The Role of B7-H4 in Tumor Vaccine

Fudan University

Status: Enrolling

Conditions: Glioma

Treatments: Biological: tumor vaccine

Study type: Observational

Funder types: Other

Identifiers

NCT06156150

KY2023-997

8230162487 (Other Grant/Funding Number)

Details and patient eligibility

About

Glioma patients have poor prognosis because of limited choices of treatment. Therapeutic cancer vaccines have been proved to improve survival in glioma, but resistance is a new challenge for vaccine treatment, and the mechanism is unclear. The applicant found in previous papers that glioma cells induced B7-H4 overexpression in macrophages, and the expression level of B7-H4 is highly correlated with vaccine resistance. Preliminary experiments indicated that B7-H4 protein in macrophages inhibited the expression of ATF3, STAT1 and CXCL9/10, which also resulted in decreased T cell infiltration in glioma model of mouse and was a negative factor of vaccine benefits. Therefore, the applicant hypothesize that B7-H4 inhibits STAT1 transcription by reducing expression of ATF3, resulting in decreased phosphorylated-STAT1 in nucleus, which inhibiting expression and secretion of chemokines 9/10. Thereby, reduced infiltration of T cells in microenvironment will be followed, which ultimately promotes resistance of vaccine treatment in glioma. The follow-up plan of this project will be conducted based on the cells, organoid platform and animal experiments to confirm the role and mechanism of macrophage-derived B7-H4 in secretion of chemokines for T cells and treatment resistance of vaccines. Moreover, the DC vaccine produced by team of the applicant will be used to assess the probability of reversing vaccine resistance when intervening B7-H4 axis. Finally, a model for evaluating clinical benefits from vaccine will be established based on data from clinical trials combining with expression of B7-H4 and clinicopathologic features. This study will provide new evidences for the treatment of cancer vaccines in gliomas.

Enrollment: 160 estimated patients

Sex: All

Ages: 18 to 80 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

Inclusion Criteria:

The patients with glioma in the Department of Neurosurgery of Huashan Hospital Affiliated to Fudan University who meet the following three conditions can be enrolled

1. They were 18-80 years old, male and female;
2. The pathological results of frozen section during operation were gliomas;
3. Tissue (6 mm * 6 mm) can be used for cell sorting on the basis of not affecting clinical routine diagnosis;
4. Sign informed consent.

Exclusion criteria

Patients who meet any of the following criteria will not be included in this study:

1. Participants in other clinical trials;
2. Pregnant women.

Trial design

160 participants in 2 patient groups

glioma patients receiving conventional treatment

Description:

surgery+radiotherapy+chemotherapy

glioma patients with tumor vaccine

Description:

surgery+radiotherapy+chemotherapy+tumor vaccine

Treatment:

Biological: tumor vaccine