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Methodology for detecting trace amounts of microchimeric DNA from peripheral murine white blood cells by real-time PCR

Abstract

Real-time PCR methodology can successfully quantitate microchimeric cell populations at a concentration of 100 microchimeric cells/100,000 host cells; however, it has not been successful in quantitating DNA from trace numbers of microchimeric white blood cells which we reported are present in murine peripheral blood at a concentration as low as 2/100,000 host cells. We report methodology using primers for a portion of the H2-kb murine histocompatibility sequence, specific for the C57BL/6J mouse. When these primers were used in the presence of 11,000 µM primer, a 20-fold increase in the median manufacturer’s recommended concentration, the assay could be optimized to detect 34 pg of C57BL/6J DNA in a background of 2.5 µg of carrier BALB/cJ DNA (1/100,000). These conditions resulted in a detection limit half as sensitive as that found when no carrier DNA was present.

References

  1. Artlett CM, Smith JB, Jimenez SA. Identification of fetal DNA and cells in skin lesions from women with systemic sclerosis.N Eng J Med 1998; 338:1186–1191.

    Article  CAS  Google Scholar 

  2. Artlett CM, Cox LA, Ramos RC, Dennis TN, Fortunato RA, Hummers LK, Jimenez SA, Smith JB. Increased microchimeric CD+ T lymphocytes in peripheral blood from women with systemic sclerosis.Clin Immunol 2002; 103:303–308.

    Article  PubMed  CAS  Google Scholar 

  3. Hahn S, Zhong XY, Burk MR, Troeger C, Holzgreve W. Multiplex and real-time quantitative PCR on fetal DNA in maternal plasma. A comparison with fetal cells isolated from maternal blood.Ann NY Acad Sci 2000; 906:148–152.

    Article  PubMed  CAS  Google Scholar 

  4. Lo YMD, Tein MSC, Lau TK, Haines CJ, Leung TN, Poon PMK, Wainscoat JS, Johnson PJ, Chang PMZ, Hjelm NM. Quantitative analysis of fetal DNA in maternal plasma and serum: implications for noninvasive prenatal diagnosis.Am J Hum Genet 1998; 62:768–775.

    Article  PubMed  CAS  Google Scholar 

  5. Poon LL, Leung TN, Lau TK, Lo YM. Prenatal detection of fetal Down’s syndrome from maternal plasma.Lancet 2000; 356:1819–1820.

    Article  PubMed  CAS  Google Scholar 

  6. Lo YM, Hjelm NM, Fidler C, Sargent IL, Murphy MF, Chamberlain PF, Poon PM, Redman CW, Wainscoat JS. Prenatal diagnosis of fetal RhD status by molecular analysis of maternal plasma.N Eng J Med 1998; 339:1734–1738

    Article  CAS  Google Scholar 

  7. Byrne P, Huang W, Wallace VM, Shean MK, Zhang Z, Zhong Q, Theodossiou C, Blakesley H, Kolls JK, Schwarzenberger P. Chimerism analysis in sexmismatched murine transplantation using quantitative realtime PCR.Biotechniques 2002; 32:276–286.

    Google Scholar 

  8. Saiki RK, Gelfand DH, Stoffel S, Scharf SJ, Higugchi R, Horn GT, Mullis KB, Erlich HA. Primer-directed enzymatic amplification of DNA with a thermostable DNA polymerase.Science 1988; 239:487–491.

    Article  PubMed  CAS  Google Scholar 

  9. Christner PJ, Artlett CM, Conway RF, Jimenez SA. Increased numbers of microchimeric cells of fetal origin and dermal fibrosis in mice following injection of vinyl chloride.Arthritis Rheum 2000; 43:2598–2605.

    Article  PubMed  CAS  Google Scholar 

  10. Ollo R, Rougeon F. Gene conversion and polymorphism: generation of mouse immunoglobulin gamma 2a chain alleles by differential gene conversion by gamma 2b chain gene.Cell 1983; 32:515–523.

    Article  PubMed  CAS  Google Scholar 

  11. A.B.W.S. (Applied Biosystems Web Site) http://docs.appliedbiosystems.com/pebiodocs/04304449.p df

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Correspondence to Paul J. Christner.

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Published: April 7, 2003

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Artlett, C.M., Dito, C.G. & Christner, P.J. Methodology for detecting trace amounts of microchimeric DNA from peripheral murine white blood cells by real-time PCR. Biol. Proced. Online 5, 103–107 (2003). https://doi.org/10.1251/bpo51

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  • DOI: https://doi.org/10.1251/bpo51

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