/G8 in Health and Disease. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2020; 1276:105-136. [PMID: 32705597 PMCID: PMC8118135 DOI: 10.1007/978-981-15-6082-8_8] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Cardiovascular disease is characterized by lipid accumulation, inflammatory response, cell death, and fibrosis in the arterial wall and is the leading cause of morbidity and mortality worldwide. Cholesterol gallstone disease is caused by complex genetic and environmental factors and is one of the most prevalent and costly digestive diseases in the USA and Europe. Although sitosterolemia is a rare inherited lipid storage disease, its genetic studies led to identification of the sterol efflux transporters ABCG5/G8 that are located on chromosome 2p21 in humans and chromosome 17 in mice. Human and animal studies have clearly demonstrated that ABCG5/G8 play a critical role in regulating hepatic secretion and intestinal absorption of cholesterol and plant sterols. Sitosterolemia is caused by a mutation in either the ABCG5 or the ABCG8 gene alone, but not in both simultaneously. Polymorphisms in the ABCG5/G8 genes are associated with abnormal plasma cholesterol metabolism and may play a key role in the genetic determination of plasma cholesterol concentrations. Moreover, ABCG5/G8 is a new gallstone gene, LITH9. Gallstone-associated variants in ABCG5/G8 are involved in the pathogenesis of cholesterol gallstones in European, Asian, and South American populations. In this chapter, we summarize the latest advances in the critical role of the sterol efflux transporters ABCG5/G8 in regulating hepatic secretion of biliary cholesterol, intestinal absorption of cholesterol and plant sterols, the classical reverse cholesterol transport, and the newly established transintestinal cholesterol excretion, as well as in the pathogenesis and pathophysiology of ABCG5/G8-related metabolic diseases such as sitosterolemia, cardiovascular disease, and cholesterol gallstone disease.
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Affiliation(s)
- Helen H Wang
- Department of Medicine and Genetics, Division of Gastroenterology and Liver Diseases, Marion Bessin Liver Research Center, Einstein-Mount Sinai Diabetes Research Center, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Min Liu
- Department of Pathology and Laboratory Medicine, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Piero Portincasa
- Department of Biomedical Sciences and Human Oncology, Clinica Medica "A. Murri", University of Bari Medical School, Bari, Italy
| | - David Q-H Wang
- Department of Medicine and Genetics, Division of Gastroenterology and Liver Diseases, Marion Bessin Liver Research Center, Einstein-Mount Sinai Diabetes Research Center, Albert Einstein College of Medicine, Bronx, NY, USA.
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Expression Analysis of ATP-Binding Cassette Transporters ABCB11 and ABCB4 in Primary Sclerosing Cholangitis and Variety of Pediatric and Adult Cholestatic and Noncholestatic Liver Diseases. Can J Gastroenterol Hepatol 2019; 2019:1085717. [PMID: 31886153 PMCID: PMC6925824 DOI: 10.1155/2019/1085717] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/15/2019] [Revised: 10/11/2019] [Accepted: 11/06/2019] [Indexed: 12/16/2022] Open
Abstract
ATP-binding cassette (ABC) transporters are the members of the efflux pumps that are responsible for the removal of cytotoxic substances by active transport. ABCB11, the bile salt efflux pump of hepatocytes, coordinates cellular excretion of numerous conjugated bile salts into the bile canaliculi, whereas ABCB4 acts as an ATP-dependent floppase translocating phosphatidylcholine from the inner to the outer leaflet of the bile canalicular membrane. Loss of functional ABCB11 and ABCB4 proteins causes early-onset refractory cholestasis or cholangiopathy. In this study, we investigated the expression and localization pattern of ABCB11 and ABCB4 using immunohistochemistry and RNA profiling in liver samples from patients with different types and stages of chronic cholestatic liver disease, with emphasis on primary sclerosing cholangitis (PSC), compared to a variety of cholestatic and noncholestatic hepatopathies. Therefore, ABCB11 and ABCB4 expressions were investigated on formalin-fixed and paraffin-embedded (FFPE) material in a patient cohort of total 43 patients with or without cholestatic liver diseases, on protein level using immunohistochemistry and on RNA level using nanoString technology. Intriguingly, our results demonstrated increased expression of ABCB11 and ABCB4 on protein as well as RNA level in PSC, and the expression pattern correlated with disease progression. We concluded from our study that patients with PSC demonstrate altered expression levels and pattern of ABCB11 and ABCB4 which correlated with disease progression; thereby, ABCB11 and ABCB4 analysis may be a useful tool for assessment of disease stages in PSC.
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Effect of food on the pharmacokinetics and therapeutic efficacy of 4-phenylbutyrate in progressive familial intrahepatic cholestasis. Sci Rep 2019; 9:17075. [PMID: 31745229 PMCID: PMC6863819 DOI: 10.1038/s41598-019-53628-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Accepted: 11/04/2019] [Indexed: 12/11/2022] Open
Abstract
Progressive familial intrahepatic cholestasis (PFIC), a rare inherited disorder, progresses to liver failure in childhood. We have shown that sodium 4-phenylbutyrate (NaPB), a drug approved for urea cycle disorders (UCDs), has beneficial effects in PFIC. However, there is little evidence to determine an optimal regimen for NaPB therapy. Herein, a multicenter, open-label, single-dose study was performed to investigate the influence of meal timing on the pharmacokinetics of NaPB. NaPB (150 mg/kg) was administered orally 30 min before, just before, and just after breakfast following overnight fasting. Seven pediatric PFIC patients were enrolled and six completed the study. Compared with postprandial administration, an approved regimen for UCDs, preprandial administration significantly increased the peak plasma concentration and area under the plasma concentration-time curve of 4-phenylbutyrate by 2.5-fold (95% confidential interval (CI), 2.0-3.0;P = 0.003) and 2.4-fold (95% CI, 1.7-3.2;P = 0.005). The observational study over 3 years in two PFIC patients showed that preprandial, but not prandial or postprandial, oral treatment with 500 mg/kg/day NaPB improved liver function tests and clinical symptoms and suppressed the fibrosis progression. No adverse events were observed. Preprandial oral administration of NaPB was needed to maximize its potency in PFIC patients.
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Niu C, Wang Y, Zhao X, Tep S, Murakami E, Subramanian R, Smith B, Lai Y. Organic Anion-Transporting Polypeptide Genes Are Not Induced by the Pregnane X Receptor Activator Rifampin: Studies in Hepatocytes In Vitro and in Monkeys In Vivo. Drug Metab Dispos 2019; 47:1433-1442. [PMID: 31582395 DOI: 10.1124/dmd.119.088922] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Accepted: 09/27/2019] [Indexed: 12/27/2022] Open
Abstract
Induction potentials of the pregnane X receptor (PXR) activator rifampin (RIF) on transporter genes [e.g., organic anion-transporting polypeptides (OATPs)] are still in its infancy or remain controversial in the field. The present investigations characterized changes in transporter gene expression by RIF in sandwich-cultured hepatocytes from multiple donors of human and cynomolgus monkey using real-time quantitative reverse transcription polymerase chain reaction method. Three-day treatment of RIF significantly induced CYP3A4 (∼60-fold induction), but not CYP1A2 and CYP2D6 genes. SLC51B was the most highly induced uptake transporter gene (>10-fold) in both human and monkey hepatocytes. A greater induction of CYP2C9 was observed in monkey hepatocytes than that in humans. ATP-binding cassette (ABC)B1 and ABCC2 were induced slightly above 2-fold in human and monkey hepatocytes and appeared to be dose-dependent. The induction of OATP and other transporter genes was generally less than 2-fold and considered not clinically relevant. SLCO2B1 was not detectable in monkey hepatocytes. To investigate in vivo OATP induction, RIF (18 mg/kg per day) was orally dosed to cynomolgus monkeys for 7 days. Pitavastatin and antipyrine were intravenously dosed before and after RIF treatment as exogenous probes of OATP and CYP activities, respectively. Plasma coproporphyrin-I (CP-I) and coproporphyrin-III (CP-III) were measured as OATP endogenous biomarkers. Although a significant increase of antipyrine clearance (CL) was observed after RIF treatment, the plasma exposures of pitavastatin, CP-I, and CP-III remained unchanged, suggesting that OATP function was not significantly altered. The results suggested that OATP transporters were not significantly induced by PXR ligand RIF. The data are consistent with current regulatory guidances that the in vitro characterization of transporter induction during drug development is not required. SIGNIFICANCE STATEMENT: Organic anion-transporting polypeptide (OATP) genes were not induced by rifampin in sandwich-cultured human and monkey hepatocytes OATP functions measured by OATP probe pitavastatin and endogenous marker coproporphyrins were not altered in monkeys in vivo by 7-day rifampin treatment. The data suggested that OATP transporters are unlikely induced by the pregnane X receptor ligand rifampin, which are consistent with current regulatory guidances that the in vitro characterization of OATP1B induction during drug development is not required.
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Affiliation(s)
- Congrong Niu
- Drug Metabolism, Gilead Sciences, Foster City, California
| | - Yujin Wang
- Drug Metabolism, Gilead Sciences, Foster City, California
| | - Xiaofeng Zhao
- Drug Metabolism, Gilead Sciences, Foster City, California
| | - Sam Tep
- Drug Metabolism, Gilead Sciences, Foster City, California
| | | | | | - Bill Smith
- Drug Metabolism, Gilead Sciences, Foster City, California
| | - Yurong Lai
- Drug Metabolism, Gilead Sciences, Foster City, California
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Kang HJ, Hong SA, Oh SH, Kim KM, Yoo HW, Kim GH, Yu E. Progressive Familial Intrahepatic Cholestasis in Korea: A Clinicopathological Study of Five Patients. J Pathol Transl Med 2019; 53:253-260. [PMID: 31091858 PMCID: PMC6639708 DOI: 10.4132/jptm.2019.05.03] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Revised: 04/24/2019] [Accepted: 05/03/2019] [Indexed: 12/03/2022] Open
Abstract
BACKGROUND Progressive familial intrahepatic cholestasis (PFIC) is a heterogeneous group of autosomal recessive liver diseases that present as neonatal cholestasis. Little is known of this disease in Korea. METHODS The records of five patients histologically diagnosed with PFIC, one with PFIC1 and four with PFIC2, by liver biopsy or transplant were reviewed, and ATP8B1 and ABCB11 mutation status was analyzed by direct DNA sequencing. Clinicopathological characteristics were correlated with genetic mutations. RESULTS The first symptom in all patients was jaundice. Histologically, lobular cholestasis with bile plugs was the main finding in all patients, whereas diffuse or periportal cholestasis was identified only in patients with PFIC2. Giant cells and ballooning of hepatocytes were observed in three and three patients with PFIC2, respectively, but not in the patient with PFIC1. Immunostaining showed total loss of bile salt export pump in two patients with PFIC2 and focal loss in two. Lobular and portal based fibrosis were more advanced in PFIC2 than in PFIC1. ATP8B1 and ABCB11 mutations were identified in one PFIC1 and two PFIC2 patients, respectively. One PFIC1 and three PFIC2 patients underwent liver transplantation (LT). At age 7 months, one PFIC2 patient was diagnosed with concurrent hepatocellular carcinoma and infantile hemangioma in an explanted liver. The patient with PFIC1 developed steatohepatitis after LT. One patient showed recurrence of PFIC2 after 10 years and underwent LT. CONCLUSIONS PFIC is not rare in patients with neonatal cholestasis of unknown origin. Proper clinicopathologic correlation and genetic testing can enable early detection and management.
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Affiliation(s)
- Hyo Jeong Kang
- 1Department of Pathology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Soon Auck Hong
- 2Department of Pathology, Soonchunhyang University Cheonan Hospital, Cheonan, Korea
| | - Seak Hee Oh
- Department of Pediatrics, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Kyung Mo Kim
- Department of Pediatrics, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Han-Wook Yoo
- Department of Pediatrics, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Gu-Hwan Kim
- Medical Genetics Center, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Eunsil Yu
- 1Department of Pathology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
- Asan Liver Center, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
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Familial intrahepatic cholestasis: New and wide perspectives. Dig Liver Dis 2019; 51:922-933. [PMID: 31105019 DOI: 10.1016/j.dld.2019.04.013] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Revised: 04/01/2019] [Accepted: 04/12/2019] [Indexed: 12/11/2022]
Abstract
BACKGROUND Progressive familial intrahepatic cholestasis (PFIC) includes autosomal recessive cholestatic rare diseases of childhood. AIMS To update the panel of single genes mutations involved in familial cholestasis. METHODS PubMed search for "familial intrahepatic cholestasis" alone as well as in combination with other key words was performed considering primarily original studies and meta-analyses. RESULTS PFIC1 involves ATP8B1 gene encoding for aminophospholipid flippase FIC1. PFIC2 includes ABCB11 gene, encoding for protein functioning as bile salt export pump. PFIC3 is due to mutations of ABCB4 gene responsible for the synthesis of class III multidrug resistance P-glycoprotein flippase. PFIC4 and PFIC5 involve tight junction protein-2 gene and NR1H4 gene encoding for farnesoid X receptor. Benign Intrahepatic Cholestasis, Intrahepatic Cholestasis of Pregnancy and Low-phospholipid-associated cholelithiasis involve the same genes and are characterized by intermittent attacks of cholestasis, no progression to cirrhosis, reversible pregnancy-specific cholestasis and cholelithiasis in young people. Blood and liver tissue levels of bile-excreted drugs can be influenced by the presence of mutations in PFIC genes, causing drug-induced cholestasis. Mutations in PFIC genes might increase the risk of liver cancer. CONCLUSION There is a high proportion of unexplained cholestasis potentially caused by specific genetic pathophysiologic pathways. The use of next generation sequencing and whole-exome sequencing could improve the diagnostic process in this setting.
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Ferreira CR, Cassiman D, Blau N. Clinical and biochemical footprints of inherited metabolic diseases. II. Metabolic liver diseases. Mol Genet Metab 2019; 127:117-121. [PMID: 31005404 PMCID: PMC10515611 DOI: 10.1016/j.ymgme.2019.04.002] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2019] [Revised: 03/25/2019] [Accepted: 04/05/2019] [Indexed: 12/14/2022]
Abstract
Inherited metabolic diseases account for about one third of pediatric patients with hepatomegaly, acute liver failure, cirrhosis or cholestasis. Specifically for pediatric acute liver failure, they account for 10-15% of cases, with a mortality of 22-65%. The percentage of acute liver failure caused by an inherited metabolic disease in children <2-3 years of age is even higher, ranging from a third to half of all cases. Metabolic liver disease accounts for 8-13% of all pediatric liver transplantations. Despite this high burden of disease, underdiagnosis remains common. We reviewed and updated the list of known metabolic etiologies associated with various types of metabolic liver involvement, and found 142 relevant inborn errors of metabolism. This represents the second of a series of articles attempting to create and maintain a comprehensive list of clinical and metabolic differential diagnoses according to system involvement.
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Affiliation(s)
- Carlos R Ferreira
- National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, USA.
| | - David Cassiman
- Department of Gastroenterology-Hepatology and Metabolic Center, University of Leuven, Leuven, Belgium.
| | - Nenad Blau
- Dietmar-Hopp Metabolic Center, University Children's Hospital, Heidelberg, Germany; Division of Metabolism, Children's Hospital, Zürich, Switzerland.
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Kim DJ, Chung H, Ji SC, Lee S, Yu KS, Jang IJ, Cho JY. Ursodeoxycholic acid exerts hepatoprotective effects by regulating amino acid, flavonoid, and fatty acid metabolic pathways. Metabolomics 2019; 15:30. [PMID: 30830474 DOI: 10.1007/s11306-019-1494-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/21/2018] [Accepted: 02/20/2019] [Indexed: 01/06/2023]
Abstract
INTRODUCTION Ursodeoxycholic acid (UDCA) is an intestinal bacterial metabolite with hepatoprotective effects. However, molecular mechanisms underlying its effects remain unclear. OBJECTIVES The aim of this study was to investigate the mechanisms underlying the therapeutic effects of UDCA by using global metabolomics analyses in healthy subjects. METHODS Healthy Korean men were administered UDCA at dosage of 400, 800, or 1200 mg daily for 2 weeks. Serum samples were collected and used for liver function tests and to determine miR-122 expression levels. Urinary and plasma global metabolomics analyses were conducted using a liquid chromatography system coupled with quadrupole-time-of-flight mass spectrometry (LC/QTOFMS) and gas chromatography-TOFMS (GC/TOFMS). Unsupervised multivariate analysis (principal component analysis) was performed to identify discriminative markers before and after treatment. RESULTS Alanine transaminase score and serum miR-122 levels decreased significantly after 2 weeks of treatment. Through LC- and GC-based metabolomic profiling, we identified 40 differential metabolites in plasma and urine samples. CONCLUSIONS Regulation of liver function scores and metabolic alternations highlight the potential hepatoprotective action of UDCA, which were primarily associated with amino acid, flavonoid, and fatty acid metabolism in healthy men.
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Affiliation(s)
- Da Jung Kim
- Department of Clinical Pharmacology and Therapeutics, Seoul National University College of Medicine and Hospital, 101 Daehak-ro, Jongno-gu, Seoul, 03080, South Korea
| | - Hyewon Chung
- Department of Clinical Pharmacology and Therapeutics, Seoul National University College of Medicine and Hospital, 101 Daehak-ro, Jongno-gu, Seoul, 03080, South Korea
- Department of Clinical Pharmacology and Toxicology, Korea University Guro Hospital, Seoul, South Korea
| | - Sang Chun Ji
- Department of Clinical Pharmacology and Therapeutics, Seoul National University College of Medicine and Hospital, 101 Daehak-ro, Jongno-gu, Seoul, 03080, South Korea
| | - SeungHwan Lee
- Department of Clinical Pharmacology and Therapeutics, Seoul National University College of Medicine and Hospital, 101 Daehak-ro, Jongno-gu, Seoul, 03080, South Korea
| | - Kyung-Sang Yu
- Department of Clinical Pharmacology and Therapeutics, Seoul National University College of Medicine and Hospital, 101 Daehak-ro, Jongno-gu, Seoul, 03080, South Korea
| | - In-Jin Jang
- Department of Clinical Pharmacology and Therapeutics, Seoul National University College of Medicine and Hospital, 101 Daehak-ro, Jongno-gu, Seoul, 03080, South Korea
| | - Joo-Youn Cho
- Department of Clinical Pharmacology and Therapeutics, Seoul National University College of Medicine and Hospital, 101 Daehak-ro, Jongno-gu, Seoul, 03080, South Korea.
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Yeap SP, Harley H, Thompson R, Williamson KD, Bate J, Sethna F, Farrell G, Hague WB. Biliary transporter gene mutations in severe intrahepatic cholestasis of pregnancy: Diagnostic and management implications. J Gastroenterol Hepatol 2019; 34:425-435. [PMID: 29992621 DOI: 10.1111/jgh.14376] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/12/2018] [Revised: 06/19/2018] [Accepted: 06/20/2018] [Indexed: 12/12/2022]
Abstract
BACKGROUND AND AIMS Clinical syndromes associated with biallelic mutations of bile acid (BA) transporters usually present in childhood. Subtle mutations may underlie intrahepatic cholestasis of pregnancy (ICP) and oral contraceptive steroid (OCS) induced cholestasis. In five women with identified genetic mutations of such transporters, with eight observed pregnancies complicated by ICP, we examined relationships between transporter mutations, clinical phenotypes, and treatment outcomes. METHODS Gene mutation analysis for BA transporter deficiencies was performed using Next Generation/Sanger sequencing, with analysis for gene deletions/duplications. RESULTS Intrahepatic cholestasis of pregnancy was early-onset (9-32 weeks gestation) and severe (peak BA 74-370 μmol/L), with premature delivery (28+1 -370 weeks gestation) in 7/8 pregnancies, in utero passage of meconium in 4/8, but overall good perinatal outcomes, with no stillbirths. There was generally no response to ursodeoxycholic acid and variable responses to rifampicin and chelation therapies; naso-biliary drainage appeared effective in 2/2 episodes persisting post-partum in each of the two sisters. Episodic jaundice occurring spontaneously or provoked by non-specific infections, and OCS-induced cholestasis, had previously occurred in 3/5 women. Two cases showed biallelic heterozygosity for several ABCB11 mutations, one was homozygous for an ABCB4 mutation and a fourth case was heterozygous for another ABCB4 mutation. CONCLUSIONS Early-onset or recurrent ICP, especially with previous spontaneous or OCS-induced episodes of cholestasis and/or familial cholestasis, may be attributable to transporter mutations, including biallelic mutations of one or more transporters. Response to standard therapies for ICP is often incomplete; BA sequestering therapy or naso-biliary drainage may be effective. Optimized management can produce good outcomes despite premature birth and evidence of fetal compromise.
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Affiliation(s)
- Sze Pheh Yeap
- Liver Unit, Royal Adelaide Hospital, Adelaide, South Australia, Australia
| | - Hugh Harley
- Liver Unit, Royal Adelaide Hospital, Adelaide, South Australia, Australia.,Department of Medicine, University of Adelaide, Adelaide, South Australia, Australia
| | | | | | - John Bate
- Liver Unit, Royal Adelaide Hospital, Adelaide, South Australia, Australia
| | - Farah Sethna
- Department of Obstetrics and Gynaecology, Canberra Hospital, Canberra, Australian Capital Territory, Australia
| | - Geoffrey Farrell
- Liver Research Unit, Canberra Hospital, Canberra, Australian Capital Territory, Australia.,The Australian National University Medical School, Canberra, Australian Capital Territory, Australia
| | - William Bill Hague
- Obstetric Medicine, Women's and Children's Hospital, North Adelaide, South Australia, Australia.,Robinson Research Institute, University of Adelaide, North Adelaide, South Australia, Australia
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45
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Wan S, Kuipers F, Havinga R, Ando H, Vance DE, Jacobs RL, van der Veen JN. Impaired Hepatic Phosphatidylcholine Synthesis Leads to Cholestasis in Mice Challenged With a High-Fat Diet. Hepatol Commun 2019; 3:262-276. [PMID: 30766963 PMCID: PMC6357837 DOI: 10.1002/hep4.1302] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Accepted: 11/28/2018] [Indexed: 01/05/2023] Open
Abstract
Phosphatidylethanolamine N-methyltransferase (PEMT) is a hepatic integral membrane protein localized to the endoplasmic reticulum (ER). PEMT catalyzes approximately 30% of hepatic phosphatidylcholine (PC) biosynthesis. Pemt-/- mice fed a high-fat diet (HFD) develop steatohepatitis. Interestingly, portions of the ER located close to the canaliculus are enriched in PEMT. Phospholipid balance and asymmetrical distribution by adenosine triphosphatase phospholipid transporting 8B1 (ATP8B1) on the canalicular membrane is required for membrane integrity and biliary processes. We hypothesized that PEMT is an important supplier of PC to the canaliculus and that PEMT activity is critical for the maintenance of canalicular membrane integrity and bile formation following HFD feeding when there is an increase in overall hepatic PC demand. Pemt+/+ and Pemt-/- mice were fed a chow diet, an HFD, or a choline-supplemented HFD. Plasma and hepatic indices of liver function and parameters of bile formation were determined. Pemt-/- mice developed cholestasis, i.e, elevated plasma bile acid (BA) concentrations and decreased biliary secretion rates of BAs and PC, during HFD feeding. The maximal BA secretory rate was reduced more than 70% in HFD-fed Pemt-/- mice. Hepatic ABCB11/bile salt export protein, responsible for BA secretion, was decreased in Pemt-/- mice and appeared to be retained intracellularly. Canalicular membranes of HFD-fed Pemt-/- mice contained fewer invaginations and displayed a smaller surface area than Pemt+/+ mice. Choline supplementation (CS) prevented and reversed the development of HFD-induced cholestasis. Conclusion: We propose that hepatic PC availability is critical for bile formation. Dietary CS might be a potential noninvasive therapy for a specific subset of patients with cholestasis.
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Affiliation(s)
- Sereana Wan
- Group on the Molecular and Cell Biology of Lipids and Department of Biochemistry University of Alberta Edmonton Canada
| | - Folkert Kuipers
- Department of Pediatrics University of Groningen, University Medical Center Groningen Groningen the Netherlands
| | - Rick Havinga
- Department of Pediatrics University of Groningen, University Medical Center Groningen Groningen the Netherlands
| | - Hiromi Ando
- Group on the Molecular and Cell Biology of Lipids and Department of Biochemistry University of Alberta Edmonton Canada
| | - Dennis E Vance
- Group on the Molecular and Cell Biology of Lipids and Department of Biochemistry University of Alberta Edmonton Canada
| | - René L Jacobs
- Group on the Molecular and Cell Biology of Lipids and Department of Biochemistry University of Alberta Edmonton Canada.,Department of Agricultural, Food and Nutritional Science University of Alberta Edmonton Canada
| | - Jelske N van der Veen
- Group on the Molecular and Cell Biology of Lipids and Department of Biochemistry University of Alberta Edmonton Canada
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Milyukov VE, Sharifova KM. [Multiple organ manifestations of liver failure in acute small bowel obstruction]. Khirurgiia (Mosk) 2019:73-79. [PMID: 31532170 DOI: 10.17116/hirurgia201909173] [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: 06/10/2023]
Abstract
Modern surgical and intensive care achievements did not result decrease of mortality in patients with acute small bowel obstruction (ASBO). Direct cause of mortality in ASBO patients is peritonitis followed by multiple organ failure syndrome including acute failure of liver, kidneys, lungs and other organs. Publications devoted to the problem of acute liver failure and its complicationsare reviewed in the article. Mechanisms of pathogenesis and clinical manifestations of multiple organ failure syndrome in patients with acute small bowel obstruction are analyzed.
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Affiliation(s)
- V E Milyukov
- Sechenov First Moscow State Medical University of the Ministry of Health of the Russia, Moscow, Russia
| | - Kh M Sharifova
- Sechenov First Moscow State Medical University of the Ministry of Health of the Russia, Moscow, Russia
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Abstract
The transport of specific molecules across lipid membranes is an essential function of all living organisms. The processes are usually mediated by specific transporters. One of the largest transporter families is the ATP-binding cassette (ABC) family. More than 40 ABC transporters have been identified in human, which are divided into 7 subfamilies (ABCA to ABCG) based on their gene structure, amino acid sequence, domain organization, and phylogenetic analysis. Of them, at least 11 ABC transporters including P-glycoprotein (P-GP/ABCB1), multidrug resistance-associated proteins (MRPs/ABCCs), and breast cancer resistance protein (BCRP/ABCG2) are involved in multidrug resistance (MDR) development. These ABC transporters are expressed in various tissues such as the liver, intestine, kidney, and brain, playing important roles in absorption, distribution, and excretion of drugs. Some ABC transporters are also involved in diverse cellular processes such as maintenance of osmotic homeostasis, antigen processing, cell division, immunity, cholesterol, and lipid trafficking. Several human diseases such as cystic fibrosis, sitosterolemia, Tangier disease, intrahepatic cholestasis, and retinal degeneration are associated with mutations in corresponding transporters. This chapter will describe function and expression of several ABC transporters (such as P-GP, BCRP, and MRPs), their substrates and inhibitors, as well as their clinical significance.
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Affiliation(s)
- Xiaodong Liu
- China Pharmaceutical University, Nanjing, China.
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48
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Yi NJ, Kim J, Choi Y, Kim H, Lee KB, Jang JJ, Lee JY, Lee JM, Han JK, Lee KW, Suh KS. Alteration of MRP2 expression and the graft outcome after liver transplantation. Ann Surg Treat Res 2018; 95:249-257. [PMID: 30402443 PMCID: PMC6204325 DOI: 10.4174/astr.2018.95.5.249] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2018] [Revised: 04/25/2018] [Accepted: 06/01/2018] [Indexed: 01/18/2023] Open
Abstract
Purpose Multidrug resistance-associated protein (MRP) 2 is a glutathione conjugate in the canalicular membrane of hepatocytes. Early graft damage after liver transplantation (LT) can result in alteration of MRP2 expression. The purpose of this study was to evaluate the relationship between the pattern of MRP2 alteration and graft outcome. Methods Forty-one paraffin-embedded liver graft tissues obtained by protocol biopsy within 2 months after LT; these were stained using monoclonal antibodies of MRP2. We selected 15 live donor biopsy samples as a control, that showed homogenous canalicular staining for MRP2. The pattern of canalicular MRP2 staining of graft was classified into 3 types: homogenous (type C0), focal (type C1), and no (type C2,) staining of the canaliculi. Results In total, 17.1% graft tissues were type C0, 36.6% were type C1, and 46.3% were type C2. The median operation time was longer in patients with type C2 (562.6 minutes) than in patients with type C0 (393.8 minutes) (P = 0.038). The rates of posttransplant complications were higher in patients with type C2 (100%) than in patients with type C0 (42.9%) and C1 (73.3%) (P < 0.001). Conclusion MRP2 expression pattern was altered in 82.9% after LT. The pattern of MRP2 alteration was associated with longer operation time and higher rates of post-LT complications.
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Affiliation(s)
- Nam-Joon Yi
- Department of Surgery, Seoul National University College of Medicine, Seoul, Korea
| | - Joohyun Kim
- Department of Surgery, Seoul National University College of Medicine, Seoul, Korea.,Department of Transplant Surgery, Medical College of Wisconsin, Milwaukee, WI, USA
| | - YoungRok Choi
- Department of Surgery, Seoul National University College of Medicine, Seoul, Korea
| | - Heyoung Kim
- Department of Surgery, Seoul National University College of Medicine, Seoul, Korea
| | - Kyoung Bun Lee
- Department of Pathology, Seoul National University College of Medicine, Seoul, Korea
| | - Ja-June Jang
- Department of Pathology, Seoul National University College of Medicine, Seoul, Korea
| | - Jae Young Lee
- Department of Radiology, Seoul National University College of Medicine, Seoul, Korea
| | - Jeong Min Lee
- Department of Radiology, Seoul National University College of Medicine, Seoul, Korea
| | - Joon Koo Han
- Department of Radiology, Seoul National University College of Medicine, Seoul, Korea
| | - Kwang-Woong Lee
- Department of Surgery, Seoul National University College of Medicine, Seoul, Korea
| | - Kyung-Suk Suh
- Department of Surgery, Seoul National University College of Medicine, Seoul, Korea
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49
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Potential mechanism of cholagogic effect about Gardenia Jasminoides Ellis (Zhizi)-mediated increase of bile acids urinary excretion in normal rats. CHINESE HERBAL MEDICINES 2018. [DOI: 10.1016/j.chmed.2018.08.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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50
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Abstract
Progressive familial intrahepatic cholestasis (PFIC) is a group of autosomal recessive cholestatic liver diseases which are subgrouped according to the genetic defect, clinical presentation, laboratory findings and liver histology. Progressive liver fibrosis, cirrhosis, and end stage liver disease (ESLD) may eventually develop. PFIC was first described in Amish descendants of Jacob Byler, therefore it was originally called Byler disease. But it can be seen anywhere on the globe. This review summarizes the main features of the subtypes of the disease and discusses the current available diagnosis, conservative and surgical therapeutic options.
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Affiliation(s)
- Mithat Gunaydin
- Avicenna Hospital, Department of Pediatric Surgery, Istanbul, Turkey,
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