Category Ranking

98%

Total Visits

921

Avg Visit Duration

2 minutes

Citations

20

Article Abstract

Obesity is a chronic, multifactorial disease characterized by persistent low-grade tissue and systemic inflammation. Fat accumulation in adipose tissue (AT) leads to stress and dysfunctional adipocytes, along with the infiltration of immune cells, which initiates and sustains inflammation. Neutrophils are the first immune cells to infiltrate AT during high-fat diet (HFD)-induced obesity. Emerging evidence suggests that the formation and release of neutrophil extracellular traps (NETs) play a significant role in the progression of obesity and related diseases. Additionally, obesity is associated with an imbalance in gut microbiota and increased intestinal barrier permeability, resulting in the translocation of live bacteria, bacterial deoxyribonucleic acid (DNA), lipopolysaccharides (LPS), and pro-inflammatory cytokines into the bloodstream and AT, thereby contributing to metabolic inflammation. Recent research has also shown that short-chain fatty acids (SCFAs), produced by gut microbiota, can influence various functions of neutrophils, including their activation, migration, and the generation of inflammatory mediators. This review comprehensively summarizes recent advancements in understanding the role of neutrophils and NET formation in the pathophysiology of obesity and related disorders while also focusing on updated potential therapeutic approaches targeting NETs based on studies conducted in humans and animal models.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11727698PMC
http://dx.doi.org/10.3390/ijms252413633DOI Listing

Publication Analysis

Top Keywords

role neutrophils
8
neutrophil extracellular
8
extracellular traps
8
traps nets
8
obesity diseases
8
immune cells
8
gut microbiota
8
obesity
6
evolving role
4
neutrophils
4

Similar Publications

CB2R-cAMP-Epac1 Pathway Orchestrates Epithelial-Neural-Immune Interactions in Atopic Dermatitis.

J Allergy Clin Immunol

September 2025

State Key Laboratory of Chemical Biology, Shanghai Institute of Materia Medica, Shanghai, China; University of Chinese Academy of Sciences, Beijing, China. Electronic address:

Background: Keratinocytes form the skin's first line of defense, not only serving as a physical barrier but also actively communicating with immune cells and sensory neurons.

Objective: To elucidate the molecular mechanisms by which keratinocytes contribute to barrier dysfunction and neuroimmune activation in atopic dermatitis (AD).

Methods: CB2R expression was assessed by RNA-seq, qRT-PCR, RNAscope fluorescence, and western blot.

View Article and Find Full Text PDF

Immunometabolic biomarkers of brain aging: Nonlinear association between neutrophil-to-HDL cholesterol ratio and cognitive decline in older adults.

Brain Behav Immun

September 2025

Department of Public Health Science, Graduate School and Transdisciplinary Major in Learning Health Systems, Graduate School, Korea University, Seoul, South Korea. Electronic address:

Background: Immune dysregulation and metabolic disturbances contribute to cognitive decline in aging populations. The neutrophil-to-HDL cholesterol ratio (NHR), an emerging immunometabolic biomarker, reflects systemic inflammation and vascular dysfunction. However, its role in predicting cognitive impairment in older adults remains unclear.

View Article and Find Full Text PDF

Nitric oxide regulates phagocytosis through S-nitrosylation of Rab5.

J Biol Chem

September 2025

Department of Oral Disease Research, National Center for Geriatrics and Gerontology, 7-430 Moriokacho, Obu, Aichi, 474-8511, Japan; Department of dental hygiene, Ogaki women's college, 109-1 Nishinokawa-cho, Ogaki-city, Gifu, 503-8554, Japan. Electronic address:

Phagocytosis is mediated mainly by immune cells, such as macrophages, monocytes and neutrophils, that clear large pathogens including bacteria. The small GTP-binding protein Rab5 is crucial for both clathrin-dependent endocytosis and phagocytosis, but the role and mechanism of Rab5 activation during phagocytosis are poorly understood. Here we report that nitric oxide (NO), a novel regulator of Rab5, regulates phagocytosis through S-nitrosylation of Rab5.

View Article and Find Full Text PDF

Cachexia, the loss of skeletal muscle mass and function with cancer, contributes to reduced life quality and worsened survival. Skeletal muscle fibrosis leads to disproportionate muscle weakness; however, the role of infiltrating immune cells and fibro-adipogenic progenitors (FAPs) in cancer-induced muscle fibrosis is not well understood. Using the C26 model of cancer cachexia, we sought to examine the changes to skeletal muscle immune cells and FAPs which contribute to excessive extracellular matrix (ECM) collagen deposition.

View Article and Find Full Text PDF

Background: Cardiac ischemia reperfusion (I/R) injury is a serious consequence of reperfusion therapy for myocardial infarction (MI). Peptidylarginine deiminase 4 (PAD4) is a calcium-dependent enzyme that catalyzes the citrullination of proteins. In previous studies, PAD4 inhibition protected distinct organs from I/R injury by preventing the formation of neutrophil extracellular traps (NETs) and attenuating inflammatory responses.

View Article and Find Full Text PDF