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Updated: Sep 12, 2025
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On-Chip Endothelial Inflammatory Phenotyping
Published on: July 21, 2012
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CD38+ Endothelial Remodeling Defines Spatially Diverse Vasculopathy Programs in Rapidly Advancing Oral Inflammation
Quinn T Easter1, Khoa Huynh2, Camila Stolf3
1Department of Oral and Craniofacial Molecular Biology, Philips Institute for Oral Health Research, Virginia Commonwealth University, Richmond, VA, USA.
Biorxiv : the Preprint Server for Biology
|August 6, 2025
Summary
Rapidly advancing oral inflammatory diseases like peri-implantitis involve distinct vascular changes. This study reveals specific blood vessel alterations as a key feature of these severe conditions.
Area of Science:
- Oral biology
- Inflammatory diseases
- Vascular biology
Background:
- Oral inflammatory diseases, including peri-implantitis and periodontitis, affect a large portion of the global population.
- These conditions are characterized by rapid tissue destruction, but the underlying cellular mechanisms and spatial architecture remain poorly understood.
- Understanding these mechanisms is crucial for developing effective treatments.
Purpose of the Study:
- To investigate the shared pathogenic programs and spatial architecture driving severe oral inflammatory diseases, focusing on peri-implantitis and high-grade periodontitis.
- To identify cellular and molecular mechanisms contributing to rapid tissue destruction in these conditions.
- To explore potential therapeutic targets based on disease-specific spatial patterns.
Main Methods:
- Applied microbial profiling, single-cell RNA sequencing (scRNA-seq), and spatial proteomics (sp-proteomics) to analyze tissue samples.
- Anatomically oriented tissues along the tooth- or implant-epithelial interface to preserve spatial fidelity.
- Utilized laser capture microdissection for compartment-specific microbiome analysis and developed tri-wise spatial analysis for VEC states.
Main Results:
- Reduced bacterial load and diversity were observed in peri-implantitis stroma.
- scRNA-seq revealed widespread transcriptional alterations, including oxidative stress and hypoxic signatures, in TNFRSF6B+/ICAM1+ post-capillary venules.
- sp-proteomics identified CD34+-VEC loss and CD38+-VEC expansion in peri-implantitis and high-grade periodontitis, indicating spatially distinct vasculopathy.
Conclusions:
- Spatially distinct vasculopathy patterning, characterized by CD38+-VEC expansion, is a hallmark of rapidly advancing oral inflammation.
- These vascular changes represent a potential therapeutic target for severe inflammatory oral diseases.
- The study provides new insights into the pathogenesis of peri-implantitis and periodontitis at a cellular and spatial level.
