Exploratory experiment designed to discover new patterns targeting GJA1 in human bone marrow-derived MSCs and immortalized human chondrocytes. Primary outcome: visualization of cell-cell contacts and Cx43 localization during mitochondrial transfer
This experiment used confocal microscopy to visualize the cellular interactions between MSCs and chondrocytes during mitochondrial transfer. Co-cultures were fixed and stained for actin and Cx43 to examine cell-cell contacts and the localization of Cx43 during transfer events. The imaging revealed direct cell contacts between MSCs and chondrocytes, with Cx43 staining enriched at the terminal ends of actin cellular extensions that contained mitochondria in MSCs. This experiment provided morphological evidence for the mechanism of mitochondrial transfer through Cx43-mediated cell-cell contacts and demonstrated the spatial organization of the transfer process.
Co-culture fixation, immunofluorescent staining for actin and Cx43, confocal microscopy imaging
Visualization of direct cell contacts with Cx43 enrichment at sites of mitochondrial transfer
Clear imaging of cell-cell interactions and Cx43 localization
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