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Zhang J, Liu X, Zeng L, Hu Y. GABRP inhibits the progression of oesophageal cancer by regulating CFTR: Integrating bioinformatics analysis and experimental validation. Int J Exp Pathol 2024; 105:118-132. [PMID: 38989629 PMCID: PMC11263814 DOI: 10.1111/iep.12513] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2024] [Revised: 05/23/2024] [Accepted: 06/08/2024] [Indexed: 07/12/2024] Open
Abstract
Oesophageal cancer (EC) is a malignancy which accounts for a substantial number of cancer-related deaths worldwide. The molecular mechanisms underlying the pathogenesis of EC have not been fully elucidated. GSE17351 and GSE20347 data sets from the Gene Expression Omnibus (GEO) database were employed to screen differentially expressed genes (DEGs). Reverse transcription quantitative PCR (RT-qPCR) was used to examine hub gene expression. ECA-109 and TE-12 cells were transfected using the pcDNA3.1 expression vector encoding GABRP. The cell counting kit-8 (CCK-8), cell scratch and Transwell assays were performed to assess the effect of GABRP on EC cell proliferation, migration and invasion. Epithelial-mesenchymal transition (EMT)-associated protein levels were measured by Western blotting. Subsequently, CFTR was knocked down to verify whether GABRP affected biological events in EC cells by targeting CFTR. Seven hub genes were identified, including GABRP, FLG, ENAH, KLF4, CD24, ABLIM3 and ABLIM1, which all could be used as diagnostic biomarkers for EC. The RT-qPCR results indicated that the expression levels of GABRP, FLG, KLF4, CD24, ABLIM3 and ABLIM1 were downregulated, whereas the expression level of ENAH was upregulated. In vitro functional assays demonstrated that GABRP overexpression suppressed the proliferation, migration, invasion and EMT of EC cells. Mechanistically, GABRP promoted the expression of CFTR, and CFTR knockdown significantly counteracted the influence of GABRP overexpression on biological events in EC cells. Overexpression of GABRP inhibited EC progression by increasing CFTR expression, which might be a new target for EC treatment.
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Affiliation(s)
- Jingzhi Zhang
- Department of GastroenterologyThe Affiliated Ganzhou Hospital of Nanchang UniversityGanzhou CityChina
| | - Xue Liu
- Department of GastroenterologyThe Affiliated Ganzhou Hospital of Nanchang UniversityGanzhou CityChina
| | - Ling Zeng
- Department of GastroenterologyThe Affiliated Ganzhou Hospital of Nanchang UniversityGanzhou CityChina
| | - Ying Hu
- Department of GastroenterologyThe First Affiliated Hospital of Gannan Medical UniversityGanzhou CityChina
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Yu H, Wang Z, Dong Y, Li L, Fan X, Zheng N, Jiang J, Lin C, Lu C, Li K, Feng M. AXIN1/MYC Axis Mediated the Osimertinib Resistance in EGFR Mutant Non-Small Cell Lung Cancer Cells. TOHOKU J EXP MED 2024; 262:269-276. [PMID: 38233113 DOI: 10.1620/tjem.2024.j002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2024]
Abstract
Osimertinib, a promising and approved third-generation epidermal growth factor receptor (EGFR) tyrosine kinase inhibitor (TKI), is a standard strategy for EGFR-mutant non-small cell lung cancer (NSCLC) patients. However, developed resistance is unavoidable, which reduces its long-term effectiveness. In this study, RNA sequencing was performed to analyze differentially expressed genes (DEGs). The PrognoScan database and Gene Expression Profiling Interactive Analysis (GEPIA) were used to identify the key genes for clinical prognosis and gene correlation respectively. Protein expression was determined by western blot analysis. Cell viability assay and Ki67 staining were used to evaluate the effect of osimertinib on tumor cells. Finally, we screened out two hub genes, myelocytomatosis oncogene (Myc) and axis inhibition protein 1 (Axin1), upregulated in three osimertinib-resistant cell lines through RNA sequencing and bioinformatics analysis. Next, cell experiment confirmed that expression of C-MYC and AXIN1 were elevated in different EGFR mutant NSCLC cell lines with acquired resistance to osimertinib, compared with their corresponding parental cell lines. Furthermore, we demonstrated that AXIN1 upregulated the expression of C-MYC and mediated the acquired resistance of EGFR mutant NSCLC cells to osimertinib in vitro. In conclusion, AXIN1 affected the sensitivity of EGFR mutant NSCLC to osimertinib via regulating C-MYC expression in vitro. Targeting AXIN1/MYC signaling may be a potential new strategy for overcoming acquired resistance to osimertinib.
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Affiliation(s)
- Haoyue Yu
- Department of Respiratory Disease, Daping Hospital, Army Medical University (Third Military Medical University)
- Department of Oncology, The First Affiliated Hospital of Dalian Medical University
| | - Zhiguo Wang
- Department of Respiratory Disease, Daping Hospital, Army Medical University (Third Military Medical University)
- Department of Respiratory and Critical Care Medicine, Affiliated Hospital of Southwest Medical University
| | - Yan Dong
- Department of Oncology, The First Affiliated Hospital of Dalian Medical University
| | - Li Li
- Department of Respiratory Disease, Daping Hospital, Army Medical University (Third Military Medical University)
| | - Xianming Fan
- Department of Respiratory and Critical Care Medicine, Affiliated Hospital of Southwest Medical University
| | - Nan Zheng
- Department of Respiratory Disease, Daping Hospital, Army Medical University (Third Military Medical University)
| | - Ji Jiang
- Department of Respiratory Disease, Daping Hospital, Army Medical University (Third Military Medical University)
| | - Caiyu Lin
- Department of Respiratory Disease, Daping Hospital, Army Medical University (Third Military Medical University)
| | - Conghua Lu
- Department of Respiratory Disease, Daping Hospital, Army Medical University (Third Military Medical University)
| | - Kunlin Li
- Department of Respiratory Disease, Daping Hospital, Army Medical University (Third Military Medical University)
| | - Mingxia Feng
- Department of Respiratory Disease, Daping Hospital, Army Medical University (Third Military Medical University)
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Kürner K, Greuter L, Roethlisberger M, Brand Y, Frank S, Guzman R, Soleman J. Pediatric sellar teratoma - Case report and review of the literature. Childs Nerv Syst 2024; 40:1259-1270. [PMID: 38276973 DOI: 10.1007/s00381-024-06296-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Accepted: 01/17/2024] [Indexed: 01/27/2024]
Abstract
BACKGROUND Intracranial teratoma represents a rare neoplasm, occurring predominantly during childhood. Characteristic symptoms depend on the location but are mainly hydrocephalus, visual disturbances, hypopituitarism, and diabetes insipidus. Initial diagnosis can be challenging due to similar radiological features in both teratomas and other lesions such as craniopharyngiomas. Gross total resection is recommended if feasible and associated with a good prognosis. CASE DESCRIPTION A 10-year-old girl presented with newly diagnosed growth retardation, fatigue, cephalgia and bilateral hemianopia. Further laboratory analysis confirmed central hypothyroidism and hypercortisolism. Cranial magnetic resonance imaging showed a cystic space-occupying lesion in the sellar and suprasellar compartment with compression of the optic chiasm without hydrocephalus present, suspicious of craniopharyngioma. Subsequently, an endonasal endoscopic transsphenoidal near-total tumor resection with decompression of the optic chiasm was performed. During postoperative recovery the patient developed transient diabetes insipidus, the bilateral hemianopia remained unchanged. The patient could be discharged in a stable condition, while hormone replacement for multiple pituitary hormone deficiency was required. Surprisingly, histopathology revealed conspicuous areas of skin with formation of hairs and squamous epithelia, compatible with a mature teratoma. CONCLUSIONS We present an extremely rare case of pediatric sellar teratoma originating from the pituitary gland and a review of literature focusing on the variation in presentation and treatment. Sellar teratomas are often mistaken for craniopharyngioma due to their similar radiographic appearances. However, the primary goal of treatment for both pathologies is to decompress eloquent surrounding structures such as the optic tract, and if applicable, resolution of hydrocephalus while avoiding damage to the pituitary stalk and especially the hypothalamic structures. If feasible, the aim of surgery should be gross total resection.
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Affiliation(s)
- Katja Kürner
- Department of Neurosurgery, University Hospital of Basel, Spitalstrasse 21, 4031, Basel, Switzerland
| | - Ladina Greuter
- Department of Neurosurgery, University Hospital of Basel, Spitalstrasse 21, 4031, Basel, Switzerland
| | - Michel Roethlisberger
- Department of Neurosurgery, University Hospital of Basel, Spitalstrasse 21, 4031, Basel, Switzerland
- Faculty of Medicine, University of Basel, Basel, Switzerland
| | - Yves Brand
- Faculty of Medicine, University of Basel, Basel, Switzerland
- Department of Otorhinolaryngology, Cantonal Hospital Graubünden, Chur, Switzerland
| | - Stephan Frank
- Department of Pathology, Division of Neuropathology, University Hospital of Basel, Basel, Switzerland
| | - Raphael Guzman
- Department of Neurosurgery, University Hospital of Basel, Spitalstrasse 21, 4031, Basel, Switzerland
- Faculty of Medicine, University of Basel, Basel, Switzerland
- Division of Pediatric Neurosurgery, University Children's Hospital of Basel, Basel, Switzerland
| | - Jehuda Soleman
- Department of Neurosurgery, University Hospital of Basel, Spitalstrasse 21, 4031, Basel, Switzerland.
- Faculty of Medicine, University of Basel, Basel, Switzerland.
- Division of Pediatric Neurosurgery, University Children's Hospital of Basel, Basel, Switzerland.
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Zhang Y, Liang S, Zhang Y, Liu M, Zhang K. Identification of a novel endocytosis‑associated gene signature for prognostic prediction in lung adenocarcinoma. Oncol Lett 2023; 26:511. [PMID: 37920434 PMCID: PMC10618919 DOI: 10.3892/ol.2023.14098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Accepted: 09/21/2023] [Indexed: 11/04/2023] Open
Abstract
Lung cancer is one of the most common malignant solid tumors and the leading cause of cancer-associated mortality worldwide. Endocytosis is an essential physiological activity for cells to maintain membrane homeostasis, and has been reported to serve an important role in tumorigenesis and progression. In the present study, the aim was to construct a prognostic prediction model of endocytosis-associated genes for patients with lung adenocarcinoma (LUAD). The endocytosis-associated gene signature was established using Lasso Cox regression analysis using the training set of the LUAD cohort from The Cancer Genome Atlas (TCGA) database, and verified using two datasets from the Gene Expression Omnibus (GEO) database. Kaplan-Meier survival curves were used to evaluate the effectiveness of the prognostic evaluation of patients with LUAD. Differentially expressed genes were screened in the tumor tissue of patients compared with paired paracancerous tissues. A series of candidate genes associated to the prognosis of patients with LUAD was obtained using univariate Cox's regression analysis. Using the Lasso Cox regression analysis, an appropriate risk model with 18 endocytosis-associated genes was established. A high-risk score was positively correlated with a higher tumor stage and pathologic grade. Patients with LUAD and high-risk scores had shorter survival times, increased intratumor heterogeneities and immune cell infiltration into tumor tissues, compared with those patients with LUAD and low-risk scores. The endocytosis inhibitor chloroquine could repress proliferation and increase the apoptosis of lung cancer cells. In summary, a novel endocytosis-associated gene signature was constructed using TCGA and GEO datasets. Patients with LUAD and high-risk scores, as calculated by the signature, had a poor prognosis and short survival time.
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Affiliation(s)
- Yixin Zhang
- Department of Blood Transfusion, Tianjin Hospital, Tianjin 300211, P.R. China
| | - Siwen Liang
- School of Optometry & Ophthalmology, Tianjin Medical University, Tianjin 300070, P.R. China
| | - Yan Zhang
- Department of Blood Transfusion, Tianjin Hospital, Tianjin 300211, P.R. China
| | - Minghui Liu
- Department of Lung Cancer Surgery, Tianjin Medical University General Hospital, Tianjin 300052, P.R. China
| | - Kai Zhang
- Department of Blood Transfusion, Tianjin Hospital, Tianjin 300211, P.R. China
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Using bioinformatics approaches to identify survival-related oncomiRs as potential targets of miRNA-based treatments for lung adenocarcinoma. Comput Struct Biotechnol J 2022; 20:4626-4635. [PMID: 36090818 PMCID: PMC9449502 DOI: 10.1016/j.csbj.2022.08.042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2022] [Revised: 08/17/2022] [Accepted: 08/18/2022] [Indexed: 11/23/2022] Open
Abstract
Lung cancer is a major cause of cancer-associated deaths worldwide, and lung adenocarcinoma (LUAD) is the most common lung cancer subtype. Micro RNAs (miRNAs) regulate the pattern of gene expression in multiple cancer types and have been explored as potential drug development targets. To develop an oncomiR-based panel, we identified miRNA candidates that show differential expression patterns and are relevant to the worse 5-year overall survival outcomes in LUAD patient samples. We further evaluated various combinations of miRNA candidates for association with 5-year overall survival and identified a four-miRNA panel: miR-9-5p, miR-1246, miR-31-3p, and miR-3136-5p. The combination of these four miRNAs outperformed any single miRNA for predicting 5-year overall survival (hazard ratio [HR]: 3.47, log-rank p-value = 0.000271). Experiments were performed on lung cancer cell lines and animal models to validate the effects of these miRNAs. The results showed that singly transfected antagomiRs largely inhibited cell growth, migration, and invasion, and the combination of all four antagomiRs considerably reduced cell numbers, which is twice as effective as any single miRNA-targeted transfected. The in vivo studies revealed that antagomiR-mediated knockdown of all four miRNAs significantly reduced tumor growth and metastatic ability of lung cancer cells compared to the negative control group. The success of these in vivo and in vitro experiments suggested that these four identified oncomiRs may have therapeutic potential.
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