Tumor Angiogenesis
Mostrando 13-24 de 344 artigos, teses e dissertações.
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13. Tissue hyaluronan expression, as reflected in the sputum of lung cancer patients, is an indicator of malignancy
Hyaluronan (HA) shows promise for detecting cancerous change in pleural effusion and urine. However, there is uncertainty about the localization of HA in tumor tissue and its relationship with different histological types and other components of the extracellular matrix, such as angiogenesis. We evaluated the association between HA and degree of malignanc
Braz J Med Biol Res. Publicado em: 08/05/2015
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14. Putative role of ischemic postconditioning in a rat model of limb ischemia and reperfusion: involvement of hypoxia-inducible factor-1α expression
Hypoxia-inducible factor-1α (HIF-1α) is one of the most potent angiogenic growth factors. It improves angiogenesis and tissue perfusion in ischemic skeletal muscle. In the present study, we tested the hypothesis that ischemic postconditioning is effective for salvaging ischemic skeletal muscle resulting from limb ischemia-reperfusion injury, and that the m
Braz J Med Biol Res. Publicado em: 25/07/2014
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15. Notch ligand Delta-like 1 promotes the metastasis of melanoma by enhancing tumor adhesion
Notch signaling plays a vital role in tumorigenicity and tumor progression by regulating proliferation, invasion, and the tumor microenvironment. Previous research by our group indicated that Notch ligand Delta-like 1 (Dll1) is involved in angiogenesis in melanoma, and we noticed that it took a longer time to trypsinize Dll1-expressing B16 melanoma cells tha
Braz J Med Biol Res. Publicado em: 28/03/2014
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16. Ethyl-p-methoxycinnamate isolated from kaempferia galanga inhibits inflammation by suppressing interleukin-1, tumor necrosis factor-α, and angiogenesis by blocking endothelial functions
OBJECTIVE: The present study aimed to investigate the mechanisms underlying the anti-inflammatory and anti-angiogenic effects of ethyl-p-methoxycinnamate isolated from Kaempferia galanga. METHODS: The anti-inflammatory effects of ethyl-p-methoxycinnamate were assessed using the cotton pellet granuloma assay in rats, whereby the levels of interleukin-1 and
Clinics. Publicado em: 2014-02
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17. Vascular endothelial growth factor and KIT expression in relation with microvascular density and tumor grade in supratentorial astrocytic tumors
PURPOSE: To evaluate the relationship between microvascular density and the expression of vascular endothelial growth factor (VEGF) and KIT as possible markers of angiogenic stimulus in astrocytic tumors and correlate it with histopathological grading. METHODS: We enrolled 99 surgical specimens of supratentorial astrocytic tumors for analysis of VEGF and KIT
Acta Cir. Bras.. Publicado em: 2013-01
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18. Análise de genes diferencialmente expressos nas vias de sinalização (Hedgehog e Wnt) em carcinomas basocelulares humanos
Hedgehog (HH) and Wingless-Int (Wnt) signaling pathway are related to the process of cellular proliferation, differentiation, angiogenesis, matrix remodeling and homeostasis of stem cells. Over the years, several mutations in HH signaling pathway have been identified, including the loss of function mutations in ptch1 and the gain of function mutations in smo
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 16/04/2012
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19. Potencial prognóstico da expressão de COX-2 e VEGF-C no adenocarcinoma colorretal de pacientes de um Hospital de referência do SUS no tratamento oncológico / Role of VEGF-C; COX-2; Colorectal; adenocarcinoma
BACKGROUND: Colorectal adenocarcinoma (CRA) is a worldwide distributed pathology, and lymph node metastasis is associated with a poor prognostic outcome. Angiogenesis and lymphangiogenesis are correlated with metastasis. Vascular endothelial growth factor C (VEGF-C) and Cyclooxygenase 2 (COX-2) are molecules directly involved in those processes. We investiga
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 23/03/2012
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20. Angiogênese, células-tronco neoplásicas CD34+ e sinvastatina em modelo de carcinogênese mamária induzida quimicamente / Angiogenesis, CD34+ cancer stem-cells and simvastatin in a chemically induced mammary carcinogenesis model
Breast cancer is the most common malignancy and the leading cause of death from cancer among females worldwide. Despite all the research and all the progress achieved so far, the morbidity and mortality due to this cancer remains high in patients at advanced stages. Recently, it was described a new model of carcinogenesis in which stem cells (SC) could be re
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 20/02/2012
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21. Kint3-4 promove apoptose e inibição da angiogênese no tumor sólido de Ehrlich
A proteína Kint3-4 (PKint3-4), codificadora da angiostatina, é reconhecida por sua potencialidade antiangiogênica. O presente estudo teve como objetivo avaliar o efeito da proteína Kint3-4 no crescimento do tumor sólido de Ehrlich. Para isso, foram analisados a curva de desenvolvimento tumoral, o índice apoptótico e a dosagem de hemoglobina, a fim de
Arquivo Brasileiro de Medicina Veterinária e Zootecnia. Publicado em: 2012-06
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22. Genotype analysis of the human endostatin variant p.D104N in benign and malignant adrenocortical tumors
OBJECTIVE: Endostatin is a potent endogenous inhibitor of angiogenesis. It is derived from the proteolytic cleavage of collagen XVIII, which is encoded by the COL18A1 gene. A polymorphic COL18A1 allele encoding the functional polymorphism p.D104N impairs the activity of endostatin, resulting in a decreased ability to inhibit angiogenesis. This polymorphism h
Clinics. Publicado em: 2012
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23. AvaliaÃÃo do potencial antitumoral e antiangiogÃnico de novos anÃlogos ftalimÃdicos da talidomida / EVALUATION OF THE ANTITUMOR AND ANTIANGIOGENIC POTENTIAL OF NEW FTHALIMIDES THALIDOMIDE ANALOGUES
The thalidomide was previously used to relieve gastric discomforts during pregnancy, and currently it is used for cancer treatment and inflammatory illnesses. Various phthalimides analogues of thalidomide have been researched for its antiangiogenic and immunemodulatory activity. In previous studies, these analogues showed absence of immunesuppressor activity
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 09/12/2011
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24. Estudo comparativo de radiofármacos para angiogênese na detecção de melanoma / Comparative study of angiogenesis radiopharmaceuticals for melanoma detection
Diagnóstico precoce e tratamento de melanoma, um tumor cutâneo com o pior prognóstico, é extremamente importante para um resultado clínico favorável. A biblioteca de peptídeos phage display é um recurso útil de triagem para identificar peptídeos bioativos que interagem com alvos em cânceres. O objetivo desse estudo foi a avaliação de dois traça
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 20/09/2011