1
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Zhu C, Chen Z, Wang S, Cao J, Cheng Y, Zheng M. Single-cell analyzing of tumor microenvironment and cell adhesion between early and late-stage lung cancer. Mol Immunol 2024; 171:1-11. [PMID: 38696904 DOI: 10.1016/j.molimm.2024.04.013] [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: 01/09/2024] [Revised: 04/14/2024] [Accepted: 04/24/2024] [Indexed: 05/04/2024]
Abstract
Lung adenocarcinoma (LUAD) is a highly heterogeneous disease that threaten human life with serious incidence and high mortality. High heterogeneity of tumor microenvironment (TME) was reported in multiple studies. However, the factor of controlling the tumor migration progression between eary and late-stage LUAD is still not fully understood. In this study, we conducted a comprehensive analysis of single-cell RNA sequencing (scRNA-seq) data of LUAD obtained from the GEO database. The identification of cell clusters revealed significant expansion of epithelial cells in late-stage patients. Interpretation of the cell-cell communication results between early-stage and late-stage patient samples indicated that early tumor cells may interact with epithelial cells through the TGF-β pathway to promote tumor progression. The cell cycle analysis demonstrated a significant increase in the number of cells in the G2 and M phases in late-stage lung cancer. Further analysis using Non-negative Matrix Factorization (NMF) revealed early-stage cell-specific gene features involved in cell adhesion-related biological processes. Among these, the Tensin (TNS) gene family, particularly TNS1, showed high expression in epithelial cells and fibroblasts of early-stage samples, specifically associated with cell adhesion. Survival analysis using TCGA database for LUAD demonstrated that patients with high expression of TNS1 exhibited significantly higher overall survival rates compared to those with low expression. Immunofluorescence experiments have demonstrated co-expression of TNS1 with fibroblast and tumor cell markers (α-SMA and EPCAM). Immunohistochemistry experiments further validated the significantly higher expression levels of TNS1 in early-stage LUAD tissues compared to late-stage lung cancer tissues (P<0.05). Pathway experiments have shown that early-stage tumor patients with high expression of TNS1 exhibit stronger phosphorylation levels of Akt and mTOR, indicating a more potent activation of the Akt/mTOR signaling pathway. In conclusion, the results of this study demonstrate that TNS1 is an adhesive molecule in the immune microenvironment of early-stage tumor cells, and it may serve as a novel prognostic marker for lug cancer.
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Affiliation(s)
- Chaonan Zhu
- Department of Thoracic Surgery, North China University of Science and Technology Affiliated Hospital, Tangshan, Hebei 063000, China.
| | - Zhiquan Chen
- Department of Thoracic Surgery, North China University of Science and Technology Affiliated Hospital, Tangshan, Hebei 063000, China
| | - Shuai Wang
- Department of Thoracic Surgery, North China University of Science and Technology Affiliated Hospital, Tangshan, Hebei 063000, China
| | - Junmei Cao
- Department of Thoracic Surgery, North China University of Science and Technology Affiliated Hospital, Tangshan, Hebei 063000, China
| | - Yuan Cheng
- Department of Thoracic Surgery, North China University of Science and Technology Affiliated Hospital, Tangshan, Hebei 063000, China
| | - Maogen Zheng
- Department of Thoracic Surgery, North China University of Science and Technology Affiliated Hospital, Tangshan, Hebei 063000, China
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2
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Reina C, Šabanović B, Lazzari C, Gregorc V, Heeschen C. Unlocking the future of cancer diagnosis - promises and challenges of ctDNA-based liquid biopsies in non-small cell lung cancer. Transl Res 2024; 272:41-53. [PMID: 38838851 DOI: 10.1016/j.trsl.2024.05.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/09/2024] [Revised: 04/29/2024] [Accepted: 05/30/2024] [Indexed: 06/07/2024]
Abstract
The advent of liquid biopsies has brought significant changes to the diagnosis and monitoring of non-small cell lung cancer (NSCLC), presenting both promise and challenges. Molecularly targeted drugs, capable of enhancing survival rates, are now available to around a quarter of NSCLC patients. However, to ensure their effectiveness, precision diagnosis is essential. Circulating tumor DNA (ctDNA) analysis as the most advanced liquid biopsy modality to date offers a non-invasive method for tracking genomic changes in NSCLC. The potential of ctDNA is particularly rooted in its ability to furnish comprehensive (epi-)genetic insights into the tumor, thereby aiding personalized treatment strategies. One of the key advantages of ctDNA-based liquid biopsies in NSCLC is their ability to capture tumor heterogeneity. This capability ensures a more precise depiction of the tumor's (epi-)genomic landscape compared to conventional tissue biopsies. Consequently, it facilitates the identification of (epi-)genetic alterations, enabling informed treatment decisions, disease progression monitoring, and early detection of resistance-causing mutations for timely therapeutic interventions. Here we review the current state-of-the-art in ctDNA-based liquid biopsy technologies for NSCLC, exploring their potential to revolutionize clinical practice. Key advancements in ctDNA detection methods, including PCR-based assays, next-generation sequencing (NGS), and digital PCR (dPCR), are discussed, along with their respective strengths and limitations. Additionally, the clinical utility of ctDNA analysis in guiding treatment decisions, monitoring treatment response, detecting minimal residual disease, and identifying emerging resistance mechanisms is examined. Liquid biopsy analysis bears the potential of transforming NSCLC management by enabling non-invasive monitoring of Minimal Residual Disease and providing early indicators for response to targeted treatments including immunotherapy. Furthermore, considerations regarding sample collection, processing, and data interpretation are highlighted as crucial factors influencing the reliability and reproducibility of ctDNA-based assays. Addressing these challenges will be essential for the widespread adoption of ctDNA-based liquid biopsies in routine clinical practice, ultimately paving the way toward personalized medicine and improved outcomes for patients with NSCLC.
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Affiliation(s)
- Chiara Reina
- Pancreatic Cancer Heterogeneity, Candiolo Cancer Institute FPO-IRCCS, Candiolo, Turin, Italy
| | - Berina Šabanović
- Pancreatic Cancer Heterogeneity, Candiolo Cancer Institute FPO-IRCCS, Candiolo, Turin, Italy
| | - Chiara Lazzari
- Department of Medical Oncology, Cancer Institute FPO-IRCCS, Candiolo, Turin, Italy
| | - Vanesa Gregorc
- Department of Medical Oncology, Cancer Institute FPO-IRCCS, Candiolo, Turin, Italy
| | - Christopher Heeschen
- Pancreatic Cancer Heterogeneity, Candiolo Cancer Institute FPO-IRCCS, Candiolo, Turin, Italy;.
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3
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Yuan F, Hu Y, Xu F, Feng X. A review of obstructive sleep apnea and lung cancer: epidemiology, pathogenesis, and therapeutic options. Front Immunol 2024; 15:1374236. [PMID: 38605948 PMCID: PMC11007033 DOI: 10.3389/fimmu.2024.1374236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2024] [Accepted: 03/12/2024] [Indexed: 04/13/2024] Open
Abstract
Despite undeniable advances in modern medicine, lung cancer still has high morbidity and mortality rates. Lung cancer is preventable and treatable, and it is important to identify new risk factors for lung cancer, especially those that can be treated or reversed. Obstructive sleep apnea (OSA) is a very common sleep-breathing disorder that is grossly underestimated in clinical practice. It can cause, exacerbate, and worsen adverse outcomes, including death and various diseases, but its relationship with lung cancer is unclear. A possible causal relationship between OSA and the onset and progression of lung cancer has been established biologically. The pathophysiological processes associated with OSA, such as sleep fragmentation, intermittent hypoxia, and increased sympathetic nervous excitation, may affect normal neuroendocrine regulation, impair immune function (especially innate and cellular immunity), and ultimately contribute to the occurrence of lung cancer, accelerate progression, and induce treatment resistance. OSA may be a contributor to but a preventable cause of the progression of lung cancer. However, whether this effect exists independently of other risk factors is unclear. Therefore, by reviewing the literature on the epidemiology, pathogenesis, and treatment of lung cancer and OSA, we hope to understand the relationships between the two and promote the interdisciplinary exchange of ideas between basic medicine, clinical medicine, respiratory medicine, sleep medicine, and oncology.
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Affiliation(s)
- Fang Yuan
- Department of Respiratory, The First Hospital of Jiujiang City, Jiujiang, China
| | - Yanxia Hu
- Department of Respiratory, The First Hospital of Jiujiang City, Jiujiang, China
| | - Fei Xu
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, China
| | - Xujun Feng
- Department of Respiratory, The First Hospital of Jiujiang City, Jiujiang, China
- Department of Respiratory and Critical Care Medicine, Sleep Medicine Center, Mental Health Center, West China Hospital, Sichuan University, Chengdu, China
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4
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Ding G, Yu H, Jin J, Qiao X, Ma J, Zhang T, Cheng X. Reciprocal relationship between cancer stem cells and myeloid-derived suppressor cells: implications for tumor progression and therapeutic strategies. Future Oncol 2024; 20:215-228. [PMID: 38390682 DOI: 10.2217/fon-2023-0907] [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] [Indexed: 02/24/2024] Open
Abstract
Recently, there has been an increased focus on cancer stem cells (CSCs) due to their resilience, making them difficult to eradicate. This resilience often leads to tumor recurrence and metastasis. CSCs adeptly manipulate their surroundings to create an environment conducive to their survival. In this environment, myeloid-derived suppressor cells (MDSCs) play a crucial role in promoting epithelial-mesenchymal transition and bolstering CSCs' stemness. In response, CSCs attract MDSCs, enhancing their infiltration, expansion and immunosuppressive capabilities. This interaction between CSCs and MDSCs increases the difficulty of antitumor therapy. In this paper, we discuss the interplay between CSCs and MDSCs based on current research and highlight recent therapeutic strategies targeting either CSCs or MDSCs that show promise in achieving effective antitumor outcomes.
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Affiliation(s)
- Guiqing Ding
- Institute of Clinical Immunology, Yue-yang Hospital of Integrative Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 200437, China
| | - Hua Yu
- Institute of Clinical Immunology, Yue-yang Hospital of Integrative Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 200437, China
| | - Jason Jin
- Institute of Clinical Immunology, Yue-yang Hospital of Integrative Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 200437, China
| | - Xi Qiao
- Institute of Clinical Immunology, Yue-yang Hospital of Integrative Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 200437, China
| | - Jinyun Ma
- Institute of Clinical Immunology, Yue-yang Hospital of Integrative Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 200437, China
| | - Tong Zhang
- Institute of Clinical Immunology, Yue-yang Hospital of Integrative Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 200437, China
| | - Xiaodong Cheng
- Institute of Clinical Immunology, Yue-yang Hospital of Integrative Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 200437, China
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Bae SH, Lee KY, Han S, Yun CW, Park C, Jang H. SOX2 Expression Does Not Guarantee Cancer Stem Cell-like Characteristics in Lung Adenocarcinoma. Cells 2024; 13:216. [PMID: 38334608 PMCID: PMC10854781 DOI: 10.3390/cells13030216] [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: 11/17/2023] [Revised: 01/18/2024] [Accepted: 01/22/2024] [Indexed: 02/10/2024] Open
Abstract
Effectively targeting cancer stemness is essential for successful cancer therapy. Recent studies have revealed that SOX2, a pluripotent stem cell factor, significantly contributes to cancer stem cell (CSC)-like characteristics closely associated with cancer malignancy. However, its contradictory impact on patient survival in specific cancer types, including lung adenocarcinoma (LUAD), underscores the need for more comprehensive research to clarify its functional effect on cancer stemness. In this study, we demonstrate that SOX2 is not universally required for the regulation of CSC-like properties in LUAD. We generated SOX2 knockouts in A549, H358, and HCC827 LUAD cells using the CRISPR/Cas9 system. Our results reveal unchanged CSC characteristics, including sustained proliferation, tumor sphere formation, invasion, migration, and therapy resistance, compared to normal cells. Conversely, SOX2 knockdown using conditional shRNA targeting SOX2, significantly reduced CSC traits. However, these loss-of-function effects were not rescued by SOX2 resistant to shRNA, underscoring the potential for SOX2 protein level-independent results in prior siRNA- or shRNA-based research. Ultimately, our findings demonstrate that SOX2 is not absolutely essential in LUAD cancer cells. This emphasizes the necessity of considering cancer subtype-dependent and context-dependent factors when targeting SOX2 overexpression as a potential therapeutic vulnerability in diverse cancers.
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Affiliation(s)
- Seung-Hyun Bae
- Division of Rare and Refractory Cancer, Research Institute, National Cancer Center, Goyang 10408, Republic of Korea; (S.-H.B.)
- Department of Cancer Biomedical Science, National Cancer Center Graduate School of Cancer Science and Policy, Goyang 10408, Republic of Korea;
| | - Kyung Yong Lee
- Department of Cancer Biomedical Science, National Cancer Center Graduate School of Cancer Science and Policy, Goyang 10408, Republic of Korea;
- Division of Cancer Biology, Research Institute, National Cancer Center, Goyang 10408, Republic of Korea
| | - Suji Han
- Division of Rare and Refractory Cancer, Research Institute, National Cancer Center, Goyang 10408, Republic of Korea; (S.-H.B.)
| | - Chul Won Yun
- Division of Rare and Refractory Cancer, Research Institute, National Cancer Center, Goyang 10408, Republic of Korea; (S.-H.B.)
| | - ChanHyeok Park
- Division of Rare and Refractory Cancer, Research Institute, National Cancer Center, Goyang 10408, Republic of Korea; (S.-H.B.)
- Department of Cancer Biomedical Science, National Cancer Center Graduate School of Cancer Science and Policy, Goyang 10408, Republic of Korea;
| | - Hyonchol Jang
- Division of Rare and Refractory Cancer, Research Institute, National Cancer Center, Goyang 10408, Republic of Korea; (S.-H.B.)
- Department of Cancer Biomedical Science, National Cancer Center Graduate School of Cancer Science and Policy, Goyang 10408, Republic of Korea;
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6
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Odarenko KV, Zenkova MA, Markov AV. The Nexus of Inflammation-Induced Epithelial-Mesenchymal Transition and Lung Cancer Progression: A Roadmap to Pentacyclic Triterpenoid-Based Therapies. Int J Mol Sci 2023; 24:17325. [PMID: 38139154 PMCID: PMC10743660 DOI: 10.3390/ijms242417325] [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: 11/01/2023] [Revised: 12/06/2023] [Accepted: 12/07/2023] [Indexed: 12/24/2023] Open
Abstract
Lung cancer is the leading cause of cancer-related death worldwide. Its high mortality is partly due to chronic inflammation that accompanies the disease and stimulates cancer progression. In this review, we analyzed recent studies and highlighted the role of the epithelial-mesenchymal transition (EMT) as a link between inflammation and lung cancer. In the inflammatory tumor microenvironment (iTME), fibroblasts, macrophages, granulocytes, and lymphocytes produce inflammatory mediators, some of which can induce EMT. This leads to increased invasiveness of tumor cells and self-renewal of cancer stem cells (CSCs), which are associated with metastasis and tumor recurrence, respectively. Based on published data, we propose that inflammation-induced EMT may be a potential therapeutic target for the treatment of lung cancer. This prospect is partially realized in the development of EMT inhibitors based on pentacyclic triterpenoids (PTs), described in the second part of our study. PTs reduce the metastatic potential and stemness of tumor cells, making PTs promising candidates for lung cancer therapy. We emphasize that the high diversity of molecular mechanisms underlying inflammation-induced EMT far exceeds those that have been implicated in drug development. Therefore, analysis of information on the relationship between the iTME and EMT is of great interest and may provide ideas for novel treatment approaches for lung cancer.
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Affiliation(s)
- Kirill V. Odarenko
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of the Russian Academy of Sciences, 630090 Novosibirsk, Russia; (K.V.O.); (M.A.Z.)
- Faculty of Natural Sciences, Novosibirsk State University, 630090 Novosibirsk, Russia
| | - Marina A. Zenkova
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of the Russian Academy of Sciences, 630090 Novosibirsk, Russia; (K.V.O.); (M.A.Z.)
| | - Andrey V. Markov
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of the Russian Academy of Sciences, 630090 Novosibirsk, Russia; (K.V.O.); (M.A.Z.)
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7
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Cheng D, Wang J, Wang Y, Xue Y, Yang Q, Yang Q, Zhao H, Huang J, Peng X. Chemokines: Function and therapeutic potential in bone metastasis of lung cancer. Cytokine 2023; 172:156403. [PMID: 37871366 DOI: 10.1016/j.cyto.2023.156403] [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: 09/27/2023] [Revised: 10/15/2023] [Accepted: 10/16/2023] [Indexed: 10/25/2023]
Abstract
Lung cancer is a rapidly progressing disease with a poor prognosis. Bone metastasis is commonly found in 40.6% of advanced-stage patients. The mortality rate of lung cancer patients with bone metastasis can be significantly decreased by implementing novel diagnostic techniques, improved staging and classification systems, precise surgical interventions, and advanced treatment modalities. However, it is important to note that there is currently a lack of radical procedures available for these patients due to the development of drug resistance. Consequently, palliative care approaches are commonly employed in clinical practice. Therefore, new understandings of the process of bone metastasis of lung cancer are critical for developing better treatment strategies to improve patient's clinical cure rate and quality of life. Chemokines are cell-secreted small signaling proteins in cancer occurrence, proliferation, invasion, and metastasis. In this study, we review the development of bone metastasis in lung cancer and discuss the mechanisms of specific chemokine families (CC, CXC, CX3C, and XC) in regulating the biological activities of tumors and promoting bone metastasis. We also highlight some preclinical studies and clinical trials on chemokines for lung cancer and bone metastasis.
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Affiliation(s)
- Dezhou Cheng
- Department of Medical Imaging, Health Science Center, Yangtze University, Jingzhou, Hubei, China
| | - Jiancheng Wang
- Department of Radiology, The Second People's Hospital of Jingzhou, China
| | - Yiling Wang
- Department of Medical Imaging, Health Science Center, Yangtze University, Jingzhou, Hubei, China
| | - Yanfang Xue
- Department of Medical Imaging, Health Science Center, Yangtze University, Jingzhou, Hubei, China
| | - Qing Yang
- Department of Medical Imaging, Health Science Center, Yangtze University, Jingzhou, Hubei, China
| | - Qun Yang
- Department of Medical Imaging, Health Science Center, Yangtze University, Jingzhou, Hubei, China
| | - Huichuan Zhao
- Department of Pathology of the First Affiliated Hospital of Yangtze University, Jingzhou, Hubei, China
| | - Jinbai Huang
- Department of Medical Imaging, Health Science Center, Yangtze University, Jingzhou, Hubei, China; Department of Medical Imaging, the First Affiliated Hospital of Yangtze University, and School of Medicine of Yangtze University, Jingzhou, Hubei, China.
| | - Xiaochun Peng
- Department of Pathophysiology, School of Basic Medicine, Health Science Center, Yangtze University, Jingzhou, Hubei, China.
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Chen Z, Qi Y, Shen J, Chen Z. Histone demethylase KDM6A coordinating with KMT2B regulates self-renewal and chemoresistance of non-small cell lung cancer stem cells. Transl Oncol 2023; 37:101778. [PMID: 37683307 PMCID: PMC10493599 DOI: 10.1016/j.tranon.2023.101778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2023] [Revised: 08/25/2023] [Accepted: 08/30/2023] [Indexed: 09/10/2023] Open
Abstract
BACKGROUND AND AIMS Wnt signaling is essential for the maintenance of cancer stem cells (CSCs), but mutations in the β-catenin and APC genes are less common in non-small cell lung carcinoma (NSCLC). Thus, the mechanism underlying the constitutive activation of Wnt signaling in lung CSCs is still unknown. MATERIALS AND METHODS Gene set enrichment analysis and immunohistochemistry were performed to establish the correlation between KDM6A/KM2B and CSC stemness. Human NSCLC cell lines were genetically manipulated for functional studies. Sphere formation assay and stemness gene expression profiling were examined to investigate the role of KDM6A/KMT2B in lung CSCs. Tumor xenograft assay were used to identify the function of KDM6A/KMT2B on tumorigenicity and tumor recurrence in vivo. Western blot analysis, coimmunoprecipitation and chromatin immunoprecipitation were performed to understand KDM6A/KMT2B mediated epigenetic regulation of Histone 3 lysine 4 methylation (H3K4me) on Wnt signaling pathway. RESULTS We discovered that the expression of Histone demethylase KDM6A and methyltransferase KMT2B correlate with the stemness of CSCs in NSCLC. KDM6A coordinates with KMT2B to activate the Wnt/β-catenin signaling pathway by regulating the H3K4me3 level and promotes the tumorigenicity and maintenance of CSC stemness. Furthermore, KDM6A/ KMT2B overexpression promotes the CSC chemoresistance and tumor recurrence both in vitro and in vivo. Inhibition of KDM6A and KMT2B potently suppress tumor initiation and recurrence in xenografted animal models. CONCLUSION Our findings suggest that KDM6A and KMT2B mediate the constitutive activation of Wnt/β-catenin signaling in lung CSCs, potentially providing a therapeutic target for NSCLC.
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Affiliation(s)
- Zhiwei Chen
- Department of Shanghai Lung Cancer Center, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Yuwen Qi
- Department of Shanghai Lung Cancer Center, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Jie Shen
- Department of Shanghai Lung Cancer Center, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Zhen Chen
- Department of Pathology, Shidong hospital, Yangpu District, Shidong hospital affiliated to University of Shanghai for Science and Technology, China.
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Zeng Z, Fu M, Hu Y, Wei Y, Wei X, Luo M. Regulation and signaling pathways in cancer stem cells: implications for targeted therapy for cancer. Mol Cancer 2023; 22:172. [PMID: 37853437 PMCID: PMC10583419 DOI: 10.1186/s12943-023-01877-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Accepted: 10/05/2023] [Indexed: 10/20/2023] Open
Abstract
Cancer stem cells (CSCs), initially identified in leukemia in 1994, constitute a distinct subset of tumor cells characterized by surface markers such as CD133, CD44, and ALDH. Their behavior is regulated through a complex interplay of networks, including transcriptional, post-transcriptional, epigenetic, tumor microenvironment (TME), and epithelial-mesenchymal transition (EMT) factors. Numerous signaling pathways were found to be involved in the regulatory network of CSCs. The maintenance of CSC characteristics plays a pivotal role in driving CSC-associated tumor metastasis and conferring resistance to therapy. Consequently, CSCs have emerged as promising targets in cancer treatment. To date, researchers have developed several anticancer agents tailored to specifically target CSCs, with some of these treatment strategies currently undergoing preclinical or clinical trials. In this review, we outline the origin and biological characteristics of CSCs, explore the regulatory networks governing CSCs, discuss the signaling pathways implicated in these networks, and investigate the influential factors contributing to therapy resistance in CSCs. Finally, we offer insights into preclinical and clinical agents designed to eliminate CSCs.
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Affiliation(s)
- Zhen Zeng
- Laboratory of Aging Research and Cancer Agent Target, State Key Laboratory of Biotherapy, Cancer Center, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, No. 17, Block 3, Southern Renmin Road, Chengdu, Sichuan, 610041, P.R. China
| | - Minyang Fu
- Laboratory of Aging Research and Cancer Agent Target, State Key Laboratory of Biotherapy, Cancer Center, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, No. 17, Block 3, Southern Renmin Road, Chengdu, Sichuan, 610041, P.R. China
| | - Yuan Hu
- Department of Pediatric Nephrology Nursing, Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, West China Second Hospital, Sichuan University, No. 17, Block 3, Southern Renmin Road, Chengdu, Sichuan, 610041, P.R. China
| | - Yuquan Wei
- Laboratory of Aging Research and Cancer Agent Target, State Key Laboratory of Biotherapy, Cancer Center, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, No. 17, Block 3, Southern Renmin Road, Chengdu, Sichuan, 610041, P.R. China
| | - Xiawei Wei
- Laboratory of Aging Research and Cancer Agent Target, State Key Laboratory of Biotherapy, Cancer Center, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, No. 17, Block 3, Southern Renmin Road, Chengdu, Sichuan, 610041, P.R. China
| | - Min Luo
- Laboratory of Aging Research and Cancer Agent Target, State Key Laboratory of Biotherapy, Cancer Center, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, No. 17, Block 3, Southern Renmin Road, Chengdu, Sichuan, 610041, P.R. China.
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10
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Masumoto N, Kato S, Aichi M, Hasegawa S, Sahara K, Suyama K, Sano A, Miyazaki T, Okudela K, Kaneko T, Takahashi T. AMPAR receptor inhibitors suppress proliferation of human small cell lung cancer cell lines. Thorac Cancer 2023; 14:2897-2908. [PMID: 37605807 PMCID: PMC10569908 DOI: 10.1111/1759-7714.15075] [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: 04/19/2023] [Revised: 07/31/2023] [Accepted: 08/01/2023] [Indexed: 08/23/2023] Open
Abstract
BACKGROUND Small cell lung cancer (SCLC) is a neuroendocrine tumor with poor prognosis. Neuroendocrine tumors possess characteristics of both nerve cells and hormone-secreting cells; therefore, targeting the neuronal properties of these tumors may lead to the development of new therapeutic options. Among the endogenous signaling pathways in the nervous system, targeting the glutamate pathway may be a useful strategy for glioblastoma treatment. Perampanel, an antagonist of the synaptic glutamate α-amino-3-hydroxy-5-methyl-4-isoxazole propionic acid receptor (AMPAR), has been reported to be effective in patients with glioblastoma. In this study, we aimed to investigate the antitumor effects of AMPAR antagonists in human SCLC cell lines. METHODS We performed to examine the expression of AMPAR using Western blot and immunohistochemical analysis. The antitumor effects of AMPAR antagonists on human SCLC cell lines were investigated in vitro and in vivo. We also analyzed the signaling pathway of AMPAR antagonists in SCLC cell lines. Statistical analysis was performed by the GraphPad Prism 6 software. RESULTS We first examined the expression of endogenous AMPAR in six human SCLC cell lines, detecting AMPAR proteins in all of them. Next, we tested the anti-proliferative effect of two AMPAR antagonists, talampanel and cyanquixaline, using SCLC cells in vitro and in vivo. Both AMPAR antagonists inhibited cell proliferation and mitogen-activated protein kinase (MAPK) phosphorylation in SCLC cells in vitro. Further, we observed reduced proliferation of implanted cell lines in an in vivo setting, assessed by Ki-67 immunohistochemistry. Additionally, using immunohistochemical analysis we confirmed AMPAR protein expression in human SCLC samples. CONCLUSION AMPAR may be a potential therapeutic target for SCLC.
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Affiliation(s)
- Nami Masumoto
- Department of PulmonologyYokohama City University Graduate School of MedicineYokohamaJapan
- Department of PhysiologyYokohama City University Graduate School of MedicineYokohamaJapan
- Department of RespirologyNational Hospital Organization Yokohama Medical CenterYokohamaJapan
| | - Shingo Kato
- Department of Clinical Cancer GenomicsYokohama City University HospitalYokohamaJapan
- Department of Gastroenterology and HepatologyYokohama City University Graduate School of MedicineYokohamaJapan
| | - Masahiro Aichi
- Department of PhysiologyYokohama City University Graduate School of MedicineYokohamaJapan
- Department of Obstetrics, Gynecology and Molecular Reproductive ScienceYokohama City University Graduate School of MedicineYokohamaJapan
| | - Sho Hasegawa
- Department of Gastroenterology and HepatologyYokohama City University Graduate School of MedicineYokohamaJapan
| | - Kota Sahara
- Department of PhysiologyYokohama City University Graduate School of MedicineYokohamaJapan
- Department of Gastroenterological SurgeryYokohama City University Graduate School of MedicineYokohamaJapan
| | - Kumiko Suyama
- Department of PhysiologyYokohama City University Graduate School of MedicineYokohamaJapan
| | - Akane Sano
- Department of PhysiologyYokohama City University Graduate School of MedicineYokohamaJapan
| | - Tomoyuki Miyazaki
- Department of PhysiologyYokohama City University Graduate School of MedicineYokohamaJapan
- Center for Promotion of Research and Industry‐Academic Collaboration, Department of Core Project PromotionYokohama City UniversityYokohamaJapan
| | - Koji Okudela
- Department of PathologyYokohama City University Graduate School of MedicineYokohamaJapan
| | - Takeshi Kaneko
- Department of PulmonologyYokohama City University Graduate School of MedicineYokohamaJapan
| | - Takuya Takahashi
- Department of PhysiologyYokohama City University Graduate School of MedicineYokohamaJapan
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Holme JA, Vondráček J, Machala M, Lagadic-Gossmann D, Vogel CFA, Le Ferrec E, Sparfel L, Øvrevik J. Lung cancer associated with combustion particles and fine particulate matter (PM 2.5) - The roles of polycyclic aromatic hydrocarbons (PAHs) and the aryl hydrocarbon receptor (AhR). Biochem Pharmacol 2023; 216:115801. [PMID: 37696458 PMCID: PMC10543654 DOI: 10.1016/j.bcp.2023.115801] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Revised: 09/08/2023] [Accepted: 09/08/2023] [Indexed: 09/13/2023]
Abstract
Air pollution is the leading cause of lung cancer after tobacco smoking, contributing to 20% of all lung cancer deaths. Increased risk associated with living near trafficked roads, occupational exposure to diesel exhaust, indoor coal combustion and cigarette smoking, suggest that combustion components in ambient fine particulate matter (PM2.5), such as polycyclic aromatic hydrocarbons (PAHs), may be central drivers of lung cancer. Activation of the aryl hydrocarbon receptor (AhR) induces expression of xenobiotic-metabolizing enzymes (XMEs) and increase PAH metabolism, formation of reactive metabolites, oxidative stress, DNA damage and mutagenesis. Lung cancer tissues from smokers and workers exposed to high combustion PM levels contain mutagenic signatures derived from PAHs. However, recent findings suggest that ambient air PM2.5 exposure primarily induces lung cancer development through tumor promotion of cells harboring naturally acquired oncogenic mutations, thus lacking typical PAH-induced mutations. On this background, we discuss the role of AhR and PAHs in lung cancer development caused by air pollution focusing on the tumor promoting properties including metabolism, immune system, cell proliferation and survival, tumor microenvironment, cell-to-cell communication, tumor growth and metastasis. We suggest that the dichotomy in lung cancer patterns observed between smoking and outdoor air PM2.5 represent the two ends of a dose-response continuum of combustion PM exposure, where tumor promotion in the peripheral lung appears to be the driving factor at the relatively low-dose exposures from ambient air PM2.5, whereas genotoxicity in the central airways becomes increasingly more important at the higher combustion PM levels encountered through smoking and occupational exposure.
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Affiliation(s)
- Jørn A Holme
- Department of Air Quality and Noise, Division of Climate and Environmental Health, Norwegian Institute of Public Health, PO Box PO Box 222 Skøyen, 0213 Oslo, Norway
| | - Jan Vondráček
- Department of Cytokinetics, Institute of Biophysics of the Czech Academy of Sciences, 61265 Brno, Czech Republic
| | - Miroslav Machala
- Department of Pharmacology and Toxicology, Veterinary Research Institute, 62100 Brno, Czech Republic
| | - Dominique Lagadic-Gossmann
- Univ Rennes, Inserm, EHESP, Irset (Institut de Recherche en Santé, Environnement et Travail), UMR_S 1085, F-35000, Rennes, France
| | - Christoph F A Vogel
- Department of Environmental Toxicology and Center for Health and the Environment, University of California, Davis, CA 95616, USA
| | - Eric Le Ferrec
- Univ Rennes, Inserm, EHESP, Irset (Institut de Recherche en Santé, Environnement et Travail), UMR_S 1085, F-35000, Rennes, France
| | - Lydie Sparfel
- Univ Rennes, Inserm, EHESP, Irset (Institut de Recherche en Santé, Environnement et Travail), UMR_S 1085, F-35000, Rennes, France
| | - Johan Øvrevik
- Department of Biosciences, Faculty of Mathematics and Natural Sciences, University of Oslo, PO Box 1066 Blindern, 0316 Oslo, Norway; Division of Climate and Environmental Health, Norwegian Institute of Public Health, PO Box 222 Skøyen, 0213 Oslo, Norway.
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12
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Tung CH, Wu JE, Huang MF, Wang WL, Wu YY, Tsai YT, Hsu XR, Lin SH, Chen YL, Hong TM. Ubiquitin-specific peptidase 5 facilitates cancer stem cell-like properties in lung cancer by deubiquitinating β-catenin. Cancer Cell Int 2023; 23:207. [PMID: 37726816 PMCID: PMC10510149 DOI: 10.1186/s12935-023-03059-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Accepted: 09/08/2023] [Indexed: 09/21/2023] Open
Abstract
BACKGROUND Lung cancer has the highest mortality rate in the world, and mounting evidence suggests that cancer stem cells (CSCs) are associated with poor prognosis, recurrence, and metastasis of lung cancer. It is urgent to identify new biomarkers and therapeutic targets for targeting lung CSCs. METHODS We computed the single-sample gene set enrichment analysis (ssGSEA) of 1554 Reactome gene sets to identify the mRNA expression-based stemness index (mRNAsi)-associated pathways using the genome-wide RNA sequencing data of 509 patients from The Cancer Genome Atlas (TCGA) cohort of lung adenocarcinoma (LUAD). Phenotypic effects of ubiquitin-specific peptidase 5 (USP5) on the CSC-like properties and metastasis were examined by in vitro sphere formation assay, migration assay, invasion assay, and in vivo xenografted animal models. Cycloheximide chase assay, co-immunoprecipitation assay, and deubiquitination assay were performed to confirm the effect of USP5 on the deubiquitination of β-catenin. RESULTS We demonstrated that USP5 expression were positively correlated with the stemness-associated signatures and poor outcomes in lung cancer specimens. Silencing of endogenous USP5 reduced CSC-like characteristics, epithelial-mesenchymal transition (EMT), and metastasis in vitro and in vivo. Furthermore, USP5 interacted with β-catenin, which resulted in deubiquitination, stabilization of β-catenin, and activation of Wnt/β-catenin pathway. Accordingly, expression of USP5 was positively correlated with the enrichment score of the Wnt/TCF pathway signature in human lung cancer. Silencing of β-catenin expression suppressed USP5-enhancing sphere formation. Targeting USP5 with the small molecule WP1130 promoted the degradation of β-catenin, and showed great inhibitory effects on sphere formation, migration, and invasion. Finally, we identified a poor-prognosis subset of tumors characterized by high levels of USP5, Wnt signaling score, and Stemness score in both TCGA-LUAD and Rousseaux_2013 datasets. CONCLUSIONS These findings reveal a clinical evidence for USP5-enhanced Wnt/β-catenin signaling in promoting lung cancer stemness and metastasis, implying that targeting USP5 could provide beneficial effects to improve lung cancer therapeutics.
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Affiliation(s)
- Chia-Hao Tung
- Institute of Clinical Medicine, College of Medicine, National Cheng Kung University, No. 1, University Road, Tainan, 70101, Taiwan
| | - Jia-En Wu
- Institute of Clinical Medicine, College of Medicine, National Cheng Kung University, No. 1, University Road, Tainan, 70101, Taiwan
| | - Meng-Fan Huang
- Institute of Clinical Medicine, College of Medicine, National Cheng Kung University, No. 1, University Road, Tainan, 70101, Taiwan
| | - Wen-Lung Wang
- Department of Internal Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Yi-Ying Wu
- Clinical Medicine Research Center, College of Medicine, National Cheng Kung University Hospital, National Cheng Kung University, Tainan, Taiwan
| | - Yao-Tsung Tsai
- Institute of Oral Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Xiu-Rui Hsu
- Institute of Clinical Medicine, College of Medicine, National Cheng Kung University, No. 1, University Road, Tainan, 70101, Taiwan
| | - Sheng-Hsiang Lin
- Institute of Clinical Medicine, College of Medicine, National Cheng Kung University, No. 1, University Road, Tainan, 70101, Taiwan
- Biostatistics Consulting Center, College of Medicine, National Cheng Kung University Hospital, National Cheng Kung University, Tainan, Taiwan
| | - Yuh-Ling Chen
- Institute of Oral Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan.
| | - Tse-Ming Hong
- Institute of Clinical Medicine, College of Medicine, National Cheng Kung University, No. 1, University Road, Tainan, 70101, Taiwan.
- Clinical Medicine Research Center, College of Medicine, National Cheng Kung University Hospital, National Cheng Kung University, Tainan, Taiwan.
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13
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Huang Q, Liu L, Xiao D, Huang Z, Wang W, Zhai K, Fang X, Kim J, Liu J, Liang W, He J, Bao S. CD44 + lung cancer stem cell-derived pericyte-like cells cause brain metastases through GPR124-enhanced trans-endothelial migration. Cancer Cell 2023; 41:1621-1636.e8. [PMID: 37595587 DOI: 10.1016/j.ccell.2023.07.012] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Revised: 06/07/2023] [Accepted: 07/28/2023] [Indexed: 08/20/2023]
Abstract
Brain metastasis of lung cancer causes high mortality, but the exact mechanisms underlying the metastasis remain unclear. Here we report that vascular pericytes derived from CD44+ lung cancer stem cells (CSCs) in lung adenocarcinoma (ADC) potently cause brain metastases through the G-protein-coupled receptor 124 (GPR124)-enhanced trans-endothelial migration (TEM). CD44+ CSCs in perivascular niches generate the majority of vascular pericytes in lung ADC. CSC-derived pericyte-like cells (Cd-pericytes) exhibit remarkable TEM capacity to effectively intravasate into the vessel lumina, survive in the circulation, extravasate into the brain parenchyma, and then de-differentiate into tumorigenic CSCs to form metastases. Cd-pericytes uniquely express GPR124 that activates Wnt7-β-catenin signaling to enhance TEM capacity of Cd-pericytes for intravasation and extravasation, two critical steps during tumor metastasis. Furthermore, selective disruption of Cd-pericytes, GPR124, or the Wnt7-β-catenin signaling markedly reduces brain and liver metastases of lung ADC. Our findings uncover an unappreciated cellular and molecular paradigm driving tumor metastasis.
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Affiliation(s)
- Qian Huang
- Department of Cancer Biology, Lerner Research Institute, Cleveland Clinic, Cleveland, OH 44195, USA
| | - Liping Liu
- Department of Thoracic Surgery, the First Affiliated Hospital of Guangzhou Medical University, the State Key Laboratory of Respiratory Disease, and the National Clinical Research Centre for Respiratory Disease, Guangzhou 510120, China
| | - Dakai Xiao
- Department of Thoracic Surgery, the First Affiliated Hospital of Guangzhou Medical University, the State Key Laboratory of Respiratory Disease, and the National Clinical Research Centre for Respiratory Disease, Guangzhou 510120, China
| | - Zhi Huang
- Department of Cancer Biology, Lerner Research Institute, Cleveland Clinic, Cleveland, OH 44195, USA
| | - Wenjun Wang
- Department of Thoracic Surgery, the First Affiliated Hospital of Guangzhou Medical University, the State Key Laboratory of Respiratory Disease, and the National Clinical Research Centre for Respiratory Disease, Guangzhou 510120, China
| | - Kui Zhai
- Department of Cancer Biology, Lerner Research Institute, Cleveland Clinic, Cleveland, OH 44195, USA
| | - Xiaoguang Fang
- Department of Cancer Biology, Lerner Research Institute, Cleveland Clinic, Cleveland, OH 44195, USA
| | - Jongmyung Kim
- Department of Neuro-Oncology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL 33612, USA
| | - James Liu
- Department of Neuro-Oncology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL 33612, USA
| | - Wenhua Liang
- Department of Thoracic Surgery, the First Affiliated Hospital of Guangzhou Medical University, the State Key Laboratory of Respiratory Disease, and the National Clinical Research Centre for Respiratory Disease, Guangzhou 510120, China
| | - Jianxing He
- Department of Thoracic Surgery, the First Affiliated Hospital of Guangzhou Medical University, the State Key Laboratory of Respiratory Disease, and the National Clinical Research Centre for Respiratory Disease, Guangzhou 510120, China.
| | - Shideng Bao
- Department of Cancer Biology, Lerner Research Institute, Cleveland Clinic, Cleveland, OH 44195, USA; Center for Cancer Stem Cell Research, Lerner Research Institute, Cleveland Clinic, Cleveland, OH 44195, USA.
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14
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Lin Y, Song Y, Zhang Y, Shi M, Hou A, Han S. NFAT signaling dysregulation in cancer: Emerging roles in cancer stem cells. Biomed Pharmacother 2023; 165:115167. [PMID: 37454598 DOI: 10.1016/j.biopha.2023.115167] [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: 05/12/2023] [Revised: 07/08/2023] [Accepted: 07/11/2023] [Indexed: 07/18/2023] Open
Abstract
The nuclear factor of activated T cells (NFAT) was first identified as a transcriptional regulator of activated T cells. The NFAT family is involved in the development of tumors. Furthermore, recent evidence reveals that NFAT proteins regulate the development of inflammatory and immune responses. New discoveries have also been made about the mechanisms by which NFAT regulates cancer progression through cancer stem cells (CSC). Here, we discuss the role of the NFAT family in the immune system and various cancer types.
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Affiliation(s)
- Yibin Lin
- Department of Neurosurgery, The First Hospital of China Medical University, Shenyang 110001, China
| | - Yifu Song
- Department of Neurosurgery, The First Hospital of China Medical University, Shenyang 110001, China
| | - Yaochuan Zhang
- Department of Neurosurgery, The First Hospital of China Medical University, Shenyang 110001, China
| | - Mengwu Shi
- Department of Neurosurgery, The First Hospital of China Medical University, Shenyang 110001, China
| | - Ana Hou
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang 110001, China.
| | - Sheng Han
- Department of Neurosurgery, The First Hospital of China Medical University, Shenyang 110001, China.
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15
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Qin L, Yu X, Xu C, Liu Y. Prognostic impact of metastatic patterns and treatment modalities on overall survival in lung squamous cell carcinoma: A population-based study. Medicine (Baltimore) 2023; 102:e34251. [PMID: 37478210 PMCID: PMC10662909 DOI: 10.1097/md.0000000000034251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Accepted: 06/16/2023] [Indexed: 07/23/2023] Open
Abstract
This study aimed to investigate the impact of distinct metastasis patterns on the overall survival (OS) of individuals diagnosed with organ metastatic lung squamous cell carcinoma (LUSC). OS was calculated using the Kaplan-Meier method, and univariate and multivariate Cox regression analyses were conducted to further assess prognostic factors. A total of 36,025 cases meeting the specified criteria were extracted from the Surveillance, Epidemiology, and End Results database. Among these patients, 30.60% (11,023/36,025) were initially diagnosed at stage IV, and 22.03% (7936/36,025) of these individuals exhibited metastasis in at least 1 organ, including the liver, bone, lung, and brain. Among the 4 types of single metastasis, patients with bone metastasis had the lowest mean OS, at 9.438 months (95% CI: 8.684-10.192). Furthermore, among patients with dual-organ metastases, those with both brain and liver metastases had the shortest mean OS, at 5.523 months (95% CI: 3.762-7.285). Multivariate Cox regression analysis revealed that metastatic site is an independent prognostic factor for OS in patients with single and dual-organ metastases. Chemotherapy was beneficial for patients with single and multiple-organ metastases; although surgery was advantageous for those with single and dual-organ metastases, it did not affect the long-term prognosis of patients with triple organ metastases. Radiotherapy only conferred benefits to patients with single-organ metastasis. LUSC patients exhibit a high incidence of metastasis at the time of initial diagnosis, with significant differences in long-term survival among patients with different patterns of metastasis. Among single-organ metastasis cases, lung metastasis is the most frequent and is associated with the longest mean OS. Regarding treatment options, patients with single-organ metastasis can benefit from chemotherapy, surgery, and radiotherapy, and those with metastasis in 2 organs can benefit from chemotherapy and surgery. Patients with metastasis in more than 2 organs, however, can only benefit from chemotherapy. Understanding the variations in metastasis patterns assists in guiding pretreatment assessments and in determining appropriate therapeutic interventions for LUSC.
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Affiliation(s)
- Lang Qin
- Department of Radiotherapy, Taixing Clinical College of Bengbu Medical College, Bengbu, China
| | - Xiangtian Yu
- Department of Anesthesiology, The First Affiliated Hospital of Bengbu Medical College, Bengbu, China
| | - Chuang Xu
- Department of Orthopedics, Taixing Clinical College of Bengbu Medical College, Bengbu, China
| | - Yangchen Liu
- Department of Radiotherapy, Taixing Clinical College of Bengbu Medical College, Bengbu, China
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16
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Safaei S, Sajed R, Shariftabrizi A, Dorafshan S, Saeednejad Zanjani L, Dehghan Manshadi M, Madjd Z, Ghods R. Tumor matrix stiffness provides fertile soil for cancer stem cells. Cancer Cell Int 2023; 23:143. [PMID: 37468874 DOI: 10.1186/s12935-023-02992-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2023] [Accepted: 07/12/2023] [Indexed: 07/21/2023] Open
Abstract
Matrix stiffness is a mechanical characteristic of the extracellular matrix (ECM) that increases from the tumor core to the tumor periphery in a gradient pattern in a variety of solid tumors and can promote proliferation, invasion, metastasis, drug resistance, and recurrence. Cancer stem cells (CSCs) are a rare subpopulation of tumor cells with self-renewal, asymmetric cell division, and differentiation capabilities. CSCs are thought to be responsible for metastasis, tumor recurrence, chemotherapy resistance, and consequently poor clinical outcomes. Evidence suggests that matrix stiffness can activate receptors and mechanosensor/mechanoregulator proteins such as integrin, FAK, and YAP, modulating the characteristics of tumor cells as well as CSCs through different molecular signaling pathways. A deeper understanding of the effect of matrix stiffness on CSCs characteristics could lead to development of innovative cancer therapies. In this review, we discuss how the stiffness of the ECM is sensed by the cells and how the cells respond to this environmental change as well as the effect of matrix stiffness on CSCs characteristics and also the key malignant processes such as proliferation and EMT. Then, we specifically focus on how increased matrix stiffness affects CSCs in breast, lung, liver, pancreatic, and colorectal cancers. We also discuss how the molecules responsible for increased matrix stiffness and the signaling pathways activated by the enhanced stiffness can be manipulated as a therapeutic strategy for cancer.
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Affiliation(s)
- Sadegh Safaei
- Department of Molecular Medicine, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Hemmat Street (Highway), Next to Milad Tower, Tehran, 14496-14530, Iran
- Oncopathology Research Center, Iran University of Medical Sciences (IUMS), Hemmat Street (Highway), Next to Milad Tower, Tehran, 14496-14530, Iran
| | - Roya Sajed
- Department of Molecular Medicine, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Hemmat Street (Highway), Next to Milad Tower, Tehran, 14496-14530, Iran
- Oncopathology Research Center, Iran University of Medical Sciences (IUMS), Hemmat Street (Highway), Next to Milad Tower, Tehran, 14496-14530, Iran
| | - Ahmad Shariftabrizi
- Division of Nuclear Medicine, Department of Radiology, University of Iowa Carver College of Medicine, Iowa City, IA, USA
- Division of Nuclear Medicine, Department of Radiology, Roswell Park Comprehensive Cancer Center, Buffalo, NY, USA
| | - Shima Dorafshan
- Department of Molecular Medicine, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Hemmat Street (Highway), Next to Milad Tower, Tehran, 14496-14530, Iran
- Oncopathology Research Center, Iran University of Medical Sciences (IUMS), Hemmat Street (Highway), Next to Milad Tower, Tehran, 14496-14530, Iran
| | - Leili Saeednejad Zanjani
- Oncopathology Research Center, Iran University of Medical Sciences (IUMS), Hemmat Street (Highway), Next to Milad Tower, Tehran, 14496-14530, Iran
- Department of Pathology and Genomic Medicine, Sidney Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, PA, USA
| | - Masoumeh Dehghan Manshadi
- Department of Molecular Medicine, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Hemmat Street (Highway), Next to Milad Tower, Tehran, 14496-14530, Iran
- Oncopathology Research Center, Iran University of Medical Sciences (IUMS), Hemmat Street (Highway), Next to Milad Tower, Tehran, 14496-14530, Iran
| | - Zahra Madjd
- Department of Molecular Medicine, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Hemmat Street (Highway), Next to Milad Tower, Tehran, 14496-14530, Iran.
- Oncopathology Research Center, Iran University of Medical Sciences (IUMS), Hemmat Street (Highway), Next to Milad Tower, Tehran, 14496-14530, Iran.
| | - Roya Ghods
- Department of Molecular Medicine, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Hemmat Street (Highway), Next to Milad Tower, Tehran, 14496-14530, Iran.
- Oncopathology Research Center, Iran University of Medical Sciences (IUMS), Hemmat Street (Highway), Next to Milad Tower, Tehran, 14496-14530, Iran.
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17
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Zhang C, Zhang C, Wang K, Wang H. Orchestrating smart therapeutics to achieve optimal treatment in small cell lung cancer: recent progress and future directions. J Transl Med 2023; 21:468. [PMID: 37452395 PMCID: PMC10349514 DOI: 10.1186/s12967-023-04338-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2023] [Accepted: 07/09/2023] [Indexed: 07/18/2023] Open
Abstract
Small cell lung cancer (SCLC) is a recalcitrant malignancy with elusive mechanism of pathogenesis and dismal prognosis. Over the past decades, platinum-based chemotherapy has been the backbone treatment for SCLC. However, subsequent chemoresistance after initial effectiveness urges researchers to explore novel therapeutic targets of SCLC. Recent years have witnessed significant improvements in targeted therapy in SCLC. New molecular candidates such as Ataxia telangiectasia and RAD3-related protein (ATR), WEE1, checkpoint kinase 1 (CHK1) and poly-ADP-ribose polymerase (PARP) have shown promising therapeutic utility in SCLC. While immune checkpoint inhibitor (ICI) has emerged as an indispensable treatment modality for SCLC, approaches to boost efficacy and reduce toxicity as well as selection of reliable biomarkers for ICI in SCLC have remained elusive and warrants our further investigation. Given the increasing importance of precision medicine in SCLC, optimal subtyping of SCLC using multi-omics have gradually applied into clinical practice, which may identify more drug targets and better tailor treatment strategies to each individual patient. The present review summarizes recent progress and future directions in SCLC. In addition to the emerging new therapeutics, we also focus on the establishment of predictive model for early detection of SCLC. More importantly, we also propose a multi-dimensional model in the prognosis of SCLC to ultimately attain the goal of accurate treatment of SCLC.
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Affiliation(s)
- Chenyue Zhang
- Department of Integrated Therapy, Fudan University Shanghai Cancer Center, Shanghai Medical College, Shanghai, China
| | - Chenxing Zhang
- Department of Nephrology, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Kai Wang
- Key Laboratory of Epigenetics and Oncology, Research Center for Preclinical Medicine, Southwest Medical University, Luzhou, China
| | - Haiyong Wang
- Department of Internal Medicine-Oncology, Shandong Cancer Hospital and Institute, Shandong First Medical University, Shandong Academy of Medical Sciences, Number 440, Ji Yan Road, Jinan, China.
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18
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Bolgova L, Shypko A, Tuganova T, Alekseenko O, Smolanka I, Ponomarenko A, Bilko N. NEW DATA ON HISTOGENESIS AND HISTOLOGICAL STRUCTURE OF LUNG CANCER. Exp Oncol 2023; 45:62-69. [PMID: 37417281 DOI: 10.15407/exp-oncology.2023.01.062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Indexed: 07/08/2023]
Abstract
BACKGROUND Lung cancer (LC) is one of the most common malignant neoplasms in men around the world, which poses a number of important challenges for scientists. AIM To analyze the histogenesis, features of the histological structure, and growth of LC. MATERIALS AND METHODS The surgical material of 81 patients with LC was studied. Histological preparations were stained with hematoxylin and eosin (H&E) using the Papanicolaou method. Immunohistochemical reactions with monoclonals (Ki67, PCNA) were conducted. RESULTS In histological preparations of all LC types (squamous, adenocarcinoma, and small cell), along with solid growth, tumor growth in the alveoli was determined, which started from the basal membrane and grew toward the alveolus center, as evidenced by the morphological features of growth, tumor spread, and development of necrosis in the center. CONCLUSION In all the studied histological preparations of LC, tumor growth in the alveoli is noted, which is confirmed by structural and cellular signs and the nature of tumor decay in the alveolus center, which corresponds to the general patterns of development of malignant epithelial tumors.
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Affiliation(s)
- L Bolgova
- National Cancer Institute of the Ministry of Health of Ukraine, Kyiv 03022, Ukraine
| | - A Shypko
- National Cancer Institute of the Ministry of Health of Ukraine, Kyiv 03022, Ukraine
| | - T Tuganova
- National Cancer Institute of the Ministry of Health of Ukraine, Kyiv 03022, Ukraine
| | - O Alekseenko
- National Cancer Institute of the Ministry of Health of Ukraine, Kyiv 03022, Ukraine
| | - I Smolanka
- National Cancer Institute of the Ministry of Health of Ukraine, Kyiv 03022, Ukraine
| | - A Ponomarenko
- National University of "Kyiv-Mohyla Academy", Kyiv 04655, Ukraine
| | - N Bilko
- National University of "Kyiv-Mohyla Academy", Kyiv 04655, Ukraine
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19
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Razi S, Haghparast A, Chodari Khameneh S, Ebrahimi Sadrabadi A, Aziziyan F, Bakhtiyari M, Nabi-Afjadi M, Tarhriz V, Jalili A, Zalpoor H. The role of tumor microenvironment on cancer stem cell fate in solid tumors. Cell Commun Signal 2023; 21:143. [PMID: 37328876 PMCID: PMC10273768 DOI: 10.1186/s12964-023-01129-w] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Accepted: 04/15/2023] [Indexed: 06/18/2023] Open
Abstract
In the last few decades, the role of cancer stem cells in initiating tumors, metastasis, invasion, and resistance to therapies has been recognized as a potential target for tumor therapy. Understanding the mechanisms by which CSCs contribute to cancer progression can help to provide novel therapeutic approaches against solid tumors. In this line, the effects of mechanical forces on CSCs such as epithelial-mesenchymal transition, cellular plasticity, etc., the metabolism pathways of CSCs, players of the tumor microenvironment, and their influence on the regulating of CSCs can lead to cancer progression. This review focused on some of these mechanisms of CSCs, paving the way for a better understanding of their regulatory mechanisms and developing platforms for targeted therapies. While progress has been made in research, more studies will be required in the future to explore more aspects of how CSCs contribute to cancer progression. Video Abstract.
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Affiliation(s)
- Sara Razi
- Vira Pioneers of Modern Science (VIPOMS), Tehran, Iran
| | | | | | - Amin Ebrahimi Sadrabadi
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACER, Tehran, Iran
- Cytotech and Bioinformatics Research Group, Tehran, Iran
| | - Fatemeh Aziziyan
- Department of Biochemistry, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran
- Network of Immunity in Infection, Malignancy & Autoimmunity (NIIMA), Universal Scientific Education & Research Network (USERN), Tehran, Iran
| | - Maryam Bakhtiyari
- Network of Immunity in Infection, Malignancy & Autoimmunity (NIIMA), Universal Scientific Education & Research Network (USERN), Tehran, Iran
- Department of Medical Laboratory Sciences, Faculty of Allied Medicine, Qazvin University of Medical Sciences, Qazvin, Iran
| | - Mohsen Nabi-Afjadi
- Department of Biochemistry, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran
| | - Vahideh Tarhriz
- Infectious and Tropical Diseases Research Center, Tabriz University of Medical Sciences, P.O. Box 5163639888, Tabriz, Iran.
| | - Arsalan Jalili
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACER, Tehran, Iran.
- Parvaz Research Ideas Supporter Institute, Tehran, Iran.
| | - Hamidreza Zalpoor
- Network of Immunity in Infection, Malignancy & Autoimmunity (NIIMA), Universal Scientific Education & Research Network (USERN), Tehran, Iran.
- Shiraz Neuroscience Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.
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20
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Yehya A, Youssef J, Hachem S, Ismael J, Abou-Kheir W. Tissue-specific cancer stem/progenitor cells: Therapeutic implications. World J Stem Cells 2023; 15:323-341. [PMID: 37342220 PMCID: PMC10277968 DOI: 10.4252/wjsc.v15.i5.323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Revised: 02/14/2023] [Accepted: 04/12/2023] [Indexed: 05/26/2023] Open
Abstract
Surgical resection, chemotherapy, and radiation are the standard therapeutic modalities for treating cancer. These approaches are intended to target the more mature and rapidly dividing cancer cells. However, they spare the relatively quiescent and intrinsically resistant cancer stem cells (CSCs) subpopulation residing within the tumor tissue. Thus, a temporary eradication is achieved and the tumor bulk tends to revert supported by CSCs' resistant features. Based on their unique expression profile, the identification, isolation, and selective targeting of CSCs hold great promise for challenging treatment failure and reducing the risk of cancer recurrence. Yet, targeting CSCs is limited mainly by the irrelevance of the utilized cancer models. A new era of targeted and personalized anti-cancer therapies has been developed with cancer patient-derived organoids (PDOs) as a tool for establishing pre-clinical tumor models. Herein, we discuss the updated and presently available tissue-specific CSC markers in five highly occurring solid tumors. Additionally, we highlight the advantage and relevance of the three-dimensional PDOs culture model as a platform for modeling cancer, evaluating the efficacy of CSC-based therapeutics, and predicting drug response in cancer patients.
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Affiliation(s)
- Amani Yehya
- Department of Anatomy, Cell Biology and Physiological Sciences, American University of Beirut, Beirut 1107-2020, Lebanon
| | - Joe Youssef
- Department of Anatomy, Cell Biology and Physiological Sciences, American University of Beirut, Beirut 1107-2020, Lebanon
| | - Sana Hachem
- Department of Anatomy, Cell Biology and Physiological Sciences, American University of Beirut, Beirut 1107-2020, Lebanon
| | - Jana Ismael
- Department of Anatomy, Cell Biology and Physiological Sciences, American University of Beirut, Beirut 1107-2020, Lebanon
| | - Wassim Abou-Kheir
- Department of Anatomy, Cell Biology and Physiological Sciences, American University of Beirut, Beirut 1107-2020, Lebanon
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21
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Desai N, Hasan U, K J, Mani R, Chauhan M, Basu SM, Giri J. Biomaterial-based platforms for modulating immune components against cancer and cancer stem cells. Acta Biomater 2023; 161:1-36. [PMID: 36907233 DOI: 10.1016/j.actbio.2023.03.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 03/02/2023] [Accepted: 03/02/2023] [Indexed: 03/12/2023]
Abstract
Immunotherapy involves the therapeutic alteration of the patient's immune system to identify, target, and eliminate cancer cells. Dendritic cells, macrophages, myeloid-derived suppressor cells, and regulatory T cells make up the tumor microenvironment. In cancer, these immune components (in association with some non-immune cell populations like cancer-associated fibroblasts) are directly altered at a cellular level. By dominating immune cells with molecular cross-talk, cancer cells can proliferate unchecked. Current clinical immunotherapy strategies are limited to conventional adoptive cell therapy or immune checkpoint blockade. Targeting and modulating key immune components presents an effective opportunity. Immunostimulatory drugs are a research hotspot, but their poor pharmacokinetics, low tumor accumulation, and non-specific systemic toxicity limit their use. This review describes the cutting-edge research undertaken in the field of nanotechnology and material science to develop biomaterials-based platforms as effective immunotherapeutics. Various biomaterial types (polymer-based, lipid-based, carbon-based, cell-derived, etc.) and functionalization methodologies for modulating tumor-associated immune/non-immune cells are explored. Additionally, emphasis has been laid on discussing how these platforms can be used against cancer stem cells, a fundamental contributor to chemoresistance, tumor relapse/metastasis, and failure of immunotherapy. Overall, this comprehensive review strives to provide up-to-date information to an audience working at the juncture of biomaterials and cancer immunotherapy. STATEMENT OF SIGNIFICANCE: Cancer immunotherapy possesses incredible potential and has successfully transitioned into a clinically lucrative alternative to conventional anti-cancer therapies. With new immunotherapeutics getting rapid clinical approval, fundamental problems associated with the dynamic nature of the immune system (like limited clinical response rates and autoimmunity-related adverse effects) have remained unanswered. In this context, treatment approaches that focus on modulating the compromised immune components within the tumor microenvironment have garnered significant attention amongst the scientific community. This review aims to provide a critical discussion on how various biomaterials (polymer-based, lipid-based, carbon-based, cell-derived, etc.) can be employed along with immunostimulatory agents to design innovative platforms for selective immunotherapy directed against cancer and cancer stem cells.
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Affiliation(s)
- Nimeet Desai
- Department of Biomedical Engineering, Indian Institute of Technology Hyderabad, Kandi, Telangana, India
| | - Uzma Hasan
- Department of Biomedical Engineering, Indian Institute of Technology Hyderabad, Kandi, Telangana, India; Department of Biotechnology, Indian Institute of Technology Hyderabad, Kandi, Telangana, India
| | - Jeyashree K
- Department of Biomedical Engineering, Indian Institute of Technology Hyderabad, Kandi, Telangana, India
| | - Rajesh Mani
- Department of Biomedical Engineering, Indian Institute of Technology Hyderabad, Kandi, Telangana, India
| | - Meenakshi Chauhan
- Department of Biomedical Engineering, Indian Institute of Technology Hyderabad, Kandi, Telangana, India
| | - Suparna Mercy Basu
- Department of Biomedical Engineering, Indian Institute of Technology Hyderabad, Kandi, Telangana, India
| | - Jyotsnendu Giri
- Department of Biomedical Engineering, Indian Institute of Technology Hyderabad, Kandi, Telangana, India.
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22
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Liang S, Wang Q, Wen Y, Wang Y, Li M, Wang Q, Peng J, Guo L. Ligand-independent EphA2 contributes to chemoresistance in small-cell lung cancer by enhancing PRMT1-mediated SOX2 methylation. Cancer Sci 2023; 114:921-936. [PMID: 36377249 PMCID: PMC9986087 DOI: 10.1111/cas.15653] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Revised: 10/31/2022] [Accepted: 11/04/2022] [Indexed: 11/16/2022] Open
Abstract
Chemoresistance is the crux of clinical treatment failure of small-cell lung cancer (SCLC). Cancer stem cells play a critical role in therapeutic resistance of malignant tumors. Studies have shown that the role of erythropoietin-producing hepatocellular A2 (EphA2) in tumors is complex. This study aimed to test the hypothesis that ligand-independent activation of EphA2 modulates chemoresistance by enhancing stemness in SCLC. We verified that EphA2 was activated in chemoresistance sublines in a ligand-independent manner rather than a ligand-dependent manner. Ligand-independent EphA2 enhanced the expression of stemness-associated biomarkers (CD44, Myc, and SOX2), accelerated epithelial-mesenchymal transition (EMT) and reinforced self-renewal to drive the chemoresistance of SCLC, while the P817H mutant EphA2 neutralized intrinsic function. Co-immunoprecipitation (co-IP) and GST-pull down experiments were conducted to verify that EphA2 directly interacted with PRMT1. Moreover, EphA2 increased the expression and activity of PRMT1. Whereafter, PRMT1 interacted with and methylated SOX2 to induce stemness and chemoresistance in SCLC. Pharmacological inhibition of EphA2 showed a synergistic anti-tumor effect with chemotherapy in preclinical models, including patient-derived xenograft (PDX) models. These findings highlight, for the first time, that the EphA2/PRMT1/SOX2 pathway induces chemoresistance in SCLC by promoting stemness. EphA2 is a potential therapeutic target in SCLC treatment.
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Affiliation(s)
- Shumei Liang
- Department of Pathology, Zhujiang Hospital, Southern Medical University, Guangzhou, People's Republic of China
| | - Qiuping Wang
- Department of Pathology, Zhujiang Hospital, Southern Medical University, Guangzhou, People's Republic of China
| | - Yang Wen
- Department of Pathology, Zhujiang Hospital, Southern Medical University, Guangzhou, People's Republic of China
| | - Yu Wang
- Department of Pathology, Zhujiang Hospital, Southern Medical University, Guangzhou, People's Republic of China
| | - Man Li
- Department of Pathology, Zhujiang Hospital, Southern Medical University, Guangzhou, People's Republic of China
| | - Qiongyao Wang
- Department of Oncology, Zhujiang Hospital, Southern Medical University, Guangzhou, People's Republic of China
| | - Juan Peng
- Department of Pathology, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, People's Republic of China
| | - Linlang Guo
- Department of Pathology, Zhujiang Hospital, Southern Medical University, Guangzhou, People's Republic of China
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23
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Shu X, Chen M, Liu SY, Yu L, Sun LX, Sun LC, Ran YL. Palladin promotes cancer stem cell-like properties in lung cancer by activating Wnt/Β-Catenin signaling. Cancer Med 2023; 12:4510-4520. [PMID: 36047666 PMCID: PMC9972019 DOI: 10.1002/cam4.5192] [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: 05/24/2022] [Revised: 08/15/2022] [Accepted: 08/22/2022] [Indexed: 11/09/2022] Open
Abstract
BACKGROUND Cancer stem cells (CSCs) are responsible for drug resistance, cancer relapse, and metastasis. Here, we report the first analysis of Palladin expression and its impacts on stem cell-like properties in lung cancer. METHODS Tissue microarrays were used to investigate Palladin expression and its association with prognosis. Immunofluorescence (IF), flow fluorescence assay, and Western blot were performed to detect Palladin expression in 6 NSCLC cell lines. Cell phenotypes and drug resistance were evaluated. Xenograft models were constructed to confirm the role of Palladin in vivo. RESULTS By using the tissue microarrays, Palladin was identified to be highly expressed in the cytoplasm, specifically in the cytomembrane of NSCLC, and its high expression is associated with poor prognosis. Palladin is widely expressed and enriched in the sphere cells. The in vitro and in vivo studies showed that Palladin promoted stem cell-like properties, including cell viability, invasion, migration, self-renewal abilities, taxol resistance, and tumorigenicity. Western blot revealed that Palladin promoted the accumulation of β-catenin and activated Wnt/β-catenin signaling. Tissue microarrays analysis further confirmed the positive correlation between Palladin and β-catenin. Wnt/β-catenin pathway inhibitor blocked the Palladin-induced enhancement of sphere-forming. CONCLUSIONS Palladin might act as an oncogene by promoting CSCs-like properties and tumorigenicity of NSCLC cells via the Wnt/β-catenin signaling pathway. Besides, Palladin was identified to have the potential as a cell surface marker for LCSCs identification. These findings provide a possible target for developing putative agents targeted to LCSCs.
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Affiliation(s)
- Xiong Shu
- Laboratory of Molecular Orthopaedics, Beijing Research Institute of Orthopaedics and Traumatology, Beijing JiShuiTan Hospital, Beijing, P. R. China
| | - Meng Chen
- State Key Laboratory of Molecular Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, P. R. China
| | - Shi-Ya Liu
- State Key Laboratory of Molecular Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, P. R. China
| | - Long Yu
- State Key Laboratory of Molecular Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, P. R. China
| | - Li-Xin Sun
- State Key Laboratory of Molecular Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, P. R. China
| | - Li-Chao Sun
- State Key Laboratory of Molecular Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, P. R. China
| | - Yu-Liang Ran
- State Key Laboratory of Molecular Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, P. R. China
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24
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Xie C, Liang C, Wang R, Yi K, Zhou X, Li X, Chen Y, Miao D, Zhong C, Zhu J. Resveratrol suppresses lung cancer by targeting cancer stem-like cells and regulating tumor microenvironment. J Nutr Biochem 2023; 112:109211. [PMID: 36370924 DOI: 10.1016/j.jnutbio.2022.109211] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2022] [Revised: 06/30/2022] [Accepted: 09/23/2022] [Indexed: 11/11/2022]
Abstract
Increasing evidence indicate that cancer stem cells (CSCs) are the key driver of tumor initiation and recurrence. The cellular and soluble components of the tumor microenvironment (TME) impact on cancer initiation and progression, such as cytokines and chemokines. Thus, targeting CSCs and TME is a novel anti-cancer approach. Resveratrol (RES), a bioactive phytochemical extracted from various plants, exhibits tumor-suppressing activities in lung cancer, yet the mechanism remains poorly understood. Our data showed that the expression level of IL-6 was positively correlated with the presence of lung cancer stem-like cells (LCSCs) in human lung cancer tissues. In vitro results showed that IL-6 was highly elevated in lung cancer sphere-forming cells and could enhance the stemness of LCSCs, including tumor sphere formation ability, the percentage of CD133 positive cells, and the expression of LCSC specific markers (CD133, ALDH1A1 and Nanog). Simultaneously, our results confirmed that RES effectively inhibited LCSC properties, downregulated Wnt/β-catenin signaling and reduced IL-6 level in vitro and in vivo. Furthermore, we found RES treatment attenuated the activation of Wnt/β-catenin signaling by LiCl (GSK3β agonist). IL-6-promoted LCSC properties and Wnt/β-catenin signaling was also reversed by RES. Taken together, these data illustrated that RES inhibited lung cancer by targeting LCSCs and IL-6 in TME. The novel findings from this study provided evidence that RES exhibited multi-target effects on suppression of lung cancer and could be a novel potent cancer-preventive compound.
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Affiliation(s)
- Chunfeng Xie
- Department of Nutrition and Food Safety, School of Public Health, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Chunhua Liang
- Department of Nutrition and Food Safety, School of Public Health, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Rong Wang
- State Key Laboratory of Reproductive Medicine, The Research Center for Bone and Stem Cells, Department of Anatomy, Histology and Embryology, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Kefan Yi
- Department of Nutrition and Food Safety, School of Public Health, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Xu Zhou
- Department of Nutrition and Food Safety, School of Public Health, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Xiaoting Li
- Department of Nutrition and Food Safety, School of Public Health, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Yue Chen
- Department of Nutrition and Food Safety, School of Public Health, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Dengshun Miao
- Research Center for Bone and Stem Cells, Department of Anatomy, Histology and Embryology, Key Laboratory for Aging & Disease, Nanjing Medical University, Nanjing, Jiangsu, China.
| | - Caiyun Zhong
- Department of Nutrition and Food Safety, School of Public Health, Nanjing Medical University, Nanjing, Jiangsu, China; Cancer Research Division, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, Jiangsu, China.
| | - Jianyun Zhu
- Department of Laboratory, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Suzhou, Jiangsu, China.
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25
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Mei Y, Chen D, He S, Ye J, Luo M, Wu Q, Huang Y. Transcription Factor ELK3 Promotes Stemness and Oxaliplatin Resistance of Glioma Cells by Regulating RNASEH2A. Horm Metab Res 2023; 55:149-155. [PMID: 36638810 DOI: 10.1055/a-1981-3328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Oxaliplatin is a member of the platinum group that is often used to treat glioma, a common type of malignant brain tumor, though it does not come with desirable and notable effects. This study attempted to investigate how ELK3 impacts the oxaliplatin resistance of glioma cells and its molecular mechanism. Bioinformatics analysis was employed to screen mRNAs with differential expression in glioma cells and predict the possible regulator downstream. We used qRT-PCR to detect the expression of ELK3 and RNASEH2A. Dual-luciferase and ChIP assays were adopted to reassure the regulatory relationship between the two. We also evaluated cell viability and sphere formation efficiency through CCK-8 and sphere formation assay and calculated the IC50 value by using CCK-8 assay. The expression of stemness-related proteins (ALDH1 and Nanog) was assessed through western blot. Glioma cells and tissues presented a significantly high expression of ELK3, the knock-down of which would reduce the cell viability, stemness and oxaliplatin resistance dramatically. Bioinformatics analysis predicted RNASEH2A to be the downstream regulator of ELK3. RNASEH2A was remarkably upregulated in glioma tissue and cells. The results from dual luciferase assay and ChIP experiment verified the binding relationship between RNASEH2A promoter region and ELK3. Then through rescue experiments, we confirmed that overexpression of RNASEH2A could compensate for the inhibition of glioma cell progression resulting from the knock-down of ELK3. ELK3 could promote stemness and oxaliplatin resistance of glioma cells by upregulating RNASEH2A, indicating that targeting ELK3/RNASEH2A axis may be a possible solution to overcome oxaliplatin resistance of glioma cells.
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Affiliation(s)
- Yimin Mei
- Neurosurgery, Zhejiang Lishui Central Hospital, Lishui, China
| | - Duoning Chen
- Neurosurgery, Zhejiang Lishui Central Hospital, Lishui, China
| | - Shike He
- Neurosurgery, Zhejiang Lishui Central Hospital, Lishui, China
| | - Jinping Ye
- Neurosurgery, Zhejiang Lishui Central Hospital, Lishui, China
| | - Ming Luo
- Neurosurgery, Zhejiang Lishui Central Hospital, Lishui, China
| | - Qiangjun Wu
- Neurosurgery, Zhejiang Lishui Central Hospital, Lishui, China
| | - Yuan Huang
- Pathology, Zhejiang Lishui Central Hospital, Lishui, China
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26
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Guo W, Qiao T, Li T. The role of stem cells in small-cell lung cancer: evidence from chemoresistance to immunotherapy. Semin Cancer Biol 2022; 87:160-169. [PMID: 36371027 DOI: 10.1016/j.semcancer.2022.11.006] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Revised: 11/03/2022] [Accepted: 11/08/2022] [Indexed: 11/11/2022]
Abstract
Small cell lung cancer (SCLC) is the most aggressive subtype of lung cancer, accounting for approximately 15% among all lung cancers. Despite the ability of chemotherapy, the first-line treatment for SCLC, to rapidly shrink tumors, nearly all patients experience recurrence and metastasis within a few months. Cancer stem cells (CSCs) are a small population of tumor cells responsible for tumorigenesis, metastasis, and recurrence after treatment, which play a crucial role in chemoresistance by promoting DNA repair and expression of drug resistance-associated proteins. Thus, targeting CSCs has been successful in certain malignancies. Tumor therapy has entered the era of immunotherapy and numerous preclinical trials have demonstrated the effectiveness of immunotherapeutic approaches targeting CSCs, such as tumor vaccines and chimeric antigen receptor (CAR) T cell, and the feasibility of combining them with chemotherapy. Therefore, a deeper understanding of the interaction between CSCs and immune system is essential to facilitate the advances of new immunotherapies approaches targeting CSCs as well as combination with standard drugs such as chemotherapy. This narrative review summarizes the mechanisms of chemoresistance of CSCs in SCLC and the latest advances in targeted therapies. Thereafter, we discuss the effects of CSCs on tumor immune microenvironment in SCLC and corresponding immunotherapeutic approaches. Eventually, we propose that the combination of immunotherapy targeting CSCs with standard drugs is a promising direction for SCLC therapies.
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Affiliation(s)
- Wenwen Guo
- Department of Pathology, Xianyang Central Hospital, Xianyang 712000, China
| | - Tianyun Qiao
- Department of Thoracic Surgery, Tangdu Hospital, Fourth Military Medical University, Xi'an 710032, China
| | - Tian Li
- School of Basic Medicine, Fourth Military Medical University, Xi'an 710032, China.
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27
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Wang J, Liu X, Li P, Wang J, Shu Y, Zhong X, Gao Z, Yang J, Jiang Y, Zhou X, Yang G. Long noncoding RNA HOTAIR regulates the stemness of breast cancer cells via activation of the NF-κB signaling pathway. J Biol Chem 2022; 298:102630. [PMID: 36273585 PMCID: PMC9691943 DOI: 10.1016/j.jbc.2022.102630] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Revised: 10/08/2022] [Accepted: 10/12/2022] [Indexed: 11/07/2022] Open
Abstract
Breast cancer is the most prevalent cancer among women, and it is characterized by a high rate of tumor development and heterogeneity. Breast cancer stem cells (CSCs) may well contribute to these pathological properties, but the mechanisms underlying their self-renewal and maintenance are still elusive. Here, we found that the long noncoding RNA HOTAIR is highly expressed in breast CSCs. HOTAIR is required for breast CSC self-renewal and tumor propagation. Mechanistically, we demonstrate that HOTAIR recruits the PRC2 protein complex to the promoter of IκBα to inhibit its expression, leading to activation of the NF-κB signaling pathway. The activated NF-κB signaling promotes downstream c-Myc and Cyclin D1 expression. Furthermore, our analysis of clinical samples from the GEPIA database indicated that the IκBα level, as well as the survival rate of patients, with high HOTAIR expression was significantly lower than that of patients with relatively low HOTAIR expression. Our data suggest that HOTAIR-mediated NF-κB signaling primes breast CSC self-renewal and tumor propagation. In sum, we have identified HOTAIR-based NF-κB signaling regulatory circuit that promotes tumorigenic activity in breast CSCs, further indicating that HOTAIR could be a promising target for clinical treatment of breast cancers.
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Affiliation(s)
- Jiajia Wang
- Department of Clinical Medicine & Key Laboratory of Novel Targets and Drug Study for Neural Repair of Zhejiang Province, School of Medicine, Zhejiang University City College, Hangzhou, China,Core Facilities, School of Medicine, Zhejiang University, Hangzhou, China
| | - Xingzhu Liu
- Department of Clinical Medicine & Key Laboratory of Novel Targets and Drug Study for Neural Repair of Zhejiang Province, School of Medicine, Zhejiang University City College, Hangzhou, China,School of Bioengineering, Hangzhou Medical College, Hangzhou, China
| | - Ping Li
- School of Bioengineering, Hangzhou Medical College, Hangzhou, China
| | - Junrong Wang
- Department of Clinical Medicine & Key Laboratory of Novel Targets and Drug Study for Neural Repair of Zhejiang Province, School of Medicine, Zhejiang University City College, Hangzhou, China
| | - Yu Shu
- School of Bioengineering, Hangzhou Medical College, Hangzhou, China
| | - Xinyu Zhong
- Department of Clinical Medicine & Key Laboratory of Novel Targets and Drug Study for Neural Repair of Zhejiang Province, School of Medicine, Zhejiang University City College, Hangzhou, China,College of Pharmacy, Zhejiang University of Technology, Hangzhou, China
| | - Zhen Gao
- Department of Clinical Medicine & Key Laboratory of Novel Targets and Drug Study for Neural Repair of Zhejiang Province, School of Medicine, Zhejiang University City College, Hangzhou, China
| | - Jingyi Yang
- Department of Clinical Medicine & Key Laboratory of Novel Targets and Drug Study for Neural Repair of Zhejiang Province, School of Medicine, Zhejiang University City College, Hangzhou, China
| | - Yashuang Jiang
- Department of Clinical Medicine & Key Laboratory of Novel Targets and Drug Study for Neural Repair of Zhejiang Province, School of Medicine, Zhejiang University City College, Hangzhou, China
| | - Xile Zhou
- Department of Clinical Medicine & Key Laboratory of Novel Targets and Drug Study for Neural Repair of Zhejiang Province, School of Medicine, Zhejiang University City College, Hangzhou, China,Department of Colorectal Surgery, The First Affiliated Hospital, Zhejiang University, Hangzhou, China
| | - Geng Yang
- Department of Clinical Medicine & Key Laboratory of Novel Targets and Drug Study for Neural Repair of Zhejiang Province, School of Medicine, Zhejiang University City College, Hangzhou, China,For correspondence: Geng Yang
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28
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E3 Ubiquitin Ligase CHIP Inhibits the Interaction between Hsp90β and MAST1 to Repress Radiation Resistance in Non-Small-Cell Lung Cancer Stem Cells. Stem Cells Int 2022; 2022:2760899. [PMID: 36199626 PMCID: PMC9527118 DOI: 10.1155/2022/2760899] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Revised: 08/12/2022] [Accepted: 08/18/2022] [Indexed: 11/24/2022] Open
Abstract
The radiation resistance of cancer stem cells poses a critical obstacle for management of non-small-cell lung cancer (NSCLC). It is interesting to note that E3 ubiquitin ligase CHIP is involved in radiation resistance and stemness phenotypes in NSCLC, while the downstream mechanisms remain elusive. Therefore, this study is aimed at exploring the possible molecular mechanism of E3 ubiquitin ligase CHIP in radiation resistance of NSCLC stem cells. Cancer and adjacent normal tissues of NSCLC patients were collected to determine expression of CHIP, Hsp90β, and MAST1. CD133+ cells were isolated from the NSCLC tissues and the lung cancer cell line A549 by flow cytometric sorting. Accordingly, downregulated CHIP and upregulated Hsp90β and MAST1 were observed in cancer tissues from NSCLC patients and in NSCLC stem cells. Sphere formation assay, colony formation assay, and flow cytometry were performed to examine self-renewal ability, survival, and apoptosis of NSCLC stem cells. An animal model of tumor xenograft was developed in nude mice to observe the tumorigenic ability and radiation resistance of NSCLC stem cells. CHIP overexpression was demonstrated to inhibit the NSCLC stem cell properties and radiation resistance in vitro and in vivo. Mechanistically, CHIP promoted MAST1 ubiquitination by blocking Hsp90β interaction with MAST1, thus inhibiting MAST1 protein stability. Furthermore, CHIP-mediated downregulation of MAST1 protein stability inhibited the NSCLC stem cell properties and radiation resistance. Collectively, CHIP promotes the ubiquitination of MAST1 by blocking the interaction of Hsp90β with MAST1, leading to decreased MAST1 protein stability, which suppressed NSCLC stem cell properties and radiation resistance.
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29
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Guo Q, Liu L, Chen Z, Fan Y, Zhou Y, Yuan Z, Zhang W. Current treatments for non-small cell lung cancer. Front Oncol 2022; 12:945102. [PMID: 36033435 PMCID: PMC9403713 DOI: 10.3389/fonc.2022.945102] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Accepted: 07/06/2022] [Indexed: 12/12/2022] Open
Abstract
Despite improved methods of diagnosis and the development of different treatments, mortality from lung cancer remains surprisingly high. Non-small cell lung cancer (NSCLC) accounts for the large majority of lung cancer cases. Therefore, it is important to review current methods of diagnosis and treatments of NSCLC in the clinic and preclinic. In this review, we describe, as a guide for clinicians, current diagnostic methods and therapies (such as chemotherapy, chemoradiotherapy, targeted therapy, antiangiogenic therapy, immunotherapy, and combination therapy) for NSCLC.
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Affiliation(s)
- Qianqian Guo
- Department of Pharmacy, Affiliated Cancer Hospital of Zhengzhou University & Henan Cancer Hospital, Zhengzhou University, Zhengzhou, China
| | - Liwei Liu
- Department of Pharmacy, First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Zelong Chen
- Affiliated Cancer Hospital of Zhengzhou University & Henan Cancer Hospital, Artificial Intelligence and IoT Smart Medical Engineering Research Center of Henan Province, Zhengzhou, China
| | - Yannan Fan
- Department of Pharmacy, Affiliated Cancer Hospital of Zhengzhou University & Henan Cancer Hospital, Zhengzhou University, Zhengzhou, China
| | - Yang Zhou
- Children’s Hospital Affiliated to Zhengzhou University, Henan Children’s Hospital, Zhengzhou Children’s Hospital, Zhengzhou, China
| | - Ziqiao Yuan
- Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, School of Pharmaceutical Sciences, Zhengzhou University, State Key Laboratory of Esophageal Cancer Prevention and Treatment, Zhengzhou University, Zhengzhou, China
- *Correspondence: Wenzhou Zhang, ; Ziqiao Yuan,
| | - Wenzhou Zhang
- Department of Pharmacy, Affiliated Cancer Hospital of Zhengzhou University & Henan Cancer Hospital, Zhengzhou University, Zhengzhou, China
- *Correspondence: Wenzhou Zhang, ; Ziqiao Yuan,
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30
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Cisplatin-Resistant CD44+ Lung Cancer Cells Are Sensitive to Auger Electrons. Int J Mol Sci 2022; 23:ijms23137131. [PMID: 35806135 PMCID: PMC9266901 DOI: 10.3390/ijms23137131] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Revised: 06/20/2022] [Accepted: 06/23/2022] [Indexed: 02/01/2023] Open
Abstract
Cancer stem cells (CSCs) are resistant to conventional therapy and present a major clinical challenge since they are responsible for the relapse of many cancers, including non-small cell lung cancer (NSCLC). Hence, future successful therapy should also eradicate CSCs. Auger electrons have demonstrated promising therapeutic potential and can induce DNA damage while sparing surrounding cells. Here, we sort primary patient-derived NSCLC cells based on their expression of the CSC-marker CD44 and investigate the effects of cisplatin and a thymidine analog (deoxyuridine) labeled with an Auger electron emitter (125I). We show that the CD44+ populations are more resistant to cisplatin than the CD44− populations. Interestingly, incubation with the thymidine analog 5-[125I]iodo-2′-deoxyuridine ([125I]I-UdR) induces equal DNA damage, G2/M cell cycle arrest, and apoptosis in the CD44− and CD44+ populations. Our results suggest that Auger electron emitters can also eradicate resistant lung cancer CD44+ populations.
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Jiang W, Xie N, Xu C. Characterization of a prognostic model for lung squamous cell carcinoma based on eight stemness index-related genes. BMC Pulm Med 2022; 22:224. [PMID: 35676660 PMCID: PMC9178800 DOI: 10.1186/s12890-022-02011-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Accepted: 05/11/2022] [Indexed: 11/17/2022] Open
Abstract
Background Cancer stem cells (CSCs) are implicated in cancer progression, chemoresistance, and poor prognosis; thus, they may be promising therapeutic targets. In this study, we aimed to investigate the prognostic application of differentially expressed CSC-related genes in lung squamous cell carcinoma (LUSC). Methods The mRNA stemness index (mRNAsi)-related differentially expressed genes (DEGs) in tumors were identified and further categorized by LASSO Cox regression analysis and 1,000-fold cross-validation, followed by the construction of a prognostic score model for risk stratification. The fractions of tumor-infiltrating immune cells and immune checkpoint genes were analyzed in different risk groups. Results We found 404 mRNAsi-related DEGs in LUSC, 77 of which were significantly associated with overall survival. An eight-gene prognostic signature (PPP1R27, TLX2, ANKLE1, TIGD3, AMH, KCNK3, FLRT3, and PPBP) was identified and used to construct a risk score model. The TCGA set was dichotomized into two risk groups that differed significantly (p = 0.00057) in terms of overall survival time (1, 3, 5-year AUC = 0.830, 0.749, and 0.749, respectively). The model performed well in two independent GEO datasets (p = 0.029, 0.033; 1-year AUC = 0747, 0.783; 3-year AUC = 0.746, 0.737; 5-year AUC = 0.706, 0.723). Low-risk patients had markedly increased numbers of CD8+ T cells and M1 macrophages and downregulated immune checkpoint genes compared to the corresponding values in high-risk patients (p < 0.05). Conclusion A stemness-related prognostic model based on eight prognostic genes in LUSC was developed and validated. The results of this study would have prognostic and therapeutic implications. Supplementary Information The online version contains supplementary material available at 10.1186/s12890-022-02011-0.
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Affiliation(s)
- Wenfa Jiang
- Thoracic Surgery Department, Ganzhou People's Hospital, 16 MeiGuan Ave, Zhanggong, 341000, Ganzhou, China
| | - Ning Xie
- Thoracic Surgery Department, Ganzhou People's Hospital, 16 MeiGuan Ave, Zhanggong, 341000, Ganzhou, China
| | - Chenyang Xu
- Thoracic Surgery Department, Ganzhou People's Hospital, 16 MeiGuan Ave, Zhanggong, 341000, Ganzhou, China.
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Hao S, Li F, Jiang P, Gao J. Effect of chronic intermittent hypoxia-induced HIF-1α/ATAD2 expression on lung cancer stemness. Cell Mol Biol Lett 2022; 27:44. [PMID: 35672694 PMCID: PMC9172155 DOI: 10.1186/s11658-022-00345-5] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Accepted: 05/24/2022] [Indexed: 12/13/2022] Open
Abstract
Background Obstructive sleep apnea is associated with increased lung cancer incidence and mortality. Cancer stem cells (CSCs) are characterized by their self-renewing ability, which contributes to metastasis, recurrence, and drug resistance. ATPase family AAA domain-containing protein 2 (ATAD2) induces malignancy in different types of tumors. However, a correlation between ATAD2 expression and CSCs in lung cancer has not yet been reported. Methods The relative messenger RNA (mRNA) levels of ATAD2, CD44, CD133, and hypoxia-inducible factor (HIF)-1α were determined using reverse-transcription quantitative polymerase chain reaction. ATAD2 protein levels were determined using Western blotting. Cell counting kit-8, 5-ethynyl-2′-deoxyuridine (EdU), and colony formation assays were performed to analyze the proliferation of lung cancer cells. Transwell migration and invasion assays were performed to evaluate cell migration and invasion, respectively. Tumor sphere formation analysis was used to determine tumor spheroid capacity. The link between ATAD2 and HIF-1α was verified using a dual-luciferase reporter assay. Immunofluorescence staining was performed to assess mitochondrial reactive oxygen species (mtROS) production. Flow cytometry analysis was conducted to determine the CD133 and CD44 positive cell ratio. Results We evaluated the relative expression of ATAD2 in four lung cancer cell lines (A549, SPC-A1, H460, and H1299 cells) and found increased mRNA and protein levels of ATAD2 in lung cancer samples. ATAD2 overexpression was a poor prognostic factor for lung cancer patients. Loss of ATAD2 reduced lung cancer cell viability and proliferation. Additionally, ATAD2 knockdown repressed lung cancer cell migration, invasion, stem-cell-like properties, and mtROS production. Chronic intermittent hypoxia (CIH)-induced HIF-1α expression significantly activated ATAD2 during lung cancer progression. Conclusions This study found that CIH induced HIF-1α expression, which acts as a transcriptional activator of ATAD2. The present study also suggests a novel mechanism by which the integrity of CIH-triggered HIF-1α/ATAD2 may determine lung cancer aggressiveness via the interplay of mtROS and stemness in lung cancer cells. Supplementary Information The online version contains supplementary material available at 10.1186/s11658-022-00345-5.
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Affiliation(s)
- Shengyu Hao
- Department of Pulmonary Medicine, Zhongshan Hospital, Fudan University, Shanghai, 200032, China
| | - Fan Li
- Department of Nutrition, Zhongshan Hospital, Fudan University, 180 Fenglin Road, Shanghai, 200032, China
| | - Pan Jiang
- Department of Nutrition, Zhongshan Hospital, Fudan University, 180 Fenglin Road, Shanghai, 200032, China.
| | - Jian Gao
- Department of Nutrition, Zhongshan Hospital, Fudan University, 180 Fenglin Road, Shanghai, 200032, China.
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Liu X, Zeng W, Zheng D, Tang M, Zhou W. Let-7c-5p Restrains Cell Growth and Induces Apoptosis of Lung Adenocarcinoma Cells via Targeting ESPL1. Mol Biotechnol 2022; 64:1367-1375. [PMID: 35639278 DOI: 10.1007/s12033-022-00511-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Accepted: 05/11/2022] [Indexed: 12/19/2022]
Abstract
Lung adenocarcinoma (LUAD) is a predominant malignancy, and its high mortality prompts us to incessantly probe the relevant targeted treatment. This work intended to study the molecular mechanism of ESPL1 in LUAD. Bioinformatics analysis was performed for pan-cancer and prognosis analysis as well as target gene prediction. Expression of ESPL1 mRNA and let-7c-5p was determined via qRT-PCR, and western blot was employed to detect protein level of ESPL1. Dual-luciferase reporter gene method verified the interaction between ESPL1 and let-7c-5p. Thereafter, CCK-8, wound healing, Transwell, and flow cytometry assays were utilized to investigate proliferation, migration, and apoptosis of LUAD cells. The results revealed that ESPL1 was upregulated in LUAD, which was associated with poor prognosis. Overexpressed ESPL1 promoted LUAD cells to invade, proliferate, and migrate. Furthermore, ESPL1 was a target gene of let-7c-5p. Let-7c-5p was downregulated in LUAD cells, and played a suppressive role in LUAD malignant development, while reversed by ESPL1. Taken together, it was posited that let-7c-5p/ESPL1 may be underlying therapeutic targets of LUAD.
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Affiliation(s)
- Xiang Liu
- Department of Thoracic Surgery, Hengyang Medical School, The Second Affiliated Hospital, University of South China, Hengyang, 421001, Hunan Province, China
| | - Wei Zeng
- Department of Thoracic Surgery, Hengyang Medical School, The Second Affiliated Hospital, University of South China, Hengyang, 421001, Hunan Province, China
| | - Dayang Zheng
- Department of Thoracic Surgery, Hengyang Medical School, The Second Affiliated Hospital, University of South China, Hengyang, 421001, Hunan Province, China
| | - Min Tang
- Department of Thoracic Surgery, Hengyang Medical School, The Second Affiliated Hospital, University of South China, Hengyang, 421001, Hunan Province, China
| | - Wangyan Zhou
- Department of Medical Record, Hengyang Medical School, The First Affiliated Hospital, University of South China, Chuanshan Avenue 69, Hengyang, 421001, Hunan Province, China.
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Yuan H, Yu Q, Pang J, Chen Y, Sheng M, Tang W. The Value of the Stemness Index in Ovarian Cancer Prognosis. Genes (Basel) 2022; 13:genes13060993. [PMID: 35741755 PMCID: PMC9222264 DOI: 10.3390/genes13060993] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Revised: 05/21/2022] [Accepted: 05/25/2022] [Indexed: 11/16/2022] Open
Abstract
Ovarian cancer (OC) is one of the most common gynecological malignancies. It is associated with a difficult diagnosis and poor prognosis. Our study aimed to analyze tumor stemness to determine the prognosis feature of patients with OC. At this job, we selected the gene expression and the clinical profiles of patients with OC in the TCGA database. We calculated the stemness index of each patient using the one-class logistic regression (OCLR) algorithm and performed correlation analysis with immune infiltration. We used consensus clustering methods to classify OC patients into different stemness subtypes and compared the differences in immune infiltration between them. Finally, we established a prognostic signature by Cox and LASSO regression analysis. We found a significant negative correlation between a high stemness index and immune score. Pathway analysis indicated that the differentially expressed genes (DEGs) from the low- and high-mRNAsi groups were enriched in multiple functions and pathways, such as protein digestion and absorption, the PI3K-Akt signaling pathway, and the TGF-β signaling pathway. By consensus cluster analysis, patients with OC were split into two stemness subtypes, with subtype II having a better prognosis and higher immune infiltration. Furthermore, we identified 11 key genes to construct the prognostic signature for patients with OC. Among these genes, the expression levels of nine, including SFRP2, MFAP4, CCDC80, COL16A1, DUSP1, VSTM2L, TGFBI, PXDN, and GAS1, were increased in the high-risk group. The analysis of the KM and ROC curves indicated that this prognostic signature had a great survival prediction ability and could independently predict the prognosis for patients with OC. We established a stemness index-related risk prognostic module for OC, which has prognostic-independent capabilities and is expected to improve the diagnosis and treatment of patients with OC.
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Ren C, Li J, Zhou Y, Zhang S, Wang Q. Typical tumor immune microenvironment status determine prognosis in lung adenocarcinoma. Transl Oncol 2022; 18:101367. [PMID: 35176624 PMCID: PMC8851380 DOI: 10.1016/j.tranon.2022.101367] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Revised: 01/21/2022] [Accepted: 02/07/2022] [Indexed: 12/13/2022] Open
Abstract
Immune cells infiltration level in lung adenocarcinoma immune microenvironment were quantified and compared. Three distinct tumor immune microenvironment subtypes were consistent with cancer immunity cycle in cancer dynamic development. Immune infiltration status of three subtypes were correlated with significant mutated genes, copy number variation and cancer stemness Prognostic biomarker lung adenocarcinoma immune microenvironment score model was constructed to assess immune infiltration status, evaluate immunotherapy response, and predict patient prognosis.
Background Immune cells, vital components of tumor microenvironment, regulate tumor survival and progression. Lung adenocarcinoma (LUAD), the tumor with the highest mortality rate worldwide, reconstitutes tumor immune microenvironment (TIME) to avoid immune destruction. Data have shown that TIME influences LUAD prognosis and predicts immunotherapeutic efficacy. The related information about the role of TIME's characteristics in LUAD is limited. Methods We performed unsupervised consensus clustering via machine-learning techniques to identify TIME clusters among 1906 patients and gathered survival data. The characteristics of TIME clusters of LUAD were visualized by multi-omics analysis, pseudo-time dynamic analysis, and enrichment analysis. TIME score model was constructed by principal component analysis. Comprehensive analysis and validation were conducted to test the prognostic efficacy and immunotherapeutic response of TIME score. Results TIME clusters (A, B and C) were constructed and exhibited different immune infiltration states. Multi-omics analyses included significant mutated genes (SMG), copy number variation (CNV) and cancer stemness that were significantly different among the three clusters. TIME cluster A had a lower SMG, lower CNV, and lower stemness but a higher immune infiltration level compared to TIME clusters B and C. TIME score showed that patients in low TIME score group had higher overall survival rates, higher immune infiltration level and high expression of immune checkpoints. In validation cohorts, low TIME score subgroup had better drug sensitivity and favorable immunotherapeutic response. Conclusion We constructed a stable model of LUAD immune microenvironment characteristics that may improve the prognostic accuracy of patients, provide improved explanations of LUAD responses to immunotherapy, and provide new strategies for LUAD treatment.
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Affiliation(s)
- Caixia Ren
- Department of Respiratory Medicine, The Second Hospital of Dalian Medical University, Dalian, 116023, China.
| | - Jinyu Li
- Department of Breast Oncology, The Second Hospital of Dalian Medical University, Dalian, Liaoning, 116023, China.
| | - Yang Zhou
- Liaoning Clinical Research Center for Lung Cancer,The Second Hospital of Dalian Medical University, Dalian, 116023, China.
| | - Shuyu Zhang
- China National Nuclear Corporation 416 Hospital, The Second Affiliated Hospital of Chengdu Medical College, Chengdu 610051, China.
| | - Qi Wang
- Department of Respiratory Medicine, The Second Hospital of Dalian Medical University, Dalian, 116023, China.
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Li M, Che N, Feng Y, Liu X, Piao L, Xuan Y, Jin Y. B7-H4 expression promotes non-small cell lung cancer progression via AMPK/mTOR signaling. Exp Mol Pathol 2022; 125:104755. [DOI: 10.1016/j.yexmp.2022.104755] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Revised: 10/15/2021] [Accepted: 03/03/2022] [Indexed: 01/10/2023]
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Rong G, Pan Z, Ding M, Wang L. RNF168 suppresses the cancer stem cell-like traits of nonsmall cell lung cancer cells by mediating RhoC ubiquitination. ENVIRONMENTAL TOXICOLOGY 2022; 37:603-611. [PMID: 34873829 DOI: 10.1002/tox.23428] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Revised: 11/21/2021] [Accepted: 11/27/2021] [Indexed: 06/13/2023]
Abstract
The critical roles of E3 ubiquitin ligase RNF168 have been widely revealed in various tumors, however, its roles in lung cancer progression are still confusing. Here, we found that RNF168 expression is positively correlated with the overall survival, first-progression survival, and postprogression survival of lung adenocarcinoma, but not correlated with these survivals of squamous cell carcinoma of lung. Furthermore, it was shown that RNF168 mRNA expression is lowly expressed in lung adenocarcinoma tissues, but highly expressed in squamous cell carcinoma of lung. Functional experiments indicated that RNF168 overexpression significantly suppressed the cancer stem cell (CSC)-like traits of nonsmall cell lung cancer (NSCLC) cells, as characterized by the attenuation of sphere-formation ability, ALDH activity, and the expression of lung CSC markers. Mechanistic studies demonstrated that RNF168 facilitated the ubiquitination of RhoC, which had been considered as a fascinating target for CSCs, and thus promoted RhoC protein degradation. Notably, RNF168 failed to affect the mRNA expression of RhoC and overexpression of RhoC rescued the inhibitory effects of RNF168 overexpression on the CSC-like traits of NSCLC cells. Therefore, this study revealed RNF168 as a novel regulator of RhoC protein in NSCLC cells, this RNF168/RhoC regulatory axis might be a potential target for NSCLC treatment.
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Affiliation(s)
- Guoxiang Rong
- Department of Thoracic Surgery, The People's Hospital of Danyang, Affiliated Danyang Hospital of Nantong University, Danyang, Jiangsu Province, 212300, China
| | - Zhongjun Pan
- Department of Thoracic Surgery, The People's Hospital of Danyang, Affiliated Danyang Hospital of Nantong University, Danyang, Jiangsu Province, 212300, China
| | - Ming Ding
- Department of Thoracic Surgery, The People's Hospital of Danyang, Affiliated Danyang Hospital of Nantong University, Danyang, Jiangsu Province, 212300, China
| | - Lihui Wang
- Clinical Laboratory, The People's Hospital of Danyang, Affiliated Danyang Hospital of Nantong University, Danyang, Jiangsu Province, 212300, China
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Wang SY, Hu QC, Wu T, Xia J, Tao XA, Cheng B. Abnormal lipid synthesis as a therapeutic target for cancer stem cells. World J Stem Cells 2022; 14:146-162. [PMID: 35432735 PMCID: PMC8963380 DOI: 10.4252/wjsc.v14.i2.146] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Revised: 05/19/2021] [Accepted: 02/20/2022] [Indexed: 02/06/2023] Open
Abstract
Cancer stem cells (CSCs) comprise a subpopulation of cancer cells with stem cell properties, which exhibit the characteristics of high tumorigenicity, self-renewal, and tumor initiation and are associated with the occurrence, metastasis, therapy resistance, and relapse of cancer. Compared with differentiated cells, CSCs have unique metabolic characteristics, and metabolic reprogramming contributes to the self-renewal and maintenance of stem cells. It has been reported that CSCs are highly dependent on lipid metabolism to maintain stemness and satisfy the requirements of biosynthesis and energy metabolism. In this review, we demonstrate that lipid anabolism alterations promote the survival of CSCs, including de novo lipogenesis, lipid desaturation, and cholesterol synthesis. In addition, we also emphasize the molecular mechanism underlying the relationship between lipid synthesis and stem cell survival, the signal trans-duction pathways involved, and the application prospect of lipid synthesis reprogramming in CSC therapy. It is demonstrated that the dependence on lipid synthesis makes targeting of lipid synthesis metabolism a promising therapeutic strategy for eliminating CSCs. Targeting key molecules in lipid synthesis will play an important role in anti-CSC therapy.
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Affiliation(s)
- Si-Yu Wang
- Department of Oral Medicine, Hospital of Stomatology, Sun Yat-sen University, Guangzhou 510000, Guangdong Province, China
- Guangdong Provincial Key Laboratory of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou 510000, Guangdong Province, China
| | - Qin-Chao Hu
- Department of Oral Medicine, Hospital of Stomatology, Sun Yat-sen University, Guangzhou 510000, Guangdong Province, China
- Guangdong Provincial Key Laboratory of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou 510000, Guangdong Province, China
| | - Tong Wu
- Department of Oral Medicine, Hospital of Stomatology, Sun Yat-sen University, Guangzhou 510000, Guangdong Province, China
- Guangdong Provincial Key Laboratory of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou 510000, Guangdong Province, China
| | - Juan Xia
- Department of Oral Medicine, Hospital of Stomatology, Sun Yat-sen University, Guangzhou 510000, Guangdong Province, China
- Guangdong Provincial Key Laboratory of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou 510000, Guangdong Province, China
| | - Xiao-An Tao
- Department of Oral Medicine, Hospital of Stomatology, Sun Yat-sen University, Guangzhou 510000, Guangdong Province, China
- Guangdong Provincial Key Laboratory of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou 510000, Guangdong Province, China
| | - Bin Cheng
- Department of Oral Medicine, Hospital of Stomatology, Sun Yat-sen University, Guangzhou 510000, Guangdong Province, China
- Guangdong Provincial Key Laboratory of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou 510000, Guangdong Province, China
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Bryukhovetskiy I. Cell‑based immunotherapy of glioblastoma multiforme (Review). Oncol Lett 2022; 23:133. [PMID: 35251352 PMCID: PMC8895466 DOI: 10.3892/ol.2022.13253] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Accepted: 02/10/2022] [Indexed: 12/02/2022] Open
Abstract
Glioblastoma multiforme (GBM) is the most aggressive and lethal primary glial brain tumor. It has an unfavorable prognosis and relatively ineffective treatment protocols, with the median survival of patients being ~15 months. Tumor resistance to treatment is associated with its cancer stem cells (CSCs). At present, there is no medication or technologies that have the ability to completely eradicate CSCs, and immunotherapy (IT) is only able to prolong the patient's life. The present review aimed to investigate systemic solutions for issues associated with immunosuppression, such as ineffective IT and the creation of optimal conditions for CSCs to fulfill their lethal potential. The present review also investigated the main methods involved in local immunosuppression treatment, and highlighted the associated disadvantages. In addition, novel treatment options and targets for the elimination and regulation of CSCs with adaptive and active IT are discussed. Antagonists of TGF-β inhibitors, immune checkpoints and other targeted medication are also summarized. The role of normal hematopoietic stem cells (HSCs) in the mechanisms underlying systemic immune suppression development in cases of GBM is analyzed, and the potential reprogramming of HSCs during their interaction with cancer cells is discussed. Moreover, the present review emphasizes the importance of the aforementioned interactions in the development of immune tolerance and the inactivation of the immune system in neoplastic processes. The possibility of solving the problem of systemic immunosuppression during transplantation of donor HSCs is discussed.
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Affiliation(s)
- Igor Bryukhovetskiy
- Medical Center, School of Medicine, Far Eastern Federal University, Vladivostok 690091, Russia
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40
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Pan Z, Liu H, Chen J. [Lung Cancer Stem-like Cells and Drug Resistance]. ZHONGGUO FEI AI ZA ZHI = CHINESE JOURNAL OF LUNG CANCER 2022; 25:111-117. [PMID: 35224964 PMCID: PMC8913289 DOI: 10.3779/j.issn.1009-3419.2022.102.02] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Lung cancer remains the leading cause of cancer-related death world-wide. Therapy resistance and relapse are considered major reasons contributing to the poor survival rates of lung cancer. Accumulated evidences have demonstrated that a small subpopulation of stem-like cells existed within lung cancer tissues and cell lines, possessing the abilities of self-renewal, multipotent differentiation and unlimited proliferation. These lung cancer stem-like cells (LCSCs) can generate tumors with high effeciency in vivo, survive cytotoxic therapies, and eventually lead to therapy resistance and recurrence. In this review, we would like to present recent knowledges on LCSCs, including the origins where they come from, the molecular features to identify them, and key mechanisms for them to survive and develop resistance, in order to provide a better view for targeting them in future clinic.
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Affiliation(s)
- Zhenhua Pan
- Tianjin Key Laboratory of Lung Cancer Metastasis and Tumor Microenvironment, Tianjin Lung Cancer Institute, Tianjin 300052, China
| | - Hongyu Liu
- Tianjin Key Laboratory of Lung Cancer Metastasis and Tumor Microenvironment, Tianjin Lung Cancer Institute, Tianjin 300052, China
| | - Jun Chen
- Tianjin Key Laboratory of Lung Cancer Metastasis and Tumor Microenvironment, Tianjin Lung Cancer Institute, Tianjin 300052, China.,Department of Lung Cancer Surgery, Tianjin Medical University General Hospital, Tianjin 300052, China
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[Pattern of Recurrence and Metastasis after Radical Resection of
Non-small Cell Lung Cancer]. ZHONGGUO FEI AI ZA ZHI = CHINESE JOURNAL OF LUNG CANCER 2022; 25:26-33. [PMID: 35078282 PMCID: PMC8796126 DOI: 10.3779/j.issn.1009-3419.2021.102.50] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
The rate of recurrence and metastasis of non-small cell lung cancer after radical resection is still very high. The risk factors for recurrence and metastasis have been extensively studied, but the dynamic pattern of postoperative recurrence hazard over time is relatively lacking. The dynamic recurrence hazard rate curve is applied to describe the rate of recurrence at any point time among the "at-risk" patients. In this article, by reviewing the previous literature, the characteristics of the dynamic recurrence and metastasis pattern after radical resection of non-small cell lung cancer and the clinical factors affecting the recurrence and metastasis pattern are summarized, in order to screen out specific populations with high recurrence risk and give them personalized follow-up strategy and diagnosis and treatment.
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Yang MH, Li B, Chang KJ. Notch pathway inhibition mediated by arsenic trioxide depletes tumor initiating cells in small cell lung cancer. Mol Biol Rep 2022; 49:2245-2253. [PMID: 35028858 DOI: 10.1007/s11033-021-07046-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Accepted: 12/02/2021] [Indexed: 11/27/2022]
Abstract
BACKGROUND Small cell lung cancer (SCLC) is the most malignant type of lung cancer. We previously reported that arsenic trioxide (As2O3) inhibited tumor initiating cells (TICs) of SCLC in vitro. In the present study, we aimed to identify the above effect in vivo and shed light on its underlying mechanism. METHODS AND RESULTS TICs were enriched by culturing human SCLC cell line as sphere cells in specified serum-free medium. The expression of stem cell markers, CD133 and CD44, and the in vivo tumorigenicity of both TICs and their parental cells were examined. To demonstrate the inhibitory effect of As2O3 on TICs, cell proliferation, clone formation and sphere formation assays were performed. CD133 and Notch pathway-related factors were also measured after As2O3 treatment. Xenograft models were established by injecting TICs into nude mice. Mice were treated with As2O3 for 14 days. Afterwards, the tumor volume and the expression of CD133 and Notch1 were evaluated. TICs obtained by the above-mentioned method showed elevated levels of stem cell markers and increased tumorigenicity compared with their parental cells. As2O3 treatment largely inhibited TICs proliferation, sphere formation and clonogenic capacity. As2O3 also reduced the expression of CD133 and down-regulated Notch pathway in TICs. Furthermore, As2O3 potently inhibited tumor growth, decreased the expression of CD133 and down-regulated Notch1 in tumors originating from TICs. CONCLUSIONS Our data demonstrate that As2O3 has a remarkable inhibitory effect on TICs of SCLC both in vitro and in vivo, and the mechanism might involve the down-regulation of Notch pathway.
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Affiliation(s)
- Meng-Hang Yang
- Department of Oncology, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai, 200433, China
| | - Bing Li
- Department of Respiratory and Critical Care Medicine, Shanghai Fourth People's Hospital, School of Medicine, Tongji University, Shanghai, 200434, China. .,Department of Respiratory and Critical Care Medicine, Changzheng Hospital, Naval Medical University, Shanghai, 200003, China.
| | - Ke-Jie Chang
- Department of Thoracic Oncology, Cancer Center of the Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, 519000, Guangdong, China.
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Li M, Wang X, Wang Y, Bao S, Chang Q, Liu L, Zhang S, Sun L. Strategies for Remodeling the Tumor Microenvironment Using Active Ingredients of Ginseng-A Promising Approach for Cancer Therapy. Front Pharmacol 2022; 12:797634. [PMID: 35002732 PMCID: PMC8727883 DOI: 10.3389/fphar.2021.797634] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Accepted: 12/06/2021] [Indexed: 12/21/2022] Open
Abstract
The tumor microenvironment (TME) plays a key role in promoting the initiation and progression of tumors, leading to chemoradiotherapy resistance and immunotherapy failure. Targeting of the TME is a novel anti-tumor therapeutic approach and is currently a focus of anti-tumor research. Panax ginseng C. A. Meyer (ginseng), an ingredient of well-known traditional Asia medicines, exerts beneficial anti-tumor effects and can regulate the TME. Here, we present a systematic review that describes the current status of research efforts to elucidate the functions and mechanisms of ginseng active components (including ginsenosides and ginseng polysaccharides) for achieving TME regulation. Ginsenosides have variety effects on TME, such as Rg3, Rd and Rk3 can inhibit tumor angiogenesis; Rg3, Rh2 and M4 can regulate the function of immune cells; Rg3, Rd and Rg5 can restrain the stemness of cancer stem cells. Ginseng polysaccharides (such as red ginseng acidic polysaccharides and polysaccharides extracted from ginseng berry and ginseng leaves) can regulate TME mainly by stimulating immune cells. In addition, we propose a potential mechanistic link between ginseng-associated restoration of gut microbiota and the tumor immune microenvironment. Finally, we describe recent advances for improving ginseng efficacy, including the development of a nano-drug delivery system. Taken together, this review provides novel perspectives on potential applications for ginseng active ingredients as anti-cancer adjuvants that achieve anti-cancer effects by reshaping the tumor microenvironment.
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Affiliation(s)
- Mo Li
- Department of Radiotherapy, The Second Hospital of Jilin University, Changchun, China.,Department of Thyroid Surgery, The Second Hospital of Jilin University, Changchun, China
| | - Xin Wang
- Department of Neurology, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Ying Wang
- Department of Breast Surgery, The Second Hospital of Jilin University, Changchun, China
| | - Shunchao Bao
- Department of Radiotherapy, The Second Hospital of Jilin University, Changchun, China
| | - Qing Chang
- Department of Radiotherapy, The Second Hospital of Jilin University, Changchun, China
| | - Linlin Liu
- Department of Radiotherapy, The Second Hospital of Jilin University, Changchun, China
| | - Shuai Zhang
- Jilin Ginseng Academy, Changchun University of Chinese Medicine, Changchun, China
| | - Liwei Sun
- Research Center of Traditional Chinese Medicine, The Affiliated Hospital to Changchun University of Chinese Medicine, Changchun, China
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Agrawal A, Bhattacharya S. Cutting-edge Nanotechnological Approaches for Lung Cancer Therapy. Curr Drug Res Rev 2022; 14:171-187. [PMID: 35440332 DOI: 10.2174/2589977514666220418085658] [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: 08/26/2021] [Revised: 01/17/2022] [Accepted: 02/22/2022] [Indexed: 06/14/2023]
Abstract
Lung cancer is the second leading cancer with a high rate of mortality. It can be treated using different intervention techniques such as chemotherapy, radiation therapy, surgical removal, and photodynamic therapy. All of these interventions lack specificity, implying that it harms the normal cells adjacent to the infected ones. Nanotechnology provides a promising solution that increases the bioavailability of anticancer drugs at the tumor site with reduced toxicity and improved therapeutic efficacy. Nanotechnology also improves the way lung cancer is diagnosed and treated. Various nanocarriers like liposomes, polymeric nanoparticles, magnetic nanoparticles, and different theranostic approaches are already approved for medical use, while various are under clinical and preclinical stages. This review article covers the details about lung cancer, types of overexpressed receptors, and cutting-edge nanocarriers used for treating lung cancer at its specific target.
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Affiliation(s)
- Amaiyya Agrawal
- Department of Pharmaceutics, School of Pharmacy & Technology Management, SVKM\'S NMIMS Deemed-to-be University, Shirpur 425405, Maharashtra, India
| | - Sankha Bhattacharya
- Department of Pharmaceutics, School of Pharmacy & Technology Management, SVKM\'S NMIMS Deemed-to-be University, Shirpur 425405, Maharashtra, India
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Chen F, Liu J, Song X, DuCote TJ, Byrd AL, Wang C, Brainson CF. EZH2 inhibition confers PIK3CA-driven lung tumors enhanced sensitivity to PI3K inhibition. Cancer Lett 2022; 524:151-160. [PMID: 34655667 PMCID: PMC8743034 DOI: 10.1016/j.canlet.2021.10.010] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Revised: 09/16/2021] [Accepted: 10/06/2021] [Indexed: 01/03/2023]
Abstract
Members of the PI3K signaling pathway, especially PIK3CA, the gene encoding the catalytic subunit of the PI3K complex, are highly mutated and amplified in various cancer types, including non-small cell lung cancer. Although PI3K inhibitors have been used in clinics for follicular lymphoma and chronic lymphocytic leukemia, no agents targeting PI3K aberrations in lung cancer have been approved by the FDA so far. In this study, we observed that PIK3CA-E545K, the most common mutation in lung cancer, harbored a modest induction of stem-like properties in lung epithelial cells, and drove development of adenocarcinoma autochthonously when paired with p53 loss in a murine mouse model. We also found that PIK3CA-mutant of amplified lung cancer cells were sensitive to EZH2 inhibition. EZH2 inhibition synergized with PI3K inhibition in human cancer cells in vitro and worked together efficiently in vivo. Mechanistically, EZH2 inhibition cooperated with PI3K inhibition to produce a more potent suppression of phospho-AKT downstream of PI3K. This study suggests a promising combination therapy to combat lung cancers with PIK3CA mutation or amplification. Both copanlisib, the PI3K inhibitor, and tazemetostat, the EZH2 inhibitor, are FDA-approved, which should enhance the clinical translation of this work.
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Affiliation(s)
- Fan Chen
- Department of Toxicology and Cancer Biology, University of Kentucky, Lexington, KY, 40536, USA
| | - Jinpeng Liu
- Markey Cancer Center, University of Kentucky, Lexington, KY, 40536, USA,Department of Internal Medicine, University of Kentucky, Lexington, KY, 40536, USA
| | - Xiulong Song
- Department of Toxicology and Cancer Biology, University of Kentucky, Lexington, KY, 40536, USA
| | - Tanner J. DuCote
- Department of Toxicology and Cancer Biology, University of Kentucky, Lexington, KY, 40536, USA
| | - Aria L. Byrd
- Department of Toxicology and Cancer Biology, University of Kentucky, Lexington, KY, 40536, USA
| | - Chi Wang
- Markey Cancer Center, University of Kentucky, Lexington, KY, 40536, USA,Department of Internal Medicine, University of Kentucky, Lexington, KY, 40536, USA
| | - Christine F. Brainson
- Department of Toxicology and Cancer Biology, University of Kentucky, Lexington, KY, 40536, USA,Markey Cancer Center, University of Kentucky, Lexington, KY, 40536, USA,Corresponding author. Department of Toxicology and Cancer Biology Markey Cancer Center University of Kentucky, 1095 VA Drive, HSRB 456, Lexington, KY, 40536, USA.
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Behrend SJ, Giotopoulou GA, Spella M, Stathopoulos GT. A role for club cells in smoking-associated lung adenocarcinoma. Eur Respir Rev 2021; 30:30/162/210122. [PMID: 34670807 PMCID: PMC9488964 DOI: 10.1183/16000617.0122-2021] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2021] [Accepted: 08/05/2021] [Indexed: 01/02/2023] Open
Abstract
The cellular origin of lung adenocarcinoma remains a focus of intense research efforts. The marked cellular heterogeneity and plasticity of the lungs, as well as the vast variety of molecular subtypes of lung adenocarcinomas perplex the field and account for the extensive variability of experimental results. While most experts would agree on the cellular origins of other types of thoracic tumours, great controversy exists on the tumour-initiating cells of lung adenocarcinoma, since this histologic subtype of lung cancer arises in the distal pulmonary regions where airways and alveoli converge, occurs in smokers as well as nonsmokers, is likely caused by various environmental agents, and is marked by vast molecular and pathologic heterogeneity. Alveolar type II, club, and their variant cells have all been implicated in lung adenocarcinoma progeny and the lineage hierarchies in the distal lung remain disputed. Here we review the relevant literature in this rapidly expanding field, including results from mouse models and human studies. In addition, we present a case for club cells as cells of origin of lung adenocarcinomas that arise in smokers. Multiple lung epithelial cells are targets of carcinogenic hits. Club cells are such cells that can metabolically activate tobacco pre-carcinogens, being thus positioned as cells of origin of lung adenocarcinomas in smokers.https://bit.ly/3iOshcy
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Affiliation(s)
- Sabine J Behrend
- Comprehensive Pneumology Center (CPC) and Institute for Lung Biology and Disease (iLBD); Helmholtz Center Munich-German Research Center for Environmental Health (HMGU) and Ludwig-Maximilian-University (LMU) Munich, Munich, Germany .,German Center for Lung Research (DZL), Giessen, Germany
| | - Georgia A Giotopoulou
- Comprehensive Pneumology Center (CPC) and Institute for Lung Biology and Disease (iLBD); Helmholtz Center Munich-German Research Center for Environmental Health (HMGU) and Ludwig-Maximilian-University (LMU) Munich, Munich, Germany.,German Center for Lung Research (DZL), Giessen, Germany
| | - Magda Spella
- Laboratory for Molecular Respiratory Carcinogenesis, Dept of Physiology, Faculty of Medicine, University of Patras, Patras, Greece
| | - Georgios T Stathopoulos
- Comprehensive Pneumology Center (CPC) and Institute for Lung Biology and Disease (iLBD); Helmholtz Center Munich-German Research Center for Environmental Health (HMGU) and Ludwig-Maximilian-University (LMU) Munich, Munich, Germany.,German Center for Lung Research (DZL), Giessen, Germany
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Meisaprow P, Aksorn N, Vinayanuwattikun C, Chanvorachote P, Sukprasansap M. Caffeine Induces G0/G1 Cell Cycle Arrest and Inhibits Migration through Integrin αv, β3, and FAK/Akt/c-Myc Signaling Pathway. Molecules 2021; 26:7659. [PMID: 34946741 PMCID: PMC8706725 DOI: 10.3390/molecules26247659] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Revised: 12/14/2021] [Accepted: 12/15/2021] [Indexed: 12/12/2022] Open
Abstract
Lung cancer is recognized as a major cause of mortality worldwide owing to its metastatic activity. Given the lack of solid information regarding the possible effects of caffeine, one of the most consumed natural psychoactive substances, on molecular signaling pathways implicated in the aggressive behavior of lung cancer, our study aimed to evaluate the effect and mechanism of caffeine on metastasis-related mechanisms. The results revealed that caffeine treatment at concentrations of 0-500 µM caused no direct cytotoxic effects on NCI-H23 cells. Treatment of cells with caffeine showed good potential to inhibit cell proliferation at 48 h and induced significant cell cycle arrest at the G0/G1 phase. Concerning metastasis, caffeine was shown to reduce filopodia formation, inhibit migration and invasion capability, and reduce the ability of cancer cells to survive and grow in an anchorage-independent manner. Moreover, caffeine could attenuate the formation of 3D tumor spheroids in cancer stem cell (CSC)-enriched populations. With regard to mechanisms, we found that caffeine significantly altered the integrin pattern of the treated cells and caused the downregulation of metastasis-associated integrins, namely, integrins αv and β3. Subsequently, the downstream signals, including protein signaling and transcription factors, namely, phosphorylated focal adhesion kinase (p-FAK), phosphorylated protein kinase B (p-Akt), cell division cycle 42 (Cdc42), and c-Myc, were significantly decreased in caffeine-exposed cells. Taken together, our novel data on caffeine-inhibiting mechanism in relation to metastasis in lung cancer could provide insights into the impact of caffeine intake on human diseases and conditions.
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Affiliation(s)
- Pichitchai Meisaprow
- Graduate Student in Master of Science Program in Nutrition, Faculty of Medicine Ramathibodi Hospital and Institute of Nutrition, Mahidol University, Bangkok 10400, Thailand;
| | - Nithikoon Aksorn
- Department of Clinical Pathology, Faculty of Medicine Vajira Hospital, Navamindradhiraj University, Bangkok 10300, Thailand;
| | - Chanida Vinayanuwattikun
- Division of Medical Oncology, Department of Medicine, Faculty of Medicine, Chulalongkorn University, Bangkok 10330, Thailand;
| | - Pithi Chanvorachote
- Cell-Based Drug and Health Product Development Research Unit, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok 10330, Thailand
- Department of Pharmacology and Physiology, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok 10330, Thailand
| | - Monruedee Sukprasansap
- Food Toxicology Unit, Institute of Nutrition, Mahidol University, Salaya Campus, Nakhon Pathom 73170, Thailand
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Chen Q, Zheng Y, Chen X, Ge P, Wang P, Wu B. Upregulation of miR-216a-5p by Lentinan Targeted Inhibition of JAK2/STAT3 Signaling Pathway to Reduce Lung Adenocarcinoma Cell Stemness, Promote Apoptosis, and Slow Down the Lung Adenocarcinoma Mechanisms. Front Oncol 2021; 11:778096. [PMID: 34900727 PMCID: PMC8656221 DOI: 10.3389/fonc.2021.778096] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Accepted: 10/26/2021] [Indexed: 12/16/2022] Open
Abstract
To investigate the effect of Lentinan (LNT) on lung adenocarcinoma (LUAD) cell stemness and its mechanism. In this study, we founded that LNT significantly reduce the cell proliferation, activity, migration, invasion, and stemness of LUAD cells, and promote their apoptosis compared with the control group in vitro. Moreover, LNT significantly inhibited the volume and weight of tumors of nude mice in vivo. At the same time, LNT can significantly up-regulate miR-216a-5p levels and reduce the protein expression of phospho-JAK2 (Y1007/1008) and phospho-STAT3 (Tyr705), thereby inhibiting the JAK2/STAT3 signaling pathway. Interfering with miR-216a-5p expression and activating the JAK2/STAT3 signaling pathway can significantly reverse LNT inhibitory effects on LUAD. Collectively, LNT can inhibit the JAK2/STAT3 signaling pathway by up-regulating miR-216a-5p, reducing stemness, and promoting LUAD cells apoptosis, then slow down LUAD occurrence and development, providing concepts and experimental foundation treating patients with LUAD.
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Affiliation(s)
- Quan Chen
- Department of Thoracic Surgery, Hospital Affiliated 5 to Nantong University (Taizhou People's Hospital), Taizhou, China
| | - Yiming Zheng
- Department of Thoracic Surgery, Hospital Affiliated 5 to Nantong University (Taizhou People's Hospital), Taizhou, China
| | - Xia Chen
- Department of Thoracic Surgery, Hospital Affiliated 5 to Nantong University (Taizhou People's Hospital), Taizhou, China
| | - Pengfei Ge
- Department of Thoracic Surgery, Hospital Affiliated 5 to Nantong University (Taizhou People's Hospital), Taizhou, China
| | - Pengcheng Wang
- Department of Thoracic Surgery, Hospital Affiliated 5 to Nantong University (Taizhou People's Hospital), Taizhou, China
| | - Bingbing Wu
- Department of Thoracic Surgery, Hospital Affiliated 5 to Nantong University (Taizhou People's Hospital), Taizhou, China
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Phiboonchaiyanan PP, Puthongking P, Chawjarean V, Harikarnpakdee S, Sukprasansap M, Chanvorachote P, Priprem A, Govitrapong P. Melatonin and its derivative disrupt cancer stem-like phenotypes of lung cancer cells via AKT downregulation. Clin Exp Pharmacol Physiol 2021; 48:1712-1723. [PMID: 34396568 DOI: 10.1111/1440-1681.13572] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Revised: 07/28/2021] [Accepted: 08/11/2021] [Indexed: 12/27/2022]
Abstract
Cancer stem cells (CSCs), a small subpopulation of tumour cells, have properties of self-renewal and multipotency, which drive cancer progression and resistance to current treatments. Compounds potentially targeting CSCs have been recently developed. This study shows how melatonin, an endogenous hormone synthesised by the pineal gland, and its derivative suppress CSC-like phenotypes of human non-small cell lung cancer (NSCLC) cell lines, H460, H23, and A549. The effects of MLT and its derivative, acetyl melatonin (ACT), on CSC-like phenotypes were investigated using assays for anchorage-independent growth, three-dimensional spheroid formation, scratch wound healing ability, and CSC marker and upstream protein signalling expression. Enriched CSC spheroids were used to confirm the effect of both compounds on lung cancer cells. MLT and ACT inhibited CSC-like behaviours by suppression of colony and spheroid formation in NSCLC cell lines. Their effects on spheroid formation were confirmed in CSC-enriched H460 cells. CSC markers, CD133 and ALDH1A1, were depleted by both compounds. The behaviour and factors associated to epithelial-mesenchymal transition, as indicated by cell migration and the protein vimentin, were also decreased by MLT and ACT. Mechanistically, MLT and ACT decreased the expression of stemness proteins Oct-4, Nanog, and β-catenin by reducing active AKT (phosphorylated AKT). Suppression of the AKT pathway was not mediated through melatonin receptors. This study demonstrates a novel role, and its underlying mechanism, for MLT and its derivative ACT in suppression of CSC-like phenotypes in NSCLC cells, indicating that they are potential candidates for lung cancer treatment.
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Affiliation(s)
- Preeyaporn Plaimee Phiboonchaiyanan
- College of Pharmacy, Rangsit University, Pathumthani, Thailand
- Cosmeceutical Research, Development and Testing Center, College of Pharmacy, Rangsit University, Pathum Thani, Thailand
| | - Ploenthip Puthongking
- Melatonin Research Group, Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen, Thailand
| | - Verisa Chawjarean
- College of Pharmacy, Rangsit University, Pathumthani, Thailand
- Cosmeceutical Research, Development and Testing Center, College of Pharmacy, Rangsit University, Pathum Thani, Thailand
| | - Saraporn Harikarnpakdee
- College of Pharmacy, Rangsit University, Pathumthani, Thailand
- Cosmeceutical Research, Development and Testing Center, College of Pharmacy, Rangsit University, Pathum Thani, Thailand
| | - Monruedee Sukprasansap
- Food Toxicology Unit, Institute of Nutrition, Mahidol University, Nakhon Pathom, Thailand
| | - Pithi Chanvorachote
- Department of Pharmacology and Physiology, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok, Thailand
| | - Aroonsri Priprem
- Faculty of Pharmacy, Mahasarakham University, Maha Sarakham, Thailand
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Potential Role of GST- π in Lung Cancer Stem Cell Cisplatin Resistance. BIOMED RESEARCH INTERNATIONAL 2021; 2021:9142364. [PMID: 34840986 PMCID: PMC8626171 DOI: 10.1155/2021/9142364] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Revised: 10/14/2021] [Accepted: 10/20/2021] [Indexed: 11/18/2022]
Abstract
Background Cancer stem cells (CSCs) are responsible for tumorigenesis, chemoresistance, and metastasis. Chemoresistance is a major challenge in the management of lung cancer. Glutathione-sulphur-transferase-π (GST-π) plays an important role in the origin and development of various types of cancer by regulating the cellular redox balance. Recent investigations have demonstrated that GST-π is associated with the chemoresistance of lung CSCs (LCSCs). However, the mechanism of GST-π in lung cancer, particularly in LCSCs, remains unclear. The present study is aimed at exploring the potential role of GST-π in stemness and cisplatin (DDP) resistance of LCSCs. Materials and methods. In the present study, lung cancer cell spheres were established using the A549 cell line, which according to our previous research, was confirmed to exhibit characteristics of stem cells. Next, GST-π protein expression, apoptosis percentage, and intracellular reactive oxygen species (ROS) concentration in A549 adherent cells and A549 cell spheres were analyzed by western blotting and flow cytometry, respectively. Finally, DDP resistance, ROS concentration, and GST-π expression in LCSCs were analyzed following the interference with GST-π using DL-buthionine-(S,R)-sulphoximine and N-acetylcysteine. Results The results revealed that GST-π was highly expressed in A549 cell spheres compared with A549 adherent cells and was associated with a decreased intracellular ROS concentration (both P < 0.05). Regulating GST-π protein expression could alter DDP resistance of LCSCs by influencing ROS. Conclusion These results suggested that GST-π may be important for LCSC drug resistance by downregulating ROS levels. These findings may contribute to the development of new adjuvant therapeutic strategies for lung cancer.
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