Background: Triggering receptor expressed on myeloid cells 1 (TREM-1) is secreted by phagocytes in adipose tissue and it also upregulates the expression of genes involved in the inflammatory response and atherosclerotic conditions. This study was aimed to investigate the serum TREM-1 levels in overweight patients.
Methods: Twenty-eight subjects in the overweight group (OG) and 20 age-matched healthy subjects in the control group (CG) (BMI 27.6±1.2 vs 23.1±2.17 kg/m2, respectively, p<0.001) were included in the study. The serum sTREM-1 level was measured by ELISA. The homeostasis model assessment score (HOMA-IR) was also calculated.
Results: The mean TREM-1 levels were significantly higher in OG than in CG (407.3±323.7 vs 150.3±152.7 pg/mL, respectively, p<0.001). The HOMA-IR score was also significantly higher in OG than in CG (3.42±3.63 vs 2.77±1.61, respectively). A positive correlation was detected between TREM-1 and BMI (r=0.318, p=0.028).
Conclusions: This study mainly demonstrated that a high serum TREM-1 level might be an early inflammatory marker in overweight patients. We found that TREM-1 might be associated with BMI in overweight patients regardless of insulin resistance (Tab. 1, Ref. 21). Text in PDF www.elis.sk.
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http://dx.doi.org/10.4149/BLL_2020_039 | DOI Listing |
Front Immunol
January 2025
IrsiCaixa, Badalona, Spain.
Introduction: HIV-1 exploits dendritic cells (DCs) to spread throughout the body via specific recognition of gangliosides present on the viral envelope by the CD169/Siglec-1 membrane receptor. This interaction triggers the internalization of HIV-1 within a structure known as the sac-like compartment. While the mechanism underlying sac-like compartment formation remains elusive, prior research indicates that the process is clathrin-independent and cell membrane cholesterol-dependent and involves transient disruption of cortical actin.
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January 2025
Department of Oral Biology, School and Hospital of Stomatology, Jilin University, Changchun, China.
Aging often triggers dental pulp fibrosis, resulting in clinical repercussions such as increased susceptibility to dental infections, compromised tooth vitality, and reduced responsiveness to dental interventions. Despite its prevalence, the precise molecular mechanisms underlying this condition remains unclear. Leveraging single-cell transcriptome analysis from both our own and publicly available datasets, we identified Ccrl2 macrophages as particularly vulnerable during the early stages of aging.
View Article and Find Full Text PDFHeliyon
January 2025
Department of Bioinformatics, Manipal School of Life Sciences, Manipal Academy of Higher Education, Manipal, India.
The myeloid-specific triggering receptors expressed on myeloid cells 2 (TREM2) is a group of class I receptors expressed in brain microglia plays a decisive role in neurodegenerative diseases such as Alzheimer's disease (AD) and Nasu Hakola disease (NHD). The extracellular domain (ECD) of TREM2 interacts with a wide-range of ligands, yet the molecular mechanism underlying recognition of such ligands to this class I receptor remains underexplored. Herein, we undertook a systematic investigation for exploring the mode of ligand recognition in immunoglobulin-like ectodomain by employing both knowledge-based and machine-learning guided molecular docking approach followed by the state-of-the-art all atoms molecular dynamics (MD) simulations.
View Article and Find Full Text PDFOncol Res
January 2025
Department of Physiology, China Medical University, Taichung, 404328, Taiwan.
Objectives: Mitochondrial Ca uniporter (MCU) provides a Ca influx pathway from the cytosol into the mitochondrial matrix and a moderate mitochondrial Ca rise stimulates ATP production and cell growth. MCU is highly expressed in various cancer cells including breast cancer cells, thereby increasing the capacity of mitochondrial Ca uptake, ATP production, and cancer cell proliferation. The objective of this study was to examine MCU inhibition as an anti-cancer mechanism.
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