Effects of ion exchange capacities on attachment and growth of anchorage-dependent HeLa cell

An effect of ion exchange capacity of petri dish on cell attachment and growth of an anchorage-dependent animal cell was studied. We proposed a new idea to analyze cell attachment kinetics. As the experimental result of cell attachment to a petri dish, the attachment rate constant and the maximum number of attached cells both increase with increasing the ion exchange capacity. However, no direct correlation between the ion exchange capacity and the cell growth was observed. An influence of ion exchange capacity on the cell growth of initially attached cells onto the petri dish with different ion exchange capacities was examined. The specific growth rate of initially attached cells decreased with increasing the ion exchange capacity. The detrimental effect of the ion exchange capacity on the specific growth rate of the initially attached cells exists during the cell cultivation period. In the ion exchange capacity of 27 meq/m², the specific growth rate drastically decreased. It is considered that there is optimum value of the ion exchange capacity for the cell growth and attachment. It is concluded that the optimum ion exchange capacity is 18 meq/m².