Has anyone read any other studies with results on any testing to determine if the spike proteins from the mRNA vaccines can misfold and develop into prions?

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7988450/
>SARS-CoV-2 Spike S1 protein receptor binding domain (SARS-CoV-2 S1 RBD) binds to heparin and heparin binding proteins. Moreover, heparin binding accelerates the aggregation of the pathological amyloid proteins present in the brain

It would seem from my own intuition that given the nature of the mRNA vaccine mechanism misfolding spike proteins are not out of the question. Though study above seems to indicate that properly folded spikes behave in much the same way regardless.