Regulation of the 25-hydroxyvitamin D₃ 1 alpha hydroxylase and 24-hydroxylase gene promoters.
Date
2003
Authors
Gao, Xiu-Hui
Editors
Advisors
May, Brian
Dwivedi, Prem
Dwivedi, Prem
Journal Title
Journal ISSN
Volume Title
Type:
Thesis
Citation
Statement of Responsibility
Conference Name
Abstract
1,25(OH)2D3, plays important roles in many process such as calcium homeostasis. The vitamin D hydroxylase enzymes, vitamin D l-hydroxylase (La(OH)ase) and vitamin D 24-hydroxylase (CYP24) are the key rate limiting enzymes responsible for the bioaotivation and degradation of 1,25(OH)2rD3, respectively. Several physiological factors including PTH, 1,25(OH)2rD3 , and calcitonin interact to regulate the gene expression of the two enzymes resulting in regulation of serum and tissue levels of 1,25(OH)2rD3. The aim of the study in this thesis was to understand the molecular mechanism by which PTH regulates expression of the human 1a(OH)ase gene promoter in the kidney and also the molecular mechanisms by which 1,25(OH)2rD3 and calcitonin regulate expression of the rat CYP24 promoter in kidney and osteoblast cells.
School/Discipline
Dept. of Molecular Biosciences
Dissertation Note
Thesis (Ph.D.) -- University of Adelaide, Dept. of Molecular Biosciences, 2003
Provenance
This electronic version is made publicly available by the University of Adelaide in accordance with its open access policy for student theses. Copyright in this thesis remains with the author. This thesis may incorporate third party material which has been used by the author pursuant to Fair Dealing exception. If you are the author of this thesis and do not wish it to be made publicly available or If you are the owner of any included third party copyright material you wish to be removed from this electronic version, please complete the take down form located at: http://www.adelaide.edu.au/legals