Board Thread:Theories and Speculation/@comment-1512913-20150221101637/@comment-26302001-20150306123736

He used the cells to repair Sasuke's heart, by implanting them into his heart.. Hashirama's cells carry a very strong life force and very strong healing ability which is why Kabuto used it. Sasuke's Aorta right on his heart was severed he was definitely going to die if Kabuto did not inject/implant Hashirama dna into/onto his heart. Whether he displayed the benefits or not doesn't matter because it doesn't mean he doesn't have it.