M. Petrini et al., EXPRESSION OF MULTIDRUG-RESISTANCE (MDR) GENE(S) IN PRIMARY LYMPHOID ORGANS OF CHICKEN IMMUNE-SYSTEM DURING EMBRYONIC-DEVELOPMENT, Experientia, 51(2), 1995, pp. 137-140
The presence of a multidrug resistance (MDR) related protein, P-170, i
n normal and pathological lymphoid cells has been described. The prese
nt report evaluates the expression of the mdr 1 gene by using the reve
rse Polymerase Chain Reaction (PCR) on cells obtained from the thymus
and bursa of chicken embryos starting from day 12 until hatching. Resu
lts show that the thymic cells are positive from day 12 to the end of
the observation period. In contrast, mdr mRNA was detected in the burs
a from day 14 to day 17 of embryonic life. Possible relationships betw
een the expression of mdr and the development of T and B lymphocytes a
re discussed.