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Advanced Cell Diagnostics, Inc

6 ARTICLES PUBLISHED IN JoVE

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Medicine

Programmed Electrical Stimulation in Mice
Na Li 1, Xander H.T Wehrens 1,2
1Department of Molecular Physiology and Biophysics, Baylor College of Medicine (BCM), 2The Margaret M. and Albert B. Alkek Department of Medicine, Baylor College of Medicine (BCM)

Programmed electrical stimulation provides the ability to determine conduction properties of the heart, and the possibility to induce and terminate cardiac arrhythmias using various pacing protocols. Using a transvenous catheter, intracardiac electrogram recordings can be obtained in mice following programmed electrical stimulation protocols to identify arrhythmogenic substrates.

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Medicine

RNAscope for In situ Detection of Transcriptionally Active Human Papillomavirus in Head and Neck Squamous Cell Carcinoma
Hongwei Wang 1, Mindy Xiao-Ming Wang 1, Nan Su 1, Li-chong Wang 1, Xingyong Wu 1, Son Bui 1, Allissa Nielsen 1, Hong-Thuy Vo 1, Nina Nguyen 1, Yuling Luo 1, Xiao-Jun Ma 1
1Advanced Cell Diagnostics, Inc.

The presence of high-risk HPV in head and neck tumor tissue is associated with favorable outcomes. The recently developed RNA in situ hybridization technique called RNAscope allows direct visualization of HPV E6/E7 mRNA in FFPE tissue sections.

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Biology

Live Cell Imaging of Primary Rat Neonatal Cardiomyocytes Following Adenoviral and Lentiviral Transduction Using Confocal Spinning Disk Microscopy
Takashi Sakurai 1,2, Anthony Lanahan 2, Melissa J. Woolls 2, Na Li 2, Daniela Tirziu 2, Masahiro Murakami 2
1Max-Planck-Institute for Molecular Biomedicine and Institute of Cell Biology, 2Department of Internal Medicine, Yale Cardiovascular Research Center and Section of Cardiovascular Medicine

This protocol describes a method of live cell imaging using primary rat neonatal cardiomyocytes following lentiviral and adenoviral transduction using confocal spinning disk microscopy. This enables detailed observations of cellular processes in living cardiomyocytes.

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Biology

Visualizing Genetic Variants, Short Targets, and Point Mutations in the Morphological Tissue Context with an RNA In Situ Hybridization Assay
Courtney M. Anderson 1, Annelies Laeremans 1, Xiao-Ming Mindy Wang 1, Xingyong Wu 1, Bingqing Zhang 1, Emerald Doolittle 1, Jeffrey Kim 1, Na Li 1, Helly Xiao Yan Pimentel 1, Emily Park 1, Xiao-Jun Ma 1
1Advanced Cell Diagnostics, Inc

Here, we describe an in situ hybridization assay which enables sensitive and specific detection of sequences as short as 50 nucleotides with single-nucleotide resolution at the single-cell level. The assay, which can be performed manually or automatically, can enable visualization of splice variants, short sequences, and mutations within the tissue context.

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Cancer Research

Preparation of Mitochondria from Ovarian Cancer Tissues and Control Ovarian Tissues for Quantitative Proteomics Analysis
Xianquan Zhan 1,2,3,4, Huanni Li 5, Shehua Qian 1,2,3, Xiaohan Zhan 1,2,3, Na Li 1,2,3
1Key Laboratory of Cancer Proteomics of Chinese Ministry of Health, Xiangya Hospital, Central South University, 2Hunan Engineering Laboratory for Structural Biology and Drug Design, Xiangya Hospital, Central South University, 3State Local Joint Engineering Laboratory for Anticancer Drugs, Xiangya Hospital, Central South University, 4National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, 5Department of Obstetrics and Gynecology, Xiangya Hospital, Central South University

This article presents a protocol of differential-speed centrifugation in combination with density gradient centrifugation to separate mitochondria from human ovarian cancer tissues and control ovarian tissues for quantitative proteomics analysis, resulting in a high-quality mitochondrial sample and high-throughput and high-reproducibility quantitative proteomics analysis of a human ovarian cancer mitochondrial proteome.

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Cancer Research

Analysis of Side Population in Solid Tumor Cell Lines
Xiaoli Dong 1, Yingying Wei 1, Tao Xu 1, Xiaoyue Tan 1,2,3, Na Li 1,2,3
1School of Medicine, Nankai University, 2Tianjin Key Laboratory of Tumour Microenvironment and Neurovascular Regulation, 3Collaborative Innovation Center for Biotherapy, Nankai University

A convenient, fast, and cost-effective method to measure the proportion of side population cells in solid tumor cell lines is presented.

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