Subtopic Deep Dive
Cell Adhesion Molecules in Atherosclerosis
Research Guide
What is Cell Adhesion Molecules in Atherosclerosis?
Cell Adhesion Molecules in Atherosclerosis examines the roles of VCAM-1 and ICAM-1 in monocyte recruitment to arterial walls during plaque formation and progression.
VCAM-1 expression on endothelial cells, regulated by oxidative stress and NF-κB, promotes leukocyte adhesion in early atherosclerosis (Marui et al., 1993; 1068 citations). ICAM-1 contributes to firm adhesion and transendothelial migration of monocytes. Adiponectin modulates endothelial adhesion molecules, reducing VCAM-1 and ICAM-1 in obesity-related atherosclerosis (Ouchi et al., 1999; 2137 citations). Over 10 key papers from the list address these mechanisms.
Why It Matters
Blocking VCAM-1 and ICAM-1 reduces monocyte recruitment and plaque progression, offering targets for atherosclerosis therapies. Adiponectin supplementation suppresses adhesion molecule expression, improving endothelial function in cardiovascular disease models (Ouchi et al., 1999). NF-κB activation in plaques drives VCAM-1 and inflammation, linking adhesion to lesion vulnerability (Brand et al., 1996). Integrin targeting inhibits ECM remodeling and cell migration in plaques (Pang et al., 2023). These insights support anti-adhesion drugs to prevent myocardial infarction (Frangogiannis, 2002).
Key Research Challenges
Regulating VCAM-1 Expression
VCAM-1 transcription in endothelial cells responds to oxidative stress via antioxidant-sensitive mechanisms (Marui et al., 1993). Challenges include identifying specific NF-κB inhibitors without off-target effects (Brand et al., 1996). Therapies must balance inhibition to prevent excessive leukocyte suppression.
Monocyte Recruitment Mechanisms
ICAM-1 and VCAM-1 mediate sequential rolling and firm adhesion of monocytes in arterial walls. Adiponectin modulates these molecules but levels drop in obesity (Ouchi et al., 1999). Challenge lies in restoring modulation amid ECM remodeling (Lu et al., 2011).
Integrin-ECM Interactions
Integrins link adhesion molecules to cytoskeletal changes driving plaque cell migration (Huttenlocher and Horwitz, 2011). Targeting pathways risks disrupting vascular repair (Pang et al., 2023). Neutrophil involvement adds complexity to leukocyte dynamics (Witko-Sarsat et al., 2000).
Essential Papers
Extracellular Matrix Degradation and Remodeling in Development and Disease
Pengfei Lu, Ken Takai, Valerie M. Weaver et al. · 2011 · Cold Spring Harbor Perspectives in Biology · 2.2K citations
The extracellular matrix (ECM) serves diverse functions and is a major component of the cellular microenvironment. The ECM is a highly dynamic structure, constantly undergoing a remodeling process ...
Novel Modulator for Endothelial Adhesion Molecules
Noriyuki Ouchi, Shinji Kihara, Yukio Arita et al. · 1999 · Circulation · 2.1K citations
Background —Among the many adipocyte-derived endocrine factors, we recently found an adipocyte-specific secretory protein, adiponectin, which was decreased in obesity. Although obesity is associate...
The inflammatory response in myocardial infarction
Nikolaos G. Frangogiannis · 2002 · Cardiovascular Research · 2.0K citations
One of the major therapeutic goals of modern cardiology is to design strategies aimed at minimizing myocardial necrosis and optimizing cardiac repair following myocardial infarction. However, a sou...
Neutrophils: Molecules, Functions and Pathophysiological Aspects
Véronique Witko‐Sarsat, Philippe Rieu, Béatrice Descamps‐Latscha et al. · 2000 · Laboratory Investigation · 1.1K citations
Vascular cell adhesion molecule-1 (VCAM-1) gene transcription and expression are regulated through an antioxidant-sensitive mechanism in human vascular endothelial cells.
Nobuyuki Marui, M K Offermann, Robert A. Swerlick et al. · 1993 · Journal of Clinical Investigation · 1.1K citations
Oxidative stress and expression of the vascular cell adhesion molecule-1 (VCAM-1) on vascular endothelial cells are early features in the pathogenesis of atherosclerosis and other inflammatory dise...
Targeting integrin pathways: mechanisms and advances in therapy
Xiaocong Pang, He Xu, Zhiwei Qiu et al. · 2023 · Signal Transduction and Targeted Therapy · 1.0K citations
Abstract Integrins are considered the main cell-adhesion transmembrane receptors that play multifaceted roles as extracellular matrix (ECM)-cytoskeletal linkers and transducers in biochemical and m...
Surface expression of alpha 4 integrin by CD4 T cells is required for their entry into brain parenchyma.
Jody L. Baron, Joseph A. Madri, Nancy H. Ruddle et al. · 1993 · The Journal of Experimental Medicine · 828 citations
Cloned CD4 T cell lines that recognize the Ac1-16 peptide of myelin basic protein bound to I-Au were isolated and used to analyze the immunopathogenesis of experimental autoimmune encephalomyelitis...
Reading Guide
Foundational Papers
Start with Marui et al. (1993) for VCAM-1 oxidative regulation basics, then Ouchi et al. (1999) for endothelial modulation by adiponectin.
Recent Advances
Pang et al. (2023) on integrin therapy advances; Lu et al. (2011) for ECM remodeling in plaques.
Core Methods
NF-κB transcription assays (Brand et al., 1996); adhesion blockade in vivo (Miyamoto et al., 1999); integrin-cytoskeletal linking (Huttenlocher and Horwitz, 2011).
How PapersFlow Helps You Research Cell Adhesion Molecules in Atherosclerosis
Discover & Search
Research Agent uses searchPapers('VCAM-1 atherosclerosis') to find Marui et al. (1993), then citationGraph to map NF-κB regulators like Brand et al. (1996), and findSimilarPapers for integrin links (Pang et al., 2023). exaSearch uncovers adiponectin modulation papers (Ouchi et al., 1999).
Analyze & Verify
Analysis Agent applies readPaperContent on Ouchi et al. (1999) to extract adhesion data, verifyResponse with CoVe against Frangogiannis (2002) for inflammation consistency, and runPythonAnalysis to plot VCAM-1 expression correlations from datasets. GRADE grading scores evidence strength for therapeutic claims.
Synthesize & Write
Synthesis Agent detects gaps in integrin targeting post-2011 (Lu et al., 2011), flags contradictions in neutrophil roles (Witko-Sarsat et al., 2000), and uses exportMermaid for VCAM-1 signaling diagrams. Writing Agent employs latexEditText for figure captions, latexSyncCitations for 10+ references, and latexCompile for plaque progression reviews.
Use Cases
"Correlate VCAM-1 expression levels with plaque inflammation from key papers"
Research Agent → searchPapers → Analysis Agent → runPythonAnalysis (pandas/matplotlib on extracted data) → bar chart of expression vs. inflammation metrics.
"Draft LaTeX review on ICAM-1 blockade in atherosclerosis"
Synthesis Agent → gap detection → Writing Agent → latexEditText + latexSyncCitations (Ouchi 1999, Marui 1993) + latexCompile → formatted PDF with citations.
"Find code for simulating monocyte adhesion models"
Research Agent → paperExtractUrls → Code Discovery → paperFindGithubRepo → githubRepoInspect → Python scripts for integrin dynamics simulation.
Automated Workflows
Deep Research workflow scans 50+ papers via searchPapers on 'VCAM-1 ICAM-1 atherosclerosis', structures report with ECM remodeling gaps (Lu et al., 2011). DeepScan applies 7-step analysis: readPaperContent → verifyResponse → GRADE on Ouchi et al. (1999). Theorizer generates hypotheses on adiponectin-integrin synergies from Frangogiannis (2002).
Frequently Asked Questions
What defines Cell Adhesion Molecules in Atherosclerosis?
Focuses on VCAM-1 and ICAM-1 roles in monocyte recruitment to plaques (Marui et al., 1993).
What are key methods for studying adhesion molecules?
Antioxidant-sensitive assays measure VCAM-1 transcription (Marui et al., 1993); NF-κB immunohistochemistry detects activation in lesions (Brand et al., 1996).
What are foundational papers?
Marui et al. (1993, 1068 citations) on VCAM-1 regulation; Ouchi et al. (1999, 2137 citations) on adiponectin modulation.
What open problems exist?
Specific NF-κB inhibitors for VCAM-1 without impairing repair; integrin targeting amid ECM dynamics (Pang et al., 2023; Lu et al., 2011).
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