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Du L, Xu G, Zhang X, Zhang Z, Yang Y, Teng H, Yang T. AQP4-AS1 Can Regulate the Expression of Ferroptosis-Related Regulator ALOX15 through Competitive Binding with miR-4476 in Lung Adenocarcinoma. Glob Med Genet 2024; 11:241-250. [PMID: 39155888 PMCID: PMC11329318 DOI: 10.1055/s-0044-1789199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/20/2024] Open
Abstract
Background The AQP4-AS1/miR-4476-ALOX15 regulatory axis was discovered in previous studies. We aimed to investigate the regulatory mechanism of the ferroptosis-related regulator ALOX15 by AQP4-AS1 and miR-4476 in lung adenocarcinoma (LUAD) and find new targets for clinical treatment. Methods After bioinformatics analysis, we contained one ferroptosis-related gene (FRG), namely ALOX15. MicroRNAs (miRNAs) and long noncoding RNAs were predicted by miRWalk. Furthermore, we constructed overexpressed LUAD cell lines. Real-time quantitative polymerase chain reaction and western blot were used to determine the expression of mRNA and protein, respectively. Cell Counting Kit-8 (CCK-8) and EdU assay were used to detect the cell proliferation. Double luciferase assay was used to detect the binding relationship between AQP4-AS1 and miR-4464. Results ALOX15 was the most significantly downregulated FRG compared with normal tissues. Furthermore, protein-protein interaction network analysis indicated that the AQP4-AS1-miR-4476-ALOX15 regulatory axis might be involved in the occurrence and development of LUAD and there might be direct interaction between AQP4-AS1 and miR-4476, and miR-4476 and ALOX15. Furthermore, AQP4-AS1 and ALOX15 were significantly downregulated in the LUAD tissue and cell lines, whereas miR-4476 showed the opposite results ( p < 0.001). AQP4-AS1 overexpression improved the ALOX15 expression in LUAD cell lines. CCK-8 and EdU assay revealed that overexpression of AQP4-AS1 and ALOX15 inhibited the LUAD cell proliferation. Double luciferase assay results indicated that there was a combination between AQP4-AS1 and miRNA-4476. In addition, we found that overexpressed AQP4-AS1 activates the ferroptosis in LUAD cell lines. Conclusions AQP4-AS1 can regulate the expression of ALOX15 through competitive binding with miR-4476, further activate ferroptosis and inhibit the proliferation of LUAD cells.
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Affiliation(s)
- Lin Du
- Department of Thoracic Surgery, Tianjin Fifth Center Hospital, Tianjin, China
| | - Geng Xu
- Department of Thoracic Surgery, Tianjin Fifth Center Hospital, Tianjin, China
| | - Xiuqiang Zhang
- Department of Thoracic Surgery, Tianjin Fifth Center Hospital, Tianjin, China
| | - Zhiwei Zhang
- Department of Thoracic Surgery, Tianjin Fifth Center Hospital, Tianjin, China
| | - Yang Yang
- Department of Thoracic Surgery, Tianjin Fifth Center Hospital, Tianjin, China
| | - Hongsheng Teng
- Department of Thoracic Surgery, Tianjin Fifth Center Hospital, Tianjin, China
| | - Tao Yang
- Department of Thoracic Surgery, Tianjin Fifth Center Hospital, Tianjin, China
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Lu H, Kong J, Cai S, Huang H, Luo J, Liu L. Hsa_circ_0096157 silencing suppresses autophagy and reduces cisplatin resistance in non-small cell lung cancer by weakening the Nrf2/ARE signaling pathway. Mol Biol Rep 2024; 51:703. [PMID: 38822881 DOI: 10.1007/s11033-024-09552-z] [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: 09/08/2023] [Accepted: 04/15/2024] [Indexed: 06/03/2024]
Abstract
BACKGROUND Non-small cell lung cancer (NSCLC) is the leading cause of cancer morbidity and mortality worldwide, and new diagnostic markers are urgently needed. We aimed to investigate the mechanism by which hsa_circ_0096157 regulates autophagy and cisplatin (DDP) resistance in NSCLC. METHODS A549 cells were treated with DDP (0 μg/mL or 3 μg/mL). Then, the autophagy activator rapamycin (200 nm) was applied to the A549/DDP cells. Moreover, hsa_circ_0096157 and Nrf2 were knocked down, and Nrf2 was overexpressed in A549/DDP cells. The expression of Hsa_circ_0096157, the Nrf2/ARE pathway-related factors Nrf2, HO-1, and NQO1, and the autophagy-related factors LC3, Beclin-1, and p62 was evaluated by qRT‒PCR or western blotting. Autophagosomes were detected through TEM. An MTS assay was utilized to measure cell proliferation. The associated miRNA levels were also tested by qRT‒PCR. RESULTS DDP (3 μg/mL) promoted hsa_circ_0096157, LC3 II/I, and Beclin-1 expression and decreased p62 expression. Knocking down hsa_circ_0096157 resulted in the downregulation of LC3 II/I and Beclin-1 expression, upregulation of p62 expression, and decreased proliferation. Rapamycin reversed the effect of interfering with hsa_circ_0096157. Keap1 expression was lower, and Nrf2, HO-1, and NQO1 expression was greater in the A549/DDP group than in the A549 group. HO-1 expression was repressed after Nrf2 interference. In addition, activation of the Nrf2/ARE pathway promoted autophagy in A549/DDP cells. Moreover, hsa_circ_0096157 activated the Nrf2/ARE pathway. The silencing of hsa_circ_0096157 reduced Nrf2 expression by releasing miR-142-5p or miR-548n. Finally, we found that hsa_circ_0096157 promoted A549/DDP cell autophagy by activating the Nrf2/ARE pathway. CONCLUSION Knockdown of hsa_circ_0096157 inhibits autophagy and DDP resistance in NSCLC cells by downregulating the Nrf2/ARE signaling pathway.
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Affiliation(s)
- Huasong Lu
- Department of Pulmonary and Critical Care Medicine, the First Affiliated Hospital of Guangxi Medical University, No. 6, Shuangyong Road, Nanning, 530021, People's Republic of China
| | - Jinliang Kong
- Department of Pulmonary and Critical Care Medicine, the First Affiliated Hospital of Guangxi Medical University, No. 6, Shuangyong Road, Nanning, 530021, People's Republic of China
| | - Shuangqi Cai
- Department of Pulmonary and Critical Care Medicine, the First Affiliated Hospital of Guangxi Medical University, No. 6, Shuangyong Road, Nanning, 530021, People's Republic of China
| | - Hong Huang
- Department of Pulmonary and Critical Care Medicine, the First Affiliated Hospital of Guangxi Medical University, No. 6, Shuangyong Road, Nanning, 530021, People's Republic of China
| | - Jing Luo
- Department of Pulmonary and Critical Care Medicine, the First Affiliated Hospital of Guangxi Medical University, No. 6, Shuangyong Road, Nanning, 530021, People's Republic of China
| | - Lihua Liu
- Department of Pulmonary and Critical Care Medicine, the First Affiliated Hospital of Guangxi Medical University, No. 6, Shuangyong Road, Nanning, 530021, People's Republic of China.
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Zhang B, Yang M, Zhang W, Liu N, Wang D, Jing L, Xu N, Yang N, Ren T. Chimeric antigen receptor-based natural killer cell immunotherapy in cancer: from bench to bedside. Cell Death Dis 2024; 15:50. [PMID: 38221520 PMCID: PMC10788349 DOI: 10.1038/s41419-024-06438-7] [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: 09/11/2023] [Revised: 12/21/2023] [Accepted: 01/04/2024] [Indexed: 01/16/2024]
Abstract
Immunotherapy has rapidly evolved in the past decades in the battle against cancer. Chimeric antigen receptor (CAR)-engineered T cells have demonstrated significant success in certain hematologic malignancies, although they still face certain limitations, including high costs and toxic effects. Natural killer cells (NK cells), as a vital component of the immune system, serve as the "first responders" in the context of cancer development. In this literature review, we provide an updated understanding of NK cell development, functions, and their applications in disease therapy. Furthermore, we explore the rationale for utilizing engineered NK cell therapies, such as CAR-NK cells, and discuss the differences between CAR-T and CAR-NK cells. We also provide insights into the key elements and strategies involved in CAR design for engineered NK cells. In addition, we highlight the challenges currently encountered and discuss the future directions in NK cell research and utilization, including pre-clinical investigations and ongoing clinical trials. Based on the outstanding antitumor potential of NK cells, it is highly likely that they will lead to groundbreaking advancements in cancer treatment in the future.
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Affiliation(s)
- Beibei Zhang
- Institute of Biomedical Research, Yunnan University, Kunming, 650500, China.
| | - Mengzhe Yang
- Graduate School of Capital Medical University, Beijing, 100069, China
| | - Weiming Zhang
- Department of Oncology, Wuming Hospital of Guangxi Medical University, Nanning, 530199, China
| | - Ning Liu
- Department of Hematology, Huazhong University of Science and Technology Union Shenzhen Hospital, Shenzhen, 518052, China
| | - Daogang Wang
- Department of Gastroenterology, The First Affiliated Hospital of Guangxi University of Chinese Medicine, Nanning, 530000, China
| | - Liangfang Jing
- Department of Neonatology, Women and Children's Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530005, China
| | - Ning Xu
- Department of Clinical Medicine, The Fifth Affiliated Hospital of Guangxi Medical University, Nanning, 530000, China
| | - Na Yang
- Department of Ultrasound, The Second Affiliated Hospital of Kunming Medical University, Yunnan, 650101, China.
| | - Tao Ren
- Department of Oncology, The Fifth Affiliated Hospital of Guangxi Medical University, Nanning, 530000, China.
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Stanley R, Flanagan S, Reilly DO, Kearney E, Naidoo J, Dowling CM. Immunotherapy through the Lens of Non-Small Cell Lung Cancer. Cancers (Basel) 2023; 15:cancers15112996. [PMID: 37296957 DOI: 10.3390/cancers15112996] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 05/24/2023] [Accepted: 05/28/2023] [Indexed: 06/12/2023] Open
Abstract
Immunotherapy has revolutionised anti-cancer treatment in solid organ malignancies. Specifically, the discovery of CTLA-4 followed by PD-1 in the early 2000s led to the practice-changing clinical development of immune checkpoint inhibitors (ICI). Patients with lung cancer, including both small cell (SCLC) and non-small cell lung cancer (NSCLC), benefit from the most commonly used form of immunotherapy in immune checkpoint inhibitors (ICI), resulting in increased survival and quality of life. In NSCLC, the benefit of ICIs has now extended from advanced NSCLC to earlier stages of disease, resulting in durable benefits and the even the emergence of the word 'cure' in long term responders. However, not all patients respond to immunotherapy, and few patients achieve long-term survival. Patients may also develop immune-related toxicity, a small percentage of which is associated with significant mortality and morbidity. This review article highlights the various types of immunotherapeutic strategies, their modes of action, and the practice-changing clinical trials that have led to the widespread use of immunotherapy, with a focus on ICIs in NSCLC and the current challenges associated with advancing the field of immunotherapy.
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Affiliation(s)
- Robyn Stanley
- School of Medicine, University of Limerick, V94 T9PX Limerick, Ireland
| | - Saoirse Flanagan
- School of Medicine, University of Limerick, V94 T9PX Limerick, Ireland
| | | | - Ella Kearney
- School of Medicine, University of Limerick, V94 T9PX Limerick, Ireland
| | - Jarushka Naidoo
- Beaumont Hospital, D09 V2N0 Dublin, Ireland
- Department of Medicine, Royal College of Surgeons in Ireland, D02 YN77 Dublin, Ireland
- Sidney Kimmel Comprehensive Cancer Centre, Johns Hopkins University, Baltimore, MD 21218, USA
| | - Catríona M Dowling
- School of Medicine, University of Limerick, V94 T9PX Limerick, Ireland
- Department of Medicine, Royal College of Surgeons in Ireland, D02 YN77 Dublin, Ireland
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Yang K, Zhao Y, Sun G, Zhang X, Cao J, Shao M, Liang X, Wang L. Clinical application and prospect of immune checkpoint inhibitors for CAR-NK cell in tumor immunotherapy. Front Immunol 2023; 13:1081546. [PMID: 36741400 PMCID: PMC9892943 DOI: 10.3389/fimmu.2022.1081546] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Accepted: 12/20/2022] [Indexed: 01/20/2023] Open
Abstract
Chimeric antigen receptor (CAR) engineering of natural killer (NK) cells is an attractive research field in tumor immunotherapy. While CAR is genetically engineered to express certain molecules, it retains the intrinsic ability to recognize tumor cells through its own receptors. Additionally, NK cells do not depend on T cell receptors for cytotoxic killing. CAR-NK cells exhibit some differences to CAR-T cells in terms of more precise killing, numerous cell sources, and increased effectiveness in solid tumors. However, some problems still exist with CAR-NK cell therapy, such as cytotoxicity, low transfection efficiency, and storage issues. Immune checkpoints inhibit immune cells from performing their normal killing function, and the clinical application of immune checkpoint inhibitors for cancer treatment has become a key therapeutic strategy. The application of CAR-T cells and immune checkpoint inhibitors is being evaluated in numerous ongoing basic research and clinical studies. Immune checkpoints may affect the function of CAR-NK cell therapy. In this review, we describe the combination of existing CAR-NK cell technology with immune checkpoint therapy and discuss the research of CAR-NK cell technology and future clinical treatments. We also summarize the progress of clinical trials of CAR-NK cells and immune checkpoint therapy.
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Affiliation(s)
- Kangdi Yang
- Department of Traditional Chinese Medicine, Changhai Hospital, Naval Medical University, Shanghai, China
| | - Yuze Zhao
- School of Basic Medicine, Naval Medical University, Shanghai, China
| | - Guanqun Sun
- Clinical Cancer Institute, Center for Translational Medicine, Naval Medical University, Shanghai, China
| | - Xu Zhang
- Department of Traditional Chinese Medicine, Changhai Hospital, Naval Medical University, Shanghai, China
| | - Jinjin Cao
- Clinical Cancer Institute, Center for Translational Medicine, Naval Medical University, Shanghai, China
| | - Mingcong Shao
- Department of Traditional Chinese Medicine, Changhai Hospital, Naval Medical University, Shanghai, China
| | - Xijun Liang
- Clinical Cancer Institute, Center for Translational Medicine, Naval Medical University, Shanghai, China,*Correspondence: Xijun Liang, ; Lina Wang,
| | - Lina Wang
- Department of Traditional Chinese Medicine, Changhai Hospital, Naval Medical University, Shanghai, China,*Correspondence: Xijun Liang, ; Lina Wang,
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