JY-231

This study is an investigator-initiated single center, single arm clinical study with a target population of patients with relapsed or refractory B-cell Malignancies.
It is an early exploratory clinical study of the safety, tolerability and initial efficacy of JY231 injection in the treatment of relapsed or refractory B-cell Malignancies.

This study is an investigator-initiated single center, single arm clinical study with a target population of patients with refractory autoimmune diseases. It is an early exploratory clinical study of the safety, tolerability and initial efficacy of CD19 CAR-T in the treatment of refractory autoimmune diseases.