Inhibition of Endoplasmic Reticulum Stress-Mediated Autophagy Enhances the Anticancer Effect of Iodine-125 Seed Radiation on Esophageal Squamous Cell Carcinoma.

Autophagy has been reported to play a radioresistance role in high-dose-rate irradiation. However, its mechanisms and roles in continuous low-dose-rate (CLDR) irradiation have not been clearly understood. Iodine-125 (I-125) seed brachytherapy is a modality of CLDR irradiation and has been used in the treatment of various cancers.

Iodine‑125 seed radiation induces ROS‑mediated apoptosis, autophagy and paraptosis in human esophageal squamous cell carcinoma cells.

Iodine‑125 (125I) seed brachytherapy has been proven to be a safe and effective treatment for advanced esophageal cancer; however, the mechanisms underlying its actions are not completely understood. In the present study, the anti‑cancer mechanisms of 125I seed radiation in human esophageal squamous cell carcinoma (ESCC) cells (Eca‑109 and KYSE‑150) were determined, with a particular focus on the mode of cell death. The results showed that 125I seed radiation significantly inhibited cell proliferation, and induced DNA damage and G2/M cell cycle arrest in both ESCC cell lines.

Thyroid cancer MR molecular imaging via SHP2-targeted nanoparticles.

Background: Molecular imaging has generated a great demand to develop targeted contrast agents for MR imaging.

Materials And Methods: In this study, we synthesized Src homology 2-containing phosphotyrosine phosphatase 2 (SHP2)-targeted and polylactic-co-glycolic acid--based nanoparticles (NPs), which encapsulated perfluoropentane and being chelated with gadolinium (Gd) as an efficient molecular probe for targeting MR imaging on thyroid carcinoma.

Results: These NPs displayed practical properties and favorable biocompatibility in vitro.

A New Fully Covered Irradiation Stent Versus a Partially Covered Irradiation Stent for Unresectable Malignant Dysphagia: A Single-Center Experience.

Purpose: To assess the efficacy and safety of a newly developed fully covered irradiation stent (FCIS) compared with a partially covered irradiation stent (PCIS) in patients with unresectable malignant dysphagia.

Materials And Methods: Data of 195 patients [158 (81.0%) males, median age of 75 years (range 49-89 years)] who underwent FCIS or PCIS placement for unresectable malignant dysphagia from January 2012 to November 2017 were retrospectively analyzed.