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HMOX1-LDHB interaction promotes ferroptosis by inducing mitochondrial dysfunction in foamy macrophages during advanced atherosclerosis.
Dev Cell
December 2024
Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin 150086, China; Heilongjiang Provincial Key Laboratory of Panvascular Disease, Harbin 150086, China; The Key Laboratory of Myocardial Ischemia, Chinese Ministry of Education, Harbin 150081, China; State Key Laboratory of Frigid Zone Cardiovascular Diseases, Harbin 150080, China. Electronic address:
Advanced atherosclerosis is the pathological basis for acute cardiovascular events, with significant residual risk of recurrent clinical events despite contemporary treatment. The death of foamy macrophages is a main contributor to plaque progression, but the underlying mechanisms remain unclear. Bulk and single-cell RNA sequencing demonstrated that massive iron accumulation in advanced atherosclerosis promoted foamy macrophage ferroptosis, particularly in low expression of triggering receptor expressed on myeloid cells 2 (TREM2) foamy macrophages.
View Article and Find Full Text PDFDeoxyvasicinone hybrids in the management of Alzheimer's disease: Recent advances on manmade derivatives, pharmacological activities, and structure-activity relationship.
Arch Pharm (Weinheim)
January 2025
Department of Pharmacognosy, University Institute of Pharma Sciences, Chandigarh University, Mohali, Punjab, India.
Alzheimer's disease (AD) is a prevalent neurological illness that affects over 80% of aged adults globally in cases of dementia. Although the exact pathophysiological causes of AD remain unclear, its pathogenesis is primarily driven by several distinct biochemical alterations: (i) the accumulation of toxic Aβ plaques, (ii) the hyperphosphorylation of tau proteins, (iii) oxidative stress resulting in cell death, and (iv) an imbalance between the two main neurotransmitters, glutamate and acetylcholine (ACh). Currently, there are very few medications available and no treatment.
View Article and Find Full Text PDFPartial microglial depletion and repopulation exert subtle but differential effects on amyloid pathology at different disease stages.
Sci Rep
December 2024
Department of Neuroscience, Del Monte Institute for Neuroscience, University of Rochester, Rochester, NY, USA.
Colony-stimulating factor-1-receptor (CSF1R) inhibitors have been widely used to rapidly deplete microglia from the brain, allowing the remaining microglia population to self-renew and repopulate. These new-born microglia are thought to be "rejuvenated" and have been shown to be beneficial in several disease contexts and in normal aging. Their role in Alzheimer's disease (AD) is thus of great interest as they represent a potential disease-modifying therapy.
View Article and Find Full Text PDFGelatin methacryloyl @MP196/exos hydrogel induced neutrophil apoptosis and macrophage M2 polarization to inhibit periodontal bone loss.
Colloids Surf B Biointerfaces
December 2024
Department of Periodontology, Tianjin Medical University School and Hospital of Stomatology & Tianjin Key Laboratory of Oral Soft and Hard Tissues Restoration and Regeneration, No.12 Qixiangtai Road, Heping District, Tianjin 300070, PR China; Tianjin Medical University Institute of Stomatology, No.12 Qixiangtai Road, Heping District, Tianjin 300070, PR China. Electronic address:
Objectives: Periodontitis is an inflammatory and destructive disease caused by dental plaque, which can result in the immune microenvironment disorders and loss of periodontal support tissue. In order to promote the restoration of local microenvironment stability, a functional biomaterial Gelatin methacryloyl @MP196/exos based on characteristics of disease occurrence is designed.
Methods: Transmission electron microscopy, nanosight particle tracking analysis and western blot analysis were applied to prove the presence of exos in GelMA@MP196/exos.
Single-cell analysis identified key macrophage subpopulations associated with atherosclerosis.
Open Med (Wars)
December 2024
Shandong University of Traditional Chinese Medicine, Jinan, 250014, China.
Background: Atherosclerosis is a lipid-driven inflammatory disease characterized by plaque formation in major arteries. These plaques contain lipid-rich macrophages that accumulate through monocyte recruitment, local macrophage differentiation, and proliferation.
Objective: We identify the macrophage subsets that are closely related to atherosclerosis and reveal the key pathways in the progression of atherosclerotic disease.
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