Image Chifei Sun Senior Histotechnologist with GSK R&D Chifei is a senior histotechnologist with GSK R&D. He has broad knowledge and technical skills in routine histology, immunohistochemistry, multiplex immunofluorescence, digital pathology and quantitative image analysis. His work scopes from target validation, animal model characterization to clinical biomarker assay development and validation. He has a master’s degree in neurobiology from Fudan University and a bachelor’s degree in biology from Shandong University in China. Published Pieces by Chifei Sun Phenotyping the Tumor Microenvironment Using DNA Barcoded Multiplex TechnologyWebinairesUnderstanding the tumor microenvironment (TME) is essential for the development of effective treatments for cancer patients. Traditional multiplex IHC methods offer limited understanding of the complex TME. This is partially due to technical limitations of chromogenic dyes and fluorescent detection systems. Phenotyping the Tumor Microenvironment Using DNA Barcoded Multiplex TechnologyWebinairesUnderstanding the tumor microenvironment (TME) is essential for the development of effective treatments for cancer patients. Traditional multiplex IHC methods offer limited understanding of the complex TME. This is partially due to technical limitations of chromogenic dyes and fluorescent detection systems.