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| Registros recuperados: 25 | |
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| Maillet, A; Congy Jolivet, N; Le Guellec, S; Vecellio, L; Hamard, S; Courty, Y; Courtois, Anthony; Gauthier, F; Diot, P; Thibault, G; Lemarie, E; Heuze Vourc' H, N. |
| Purpose. Despite an increasing interest in the use of inhalation for local delivery of molecules for respiratory diseases and systemic disorders, methods to deliver therapy through air-ways has received little attention for lung cancer treatment. However, inhalation of anticancer drugs is an attractive alternative route to systemic administration which results in limited concentration of the medication in the lungs, and triggers whole-body toxicity. In this study, we investigated the feasibility of nebulization for therapeutic antibodies, a new class of fully-approved anticancer drugs in oncology medicine. Materials and methods. Cetuximab, a chimeric IgG1 targeting the epidermal growth factor receptor (EGER), was nebulized using three types of delivery... |
| Tipo: Text |
Palavras-chave: Nebulizer; Lung cancer; Cetuximab; Anticancer antibody; Aggregation; Aerosol. |
| Ano: 2008 |
URL: http://archimer.ifremer.fr/doc/2008/publication-4201.pdf |
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| Moreira,J.N.; Gaspar,R.. |
| The aim of the present study was to characterize the interactions of antagonist G (H-Arg-D-Trp-NmePhe-D-Trp-Leu-Met-NH 2)-targeted sterically stabilized liposomes with the human variant small cell lung cancer (SCLC) H82 cell line and to evaluate the antiproliferative activity of encapsulated doxorubicin against this cell line. Variant SCLC tumors are known to be more resistant to chemotherapy than classic SCLC tumors. The cellular association of antagonist G-targeted (radiolabeled) liposomes was 20-30-fold higher than that of non-targeted liposomes. Our data suggest that a maximum of 12,000 antagonist G-targeted liposomes were internalized/cell during 1-h incubation at 37ºC. Confocal microscopy experiments using pyranine-containing liposomes further... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Pegylated liposomes; Doxorubicin; Targeting; Antagonist G; Lung cancer. |
| Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2004000800008 |
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| Adonis,Marta I; Díaz,Jose; Miranda,Veronica R; Chahuan,Marco; Zambrano,Alcides; Benitez,Hugo C; Campos,Monica; Avaria,Pablo; Urzúa,Ulises; Marín,Pedro; Gohurdett,Mariela; Cisterna,Yasna; Gil,Lionel. |
| BACKGROUND: The mortality of lung cancer (LC), increases each year in the world, in spite of any advances, in development of new drugs to advance stages of LC. The high incidence of LC has been associated with smoking habit, genetic diversity and environmental pollution. Antofagasta region has been reported to have the highest LC mortality rate in Chile and its inhabitants were exposed to arsenic in their drinking water in concentrations as high as 870 μg/L. Non-invasive techniques such as biomarkers (Automatic Quantitative Cytometry: AQC and DR70) and Auto Fluorescence Bronchoscopy (AFB) might be potentially useful as a supplementary diagnostic approach and early detection. Early detection is one of the most important factors to intervene and... |
| Tipo: Journal article |
Palavras-chave: Early detection; Biomarkers; Lung cancer. |
| Ano: 2014 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602014000100056 |
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| Colombo,N.B.R.; Rangel,M.P.; Martins,V.; Hage,M.; Gelain,D.P.; Barbeiro,D.F.; Grisolia,C.K.; Parra,E.R.; Capelozzi,V.L.. |
| The antioxidant effects of Caryocar brasiliense Camb, commonly known as the pequi fruit, have not been evaluated to determine their protective effects against oxidative damage in lung carcinogenesis. In the present study, we evaluated the role of pequi fruit against urethane-induced DNA damage and oxidative stress in forty 8-12 week old male BALB/C mice. An in vivo comet assay was performed to assess DNA damage in lung tissues and changes in lipid peroxidation and redox cycle antioxidants were monitored for oxidative stress. Prior supplementation with pequi oil or its extract (15 µL, 60 days) significantly reduced urethane-induced oxidative stress. A protective effect against DNA damage was associated with the modulation of lipid peroxidation and low... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Pequi; Caryocar brasiliense Camb; Oxidative stress; Lung cancer; Urethane; Molecular biology. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2015000900852 |
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| Shen,Bo; Zhu,Qun; Zheng,Ma-Qing; Chen,Jia; Shi,Mei-Qi; Feng,Ji-Feng. |
| Polymorphisms in the nicotinic acetylcholine receptor subunit CHRNA5 gene have been associated with lung cancer positive susceptibility in European and American populations. In the present hospital-based, case-control study, we determined whether polymorphism in rs503464 of CHRNA5 is associated with lung cancer risk in Chinese individuals. A single nucleotide polymorphism in CHRNA5 rs503464, c.-166T>A (hereafter T>A), was identified using TaqMan-MGB probes with sequencing via PCR in 600 lung cancer cases and 600 healthy individuals. Genotype frequencies for rs503464 (T>A) were in Hardy-Weinberg equilibrium for the control population. However, genotype frequencies were significantly different between cases and controls (P < 0.05), while allele... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lung cancer; Nicotinic acetylcholine receptors; CHRNA5 gene; Single nucleotide polymorphisms. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2013000100079 |
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| Elkady,Ayman I.. |
| There is an urgent need to improve the clinical management of non-small cell lung cancer (NSCLC), one of the most frequent causes of cancer-related deaths in men and women worldwide. Rhazya stricta, an important medicinal plant used in traditional Oriental medicine, possesses anti-oxidant, anti-carcinogenic and free radical scavenging properties. This study was done to explore the potential anticancer activity of a crude alkaloid extract of R. stricta (CAERS) against the NSCLC line A549. CAERS markedly suppressed the growth of A549 cells and considerably enhanced the anti-proliferative potential of cisplatin. CAERS-mediated inhibition of A549 cell growth correlated with the induction of apoptosis that was accompanied by numerous morphological changes, DNA... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Apoptosis; Lung cancer; Medicinal plant; RT-PCR; Western blot. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572013000100003 |
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| SCHNEIDER,MARCIA R.; SILVA,ANDRÉA L.G. DA; GOULART,CÁSSIA L.; SCHNEIDERS,PALOMA B.; WEBER,AUGUSTO F.; POSSUELO,LIA G.; VALIM,ANDREIA R.M.. |
| Abstract: This study evaluated 24 patients with lung cancer (CA) and 23 individuals with no smoking history or cancer in the family and without respiratory disease in childhood (CO). Peripheral blood lymphocytes was used to perform alkaline comet assay and to assess DNA damage as well as to evaluate methyl methane sulfonate (MMS) DNA repair after one hour and three hours at 37 ºC. The percentage of residual damage (RD) after three hours of MMS treatment, for each patient was assessed. The majority of patients were in the CA group, male patients, former smokers, with a history of smoking for 15 years and without associated comorbidities. Alkaline and residual damages were higher in the CA group when compared to controls (alkaline damage P = 0.015 and RD P =... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Comet assay; DNA damage; DNA repair; Lung cancer. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652019000500806 |
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| Rangel,M.P.; Antonangelo,L.; Acencio,M.M.P.; Faria,C.S.; de Sá,V.K.; Leão,P.S.; Farhat,C.; Fabro,A.T.; Longatto Filho,A.; Reis,R.M.; Takagaki,T.; Capelozzi,V.L.. |
| Cofilin-1 (CFL1), a small protein of 18 kDa, has been studied as a biomarker due to its involvement in tumor cell migration and invasion. Our aim was to evaluate CFL1 as an indicator of malignancy and aggressiveness in sputum samples. CFL1 was analyzed by ELISA immunoassay in the sputum of 73 lung cancer patients, 13 cancer-free patients, and 6 healthy volunteers. Statistical analyses included ANOVA, ROC curves, Spearman correlation, and logistic regression. Sputum CFL1 levels were increased in cancer patients compared to cancer-free patients and volunteers (P<0.05). High expression of sputum CFL1 was correlated to T4 stage (P=0.01) and N stage (P=0.03), tobacco history (P=0.01), and squamous cell carcinoma histologic type (P=0.04). The accuracy of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lung cancer; Cofilin-1; Sputum; Liquid-biopsy; Metastases; Biomarker. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2018000800603 |
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| Brihoum,Hadjer; Maiza,Mhamed; Sahali,Hafida; Boulmeltout,Malika; Barratt,Gillian; Benguedouar,Lamia; Lahouel,Mesbah. |
| Abstract The purpose of our study was to divulge the antiproliferative effect of an ethanolic extract of Algerian propolis (EEP) in the human lung adenocarcinoma cell line (A549) and reveal the chemopreventive role against benzo(a)pyrene-induced lung carcinogenesis in albino Wistar rats. Cytotoxicity of EEP was evaluated using the MTT assay and cell adhesion in A549 cells. Moreover, rats were given 25 mg/kg of propolis for 5 days before induction of experimental lung cancer by a single intraperitoneal dose of 200 mg/kg benzo(a)pyrene. Body weight, lung weight, lipid peroxidation, marker enzymes, and enzymatic and non-enzymatic antioxidants were estimated. The EEP demonstrated an inhibitory effect on proliferation of A549 at 24 and 72 hours in a... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Algerian propolis/effects; Benzo(a)pyrene; Chemoprevention; Lung cancer; Oxidative stress.. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502018000100616 |
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| Cao,Chengsong; Liu,Yong; Wang,Qun; Zhao,Jing; Shi,Ming; Zheng,Junnian. |
| Lung cancer is the most common malignancy worldwide and is characterized by rapid progression, aggressive behavior, frequent recurrence, and poor prognosis. The TCGA database indicates that chondroitin polymerizing factor (CHPF) is overexpressed in human lung cancer tissues compared with normal tissues and this overexpression corresponds to shorter overall survival in lung cancer patients. In this study, to investigate the function of CHPF in lung cancer, lentiviral vectors expressing CHPF shRNA were stably transduced into A549 and H1299 cells. Compared to shCtrl cells, CHPF knockdown cells had significantly reduced proliferation. Furthermore, the silencing of CHPF in A549 and H1299 cells resulted in apoptotic induction, which led to decreased colony... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: CHPF; Lung cancer; Proliferation; Invasion; TCGA; Affymetrix Gene Chip. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2020000500610 |
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| Sá,V.K. de; Rocha,T.P.; Moreira,AL.; Soares,F.A.; Takagaki,T.; Carvalho,L.; Nicholson,A.G.; Capelozzi,V.L.. |
| We collected a series of 136 lung/bronchial and 56 matched lung parenchyma tissue samples from patients who underwent lung/bronchial biopsies and presented invasive carcinoma after lung surgery. The lung/bronchial samples included basal cell hyperplasia, squamous metaplasia, moderate dysplasia, adenomatous hyperplasia, severe dysplasia, squamous cell carcinoma and adenocarcinoma. Matched lung parenchyma tissue samples included 25 squamous cell carcinomas and 31 adenocarcinomas. Immunohistochemistry was performed to analyze for the distribution of hyaluronidase (Hyal)-1 and −3, and hyaluronan synthases (HAS)-1, −2, and −3. Hyal-1 showed significantly higher expression in basal cell hyperplasia than in moderate dysplasia (P=0.01), atypical adenomatous... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Hyaluronidases and hyaluronan synthases; Lung cancer; Pre-neoplastic lung/bronchial lesions; Immunohistochemistry; Morphometry; Prognosis. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2015001101039 |
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| Ljujic,Mila; Topic,Aleksandra; Nikolic,Aleksandra; Divac,Aleksandra; Grujic,Milan; Mitic-Milikic,Marija; Radojkovic,Dragica. |
| The alpha-1-antitrypsin (A1AT) gene is highly polymorphic, with more than 100 genetic variants identified of which some can affect A1AT protein concentration and/or function and lead to pulmonary and/or liver disease. This study reports on the characterization of a p.G320R variant found in two patients, one with emphysema and the other with lung cancer. This variant results from a single base-pair substitution in exon 4 of the A1AT gene, and has been characterized as P by isoelectric focusing. Functional evaluation of the A1AT p.G320R variant was through comparing specific trypsin inhibitory activity in two patients with pulmonary disorders, carriers of the p.G320R variant, and 19 healthy individuals, carriers of normal A1AT M variants. Results showed that... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Alpha-1-antitrypsin; Emphysema; Lung cancer; P variant; Specific trypsin inhibitory activity. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572010000100002 |
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| Chen,Yong; Shi,Jian-Xin; Pan,Xu-Feng; Feng,Jian; Zhao,Heng. |
| Over the past three decades, mortality from lung cancer has sharply and continuously increased in China, ascending to the first cause of death among all types of cancer. The ability to identify the actual sequence of gene mutations may help doctors determine which mutations lead to precancerous lesions and which produce invasive carcinomas, especially using next-generation sequencing (NGS) technology. In this study, we analyzed the latest lung cancer data in the COSMIC database, in order to find genomic "hotspots" that are frequently mutated in human lung cancer genomes. The results revealed that the most frequently mutated lung cancer genes are EGFR, KRAS and TP53.In recent years, EGFR and KRAS lung cancer test kits have been utilized for detecting lung... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lung cancer; Next-generation sequencing; Somatic mutation kit; COSMIC. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572013000300022 |
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| Gorgisen,Gokhan; Hapil,Fatma Zehra; Yilmaz,Ozlem; Cetin,Zafer; Pehlivanoglu,Suray; Ozbudak,Irem Hicran; Erdogan,Abdullah; Ozes,Osman Nidai. |
| Abstract Lung cancer is the leading cause of cancer-related death, and NSCLC constitutes nearly 85%–90% of all cases. The IRS proteins function as adaptors and transmit signals from multiple receptors. Upon binding of insulin to the insulin receptor (IR), IRS1 is phosphorylated at several YXXM motifs creating docking sites for the binding of PI3Kp85, which activates AKT kinase. Therefore, we thought that gain of function mutantions of IRS1 could be related to development of lung cancer. In line with this, we wanted determine whether the IRS1 gene was mutated in the coding regions surrounding YXXM motifs. We sequenced the coding regions surrounding YXXM motifs of IRS1 using tumor samples of 42 NSCLC patients and 40 matching controls and found heterozygote... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: IRS1; NSCLC; Insulin signaling; Lung cancer; IRS proteins. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572019000100015 |
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| Massoni Neto,L.M.; Bianchi,C.P.; Ab'Saber,A.M.; Parra,E.R.; Takagaki,T.; Pereira,J.C.; Soares,F.A.; Leite,K.; Capelozzi,V.L.. |
| Malignancy of pulmonary large cell carcinomas (LCC) increases from classic LCC through LCC with neuroendocrine morphology (LCCNM) to large cell neuroendocrine carcinomas (LCNEC). However, the histological classification has sometimes proved to be difficult. Because the malignancy of LCC is highly dependent on proteins with functions in the cell cycle, DNA repair, and apoptosis, p53 has been targeted as a potentially useful biological marker. p53 mutations in lung cancers have been shown to result in expression and protein expression also occurs in the absence of mutations. To validate the importance of both p53 protein expression (by immunostaining) and p53 gene mutations in lung LCC (by PCR-single strand conformational polymorphism analysis of exons 5, 6,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Large cell carcinoma; P53; Genetics; Molecular biology; Lung cancer; Mutation analysis. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2007000800004 |
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| Pérez-Morales,Rebeca; Méndez-Ramírez,Ignacio; Castro-Hernández,Clementina; Martínez-Ramírez,Ollin C.; Gonsebatt,María Eugenia; Rubio,Julieta. |
| Lung cancer is the leading cause of cancer mortality in Mexico and worldwide. In the past decade, there has been an increase in the number of lung cancer cases in young people, which suggests an important role for genetic background in the etiology of this disease. In this study, we genetically characterized 16 polymorphisms in 12 low penetrance genes (AhR, CYP1A1, CYP2E1, EPHX1, GSTM1, GSTT1, GSTPI, XRCC1, ERCC2, MGMT, CCND1 and TP53) in 382 healthy Mexican Mestizos as the first step in elucidating the genetic structure of this population and identifying high risk individuals. All of the genotypes analyzed were in Hardy-Weinberg equilibrium, but different degrees of linkage were observed for polymorphisms in the CYP1A1 and EPHX1 genes. The genetic... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Additive model; Genetic polymorphism; Lung cancer; Mexicans; Molecular epidemiology. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572011000400003 |
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| Registros recuperados: 25 | |
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