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Novel CYP1B1 and known PAX6 mutations in anterior segment dysgenesis (ASD).

AbstractPURPOSE:
The study intended to define the underlying genetic defects for 21 index patients affected with different forms of anterior segment dysgenesis. Sequence analysis for the PAX6, PITX2, FOXC1, and CYP1B1 genes has been implemented for this purpose.
METHODS:
Ten patients affected with Peters anomaly, 8 with Rieger anomaly, and 3 with aniridia were included in this study. All patients underwent a complete eye examination, including anterior segment evaluation, with slit-lamp microsocopy, fundoscopy, tonography, and gonioscopy. Twenty-one intronic primer pairs were used to amplify the coding exons of the FOXC1, CYP1B1, PITX2, and PAX6 genes for sequence analysis on an automated sequencer (ABI 3730).
RESULTS:
We were able to detect mutations in 5 of 21 patients with anterior segment malformations. We found mutations in individuals suffering from Rieger anomaly and aniridia, in CYP1B1 and PAX6, respectively. None of the 10 Peters anomaly patients had causative mutations in any of the 4 genes we screened.
CONCLUSIONS:
Our results suggest primary congenital glaucoma and the anterior segment dysgenesis disorders may share a common molecular pathophysiology in the CYP1B1 pathway.
AuthorsGabriela Chavarria-Soley, Karin Michels-Rautenstrauss, Almuth Caliebe, Monika Kautza, Christian Mardin, Bernd Rautenstrauss
JournalJournal of glaucoma (J Glaucoma) Vol. 15 Issue 6 Pg. 499-504 (Dec 2006) ISSN: 1057-0829 [Print] United States
PMID17106362 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't)
Chemical References
  • Eye Proteins
  • FOXC1 protein, human
  • Forkhead Transcription Factors
  • Homeodomain Proteins
  • PAX6 protein
  • Paired Box Transcription Factors
  • Repressor Proteins
  • Transcription Factors
  • homeobox protein PITX2
  • Cytochrome P-450 Enzyme System
  • Aryl Hydrocarbon Hydroxylases
  • CYP1B1 protein, human
  • Cytochrome P-450 CYP1B1
Topics
  • Amino Acid Sequence
  • Anterior Eye Segment (abnormalities)
  • Aryl Hydrocarbon Hydroxylases
  • Base Sequence
  • Cytochrome P-450 CYP1B1
  • Cytochrome P-450 Enzyme System (genetics)
  • DNA Mutational Analysis
  • Eye Abnormalities (genetics)
  • Eye Proteins (genetics)
  • Forkhead Transcription Factors (genetics)
  • Homeodomain Proteins (genetics)
  • Humans
  • Molecular Sequence Data
  • Mutation
  • Paired Box Transcription Factors (genetics)
  • Polymerase Chain Reaction
  • Repressor Proteins (genetics)
  • Sequence Deletion
  • Transcription Factors (genetics)

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