This is very impressive, top labs doing research often don't have experimental designs that are this elaborate. Was the TCR and BCR-seq you conducted helpful to design cell therapies, neoantigen vaccines, and monitor progress?
Given that you carry the HLA-B*27:05 allele, you might have been blessed by being predisposed to a better response. But probably you want to keep an eye on future autoimmunity issues. Talking from experience...