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1.
Appl. cancer res ; 40(4): [1-12], 01 june 2020. ilus, tab
Article in English | LILACS (Americas) | ID: biblio-1103878

ABSTRACT

Background: Next-generation sequencing (NGS) based assay for finding an actionable driver in non-small-cell lung cancer is a less used modality in clinical practice. With a long list of actionable targets, limited tissue, arduous single-gene assays, the alternative of NGS for broad testing in one experiment looks attractive. We report here our experience with NGS for biomarker testing in hundred advanced lung cancer patients. Methods: Predictive biomarker testing was performed using the Ion AmpliSeq™ Cancer Hotspot Panel V2 (30 tumors) and Oncomine™ Solid Tumor DNA and Oncomine™ Solid Tumor Fusion Transcript kit (70 tumors) on IonTorrent sequencing platform. Results: One-seventeen distinct aberrations were detected across 29 genes in eighty-six tumors. The most commonly mutated genes were TP53 (43% cases), EGFR (23% cases) and KRAS (17% cases). Thirty-four patients presented an actionable genetic variant for which targeted therapy is presently available, and fifty-two cases harbored non-actionable variants with the possibility of recruitment in clinical trials. NGS results were validated by individual tests for detecting EGFR mutation, ALK1 rearrangement, ROS1 fusion, and c-MET amplification. Compared to single test, NGS exhibited good agreement for detecting EGFR mutations and ALK1 fusion (sensitivity- 88.89%, specificity- 100%, Kappa-score 0.92 and sensitivity- 80%, specificity- 100%, Kappa-score 0.88; respectively). Further, the response of patients harboring tyrosine kinase inhibitor (TKI) sensitizing EGFR mutations was assessed. The progression-free-survival of EGFR positive patients on TKI therapy, harboring a concomitant mutation in PIK3CAmTOR and/or RAS-RAF-MAPK pathway gene and/or TP53 gene was inferior to those with sole-sensitizing EGFR mutation (2 months vs. 9.5 months, P = 0.015). Conclusions: This is the first study from South Asia looking into the analytical validity of NGS and describing the mutational landscape of lung cancer patients to study the impact of co-mutations on cancer biology and treatment outcome. Our study demonstrates the clinical utility of NGS testing for identifying actionable variants and making treatment decisions in advanced lung cancer


Subject(s)
Humans , Male , Female , Biomarkers, Tumor , High-Throughput Nucleotide Sequencing , Lung Neoplasms , Mutation
2.
Int. j. morphol ; 38(2): 247-251, abr. 2020. tab, graf
Article in English | LILACS (Americas) | ID: biblio-1056430

ABSTRACT

Nine tumor and various potential biomarkers were measured and combined the information to diagnose disease, all patients accepted fiber bronchoscopy brush liquid based cytologyand histopathology examination in order to reliably detect lung cancer. The samples from 314 Chinese lung cancer patients were obtained and CK5/6, P63, P40, CK7, TTF-1, NapsinA CD56, Syn and CgA were measured with the immunohistochemical SP method and analyzed correlation of the expression of these markers with pathological and clinical features of squamous cell carcinoma, adenocarcinoma, and small cell lung carcinoma. Squamous cell carcinoma, adenocarcinoma and small cell carcinoma were 61 cases, 114 cases and 139 cases,CK5/6 and P63 expression were more frequent in squamous cell carcinoma, with sensitivity and specificity of 77.05 % and 96.44 %, 83.61 % and 88.93 %,and compared with adenocarcinoma and small cell carcinoma difference was statistically significant (P<0.05), The incidences of a positive P40 expression were 100 % in squamous cell carcinoma, with specificity of 98.81 %.CK7, TTF-1 and NapsinA expression were more frequent in adenocarcinoma, with sensitivity and specificity of 85.09 % and 78.69 %, 79.82 % and 93.44 %, 56.14 % and 95.08 %, and compared with squamous cell carcinoma and small cell carcinoma difference was statistically significant (P<0.05). TTF-1, Syn, CgA and CD56 expression were more frequent in adenocarcinoma, with sensitivity and specificity of 86.33 % and 93.44 %, 89.21 % and 98.36 %, 74.10 % and 100 %, 96.40 % and 96.72 %. The combined detection of CK5/6, P63 and P40 were more useful and specific in differentiating squamous cell carcinoma. CK7, TTF-1 and NapsinA were more useful and specific in differentiating lung adenocarcinoma. The impaired CD56, TTF-1, Syn and CgA reflects the progression of small cell lung cancer.


Se midieron tumores y utilizaron nueve biomarcadores potenciales y se analizó la información para diagnosticar la enfermedad. A todos los pacientes se les realizó citología en líquido con broncoscopía de fibra y examen histopatológico para detectar de manera confiable el cáncer pulmonar. Se obtuvieron muestras de 314 pacientes chinos con cáncer de pulmón y CK5 / 6, P63, P40, CK7, TTF-1, Napsina A, CD56, Syn y CgA se midieron a través de histoquímica SP y analizaron la correlación de la expresión de estos marcadores con características patológicas y clínicas de carcinoma de células escamosas, adenocarcinoma y carcinoma de células pequeñas en el cáncer de pulmón. El carcinoma de células escamosas, el adenocarcinoma y el carcinoma de células pequeñas fueron 61 casos, 114 casos y 139 casos, respectivamente, la expresión de CK5 / 6 y P63 fueron más frecuentes en el carcinoma de células escamosas, con una sensibilidad y especificidad del 77,05 % y 96,44 %, 83,61 % y 88,93 %, y en comparación con el adenocarcinoma y el carcinoma de células pequeñas, la diferencia fue estadísticamente significativa (P <0,05). La incidencia de ap la expresión positiva P40 fue del 100 % en el carcinoma de células escamosas, con una especificidad del 98,81 %. La expresión de CK7, TTF-1 y NapsinA fueron más frecuentes en el adenocarcinoma, con una sensibilidad y especificidad del 85,09 % y 78,69 %, 79,82 % y 93,44 %, 56,14 % y 95,08 %, y en comparación con el carcinoma de células escamosas y la diferencia de carcinoma de células pequeñas fue estadísticamente significativa (P <0,05) .TTF-1, Syn, CgA y la expresión de CD56 fueron más frecuentes en adenocarcinoma, con sensibilidad y especificidad de 86.33 % y 93.44 %, 89.21 % y 98.36 %, 74.10 % y 100 %, 96.40 % y 96.72 %. La detección combinada de CK5 / 6, P63 y P40 fue más útil y específica en la diferenciación del carcinoma de células escamosas. CK7, TTF-1 y NapsinA fueron más útiles y específicos para diferenciar el adenocarcinoma de pulmón. El deterioro de CD56, TTF-1, Syn y CgA refleja la progresión del cáncer de pulmón de células pequeñas.


Subject(s)
Humans , Carcinoma/metabolism , Carcinoma/pathology , Lung Neoplasms/metabolism , Lung Neoplasms/pathology , Peptide Fragments/metabolism , Transcription Factors/metabolism , Immunohistochemistry , Carcinoma, Squamous Cell/metabolism , Carcinoma, Squamous Cell/pathology , Adenocarcinoma/metabolism , Adenocarcinoma/pathology , Biomarkers, Tumor/metabolism , Aspartic Acid Endopeptidases/metabolism , Sensitivity and Specificity , Carcinoma, Small Cell/metabolism , Carcinoma, Small Cell/pathology , CD56 Antigen/metabolism , Tumor Suppressor Proteins/metabolism , Keratins, Type II/metabolism , Keratin-7/metabolism , Thyroid Nuclear Factor 1/metabolism
3.
Yonsei Medical Journal ; : 210-217, 2020.
Article in English | WPRIM (Western Pacific) | ID: wprim-811475

ABSTRACT

PURPOSE: The goal of this study was to explore the effects of hsa-let-7g on cell proliferation and apoptosis, and elucidate its role in lung cancer development.MATERIALS AND METHODS: The expression levels of has-let-7g and HOXB1 in tissues and cells were measured by qRT-PCR. An inhibitor of hsa-let-7g or one targeting a control messenger RNA were transfected into A549 and H1944 lung cancer cells, and the effects of hsa-let-7g dysregulation on cell viability and apoptosis were analyzed using CCK-8 and apoptosis detection assays. HOXB1 was confirmed as the target gene of hsa-let-7g, based on luciferase reporter assay results. The relationship between hsa-let-7g and HOXB1 was confirmed by co-transfection of inhibitors of hsa-let-7g and HOXB1 followed by Western blot, CCK-8, and apoptosis detection assays.RESULTS: We observed high expression of hsa-let-7g in lung cancer tissues compared to the corresponding normal tissues, and generally higher expression of hsa-let-7g in patients with advanced tumor classification. The results of CCK-8 and apoptosis detection experiments showed that the inhibition of hsa-let-7g significantly inhibited proliferation of A549 and H1944 cells, but also promoted apoptosis. HOXB1 is a specific target of hsa-let-7g, and downregulation of HOXB1 in lung cancer cells reversed the suppressive effects caused by knocking down hsa-let-7g.CONCLUSION: These data collectively suggest that the expression of hsa-let-7g inhibits lung cancer cells apoptosis and promotes proliferation by down-regulating HOXB1. The results from this study demonstrate the potential of hsa-let-7g/HOXB1 axis as a therapeutic target for the treatment of lung cancer.


Subject(s)
Apoptosis , Blotting, Western , Cell Proliferation , Cell Survival , Classification , Down-Regulation , Humans , Luciferases , Lung Neoplasms , Lung , MicroRNAs , RNA, Messenger , Sincalide
4.
Article in Korean | WPRIM (Western Pacific) | ID: wprim-811292

ABSTRACT

E-cigarettes (ECs) and heated tobacco products (HTPs) have become popular in Korea; hence, it is important to determine whether ECs and HTPs are less hazardous than combustible cigarettes (CCs). In general, the levels of harmful and potentially harmful constituents (HPHCs) are lower in ECs and HTPs than in CCs, although the levels of some heavy metals and HPHCs are higher in ECs and HTPs than in CCs. ECs and HTPs showed possible adverse effects on respiratory and cardiovascular system function, which could result in chronic respiratory and cardiovascular system diseases in animals. An analysis of biomarkers showed that ECs had possible adverse health effects on the respiratory and cardiovascular systems, in addition the effects of HTP on respiratory and cardiovascular systems were not significantly different than those of CC. Epidemiological studies identified positive associations between EC use and asthma, chronic obstructive pulmonary disease, and myocardial infarction. Only one epidemiologic study reported a positive association between ever using HTPs and asthma, allergic rhinitis, and atopic dermatitis among adolescents. Modelling studies of ECs did not show consistent findings regarding the health effects compared with those of CCs. A modeling study of HTPs, performed by tobacco industry, has been criticized for many unfounded assumptions. Lower levels of HPHCs in ECs and HTPs, compared with those in CCs, cannot be directly translated into health benefits because the relationship between exposure and effects is non-linear for cardiovascular diseases and because the duration of exposure is more important than the level of exposure in determining lung cancer mortality. In summary, there is no definite health benefit in using ECs or HTPs instead of CCs, for the individual or the population; hence, tobacco control measures should be the same for ECs, HTPs, and CCs. ECs and HTPs have become popular in Korea; hence, it is important to determine whether ECs and HTPs are less hazardous than CCs.


Subject(s)
Adolescent , Animals , Asthma , Biomarkers , Cardiovascular Diseases , Cardiovascular System , Dermatitis, Atopic , Electronic Nicotine Delivery Systems , Epidemiologic Studies , Hot Temperature , Humans , Insurance Benefits , Korea , Lung Neoplasms , Metals, Heavy , Mortality , Myocardial Infarction , Pulmonary Disease, Chronic Obstructive , Rhinitis, Allergic , Smoking , Tobacco Industry , Tobacco Products , Tobacco
5.
Article in Korean | WPRIM (Western Pacific) | ID: wprim-811227

ABSTRACT

PURPOSE: This study aims to examine the effects of nursing interventions based on the Extended Theory of Planned Behavior (ETPB) regarding self-efficacy for exercise (SEE), physical activity (PA), physical function (PF), and quality of life (QOL) in patients with lung cancer who have undergone pulmonary resection.METHODS: This quasi-experimental study was conducted between July 2015 and June 2018 in two university-affiliated hospitals. The intervention included pre-operative patient education, goal setting (action and coping planning), and feedback (behavior intention and perceived behavioral control). The intervention group (IG) (n=51) received nursing interventions from the day before surgery to 12 months after lung resection, while the comparison group (CG) (n=36) received usual care. SEE, PA, PF (dyspnea, functional status, and 6-minute walking distance [6MWD]), and QOL were measured before surgery and at one, three, six, and 12 months after surgery. Data were analyzed using the χ² test, Fisher's exact test, Mann–Whitney U test, t-test, and generalized estimation equations (GEE).RESULTS: There were significant differences between the two groups regarding SEE (χ²=13.53, p=.009), PA (χ²=9.51, p=.049), functional status (χ²=10.55, p=.032), and 6MWD (χ²=15.62, p=.004). Although there were no time or group effects, the QOL mental component (Z=−2.78, p=.005) of the IG was higher than that of the CG one month after surgery. Interventions did not affect dyspnea or the QOL physical component.CONCLUSION: The intervention of this study was effective in improving SEE, PA, functional status, and 6MWD of lung cancer patients after lung resection. Further extended investigations that utilize ETPB are warranted to confirm these results.


Subject(s)
Dyspnea , Exercise , Humans , Intention , Lung Neoplasms , Lung , Motor Activity , Non-Randomized Controlled Trials as Topic , Nursing , Patient Education as Topic , Quality of Life , Self Efficacy , Walking
6.
Article in Korean | WPRIM (Western Pacific) | ID: wprim-782245

ABSTRACT

BACKGROUND: The aim of this study was to compare the efficiency of cytokeratin 19 fragment (CYFRA 21-1) and carcinoembryonic antigen (CEA) for the diagnosis of lung cancer and to establish the optimal cut-off values.METHODS: We retrospectively reviewed the medical records of 1,176 subjects with CYFRA 21-2 and CEA data; they were classified into 93 lung cancer cases and 1,083 total controls, including 146 age-matched controls. Multivariate analysis was used to determine the relationship between the concentration of each tumor marker and lung cancer diagnosis. The diagnostic efficiencies of tumor markers were evaluated using receiver operating characteristic curve analysis and areas under the curve (AUCs) were calculated. The optimal cut-offs for CYFRA 21-1 and CEA were also estimated.RESULTS: Age, CYFRA 21-1, and CEA concentrations were independently associated with lung cancer diagnosis. Diagnostic efficiency of each tumor marker and its' combination was different according to the histological types of lung cancer. For non-small cell lung cancer, the AUCs for the two-marker combination were the highest: 0.8661 and 0.7559 for total and age-matched controls, respectively. For squamous cell carcinoma, the AUCs for CYFRA 21-1 were the highest: 0.9245 and 0.8428 for total and age-matched controls, respectively. The sensitivity and specificity of CYFRA 21-1 and CEA for lung cancer diagnosis were improved when the cutoffs determined based on this study were applied.CONCLUSIONS: CYFRA 21-1 and CEA could be useful markers for diagnosing lung cancer and single or combination of markers may be useful according to different histological types of lung cancer.


Subject(s)
Area Under Curve , Biomarkers, Tumor , Carcinoembryonic Antigen , Carcinoma, Non-Small-Cell Lung , Carcinoma, Squamous Cell , Diagnosis , Keratin-19 , Lung Neoplasms , Lung , Medical Records , Multivariate Analysis , Retrospective Studies , ROC Curve , Sensitivity and Specificity
7.
Article in English | WPRIM (Western Pacific) | ID: wprim-782226

ABSTRACT

Lung cancer remains the most common cause of cancer-related deaths worldwide. Although there are many possible treatments, including targeted therapies such as epidermal growth factor receptor tyrosine kinase inhibitors and anaplastic lymphoma kinase inhibitors, new therapeutic strategies are needed to improve clinical outcomes. Immunotherapy through the use of immune checkpoint inhibitors has provided one of the most important breakthroughs in the management of solid tumors, including lung cancers, and has shown promising results in numerous clinical trials. This review will present the current status of immunotherapy for lung cancer and future perspectives on these treatments.


Subject(s)
Immunotherapy , Lung Neoplasms , Lung , Lymphoma , Phosphotransferases , Prognosis , Protein-Tyrosine Kinases , ErbB Receptors
8.
Article in English | WPRIM (Western Pacific) | ID: wprim-782221

ABSTRACT

BACKGROUND: Circulating tumor cells (CTCs) are frequently detected in patients with advanced-stage malignant tumors and could act as a predictor of poor prognosis. However, there is a paucity of data on the relationship between CTC number and primary tumor volume in patients with lung cancer. Therefore, our study aimed to evaluate the relationship between CTC number and primary tumor volume in patients with lung adenocarcinoma.METHODS: We collected blood samples from 21 patients with treatment-naive lung adenocarcinoma and 73 healthy individuals. To count CTCs, we used a CTC enrichment method based on fluid-assisted separation technology. We compared CTC numbers between lung adenocarcinoma patients and healthy individuals using propensity score matching, and performed linear regression analysis to analyze the relationship between CTC number and primary tumor volume in lung adenocarcinoma patients.RESULTS: CTC positivity was significantly more common in lung adenocarcinoma patients than in healthy individuals (p<0.001). The median primary tumor volume in CTC-negative and CTC-positive patients was 10.0 cm³ and 64.8 cm³, respectively. Multiple linear regression analysis showed that the number of CTCs correlated with primary tumor volume in lung adenocarcinoma patients (β=0.903, p=0.002). Further subgroup analysis showed a correlation between CTC number and primary tumor volume in patients with distant (p=0.024) and extra-thoracic (p=0.033) metastasis (not in patients with distant metastasis).CONCLUSION: Our study showed that CTC numbers may be associated with primary tumor volume in lung adenocarcinomas patients, especially in those with distant metastasis.


Subject(s)
Adenocarcinoma , Humans , Linear Models , Lung Neoplasms , Lung , Methods , Neoplasm Metastasis , Neoplastic Cells, Circulating , Prognosis , Propensity Score , Tumor Burden
9.
Article in English | WPRIM (Western Pacific) | ID: wprim-782115

ABSTRACT

According to reports presented at the Asian Radiology Forum 2017 in Taipei, the landscape of screening in Asia is growing, and the role of radiologists is also evolving. The Asian Radiology Forum was first held by the Korean Society of Radiology and the national delegates of Asian radiological partner societies, who attended this meeting with the aim of discussing selected subjects of global relevance in radiology. In 2017, current trends and policies concerning various cancer screening programs from each delegate country were discussed. Various screening programs were discussed, including liver screening in Thailand, thyroid cancer screening in Korea, and lung cancer screening data from the ongoing projects in Taiwan and Japan. The Asian Oceanian Society of Radiology could serve as a platform for international collaboration, and educational exchange between member societies was also highlighted in the forum. Most Asian radiology societies are looking forward to an expansion in the scale of international collaboration and for the provision of additional exchange programs in the future.


Subject(s)
Asia , Asian Continental Ancestry Group , Cooperative Behavior , Early Detection of Cancer , Humans , International Cooperation , Japan , Korea , Liver , Lung Neoplasms , Mass Screening , Oceania , Taiwan , Thailand , Thyroid Neoplasms
10.
Article in English | WPRIM (Western Pacific) | ID: wprim-782111

ABSTRACT

Ideally, radiomics features and radiomics signatures can be used as imaging biomarkers for diagnosis, staging, prognosis, and prediction of tumor response. Thus, the number of published radiomics studies is increasing exponentially, leading to a myriad of new radiomics-based evidence for lung cancer. Consequently, it is challenging for radiologists to keep up with the development of radiomics features and their clinical applications. In this article, we review the basics to advanced radiomics in lung cancer to guide young researchers who are eager to start exploring radiomics investigations. In addition, we also include technical issues of radiomics, because knowledge of the technical aspects of radiomics supports a well-informed interpretation of the use of radiomics in lung cancer.


Subject(s)
Biomarkers , Diagnosis , Lung Neoplasms , Lung , Prognosis
11.
Immune Network ; : 10-2020.
Article in English | WPRIM (Western Pacific) | ID: wprim-811172

ABSTRACT

Immune checkpoint inhibitors (ICIs) have shown remarkable benefit in the treatment of patients with non-small-cell lung cancer (NSCLC) and have emerged as an effective treatment option even in the first-line setting. ICIs can block inhibitory pathways that restrain the immune response against cancer, restoring and sustaining antitumor immunity. Currently, there are 4 PD-1/PD-L1 blocking agents available in clinics, and immunotherapy-based regimen alone or in combination with chemotherapy is now preferred option. Combination trials assessing combination of ICIs with chemotherapy, targeted therapy and other immunotherapy are ongoing. Controversies remain regarding the use of ICIs in targetable oncogene-addicted subpopulations, but their initial treatment recommendations remained unchanged, with specific tyrosine kinase inhibitors as the choice. For the majority of patients without targetable driver oncogenes, deciding between therapeutic options can be difficult due to lack of direct cross-comparison studies. There are continuous efforts to find predictive biomarkers to find those who respond better to ICIs. PD-L1 protein expressions by immunohistochemistry and tumor mutational burden have emerged as most well-validated biomarkers in multiple clinical trials. However, there still is a need to improve patient selection, and to establish the most effective concurrent or sequential combination therapies in different NSCLC clinical settings. In this review, we will introduce currently used ICIs in NSCLC and analyze most recent trials, and finally discuss how, when and for whom ICIs can be used to provide promising avenues for lung cancer treatment.


Subject(s)
Biomarkers , Carcinoma, Non-Small-Cell Lung , Drug Therapy , Humans , Immunohistochemistry , Immunotherapy , Lung Neoplasms , Oncogenes , Patient Selection , Protein-Tyrosine Kinases
13.
Rev. bras. cancerol ; 66(1)20200129.
Article in English | LILACS (Americas) | ID: biblio-1049323

ABSTRACT

Introduction: Three vanadium complexes with orotic and glutamic acids, in their anion forms, were prepared and their in vitro cytotoxicity toward human lung fibroblasts (MRC-5), human hepatocellular carcinoma (HepG2) and human colorectal adenocarcinoma (Caco-2) are reported. Objective: Describe the synthesis and characterization of new vanadium complexes with orotic and glutamic acids, and test its antitumor activity against HepG2 and Caco-2. Method: The complexes were formulated as VO (oro), VO (α-glu) and VO (γ-glu) based on chemical, thermogravimetric analyses and infrared spectra. Results: Resazurin assay demonstrates its cytotoxicity against the HepG2 and Caco-2 cell lines with the IC50 ranging from 7.90 to 44.56 µmol.L-1. The cytotoxicity profiles indicate that the tumoral lines show more activity than the cells MRC-5, with selectivity indexes ranging from 1.58 to 8.96. Conclusion: The three complexes had better in vitro activity than cisplatin for both normal and cancer cell lines. The IC50 values are two to six times better for the cancer cell ines and five to seven times better for the normal cell lines. This study indicates that the complexes obtained are promising candidates for antitumor drugs.


Introdução: Foram preparados três complexos de vanádio com ácidos orótico e glutâmico, em suas formas aniônicas, e foi testada sua citotoxicidade in vitro para fibroblastos pulmonares humanos (MRC-5), carcinoma hepatocelular humano (HepG2) e adenocarcinoma colorretal humano (Caco-2). Objetivo: Descrever a síntese e caracterização de novos complexos de vanádio com ácidos orótico e glutâmico e testar sua atividade antitumoral contra HepG2 e Caco-2. Método: Os complexos foram formulados como VO (oro), VO (α-glu) e VO (γ-glu) com base em análises químicas, termogravimétricas e espectros no infravermelho. Resultados: O ensaio de resazurina demonstrou sua citotoxicidade contra as linhagens celulares HepG2 e Caco-2 com o IC50 variando de 7,90 a 44,56 µmol.L-1. Os perfis de citotoxicidade indicam que as linhas tumorais apresentam maior atividade que as células MRC-5, com índices de seletividade variando de 1,58 a 8,96. Conclusão: Os três complexos tiveram melhor atividade in vitro do que a cisplatina, tanto para linhagens celulares normais como cancerosas. Os valores de IC50 são de duas a seis vezes melhores para as linhagens celulares cancerosas e de cinco a sete vezes melhores para as linhagens celulares normais. Este estudo indica que os complexos obtidos são promissores candidatos a fármacos antitumorais.


Introducción: Tres complejos de vanadio con ácidos orótico y glutámico, en sus formas aniónicas, fueram preparados. Su citotoxicidad in vitro hacia los fibroblastos pulmonares humanos (MRC-5), el carcinoma hepatocelular humano (HepG2) y el adenocarcinoma colorrectal humano (Caco-2) son reportados. Objetivo: Los principales objetivos de este trabajo son describir la síntesis y caracterización de nuevos complejos de vanadio con ácidos orótico y glutámico y probar su actividad antitumoral contra el HepG2 y el Caco-2. Método: Los complejos fueron formulados como VO (oro), VO (α-glu) y VO (γ-glu) basados en análisis químicos, termogravimétricos y espectros infrarrojos. El ensayo de resazurina demuestra su citotoxicidad contra las líneas celulares HepG2 y Caco-2 con el IC50 que van de 7,90 a 44,56 µmol.L-1. Los perfiles de citotoxicidad indican que las líneas tumorales presentan mayor actividad que los MRC-5, con índices de selectividad que van de 1,58 a 8,96. Conclusión: Los tres complejos tuvieron mejor actividad in vitro que el cisplatino, tanto para líneas celulares normales como para líneas celulares cancerosas. Los valores del IC50 son de dos a seis veces mejores para las líneas celulares de cáncer y de cinco a siete veces mejores para las líneas celulares normales. Este estudio indica que los complejos obtenidos son candidatos prometedores para fármacos antitumorales.


Subject(s)
Humans , Orotic Acid/pharmacology , Vanadium Compounds/pharmacology , Glutamic Acid/pharmacology , Cell Line, Tumor/drug effects , In Vitro Techniques , Drug Screening Assays, Antitumor , Colorectal Neoplasms/drug therapy , Adenocarcinoma/drug therapy , Carcinoma, Hepatocellular/drug therapy , Cancer-Associated Fibroblasts/drug effects , Lung Neoplasms/drug therapy , Antineoplastic Agents/pharmacology
14.
Article in English | WPRIM (Western Pacific) | ID: wprim-812980

ABSTRACT

Lung adenocarcinoma is a malignant tumor that is prone to distant metastasis. Common metastatic sites are brain, adrenal gland, liver, bone, and so on. Skin soft tissue metastasis is unusual, and breast metastasis is even rarer. This case is a middle-aged female patient who had experienced multi-line treatments for upper limbs, abdominal skin, and bilateral breast tissue metastases.The patient's multiple metastases were susceptible to radiation therapy.Reviewing the entire treatment process of this patient can find that the rational use of individualized comprehensive treatment methods and appropriate timing of genetic testing are very important for patients with lung adenocarcinoma to prolong their survival time and improve their quality of life.


Subject(s)
Adenocarcinoma of Lung , Breast Neoplasms , Female , Humans , Lung Neoplasms , Middle Aged , Quality of Life
15.
Rev. colomb. cancerol ; 23(4): 135-143, Oct-Dic. 2019. tab
Article in Spanish | LILACS (Americas) | ID: biblio-1058357

ABSTRACT

Resumen Objetivo: estimar la carga de enfermedad asociada al consumo de tabaco en Colombia y evaluar el potencial efecto sanitario y económico del aumento de precio en los cigarrillos mediante impuestos. Materiales y métodos: se diseñó un modelo de simulación de Monte Cario de primer orden que incorporó la historia natural, los costos y la calidad de vida de enfermedades relacionadas con el consumo de tabaco en adultos. Se estimó el impacto en la prevalencia de tabaquismo y en la recaudación de diferentes escenarios de aumento de precio a través de impuestos. Resultados: en Colombia cada año mueren 32.088 personas como consecuencia del consumo de cigarrillo y pueden atribuírsele los siguientes porcentajes: el 16% de las muertes cardiovasculares, el 13% de las producidas por accidentes cerebrovasculares, el 77% de las muertes ocasionadas por enfermedad pulmonar obstructiva crónica y el 80% de las muertes por cáncer de pulmón. Las enfermedades relacionadas con el cigarrillo representan un costo directo anual al sistema de salud de más de 4,5 billones de pesos, mientras la recaudación impositiva por la venta de cigarrillos apenas logra cubrir un 10% de este gasto. Un aumento en el precio de los cigarrillos del 50% podría evitar, en un horizonte de 10 años, más de 45.000 muertes y generar recursos por 8 billones por ahorro en gastos sanitarios y aumento de recaudación. Conclusiones: la carga de enfermedad y el costo para el sistema de salud asociados al consumo de tabaco son muy elevados en Colombia. Un aumento del precio de los cigarrillos a través de los impuestos tendría importantes beneficios tanto sanitarios como económicos.


Abstract Objective: to estimate the burden of disease associated with tobacco consumption in Colombia and to evaluate the potential health and economic effect of the price increase in cigarettes through taxes. Materials and methods: to estimate the burden of disease, a first-order Monte Carlo simulation model was designed that incorporated the natural history, costs and quality of life of diseases related to tobacco consumption in adults. A tax model was designed to calculate the impact on the prevalence of smoking and on the collection of different price increase scenarios. Results: according to the proposed model, it can be estimated that in Colombia 26,464 people die every year as a result of cigarette smoking. 13% of cardiovascular deaths, 13% of those caused by strokes, 77% of deaths caused by chronic lung disease and 81 % of deaths from lung cancer can be attributed to their consumption. The diseases related to cigarettes in Colombia represent a direct annual cost of more than 4 billion pesos, while the tax collection from the sale of cigarettes barely covers 10% of this expense. An increase in the price of cigarettes of 50% could prevent more than 30,000 deaths in ten years and generate resources for 7.9 billion savings in health spending and increased collection. Conclusions: the burden of disease and the cost to the health system associated with tobacco use are very high in Colombia. An increase in the price of cigarettes through taxes would have important health and economic benefits for Colombia.


Subject(s)
Humans , Tobacco Use Disorder , Lung Diseases , Lung Neoplasms , Taxes , Tobacco Products , Tobacco Use , Cigarette Smoking
16.
Gac. méd. espirit ; 21(3): 51-61, sept.-dic. 2019. tab
Article in Spanish | LILACS (Americas) | ID: biblio-1090443

ABSTRACT

RESUMEN Fundamentación: En la provincia Sancti Spíritus no se reportan estudios sobre la supervivencia de pacientes con cáncer de pulmón sometidos a cirugía de resección con linfoadenectomía por muestreo. Objetivo: Evaluar la supervivencia de los pacientes con cáncer de pulmón sometidos a cirugía de resección pulmonar y linfadenectomía por muestreo. Metodología: Se realizó una investigación retrospectiva en el Hospital Provincial General Camilo Cienfuegos de Sancti Spíritus, desde el 1 de enero del 1996 al 31 de diciembre del 2007. Fueron incluidos 48 pacientes a los que se les realizó cirugía de resección pulmonar con linfadenectomía por muestreo. Como variable principal fue considerada la supervivencia global a los 5 y 10 años. Otras variables fueron: edad, sexo, clasificación histológica y estadio patológico del tumor primario. Resultados: Predominaron los pacientes del sexo masculino, los mayores de 50 años y con estadio patológico IB. La estirpe histológica predominante fue el carcinoma epidermoide. La mediana de supervivencia fue superior para los estadios tempranos. La mayor supervivencia a los 5 años correspondió a los estadios IA y IIA. A los 10 años no hubo diferencias en la supervivencia de los pacientes. Conclusiones: La mayor supervivencia a los 5 años de los pacientes sometidos a cirugía de resección pulmonar y linfadenectomía por muestreo correspondió a los que se encontraban en estadios con menor extensión de la enfermedad. Entre los 5 y 10 años después de la cirugía hubo una estabilización en la sobrevida de todos los pacientes, indistintamente del estadio patológico inicial.


ABSTRACT Background: In Sancti Spiritus province there are no reports on the survival of patients with lung cancer undergoing resection surgery with lymphadenectomy by sampling. Objective: To evaluate the survival of patients with lung cancer undergoing lung resection surgery and lymphadenectomy by sampling. Methodology: A retrospective investigation was conducted at Camilo Cienfuegos General Provincial Hospital of Sancti Spíritus, from January 1, 1996 to December 31, 2007. They were included 48 patients who underwent lung resection surgery with lymphadenectomy by sampling. The main variable was considered overall survival at 5 and 10 years. Other variables were: age, sex, histological classification and pathological stage of the primary tumor. Results: Male patients, those older than 50 years and with pathological stage IB predominated. The predominant histological line was squamous cell carcinoma. The median survival was higher for the early stages. The greatest survival at 5 years corresponded to stages IA and IIA. At 10 years there were no differences in patient survival. Conclusions: The greatest survival at 5 years of patients undergoing lung resection surgery and lymphadenectomy by sampling corresponded to those who were in stages with less extension of the disease. Between 5 and 10 years after surgery there was stabilization in the survival of all patients, regardless of the initial pathological stage.


Subject(s)
Lung Neoplasms/surgery , Lymph Node Excision , Carcinoma, Squamous Cell , Survivorship
18.
Appl. cancer res ; 39(11): [1-9], 20190000. ilus, tab
Article in English | LILACS (Americas), Inca | ID: biblio-1050979

ABSTRACT

Background: Delays that postpone the evaluation and management of malignancy may lead to considerable morbidity. The primary objective of this study was to assess the time required to diagnose and treat lung cancer at an Indian public referral center that predominantly serves lower-income patients. Methods: A review of patients diagnosed with lung cancer between January 2008 and December 2016 was completed. We computed the median time intervals and inter-quartile ranges between symptom onset, definitive diagnostic investigation, confirmed histologic diagnosis, and chemotherapy initiation. Median intervals were correlated with baseline demographics and disease characteristics using Kruskal-Wallis test. Results: One thousand, three hundred and-seventy patients were selected. A majority (94.5%) with non-small cell lung cancer were diagnosed with advanced disease. After developing symptoms, patients required 101 [56­168] days to undergo a definitive diagnostic study, 107 [60­173] days to confirm a diagnosis, and 126 [85­196.8] days to initiate treatment. Patients who were previously treated for tuberculosis required more time to receive chemotherapy compared to those who were not (187 [134­261.5] days vs. 113 [75­180] days, p < 0.0001). A specialty Lung Cancer Clinic was implemented in 2012, and the mean referrals per month increased nearly four-fold (p < 0.0001), but the time required to administer treatment was not shortened. Conclusion: Among lower-income Indian patients, the most prominent delays occur prior to diagnosis. Efforts should be directed toward encouraging physicians to maintain a high index of clinical suspicion and educating patients to report concerning symptoms as early as possible.


Subject(s)
Humans , Adult , Lung Neoplasms/diagnosis , Lung Neoplasms/therapy , India
19.
Prensa méd. argent ; 105(9 especial): 526-531, oct 2019. tab, fig
Article in English | LILACS (Americas), BINACIS | ID: biblio-1046381

ABSTRACT

In the case of lung cancer, surgery is the only method of therapy that gives the patient a chance to recover. However, even after radical surgery, up to 50 ­ 60 % of patients die in the subsequent five years from the disease progression. This study was aimed at identifying the technical particularities of surgery, depending on the side of the lung affected by a tumor and the possibility of applying the methods that improve the results of surgical therapy. The study was performed at the Thoracic Department of the Republican Clinical Oncology Dispensary in Ufa and the 1st Surgical Department of the Regional Oncology Center of the Regional Clinical Hospital in Khanty- Mansiysk. The study involved a total of 156 patients (including 148 male and eight female patients). The main result of the study has been the confirmation of the advantages of bronchoplastic surgery, which do not increase post-surgery mortality and improve the post-surgery period, and the relevant principles of preserving surgery.


Subject(s)
Humans , General Surgery/methods , Surgical Procedures, Operative/mortality , Mortality , Lung Neoplasms/surgery
20.
Autops. Case Rep ; 9(3): e2019110, July-Sept. 2019. tab, ilus
Article in English | LILACS (Americas) | ID: biblio-1017374

ABSTRACT

Undifferentiated pleomorphic sarcoma (UPS) is a high-grade pleomorphic neoplasm with no identifiable line(s) of differentiation using currently available diagnostic techniques. Therefore, it is essentially a diagnosis of exclusion, which requires generous tissue sampling, adequate contextually interpreted immunohistochemistry, and relevant molecular studies. UPS is a common soft tissue sarcoma (historically one of the entities referred to as malignant fibrous histiocytoma (MFH)), which can develop in various organs, but lung involvement is usually due to metastasis. Primary Pulmonary UPS (PPUPS) is exceptionally rare and here we present a 66-year-old man who presented with anemia and weight loss, found to have a 17 cm right lung mass with invasion to the chest wall and diaphragm. Extensive sampling and immunohistochemistry studies failed to reveal any line of differentiation. Upon exclusion of a possible extrapulmonary origin, a diagnosis of PPUPS was rendered. In addition, we reviewed all 84 previously reported cases of PPUPS/PPMFH in the literature since 1979 and summarized the clinical information.


Subject(s)
Humans , Male , Aged , Sarcoma/complications , Lung Neoplasms/complications , Soft Tissue Neoplasms
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