TLR4-mediated macropinocytosis promotes smooth muscle cell- derived foam cell formation DOI Creative Commons
Xue Chen, Yulai Kang, Jing-Cheng Li

et al.

Research Square (Research Square), Journal Year: 2023, Volume and Issue: unknown

Published: Aug. 7, 2023

Abstract Objective: To investigate whether vascular smooth muscle cells (VSMCs) take up lipids via the Toll-like receptor 4/spleen tyrosine kinase (TLR4/Syk) mediated macropinocytosis pathway and promote formation of lipid droplets in cells. Methods: Primary wild-type (WT) TLR4 gene-knockout (TLR4 −/− ) VSMCs were isolated by an adherent tissue culture method. Changes uptake DiI-labelled native low-density lipoprotein (DiI-nLDL) Lucifer yellow (LY) detected flow cytometry. The colocalization boron-dipyrromethene (BODIPY)-labelled Neutral LY-labelled macropinosomes was observed confocal microscopy. Results: Lipopolysaccharide (LPS)induced nLDL WT VSMCs, resulting accumulation VSMC-derived foam Stimulation with 200 ng/ml LPS resulted increase LY DiI-nLDL uptake, colocalized but this above effect significantly reduced after treatment inhibitors, not VSMCs. showed a decrease 2 µmol/L R788. Conclusion: induces to droplet aggregation TLR4/Syk is important molecule associated VSMC through pathway.

Language: Английский

Sympathetic Nervous System and Atherosclerosis DOI Open Access
Yutang Wang,

Jack Anesi,

Michelle C. Maier

et al.

International Journal of Molecular Sciences, Journal Year: 2023, Volume and Issue: 24(17), P. 13132 - 13132

Published: Aug. 23, 2023

Atherosclerosis is characterized by the narrowing of arterial lumen due to subendothelial lipid accumulation, with hypercholesterolemia being a major risk factor. Despite recent advances in effective lipid-lowering therapies, atherosclerosis remains leading cause mortality globally, highlighting need for additional therapeutic strategies. Accumulating evidence suggests that sympathetic nervous system plays an important role atherosclerosis. In this article, we reviewed innervation vasculature, norepinephrine synthesis and metabolism, activity measurement, common signaling pathways activation. The focus paper was review effectiveness pharmacological antagonists or agonists adrenoceptors (α1, α2, β1, β2, β3) renal denervation on All five types are present blood vessels. α1 blockers inhibit but increase heart failure while α2 agonism may protect against newer generations β β3 promising therapies atherosclerosis; however, new randomized controlled trials warranted investigate these inhibition cardiovascular reduction future. humans yet be established.

Language: Английский

Citations

23

Lipid-laden foam cells in the pathology of atherosclerosis: shedding light on new therapeutic targets DOI
Cristi L. Galindo, Saifur R. Khan, Xiangyu Zhang

et al.

Expert Opinion on Therapeutic Targets, Journal Year: 2023, Volume and Issue: 27(12), P. 1231 - 1245

Published: Nov. 27, 2023

Introduction Lipid-laden foam cells within atherosclerotic plaques are key players in all phases of lesion development including its progression, necrotic core formation, fibrous cap thinning, and eventually plaque rupture. Manipulating cell biology is thus an attractive therapeutic strategy at early, middle, even late stages atherosclerosis. Traditional therapies have focused on prevention, especially lowering plasma lipid levels. Despite these interventions, atherosclerosis remains a major cause cardiovascular disease, responsible for the largest numbers death worldwide.

Language: Английский

Citations

16

Navigating the landscape: Prospects and hurdles in targeting vascular smooth muscle cells for atherosclerosis diagnosis and therapy DOI
Jianhua He, Yu Gao,

Can Yang

et al.

Journal of Controlled Release, Journal Year: 2024, Volume and Issue: 366, P. 261 - 281

Published: Jan. 5, 2024

Language: Английский

Citations

5

The effects of glycosylation modifications on monocyte recruitment and foam cell formation in atherosclerosis DOI Creative Commons

Da Teng,

Wenlong Wang, Wenjuan Jia

et al.

Biochimica et Biophysica Acta (BBA) - Molecular Basis of Disease, Journal Year: 2024, Volume and Issue: 1870(3), P. 167027 - 167027

Published: Jan. 17, 2024

Language: Английский

Citations

4

The role of foam cells in spinal cord injury: challenges and opportunities for intervention DOI Creative Commons
Xiaoxin Wang, Zehui Li,

Huayong Du

et al.

Frontiers in Immunology, Journal Year: 2024, Volume and Issue: 15

Published: March 13, 2024

Spinal cord injury (SCI) results in a large amount of tissue cell debris the lesion site, which interacts with various cytokines, including inflammatory factors, and intrinsic glial environment central nervous system (CNS) to form an inhibitory microenvironment that impedes nerve regeneration. The efficient clearance is crucial for resolution after SCI. Macrophages are main cells responsible removal However, high lipid content dysregulation metabolism within macrophages lead their transformation into foamy during phagocytic process. This phenotypic shift associated further pro-inflammatory polarization may aggravate neurological deterioration hamper repair. In this review, we summarize phenotype under conditions, as well mechanisms consequences foam formation Moreover, discuss two strategies modulation several potential therapeutic targets enhance treatment

Language: Английский

Citations

4

Oxidized Low-Density Lipoprotein and Its Role in Immunometabolism DOI Open Access
Negin Mosalmanzadeh, Brandt D. Pence

International Journal of Molecular Sciences, Journal Year: 2024, Volume and Issue: 25(21), P. 11386 - 11386

Published: Oct. 23, 2024

Modified cholesterols such as oxidized low-density lipoprotein (OxLDL) contribute to atherosclerosis and other disorders through the promotion of foam cell formation inflammation. In recent years, it has become evident that immune responses inflammatory molecules OxLDLs depend on cellular metabolic functions. This review examines known effects OxLDL immunometabolism in several diseases. We additionally provide context relationship between aging/senescence identify gaps literature our current understanding these areas.

Language: Английский

Citations

4

Interleukin-4 ameliorates macrophage lipid stress through promoting cholesterol efflux and lipid homeostasis DOI
Kuo-Ting Ho, Fang-Yeh Chu,

Yi-kai Lin

et al.

Cytokine, Journal Year: 2025, Volume and Issue: 188, P. 156869 - 156869

Published: Feb. 14, 2025

Language: Английский

Citations

0

Ark Shell-Derived Peptides AWLNH (P3) and PHDL (P4) Mitigate Foam Cell Formation by Modulating Cholesterol Metabolism and HO-1/Nrf2-Mediated Oxidative Stress in Atherosclerosis DOI Creative Commons
Chathuri Kaushalya Marasinghe, Jae‐Young Je

Marine Drugs, Journal Year: 2025, Volume and Issue: 23(3), P. 111 - 111

Published: March 5, 2025

Atherosclerosis, a leading contributor to cardiovascular diseases (CVDs), is characterized by foam cell formation driven excessive lipid accumulation in macrophages and vascular smooth muscle cells. This study elucidates the anti-atherosclerotic potential of AWLNH (P3) PHDL (P4) peptides assessing their effects on formation, metabolism, oxidative stress regulation. P3 P4 effectively suppressed intracellular RAW264.7 human aortic cells (hASMCs), thereby mitigating formation. Mechanistically, both modulated cholesterol homeostasis downregulating influx mediators, cluster differentiation 36 (CD36), class A1 scavenger receptor (SR-A1), while upregulating efflux transporters ATP-binding cassette subfamily A member 1 (ABCA1) G (ABCG1). The activation peroxisome proliferator-activated receptor-gamma (PPAR-γ) liver X receptor-alpha (LXR-α) further substantiated role promoting restoring homeostasis. Additionally, exhibited potent antioxidative properties attenuating reactive oxygen species (ROS) generation through HO-1/Nrf2 signaling axis. HO-1 silencing via siRNA transfection abolished these effects, confirming HO-1-dependent regulation metabolism. Collectively, findings highlight as promising therapeutic agents for atherosclerosis concurrently targeting dysregulation, stress, warranting exploration clinical applications.

Language: Английский

Citations

0

Probing Shear-Induced Endothelial Activation in Vascular Conditions Using On-Chip Models DOI

Swachhatoa Ghosh,

Sumantra Mandal, Abhijit Das

et al.

ACS Biomaterials Science & Engineering, Journal Year: 2025, Volume and Issue: unknown

Published: April 11, 2025

Hemodynamic fluctuations at vessel bifurcation impact the development of atherosclerosis and aneurysms. A novel glass capillary tube-based lithography-free technique was used for fabricating bifurcations with stenosis aneurysm junction to determine endothelial response arterial shear rates in vitro. At variable 1-2000 s-1, representative conditions aorta, cell responses under flow disturbances encountered stenosed aneurysmal vessels were modeled. Mechanical induce greater activation stenosis, while increased VE-cadherin expression deters dilations. The disturbed better observed area bifurcation, where increase forces reduced pressure marginally compensated cellular activation. comparative model established using an image analysis approach assessment toward disease progression bifurcations. No significant differences markers inflammatory stress physiologically relevant mechanical stresses due compensatory effects cytokines inducing NF-κβ activation, as seen this frugal approach.

Language: Английский

Citations

0

Prognostic factors of MINOCA and their possible mechanisms DOI Creative Commons
Mo-Wei Kong,

Zhenying Pei,

Yu-Yu Xie

et al.

Preventive Medicine Reports, Journal Year: 2024, Volume and Issue: 39, P. 102643 - 102643

Published: Feb. 4, 2024

Despite not showing substantial stenosis of coronary arteries, Myocardial Infarction with Non-Obstructive Coronary Arteries (MINOCA) presents myocardial ischemia injury, thus having a grave prognosis and high risk long-term complications. This necessitates increased clinical attention exploration its root causes to prevent similar crisis.

Language: Английский

Citations

3