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Effects of initial periodontal therapy on the formation of neutrophil extracellular traps in gingival crevicular fluid in patients with severe periodontitis.
Hua Xi Kou Qiang Yi Xue Za Zhi
February 2025
Dept. of Periodontology, The Affiliated Stomatological Hospital of Nanjing Medical University & State Key Laboratory Cultivation Base of Research, Prevention and Treatment for Oral Diseases & Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing 210029, China.
Objectives: This study aimed to observe the effects of initial periodontal therapy on the level of neutrophil extracellular traps (NETs) in gingival crevicular fluid (GCF) of patients with severe periodontitis and to analyze the factors related to the formation of NETs.
Methods: Thirty-one patients with stage Ⅲ-Ⅳ periodontitis were recruited. Clinical periodontal parameters, including plaque index (PLI), gingival index (GI), probing depth (PD), and clinical atta-chment loss (CAL), were recorded before and 6-8 weeks after initial periodontal therapy.
CD133PD-L1 cancer cells confer resistance to adoptively transferred engineered macrophage-based therapy in melanoma.
Nat Commun
January 2025
School of Pharmacy, Key Laboratory of Smart Drug Delivery Ministry of Education, State Key Laboratory of Molecular Engineering of Polymers, Fudan University, Shanghai, 201203, China.
Adoptive transfer of genetically or nanoparticle-engineered macrophages represents a promising cell therapy modality for treatment of solid tumor. However, the therapeutic efficacy is suboptimal without achieving a complete tumor regression, and the underlying mechanism remains elusive. Here, we discover a subpopulation of cancer cells with upregulated CD133 and programmed death-ligand 1 in mouse melanoma, resistant to the phagocytosis by the transferred macrophages.
View Article and Find Full Text PDFGingipains protect Porphyromonas gingivalis from macrophage-mediated phagocytic clearance.
PLoS Pathog
January 2025
School of Clinical Dentistry, University of Sheffield, Sheffield, United Kingdom.
Porphyromonas gingivalis (Pg) is a keystone pathogen in periodontitis, a highly prevalent disease manifested by chronic inflammation of the periodontium, alveolar bone resorption and tooth loss. During periodontitis pathobionts such as Pg can enter the bloodstream and growing evidence correlates periodontitis with increased risk of cardiovascular and neurodegenerative diseases. However, the mechanism by which immune cells respond to Pg challenge in vivo remains elusive.
View Article and Find Full Text PDFSubstrate curvature influences cytoskeletal rearrangement and modulates macrophage phenotype.
Front Immunol
January 2025
Department of Biomedical Engineering, University at Buffalo, Buffalo, NY, United States.
Introduction: Inflammation is a vital immune response, tightly orchestrated through both biochemical and biophysical cues. Dysregulated inflammation contributes to chronic diseases, highlighting the need for novel therapies that modulate immune responses with minimal side effects. While several biochemical pathways of inflammation are well understood, the influence of physical properties such as substrate curvature on immune cell behavior remains underexplored.
View Article and Find Full Text PDFSingle-cell mitophagy patterns within the tumor microenvironment modulate intercellular communication, impacting the progression and prognosis of hepatocellular carcinoma.
Front Immunol
January 2025
Department of Hepatobiliary Surgery, Daping Hospital, Army Medical University, Chongqing, China.
Background: Hepatocellular carcinoma (HCC) is a common malignant tumor of the digestive system with a high incidence that seriously threatens patients' lives and health. However, with the rise and application of new treatments, such as immunotherapy, there are still some restrictions in the treatment and diagnosis of HCC, and the therapeutic effects on patients are not ideal.
Methods: Two single-cell RNA sequencing (scRNA-seq) datasets from HCC patients, encompassing 25,189 cells, were analyzed in the study.
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