passages.id: split_5_test_788_passage
passages.type: progene_text
passages.text: T cells treated with B-oligomer did not initiate signal transduction in response to macrophage inflammatory protein ( MIP ) - 1beta or RANTES ( regulated upon activation , normal T cell expressed and secreted ) ; however , cell surface expression of CCR5 and binding of MIP-1beta or HIV-1 to such cells were not impaired .