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Chen Y, Li J, Pu L, Hu J, Fang L, Zhou F, Zhang H, Yang Y, Rong X, Deng S, Hou L. DNAJB4 suppresses breast cancer progression and promotes tumor immunity by regulating the Hippo signaling pathway. Discov Oncol 2023; 14:144. [PMID: 37548821 PMCID: PMC10406735 DOI: 10.1007/s12672-023-00762-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Accepted: 07/31/2023] [Indexed: 08/08/2023] Open
Abstract
PURPOSE Breast cancer is the most common cancer worldwide. Low DNAJB4 expression levels are strongly correlated with poor prognosis in breast cancer patients. However, the molecular mechanism by which DNAJB4 regulates breast cancer progression is unclear. METHODS The expression of DNAJB4 was validated in human breast cancer tissues, normal human breast tissues, and breast cancer cell lines. CCK-8, colony-forming, and wound healing assays were used to assess the biological effect of DNAJB4 overexpression on cell proliferation and migration in MCF-7 cell lines. Bioinformatic analysis was used to identify the DNAJB4 related pathways in breast cancer. Epithelial-mesenchymal transition (EMT)-related biomarkers and Hippo pathway components were quantified by Western blots. Luciferase and Western blot assays were used to validate which miRNA regulates DNAJB4. In addition, the effects of DNAJB4 on in vivo tumor growth were assessed in xenograft models. RESULTS DNAJB4 was expressed at low levels in human breast cancer tissues and breast cancer cell lines and correlated with poor prognosis. DNAJB4 overexpression significantly inhibited cell proliferation and migration in vitro by activating the Hippo pathway. The dual-luciferase assay showed that hsa-miR-183-5p targeted DNAJB4. Moreover, the effects of DNAJB4 could be reversed by miR-183-5p. In addition, the expression of DNAJB4 was strongly correlated with immune infiltration levels. Notably, DNAJB4 overexpression markedly enhanced CD4 + and CD8 + T cells and reduced PD-L1 levels in 4T1 tumors via the Hippo pathway, which retarded tumor growth in a subcutaneous xenograft tumor mouse model of 4T1 cells. CONCLUSIONS The present study demonstrated that DNAJB4 overexpression inhibited the malignant biological behavior of breast cancer by regulating the Hippo pathway and tumor immunosuppressive environment.
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Affiliation(s)
- Yanru Chen
- Academician (Expert) Workstation, Medical Imaging Key Laboratory of Sichuan Province, Biological Targeting Laboratory of Breast Cancer, Department of Breast and Thyroid Surgery, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, China
- Medical Imaging Key Laboratory of Sichuan Province, Institute of Basic Medicine and Forensic Medicine, North Sichuan Medical College, Nanchong, Sichuan, China
| | - Jingjia Li
- Academician (Expert) Workstation, Medical Imaging Key Laboratory of Sichuan Province, Biological Targeting Laboratory of Breast Cancer, Department of Breast and Thyroid Surgery, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, China
- Medical Imaging Key Laboratory of Sichuan Province, Institute of Basic Medicine and Forensic Medicine, North Sichuan Medical College, Nanchong, Sichuan, China
| | - Lulan Pu
- Academician (Expert) Workstation, Medical Imaging Key Laboratory of Sichuan Province, Biological Targeting Laboratory of Breast Cancer, Department of Breast and Thyroid Surgery, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, China
- Medical Imaging Key Laboratory of Sichuan Province, Institute of Basic Medicine and Forensic Medicine, North Sichuan Medical College, Nanchong, Sichuan, China
| | - Jinghua Hu
- Academician (Expert) Workstation, Medical Imaging Key Laboratory of Sichuan Province, Biological Targeting Laboratory of Breast Cancer, Department of Breast and Thyroid Surgery, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, China
- Medical Imaging Key Laboratory of Sichuan Province, Institute of Basic Medicine and Forensic Medicine, North Sichuan Medical College, Nanchong, Sichuan, China
| | - Lingyu Fang
- Academician (Expert) Workstation, Medical Imaging Key Laboratory of Sichuan Province, Biological Targeting Laboratory of Breast Cancer, Department of Breast and Thyroid Surgery, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, China
- Medical Imaging Key Laboratory of Sichuan Province, Institute of Basic Medicine and Forensic Medicine, North Sichuan Medical College, Nanchong, Sichuan, China
| | - Fangfang Zhou
- Academician (Expert) Workstation, Medical Imaging Key Laboratory of Sichuan Province, Biological Targeting Laboratory of Breast Cancer, Department of Breast and Thyroid Surgery, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, China
- Medical Imaging Key Laboratory of Sichuan Province, Institute of Basic Medicine and Forensic Medicine, North Sichuan Medical College, Nanchong, Sichuan, China
| | - Hongying Zhang
- The Fifth People's Hospital of Nanchong City, Nanchong, Sichuan, China
| | - Yi Yang
- Academician (Expert) Workstation, Medical Imaging Key Laboratory of Sichuan Province, Biological Targeting Laboratory of Breast Cancer, Department of Breast and Thyroid Surgery, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, China
- Medical Imaging Key Laboratory of Sichuan Province, Institute of Basic Medicine and Forensic Medicine, North Sichuan Medical College, Nanchong, Sichuan, China
| | - Xinxin Rong
- Academician (Expert) Workstation, Medical Imaging Key Laboratory of Sichuan Province, Biological Targeting Laboratory of Breast Cancer, Department of Breast and Thyroid Surgery, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, China
- Medical Imaging Key Laboratory of Sichuan Province, Institute of Basic Medicine and Forensic Medicine, North Sichuan Medical College, Nanchong, Sichuan, China
| | - Shishan Deng
- Academician (Expert) Workstation, Medical Imaging Key Laboratory of Sichuan Province, Biological Targeting Laboratory of Breast Cancer, Department of Breast and Thyroid Surgery, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, China.
- Medical Imaging Key Laboratory of Sichuan Province, Institute of Basic Medicine and Forensic Medicine, North Sichuan Medical College, Nanchong, Sichuan, China.
| | - Lingmi Hou
- Academician (Expert) Workstation, Medical Imaging Key Laboratory of Sichuan Province, Biological Targeting Laboratory of Breast Cancer, Department of Breast and Thyroid Surgery, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, China.
- Medical Imaging Key Laboratory of Sichuan Province, Institute of Basic Medicine and Forensic Medicine, North Sichuan Medical College, Nanchong, Sichuan, China.
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