When the nerves connected to taste buds are cut, the buds usually wither and later regrow. But Korean researchers found that not all taste cells fade equally. Sweet-sensing cells, supported by the protein c-Kit, are uniquely resilient. Using mouse and organoid experiments, the team showed that blocking c-Kit with the cancer drug imatinib eliminated these survivors, preventing regeneration. The discovery reveals how specific cell types drive taste recovery.

A world-first study has proven microbes essential for human health can survive the extreme forces of space launch.