RPPA Analysis of Mild Traumatic Brain Injuries Biomarkers

A growing number of studies indicate that repeated mild traumatic brain injuries (RmTBI) are associated with significant and lasting neurological alterations and an increased risk of developing neurodegenerative diseases. Advanced Magnetic Resonance Imaging and blood-based protein analysis not only can provide a reliable method for the clinical assessment and treatment of RmTBI but also valuable … Continued

Applications of Protein Microarrays for Biomarker Discovery.

In a recent paper published in the Journal of Neuroinflammation the immune response associated with elevated intermittent ocular hypertension has been evaluated.  An antigen microarray assay was performed with ten different antigens spotted on ONCYTE®  nitrocellulose film slides and used to probe serum from an intermittent ocular hypertension animal model. High Intraocular pressure is a main risk … Continued

Sensitive and Accurate Multi-Color RPPA Using Grace Bio-Labs ArrayCAM Protein Microarray System

Introduction Profiling sets of multiple protein markers and signaling pathways is becoming the standard method for biomarker discovery, accurate disease diagnosis, and monitoring of therapeutic response. Low-cost, high throughput multiplexed assay platforms that can provide specific, sensitive, and reproducible measurements, featuring reliable and robust assay controls along with easy to use methodologies will yield increased … Continued

Reverse Phase Protein Array Used to Elucidate Pro-inflammatory Signalomes Provides an Excellent Guide for RPPA Methodologies and Techniques

Application of Reverse-Phase Protein Arrays (RPPA) has primarily centered on the discovery and identification of cell signaling pathways involved in cancer development and progression. The RPPA approach and technology has found expanded utility in other disciplines such as in the study of inflammatory diseases.Recently Negm, et al. employed RPPA to study the signaling pathways downstream … Continued

Quantum Nanocrystal (QNC) Detection and ONCYTE AVID Porous Nitrocellulose Results in Improved RPPA Quantitation and Dynamic Range

ONCYTE porous nitrocellulose (PNC) film slides are a 3-D substrate very well suited for protein microarrays due to its high binding capacity and ability to retain proteins’ conformation and antigenic sites. PNC slides have proven extremely valuable for Reverse-Phase Protein Arrays (RPPAs) in the field of cancer research.In recent years, interest in further improving the … Continued

Sensitive Detection of Total Protein on RPPA using Fast Green

Reverse phase protein arrays (RPPA) are designed for sensitive quantitation of a target protein in a very small sample of tissue lysate, and multiplex analysis of many samples in one experiment. This technology holds great promise for the identification and analysis of critical biomarkers for disease states in patient samples and for high-throughput drug screening … Continued

A Systems Approach to Quantitative Multiplexed RPPA

A SYSTEMS APPROACH TO QUANTITATIVE MULTIPLEXED RPPA’S Presented by: Michael A. Shultz, PhD  RPPA Workshop in Kobe, Japan November, 2013 Porous nitrocellulose film (PNC) is the substrate of choice for RPPA largely because of its extraordinarily high protein binding capacity, which can exceed non-porous planar counterparts by 500X.

Optimizing Reverse Phase Protein Array Assays

Components of Reverse-Phase Protein Array (RPPA) methods and their impact on the overall performance of this assay were presented at the 2nd annual RPPA Conference in Edinburgh, Scotland on November 12.  Entire presentation can be viewed here.  View poster here. View here for information regarding our RPPA Assay System Selecting Surfaces, Reagents, and Detection Methods … Continued

Protein Staining Nitrocellulose using SYPRO® Ruby

Reverse phase protein arrays (RPPA) offer great promise for the identification and analysis of critical biomarkers for disease states in patient samples and for high-throughput drug screening using cultured cell systems.  Porous nitrocellulose (NC) film slides continue to be the preferred substrate for RPPA due to their high protein binding capacity and many functional advantages. … Continued

Multiplex Protein Arrays with Quantum Dots

Multiplexed protein arrays offer significant advantages for diagnostics over monoplex assays such as ELISA’s. For multiplex detection, fluorescence is the label of choice, offering rapid and sensitive detection and large dynamic range in addition to the ability to separate signals from multiple fluors.While porous nitrocellulose (NC) film slides are an excellent substrate for protein arrays … Continued