ArticleCells2021
Sphingosine 1 Phosphate (S1P) Receptor 1 Is Decreased in Human Lung Microvascular Endothelial Cells of Smokers and Mediates S1P Effect on Autophagy.
Article in Cells, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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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.
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Who cites it
10 citing papers in PubMed, 13 citations in OpenAlex.
- Mechanistic insights and therapeutic potential of sphingosine‑1‑phosphate in the development of pulmonary fibrosis (Review).Molecular medicine reports · 2026Review
- Possible Involvement of Lysophospholipids in Severe Asthma as Novel Lipid Mediators.Biomolecules · 2025Review
- Diabetes mellitus-driven pulmonary injury: multidimensional mechanisms linking metabolic dysregulation to gut-lung axis and promising therapies.Frontiers in pharmacology · 2025Review
- S1PR1 suppresses lung adenocarcinoma progression through p-STAT1/miR-30c-5 p/FOXA1 pathway.Journal of experimental & clinical cancer research : CR · 2024Article
- Sphingolipid-Based Synergistic Interactions to Enhance Chemosensitivity in Lung Cancer Cells.Cells · 2023Article
- The role of sphingosine-1-phosphate in autophagy and related disorders.Cell death discovery · 2023Review
- Macrophage polarization involved the inflammation of chronic obstructive pulmonary disease by S1P/HDAC1 signaling.American journal of cancer research · 2023Article
- Prevalence of reduced lung diffusing capacity and CT scan findings in smokers without airflow limitation: a population-based study.BMJ open respiratory research · 2023Article
- Pharmacological sphingosine-1 phosphate receptor 1 targeting in cigarette smoke-induced emphysema in mice.American journal of physiology. Lung cellular and molecular physiology · 2022Article
- Prohibitin Protects Pulmonary Microvascular Endothelial Cells Against Cigarette Smoke Extract-Induced Cell Apoptosis and Inflammation.International journal of chronic obstructive pulmonary disease · 2022Article
Corrections and comments
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Authors and funding
8 authors at 1 institution in 1 country.
Funding
Abstract
Destruction of alveoli by apoptosis induced by cigarette smoke (CS) is a major driver of emphysema pathogenesis. However, when compared to cells isolated from non-smokers, primary human lung microvascular endothelial cells (HLMVECs) isolated from chronic smokers are more resilient when exposed to apoptosis-inducing ceramide. Whether this adaptation restores homeostasis is unknown. To better understand the phenotype of HLMVEC in smokers, we interrogated a major pro-survival pathway supported by sphingosine-1-phosphate (S1P) signaling via S1P receptor 1 (S1P1). Primary HLMVECs from lungs of non-smoker or smoker donors were isolated and studied in culture for up to five passages. S1P1 mRNA and protein abundance were significantly decreased in HLMVECs from smokers compared to non-smokers. S1P1 was also decreased in situ in lungs of mice chronically exposed to CS. Levels of S1P1 expression tended to correlate with those of autophagy markers, and increasing S1P (via S1P lyase knockdown with siRNA) stimulated baseline macroautophagy with lysosomal degradation. In turn, loss of S1P1 (siRNA) inhibited these effects of S1P on HLMVECs autophagy. These findings suggest that the anti-apoptotic phenotype of HLMVECs from smokers may be maladaptive, since it is associated with decreased S1P1 expression that may impair their autophagic response to S1P.
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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.