Construction and in vitro activity of specific dual-ribozyme against alpha 1 (I) and (III) procollagen genes.
- Author:
Er-Sheng KUANG
1
;
Fu-Hua YANG
;
Shu-Juan WEN
;
Kai-Jun XIANG
Author Information
1. College of Life Science, Wuhan University, Wuhan 430072, China.
- Publication Type:Journal Article
- MeSH:
Base Sequence;
Exons;
Molecular Sequence Data;
Procollagen;
genetics;
RNA;
metabolism;
RNA, Catalytic;
genetics;
metabolism;
Temperature
- From:
Chinese Journal of Biotechnology
2002;18(3):327-330
- CountryChina
- Language:Chinese
-
Abstract:
Overexpression of procollagen gene can cause the extraordinary increase of collagen's synthesis and therefore lead to the keloid and hypertrophic scar. To utilize ribozyme to suppress the expression of procollagen genes, a eukaryotic expression recombinant plasmid containing a dual-ribozyme gene against alpha 1 (I) and alpha 1 (III) procollagen genes was constructed. The ribozyme from in vitro transcription was incubated with target transcripts from recombinant plasmids which separately contained the fragments of the second exons of pro alpha 1 (I) and pro alpha 1 (III) collagen genes under various experimental conditions. The results showed that the dual-ribozyme could efficiently catalyze the specific cleavage of the target RNAs at 37 degrees C, 42 degrees C, 50 degrees C and Mg2+ concentration from 10 mmol/L to 20 mmol/L. This work provided a basis for further study on the ribozyme to suppress the expression of procollagen genes and control the cicatrization.
