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1.
Medicina (Kaunas) ; 59(5)2023 May 12.
Artículo en Inglés | MEDLINE | ID: mdl-37241165

RESUMEN

Background and objectives: The objective of this study is to elucidate peripheral occlusion artery disease (PAOD) as a risk factor for cellulitis. Materials and Methods: This is a retrospective population-based cohort study. The database is the Longitudinal Health Insurance Database, which covers two million beneficiaries from the entire population of the 2010 registry for beneficiaries in Taiwan. The PAOD group is composed of patients who were newly diagnosed with PAOD from 2001 to 2014. The non-PAOD group is composed of patients who were never diagnosed with PAOD from 2001 to 2015. All patients were followed until the onset of cellulitis, death, or until the end of 2015. Results: Finally, 29,830 patients who were newly diagnosed with PAOD were included in the PAOD group, and 29,830 patients who were never diagnosed with PAOD were included in the non-PAOD group. The incidence densities (ID) of cellulitis were 26.05 (95% CI = 25.31-26.80) patients per 1000 person-years in the PAOD group and 49.10 (95% CI = 48.04-50.19) in the non-PAOD group. The PAOD group had an increased risk of cellulitis (adjusted HR = 1.94, 95% CI = 1.87-2.01) compared to the non-PAOD group. Conclusions: Patients with PAOD were associated with a higher risk of subsequent cellulitis compared to patients without PAOD.


Asunto(s)
Arteriopatías Oclusivas , Enfermedad Arterial Periférica , Humanos , Estudios Retrospectivos , Estudios de Cohortes , Celulitis (Flemón)/etiología , Celulitis (Flemón)/complicaciones , Enfermedad Arterial Periférica/complicaciones , Enfermedad Arterial Periférica/epidemiología , Factores de Riesgo , Arteriopatías Oclusivas/complicaciones , Arteriopatías Oclusivas/epidemiología
2.
Environ Toxicol ; 37(6): 1509-1520, 2022 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-35229981

RESUMEN

Nasopharyngeal carcinoma (NPC) is one of the most aggressive malignant tumors of the head and neck. Xanthohumol (Xn) is a compound extracted in a high concentration from the hard resin of hops (Humulus lupulus L.), the basic raw material of beer. This study investigated the apoptotic effect and anticancer properties of Xn in human NPC cell lines. Our study demonstrated that at the concentration 40 µM, Xn significantly reduced cell viability and promoted cell cycle arrest in the G2/M phase in two cell lines. The results indicated that Xn induced apoptosis in NPC cell lines through annexin V/propidium iodide staining, chromatin condensation, and apoptosis-related pathways. Xn upregulated the expression of apoptosis-related proteins, namely DR5, cleaved RIP, caspase-3, caspase-8, caspase-9, PARP, Bim, and Bak, and it downregulated the expression of Bcl-2. Xn upregulated the c-Jun N-terminal kinase (JNK) in the mitogen-activated protein kinase (MAPK), and the inhibition of JNK clearly resulted in decreasing expression of Xn-activated cleaved caspase-3 and PARP. Our research provides sufficient evidence to confirm that Xn induces the MAPK JNK pathway to promote apoptosis of NPC and is expected to become a safe and acceptable treatment option for human NPC.


Asunto(s)
Neoplasias Nasofaríngeas , Inhibidores de Poli(ADP-Ribosa) Polimerasas , Apoptosis , Proteínas Reguladoras de la Apoptosis , Caspasa 3/metabolismo , Línea Celular Tumoral , Flavonoides/farmacología , Humanos , Proteína Quinasa 8 Activada por Mitógenos/metabolismo , Proteína Quinasa 9 Activada por Mitógenos/metabolismo , Carcinoma Nasofaríngeo , Inhibidores de Poli(ADP-Ribosa) Polimerasas/farmacología , Propiofenonas , Transducción de Señal
3.
Medicina (Kaunas) ; 56(11)2020 Nov 18.
Artículo en Inglés | MEDLINE | ID: mdl-33218003

RESUMEN

Background and objectives: We aimed to evaluate the correlation between periodontal disease (PD) and following ocular diseases via the National Health Insurance Research Database in Taiwan. Materials and Methods: A retrospective cohort study was conducted. Subjects were regarded as having PD according to the diagnostic codes. For comparison, each subject with PD was matched to one non-PD individual from the database after exclusion. The main outcome was defined as the development of infectious keratitis, endophthalmitis, orbital cellulitis, lacrimal duct infection, uveitis and infectious scleritis. Cox proportional hazard regression was used to yield the adjusted hazard ratios (aHR) of ocular diseases between the study and control groups. Results: A total of 426,594 subjects were enrolled in both the study and control groups. In the multivariable analysis, significantly higher rates of infectious keratitis (aHR: 1.094, 95% CI: 1.030-1.161), uveitis (aHR: 1.144, 95% CI: 1.074-1.218) and infectious scleritis (aHR: 1.270, 95% CI: 1.114-1.449) were found in the study group. Concerning the PD interval, infectious keratitis (aHR: 1.159, 95% CI: 1.041-1.291) and infectious scleritis (aHR: 1.345, 95% CI: 1.055-1.714) would significantly occur in PD patients with an interval shorter than two years, individuals with a PD interval that ranged from two to five years were under a higher risk of developing uveitis (aHR: 1.184, 95% CI: 1.065-1.315) and infectious scleritis (aHR: 1.386, 95% CI: 1.125-1.708), and the rate of uveitis (aHR: 1.149, 95% CI: 1.038-1.272) was significantly higher if PD persisted more than five years. Conclusions: The presence of PD was moderately associated with the risk of developing infectious keratitis, uveitis and infectious scleritis.


Asunto(s)
Enfermedades Periodontales , Estudios de Cohortes , Humanos , Incidencia , Enfermedades Periodontales/complicaciones , Enfermedades Periodontales/epidemiología , Estudios Retrospectivos , Factores de Riesgo , Taiwán/epidemiología
4.
Medicina (Kaunas) ; 56(8)2020 Jul 24.
Artículo en Inglés | MEDLINE | ID: mdl-32722165

RESUMEN

Background and objectives: Breast cancer is a common cancer in women and has been the fourth leading cause of death in Taiwanese women. Risk factors for breast cancer include family history of breast cancer, genetic factors, and not breastfeeding. Several studies have reported an association between repeated inflammation at a young age, especially among lactating women, and cancer; however, the number of studies about the association of mastitis and breast cancer in nonlactating women is still limited. Therefore, the aim of this study was to determine the relationship between mastitis in women aged ≥40 years and breast cancer. Materials and Methods: This was a retrospective cohort study design. The data source was the Longitudinal Health Insurance Database 2010 (LHID 2010), comprising data collected by Taiwan's National Health Insurance program. Cases of newly diagnosed mastitis in women aged ≥40 years (ICD-9-CM code = 611.0) were selected from the years 2010 to 2012. Women not diagnosed with mastitis were selected as the control group, and their data for the years 2009 to 2013 were obtained through the database. In addition, the non-mastitis group was matched 1:10 by age. Results: A total of 8634 participants were selected from the LHID 2010, which included 734 cases with mastitis and 7900 cases without mastitis. After adjustment for age, hypertension, hyperlipidemia, diabetes, hypothyroidism, and autoimmune diseases, the Cox proportional hazard model showed that patients with mastitis had a higher risk of breast cancer (aHR = 3.71, 95% CI = 1.9-7.02) compared with the non-mastitis group. The Kaplan-Meier curve also showed that women with mastitis had a higher risk of developing breast cancer. Conclusions: This study confirmed that women with mastitis have a higher risk of developing breast cancer. Therefore, women aged ≥40 years could reduce breast cancer risk by taking precautions to prevent mammary gland infection and mastitis.


Asunto(s)
Neoplasias de la Mama/diagnóstico , Mastitis/complicaciones , Medición de Riesgo/métodos , Adulto , Enfermedades Autoinmunes/complicaciones , Enfermedades Autoinmunes/epidemiología , Neoplasias de la Mama/epidemiología , Estudios de Cohortes , Correlación de Datos , Diabetes Mellitus/epidemiología , Femenino , Humanos , Hiperlipidemias/complicaciones , Hiperlipidemias/epidemiología , Hipertensión/complicaciones , Hipertensión/epidemiología , Hipertiroidismo/complicaciones , Hipertiroidismo/epidemiología , Mastitis/epidemiología , Persona de Mediana Edad , Estudios Retrospectivos , Factores de Riesgo
5.
Medicina (Kaunas) ; 56(2)2020 Feb 13.
Artículo en Inglés | MEDLINE | ID: mdl-32069944

RESUMEN

Background and objectives: High-density lipoprotein cholesterol (HDL-C) is important for improving risk estimates of atherosclerotic cardiovascular disease. We investigated the effect of omnivore and diverse vegetarian diets in connection with exercise on HDL-C. Materials and Methods: Historical data of 9588 biobank participants (4025 exercisers and 5563 non-exercisers) aged 30-70 years were categorized as omnivores (n = 8589), former vegetarians (n = 544), lacto-ovo vegetarians (n = 417), and strict vegetarians (n = 38). We used multiple linear regression for analyses. Results: HDL-C levels were higher in exercisers compared to non-exercisers. Compared with omnivores, strict vegetarians had decreased levels of HDL-C (ß = -5.705; p = 0.001) followed by lacto-ovo vegetarians (ß = -3.900; p < 0.001) and former vegetarians (ß = -0.329; p = 0.475). The test for trend was significant (p < 0.001). After categorization by exercise modalities, the ß-value was -13.984 for strict vegetarians, -4.419 for lacto-ovo vegetarians, and -1.864 for former vegetarians, respectively (p < 0.05). There was an interaction between diet and exercise (p = 0.009). Omnivores who exercised regularly had significantly higher HDL-C, whereas strict vegetarians who exercised regularly had significantly lower HDL-C. Conclusions: In summary, strict vegetarian diets in conjunction with regular exercise might not serve as healthful behaviors to be implemented in everyday life considering the negative impact on HDL-C.


Asunto(s)
HDL-Colesterol/análisis , Dieta Vegetariana/normas , Ejercicio Físico/fisiología , Adulto , Anciano , Índice de Masa Corporal , HDL-Colesterol/sangre , Dieta Vegetariana/métodos , Dieta Vegetariana/estadística & datos numéricos , Femenino , Humanos , Masculino , Persona de Mediana Edad , Factores de Riesgo , Taiwán/epidemiología
6.
Cell Physiol Biochem ; 52(6): 1255-1266, 2019.
Artículo en Inglés | MEDLINE | ID: mdl-31026389

RESUMEN

BACKGROUND/AIMS: Praeruptorins, a seselin-type coumarin, possess anti-inflammatory and antitumor promoting properties. However, molecular mechanisms through which Praeruptorin-B (Pra-B) exerts an antimetastatic effect on cervical cancer cells remain unclear. METHODS: Cell viability was examined using the MTT assay, whereas cell migration and invasion were examined using the Boyden chamber assay. Western blotting and RT-PCR were performed to investigate the inhibitory effect of Pra-B on 12-O-tetradecanoylphorbol-13-acetate (TPA)-induced matrix metalloproteinase-2/-9 (MMP-2/-9) expression in HeLa cells. The findings of the luciferase assay confirmed the inhibitory effect of Pra-B on TPA-induced transcriptional activity of MMP2/-9 in HeLa cells. RESULTS: Pra-B inhibited TPA-induced metastatic ability of human cervical cancer cells without any significant toxicity. Pra-B suppressed TPA-induced mRNA and protein expression and transcriptional activity of MMP-2/-9 in HeLa cells. Furthermore, Pra-B inhibited AKT phosphorylation but did not affect the MAPK pathway. Cotreatment of HeLa cells with TPA plus Pra-B or LY294002 (a PI3K inhibitor) reduced cell invasion and MMP-2/-9 expression and transcriptional activity. In addition, Pra-B attenuated TPA-induced nuclear translocation of NF-κB-p65/-p50, which reduced Ikk-α phosphorylation in HeLa cells. Cotreatment of HeLa cells with TPA plus Pra-B or LY294002 reduced NF-κB nuclear translocation. CONCLUSION: These results suggested that Pra-B-mediated inhibition of TPA-induced cell metastasis involved the suppression of p-AKT/NF-κB via MMP-2/-9 expression in HeLa cells. Pra-B can be a potential antimetastatic agent against cervical cancer.


Asunto(s)
Antineoplásicos Fitogénicos/farmacología , Cumarinas/farmacología , Regulación Neoplásica de la Expresión Génica/efectos de los fármacos , Invasividad Neoplásica/prevención & control , Transducción de Señal/efectos de los fármacos , Neoplasias del Cuello Uterino/tratamiento farmacológico , Medicamentos Herbarios Chinos/farmacología , Femenino , Células HeLa , Humanos , Metaloproteinasa 2 de la Matriz/genética , Metaloproteinasa 9 de la Matriz/genética , FN-kappa B/metabolismo , Invasividad Neoplásica/genética , Proteínas Proto-Oncogénicas c-akt/metabolismo , Acetato de Tetradecanoilforbol , Neoplasias del Cuello Uterino/genética , Neoplasias del Cuello Uterino/metabolismo
9.
Environ Toxicol ; 34(4): 513-520, 2019 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-30623577

RESUMEN

The incidence of oral cancer is increasing all over the world, with rates particularly high in Southeast Asian countries, such as Taiwan. Coronarin D (CD) has been confirmed to have anti-inflammatory, anti-bacterial effects, and anti-apoptotic effects in human hepatocellular carcinoma and nasopharyngeal carcinoma. The purpose of this study is to explore whether CD has a suppression effect on oral cancer cells and the mechanisms involved. The results of our study revealed the significantly decreased cancer cell viability and increased activation of apoptosis via increased loss of mitochondrial membrane potential, increased death receptors, leading to the activation of caspase-8, -9, -3. Moreover, the rate of apoptosis of cells treated with CD plus JNK inhibitors was decreased compared to CD-treated cells. This is the first study to demonstrate that CD induces apoptosis in human oral cancer cells and can be expected to be a promising anticancer agent for oral cancer treatment.


Asunto(s)
Antineoplásicos Fitogénicos/farmacología , Apoptosis/efectos de los fármacos , Diterpenos/farmacología , Sistema de Señalización de MAP Quinasas/efectos de los fármacos , Neoplasias de la Boca/patología , Apoptosis/genética , Ciclo Celular/efectos de los fármacos , Línea Celular Tumoral , Supervivencia Celular/efectos de los fármacos , Humanos , Potencial de la Membrana Mitocondrial/efectos de los fármacos , Neoplasias de la Boca/enzimología , Zingiberaceae/química
10.
Anticancer Drugs ; 28(10): 1150-1156, 2017 11.
Artículo en Inglés | MEDLINE | ID: mdl-28938245

RESUMEN

Gallic acid (GA) possesses potential antitumoral activity on different types of malignancies. In this study, we aimed to explore the antitumoral effects of GA on triple-negative breast cancer (TNBC) cells, the breast cancer cells showing resistance to hormonal therapy or HER2 receptor targeting therapy. We observed that GA treatment significantly decreased the cell viability of human TNBC cell line MDA-MB-231 and HS578T in a dose-dependent manner. In addition, GA exerted a relative lower cytotoxicity on noncancer breast fibroblast MCF-10F. Next, we analyzed the changes of cell-cycle distribution in response to GA treatment and found that GA led to an increase of G0/G1 and sub-G1 phase ratio in MDA-MB-231 cells. We further explored the crucial mediators controlling cell cycle and inducing apoptotic signaling, and the findings showed that GA downregulated cyclin D1/CDK4 and cyclin E/CDK2, upregulated p21and p27, and induced activation of caspase-9 and caspase-3. In addition, we demonstrated that p38 mitogen-activated protein kinase was involved in the GA-mediated cell-cycle arrest and apoptosis. Collectively, our findings indicate that GA inhibits the cell viability of TNBC cells, which may attribute to the G1 phase arrest and cellular apoptosis via p38 mitogen-activated protein kinase/p21/p27 axis. Thus, we suggest that GA could be beneficial to TNBC treatment.


Asunto(s)
Inhibidor p21 de las Quinasas Dependientes de la Ciclina/metabolismo , Inhibidor p27 de las Quinasas Dependientes de la Ciclina/metabolismo , Ácido Gálico/farmacología , Sistema de Señalización de MAP Quinasas/efectos de los fármacos , Neoplasias de la Mama Triple Negativas/tratamiento farmacológico , Neoplasias de la Mama Triple Negativas/enzimología , Apoptosis/efectos de los fármacos , Línea Celular Tumoral , Ciclinas/metabolismo , Regulación hacia Abajo/efectos de los fármacos , Puntos de Control de la Fase G1 del Ciclo Celular/efectos de los fármacos , Humanos , Neoplasias de la Mama Triple Negativas/metabolismo , Neoplasias de la Mama Triple Negativas/patología
11.
Tumour Biol ; 37(3): 4017-23, 2016 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-26482622

RESUMEN

Reduced nuclear p27 expression is associated with a poor outcome in various cancers, including non-small cell lung cancer (NSCLC). Cytoplasmic p27 expression was shown to be associated with an unfavorable response to chemotherapy and poor outcomes in some carcinomas, but it has not been well studied in NSCLC. Herein, p27 expression in 219 tumors surgically resected from NSCLC patients was evaluated by immunohistochemistry (IHC). The most common of p27 immunostaining in lung tumors was observed in the cytoplasm (N-/C+, 32 %), followed by negative (N-/C-, 29 %), nucleus (N+/C-, 24 %), and nucleus plus cytoplasm (N+/C+, 15 %). Kaplan-Meier and Cox regression models showed that p27 N-/C+ tumors exhibited the worst overall survival (OS) and relapse-free survival (RFS) among the four categories of tumors. Among 135 of 219 patients who received cisplatin-based chemotherapy, p27 N-/C+ tumors most commonly showed an unfavorable response to cisplatin-based chemotherapy, followed by p27 N-/C- tumors when p27 N+/C- tumors were used as a reference. IHC analysis for phosphorylated extracellular signal-regulated kinase (p-ERK) and Bcl-2 expression in the lung tumors was performed to test whether ERK activation could enhance p27 nuclear export and the expression of Bcl-2 to test whether ERK activation could enhance p27 nuclear export and Bcl-2 expression. The data showed that p-ERK expression was positively correlated with cytoplasmic p27 (N-/C+) and Bcl-2 expression in the lung tumors. Patients with high Bcl-2-expressing tumors treated with cisplatin-based chemotherapy showed unfavorable predictive values in a subset of this study population. Therefore, we suggest that cytoplasmic p27 (N-/C+) via ERK-activated Bcl-2 expression may predict an unfavorable response to cisplatin-based chemotherapy and poor outcomes in NSCLC.


Asunto(s)
Antineoplásicos/farmacología , Biomarcadores de Tumor/metabolismo , Carcinoma de Pulmón de Células no Pequeñas/metabolismo , Cisplatino/farmacología , Inhibidor p27 de las Quinasas Dependientes de la Ciclina/metabolismo , Neoplasias Pulmonares/metabolismo , Anciano , Antineoplásicos/uso terapéutico , Carcinoma de Pulmón de Células no Pequeñas/tratamiento farmacológico , Carcinoma de Pulmón de Células no Pequeñas/mortalidad , Cisplatino/uso terapéutico , Citoplasma/metabolismo , Supervivencia sin Enfermedad , Resistencia a Antineoplásicos , Femenino , Humanos , Estimación de Kaplan-Meier , Neoplasias Pulmonares/tratamiento farmacológico , Neoplasias Pulmonares/mortalidad , Masculino , Persona de Mediana Edad , Pronóstico , Modelos de Riesgos Proporcionales , Resultado del Tratamiento
12.
Tumour Biol ; 37(2): 2067-74, 2016 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-26341495

RESUMEN

Intercellular adhesion molecule-1 (ICAM-1) is a human protein encoded by the ICAM-1 gene and is typically expressed on endothelial cells and immune cells. ICAM-1 is associated with episode, growth, invasion, and metastasis of hepatocellular carcinoma (HCC). However, the association between ICAM-1 genetic variants and the risk of HCC is undetermined. In this study, we investigated the potential associations of ICAM-1 single nucleotide polymorphisms (SNPs) with susceptibility to HCC and its clinicopathological characteristics. A total of 918 participants, including 613 controls participants and 305 patients with HCC, were selected for the analysis of ICAM-1 SNPs (rs3093030, rs5491, rs281432, and rs5498) by using real-time PCR genotyping. After adjusting for covariants of age, sex, and alcohol consumption, 125 smoker patients with HCC carrying at least one G genotype (AG and GG) in rs5498 were observed to have a higher HCC risk compared with 231 smoker control participants carrying the wild-type allele AA (adjusted odds ratio (AOR), 1.713; 95 % confidence interval (CI), 1.091-2.690; P = 0.019). However, patients who possess at least one polymorphic allele of rs5498 are less prone to develop vascular invasive (AOR, 0.309; 95 % CI, 0.103-0.926; P = 0.036). The results suggest that the genetic polymorphism in ICAM-1 rs5498 SNPs with genotype AG and GG is associated with HCC risk among smokers. Moreover, gene and environment interactions of ICAM-1 rs5498 polymorphisms might alter susceptibility to liver cancer. Therefore, ICAM-1 rs5498 may serve as a marker to predict the vascular invasion risk in smoker patients with HCC.


Asunto(s)
Carcinoma Hepatocelular/genética , Predisposición Genética a la Enfermedad/genética , Neoplasias Hepáticas/genética , Adulto , Anciano , Estudios de Casos y Controles , Femenino , Genotipo , Humanos , Molécula 1 de Adhesión Intercelular , Masculino , Persona de Mediana Edad , Oportunidad Relativa , Polimorfismo de Nucleótido Simple , Reacción en Cadena en Tiempo Real de la Polimerasa , Fumar/efectos adversos
13.
Int J Mol Sci ; 17(7)2016 Jun 24.
Artículo en Inglés | MEDLINE | ID: mdl-27347940

RESUMEN

Oral cancer is a common cancer with poor prognosis. We evaluated the expression of PBK/TOPK (PDZ-binding kinase/T-LAK cell-originated protein kinase) and its prognostic significance in oral cancer. PBK/TOPK expression was measured by immunohistochemical staining of samples from 287 patients with oral cancer. The association between PBK/TOPK expression and clinicopathological features was analyzed. The prognostic value of PBK/TOPK for overall survival was determined by Kaplan-Meier analysis and Cox proportional hazard models. A high PBK/TOPK expression level was correlated with long overall survival. The prognostic role of PBK/TOPK expression was significant in young patients (p < 0.05), patients with smoking habits (p < 0.05), and late stage disease (p < 0.05). Our results suggest that PBK/TOPK expression is enhanced in oral cancer. High PBK/TOPK expression, either alone or in subgroups according to clinicopathological features, may serve as a favorable prognostic marker for patients with oral cancer.


Asunto(s)
Biomarcadores de Tumor/metabolismo , Carcinoma de Células Escamosas/metabolismo , Quinasas de Proteína Quinasa Activadas por Mitógenos/metabolismo , Neoplasias de la Boca/metabolismo , Anciano , Anciano de 80 o más Años , Biomarcadores de Tumor/genética , Carcinoma de Células Escamosas/patología , Femenino , Humanos , Masculino , Persona de Mediana Edad , Quinasas de Proteína Quinasa Activadas por Mitógenos/genética , Neoplasias de la Boca/patología
14.
Ann Surg Oncol ; 22 Suppl 3: S1532-9, 2015 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-25990966

RESUMEN

BACKGROUND: MicroRNA (miR)-184 has been reported to have a dual role in human cancers. However, the role of miR-184 in non-small cell lung cancer (NSCLC) remains unclear. METHODS: Wild-type or mutant CDC25A promoters were constructed by PCR and site-directed mutagenesis to verify whether miR-184 could inhibit CDC25A expression at post-transcription level. Boyden chamber assay was used to assess whether miR-184 could modulate cell invasiveness via targeting CDC25A and c-Myc. We utilized 124 tumors from NSCLC patients to determine miR-184, miR-21, PDCD4 mRNA, c-Myc mRNA, and CDC25A mRNA expression levels by means of real-time PCR analysis. The prognostic value of CDC25A, c-Myc, and miR-184 on overall survival (OS) and relapse-free survival (RFS) was evaluated by Kaplan-Meier and Cox regression analysis. RESULTS: MiR-184 suppressed CDC25A expression by enhancing the instability of its mRNA as a result of miR-184 binding to its coding region. An increase in CDC25A expression by means of a reduction in miR-184 promotes cell invasiveness. Moreover, a concomitant increase in CDC25A and c-Myc expression as a result of decreased miR-184 via the miR-21-mediated PDCD4 reduction is responsible for cell invasiveness. Among patients, miR-184 expression in lung tumors was found to correlate negatively with CDC25A mRNA, c-Myc mRNA, and miR-21 expression, but was positively related to PDCD4 mRNA expression. High-miR-184, High-CDC25A, or high-c-Myc mRNA tumors exhibited shorter OS and RFS periods than their counterparts. The worst OS and RFS were observed in low-miR-184/high-CDC25A/high-c-Myc tumors, followed by low-miR-184 /high-CDC25A, low-miR-184/high-c-Myc, high-c-Myc, and high-CDC25A tumors. CONCLUSIONS: MiR-184 as a tumor suppressor miR inhibits cell proliferation and invasion capability via targeting CDC25A and c-Myc. Low miR-184 level may predict worse prognosis in NSCLC patients.


Asunto(s)
Biomarcadores de Tumor/metabolismo , Carcinoma de Pulmón de Células no Pequeñas/patología , Neoplasias Pulmonares/patología , MicroARNs/genética , Proteínas Proto-Oncogénicas c-myc/metabolismo , Fosfatasas cdc25/metabolismo , Apoptosis , Biomarcadores de Tumor/genética , Carcinoma de Pulmón de Células no Pequeñas/genética , Carcinoma de Pulmón de Células no Pequeñas/metabolismo , Movimiento Celular , Proliferación Celular , Regulación Neoplásica de la Expresión Génica , Humanos , Técnicas para Inmunoenzimas , Neoplasias Pulmonares/genética , Neoplasias Pulmonares/metabolismo , Invasividad Neoplásica , Estadificación de Neoplasias , Pronóstico , Proteínas Proto-Oncogénicas c-myc/genética , ARN Mensajero/genética , Reacción en Cadena en Tiempo Real de la Polimerasa , Reacción en Cadena de la Polimerasa de Transcriptasa Inversa , Tasa de Supervivencia , Células Tumorales Cultivadas , Fosfatasas cdc25/genética
15.
Carcinogenesis ; 35(10): 2175-82, 2014 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-24832083

RESUMEN

MiR-21 has been associated with poor prognosis in colon adenocarcinomas. However, in our preliminary data, the prognostic value of miR-21 levels was observed only in adenomatous polyposis coli (APC)-mutated tumours, not in APC-wild-type tumours. We explored whether ß-catenin nuclear translocation was synergistically promoted by miR-21 in APC-mutated cells but not in APC-wild-type cells. We enrolled 165 colorectal tumour to determine APC mutation, miR-21 levels and nuclear ß-catenin expression by direct sequencing, real-time PCR and immunohistochemistry. Overall survival and relapse-free survival were analysed by Kaplan-Meier and Cox regression models. The mechanistic action of ß-catenin nuclear translocation modulated by miR-21 and its effect on cell invasion were evaluated in a cell model. Positive nuclear ß-catenin expression was more commonly occurred in APC-mutated tumours than in APC-wild-type tumours. High miR-21 levels were relatively more common in tumours with positive nuclear ß-catenin expression than in those with negative nuclear ß-catenin expression. APC-mutated tumours with high miR-21 levels had shorter overall survival and relapse-free survival periods compared with others. However, the prognostic value of miR-21 levels was not observed in APC-wild-type tumours. Phosphorylation of ß-catenin at Ser552 via the miR-21-mediated PTEN/AKT axis plays a critical role in ß-catenin nuclear translocation in APC-mutated cells but not in APC-wild-type cells. Moreover, nuclear ß-catenin expression increased by miR-21 is responsible for the capability of invasiveness. In summary, nuclear translocation of ß-catenin increased by miR-21 promotes tumour malignancy and a poor outcome in APC-mutated patients but not in APC-wild-type colorectal cancer.


Asunto(s)
Proteína de la Poliposis Adenomatosa del Colon/genética , Neoplasias Colorrectales/genética , Neoplasias Colorrectales/mortalidad , MicroARNs/genética , Mutación , beta Catenina/metabolismo , Anciano , Neoplasias Colorrectales/patología , Supervivencia sin Enfermedad , Femenino , Humanos , Masculino , Persona de Mediana Edad , Fosforilación , Transporte de Proteínas , Serina/metabolismo , beta Catenina/genética
17.
Ann Surg Oncol ; 21 Suppl 4: S703-10, 2014 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-24879590

RESUMEN

BACKGROUND: Liver kinase B1 (LKB1) loss by gene mutation, loss of heterozygosity, and promoter methylation rarely occurs in colorectal cancer. We wondered whether LKB1 loss could be deregulated at the transcriptional level to promote tumor progression and poor outcome in colorectal cancer. METHODS: Mechanistic studies were performed in two each of p53 wild-type (HCT116, LoVo) and p53-mutated (SW480, HT29) colon cancer cells to explore whether LKB1 loss could be deregulated by NKX2-1-mediated p53 pathway. LKB1 and NK2 homeobox 1 (NKX2-1) expressions in colorectal tumors were determined by immunohistochemistry, and the prognostic value of both molecules was assessed by Kaplan-Meier test and Cox regression model. RESULTS: Mechanistically, LKB1 loss at the transcriptional level due to alteration of the NKX2-1-mediated p53 pathway promotes invasiveness in colon cancer cells. The cell invasiveness induced by LKB1 loss was nearly suppressed by mammalian target of rapamycin (mTOR) inhibitor (rapamycin and everolimus) and mTOR/AKT dual inhibitor Palomid 529 (P529). Among patients, low LKB1 tumors exhibited shorter overall survival (OS) and relapse-free survival periods than high LKB1 tumors. The highest hazard ratio value for OS and relapse-free survival was observed in wild-type p53 with low LKB1/low NKX2-1 tumors and in mutated p53 with low LKB1/high NKX2-1 tumors when wild-type p53 with high LKB1/high NKX2-1 and mutated p53 with high LKB1/low NKX2-1 tumors were used as references. CONCLUSIONS: LKB1 loss at the transcriptional level via alteration of the NKX2-1/p53 axis promotes cell invasion, consequently resulting in poor outcome in colorectal cancer patients.


Asunto(s)
Neoplasias Colorrectales/genética , Neoplasias Colorrectales/patología , Proteínas Nucleares/metabolismo , Proteínas Serina-Treonina Quinasas/genética , Factores de Transcripción/metabolismo , Transcripción Genética , Proteína p53 Supresora de Tumor/metabolismo , Quinasas de la Proteína-Quinasa Activada por el AMP , Anciano , Antineoplásicos/farmacología , Benzopiranos/farmacología , Neoplasias Colorrectales/química , Progresión de la Enfermedad , Supervivencia sin Enfermedad , Everolimus , Técnicas de Silenciamiento del Gen , Células HCT116 , Células HT29 , Humanos , Estimación de Kaplan-Meier , Persona de Mediana Edad , Invasividad Neoplásica , Proteínas Nucleares/análisis , Proteínas Nucleares/genética , Modelos de Riesgos Proporcionales , Proteínas Serina-Treonina Quinasas/análisis , Transducción de Señal , Sirolimus/análogos & derivados , Sirolimus/farmacología , Tasa de Supervivencia , Factor Nuclear Tiroideo 1 , Factores de Transcripción/análisis , Factores de Transcripción/genética , Transcripción Genética/efectos de los fármacos , Proteína p53 Supresora de Tumor/genética
18.
Biomarkers ; 19(4): 269-74, 2014 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-24773072

RESUMEN

CONTEXT: Mitochondrial DNA (mtDNA) copy number correlates with tumor pathology in some cancers. OBJECTIVE: To investigate mtDNA copy number in head and neck cancer (HNC). MATERIALS AND METHODS: mtDNA copy number was determined and compared between HNC patients and malignancy-free controls. RESULTS: The mtDNA copy number was significantly higher in HNC patients, increased with cancer progression and correlated negatively with patient survival. DISCUSSION: mtDNA copy number appears to be associated with HNC stage and survival, but confirmation requires similar studies in larger cohorts. CONCLUSION: Studies to establish the nature of the relationship between mtDNA copy number and HNC are warranted.


Asunto(s)
Variaciones en el Número de Copia de ADN , ADN Mitocondrial/genética , Neoplasias de Cabeza y Cuello/diagnóstico , Adulto , Anciano , Secuencia de Bases , Cartilla de ADN , Femenino , Neoplasias de Cabeza y Cuello/genética , Neoplasias de Cabeza y Cuello/patología , Humanos , Masculino , Persona de Mediana Edad , Pronóstico , Reacción en Cadena en Tiempo Real de la Polimerasa , Tasa de Supervivencia
19.
J Clin Med ; 13(10)2024 May 10.
Artículo en Inglés | MEDLINE | ID: mdl-38792368

RESUMEN

Objectives: This retrospective case-controlled study aimed to evaluate the association between the severity of fall-related injuries and fall-risk-increasing drugs (FRIDs) in hospitalized patients. Methods: Data were collected from Changhua Christian Hospital, Taiwan, of all adult inpatients who experienced falls between January 2017 and December 2021, and were divided into two groups based on whether they sustained severe fall-related injuries. Retrospective data that may affect the severity of fall-related injuries and the use of FRIDs were investigated. Results: Among 1231 documented cases of falls, 26 patients sustained severe fall-related injuries. Older patients and those with osteoporosis were more susceptible to more severe injuries from a fall. The use of mobility aids and osteoporosis medications showed protective effects against fall injuries. No significant association was observed between fall-related injuries and comorbidities or FRIDs. Multivariate analysis confirmed the inverse correlation between the use of mobility aids, osteoporosis medications, and fall severity. Patients with osteoporosis exhibited significantly higher odds of sustaining more severe injuries with a fall (odds ratio = 3.02, 95% confidence interval: 1.21-7.53). Conclusions: This study highlights the importance of addressing risk factors associated with fall severity among hospitalized patients. Providing mobility aids to persons at greater risk.

20.
J Clin Med ; 13(6)2024 Mar 11.
Artículo en Inglés | MEDLINE | ID: mdl-38541823

RESUMEN

Background: The mortality rate associated with nontraumatic intracranial hemorrhage (NTICrH) remains consistently high under the current care modality. The effectiveness of tranexamic acid (TXA) as a treatment option is still a subject of debate. This study aims to assess the association between TXA administration and both short-term and long-term mortality rates in patients with NTICrH. Methods: We conducted a retrospective cohort study using data from the Taiwan National Health Insurance Research Database (NHIRD) spanning from January 2000 to December 2017. The study population consists of NTICrH patients admitted to the ICU, divided into two groups: patients who were treated with TXA and those who were not. Propensity score matching (PSM) was conducted to balance the baseline characteristics of the two groups. Cox proportional hazard analysis was conducted to estimate the hazard ratio (HR) for the all-cause mortality. Sensitivity analyses were performed using the inverse probability of treatment-weighted hazard ratio (IPTW-HR). To assess the timing of TXA use, we compared the risk of all-cause mortality within 180 days between patients receiving early TXA treatment and those receiving late TXA treatment. Results: There was no significant difference in 180-day all-cause mortality between the groups; the hazard ratio was 1.07 (95% CI: 0.96-1.20) in patients treated with TXA compared to those without TXA treatment. Within 7 days of admission, patients treated with TXA had a lower hazard ratio of 0.81 (95% CI: 0.74-0.90) for all-cause mortality. Conclusions: Lower mortality within the first 7 days was observed in patients with NTICrH who received TXA.

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