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Alzheimer's disease (AD) is an age-related neurodegenerative disorder (NDD). In the central nervous system (CNS), immune cells like microglia could reprogram intracellular metabolism to alter or exert cellular immune functions in response to environmental stimuli. In AD, microglia could be activated and differentiated into pro-inflammatory or anti-inflammatory phenotypes, and these differences in cellular phenotypes resulted in variance in cellular energy metabolism. Considering the enormous energy requirement of microglia for immune functions, the changes in mitochondria-centered energy metabolism and substrates of microglia are crucial for the cellular regulation of immune responses. Here we reviewed the mechanisms of microglial metabolic reprogramming by analyzing their flexible metabolic patterns and changes that occurred in their metabolism during the development of AD. Further, we summarized the role of drugs in modulating immunometabolic reprogramming to prevent neuroinflammation, which may shed light on a new research direction for AD treatment.
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http://dx.doi.org/10.1016/j.neuint.2023.105614 | DOI Listing |
J Biomed Sci
September 2025
Division of Gastroenterology, Department of Medicine, University of Massachusetts Chan Medical School, Worcester, MA, USA.
Oncometabolites are aberrant metabolic byproducts that arise from mutations in enzymes of the tricarboxylic acid (TCA) cycle or related metabolic pathways and play central roles in tumor progression and immune evasion. Among these, 2-hydroxyglutarate (2-HG), succinate, and fumarate are the most well-characterized, acting as competitive inhibitors of α-ketoglutarate-dependent dioxygenases to alter DNA and histone methylation, cellular differentiation, and hypoxia signaling. More recently, itaconate, an immunometabolite predominantly produced by activated macrophages, has been recognized for its dual roles in modulating inflammation and tumor immunity.
View Article and Find Full Text PDFTrends Immunol
September 2025
Systemic Autoimmunity Branch, National Institute of Arthritis and Musculoskeletal and Skin Diseases, 10 Center Drive, 12N248C, Bethesda, MD 20892, USA. Electronic address:
Autoimmune diseases arise from genetic and environmental factors that disrupt immune tolerance. Recent studies highlight the role of myeloid cell immunometabolism, particularly mitochondrial dysfunction, in driving autoimmunity. Mitochondria regulate energy homeostasis and cell fate; their impairment leads to defective immune cell differentiation, abnormal effector activity, and chronic inflammation.
View Article and Find Full Text PDFFront Immunol
September 2025
Department of Biomedical Sciences, College of Health Sciences, QU Health, Qatar University, Doha, Qatar.
Cancer is a multifaceted disease driven by a complex interplay of genetic predisposition, environmental factors and lifestyle habits. With the accelerating pace of cancer research, the gut microbiome has emerged as a critical modulator of human health and immunity. Disruption in the gut microbial populations and diversity, known as dysbiosis, has been linked with the development of chronic inflammation, oncogenesis, angiogenesis and metastasis.
View Article and Find Full Text PDFMol Biomed
September 2025
National Key Laboratory of Immunity and Inflammation & Institute of Immunology, College of Basic Medical Sciences, Naval Medical University, Shanghai, 200433, China.
Dendritic cells (DCs) play a central role in coordinating immune responses by linking innate and adaptive immunity through their exceptional antigen-presenting capabilities. Recent studies reveal that metabolic reprogramming-especially pathways involving acetyl-coenzyme A (acetyl-CoA)-critically influences DC function in both physiological and pathological contexts. This review consolidates current knowledge on how environmental factors, tumor-derived signals, and intrinsic metabolic pathways collectively regulate DC development, subset differentiation, and functional adaptability.
View Article and Find Full Text PDFFASEB J
September 2025
National Heart Center Singapore, Singapore, Singapore.
Cardiovascular diseases are increasingly recognized as chronic disorders driven by a complex interplay between inflammation and fibrosis. In this review, we elucidate emerging mechanisms that govern the transition from acute inflammation to pathological fibrosis, with particular focus on cellular crosstalk between neutrophils, macrophages, fibroblasts, and myofibroblasts. We explore how dysregulated immune responses and extracellular matrix (ECM) remodeling sustain a pathogenic feedback loop, promoting myocardial stiffening and adverse cardiac remodeling.
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