1
|
Sun Q, Jin C. Cell signaling and epigenetic regulation of nicotine-induced carcinogenesis. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 345:123426. [PMID: 38295934 PMCID: PMC10939829 DOI: 10.1016/j.envpol.2024.123426] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Revised: 11/22/2023] [Accepted: 01/21/2024] [Indexed: 02/05/2024]
Abstract
Nicotine, a naturally occurring tobacco alkaloid responsible for tobacco addiction, has long been considered non-carcinogenic. However, emerging evidence suggests that nicotine may possess carcinogenic properties in mice and could be a potential carcinogen in humans. This review aims to summarize the potential molecular mechanisms underlying nicotine-induced carcinogenesis, with a specific focus on epigenetic regulation and the activation of nicotinic acetylcholine receptors (nAChRs) in addition to genotoxicity and excess reactive oxygen species (ROS). Additionally, we explore a novel hypothesis regarding nicotine's carcinogenicity involving the downregulation of stem-loop binding protein (SLBP), a critical regulator of canonical histone mRNA, and the polyadenylation of canonical histone mRNA. By shedding light on these mechanisms, this review underscores the need for further research to elucidate the carcinogenic potential of nicotine and its implications for human health.
Collapse
Affiliation(s)
- Qi Sun
- Department of Medicine, New York University Grossman School of Medicine, New York, NY, 10010, USA; Department of Child and Adolescent Health, School of Public Health, China Medical University, Shenyang, Liaoning, 110013, China; Key Laboratory of Environmental Stress and Chronic Disease Control and Prevention, Ministry of Education, China Medical University, Shenyang, Liaoning, 110122, China
| | - Chunyuan Jin
- Department of Medicine, New York University Grossman School of Medicine, New York, NY, 10010, USA; Perlmutter Cancer Center, NYU Langone Health, New York, NY, 10016, USA.
| |
Collapse
|
2
|
Joshi J, Pandit A, Shah F. Nicotine mediated epithelial modulations: An in-vitro evidence. J Oral Biol Craniofac Res 2023; 13:796-800. [PMID: 38111634 PMCID: PMC10726250 DOI: 10.1016/j.jobcr.2023.11.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Revised: 10/03/2023] [Accepted: 11/06/2023] [Indexed: 12/20/2023] Open
Abstract
Introduction Nicotine, the main ingredient in tobacco, acts as a key alkaloid of nearly all tobacco products and has been demonstrated to facilitate tumorigenesis and accelerate metastasis. Further traditional tobacco products have shown to give systemic oral effects such as vasoconstriction, inflammation, and delayed wound healing, however; none of the reports have confirmed the significant knowledge of oral sequel of the effect of nicotine on oral epithelial cells. So, the current study aimed to investigate the effect of nicotine on epithelial transformation to a malignant state. Material & methods Through in-vitro experiments, the effects of nicotine on epithelial cells obtained from nicotine never exposed buccal mucosa were analyzed using total count and viability test, proliferation assay, cell cycle distribution assay, and PI3K/MAPK dual pathway activation assay. Result & conclusion MTT assay demonstrated that the proliferation of epithelial cells takes place at a 150 mM concentration of nicotine. Further, we identified the significantly increased cell count and viability in nicotine-exposed cells. Further, cell cycle distribution assay results demonstrated that nicotine forced the epithelial cells to enter the first growth phase. The same influence of nicotine was observed on the PI3K/MAPK dual pathway activation assay where a greater number of nicotine exposed cells showed dual pathway activation. In conclusion, the current study determined the potential mechanism of action of nicotine on oral epithelial cell proliferation through activating the oncogenic pathway. This may help to develop novel therapeutic strategies for the prevention of malignant transformation from smokeless tobacco-caused oral cancer.
Collapse
Affiliation(s)
- Jigna Joshi
- Molecular Diagnostic & Research Lab-3, Department of Cancer Biology, Gujarat Cancer and Research Institute, Ahmedabad, India
| | - Apexa Pandit
- Molecular Diagnostic & Research Lab-3, Department of Cancer Biology, Gujarat Cancer and Research Institute, Ahmedabad, India
| | - Franky Shah
- Molecular Diagnostic & Research Lab-3, Department of Cancer Biology, Gujarat Cancer and Research Institute, Ahmedabad, India
| |
Collapse
|
3
|
Capitani C, Chioccioli Altadonna G, Santillo M, Lastraioli E. Ion channels in lung cancer: biological and clinical relevance. Front Pharmacol 2023; 14:1283623. [PMID: 37942486 PMCID: PMC10627838 DOI: 10.3389/fphar.2023.1283623] [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: 08/26/2023] [Accepted: 10/16/2023] [Indexed: 11/10/2023] Open
Abstract
Despite improvements in treatment, lung cancer is still a major health problem worldwide. Among lung cancer subtypes, the most frequent is represented by adenocarcinoma (belonging to the Non-Small Cell Lung Cancer class) although the most challenging and harder to treat is represented by Small Cell Lung Cancer, that occurs at lower frequency but has the worst prognosis. For these reasons, the standard of care for these patients is represented by a combination of surgery, radiation therapy and chemotherapy. In this view, searching for novel biomarkers that might help both in diagnosis and therapy is mandatory. In the last 30 years it was demonstrated that different families of ion channels are overexpressed in both lung cancer cell lines and primary tumours. The altered ion channel profile may be advantageous for diagnostic and therapeutic purposes since most of them are localised on the plasma membrane thus their detection is quite easy, as well as their block with specific drugs and antibodies. This review focuses on ion channels (Potassium, Sodium, Calcium, Chloride, Anion and Nicotinic Acetylcholine receptors) in lung cancer (both Non-Small Cell Lung Cancer and Small Cell Lung Cancer) and recapitulate the up-to-date knowledge about their role and clinical relevance for a potential use in the clinical setting, for lung cancer diagnosis and therapy.
Collapse
Affiliation(s)
- Chiara Capitani
- General Pathology Laboratory, Department of Experimental and Clinical Medicine, Internal Medicine Section, University of Florence, Florence, Italy
- Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Ginevra Chioccioli Altadonna
- General Pathology Laboratory, Department of Experimental and Clinical Medicine, Internal Medicine Section, University of Florence, Florence, Italy
- Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Michele Santillo
- General Pathology Laboratory, Department of Experimental and Clinical Medicine, Internal Medicine Section, University of Florence, Florence, Italy
- Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Elena Lastraioli
- General Pathology Laboratory, Department of Experimental and Clinical Medicine, Internal Medicine Section, University of Florence, Florence, Italy
| |
Collapse
|
4
|
Papapostolou I, Ross-Kaschitza D, Bochen F, Peinelt C, Maldifassi MC. Contribution of the α5 nAChR Subunit and α5SNP to Nicotine-Induced Proliferation and Migration of Human Cancer Cells. Cells 2023; 12:2000. [PMID: 37566079 PMCID: PMC10417634 DOI: 10.3390/cells12152000] [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: 06/28/2023] [Revised: 08/01/2023] [Accepted: 08/02/2023] [Indexed: 08/12/2023] Open
Abstract
Nicotine in tobacco is known to induce tumor-promoting effects and cause chemotherapy resistance through the activation of nicotinic acetylcholine receptors (nAChRs). Many studies have associated the α5 nicotinic receptor subunit (α5), and a specific polymorphism in this subunit, with (i) nicotine administration, (ii) nicotine dependence, and (iii) lung cancer. The α5 gene CHRNA5 mRNA is upregulated in several types of cancer, including lung, prostate, colorectal, and stomach cancer, and cancer severity is correlated with smoking. In this study, we investigate the contribution of α5 in the nicotine-induced cancer hallmark functions proliferation and migration, in breast, colon, and prostate cancer cells. Nine human cell lines from different origins were used to determine nAChR subunit expression levels. Then, selected breast (MCF7), colon (SW480), and prostate (DU145) cancer cell lines were used to investigate the nicotine-induced effects mediated by α5. Using pharmacological and siRNA-based experiments, we show that α5 is essential for nicotine-induced proliferation and migration. Additionally, upon downregulation of α5, nicotine-promoted expression of EMT markers and immune regulatory proteins was impaired. Moreover, the α5 polymorphism D398N (α5SNP) caused a basal increase in proliferation and migration in the DU145 cell line, and the effect was mediated through G-protein signaling. Taken together, our results indicate that nicotine-induced cancer cell proliferation and migration are mediated via α5, adding to the characterization of α5 as a putative therapeutical target.
Collapse
Affiliation(s)
| | | | | | | | - Maria Constanza Maldifassi
- Institute of Biochemistry and Molecular Medicine, University of Bern, 3012 Bern, Switzerland; (I.P.); (D.R.-K.); (F.B.); (C.P.)
| |
Collapse
|
5
|
The Role of the Acetylcholine System in Common Respiratory Diseases and COVID-19. Molecules 2023; 28:molecules28031139. [PMID: 36770805 PMCID: PMC9920988 DOI: 10.3390/molecules28031139] [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: 12/17/2022] [Revised: 01/01/2023] [Accepted: 01/20/2023] [Indexed: 01/26/2023] Open
Abstract
As an indispensable component in human beings, the acetylcholine system regulates multiple physiological processes not only in neuronal tissues but also in nonneuronal tissues. However, since the concept of the "Nonneuronal cholinergic system (NNCS)" has been proposed, the role of the acetylcholine system in nonneuronal tissues has received increasing attention. A growing body of research shows that the acetylcholine system also participates in modulating inflammatory responses, regulating contraction and mucus secretion of respiratory tracts, and influencing the metastasis and invasion of lung cancer. In addition, the susceptibility and severity of respiratory tract infections caused by pathogens such as Mycobacterium Tuberculosis and the Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) can also correlate with the regulation of the acetylcholine system. In this review, we summarized the major roles of the acetylcholine system in respiratory diseases. Despite existing achievements in the field of the acetylcholine system, we hope that more in-depth investigations on this topic will be conducted to unearth more possible pharmaceutical applications for the treatment of diverse respiratory diseases.
Collapse
|
6
|
CHRNA1 and its correlated-myogenesis/cell cycle genes are prognosis-related markers of metastatic melanoma. Biochem Biophys Rep 2023; 33:101425. [PMID: 36654921 PMCID: PMC9841360 DOI: 10.1016/j.bbrep.2023.101425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 01/04/2023] [Accepted: 01/05/2023] [Indexed: 01/11/2023] Open
Abstract
Nicotinic acetylcholine receptors (CHRNs) expression and their critical role in various types of cancer have been reported. However, it is still unclear which CHRNs and their associated genes play essential roles in metastasis in melanoma patients. Here, we performed bioinformatics analyses on publicly available bulk RNA sequencing (RNA-seq) data of patients with melanoma to identify the CHRNs highly expressed in metastatic melanoma. We found that CHRNA1 was highly expressed in metastatic melanoma samples compared to primary melanoma samples and was strongly associated with CHRNB1 and CHRNG. These muscle-type CHRNs (CHRNA1, CHRNB1, and CHRNG) were correlated with the ZEB1 and Rho/ROCK pathway-related genes in metastatic melanoma samples. Pairwise correlations and enrichment analyses revealed that CHRNA1 was significantly associated with myogenesis/muscle contraction and cell cycle genes. Kaplan-Meier curves illustrated the involvement of CHRNA1, four of its correlated genes (DES, FLNC, CDK1, and CDC20), and the myogenesis gene signature in the prognosis of melanoma patients. Following the bulk RNA-seq analysis, single-cell RNA-seq (scRNA-seq) analysis showed that the CHRNA1-expressing melanoma cells are primarily metastatic and had high expression levels of CHRNB1, CHRNG, and myogenesis/cell cycle-related genes. Our bioinformatics analyses of the bulk RNA-seq and scRNA-seq data of patients with melanoma revealed that CHRNA1 and its correlated myogenesis/cell-related cycle genes are critical prognosis-related markers of metastatic melanoma.
Collapse
|
7
|
Zhu P, Jin Z, Kang G, Jia Y, Liu D, Zhang Q, Guo F, Jia Y, Jiao Y, Li J, Sun H, Ma X. Alpha5 nicotinic acetylcholine receptor mediated immune escape of lung adenocarcinoma via STAT3/Jab1-PD-L1 signalling. Cell Commun Signal 2022; 20:121. [PMID: 35971127 PMCID: PMC9377093 DOI: 10.1186/s12964-022-00934-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Accepted: 07/08/2022] [Indexed: 12/04/2022] Open
Abstract
Background Immunotherapy has proven to be an emerging treatment for non-small-cell lung cancer in recent years. Notably, smokers show higher programmed cell death ligand-1 (PD-L1) expression and better responses to PD-1/PD-L1 inhibitors than nonsmokers. Genome-wide association studies show that the CHRNΑ5 encoding α5-nicotinic acetylcholine receptor (α5-nAChR) is especially relevant to lung cancer and nicotine dependence. Jab1 is a key regulatory factor and promotes the stabilization of PD-L1. Our previous study reported that α5-nAChR mediates lung adenocarcinoma (LUAD) epithelial-mesenchymal transition (EMT) and metastasis via STAT3/Jab1. However, the link between α5-nAChR and PD-L1 is unclear in LUAD. Methods We used various bioinformatics databases to analyze the expression of related genes and their correlations. Expression and clinicopathologic significance of α5-nAChR and PD-L1 were detected by immunohistochemistry in a tissue microarray. α5-nAChR regulated LUAD cell immune escape by targeting the STAT3/Jab1-PD-L1 signalling by Western-blotting and ChIP in vitro. We used T cell coculture, flow cytometry, ELISA, CCK8 assay and crystal violet staining to detect the expression of regulatory T cell (Tregs), IFN-γ, IL-2 and the ability of T cell-mediated tumour cell killing respectively. IF assays were performed in both cancer cells and tumour xenograft paraffin sections to analyze the protein expression. The in vivo experiments in mouse model were performed to show the α5-nAChR-mediated immune escape via PD-L1 pathway. Results The expression of α5-nAChR was correlated with PD-L1 expression, smoking status and lower survival of LUAD in vivo. In vitro, the expression of α5-nAChR mediated phosphorylated STAT3 (pSTAT3), Jab1 and PD-L1 expression. STAT3 bound to the Jab1 or PD-L1 promoter and mediated PD-L1 expression. Jab1 stabilized PD-L1 expression in LUAD cells. Furthermore, in primary T cell cocultured system, downregulation of α5-nAChR suppressed the function of CD4+CD25+FOXP3+ Tregs, enhanced IFN-γ secretion, and increased T cell-mediated killing of LUAD cells. In the Jurkat T cells and LUAD cells coculture assay, inhibition of α5-nAChR increased IL-2 secretion. In tumour xenograft tissues, α5-nAChR expression was related to PD-L1, Jab1, pSTAT3, CD4 and granzyme B expression (GB). Conclusions Our results suggest that the novel α5-nAChR/STAT3-Jab1-PD-L1 axis is involved in LUAD immune escape, which could lead to potential therapeutic strategies for cancer immunotherapy. Video abstract
Supplementary Information The online version contains supplementary material available at 10.1186/s12964-022-00934-z.
Collapse
Affiliation(s)
- Ping Zhu
- Research Center of Basic Medicine, Central Hospital Affiliated to Shandong First Medical University, Jinan, China.,Department of Medical Laboratory, Weifang Medical University, Weifang, China
| | - Zhengxin Jin
- Research Center of Basic Medicine, Central Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Guiyu Kang
- Department of Medical Laboratory, Weifang Medical University, Weifang, China
| | - Yanfei Jia
- Research Center of Basic Medicine, Central Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Duanrui Liu
- Research Center of Basic Medicine, Jinan Central Hospital, Shandong University, Jinan, China
| | - Qian Zhang
- Research Center of Basic Medicine, Jinan Central Hospital, Shandong University, Jinan, China
| | - Feiyang Guo
- College of Life Science, Shandong Normal University, Jinan, China
| | - Ying Jia
- Research Center of Basic Medicine, Jinan Central Hospital, Shandong University, Jinan, China
| | - Yang Jiao
- Research Center of Basic Medicine, Jinan Central Hospital, Shandong University, Jinan, China
| | - Jingtan Li
- Research Center of Basic Medicine, Jinan Central Hospital, Shandong University, Jinan, China
| | - Haiji Sun
- College of Life Science, Shandong Normal University, Jinan, China
| | - Xiaoli Ma
- Research Center of Basic Medicine, Central Hospital Affiliated to Shandong First Medical University, Jinan, China. .,Department of Medical Laboratory, Weifang Medical University, Weifang, China. .,Research Center of Basic Medicine, Jinan Central Hospital, Shandong University, Jinan, China.
| |
Collapse
|
8
|
Fluorescently Labeled α-Conotoxin TxID, a New Probe for α3β4 Neuronal Nicotinic Acetylcholine Receptors. Mar Drugs 2022; 20:md20080511. [PMID: 36005514 PMCID: PMC9410468 DOI: 10.3390/md20080511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 08/07/2022] [Accepted: 08/09/2022] [Indexed: 11/16/2022] Open
Abstract
Neuronal nicotinic acetylcholine receptors (nAChRs) are important ion channel membrane proteins that are widely distributed in the central nervous system (CNS) and peripheral nervous system (PNS). As an important member, α3β4 nAChRs are related to pain sensation in PNS and nicotine addiction in CNS. However, research related to the α3β4 nAChRs is greatly limited by the lack of subtype-selective pharmacological tools. The α-conotoxin (α-CTx) TxID from the marine cone snail, Conus textile, is a selective α3β4 nAChR antagonist with relatively high potency. In this study, a fluorescent dye (5-TAMRA SE) was used to label TxID on the N-terminus of α-CTx TxID, and pure TxID-F (fluorescent analogue of TxID) was obtained by HPLC. At the same time, the potency and selectivity of TxID-F were detected by high-performance liquid chromatography (HPLC). Additionally, the potency and selectivity of TxID-F were determined by using a two-electrode voltage-clamp technique on various nAChRs expressed in the Xenopus oocyte expression system. The results obtained by electrophysiology showed that TxID-F maintained the same order of potency (IC50 73 nM) as the native toxin (IC50 25 nM) for the α3β4 nAChR subtype. In addition, the results of fluorescent spectroscopy and circular dichroism showed TxID-F has the same fluorescence as 5-TAMRA SE, as well as similar profiles as TxID. The results of flow cytometry showed that the histogram shifted significantly to the right for the RAW264.7 cells expressing α3β4-containing nAChRs stained with TxID-F and confirmed by live cell imaging. The study of fluorescent-labeled α-CTx TxID provides a rich pharmacological tool to explore the structure-function relationship, distribution, and ligand-binding domain of α3β4 nAChR subtype in the future.
Collapse
|
9
|
Jia Y, Zhang Q, Liu Z, Pan P, Jia Y, Zhu P, Jiao Y, Kang G, Ma X. The role of α5-nicotinic acetylcholine receptor/NLRP3 signaling pathway in lung adenocarcinoma cell proliferation and migration. Toxicology 2022; 469:153120. [DOI: 10.1016/j.tox.2022.153120] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Revised: 02/02/2022] [Accepted: 02/03/2022] [Indexed: 12/16/2022]
|
10
|
Zhang Q, Jia Y, Pan P, Zhang X, Jia Y, Zhu P, Chen X, Jiao Y, Kang G, Zhang L, Ma X. α5-nAChR associated with Ly6E modulates cell migration via TGF-β1/Smad signaling in non-small cell lung cancer. Carcinogenesis 2022; 43:393-404. [PMID: 34994389 DOI: 10.1093/carcin/bgac003] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 12/21/2021] [Accepted: 01/04/2022] [Indexed: 11/13/2022] Open
Abstract
The α5-nicotinic acetylcholine receptor (α5-nAChR) is closely associated with nicotine-related lung cancer, offering a novel perspective for investigating the molecular pathogenesis of this disease. However, the mechanism by which α5-nAChR functions in lung carcinogenesis remains to be elucidated. Lymphocyte antigen 6 (Ly6) proteins, like snake three-finger alpha toxins such as α-bungarotoxin, can modulate nAChR signaling. Ly6E, a member of the Ly6 family, is a biomarker of poor prognosis in smoking-induced lung carcinogenesis and is involved in the regulation of TGF-β1/Smad signaling. Here, we explored the underlying mechanisms linking α5-nAChR and Ly6E in non-small cell lung cancer (NSCLC). The expression of α5-nAChR was correlated with Ly6 expression, smoking status and lower survival in NSCLC tissues. In vitro, α5-nAChR mediated Ly6E, the phosphorylation of the TGF-β1 downstream molecule Smad3 (pSmad3, a key mediator of TGF-β1 signaling), the epithelial-mesenchymal transition (EMT) markers Zeb1, N-cadherin and vimentin expression in NSCLC cells. The downregulation of Ly6E reduced α5-nAChR, pSmad3, Zeb1, N-cadherin and vimentin expression. Functionally, silencing both α5-nAChR and Ly6E significantly inhibited cell migration compared to silencing α5-nAChR or Ly6E alone. Furthermore, the functional effects of α5-nAchR and Ly6E were confirmed in chicken embryo chorioallantoic membrane (CAM) and mouse xenograft models. Therefore, our findings uncover a new interaction between α5-nAChR and Ly6E that inhibits cancer cell migration by modulating the TGF-β1/Smad signaling pathway in NSCLC, which may serve as a novel target for therapeutic intervention.
Collapse
Affiliation(s)
- Qian Zhang
- Research Center of Basic Medicine, Jinan Central Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Ying Jia
- Department of Clinical Laboratory, Taian City Central Hospital, Taian, China
| | - Pan Pan
- Research Center of Basic Medicine, Jinan Central Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Xiuping Zhang
- Research Center of Basic Medicine, Jinan Central Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Yanfei Jia
- Research Center of Basic Medicine, Jinan Central Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Ping Zhu
- Department of Medical Laboratory, Weifang Medical University, Weifang, China
| | - Xiaowei Chen
- Research Center of Basic Medicine, Jinan Central Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Yang Jiao
- Research Center of Basic Medicine, Jinan Central Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Guiyu Kang
- Research Center of Basic Medicine, Jinan Central Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China.,Department of Clinical Laboratory, Taian City Central Hospital, Taian, China
| | - Lulu Zhang
- Research Center of Basic Medicine, Jinan Central Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Xiaoli Ma
- Research Center of Basic Medicine, Jinan Central Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China.,Department of Medical Laboratory, Weifang Medical University, Weifang, China.,Research Center of Basic Medicine, Central Hospital Affiliated to Shandong First Medical University, Jinan, China
| |
Collapse
|
11
|
Routhier J, Pons S, Freidja ML, Dalstein V, Cutrona J, Jonquet A, Lalun N, Mérol JC, Lathrop M, Stitzel JA, Kervoaze G, Pichavant M, Gosset P, Tournier JM, Birembaut P, Dormoy V, Maskos U. An innate contribution of human nicotinic receptor polymorphisms to COPD-like lesions. Nat Commun 2021; 12:6384. [PMID: 34737286 PMCID: PMC8568944 DOI: 10.1038/s41467-021-26637-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Accepted: 10/14/2021] [Indexed: 02/07/2023] Open
Abstract
Chronic Obstructive Pulmonary Disease is a generally smoking-linked major cause of morbidity and mortality. Genome-wide Association Studies identified a locus including a non-synonymous single nucleotide polymorphism in CHRNA5, rs16969968, encoding the nicotinic acetylcholine receptor α5 subunit, predisposing to both smoking and Chronic Obstructive Pulmonary Disease. Here we report that nasal polyps from rs16969968 non-smoking carriers exhibit airway epithelium remodeling and inflammation. These hallmarks of Chronic Obstructive Pulmonary Disease occur spontaneously in mice expressing human rs16969968. They are significantly amplified after exposure to porcine pancreatic elastase, an emphysema model, and to oxidative stress with a polymorphism-dependent alteration of lung function. Targeted rs16969968 expression in epithelial cells leads to airway remodeling in vivo, increased proliferation and production of pro-inflammatory cytokines through decreased calcium entry and increased adenylyl-cyclase activity. We show that rs16969968 directly contributes to Chronic Obstructive Pulmonary Disease-like lesions, sensitizing the lung to the action of oxidative stress and injury, and represents a therapeutic target. Human polymorphisms in nicotinic acetylcholine receptor genes have been linked to both smoking and lung diseases like Chronic Obstructive Pulmonary Disease (COPD) or lung cancer. Here the authors identify a direct role for a human coding polymorphism in COPD-like lesions independent of smoke or nicotine exposure.
Collapse
Affiliation(s)
- Julie Routhier
- Université de Reims Champagne-Ardenne, Inserm, P3Cell UMR-S1250, Reims, France
| | - Stéphanie Pons
- Institut Pasteur, Université de Paris, Integrative Neurobiology of Cholinergic Systems, CNRS UMR 3571, Paris, France
| | - Mohamed Lamine Freidja
- Université de Reims Champagne-Ardenne, Inserm, P3Cell UMR-S1250, Reims, France.,Department of Biochemistry and Microbiology, Faculty of Sciences, University of M'sila, M'sila, Algeria
| | - Véronique Dalstein
- Université de Reims Champagne-Ardenne, Inserm, P3Cell UMR-S1250, Reims, France.,Department of Biopathology, CHU of Reims, Reims, France
| | - Jérôme Cutrona
- Université de Reims Champagne-Ardenne, Inserm, P3Cell UMR-S1250, Reims, France
| | - Antoine Jonquet
- Université de Reims Champagne-Ardenne, Inserm, P3Cell UMR-S1250, Reims, France
| | - Nathalie Lalun
- Université de Reims Champagne-Ardenne, Inserm, P3Cell UMR-S1250, Reims, France
| | - Jean-Claude Mérol
- Université de Reims Champagne-Ardenne, Inserm, P3Cell UMR-S1250, Reims, France.,Department of Otorhinolaryngology, CHU of Reims, Reims, France
| | - Mark Lathrop
- McGill University Genome Center, Montréal, QC, Canada
| | - Jerry A Stitzel
- Institute for Behavioral Genetics, University of Colorado, Boulder, CO, USA
| | - Gwenola Kervoaze
- University of Lille, CNRS UMR9017, Inserm U1019, CHU Lille, Institut Pasteur de Lille, CIIL - Center for Infection and Immunity of Lille, Lille, France
| | - Muriel Pichavant
- University of Lille, CNRS UMR9017, Inserm U1019, CHU Lille, Institut Pasteur de Lille, CIIL - Center for Infection and Immunity of Lille, Lille, France
| | - Philippe Gosset
- University of Lille, CNRS UMR9017, Inserm U1019, CHU Lille, Institut Pasteur de Lille, CIIL - Center for Infection and Immunity of Lille, Lille, France
| | - Jean-Marie Tournier
- Université de Reims Champagne-Ardenne, Inserm, P3Cell UMR-S1250, Reims, France
| | - Philippe Birembaut
- Université de Reims Champagne-Ardenne, Inserm, P3Cell UMR-S1250, Reims, France.,Department of Biopathology, CHU of Reims, Reims, France
| | - Valérian Dormoy
- Université de Reims Champagne-Ardenne, Inserm, P3Cell UMR-S1250, Reims, France.
| | - Uwe Maskos
- Institut Pasteur, Université de Paris, Integrative Neurobiology of Cholinergic Systems, CNRS UMR 3571, Paris, France.
| |
Collapse
|
12
|
Hollenhorst MI, Krasteva-Christ G. Nicotinic Acetylcholine Receptors in the Respiratory Tract. Molecules 2021; 26:6097. [PMID: 34684676 PMCID: PMC8539672 DOI: 10.3390/molecules26206097] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 10/01/2021] [Accepted: 10/06/2021] [Indexed: 02/07/2023] Open
Abstract
Nicotinic acetylcholine receptors (nAChR) are widely distributed in neuronal and non-neuronal tissues, where they play diverse physiological roles. In this review, we highlight the recent findings regarding the role of nAChR in the respiratory tract with a special focus on the involvement of nAChR in the regulation of multiple processes in health and disease. We discuss the role of nAChR in mucociliary clearance, inflammation, and infection and in airway diseases such as asthma, chronic obstructive pulmonary disease, and cancer. The subtype diversity of nAChR enables differential regulation, making them a suitable pharmaceutical target in many diseases. The stimulation of the α3β4 nAChR could be beneficial in diseases accompanied by impaired mucociliary clearance, and the anti-inflammatory effect due to an α7 nAChR stimulation could alleviate symptoms in diseases with chronic inflammation such as chronic obstructive pulmonary disease and asthma, while the inhibition of the α5 nAChR could potentially be applied in non-small cell lung cancer treatment. However, while clinical studies targeting nAChR in the airways are still lacking, we suggest that more detailed research into this topic and possible pharmaceutical applications could represent a valuable tool to alleviate the symptoms of diverse airway diseases.
Collapse
|
13
|
Zhang L, Bing S, Dong M, Lu X, Xiong Y. Targeting ion channels for the treatment of lung cancer. Biochim Biophys Acta Rev Cancer 2021; 1876:188629. [PMID: 34610420 DOI: 10.1016/j.bbcan.2021.188629] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Revised: 09/02/2021] [Accepted: 09/19/2021] [Indexed: 02/06/2023]
Abstract
Lung cancer is caused by several environmental and genetic variables and is globally associated with elevated morbidity and mortality. Among these variables, membrane-bound ion channels have a key role in regulating multiple signaling pathways in tumor cells and dysregulation of ion channel expression and function is closely related to proliferation, migration, and metastasis of lung cancer. This work reviews and summarizes current knowledge about the role of ion channels in lung cancer, focusing on the changes in the expression and function of various ion channels in lung cancer and how these changes affect lung cancer cell biology both in vitro and in vivo as evidenced by both genetic and pharmacological studies. It can help understand the molecular mechanisms of various ion channels influencing the initiation and progression of lung cancer and shed new insights into their roles in the development and treatment of this deadly disease.
Collapse
Affiliation(s)
- Liqin Zhang
- The First Affiliated Hospital of Wannan Medical College,Yijishan Hospital,2 Zheshan West Road, Wuhu 241000,China.
| | - Shuya Bing
- The First Affiliated Hospital of Wannan Medical College,Yijishan Hospital,2 Zheshan West Road, Wuhu 241000,China
| | - Mo Dong
- The First Affiliated Hospital of Wannan Medical College,Yijishan Hospital,2 Zheshan West Road, Wuhu 241000,China
| | - Xiaoqiu Lu
- The First Affiliated Hospital of Wannan Medical College,Yijishan Hospital,2 Zheshan West Road, Wuhu 241000,China
| | - Yuancheng Xiong
- The First Affiliated Hospital of Wannan Medical College,Yijishan Hospital,2 Zheshan West Road, Wuhu 241000,China
| |
Collapse
|
14
|
Lallai V, Manca L, Fowler CD. E-cigarette vape and lung ACE2 expression: Implications for coronavirus vulnerability. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2021; 86:103656. [PMID: 33838329 PMCID: PMC8025581 DOI: 10.1016/j.etap.2021.103656] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Revised: 04/01/2021] [Accepted: 04/02/2021] [Indexed: 05/15/2023]
Abstract
Evidence in humans suggests a correlation between nicotine smoking and severe respiratory symptoms with COVID-19 infection. In lung tissue, angiotensin-converting enzyme 2 (ACE2) appears to mechanistically underlie viral entry. Here, we investigated whether e-cigarette vapor inhalation alters ACE2 and nicotinic acetylcholine receptor (nAChR) expression in male and female mice. In male lung, nicotine vapor inhalation induced a significant increase in ACE2 mRNA and protein, but surprisingly, these differences were not found in females. Further, both vehicle and nicotine vapor inhalation downregulated α5 nAChR subunits in both sexes, while differences were not found in α7 nAChR subunit expression. Finally, blood ACE2 levels did not differ with exposure, indicating that blood sampling is not a sufficient indicator of lung ACE2 changes. Together, these data indicate a direct link between e-cigarette vaping and increased ACE2 expression in male lung tissue, which thereby reveals an underlying mechanism of increased vulnerability to coronavirus infection in individuals vaping nicotine.
Collapse
Affiliation(s)
- Valeria Lallai
- Department of Neurobiology and Behavior, University of California Irvine, Irvine, CA, 92697, USA
| | - Letizia Manca
- Department of Neurobiology and Behavior, University of California Irvine, Irvine, CA, 92697, USA
| | - Christie D Fowler
- Department of Neurobiology and Behavior, University of California Irvine, Irvine, CA, 92697, USA.
| |
Collapse
|
15
|
Temporal proteomic changes induced by nicotine in human cells: A quantitative proteomics approach. J Proteomics 2021; 241:104244. [PMID: 33895337 DOI: 10.1016/j.jprot.2021.104244] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 04/04/2021] [Accepted: 04/19/2021] [Indexed: 12/20/2022]
Abstract
Nicotine is a prominent active compound in tobacco and many smoking cessation products. Some of the biological effects of nicotine are well documented in in vitro and in vivo systems; however, data are scarce concerning the time-dependent changes on protein and phosphorylation events in response to nicotine. Here, we profiled the proteomes of SH-SY5Y and A549 cell lines subjected to acute (15 min, 1 h and 4 h) or chronic (24 h, 48 h) nicotine exposures. We used sample multiplexing (TMTpro16) and quantified more than 9000 proteins and over 7000 phosphorylation events per cell line. Among our findings, we determined a decrease in mitochondrial protein abundance for SH-SY5Y, while we detected alterations in several immune pathways, such as the complement system, for A549 following nicotine treatment. We also explored the proposed association between smoking (specifically nicotine) and SARS-CoV2. Here, we found several host proteins known to interact with viral proteins that were affected by nicotine in a time dependent manner. This dataset can be mined further to investigate the potential role of nicotine in different biological contexts. SIGNIFICANCE: Smoking is a major public health issue that is associated with several serious chronic, yet preventable diseases, including stroke, heart disease, type 2 diabetes, cancer, and susceptibility to infection. Tobacco smoke is a complex mixture of thousands of different compounds, among which nicotine is the main addictive compound. The biological effects of nicotine have been reported in several models, however very little data are available concerning the temporal proteomic and phosphoproteomic changes in response to nicotine. Here, we provide a dataset exploring the potential role of nicotine on different biological processes over time, including implications in the study of SARS-CoV2.
Collapse
|
16
|
Diabasana Z, Perotin JM, Belgacemi R, Ancel J, Mulette P, Delepine G, Gosset P, Maskos U, Polette M, Deslée G, Dormoy V. Nicotinic Receptor Subunits Atlas in the Adult Human Lung. Int J Mol Sci 2020; 21:ijms21207446. [PMID: 33050277 PMCID: PMC7588933 DOI: 10.3390/ijms21207446] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Revised: 10/05/2020] [Accepted: 10/06/2020] [Indexed: 12/12/2022] Open
Abstract
Nicotinic acetylcholine receptors (nAChRs) are pentameric ligand-gated ion channels responsible for rapid neural and neuromuscular signal transmission. Although it is well documented that 16 subunits are encoded by the human genome, their presence in airway epithelial cells (AECs) remains poorly understood, and contribution to pathology is mainly discussed in the context of cancer. We analysed nAChR subunit expression in the human lungs of smokers and non-smokers using transcriptomic data for whole-lung tissues, isolated large AECs, and isolated small AECs. We identified differential expressions of nAChRs in terms of detection and repartition in the three modalities. Smoking-associated alterations were also unveiled. Then, we identified an nAChR transcriptomic print at the single-cell level. Finally, we reported the localizations of detectable nAChRs in bronchi and large bronchioles. Thus, we compiled the first complete atlas of pulmonary nAChR subunits to open new avenues to further unravel the involvement of these receptors in lung homeostasis and respiratory diseases.
Collapse
Affiliation(s)
- Zania Diabasana
- Inserm UMR-S1250, P3Cell, University of Reims Champagne-Ardenne, SFR CAP-SANTE, 51092 Reims, France; (Z.D.); (J.-M.P.); (R.B.); (J.A.); (P.M.); (G.D.); (M.P.); (G.D.)
| | - Jeanne-Marie Perotin
- Inserm UMR-S1250, P3Cell, University of Reims Champagne-Ardenne, SFR CAP-SANTE, 51092 Reims, France; (Z.D.); (J.-M.P.); (R.B.); (J.A.); (P.M.); (G.D.); (M.P.); (G.D.)
- Department of Respiratory Diseases, Centre Hospitalier Universitaire de Reims, Hôpital Maison Blanche, 51092 Reims, France
| | - Randa Belgacemi
- Inserm UMR-S1250, P3Cell, University of Reims Champagne-Ardenne, SFR CAP-SANTE, 51092 Reims, France; (Z.D.); (J.-M.P.); (R.B.); (J.A.); (P.M.); (G.D.); (M.P.); (G.D.)
| | - Julien Ancel
- Inserm UMR-S1250, P3Cell, University of Reims Champagne-Ardenne, SFR CAP-SANTE, 51092 Reims, France; (Z.D.); (J.-M.P.); (R.B.); (J.A.); (P.M.); (G.D.); (M.P.); (G.D.)
- Department of Respiratory Diseases, Centre Hospitalier Universitaire de Reims, Hôpital Maison Blanche, 51092 Reims, France
| | - Pauline Mulette
- Inserm UMR-S1250, P3Cell, University of Reims Champagne-Ardenne, SFR CAP-SANTE, 51092 Reims, France; (Z.D.); (J.-M.P.); (R.B.); (J.A.); (P.M.); (G.D.); (M.P.); (G.D.)
- Department of Respiratory Diseases, Centre Hospitalier Universitaire de Reims, Hôpital Maison Blanche, 51092 Reims, France
| | - Gonzague Delepine
- Inserm UMR-S1250, P3Cell, University of Reims Champagne-Ardenne, SFR CAP-SANTE, 51092 Reims, France; (Z.D.); (J.-M.P.); (R.B.); (J.A.); (P.M.); (G.D.); (M.P.); (G.D.)
- Department of Thoracic Surgery, Centre Hospitalier Universitaire de Reims, Hôpital Maison Blanche, 51092 Reims, France
| | - Philippe Gosset
- CNRS UMR9017, Inserm U1019, University of Lille, Centre Hospitalier Régional Universitaire de Lille, Institut Pasteur, CIIL—Center for Infection and Immunity of Lille, 59000 Lille, France;
| | - Uwe Maskos
- Integrative Neurobiology of Cholinergic Systems, Institut Pasteur, CNRS UMR 3571, 75015 Paris, France;
| | - Myriam Polette
- Inserm UMR-S1250, P3Cell, University of Reims Champagne-Ardenne, SFR CAP-SANTE, 51092 Reims, France; (Z.D.); (J.-M.P.); (R.B.); (J.A.); (P.M.); (G.D.); (M.P.); (G.D.)
- Department of Biopathology, Centre Hospitalier Universitaire de Reims, Hôpital Maison Blanche, 51092 Reims, France
| | - Gaëtan Deslée
- Inserm UMR-S1250, P3Cell, University of Reims Champagne-Ardenne, SFR CAP-SANTE, 51092 Reims, France; (Z.D.); (J.-M.P.); (R.B.); (J.A.); (P.M.); (G.D.); (M.P.); (G.D.)
- Department of Respiratory Diseases, Centre Hospitalier Universitaire de Reims, Hôpital Maison Blanche, 51092 Reims, France
| | - Valérian Dormoy
- Inserm UMR-S1250, P3Cell, University of Reims Champagne-Ardenne, SFR CAP-SANTE, 51092 Reims, France; (Z.D.); (J.-M.P.); (R.B.); (J.A.); (P.M.); (G.D.); (M.P.); (G.D.)
- Correspondence: ; Tel.: +33-(0)3-10-73-62-28; Fax: +33-(0)3-26-06-58-61
| |
Collapse
|
17
|
Tsai KYF, Hirschi Budge KM, Lepre AP, Rhees MS, Ajdaharian J, Geiler J, Epperson DG, Astle KJ, Winden DR, Arroyo JA, Reynolds PR. Cell invasion, RAGE expression, and inflammation in oral squamous cell carcinoma (OSCC) cells exposed to e-cigarette flavoring. Clin Exp Dent Res 2020; 6:618-625. [PMID: 32783323 PMCID: PMC7745078 DOI: 10.1002/cre2.314] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Revised: 07/01/2020] [Accepted: 07/05/2020] [Indexed: 12/24/2022] Open
Abstract
Objective Electronic cigarettes have given rise to a new, largely unregulated market within the smoking industry. While generally supposed to be less harmful than traditional tobacco smoke, awareness of the biological effects of electronic cigarette liquid is still scarce. Our objective was to determine the impact of electronic cigarette flavoring and nicotine on gingival squamous cell carcinoma invasion, RAGE expression, and the elaboration of pro‐inflammatory molecules. Methods and Materials Gingival and tongue squamous cell carcinoma cells were exposed to Red Hot or Green Apple flavored electronic cigarette flavoring with or without nicotine. Immunofluorescence determined RAGE expression. Real‐time cellular invasion was assessed using a RTCA DP instrument. Culture medium was assayed for cytokine secretion. Results Compared to controls we observed: increased cell invasion in gingival cells with Red Hot electronic cigarette flavoring and decreased cell invasion with Green Apple; decreased cell invasion in tongue cells treated with Red Hot electronic cigarette flavoring and no differences in invasion with Green Apple; flavor and nicotine dependent increases in RAGE expression; and differential expression of IL‐1α, IL‐8, and MMP‐13. Conclusion We conclude that electronic cigarette flavoring and nicotine orchestrate differential regulation of oral squamous cell carcinoma (OSCC) cell invasion and inflammatory effects. This study provides an important initial step in dissecting RAGE‐mediated mechanisms of cancerous invasion and molecular avenues employed by OSCC.
Collapse
Affiliation(s)
- Kary Y F Tsai
- Lung and Placenta Research Laboratory, Department of Physiology and Developmental Biology, Brigham Young University, Provo, Utah, USA
| | - Kelsey M Hirschi Budge
- Lung and Placenta Research Laboratory, Department of Physiology and Developmental Biology, Brigham Young University, Provo, Utah, USA
| | - Anthony P Lepre
- College of Dental Medicine, Roseman University of Health Sciences, South Jordan, Utah, USA
| | - Michael S Rhees
- College of Dental Medicine, Roseman University of Health Sciences, South Jordan, Utah, USA
| | - Janet Ajdaharian
- College of Dental Medicine, Roseman University of Health Sciences, South Jordan, Utah, USA
| | - Jordy Geiler
- College of Dental Medicine, Roseman University of Health Sciences, South Jordan, Utah, USA
| | - Daniel G Epperson
- College of Dental Medicine, Roseman University of Health Sciences, South Jordan, Utah, USA
| | - Kolten J Astle
- College of Dental Medicine, Roseman University of Health Sciences, South Jordan, Utah, USA
| | - Duane R Winden
- College of Dental Medicine, Roseman University of Health Sciences, South Jordan, Utah, USA
| | - Juan A Arroyo
- Lung and Placenta Research Laboratory, Department of Physiology and Developmental Biology, Brigham Young University, Provo, Utah, USA
| | - Paul R Reynolds
- Lung and Placenta Research Laboratory, Department of Physiology and Developmental Biology, Brigham Young University, Provo, Utah, USA
| |
Collapse
|
18
|
Zhang Y, Sun Y, Jia Y, Zhang Q, Zhu P, Ma X. α5-nAChR and survivin: Two potential biological targets in lung adenocarcinoma. J Cell Physiol 2020; 236:1787-1797. [PMID: 33196129 DOI: 10.1002/jcp.29956] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Revised: 07/06/2020] [Accepted: 07/09/2020] [Indexed: 12/11/2022]
Abstract
Recent studies have shown that the overexpression of α5 nicotinic acetylcholine receptor (α5-nAChR) is associated with nicotine-related lung carcinogenesis. Survivin is one of the biomarkers of a worse prognosis for smoking-related lung cancer. The aim of this study is to investigate the association of α5-nAChR, survivin, and clinical outcomes in lung adenocarcinoma (LUAD). We analyzed the expression level and correlation of CHRNA5 (encoding α5-nAChR) and BIRC5 (encoding survivin) in LUAD with The Cancer Genome Atlas data set. The relationship between overall survival (OS) and the expression of CHRNA5 or/and BIRC5 was evaluated by the Kaplan-Meier method and Cox proportional hazards model. Moreover, our results showed that the expression of α5-nAChR mediated survivin expression in lung cancer cells and in lung tumor xenografts. Relationships between the expression of α5-nAChR and/or survivin with clinical-pathological characteristics were analyzed using LUAD tissue samples. The results showed that expression of α5-nAChR was correlated with survivin expression in vitro and in vivo. The group coexpressing α5-nAChR and survivin had a worse prognosis than other subgroups in LUAD (p < .05). In conclusion, ascertaining the expression of both α5-nAChR and survivin provides a better measure of prognosis for LUAD patients. The combined inhibition of α5-nAChR and survivin may be a promising multitargeted gene therapeutic strategy in LUAD diagnosis.
Collapse
Affiliation(s)
- Yujie Zhang
- Research Center of Basic Medicine, Central Hospital Affiliated to Shandong First Medical University, Jinan, China.,Department of Medical Laboratory, Weifang Medical University, Weifang, China
| | - Yilin Sun
- College of Science, Northwest A&F University, Yangling, Xianyang, China
| | - Yanfei Jia
- Research Center of Basic Medicine, Central Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Qian Zhang
- Research Center of Basic Medicine, Jinan Central Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Ping Zhu
- Department of Medical Laboratory, Weifang Medical University, Weifang, China
| | - Xiaoli Ma
- Research Center of Basic Medicine, Central Hospital Affiliated to Shandong First Medical University, Jinan, China.,Research Center of Basic Medicine, Jinan Central Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| |
Collapse
|
19
|
Differential Expression of Nicotine Acetylcholine Receptors Associates with Human Breast Cancer and Mediates Antitumor Activity of αO-Conotoxin GeXIVA. Mar Drugs 2020; 18:md18010061. [PMID: 31963558 PMCID: PMC7024346 DOI: 10.3390/md18010061] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2019] [Revised: 01/13/2020] [Accepted: 01/14/2020] [Indexed: 12/14/2022] Open
Abstract
Nicotinic acetylcholine receptors (nAChRs) are membrane receptors and play a major role in tumorigenesis and cancer progression. Here, we have investigated the differential expression of nAChR subunits in human breast cancer cell lines and breast epithelial cell lines at mRNA and protein levels and the effects of the αO-conotoxin GeXIVA, antagonist of α9α10 nAChR, on human breast cancer cells. Reverse transcription polymerase chain reaction (PCR) demonstrated that all nAChR subunits, except α6, were expressed in the 20 tested cell lines. Real time quantitative PCR (QRT-PCR) suggested that the mRNA of α5, α7, α9 and β4 nAChR subunits were overexpressed in all the breast cancer cell lines compared with the normal epithelial cell line HS578BST. α9 nAChR was highly expressed in almost all the breast cancer cell lines in comparison to normal cells. The different expression is prominent (p < 0.001) as determined by flow cytometry and Western blotting, except for MDA-MB-453 and HCC1395 cell lines. αO-conotoxin GeXIVA that targeted α9α10 nAChR were able to significantly inhibit breast cancer cell proliferation in vitro and merits further investigation as potential agents for targeted therapy.
Collapse
|
20
|
Chen X, Jia Y, Zhang Y, Zhou D, Sun H, Ma X. α5-nAChR contributes to epithelial-mesenchymal transition and metastasis by regulating Jab1/Csn5 signalling in lung cancer. J Cell Mol Med 2020; 24:2497-2506. [PMID: 31930655 PMCID: PMC7028847 DOI: 10.1111/jcmm.14941] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2019] [Revised: 10/31/2019] [Accepted: 11/26/2019] [Indexed: 12/14/2022] Open
Abstract
Recent studies have showed that α5 nicotinic acetylcholine receptor (α5‐nAChR) is closely associated with nicotine‐related lung cancer. Our previous studies also demonstrated that α5‐nAChR mediates nicotine‐induced lung carcinogenesis. However, the mechanism by which α5‐nAChR functions in lung carcinogenesis remains to be elucidated. Jab1/Csn5 is a key regulatory factor in smoking‐induced lung cancer. In this study, we explored the underlying mechanisms linking the α5‐nAChR‐Jab1/Csn5 axis with lung cancer epithelial‐mesenchymal transition (EMT) and metastasis, which may provide potential therapeutic targets for future lung cancer treatments. Our results demonstrated that the expression of α5‐nAChR was correlated with the expression of Jab1/Csn5 in lung cancer tissues and lung cancer cells. α5‐nAChR expression is associated with Jab1/Csn5 expression in lung tumour xenografts in mice. In vitro, the expression of α5‐nAChR mediated Stat3 and Jab1/Csn5 expression, significantly regulating the expression of the EMT markers, N‐cadherin and Vimentin. In addition, the down‐regulation of α5‐nAChR or/and Stat3 reduced Jab1/Csn5 expression, while the silencing of α5‐nAChR or Jab1/Csn5 inhibited the migration and invasion of NSCLC cells. Mechanistically, α5‐nAChR contributes to EMT and metastasis by regulating Stat3‐Jab1/Csn5 signalling in NSCLC, suggesting that α5‐nAChR may be a potential target in NSCLC diagnosis and immunotherapy.
Collapse
Affiliation(s)
- Xiaowei Chen
- Central Laboratory, Jinan Central Hospital Affiliated to Shandong University, Jinan, China
| | - Yanfei Jia
- Central Laboratory, Jinan Central Hospital Affiliated to Shandong University, Jinan, China
| | | | - Dajie Zhou
- Weifang Medical University, Weifang, China
| | - Haiji Sun
- Key Laboratory of Animal Resistance Biology of Shandong Province, School of Life Science, Shandong Normal University, Jinan, China
| | - Xiaoli Ma
- Central Laboratory, Jinan Central Hospital Affiliated to Shandong University, Jinan, China
| |
Collapse
|
21
|
Nicotinic Receptors Underlying Nicotine Dependence: Evidence from Transgenic Mouse Models. Curr Top Behav Neurosci 2020; 45:101-121. [PMID: 32468493 DOI: 10.1007/7854_2020_134] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Nicotine underlies the reinforcing properties of tobacco cigarettes and e-cigarettes. After inhalation and absorption, nicotine binds to various nicotinic acetylcholine receptor (nAChR) subtypes localized on the pre- and postsynaptic membranes of cells, which subsequently leads to the modulation of cellular function and neurotransmitter signaling. In this chapter, we begin by briefly reviewing the current understanding of nicotine's actions on nAChRs and highlight considerations regarding nAChR subtype localization and pharmacodynamics. Thereafter, we discuss the seminal discoveries derived from genetically modified mouse models, which have greatly contributed to our understanding of nicotine's effects on the reward-related mesolimbic pathway and the aversion-related habenulo-interpeduncular pathway. Thereafter, emerging areas of research focusing on modulation of nAChR expression and/or function are considered. Taken together, these discoveries have provided a foundational understanding of various genetic, neurobiological, and behavioral factors underlying the motivation to use nicotine and related dependence processes, which are thereby advancing drug discovery efforts to promote long-term abstinence.
Collapse
|
22
|
Abstract
Ion channels are a major class of membrane proteins that play central roles in signaling within and among cells, as well as in the coupling of extracellular events with cellular responses. Dysregulated ion channel activity plays a causative role in many diseases including cancer. Here, we will review their role in lung cancer. Lung cancer is one of the most frequently diagnosed cancers, and it causes the highest number of deaths of all cancer types. The overall 5-year survival rate of lung cancer patients is only 19% and decreases to 5% when patients are diagnosed with stage IV. Thus, new therapeutical strategies are urgently needed. The important contribution of ion channels to the progression of various types of cancer has been firmly established so that ion channel-based therapeutic concepts are currently developed. Thus far, the knowledge on ion channel function in lung cancer is still relatively limited. However, the published studies clearly show the impact of ion channel inhibitors on a number of cellular mechanisms underlying lung cancer cell aggressiveness such as proliferation, migration, invasion, cell cycle progression, or adhesion. Additionally, in vivo experiments reveal that ion channel inhibitors diminish tumor growth in mice. Furthermore, some studies give evidence that ion channel inhibitors can have an influence on the resistance or sensitivity of lung cancer cells to common chemotherapeutics such as paclitaxel or cisplatin.
Collapse
Affiliation(s)
- Etmar Bulk
- Institute of Physiology II, University of Münster, Münster, Germany.
| | | | - Albrecht Schwab
- Institute of Physiology II, University of Münster, Münster, Germany
| |
Collapse
|
23
|
Zhao H, Wang Y, Ren X. Nicotine promotes the development of non-small cell lung cancer through activating LINC00460 and PI3K/Akt signaling. Biosci Rep 2019; 39:BSR20182443. [PMID: 31123168 PMCID: PMC6554215 DOI: 10.1042/bsr20182443] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2019] [Revised: 05/08/2019] [Accepted: 05/21/2019] [Indexed: 12/24/2022] Open
Abstract
Objective: Nicotine, the main ingredient in tobacco, is identified to facilitate tumorigenesis and accelerate metastasis in tumor. Studies in recent years have reported that long intergenic non-protein coding RNA 460 (LINC00460) is strongly associated with lung cancer poor prognosis and nicotine dependence. Nonetheless, it is unclear whether nicotine promotes the development of lung cancer through activation of LINC00460. Methods: We determined that LINC00460 expression in lung cancer tissues and the prognosis in patients with non-small cell lung carcinoma (NSCLC) using Gene Expression Profiling Interactive Analysis (GEPIA) website and The Cancer Genome Atlas (TCGA) database. Through in vitro experiments, we studied the effects of nicotine on LINC00460 in NSCLC cells lines using Cell Counting Kit-8 (CCK-8), transwell test, flow cytometry, quantitative reverse-transcription polymerase chain reaction (qRT-PCR) and Western blot assays. Results: We identified the significant up-regulated expression level of LINC00460 in NSCLC tissues and cell lines, especially, the negative correlation of LINC00460 expression level with overall survival (OS). In in vitro experiments, LINC00460 was overexpressed in NSCLC cell lines under nicotine stimulation. Nicotine could relieve the effect of LINC00460 knockdown on NSCLC cell proliferation, migration and apoptosis. The same influence was observed on PI3K/Akt signaling pathway. Conclusions: In summary, this is the first time to examine the potential roles of LINC00460 in lung cancer cell proliferation, migration and apoptosis induced by nicotine. This may help to develop novel therapeutic strategies for the prevention and treatment of metastatic tumors from cigarette smoke-caused lung cancer by blocking the nicotine-activated LINC00460 pathway.
Collapse
Affiliation(s)
- Hongying Zhao
- Oncology Department, Tianjin Medical University Cancer Institute and Hospital, Tianjin, P.R. China
| | - Yu Wang
- Department of Gerneral Surgery, Xuzhou Cancer Hospital, Xuzhou, 221000 Jiangsu, P.R. China
| | - Xiubao Ren
- Oncology Department, Tianjin Medical University Cancer Institute and Hospital, Tianjin, P.R. China
| |
Collapse
|
24
|
Liu Y, Qian J, Sun Z, Zhangsun D, Luo S. Cervical Cancer Correlates with the Differential Expression of Nicotinic Acetylcholine Receptors and Reveals Therapeutic Targets. Mar Drugs 2019; 17:md17050256. [PMID: 31035425 PMCID: PMC6562638 DOI: 10.3390/md17050256] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2019] [Revised: 04/22/2019] [Accepted: 04/23/2019] [Indexed: 01/02/2023] Open
Abstract
Nicotinic acetylcholine receptors (nAChRs) are associated with various cancers, but the relation between nAChRs and cervical cancer remains unclear. Therefore, this study investigated the differential expression of nAChR subunits in human cervical cancer cell lines (SiHa, HeLa, and CaSki) and in normal ectocervical cell lines (Ect1/E6E7) at mRNA and protein levels. Two specific nAChR subtype blockers, αO-conotoxin GeXIVA and α-conotoxin TxID, were then selected to treat different human cervical cancer cell lines with specific nAChR subtype overexpression. The results showed that α3, α9, α10, and β4 nAChR subunits were overexpressed in SiHa cells compared with that in normal cells. α9 and α10 nAChR subunits were overexpressed in CaSki cells. α*-conotoxins that targeted either α9α10 or α3β4 nAChR were able to significantly inhibit cervical cancer cell proliferation. These findings may provide a basis for new targets for cervical cancer targeted therapy.
Collapse
Affiliation(s)
- Yiqiao Liu
- Key Laboratory of Tropical Biological Resources of Ministry of Education, Key Lab for Marine Drugs of Haikou, Hainan University, Haikou 570228, Hainan, China.
| | - Jiang Qian
- Key Laboratory of Tropical Biological Resources of Ministry of Education, Key Lab for Marine Drugs of Haikou, Hainan University, Haikou 570228, Hainan, China.
| | - Zhihua Sun
- Key Laboratory of Tropical Biological Resources of Ministry of Education, Key Lab for Marine Drugs of Haikou, Hainan University, Haikou 570228, Hainan, China.
| | - Dongting Zhangsun
- Key Laboratory of Tropical Biological Resources of Ministry of Education, Key Lab for Marine Drugs of Haikou, Hainan University, Haikou 570228, Hainan, China.
| | - Sulan Luo
- Key Laboratory of Tropical Biological Resources of Ministry of Education, Key Lab for Marine Drugs of Haikou, Hainan University, Haikou 570228, Hainan, China.
| |
Collapse
|
25
|
TRPC channels mediated calcium entry is required for proliferation of human airway smooth muscle cells induced by nicotine-nAChR. Biochimie 2019; 158:139-148. [DOI: 10.1016/j.biochi.2018.12.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Accepted: 12/09/2018] [Indexed: 01/06/2023]
|
26
|
Cingir Koker S, Jahja E, Shehwana H, Keskus AG, Konu O. Cholinergic Receptor Nicotinic Alpha 5 (CHRNA5) RNAi is associated with cell cycle inhibition, apoptosis, DNA damage response and drug sensitivity in breast cancer. PLoS One 2018; 13:e0208982. [PMID: 30543688 PMCID: PMC6292578 DOI: 10.1371/journal.pone.0208982] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2018] [Accepted: 11/28/2018] [Indexed: 12/15/2022] Open
Abstract
Cholinergic Receptor Nicotinic Alpha 5 (CHRNA5) is an important susceptibility locus for nicotine addiction and lung cancer. Depletion of CHRNA5 has been associated with reduced cell viability, increased apoptosis and alterations in cellular motility in different cancers yet not in breast cancer. Herein we first showed the expression of CHRNA5 was variable and positively correlated with the fraction of total genomic alterations in breast cancer cell lines and tumors indicating its potential role in DNA damage response (DDR). Next, we demonstrated that silencing of CHRNA5 expression in MCF7 breast cancer cell line by RNAi affected expression of genes involved in cytoskeleton, TP53 signaling, DNA synthesis and repair, cell cycle, and apoptosis. The transcription profile of CHRNA5 depleted MCF7 cells showed a significant positive correlation with that of A549 lung cancer cell line while exhibiting a negative association with the CHRNA5 co-expression profile obtained from Cancer Cell Line Encylopedia (CCLE). Moreover, it exhibited high similarities with published MCF7 expression profiles obtained from exposure to TP53 inducer nutlin-3a and topoisomerase inhibitors. We then demonstrated that CHRNA5 siRNA treatment reduced cell viability and DNA synthesis indicating G1 arrest while it significantly increased apoptotic sub-G1 cell population. Accordingly, we observed lower levels of phosphorylated RB (Ser807/811) and an increased BAX/BCL2 ratio in RNAi treated MCF7 cells. We also showed that CHRNA5 RNAi transcriptome correlated negatively with DDR relevant gene expression profile in breast cancer gene expression datasets while the coexposure to topoisomerase inhibitors in the presence of CHRNA5 RNAi enhanced chemosensitivity potentially due to reduced DDR. CHRNA5 RNAi consistently lowered total CHEK1 mRNA and protein levels as well as phosphorylated CHEK1 (Ser345) in MCF7 cells. We also detected a significant positive correlation between the expression levels of CHRNA5 and CHEK1 in CCLE, TCGA and METABRIC breast cancer datasets. Our study suggests CHRNA5 RNAi is associated with cell cycle inhibition, apoptosis as well as reduced DDR and increased drug sensitivity in breast cancer yet future studies are warranted since dose- and cell line-specific differences exist in response to CHRNA5 depletion. Gene expression microarray data can be accessed from GEO database under the accession number GSE89333.
Collapse
Affiliation(s)
- Sahika Cingir Koker
- Department of Molecular Biology and Genetics, Faculty of Science, Bilkent University, Ankara, Turkey
| | - Ermira Jahja
- Department of Molecular Biology and Genetics, Faculty of Science, Bilkent University, Ankara, Turkey
| | - Huma Shehwana
- Department of Molecular Biology and Genetics, Faculty of Science, Bilkent University, Ankara, Turkey
- Department of Multidisciplinary Studies, National University of Medical Sciences, Rawalpindi, Pakistan
| | - Ayse Gokce Keskus
- Interdisciplinary Neuroscience Program, Bilkent University, Ankara, Turkey
| | - Ozlen Konu
- Department of Molecular Biology and Genetics, Faculty of Science, Bilkent University, Ankara, Turkey
- Interdisciplinary Neuroscience Program, Bilkent University, Ankara, Turkey
- UNAM-Institute of Materials Science and Nanotechnology, Ankara, Turkey
| |
Collapse
|
27
|
Abstract
The neurotransmitter acetylcholine (ACh) acts as an autocrine growth factor for human lung cancer. Several lines of evidence show that lung cancer cells express all of the proteins required for the uptake of choline (choline transporter 1, choline transporter-like proteins) synthesis of ACh (choline acetyltransferase, carnitine acetyltransferase), transport of ACh (vesicular acetylcholine transport, OCTs, OCTNs) and degradation of ACh (acetylcholinesterase, butyrylcholinesterase). The released ACh binds back to nicotinic (nAChRs) and muscarinic receptors on lung cancer cells to accelerate their proliferation, migration and invasion. Out of all components of the cholinergic pathway, the nAChR-signaling has been studied the most intensely. The reason for this trend is due to genome-wide data studies showing that nicotinic receptor subtypes are involved in lung cancer risk, the relationship between cigarette smoke and lung cancer risk as well as the rising popularity of electronic cigarettes considered by many as a "safe" alternative to smoking. There are a small number of articles which review the contribution of the other cholinergic proteins in the pathophysiology of lung cancer. The primary objective of this review article is to discuss the function of the acetylcholine-signaling proteins in the progression of lung cancer. The investigation of the role of cholinergic network in lung cancer will pave the way to novel molecular targets and drugs in this lethal malignancy.
Collapse
|
28
|
Zoli M, Pucci S, Vilella A, Gotti C. Neuronal and Extraneuronal Nicotinic Acetylcholine Receptors. Curr Neuropharmacol 2018; 16:338-349. [PMID: 28901280 PMCID: PMC6018187 DOI: 10.2174/1570159x15666170912110450] [Citation(s) in RCA: 159] [Impact Index Per Article: 26.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2017] [Revised: 08/08/2017] [Accepted: 09/03/2017] [Indexed: 02/08/2023] Open
Abstract
Neuronal nicotinic acetylcholine receptors (nAChRs) belong to a super-family of Cys-loop ligand-gated ion chan-nels that respond to endogenous acetylcholine (ACh) or other cholinergic ligands. These receptors are also the targets of drugs such as nicotine (the main addictive agent delivered by cigarette smoke) and are involved in a variety of physiological and pathophysiological processes. Numerous studies have shown that the expression and/or function of nAChRs is com-promised in many neurological and psychiatric diseases. Furthermore, recent studies have shown that neuronal nAChRs are found in a large number of non-neuronal cell types in-cluding endothelial cells, glia, immune cells, lung epithelia and cancer cells where they regulate cell differentiation, prolifera-tion and inflammatory responses. The aim of this review is to describe the most recent findings concerning the structure and function of native nAChRs inside and outside the nervous system.
Collapse
Affiliation(s)
- Michele Zoli
- Department of Biomedical, Metabolic and Neural Sciences, Center for Neuroscience and Neurotechnology, University of Modena and Reggio Emilia, Modena, Italy
| | - Susanna Pucci
- CNR, Neuroscience Institute-Milano, Biometra University of Milan, Milan, Italy
| | - Antonietta Vilella
- Department of Biomedical, Metabolic and Neural Sciences, Center for Neuroscience and Neurotechnology, University of Modena and Reggio Emilia, Modena, Italy
| | - Cecilia Gotti
- CNR, Neuroscience Institute-Milano, Biometra University of Milan, Milan, Italy
| |
Collapse
|
29
|
Kyte SL, Gewirtz DA. The Influence of Nicotine on Lung Tumor Growth, Cancer Chemotherapy, and Chemotherapy-Induced Peripheral Neuropathy. J Pharmacol Exp Ther 2018; 366:303-313. [PMID: 29866790 PMCID: PMC6041956 DOI: 10.1124/jpet.118.249359] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2018] [Accepted: 05/30/2018] [Indexed: 01/03/2023] Open
Abstract
Studies in animal models have suggested that nicotine, an agonist of nicotinic acetylcholine receptors, may have the potential to prevent and/or reverse the peripheral neuropathy induced by cancer chemotherapeutic drugs, such as paclitaxel and oxaliplatin. However, a large body of evidence suggests that nicotine may also stimulate lung tumor growth and/or interfere with the effectiveness of cancer chemotherapy. Whereas the reported proliferative effects of nicotine are highly variable, the antagonism of antitumor drug efficacy is more consistent, although this latter effect has been demonstrated primarily in cell culture studies. In contrast, in vitro and in vivo studies from our own laboratory indicate that nicotine fails to enhance the growth of nonsmall cell lung cancer cells or attenuate the effects of chemotherapy (paclitaxel). Given the inconsistencies in the literature, coupled with our own findings, the weight of evidence suggests that caution may be warranted in proposing to use nicotine to mitigate chemotherapy-induced peripheral neuropathy in cancer patients receiving chemotherapy. Conversely, clinical trials could be performed in patients who have completed therapy and are considered to be disease-free to determine whether nicotine, in the form of commercially available patches or gum, is effective in alleviating peripheral neuropathy symptoms.
Collapse
Affiliation(s)
- S Lauren Kyte
- Department of Pharmacology and Toxicology (S.L.K., D.A.G.) and Massey Cancer Center (D.A.G.), Virginia Commonwealth University, Richmond, Virginia
| | - David A Gewirtz
- Department of Pharmacology and Toxicology (S.L.K., D.A.G.) and Massey Cancer Center (D.A.G.), Virginia Commonwealth University, Richmond, Virginia
| |
Collapse
|
30
|
Wisniewski DJ, Ma T, Schneider A. Nicotine induces oral dysplastic keratinocyte migration via fatty acid synthase-dependent epidermal growth factor receptor activation. Exp Cell Res 2018; 370:343-352. [PMID: 29966661 DOI: 10.1016/j.yexcr.2018.06.036] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2018] [Revised: 06/06/2018] [Accepted: 06/28/2018] [Indexed: 12/14/2022]
Abstract
Despite advances in diagnostic and therapeutic management, oral squamous cell carcinoma (OSCC) patient survival rates have remained relatively unchanged. Thus, identifying early triggers of malignant progression is critical to prevent OSCC development. Traditionally, OSCC initiation is elicited by the frequent and direct exposure to multiple tobacco-derived carcinogens, and not by the nicotine contained in tobacco products. However, other nicotine-containing products, especially the increasingly popular electronic cigarettes (e-cigs), have unknown effects on the progression of undiagnosed tobacco-induced oral premalignant lesions, specifically in regard to the effects of nicotine. Overexpression of fatty acid synthase (FASN), a key hepatic de novo lipogenic enzyme, is linked to poor OSCC patient survival. Nicotine upregulates hepatic FASN, but whether this response occurs in oral dysplastic keratinocytes is unknown. We hypothesized that in oral dysplastic keratinocytes, nicotine triggers a migratory phenotype through FASN-dependent epidermal growth factor receptor (EGFR) activation, a common pro-oncogenic event supporting oral carcinogenesis. We report that in oral dysplastic cells, nicotine markedly upregulates FASN leading to FASN-dependent EGFR activation and increased cell migration. These results raise potential concerns about e-cig safety, especially when used by former tobacco smokers with occult oral premalignant lesions where nicotine could trigger oncogenic signals commonly associated with malignant progression.
Collapse
Affiliation(s)
- David J Wisniewski
- Department of Oncology and Diagnostic Sciences, School of Dentistry, University of Maryland, Baltimore, MD, USA
| | - Tao Ma
- Department of Oncology and Diagnostic Sciences, School of Dentistry, University of Maryland, Baltimore, MD, USA
| | - Abraham Schneider
- Department of Oncology and Diagnostic Sciences, School of Dentistry, University of Maryland, Baltimore, MD, USA; Marlene and Stewart Greenebaum Comprehensive Cancer Center, Program in Oncology, School of Medicine, University of Maryland, Baltimore, MD, USA.
| |
Collapse
|
31
|
Li H, Ma N, Wang J, Wang Y, Yuan C, Wu J, Luo M, Yang J, Chen J, Shi J, Liu X. Nicotine Induces Progressive Properties of Lung Adenocarcinoma A549 Cells by Inhibiting Cystic Fibrosis Transmembrane Conductance Regulator (CFTR) Expression and Plasma Membrane Localization. Technol Cancer Res Treat 2018; 17:1533033818809984. [PMID: 30384810 PMCID: PMC6259057 DOI: 10.1177/1533033818809984] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2018] [Revised: 09/04/2018] [Accepted: 10/04/2018] [Indexed: 12/11/2022] Open
Abstract
Lung cancer remains one of the most common cancer-related deaths worldwide. The cigarette smoking is a risk factor for lung cancer development. Interestingly, the cystic fibrosis transmembrane conductance regulator encoded by CFTR gene, an ATP-binding cassette transporter-class ion channel that conducts chloride and bicarbonate anions across membrane of epithelial cells, has recently been suggested to play a role in the development and progression of many types of cancer. It has been well-documented that mutations of CFTR gene are the cause of cystic fibrosis, the most common fatal hereditary lung disease in Caucasian population; the function of cystic fibrosis transmembrane conductance regulator in the development of lung cancer however has not yet been established. In the present study, we aimed to interrogate the impact of cystic fibrosis transmembrane conductance regulator on the nicotine-promoted progressive potency in lung adenocarcinoma cells by assessing capacities of cystic fibrosis transmembrane conductance regulator to cell migration, invasion, and clonogenicity and the expression of markers of cell proliferation and lung stem cell-related transcription factors in lung adenocarcinoma A549 cells. The exposure of nicotine exhibited an ability to enhance progressive properties of adenocarcinoma cells including A549 cells, HCC827 cells, and PC-9 cells, alone with an inhibition of cystic fibrosis transmembrane conductance regulator protein expression. Remarkably, an overexpression of cystic fibrosis transmembrane conductance regulator significantly inhibited the progressive potency of A549 cells, including capacity of cell migration and invasion and clonogenicity, along with a decreased expression of cell proliferative markers Ki67, p63, and proliferating cell nuclear antigen, and cancer stem cell marker CD133, stem cell pluripotency-related transcription factors octamer-binding transcription factor ¾, and sex-determining region Y-box 2, regardless of the presence of nicotine. In contrast, opposite effects were observed in A549 cells that the cystic fibrosis transmembrane conductance regulator was knockdown by short hairpin RNA to cystic fibrosis transmembrane conductance regulator. This study thus suggests that cystic fibrosis transmembrane conductance regulator may play a tumor suppressor role in lung cancer cells, which may be a novel therapeutic target warranted for further investigation.
Collapse
Affiliation(s)
- Hui Li
- College of Clinical Medicine, Ningxia Medical University, Yinchuan, Ningxia,
China
- General Hospital of Ningxia Medical University, Yinchuan, Ningxia,
China
| | - Ningxia Ma
- College of Clinical Medicine, Ningxia Medical University, Yinchuan, Ningxia,
China
- General Hospital of Ningxia Medical University, Yinchuan, Ningxia,
China
| | - Jing Wang
- Center of Laboratory Medicine, People’s Hospital of Ningxia Hui Autonomous
Region, Yinchuan, Ningxia, China
| | - Ying Wang
- College of Clinical Medicine, Ningxia Medical University, Yinchuan, Ningxia,
China
- General Hospital of Ningxia Medical University, Yinchuan, Ningxia,
China
| | - Chao Yuan
- College of Life Science, Ningxia University, Yinchuan, Ningxia, China
| | - Jing Wu
- College of Clinical Medicine, Ningxia Medical University, Yinchuan, Ningxia,
China
| | - Meihui Luo
- College of Life Science, Ningxia University, Yinchuan, Ningxia, China
| | - Jiali Yang
- General Hospital of Ningxia Medical University, Yinchuan, Ningxia,
China
| | - Juan Chen
- General Hospital of Ningxia Medical University, Yinchuan, Ningxia,
China
| | - Juan Shi
- General Hospital of Ningxia Medical University, Yinchuan, Ningxia,
China
| | - Xiaoming Liu
- College of Clinical Medicine, Ningxia Medical University, Yinchuan, Ningxia,
China
- General Hospital of Ningxia Medical University, Yinchuan, Ningxia,
China
- College of Life Science, Ningxia University, Yinchuan, Ningxia, China
| |
Collapse
|
32
|
Mucchietto V, Fasoli F, Pucci S, Moretti M, Benfante R, Maroli A, Di Lascio S, Bolchi C, Pallavicini M, Dowell C, McIntosh M, Clementi F, Gotti C. α9- and α7-containing receptors mediate the pro-proliferative effects of nicotine in the A549 adenocarcinoma cell line. Br J Pharmacol 2017; 175:1957-1972. [PMID: 28726253 DOI: 10.1111/bph.13954] [Citation(s) in RCA: 60] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2017] [Revised: 06/14/2017] [Accepted: 07/07/2017] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND AND PURPOSE Tobacco smoke contains many classes of carcinogens and although nicotine is unable to initiate tumourigenesis in humans and rodents, it promotes tumour growth and metastasis in lung tumours by acting on neuronal nicotinic ACh receptors (nAChRs). The aim of this study was to identify molecularly, biochemically and pharmacologically which nAChR subtypes are expressed and functionally activated by nicotine in lung cancer cell lines. EXPERIMENTAL APPROACH We used A549 and H1975 adenocarcinoma cell lines derived from lung tumours to test the in vitro effects of nicotine, and nAChR subtype-specific peptides and compounds. KEY RESULTS The two adenocarcinoma cell lines express distinctive nAChR subtypes, and this affects their nicotine-induced proliferation. In A549 cells, nAChRs containing the α7 or α9 subunits not only regulate nicotine-induced cell proliferation but also the activation of the Akt and ERK pathways. Blocking these nAChRs by means of subtype-specific peptides, or silencing their expression by means of subunit-specific siRNAs, abolishes nicotine-induced proliferation and signalling. Moreover, we found that the α7 antagonist MG624 also acts on α9-α10 nAChRs, blocks the effects of nicotine on A549 cells and has dose-dependent cytotoxic activity. CONCLUSIONS AND IMPLICATIONS These results highlight the pathophysiological role of α7- and α9-containing receptors in promoting non-small cell lung carcinoma cell growth and intracellular signalling and provide a framework for the development of new drugs that specifically target the receptors expressed in lung tumours. LINKED ARTICLES This article is part of a themed section on Nicotinic Acetylcholine Receptors. To view the other articles in this section visit http://onlinelibrary.wiley.com/doi/10.1111/bph.v175.11/issuetoc.
Collapse
Affiliation(s)
- Vanessa Mucchietto
- CNR, Institute of Neuroscience, Milan, Italy.,Department of Medical Biotechnology and Translational Medicine, Università degli Studi di Milano, Milan, Italy
| | | | | | - Milena Moretti
- CNR, Institute of Neuroscience, Milan, Italy.,Department of Medical Biotechnology and Translational Medicine, Università degli Studi di Milano, Milan, Italy
| | - Roberta Benfante
- CNR, Institute of Neuroscience, Milan, Italy.,Department of Medical Biotechnology and Translational Medicine, Università degli Studi di Milano, Milan, Italy
| | - Annalisa Maroli
- Department of Medical Biotechnology and Translational Medicine, Università degli Studi di Milano, Milan, Italy
| | - Simona Di Lascio
- Department of Medical Biotechnology and Translational Medicine, Università degli Studi di Milano, Milan, Italy
| | - Cristiano Bolchi
- Department of Pharmaceutical Science, Università degli Studi di Milano, Milan, Italy
| | - Marco Pallavicini
- Department of Pharmaceutical Science, Università degli Studi di Milano, Milan, Italy
| | - Cheryl Dowell
- Department of Biology, University of Utah, Salt Lake City, UT, USA
| | - Michael McIntosh
- Department of Biology, University of Utah, Salt Lake City, UT, USA.,George E. Wahlen Veterans Affairs Medical Center, Salt Lake City, UT, USA.,Department of Psychiatry, University of Utah, Salt Lake City, UT, USA
| | - Francesco Clementi
- CNR, Institute of Neuroscience, Milan, Italy.,Department of Medical Biotechnology and Translational Medicine, Università degli Studi di Milano, Milan, Italy
| | - Cecilia Gotti
- CNR, Institute of Neuroscience, Milan, Italy.,Department of Medical Biotechnology and Translational Medicine, Università degli Studi di Milano, Milan, Italy
| |
Collapse
|
33
|
Sun HJ, Jia YF, Ma XL. Alpha5 Nicotinic Acetylcholine Receptor Contributes to Nicotine-Induced Lung Cancer Development and Progression. Front Pharmacol 2017; 8:573. [PMID: 28878681 PMCID: PMC5572410 DOI: 10.3389/fphar.2017.00573] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2017] [Accepted: 08/09/2017] [Indexed: 12/14/2022] Open
Abstract
Nicotine and nicotinic acetylcholine receptors (nAChRs) are considered to be involved in lung cancer risk, onset and progression, but their precise physiological roles in these contexts remain unclear. Our previous studies suggested that α5-nAChR mediates nicotine-induced lung cancer cell proliferation, migration, and invasion in vitro. In this study, we aimed to determine the role of α5-nAChR in the development and progression of non-small cell lung cancer (NSCLC). Our microarray results reveal that knockdown of the CHRNA5 gene encoding α5-nAChR significantly modulates key pathways including the cell cycle, DNA replication, pathway in cancer. α5-nAChR knockdown in cultured A549 cells affected cell cycle distribution, apoptosis, and cyclin expression. In vivo, α5-nAChR silencing inhibited the growth of lung tumors, especially in the context of nicotine exposure. Importantly, α5-nAChR expression in patient tumors correlated with the primary T stage, N stage, and reduced survival time. These results reveal that α5-nAChR silencing inhibits the progression of nicotine-related NSCLC, making this receptor a potential pharmacological target for the treatment of nicotine-related lung carcinogenesis.
Collapse
Affiliation(s)
- Hai-Ji Sun
- Key Laboratory of Animal Resistance Biology of Shandong Province, College of Life Sciences, Shandong Normal UniversityJinan, China
| | - Yan-Fei Jia
- Central Laboratory, Jinan Central Hospital Affiliated to Shandong UniversityJinan, China
| | - Xiao-Li Ma
- Central Laboratory, Jinan Central Hospital Affiliated to Shandong UniversityJinan, China
| |
Collapse
|
34
|
Wang C, Gu W, Zhang Y, Ji Y, Wen Y, Xu X. Nicotine promotes cervical carcinoma cell line HeLa migration and invasion by activating PI3k/Akt/NF-κB pathway in vitro. ACTA ACUST UNITED AC 2017; 69:402-407. [PMID: 28385482 DOI: 10.1016/j.etp.2017.03.006] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2016] [Revised: 02/08/2017] [Accepted: 03/21/2017] [Indexed: 11/30/2022]
Abstract
Cigarette smoking is one of highly risk factors of cervical cancer. Recently nicotine has been reported to increase proliferation and invasion in some smoking related cancers, like non-small cell lung cancer and esophageal squamous cell cancer. However, the effects and mechanisms of nicotine stimulation on cervical cancer cells are not clear. Here, we investigated the effects and mechanisms of nicotine stimulation on HeLa cells in vitro. In our study, we found that nicotine could accelerate HeLa cells migration and invasion, activate PI3K/Akt and NF-κB pathways and increase the expression of Vimentin in vitro. Moreover, we demonstrated that the specific PI3K inhibitor LY294002 could reverse nicotine-induced cell migration and invasion, NF-κB activation and up-regulation of Vimentin. Inhibition of NF-κB by Pyrrolidine dithiocarbamate (PDTC) also antagonized nicotine-induced cell migration, invasion and up-regulation of Vimentin. Simply put, these findings suggest that nicotine promotes cervical carcinoma cell line HeLa migration and invasion by activating PI3k/Akt/NF-κB pathway in vitro.
Collapse
Affiliation(s)
- Chengze Wang
- School of Stomatology, Shandong University, PR China; Shandong Provincial Key Laboratory of Oral Tissue Regeneration, PR China
| | - Weiting Gu
- Qilu hospital of Shandong University, PR China
| | - Yunpeng Zhang
- School of Stomatology, Shandong University, PR China; Shandong Provincial Key Laboratory of Oral Tissue Regeneration, PR China
| | - Yawen Ji
- School of Stomatology, Shandong University, PR China; Shandong Provincial Key Laboratory of Oral Tissue Regeneration, PR China
| | - Yong Wen
- School of Stomatology, Shandong University, PR China; Shandong Provincial Key Laboratory of Oral Tissue Regeneration, PR China.
| | - Xin Xu
- School of Stomatology, Shandong University, PR China; Shandong Provincial Key Laboratory of Oral Tissue Regeneration, PR China.
| |
Collapse
|
35
|
Zhang Y, Jia Y, Li P, Li H, Xiao D, Wang Y, Ma X. Reciprocal activation of α5-nAChR and STAT3 in nicotine-induced human lung cancer cell proliferation. J Genet Genomics 2017; 44:355-362. [PMID: 28750889 DOI: 10.1016/j.jgg.2017.03.003] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2016] [Revised: 03/02/2017] [Accepted: 03/17/2017] [Indexed: 01/26/2023]
Abstract
Cigarette smoking is the top environmental risk factor for lung cancer. Nicotine, the addictive component of cigarettes, induces lung cancer cell proliferation, invasion and migration via the activation of nicotinic acetylcholine receptors (nAChRs). Genome-wide association studies (GWAS) show that CHRNA5 gene encoding α5-nAChR is especially relevant to lung cancer. However, the mechanism of this subunit in lung cancer is not clear. In the present study, we demonstrate that the expression of α5-nAChR is correlated with phosphorylated STAT3 (pSTAT3) expression, smoking history and lower survival of non-small cell lung cancer (NSCLC) samples. Nicotine increased the levels of α5-nAChR mRNA and protein in NSCLC cell lines and activated the JAK2/STAT3 signaling cascade. Nicotine-induced activation of JAK2/STAT3 signaling was inhibited by the silencing of α5-nAChR. Characterization of the CHRNA5 promoter revealed four STAT3-response elements. ChIP assays confirmed that the CHRNA5 promoter contains STAT3 binding sites. By silencing STAT3 expression, nicotine-induced upregulation of α5-nAChR was suppressed. Downregulation of α5-nAChR and/or STAT3 expression inhibited nicotine-induced lung cancer cell proliferation. These results suggest that there is a feedback loop between α5-nAChR and STAT3 that contributes to the nicotine-induced tumor cell proliferation, which indicates that α5-nAChR is an important therapeutic target involved in tobacco-associated lung carcinogenesis.
Collapse
Affiliation(s)
- Yao Zhang
- Central Laboratory, Jinan Central Hospital Affiliated to Shandong University, Jinan 250100, China
| | - Yanfei Jia
- Central Laboratory, Jinan Central Hospital Affiliated to Shandong University, Jinan 250100, China
| | - Ping Li
- Central Laboratory, Jinan Central Hospital Affiliated to Shandong University, Jinan 250100, China
| | - Huanjie Li
- Central Laboratory, Jinan Central Hospital Affiliated to Shandong University, Jinan 250100, China; State Key Laboratory of Microbial Technology, Shandong University, Jinan 250100, China
| | - Dongjie Xiao
- Central Laboratory, Jinan Central Hospital Affiliated to Shandong University, Jinan 250100, China
| | - Yunshan Wang
- Central Laboratory, Jinan Central Hospital Affiliated to Shandong University, Jinan 250100, China
| | - Xiaoli Ma
- Central Laboratory, Jinan Central Hospital Affiliated to Shandong University, Jinan 250100, China.
| |
Collapse
|
36
|
Schaal C, Chellappan S. Nicotine-Mediated Regulation of Nicotinic Acetylcholine Receptors in Non-Small Cell Lung Adenocarcinoma by E2F1 and STAT1 Transcription Factors. PLoS One 2016; 11:e0156451. [PMID: 27228072 PMCID: PMC4882068 DOI: 10.1371/journal.pone.0156451] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2016] [Accepted: 05/14/2016] [Indexed: 12/19/2022] Open
Abstract
Cigarette smoking is the major risk factor for non-small cell lung cancer (NSCLC), which accounts for 80% of all lung cancers. Nicotine, the addictive component of tobacco smoke, can induce proliferation, migration, invasion, epithelial-mesenchymal transition (EMT), angiogenesis, and survival in NSCLC cell lines, as well as growth and metastasis of NSCLC in mice. This nicotine-mediated tumor progression is facilitated through activation of nicotinic acetylcholine receptors (nAChRs), specifically the α7 subunit; however, how the α7 nAChR gene is regulated in lung adenocarcinoma is not fully clear. Here we demonstrate that the α7 nAChR gene promoter is differentially regulated by E2F and STAT transcription factors through a competitive interplay; E2F1 induces the promoter, while STAT transcription factors repress it by binding to an overlapping site at a region -294 through -463bp upstream of the transcription start site. Treatment of cells with nicotine induced the mRNA and protein levels of α7 nAChR; this could be abrogated by treatment with inhibitors targeting Src, PI3K, MEK, α7 nAChR, CDK4/6 or a disruptor of the Rb-Raf-1 interaction. Further, nicotine–mediated induction of α7 nAChR was reduced when E2F1 was depleted and in contrast elevated when STAT1 was depleted by siRNAs. Interestingly, extracts from e-cigarettes, which have recently emerged as healthier alternatives to traditional cigarette smoking, can also induce α7 nAChR expression in a manner similar to nicotine. These results suggest an autoregulatory feed-forward loop that induces the levels of α7 nAChR upon exposure to nicotine, which enhances the strength of the signal. It can be imagined that such an induction of α7 nAChR contributes to the tumor-promoting functions of nicotine.
Collapse
Affiliation(s)
- Courtney Schaal
- Department of Tumor Biology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, Florida, United States of America
- Cancer Biology PhD Program, Department of Cell Biology, Microbiology, and Molecular Biology, University of South Florida, Tampa, Florida, United States of America
| | - Srikumar Chellappan
- Department of Tumor Biology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, Florida, United States of America
- * E-mail:
| |
Collapse
|
37
|
Chen W, Wang J, Liu S, Wang S, Cheng Y, Zhou W, Duan C, Zhang C. MicroRNA-361-3p suppresses tumor cell proliferation and metastasis by directly targeting SH2B1 in NSCLC. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2016; 35:76. [PMID: 27164951 PMCID: PMC4863317 DOI: 10.1186/s13046-016-0357-4] [Citation(s) in RCA: 71] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/24/2016] [Accepted: 05/05/2016] [Indexed: 12/19/2022]
Abstract
Background Lung cancer is the most common malignancies worldwide. However, the detailed molecular mechanisms underlying lung cancer progression are still not completely clear. MicroRNAs are small noncoding RNAs which occupy a crucial role of cancer metastasis. Accumulating evidence suggests that miR-361 plays important roles in human carcinogenesis. However, its precise biological role remains largely elusive, especially in lung cancer. This study examined the role of miR-361-3p in non-small cell lung cancer (NSCLC). Methods Real-time quantitative PCR (qRT-PCR) was used to analyze the expression of miR-361-3p in NSCLC tissue and in compared adjacent non-cancerous tissues. The effect of miR-361-3p on proliferation was evaluated by CCK8 and colony formation assays. The effect of miR-361-3p on migration and invasion was evaluated by transwell assays. Western blotting and immunohistochemical staining were applied to analyze the expression of target proteins and downstream molecule, and the luciferase reporter assay to assess the target genes of miR-361-3p in non-small cell lung cancer cells. Results miR-361-3p was significantly decreased in NSCLC tissue and cell lines, and its expression levels were highly correlated with lymph node metastasis (P < 0.01) and TNM stages (P < 0.05). Down-regulation of miR-361-3p promoted cell growth, proliferation, colony formation, invasion and migration in vitro, and promoted proliferation and metastasis in vivo (P < 0.01); whereas up-regulation of miR-361-3p had the contrary effects. The luciferase reporter assay showed that SH2B1 was a direct target gene of miR-361-3p. Enforced expression of miR-361-3p inhibited the expression of SH2B1 significantly and the restoration of SH2B1 expression reversed the inhibitory effects of miR-361-3p on NSCLC cell proliferation and metastasis. Conclusions miR-361-3p functions as a novel tumor suppressor in NSCLC and the anti-oncogenic activity may involve its inhibition of the target gene SH2B1. These findings suggest the possibility for miR-361-3p as a therapeutic target in NSCLC.
Collapse
Affiliation(s)
- Wei Chen
- Department of Thoracic Surgery, Xiangya Hospital, Central South University, Xiangya Road 87th, Changsha, 410008, Hunan, PR China
| | - Jun Wang
- Key Laboratory of Cancer Proteomics of Chinese Ministry of Health, Institute of Medical Sciences, Xiangya Hospital, Central South University, Xiangya Road 87th, Changsha, 410008, Hunan, PR China
| | - Sulai Liu
- Department of Urology Surgery, Xiangya Hospital, Central South University, Xiangya Road 87th, Changsha, 410008, Hunan, PR China
| | - Shaoqiang Wang
- Department of Thoracic Surgery, Xiangya Hospital, Central South University, Xiangya Road 87th, Changsha, 410008, Hunan, PR China
| | - Yuanda Cheng
- Department of Thoracic Surgery, Xiangya Hospital, Central South University, Xiangya Road 87th, Changsha, 410008, Hunan, PR China
| | - Wolong Zhou
- Department of Thoracic Surgery, Xiangya Hospital, Central South University, Xiangya Road 87th, Changsha, 410008, Hunan, PR China
| | - Chaojun Duan
- Key Laboratory of Cancer Proteomics of Chinese Ministry of Health, Institute of Medical Sciences, Xiangya Hospital, Central South University, Xiangya Road 87th, Changsha, 410008, Hunan, PR China
| | - Chunfang Zhang
- Department of Thoracic Surgery, Xiangya Hospital, Central South University, Xiangya Road 87th, Changsha, 410008, Hunan, PR China.
| |
Collapse
|
38
|
Jia Y, Sun H, Wu H, Zhang H, Zhang X, Xiao D, Ma X, Wang Y. Nicotine Inhibits Cisplatin-Induced Apoptosis via Regulating α5-nAChR/AKT Signaling in Human Gastric Cancer Cells. PLoS One 2016; 11:e0149120. [PMID: 26909550 PMCID: PMC4765889 DOI: 10.1371/journal.pone.0149120] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2015] [Accepted: 01/15/2016] [Indexed: 12/15/2022] Open
Abstract
Gastric cancer incidence demonstrates a strong etiologic association with smoking. Nicotine, the major component in tobacco, is a survival agonist that inhibits apoptosis induced by certain chemotherapeutic agents, but the precise mechanisms involved remain largely unknown. Recently studies have indicated that α5-nicotinic acetylcholine receptor (α5-nAChR) is highly associated with lung cancer risk and nicotine dependence. Nevertheless, no information has been available about whether nicotine also affects proliferation of human gastric cancer cells through regulation of α5-nAChR. To evaluate the hypothesis that α5-nAChR may play a role in gastric cancer, we investigated its expression in gastric cancer tissues and cell lines. The expression of α5-nAChR increased in gastric cancer tissue compared with para-carcinoma tissues. In view of the results, we proceeded to investigate whether nicotine inhibits cisplatin-induced apoptosis via regulating α5-nAChR in gastric cancer cell. The results showed that nicotine significantly promoted cell proliferation in a dose and time-dependent manner through α5-nAChR activation in human gastric cells. Furthermore, nicotine inhibited apoptosis induced by cisplatin. Silence of α5-nAChR ablated the protective effects of nicotine. However, when co-administrating LY294002, an inhibitor of PI3K/AKT pathway, an increased apoptosis was observed. This effect correlated with the induction of Bcl-2, Bax, Survivin and Caspase-3 by nicotine in gastric cell lines. These results suggest that exposure to nicotine might negatively impact the apoptotic potential of chemotherapeutic drugs and that α5-nAChR/AKT signaling plays a key role in the anti-apoptotic activity of nicotine induced by cisplatin.
Collapse
Affiliation(s)
- Yanfei Jia
- Central Laboratory, Jinan Central Hospital Affiliated to Shandong University, Jinan, China
| | - Haiji Sun
- College of Life Science, Shandong Normal University, Jinan, China
| | - Hongqiao Wu
- Central Laboratory, Jinan Central Hospital Affiliated to Shandong University, Jinan, China
| | - Huilin Zhang
- Central Laboratory, Jinan Central Hospital Affiliated to Shandong University, Jinan, China
| | - Xiuping Zhang
- Central Laboratory, Jinan Central Hospital Affiliated to Shandong University, Jinan, China
| | - Dongjie Xiao
- Central Laboratory, Jinan Central Hospital Affiliated to Shandong University, Jinan, China
| | - Xiaoli Ma
- Central Laboratory, Jinan Central Hospital Affiliated to Shandong University, Jinan, China
- * E-mail: (XM); (YSW)
| | - Yunshan Wang
- Central Laboratory, Jinan Central Hospital Affiliated to Shandong University, Jinan, China
- * E-mail: (XM); (YSW)
| |
Collapse
|
39
|
Chai S, An W, Guo L, Jiang L, Gao Z, Li S. [Effect of Long Non-coding RNA SPRY4-IT1 on Invasion and Migration of A549 Cells]. ZHONGGUO FEI AI ZA ZHI = CHINESE JOURNAL OF LUNG CANCER 2015; 18:487-92. [PMID: 26302345 PMCID: PMC6000226 DOI: 10.3779/j.issn.1009-3419.2015.08.07] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
背景与目的 人长链非编码RNA基因的异常表达与多种肿瘤有关。本研究旨在探讨人长链非编码RNA基因SPRY4-ITl对肺癌细胞A549侵袭和迁移能力的影响及机制。 方法 将SPRY4-ITl转染入肺癌A549细胞系,采用RT-PCR方法检测重组质粒在细胞中表达水平比较;采用MTT和Transwell检测A549细胞侵袭和迁移能力的变化,采用Western blot方法检测SPRY4-ITl对MMP-2和MMP-9蛋白的影响。 结果 转染pcDNA3.1-SPRY4-ITl细胞划痕两侧细胞间距较转染pcDNA3.1细胞明显变窄,其穿膜细胞数为(207 ± 34)个/视野,相比对照组明显增多(P < 0.05),且转染pcDNA3.1-SPRY4-ITl细胞中的基质金属蛋白酶(matrix metalloproteinase, MMP)-2及MMP-9蛋白表达较转染空质粒组均有升高。 结论 在肺癌A549细胞中过表达SPRY4-IT1可增强细胞的侵袭、迁移能力,且细胞内MMP-2及MMP-9表达升高,提示SPRY4-IT1可能通过调控MMP影响肺癌的侵袭和转移能力。
Collapse
Affiliation(s)
- Song Chai
- Cancer Center, The Second Hospital of Hebei Medical University, Shijiazhuang 050000, China
| | - Wenting An
- Cancer Center, The Second Hospital of Hebei Medical University, Shijiazhuang 050000, China
| | - Lili Guo
- Cancer Center, The Second Hospital of Hebei Medical University, Shijiazhuang 050000, China
| | - Le Jiang
- Cancer Center, The Second Hospital of Hebei Medical University, Shijiazhuang 050000, China
| | - Zhisong Gao
- Cancer Center, The Second Hospital of Hebei Medical University, Shijiazhuang 050000, China
| | - Shujun Li
- Cancer Center, The Second Hospital of Hebei Medical University, Shijiazhuang 050000, China
| |
Collapse
|