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Endothelial-Enriched lncRNA Gm39822 Modulates Inflammation and Dysfunction in Non-Diabetic Endothelial Cells.

Amit Chandra1, Emre Bektik1, Vinay Randhawa1

  • 1Cardiovascular Division, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA.

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|September 13, 2025
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Summary
This summary is machine-generated.

This study reveals long non-coding RNA Gm39822 exacerbates endothelial dysfunction by increasing inflammation and leukocyte adhesion in non-diabetic cells. Gm39822 is a potential therapeutic target for vascular complications.

Keywords:
diabetesendothelial dysfunctioninflammationlncRNA

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Area of Science:

  • Vascular Biology
  • Molecular Biology
  • Genetics

Background:

  • Endothelial dysfunction is central to vascular complications like diabetes and atherosclerosis.
  • The role of long non-coding RNAs (lncRNAs) in endothelial dysfunction is not well understood.

Purpose of the Study:

  • To investigate the function of lncRNA Gm39822 in endothelial dysfunction in both healthy and diabetic contexts.
  • To explore the molecular mechanisms by which Gm39822 influences endothelial cell responses.

Main Methods:

  • Studied lncRNA Gm39822 expression in endothelial cells under high glucose and inflammatory cytokine stimulation.
  • Manipulated Gm39822 levels (overexpression and silencing) to assess effects on VCAM-1 expression, leukocyte adhesion, inflammatory mediator signaling, and cytokine secretion.
  • Identified interacting protein partners of Gm39822 using molecular assays.

Main Results:

  • Gm39822 was upregulated in non-diabetic endothelial cells exposed to high glucose or inflammatory cytokines (TNF-α, IL-1β).
  • Gm39822 overexpression increased VCAM-1 expression and leukocyte adhesion in non-diabetic cells, while silencing had the opposite effect.
  • Gm39822 deficiency reduced inflammatory signaling pathways (NF-κB, p38, ERK) and pro-inflammatory cytokine secretion (TNF-α, IL-1β, IL-6) in non-diabetic cells.
  • C1D was identified as a Gm39822 interacting partner involved in its function.

Conclusions:

  • lncRNA Gm39822 plays a significant role in promoting endothelial dysfunction and inflammation in non-diabetic conditions.
  • Gm39822 regulates inflammatory responses and leukocyte adhesion through interactions with proteins like C1D.
  • Gm39822 represents a potential therapeutic target for preventing vascular complications linked to non-diabetic endothelial dysfunction.