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Xu Z, Shi Y, Zhu L, Luo J, Hu Q, Jiang S, Xiao M, Jiang X, Wang H, Xu Y, Jin W, Zhou Y, Wang P, Wang K. Novel SERCA2 inhibitor Diphyllin displays anti-tumor effect in non-small cell lung cancer by promoting endoplasmic reticulum stress and mitochondrial dysfunction. Cancer Lett 2024; 598:217075. [PMID: 38909775 DOI: 10.1016/j.canlet.2024.217075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Revised: 06/13/2024] [Accepted: 06/14/2024] [Indexed: 06/25/2024]
Abstract
Abnormal calcium signaling is associated with non-small cell lung cancer (NSCLC) malignant progression, poor survival and chemotherapy resistance. Targeting endoplasmic reticulum (ER) Ca2+ channels or pumps to block calcium uptake in the ER induces ER stress and concomitantly promotes mitochondrial calcium uptake, leading to mitochondrial dysfunction and ultimately inducing cell death. Here, we identified Diphyllin was a potential specific inhibitor of endoplasmic reticulum (ER) calcium-importing protein sarco/endoplasmic-reticulum Ca2+ ATPase 2 (SERCA2). In vitro and in vivo studies showed that Diphyllin increased NSCLC cell apoptosis, along with inhibition of cell proliferation and migration. Mechanistically, Diphyllin promoted ER stress by directly inhibiting SERCA2 activity and decreasing ER Ca2+ levels. At the same time, the accumulated Ca2+ in cytoplasm flowed into mitochondria to increase reactive oxygen species (ROS) and decrease mitochondrial membrane potential (MMP), leading to cytochrome C (Cyto C) release and mitochondrial dysfunction. In addition, we found that Diphyllin combined with cisplatin could have a synergistic anti-tumor effect in vitro and in vivo. Taken together, our results suggested that Diphyllin, as a potential novel inhibitor of SERCA2, exerts anti-tumor effects by blocking ER Ca2+ uptake and thereby promoting ER stress and mitochondrial dysfunction.
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Affiliation(s)
- Zhiyong Xu
- Department of Respiratory and Critical Care Medicine, Center for Oncology Medical, the Fourth Affiliated Hospital of School of Medicine, and International School of Medicine, International Institutes of Medicine, Zhejiang University, Yiwu, 322000, China; Zhejiang Key Laboratory of Precision Diagnosis and Treatment for Lung Cancer, Yiwu, 322000, China
| | - Yueli Shi
- Department of Respiratory and Critical Care Medicine, Center for Oncology Medical, the Fourth Affiliated Hospital of School of Medicine, and International School of Medicine, International Institutes of Medicine, Zhejiang University, Yiwu, 322000, China; Zhejiang Key Laboratory of Precision Diagnosis and Treatment for Lung Cancer, Yiwu, 322000, China
| | - Liang Zhu
- Department of Rheumatology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310000, Zhejiang, China
| | - Jianhua Luo
- Department of Respiratory and Critical Care Medicine, Center for Oncology Medical, the Fourth Affiliated Hospital of School of Medicine, and International School of Medicine, International Institutes of Medicine, Zhejiang University, Yiwu, 322000, China; Zhejiang Key Laboratory of Precision Diagnosis and Treatment for Lung Cancer, Yiwu, 322000, China; Department of Respiratory Medicine, Taizhou Municipal Hospital, Taizhou, 318000, Zhejiang, China
| | - Qiongjie Hu
- Department of Respiratory and Critical Care Medicine, Center for Oncology Medical, the Fourth Affiliated Hospital of School of Medicine, and International School of Medicine, International Institutes of Medicine, Zhejiang University, Yiwu, 322000, China; Zhejiang Key Laboratory of Precision Diagnosis and Treatment for Lung Cancer, Yiwu, 322000, China
| | - Sujing Jiang
- Department of Respiratory and Critical Care Medicine, Center for Oncology Medical, the Fourth Affiliated Hospital of School of Medicine, and International School of Medicine, International Institutes of Medicine, Zhejiang University, Yiwu, 322000, China; Zhejiang Key Laboratory of Precision Diagnosis and Treatment for Lung Cancer, Yiwu, 322000, China
| | - Mingshu Xiao
- Department of Respiratory and Critical Care Medicine, Center for Oncology Medical, the Fourth Affiliated Hospital of School of Medicine, and International School of Medicine, International Institutes of Medicine, Zhejiang University, Yiwu, 322000, China; Zhejiang Key Laboratory of Precision Diagnosis and Treatment for Lung Cancer, Yiwu, 322000, China
| | - Xinyuan Jiang
- Department of Respiratory and Critical Care Medicine, Center for Oncology Medical, the Fourth Affiliated Hospital of School of Medicine, and International School of Medicine, International Institutes of Medicine, Zhejiang University, Yiwu, 322000, China; Zhejiang Key Laboratory of Precision Diagnosis and Treatment for Lung Cancer, Yiwu, 322000, China
| | - Huan Wang
- Department of Respiratory and Critical Care Medicine, Center for Oncology Medical, the Fourth Affiliated Hospital of School of Medicine, and International School of Medicine, International Institutes of Medicine, Zhejiang University, Yiwu, 322000, China; Zhejiang Key Laboratory of Precision Diagnosis and Treatment for Lung Cancer, Yiwu, 322000, China
| | - Yun Xu
- Department of Respiratory and Critical Care Medicine, Center for Oncology Medical, the Fourth Affiliated Hospital of School of Medicine, and International School of Medicine, International Institutes of Medicine, Zhejiang University, Yiwu, 322000, China; Zhejiang Key Laboratory of Precision Diagnosis and Treatment for Lung Cancer, Yiwu, 322000, China
| | - Wei Jin
- Department of Respiratory and Critical Care Medicine, Center for Oncology Medical, the Fourth Affiliated Hospital of School of Medicine, and International School of Medicine, International Institutes of Medicine, Zhejiang University, Yiwu, 322000, China
| | - Yan Zhou
- Department of Respiratory and Critical Care Medicine, Center for Oncology Medical, the Fourth Affiliated Hospital of School of Medicine, and International School of Medicine, International Institutes of Medicine, Zhejiang University, Yiwu, 322000, China; Zhejiang Key Laboratory of Precision Diagnosis and Treatment for Lung Cancer, Yiwu, 322000, China
| | - Pingli Wang
- Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310000, Zhejiang, China
| | - Kai Wang
- Department of Respiratory and Critical Care Medicine, Center for Oncology Medical, the Fourth Affiliated Hospital of School of Medicine, and International School of Medicine, International Institutes of Medicine, Zhejiang University, Yiwu, 322000, China; Zhejiang Key Laboratory of Precision Diagnosis and Treatment for Lung Cancer, Yiwu, 322000, China.
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Mao Z, Hu Y, Zhao Y, Zhang X, Guo L, Wang X, Zhang J, Miao M. The Mutual Regulatory Role of Ferroptosis and Immunotherapy in Anti-tumor Therapy. Apoptosis 2024:10.1007/s10495-024-01988-9. [PMID: 38853203 DOI: 10.1007/s10495-024-01988-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/25/2024] [Indexed: 06/11/2024]
Abstract
Ferroptosis is a form of cell death that is triggered by the presence of ferrous ions and is characterized by lipid peroxidation induced by these ions. The mechanism exhibits distinct morphological characteristics compared to apoptosis, autophagy, and necrosis. A notable aspect of ferroptosis is its ability to inhibit uncontrolled tumor replication and immortalization, especially in malignant, drug-resistant, and metastatic tumors. Additionally, immunotherapy, a novel therapeutic approach for tumors, has been found to have a reciprocal regulatory relationship with ferroptosis in the context of anti-tumor therapy. A comprehensive analysis of ferroptosis and immunotherapy in tumor therapy is presented in this paper, highlighting the potential for mutual adjuvant effects. Specifically, we discuss the mechanisms underlying ferroptosis and immunotherapy, emphasizing their ability to improve the tumor immune microenvironment and enhance immunotherapeutic effects. Furthermore, we investigate how immunotherapeutic factors may increase the sensitivity of tumor cells to ferroptosis. We aim to provide a prospective view of the promising value of combined ferroptosis and immunotherapy in anticancer therapy by elucidating the mutual regulatory network between each.
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Affiliation(s)
- Zhiguo Mao
- Department of Pharmacology, Zhengdong New District, Henan University of Chinese Medicine, No. 156 Jinshui East Road, Zhengzhou, 450046, Henan, China
- Collaborative Innovation Center of Research and Development, Whole Industry Chain of Yu-Yao in Henan Province, Henan, China
| | - Yilong Hu
- Department of Pharmacology, Zhengdong New District, Henan University of Chinese Medicine, No. 156 Jinshui East Road, Zhengzhou, 450046, Henan, China
- Collaborative Innovation Center of Research and Development, Whole Industry Chain of Yu-Yao in Henan Province, Henan, China
| | - Yinan Zhao
- Department of Pharmacology, Zhengdong New District, Henan University of Chinese Medicine, No. 156 Jinshui East Road, Zhengzhou, 450046, Henan, China
- Collaborative Innovation Center of Research and Development, Whole Industry Chain of Yu-Yao in Henan Province, Henan, China
| | - Xiaolei Zhang
- Department of Pharmacology, Zhengdong New District, Henan University of Chinese Medicine, No. 156 Jinshui East Road, Zhengzhou, 450046, Henan, China
- Collaborative Innovation Center of Research and Development, Whole Industry Chain of Yu-Yao in Henan Province, Henan, China
| | - Lin Guo
- Department of Pharmacology, Zhengdong New District, Henan University of Chinese Medicine, No. 156 Jinshui East Road, Zhengzhou, 450046, Henan, China
- Collaborative Innovation Center of Research and Development, Whole Industry Chain of Yu-Yao in Henan Province, Henan, China
| | - Xiaoran Wang
- Department of Pharmacology, Zhengdong New District, Henan University of Chinese Medicine, No. 156 Jinshui East Road, Zhengzhou, 450046, Henan, China
- Collaborative Innovation Center of Research and Development, Whole Industry Chain of Yu-Yao in Henan Province, Henan, China
| | - Jinying Zhang
- Department of Pharmacology, Zhengdong New District, Henan University of Chinese Medicine, No. 156 Jinshui East Road, Zhengzhou, 450046, Henan, China
- Collaborative Innovation Center of Research and Development, Whole Industry Chain of Yu-Yao in Henan Province, Henan, China
| | - Mingsan Miao
- Department of Pharmacology, Zhengdong New District, Henan University of Chinese Medicine, No. 156 Jinshui East Road, Zhengzhou, 450046, Henan, China.
- Collaborative Innovation Center of Research and Development, Whole Industry Chain of Yu-Yao in Henan Province, Henan, China.
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Xie F, Qu J, Lin D, Feng K, Tan M, Liao H, Zeng L, Xiong Q, Huang J, Chen W. Reduced Proteolipid Protein 2 promotes endoplasmic reticulum stress-related apoptosis and increases drug sensitivity in acute myeloid leukemia. Mol Biol Rep 2023; 51:10. [PMID: 38085372 DOI: 10.1007/s11033-023-08994-1] [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: 08/31/2023] [Accepted: 10/30/2023] [Indexed: 12/18/2023]
Abstract
BACKGROUND The Proteolipid Protein 2 (PLP2), a protein in the Endoplasmic Reticulum (ER) membrane, has been reported to be highly expressed in various tumors. Previous studies have demonstrated that the reduced PLP2 can induce apoptosis and autophagy through ER stress-related pathways, leading to a decreased proliferation and aggressiveness. However, there is no research literature on the role of PLP2 in Acute Myeloid Leukemia (AML). METHODS PLP2 expression, clinical data, genetic mutations, and karyotype changes from GEO, TCGA, and timer2.0 databases were analyzed through the R packages. The possible functions and pathways of cells were explored through GO, KEGG, and GSEA enrichment analysis using the clusterProfiler R package. Immuno-infiltration analysis was conducted using the Cibersort algorithm and the Xcell R package. RT-PCR and western blot techniques were employed to identify the PLP2 expression, examine the knockdown effects in THP-1 cells, and assess the expression of genes associated with endoplasmic reticulum stress and apoptosis. Flow cytometry was utilized to determine the apoptosis and survival rates of different groups. RESULTS PLP2 expression was observed in different subsets of AML and other cancers. Enrichment analyses revealed that PLP2 was involved in various tumor-related biological processes, primarily apoptosis and lysosomal functions. Additionally, PLP2 expression showed a strong association with immune cell infiltration, particularly monocytes. In vitro, the knockdown of PLP2 enhanced endoplasmic reticulum stress-related apoptosis and increased drug sensitivity in THP-1 cells. CONCLUSIONS PLP2 could be a novel therapeutic target in AML, in addition, PLP2 is a potential endoplasmic reticulum stress regulatory gene in AML.
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Affiliation(s)
- Fahui Xie
- Department of Clinical Laboratory, Guangzhou Twelfth People's Hospital, Guangzhou Medical University, Guangzhou, China
| | - Jia Qu
- Department of Hematology, Guangzhou Twelfth People's Hospital, Guangzhou Medical University, Guangzhou, China
| | - Dainan Lin
- Department of Hematology, Guangzhou Twelfth People's Hospital, Guangzhou Medical University, Guangzhou, China
| | - Kexin Feng
- Department of Hematology, Guangzhou Twelfth People's Hospital, Guangzhou Medical University, Guangzhou, China
| | - Mingzhu Tan
- Department of Hematology, Guangzhou Twelfth People's Hospital, Guangzhou Medical University, Guangzhou, China
| | - Haixiu Liao
- Department of Clinical Laboratory, Guangzhou Twelfth People's Hospital, Guangzhou Medical University, Guangzhou, China
| | - Longhui Zeng
- Department of Organ Transplantation, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Qingquan Xiong
- Department of Basic Medical Science, Sino-French Hoffmann Institute, Guangzhou Medical University, Guangzhou, China
| | - Jun Huang
- Department of Basic Medical Science, Sino-French Hoffmann Institute, Guangzhou Medical University, Guangzhou, China.
| | - Weiwen Chen
- Department of Clinical Laboratory, Guangzhou Twelfth People's Hospital, Guangzhou Medical University, Guangzhou, China.
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