Did Tanikawa et al. show potent detoxification effects of NATTOKINASE on virus spike protein and vaccine spike protein by extrapolation? Yes, 100%, good findings! 'Degradative Effect of Nattokinase

‘Therapeutic agents against SARS-CoV-2 remain unclear.

SARS-CoV-2 has a spike protein (S protein), and cleavage of the S protein is essential for viral entry.

Nattokinase is produced by Bacillus subtilis var. natto and is beneficial to human health.

Examined the effect of nattokinase on the S protein of SARS-CoV-2. When cell lysates transfected with S protein were incubated with nattokinase, the S protein was degraded in a dose- and time-dependent manner.

Immunofluorescence analysis showed that S protein on the cell surface was degraded when nattokinase was added to the culture medium. Thus, our findings suggest that nattokinase exhibits potential for the inhibition of SARS-CoV-2 infection via S protein degradation.’