Expansion Microscopy Application for Calcium Protein Clustering Imaging in Cells and Brain Tissues.

Many biological studies require high-resolution imaging and subsequent analysis of cell organelles and molecules. Some membrane proteins form tight clusters, and this process is directly linked to their function. In most studies, these small protein clusters have been investigated by total internal reflection fluorescence (TIRF) microscopy, which enables imaging with high spatial resolution within 100 nm of the membrane surface.

Neuroprotective properties of anti-apoptotic BCL-2 proteins in 5xFAD mouse model of Alzheimer's disease.

Alzheimer's disease (AD) is the most common cause of dementia. An early feature of the AD pathology is the dysregulation of intracellular Ca signaling in neurons. In particular, increased Ca release from endoplasmic reticulum-located Ca channels, including inositol-1,4,5-trisphosphate type 1 receptors (IPR1) and ryanodine receptors type 2 (RyR2), have been extensively reported.