A new ABCB11 mutation in two Italian children with familial intrahepatic cholestasis

Valerio Nobili, Silvia Di Giandomenico, Paola Francalanci, Francesco Callea, Matilde Marcellini, Filippo M. Santorelli

Research output: Contribution to journalArticlepeer-review

Abstract

Progressive familial intrahepatic cholestasis (PFIC) syndromes are characterized by defects in transporters of conjugated bile acids into the bile canaliculus. Three genes (ATP8B1, ABCB11, ABCB4) are associated with the different forms, but no easy genotype-phenotype correlations help in the prioritization for gene testing. We developed a denaturing high-performance liquid chromatography (DHPLC) method to screen patients with PFIC for mutations in ATP8B1 and ABCB11, and combined genetic analyses with immunolabeling in liver for the ABCB11 and ABCB4 gene products. Used in combination with commercially available antibodies on liver specimens, the DHPLC approach allowed us to confirm the clinical diagnosis in two Italian sisters and to identify a novel missesnse mutation in ABCB11. Our findings are expected to facilitate detection of the molecular cause of PFIC in affected families.

Original languageEnglish
Pages (from-to)598-603
Number of pages6
JournalJournal of Gastroenterology
Volume41
Issue number6
DOIs
Publication statusPublished - Jun 2006

Keywords

  • ABCB11 gene
  • DHPLC
  • Mutation detection
  • Progressive intrahepatic cholestasis syndromes

ASJC Scopus subject areas

  • Gastroenterology

Fingerprint Dive into the research topics of 'A new ABCB11 mutation in two Italian children with familial intrahepatic cholestasis'. Together they form a unique fingerprint.

Cite this