Immune cell pharmaceutical composition and use thereof

WO2026130572A1PCT designated stage Publication Date: 2026-06-25SHANGHAI JUNCELL THERAPEUTICS CO LTD

Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
SHANGHAI JUNCELL THERAPEUTICS CO LTD
Filing Date
2025-12-22
Publication Date
2026-06-25

AI Technical Summary

Technical Problem

In current immune cell infusion therapy, the use of high doses of fludarabine and cyclophosphamide leads to significant toxic side effects. Furthermore, cyclophosphamide has a long half-life in vivo, which affects the status of peripheral blood cells. Therefore, it is necessary to find alternative drugs to enhance tumor antigen presentation and T cell killing effects.

Method used

A combination of gemcitabine and hydroxychloroquine was used to replace high doses of fludarabine and cyclophosphamide in the preparation of a tumor cell killing agent, which increased the expression of type I HLA on the surface of tumor cells and enhanced the killing effect of T cells on tumors.

Benefits of technology

It effectively enhances the presentation of tumor antigens, strengthens the killing effect of T cells on tumors, reduces the toxic side effects of drugs, and improves the safety and effectiveness of treatment.

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Abstract

Provided in the present invention is a pharmaceutical composition containing gemcitabine or a derivative thereof, a tumor cell killing agent, and a pharmaceutically acceptable excipient. Further provided in the present invention is the use of gemcitabine or the derivative thereof in the preparation of a drug for treating tumors.
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