The ubiquitin-proteasome system (UPS) is a well-characterized protein degradation system in cells whose dysfunction is implicated in many diseases, including neurodegeneration and cancer^1,2. Major UPS components are ubiquitin (Ub), Ub ligases, Ub hydrolases (deubiquitinases [DUBs]), and the proteasome.

As mentioned in a previous post the DAX Biochips from AIM Biotech are an innovative and versatile microfluidic platform, allowing researchers to more easily develop 3D cell culture models, to work as close as possible to what occurs in the human body, but under in-vitro conditions.

Due to its innovative structure (as seen in this general AIM Chips flyer), a broad range of applications have already been validated on this model (Cellular Migration-Invasion Analysis / Angiogenesis studies / Metstasis Modeling System), but what’s new is that now Immunotherapy and T-Cell Therapy studies can be performed on this technology.

Small GTP-binding proteins such as Rho and Ras GTPase family members are involved in regulating cell signalling pathways and impact a wide range of cellular processes, functions, and morphology. In this post, you’ll discover two types of Small G-protein Activation Assays to easily measure the GTP-bound form of your protein of interest, as well as some tips for choosing between both solutions and finding the assays that fit best with your cell signalling experiments.

Cell-Based ELISA tests now enable precise measurement of the phosphorylation status or expression profiles of target proteins (biomarkers) in whole cells. In this post, a review of high performing cell-based assays is made.