Identification of Iranian BHK-21-C5 Cell Line by Two Steps Polymerase Chain Reaction
2021
F Ziyaeifar | S Soleimani | M Lotfi
Authentication of animal cell lines in cell banks is one of the most important programs regulated during cell culture and storage. This operation provides a thorough and beneficial document which can be advantageous for the functional use of animal cell lines. Therefore, various procedures are used to prevent misidentified cells, cross-contamination to other cell lines, and mislabeling errors leading to incorrect assessment. These contaminants can result in major financial disadvantages. One of the practical methods in this field is a molecular procedure which can demonstrate more accurate results. In the present study, the BHK-21 (C5) was characterized, and it was tried to determine the identity of BHK-21 (C5) as a continuous cell line by Polymerase chain reaction (PCR) molecular procedure in Iran. The cytochrome c oxidase I (CO1) gene was selected as a prevalent DNA fragment for the authentication of the BHK-21 (C5) cell line, along with six cell lines, including Chinese hamster ovary, Lamb kidney, Razi Bovine Kidney, Medical Research Council cell strain 5, Monkey Green Kidney, and Goat Lymphocyte. After amplification, PCR products were analyzed by agarose gel electrophoresis to ensure their accuracy. The results of characterization were indicated, cell viability was estimated to be about 92%, and a uniform cell culture was obtained. The doubling time and µ ratio equivalent were obtained at 20.5 h and 0.03, respectively. Sterility tests revealed that the cell seed was free of bacterial, mycoplasma, and mycobacterial infections. The results of molecular identification revealed that the identification of this cell line was approved and can be used in studies, diagnosis, production, and quality control of biological products.
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