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Circular RNA circRHOT1 contributes to pathogenesis of non-small cell lung cancer by epigenetically enhancing C-MYC expression through recruiting KAT5. Aging (Albany NY) 2021; 13:20372-20382. [PMID: 34406978 PMCID: PMC8436947 DOI: 10.18632/aging.203417] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Accepted: 05/20/2021] [Indexed: 12/25/2022]
Abstract
Non-small cell lung cancer (NSCLC) one of the most prevalent and severe malignancies globally and the molecular mechanisms of NSCLC are poor understood, limiting the development of diagnostic biomarkers and targeted therapies. Circular RNAs (circRNAs) have been identified as a sort of critical regulator in cancer progression. In this study, we identities the epigenetic regulation function of circular RNA circRHOT1 in promoting NSCLC cell proliferation. We found that circRHOT1 were elevated in the clinical tumor tissues relative to that in the peritumor tissues from NSCLC patients. circRHOT1 was up-regulated in human lung cancer cell lines compared with normal human lung epithelial cell line. MTT assays revealed that the silencing of circRHOT1 by siRNA suppressed cell viabilities of NSCLC cells. Colony formation and Edu assays confirmed that circRHOT1 knockdown attenuated NSCLC cell proliferation in vitro. Meanwhile, the depletion of circRHOT1 induced NSCLC cell apoptosis and cell cycle arrest in vitro. Mechanically, the depletion of circRHOT1 remarkably reduced c-MYC mRNA and protein expression in NSCLC cells. Inhibition of circRHOT1 reduced the enrichment of transcription active marker histone H3 lysine 27 acetylation (H3K27ac) and RNA polymerase II on the promoter of c-MYC. RNA pull down analysis showed that circRHOT1 was able to directly interact with acetyltransferase KAT5 in NSCLC cells. In summary, we concluded that circRHOT1 contributed to pathogenesis of NSCLC by epigenetically enhancing c-MYC expression through recruiting KAT5. CircRHOT1 and KAT5 may be used as the potential targets for NSCLC therapy.
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2
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Macchi C, Favero C, Ceresa A, Vigna L, Conti DM, Pesatori AC, Racagni G, Corsini A, Ferri N, Sirtori CR, Buoli M, Bollati V, Ruscica M. Depression and cardiovascular risk-association among Beck Depression Inventory, PCSK9 levels and insulin resistance. Cardiovasc Diabetol 2020; 19:187. [PMID: 33143700 PMCID: PMC7641831 DOI: 10.1186/s12933-020-01158-6] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Accepted: 10/12/2020] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Depression and cardiovascular disease (CVD) are among the most common causes of disability in high-income countries, depression being associated with a 30% increased risk of future CV events. Depression is twice as common in people with diabetes and is associated with a 60% rise in the incidence of type 2 diabetes, an independent CVD risk factor. Proprotein convertase subtilisin/kexin type 9 (PCSK9), a key regulator of low-density lipoprotein cholesterol, has been related to a large number of CV risk factors, including insulin resistance. Aim of this study was to investigate whether the presence of depression could affect PCSK9 levels in a population of obese subjects susceptible to depressive symptoms and how these changes may mediate a pre-diabetic risk. RESULTS In 389 obese individuals, the Beck Depression Inventory (BDI-II) was significantly associated with PCSK9 levels. For every one-unit increment in BDI-II score, PCSK9 rose by 1.85 ng/mL. Depression was associated also with the HOMA-IR (homeostatic model assessment index of insulin resistance), 11% of this effect operating indirectly via PCSK9. CONCLUSIONS This study indicates a possible mechanism linking depression and insulin resistance, a well-known CV risk factor, providing evidence for a significant role of PCSK9.
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Affiliation(s)
- C Macchi
- Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Milan, Italy
| | - C Favero
- EPIGET Department of Clinical Sciences and Community Health, Università degli Studi di Milano, Milan, Italy
| | - A Ceresa
- Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
| | - L Vigna
- Occupational Medicine Unit, Fondazione Cà Granda, IRCCS Ospedale Maggiore Policlinico, Milan, Italy
| | - D M Conti
- Occupational Medicine Unit, Fondazione Cà Granda, IRCCS Ospedale Maggiore Policlinico, Milan, Italy
| | - A C Pesatori
- EPIGET Department of Clinical Sciences and Community Health, Università degli Studi di Milano, Milan, Italy
| | - G Racagni
- Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Milan, Italy
| | - A Corsini
- Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Milan, Italy
- IRCCS, Multimedica, Sesto San Giovanni (Milan), Italy
| | - N Ferri
- Dipartimento di Scienze del Farmaco, Università degli Studi di Padova, Padua, Italy
| | - C R Sirtori
- Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Milan, Italy
| | - M Buoli
- Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
- Department of Neurosciences and Mental Health, Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - V Bollati
- EPIGET Department of Clinical Sciences and Community Health, Università degli Studi di Milano, Milan, Italy.
| | - M Ruscica
- Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Milan, Italy.
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Zhu H, Shi Y, Jiao X, Yang G, Wang R, Yuan Y. Synergistic antitumor effect of dual PI3K and mTOR inhibitor NVP-BEZ235 in combination with cisplatin on drug-resistant non-small cell lung cancer cell. Oncol Lett 2020; 20:326. [PMID: 33123242 PMCID: PMC7584016 DOI: 10.3892/ol.2020.12189] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2020] [Accepted: 09/17/2020] [Indexed: 02/07/2023] Open
Abstract
Cisplatin resistance is an obstacle for the effective treatment of non-small cell lung cancer (NSCLC). The combined use of two or more chemotherapeutic agents displays advantages for the clinical treatment of drug-resistant lung cancer. The present study aimed to assess the synergy of the dual PI3K/Akt/mTOR signaling pathway inhibitor NVP-BEZ235 and cisplatin, a chemotherapeutic agent, on proliferation, apoptosis, cell cycle arrest and protein expression in cisplatin-resistant NSCLC A549/diamminedichloroplatinum resistance (DDP) cells. Cell proliferation was determined by performing Cell Counting Kit 8 and colony formation assays. Combination index (CI) was used to assess the combinatorial effects of NVP-BEZ235 and cisplatin. Cellular apoptosis and cell cycle arrest were detected via flow cytometry. Western blotting was performed to evaluate protein expression levels relative to β-actin. Cisplatin and NVP-BEZ235 displayed the strongest synergy (CI50=0.23) at the mass ratio of 10:1. The half inhibitory concentrations of cisplatin and NVP-BEZ235 at 10:1 were 1.53 and 0.15 µg/ml, respectively. Compared with the control group, the combination of cisplatin and NVP-BEZ235 induced cell apoptosis and inhibited colony formation. Furthermore, compared with the control group, phosphorylation of Akt and p70S6 Kinase was significantly inhibited and cell cycle was arrested at G0G1 phase in the combination treatment group. The expression levels of drug efflux proteins, such as multidrug resistance-associated protein 1 and ATP-binding cassette sub-family G member 2, were significantly decreased when A549/DDP cells were treated with a combination of cisplatin and NVP-BEZ235 compared with the control group. Collectively, the present study indicated that the combined treatment of cisplatin and NVP-BEZ235 displayed synergistic antitumor effects on drug-resistant A549/DDP cells, by which the antiproliferative effects may occur via inhibition of the PI3K/Akt/mTOR signaling pathway and downregulation of drug efflux.
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Affiliation(s)
- Hao Zhu
- Department of Pharmacy, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, P.R. China
| | - Yuhuan Shi
- Department of Pharmacy, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, P.R. China
| | - Xiuxiu Jiao
- Department of Pharmacy, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, P.R. China
| | - Gang Yang
- Department of Pharmacy, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, P.R. China
| | - Rong Wang
- Department of Pharmacy, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, P.R. China
| | - Yongfang Yuan
- Department of Pharmacy, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, P.R. China
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4
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Brindel A, Althakfi W, Barritault M, Watkin E, Maury JM, Bringuier PP, Girard N, Brevet M. Uncommon EGFR mutations in lung adenocarcinoma: features and response to tyrosine kinase inhibitors. J Thorac Dis 2020; 12:4643-4650. [PMID: 33145037 PMCID: PMC7578497 DOI: 10.21037/jtd-19-3790] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Background EGFR mutant non-small cell lung cancer (NSCLC) is a heterogeneous disease. The treatment for frequent EGFR mutations relies on tyrosine kinase inhibitors (TKIs); the clinical and therapeutic significance of uncommon EGFR mutations is uncertain. Methods This is a single-center retrospective study of patients with EGFR-mutant lung cancer (2009-2017). Molecular analyses of EGFR exons 18-21 were performed. Only patients with uncommon mutations were included (p.Glu709X, p.Gly719X, p.Ala767_Val769 dup, p.Ser768Ile, and p.Leu861Gln). Results Among 6,747 tumor samples, 95 out 820 patients (11.6%) harbored 113 uncommon EGFR mutations. There were 50 metastatic NSCLC patients for whom the median OS was 18.0 months (95% CI: 15, 32). In this population, the p.Leu861Gln uncommon exon 21 EGFR mutation was associated with poor prognosis (HR: 2.96, 95% CI: 1.39, 6.31; P=0.003). Among those harboring a single uncommon EGFR mutation, median OS was 27.6 months (95% CI: 10.8, not attained) in patients who were treated by chemotherapy only (n=13) versus 6.0 months (95% CI: 2.4, not attained) in patients exclusively treated with a first or second-EGFR-TKI (n=9; HR: 0.27, 95% CI: 0.09, 0.78; P=0.01. In patients with a single uncommon EGFR mutation, first-line chemotherapy was associated with a better overall survival than TKIs (HR: 0.31, 95% CI: 0.15, 0.68; P=0.002). In patients who received first or second-EGFR-TKI as first-line treatment (n=26), OS was significantly better for those with two uncommon EGFR mutations than those with a single uncommon mutation (HR: 0.07, 95% CI: 0.009, 0.54; P=0.001). Conclusions In conclusion, uncommon EGFR mutations may be associated with a poor outcome and the data challenge the use of first-generation TKI in such patients, however first-line TKI is more effective in cases of double uncommon mutations and such patients should be treated accordingly.
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Affiliation(s)
- Aurélien Brindel
- Institut de Pathologie Multi-sites des Hospices Civils de Lyon - Site Est et Plateforme de Pathologie Moléculaire, Hospices Civils de Lyon, Bron, France.,Département de Pneumologie, Centre Hospitalier Régional Universitaire de Nancy, Nancy, France
| | - Wajd Althakfi
- Institut de Pathologie Multi-sites des Hospices Civils de Lyon - Site Est et Plateforme de Pathologie Moléculaire, Hospices Civils de Lyon, Bron, France.,Department of Pathology, King Saud University, Riyadh, Kingdom of Saudi Arabia.,Service d'anatomie et de Cytologie Pathologiques, Centre Hospitalier Universitaire d'Amiens, Amiens, France
| | - Marc Barritault
- Institut de Pathologie Multi-sites des Hospices Civils de Lyon - Site Est et Plateforme de Pathologie Moléculaire, Hospices Civils de Lyon, Bron, France.,Université Claude Bernard Lyon 1, Lyon, France
| | | | - Jean-Michel Maury
- Université Claude Bernard Lyon 1, Lyon, France.,Cypath, Villeurbanne, France.,Département de Chirurgie Thoracique, Transplantation Pulmonaire et Cardio-pulmonaire, Hôpital Cardio-vasculaire et Pneumologique de Louis Pradel, Hospices Civils de Lyon, Bron, France
| | - Pierre-Paul Bringuier
- Institut de Pathologie Multi-sites des Hospices Civils de Lyon - Site Est et Plateforme de Pathologie Moléculaire, Hospices Civils de Lyon, Bron, France.,Université Claude Bernard Lyon 1, Lyon, France
| | - Nicolas Girard
- Université Claude Bernard Lyon 1, Lyon, France.,Institut du Thorax, Institut Curie, Paris, France
| | - Marie Brevet
- Institut de Pathologie Multi-sites des Hospices Civils de Lyon - Site Est et Plateforme de Pathologie Moléculaire, Hospices Civils de Lyon, Bron, France.,Université Claude Bernard Lyon 1, Lyon, France
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Domagala-Kulawik J. New Frontiers for Molecular Pathology. Front Med (Lausanne) 2019; 6:284. [PMID: 31867335 PMCID: PMC6904313 DOI: 10.3389/fmed.2019.00284] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2019] [Accepted: 11/20/2019] [Indexed: 12/24/2022] Open
Abstract
Lung cancer remains a serious oncological problem worldwide. The delayed diagnosis and a prevalence of advanced stages in up to 70% of cases at recognition are still observed. Thanks to targeted therapies and immunotherapy a significant progress in achieving prolonged survival in some lung cancer patients is reported. A precise histopathological diagnosis, especially the recognition of adenocarcinoma, and a progress in the methods of clinical staging underlie the proper qualification of patients for a tailored therapy. The deep molecular characteristics of lung cancer in liquid biopsy, for example blood, bronchoalveolar lavage fluid (BALF), cell suspension from needle aspirates, are currently available. The molecular characteristic has recently been extended with molecular aberrations of BRAF, KRAS, MET, ERBB2, RET, NTRK next to the well-known EGFR mutations and ALK, ROS-1 relocation. The present paper discusses the usefulness of adequate pathological methods and molecular testing for the identification of a broad spectrum of predictive biomarkers for a molecular-directed lung cancer therapy. Immunotherapy with immune checkpoint inhibitors (ICIs) is approved in the first line therapy of advanced non-small-cell lung cancer. To date only PD-L1 expression on tumor cells has been found to be a marker of response to ICIs. The efficacy of ICIs as well as the susceptibility to immune-related adverse events are highly individual, so immune biomarkers are widely investigated. The candidates for predictive factors for ICIs immunotherapy include cancer cell antigenicity, presence of regulatory/suppressory molecules on cancer cells, cancer stem cells or on exosomes, and, on the other hand, an immune status of the patient. Cancers with high immune infiltration in the tumor milieu, referred to as “hot” tumors, seem to ensure a better response to ICIs than the “cold” ones. BALF analysis may replace cancer tissue examination, which is of limited access in advanced stages, for the recognition of the nature of immune response in the tumor environment. Tumor mutational burden (TMB) was shown to correlate with a good response to ICIs, especially when combined with other anticancer therapies. The present paper demonstrates the results of recent studies on lung cancer characteristics which bring us closer to the definition of useful prognostic/predictive factors.
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Affiliation(s)
- Joanna Domagala-Kulawik
- Department of Internal Medicine, Pulmonary Diseases and Allergy Medical University of Warsaw, Warsaw, Poland
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6
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Chronic Obstructive Pulmonary Disease and Lung Cancer: Underlying Pathophysiology and New Therapeutic Modalities. Drugs 2019; 78:1717-1740. [PMID: 30392114 DOI: 10.1007/s40265-018-1001-8] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Chronic obstructive pulmonary disease (COPD) and lung cancer are major lung diseases affecting millions worldwide. Both diseases have links to cigarette smoking and exert a considerable societal burden. People suffering from COPD are at higher risk of developing lung cancer than those without, and are more susceptible to poor outcomes after diagnosis and treatment. Lung cancer and COPD are closely associated, possibly sharing common traits such as an underlying genetic predisposition, epithelial and endothelial cell plasticity, dysfunctional inflammatory mechanisms including the deposition of excessive extracellular matrix, angiogenesis, susceptibility to DNA damage and cellular mutagenesis. In fact, COPD could be the driving factor for lung cancer, providing a conducive environment that propagates its evolution. In the early stages of smoking, body defences provide a combative immune/oxidative response and DNA repair mechanisms are likely to subdue these changes to a certain extent; however, in patients with COPD with lung cancer the consequences could be devastating, potentially contributing to slower postoperative recovery after lung resection and increased resistance to radiotherapy and chemotherapy. Vital to the development of new-targeted therapies is an in-depth understanding of various molecular mechanisms that are associated with both pathologies. In this comprehensive review, we provide a detailed overview of possible underlying factors that link COPD and lung cancer, and current therapeutic advances from both human and preclinical animal models that can effectively mitigate this unholy relationship.
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7
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Ren F, Zhao T, Liu B, Pan L. Neutrophil-lymphocyte ratio (NLR) predicted prognosis for advanced non-small-cell lung cancer (NSCLC) patients who received immune checkpoint blockade (ICB). Onco Targets Ther 2019; 12:4235-4244. [PMID: 31239702 PMCID: PMC6554525 DOI: 10.2147/ott.s199176] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Accepted: 03/12/2019] [Indexed: 12/16/2022] Open
Abstract
Purpose: The aim of this study was to identify the prognostic value of blood neutrophil–lymphocyte ratio (NLR) in patients with advanced non-small-cell lung cancer (NSCLC) who received immune checkpoint blockade (ICB) therapy. Materials and methods: 147 advanced NSCLC patients were enrolled in this study from June 30, 2013, to August 30, 2017. Survival analysis used the Kaplan and Meier methodology. The mean follow-up time was 2.6 years. The phenotypic T cells subtypes were evaluated by flow cytometry. Results: Of these patients, receiver operating characteristic (ROC) curves analysis were used to confirm the cut-off value, and patients were stratified into NLR>2.5 (n=88) and NLR≤2.5 (n=59) groups. Survival analysis showed that patients with NLR≤2.5 had significantly favorable overall survival (OS) and progression-free survival (PFS) compared with patients with NLR>2.5. After stratified with the tumor mutational burden (TMB), we further found that patients with NLR≤2.5 had significantly favorable OS and PFS compared with patients with NLR>2.5 in the group of patients with TMB>10, while in group patients with TMB≤10, patients with NLR≤2.5 had no significantly favorable OS and PFS compared with patients with NLR>2.5. The CD3+ and CD8+/CD28+ T cell subsets were significantly increased in patients with NLR≤2.5 (P<0.05), while the CD8+/CD28− and CD4+/CD25+ cell subsets were significantly decreased in patients with NLR≤2.5 (P<0.05). Conclusion: High NLR value independently predicted poorer survival in advanced NSCLC patients received ICB therapy. The NLR may help oncologists to predict outcomes of patients received ICB and choose alternative therapies for patients with high NLR value.
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Affiliation(s)
- Fangping Ren
- Department of Respiratory, Beijing Shijitan Hospital, Capital Medical University, Beijing 100038, People's Republic of China
| | - Tian Zhao
- Department of Clinical Laboratory, The 161st Hospital of PLA, Wuhan, 430010, People's Republic of China
| | - Bing Liu
- Department of Disease Control and Prevention, PLA Rocket Force Characteristic Medical Center, Beijing, People's Republic of China
| | - Lei Pan
- Department of Respiratory, Beijing Shijitan Hospital, Capital Medical University, Beijing 100038, People's Republic of China
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8
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Emerging Lipid-Lowering Therapies in Secondary Prevention. CURRENT CARDIOVASCULAR RISK REPORTS 2019. [DOI: 10.1007/s12170-019-0607-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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9
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Offer A, Arnold M, Clarke R, Bennett D, Bowman L, Bulbulia R, Haynes R, Li J, Hopewell JC, Landray M, Armitage J, Collins R, Parish S. Assessment of Vascular Event Prevention and Cognitive Function Among Older Adults With Preexisting Vascular Disease or Diabetes: A Secondary Analysis of 3 Randomized Clinical Trials. JAMA Netw Open 2019; 2:e190223. [PMID: 30821829 PMCID: PMC6484650 DOI: 10.1001/jamanetworkopen.2019.0223] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
IMPORTANCE Acquisition of reliable randomized clinical trial evidence of the effects of cardiovascular interventions on cognitive decline is a priority. OBJECTIVES To estimate the association of cognitive aging with the avoidance of vascular events in cardiovascular intervention trials and understand whether reports of nonsignificant results exclude worthwhile benefit. DESIGN, SETTING, AND PARTICIPANTS This secondary analysis of 3 randomized clinical trials in participants with preexisting occlusive vascular disease or diabetes included survivors to final in-trial follow-up in the Heart Protection Study (HPS), Study of the Effectiveness of Additional Reductions in Cholesterol and Homocysteine (SEARCH), and Treatment of HDL (High-Density Lipoprotein) to Reduce the Incidence of Vascular Events (HPS2-THRIVE) trials of lipid modification for prevention of cardiovascular events. Data were collected from February 1994 through January 2013 and analyzed from January 2015 through December 2018. EXPOSURES Incident vascular events and diabetes and statin therapy. MAIN OUTCOMES AND MEASURES Cognitive function was assessed at the end of a mean (SD) of 4.9 (1.5) years of follow-up using a 14-item verbal test. Associations of the incidence of vascular events and new-onset diabetes during the trials, with cognitive function at final in-trial follow-up were estimated and expressed as years of cognitive aging (using the association of the score with age >60 years). The benefit on cognitive aging mediated through the effects of lowering low-density lipoprotein cholesterol levels on events was estimated by applying these findings to nonfatal event differences observed with statin therapy in the HPS trial. RESULTS Among 45 029 participants undergoing cognitive assessment, mean (SD) age was 67.9 (8.0) years; 80.7% were men. Incident stroke (n = 1197) was associated with 7.1 (95% CI, 5.7-8.5) years of cognitive aging; incident transient ischemic attack, myocardial infarction, heart failure, and new-onset diabetes were associated with 1 to 2 years of cognitive aging. In HPS, randomization to statin therapy for 5 years resulted in 2.0% of survivors avoiding a nonfatal stroke or transient ischemic attack and 2.4% avoiding a nonfatal cardiac event, which yielded an expected reduction in cognitive aging of 0.15 (95% CI, 0.11-0.19) years. With 15 926 participants undergoing cognitive assessment, HPS had 80% power to detect a 1-year (ie, 20% during the 5 years) difference in cognitive aging. CONCLUSIONS AND RELEVANCE The expected cognitive benefits of the effects of preventive therapies on cardiovascular events during even the largest randomized clinical trials may have been too small to be detectable. Hence, nonsignificant findings may not provide good evidence of a lack of worthwhile benefit on cognitive function with prolonged use of such therapies. TRIAL REGISTRATION isrctn.com and ClinicalTrials.gov Identifiers: ISRCTN48489393, ISRCTN74348595, and NCT00461630.
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Affiliation(s)
- Alison Offer
- Clinical Trial Service Unit and Epidemiological
Studies Unit, Nuffield Department of Population Health, University of Oxford, Oxford, United
Kingdom
| | - Matthew Arnold
- Clinical Trial Service Unit and Epidemiological
Studies Unit, Nuffield Department of Population Health, University of Oxford, Oxford, United
Kingdom
| | - Robert Clarke
- Clinical Trial Service Unit and Epidemiological
Studies Unit, Nuffield Department of Population Health, University of Oxford, Oxford, United
Kingdom
| | - Derrick Bennett
- Clinical Trial Service Unit and Epidemiological
Studies Unit, Nuffield Department of Population Health, University of Oxford, Oxford, United
Kingdom
| | - Louise Bowman
- Clinical Trial Service Unit and Epidemiological
Studies Unit, Nuffield Department of Population Health, University of Oxford, Oxford, United
Kingdom
| | - Richard Bulbulia
- Clinical Trial Service Unit and Epidemiological
Studies Unit, Nuffield Department of Population Health, University of Oxford, Oxford, United
Kingdom
| | - Richard Haynes
- Clinical Trial Service Unit and Epidemiological
Studies Unit, Nuffield Department of Population Health, University of Oxford, Oxford, United
Kingdom
- Medical Research Council Population Health Research
Unit, Nuffield Department of Population Health, University of Oxford, Oxford, United
Kingdom
| | - Jing Li
- National Clinical Research Center of Cardiovascular
Diseases, Fuwai Hospital, Beijing, China
- National Center for Cardiovascular Diseases, Chinese
Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Jemma C. Hopewell
- Clinical Trial Service Unit and Epidemiological
Studies Unit, Nuffield Department of Population Health, University of Oxford, Oxford, United
Kingdom
| | - Martin Landray
- Clinical Trial Service Unit and Epidemiological
Studies Unit, Nuffield Department of Population Health, University of Oxford, Oxford, United
Kingdom
| | - Jane Armitage
- Clinical Trial Service Unit and Epidemiological
Studies Unit, Nuffield Department of Population Health, University of Oxford, Oxford, United
Kingdom
- Medical Research Council Population Health Research
Unit, Nuffield Department of Population Health, University of Oxford, Oxford, United
Kingdom
| | - Rory Collins
- Clinical Trial Service Unit and Epidemiological
Studies Unit, Nuffield Department of Population Health, University of Oxford, Oxford, United
Kingdom
| | - Sarah Parish
- Clinical Trial Service Unit and Epidemiological
Studies Unit, Nuffield Department of Population Health, University of Oxford, Oxford, United
Kingdom
- Medical Research Council Population Health Research
Unit, Nuffield Department of Population Health, University of Oxford, Oxford, United
Kingdom
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10
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Jia L, Lv D, Zhang S, Wang Z, Zhou B. Astragaloside IV Inhibits the Progression of Non-Small Cell Lung Cancer Through the Akt/GSK-3β/β-Catenin Pathway. Oncol Res 2018; 27:503-508. [PMID: 30131090 PMCID: PMC7848426 DOI: 10.3727/096504018x15344989701565] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Astragaloside IV (AS-IV) is an active ingredient in Astragalus membranaceus and is involved in various biological processes, such as regulating the immune system, and counteracting inflammation and malignancy. The aim of this study was to explore the effect of AS-IV on non-small cell lung cancer (NSCLC) cells. Cell counting kit (CCK)-8 assay and flow cytometry were performed to investigate cell survival and cell death, and Western blotting was performed to assess protein expression. We found that AS-IV inhibited the migration and proliferation of NSCLC cells and caused a noticeable increase in cell death. Furthermore, the expression of Bax, a marker of cell death, was increased, whereas the expression of Bcl-2, an antiapoptotic protein, was reduced. AS-IV also promoted cleavage of caspase-3, another indication of apoptosis. Finally, the Akt/GSK-3β/β-catenin axis was suppressed in response to AS-IV. Taken together, these findings provide evidence that AS-IV inhibits NSCLC development via inhibition of the Akt/GSK-3β/β-catenin signaling axis. We therefore propose that AS-IV represents a promising novel agent for the treatment of NSCLC.
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Affiliation(s)
- Liwei Jia
- School of Pharmacy, Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang Province, P.R. China
| | - Dongying Lv
- Heilongjiang Environmental Monitoring Central Station, Harbin, Heilongjiang Province, P.R. China
| | - Shuang Zhang
- School of Pharmacy, Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang Province, P.R. China
| | - Zhenyue Wang
- School of Pharmacy, Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang Province, P.R. China
| | - Bo Zhou
- School of Pharmacy, Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang Province, P.R. China
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