The transfer of purine metabolites via the medium rather than through cell contacts.
D000818:Animals; D002450:Cell Communication; D002460:Cell Line; D006224:Cricetinae; D003470:Culture Media; D005347:Fibroblasts; D007041:Hypoxanthine Phosphoribosyltransferase / Q000378:metabolism; D007042:Hypoxanthines / Q000378:metabolism; D007739:L Cells; D051379:Mice; D011687:Purines / Q000378:metabolism*
D003470:Culture Media; D007042:Hypoxanthines; D011687:Purines; D007041:Hypoxanthine Phosphoribosyltransferase