Construction and evaluation of recombinant plasmid containing human triggering receptor expressed on myeloid cells-1 gene / 浙江大学学报·医学版
Journal of Zhejiang University. Medical sciences
;
(6): 477-482, 2010.
Article
in Chinese
| WPRIM
| ID: wpr-319873
ABSTRACT
<p><b>OBJECTIVE</b>To construct a eukaryotic expression plasmid containing human triggering receptor expressed on myeloid cells-1(TREM-1) gene.</p><p><b>METHODS</b>The entire gene coding region of human TREM-1 was amplified from total RNA of human peripheral blood by means of RT-PCR. The fragment of TREM-1 was cloned to vector pUCm-T. After digestion by restriction endonuclease BamH I and Pst I, the fragment was subcloned into the eukaryotic expressing vector pEGFP-C3. This recombinant vector was transfected into 293 cells using liposome. The expression level of TREM-1 was determined by fluorescence microscope and Western blot assay. The recombinant TREM-1 vector was transfected into THP-1 cells. After stimulation with 100 ng/ml LPS for 24 h, the mRNA levels of TNF-α and IL-1β were measured using RT-PCR.</p><p><b>RESULT</b>The expression vector was constructed, and the result of the DNA sequencing showed that the constructed plasmid containing the TREM-1 gene. Fluorescence microscope and Western blot analysis showed that TREM-1 protein was expressed in 293 cells successfully. After transfection into THP-1 cells, recombinant TREM-1 could upregulate the mRNA levels of TNF-α and IL-1β.</p><p><b>CONCLUSION</b>Eukaryotic expression plasmid pEGFP-TREM-1 is successfully constructed and showed biological activity.</p>
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Plasmids
/
Membrane Glycoproteins
/
Receptors, Immunologic
/
Transfection
/
Cells, Cultured
/
Triggering Receptor Expressed on Myeloid Cells-1
/
Genetic Vectors
/
Genetics
Limits:
Humans
Language:
Chinese
Journal:
Journal of Zhejiang University. Medical sciences
Year:
2010
Type:
Article
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