VPS33B suppresses lung adenocarcinoma metastasis and hemoresistance to Cisplatin

Publication date: Available online 8 January 2020Source: Genes &DiseasesAuthor(s): Zhen Liu, Jiahao Liu, Yang Li, Hao Wang, Zixi Liang, Xiaojie Deng, Qiaofen Fu, Weiyi Fang, Ping XuAbstractThe presence of VPS33B in tumors has rarely been reported. Downregulated VPS33B protein expression is an unfavorable factor that promotes the pathogenesis of lung adenocarcinoma (LUAD). Overexpressed VPS33B was shown to reduce the migration, invasion, metastasis, and chemoresistance of LUAD cells to cisplatin (DDP) in vivo and in vitro. Mechanistic analyses have indicated that VPS33B first suppresses epidermal growth factor receptor (EGFR) Ras/ERK signaling, which further reduces the expression of the oncogenic factor c-Myc. Downregulated c-Myc expression reduces the rate at which it binds the p53 promoter and weakens its transcription inhibition; therefore, decreased c-Myc stimulates p53 expression, leading to decreased epithelial-to-mesenchymal transition (EMT) signal. NESG1 has been shown to be an unfavorable indicator of non-small-cell lung cancer (NSCLC). Here, NESG1 was identified as an interactive protein of VPS33B. In addition, NESG1 was found to exhibit mutual stimulation with VPS33B via reduced RAS/ERK/c-Jun-mediated transcription repression. Knockdown of NESG1 activated EGFR/Ras/ERK/c-Myc signaling and further downregulated p53 expression, which thus activated EMT signaling and promoted LUAD migration and invasion. Finally, we observed that nicotine suppressed VPS33B expressi...
Source: Genes and Diseases - Category: Genetics & Stem Cells Source Type: research

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Publication date: Available online 8 January 2020Source: Genes &DiseasesAuthor(s): Zhen Liu, Jiahao Liu, Yang Li, Hao Wang, Zixi Liang, Xiaojie Deng, Qiaofen Fu, Weiyi Fang, Ping XuAbstractThe presence of VPS33B in tumors has rarely been reported. Downregulated VPS33B protein expression is an unfavorable factor that promotes the pathogenesis of lung adenocarcinoma (LUAD). Overexpressed VPS33B was shown to reduce the migration, invasion, metastasis, and chemoresistance of LUAD cells to cisplatin (DDP) in vivo and in vitro. Mechanistic analyses have indicated that VPS33B first suppresses epidermal growth factor...
Source: Genes and Diseases - Category: Genetics & Stem Cells Source Type: research
ConclusionThese results suggest that ACTL8 serves an oncogenic role in human LUAD cells, and that ACTL8 may represent a potential therapeutic target for LUAD.Key pointsOur results suggest that ACTL8 serves an oncogenic role in human LUAD cells, and that ACTL8 may represent a potential therapeutic target for LUAD.
Source: Thoracic Cancer - Category: Cancer & Oncology Authors: Tags: ORIGINAL ARTICLE Source Type: research
Contributors : Hauke Busch ; Melanie Boerries ; Ursula Klingm üller ; Evgeny Gladilin ; Kai Breuhahn ; Ruth Merkle ; Dmytro DvornikovSeries Type : Expression profiling by arrayOrganism : Homo sapiensImportance of growth factor (GF) signaling in cancer progression is widely acknowledged. Transforming growth factor beta (TGF β) and and hepa- tocyte growth factor (HGF) are known to play a key role in epithelial-to- mesenchymal transition (EMT) and metastatic cell transformation that are characterized by distinctive alterations in cell mechanical architecture and behavior towards a more robust and motile single cell ...
Source: GEO: Gene Expression Omnibus - Category: Genetics & Stem Cells Tags: Expression profiling by array Homo sapiens Source Type: research
Conclusions: Our results highlight the importance of a better characterization of cancer stem-like cells in ADENO and SQUAMO histotypes. This may suggest new differential approaches for prognostic and therapeutic purposes in patients with non-small-cell lung cancer.
Source: Frontiers in Oncology - Category: Cancer & Oncology Source Type: research
aacute;lez-Noya AM, Pedrido R Abstract A series of phosphino-thiosemicarbazone gold(I) dinuclear complexes obtained by two different synthetic procedures have been prepared. All the compounds have been spectroscopically characterized including single crystal X ray diffraction analysis in some of cases. [Au2(HL1)Cl2] (1), [Au2(HL2)2]Cl2 (2) and [Au2(HL3)2]Cl2 (3) have been prepared by chemical synthesis using a gold(III) salt as precursor; while [Au2(L1)2] (4), [Au2(L2)2]∙2CH3CN (5) and [Au2(L3)2] (6) have been isolated from an electrochemical synthesis (HLn = 2-[2-(diphenylphosphanyl)-benzylidene]-N-R-thiose...
Source: Journal of Inorganic Biochemistry - Category: Biochemistry Authors: Tags: J Inorg Biochem Source Type: research
Conclusions: Our study elucidate the prognostic impact of tissue AXL expression and the presence of CTCs after surgery in adenocarcinoma patients. Tissue AXL expression and CTC EMT activation could potentially represent biomarkers for the stratification of ADC patients that might benefit from new adjuvant therapies.
Source: Cancers - Category: Cancer & Oncology Authors: Tags: Article Source Type: research
Cancers, Vol. 11, Pages 1411: Programmed Death–Ligand 1 and Vimentin: A Tandem Marker as Prognostic Factor in NSCLC Cancers doi: 10.3390/cancers11101411 Authors: Julien Ancel Philippe Birembaut Maxime Dewolf Anne Durlach Béatrice Nawrocki-Raby Véronique Dalstein Gonzague Delepine Silvia Blacher Gaëtan Deslée Christine Gilles Myriam Polette In non-metastatic non-small-cell lung cancer (NSCLC), outcomes remain poor. Adjuvant chemotherapies provide a limited improvement in disease-free survival. Recent exploratory studies on early-stage NSCLC show that immunotherapy ...
Source: Cancers - Category: Cancer & Oncology Authors: Tags: Article Source Type: research
Abstract Lung cancer, similar to other chronic diseases, occurs due to perturbations in multiple signaling pathways. Mono-targeted therapies are not ideal since they are not likely to be effective for the treatment and prevention of lung cancer, and are often associated with drug resistance. Therefore, the development of multi-targeted agents is required for novel lung cancer therapies. Thioredoxin reductase (TrxR or TXNRD1) is a pivotal component of the thioredoxin (Trx) system. Various types of tumor cells are able to overexpress TrxR/Trx proteins in order to maintain tumor survival, and this overexpression has ...
Source: Biochemical Pharmacology - Category: Drugs & Pharmacology Authors: Tags: Biochem Pharmacol Source Type: research
Abstract Myoferlin, a protein of the ferlin family, has seven C2 domains and exhibits activity in some cells, including myoblasts and endothelial cells. Recently, myoferlin was identified as a promising target and biomarker in non-small-cell lung cancer, breast cancer, pancreatic adenocarcinoma, hepatocellular carcinoma, colon cancer, melanoma, oropharyngeal squamous cell carcinoma, head and neck squamous cell carcinoma, clear cell renal cell carcinoma and endometrioid carcinoma. This evidence indicated that myoferlin was involved in the proliferation, invasion and migration of tumour cells, the mechanism of which...
Source: J Cell Mol Med - Category: Molecular Biology Authors: Tags: J Cell Mol Med Source Type: research
In this study, we found that NCBP1 was significantly overexpressed in lung cancer tissues and several lung cancer cell lines. Through knockdown and overexpression experiments, we showed that NCBP1 promoted lung cancer cell growth, wound healing ability, migration and epithelial-mesenchymal transition. Mechanistically, we found that cullin 4B (CUL4B) was a downstream target gene of NCBP1 in NSCLC. NCBP1 up-regulated CUL4B expression via interaction with nuclear cap-binding protein 3 (NCBP3). CUL4B silencing significantly reversed NCBP1-induced tumorigenesis in vitro. Based on these findings, we propose a model involving the...
Source: J Cell Mol Med - Category: Molecular Biology Authors: Tags: J Cell Mol Med Source Type: research
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