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DOI: 10.3791/68124-v
Sachin S. Surwase*1,2,3, Xin Ming M. Zhou*3,4, Kathryn M. Luly1,2,3, Qingfeng Zhu5,6,7, Niki Talebian6, Robert A. Anders5,6,7,8,9, Jordan J. Green1,2,3,5,8,9,10,11,12, Stephany Y. Tzeng1,2,3, Joel C. Sunshine1,3,4,5,6,8,9
1Department of Biomedical Engineering,Johns Hopkins University, 2Translational Tissue Engineering Center,Johns Hopkins University, 3Johns Hopkins Translational ImmunoEngineering Center,Johns Hopkins University, 4Department of Dermatology,Johns Hopkins University, 5Department of Oncology,Johns Hopkins University, 6Department of Pathology,Johns Hopkins University, 7Convergence Institute,Sidney Kimmel Comprehensive Cancer Center Johns Hopkins University School of Medicine, 8Bloomberg Kimmel Institute for Cancer Immunotherapy, Sidney Kimmel Comprehensive Cancer Center,Johns Hopkins University School of Medicine, 9Sidney Kimmel Comprehensive Cancer Center,Johns Hopkins University School of Medicine, 10Institute for Nanobiotechnology,Johns Hopkins University, 11Departments of Neurosurgery and Ophthalmology,Johns Hopkins University School of Medicine, 12Departments of Materials Science & Engineering and Chemical & Biomolecular Engineering,Johns Hopkins University
Please note that some of the translations on this page are AI generated. Click here for the English version.
Este protocolo fornece um guia passo a passo para projetar um painel de anticorpos de imunofluorescência multiplex para imagens baseadas em código de barras de DNA de tecidos murinos de melanoma FFPE. Também descrevemos um pipeline de análise de imagem usando ferramentas de código aberto para gerar insights proteômicos espaciais sobre o microambiente imunológico do tumor de melanoma murino.
Apresentamos um protocolo para desenvolver e validar um painel de imunofluorescência multiplex para estudar tecidos FFPE de camundongos e demonstrar sua utilidade estudando amostras de um modelo de melanoma tratado com nanopartículas que fornecem DNA plasmático, codificando sinais imunológicos para reprogramar o microambiente tumoral. O campo estava faltando protocolos de imunofluorescência multiplex rigorosamente desenvolvidos e validados compatíveis com tecidos FFPE fixados em formalina de camundongo e embebidos em parafina.
A inclusão de parafina fixada em formalina preserva a morfologia do tecido a longo prazo, é fácil de manusear e armazenar e permite a criação de microarrays de tecido para visualização de várias amostras em uma única lâmina.
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