CAR-T for Children With Relapsed and Refractory Acute Lymphoblastic Leukemia

Inclusion criteria： 1. The treat history meeting the following criteria: Recurrence of lymphoma patients with imaging (CT/MRI/PET-CT) detection and pathological diagnosis, or recurrence including bone marrow morphology relapse and the MRD recurrence of myeloma patients or leukemia patients, after chemotherapy or stem cell transplantation; Can't get complete remission (including MRD positive) after more than twice repeated chemotherapy of incipient lymphoma, myeloma or leukemia patients; One or twice chemotherapy cannot get remission again (including MRD positive), but not suitable for chemotherapy of incipient lymphoma, myeloma or leukemia patients. 2. There is a measurable lesions before treatment at least; 3. ECOG score≤2; 4. To be aged 1 to 18 years; 5. More than a month lifetime from the consent signing date Exclusion Criteria: 1. Serious cardiac insufficiency, left ventricular ejection fraction\<50%; 2. Has a history of severe pulmonary function damaging; 3. Merging other progressing malignant tumor; 4. Merging uncontrolled infection; 5. Merging the metabolic diseases (except diabetes); 6. Merging severe autoimmune diseases or immunodeficiency disease; 7. Patients with active hepatitis B or hepatitis C; 8. Patients with HIV infection; 9. Has a history of serious allergies on Biological products (including antibiotics); 10. Has acute GvHD on allogeneic hematopoietic stem cell transplantation patients after stopping immunosuppressants a month; 11. Any situation that would increase dangerousness of subjects or disturb the outcome of the clinical study according to the researcher's evaluation.