Cancer Biology

Categories

    Protocols in Current Issue
    Colorimetric RhoB GTPase Activity Assay
    Authors:  Kossay Zaoui and Stephanie Duhamel, date: 05/05/2020, view: 815, Q&A: 0
    [Abstract] The Ras homologous protein (Rho) GTPase subfamily, including RhoA, RhoB, and RhoC are small molecules (~21 kDa) that act as molecular switches in a wide range of signaling pathways to orchestrate biological processes associated with both physiological and tumorigenic cellular states. The Rho GTPases are crucial regulators of actin cytoskeleton ...
    Identification of Target Protein for Bio-active Small Molecule Using Photo-cross Linked Beads and MALDI-TOF Mass Spectrometry
    [Abstract] Development of methods for protein identification is one of the important aspects of proteomics. Here, we report a protocol for the preparation of compound conjugated beads by photo-crosslinking, affinity purification, gel electrophoresis, and highly sensitive mass spectrometric assay for drug-target identification. Although there are several ...
    Measurement of ATPase Activity of Valosin-containing Protein/p97
    [Abstract] Valosin-containing protein (VCP; also known as p97) is a type II ATPase regulating several cellular processes. Using proteomic techniques, we identified a chemical compound that binds to the D1 ATPase domain of VCP. The protocol described here was to study the effect of the compound on ATPase activity in vitro of purified VCP protein. ...
    cDNA Display Mediated Immuno-PCR (cD-IPCR): A Novel PCR-based Antigen Detection Method
    Authors:  Chathuni Jayathilake, Takuya Terai and Naoto Nemoto, date: 12/20/2019, view: 1296, Q&A: 0
    [Abstract] Immuno-PCR (IPCR) is a powerful method in antigen detection where a PCR-amplifiable DNA reporter is conjugated to a specific antibody or an aptamer for the target molecule. In the development and application of IPCR, successful conjugation of a protein (an antibody) with a reporter DNA becomes challenging. To address this issue, we recently ...
    Isolation and Quantification of Metabolite Levels in Murine Tumor Interstitial Fluid by LC/MS
    Authors:  Mark R Sullivan, Caroline A Lewis and Alexander Muir, date: 11/20/2019, view: 1848, Q&A: 0
    [Abstract] Cancer is a disease characterized by altered metabolism, and there has been renewed interest in understanding the metabolism of tumors. Even though nutrient availability is a critical determinant of tumor metabolism, there has been little systematic study of the nutrients directly available to cancer cells in the tumor microenvironment. Previous ...
    Measuring Small-molecule Inhibition of Protein Interactions in Live Cells Using FLIM-FRET
    Authors:  James M. Pemberton, Qian Liu and David W. Andrews, date: 10/20/2019, view: 2368, Q&A: 0
    [Abstract] This protocol was designed to quantitatively measure small-molecule displacement of proteins in live mammalian cells using fluorescence lifetime imaging microscopy–Förster resonance energy transfer (FLIM-FRET). Tumour cell survival is often dependent on anti-apoptotic proteins, which bind to and inhibit pro-apoptotic proteins, thus preventing ...
    Conjugation of Fab’ Fragments with Fluorescent Dyes for Single-molecule Tracking on Live Cells
    Authors:  I-Ting Teng, Xiangning Bu and Inhee Chung, date: 09/20/2019, view: 1385, Q&A: 0
    [Abstract] Our understanding of the regulation and functions of cell-surface proteins has progressed rapidly with the advent of advanced optical imaging techniques. In particular, single-molecule tracking (SMT) using bright fluorophores conjugated to antibodies and wide-field microscopy methods such as total internal reflection fluorescence microscopy have ...
    Evaluation of Genotoxicity by Micronucleus Assay in vitro and by Allium cepa Test in vivo
    Authors:  Christina N. Banti and Sotiris K. Hadjikakou, date: 07/20/2019, view: 2260, Q&A: 0
    [Abstract] The in vitro and in vivo genotoxicity of new metallodrugs either as Small Bioactive Molecules (SBAMs) or Conjugates of Metals with Drugs (CoMeDs) is evaluated by the micronucleus test and the Allium cepa assay, respectively. Fetal lung fibroblast cells (MRC-5), normal human corneal epithelial cells (HCEC) and ...
    Fluorescence HPLC Analysis of the in-vivo Activity of Glucosylceramide Synthase
    Authors:  Kartik R. Roy, Sachin K. Khiste, Zhijun Liu and Yong-Yu Liu, date: 06/20/2019, view: 2061, Q&A: 0
    [Abstract] Almost all functions of cells or organs rely on the activities of cellular enzymes. Indeed, the in-vivo activities that directly represent the cellular effects of enzymes in live organs are critical importance to appreciate the roles enzymes play in modulating physiological or pathological processes, although assessments of such in-vivo ...
    Visualization of Macropinocytosis in Prostate Fibroblasts
    Authors:  Rajeev Mishra and Neil A. Bhowmick, date: 05/20/2019, view: 2705, Q&A: 0
    [Abstract] Macropinocytosis has emerged as an important mechanism for non-selective route to internalize extracellular fluids and dissolved molecules in eukaryotic cell. As fundamental cellular behavior, macropinocytosis plays specific and distinct roles in many physiological and pathological processes, such as nutrients uptake, antigen presentation, ...



    We use cookies on this site to enhance your user experience. By using our website, you are agreeing to allow the storage of cookies on your computer.