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Cryptosporidiosis is a major cause of severe diarrheal disease in infants from resource poor settings. The majority of infections are caused by the human-specific pathogen and absence of in vitro growth platforms has limited our understanding of host-pathogen interactions and development of effective treatments. To address this problem, we developed a stem cell-derived culture system for using human enterocytes differentiated under air-liquid interface (ALI) conditions. Human ALI cultures supported robust growth and complete development of in vitro including all life cycle stages. infection induced a strong interferon response from enterocytes, possibly driven, in part, by an endogenous dsRNA virus in the parasite. Prior infection with induced type III IFN secretion and consequently blunted infection with Rotavirus, including live attenuated vaccine strains. The development of hALI provides a platform for further studies on human-specific pathogens, including clinically important coinfections that may alter vaccine efficacy.
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http://dx.doi.org/10.1080/19490976.2023.2297897 | DOI Listing |
Mol Pharmacol
August 2025
Department of Pharmacology and Toxicology, Michigan State University, East Lansing, Michigan; "Nicholas V. Perricone, M.D.," Division of Dermatology, Department of Medicine, Michigan State University, East Lansing, Michigan. Electronic address:
Pirin is a nonheme iron-binding protein with a variety of proposed functions, including serving as a coactivator of p65 NFκB and quercetinase activity. We report here, failure to confirm pirin's primary proposed mechanism, binding of Fe(III)-pirin and p65. Analytical size exclusion chromatography and fluorescence polarization studies did not detect an interaction.
View Article and Find Full Text PDFInorg Chem
September 2025
Área Química Inorgánica, Departamento Estrella Campos, Facultad de Química, Universidad de la República, 11800 Montevideo, Uruguay.
Isostructural metal-organic frameworks (MOFs) built from oxidiacetate, oda, [LaCo(oda)(HO)]·14HO (), [PrCo(oda)(HO)]·14HO (), and [LaNi(oda)(HO)]·14HO () were synthesized and characterized to investigate their proton conduction properties. The presence of a hydrogen-bonding network formed by guest water molecules within the MOF channels was evidenced through crystallographic analysis and computational simulations. Powder conductivity measurements revealed a Grotthuss-type proton transport mechanism with consistent activation energies across all three compounds, but grain boundary effects limited overall performance.
View Article and Find Full Text PDFMol Plant
September 2025
College of Life Sciences, Capital Normal University, Beijing, 100048, China; Beijing Key Laboratory of Plant Gene Resources and Biotechnology for Carbon Reduction and Environmental Improvement, Beijing, 100048, China. Electronic address:
In the intricate molecular warfare between plants and pathogens, bacteria deploy sophisticated strategies to subvert host defenses. Xanthomonas oryzae pathogens, which cause devastating bacterial blight (BB) and bacterial leaf streak (BLS) in rice, utilize transcription activator-like effectors (TALEs) to manipulate host gene expression. Secreted by the type III secretion system and translocated by the type III translocon into host cells, TALEs directly bind specific DNA sequences (effector-binding elements, EBEs) in the 5'-terminal untranslated regions (UTRs) or within the promoter regions of host genes to activate transcription of these genes, including SWEETs sugar transporters and negative regulators of plant immunity (Xue et al.
View Article and Find Full Text PDFMol Plant Pathol
September 2025
Área de Genética, Facultad de Ciencias, Campus Teatinos s/n, Universidad de Málaga, Málaga, Spain.
The type III secretion system in Pseudomonas syringae complex pathogens delivers type III effectors (T3Es) into plant cells to manipulate host processes, enhance survival, and promote disease. While substantial research has focused on herbaceous pathogens, T3Es in strains infecting woody hosts are less understood. This study investigates the HopBL family of effectors in Pseudomonas savastanoi, a pathogen of woody plants.
View Article and Find Full Text PDFJACC Case Rep
September 2025
Department of Cardiology, Christian Medical College and Hospital, Vellore, India.
Background: Iatrogenic aortocoronary dissection (IACD) is a rare but potentially life-threatening complication of percutaneous coronary intervention or diagnostic angiography. The increasing complexity of interventions, especially cases involving chronic total occlusions, calcified lesions, and aggressive balloon dilation, has heightened the risk of IACD. It is often underreported, with an estimated incidence of 0.
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