ArticleCirculation2017
Upregulation of Human Endogenous Retrovirus-K Is Linked to Immunity and Inflammation in Pulmonary Arterial Hypertension.
Article in Circulation, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 50 papers, 1 of them a synthesis that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
50 citing papers in PubMed, 1 synthesis or guideline pooled it, 70 citations in OpenAlex.
- Close to the Bedside: A Systematic Review of Endogenous Retroviruses and Their Impact in Oncology.The Journal of surgical research · 2019Pooled it
- Chronic Reactivation of Persistent Human Herpesviruses EBV, HHV-6 and VZV and Heightened Anti-dUTPase IgG Antibodies Are a Recurrent Hallmark in Post-Infectious ME/CFS and is Associated With Fatigue.Journal of medical virology · 2026Article
- The Role of Toll-like Receptors and Viral Infections in the Pathogenesis and Progression of Pulmonary Arterial Hypertension-A Narrative Review.International journal of molecular sciences · 2025Review
- Evolutionary interplay between viruses and R-loops.FEBS letters · 2025Review
- Altered maturation and activation state of circulating monocytes is associated with their enhanced recruitment in pulmonary arterial hypertension.Respiratory research · 2025Article
- The human plasma anellome exhibits age- and sex-dependent patterns with links to cardiometabolic health in older adults.Frontiers in microbiology · 2025Article
- Microbiome-Immune Interaction in Pulmonary Arterial Hypertension: What Have We Missed?Research (Washington, D.C.) · 2025Review
- MATES: a deep learning-based model for locus-specific quantification of transposable elements in single cell.Nature communications · 2024Article
- Pulmonary artery smooth muscle cell pyroptosis promotes the proliferation of PASMCs by paracrine IL‑1β and IL‑18 in monocrotaline‑induced pulmonary arterial hypertensive rats.Experimental and therapeutic medicine · 2024Article
- Article
- Retrotransposons in Werner syndrome-derived macrophages trigger type I interferon-dependent inflammation in an atherosclerosis model.Nature communications · 2024Article
- Endogenous Retroviruses Unveiled: A Comprehensive Review of Inflammatory Signaling/Senescence-Related Pathways and Therapeutic Strategies.Aging and disease · 2024Review
- B-cells in pulmonary arterial hypertension: friend, foe or bystander?The European respiratory journal · 2024Review
- Novel insights and new therapeutic potentials for macrophages in pulmonary hypertension.Respiratory research · 2024Review
- Article
- Gut-Lung Axis in Focus: Deciphering the Impact of Gut Microbiota on Pulmonary Arterial Hypertension.Journal of personalized medicine · 2023Review
- Identification of immune-associated signatures and potential therapeutic targets for pulmonary arterial hypertension.Journal of cellular and molecular medicine · 2023Article
- Human Endogenous Retrovirus, SARS-CoV-2, and HIV Promote PAH via Inflammation and Growth Stimulation.International journal of molecular sciences · 2023Review
- Postcardiac injury syndrome caused by radiofrequency catheter ablation of persistent atrial fibrillation: severe pulmonary arterial hypertension with severe tricuspid regurgitation: a rare case report and literature review.BMC cardiovascular disorders · 2023Review
- Endogenous Retroviruses as Modulators of Innate Immunity.Pathogens (Basel, Switzerland) · 2023Review
Corrections and comments
- Commented on by
Authors and funding
29 authors at 1 institution in 1 country.
Funding
Abstract
backgroundImmune dysregulation has been linked to occlusive vascular remodeling in pulmonary arterial hypertension (PAH) that is hereditary, idiopathic, or associated with other conditions. Circulating autoantibodies, lung perivascular lymphoid tissue, and elevated cytokines have been related to PAH pathogenesis but without a clear understanding of how these abnormalities are initiated, perpetuated, and connected in the progression of disease. We therefore set out to identify specific target antigens in PAH lung immune complexes as a starting point toward resolving these issues to better inform future application of immunomodulatory therapies.
methodsLung immune complexes were isolated and PAH target antigens were identified by liquid chromatography tandem mass spectrometry, confirmed by enzyme-linked immunosorbent assay, and localized by confocal microscopy. One PAH antigen linked to immunity and inflammation was pursued and a link to PAH pathophysiology was investigated by next-generation sequencing, functional studies in cultured monocytes and endothelial cells, and hemodynamic and lung studies in a rat.
resultsSAM domain and HD domain-containing protein 1 (SAMHD1), an innate immune factor that suppresses HIV replication, was identified and confirmed as highly expressed in immune complexes from 16 hereditary and idiopathic PAH versus 12 control lungs. Elevated SAMHD1 was localized to endothelial cells, perivascular dendritic cells, and macrophages, and SAMHD1 antibodies were prevalent in tertiary lymphoid tissue. An unbiased screen using metagenomic sequencing related SAMHD1 to increased expression of human endogenous retrovirus K (HERV-K) in PAH versus control lungs (n=4). HERV-K envelope and deoxyuridine triphosphate nucleotidohydrolase mRNAs were elevated in PAH versus control lungs (n=10), and proteins were localized to macrophages. HERV-K deoxyuridine triphosphate nucleotidohydrolase induced SAMHD1 and proinflammatory cytokines (eg, interleukin 6, interleukin 1β, and tumor necrosis factor α) in circulating monocytes, pulmonary arterial endothelial cells, and also activated B cells. Vulnerability of pulmonary arterial endothelial cells (PAEC) to apoptosis was increased by HERV-K deoxyuridine triphosphate nucleotidohydrolase in an interleukin 6-independent manner. Furthermore, 3 weekly injections of HERV-K deoxyuridine triphosphate nucleotidohydrolase induced hemodynamic and vascular changes of pulmonary hypertension in rats (n=8) and elevated interleukin 6.
conclusionsOur study reveals that upregulation of the endogenous retrovirus HERV-K could both initiate and sustain activation of the immune system and cause vascular changes associated with PAH.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.