“Pomegranate-like” lanthanide nanoprobes achieve record sensitivity for early cancer screening
Peer-Reviewed Publication
Updates every hour. Last Updated: 22-Jun-2026 03:16 ET (22-Jun-2026 07:16 GMT/UTC)
Dendritic mesoporous silica-lanthanide fluoride (DMS-CeF3:Tb) nanocomposites with a pomegranate-like architecture have been fabricated through a facile in situ enrichment strategy. The strong single-particle luminescence and long photoluminescence lifetime of DMS-CeF3:Tb nanoprobes enabled an ultrasensitive immunoassay for prostate specific antigen (PSA) with a detection limit of 41 fg mL-1, which represents a 976-fold improvement over a commercial PSA enzyme-linked immunosorbent assay kit. Validation with PCa serum samples revealed a strong correlation with the hospital’s electrochemiluminescence immunoassay, confirming the clinical applicability of the nanoprobes. Additionally, targeted imaging and in vitro detection of cervical cancer cells were realized utilizing biotinylated DMS-CeF3:Tb nanoprobes, enabling rapid cancer screening. These findings reveal the great potential of DMS-CeF3:Tb as an efficient nano-bioprobe for early cancer diagnosis.
At the cellular level, one major calcium signaling pathway is known as store-operated calcium entry, or SOCE. In this pathway, the endoplasmic reticulum—a major intracellular calcium store—acts like a sensor-and-supply system. When calcium levels inside the endoplasmic reticulum fall, the protein stromal interaction molecule 1 (STIM1) detects the change and activates ORAI channels in the plasma membrane. ORAI1 forms the pore of the calcium release-activated calcium channel, or CRAC channel, allowing calcium from outside the cell to enter the cytosol and trigger downstream signaling.
Understanding how this pathway works—and how it can be controlled when it doesn’t—is the focus of research led by Yubin Zhou, director of the Center for Translational Cancer Research at the Texas A&M Health Institute of Biosciences and Technology and professor in the Texas A&M Naresh K. Vashisht College of Medicine.
Davis Joseph was awarded the 2025 Ciechanover International Biology Award at the Sustainability through Science and Technology Summit 2025 (FLOGEN SIPS 2025) in Cebu, Philippines, for a breakthrough cancer discovery proposing organ-agnostic treatment strategies. His work identifies three universal cancer types based on dysfunctions in p14ARF/p53, DINO lncRNA, and MDM2 activity, and introduces a universal apoptosis network flowsheet built from the analysis of 174 scientific publications. The discovery supports a unified therapeutic framework for treating cancers regardless of the organ in which they originate and is presented as an example of Sustainable Medicine under the FLOGEN Sustainability Framework.
Most prostate cancers rely on male sex hormones, known as androgens, to grow. As a result, standard treatment focuses on lowering androgen levels or blocking their activity, but many tumors eventually become resistant and the disease returns.
In a study published in EMBO Molecular Medicine, an international research team led by Prof. Yosef Yarden of the Weizmann Institute of Science identifies a major cause of this resistance. A common genetic alteration found in roughly half of prostate cancers – the fusion of two genes – enables tumors to bypass their dependence on male hormones and instead rely on another steroid hormone: cortisol.
High-altitude exposure, characterized by hypobaric hypoxia, cold, and intense radiation, profoundly remodels the gut microbiota, triggering a cascade of physiological and pathological changes that extend far beyond the gastrointestinal tract. As millions travel to or reside in regions above 2500 meters, understanding this gut-centric axis has become critical for managing health risks. Hypoxia disrupts the delicate balance of the gut ecosystem, leading to dysbiosis, impaired barrier function, and increased intestinal permeability. This allows bacterial translocation and systemic inflammation, which underpin conditions like acute and chronic mountain sickness. Crucially, the gut microbiome acts as a dynamic environmental sensor; its altered production of metabolites—particularly short-chain fatty acids (SCFAs) and bile acids—directly influences host energy metabolism, immune responses, and acclimatization capacity. These changes are increasingly implicated in a spectrum of diseases, from metabolic disorders to colorectal cancer, positioning the gut as a central mediator of high-altitude health. This review synthesizes evidence from human and animal studies to elucidate how high-altitude stress reshapes the microbial landscape, explores the mechanisms linking microbiota to disease, and evaluates emerging microbiome-based interventions for promoting resilience.