There are specialized treatments that can reduce the anti-a antibody that can make this possible. is it dangerous for the person who receive kidney?

Unclear question: If by anti-A you antibodies to blood group A, it can be reduced by plasmapheresis and chemotherapy. If it is the kidney from the person with anti-A, the recipient is not at risk, provided other issues related to transplantation are addressed.

Unclear: I think I can see what you're asking in regard to IgA and transplant medicine. However, I'd like to make sure. If you're worried about IgA nephropathy and a possible recurrence after a transplantation, unfortunately it occurs fairly regularly, typically 2-3 years after transplantation.