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Mgl2 cDC2s coordinate fungal allergic airway type 2, but not type 17, inflammation in mice.
Nat Commun
January 2025
Lydia Becker Institute of Immunology and Inflammation, University of Manchester, Manchester, United Kingdom.
Fungal spores are abundant in the environment and a major cause of asthma. Originally characterised as a type 2 inflammatory disease, allergic airway inflammation that underpins asthma can also involve type 17 inflammation, which can exacerbate disease causing failure of treatments tailored to inhibit type 2 factors. However, the mechanisms that determine the host response to fungi, which can trigger both type 2 and type 17 inflammation in allergic airway disease, remain unclear.
View Article and Find Full Text PDFCharacteristics of neutrophil chemotaxis in bottlenose dolphin (Tursiops truncatus).
Vet Immunol Immunopathol
January 2025
Laboratory of Preventive Veterinary Medicine and Animal Health, College of Bioresource Sciences, Nihon University, 1866 Kameino, Fujisawa-shi, Kanagawa-ken 252-0880, Japan. Electronic address:
Cetaceans have adapted to aquatic life by evolving various anatomic and physiologic traits, but biological defense mechanisms specific to aquatic mammals that protect against pathogenic microorganisms in the aquatic environment have not been elucidated. In this study, we investigated the migration of polymorphonuclear leukocytes in bottlenose dolphins in response to various chemotactic factors and compared the migration response with that of terrestrial animals such as cows and humans to characterize biological defense mechanisms unique to cetaceans. Bottlenose dolphin neutrophils showed strong chemotactic activity toward zymosan-activated serum and recombinant human interleukin-8 but no chemotaxis toward N-formyl-methionyl-leucyl-phenylalanine or leukotriene B at any concentration examined.
View Article and Find Full Text PDFTriple knockdown of , , and in T cells reduces CAR-T cell toxicity but preserves activity against solid tumors in mice.
Sci Transl Med
January 2025
Department of Interventional Oncology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China.
Chimeric antigen receptor (CAR)-T cell therapies have revolutionized the landscape of cancer treatment, in particular in the context of hematologic malignancies. However, for solid tumors that lack tumor-specific antigens, CAR-T cells can infiltrate and attack nonmalignant tissues expressing the CAR target antigen, leading to on-target, off-tumor toxicity. Severe on-target, off-tumor toxicities have been observed in clinical trials of CAR-T therapy for solid tumors, highlighting the need to address this issue.
View Article and Find Full Text PDFThe role of IFN-γ/CXCL10 axis in Mycoplasma pneumonia infection.
Sci Rep
January 2025
Department of Respiratory Medicine, Children's Hospital of Soochow University, Suzhou, China.
Mycoplasma pneumoniae caused lower respiratory tract infection in children and can exacerbate these infections through the production of various inflammatory factors, with chemokines playing a key role. However, the pathogenesis of this infection is complicated and thus has not been thoroughly studied. We clarified that cytokine expression levels were analyzed in both peripheral blood and bronchoalveolar lavage fluid (BALF), and in vitro assays were conducted using THP-1 macrophages.
View Article and Find Full Text PDFSingle-cell transcriptome atlas of peripheral immune features to Omicron breakthrough infection under booster vaccination strategies.
Front Immunol
January 2025
School of Public Health and Health Management, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, Shandong, China.
Introduction: The high percentage of Omicron breakthrough infection in vaccinees is an emerging problem, of which we have a limited understanding of the phenomenon.
Methods: We performed single-cell transcriptome coupled with T-cell/B-cell receptor (TCR/BCR) sequencing in 15 peripheral blood mononuclear cell (PBMC) samples from Omicron infection and naïve with booster vaccination.
Results: We found that after breakthrough infection, multiple cell clusters showed activation of the type I IFN pathway and widespread expression of Interferon-stimulated genes (ISGs); T and B lymphocytes exhibited antiviral and proinflammatory-related differentiation features with pseudo-time trajectories; and large TCR clonal expansions were concentrated in effector CD8 T cells, and clonal expansions of BCRs showed a preference for IGHV3.
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