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Kondou H, Nakano S, Mizuno T, Bessho K, Hasegawa Y, Nakazawa A, Tanikawa K, Azuma Y, Okamoto T, Inui A, Imagawa K, Kasahara M, Zen Y, Suzuki M, Hayashi H. Clinical symptoms, biochemistry, and liver histology during the native liver period of progressive familial intrahepatic cholestasis type 2. Orphanet J Rare Dis 2024; 19:57. [PMID: 38341604 PMCID: PMC10858576 DOI: 10.1186/s13023-024-03080-6] [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: 05/22/2023] [Accepted: 02/05/2024] [Indexed: 02/12/2024] Open
Abstract
BACKGROUND Progressive familial intrahepatic cholestasis type 2 (PFIC2) is an ultra-rare disease caused by mutations in the ABCB11 gene. This study aimed to understand the course of PFIC2 during the native liver period. METHODS From November 2014 to October 2015, a survey to identify PFIC2 patients was conducted in 207 hospitals registered with the Japanese Society of Pediatric Gastroenterology, Hepatology, and Nutrition. Investigators retrospectively collected clinical data at each facility in November 2018 using pre-specified forms. RESULTS Based on the biallelic pathogenic variants in ABCB11 and/or no hepatic immunohistochemical detection of BSEP, 14 Japanese PFIC2 patients were enrolled at seven facilities. The median follow-up was 63.2 [47.7-123.3] months. The median age of disease onset was 2.5 [1-4] months. Twelve patients underwent living donor liver transplantation (LDLT), with a median age at LDLT of 9 [4-57] months. Two other patients received sodium 4-phenylbutyrate (NaPB) therapy and survived over 60 months with the native liver. No patients received biliary diversion. The cases that resulted in LDLT had gradually deteriorated growth retardation, biochemical tests, and liver histology since the initial visit. In the other two patients, jaundice, growth retardation, and most of the biochemical tests improved after NaPB therapy was started, but pruritus and liver fibrosis did not. CONCLUSIONS Japanese PFIC2 patients had gradually worsening clinical findings since the initial visit, resulting in LDLT during infancy. NaPB therapy improved jaundice and growth retardation but was insufficient to treat pruritus and liver fibrosis.
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Affiliation(s)
- Hiroki Kondou
- Department of Pediatrics, Kindai University Nara Hospital, Nara, Japan
| | - Satoshi Nakano
- Department of Pediatrics, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Tadahaya Mizuno
- Laboratory of Molecular Pharmacokinetics, Graduate School of Pharmaceutical Science, The University of Tokyo, Tokyo, Japan
| | - Kazuhiko Bessho
- Department of Pediatrics, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Yasuhiro Hasegawa
- Department of Pediatrics, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Atsuko Nakazawa
- Department of Clinical Research, Saitama Children's Medical Center, Saitama, Japan
| | - Ken Tanikawa
- Department of Diagnostic Pathology, Kurume University Hospital, Fukuoka, Japan
| | - Yoshihiro Azuma
- Department of Pediatrics, Yamaguchi University Graduate School of Medicine, Yamaguchi, Japan
| | - Tatsuya Okamoto
- Department of Pediatric Surgery, Kyoto University Hospital, Kyoto, Japan
| | - Ayano Inui
- Department of Pediatric Hepatology and Gastroenterology, Saiseikai Yokohama City Eastern Hospital, Kanagawa, Japan
| | - Kazuo Imagawa
- Department of Pediatrics, University of Tsukuba Hospital, Ibaraki, Japan
| | - Mureo Kasahara
- Organ Transplantation Center, National Center for Child Health and Development, Tokyo, Japan
| | - Yoh Zen
- Institute of Liver Studies, King's College Hospital and King's College London, London, UK
| | - Mitsuyoshi Suzuki
- Department of Pediatrics, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Hisamitsu Hayashi
- Laboratory of Molecular Pharmacokinetics, Graduate School of Pharmaceutical Science, The University of Tokyo, Tokyo, Japan.
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Ryan MT, Martinez C, Jahns H, Mooney CT, Browne JA, O'Neill EJ, Shiel RE. The comparative performance of a custom Canine NanoString® panel on FFPE and snap frozen liver biopsies. Res Vet Sci 2023; 159:225-231. [PMID: 37172451 DOI: 10.1016/j.rvsc.2023.04.023] [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: 02/10/2023] [Revised: 04/25/2023] [Accepted: 04/26/2023] [Indexed: 05/15/2023]
Abstract
Formalin-Fixed Paraffin Embedded (FFPE) biopsies would provide a critical mass of cases to allow investigation of canine liver disease, however their use is often limited by challenges typically associated with transcriptomic analysis. This study evaluates the capability of NanoString® to measure the expression of a broad panel of genes in FFPE liver samples. RNA was isolated from matched histopathologically normal liver samples using FFPE (n = 6) and snap frozen in liquid nitrogen (n = 6) and measured using a custom NanoString® panel. Out of the 40 targets on the panel, 27 and 23 targets were above threshold for non-diseased snap frozen and FFPE tissue respectively. The binding density and total counts were significantly reduced in the FFPE samples relative to the snap frozen samples (p = 0.005, p = 0.01, respectively), confirming a reduction in sensitivity. The concordance between the snap frozen and FFPE samples was high, with correlations (R) ranging between 0.88 and 0.99 between the paired samples. An additional 14 immune-related targets, undetectable the non-diseased FFPE liver, were above threshold when the technique was applied to a series of diseased samples, further supporting their inclusion on this panel. This use of NanoString® based analysis opens up huge opportunity for retrospective evaluation of gene signatures in larger caseloads through harnessing the capacity of archived FFPE samples This information used alongside clinical and histological data will not only afford a way to explore disease etiopathogenesis, it may also offer insight into sub-types of liver disease in dogs, which cannot be discerned using more traditional diagnostic methods.
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Affiliation(s)
- Marion T Ryan
- School of Veterinary Medicine, University College Dublin, Belfield, Co. Dublin, Ireland.
| | - Carlos Martinez
- Department of Internal Medicine, AÚNA Especialidades Veterinarias - IVC Evidensia, Valencia, Spain
| | - Hanne Jahns
- School of Veterinary Medicine, University College Dublin, Belfield, Co. Dublin, Ireland
| | - Carmel T Mooney
- School of Veterinary Medicine, University College Dublin, Belfield, Co. Dublin, Ireland
| | - John A Browne
- School of Agriculture and Food Science, University College Dublin, Belfield, Co. Dublin, Ireland
| | - Emma J O'Neill
- School of Veterinary Medicine, University College Dublin, Belfield, Co. Dublin, Ireland
| | - Robert E Shiel
- School of Veterinary Medicine, Murdoch University, Perth, Western Australia, Australia
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