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http://dx.doi.org/10.1016/0005-2736(72)90240-4 | DOI Listing |
J Chem Ecol
January 2025
Department of Nematology, University of California Riverside, Riverside, CA, USA.
Plants produce defensive toxins to deter herbivores. In response, some specialized herbivores evolved resistance and even the capacity to sequester toxins, affecting interactions at higher trophic levels. Here, we test the hypothesis that potential natural enemies of specialized herbivores are differentially affected by plant toxins depending on their level of adaptation to the plant-herbivore system.
View Article and Find Full Text PDFTransl Vis Sci Technol
January 2025
UCL Institute of Ophthalmology, University College London, London, UK.
Purpose: A human model able to simulate the manifestation of corneal endothelium decompensation could be advantageous for wound healing and future cell therapy assessment. The study aimed to establish an ex vivo human cornea endothelium wound model where endothelium function can be evaluated by measuring corneal thickness changes.
Methods: The human cornea was maintained in an artificial anterior chamber, with a continuous culture medium infusion system designed to sustain corneal endothelium and epithelium simultaneously.
Invest Ophthalmol Vis Sci
January 2025
Department of Ophthalmology, National Taiwan University Hospital, Taipei, Taiwan.
Purpose: To investigate the effect of Rho-associated protein kinase (ROCK) inhibitor Y27632 on bioenergetic capacity and resilience of corneal endothelial cells (CECs) under metabolic stress.
Methods: Bovine CECs (BCECs) were treated with Y27632 and subjected to bioenergetic profiling using the Seahorse XFp Analyzer. The effects on adenosine triphosphate (ATP) production through oxidative phosphorylation and glycolysis were measured.
J Physiol Sci
January 2025
Department of Pharmaceutical Physiology, Faculty of Pharmaceutical Sciences, University of Toyama, 930-0194, Toyama, Japan.
Cardiac glycosides, known as inhibitors of Na,K-ATPase, have anti-cancer effects such as suppression of cancer cell proliferation and induction of cancer cell death. Here, we examined the signaling pathway elicited by cardiac glycosides in the human hepatocellular carcinoma HepG2 cells and human epidermoid carcinoma KB cells. Three kinds of cardiac glycosides (ouabain, oleandrin, and digoxin) inhibited the cancer cell proliferation and decreased the expression level of thyroid adenoma-associated protein (THADA).
View Article and Find Full Text PDFJ Membr Biol
February 2025
Laboratório de Bioquímica Celular, Universidade Federal de São João del-Rei (UFSJ), Divinópolis, Brazil.
Cancer is a leading cause of death worldwide and its treatment is hampered by the lack of specificity and side effects of current drugs. Cardiotonic steroids (CTS) interact with Na/K-ATPase (NKA) and induce antineoplastic effects, but their narrow therapeutic window is key limiting factor. The synthesis of digitoxigenin derivatives with glycosidic unit modifications is a promising approach to develop more selective and effective antitumor agents.
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