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[The construction of pSecTag2/B vector modified by osteoprotegerin]
Yin Cao1, Ling-xuan Mei, Di Wu
1Department of Endodontics, College of Stomatology, Anhui Medical University, Hefei 230032, Anhui Province, China.
Summary
Researchers successfully cloned osteoprotegerin (OPG) cDNA from 293 cells, constructing a pSecTag2/B-OPG vector for potential periodontitis treatment using gene engineering.
Area of Science:
- Biotechnology
- Molecular Biology
- Periodontology
Background:
- Periodontitis poses a significant clinical challenge.
- Tissue engineering and gene engineering offer novel therapeutic avenues.
Purpose of the Study:
- To construct a mammalian secreted expression vector for osteoprotegerin (OPG).
- To facilitate potential periodontitis treatment via gene engineering.
Main Methods:
- Designed primers based on human OPG cDNA sequence.
- Isolated total mRNA from 293 cells and performed RT-PCR.
- Recombined OPG cDNA fragment into pSecTag2/B vector and sequenced.
Main Results:
- RT-PCR yielded OPG cDNA sequences identical to GenBank.
- Restriction enzyme digestion and agarose electrophoresis confirmed successful recombinant plasmid construction.
Conclusions:
- Successfully cloned OPG cDNA from cultured 293 cells.
- Constructed the pSecTag2/B-OPG mammalian secreted expression vector.