F The percentage of mCherry-expressing recipient cells containing Mito-GFP was quantified. Twenty thousand events were acquired for each condition and data were analyzed using FlowJo analysis software. When co-cultured through the filter in transwells, only 0.01% or fewer recipient cells contained Mito-GFP, and this group is not included in the graph to avoid an overcrowded figure. Three independent experiments were conducted. Data information: data were analyzed using FlowJo analysis software. When co-cultured through the filter in transwells, only 0.01% or f 