Effectiveness of Chitosan Nanoparticles as a Radioprotective Agent Against Gamma-Induced Changes in the Histology and Biochemistry of Parotid Glands

Cancer is one of the leading causes of death worldwide. Radiotherapy, as a crucial method for cancer treatment, effectively kills cancer cells but also damages normal tissues, especially sensitive tissues such as salivary glands. The oxidative stress and inflammatory reactions induced by radiotherapy are the primary causes of salivary gland dysfunc...

A New Chapter for RCSB Protein Data Bank Molecule of the Month in 2025

Academic Background The Protein Data Bank (PDB) is the most important global resource for three-dimensional structural data of biological molecules. Since its establishment in 1971, the PDB has become a vital tool in fields such as structural biology, biomedicine, bioenergy, and biotechnology. The PDB not only provides researchers with a vast amoun...

Hyperosmotic Stress Promotes the Nuclear Translocation of TFEB in Tubular Epithelial Cells Depending on Intracellular Ca2+ Signals via TRPML Channels

In recent years, autophagy, as a crucial intracellular degradation and recycling mechanism, has played a key role in maintaining cellular homeostasis and responding to various stress conditions. Particularly in renal proximal tubular epithelial cells, autophagy activity is essential for coping with common renal injuries such as ischemia, toxic dama...

Microbiome Dysbiosis, Neutrophil Recruitment and Mesenchymal Transition of Mesothelial Cells Promotes Peritoneal Metastasis of Colorectal Cancer

Background Introduction Colorectal cancer (CRC) is one of the most prevalent malignancies worldwide, with high incidence and mortality rates. According to statistics, approximately 1.87 million new cases of CRC were diagnosed globally in 2020, resulting in 915,000 deaths. Peritoneal metastasis (PM) is a common metastatic pathway of CRC, with about ...

Structural Insights into Spliceosome Fidelity: DHX35–GPATCH1-Mediated Rejection of Aberrant Splicing Substrates

Academic Background Introduction The spliceosome is a highly dynamic macromolecular complex responsible for the precise excision of introns from pre-mRNA. Although recent advances in cryo-electron microscopy (cryo-EM) have provided a comprehensive structural understanding of the stepwise assembly, catalytic splicing, and final disassembly of the sp...

Molecular Mechanism of the Arrestin-Biased Agonism of Neurotensin Receptor 1 by an Intracellular Allosteric Modulator

Academic Background G protein-coupled receptors (GPCRs) are the most abundant family of cell surface receptors in the human body and are also the most common targets of FDA-approved drugs. GPCRs play a crucial role in the treatment of various diseases, including pain, diabetes, cardiovascular diseases, and cancer. However, drug development targetin...