TITLE

Detection of Mycoplasma species in cell culture by PCR and RFLP based method: effect of BM-cyclin to cure infections

AUTHOR(S)
Gopalkrishna, V.; Verma, H.; Kumbhar, N. S.; Tomar, R. S.; Patil, P. R.
PUB. DATE
October 2007
SOURCE
Indian Journal of Medical Microbiology;Oct2007, Vol. 25 Issue 4, p364
SOURCE TYPE
Academic Journal
DOC. TYPE
journal article
ABSTRACT
Purpose: A two-stage nested polymerase chain reaction (PCR) assay system was described that amplifies the 16S-23S rRNA spacer region sequences of Mycoplasma and Acholeplasma infections in cell cultures and virus stocks.Methods: Established cell lines and virus stocks were screened for the presence of Mycoplasma by using nested PCR using two sets of outer and inner primers, amplifies 16S-23S rRNA. PCR and restriction fragment length polymorphism (RFLP) assay was used to detect and identify most of the species-specific Mycoplasmas involved in cell cultures and virus stock contaminants. Infected cultures detected by PCR-RFLP were further treated with BM-cyclin (5 microg/mL) and passaged for three times and tested for Mycoplasma infections by PCR-RFLP.Results: Mycoplasma pirum and Mycoplasma orale infections were detected by nested PCR. Species specificity was identified by using RFLP of Vsp I, Cla I and Hin dIII restriction enzymes. Mycoplasma infections were cured by treatment with BM-cyclin. This was further confirmed by non-amplification of PCR amplimers in BM-cyclin treated vs. non-treated cultures.Conclusions: Regular monitoring of cell cultures for Mycoplasma infections and identification of species-specific Mollicutes will identify the source of contaminations. This approach can be used for quality control of the biological reagents used in cell culture and virology laboratories.
ACCESSION #
28056838

 

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