Results 91 to 100 of about 156,491 (330)

Synovial Fluid‐derived Micrococcus Luteus G18 Exacerbates Osteoarthritis Progression by Promoting Chondrocyte Degradation via TLR2/JNK/AP‐1 Signaling Pathway

Advanced Science, EarlyView.
Traditionally considered sterile, the articular cavity is now recognized to harbor microbial communities influencing osteoarthritis (OA). Integrating 16S rRNA sequencing and culturomics, Micrococcus luteus is enriched in advanced OA. Notably, M. luteus G18 exacerbates cartilage degeneration via TLR2/JNK/AP‐1‐mediated ECM disruption, revealing intra ...
Tingtao Chen, Qingwei Zeng, Tangchang Xu, Xinyue Qi, Kaiyi Li, Jing Wei, Liang Hao   +6 more
wiley   +1 more source

Recognition of TLR2 N-glycans: critical role in ArtinM immunomodulatory activity. [PDF]

PLoS ONE, 2014
TLR2 plays a critical role in the protection against Paracoccidioides brasiliensis conferred by ArtinM administration. ArtinM, a D-mannose-binding lectin from Artocarpus heterophyllus, induces IL-12 production in macrophages and dendritic cells, which ...
Vania Sammartino Mariano, Andre Luiz Zorzetto-Fernandes, Thiago Aparecido da Silva, Luciana Pereira Ruas, Lilian L Nohara, Igor Correia de Almeida, Maria Cristina Roque-Barreira   +6 more
doaj   +1 more source

Epigenetic regulation of TLR2‐mediated periapical inflammation

International Endodontic Journal, 2020
AbstractAimTo determine the methylation pattern of TLR2 gene promoter and its association with the transcriptional regulation of periapical inflammatory and angiogenic responses in symptomatic and asymptomatic forms of apical periodontitis.MethodologyIn this cross‐sectional study, apical lesions were obtained from volunteers with asymptomatic apical ...
A. Fernández, P. Veloso, J. Astorga, C. Rodríguez, V.A. Torres, M. Valdés, M. Garrido, P.J. Gebicke‐Haerter, M. Hernández   +8 more
openaire   +3 more sources

TLR2-mediated neutrophil depletion exacerbates bacterial sepsis [PDF]

Proceedings of the National Academy of Sciences, 2009
The host antimicrobial defense response is initiated by the innate immune system, the most ancient of the 2 limbs of the immune system. The innate immune system is activated as soon as a pathogen crosses the host external defense barriers, lasts for a few hours, and is aimed at the elimination of the invading microorganism.
Thierry, Roger, Thierry, Calandra
openaire   +2 more sources

Amodiaquine Enhances Anti‐Melanoma Efficacy of Attenuated Salmonella via Targeting Glutathione Reductase in Neutrophils

Advanced Science, EarlyView.
This study shows that Salmonella VNP20009 recruits pro‐tumor neutrophils that reduce its anticancer efficacy. Combining VNP with amodiaquine selectively eliminates these neutrophils by targeting glutathione reductase. A GR‐shRNA‐loaded VNP strain was further developed, demonstrating an innovative strategy integrating drug repurposing with synthetic ...
Wanfa Dong, Chunyuan Zhao, Chengxi Li, Lin Weng, Zehan Ji, Peiqi Li, Jiqiang Lu, Danni Liu, Anni Yu, Tianyi Jiang, Shaokai Huang, Heng Liu, Xiao Chen, Zichun Hua   +13 more
wiley   +1 more source

Decoding Triphenotypic Neutrophils in Cervical Cancer Evolution and Targeting SPP1+/GBP1+/ELOVL5+ Tumor‐Associated Neutrophils to Sensitize Immunotherapy

Advanced Science, EarlyView.
The functional schematic diagram of tumor associated neutrophils. Abstract Enhancing cervical cancer (CC) immunotherapy requires deciphering the heterogeneous tumor immune microenvironment (TIME), particularly neutrophil phenotypic dynamics. Here, 1) we collected 543 CC cases to find that patients with elevated neutrophil levels have a higher incidence
Xingyu Chang, Xinyu Qu, Tingting Ren, Tong Wu, Weiyong Gu, Jingxin Ding, Keqin Hua, Junjun Qiu   +7 more
wiley   +1 more source

Crosstalk between NOD2 and TLR2 suppresses the development of TLR2-mediated experimental colitis

Journal of Clinical Biochemistry and Nutrition
Nucleotide-binding oligomerization domain 2 (NOD2) is an intracellular sensor for muramyl dipeptide (MDP), a degradation product of bacterial cell wall peptidoglycan (PGN). PGN stimulates cell-surface Toll-like receptor 2 (TLR2) independently of NOD2, indicating the presence of crosstalk between extracellular TLR2 and intracellular NOD2 upon exposure ...
Okai, Natsuki, Masuta, Yasuhiro, Otsuka, Yasuo, Hara, Akane, Masaki, Sho, Kamata, Ken, Minaga, Kosuke, Honjo, Hajime, Kudo, Masatoshi, Watanabe, Tomohiro   +9 more
openaire   +2 more sources

Contemporary views on inflammatory pain mechanisms: TRPing over innate and microglial pathways. [PDF]

, 2016
Tissue injury, whether by trauma, surgical intervention, metabolic dysfunction, ischemia, or infection, evokes a complex cellular response (inflammation) that is associated with painful hyperalgesic states.
Guan, Zhonghui, Hellman, Judith, Schumacher, Mark   +2 more
core   +2 more sources

Senescent Synovial Intimal Fibroblasts Aggravate Osteoarthritis by Regulating Macrophage Polarization and Chondrocyte Phenotype Through ANGPTL4‐α5β1 Axis

Advanced Science, EarlyView.
Senescent synovial intimal fibroblasts (SIF) are identified as key drivers of osteoarthritis. They promote M1 macrophage polarization and cartilage degeneration via the ANGPTL4–α5β1 axis, regulated by transcription factors EGR1 and ATF3. Pharmacological inhibition of this pathway alleviates disease, revealing SIF senescence as a promising therapeutic ...
Muhai Deng, Yunsheng Jiang, Zhiyu Chen, Kaiquan Chen, Na Cao, Yang Huang, Zhengxue Quan, Cheng Chen   +7 more
wiley   +1 more source

CHANGES OF INNATE IMMUNITY INDEXES IN SEVERE ASTHMA IN CHILDREN

Медицинская иммунология, 2019
At the present time, the role of innate immunity in pathogenesis of bronchial asthma (BA) is actively studied, in particular, significance of TLRs and cytokines. The study included 42 patients with severe bronchial asthma (from 3 to 12 years old), and 67
L. V. Gankovskaya, L. S. Namazova-Baranova, G. V. Poriadin, V. V. Grechenko, V. A. Gankovsky, A. A. Alekseeva, Zh. M. Salmashi, A. N. Kazimirsky, B. G. Bragvadze, O. A. Svitich   +9 more
doaj   +1 more source