ArticlePloS one2014
Respiratory tract epithelial cells express retinaldehyde dehydrogenase ALDH1A and enhance IgA production by stimulated B cells in the presence of vitamin A.
Article in PloS one, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 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.
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Who cites it
32 citing papers in PubMed, 42 citations in OpenAlex.
- Randomized Controlled Clinical Trial of Pediatric Pneumococcus and Hepatitis A Vaccinations With or Without a High-Dose Oral Vitamin A Supplement.Biomolecules · 2025Trial
- Vitamins impacting mental/physical well-being during viral pandemics: a mechanistic review based on COVID-19: a comprehensive review.Inflammopharmacology · 2026Review
- Epithelial-immune interface in asthma: Mechanistic insights driving novel therapeutic strategies.Seminars in immunopathology · 2026Review
- Vitamins as modulators of neonatal intestinal injury.Frontiers in nutrition · 2026Review
- Intranasal zinc and vitamin A treatments alter response to bovine respiratory syncytial virus andTranslational animal science · 2025Article
- Vitamin A Positively Correlates with Secretory Immunoglobulin A: A Cross-Sectional Study in Omicron COVID-19 Outpatients.Journal of clinical medicine · 2024Article
- How Estrogen, Testosterone, and Sex Differences Influence Serum Immunoglobulin Isotype Patterns in Mice and Humans.Viruses · 2023Article
- Retinol Binding Protein, Sunlight Hours, and the Influenza Virus-Specific Immune Response.Biomedicines · 2022Article
- Hypothesis: Low Vitamin A and D Levels Worsen Clinical Outcomes When Children with Sickle Cell Disease Encounter Parvovirus B19.Nutrients · 2022Article
- Exploring the Immune-Boosting Functions of Vitamins and Minerals as Nutritional Food Bioactive Compounds: A Comprehensive Review.Molecules (Basel, Switzerland) · 2022Review
- Porcine bile acids promote the utilization of fat and vitamin A under low-fat diets.Frontiers in nutrition · 2022Article
- Mega doses of retinol: A possible immunomodulation in Covid-19 illness in resource-limited settings.Reviews in medical virology · 2021Review
- Review
- Association of Food Intake Quality with Vitamin D in SARS-CoV-2 Positive Patients from Mexico: A Cross-Sectional Study.International journal of environmental research and public health · 2021Article
- Effect of Vitamin A Deficiency in Dysregulating Immune Responses to Influenza Virus and Increasing Mortality Rates After Bacterial Coinfections.The Journal of infectious diseases · 2021Article
- Might Routine Vitamin A Monitoring in Cystic Fibrosis Patients Reduce Virus-Mediated Lung Pathology?Frontiers in immunology · 2021Article
- Article
- Consequences of Vitamin A Deficiency: Immunoglobulin Dysregulation, Squamous Cell Metaplasia, Infectious Disease, and Death.International journal of molecular sciences · 2020Article
- Nuclear Receptors, Ligands and the Mammalian B Cell.International journal of molecular sciences · 2020Review
- From Influenza Virus Infections to Lupus: Synchronous Estrogen ReceptorViral immunology · 2020Article
Corrections and comments
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Authors and funding
6 authors at 2 institutions in 1 country.
Funding
Abstract
Morbidity and mortality due to viral infections are major health concerns, particularly when individuals are vitamin A deficient. Vitamin A deficiency significantly impairs mucosal IgA, a first line of defense against virus at its point of entry. Previous reports have suggested that CD11c(Hi) dendritic cells (DCs) of the gastrointestinal tract produce retinaldehyde dehydrogenase (ALDH1A), which metabolizes vitamin A precursors to retinoic acid to support normal mucosal immunity. Given that the upper respiratory tract (URT) and gastrointestinal tract share numerous characteristics, we asked if the CD11c(Hi) DCs of the URT might also express ALDH1A. To address this question, we examined both CD11c(Hi) test cells and CD11c(Lo/neg) control cells from nasal tissue. Surprisingly, the CD11c(Lo/neg) cells expressed more ALDH1A mRNA per cell than did the CD11c(Hi) cells. Further evaluation of CD11c(Lo/neg) populations by PCR and staining of respiratory tract sections revealed that epithelial cells were robust producers of both ALDH1A mRNA and protein. Moreover, CD11c(Lo/neg) cells from nasal tissue (and a homogeneous respiratory tract epithelial cell line) enhanced IgA production by lipopolysaccharide (LPS)-stimulated splenocyte cultures in the presence of the retinoic acid precursor retinol. Within co-cultures, there was increased expression of MCP-1, IL-6, and GM-CSF, the latter two of which were necessary for IgA upregulation. All three cytokines/chemokines were expressed by the LPS-stimulated respiratory tract epithelial cell line in the absence of splenocytes. These data demonstrate the autonomous potential of respiratory tract epithelial cells to support vitamin A-mediated IgA production, and encourage the clinical testing of intranasal vitamin A supplements in vitamin A deficient populations to improve mucosal immune responses toward respiratory tract pathogens and vaccines.
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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.