Ribosome Inactivating Proteins, RIPs, depurinate an invariant adenine from the 28S rRNA of eukaryotic ribosomes; they have evolved to near enzymatic perfection for this task. The N-glycosidase fold is conserved in plant and bacterial enzymes. RIPs can form complexes with cell surface recognition proteins that dramatically increase the cytotoxicity of the molecule.
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http://dx.doi.org/10.2174/1389557043403837 | DOI Listing |
Int J Mol Sci
January 2025
Frank Reidy Research Center for Bioelectrics, Old Dominion University, Norfolk, VA 23508, USA.
Gelonin is a ribosome-inactivating protein with extreme intracellular toxicity but poor permeation into cells. Targeted disruption of cell membranes to facilitate gelonin entry is explored for cancer and tissue ablation. We demonstrate a hundreds- to thousands-fold enhancement of gelonin cytotoxicity by pulsed electric fields in the T24, U-87, and CT26 cell lines.
View Article and Find Full Text PDFAnal Chem
January 2025
State Key Laboratory of Pathogen and Biosecurity, Academy of Military Medical Sciences, Beijing 100071, China.
Ricin toxin (RT) is a potential bioterrorism agent because of its high potency, extremely small lethal dose, ease of preparation, and notable stability. Therefore, a portable method is urgently required to efficiently detect and determine the presence of toxicity of RT and evaluate its potency for public health monitoring and counter-bioterrorism responses. Currently, enzyme-based assays for detecting RT mainly focus on its -glycosidase activity.
View Article and Find Full Text PDFJ Alzheimers Dis
January 2025
Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing, PR China.
Background: Our previous studies have established that the broad-spectrum anti-epileptic drug lamotrigine (LTG) confers protection against cognitive impairments, synapse and nerve cell damage, as well as characteristic neuropathologies in APP/PS1 mice, a mouse model of Alzheimer's disease (AD). However, the precise molecular mechanisms responsible for this protective effect induced by LTG remain largely elusive.
Objective: In this study, we aimed to investigate the mechanisms underlying the beneficial effects of LTG against AD.
J Med Entomol
January 2025
Department of Entomology, Plant Pathology and Weed Science, New Mexico State University, Las Cruces, NM 88003, USA.
In recent decades, the common and the tropical bed bugs have experienced a resurgence in many parts of the world. The evolution of insecticide resistance in bed bug populations is considered a significant factor contributing to this resurgence. We analyzed samples of Cimex lectularius L.
View Article and Find Full Text PDFVet Med Int
January 2025
Department of Science and Technology, Virology and Vaccine Research Program, Industrial Technology Development Institute, Bicutan, Taguig 1634, Philippines.
African swine fever (ASF), caused by African swine fever virus (ASFV), is a highly contagious disease with devastating effects on the global pig industry. This warrants the development of effective control strategies, such as vaccines. However, previously developed inactivated vaccines have proven ineffective, while live-attenuated vaccines carry inherent safety risks.
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