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Salyapongse AM, Kanne JP, Nagpal P, Laucis NC, Markhardt BK, Yin Z, Slavic S, Lubner MG, Szczykutowicz TP. Spatial Resolution Fidelity Comparison Between Energy Integrating and Deep Silicon Photon Counting CT: Implications for Pulmonary Imaging. J Thorac Imaging 2024:00005382-990000000-00137. [PMID: 38712920 DOI: 10.1097/rti.0000000000000788] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/08/2024]
Abstract
PURPOSE We investigated spatial resolution loss away from isocenter for a prototype deep silicon photon-counting detector (PCD) CT scanner and compare with a clinical energy-integrating detector (EID) CT scanner. MATERIALS AND METHODS We performed three scans on a wire phantom at four positions (isocenter, 6.7, 11.8, and 17.1 cm off isocenter). The acquisition modes were 120 kV EID CT, 120 kV high-definition (HD) EID CT, and 120 kV PCD CT. HD mode used double the projection view angles per rotation as the "regular" EID scan mode. The diameter of the wire was calculated by taking the full width of half max (FWHM) of a profile drawn over the radial and azimuthal directions of the wire. Change in wire diameter appearance was assessed by calculating the ratio of the radial and azimuthal diameter relative to isocenter. t tests were used to make pairwise comparisons of the wire diameter ratio with each acquisition and mean ratios' difference from unity. RESULTS Deep silicon PCD CT had statistically smaller (P<0.05) changes in diameter ratio for both radial and azimuthal directions compared with both regular and HD EID modes and was not statistically different from unity (P<0.05). Maximum increases in FWMH relative to isocenter were 36%, 12%, and 1% for regular EID, HD EID, and deep silicon PCD, respectively. CONCLUSION Deep silicon PCD CT exhibits less change in spatial resolution in both the radial and azimuthal directions compared with EID CT.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Timothy P Szczykutowicz
- Departments of Radiology, Medical Physics, and Biomedical Engineering, University of Wisconsin Madison, Madison, WI
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Zhang Y, Li D. An original aneuploidy-related gene model for predicting lung adenocarcinoma survival and guiding therapy. Sci Rep 2024; 14:8135. [PMID: 38584220 PMCID: PMC10999435 DOI: 10.1038/s41598-024-58020-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Accepted: 03/25/2024] [Indexed: 04/09/2024] Open
Abstract
Aneuploidy is a hallmark of cancers, but the role of aneuploidy-related genes in lung adenocarcinoma (LUAD) and their prognostic value remain elusive. Gene expression and copy number variation (CNV) data were enrolled from TCGA and GEO database. Consistency clustering analysis was performed for molecular cluster. Tumor microenvironment was assessed by the xCell and ESTIMATE algorithm. Limma package was used for selecting differentially expressed genes (DEGs). LASSO and stepwise multivariate Cox regression analysis were used to establish an aneuploidy-related riskscore (ARS) signature. GDSC database was conducted to predict drug sensitivity. A nomogram was designed by rms R package. TCGA-LUAD patients were stratified into 3 clusters based on CNV data. The C1 cluster displayed the optimal survival advantage and highest inflammatory infiltration. Based on integrated intersecting DEGs, we constructed a 6-gene ARS model, which showed effective prediction for patient's survival. Drug sensitivity test predicted possible sensitive drugs in two risk groups. Additionally, the nomogram exhibited great predictive clinical treatment benefits. We established a 6-gene aneuploidy-related signature that could effectively predict the survival and therapy for LUAD patients. Additionally, the ARS model and nomogram could offer guidance for the preoperative estimation and postoperative therapy of LUAD.
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Affiliation(s)
- Yalei Zhang
- Department of Thoracic Oncology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510032, China.
| | - Dongmei Li
- Department of Thoracic Oncology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510032, China
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Chen L, Zhang Z. The self-distillation trained multitask dense-attention network for diagnosing lung cancers based on CT scans. Med Phys 2024; 51:1738-1753. [PMID: 37715993 DOI: 10.1002/mp.16736] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Revised: 07/31/2023] [Accepted: 08/15/2023] [Indexed: 09/18/2023] Open
Abstract
BACKGROUND The latest international multidisciplinary histopathological classification of lung cancer indicates that a deeper study of the lung adenocarcinoma requires a comprehensive multidisciplinary platform. However, in the traditional pathological examination or previous computer-vision-based research, the entire lung is not considered in a comprehensive manner. PURPOSE The study aims to develop a deep learning model proposed for diagnosing the lung adenocarcinoma histopathologically based on CT scans. Instead of just classifying the lung adenocarcinoma, the pathological report should be inferred based on both the invasiveness and growth pattern of the tumors. METHODS A self-distillation trained multitask dense-attention network (SD-MdaNet) is proposed and validated based on 2412 labeled CT scans from 476 patients and 845 unlabeled scans. Inferring the pathological report is divided into two tasks, predicting the invasiveness of the lung tumor and inferring growth patterns of tumor cells in a comprehensive histopathological subtyping manner with excellent accuracy. In the proposed method, the dense-attention module is introduced to better extract features from a small dataset in the main branch of the MdaNet. Next, task-specific attention modules are utilized in different branches and finally integrated as a multitask model. The second task is a blend of classification and regression tasks. Thus, a specialized loss function is developed. In the proposed knowledge distillation (KD) process, the MdaNet as well as its main branch trained for solving two single tasks, respectively, are treated as multiple teachers to produce a student model. A novel KD loss function is developed to take the advantage of all the models as well as data with labels and without labels. RESULTS SD-MdaNet achieves an AUC of98.7 ± 0.4 % $98.7\pm 0.4\%$ on invasiveness prediction, and91.6 ± 1.0 % $91.6\pm 1.0\%$ on predominant growth pattern prediction on our dataset. Moreover, the average mean squared error in inferring growth pattern proportion reaches0.0217 ± 0.0019 $0.0217\pm 0.0019$ , and the AUC for predominant growth pattern proportion reaches91.6 ± 1.0 % $91.6\pm 1.0\%$ . The proposed SD-MdaNet is significantly better than all other benchmarking methods (F D R < 0.05 $FDR<0.05$ ). CONCLUSIONS Experimental results demonstrate that the proposed SD-MdaNet can significantly improve the performance of the lung adenocarcinoma pathological diagnosis using only CT scans. Analyses and discussions are conducted to interpret the advantages of the SD-MdaNet.
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Affiliation(s)
- Liuyin Chen
- School of Data Science, City University of Hong Kong, Hong Kong SAR, China
| | - Zijun Zhang
- School of Data Science, City University of Hong Kong, Hong Kong SAR, China
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Cao Q, Wang H, Zhu J, Qi C, Huang H, Chu X. lncRNA CYTOR promotes lung adenocarcinoma gemcitabine resistance and epithelial-mesenchymal transition by sponging miR-125a-5p and upregulating ANLN and RRM2. Acta Biochim Biophys Sin (Shanghai) 2024; 56:210-222. [PMID: 38273783 PMCID: PMC10984860 DOI: 10.3724/abbs.2023287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Accepted: 09/15/2023] [Indexed: 01/27/2024] Open
Abstract
Lung adenocarcinoma (LUAD) is one of the most aggressive types of lung cancer. The prognosis of LUAD patients remains poor, and the overall efficacy of gemcitabine-based chemotherapy is still unsatisfactory. Long noncoding RNAs (lncRNAs) play important roles in several cancer types by interacting with multiple proteins, RNA, and DNA. However, the relationship between lncRNA dysregulation and gemcitabine resistance in LUAD has not been fully elucidated. In this study, lncRNA CYTOR expression and its association with the prognosis of LUAD patients are assessed by quantitative RT-PCR and Kaplan-Meier survival analysis. In vitro and in vivo functional studies are conducted to evaluate the biological functions of CYTOR in LUAD. The underlying mechanism regarding the tumor-promoting effects of CYTOR is explored using RNA immunoprecipitation, biotin-labelled RNA pulldown, luciferase reporter assays, and western blot analysis. We identify that CYTOR is an oncogenic lncRNA and is apparently upregulated in LUAD by analysing TCGA-LUAD data. High CYTOR expression is a poor prognostic factor for LUAD. Functional studies reveal that CYTOR confers LUAD cells with stronger resistance to gemcitabine treatment and upregulates the expression levels of epithelial-mesenchymal transition (EMT)-related proteins. Mechanically, CYTOR acts as a competitive endogenous RNA (ceRNA) to absorb miR-125a-5p, weakens the antitumor function of miR-125a-5p, and ultimately upregulates ANLN and RRM2 expressions. Taken together, this study explains the mechanism of lncRNA in the gemcitabine resistance of LUAD and formulates a theoretical framework for the in depth study of LUAD.
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Affiliation(s)
- Qijun Cao
- Department of Medical OncologyJinling Hospitalthe First School of Clinical MedicineSouthern Medical UniversityNanjing210016China
- Department of Medical OncologyCixi Hospital Affiliated to Wenzhou Medical UniversityNingbo315300China
| | - Haixia Wang
- Department of Cardiovascular MedicineCixi Hospital Affiliated to Wenzhou Medical UniversityNingbo315300China
| | - Jialong Zhu
- Department of Medical OncologyJinling Hospitalthe First School of Clinical MedicineSouthern Medical UniversityNanjing210016China
| | - Chen Qi
- Department of Cardiothoracic SurgeryJinling HospitalMedical School of Nanjing UniversityNanjing210093China
| | - Hairong Huang
- Department of Cardiothoracic SurgeryJinling HospitalMedical School of Nanjing UniversityNanjing210093China
| | - Xiaoyuan Chu
- Department of Medical OncologyJinling Hospitalthe First School of Clinical MedicineSouthern Medical UniversityNanjing210016China
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Zhao Y, Cui Q, Shen J, Shen W, Weng Y. Hsa_circ_0070440 promotes lung adenocarcinoma progression by SLC7A11-mediated-ferroptosis. Histol Histopathol 2023; 38:1429-1441. [PMID: 36852950 DOI: 10.14670/hh-18-597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/01/2023]
Abstract
BACKGROUND Circular RNA (circRNA) has recently emerged as having a key role in cancer initiation and progression. A prior study exhibited that hsa_circ_0070440 (circ_0070440) was significantly up-regulated in lung cancer cells, but the role and molecular mechanism of circ_0070440 during lung adenocarcinoma (LUAD) development remain unclear. METHODS Quantitative real-time polymerase chain reaction (qRT-PCR), Reverse transcription-PCR (RT-PCR), RNase R digestion, and Nuclear/cytoplasmic fractionation assay were employed to validate circ_0070440. Proliferation, apoptosis, viability, and ferrous iron level were measured by colony formation, 5-Ethynyl-2'-deoxyuridine (EdU), Annexin V-FITC/PI double staining, Cell Counting Kit-8 (CCK-8), and iron assay in LUAD cells. A xenograft mouse model was used for tumor growth in vivo. Western blot (WB) and immunohistochemistry (IHC) assays were utilized to determine the expression of solute carrier family 7 member 11 (SLC7A11), c-myc, and bcl-xL. The interactions between the circ_0070440/SLC7A11 axis and miR-485-5p were verified by RNA pull-down assay and dual-luciferase reporter assay. RESULTS Circ_0070440 was significantly up-regulated in LUAD cells. Knockdown of circ_0070440 inhibited growth and promoted both apoptosis and ferroptosis of LUAD cells. Moreover, our results showed that circ_0070440 contributed to malignant progression and suppressed ferroptosis of LUAD by sponging miR-485-5p and upregulating SLC7A11 expression. Furthermore, circ_0070440 and SLC7A11 levels were up-regulated, and the miR-485-5p level was more down-regulated in the tumor tissues than in normal tissues of LUAD patients. CONCLUSION Circ_0070440 modulated LUAD malignant progression and ferroptosis via targeting SLC7A11, implying a significant role of the circ_0070440/miR-485-5p/SLC7A11 axis in the diagnosis and treatment of LUAD.
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Affiliation(s)
- Yong Zhao
- Department of Thoracic and Cardiac Surgery, Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, China
| | - Qichen Cui
- Department of Thoracic and Cardiac Surgery, Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, China
| | - Jian Shen
- Department of Thoracic and Cardiac Surgery, Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, China
| | - Weihong Shen
- Department of Clinical Laboratory, Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, China
| | - Yuan Weng
- Department of Thoracic and Cardiac Surgery, Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, China.
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Costa FMD, Cerezoli MT, Medeiros AK, Magalhães Filho MAF, Castro SN. Small samples, big problems: lipoid pneumonia mimicking lung adenocarcinoma. J Bras Pneumol 2023; 49:e20230147. [PMID: 37341242 PMCID: PMC10578939 DOI: 10.36416/1806-3756/e20230147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/22/2023] Open
Affiliation(s)
- Felipe Marques da Costa
- . Serviço de Pneumologia, Hospital Beneficência Portuguesa de São Paulo, São Paulo (SP) Brasil
| | - Milena Tenorio Cerezoli
- . Serviço de Pneumologia, Hospital Beneficência Portuguesa de São Paulo, São Paulo (SP) Brasil
| | | | | | - Suellen Nastri Castro
- . Serviço de Oncologia, Hospital Beneficência Portuguesa de São Paulo, São Paulo (SP) Brasil
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DeMars B, Khan M, Lebel DP, Giri B. An Unusual Case of Mucinous Adenocarcinoma of the Lung Presenting as Septic Emboli. Cureus 2023; 15:e40326. [PMID: 37448412 PMCID: PMC10338047 DOI: 10.7759/cureus.40326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/01/2023] [Indexed: 07/15/2023] Open
Abstract
This is a case of a 92-year-old female with multiple hospitalizations for dyspnea on exertion and hypoxemia. Her symptoms were initially thought to be secondary to pneumonia, and on subsequent admission, culture-negative endocarditis. A computed tomography (CT) of the chest was remarkable for numerous bilateral lung nodules of varying size, some of which had a cavitary appearance raising concern for septic emboli. While a transthoracic echo was unremarkable, a transesophageal echo found a small 3 mm echodensity at the tip of the right coronary leaflet of the aortic valve and a possible mobile echodensity on the tricuspid valve leaflet. These findings further supported a clinical diagnosis of endocarditis with septic emboli in the lungs. Initial bronchoscopy yielded an unremarkable biopsy and a bronchial alveolar lavage with the growth of Actinomyces odontolyticus. During a subsequent hospitalization, a repeat bronchoscopy with transbronchial biopsy revealed a final diagnosis of invasive pulmonary mucinous adenocarcinoma. This case highlights a unique presentation of mucinous adenocarcinoma of the lung initially masquerading as septic emboli, resulting in a delay in the final diagnosis.
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Affiliation(s)
- Brinn DeMars
- Internal Medicine, Virginia Tech Carilion School of Medicine, Roanoke, USA
| | - Mohammad Khan
- Pulmonary and Critical Care, Virginia Tech Carilion School of Medicine, Roanoke, USA
| | - David P Lebel
- Basic Science Education, Virginia Tech Carilion School of Medicine, Roanoke, USA
| | - Badri Giri
- Pulmonary and Critical Care, Virginia Tech Carilion School of Medicine, Roanoke, USA
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Tang J, Zhang J, Lu Y, He J, Wang H, Liu B, Tu C, Li Z. Novel insights into the multifaceted roles of m 6A-modified LncRNAs in cancers: biological functions and therapeutic applications. Biomark Res 2023; 11:42. [PMID: 37069649 PMCID: PMC10111779 DOI: 10.1186/s40364-023-00484-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Accepted: 04/11/2023] [Indexed: 04/19/2023] Open
Abstract
N6-methyladenosine (m6A) is considered as the most common and important internal transcript modification in several diseases like type 2 diabetes, schizophrenia and especially cancer. As a main target of m6A methylation, long non-coding RNAs (lncRNAs) have been proved to regulate cellular processes at various levels, including epigenetic modification, transcriptional, post-transcriptional, translational and post-translational regulation. Recently, accumulating evidence suggests that m6A-modified lncRNAs greatly participate in the tumorigenesis of cancers. In this review, we systematically summarized the biogenesis of m6A-modified lncRNAs and the identified m6A-lncRNAs in a variety of cancers, as well as their potential diagnostic and therapeutic applications as biomarkers and therapeutic targets, hoping to shed light on the novel strategies for cancer treatment.
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Affiliation(s)
- Jinxin Tang
- Department of Orthopaedics, The Second Xiangya Hospital of Central South University, Changsha, Hunan, 410011, China
- Hunan Key Laboratory of Tumor Models and Individualized Medicine, The Second Xiangya Hospital of Central South University, Changsha, Hunan, 410011, China
- Xiangya School of Medicine, Central South University, Changsha, Hunan, 410011, China
| | - Jinhui Zhang
- Xiangya School of Medicine, Central South University, Changsha, Hunan, 410011, China
| | - Yu Lu
- Xiangya School of Medicine, Central South University, Changsha, Hunan, 410011, China
| | - Jieyu He
- Department of Geriatrics, The Second Xiangya Hospital of Central South University, Changsha, Hunan, 410011, China
| | - Hua Wang
- Department of Orthopaedics, The Second Xiangya Hospital of Central South University, Changsha, Hunan, 410011, China
- Hunan Key Laboratory of Tumor Models and Individualized Medicine, The Second Xiangya Hospital of Central South University, Changsha, Hunan, 410011, China
- Xiangya School of Medicine, Central South University, Changsha, Hunan, 410011, China
| | - Binfeng Liu
- Department of Orthopaedics, The Second Xiangya Hospital of Central South University, Changsha, Hunan, 410011, China
- Hunan Key Laboratory of Tumor Models and Individualized Medicine, The Second Xiangya Hospital of Central South University, Changsha, Hunan, 410011, China
| | - Chao Tu
- Department of Orthopaedics, The Second Xiangya Hospital of Central South University, Changsha, Hunan, 410011, China.
- Hunan Key Laboratory of Tumor Models and Individualized Medicine, The Second Xiangya Hospital of Central South University, Changsha, Hunan, 410011, China.
| | - Zhihong Li
- Department of Orthopaedics, The Second Xiangya Hospital of Central South University, Changsha, Hunan, 410011, China.
- Hunan Key Laboratory of Tumor Models and Individualized Medicine, The Second Xiangya Hospital of Central South University, Changsha, Hunan, 410011, China.
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Jiang G, Song C, Wang X, Xu Y, Li H, He Z, Cai Y, Zheng M, Mao W. The multi-omics analysis identifies a novel cuproptosis-anoikis-related gene signature in prognosis and immune infiltration characterization of lung adenocarcinoma. Heliyon 2023; 9:e14091. [PMID: 36967927 PMCID: PMC10031379 DOI: 10.1016/j.heliyon.2023.e14091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 02/18/2023] [Accepted: 02/22/2023] [Indexed: 03/02/2023] Open
Abstract
Background Lung adenocarcinoma (LUAD) has emerged as one of the most aggressive lethal cancers. Anoikis serves as programmed apoptosis initiated by the detachment of cells from the extracel-lular matrix. Cuproptosis is distinct from traditional cell death modalities. The above two modes are both closely related to tumor progression, prognosis, and treatment. However, whether they have synergistic effects in LUAD deserves further investigation. Methods The anoikis-related prognostic genes (ANRGs) co-expressed with cuproptosis-associated genes (CAGs) were screened using correlation analysis, analysis of variance, least absolute shrinkage, and selection operator (LASSO), and COX regression followed by functional analysis, and then LUAD risk score model was constructed. Using consensus clustering, the relationship between different subtypes and clinicopathological features, immune infiltration characteristics, and somatic mutations was analyzed. A nomogram was developed by incorporating clinical information, which provided a prediction of the survival of patients. Finally, a comprehensive analysis of ANRGs was performed and verified by the HPA database. Results A total of 27 ANRGs associated with cuproptosis were obtained. On this basis, three distinct ANRGs subtypes were identified, and the differences between clinical prognosis and immune infiltration were observed. A risk score model has been constructed by incorporating seven ANRGs signatures (EIF2AK3, IKZF3, ITGAV, OGT, PLK1, TRAF2, XRCC5). A highly reliable nomogram was developed to help formulate treatment strategies based on risk score and the clinicopathological features of LUAD. The seven-gene signature was turned out to be strongly linked to immune cells and validated in single-cell data. Immunohistochemistry proved that all of them are highly expressed in LUAD tissues. Conclusion This study reveals the potential relationship between cuproptosis-related ANRGs and clinicopathological features, tumor microenvironment (TME), and mutation characteristics, which can be applied for predicting the prognosis of LUAD and help develop individualized treatment strategies.
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Affiliation(s)
- Guanyu Jiang
- Department of Thoracic Surgery, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, 214023, China
| | - Chenghu Song
- Department of Thoracic Surgery, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, 214023, China
| | - Xiaokun Wang
- Department of Thoracic Surgery, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, 214023, China
| | - Yongrui Xu
- Department of Thoracic Surgery, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, 214023, China
| | - Huixing Li
- Department of Thoracic Surgery, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, 214023, China
| | - Zhao He
- Department of Thoracic Surgery, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, 214023, China
| | - Ying Cai
- Department of Pathology, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, 214023, China
| | - Mingfeng Zheng
- Department of Thoracic Surgery, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, 214023, China
| | - Wenjun Mao
- Department of Thoracic Surgery, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, 214023, China
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Li Y, Liu Y, Wang K, Xue D, Huang Y, Tan Z, Chen Y. STK24 Promotes Progression of LUAD and Modulates the Immune Microenvironment. Mediators Inflamm 2023; 2023:8646088. [PMID: 37181807 PMCID: PMC10175013 DOI: 10.1155/2023/8646088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2022] [Revised: 11/06/2022] [Accepted: 04/05/2023] [Indexed: 05/16/2023] Open
Abstract
Objective Recent studies have shown that serine/threonine-protein kinase 24 (STK24) plays an important role in cancer development. However, the significance of STK24 in lung adenocarcinoma (LUAD) remains to be determined. This study is aimed at investigating the significance of STK24 in LUAD. Methods STK24 was silenced and overexpressed by siRNAs and lentivirus, respectively. Cellular function was assessed by CCK8, colony formation, transwell, apoptosis, and cell cycle. mRNA and protein abundance was checked by qRT-PCR and WB assay, respectively. Luciferase reporter activity was evaluated to examine the regulation of KLF5 on STK24. Various public databases and tools were applied to investigate the immune function and clinical significance of STK24 in LUAD. Results We found that STK24 was overexpressed in lung adenocarcinoma (LUAD) tissues. High expression of STK24 predicted poor survival of LUAD patients. In vitro, STK24 enhanced the proliferation and colony growth ability of A549 and H1299 cells. STK24 knockdown induced apoptosis and cell cycle arrest at G0/G1 phase. Furthermore, Krüppel-like factor 5 (KLF5) activated STK24 in lung cancer cells and tissues. Enhanced lung cancer cell growth and migration triggered by KLF5 could be reversed by silencing of STK24. Finally, the bioinformatics results showed that STK24 may be involved in the regulation of the immunoregulatory process of LUAD. Conclusion KLF5 upregulation of STK24 contributes to cell proliferation and migration in LUAD. Moreover, STK24 may participate in the immunomodulatory process of LUAD. Targeting KLF5/STK24 axis may be a potential therapeutic strategy for LUAD.
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Affiliation(s)
- Yadong Li
- Department of Thoracic and Cardiovascular Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Yanhu Liu
- Department of Thoracic and Cardiovascular Surgery, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Kun Wang
- The Affiliated Anning First People's Hospital, Kunming University of Science and Technology, Kunming, China
| | - Dong Xue
- Department of Thoracic and Cardiovascular Surgery, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Yiqin Huang
- Department of Thoracic and Cardiovascular Surgery, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Zhenguo Tan
- Department of Thoracic and Cardiovascular Surgery, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Yijiang Chen
- Department of Thoracic and Cardiovascular Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
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Sato D, Matsubara H, Matsuoka H, Kondo T, Sasanuma H, Sugimura A, Onuki Y, Uchida T, Nakajima H. Lepidic growth component as a favorable prognostic factor in non-small cell lung cancer of ≤3 cm. Thorac Cancer 2022; 13:3274-3283. [PMID: 36218004 PMCID: PMC9715824 DOI: 10.1111/1759-7714.14680] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Revised: 09/17/2022] [Accepted: 09/19/2022] [Indexed: 01/09/2023] Open
Abstract
BACKGROUND Many non-small cell lung cancer (NSCLC) tumors present complex histology with various components. The effects of the lepidic growth component (LGC) on the prognosis of NSCLC have not been investigated. Here, we investigated whether an LGC is a relevant prognostic factor for NSCLC. METHODS This study retrospectively investigated the clinicopathologic characteristics of 379 patients with NSCLC ≤3 cm who underwent complete surgical resection between 2004 and 2016 at the University of Yamanashi Hospital. The histologic subtypes were classified into NSCLC with or without an LGC. We evaluated the effect of an LGC on the clinicopathologic features and 5-year overall survival of patients with NSCLC. RESULTS On final pathology, 214 (56%) of 379 patients had an LGC, and 165 (44%) did not. Sex, smoking history, ground-glass opacity component, pathologic invasive size, lymph node metastasis, pleural invasion, vessel invasion, pathologic stage, and histologic type were significantly different between the groups. Multivariate analysis of 5-year overall survival, identified age (hazard ratio [HR], 1.07; 95% confidence interval [CI], 1.035-1.105; p < 0.001), pathologic invasive size (HR, 1.548; 95% CI, 1.088-2.202; p = 0.015) and LGC (HR, 2.11; 95% CI, 1.099-4.051; p = 0.025) as independent prognostic factors. When the pathologic invasive size was matched, the 5-year overall survival of the LGC and non-LGC groups was 93% and 77%, respectively (p = 0.006). CONCLUSIONS LGC is a significantly favorable prognostic factor for NSCLC with a pathologic invasive size of ≤3 cm.
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Affiliation(s)
- Daisuke Sato
- Department of Thoracic SurgeryUniversity of YamanashiYamanashiJapan,Department of Thoracic SurgeryNihon University School of MedicineTokyoJapan
| | | | | | - Tetsuo Kondo
- Department of PathologyUniversity of YamanashiYamanashiJapan
| | | | - Aya Sugimura
- Department of Thoracic SurgeryUniversity of YamanashiYamanashiJapan
| | - Yuichiro Onuki
- Department of Thoracic SurgeryUniversity of YamanashiYamanashiJapan
| | - Tsuyoshi Uchida
- Department of Thoracic SurgeryUniversity of YamanashiYamanashiJapan
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Wu M, Bao J, Lei Y, Tao S, Lin Q, Chen L, Jin Y, Ding X, Yan Y, Han P. Comprehensive analysis of the cuproptosis-related model to predict prognosis and indicate tumor immune infiltration in lung adenocarcinoma. Front Oncol 2022; 12:935672. [DOI: 10.3389/fonc.2022.935672] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Accepted: 10/03/2022] [Indexed: 12/24/2022] Open
Abstract
BackgroundCuproptosis is a novel form of programmed cell death termed as Cu-dependent cytotoxicity. However, the roles of cuproptosis-associated genes (CAGs) in lung adenocarcinoma (LUAD) have not been explored comprehensively.MethodsWe obtained CAGs and utilized consensus molecular clustering by “non-negative matrix factorization (NMF)” to stratify LUAD patients in TCGA (N = 511), GSE13213 (N = 117), and GSE31210 (N = 226) cohorts. The ssGSEA and CIBERSORT algorithms were used to evaluate the relative infiltration levels of immune cell types in tumor microenvironment (TME). The risk score based on CAGs was calculated to predict patients’ survival outcomes.ResultsWe identified three cuproptosis-associated clusters with different clinicopathological characteristics. We found that the cuproptosis-associated cluster with the worst survival rates exhibited a high enrichment of activated CD4/8+ T cells. In addition, we found that the cuproptosis-associated risk score could be used for patients’ prognosis prediction and provide new insights in immunotherapy of LUAD patients. Eventually, we constructed a nomogram-integrated cuproptosis-associated risk score with clinicopathological factors to predict overall survival in LUAD patients, with 1-, 3-, and 5-year area under curves (AUCs) being 0.771, 0.754, and 0.722, respectively, all of which were higher than those of the TNM stage.ConclusionsIn this study, we uncovered the biological function of CAGs in the TME and its correlations with clinicopathological parameters and patients’ prognosis in LUAD. These findings could provide new angles for immunotherapy of LUAD patients.
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Mascalchi M, Picozzi G, Puliti D, Gorini G, Mantellini P, Sali L. Single CT Appointment for Double Lung and Colorectal Cancer Screening: Is the Time Ripe? Diagnostics (Basel) 2022; 12:2326. [PMID: 36292015 PMCID: PMC9601268 DOI: 10.3390/diagnostics12102326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2022] [Revised: 09/15/2022] [Accepted: 09/21/2022] [Indexed: 12/24/2022] Open
Abstract
Annual screening of lung cancer (LC) with chest low-dose computed tomography (CT) and screening of colorectal cancer (CRC) with CT colonography every 5 years are recommended by the United States Prevention Service Task Force. We review epidemiological and pathological data on LC and CRC, and the features of screening chest low-dose CT and CT colonography comprising execution, reading, radiation exposure and harm, and the cost effectiveness of the two CT screening interventions. The possibility of combining chest low-dose CT and CT colonography examinations for double LC and CRC screening in a single CT appointment is then addressed. We demonstrate how this approach appears feasible and is already reasonable as an opportunistic screening intervention in 50–75-year-old subjects with smoking history and average CRC risk. In addition to the crucial role Computer Assisted Diagnosis systems play in decreasing the test reading times and the need to educate radiologists in screening chest LDCT and CT colonography, in view of a single CT appointment for double screening, the following uncertainties need to be solved: (1) the schedule of the screening CT; (2) the effectiveness of iterative reconstruction and deep learning algorithms affording an ultra-low-dose CT acquisition technique and (3) management of incidental findings. Resolving these issues will imply new cost-effectiveness analyses for LC screening with chest low dose CT and for CRC screening with CT colonography and, especially, for the double LC and CRC screening with a single-appointment CT.
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Tang H, Qiao C, Wang Y, Bai C, Qian X. Characteristics and Prognostic Nomogram for Primary Lung Lepidic Adenocarcinoma. Can Respir J 2022; 2022:1-12. [PMID: 36091329 PMCID: PMC9453021 DOI: 10.1155/2022/3676547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Revised: 06/20/2022] [Accepted: 07/21/2022] [Indexed: 11/18/2022] Open
Abstract
Background. Lepidic adenocarcinoma (LPA) is an infrequent subtype of invasive pulmonary adenocarcinoma (ADC). However, the clinicopathological features and prognostic factors of LPA have not been elucidated. Methods. Data from the Surveillance, Epidemiology, and End Results (SEER) database of 4191 LPA patients were retrospectively analyzed and compared with non-LPA pulmonary ADC to explore the clinicopathological and prognosis features of LPA. Univariate and multivariate Cox proportional hazard models were performed to identify independent survival predictors for further nomogram development. The nomograms were validated using the concordance index, receiver operating characteristic curves, and calibration plots, as well as decision curve analysis, in both the training and validation cohorts. Results. Compared with non-LPA pulmonary ADC patients, those with LPA exhibited unique clinicopathological features, including more elderly and female patients, smaller tumor size, less pleural invasion, and lower histological grade and stage. Multivariate analyses showed that age, sex, race, tumor location, primary tumor size, pleural invasion, histological grade, stage, primary tumor surgery, and chemotherapy were independently associated with overall survival (OS) and cancer-specific survival (CSS) in patients with LPA. The nomograms showed good accuracy compared with the actual observed results and demonstrated improved prognostic capacity compared with the TNM stage. Conclusions. LPA is more frequently diagnosed in older people and women. LPA was inclined to be smaller in tumor size and lower in tumor grade and staging, which may indicate a favorable prognosis. The constructed nomograms accurately predict the long-term survival of LPA patients.
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Zhang B, Wang D, Wang Y, Chen G. miRNA-338-3p inhibits the migration, invasion and proliferation of human lung adenocarcinoma cells by targeting MAP3K2. Aging (Albany NY) 2022; 14. [PMID: 35929837 DOI: 10.18632/aging.204198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Accepted: 07/15/2022] [Indexed: 11/25/2022]
Abstract
Objective: This study aimed to investigate the effects of micro ribonucleic acid (miR)-338-3p on the migration, invasion and proliferation of lung adenocarcinoma (LUAD) cells. Methods: Bioinformatics analysis was employed to evaluate the function and expression of related genes in lung cancer. Human A549 and NCI-H1299 cells cultured to logarithmic growth stage were assigned to negative control (NC) mimic group, miR-338-3p mimic group (miR-mimic group), NC inhibitor group and miR-338-3p inhibitor group (miR-inhibitor group) treated with or without MAP3K2 overexpression (OE)-lentivirus, or TBHQ or FR180204. Transwell assay, cell colony formation assay, Western blotting and cell-cycle analysis were carried out. Results: Bioinformatics results manifested that miR-338 and MAP3K2 were involved in LUAD. The expression levels of MAP3K2, p-ERK1/2, MMP-2, MMP-3, MMP-9, cyclin A2 and cyclin D1 were increased after addition of miR-338-3p inhibitor, consistent with the raised amount of LUAD cells in migration and invasion experiments and number of colonies formed, as well as the cell cycle, but miR-338-3p mimic reversed these results. Moreover, MAP3K2 overexpression elevated the level of p-ERK1/2. Meanwhile, after treatment with TBHQ or FR180204, the influence of miR-338-3p inhibitor or mimic was also verified. Conclusions: MiR-338-3p overexpression can modulate the ERK1/2 signaling pathway by targeting MAP3K2, thus inhibiting the migration, invasion and proliferation of human LUAD cells.
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Akhtar Z, Laageide L, Robles J, Winters C, Wall GC, Mallen J, Jawa Z. Unusual presentation of lepidic adenocarcinoma in a healthy female. BMC Pulm Med 2022; 22:197. [PMID: 35578218 PMCID: PMC9109452 DOI: 10.1186/s12890-022-01969-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Accepted: 04/24/2022] [Indexed: 11/26/2022] Open
Abstract
Background Lepidic adenocarcinoma represents a histologic pattern of non-small cell lung cancer that characteristically arises in the lung periphery with tracking alongside pre-existing alveolar walls. Noninvasive and invasive variants of lepidic adenocarcinoma are dependent on parenchymal destruction, vascular, or pleural invasion. The lepidic-predominant lung malignancies are collectively recognized as slow growing with rare metastasis and excellent prognosis. The World Health Organization classification of lung malignancies depends on molecular and histopathological findings. CT findings most commonly include ground-glass characteristics, commonly mistaken for inflammatory or infectious etiology. These tumors are generally surgically resectable and associated with better survival given infrequent nodal and extrathoracic involvement. Rarely these tumors present with diffuse pneumonic-type involvement associated with worse outcomes despite lack of nodal and distant metastases. Case presentation A 63-year-old Caucasian athletic immunocompetent female presented with 2 months of progressive shortness of breath, fatigue, loss of appetite and 15 pound weight loss. History was only notable for well controlled essential hypertension and hypothyroidism. Contrast computed tomography angiogram and positron emission tomography revealed diffuse hypermetabolic interstitial and airspace abnormalities of the lungs without lymphadenopathy (or distant involvement) in addition to right hydropneumothorax and left pleural effusion. Baseline laboratory testing was unremarkable, and extensive bacterial and fungal testing returned negative. Bronchoscopy and video-assisted thoracoscopic surgery was subsequently performed with pleural fluid cytology, lung and pleural biopsies returning positive for lepidic adenocarcinoma with 2% programmed death ligand 1 expression and genomic testing positive for PTEN gene deletion. Prior to treatment, the patient perished on day 15 of admission. Conclusion We present a rare case of lepidic predominant adenocarcinoma with extensive bilateral aerogenous spread in the context of no lymphovascular invasion in a healthy, low risk patient. This case presentation may add to the body of knowledge regarding the different behavior patterns of lepidic predominant adenocarcinomas.
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Affiliation(s)
- Zaheer Akhtar
- PGY3 Internal Medicine Resident, Department of Medical Education, UnityPoint Health, Des Moines, IA, USA. .,Department of Medicine, UnityPoint Health, Des Moines, IA, USA.
| | - Leah Laageide
- Department of Medicine, UnityPoint Health, Des Moines, IA, USA
| | - Julian Robles
- Department of Medicine, UnityPoint Health, Des Moines, IA, USA
| | | | - Geoffrey C Wall
- Drake College of Pharmacy and Health Sciences, Des Moines, IA, USA
| | - James Mallen
- Department of Pulmonology, The Iowa Clinic and UnityPoint Health, Des Moines, IA, USA
| | - Zeeshan Jawa
- John Stoddard and Mission Cancer Center, Des Moines, IA, USA
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Wang X, Yin J. The biological function of the long non-coding RNA endogenous born avirus-like nucleoprotein in lung adenocarcinoma is mediated through the microRNA-655-3p/B-cell lymphoma-2 axis. Bioengineered 2022; 13:10679-10690. [PMID: 35473552 PMCID: PMC9208490 DOI: 10.1080/21655979.2022.2065946] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
Lung adenocarcinoma (LUAD) is a subtype of lung cancer, and therapy remains a great challenge. A growing body of evidence shows that long-chain non-coding RNAs (lncRNAs) play an important role in the occurrence and development of LUAD. This study investigated the roles and mechanisms of action of EBLN3P in LUAD. The bioinformatics software starBase and TargetScan were used to predict the binding sites of the lncRNA endogenous born avirus-like nucleoprotein (EBLN3P) and microRNA (miR)-655-3p in LUAD. The regulatory role of EBLN3P and miR-655-3p in cell proliferation was verified through the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl-2 H-tetrazolium bromide (MTT) assay. The binding sites between EBLN3P, miR-655-3p, and B-cell lymphoma-2 (Bcl-2) were assessed using dual-luciferase reporter assay, western blotting, and quantitative reverse transcription polymerase chain reaction (qRT-PCR). Flow cytometry (FCM) was performed to analyze the apoptotic rates of A549 cells after transfection. The results revealed that EBLN3P was upregulated, whereas miR-655-3p was downregulated in LUAD cell lines (A549 and NCI-H23). Bioinformatics analysis and dual-luciferase reporter assays indicated that EBLN3P interacted with miR-655-3p. Knockdown of EBLN3P notably inhibited the bioactivity and induced apoptosis in A549 cells by upregulating miR-655-3p. Mechanistically, miR-655-3p inhibits cell viability and induces apoptosis by inhibiting Bcl-2 expression. The high expression of Bcl-2 reversed the impact of miR-655-3p on the inhibition of cell bioactivity and induction of apoptosis in A549 cells. In conclusion, this study demonstrated that EBLN3P silencing inhibits bioactivity and induces apoptosis via the miR-655-3p/Bcl-2 axis, providing a potential therapeutic target for lung adenocarcinoma.
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Affiliation(s)
- Xiaopeng Wang
- Department of Respiratory and Critical Care Medicine, Puren Hospital Affiliated to Wuhan University of Science and Technology, Wuhan, China
| | - Jing Yin
- Department of Respiratory and Critical Care Medicine, Renmin Hospital of Wuhan University, Wuhan, China
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Cao Y, Geng J, Wang X, Meng Q, Xu S, Lang Y, Zhou Y, Qi L, Wang Z, Wei Z, Yu Y, Jin S, Pan B. RNA-binding motif protein 10 represses tumor progression through the Wnt/β- catenin pathway in lung adenocarcinoma. Int J Biol Sci 2022; 18:124-139. [PMID: 34975322 PMCID: PMC8692145 DOI: 10.7150/ijbs.63598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Accepted: 10/16/2021] [Indexed: 11/17/2022] Open
Abstract
RNA-binding motif protein 10 (RBM10), one of the members of the RNA-binding protein (RBP) family, has a tumor suppressor role in multiple cancers. However, the functional role of RBM10 in lung adenocarcinoma (LUAD) and the underlying molecular mechanism remains unclear. In this study, we observed that RBM10 is significantly downregulated in LUAD tissues compared with normal tissues. Low RBM10 expression is significantly associated with poor outcome of LUAD patients. In vitro and in vivo experiments show that RBM10 inhibits cell proliferation, metastasis and EMT progression in LUAD. Mechanistically, we demonstrate that RBM10 interacts with β-catenin interacting protein 1 (CTNNBIP1) and positively regulates its expression, disrupting the binding of β-catenin to the transcription factor TCF/LEF, thereby inactivating the Wnt/β-catenin pathway. In conclusion, this is the first study reporting the role of RBM10 in suppressing LUAD progression at least via partly inactivating the Wnt/β-catenin pathway, which provides new insights into the tumorigenesis and metastasis of LUAD. Thus, RBM10 may be a promising new therapeutic target or clinical biomarker for LUAD therapy in the future.
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Affiliation(s)
- Yingyue Cao
- Department of Medical Oncology, Harbin Medical University Cancer Hospital, Haping Road No 150, Harbin 150040, China
| | - Jianxiong Geng
- Department of Medical Oncology, Harbin Medical University Cancer Hospital, Haping Road No 150, Harbin 150040, China
| | - Xin Wang
- Department of Medical Oncology, Harbin Medical University Cancer Hospital, Haping Road No 150, Harbin 150040, China
| | - Qingwei Meng
- Department of Medical Oncology, Harbin Medical University Cancer Hospital, Haping Road No 150, Harbin 150040, China
| | - Shanqi Xu
- Department of Medical Oncology, Harbin Medical University Cancer Hospital, Haping Road No 150, Harbin 150040, China
| | - Yaoguo Lang
- Department of Medical Oncology, Harbin Medical University Cancer Hospital, Haping Road No 150, Harbin 150040, China
| | - Yongxu Zhou
- Department of hepatopancreatobiliary surgery, Second Affiliated Hospital of Harbin Medical University, Harbin, 150040, China
| | - Lishuang Qi
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, 150040, China
| | - Zijie Wang
- Department of Medical Oncology, Harbin Medical University Cancer Hospital, Haping Road No 150, Harbin 150040, China
| | - Zixin Wei
- Department of Medical Oncology, Harbin Medical University Cancer Hospital, Haping Road No 150, Harbin 150040, China
| | - Yan Yu
- Department of Medical Oncology, Harbin Medical University Cancer Hospital, Haping Road No 150, Harbin 150040, China
| | - Shi Jin
- National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital & Shenzhen Hospital, Chinese Academy of Medical Sciences and Perking Union Medical College, Shenzhen, 518116, China
| | - Bo Pan
- Department of Medical Oncology, Harbin Medical University Cancer Hospital, Haping Road No 150, Harbin 150040, China
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Raghunathareddy MV, Indumathi G, Niranjan KR. Highly sensitive optical MEMS based photonic biosensor for colon tissue detection. ELECTRENG 2022. [DOI: 10.3934/electreng.2022017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
<abstract>
<p>Biological component of cells, protein has been effectively studied and investigated using biological sensors. Photonic crystal-based sensor is highly sensitive optical nanostructure it can be manipulated to affect the motion of photon for users' application. In the proposed work microcavity based photonic crystal biosensor has been designed and investigated for its different optical sensing evaluation parameters such as transmission efficiency, sensitivity, Q factor and peak resonant wavelengths. Sensor is designed and analyzed for early detection of colon cancer tissues in blood. Radius of defect micropillar has been increased from 0.16 µm to 0.19 µm. High Quality factor 10232 has been achieved with the micro pillar radius of 0.17 µm and sensitivity 700nm/RIU. Similarly, radius of 0.16 µm, 0.18 µm and 0.19 µm has attained quality factor and sensitivity such as 5324, 7232, 8343 and 111 nm/RIU, 320 nm/RIU and 340 nm/RIU respectively. Compared other work in literature, proposed work has shown better sensing capability. Designed sensor has shown remarkable output and feasibility for future fabrication.</p>
</abstract>
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Deng Z, Xiao Q, Zheng Y, Feng R, Sheng Z, Zhang B. [CCL18 Promotes the Invasion of Lung Adenocarcinoma through ANXA2]. Zhongguo Fei Ai Za Zhi 2021; 24:461-467. [PMID: 34120429 PMCID: PMC8317094 DOI: 10.3779/j.issn.1009-3419.2021.103.07] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
BACKGROUND ANXA2 plays a very important role in cancer progression. chemokine ligand 18 (CCL18) is associated with the invasion, migration, metastasis and poor prognosis of lung adenocarcinoma (LUAD). In this study, we aimed to explore whether CCL18 promotes LUAD invasion through ANXA2, and its role and molecular mechanism in LUAD invasion. METHODS Western blot was used to detect ANXA2 expression in LUAD tissues and adjacent non-tumor tissues, the transfection efficiency of SiANXA2#2 in cells and the role of ANXA2 as an upstream regulator in the AKT/cofilin signaling pathway. In vitro cytological experiments such as chemotaxis experiment and transwell invasion test was used to explore the mechanism of ANXA2 on LUAD metastasis. F-actin polymerization experiment and Western blot were used to detect whether invasion ability alteration of SiANXA2#2 A549 cells are related to F-actin. RESULTS Western blot analysis showed that compared with adjacent non-tumor tissues, the protein expression level of ANXA2 in cancer tissues increased (P<0.05). In the chemotaxis experiment and invasion experiment, the chemotaxis and invasion ability induced by CCL18 decreased when ANXA2 knockdowned (P<0.05). Compared with the control group, F-actin polymerization was significantly lower in ANXA2 knockdown group, while phosphorylation of AKT at Ser473 and Thr308 and phosphorylation of Cofilin and LIMK were reduced in ANXA2 knockdown group (P<0.05). CONCLUSIONS ANXA2 knockdown can reduce the invasive effect of CCL18 on LUAD cells by reducing phosphorylation of AKT and downstream pathways.
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Affiliation(s)
- Zikun Deng
- Department of Clinical Pathology; Department of Pathology, Weifang Medical University, Weifang 261042, China
| | - Qinpei Xiao
- Department of Clinical Pathology; Department of Pathology, Weifang Medical University, Weifang 261042, China
| | - Yuanhang Zheng
- Department of Clinical Pathology; Department of Pathology, Weifang Medical University, Weifang 261042, China
| | - Ruijun Feng
- Department of Clinical Pathology; Department of Pathology, Weifang Medical University, Weifang 261042, China
| | - Zhimei Sheng
- Department of Clinical Pathology; Department of Pathology, Weifang Medical University, Weifang 261042, China
| | - Baogang Zhang
- Department of Clinical Pathology; Department of Pathology, Weifang Medical University, Weifang 261042, China
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Zhu HE, Li T, Shi S, Chen DX, Chen W, Chen H. ESCO2 promotes lung adenocarcinoma progression by regulating hnRNPA1 acetylation. J Exp Clin Cancer Res 2021; 40:64. [PMID: 33573689 PMCID: PMC7876794 DOI: 10.1186/s13046-021-01858-1] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Accepted: 01/25/2021] [Indexed: 02/08/2023]
Abstract
BACKGROUND Emerging evidence indicates that metabolism reprogramming and abnormal acetylation modification play an important role in lung adenocarcinoma (LUAD) progression, although the mechanism is largely unknown. METHODS Here, we used three public databases (Oncomine, Gene Expression Omnibus [GEO], The Cancer Genome Atlas [TCGA]) to analyze ESCO2 (establishment of cohesion 1 homolog 2) expression in LUAD. The biological function of ESCO2 was studiedusing cell proliferation, colony formation, cell migration, and invasion assays in vitro, and mouse xenograft models in vivo. ESCO2 interacting proteins were searched using gene set enrichment analysis (GSEA) and mass spectrometry. Pyruvate kinase M1/2 (PKM) mRNA splicing assay was performed using RT-PCR together with restriction digestion. LUAD cell metabolism was studied using glucose uptake assays and lactate production. ESCO2 expression was significantly upregulated in LUAD tissues, and higher ESCO2 expression indicated worse prognosis for patients with LUAD. RESULTS We found that ESCO2 promoted LUAD cell proliferation and metastasis metabolic reprogramming in vitro and in vivo. Mechanistically, ESCO2 increased hnRNPA1 (heterogeneous nuclear ribonucleoprotein A1) binding to the intronic sequences flanking exon 9 (EI9) of PKM mRNA by inhibiting hnRNPA1 nuclear translocation, eventually inhibiting PKM1 isoform formation and inducing PKM2 isoform formation. CONCLUSIONS Our findings confirm that ESCO2 is a key factor in promoting LUAD malignant progression and suggest that it is a new target for treating LUAD.
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Affiliation(s)
- Hui-Er Zhu
- Department of General Practice, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, Guangdong, 510150, P.R. China
| | - Tao Li
- Department of Anesthesiology, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, Guangdong, 510150, P.R. China
| | - Shengnan Shi
- State Key Laboratory of Animal Breeding, Institute of Animal Science, Guangdong Academy of Agricultural Sciences, South China Key Laboratory of Animal Nutrition and Feed, Ministry of Agriculture, Guangzhou, 510640, P. R. China
| | - De-Xiong Chen
- Department of General Practice, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, Guangdong, 510150, P.R. China
| | - Weiping Chen
- Department of Respiratory, The People's Hospital of Qingyuan, Sixth Affiliate Hospital of Guangzhou Medical University, Qingyuan, 511518, P. R. China.
| | - Hui Chen
- Department of Pathology, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, Guangdong, 510150, P.R. China.
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22
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Wang J, Gao J, Chen Q, Zou W, Yang F, Wei C, Wang Z. LncRNA LINC01116 Contributes to Cisplatin Resistance in Lung Adenocarcinoma. Onco Targets Ther 2020; 13:9333-9348. [PMID: 33061421 PMCID: PMC7519870 DOI: 10.2147/ott.s244879] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Accepted: 08/11/2020] [Indexed: 12/12/2022] Open
Abstract
Background Long non-coding RNAs (lncRNAs) have been found to contribute to cisplatin resistance in several cancers; however, the role of lncRNA LINC01116 in cisplatin resistance remains unknown in non-small-cell lung cancer. This study aimed to examine the contribution of LINC01116 to cisplatin resistance in lung adenocarcinoma (LAD). Materials and Methods Cisplatin-resistant A549/DDP cells were generated by treatment with cisplatin by dose escalation. LINC01116 expression was compared between A549 and A549/DDP cells, and between cisplatin-resistant and non-resistant LAD specimens. The cell viability, colony formation, proliferation, migration and invasion were measured using MTT and Transwell assays, and cell apoptosis and cell cycle were detected using flow cytometry. The expression of E-cadherin and Vimentin was quantified. LAD xenografts were modeled in nude mice to investigate the role of LINC01116 on the resistance of LAD to cisplatin. Results MTT assay measured the IC50 values of 13.49 ± 1.62 and 3.52 ± 1.33 μg/mL for A549/DDP and A549 cells, respectively. LINC01116 was overexpressed in cisplatin-resistant LAD specimens and A549/DDP cells (P < 0.05). Knockdown of LINC01116 inhibited cell viability, proliferation, migration and invasion, promoted apoptosis and enhanced the sensitivity to cisplatin in A549/DDP cells, while LINC01116 overexpression promoted cell viability, proliferation, migration and invasion, inhibited apoptosis and reduced the sensitivity to cisplatin in A549 cells. LINC01116 knockdown resulted in a 2.1-fold increase in E-cadherin expression and a 56% reduction in Vimentin expression in A549/DDP cells, and LINC01116 overexpression resulted in a 45% reduction in E-cadherin expression and a 1.82-fold increase in Vimentin expression in A549 cells. Conclusion Dysregulation of lncRNA LINC01116 expression results in resistance of LAD to cisplatin via the EMT process. Our findings support the oncogenic role of LINC01116 to promote the development of cisplatin resistance in LAD, and LINC01116 may be a novel predictor of poor response to cisplatin.
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Affiliation(s)
- Junbin Wang
- Department of Oncology, The Second Affiliated Hospital of Nanjing Medical University, Nanjing 210011, People's Republic of China.,Department of Oncology, The First Affiliated Hospital of Bengbu Medical College, Bengbu 233004, People's Republic of China
| | - Jin Gao
- Department of Oncology, The Second Affiliated Hospital of Nanjing Medical University, Nanjing 210011, People's Republic of China
| | - Qinnan Chen
- Department of Oncology, The Second Affiliated Hospital of Nanjing Medical University, Nanjing 210011, People's Republic of China
| | - Weiyan Zou
- Department of Histology and Embryology, Bengbu Medical College, Bengbu 233030, People's Republic of China
| | - Fen Yang
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Nanjing Medical University, Nanjing 211166, People's Republic of China
| | - Chenchen Wei
- Department of Oncology, The Second Affiliated Hospital of Nanjing Medical University, Nanjing 210011, People's Republic of China
| | - Zhaoxia Wang
- Department of Oncology, The Second Affiliated Hospital of Nanjing Medical University, Nanjing 210011, People's Republic of China
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