Name: a matrigel-based tube formation assay to assess the vasculogenic activity of tumor cells
Uploaded: 2011-09-07T13:00:00
Description: Watch this Scientific Journal Video about A Matrigel-Based Tube Formation Assay to Assess the Vasculogenic Activity of Tumor Cells at JoVE.com

Este trabalho foi financiado pelo NCI R01 CA120659 (RS).

1. A Matrigel-Based Assay formação do tubo para avaliar a atividade vasculogênica de células tumorais <ol><li> Preparação de células tumorais e células endoteliais microvasculares: células de tumor cerebral, como U87, células de melanoma B16F1, câncer de mama MDA-MB-435, e as células do cólon HCT116 foram cultivadas em DMEM suplementado com 10% FBS e penicilina / estreptomicina (todos da Invitrogen ). Células endoteliais microvasculares linhagem humana de células endoteliais (HMVECs) foram cultivados em...

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Para que este ensaio para o sucesso, a qualidade do Matrigel deve ser testada primeiro. Uma pequena amostra pode ser obtido a partir de BD Bioscience de pré-executar o teste usando HMVECs. Produtos de lote diferente pode exibir qualidades diferentes em que alguns lotes não fornecem uma condição ideal para a formação do tubo. Em segundo lugar, as bolhas devem ser evitados quando uma alíquota de Matrigel é carregado em placas de 96 poços, porque as bolhas podem interromper a formação de túbulos. Se pequenas bo...

<table border="1"><tbody><tr><th> Nome do reagente </th><th> Companhia </th><th> Número de catálogo </th></tr><tr><td> DMEM </td><td> Invitrogen </td><td> 11995 </td></tr><tr><td> FBS </td><td> Invitrogen </td><td> 16000-044 </td></tr><tr><td> Do fator de crescimento reduzida Matrigel </td><td> BD Bioscience </td><td> 47743-720 </td></tr><tr><td> EBM2 kit </td><td> Lonza </td><td> CC-3156 </td></tr><tr><td> Nikon microscópio TS100 ECLIPSE </td><td> Nikon </td><td></td></tr></tbody></table>

a matrigel-based tube formation assay to assess the vasculogenic activity of tumor cells

Ao longo dos últimas décadas, um ensaio de formação do tubo utilizando fator de crescimento reduzida Matrigel foi tipicamente utilizados para demonstrar a atividade angiogênica das células endoteliais vasculares in vitro 1-5. No entanto, a evidência crescente recentemente demonstrou que este ensaio não se limita a testar o comportamento vascular para as células endoteliais. Em vez disso, ele também tem sido utilizado para testar a capacidade de um número de células tumorais para desenvolver um fenótipo vascular 6-8. Esta capacidade foi coerente com seu comportamento vasculogênica identificados em animais xenotransplanted, um processo conhecido como mimetismo vasculogênica (VM) 9. Há uma infinidade de provas que demonstrem que VM mediada por células tumorais desempenha um papel vital no desenvolvimento do tumor, independente de angiogênese da célula endotelial 6, 10-13. Por exemplo, as células tumorais foram encontradas para participar na formação do sangue perfundido canal, vascular em amostras de tecido de melanoma e glioblastoma pacientes 8, 10, 11. Aqui, descrevemos neste ensaio rede tubular como uma ferramenta útil na avaliação da atividade vasculogênica de células tumorais. Descobrimos que algumas linhagens de células tumorais, como o melanoma B16F1 células, as células U87 glioblastoma, e câncer de mama MDA-MB-435 células são capazes de formar túbulos vascular, mas algumas não, como câncer de cólon HCT116 células. Além disso, este fenótipo vascular é dependente número de células banhado no Matrigel. Portanto, este ensaio pode servir como poderoso utilitário para a tela o potencial vascular de uma variedade de tipos de células, incluindo células vasculares, as células tumorais, bem como outras células.

Watch this Scientific Journal Video about A Matrigel-Based Tube Formation Assay to Assess the Vasculogenic Activity of Tumor Cells at JoVE.com

A Matrigel-Based Tube Formation Assay to Assess the Vasculogenic Activity of Tumor Cells

A formação do tubo de ensaio é usado para avaliar a atividade vascular das células tumorais.

A Matrigel-Based Assay formação do tubo para avaliar a atividade vasculogênica de células tumorais

Over the past several decades, a tube formation assay using growth factor-reduced Matrigel has been typically employed to demonstrate the angiogenic ...

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