Use of highly sensitive mitochondrial probes to detect microchimerism in xenotransplantation models

Ornella Parolini, Alberto Albertini, Maddalena Soncini, Patrizia Bonassi Signoroni, Marco Bailo, Daniela Zatti, Alessandra Gregori, Guerino Lombardi, Georg S. Wengler

Risultato della ricerca: Contributo in rivistaArticolo in rivista

11 Citazioni (Scopus)

Abstract

Chimerism, defined as the co-existence of cells of different origin within the same organism, has received much attention in hematopoietic cell and organ transplantation because of the strict relationship between its establishment and the induction of specific tolerance. Traditional methods applied for chimerism detection, such as immunohistochemistry, cytogenetics, fluorescent-activated cell sorter analysis, and serological and biochemical testing, are limited by their sensitivity. We have established a highly sensitive molecular approach based on the amplification of the mitochondrial cytochrome B gene and tested its specificity and sensitivity level in six different mammalian species, including human, pig, mouse, rat, sheep and rabbit. Increased sensitivity of detection of specific amplification products was obtained by the non-radioactive Southern blot technique. This novel approach allows the detection of one cell against the background of 1 to 4 x 10(6) xenogenec cells and will be helpful for high-sensitivity analysis of donor cell engraftment after xenotransplantation procedures in these animal models.
Lingua originaleEnglish
pagine (da-a)80-85
Numero di pagine6
RivistaXenotransplantation
Volume13
DOI
Stato di pubblicazionePubblicato - 2006

Keywords

  • Animals
  • Biomarkers
  • Chimerism
  • Cytochromes b
  • DNA, Mitochondrial
  • Humans
  • Mitochondria
  • Sensitivity and Specificity
  • Transplantation, Heterologous

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