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'); Reports of Biochemistry and Molecular Biology rbmb.net Basic Sciences http://rbmb.net 1 admin 2322-3480 2322-3480 10.61882/rbmb en jalali 1395 7 1 gregorian 2016 10 1 5 1 online 1 fulltext
en Establishment a CHO Cell Line Expressing Human CD52 Molecule زیست شناسی سلولی Cell Biology <p style="text-align: justify;"><em><strong>Background: </strong></em>CD52 is a small glycoprotein with a GPI anchor at its C-terminus. CD52 is expressed by Normal and malignant T and B lymphocytes and monocytes. There are detectable amounts of soluble CD52 in plasma of patients with CLL and could be used as a tumor marker. Although the biological function of CD52 is unknown but it seems that CD52 may be involved in migration and activation of T-cells .The aim of this study was to clone and express human CD52 gene in CHO cell line and studying its function in more details.</p> <p style="text-align: justify;"><em><strong>Methods:</strong></em> Based on GenBank databases two specific primers were designed for amplification of <em>cd52</em> gene. Total RNA was extracted from Raji cell line and cDNA synthesized. Amplified fragment was cloned in pBudCE4.1 vector. The new construct was transfected to CHO-K1 cell line using electroporation method. Expression of recombinant CD52 protein was evaluated by Real time PCR and flow cytometry methods.</p> <p style="text-align: justify;"><strong><em>Results:</em> </strong>Amplification of CD52 gene using specific primers on Raji cDNA showed a 209 bp band. New construct was confirmed by PCR and restriction pattern and sequence analysis. The new construct was designated as pBudKT1. RT-PCR analysis detected cd52 mRNAs in transfected cells and Flow cytometry Results showed that 78.4 % of cells represented <em>CD52</em> in their surfaces.</p> <p style="text-align: justify;"><em><strong>Conclusions: </strong></em>In conclusion, we established a human CD52 positive cell line, CHO-CD52, and the protein was expressed on the membrane. Cloning of the CD52 gene could be the first step for the production of therapeutic monoclonal antibodies and detection systems for soluble CD52 in biological fluids.</p> CD52, Recombinant DNA, Therapeutic and diagnostic proteins 56 61 http://rbmb.net/browse.php?a_code=A-10-1-66&slc_lang=en&sid=1 Khadijeh Tati 10031947532846006188 10031947532846006188 No Shiraz Institute for Cancer Research, School of Medicine, Shiraz University of Medical sciences, Shiraz, Iran - Department of Immunology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran Mahsa Yazdanpanah-Samani 10031947532846006189 10031947532846006189 No Shiraz Institute for Cancer Research, School of Medicine, Shiraz University of Medical sciences, Shiraz, Iran Amin Ramezani 10031947532846006190 10031947532846006190 No Shiraz Institute for Cancer Research, School of Medicine, Shiraz University of Medical sciences, Shiraz, Iran - Department of Medical Biotechnology, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Iran Elham Mahmoudi Maymand 10031947532846006191 10031947532846006191 No Shiraz Institute for Cancer Research, School of Medicine, Shiraz University of Medical sciences, Shiraz, Iran Abbas Ghaderi ghaderia@sums.ac.ir 10031947532846006192 10031947532846006192 Yes Shiraz Institute for Cancer Research, School of Medicine, Shiraz University of Medical sciences, Shiraz, Iran