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Comparison of mixed cell culture containing genetically engineered BGMK and CaCo-2 cells (Super E-Mix) with RT-PCR and conventional cell culture for the diagnosis of enterovirus meningitis.
J Clin Virol. 2002 Jul; 25 Suppl 1:S13-8.JC

Abstract

BACKGROUND

Enteroviral meningitis has traditionally been diagnosed by cell culture. More recently, molecular techniques and shell vials with a mixture of human colon carcinoma and genetically engineered buffalo green monkey kidney cells (BGMK cells) (Super E-Mix) have been described.

OBJECTIVE

We compared the results of this new cell culture technique with two reverse transcriptase polymerase chain reaction (RT-PCR) techniques and conventional cell culture to assess the accuracy of these various methods.

STUDY DESIGN

2 ml of cerebrospinal fluid (CSF) was obtained from 72 patients with suspected viral meningitis. 600 microl was used for conventional cell culture and 200 microl was inoculated to each of two Super E-Mix vials. One vial was incubated for 24 h, then stained with pan-enterovirus antibody, and the other was examined for CPE daily for 5 days and stained when positive or at the end of incubation. The final aliquot (500 microl) was centrifuged at 25,000g, and the pellet in 140 microl of supernatant was used for ribonucleic acid (RNA) extraction and tested by commercial single-step (Chemicon, Temecula, CA) and two-step (Argene, Varilhes, France) RT-PCR methods.

RESULTS

Conventional culture was 51% sensitive and 100% specific. The Super E-Mix was slightly higher (sensitivity 76%, specificity 100%). The Chemicon and Argene PCR methods had a sensitivity of 93% and 88% and specificity of 90% and 97%, respectively.

CONCLUSION

The Super E-Mix procedure had greater sensitivity than conventional cell culture, but RT-PCR was the most sensitive technique with this type of specimen. The RT-PCR methods performed equally.

Authors+Show Affiliations

Norton Healthcare, Louisville, KY 40202, USA. george.buck@nortonhealthcare.orgNo affiliation info availableNo affiliation info available

Pub Type(s)

Comparative Study
Journal Article

Language

eng

PubMed ID

12091077

Citation

Buck, George E., et al. "Comparison of Mixed Cell Culture Containing Genetically Engineered BGMK and CaCo-2 Cells (Super E-Mix) With RT-PCR and Conventional Cell Culture for the Diagnosis of Enterovirus Meningitis." Journal of Clinical Virology : the Official Publication of the Pan American Society for Clinical Virology, vol. 25 Suppl 1, 2002, pp. S13-8.
Buck GE, Wiesemann M, Stewart L. Comparison of mixed cell culture containing genetically engineered BGMK and CaCo-2 cells (Super E-Mix) with RT-PCR and conventional cell culture for the diagnosis of enterovirus meningitis. J Clin Virol. 2002;25 Suppl 1:S13-8.
Buck, G. E., Wiesemann, M., & Stewart, L. (2002). Comparison of mixed cell culture containing genetically engineered BGMK and CaCo-2 cells (Super E-Mix) with RT-PCR and conventional cell culture for the diagnosis of enterovirus meningitis. Journal of Clinical Virology : the Official Publication of the Pan American Society for Clinical Virology, 25 Suppl 1, S13-8.
Buck GE, Wiesemann M, Stewart L. Comparison of Mixed Cell Culture Containing Genetically Engineered BGMK and CaCo-2 Cells (Super E-Mix) With RT-PCR and Conventional Cell Culture for the Diagnosis of Enterovirus Meningitis. J Clin Virol. 2002;25 Suppl 1:S13-8. PubMed PMID: 12091077.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Comparison of mixed cell culture containing genetically engineered BGMK and CaCo-2 cells (Super E-Mix) with RT-PCR and conventional cell culture for the diagnosis of enterovirus meningitis. AU - Buck,George E, AU - Wiesemann,Marise, AU - Stewart,Linda, PY - 2002/7/2/pubmed PY - 2003/2/14/medline PY - 2002/7/2/entrez SP - S13 EP - 8 JF - Journal of clinical virology : the official publication of the Pan American Society for Clinical Virology JO - J Clin Virol VL - 25 Suppl 1 N2 - BACKGROUND: Enteroviral meningitis has traditionally been diagnosed by cell culture. More recently, molecular techniques and shell vials with a mixture of human colon carcinoma and genetically engineered buffalo green monkey kidney cells (BGMK cells) (Super E-Mix) have been described. OBJECTIVE: We compared the results of this new cell culture technique with two reverse transcriptase polymerase chain reaction (RT-PCR) techniques and conventional cell culture to assess the accuracy of these various methods. STUDY DESIGN: 2 ml of cerebrospinal fluid (CSF) was obtained from 72 patients with suspected viral meningitis. 600 microl was used for conventional cell culture and 200 microl was inoculated to each of two Super E-Mix vials. One vial was incubated for 24 h, then stained with pan-enterovirus antibody, and the other was examined for CPE daily for 5 days and stained when positive or at the end of incubation. The final aliquot (500 microl) was centrifuged at 25,000g, and the pellet in 140 microl of supernatant was used for ribonucleic acid (RNA) extraction and tested by commercial single-step (Chemicon, Temecula, CA) and two-step (Argene, Varilhes, France) RT-PCR methods. RESULTS: Conventional culture was 51% sensitive and 100% specific. The Super E-Mix was slightly higher (sensitivity 76%, specificity 100%). The Chemicon and Argene PCR methods had a sensitivity of 93% and 88% and specificity of 90% and 97%, respectively. CONCLUSION: The Super E-Mix procedure had greater sensitivity than conventional cell culture, but RT-PCR was the most sensitive technique with this type of specimen. The RT-PCR methods performed equally. SN - 1386-6532 UR - https://www.unboundmedicine.com/medline/citation/12091077/Comparison_of_mixed_cell_culture_containing_genetically_engineered_BGMK_and_CaCo_2_cells__Super_E_Mix__with_RT_PCR_and_conventional_cell_culture_for_the_diagnosis_of_enterovirus_meningitis_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S138665320200029X DB - PRIME DP - Unbound Medicine ER -