Ebrahimi M, Kazemi T, Ganjalikhani-Hakemi M, Majidi J, Khanahmad H, Rahimmanesh I, Homayouni V, Kohpayeh S. Development of a Stable Cell Line, Overexpressing Human T-cell Immunoglobulin Mucin 1.
IRANIAN JOURNAL OF BIOTECHNOLOGY 2015;
13:25-31. [PMID:
28959306 DOI:
10.15171/ijb.1350]
[Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
BACKGROUND
Recent researches have demonstrated that human T-cell immunoglobulin mucin 1 (TIM-1) glycoprotein plays important roles in regulation of autoimmune and allergic diseases, as well as in tumor immunity and response to viral infections. Therefore, targeting TIM-1 could be a potential therapeutic approach against such diseases.
OBJECTIVES
In this study, we aimed to express TIM-1 protein on Human Embryonic kidney (HEK) 293T cell line in order to have an available source of the TIM-1 antigen.
MATERIALS AND METHODS
The cDNA was synthesized after RNA extraction from peripheral blood mononuclear cells (PBMC) and TIM-1 cDNA was amplified by PCR with specific primers. The PCR product was cloned in pcDNA™3.1/Hygro (+) and transformed in Escherichia coli TOP 10 F'. After cloning, authenticity of DNA sequence was checked and expressed in HEK 293T cells. Finally, expression of TIM-1 was analyzed by flow cytometry and real-time PCR.
RESULTS
The result of DNA sequencing demonstrated correctness of TIM-1 DNA sequence. The flow cytometry results indicated that TIM-1 was expressed in about 90% of transfected HEK 293T cells. The real-time PCR analysis showed TIM-1 mRNA expression increased 195-fold in transfected cells compared with un-transfected cells.
CONCLUSIONS
Findings of present study demonstrated the successful cloning and expression of TIM-1 on HEK 293T cells. These cells could be used as an immunogenic source for production of specific monoclonal antibodies, nanobodies and aptamers against human TIM-1.
Collapse