Another day, another signalling pathway...
https://www.futurity.org/hearing-loss-cochlear-regeneration-1888982/
One of the authors is Albert Edge, co-founder of Audion Therapeutics, co-researcher with some of the Frequency Therapeutics team in the days before Frequency Therapeutics. The trouble with reading this stuff is that there is no-one to bring it together and make sense of it in a global context. Each lab reports its work in isolation. They all talk about how their work holds hope for future hearing loss treatments but they don't mention that there are treatments in clinical trial right now.
How many signalling pathways have a role in hair cell regeneration? Do they have to be co-ordinated? How much do we really know? It seems that there should be some sort of global co-ordinator out there who identifies which pieces of the puzzle are missing and directs specific labs to try to find those missing pieces. Instead, they all meander along, following their own inclinations... I'm pretty sure they'll get there in the end though- hopefully while I'm still alive.