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Interactions of Opa+ E. coli and GC with HeLa-CGM1a cells. Opa+ E. coli (A) and GC (B) were incubated with HeLa-CGM1a and HeLa-Neo cells in RPMI medium 1640 buffer with or without soluble heparin (Hep. 30 μg/ml). pEXI adhere to the CGM1a cells but not the control cells. OpaA mediated adherence is inhibited by heparin, but the adherence of pEXI to CGM1a is not influenced by soluble heparin. Similar results were observed with OpaA and OpaI GC.
