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The Calicophoron daubneyi genome provides new insight into mechanisms of feeding, eggshell synthesis and parasite-microbe interactions.
BMC Biol
January 2025
School of Biological Sciences, Queen's University Belfast, 19 Chlorine Gardens, Belfast, Northern Ireland, UK.
Background: The rumen fluke, Calicophoron daubneyi, is the major paramphistome species infecting ruminants within Europe. Adult flukes reside within the rumen where they are in direct contact with a unique collection of microorganisms. Here, we report a 1.
View Article and Find Full Text PDFSibanin, a novel black fly-derived Kunitz protease inhibitor, prevents thrombus formation in mice by anticoagulation-antiplatelet duality.
Int J Biol Macromol
January 2025
School of Basic Medical Sciences, Kunming Medical University, Kunming 650500, Yunnan, China. Electronic address:
Most Kunitz inhibitors exhibit serine protease inhibitory activity, but limited information is available on the regulation of platelet function. Herein, we report the purification and characterization of a novel single Kunitz domain inhibitor (Sibanin) from the salivary glands of the black fly Simulium bannaense. Recombinant Sibanin prolonged activated partial thromboplastin time and prothrombin time, and exhibited high-affinity binding to FXa and elastase with a KD of 5.
View Article and Find Full Text PDFmosGILT antibodies interfere with Plasmodium sporogony in Anopheles gambiae.
Nat Commun
January 2025
Section of Infectious Diseases, Department of Internal Medicine, Yale University School of Medicine, New Haven, CT, 06520, USA.
Plasmodium, the causative agents of malaria, are obtained by mosquitoes from an infected human. Following Plasmodium acquisition by Anopheles gambiae, mosquito gamma-interferon-inducible lysosomal thiol reductase (mosGILT) plays a critical role in its subsequent sporogony in the mosquito. A critical location for this development is the midgut, a tissue we show expresses mosGILT.
View Article and Find Full Text PDFThe steroid hormone 20-hydroxyecdysone induces lipophagy via the brain-adipose tissue axis by promoting the adipokinetic hormone pathway.
J Biol Chem
January 2025
Shandong Provincial Key Laboratory of Animal Cells and Developmental Biology, School of Life Sciences, Shandong University, China. Electronic address:
Lipophagy is a way to degrade lipids; however, the molecular mechanisms are not fully understood. Using the holometabolous lepidopteran insect Helicoverpa armigera, cotton bollworm, as a model, we revealed that the larval fat body undergoes lipophagy during metamorphosis, and lipophagy is essential for metamorphosis. The steroid hormone 20-hydroxyecdysone (20E) induced lipophagy by promoting the expression of the peptide hormone adipokinetic hormone (AKH, the insect analog of glucagon) and the adipokinetic hormone receptor (AKHR).
View Article and Find Full Text PDFNano-TiO impairs the health of crabs Charybdis japonica under warming conditions through waterborne and dietary exposures.
J Hazard Mater
January 2025
International Research Center for Marine Biosciences, Shanghai Ocean University, Ministry of Science and Technology, College of Fisheries and Life Science, Shanghai 201306, China; Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai 201306, China. Electronic address:
The widespread use of nano titanium dioxide (nano-TiO₂) poses ecological risks to marine ecosystems, especially when combined with ocean warming. However, most previous studies have only examined water-related exposures, leaving a gap in research on the impact of food transfer on organisms. In this work, the harmful impacts of nano-TiO on the Japanese swimming crab Charybdis japonica were studied through three scenarios: direct exposure (DE) of the crabs to warming and nano-TiO, indirect exposure (IE) via consumption of thick-shelled mussels Mytilus coruscus exposed to the same conditions, and combined exposure (CE), where crabs were directly subjected to warming and nano-TiO while feeding affected mussels.
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