For relapsed/refractory mantle cell lymphoma patients that previously treated with BTK inhibitors: The first part involves 6 cycles of combined therapy with zuberitamab, selinexor, dexamethasone, and thalidomide. This targeted combination regimen can enhance efficacy while reducing toxic side effects. The second part utilizes Zuberitamab plus selinexor for maintenance consolidation therapy, thereby reducing relapse and prolonging survival.

Inclusion Criteria:

1. Ages 18-70, ECOG score 0-2(including ages 18 and 70);
2. Overall Survival > 6 months;
3. The diagnosis of mantle cell lymphoma was confirmed by histopathology. 4.At least one measurable lesion;

5.Acceptable hematologic parameters, no contraindications to chemotherapy, absolute neutrophil ≥1.0 × 10 ^ 9 L, platelet ≥75 × 10 ^ 9 L, hemoglobin ≥80 g/L (except for patients with bone marrow infiltration) 6.Liver function: direct bilirubin ≤1.5 × upper limit , Alanine transaminase or aspartate transaminase ≤2.5 × upper limit , Alkaline phosphatase≤3 × ULN in patients without non-bone involvement 7.Renal function: serum creatinine ≤1.5 ×ULN 5; 8.Women of Childbearing Potential (WOBCP) or men and their WOBCP partners should agree to take effective contraceptive measures from the signing of ICF and WOBCP must undergo a serum pregnancy test within seven days before the first medication and the results are negative; 9.Recurrent refractory patients after BTK inhibitor treatment; 10.The subjects voluntarily participate the study.

Exclusion Criteria:

1. Refusing to take blood samples;
2. Previous allergies to any of the medications in the regimen;
3. Pregnant and lactating women;
4. The researchers believe that major diseases can cause interference in the trial.;
5. Combined with other tumors.;
6. There are drug-related contraindications to treatment in the protocol;
7. People with severe mental illness;
8. Participating in other clinical trials;
9. Other serious diseases that may limit the subject's participation in this trial, such as: uncontrolled diabetes mellitus; Severe cardiac insufficiency (NYHA classification II or above); Acute coronary syndrome within the past 6 months; Coronary revascularization such as stenting, coronary artery bypass surgery, and other heart and large vessel related surgeries in the past 6 months; Severe arrhythmias include frequent premature ventricular episodes, ventricular tachycardia, rapid atrial fibrillation/atrial flutter, and severe bradycardia. Uncontrolled hypertension: systolic blood pressure > 150 mmHg, diastolic blood pressure > 100 mmHg. Gastric ulcer (gastric ulcer judged by the investigator to be at risk of perforation); Active autoimmune disease (e.g., systemic lupus erythematosus, rheumatoid arthritis, multiple sclerosis, Sjögren's syndrome, autoimmune thrombocytopenia, etc.); Severe respiratory diseases (such as obstructive pulmonary disease and history of bronchospasm), etc.;
10. In the opinion of the investigators, it is not suitable for enrollment;
11. Hepatitis B core antibody (HBcAb) positive and peripheral blood hepatitis B virus (HBV) DNA titer test is not within the normal reference value; Those who are positive for hepatitis C virus (HCV) antibody and positive for hepatitis C virus (HCV) RNA in peripheral blood; Those who are positive for human immunodeficiency virus (HIV) antibodies; Those who test positive for syphilis.