CART-PSMA Cells for Advanced Prostate Cancer

"This study consists of 2 parts:~Part A (Dose Escalation): The investigators are looking the highest dose of the study intervention that can be administered safely without severe or unmanageable side effects in participants that advanced prostate cancer.~Part B (Expansion Cohort): Participants will be treated at the respective dose (at or below the Maximum Tolerated Dose), as determined during Part A (Dose Escalation).~Up to 4 dosing cohorts, with up to 3 subjects enrolled in each cohort, will be explored as follows:~Cohort 1： CART-PSMA cells 1-3x10\^7/M\^2 (body surface area); Cohort 2： CART-PSMA cells 1-3x10\^8/M\^2 (body surface area); Cohort 3： Lymphodepletion chemotherapy + CART-PSMA cells 1-3x10\^7/M\^2 (body surface area); Cohort 4： Lymphodepletion chemotherapy + CART-PSMA cells 1-3x10\^8/M\^2 (body surface area)."