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Evaluation of Complement-Dependent Cytotoxicity Assays for Gene-Edited Pig-to-Human Xenotransplantation.
Xenotransplantation
January 2025
Institute of Organ Transplantation, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
Background: Gene-edited pigs for xenotransplantation usually contain one or more transgenes encoding human complement regulatory proteins (CRPs). Because of species differences, human CRP(s) expressed in gene-edited pigs may have difficulty inhibiting the activation of exogenous rabbit complement added to a complement-dependent cytotoxicity (CDC) assay. The use of human complement instead of rabbit complement in CDC experiments may more accurately reflect the actual regulatory activity of human CRP(s).
View Article and Find Full Text PDFGeneration of glucosylantimycins by heterologous expression of a promiscuous glycosyltransferase in a deepsea-derived .
Nat Prod Res
January 2025
Key Laboratory of Marine Drugs, Ministry of Education of China, School of Medicine and Pharmacy, Ocean University of China, Qingdao, China.
Antimycins are a class of depsipeptide compounds that exhibit diverse bioactivities. However, their potential clinical applications are hampered by high cell toxicities. Glycosylation usually has profound impacts on the physicochemical properties, bioactivities and toxicities of natural products.
View Article and Find Full Text PDFDiscovery of small molecules against porcine reproductive and respiratory syndrome virus replication by targeting NendoU activity.
J Virol
December 2024
Department of Animal Science, Institute for Systems Genomics, University of Connecticut, Storrs, Connecticut, USA.
Unlabelled: Porcine reproductive and respiratory syndrome (PRRS) remains a major threat to animal health and causes substantial economic losses worldwide. The nonstructural protein 11 (NSP11) of the causative agent, PRRS virus (PRRSV), contains a highly conserved nidoviral uridylate-specific endoribonuclease (NendoU) domain essential for viral replication and immune evasion. Targeting NSP11 offers a novel approach to antiviral intervention.
View Article and Find Full Text PDFA Phase 1 randomized trial of homologous and heterologous filovirus vaccines with a late booster dose.
NPJ Vaccines
December 2024
Department of Pediatrics, Emory University School of Medicine, Atlanta, GA, USA.
Filoviruses, including Ebola, Marburg, Sudan, and Taï Forest viruses, are zoonotic pathogens that can cause severe viral hemorrhagic fever and death. Developing vaccines that provide durable, broad immunity against multiple filoviruses is a high global health priority. In this Phase 1 trial, we enrolled 60 healthy U.
View Article and Find Full Text PDFMarine actinomycetes-derived angucyclines and angucyclinones with biosynthesis and activity--past 10 years (2014-2023).
Eur J Med Chem
February 2025
The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, 266000, China; Institute of Regenerative Medicine and Laboratory Technology Innovation, Qingdao University, Qingdao, Shandong, 266071, China. Electronic address:
Actinomycete bacteria derived from marine environments are a good source of natural products with diverse biological activities such as cytotoxicity, antiviral, and antimicrobial actions. This review summarizes 191 angucyclines and angucyclinones derived from marine actinomycetes reported in the literature from 2014 to 2023 and introduced the latest developments in actinomycete-silenced biosynthetic gene cluster activation, including heterologous recombination and in situ activation. The key role of redox post-modifications in the biosynthetic process of atypical angucyclines.
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