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Qu N, Wang R, Meng Y, Liu N, Zhai J, Shan F. Methionine enkephalin inhibited cervical carcinoma via apoptosis promotion and reduction of myeloid derived suppressor cell infiltrated in tumor. Int Immunopharmacol 2022; 110:108933. [PMID: 35738090 DOI: 10.1016/j.intimp.2022.108933] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2022] [Revised: 06/03/2022] [Accepted: 06/06/2022] [Indexed: 02/07/2023]
Abstract
Immunotherapy for cervical carcinoma is becoming increasingly important recently. In these studies methionine enkephalin (menk) is shown to inhibit cervical tumor cell proliferation in vitro in association with an increase in the expression of apoptosis markers and mediators, including an increase in fas, caspase 8, and caspase 3 expression and intrinsic expression of the signaling pathway mediator bax. In vivo, tumor growth was restrained in mice xenotransplant model with typical pathological features of apoptosis. Furthermore, myeloid derived suppressor cells (MDSCs) had a significant decrease in circulation and in tumor site. In brief, these findings showed menk could inhibit tumor growth in vitro and in vivo, providing direction of further research and clinical application prospect.
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Affiliation(s)
- Na Qu
- Department of Immunology, School of Basic Medical Science, China Medical University, No. 77, Puhe Road, Shenyang 110122, Liaoning Province, China; Department of Gynecology, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, No. 44, Xiaoheyan Road, Shenyang 110042, Liaoning Province, China
| | - Ruizhe Wang
- Department of Gynecology, No. 1 Teaching Hospital, China Medical University, No. 155, North Nanjing Street, Shenyang 110001, Liaoning Province, China
| | - Yiming Meng
- Central Laboratory, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, No. 44, Xiaoheyan Road, Shenyang 110042, Liaoning Province, China
| | - Ning Liu
- Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, No. 36 Sanhao Street, Shenyang 110004, Liaoning Province, China
| | - Jingbo Zhai
- Medical College, Inner Mongolia Minzu University, Tongliao 028000, China; Key Laboratory of Zoonose Prevention and Control at Universities of Inner Mongolia Autonomous Region, Tongliao 028000, China
| | - Fengping Shan
- Department of Immunology, School of Basic Medical Science, China Medical University, No. 77, Puhe Road, Shenyang 110122, Liaoning Province, China.
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