Construction of Plasmid Insulin Gene Vector Containing Metallothionein IIA (pcDNAMTChIns) and Carbohydrate Response Element (ChoRE), and Its Expression in NIH3T3 Cell Line

AUTHORS

Hossein Piri 1 , Bahram Kazemi 3 , Mohsen Rezaei 1 , Mojgan Bandehpour 3 , Iraj Khodadadi 1 , Taghi Hassanzadeh 1 , Jamshid Karimi 1 , Fatemeh Yarian 3 , Habibollah Peirovi 4 , Amir Hossein Tavakoli 5 , Mohammad Taghi Goodarzi 6 , *

1 Department of Biochemistry and Nutrition, School of Medicine, Hamadan University of Medical Science, IR Iran

3 Biotechnology Department, Faculty of Medicine, Shahid Beheshti University of Medical Science, IR Iran

4 Nano Medicine and Tissue Engineering Research Center- Shahid Beheshti University of medical sciences, IR Iran

5 Iranian Tissue Bank Research and Preparation Center, Imam Khomeini Hospital Complex, Tehran University of Medical Science, IR Iran

6 Research Center for Molecular Medicine, Hamadan University of Medical Science, [email protected], IR Iran

How to Cite: Piri H, Kazemi B, Rezaei M, Bandehpour M, Khodadadi I, et al. Construction of Plasmid Insulin Gene Vector Containing Metallothionein IIA (pcDNAMTChIns) and Carbohydrate Response Element (ChoRE), and Its Expression in NIH3T3 Cell Line, Int J Endocrinol Metab. Online ahead of Print ; 10(3):543-547. doi: 10.5812/ijem.4540.

ARTICLE INFORMATION

International Journal of Endocrinology and Metabolism: 10 (3); 543-547
Published Online: June 29, 2012
Article Type: Original Article
Received: February 17, 2012
Accepted: April 14, 2012
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Abstract

Background: Type 1 diabetes mellitus is one of the metabolic diseases that cause insulin-producing pancreatic cells be destroyed by immune system self-reactive T cells. Recently, new treatment methods have been developed including use of the stem cells, islet cells transplantation and gene therapy by viral and non-viral gene constructs.

Objectives: The aim of this project was preparing the non-viral vector containing the glucose inducible insulin gene and using it in the NIH3T3 cell line.

Materials and Methods: Cloning was carried out by standard methods. Total RNA was extracted from pancreatic tissue, RNA was converted to cDNA using RT-PCR reaction and preproinsulin gene was amplified using specific primers. PNMTCH plasmid was extracted and digested by NotI, HindIII, and MTIIA and ChoRE genes were purified and cloned into pcDNA3.1 (-) plasmid and named pcDNAMTCh. Finally, the preproinsulin genes were cloned into pcDNA3.1 (-) plasmid and pcDNAMTChIns was built.

Results: The cloned gene constructs were evaluated by restriction enzyme digestion and RT-PCR. The NIH3T3 cells were transfected by plasmid naked DNA containing preproinsulin gene and expression was confirmed by Reverse Transcriptase PCR and Western Blotting Techniques.

Conclusions: Gel electrophoresis of PCR products confirmed that cloning was performed correctly. The expression of preproinsulin gene in recombinant plasmid in NIH3T3 cell line was observed for the first time. The findings in this study can be the basis of further research on diabetes mellitus type 1 gene therapy on animals.

Keywords

Type 1 Diabetes Mellitus Gene Therapy Insulin

© 2012, International Journal of Endocrinology and Metabolism. This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/) which permits copy and redistribute the material just in noncommercial usages, provided the original work is properly cited.

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