passages.id: split_5_test_3496_passage
passages.type: progene_text
passages.text: We used quantitative real - time RT - PCR to not only investigate the mRNA levels of anthrax toxin receptor 1 ( ANTXR1 ) and 2 ( ANTXR2 ) in the murine J774A.1 macrophage cells and different tissues of mice , but also evaluate the effect of anthrax edema toxin and Bacillus anthracis Sterne spores on the expression of mRNA of these receptors .