ArticleExperimental lung research2015
DNA methylation profile and expression of surfactant protein A2 gene in lung cancer.
Article in Experimental lung research, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 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
15 citing papers in PubMed, 21 citations in OpenAlex.
- Article
- The Role of Pulmonary Collectins, Surfactant Protein A (SP-A) and Surfactant Protein D (SP-D) in Cancer.Cancers · 2024Review
- Construction and validation of a tumor mutational burden and immune-related prognostic model for predicting the prognosis of patients with lung squamous cell carcinoma.Journal of thoracic disease · 2023Article
- The Lung Alveolar Cell (LAC) miRNome and Gene Expression Profile of the SP-A-KO Mice After Infection With and Without Rescue With Human Surfactant Protein-A2 (1AFrontiers in immunology · 2022Article
- A comprehensive characterization of the cell-free transcriptome reveals tissue- and subtype-specific biomarkers for cancer detection.Nature communications · 2021Article
- Surfactant Protein A, a Novel Regulator for Smooth Muscle Phenotypic Modulation and Vascular Remodeling-Brief Report.Arteriosclerosis, thrombosis, and vascular biology · 2021Article
- Differential Regulation of Human Surfactant Protein A Genes, SFTPA1 and SFTPA2, and Their Corresponding Variants.Frontiers in immunology · 2021Review
- Evaluation of the Methylation and Acetylation Profiles of Dinitroaniline Herbicides and Resveratrol on the V79 Cell Line.Turkish journal of pharmaceutical sciences · 2020Article
- Clinical-pathological and molecular characterization of long-term survivors with advanced non-small cell lung cancer.Cancer biology & medicine · 2020Article
- Comprehensive immunogenomic landscape analysis of prognosis-related genes in head and neck cancer.Scientific reports · 2020Article
- Sex-Specific Regulation of Gene Expression Networks by Surfactant Protein A (SP-A) Variants in Alveolar Macrophages in Response toFrontiers in immunology · 2020Article
- Identification of polymorphisms in the bovine collagenous lectins and their association with infectious diseases in cattle.Immunogenetics · 2018Article
- The Clinical Signification of Claudin-11 Promoter Hypermethylation for Laryngeal Squamous Cell Carcinoma.Medical science monitor : international medical journal of experimental and clinical research · 2017Article
- Large-scale RNA-Seq Transcriptome Analysis of 4043 Cancers and 548 Normal Tissue Controls across 12 TCGA Cancer Types.Scientific reports · 2015Article
- 14-3-3 isoforms bind directly exon B of the 5'-UTR of human surfactant protein A2 mRNA.American journal of physiology. Lung cellular and molecular physiology · 2015Article
Corrections and comments
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Authors and funding
5 authors at 2 institutions in 1 country.
Funding
Abstract
Knowledge of the methylation profile of genes allow for the identification of biomarkers that may guide diagnosis and effective treatment of disease. Human surfactant protein A (SP-A) plays an important role in lung homeostasis and immunity, and is encoded by two genes (SFTPA1 and SFTPA2). The goal of this study was to identify differentially methylated CpG sites in the promoter region of the SFTPA2 gene in lung cancer tissue, and to determine the correlation between the promoter's methylation profile and gene expression. For this, we collected 28 pairs of cancerous human lung tissue and adjacent noncancerous (NC) lung tissue: 17 adenocarcinoma (AC), 9 squamous cell carcinoma (SCC), and 2 AC with SCC features, and we evaluated DNA methylation of the SFTPA2 promoter region by bisulfite conversion. Our results identified a higher methylation ratio in one CpG site of the SFTPA2 gene in cancerous tissue versus NC tissue (0.36 versus 0.11, p = 0.001). When assessing AC samples, we also found cancerous tissues associated with a higher methylation ratio (0.43 versus 0.10, p = 0.02). In the SCC group, although cancerous tissue showed a higher methylation ratio (0.22 versus 0.11), this difference was not statistically significant (p = 0.35). Expression of SFTPA2 mRNA and total SP-A protein was significantly lower in cancer tissue when compared to adjacent NC tissue (p < 0.001), and correlated with the hypermethylated status of an SFTPA2 CpG site in AC samples. The findings of this pilot study may hold promise for future use of SFTPA2 as a biomarker for the diagnosis of lung cancer.
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