1
|
Song G, Shang C, Zhu Y, Xiu Z, Li Y, Yang X, Ge C, Han J, Jin N, Li Y, Li X, Fang J. Apoptin Inhibits Glycolysis and Regulates Autophagy by Targeting Pyruvate Kinase M2 (PKM2) in Lung Cancer A549 Cells. Curr Cancer Drug Targets 2024; 24:411-424. [PMID: 36284386 PMCID: PMC10964080 DOI: 10.2174/1568009623666221025150239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Revised: 08/10/2022] [Accepted: 09/22/2022] [Indexed: 11/22/2022]
Abstract
BACKGROUND Pyruvate kinase M2 (PKM2) is a key enzyme in aerobic glycolysis and plays an important role in tumor energy metabolism and tumor growth. Ad-apoptin, a recombinant oncolytic adenovirus, can stably express apoptin in tumor cells and selectively causes cell death in tumor cells. OBJECTIVE The relationship between the anti-tumor function of apoptin, including apoptosis and autophagy activation, and the energy metabolism of tumor cells has not been clarified. METHODS In this study, we used the A549 lung cancer cell line to analyze the mechanism of PKM2 involvement in apoptin-mediated cell death in tumor cells. PKM2 expression in lung cancer cells was detected by Western blot and qRT-PCR. In the PKM2 knockdown and over-expression experiments, A549 lung cancer cells were treated with Ad-apoptin, and cell viability was determined by the CCK-8 assay and crystal violet staining. Glycolysis was investigated using glucose consumption and lactate production experiments. Moreover, the effects of Ad-apoptin on autophagy and apoptosis were analyzed by immunofluorescence using the Annexin v-mCherry staining and by western blot for c-PARP, p62, and LC3-II proteins. Immunoprecipitation analysis was used to investigate the interaction between apoptin and PKM2. In addition, following PKM2 knockdown and overexpression, the expression levels of p-AMPK, p-mTOR, p-ULK1, and p-4E-BP1 proteins in Ad-apoptin treated tumor cells were analyzed by western blot to investigate the mechanism of apoptin effect on the energy metabolism of tumor cells. The in vivo antitumor mechanism of apoptin was analyzed by xenograft tumor inhibition experiment in nude mice and immunohistochemistry of tumors' tissue. RESULTS As a result, apoptin could target PKM2, inhibit glycolysis and cell proliferation in A549 cells, and promote autophagy and apoptosis in A549 cells by regulating the PKM2/AMPK/mTOR pathway. CONCLUSION This study confirmed the necessary role of Ad-apoptin in the energy metabolism of A549 cells.
Collapse
Affiliation(s)
- Gaojie Song
- Medical College, Jiujiang University, Jiujiang, 332000, China
- Changchun Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Changchun, 130117, China
- Academician Workstation of Jilin Province, Changchun University of Chinese Medicine, Changchun, 130122, China
| | - Chao Shang
- Changchun Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Changchun, 130117, China
| | - Yilong Zhu
- Academician Workstation of Jilin Province, Changchun University of Chinese Medicine, Changchun, 130122, China
| | - Zhiru Xiu
- Academician Workstation of Jilin Province, Changchun University of Chinese Medicine, Changchun, 130122, China
| | - Yaru Li
- Academician Workstation of Jilin Province, Changchun University of Chinese Medicine, Changchun, 130122, China
| | - Xia Yang
- Academician Workstation of Jilin Province, Changchun University of Chinese Medicine, Changchun, 130122, China
| | - Chenchen Ge
- Academician Workstation of Jilin Province, Changchun University of Chinese Medicine, Changchun, 130122, China
| | - Jicheng Han
- Academician Workstation of Jilin Province, Changchun University of Chinese Medicine, Changchun, 130122, China
| | - Ningyi Jin
- Changchun Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Changchun, 130117, China
- Academician Workstation of Jilin Province, Changchun University of Chinese Medicine, Changchun, 130122, China
| | - Yiquan Li
- Academician Workstation of Jilin Province, Changchun University of Chinese Medicine, Changchun, 130122, China
| | - Xiao Li
- Changchun Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Changchun, 130117, China
- Academician Workstation of Jilin Province, Changchun University of Chinese Medicine, Changchun, 130122, China
| | - Jinbo Fang
- Academician Workstation of Jilin Province, Changchun University of Chinese Medicine, Changchun, 130122, China
| |
Collapse
|
2
|
Wang J, Zuo S, Zhang Y, Li S, Shi Y, Du T, Han J, Jin N, Li Y, Li X. Recombinant Oncolytic Adenovirus Combined with Cyclophosphamide Induces Synergy in the Treatment of Breast Cancer in vitro and in vivo. Cancer Manag Res 2022; 14:2749-2761. [PMID: 36133740 PMCID: PMC9484773 DOI: 10.2147/cmar.s373271] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Accepted: 09/08/2022] [Indexed: 12/05/2022] Open
Abstract
Purpose Oncolytic virus therapy has gradually become an integral approach in cancer treatment. We explored the therapeutic effects of the combination of a dual cancer-selective anti-tumor recombinant adenovirus (Ad-Apoptin-hTERTp-E1a) and cyclophosphamide on breast cancer cells. Methods The inhibition of MCF-7 and MDA-MB-231 breast cancer cells by Ad-Apoptin-hTERTp-E1a (Ad-VT), cyclophosphamide, and Ad-VT + Cyclophosphamide was investigated using the CCK-8 assay. The combination index (CI) was calculated using CalcuSyn software to determine the best combination based on the inhibition rates of the different treatment combinations. The CCK-8 assay and crystal violet staining were used to detect the cytotoxicity of the combined Ad-VT and cyclophosphamide in breast cancer cells and breast epithelial cells. Subsequently, Hoechst staining, annexin V flow cytometry, and JC-1 staining were used to analyze the inhibitory pathway of Ad-VT plus cyclophosphamide on breast cancer cells. Cell migration and invasion of breast cancer cells were assessed using the cell-scratch and Transwell assays. The anti-tumor effects of different treatment groups in a tumor-bearing nude mouse model also were analyzed. Results The treatment combination of Ad-VT (40 MOI) and cyclophosphamide (400 µM) significantly inhibited MCF-7 and MDA-MB-231 cells and reduced the toxicity of cyclophosphamide in normal cells. Ad-VT primarily induced breast cancer cell apoptosis through the endogenous apoptotic pathway. Apoptosis was significantly increased after treatment with Ad-VT plus cyclophosphamide. The combination significantly inhibited the migration and invasion of MCF-7 and MDA-MB-231 cells. The in vivo experiments demonstrated that exposure to Ad-VT plus cyclophosphamide significantly inhibited tumor growth and extended the survival time of the nude mice. Conclusion Ad-VT plus cyclophosphamide reduced toxicity and exhibited increased efficacy in treating breast cancer cells.
Collapse
Affiliation(s)
- Jing Wang
- Department of Breast Surgery, The Second Hospital of Jilin University, Changchun, 130000, People's Republic of China
| | - Shuting Zuo
- Department of Breast Surgery, The Second Hospital of Jilin University, Changchun, 130000, People's Republic of China
| | - Yan Zhang
- Department of Breast Surgery, The Second Hospital of Jilin University, Changchun, 130000, People's Republic of China
| | - Shanzhi Li
- Academician Workstation of Jilin Province, Changchun University of Chinese Medicine, Changchun, 130117, People's Republic of China
| | - Ying Shi
- Department of Breast Surgery, The Second Hospital of Jilin University, Changchun, 130000, People's Republic of China
| | - Tonghua Du
- Department of Breast Surgery, The Second Hospital of Jilin University, Changchun, 130000, People's Republic of China
| | - Jicheng Han
- Academician Workstation of Jilin Province, Changchun University of Chinese Medicine, Changchun, 130117, People's Republic of China
| | - Ningyi Jin
- Academician Workstation of Jilin Province, Changchun University of Chinese Medicine, Changchun, 130117, People's Republic of China.,Changchun Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Changchun, 130122, People's Republic of China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, 225009, People's Republic of China
| | - Yiquan Li
- Academician Workstation of Jilin Province, Changchun University of Chinese Medicine, Changchun, 130117, People's Republic of China
| | - Xiao Li
- Academician Workstation of Jilin Province, Changchun University of Chinese Medicine, Changchun, 130117, People's Republic of China.,Changchun Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Changchun, 130122, People's Republic of China
| |
Collapse
|
3
|
Song G, Fang J, Shang C, Li Y, Zhu Y, Xiu Z, Sun L, Jin N, Li X. Ad-apoptin inhibits glycolysis, migration and invasion in lung cancer cells targeting AMPK/mTOR signaling pathway. Exp Cell Res 2021; 409:112926. [PMID: 34793774 DOI: 10.1016/j.yexcr.2021.112926] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 11/12/2021] [Accepted: 11/13/2021] [Indexed: 12/13/2022]
Abstract
Ad-apoptin is a recombinant oncolytic adenovirus constructed by our laboratory that can express apoptin. It can selectively kill tumor cells without damaging normal cells. This study investigated the effects of Ad-apoptin on glycolysis, migration and invasion of non-small cell lung cancer. Cell viability and apoptosis were detected by CCK-8 and flow cytometry, respectively. Glycolysis was investigated by glucose consumption, lactic acid production and glycolytic key enzyme protein levels. Migration and invasion were evaluated via wound healing, transwell assays and epithelial-mesenchymal transition (EMT) protein levels. The interaction between apoptin and AMPK was detected by Co-IP. A nude mice tumor model was established to investigate the anti-cancer role of Ad-apoptin in vivo. The results showed that Ad-apoptin inhibits cell viability and induces apoptosis of A549 and NCI-H23 cells. Ad-apoptin can reduce the glucose uptake and lactic production in lung cancer cells, and reduce the expression of related glycolysis-limiting enzymes. At the same time, Ad-apoptin inhibited the migration and invasion of lung cancer. Immunoprecipitation showed that apoptin and AMPK could interact directly. Moreover, knockdown of AMPK significantly attenuated the inhibitory effect of Ad-apoptin on glycolysis, migration and invasion of A549 and NCI-H23 cells. Ad-apoptin can inhibit the growth of tumors in nude mice. Compared with the control group, Ad-apoptin had a significant inhibitory effect on AMPK knockdown tumors. The immunohistochemical results of tumor tissues were consistent with those in vitro. Collectively, Ad-apoptin targets AMPK and inhibits glycolysis, migration and invasion of lung cancer cells through the AMPK/mTOR signaling pathway. This suggests that Ad-apoptin may have therapeutic potential for lung cancer by targeting AMPK activation.
Collapse
Affiliation(s)
- Gaojie Song
- Medical College, Yanbian University, Yanji, China; Changchun Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Changchun, China; Academician Workstation of Jilin Province, Changchun University of Chinese Medicine, Changchun, China
| | - Jinbo Fang
- Academician Workstation of Jilin Province, Changchun University of Chinese Medicine, Changchun, China
| | - Chao Shang
- Changchun Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Changchun, China
| | - Yiquan Li
- Academician Workstation of Jilin Province, Changchun University of Chinese Medicine, Changchun, China
| | - Yilong Zhu
- Academician Workstation of Jilin Province, Changchun University of Chinese Medicine, Changchun, China
| | - Zhiru Xiu
- Academician Workstation of Jilin Province, Changchun University of Chinese Medicine, Changchun, China
| | - Lili Sun
- Changchun Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Changchun, China; Department of Head and Neck Surgery, Tumor Hospital of Jilin Province, Changchun, China.
| | - Ningyi Jin
- Medical College, Yanbian University, Yanji, China; Changchun Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Changchun, China; Academician Workstation of Jilin Province, Changchun University of Chinese Medicine, Changchun, China.
| | - Xiao Li
- Changchun Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Changchun, China; Academician Workstation of Jilin Province, Changchun University of Chinese Medicine, Changchun, China.
| |
Collapse
|
4
|
Spiesschaert B, Angerer K, Park J, Wollmann G. Combining Oncolytic Viruses and Small Molecule Therapeutics: Mutual Benefits. Cancers (Basel) 2021; 13:3386. [PMID: 34298601 PMCID: PMC8306439 DOI: 10.3390/cancers13143386] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2021] [Revised: 06/28/2021] [Accepted: 07/01/2021] [Indexed: 02/07/2023] Open
Abstract
The focus of treating cancer with oncolytic viruses (OVs) has increasingly shifted towards achieving efficacy through the induction and augmentation of an antitumor immune response. However, innate antiviral responses can limit the activity of many OVs within the tumor and several immunosuppressive factors can hamper any subsequent antitumor immune responses. In recent decades, numerous small molecule compounds that either inhibit the immunosuppressive features of tumor cells or antagonize antiviral immunity have been developed and tested for. Here we comprehensively review small molecule compounds that can achieve therapeutic synergy with OVs. We also elaborate on the mechanisms by which these treatments elicit anti-tumor effects as monotherapies and how these complement OV treatment.
Collapse
Affiliation(s)
- Bart Spiesschaert
- Christian Doppler Laboratory for Viral Immunotherapy of Cancer, Medical University Innsbruck, 6020 Innsbruck, Austria; (B.S.); (K.A.)
- Institute of Virology, Medical University Innsbruck, 6020 Innsbruck, Austria
- ViraTherapeutics GmbH, 6063 Rum, Austria
- Boehringer Ingelheim Pharma GmbH & Co. KG, 88397 Biberach a.d. Riss, Germany;
| | - Katharina Angerer
- Christian Doppler Laboratory for Viral Immunotherapy of Cancer, Medical University Innsbruck, 6020 Innsbruck, Austria; (B.S.); (K.A.)
- Institute of Virology, Medical University Innsbruck, 6020 Innsbruck, Austria
| | - John Park
- Boehringer Ingelheim Pharma GmbH & Co. KG, 88397 Biberach a.d. Riss, Germany;
| | - Guido Wollmann
- Christian Doppler Laboratory for Viral Immunotherapy of Cancer, Medical University Innsbruck, 6020 Innsbruck, Austria; (B.S.); (K.A.)
- Institute of Virology, Medical University Innsbruck, 6020 Innsbruck, Austria
| |
Collapse
|