scholarly journals A Novel Compound Heterozygous Mutation in ABCB4 Gene Leading to Cholelithiasis, Progressive Familial Intrahepatic Cholestasis (Type 3), and Cirrhosis in a Child

2020 ◽  
Vol 10 (01) ◽  
pp. e134-e136
Author(s):  
Nida Mirza ◽  
Smita Malhotra ◽  
Anupam Sibal
Keyword(s):  
Intrahepatic Cholestasis ◽  
Gall Stone ◽  
Compound Heterozygous Mutation ◽  
Heterozygous Mutation ◽  
Compound Heterozygous ◽  
Initial Symptom ◽  
Progressive Familial Intrahepatic Cholestasis ◽  
Presenting Symptoms ◽  
Abcb4 Gene ◽  
Type 3

AbstractProgressive familial intrahepatic cholestasis (PFIC) is a heterogeneous group of autosomal recessive disorders of childhood which presents with intermittent or progressive episodes of cholestasis, with jaundice and pruritus as most common presenting symptoms. PFIC type 3 occurs due to mutations in the ABCB4 gene, mutation in this gene has wide spectrum of features which include intrahepatic stones, cholelithiasis, PFIC type 3, and intrahepatic cholestasis of pregnancy. Here, we are reporting a peculiar case of young male adolescent with novel variant compound heterozygote missense mutation in ABCB4 gene who had gall stone as initial symptom, followed by symptoms of PFIC and eventually decompensated chronic liver disease.

A novel etiologic factor of highly elevated cholestanol levels: progressive familial intrahepatic cholestasis

2020 ◽  
Vol 33 (5) ◽  
pp. 665-669
Author(s):  
Aynur Küçükçongar Yavaş ◽  
Büşra Çavdarlı ◽  
Özlem Ünal Uzun ◽  
Ayşen Uncuoğlu ◽  
Mehmet Gündüz
Keyword(s):  
Primary Biliary Cirrhosis ◽  
Intrahepatic Cholestasis ◽  
Density Lipoprotein ◽  
Etiologic Factor ◽  
Compound Heterozygous ◽  
Cholestatic Liver Disease ◽  
Biliary Cirrhosis ◽  
Progressive Familial Intrahepatic Cholestasis ◽  
Turkish Patient ◽  
Type 3

AbstractBackgroundProgressive familial intrahepatic cholestasis type 3 (PFIC3) is an uncommon cholestatic liver disease caused by mutations in the ATP binding cassette subfamily B member 4 (ABCB4) gene. Although PFIC3 is frequently identified in childhood, ABCB4 disease-causing alleles have been described in adults affected by intrahepatic cholestasis of pregnancy, hormone-induced cholestasis, low-phospholipid-associated cholelithiasis syndrome or juvenile cholelithiasis, cholangiocarcinoma and in sporadic forms of primary biliary cirrhosis. Cholestanol is a biomarker which is elevated especially in cerebrotendinous xanthomatosis and rarely in primary biliary cirrhosis (PBC) and Niemann Pick type C.Case presentationHere we report a Turkish patient with compound heterozygous mutations in the ABCB4 gene, who has hepatosplenomegaly, low level of high-density lipoprotein, cholestasis and high level of cholestanol.ConclusionThis is the first PFIC3 case with a high cholestanol level described in the literature. There are very few diseases linked to increased cholestanol levels, two of which are CTX and PBC. From this case, we can conclude that a high cholestanol level might be another indicator of PFIC type 3.

ABCB4 Gene Aberrations in Human Liver Disease: An Evolving Spectrum

2018 ◽  
Vol 38 (04) ◽  
pp. 299-307 ◽  
Author(s):  
Matthias Reichert ◽  
Frank Lammert
Keyword(s):  
Intrahepatic Cholestasis ◽  
Association Studies ◽  
Compound Heterozygous ◽  
Genome Wide Association Studies ◽  
Therapeutic Approaches ◽  
Drug Induced ◽  
Drug Induced Liver Injury ◽  
Genome Wide ◽  
Abcb4 Gene ◽  
Type 3

AbstractATP-binding cassette subfamily B member 4 (ABCB4) is a phospholipid translocator at the canalicular membrane of the hepatocyte, which “flops” phosphatidylcholine into bile. Dysfunction of this transporter due to ABCB4 gene variants can cause liver diseases and has been called ABCB4 deficiency. Several diseases including progressive familial intrahepatic cholestasis type 3 (PFIC3), low phospholipid-associated cholelithiasis (LPAC), a subgroup of patients developing intrahepatic cholestasis of pregnancy (ICP), drug-induced liver injury and chronic cholangiopathy with biliary fibrosis and cirrhosis were attributed to ABCB4 deficiency and characterized in the past decade. LPAC and ICP are usually caused by monoallelic variants, whereas patients affected by PFIC3 are homozygous or compound heterozygous carriers of ABCB4 variants. Treatment with ursodeoxycholic acid is often effective, but as the more severe forms of ABCB4 deficiency progress, nevertheless, new diagnostic and therapeutic approaches are warranted. Current functional classifications for ABCB4 deficiency–associated mutations can guide the development of novel genotype–based targeted pharmacotherapies for these conditions. Recently, increasing evidence from genome-wide association studies is emerging on associations of ABCB4 variants with hepatobiliary malignancies.

scholarly journals Case report: progressive familial intrahepatic cholestasis type 3 with compound heterozygous ABCB4 variants diagnosed 15 years after liver transplantation

2020 ◽  
Vol 21 (1) ◽  
Author(s):  
Mariam Goubran ◽  
Ayodeji Aderibigbe ◽  
Emmanuel Jacquemin ◽  
Catherine Guettier ◽  
Safwat Girgis ◽  
...  
Keyword(s):  
Liver Transplantation ◽  
Liver Disease ◽  
Intrahepatic Cholestasis ◽  
Autoimmune Response ◽  
Compound Heterozygous ◽  
Biliary Cirrhosis ◽  
Progressive Familial Intrahepatic Cholestasis ◽  
End Stage Liver Disease ◽  
End Stage ◽  
Type 3

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.

scholarly journals A missense mutation in ABCB4 gene involved in progressive familial intrahepatic cholestasis type 3 leads to a folding defect that can be rescued by low temperature

Hepatology ◽  
2008 ◽  
Vol 49 (4) ◽  
pp. 1218-1227 ◽  
Author(s):  
Jean-Louis Delaunay ◽  
Anne-Marie Durand-Schneider ◽  
Danièle Delautier ◽  
Alegna Rada ◽  
Julien Gautherot ◽  
...  
Keyword(s):  
Low Temperature ◽  
Missense Mutation ◽  
Intrahepatic Cholestasis ◽  
Progressive Familial Intrahepatic Cholestasis ◽  
Folding Defect ◽  
Abcb4 Gene ◽  
Type 3

scholarly journals Neonatal intrahepatic cholestasis caused by citrin deficiency with no hepatic steatosis: a case report

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Ryosuke Miyamoto ◽  
Jun Sada ◽  
Koki Ota ◽  
Kenitiro Kaneko ◽  
Hironori Kusano ◽  
...  
Keyword(s):  
Weight Gain ◽  
Fatty Liver ◽  
Hepatic Steatosis ◽  
Intrahepatic Cholestasis ◽  
Good Condition ◽  
Medium Chain Triglyceride ◽  
Compound Heterozygous Mutation ◽  
Heterozygous Mutation ◽  
Compound Heterozygous ◽  
Citrin Deficiency

Abstract Background Neonatal intrahepatic cholestasis caused by citrin deficiency (NICCD) is a common form of neonatal jaundice. Histopathological examination of the liver in patients with NICCD typically shows fatty liver, steatohepatitis, and liver fibrosis. Jaundice and fatty liver often improve by 1 year of age. We herein describe a girl who was diagnosed with NICCD based on an SLC25A13 mutation, although no fatty deposits were found on pathologic examination of the liver. Case presentation The patient in this case was a 3-month-old girl. At 2 months of age, she presented with jaundice, discolored stools, and poor weight gain and was found to have hyperbilirubinemia. Cholangiography revealed that she did not have biliary atresia. A laparoscopic liver biopsy was performed, and liver histopathology showed no fatty deposits. Genetic analysis revealed a compound heterozygous mutation in SLC25A13, and she was diagnosed with NICCD. She was given medium-chain triglyceride milk and gained weight. She resumed consumption of normal milk and breast milk, and her stool color improved. She was discharged at 4 months of age with adequate weight gain and a lower total bilirubin concentration. She was in good condition after discharge and showed normal development at the time of outpatient follow-up. Conclusions We experienced a case of NICCD in a patient without fatty liver. This case illustrates that the absence of hepatic steatosis in neonatal cholestasis does not rule out NICCD.

Progressive familial intrahepatic cholestasis type 4 in an Indian child: presentation, initial course and novel compound heterozygous mutation

2020 ◽  
Vol 13 (7) ◽  
pp. e234193
Author(s):  
Nida Mirza ◽  
Ravi Bharadwaj ◽  
Smita Malhotra ◽  
Anupam Sibal
Keyword(s):  
Smooth Muscle ◽  
Intrahepatic Cholestasis ◽  
Compound Heterozygous Mutation ◽  
Compound Heterozygous ◽  
Cholestatic Liver Disease ◽  
Gamma Glutamyl Transferase ◽  
Progressive Familial Intrahepatic Cholestasis ◽  
Smooth Muscle Antibody ◽  
Elevated Liver Enzymes ◽  
Glutamyl Transferase

A 15-year-old boy who had a history of on and off pruritus and jaundice since many years found to have a novel mutation in TJP2 gene. On examination, he had clubbing, splenomegaly, grade 3 oesophageal varices and short stature. Investigation revealed direct hyperbirubinemia with elevated liver enzymes with normal gamma-glutamyl transferase (GGT). Antinuclear antibody (ANA), smooth muscle antibody (SMA) anti-liver kidney microsomal (anti-LKM) and viral markers for hepatitis were negative. However, IgG was elevated and anti-smooth muscle antibody (ASMA) was weekly positive (1:20). He was also given a trial of steroid and azathioprine for 1 year on the basis of liver biopsy findings, raised IgG and positive ASMA but finding no improvement stopped. Genetic testing by next-generation sequencing found a novel compound heterozygous missense variation in exon 17 of the TJP2 gene confirming progressive familial intrahepatic cholestasis type 4 as the aetiology of cholestatic liver disease.

scholarly journals Approach and management considerations in low phospholipid associated cholelithiasis (LPAC) syndrome

2018 ◽  
Vol 6 (11) ◽  
pp. 3794
Author(s):  
Indrajit Suresh ◽  
Lokesh E. ◽  
Amrit Nanaiah ◽  
Soumya Ganesh Nanaiah ◽  
Suhas C. ◽  
...  
Keyword(s):  
Bile Acid ◽  
Ursodeoxycholic Acid ◽  
Intrahepatic Cholestasis ◽  
Biliary Obstruction ◽  
Young Patients ◽  
Close Monitoring ◽  
Progressive Familial Intrahepatic Cholestasis ◽  
Intrahepatic Calculi ◽  
Abcb4 Gene ◽  
Type 3

Low phospholipid associated cholelithiasis (LPAC) syndrome, first described in 2001, could be the causality in a significant number of young patients with cholelithiasis, who have a recurrence of symptoms despite cholecystectomy. A mutation of the ABCB4/MDR3 gene, causes a disruption in the translocation of phosphatidylcholine, resulting in bile acid mediated biliary tract injury. The ABCB4 gene is also implicated in other diseases such as progressive familial intrahepatic cholestasis type 3, which is greater in severity and tools like genotyping can aid the physician in prognostication, as well as determining the response to medical therapy. A few symptomatic patients develop features of biliary obstruction due to intrahepatic calculi, and they require interventions-which may be endoscopic or surgical in nature. Although a majority of patients with LPAC syndrome respond well to ursodeoxycholic acid (UDCA) therapy, close monitoring is warranted to keep a check on disease progression.

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