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Chen JQ, Salas LA, Wiencke JK, Koestler DC, Molinaro AM, Andrew AS, Seigne JD, Karagas MR, Kelsey KT, Christensen BC. Matched analysis of detailed peripheral blood and tumor immune microenvironment profiles in bladder cancer. Epigenomics 2024; 16:41-56. [PMID: 38221889 PMCID: PMC10804212 DOI: 10.2217/epi-2023-0358] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Accepted: 12/11/2023] [Indexed: 01/16/2024] Open
Abstract
Background: Bladder cancer and therapy responses hinge on immune profiles in the tumor microenvironment (TME) and blood, yet studies linking tumor-infiltrating immune cells to peripheral immune profiles are limited. Methods: DNA methylation cytometry quantified TME and matched peripheral blood immune cell proportions. With tumor immune profile data as the input, subjects were grouped by immune infiltration status and consensus clustering. Results: Immune hot and cold groups had different immune compositions in the TME but not in circulating blood. Two clusters of patients identified with consensus clustering had different immune compositions not only in the TME but also in blood. Conclusion: Detailed immune profiling via methylation cytometry reveals the significance of understanding tumor and systemic immune relationships in cancer patients.
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Affiliation(s)
- Ji-Qing Chen
- Department of Epidemiology, Geisel School of Medicine, Dartmouth College, Lebanon, NH 03766, USA
| | - Lucas A Salas
- Department of Epidemiology, Geisel School of Medicine, Dartmouth College, Lebanon, NH 03766, USA
| | - John K Wiencke
- Department of Neurological Surgery, University of California San Francisco, San Francisco, CA 94143, USA
| | - Devin C Koestler
- Department of Biostatistics & Data Science, University of Kansas Medical Center, Kansas City, KS 66160, USA
| | - Annette M Molinaro
- Department of Neurological Surgery, University of California San Francisco, San Francisco, CA 94143, USA
| | - Angeline S Andrew
- Department of Neurology, Geisel School of Medicine, Dartmouth College, Lebanon, NH 03766, USA
| | - John D Seigne
- Department of Surgery, Section of Urology, Geisel School of Medicine, Dartmouth College, Lebanon, NH 03766, USA
| | - Margaret R Karagas
- Department of Epidemiology, Geisel School of Medicine, Dartmouth College, Lebanon, NH 03766, USA
| | - Karl T Kelsey
- Departments of Epidemiology & Pathology & Laboratory Medicine, Brown University, Providence, RI 02912, USA
| | - Brock C Christensen
- Department of Epidemiology, Geisel School of Medicine, Dartmouth College, Lebanon, NH 03766, USA
- Departments of Molecular and Systems Biology, Geisel School of Medicine, Dartmouth College, Lebanon, NH 03766, USA
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Wiencke JK, Nissen E, Koestler DC, Tamaki SJ, Tamaki CM, Hansen HM, Warrier G, Hadad S, McCoy L, Rice T, Clarke J, Taylor JW, Salas LA, Christensen BC, Kelsey KT, Butler R, Molinaro AM. Enrichment of a neutrophil-like monocyte transcriptional state in glioblastoma myeloid suppressor cells. Res Sq 2023:rs.3.rs-3793353. [PMID: 38234734 PMCID: PMC10793488 DOI: 10.21203/rs.3.rs-3793353/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2024]
Abstract
Glioblastomas (GBM) are lethal central nervous system cancers associated with tumor and systemic immunosuppression. Heterogeneous monocyte myeloid-derived suppressor cells (M-MDSC) are implicated in the altered immune response in GBM, but M-MDSC ontogeny and definitive phenotypic markers are unknown. Using single-cell transcriptomics, we revealed heterogeneity in blood M-MDSC from GBM subjects and an enrichment in a transcriptional state reminiscent of neutrophil-like monocytes (NeuMo), a newly described pathway of monopoiesis in mice. Human NeuMo gene expression and Neu-like deconvolution fraction algorithms were created to quantitate the enrichment of this transcriptional state in GBM subjects. NeuMo populations were also observed in M-MDSCs from lung and head and neck cancer subjects. Dexamethasone (DEX) and prednisone exposures increased the usage of Neu-like states, which were inversely associated with tumor purity and survival in isocitrate dehydrogenase wildtype (IDH WT) gliomas. Anti-inflammatory ZC3HA12/Regnase-1 transcripts were highly correlated with NeuMo expression in tumors and in blood M-MDSC from GBM, lung, and head and neck cancer subjects. Additional novel transcripts of immune-modulating proteins were identified. Collectively, these findings provide a framework for understanding the heterogeneity of M-MDSCs in GBM as cells with different clonal histories and may reshape approaches to study and therapeutically target these cells.
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Affiliation(s)
- J K Wiencke
- Department of Neurological Surgery, University of California San Francisco, San Francisco, CA
| | - Emily Nissen
- Department of Biostatistics & Data Science, University of Kansas Medical Center, Kansas City, KS
| | - Devin C Koestler
- Department of Biostatistics & Data Science, University of Kansas Medical Center, Kansas City, KS
| | - Stan J Tamaki
- Parnassus Flow Cytometry CoLab, University of California San Francisco, San Francisco, CA 94143-0511, USA
| | - Courtney M Tamaki
- Parnassus Flow Cytometry CoLab, University of California San Francisco, San Francisco, CA 94143-0511, USA
| | - Helen M Hansen
- Department of Neurological Surgery, University of California San Francisco, San Francisco, CA
| | - Gayathri Warrier
- Department of Neurological Surgery, University of California San Francisco, San Francisco, CA
| | - Sara Hadad
- Department of Neurological Surgery, University of California San Francisco, San Francisco, CA
| | - Lucie McCoy
- Department of Neurological Surgery, University of California San Francisco, San Francisco, CA
| | - Terri Rice
- Department of Neurological Surgery, University of California San Francisco, San Francisco, CA
| | - Jennifer Clarke
- Department of Neurological Surgery, University of California San Francisco, San Francisco, CA
- Department of Neurology, University of California San Francisco, San Francisco, CA
| | - Jennie W Taylor
- Department of Neurological Surgery, University of California San Francisco, San Francisco, CA
- Department of Neurology, University of California San Francisco, San Francisco, CA
| | - Lucas A Salas
- Department of Epidemiology, Geisel School of Medicine, Dartmouth College, Lebanon, NH
| | - Brock C Christensen
- Department of Epidemiology, Geisel School of Medicine, Dartmouth College, Lebanon, NH
- Department of Molecular and Systems Biology, Geisel School of Medicine, Dartmouth College, Lebanon, NH
- Department of Community and Family Medicine, Geisel School of Medicine, Dartmouth College, Lebanon, NH
| | - Karl T Kelsey
- Department of Epidemiology, Brown University, Providence, RI
- Department of Pathology and Laboratory Medicine, Brown University, Providence, RI
| | - Rondi Butler
- Department of Epidemiology, Brown University, Providence, RI
- Department of Pathology and Laboratory Medicine, Brown University, Providence, RI
| | - Annette M Molinaro
- Department of Neurological Surgery, University of California San Francisco, San Francisco, CA
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Chen JQ, Salas LA, Wiencke JK, Koestler DC, Molinaro AM, Andrew AS, Seigne JD, Karagas MR, Kelsey KT, Christensen BC. Genome-Scale Methylation Analysis Identifies Immune Profiles and Age Acceleration Associations with Bladder Cancer Outcomes. Cancer Epidemiol Biomarkers Prev 2023; 32:1328-1337. [PMID: 37527159 PMCID: PMC10543967 DOI: 10.1158/1055-9965.epi-23-0331] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 06/06/2023] [Accepted: 07/28/2023] [Indexed: 08/03/2023] Open
Abstract
BACKGROUND Immune profiles have been associated with bladder cancer outcomes and may have clinical applications for prognosis. However, associations of detailed immune cell subtypes with patient outcomes remain underexplored and may contribute crucial prognostic information for better managing bladder cancer recurrence and survival. METHODS Bladder cancer case peripheral blood DNA methylation was measured using the Illumina HumanMethylationEPIC array. Extended cell-type deconvolution quantified 12 immune cell-type proportions, including memory, naïve T and B cells, and granulocyte subtypes. DNA methylation clocks determined biological age. Cox proportional hazards models tested associations of immune cell profiles and age acceleration with bladder cancer outcomes. The partDSA algorithm discriminated 10-year overall survival groups from clinical variables and immune cell profiles, and a semi-supervised recursively partitioned mixture model (SS-RPMM) with DNA methylation data was applied to identify a classifier for 10-year overall survival. RESULTS Higher CD8T memory cell proportions were associated with better overall survival [HR = 0.95, 95% confidence interval (CI) = 0.93-0.98], while higher neutrophil-to-lymphocyte ratio (HR = 1.36, 95% CI = 1.23-1.50), CD8T naïve (HR = 1.21, 95% CI = 1.04-1.41), neutrophil (HR = 1.04, 95% CI = 1.03-1.06) proportions, and age acceleration (HR = 1.06, 95% CI = 1.03-1.08) were associated with worse overall survival in patient with bladder cancer. partDSA and SS-RPMM classified five groups of subjects with significant differences in overall survival. CONCLUSIONS We identified associations between immune cell subtypes and age acceleration with bladder cancer outcomes. IMPACT The findings of this study suggest that bladder cancer outcomes are associated with specific methylation-derived immune cell-type proportions and age acceleration, and these factors could be potential prognostic biomarkers.
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Affiliation(s)
- Ji-Qing Chen
- Department of Epidemiology, Geisel School of Medicine, Dartmouth College, Lebanon, New Hampshire
| | - Lucas A. Salas
- Department of Epidemiology, Geisel School of Medicine, Dartmouth College, Lebanon, New Hampshire
| | - John K. Wiencke
- Department of Neurological Surgery, University of California San Francisco, San Francisco, California
| | - Devin C. Koestler
- Department of Biostatistics & Data Science, University of Kansas Medical Center, Kansas City, Kansas
| | - Annette M. Molinaro
- Department of Neurological Surgery, University of California San Francisco, San Francisco, California
| | - Angeline S. Andrew
- Department of Neurology, Geisel School of Medicine, Dartmouth College, Lebanon, New Hampshire
| | - John D. Seigne
- Department of Surgery, Section of Urology, Geisel School of Medicine, Dartmouth College, Lebanon, New Hampshire
| | - Margaret R. Karagas
- Department of Epidemiology, Geisel School of Medicine, Dartmouth College, Lebanon, New Hampshire
| | - Karl T. Kelsey
- Departments of Epidemiology and Pathology and Laboratory Medicine, Brown University, Providence, Rhode Island
| | - Brock C. Christensen
- Department of Epidemiology, Geisel School of Medicine, Dartmouth College, Lebanon, New Hampshire
- Departments of Molecular and Systems Biology, and Community and Family Medicine, Geisel School of Medicine, Dartmouth College, Lebanon, New Hampshire
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Zhao N, Teles F, Lu J, Koestler DC, Beck J, Boerwinkle E, Bressler J, Kelsey KT, Platz EA, Michaud DS. Epigenome-wide association study using peripheral blood leukocytes identifies genomic regions associated with periodontal disease and edentulism in the Atherosclerosis Risk in Communities study. J Clin Periodontol 2023; 50:1140-1153. [PMID: 37464577 PMCID: PMC10528731 DOI: 10.1111/jcpe.13852] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Revised: 06/28/2023] [Accepted: 06/30/2023] [Indexed: 07/20/2023]
Abstract
AIM To investigate individual susceptibility to periodontitis by conducting an epigenome-wide association study using peripheral blood. MATERIALS AND METHODS We included 1077 African American and 457 European American participants of the Atherosclerosis Risk in Communities (ARIC) study who had completed a dental examination or reported being edentulous at Visit 4 and had available data on DNA methylation from Visit 2 or 3. DNA methylation levels were compared by periodontal disease severity and edentulism through discovery analyses and subsequent testing of individual CpGs. RESULTS Our discovery analysis replicated findings from a previous study reporting a region in gene ZFP57 (6p22.1) that was significantly hypomethylated in severe periodontal disease compared with no/mild periodontal disease in European American participants. Higher methylation levels in a separate region in an unknown gene (located in Chr10: 743,992-744,958) was associated with significantly higher odds of edentulism compared with no/mild periodontal disease in African American participants. In subsequent CpG testing, four CpGs in a region previously associated with periodontitis located within HOXA4 were significantly hypermethylated in severe periodontal disease compared with no/mild periodontal disease in African American participants (odds ratio per 1 SD increase in methylation level: cg11015251: 1.28 (1.02, 1.61); cg14359292: 1.24 (1.01, 1.54); cg07317062: 1.30 (1.05, 1.61); cg08657492: 1.25 (1.01, 1.55)). CONCLUSIONS Our study highlights epigenetic variations in ZPF57 and HOXA4 that are significantly and reproducibly associated with periodontitis. Future studies should evaluate gene regulatory mechanisms in the candidate regions of these loci.
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Affiliation(s)
- Naisi Zhao
- Department of Public Health & Community Medicine, Tufts University School of Medicine, Tufts University, Boston, MA
| | - Flavia Teles
- Department of Basic & Translational Sciences, University of Pennsylvania, Philadelphia, PA
| | - Jiayun Lu
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD
| | - Devin C. Koestler
- Department of Biostatistics & Data Science, University of Kansas Medical Center, Kansas City, KS
- University of Kansas Cancer Center, Kansas City, KS
| | - James Beck
- Division of Comprehensive Oral Health/Periodontology, Adams School of Dentistry, University of North Carolina, Chapel Hill, NC
| | - Eric Boerwinkle
- Human Genetics Center, School of Public Health, University of Texas Health Science Center at Houston, Houston, TX
- Human Genome Sequencing Center, Baylor College of Medicine, Houston, TX
| | - Jan Bressler
- Human Genetics Center, School of Public Health, University of Texas Health Science Center at Houston, Houston, TX
| | - Karl T. Kelsey
- Department of Epidemiology, Brown University, Providence, RI
- Department of Pathology and Laboratory Medicine, Brown University, Providence, RI
| | - Elizabeth A. Platz
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD
- The Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins, Baltimore, MD
| | - Dominique S. Michaud
- Department of Public Health & Community Medicine, Tufts University School of Medicine, Tufts University, Boston, MA
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Zhang Z, Wiencke JK, Kelsey KT, Koestler DC, Molinaro AM, Pike SC, Karra P, Christensen BC, Salas LA. Hierarchical deconvolution for extensive cell type resolution in the human brain using DNA methylation. Front Neurosci 2023; 17:1198243. [PMID: 37404460 PMCID: PMC10315586 DOI: 10.3389/fnins.2023.1198243] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Accepted: 05/30/2023] [Indexed: 07/06/2023] Open
Abstract
Introduction The human brain comprises heterogeneous cell types whose composition can be altered with physiological and pathological conditions. New approaches to discern the diversity and distribution of brain cells associated with neurological conditions would significantly advance the study of brain-related pathophysiology and neuroscience. Unlike single-nuclei approaches, DNA methylation-based deconvolution does not require special sample handling or processing, is cost-effective, and easily scales to large study designs. Existing DNA methylation-based methods for brain cell deconvolution are limited in the number of cell types deconvolved. Methods Using DNA methylation profiles of the top cell-type-specific differentially methylated CpGs, we employed a hierarchical modeling approach to deconvolve GABAergic neurons, glutamatergic neurons, astrocytes, microglial cells, oligodendrocytes, endothelial cells, and stromal cells. Results We demonstrate the utility of our method by applying it to data on normal tissues from various brain regions and in aging and diseased tissues, including Alzheimer's disease, autism, Huntington's disease, epilepsy, and schizophrenia. Discussion We expect that the ability to determine the cellular composition in the brain using only DNA from bulk samples will accelerate understanding brain cell type composition and cell-type-specific epigenetic states in normal and diseased brain tissues.
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Affiliation(s)
- Ze Zhang
- Department of Epidemiology, Geisel School of Medicine, Dartmouth College, Lebanon, NH, United States
| | - John K. Wiencke
- Department of Neurological Surgery, Institute for Human Genetics, University of California, San Francisco, San Francisco, CA, United States
| | - Karl T. Kelsey
- Department of Epidemiology, Department of Pathology and Laboratory Medicine, Brown University School of Public Health, Providence, RI, United States
| | - Devin C. Koestler
- Department of Biostatistics and Data Science, University of Kansas Medical Center, Kansas City, KS, United States
| | - Annette M. Molinaro
- Department of Neurological Surgery, Institute for Human Genetics, University of California, San Francisco, San Francisco, CA, United States
| | - Steven C. Pike
- Department of Epidemiology, Geisel School of Medicine, Dartmouth College, Lebanon, NH, United States
- Department of Neurology, Geisel School of Medicine, Dartmouth College, Lebanon, NH, United States
| | - Prasoona Karra
- Department of Epidemiology, Geisel School of Medicine, Dartmouth College, Lebanon, NH, United States
| | - Brock C. Christensen
- Department of Epidemiology, Geisel School of Medicine, Dartmouth College, Lebanon, NH, United States
- Department of Molecular and Systems Biology, Geisel School of Medicine, Dartmouth College, Lebanon, NH, United States
| | - Lucas A. Salas
- Department of Epidemiology, Geisel School of Medicine, Dartmouth College, Lebanon, NH, United States
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Nissen E, Reiner A, Liu S, Wallace RB, Molinaro AM, Salas LA, Christensen BC, Wiencke JK, Koestler DC, Kelsey KT. Assessment of immune cell profiles among post-menopausal women in the Women's Health Initiative using DNA methylation-based methods. Clin Epigenetics 2023; 15:69. [PMID: 37118842 PMCID: PMC10141818 DOI: 10.1186/s13148-023-01488-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Accepted: 04/19/2023] [Indexed: 04/30/2023] Open
Abstract
BACKGROUND Over the past decade, DNA methylation (DNAm)-based deconvolution methods that leverage cell-specific DNAm markers of immune cell types have been developed to provide accurate estimates of the proportions of leukocytes in peripheral blood. Immune cell phenotyping using DNAm markers, termed immunomethylomics or methylation cytometry, offers a solution for determining the body's immune cell landscape that does not require fresh blood and is scalable to large sample sizes. Despite significant advances in DNAm-based deconvolution, references at the population level are needed for clinical and research interpretation of these additional immune layers. Here we aim to provide some references for immune populations in a group of multi-ethnic post-menopausal American women. RESULTS We applied DNAm-based deconvolution to a large sample of post-menopausal women enrolled in the Women's Health Initiative (baseline, N = 58) or the ancillary Long Life Study (WHI-LLS, N = 1237) to determine the reference ranges of 58 immune parameters, including proportions and absolute counts for 19 leukocyte subsets and 20 derived cell ratios. Participants were 50-94 years old at the time of blood draw, and N = 898 (69.3%) self-identified as White. Using linear regression models, we observed significant associations between age at blood draw and absolute counts and proportions of naïve B, memory CD4+, naïve CD4+, naïve CD8+, memory CD8+ memory, neutrophils, and natural killer cells. We also assessed the same immune profiles in a subset of paired longitudinal samples collected 14-18 years apart across N = 52 participants. Our results demonstrate high inter-individual variability in rates of change of leukocyte subsets over this time. And, when conducting paired t tests to test the difference in counts and proportions between the baseline visit and LLS visit, there were significant changes in naïve B, memory CD4+, naïve CD4+, naïve CD8+, memory CD8+ cells and neutrophils, similar to the results seen when analyzing the association with age in the entire cohort. CONCLUSIONS Here, we show that derived cell counts largely reflect the immune profile associated with proportions and that these novel methods replicate the known immune profiles associated with age. Further, we demonstrate the value this methylation cytometry approach can add as a potential application in epidemiological studies.
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Affiliation(s)
- Emily Nissen
- Department of Biostatistics and Data Science, University of Kansas Medical Center, Kansas City, KS, USA
| | - Alexander Reiner
- Division of Public Health Science, Fred Hutchinson Cancer Center, Seattle, WA, USA
| | - Simin Liu
- Departments of Epidemiology, Medicine, and Surgery, Brown University, Providence, RI, USA
| | - Robert B Wallace
- Departments of Epidemiology and Internal Medicine, School of Public Health, University of Iowa, Iowa City, IA, USA
| | - Annette M Molinaro
- Department of Neurological Surgery, University of California San Francisco, San Francisco, CA, USA
| | - Lucas A Salas
- Department of Epidemiology, Geisel School of Medicine, Dartmouth College, Lebanon, NH, USA
| | - Brock C Christensen
- Department of Epidemiology, Geisel School of Medicine, Dartmouth College, Lebanon, NH, USA
- Department of Molecular and Systems Biology, Geisel School of Medicine, Dartmouth College, Lebanon, NH, USA
- Department of Community and Family Medicine, Geisel School of Medicine, Dartmouth College, Lebanon, NH, USA
| | - John K Wiencke
- Department of Neurological Surgery, University of California San Francisco, San Francisco, CA, USA
- UCSF Weill Institute for Neurosciences, University of California San Francisco, San Francisco, CA, USA
| | - Devin C Koestler
- Department of Biostatistics and Data Science, University of Kansas Medical Center, Kansas City, KS, USA
| | - Karl T Kelsey
- Departments of Epidemiology and Pathology and Laboratory Medicine, Brown University, 70 Ship St, Providence, RI, 02903, USA.
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Ampomah NK, Teles F, Martin LM, Lu J, Koestler DC, Kelsey KT, Beck JD, Platz EA, Michaud DS. Circulating IgG Antibodies to Periodontal Bacteria and Lung Cancer Risk in the CLUE Cohorts. JNCI Cancer Spectr 2023; 7:7114561. [PMID: 37040077 PMCID: PMC10152995 DOI: 10.1093/jncics/pkad029] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 02/21/2023] [Accepted: 03/28/2023] [Indexed: 04/12/2023] Open
Abstract
BACKGROUND Oral health is a key indicator of overall health, well-being, and quality of life. Several studies have provided new evidence about the role of oral diseases, specifically periodontitis, in generating risk for various forms of cancers including lung, colorectal, and pancreatic cancers. METHODS Incident lung cancer cases (n = 192) and matched controls (n = 192) were selected from participants of the CLUE I and CLUE II cohorts. Archived serum samples collected from participants in 1974 (in CLUE I) were analyzed using immunoblotting for IgG antibody levels to 13 bacteria of the periodontium. Associations between antibody levels and lung cancer were estimated using conditional logistic regression. RESULTS Most of the periodontal bacterial antibodies measured were inversely associated with lung cancer risk; of these, three were statistically significant (P. intermedia, A. naeslundii, and V. parvula). A statistically significant positive association was observed for one of the P. gingivalis strains after adjusting for P. intermedia. The sum of the logarithm of antibodies against the 13 measured bacteria was inversely associated with risk of lung cancer when the analysis was restricted to a longer follow-up (31-44 years after blood collection, highest vs lowest quartile: OR = 0.26, 95% CI = 0.08-0.84). CONCLUSION Findings from this study highlight the complexity of using serum IgG antibodies to periodontal bacteria to identify associations between oral pathogens and risk of lung cancer. The inverse associations observed for antibodies to periodontal bacteria suggest that these may represent markers of immunity that provide some advantage in reducing the development of lung cancer.
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Affiliation(s)
- Nana K Ampomah
- Department of Public Health & Community Medicine, Tufts University School of Medicine, Tufts University, Boston, MA, USA
| | - Flavia Teles
- Department of Basic & Translational Sciences, University of Pennsylvania, Philadelphia, PA, USA
| | - Lynn M Martin
- Department of Basic & Translational Sciences, University of Pennsylvania, Philadelphia, PA, USA
| | - Jiayun Lu
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Devin C Koestler
- Department of Biostatistics & Data Science, University of Kansas Medical Center, Kansas City, KS, USA
- University of Kansas Cancer Center, Kansas City, KS, USA
| | - Karl T Kelsey
- Department of Epidemiology, Brown University, Providence, RI, USA
- Department of Pathology and Laboratory Medicine, Brown University, Providence, RI, USA
| | - James D Beck
- Division of Comprehensive Oral Health/Periodontology, Adams School of Dentistry, University of North Carolina, Chapel Hill, NC, USA
| | - Elizabeth A Platz
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
- The Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins, Baltimore, MD, USA
| | - Dominique S Michaud
- Department of Public Health & Community Medicine, Tufts University School of Medicine, Tufts University, Boston, MA, USA
- Department of Epidemiology, Brown University, Providence, RI, USA
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Chen JQ, Salas LA, Wiencke JK, Koestler DC, Molinaro AM, Andrew AS, Seigne JD, Karagas MR, Kelsey KT, Christensen BC. Abstract 6675: Integration of associations of immune profiles in peripheral blood and tumor microenvironment with bladder cancer outcomes. Cancer Res 2023. [DOI: 10.1158/1538-7445.am2023-6675] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/07/2023]
Abstract
Abstract
Immune cell profiles in peripheral blood have been associated with bladder cancer outcomes, however, their association with response to immunotherapy and the tumor microenvironment is a major unresolved issue. Although tumor growth can be attenuated via the activation of tumor-infiltrating effector T cells, the relationship between tumor infiltration and immune activation remains unclear. This study explored the interaction between bladder cancer outcomes and immune profiles within peripheral blood and a tumor microenvironment (TME) based on DNA methylation profiles. Peripheral blood and the matched tumor FFPE DNA methylation profiles of 60 non-muscle-invasive bladder cancer (NMIBC) and 12 muscle-invasive bladder cancer (MIBC) patients. Cell-type deconvolution approaches were applied to estimate 12 peripheral immune cell-type proportions and 17 cell-type proportions within TME. We found a positive correlation between dendritic cell proportions in the TME with peripheral CD8T memory cell proportions (r = 0.35, P = 0.003) and a negative correlation between dendritic cell proportions in the TME with peripheral regulatory T cell proportions (r = -0.28, P = 0.021). In addition, monocyte cell proportions in TME had a positive correlation with peripheral B memory (r = 0.37, P = 0.002) and CD8T memory cell proportions (r = 0.43, P = 0.0002). To investigate associations of bladder cancer outcomes with immune cell profiles, using Cox proportional hazard models, we observed an association between the fraction of dendritic cells and the hazard of death (HR = 1.27, 95% CI = 1.06-1.53). Further, a high endothelial cell proportion was significantly associated with an increased hazard of death and tumor recurrence (HR = 1.06, 95% CI = 1.01-1.13) in TME. In addition, the peripheral neutrophil-to-lymphocyte ratio (HR = 1.49, 95% CI = 1.01-2.22), monocyte (HR = 1.17, 95% CI = 1.05-1.31), neutrophil (HR = 1.04, 95% CI = 1.01-1.07), and basophil (HR = 1.35, 95% CI = 1.01-1.81) cell proportions were associated with an increased hazard of death and tumor recurrence. Our results integrated the information on bladder cancer outcomes and cell profiles in TME and peripheral blood, providing biomarkers for estimating bladder cancer prognosis using genome-scale DNA methylation measures.
Citation Format: Ji-Qing Chen, Lucas A. Salas, John K. Wiencke, Devin C. Koestler, Annette M. Molinaro, Angeline S. Andrew, John D. Seigne, Margaret R. Karagas, Karl T. Kelsey, Brock C. Christensen. Integration of associations of immune profiles in peripheral blood and tumor microenvironment with bladder cancer outcomes. [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2023; Part 1 (Regular and Invited Abstracts); 2023 Apr 14-19; Orlando, FL. Philadelphia (PA): AACR; Cancer Res 2023;83(7_Suppl):Abstract nr 6675.
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Bell-Glenn S, Salas LA, Molinaro AM, Butler RA, Christensen BC, Kelsey KT, Wiencke JK, Koestler DC. Calculating detection limits and uncertainty of reference-based deconvolution of whole-blood DNA methylation data. Epigenomics 2023; 15:435-451. [PMID: 37337720 PMCID: PMC10308256 DOI: 10.2217/epi-2023-0006] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2023] [Accepted: 05/16/2023] [Indexed: 06/21/2023] Open
Abstract
DNA methylation (DNAm)-based cell mixture deconvolution (CMD) has become a quintessential part of epigenome-wide association studies where DNAm is profiled in heterogeneous tissue types. Despite being introduced over a decade ago, detection limits, which represent the smallest fraction of a cell type in a mixed biospecimen that can be reliably detected, have yet to be determined in the context of DNAm-based CMD. Moreover, there has been little attention given to approaches for quantifying the uncertainty associated with DNAm-based CMD. Here, analytical frameworks for determining both cell-specific limits of detection and quantification of uncertainty associated with DNAm-based CMD are described. This work may contribute to improved rigor, reproducibility and replicability of epigenome-wide association studies involving CMD.
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Affiliation(s)
- Shelby Bell-Glenn
- Department of Biostatistics & Data Science, University of Kansas Medical Center, Kansas City, KS 66160, USA
| | - Lucas A Salas
- Department of Epidemiology, Geisel School of Medicine, Dartmouth College, Hanover, NH 03756, USA
| | - Annette M Molinaro
- Department of Neurological Surgery, University of California San Francisco, San Francisco, CA 94143, USA
| | - Rondi A Butler
- Departments of Epidemiology & Pathology & Laboratory Medicine, Brown University, Providence, RI 02912, USA
| | - Brock C Christensen
- Department of Epidemiology, Geisel School of Medicine, Dartmouth College, Hanover, NH 03756, USA
- Department of Molecular & Systems Biology, Geisel School of Medicine, Dartmouth College, Lebanon, NH 03756, USA
- Department of Community & Family Medicine, Geisel School of Medicine, Dartmouth College, Lebanon, NH 03756, USA
| | - Karl T Kelsey
- Departments of Epidemiology & Pathology & Laboratory Medicine, Brown University, Providence, RI 02912, USA
| | - John K Wiencke
- Department of Neurological Surgery, University of California San Francisco, San Francisco, CA 94143, USA
- Institute for Human Genetics, University of California San Francisco, San Francisco, CA 94143, USA
| | - Devin C Koestler
- Department of Biostatistics & Data Science, University of Kansas Medical Center, Kansas City, KS 66160, USA
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10
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Debertin J, Teles F, Martin LM, Lu J, Koestler DC, Kelsey KT, Beck JD, Platz EA, Michaud DS. Antibodies to Oral Pathobionts and Colon Cancer Risk in the
CLUE
I Cohort Study. Int J Cancer 2023; 153:302-311. [PMID: 36971101 PMCID: PMC10389748 DOI: 10.1002/ijc.34527] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Revised: 02/21/2023] [Accepted: 02/21/2023] [Indexed: 03/29/2023]
Abstract
Periodontitis has been associated with an increased risk for gastrointestinal cancers. The objective of our study was to investigate the association of antibodies to oral bacteria and the risk of colon cancer in a cohort setting. Using the CLUE I cohort, a prospective cohort initiated in 1974 in Washington County, Maryland, we conducted a nested case-control study to examine the association of levels of IgG antibodies to 11 oral bacterial species (13 total strains) with risk of colon cancer diagnosed a median of 16 years later (range: 1-26 years). Antibody response was measured using checkerboard immunoblotting assays. We included 200 colon cancer cases and 200 controls matched on age, sex, cigarette smoking status, time of blood draw and pipe or cigar smoking status. Controls were selected using incidence density sampling. Conditional logistic regression models were used to assess the association between antibody levels and colon cancer risk. In the overall analysis, we observed significant inverse associations for 6 of the 13 antibodies measured (P-trends <.05) and one positive association for antibody levels to Aggregatibacter actinomycetemcomitans (ATCC 29523; P-trend = .04). While we cannot rule out a role for periodontal disease in colon cancer risk, findings from our study suggest that a strong adaptive immune response may be associated with a lower risk of colon cancer. More studies will need to examine whether the positive associations we observed with antibodies to A. actinomycetemcomitans reflect a true causal association for this bacterium.
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Affiliation(s)
- Julia Debertin
- Department of Public Health & Community Medicine, Tufts University School of Medicine, Tufts University, Boston, Massachusetts, USA
| | - Flavia Teles
- Department of Basic & Translational Sciences, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Lynn M Martin
- Department of Basic & Translational Sciences, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Jiayun Lu
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - Devin C Koestler
- Department of Biostatistics & Data Science, University of Kansas Medical Center, Kansas City, Kansas, USA
- University of Kansas Cancer Center, Kansas City, Kansas, USA
| | - Karl T Kelsey
- Department of Epidemiology, Brown University, Providence, Rhode Island, USA
- Department of Pathology and Laboratory Medicine, Brown University, Providence, Rhode Island, USA
| | - James D Beck
- Division of Comprehensive Oral Health/Periodontology, Adams School of Dentistry, University of North Carolina, Chapel Hill, North Carolina, USA
| | - Elizabeth A Platz
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
- The Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins, Baltimore, Maryland, USA
| | - Dominique S Michaud
- Department of Public Health & Community Medicine, Tufts University School of Medicine, Tufts University, Boston, Massachusetts, USA
- Department of Epidemiology, Brown University, Providence, Rhode Island, USA
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11
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Michaud DS, Chung M, Zhao N, Koestler DC, Lu J, Platz EA, Kelsey KT. Epigenetic age and lung cancer risk in the CLUE II prospective cohort study. Aging (Albany NY) 2023; 15:617-629. [PMID: 36750177 PMCID: PMC9970317 DOI: 10.18632/aging.204501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Accepted: 01/23/2023] [Indexed: 02/09/2023]
Abstract
BACKGROUND Epigenetic age, a robust marker of biological aging, has been associated with obesity, low-grade inflammation and metabolic diseases. However, few studies have examined associations between different epigenetic age measures and risk of lung cancer, despite great interest in finding biomarkers to assist in risk stratification for lung cancer screening. METHODS A nested case-control study of lung cancer from the CLUE II cohort study was conducted using incidence density sampling with 1:1 matching of controls to lung cancer cases (n = 208 matched pairs). Prediagnostic blood samples were collected in 1989 (CLUE II study baseline) and stored at -70°C. DNA was extracted from buffy coat and DNA methylation levels were measured using Illumina MethylationEPIC BeadChip Arrays. Three epigenetic age acceleration (i.e., biological age is greater than chronological age) measurements (Horvath, Hannum and PhenoAge) were examined in relation to lung cancer risk using conditional logistic regression. RESULTS We did not observe associations between the three epigenetic age acceleration measurements and risk of lung cancer overall; however, inverse associations for the two Hannum age acceleration measures (intrinsic and extrinsic) were observed in men and among younger participants, but not in women or older participants. We did not observe effect modification by time from blood draw to diagnosis. CONCLUSION Findings from this study do not support a positive association between three different biological age acceleration measures and risk of lung cancer. Additional studies are needed to address whether epigenetic age is associated with lung cancer in never smokers.
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Affiliation(s)
- Dominique S. Michaud
- Department of Public Health and Community Medicine, Tufts University School of Medicine, Tufts University, Boston, MA 02111, USA
| | - Mei Chung
- Department of Public Health and Community Medicine, Tufts University School of Medicine, Tufts University, Boston, MA 02111, USA,Division of Nutrition Epidemiology and Data Science, Friedman School of Nutrition, Tufts University, Boston, MA 02111, USA
| | - Naisi Zhao
- Department of Public Health and Community Medicine, Tufts University School of Medicine, Tufts University, Boston, MA 02111, USA
| | - Devin C. Koestler
- Department of Biostatistics and Data Science, University of Kansas Medical Center, Kansas City, KS 66160, USA,University of Kansas Cancer Center, Kansas City, KS 66160, USA
| | - Jiayun Lu
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD 21205, USA
| | - Elizabeth A. Platz
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD 21205, USA,The Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins, Baltimore, MD 21231, USA
| | - Karl T. Kelsey
- Department of Epidemiology, Brown University, Providence, RI 02903, USA,Department of Pathology and Laboratory Medicine, Brown University, Providence, RI 02903, USA
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12
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Galiveti CR, Kuhnell D, Biesiada J, Zhang X, Kelsey KT, Takiar V, Tang AL, Wise‐Draper TM, Medvedovic M, Kasper S, Langevin SM. Small extravesicular microRNA in head and neck squamous cell carcinoma and its potential as a liquid biopsy for early detection. Head Neck 2023; 45:212-224. [PMID: 36271833 PMCID: PMC9742186 DOI: 10.1002/hed.27231] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Revised: 09/14/2022] [Accepted: 10/12/2022] [Indexed: 01/07/2023] Open
Abstract
BACKGROUND The objective was to assess secretion of small extracellular vesicular microRNA (exo-miRNA) in head and neck squamous cell carcinoma (HNSCC) according to human papillomavirus (HPV) status, and determine the translational potential as a liquid biopsy for early detection. METHODS This study employed a combination of cell culture and case-control study design using archival pretreatment serum. Small extracellular vesicles (sEV) were isolated from conditioned culture media and human serum samples via differential ultracentrifugation. miRNA-sequencing was performed on each sEV isolate. RESULTS There were clear exo-miRNA profiles that distinguished HNSCC cell lines from nonpathologic oral epithelial control cells. While there was some overlap among profiles across all samples, there were apparent differences in exo-miRNA profiles according to HPV-status. Importantly, differential exo-miRNA profiles were also apparent in serum from early-stage HNSCC cases relative to cancer-free controls. CONCLUSIONS Our findings indicate that exo-miRNA are highly dysregulated in HNSCC and support the potential of exo-miRNA as biomarkers for HNSCC.
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Affiliation(s)
- Chenna R. Galiveti
- Division of Epidemiology, Department of Environmental & Public Health SciencesUniversity of Cincinnati College of MedicineCincinnatiOhioUSA
| | - Damaris Kuhnell
- Division of Epidemiology, Department of Environmental & Public Health SciencesUniversity of Cincinnati College of MedicineCincinnatiOhioUSA
| | - Jacek Biesiada
- Division of Biostatistics and Bioinformatics, Department of Environmental & Public Health SciencesUniversity of Cincinnati College of MedicineCincinnatiOhioUSA
| | - Xiang Zhang
- Division of Environmental Genetics & Molecular Toxicology, Department of Environmental & Public Health SciencesUniversity of Cincinnati College of MedicineCincinnatiOhioUSA
| | - Karl T. Kelsey
- Department of EpidemiologyBrown University School of Public HealthProvidenceRhode IslandUSA
- Department of Pathology & Laboratory Medicine, Alpert Medical SchoolBrown UniversityProvidenceRhode IslandUSA
| | - Vinita Takiar
- Department of Radiation OncologyUniversity of Cincinnati College of MedicineCincinnatiOhioUSA
- Cincinnati VA Medical CenterCincinnatiOhioUSA
- University of Cincinnati Cancer CenterCincinnatiOhioUSA
| | - Alice L. Tang
- University of Cincinnati Cancer CenterCincinnatiOhioUSA
- Department of OtolaryngologyUniversity of Cincinnati College of MedicineCincinnatiOhioUSA
| | - Trisha M. Wise‐Draper
- University of Cincinnati Cancer CenterCincinnatiOhioUSA
- Division of Hematology & Oncology, Department of Internal MedicineUniversity of Cincinnati College of MedicineCincinnatiOhioUSA
| | - Mario Medvedovic
- Division of Biostatistics and Bioinformatics, Department of Environmental & Public Health SciencesUniversity of Cincinnati College of MedicineCincinnatiOhioUSA
- University of Cincinnati Cancer CenterCincinnatiOhioUSA
| | - Susan Kasper
- Division of Environmental Genetics & Molecular Toxicology, Department of Environmental & Public Health SciencesUniversity of Cincinnati College of MedicineCincinnatiOhioUSA
- University of Cincinnati Cancer CenterCincinnatiOhioUSA
| | - Scott M. Langevin
- Division of Epidemiology, Department of Environmental & Public Health SciencesUniversity of Cincinnati College of MedicineCincinnatiOhioUSA
- University of Cincinnati Cancer CenterCincinnatiOhioUSA
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13
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Salas LA, Kelsey KT. Hypertension Impacts Peripheral Blood Leukocyte Composition. Hypertension 2023; 80:54-56. [PMID: 36475861 PMCID: PMC9752179 DOI: 10.1161/hypertensionaha.122.20422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Lucas A Salas
- Department of Epidemiology, Geisel School of Medicine at Dartmouth, Dartmouth Cancer Center, Lebanon, NH (L.A.S.)
| | - Karl T Kelsey
- Department of Epidemiology and Pathology and Laboratory Medicine, Brown University, Providence, RI (K.T.K.)
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14
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Zhang Z, Butler R, Koestler DC, Bell-Glenn S, Warrier G, Molinaro AM, Christensen BC, Wiencke JK, Kelsey KT, Salas LA. Comparative analysis of the DNA methylation landscape in CD4, CD8, and B memory lineages. Clin Epigenetics 2022; 14:173. [PMID: 36522672 PMCID: PMC9753273 DOI: 10.1186/s13148-022-01399-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Accepted: 12/05/2022] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND There is considerable evidence that epigenetic mechanisms and DNA methylation are critical drivers of immune cell lineage differentiation and activation. However, there has been limited coordinated investigation of common epigenetic pathways among cell lineages. Further, it remains unclear if long-lived memory cell subtypes differentiate distinctly by cell lineages. RESULTS We used the Illumina EPIC array to investigate the consistency of DNA methylation in B cell, CD4 T, and CD8 T naïve and memory cells states. In the process of naïve to memory activation across the three lineages, we identify considerable shared epigenetic regulation at the DNA level for immune memory generation. Further, in central to effector memory differentiation, our analyses revealed specific CpG dinucleotides and genes in CD4 T and CD8 T cells with DNA methylation changes. Finally, we identified unique DNA methylation patterns in terminally differentiated effector memory (TEMRA) CD8 T cells compared to other CD8 T memory cell subtypes. CONCLUSIONS Our data suggest that epigenetic alterations are widespread and essential in generating human lymphocyte memory. Unique profiles are involved in methylation changes that accompany memory genesis in the three subtypes of lymphocytes.
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Affiliation(s)
- Ze Zhang
- Department of Epidemiology, Geisel School of Medicine at Dartmouth, Lebanon, NH, USA
| | - Rondi Butler
- Department of Epidemiology, Pathology and Laboratory Medicine, Brown University, Providence, RI, USA
| | - Devin C Koestler
- Department of Biostatistics and Data Science, University of Kansas Cancer Center, Kansas City, KS, USA
| | - Shelby Bell-Glenn
- Department of Biostatistics and Data Science, University of Kansas Cancer Center, Kansas City, KS, USA
| | - Gayathri Warrier
- Department of Neurosurgery, University of California, San Francisco, San Francisco, CA, USA
| | - Annette M Molinaro
- Department of Neurosurgery, University of California, San Francisco, San Francisco, CA, USA
| | - Brock C Christensen
- Department of Epidemiology, Geisel School of Medicine at Dartmouth, Lebanon, NH, USA
- Department of Molecular and Systems Biology, Geisel School of Medicine at Dartmouth, Lebanon, NH, USA
| | - John K Wiencke
- Department of Neurosurgery, University of California, San Francisco, San Francisco, CA, USA
| | - Karl T Kelsey
- Department of Epidemiology, Pathology and Laboratory Medicine, Brown University, Providence, RI, USA.
| | - Lucas A Salas
- Department of Epidemiology, Geisel School of Medicine at Dartmouth, Lebanon, NH, USA.
- Department of Molecular and Systems Biology, Geisel School of Medicine at Dartmouth, Lebanon, NH, USA.
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15
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Xu Y, Wang Z, Wei P, Gairola R, Kelsey KT, Sikora AG, Li G, Gu J. Hypermethylation of nc886 in HPV-positive oropharyngeal cancer and its clinical implications: An epigenome-wide association study. Mol Ther Nucleic Acids 2022; 30:596-605. [PMID: 36514351 PMCID: PMC9722395 DOI: 10.1016/j.omtn.2022.11.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Accepted: 11/14/2022] [Indexed: 11/18/2022]
Abstract
The incidence of oropharyngeal squamous cell carcinoma (OPSCC) has increased rapidly in the United States, driven by rising human papillomavirus (HPV) infections in the U.S. population. HPV-positive OPSCC patients have a better prognosis than HPV-negative patients. To gain insights into the unique biology of HPV(+) OPSCC that may contribute to its clinical behaviors, we performed a multi-stage epigenome-wide methylation profiling of leukocyte and tumor DNA in OPSCC patients and compared the methylation levels of CpG sites between HPV(+) and HPV(-) OPSCC patients. We identified and validated a significantly differentially methylated region (DMR) of 1,355 bp encompassing non-coding RNA 886 (nc886) gene and its promoter region. Nc886 is hypermethylated in both leukocytes and tumor DNA of HPV(+) OPSCC patients. Homozygous knockout of nc886 by CRISPR-Cas9 in head and neck cell lines was lethal, but nc886 could be knocked out on the background of protein kinase R (PKR) knockout. Our data suggest that HPV induces nc886 hypermethylation, and nc886 acts as both a viral sensor and a tumor sensor in OPSCC patients and contribute to the better prognosis of HPV(+) OPSCC patients. Nc886 may become a therapeutic target in OPSCC.
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Affiliation(s)
- Yifan Xu
- Department of Epidemiology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Ziqiao Wang
- Department of Biostatistics, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Peng Wei
- Department of Biostatistics, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Richa Gairola
- Department of Epidemiology, Brown University School of Public Health, Providence, RI 02912, USA
| | - Karl T. Kelsey
- Department of Epidemiology, Brown University School of Public Health, Providence, RI 02912, USA
- Pathology and Laboratory Medicine, Brown University School of Public Health, Providence, RI 02912, USA
| | - Andrew G. Sikora
- Department of Head and Neck Surgery, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
- Department of Immunology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Guojun Li
- Department of Head and Neck Surgery, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Jian Gu
- Department of Epidemiology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
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16
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Tang E, Wiencke JK, Warrier G, Hansen H, McCoy L, Rice T, Bracci PM, Wrensch M, Taylor JW, Clarke JL, Koestler DC, Salas LA, Christensen BC, Kelsey KT, Molinaro AM. Evaluation of cross-platform compatibility of a DNA methylation-based glucocorticoid response biomarker. Clin Epigenetics 2022; 14:136. [PMID: 36307860 PMCID: PMC9617416 DOI: 10.1186/s13148-022-01352-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Accepted: 10/11/2022] [Indexed: 11/10/2022] Open
Abstract
Background Identifying blood-based DNA methylation patterns is a minimally invasive way to detect biomarkers in predicting age, characteristics of certain diseases and conditions, as well as responses to immunotherapies. As microarray platforms continue to evolve and increase the scope of CpGs measured, new discoveries based on the most recent platform version and how they compare to available data from the previous versions of the platform are unknown. The neutrophil dexamethasone methylation index (NDMI 850) is a blood-based DNA methylation biomarker built on the Illumina MethylationEPIC (850K) array that measures epigenetic responses to dexamethasone (DEX), a synthetic glucocorticoid often administered for inflammation. Here, we compare the NDMI 850 to one we built using data from the Illumina Methylation 450K (NDMI 450). Results The NDMI 450 consisted of 22 loci, 15 of which were present on the NDMI 850. In adult whole blood samples, the linear composite scores from NDMI 450 and NDMI 850 were highly correlated and had equivalent predictive accuracy for detecting DEX exposure among adult glioma patients and non-glioma adult controls. However, the NDMI 450 scores of newborn cord blood were significantly lower than NDMI 850 in samples measured with both assays. Conclusions We developed an algorithm that reproduces the DNA methylation glucocorticoid response score using 450K data, increasing the accessibility for researchers to assess this biomarker in archived or publicly available datasets that use the 450K version of the Illumina BeadChip array. However, the NDMI850 and NDMI450 do not give similar results in cord blood, and due to data availability limitations, results from sample types of newborn cord blood should be interpreted with care. Supplementary Information The online version contains supplementary material available at 10.1186/s13148-022-01352-1.
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17
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Zhang Z, Wiencke JK, Kelsey KT, Koestler DC, Christensen BC, Salas LA. HiTIMED: hierarchical tumor immune microenvironment epigenetic deconvolution for accurate cell type resolution in the tumor microenvironment using tumor-type-specific DNA methylation data. J Transl Med 2022; 20:516. [DOI: 10.1186/s12967-022-03736-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2022] [Accepted: 10/30/2022] [Indexed: 11/11/2022] Open
Abstract
Abstract
Background
Cellular compositions of solid tumor microenvironments are heterogeneous, varying across patients and tumor types. High-resolution profiling of the tumor microenvironment cell composition is crucial to understanding its biological and clinical implications. Previously, tumor microenvironment gene expression and DNA methylation-based deconvolution approaches have been shown to deconvolve major cell types. However, existing methods lack accuracy and specificity to tumor type and include limited identification of individual cell types.
Results
We employed a novel tumor-type-specific hierarchical model using DNA methylation data to deconvolve the tumor microenvironment with high resolution, accuracy, and specificity. The deconvolution algorithm is named HiTIMED. Seventeen cell types from three major tumor microenvironment components can be profiled (tumor, immune, angiogenic) by HiTIMED, and it provides tumor-type-specific models for twenty carcinoma types. We demonstrate the prognostic significance of cell types that other tumor microenvironment deconvolution methods do not capture.
Conclusion
We developed HiTIMED, a DNA methylation-based algorithm, to estimate cell proportions in the tumor microenvironment with high resolution and accuracy. HiTIMED deconvolution is amenable to archival biospecimens providing high-resolution profiles enabling to study of clinical and biological implications of variation and composition of the tumor microenvironment.
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18
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Braun JM, Papandonatos GD, Li N, Sears CG, Buckley JP, Cecil KM, Chen A, Eaton CB, Kalkwarf HJ, Kelsey KT, Lanphear BP, Yolton K. Physical activity modifies the relation between gestational perfluorooctanoic acid exposure and adolescent cardiometabolic risk. Environ Res 2022; 214:114021. [PMID: 35952751 PMCID: PMC9637371 DOI: 10.1016/j.envres.2022.114021] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Revised: 07/27/2022] [Accepted: 07/29/2022] [Indexed: 06/11/2023]
Abstract
OBJECTIVE Exposure to per- and polyfluoroalkyl substances (PFAS) - endocrine disrupting chemicals - may increase cardiometabolic risk. We evaluated whether adolescent lifestyle factors modified associations between gestational PFAS exposure and cardiometabolic risk using a prospective cohort study. METHODS In 166 mother-child pairs (HOME Study), we measured concentrations of four PFAS in maternal serum collected during pregnancy. When children were age 12 years, we calculated cardiometabolic risk scores from visceral adiposity area, blood pressure, and fasting serum biomarkers. We assessed adolescent physical activity and Healthy Eating Index scores using the Physical Activity Questionnaire for Older Children (PAQ-C), actigraphy, and 24-h diet recalls. Using multivariable linear regression and weighted quantile sum regression, we examined whether physical activity or diet modified covariate-adjusted associations of PFAS and their mixture with cardiometabolic risk scores. RESULTS Physical activity modified associations between perfluorooctanoic acid (PFOA) and cardiometabolic risk scores. Each doubling of PFOA was associated with worse cardiometabolic risk scores among children with PAQ-C scores < median (β:1.4; 95% CI:0.5, 2.2, n = 82), but not among those with PAQ-C scores ≥ median (β: 0.2; 95% CI: 1.2, 0.7, n = 84) (interaction p-value = 0.01). Associations were most prominent for insulin resistance, leptin-adiponectin ratio, and visceral fat area. We observed results suggesting that physical activity modified the association of PFAS mixture with cardiometabolic risk scores, insulin resistance, and visceral fat area (interaction p-values = 0.17, 0.07, and 0.10, respectively); however, the 95% CIs of the interaction terms included the null value. We observed similar, but attenuated patterns for PFOA and actigraphy-based measures of physical activity. Diet did not modify any associations. Physical activity or diet did not modify associations for other PFAS. CONCLUSIONS Childhood physical activity modified associations of prenatal serum PFOA concentrations with children's cardiometabolic risk in this cohort, indicating that lifestyle interventions may ameliorate the adverse effects of PFOA exposure.
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Affiliation(s)
- Joseph M Braun
- Department of Epidemiology, Brown University, Providence, RI, 02912, Box G-S121, United States.
| | - George D Papandonatos
- Department of Biostatistics, School of Public Health, Brown University, Providence, RI, United States
| | - Nan Li
- Department of Epidemiology, Brown University, Providence, RI, 02912, Box G-S121, United States
| | - Clara G Sears
- Division of Environmental Medicine, Department of Medicine, University of Louisville, Louisville, KY, United States
| | - Jessie P Buckley
- Department of Environmental Health and Engineering, Johns Hopkins University School of Public Health, Baltimore, MD, United States
| | - Kim M Cecil
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, United States; Department of Radiology, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, OH, United States
| | - Aimin Chen
- Department of Biostatistics, Epidemiology and Informatics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States
| | - Charles B Eaton
- Department of Epidemiology, Brown University, Providence, RI, 02912, Box G-S121, United States; Department of Family Medicine, Warren Alpert Medical School of Brown University, Providence, RI, United States; Kent Memorial Hospital, Warwick, RI, United States
| | - Heidi J Kalkwarf
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, United States; Division of Gastroenterology, Hepatology and Nutrition, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, United States
| | - Karl T Kelsey
- Department of Epidemiology, Brown University, Providence, RI, 02912, Box G-S121, United States; Department of Pathology and Laboratory Medicine, Brown University, Providence, RI, United States
| | - Bruce P Lanphear
- Faculty of Health Sciences, Simon Fraser University, Burnaby, British Columbia, Canada
| | - Kimberly Yolton
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, United States
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19
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Wiencke JK, Molinaro AM, Warrier G, Rice T, Clarke J, Taylor JW, Wrensch M, Hansen H, McCoy L, Tang E, Tamaki SJ, Tamaki CM, Nissen E, Bracci P, Salas LA, Koestler DC, Christensen BC, Zhang Z, Kelsey KT. DNA methylation as a pharmacodynamic marker of glucocorticoid response and glioma survival. Nat Commun 2022; 13:5505. [PMID: 36127421 PMCID: PMC9486797 DOI: 10.1038/s41467-022-33215-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Accepted: 09/08/2022] [Indexed: 12/15/2022] Open
Abstract
Assessing individual responses to glucocorticoid drug therapies that compromise immune status and affect survival outcomes in neuro-oncology is a great challenge. Here we introduce a blood-based neutrophil dexamethasone methylation index (NDMI) that provides a measure of the epigenetic response of subjects to dexamethasone. This marker outperforms conventional approaches based on leukocyte composition as a marker of glucocorticoid response. The NDMI is associated with low CD4 T cells and the accumulation of monocytic myeloid-derived suppressor cells and also serves as prognostic factor in glioma survival. In a non-glioma population, the NDMI increases with a history of prednisone use. Therefore, it may also be informative in other conditions where glucocorticoids are employed. We conclude that DNA methylation remodeling within the peripheral immune compartment is a rich source of clinically relevant markers of glucocorticoid response.
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Affiliation(s)
- J K Wiencke
- Department of Neurological Surgery, University of California San Francisco, San Francisco, CA, USA.
| | - Annette M Molinaro
- Department of Neurological Surgery, University of California San Francisco, San Francisco, CA, USA
| | - Gayathri Warrier
- Department of Neurological Surgery, University of California San Francisco, San Francisco, CA, USA
| | - Terri Rice
- Department of Neurological Surgery, University of California San Francisco, San Francisco, CA, USA
| | - Jennifer Clarke
- Department of Neurological Surgery, University of California San Francisco, San Francisco, CA, USA
- Department of Neurology, University of California San Francisco, San Francisco, CA, USA
| | - Jennie W Taylor
- Department of Neurological Surgery, University of California San Francisco, San Francisco, CA, USA
- Department of Neurology, University of California San Francisco, San Francisco, CA, USA
| | - Margaret Wrensch
- Department of Neurological Surgery, University of California San Francisco, San Francisco, CA, USA
| | - Helen Hansen
- Department of Neurological Surgery, University of California San Francisco, San Francisco, CA, USA
| | - Lucie McCoy
- Department of Neurological Surgery, University of California San Francisco, San Francisco, CA, USA
| | - Emily Tang
- Department of Epidemiology and Biostatistics, University of California San Francisco, San Francisco, CA, USA
| | - Stan J Tamaki
- Parnassus Flow Cytometry CoLab, University of California San Francisco, San Francisco, CA, USA
| | - Courtney M Tamaki
- Parnassus Flow Cytometry CoLab, University of California San Francisco, San Francisco, CA, USA
| | - Emily Nissen
- Department of Biostatistics & Data Science, University of Kansas Medical Center, Kansas City, KS, USA
| | - Paige Bracci
- Department of Epidemiology and Biostatistics, University of California San Francisco, San Francisco, CA, USA
| | - Lucas A Salas
- Department of Epidemiology, Geisel School of Medicine, Dartmouth College, Lebanon, NH, USA
| | - Devin C Koestler
- Department of Biostatistics & Data Science, University of Kansas Medical Center, Kansas City, KS, USA
| | - Brock C Christensen
- Department of Epidemiology, Geisel School of Medicine, Dartmouth College, Lebanon, NH, USA
- Department of Molecular and Systems Biology, Geisel School of Medicine, Dartmouth College, Lebanon, NH, USA
- Department of Community and Family Medicine, Geisel School of Medicine, Dartmouth College, Lebanon, NH, USA
| | - Ze Zhang
- Department of Epidemiology, Geisel School of Medicine, Dartmouth College, Lebanon, NH, USA
| | - Karl T Kelsey
- Department of Epidemiology, Brown University, Providence, RI, USA
- Department of Pathology and Laboratory Medicine, Brown University, Providence, RI, USA
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20
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Patti MA, Kelsey KT, MacFarlane AJ, Papandonatos GD, Arbuckle TE, Ashley-Martin J, Fisher M, Fraser WD, Lanphear BP, Muckle G, Braun JM. Maternal Folate Status and the Relation between Gestational Arsenic Exposure and Child Health Outcomes. Int J Environ Res Public Health 2022; 19:11332. [PMID: 36141604 PMCID: PMC9517145 DOI: 10.3390/ijerph191811332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 09/02/2022] [Accepted: 09/03/2022] [Indexed: 06/16/2023]
Abstract
Gestational arsenic exposure adversely impacts child health. Folate-mediated 1-carbon metabolism facilitates urinary excretion of arsenic and may prevent arsenic-related adverse health outcomes. We investigated the potential for maternal folate status to modify associations between gestational arsenic exposure and child health. We used data from 364 mother-child pairs in the MIREC study, a prospective pan-Canadian cohort. During pregnancy, we measured first trimester urinary arsenic concentrations, plasma folate biomarkers, and folic acid supplementation intake. At age 3 years, we evaluated twelve neurodevelopmental and anthropometric features. Using latent profile analysis and multinomial regression, we developed phenotypic profiles of child health, estimated covariate-adjusted associations between arsenic and these phenotypic profiles, and evaluated whether folate status modified these associations. We identified three phenotypic profiles of neurodevelopment and three of anthropometry, ranging from less to more optimal child health. Gestational arsenic was associated with decreased odds of optimal neurodevelopment. Maternal folate status did not modify associations of arsenic with neurodevelopmental phenotypic profiles, but gestational arsenic was associated with increased odds of excess adiposity among those who exceed recommendations for folic acid (>1000 μg/day). However, arsenic exposure was low and folate status was high. Gestational arsenic exposure may adversely impact child neurodevelopment and anthropometry, and maternal folate status may not modify these associations; however, future work should examine these associations in more arsenic-exposed or lower folate-status populations.
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Affiliation(s)
- Marisa A. Patti
- Department of Epidemiology, Brown University, 121 S Main St., Providence, RI 02903, USA
| | - Karl T. Kelsey
- Department of Epidemiology, Brown University, 121 S Main St., Providence, RI 02903, USA
| | - Amanda J. MacFarlane
- Nutrition Research Division, Health Canada, 251 Sir Frederick Banting Driveway, Ottawa, ON K1A 0K9, Canada
- Department of Biology, Carleton University, 1125 Colonel By Dr., Ottawa, ON K1S 5B6, Canada
| | - George D. Papandonatos
- Department of Biostatistics, Brown University, 121 S Main St., Providence, RI 02903, USA
| | - Tye E. Arbuckle
- Environmental Health Science and Research Bureau, Healthy Environments and Consumer Branch, Health Canada, 50 Colombine Driveway, Ottawa, ON K1A 0K9, Canada
| | - Jillian Ashley-Martin
- Environmental Health Science and Research Bureau, Healthy Environments and Consumer Branch, Health Canada, 50 Colombine Driveway, Ottawa, ON K1A 0K9, Canada
| | - Mandy Fisher
- Environmental Health Science and Research Bureau, Healthy Environments and Consumer Branch, Health Canada, 50 Colombine Driveway, Ottawa, ON K1A 0K9, Canada
| | - William D. Fraser
- Department D’obstétrique et Gynécologie, Université de Sherbrooke, 2500 Bd de L’Université, Sherbrooke, QC J1K 2R1, Canada
| | - Bruce P. Lanphear
- Department of Health Sciences, Simon Fraser University, 515 W Haastings St., Vancouver, BC V5A 1S6, Canada
| | - Gina Muckle
- School of Psychology, Université Laval, Ville de Québec, 2325 Rue de L’Université, Québec, QC G1V 0B4, Canada
| | - Joseph M. Braun
- Department of Epidemiology, Brown University, 121 S Main St., Providence, RI 02903, USA
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21
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Nelson HH, Contestabile E, Hunter-Schlichting D, Koestler D, Pawlita M, Waterboer T, Christensen BC, Petersen CL, Miller JS, Kelsey KT. Human cytomegalovirus alters immune cell profile with potential implications for patient survival in head and neck cancer. Carcinogenesis 2022; 43:430-436. [PMID: 35259245 PMCID: PMC9167029 DOI: 10.1093/carcin/bgac021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Revised: 01/07/2022] [Accepted: 03/07/2022] [Indexed: 11/13/2022] Open
Abstract
Cytomegalovirus (CMV) is a highly prevalent human herpes virus that exerts a strong influence on immune repertoire which may influence cancer risk. We have tested whether CMV immunoglobulin G (IgG) serostatus is associated with immune cell proportions (n = 132 population controls), human papillomavirus (HPV) co-infection and head and neck cancer risk (n = 184 cancer cases and 188 controls) and patient survival. CMV status was not associated with the proportion of Natural Killer cells, B cells or the neutrophil-to-lymphocyte ratio. However, CD8+ T cells increased with increasing categories of IgG titers (P =1.7 × 10-10), and titers were inversely associated with the CD4:CD8 ratio (P = 5.6 × 10-5). Despite these differences in T cell proportions, CMV was not associated with HPV16 co-infection. CMV seropositivity was similar in cases (52%) and controls (47%) and was not associated with patient survival (hazard ratio [HR] 1.14, 95% confidence interval [CI]: 0.70 to 1.86). However, those patients with the highest titers had the worst survival (HR 1.91, 95% CI: 1.13 to 3.23). Tumor-based data from The Cancer Genome Atlas demonstrated that the presence of CMV transcripts was associated with worse patient survival (HR 1.79, 95% CI: 0.96 to 2.78). These findings confirm that a history of CMV infection alters T cell proportions, but this does not translate to HPV16 co-infection or head and neck cancer risk. Our data suggest that high titers and active CMV virus in the tumor environment may confer worse survival.
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Affiliation(s)
- Heather H Nelson
- Masonic Cancer Center, University of Minnesota, Minneapolis, MN, USA
- Division of Epidemiology and Community Health, School of Public Health, University of Minnesota, Minneapolis, MN, USA
| | - Emma Contestabile
- Division of Epidemiology and Community Health, School of Public Health, University of Minnesota, Minneapolis, MN, USA
| | - DeVon Hunter-Schlichting
- Masonic Cancer Center, University of Minnesota, Minneapolis, MN, USA
- Division of Epidemiology and Community Health, School of Public Health, University of Minnesota, Minneapolis, MN, USA
| | - Devin Koestler
- Department of Biostatistics, University of Kansas Medical Center, Kansas City, KS, USA
- University of Kansas Cancer Center, Kansas City, KS, USA
| | - Michael Pawlita
- Infections and Cancer Epidemiology, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Tim Waterboer
- Infections and Cancer Epidemiology, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Brock C Christensen
- Department of Epidemiology, Geisel School of Medicine at Dartmouth, Lebanon, NH, USA
- Department of Molecular and Systems Biology, Geisel School of Medicine at Dartmouth, Lebanon, NH, USA
| | - Curtis L Petersen
- Department of Epidemiology, Geisel School of Medicine at Dartmouth, Lebanon, NH, USA
- Department of Molecular and Systems Biology, Geisel School of Medicine at Dartmouth, Lebanon, NH, USA
| | - Jeffrey S Miller
- Masonic Cancer Center, University of Minnesota, Minneapolis, MN, USA
- Division of Hematology, Oncology and Transplantation, School of Medicine, University of Minnesota, Minneapolis, MN, USA
| | - Karl T Kelsey
- Department of Epidemiology, Brown University, Providence, RI, USA
- Department of Pathology and Laboratory Medicine, Brown University, Providence, RI, USA
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22
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Cheng Z, Li Y, Young JL, Cheng N, Yang C, Papandonatos GD, Kelsey KT, Wise JP, Shi K, Zheng T, Liu S, Bai Y. Long-term association of serum selenium levels and the diabetes risk: Findings from a case-control study nested in the prospective Jinchang Cohort. Sci Total Environ 2022; 818:151848. [PMID: 34822883 PMCID: PMC8909917 DOI: 10.1016/j.scitotenv.2021.151848] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Revised: 11/16/2021] [Accepted: 11/17/2021] [Indexed: 05/07/2023]
Abstract
An increasing body of evidence implicates high levels of selenium intake in the development of diabetes, although prospective studies remain sparse. We conducted a nested case-control study of 622 diabetes incident cases and 622-age, sex, and follow-up time-matched controls in the prospective Jinchang cohort of 48,001 participants with a median of 5.8 years of follow-up. Inductively coupled plasma mass spectrometry (ICP-MS) was used to measure all 622 case-control pairs' baseline serum levels of selenium (Se), which were then categorized into quartiles based on the frequency distribution among the controls. Multivariable adjusted conditional logistic regression and restricted cubic splines (RCS) models were applied to evaluate independent odds ratios (OR) as estimates for relative risks (RR) of diabetes according to quartiles (Q) of selenium levels. Compared to the lowest quartile (Q1 as reference), significantly greater diabetes risks (with 95% confidence interval) were observed in Q3 (OR = 1.62, 1.17-2.35) and Q4 (OR = 1.79, 1.21-2.64). Sub-analyses showed these increased risks of diabetes by serum levels of Se. appeared to differ by sex, age, BMI status, history of hypertension, and dyslipidemia. Further, application of RSC models showed that serum Se levels between 95 and 120 μg/L were significantly and positively associated with diabetes risk whereas no apparent relation exists when Se levels were under 95 μg/L in this cohort population.
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Affiliation(s)
- Zhiyuan Cheng
- School of Public Health and Emergency Management, Southern University of Science and Technology, 1088 Xueyuan Street, Shenzhen 518055, China
| | - Yuanyuan Li
- Key Laboratory of Environment and Health, Ministries of Education and Environmental Protection, and State Key Laboratory of Environmental Health (Incubation), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Street, Wuhan, Hubei, 430030, China
| | - Jamie L Young
- Department of Pharmacology and Toxicology, School of Medicine, University of Louisville, 505 South Hancock Street, Louisville, KY 40202, USA
| | - Ning Cheng
- School of Basic Medical Science, Lanzhou University, 199 Donggang West Street, Lanzhou, Gansu 730000, China
| | - Chenhui Yang
- Key Laboratory of Environment and Health, Ministries of Education and Environmental Protection, and State Key Laboratory of Environmental Health (Incubation), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Street, Wuhan, Hubei, 430030, China
| | - George D Papandonatos
- Department of Biostatistics, School of Public Health, Brown University, 121 South Main Street, Providence, RI 02901, USA
| | - Karl T Kelsey
- Department of Epidemiology, School of Public Health, Brown University, 121 South Main Street, Providence, RI 02901, USA
| | - John Pierce Wise
- Department of Pharmacology and Toxicology, School of Medicine, University of Louisville, 505 South Hancock Street, Louisville, KY 40202, USA; Wise Laboratory of Environmental and Genetic Toxicology, University of Louisville, 500 S. Preston St., 55A, Room 1422, Louisville, KY 40202, USA
| | - Kunchong Shi
- Department of Epidemiology, School of Public Health, Brown University, 121 South Main Street, Providence, RI 02901, USA
| | - Tongzhang Zheng
- Department of Epidemiology, School of Public Health, Brown University, 121 South Main Street, Providence, RI 02901, USA
| | - Simin Liu
- Department of Epidemiology, School of Public Health, Brown University, 121 South Main Street, Providence, RI 02901, USA
| | - Yana Bai
- Department of Epidemiology and Statistics, School of Public Health, Lanzhou University, 199 Donggang West Street, Lanzhou, Gansu 730000, China.
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23
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Liu Y, Eliot MN, Papandonatos GD, Kelsey KT, Fore R, Langevin S, Buckley J, Chen A, Lanphear BP, Cecil KM, Yolton K, Hivert MF, Sagiv SK, Baccarelli AA, Oken E, Braun JM. Gestational Perfluoroalkyl Substance Exposure and DNA Methylation at Birth and 12 Years of Age: A Longitudinal Epigenome-Wide Association Study. Environ Health Perspect 2022; 130:37005. [PMID: 35266797 PMCID: PMC8911098 DOI: 10.1289/ehp10118] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Revised: 02/21/2022] [Accepted: 02/23/2022] [Indexed: 05/31/2023]
Abstract
BACKGROUND DNA methylation alterations may underlie associations between gestational perfluoroalkyl substances (PFAS) exposure and later-life health outcomes. To the best of our knowledge, no longitudinal studies have examined the associations between gestational PFAS and DNA methylation. OBJECTIVES We examined associations of gestational PFAS exposure with longitudinal DNA methylation measures at birth and in adolescence using the Health Outcomes and Measures of the Environment (HOME) Study (2003-2006; Cincinnati, Ohio). METHODS We quantified serum concentrations of perfluorooctanoate (PFOA), perfluorooctane sulfonate (PFOS), perfluorononanoate (PFNA), and perfluorohexane sulfonate (PFHxS) in mothers during pregnancy. We measured DNA methylation in cord blood (n=266) and peripheral leukocytes at 12 years of age (n=160) using the Illumina HumanMethylation EPIC BeadChip. We analyzed associations between log2-transformed PFAS concentrations and repeated DNA methylation measures using linear regression with generalized estimating equations. We included interaction terms between children's age and gestational PFAS. We performed Gene Ontology enrichment analysis to identify molecular pathways. We used Project Viva (1999-2002; Boston, Massachusetts) to replicate significant associations. RESULTS After adjusting for covariates, 435 cytosine-guanine dinucleotide (CpG) sites were associated with PFAS (false discovery rate, q<0.05). Specifically, we identified 2 CpGs for PFOS, 12 for PFOA, 8 for PFHxS, and 413 for PFNA; none overlapped. Among these, 2 CpGs for PFOA and 4 for PFNA were replicated in Project Viva. Some of the PFAS-associated CpG sites annotated to gene regions related to cancers, cognitive health, cardiovascular disease, and kidney function. We found little evidence that the associations between PFAS and DNA methylation differed by children's age. DISCUSSION In these longitudinal data, PFAS biomarkers were associated with differences in several CpGs at birth and at 12 years of age in or near genes linked to some PFAS-associated health outcomes. Future studies should examine whether DNA methylation mediates associations between gestational PFAS exposure and health. https://doi.org/10.1289/EHP10118.
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Affiliation(s)
- Yun Liu
- Department of Epidemiology, Brown University School of Public Health, Providence, Rhode Island, USA
| | - Melissa N. Eliot
- Department of Epidemiology, Brown University School of Public Health, Providence, Rhode Island, USA
| | - George D. Papandonatos
- Department of Biostatistics, Brown University School of Public Health, Providence, Rhode Island, USA
| | - Karl T. Kelsey
- Department of Epidemiology, Brown University School of Public Health, Providence, Rhode Island, USA
- Department of Laboratory Medicine and Pathology, Brown University, Providence, Rhode Island, USA
| | - Ruby Fore
- Department of Population Medicine, Harvard Pilgrim Health Care Institute, Harvard Medical School, Boston, Massachusetts, USA
| | - Scott Langevin
- Department of Environmental & Public Health Sciences, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Jessie Buckley
- Department of Environmental Health and Engineering, Johns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - Aimin Chen
- Department of Biostatistics, Epidemiology and Informatics, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA
| | - Bruce P. Lanphear
- Faculty of Health Sciences, Simon Fraser University, Burnaby, British Columbia, Canada
| | - Kim M. Cecil
- Department of Environmental & Public Health Sciences, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
- Department of Radiology, Cincinnati Children’s Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
- Department of Pediatrics, Cincinnati Children’s Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Kimberly Yolton
- Department of Pediatrics, Cincinnati Children’s Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Marie-France Hivert
- Department of Population Medicine, Harvard Pilgrim Health Care Institute, Harvard Medical School, Boston, Massachusetts, USA
- Diabetes Unit, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Sharon K. Sagiv
- Department of Epidemiology, Berkeley School of Public Health, University of California, Berkeley, California, USA
| | - Andrea A. Baccarelli
- Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, New York, New York, USA
| | - Emily Oken
- Department of Population Medicine, Harvard Pilgrim Health Care Institute, Harvard Medical School, Boston, Massachusetts, USA
| | - Joseph M. Braun
- Department of Epidemiology, Brown University School of Public Health, Providence, Rhode Island, USA
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24
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Berglund-Brown I, Nissen E, Koestler DC, Butler RA, Eliot MN, Padbury JF, Salas LA, Molinaro AM, Christensen BC, Wiencke JK, Kelsey KT. A core of differentially methylated CpG loci in gMDSCs isolated from neonatal and adult sources. Clin Epigenetics 2022; 14:27. [PMID: 35189960 PMCID: PMC8862379 DOI: 10.1186/s13148-022-01247-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Accepted: 02/11/2022] [Indexed: 11/15/2022] Open
Abstract
BACKGROUND Myeloid-derived suppressor cells (MDSCs), which include monocytic (mMDSCs) and granulocytic (gMDSCs) cells, are an immunosuppressive, heterogeneous population of cells upregulated in cancer and other pathologic conditions, in addition to normal conditions of stress. The origin of MDSCs is debated, and the regulatory pattern responsible for gMDSC differentiation remains unknown. Since DNA methylation (DNAm) contributes to lineage differentiation, we have investigated whether it contributes to the acquisition of the gMDSC phenotype. RESULTS Using the Illumina EPIC array to measure DNAm of gMDSCs and neutrophils from diverse neonatal and adult blood sources, we found 189 differentially methylated CpGs between gMDSCs and neutrophils with a core of ten differentially methylated CpGs that were consistent across both sources of cells. Genes associated with these loci that are involved in immune responses include VCL, FATS, YAP1, KREMEN2, UBTF, MCC-1, and EFCC1. In two cancer patient groups that reflected those used to develop the methylation markers (head and neck squamous cell carcinoma (HNSCC) and glioma), all of the CpG loci were differentially methylated, reaching statistical significance in glioma cases and controls, while one was significantly different in the smaller HNSCC group. CONCLUSIONS Our findings indicate that gMDSCs have a core of distinct DNAm alterations, informing future research on gMDSC differentiation and function.
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Affiliation(s)
| | - Emily Nissen
- Department of Biostatistics and Data Science, University of Kansas Medical Center, Kansas City, KS, USA
| | - Devin C Koestler
- Department of Biostatistics and Data Science, University of Kansas Medical Center, Kansas City, KS, USA
| | - Rondi A Butler
- Departments of Epidemiology, and Pathology and Laboratory Medicine, Brown University, 70 Ship Street, Providence, RI, 02912, USA
| | - Melissa N Eliot
- Departments of Epidemiology, and Pathology and Laboratory Medicine, Brown University, 70 Ship Street, Providence, RI, 02912, USA
| | - James F Padbury
- Warren Alpert Medical School, Brown University, Providence, RI, USA
| | - Lucas A Salas
- Department of Epidemiology, Geisel School of Medicine at Dartmouth, Lebanon, NH, USA
| | - Annette M Molinaro
- Department of Neurological Surgery, University of California San Francisco, San Francisco, CA, USA
| | - Brock C Christensen
- Department of Epidemiology, Geisel School of Medicine at Dartmouth, Lebanon, NH, USA
- Departments of Molecular and Systems Biology, and Community and Family Medicine, Geisel School of Medicine at Dartmouth, Lebanon, NH, USA
| | - John K Wiencke
- Department of Neurological Surgery, University of California San Francisco, San Francisco, CA, USA
| | - Karl T Kelsey
- Departments of Epidemiology, and Pathology and Laboratory Medicine, Brown University, 70 Ship Street, Providence, RI, 02912, USA.
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25
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Salas LA, Zhang Z, Koestler DC, Butler RA, Hansen HM, Molinaro AM, Wiencke JK, Kelsey KT, Christensen BC. Enhanced cell deconvolution of peripheral blood using DNA methylation for high-resolution immune profiling. Nat Commun 2022; 13:761. [PMID: 35140201 PMCID: PMC8828780 DOI: 10.1038/s41467-021-27864-7] [Citation(s) in RCA: 78] [Impact Index Per Article: 39.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2021] [Accepted: 12/20/2021] [Indexed: 12/12/2022] Open
Abstract
DNA methylation microarrays can be employed to interrogate cell-type composition in complex tissues. Here, we expand reference-based deconvolution of blood DNA methylation to include 12 leukocyte subtypes (neutrophils, eosinophils, basophils, monocytes, naïve and memory B cells, naïve and memory CD4 + and CD8 + T cells, natural killer, and T regulatory cells). Including derived variables, our method provides 56 immune profile variables. The IDOL (IDentifying Optimal Libraries) algorithm was used to identify libraries for deconvolution of DNA methylation data for current and previous platforms. The accuracy of deconvolution estimates obtained using our enhanced libraries was validated using artificial mixtures and whole-blood DNA methylation with known cellular composition from flow cytometry. We applied our libraries to deconvolve cancer, aging, and autoimmune disease datasets. In conclusion, these libraries enable a detailed representation of immune-cell profiles in blood using only DNA and facilitate a standardized, thorough investigation of immune profiles in human health and disease.
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Affiliation(s)
- Lucas A Salas
- Department of Epidemiology, Geisel School of Medicine, Dartmouth College, Lebanon, NH, USA
| | - Ze Zhang
- Department of Epidemiology, Geisel School of Medicine, Dartmouth College, Lebanon, NH, USA
| | - Devin C Koestler
- Department of Biostatistics & Data Science, University of Kansas Medical Center, Kansas City, KS, USA
| | - Rondi A Butler
- Departments of Epidemiology and Pathology and Laboratory Medicine, Brown University, Providence, RI, USA
| | - Helen M Hansen
- Department of Neurological Surgery, University of California San Francisco, San Francisco, CA, USA
| | - Annette M Molinaro
- Department of Neurological Surgery, University of California San Francisco, San Francisco, CA, USA
| | - John K Wiencke
- Department of Neurological Surgery, University of California San Francisco, San Francisco, CA, USA
- Institute for Human Genetics, University of California San Francisco, San Francisco, CA, USA
| | - Karl T Kelsey
- Departments of Epidemiology and Pathology and Laboratory Medicine, Brown University, Providence, RI, USA.
| | - Brock C Christensen
- Department of Epidemiology, Geisel School of Medicine, Dartmouth College, Lebanon, NH, USA.
- Department of Molecular and Systems Biology, Geisel School of Medicine, Dartmouth College, Lebanon, NH, USA.
- Department of Community and Family Medicine, Geisel School of Medicine, Dartmouth College, Lebanon, NH, USA.
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26
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Zhang Z, Lee MK, Perreard L, Kelsey KT, Christensen BC, Salas LA. Navigating the hydroxymethylome: experimental biases and quality control tools for the tandem bisulfite and oxidative bisulfite Illumina microarrays. Epigenomics 2022; 14:139-152. [PMID: 35029129 PMCID: PMC8914583 DOI: 10.2217/epi-2021-0490] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
Aim: Tandem bisulfite (BS) and oxidative bisulfite (oxBS) conversion on DNA followed by hybridization to Infinium HumanMethylation BeadChips allows nucleotide resolution of 5-hydroxymethylcytosine genome-wide. Here, the authors compared data quality acquired from BS-treated and oxBS-treated samples. Materials & methods: Raw BeadArray data from 417 pairs of samples across 12 independent datasets were included in the study. Probe call rates were compared between paired BS and oxBS treatments controlling for technical variables. Results: oxBS-treated samples had a significantly lower call rate. Among technical variables, DNA-specific extraction kits performed better with higher call rates after oxBS conversion. Conclusion: The authors emphasize the importance of quality control during oxBS conversion to minimize information loss and recommend using a DNA-specific extraction kit for DNA extraction and an oxBSQC package for data preprocessing.
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Affiliation(s)
- Ze Zhang
- Department of Epidemiology, Geisel School of Medicine, Dartmouth College, Lebanon, 03756 NH, USA
| | - Min Kyung Lee
- Department of Epidemiology, Geisel School of Medicine, Dartmouth College, Lebanon, 03756 NH, USA
| | - Laurent Perreard
- Department of Molecular & Systems Biology, Geisel School of Medicine, Dartmouth College, Lebanon, 03756 NH, USA
| | - Karl T Kelsey
- Department of Epidemiology, Department of Pathology & Laboratory Medicine, Brown University School of Public Health, Providence, 02912 RI, USA
| | - Brock C Christensen
- Department of Epidemiology, Geisel School of Medicine, Dartmouth College, Lebanon, 03756 NH, USA,Department of Molecular & Systems Biology, Geisel School of Medicine, Dartmouth College, Lebanon, 03756 NH, USA
| | - Lucas A Salas
- Department of Epidemiology, Geisel School of Medicine, Dartmouth College, Lebanon, 03756 NH, USA,Department of Molecular & Systems Biology, Geisel School of Medicine, Dartmouth College, Lebanon, 03756 NH, USA,Author for correspondence: Tel.: 603 646 5496;
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27
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Chen JQ, Salas LA, Wiencke JK, Koestler DC, Molinaro AM, Andrew AS, Seigne JD, Karagas MR, Kelsey KT, Christensen BC. Immune profiles and DNA methylation alterations related with non-muscle-invasive bladder cancer outcomes. Clin Epigenetics 2022; 14:14. [PMID: 35063012 PMCID: PMC8783448 DOI: 10.1186/s13148-022-01234-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Accepted: 01/12/2022] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND Non-muscle-invasive bladder cancer (NMIBC) patients receive frequent monitoring because ≥ 70% will have recurrent disease. However, screening is invasive, expensive, and associated with significant morbidity making bladder cancer the most expensive cancer to treat per capita. There is an urgent need to expand the understanding of markers related to recurrence and survival outcomes of NMIBC. METHODS AND RESULTS We used the Illumina HumanMethylationEPIC array to measure peripheral blood DNA methylation profiles of NMIBC patients (N = 603) enrolled in a population-based cohort study in New Hampshire and applied cell type deconvolution to estimate immune cell-type proportions. Using Cox proportional hazard models, we identified that increasing CD4T and CD8T cell proportions were associated with a statistically significant decreased hazard of tumor recurrence or death (CD4T: HR = 0.98, 95% CI = 0.97-1.00; CD8T: HR = 0.97, 95% CI = 0.95-1.00), whereas increasing monocyte proportion and methylation-derived neutrophil-to-lymphocyte ratio (mdNLR) were associated with the increased hazard of tumor recurrence or death (monocyte: HR = 1.04, 95% CI = 1.00-1.07; mdNLR: HR = 1.12, 95% CI = 1.04-1.20). Then, using an epigenome-wide association study (EWAS) approach adjusting for age, sex, smoking status, BCG treatment status, and immune cell profiles, we identified 2528 CpGs associated with the hazard of tumor recurrence or death (P < 0.005). Among these CpGs, the 1572 were associated with an increased hazard and were significantly enriched in open sea regions; the 956 remaining CpGs were associated with a decreased hazard and were significantly enriched in enhancer regions and DNase hypersensitive sites. CONCLUSIONS Our results expand on the knowledge of immune profiles and methylation alteration associated with NMIBC outcomes and represent a first step toward the development of DNA methylation-based biomarkers of tumor recurrence.
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Affiliation(s)
- Ji-Qing Chen
- Department of Epidemiology, Geisel School of Medicine, Dartmouth College, Lebanon, NH, 03766, USA
| | - Lucas A Salas
- Department of Epidemiology, Geisel School of Medicine, Dartmouth College, Lebanon, NH, 03766, USA
| | - John K Wiencke
- Department of Neurological Surgery, University of California San Francisco, San Francisco, CA, 94143, USA
| | - Devin C Koestler
- Department of Biostatistics and Data Science, University of Kansas Medical Center, Kansas City, KS, 66160, USA
| | - Annette M Molinaro
- Department of Neurological Surgery, University of California San Francisco, San Francisco, CA, 94143, USA
| | - Angeline S Andrew
- Department of Neurology, Geisel School of Medicine, Dartmouth College, Lebanon, NH, 03766, USA
| | - John D Seigne
- Department of Surgery, Section of Urology, Geisel School of Medicine, Dartmouth College, Lebanon, NH, 03766, USA
| | - Margaret R Karagas
- Department of Epidemiology, Geisel School of Medicine, Dartmouth College, Lebanon, NH, 03766, USA
| | - Karl T Kelsey
- Departments of Epidemiology and Pathology and Laboratory Medicine, Brown University, Providence, RI, 02912, USA
| | - Brock C Christensen
- Department of Epidemiology, Geisel School of Medicine, Dartmouth College, Lebanon, NH, 03766, USA.
- Departments of Molecular and Systems Biology, and Community and Family Medicine, Geisel School of Medicine, Dartmouth College, Lebanon, NH, 03766, USA.
- Dartmouth Hitchcock Medical Center, 1 Medical Center Dr, 660 Williamson Translation Research Building, Lebanon, NH, 03756, USA.
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Yang B, Eliot M, McClean MD, Waterboer T, Pawlita M, Butler R, Nelson HH, Langevin SM, Christensen BC, Kelsey KT. DNA methylation-derived systemic inflammation indices and their association with oropharyngeal cancer risk and survival. Head Neck 2022; 44:904-913. [PMID: 35048488 DOI: 10.1002/hed.26981] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Revised: 12/14/2021] [Accepted: 01/10/2022] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Head and neck squamous cell carcinomas are associated with systemic inflammation (SI). We evaluated whether DNA methylation-derived SI (mdSI) indices are associated with oropharyngeal cancer risk and survival. METHODS Ninety-four oropharyngeal squamous cell carcinoma (OPSCC) cases and 57 controls with DNA methylation data were included. Logistic regression analysis and survival analysis were performed to test the association of mdSI indices with OPSCC risk and survival. RESULTS Higher methylation-derived neutrophil-to-lymphocyte ratio (mdNLR) was associated with increased risk of OPSCC (OR = 1.21, 95%CI: 1.11-1.40) while no association was found with methylation-derived lymphocyte-to-monocyte ratio (mdLMR). For 5-year overall survival, higher mdLMR was significantly associated with decreased risk of death (HR = 0.25, 95%CI: 0.10-0.64) while the converse was observed for mdNLR (HR = 2.48, 95%CI: 1.04-5.92). CONCLUSION We observed an association between mdSI indices and OPSCC risk and 5-year overall survival. It is possible to use mdLMR as an independent prognostic factor for OPSCC.
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Affiliation(s)
- Bo Yang
- Department of Epidemiology, Brown University, Providence, Rhode Island, USA
| | - Melissa Eliot
- Department of Epidemiology, Brown University, Providence, Rhode Island, USA
| | - Michael D McClean
- Department of Environmental Health, Boston University School of Public Health, Boston, Massachusetts, USA
| | - Tim Waterboer
- Division of Infections and Cancer Epidemiology, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Michael Pawlita
- Division of Infections and Cancer Epidemiology, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Rondi Butler
- Department of Epidemiology, Brown University, Providence, Rhode Island, USA
| | - Heather H Nelson
- Masonic Cancer Center, University of Minnesota, Minneapolis, Minnesota, USA.,Department of Epidemiology and Community Health, University of Minnesota, Minneapolis, Minnesota, USA
| | - Scott M Langevin
- Department of Environmental & Public Health Sciences, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Brock C Christensen
- Department of Epidemiology, Molecular and Systems Biology, Geisel School of Medicine at Dartmouth, Lebanon, New Hampshire, USA.,Department of Community and Family Medicine, Geisel School of Medicine at Dartmouth, Lebanon, New Hampshire, USA
| | - Karl T Kelsey
- Department of Epidemiology, Brown University, Providence, Rhode Island, USA.,Department of Pathology and Laboratory Medicine, Brown University, Providence, Rhode Island, USA
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Zhao N, Ruan M, Koestler DC, Lu J, Salas LA, Kelsey KT, Platz EA, Michaud DS. Methylation-derived inflammatory measures and lung cancer risk and survival. Clin Epigenetics 2021; 13:222. [PMID: 34915912 PMCID: PMC8680033 DOI: 10.1186/s13148-021-01214-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Accepted: 12/09/2021] [Indexed: 01/04/2023] Open
Abstract
BACKGROUND Examining immunity-related DNA methylation alterations in blood could help elucidate the role of the immune response in lung cancer etiology and aid in discovering factors that are key to lung cancer development and progression. In a nested, matched case-control study, we estimated methylation-derived NLR (mdNLR) and quantified DNA methylation levels at loci previously linked with circulating concentrations of C-reactive protein (CRP). We examined associations between these measures and lung cancer risk and survival. RESULTS Using conditional logistic regression and further adjusting for BMI, batch effects, and a smoking-based methylation score, we observed a 47% increased risk of non-small cell lung cancer (NSCLC) for one standard deviation (SD) increase in mdNLR (n = 150 pairs; OR: 1.47, 95% CI 1.08, 2.02). Using a similar model, the estimated CRP Scores were inversely associated with risk of NSCLC (e.g., Score 1 OR: 0.57, 95% CI: 0.40, 0.81). Using Cox proportional hazards models adjusting for age, sex, smoking status, methylation-predicted pack-years, BMI, batch effect, and stage, we observed a 28% increased risk of dying from lung cancer (n = 145 deaths in 205 cases; HR: 1.28, 95% CI: 1.09, 1.50) for one SD increase in mdNLR. CONCLUSIONS Our study demonstrates that immunity status measured with DNA methylation markers is associated with lung cancer a decade or more prior to cancer diagnosis. A better understanding of immunity-associated methylation-based biomarkers in lung cancer development could provide insight into critical pathways.
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Affiliation(s)
- Naisi Zhao
- Department of Public Health and Community Medicine, Tufts University School of Medicine, Tufts University, 136 Harrison Avenue, Boston, MA, 02111, USA
| | - Mengyuan Ruan
- Department of Public Health and Community Medicine, Tufts University School of Medicine, Tufts University, 136 Harrison Avenue, Boston, MA, 02111, USA
| | - Devin C Koestler
- Department of Biostatistics and Data Science, Medical Center, University of Kansas, Kansas City, KS, USA
- University of Kansas Cancer Center, Kansas City, KS, USA
| | - Jiayun Lu
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Lucas A Salas
- Department of Epidemiology, Geisel School of Medicine, Dartmouth College, Lebanon, NH, USA
| | - Karl T Kelsey
- Department of Epidemiology, Brown University, Providence, RI, USA
- Department of Pathology and Laboratory Medicine, Brown University, Providence, RI, USA
| | - Elizabeth A Platz
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
- The Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins, Baltimore, MD, USA
| | - Dominique S Michaud
- Department of Public Health and Community Medicine, Tufts University School of Medicine, Tufts University, 136 Harrison Avenue, Boston, MA, 02111, USA.
- Department of Epidemiology, Brown University, Providence, RI, USA.
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Michaud DS, Kelsey KT. DNA Methylation in Peripheral Blood: Providing Novel Biomarkers of Exposure and Immunity to Examine Cancer Risk. Cancer Epidemiol Biomarkers Prev 2021; 30:2176-2178. [PMID: 34862269 DOI: 10.1158/1055-9965.epi-21-0866] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2021] [Revised: 09/11/2021] [Accepted: 09/15/2021] [Indexed: 11/16/2022] Open
Abstract
DNA methylation is an epigenetic phenomenon that can alter and control gene expression. Because methylation plays a key role in cell differentiation, methylation markers have been identified that are unique to a given cell type; these markers are stable and can be measured in tissue or whole blood. The article by Katzke and colleagues, published in this issue, uses methylation markers to estimate proportions of immune cell subtypes in peripheral blood samples that were collected prior to diagnosis, thus allowing them to directly examine associations with pancreatic cancer risk. Given that immune-cell counts cannot be measured from archived blood, and that retrospective case-control studies rely on blood that is collected after cancer diagnosis, few studies have been able to examine the role of the systemic immune response in cancer risk. Measurement of DNA methylation in peripheral blood, primarily through development of whole-genome approaches, has also opened new doors to examining cancer etiology.See related article by Katzke et al., p. 2179.
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Affiliation(s)
- Dominique S Michaud
- Department of Public Health & Community Medicine, Tufts University School of Medicine, Tufts University, Boston, Massachusetts.
| | - Karl T Kelsey
- Department of Epidemiology, Brown University, Providence, Rhode Island.,Department of Pathology and Laboratory Medicine, Brown University, Providence, Rhode Island
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Molinaro AM, Wiencke JK, Warrier G, Koestler DC, Chunduru P, Lee JY, Hansen HM, Lee S, Anguiano J, Rice T, Bracci PM, McCoy L, Salas LA, Christensen BC, Wrensch M, Kelsey KT, Taylor JW, Clarke JL. Interactions of Age and Blood Immune Factors and Non-Invasive Prediction of Glioma Survival. J Natl Cancer Inst 2021; 114:446-457. [PMID: 34597382 DOI: 10.1093/jnci/djab195] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Revised: 06/30/2021] [Accepted: 09/23/2021] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Tumor-based classification of human glioma portends patient prognosis; however, considerable unexplained survival variability remains. Host factors (eg, age) also strongly influence survival times, partly reflecting a compromised immune system. How blood epigenetic measures of immune characteristics and age augment molecular classifications in glioma survival has not been investigated. We assess the prognostic impact of immune-cell fractions and epigenetic age in archived blood across glioma molecular subtypes for the first time. METHODS We evaluated immune-cell fractions and epigenetic age in archived blood from the University of California San Francisco Adult Glioma Study, including a training set of 197 IDH-wildtype, 1p19q intact, TERT wildtype (IDH/1p19q/TERT-WT) glioma patients, an evaluation set of 350 patients with other subtypes of glioma, and 454 subjects without glioma. RESULTS IDH/1p19q/TERT-WT patients had lower lymphocyte fractions (CD4+T, CD8+T, natural killer, and B cells) and higher neutrophil fractions than subjects without glioma. Recursive partitioning analysis delineated four statistically significantly different survival groups for IDH/1p19q/TERT-WT patients based on an interaction between chronological age and two blood immune factors, CD4+T cells, and neutrophils with median overall survival ranging from 0.76 years [95% confidence intervaI = 0.55 to 0.99] for the worst survival group (n = 28) to 9.72 years [95% confidence intervaI = 6.18 to NA] for the best (n = 33). The Recursive partitioning analysis also statistically significantly delineated four risk groups in patients with other glioma subtypes. CONCLUSION The delineation of different survival groups in the training and evaluation sets based on an interaction between chronological age and blood immune characteristics suggests that common host immune factors among different glioma types may impact survival. The ability of DNA methylation-based markers of immune status to capture diverse, clinically relevant information may facilitate non-invasive personalized patient evaluation in the neuro-oncology clinic.
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Affiliation(s)
- Annette M Molinaro
- Department of Neurological Surgery, UCSF, San Francisco, CA, USA.,Department of Epidemiology and Biostatistics, UCSF, San Francisco, CA, USA
| | - John K Wiencke
- Department of Neurological Surgery, UCSF, San Francisco, CA, USA
| | - Gayathri Warrier
- Department of Neurological Surgery, UCSF, San Francisco, CA, USA
| | - Devin C Koestler
- Department of Biostatistics & Data Science, University of Kansas Medical Center, Kansas City, KS, USA
| | | | - Ji Yoon Lee
- Department of Neurological Surgery, UCSF, San Francisco, CA, USA
| | - Helen M Hansen
- Department of Neurological Surgery, UCSF, San Francisco, CA, USA
| | - Sean Lee
- Department of Neurological Surgery, UCSF, San Francisco, CA, USA
| | - Joaquin Anguiano
- Department of Neurological Surgery, UCSF, San Francisco, CA, USA
| | - Terri Rice
- Department of Neurological Surgery, UCSF, San Francisco, CA, USA
| | - Paige M Bracci
- Department of Epidemiology and Biostatistics, UCSF, San Francisco, CA, USA
| | - Lucie McCoy
- Department of Neurological Surgery, UCSF, San Francisco, CA, USA
| | - Lucas A Salas
- Department of Epidemiology, Geisel School of Medicine, Dartmouth College, Lebanon, NH, USA
| | - Brock C Christensen
- Department of Epidemiology, Geisel School of Medicine, Dartmouth College, Lebanon, NH, USA.,Departments of Molecular and Systems Biology, and Community and Family Medicine, Geisel School of Medicine, Dartmouth College, Lebanon, NH, USA
| | - Margaret Wrensch
- Department of Neurological Surgery, UCSF, San Francisco, CA, USA
| | - Karl T Kelsey
- Departments of Epidemiology and Pathology and Laboratory Medicine, Brown University, Providence, RI, USA
| | - Jennie W Taylor
- Department of Neurological Surgery, UCSF, San Francisco, CA, USA.,Department of Neurology, UCSF, San Francisco, CA, USA
| | - Jennifer L Clarke
- Department of Neurological Surgery, UCSF, San Francisco, CA, USA.,Department of Neurology, UCSF, San Francisco, CA, USA
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Sturgeon SR, Sela DA, Browne EP, Einson J, Rani A, Halabi M, Kania T, Keezer A, Balasubramanian R, Ziegler RG, Schairer C, Kelsey KT, Arcaro KF. Prediagnostic White Blood Cell DNA Methylation and Risk of Breast Cancer in the Prostate Lung, Colorectal, and Ovarian Cancer Screening Trial (PLCO) Cohort. Cancer Epidemiol Biomarkers Prev 2021; 30:1575-1581. [PMID: 34108140 PMCID: PMC10825794 DOI: 10.1158/1055-9965.epi-20-1717] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Revised: 03/11/2021] [Accepted: 05/21/2021] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND White blood cell (WBC) DNA may contain methylation patterns that are associated with subsequent breast cancer risk. Using a high-throughput array and samples collected, on average, 1.3 years prior to diagnosis, a case-cohort analysis nested in the prospective Sister Study identified 250 individual CpG sites that were differentially methylated between breast cancer cases and noncases. We examined five of the top 40 CpG sites in a case-control study nested in the Prostate, Lung, Colorectal, and Ovarian Cancer Screening Trial (PLCO) Cohort. METHODS We investigated the associations between prediagnostic WBC DNA methylation in 297 breast cancer cases and 297 frequency-matched controls. Two WBC DNA specimens from each participant were used: a proximate sample collected 1 to 2.9 years and a distant sample collected 4.2-7.3 years prior to diagnosis in cases or the comparable timepoints in controls. WBC DNA methylation level was measured using targeted bisulfite amplification sequencing. We used logistic regression to obtain ORs and 95% confidence intervals (CI). RESULTS A one-unit increase in percent methylation in ERCC1 in proximate WBC DNA was associated with increased breast cancer risk (adjusted OR = 1.29; 95% CI, 1.06-1.57). However, a one-unit increase in percent methylation in ERCC1 in distant WBC DNA was inversely associated with breast cancer risk (adjusted OR = 0.83; 95% CI, 0.69-0.98). None of the other ORs met the threshold for statistical significance. CONCLUSIONS There was no convincing pattern between percent methylation in the five CpG sites and breast cancer risk. IMPACT The link between prediagnostic WBC DNA methylation marks and breast cancer, if any, is poorly understood.
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Affiliation(s)
- Susan R Sturgeon
- Department of Biostatistics and Epidemiology, University of Massachusetts, Amherst, Massachusetts.
| | - David A Sela
- Department of Food Science, University of Massachusetts, Amherst, Massachusetts
| | - Eva P Browne
- Department of Veterinary and Animal Sciences, University of Massachusetts, Amherst, Massachusetts
| | - Jonah Einson
- Department of Food Science, University of Massachusetts, Amherst, Massachusetts
| | - Asha Rani
- Department of Food Science, University of Massachusetts, Amherst, Massachusetts
| | - Mohamed Halabi
- Department of Veterinary and Animal Sciences, University of Massachusetts, Amherst, Massachusetts
| | - Thomas Kania
- Department of Veterinary and Animal Sciences, University of Massachusetts, Amherst, Massachusetts
| | - Andrew Keezer
- Department of Veterinary and Animal Sciences, University of Massachusetts, Amherst, Massachusetts
| | - Raji Balasubramanian
- Department of Biostatistics and Epidemiology, University of Massachusetts, Amherst, Massachusetts
| | - Regina G Ziegler
- Epidemiology and Biostatistics Program, Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, Maryland
| | - Catherine Schairer
- Epidemiology and Biostatistics Program, Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, Maryland
| | - Karl T Kelsey
- Department of Epidemiology, Department of Pathology, and Department of Laboratory Medicine, Brown University, Providence, Rhode Island
| | - Kathleen F Arcaro
- Department of Veterinary and Animal Sciences, University of Massachusetts, Amherst, Massachusetts
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Deyssenroth MA, Rosa MJ, Eliot MN, Kelsey KT, Kloog I, Schwartz JD, Wellenius GA, Peng S, Hao K, Marsit CJ, Chen J. Placental gene networks at the interface between maternal PM 2.5 exposure early in gestation and reduced infant birthweight. Environ Res 2021; 199:111342. [PMID: 34015297 PMCID: PMC8195860 DOI: 10.1016/j.envres.2021.111342] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Revised: 05/10/2021] [Accepted: 05/12/2021] [Indexed: 05/31/2023]
Abstract
BACKGROUND A growing body of evidence links maternal exposure to particulate matter <2.5 μM in diameter (PM2.5) and deviations in fetal growth. Several studies suggest that the placenta plays a critical role in conveying the effects of maternal PM2.5 exposure to the developing fetus. These include observed associations between air pollutants and candidate placental features, such as mitochondrial DNA content, DNA methylation and telomere length. However, gaps remain in delineating the pathways linking the placenta to air pollution-related health effects, including a comprehensive profiling of placental processes impacted by maternal PM2.5 exposure. In this study, we examined alterations in a placental transcriptome-wide network in relation to maternal PM2.5 exposure prior to and during pregnancy and infant birthweight. METHODS We evaluated PM2.5 exposure and placental RNA-sequencing data among study participants enrolled in the Rhode Island Child Health Study (RICHS). Daily residential PM2.5 levels were estimated using a hybrid model incorporating land-use regression and satellite remote sensing data. Distributed lag models were implemented to assess the impact on infant birthweight due to PM2.5 weekly averages ranging from 12 weeks prior to gestation until birth. Correlations were assessed between PM2.5 levels averaged across the identified window of susceptibility and a placental transcriptome-wide gene coexpression network previously generated using the WGCNA R package. RESULTS We identified a sensitive window spanning 12 weeks prior to and 13 weeks into gestation during which maternal PM2.5 exposure is significantly associated with reduced infant birthweight. Two placental coexpression modules enriched for genes involved in amino acid transport and cellular respiration were correlated with infant birthweight as well as maternal PM2.5 exposure levels averaged across the identified growth restriction window. CONCLUSION Our findings suggest that maternal PM2.5 exposure may alter placental programming of fetal growth, with potential implications for downstream health effects, including susceptibility to cardiometabolic health outcomes and viral infections.
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Affiliation(s)
- Maya A Deyssenroth
- Department of Environmental Health Sciences, Columbia University Mailman School of Public Health, New York, NY, 10032, USA.
| | - Maria José Rosa
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
| | - Melissa N Eliot
- Department of Epidemiology, Brown University School of Public Health, Providence, RI, 02903, USA
| | - Karl T Kelsey
- Department of Epidemiology, Brown University School of Public Health, Providence, RI, 02903, USA; Department of Pathology and Laboratory Medicine, Brown University, Providence, RI, 02903, USA
| | - Itai Kloog
- Department of Geography and Environmental Development, Faculty of Humanities and Social Sciences, Ben Gurion University, Beersheba, 8410501, Israel
| | - Joel D Schwartz
- Department of Environmental Health, Harvard TH Chan School of Public Health, Boston, MA, 02215, USA; Department of Epidemiology, Harvard TH Chan School of Public Health, Boston, MA, 02215, USA
| | - Gregory A Wellenius
- Boston University School of Public Health, Boston University, Boston, MA, 02215, USA
| | - Shouneng Peng
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
| | - Ke Hao
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
| | - Carmen J Marsit
- Environmental Health, Rollins School of Public Health of Emory University, Atlanta, GA, 30322, USA
| | - Jia Chen
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
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Buck CO, Li N, Eaton CB, Kelsey KT, Cecil KM, Kalkwarf HJ, Yolton K, Lanphear BP, Chen A, Braun JM. Neonatal and Adolescent Adipocytokines as Predictors of Adiposity and Cardiometabolic Risk in Adolescence. Obesity (Silver Spring) 2021; 29:1036-1045. [PMID: 34029449 PMCID: PMC8567116 DOI: 10.1002/oby.23160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Revised: 01/30/2021] [Accepted: 02/25/2021] [Indexed: 11/05/2022]
Abstract
OBJECTIVE This study aimed to examine associations of changes in leptin and adiponectin concentrations from birth to age 12 years with adolescent adiposity and cardiometabolic risk in the Health Outcomes and Measures of Environment (HOME) Study, a prospective birth cohort (Cincinnati, Ohio; N = 166). METHODS Adiposity and cardiometabolic risk factors were assessed at age 12 years using anthropometry, dual-energy x-ray absorptiometry, and fasting serum biomarkers. Cardiometabolic risk scores were calculated by summing age- and sex- standardized z scores for individual cardiometabolic risk factors. RESULTS Most serum adipocytokine concentrations at birth were not associated with adiposity or cardiometabolic risk outcomes. Leptin and adiponectin concentrations at age 12 years were associated with all outcomes in the expected direction. Adolescents with increasing (β: 4.2; 95% CI: 3.2 to 5.2) and stable (β: 2.2; 95% CI: 1.2 to 3.2) leptin concentrations from birth to age 12 years had higher cardiometabolic risk scores than adolescents with decreasing concentrations (reference group). Adolescents with increasing (e.g., fat mass index = β: -1.04; 95% CI: -1.27 to -0.80) and stable (β: 0.66; 95% CI: -0.92 to -0.40) adiponectin/leptin ratios had more favorable adiposity outcomes than adolescents with decreasing ratios. CONCLUSIONS In this cohort, changes in leptin concentrations and adiponectin/leptin ratios over childhood were associated with adiposity and cardiometabolic risk scores, indicating that adipocytokine concentrations are potential biomarkers for predicting excess adiposity and cardiometabolic risk in adolescence.
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Affiliation(s)
| | - Nan Li
- Department of Epidemiology, School of Public Health, Brown University, Providence, RI
| | - Charles B. Eaton
- Department of Epidemiology, School of Public Health, Brown University, Providence, RI
- Department of Family Medicine, Alpert Medical School of Brown University, Providence, RI
- Kent Memorial Hospital, Warwick, RI
| | - Karl T. Kelsey
- Department of Epidemiology, School of Public Health, Brown University, Providence, RI
- Department of Pathology and Laboratory Medicine, Brown University, Providence
| | - Kim M. Cecil
- Imaging Research Center, Cincinnati Children's Hospital Medical Center, Cincinnati, OH
- Departments of Pediatrics and Radiology, University of Cincinnati College of Medicine, Cincinnati
| | - Heidi J. Kalkwarf
- Division of Gastroenterology, Hepatology and Nutrition, Cincinnati Children’s Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati
| | - Kimberly Yolton
- Department of Pediatrics, Division of General and Community Pediatrics, Cincinnati Children’s Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati
| | - Bruce P. Lanphear
- Faculty of Health Sciences, Simon Fraser University, Burnaby, British Columbia, Canada
| | - Aimin Chen
- Department of Biostatistics, Epidemiology and Informatics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, United States
| | - Joseph M. Braun
- Department of Epidemiology, School of Public Health, Brown University, Providence, RI
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35
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Zhao N, Ruan M, Koestler DC, Lu J, Marsit CJ, Kelsey KT, Platz EA, Michaud DS. Epigenome-wide scan identifies differentially methylated regions for lung cancer using pre-diagnostic peripheral blood. Epigenetics 2021; 17:460-472. [PMID: 34008478 DOI: 10.1080/15592294.2021.1923615] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
Abstract
BACKGROUND DNA methylation markers have been associated with lung cancer risk and may identify aetiologically relevant genomic regions, or alternatively, be markers of disease risk factors or biological processes associated with disease development. METHODS In a nested case-control study, we measured blood leukocyte DNA methylation levels in pre-diagnostic samples collected from 430 participants (208 cases; 222 controls) in the 1989 CLUE II cohort. We compared DNA methylation levels with case/control status to identify novel genomic regions, both single CpG sites and differentially methylated regions (DMRs), while controlling for known DNA methylation changes associated with smoking using a previously described pack-years-based smoking methylation score. Stratification analyses were conducted over time from blood draw to diagnosis, histology, and smoking status. RESULTS We identified 16 single CpG sites and 40 DMRs significantly associated with lung cancer risk (q < 0.05). The identified genomic regions were associated with genes including H19, HOXA3/HOXA4, RUNX3, BRICD5, PLXNB2, and RP13. For the single CpG sites, the strongest association was noted for cg09736286 in the DIABLO gene (OR [for 1 SD] = 2.99, 95% CI: 1.95-4.59, P-value = 4.81 × 10-7). We found that CpG sites in the HOXA3/HOXA4 region were hypermethylated in cases compared to controls. CONCLUSION The single CpG sites and DMRs that we identified represented significant measurable differences in lung cancer risk, providing potential biomarkers for lung cancer risk stratification. Future studies will need to examine whether these regions are causally related to lung cancer.
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Affiliation(s)
- Naisi Zhao
- Department of Public Health & Community Medicine, Tufts University School of Medicine, Tufts University, Boston, MA, USA
| | - Mengyuan Ruan
- Department of Public Health & Community Medicine, Tufts University School of Medicine, Tufts University, Boston, MA, USA
| | - Devin C Koestler
- Department of Biostatistics & Data Science, University of Kansas Medical Center, Kansas City, KS, USA.,University of Kansas Cancer Center, University of Kansas Medical Center, Kansas City, KS, USA
| | - Jiayun Lu
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Carmen J Marsit
- Department of Environmental Health and Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, GA, USA
| | - Karl T Kelsey
- Department of Epidemiology, Brown University, Providence, RI, USA.,Department of Pathology and Laboratory Medicine, Brown University, Providence, RI, USA
| | - Elizabeth A Platz
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA.,The Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins, Baltimore, MD, USA
| | - Dominique S Michaud
- Department of Public Health & Community Medicine, Tufts University School of Medicine, Tufts University, Boston, MA, USA.,Department of Epidemiology, Brown University, Providence, RI, USA
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36
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Rytel MR, Butler R, Eliot M, Braun JM, Houseman EA, Kelsey KT. DNA methylation in the adipose tissue and whole blood of Agent Orange-exposed Operation Ranch Hand veterans: a pilot study. Environ Health 2021; 20:43. [PMID: 33849548 PMCID: PMC8045317 DOI: 10.1186/s12940-021-00717-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Accepted: 03/08/2021] [Indexed: 05/26/2023]
Abstract
BACKGROUND Between 1962 and 1971, the US Air Force sprayed Agent Orange across Vietnam, exposing many soldiers to this dioxin-containing herbicide. Several negative health outcomes have been linked to Agent Orange exposure, but data is lacking on the effects this chemical has on the genome. Therefore, we sought to characterize the impact of Agent Orange exposure on DNA methylation in the whole blood and adipose tissue of veterans enrolled in the Air Force Health Study (AFHS). METHODS We received adipose tissue (n = 37) and whole blood (n = 42) from veterans in the AFHS. Study participants were grouped as having low, moderate, or high TCDD body burden based on their previously measured serum levels of dioxin. DNA methylation was assessed using the Illumina 450 K platform. RESULTS Epigenome-wide analysis indicated that there were no FDR-significantly methylated CpGs in either tissue with TCDD burden. However, 3 CpGs in the adipose tissue (contained within SLC9A3, LYNX1, and TNRC18) were marginally significantly (q < 0.1) hypomethylated, and 1 CpG in whole blood (contained within PTPRN2) was marginally significantly (q < 0.1) hypermethylated with high TCDD burden. Analysis for differentially methylated DNA regions yielded SLC9A3, among other regions in adipose tissue, to be significantly differentially methylated with higher TCDD burden. Comparing whole blood data to a study of dioxin exposed adults from Alabama identified a CpG within the gene SMO that was hypomethylated with dioxin exposure in both studies. CONCLUSION We found limited evidence of dioxin associated DNA methylation in adipose tissue and whole blood in this pilot study of Vietnam War veterans. Nevertheless, loci in the genes of SLC9A3 in adipose tissue, and PTPRN2 and SMO in whole blood, should be included in future exposure analyses.
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Affiliation(s)
- Matthew R. Rytel
- Department of Epidemiology, Brown University School of Public Health, Providence, RI 02912 USA
| | - Rondi Butler
- Department of Epidemiology, Brown University School of Public Health, Providence, RI 02912 USA
- Department of Pathology and Laboratory Medicine, Brown University School of Public Health, Providence, RI 02912 USA
| | - Melissa Eliot
- Department of Epidemiology, Brown University School of Public Health, Providence, RI 02912 USA
| | - Joseph M. Braun
- Department of Epidemiology, Brown University School of Public Health, Providence, RI 02912 USA
| | - E. Andres Houseman
- Statistical Bioinformatics, GlaxoSmithKline, 1250 S Collegeville Rd, Collegeville, PA 19426 USA
| | - Karl T. Kelsey
- Department of Epidemiology, Brown University School of Public Health, Providence, RI 02912 USA
- Department of Pathology and Laboratory Medicine, Brown University School of Public Health, Providence, RI 02912 USA
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37
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Wiencke JK, Zhang Z, Koestler DC, Salas LA, Molinaro AM, Christensen BC, Kelsey KT. Identification of a foetal epigenetic compartment in adult human kidney. Epigenetics 2021; 17:335-355. [PMID: 33783321 DOI: 10.1080/15592294.2021.1900027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
Abstract
The mammalian kidney has extensive repair capacity; however, identifying adult renal stem cells has proven elusive. We applied an epigenetic marker of foetal cell origin (FCO) in diverse human tissues as a probe for developmental cell persistence, finding a 5.4-fold greater FCO proportion in kidney. Normal kidney FCO proportions averaged 49% with extensive interindividual variation. FCO proportions were significantly negatively correlated with immune-related gene expression and positively correlated with genes expressed in the renal medulla, including those involved in renal organogenesis (e.g., FGF2, PAX8, and HOXB7). FCO associated genes also mapped to medullary nephron segments in mouse and rat, suggesting evolutionary conservation of this cellular compartment. Renal cancer patients whose tumours contained non-zero FCO scores survived longer. The kidney appears unique in possessing substantial foetal epigenetic features. Further study of FCO-related gene methylation may elucidate regenerative regulatory programmes in tissues without apparent discrete stem cell compartments.
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Affiliation(s)
- John K Wiencke
- Department of Neurological Surgery, Institute for Human Genetics, University of California, San Francisco, CA, USA
| | - Ze Zhang
- Department of Epidemiology, Department of Pathology and Laboratory Medicine, Brown University School of Public Health, Providence, RI, USA
| | - Devin C Koestler
- Department of Biostatistics, University of Kansas Medical Center, Kansas City, KS, USA
| | - Lucas A Salas
- Department of Epidemiology, Department of Molecular and Systems Biology, Department of Community and Family Medicine, Geisel School of Medicine, Dartmouth College, Lebanon, NH, USA
| | - Annette M Molinaro
- Department of Neurological Surgery, Institute for Human Genetics, University of California, San Francisco, CA, USA
| | - Brock C Christensen
- Department of Epidemiology, Department of Molecular and Systems Biology, Department of Community and Family Medicine, Geisel School of Medicine, Dartmouth College, Lebanon, NH, USA
| | - Karl T Kelsey
- Department of Epidemiology, Department of Pathology and Laboratory Medicine, Brown University School of Public Health, Providence, RI, USA
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38
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Chung M, Zhao N, Meier R, Koestler DC, Wu G, del Castillo E, Paster BJ, Charpentier K, Izard J, Kelsey KT, Michaud DS. Comparisons of oral, intestinal, and pancreatic bacterial microbiomes in patients with pancreatic cancer and other gastrointestinal diseases. J Oral Microbiol 2021; 13:1887680. [PMID: 33628398 PMCID: PMC7889162 DOI: 10.1080/20002297.2021.1887680] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Revised: 01/14/2021] [Accepted: 02/04/2021] [Indexed: 12/14/2022] Open
Abstract
Background: Oral microbiota is believed to play important roles in systemic diseases, including cancer. Methods: We collected oral samples (tongue, buccal, supragingival, and saliva) and pancreatic tissue or intestinal samples from 52 subjects, and characterized 16S rRNA genes using high-throughput DNA sequencing. Results: Bray-Curtis plot showed clear separations between bacterial communities in the oral cavity and those in intestinal and pancreatic tissue samples. PERMANOVA tests indicated that bacterial communities from buccal samples were similar to supragingival and saliva samples, and pancreatic duct samples were similar to pancreatic tumor samples, but all other samples were significantly different from each other. A total of 73 unique Amplicon Sequence Variants (ASVs) were shared between oral and pancreatic or intestinal samples. Only four ASVs showed significant concordance, and two specific bacterial species (Gemella morbillorum and Fusobacterium nucleatum subsp. vincentii) showed consistent presence or absence patterns between oral and intestinal or pancreatic samples, after adjusting for within-subject correlation and disease status. Lastly, microbial co-abundance analyses showed distinct strain-level cluster patterns among microbiome members in buccal, saliva, duodenum, jejunum, and pancreatic tumor samples. Conclusions: Our findings indicate that oral, intestinal, and pancreatic bacterial microbiomes overlap but exhibit distinct co-abundance patterns in patients with pancreatic cancer and other gastrointestinal diseases.
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Affiliation(s)
- Mei Chung
- Department of Public Health and Community Medicine, School of Medicine, Tufts University, Boston, MA, USA
| | - Naisi Zhao
- Department of Public Health and Community Medicine, School of Medicine, Tufts University, Boston, MA, USA
| | - Richard Meier
- Department of Biostatistics, University of Kansas Medical Center, Kansas City, KS, USA
| | - Devin C. Koestler
- Department of Biostatistics, University of Kansas Medical Center, Kansas City, KS, USA
- University of Kansas Cancer Center, The University of Kansas Medical Center, Kansas City, KS, USA
| | - Guojun Wu
- Department of Biochemistry and Microbiology, Center for Nutrition, Microbiome and Health, New Jersey Institute for Food, Nutrition and Health, Rutgers University, New Brunswick, NJ, USA
| | | | - Bruce J. Paster
- Department of Microbiology, The Forsyth Institute, Cambridge, MA, USA
- Department of Oral Medicine, Infection & Immunity, Harvard School of Dental Medicine, Boston, MA, USA
| | | | - Jacques Izard
- Department of Food Science and Technology, University of Nebraska, Lincoln, NE, USA
- Fred and Pamela Buffet Cancer Center, University of Nebraska Medical Center, Omaha, NE, USA
| | - Karl T. Kelsey
- Center for Environmental Health and Technology, Brown University, Providence, RI, USA
| | - Dominique S. Michaud
- Department of Public Health and Community Medicine, School of Medicine, Tufts University, Boston, MA, USA
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39
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Li N, Liu Y, Papandonatos GD, Calafat AM, Eaton CB, Kelsey KT, Cecil KM, Kalkwarf HJ, Yolton K, Lanphear BP, Chen A, Braun JM. Gestational and childhood exposure to per- and polyfluoroalkyl substances and cardiometabolic risk at age 12 years. Environ Int 2021; 147:106344. [PMID: 33418195 PMCID: PMC7856172 DOI: 10.1016/j.envint.2020.106344] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Revised: 11/04/2020] [Accepted: 12/14/2020] [Indexed: 05/11/2023]
Abstract
BACKGROUND Per- and polyfluoroalkyl substances (PFAS) may adversely influence cardiometabolic risk. However, few studies have examined if the timing of early life PFAS exposure modifies their relation to cardiometabolic risk. We examined the influence of gestational and childhood PFAS exposure on adolescents' cardiometabolic risk. METHODS We quantified concentrations of four PFAS (perfluorooctanoate [PFOA], perfluorooctane sulfonate [PFOS], perfluorononanoate [PFNA], and perfluorohexane sulfonate [PFHxS]) in sera collected during pregnancy, at birth, and at ages 3, 8, and 12 years from 221 mother-child pairs in the HOME Study (enrolled 2003-06, Cincinnati, Ohio). We measured cardiometabolic risk factors using physical examinations, fasting serum biomarkers, and dual-energy X-ray absorptiometry scans at age 12 years. Cardiometabolic risk summary scores were calculated by summing age- and sex-standardized z-scores for individual cardiometabolic risk factors. We used multiple informant models to estimate covariate-adjusted associations of serum PFAS concentrations (log2-transformed) at each visit with cardiometabolic risk scores and their individual components, and tested for differences in associations across visits. RESULTS The associations of serum PFOA concentrations with cardiometabolic risk scores differed across visits (P for heterogeneity = 0.03). Gestational and cord serum PFOA concentrations were positively associated with cardiometabolic risk scores (βs and 95% confidence intervals [95% CIs]: gestational 0.8 [0.0, 1.6]; cord 0.9 [-0.1, 1.9] per interquartile range increase). These positive associations were primarily driven by homeostatic model assessment for insulin resistance index (β = 0.3 [0.1, 0.5]) and adiponectin to leptin ratio (β = -0.5 [-1.0, 0.0]). Other individual cardiometabolic risk factors associated with gestational PFOA included insulin and waist circumference. Gestational and cord PFHxS were also associated with higher cardiometabolic risk scores (βs: gestational 0.9 [0.2, 1.6]; cord 0.9 [0.1, 1.7]). CONCLUSION In this cohort of children with higher gestational PFOA exposure, fetal exposure to PFOA and PFHxS was associated with unfavorable cardiometabolic risk in adolescence.
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Affiliation(s)
- Nan Li
- Department of Epidemiology, School of Public Health, Brown University, Providence, Rhode Island, United States.
| | - Yun Liu
- Department of Epidemiology, School of Public Health, Brown University, Providence, Rhode Island, United States.
| | - George D Papandonatos
- Department of Biostatistics, School of Public Health, Brown University, Providence, Rhode Island, United States.
| | - Antonia M Calafat
- National Center for Environmental Health, Centers for Disease Control and Prevention, Atlanta, GA, United States.
| | - Charles B Eaton
- Department of Epidemiology, School of Public Health, Brown University, Providence, Rhode Island, United States; Department of Family Medicine, Warren Alpert Medical School of Brown University, Providence, Rhode Island, United States; Kent Memorial Hospital, Warwick, Rhode Island, United States.
| | - Karl T Kelsey
- Department of Epidemiology, School of Public Health, Brown University, Providence, Rhode Island, United States; Department of Pathology and Laboratory Medicine, Brown University, Providence, Rhode Island, United States.
| | - Kim M Cecil
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, United States; Department of Radiology, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, OH, United States.
| | - Heidi J Kalkwarf
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, United States; Department of Pediatrics, Division of Gastroenterology, Hepatology and Nutrition, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, United States.
| | - Kimberly Yolton
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, United States; Department of Pediatrics, Division of General and Community Pediatrics, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, OH, United States.
| | - Bruce P Lanphear
- Faculty of Health Sciences, Simon Fraser University, Burnaby, British Columbia, Canada.
| | - Aimin Chen
- Department of Biostatistics, Epidemiology and Informatics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States.
| | - Joseph M Braun
- Department of Epidemiology, School of Public Health, Brown University, Providence, Rhode Island, United States.
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40
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Chung M, Ruan M, Zhao N, Koestler DC, De Vivo I, Kelsey KT, Michaud DS. DNA methylation ageing clocks and pancreatic cancer risk: pooled analysis of three prospective nested case-control studies. Epigenetics 2021; 16:1306-1316. [PMID: 33315530 DOI: 10.1080/15592294.2020.1861401] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
Abstract
DNA methylation (DNAm) age may reflect age-related variations in biological changes and abnormalities related to ageing. DNAm age acceleration measures have been associated with a number of cancers, but to our knowledge, have not been examined in relation to pancreatic cancer risk or survival. DNAm levels in leukocytes of prediagnostic blood samples of 393 pancreatic cancer cases and 431 matched controls, pooled from three large prospective cohort studies, were used to estimate DNAm age, epigenetic age acceleration (AA), and intrinsic epigenetic age acceleration (IEAA) metrics. Logistic regression and Cox proportional hazard regression models were used to examine the relationship between the various AA and IEAA metrics and pancreatic cancer risk and survival, respectively. The results showed that pancreatic cancer risk was significantly increased across all IEAA metrics, ranging from 83% to 95% increased risk when comparing the third and highest quartiles to the lowest quartile of IEAA. Consistent with these findings, the results from multivariate spline regression analyses showed non-linear relationships between all three IEAA metrics and pancreatic cancer risk with apparent threshold effect including two turning points at minimal and at maximal risks, respectively. There is no evidence of a significant association between pancreatic cancer survival and any of the epigenetic AA or IEAA metrics. Our results indicate DNAm age acceleration, measured in blood prior to cancer diagnosis, is associated with an increased risk of pancreatic cancer in a complex nonlinear, dose-response manner. Epigenetic IEAA metrics may be a useful addition to current methods for pancreatic cancer risk prediction.
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Affiliation(s)
- Mei Chung
- Department of Public Health & Community Medicine, Tufts University School of Medicine, Tufts University, Boston, MA, USA
| | - Mengyuan Ruan
- Department of Public Health & Community Medicine, Tufts University School of Medicine, Tufts University, Boston, MA, USA
| | - Naisi Zhao
- Department of Public Health & Community Medicine, Tufts University School of Medicine, Tufts University, Boston, MA, USA
| | - Devin C Koestler
- Department of Biostatistics & Data Science, University of Kansas Medical Center, Kansas City, KS, USA.,University of Kansas Cancer Center, University of Kansas Medical Center, Kansas City, KS, USA
| | - Immaculata De Vivo
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA
| | - Karl T Kelsey
- Department of Epidemiology, Brown University, Providence, RI, USA.,Department of Pathology and Laboratory Medicine, Brown University, Providence, RI, USA
| | - Dominique S Michaud
- Department of Public Health & Community Medicine, Tufts University School of Medicine, Tufts University, Boston, MA, USA
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41
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Liu Y, Li N, Papandonatos GD, Calafat AM, Eaton CB, Kelsey KT, Chen A, Lanphear BP, Cecil KM, Kalkwarf HJ, Yolton K, Braun JM. Exposure to Per- and Polyfluoroalkyl Substances and Adiposity at Age 12 Years: Evaluating Periods of Susceptibility. Environ Sci Technol 2020; 54:16039-16049. [PMID: 33269902 PMCID: PMC7917013 DOI: 10.1021/acs.est.0c06088] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
Per- and polyfluoroalkyl substances (PFAS) exposure may increase adiposity and obesity risk in children. However, no studies have extended these findings into adolescence or identified periods of heightened susceptibility. We estimated associations of repeated pre- and postnatal serum PFAS concentrations with adolescent adiposity and risk of overweight/obesity. We studied 212 mother-offspring pairs from the HOME Study. We quantified serum concentrations of four PFAS in mothers at ∼16 week gestation and their children at birth and ages 3, 8, and 12 years. We assessed adiposity at 12 years using anthropometry and dual-energy X-ray absorptiometry. Using multiple informant models, we estimated covariate-adjusted associations of an interquartile range (IQR) increase in log2-transformed PFAS for each time period with adiposity measures and tested differences in these associations. Serum perfluorooctanoate (PFOA) and perfluorohexane sulfonate (PFHxS) concentrations during pregnancy were associated with modest increases in central adiposity and risk of overweight/obesity, but there was no consistent pattern for postnatal concentrations. We observed nonlinear associations between PFOA in pregnancy and some measures of adiposity. Overall, we observed a pattern of modest positive associations of gestational PFOA and PFHxS concentrations with central adiposity and the risk of obesity in adolescents, while no pattern was observed for postnatal PFAS concentrations.
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Affiliation(s)
- Yun Liu
- Department of Epidemiology, Brown University School of Public Health, Box G-S121-2, Providence, Rhode Island 02903, United States
| | - Nan Li
- Department of Epidemiology, Brown University School of Public Health, Box G-S121-2, Providence, Rhode Island 02903, United States
| | - George D Papandonatos
- Department of Biostatistics, Brown University School of Public Health, Providence, Rhode Island 02903, United States
| | - Antonia M Calafat
- Centers for Disease Control and Prevention, Atlanta, Georgia 30329-4018, United States
| | - Charles B Eaton
- Department of Epidemiology, Brown University School of Public Health, Box G-S121-2, Providence, Rhode Island 02903, United States
- Center for Primary Care and Prevention, Memorial Hospital of Rhode Island, Pawtucket, Rhode Island 02860-4499, United States
- Department of Family Medicine, Brown University School of Medicine, Providence, Rhode Island 02912, United States
| | - Karl T Kelsey
- Department of Epidemiology, Brown University School of Public Health, Box G-S121-2, Providence, Rhode Island 02903, United States
| | - Aimin Chen
- Department of Biostatics, Epidemiology & Informatics, University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania 19104, United States
| | - Bruce P Lanphear
- Faculty of Health Sciences, Simon Fraser University, Burnaby, British Columbia V5A 1S6, Canada
| | - Kim M Cecil
- Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, Ohio 45229-3026, United States
| | - Heidi J Kalkwarf
- Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, Ohio 45229-3026, United States
| | - Kimberly Yolton
- Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, Ohio 45229-3026, United States
| | - Joseph M Braun
- Department of Epidemiology, Brown University School of Public Health, Box G-S121-2, Providence, Rhode Island 02903, United States
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Jordahl KM, Phipps AI, Randolph TW, Tinker LF, Nassir R, Hou L, Anderson GL, Kelsey KT, White E, Bhatti P. Mediation by differential DNA methylation of known associations between single nucleotide polymorphisms and bladder cancer risk. BMC Med Genet 2020; 21:228. [PMID: 33213418 PMCID: PMC7678190 DOI: 10.1186/s12881-020-01172-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Accepted: 11/12/2020] [Indexed: 12/16/2022]
Abstract
Background Though bladder cancer has been the subject of many well-powered genome-wide association studies, the mechanisms involving bladder-cancer-associated single nucleotide polymorphisms (SNPs) remain largely unknown. This study focuses on rs798766, rs401681, rs2294008, and rs8102137, which have been associated with bladder cancer and are also cis-acting methylation quantitative loci (mQTL). Methods Among 412 bladder cancer cases and 424 controls from the Women’s Health Initiative (WHI), we assessed whether the effects of these SNPs on bladder cancer are mediated through proximal DNA methylation changes in pre-diagnostic blood at mQTL-associated CpG sites, which we refer to as natural indirect effects (NIEs). We used a multiple-mediator mediation model for each of the four mQTL adjusted for matching variables and potential confounders, including race/ethnicity, smoking status, and pack-years of smoking. Results While not statistically significant, our results suggest that substantial proportions of the modest effects of rs401681 (ORNIE = 1.05, 95% confidence interval (CI) = 0.89 to 1.25; NIE percent = 98.5%) and rs2294008 (ORNIE = 1.10, 95% CI = 0.90 to 1.33; NIE percent = 77.6%) on bladder cancer risk are mediated through differential DNA methylation at nearby mQTL-associated CpG sites. The suggestive results indicate that rs2294008 may affect bladder cancer risk through a set of genes in the lymphocyte antigen 6 family, which involves genes that bind to and modulate nicotinic acetylcholine receptors. There was no suggestive evidence supporting mediation for rs8102137 and rs798766. Conclusions Though larger studies are necessary, the methylation changes associated with rs401681 and rs2294008 at mQTL-associated CpG sites may be relevant for bladder carcinogenesis, and this study demonstrates how multi-omic data can be integrated to help understand the downstream effects of genetics variants.
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Affiliation(s)
- Kristina M Jordahl
- Department of Epidemiology, School of Public Health, University of Washington, Box 357236, Seattle, WA, 98195, USA. .,Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, WA, USA.
| | - Amanda I Phipps
- Department of Epidemiology, School of Public Health, University of Washington, Box 357236, Seattle, WA, 98195, USA.,Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Timothy W Randolph
- Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Lesley F Tinker
- Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Rami Nassir
- Department of Biochemistry and Molecular Medicine, University of California, Davis, CA, USA
| | - Lifang Hou
- Department of Preventive Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Garnet L Anderson
- Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Karl T Kelsey
- Departments of Epidemiology and Pathology and Laboratory Medicine, Brown University, Providence, RI, USA
| | - Emily White
- Department of Epidemiology, School of Public Health, University of Washington, Box 357236, Seattle, WA, 98195, USA.,Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Parveen Bhatti
- Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, WA, USA.,Cancer Control Research, BC Cancer, Vancouver, BC, Canada
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Lorenzo-Gonzalez M, Ruano-Ravina A, Torres-Duran M, Kelsey KT, Provencio M, Parente-Lamelas I, Piñeiro-Lamas M, Varela-Lema L, Perez-Rios M, Fernandez-Villar A, Barros-Dios JM. Lung cancer risk and residential radon exposure: A pooling of case-control studies in northwestern Spain. Environ Res 2020; 189:109968. [PMID: 32736146 DOI: 10.1016/j.envres.2020.109968] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Revised: 06/20/2020] [Accepted: 07/16/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND Through a pooled case-control study design, we have assessed the relationship between residential radon exposure and lung cancer risk. Other objectives of the study were to evaluate the different risk estimates for the non-small cell lung cancer histological types and to assess the effect modification of the radon exposure on lung cancer risk by tobacco consumption. METHODS We collected individual data from various case-control studies performed in northwest Spain that investigated residential radon and lung cancer. Cases had a confirmed anatomopathological diagnosis of primary lung cancer and controls were selected because they were undergoing ambulatory evaluation or surgical procedures that were unrelated to tobacco use. Residential radon was measured using alpha track detectors. Results were analyzed using logistic regression. RESULTS 3704 participants were enrrolled, 1842 cases and 1862 controls. Data show that lung cancer risk increases with radon exposure, finding a significant association of radon exposure with lung cancer at radon exposures above 50 Bq/m3. The estimated adjusted OR for individuals exposed to concentrations >200 Bq/m3 was 2.06 (95% CI: 1.61-2.64) compared with those exposed to ≤50 Bq/m3. Within a smoking category, lung cancer risk increases markedly as radon concentration increases, reaching an OR of 29.3 (95% CI: 15.4-55.7) for heavy smokers exposed to more than 200 Bq/m.3 CONCLUSIONS: This study confirms that residential radon exposure is a risk factor for lung cancer well below action levels established by international organizations. As expected, there is also an effect modification between radon exposure and tobacco consumption.
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Affiliation(s)
- María Lorenzo-Gonzalez
- Department of Preventive Medicine and Public Health, University of Santiago de Compostela, Spain
| | - Alberto Ruano-Ravina
- Department of Preventive Medicine and Public Health, University of Santiago de Compostela, Spain; Consortium for Biomedical Research in Epidemiology and Public Health (CIBER en Epidemiología y Salud Pública- CIBERESP), Spain; Department of Epidemiology, Brown School of Public Health, Brown University, Providence, RI, USA.
| | | | - Karl T Kelsey
- Department of Epidemiology, Brown School of Public Health, Brown University, Providence, RI, USA
| | - Mariano Provencio
- Service of Oncology, Puerta de Hierro University Hospital, Madrid, Spain
| | | | - María Piñeiro-Lamas
- Consortium for Biomedical Research in Epidemiology and Public Health (CIBER en Epidemiología y Salud Pública- CIBERESP), Spain
| | - Leonor Varela-Lema
- Galician Agency for Health Technology Assessment, Avalia-t. ACIS, SERGAS. Galician Health Service, Spain
| | - Monica Perez-Rios
- Department of Preventive Medicine and Public Health, University of Santiago de Compostela, Spain; Consortium for Biomedical Research in Epidemiology and Public Health (CIBER en Epidemiología y Salud Pública- CIBERESP), Spain
| | | | - Juan M Barros-Dios
- Department of Preventive Medicine and Public Health, University of Santiago de Compostela, Spain; Consortium for Biomedical Research in Epidemiology and Public Health (CIBER en Epidemiología y Salud Pública- CIBERESP), Spain; Service of Preventive Medicine, University Hospital Complex of Santiago de Compostela, Spain
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44
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Michaud DS, Ruan M, Koestler DC, Pei D, Marsit CJ, De Vivo I, Kelsey KT. Epigenome-Wide Association Study Using Prediagnostic Bloods Identifies New Genomic Regions Associated With Pancreatic Cancer Risk. JNCI Cancer Spectr 2020; 4:pkaa041. [PMID: 33134824 PMCID: PMC7583152 DOI: 10.1093/jncics/pkaa041] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Revised: 04/18/2020] [Accepted: 05/12/2020] [Indexed: 01/18/2023] Open
Abstract
BACKGROUND Epigenome-wide association studies using peripheral blood have identified specific sites of DNA methylation associated with risk of various cancers and may hold promise to identify novel biomarkers of risk; however, few studies have been performed for pancreatic cancer and none using a prospective study design. METHODS Using a nested case-control study design, incident pancreatic cancer cases and matched controls were identified from participants who provided blood at baseline in 3 prospective cohort studies. DNA methylation levels were measured in DNA extracted from leukocytes using the Illumina MethylationEPIC array. Average follow-up period for this analysis was 13 years. RESULTS Several new genomic regions were identified as being differentially methylated in cases and controls; the 5 strongest associations were observed for CpGs located in genes TMEM204/IFT140, MFSD6L, FAM134B/RETREG1, KCNQ1D, and C6orf227. For some CpGs located in chromosome 16p13.3 (near genes TMEM204 and IFT140), associations were stronger with shorter time to diagnosis (eg, odds ratio [OR] = 5.95, 95% confidence interval [CI] = 1.52 to 23.12, for top vs bottom quartile, for <5 years between blood draw and cancer diagnosis), but associations remained statistically significantly higher even when cases were diagnosed over 10 years after blood collection. Statistically significant differences in DNA methylation levels were also observed in the gastric secretion pathway using Gene Set Enrichment Analysis (GSEA) analysis. CONCLUSIONS Changes in DNA methylation in peripheral blood may mark alterations in metabolic or immune pathways that play a role in pancreatic cancer. Identifying new biological pathways in carcinogenesis of pancreatic cancer using epigenome-wide association studies approach could provide new opportunities for improving treatment and prevention.
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Affiliation(s)
- Dominique S Michaud
- Department of Public Health & Community Medicine, Tufts University School of Medicine, Tufts University, Boston, MA, USA
- Department of Epidemiology, Brown University, Providence, RI, USA
- Correspondence: Dominique S. Michaud, ScD, Tufts University School of Medicine, 136 Harrison Avenue, Boston, MA 02111, USA (e-mail: )
| | - Mengyuan Ruan
- Department of Public Health & Community Medicine, Tufts University School of Medicine, Tufts University, Boston, MA, USA
| | - Devin C Koestler
- Department of Biostatistics & Data Science, University of Kansas Medical Center, Kansas City, KS, USA
- University of Kansas Cancer Center, University of Kansas Medical Center, Kansas City, KS, USA
| | - Dong Pei
- Department of Biostatistics & Data Science, University of Kansas Medical Center, Kansas City, KS, USA
- University of Kansas Cancer Center, University of Kansas Medical Center, Kansas City, KS, USA
| | - Carmen J Marsit
- Department of Environmental Health and Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, GA, USA
| | - Immaculata De Vivo
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women’s Hospital, and Harvard Medical School, Boston, MA, USA
| | - Karl T Kelsey
- Department of Epidemiology, Brown University, Providence, RI, USA
- Department of Pathology and Laboratory Medicine, Brown University, Providence, RI, USA
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45
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Song Q, Seigne JD, Schned AR, Kelsey KT, Karagas MR, Hassanpour S. A Machine Learning Approach for Long-Term Prognosis of Bladder Cancer based on Clinical and Molecular Features. AMIA Jt Summits Transl Sci Proc 2020; 2020:607-616. [PMID: 32477683 PMCID: PMC7233061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Improving the consistency and reproducibility of bladder cancer prognoses necessitates the development of accurate, predictive prognostic models. Current methods of determining the prognosis of bladder cancer patients rely on manual decision-making, including factors with high intra- and inter-observer variability, such as tumor grade. To advance the long-term prediction of bladder cancer prognoses, we developed and tested a computational model to predict the 10-year overall survival outcome using population-based bladder cancer data, without considering tumor grade classification. The resulted predictive model demonstrated promising performance using a combination of clinical and molecular features, and was also strongly related to patient overall survival in Cox models. Our study suggests that machine learning methods can provide reliable long-term prognoses for bladder cancer patients, without relying on the less consistent tumor grade. If validated in clinical trials, this automated approach could guide and improve personalized management and treatment for bladder cancer patients.
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Affiliation(s)
- Qingyuan Song
- Department of Biomedical Data Science, Dartmouth College, Hanover, NH
| | - John D Seigne
- Department of Surgery, Division of Urology, Dartmouth-Hitchcock Medical Center, Lebanon, NH
| | - Alan R Schned
- Department of Pathology and Laboratory Medicine, Dartmouth-Hitchcock Medical Center, Lebanon, NH
| | - Karl T Kelsey
- Departments of Epidemiology and Pathology and Laboratory Medicine, Brown University, Providence, RI
| | | | - Saeed Hassanpour
- Department of Biomedical Data Science, Dartmouth College, Hanover, NH
- Department of Epidemiology, Dartmouth College, Hanover, NH
- Department of Computer Science, Dartmouth College, Hanover, NH
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46
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Michaud DS, Ruan M, Koestler DC, Alonso L, Molina-Montes E, Pei D, Marsit CJ, De Vivo I, Malats N, Kelsey KT. DNA Methylation-Derived Immune Cell Profiles, CpG Markers of Inflammation, and Pancreatic Cancer Risk. Cancer Epidemiol Biomarkers Prev 2020; 29:1577-1585. [PMID: 32430337 DOI: 10.1158/1055-9965.epi-20-0378] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Revised: 04/09/2020] [Accepted: 05/13/2020] [Indexed: 02/04/2023] Open
Abstract
BACKGROUND Pancreatic cancer is projected to become the second most common cause of cancer-related death over the next 5 years. Because inflammation is thought to be a common trajectory for disease initiation, we sought to prospectively characterize immune profiles using DNA methylation markers and examine DNA methylation levels previously linked to inflammation biomarkers to evaluate whether these immune markers play a key role in pancreatic cancer. METHODS In a nested case-control study pooling three U.S. prospective cohort studies, DNA methylation was measured in prediagnostic leukocytes of incident pancreatic cancer cases and matched controls using the Illumina MethylationEPIC array. Differentially methylated regions were used to predict immune cell types, and CpGs previously associated with inflammatory biomarkers were selected for the analysis. DNA methylation data from a retrospective case-control study conducted in Spain (PanGenEU) was used for independent replication. RESULTS Immune cell proportions and ratio of cell proportions were not associated with pancreatic cancer risk in the nested case-control study. Methylation extent of CpGs residing in or near gene MNDA was significantly associated with pancreatic cancer risk in the nested case-control study and replicated in PanGenEU. Methylation level of a promoter CpG of gene PIM-1 was associated with survival in both studies. CONCLUSIONS Using a targeted approach, we identified several CpGs that may play a role in pancreatic carcinogenesis in two large, independent studies with distinct study designs. IMPACT These findings could provide insight into critical pathways that may help identify new markers of early disease and survival.
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Affiliation(s)
- Dominique S Michaud
- Department of Public Health & Community Medicine, Tufts University School of Medicine, Tufts University, Boston, Massachusetts.
- Department of Epidemiology, Brown University, Providence, Rhode Island
| | - Mengyuan Ruan
- Department of Public Health & Community Medicine, Tufts University School of Medicine, Tufts University, Boston, Massachusetts
| | - Devin C Koestler
- Department of Biostatistics & Data Science, University of Kansas Medical Center, Kansas City, Kansas
- University of Kansas Cancer Center, University of Kansas Medical Center, Kansas City, Kansas
| | - Lola Alonso
- Genetic and Molecular Epidemiology Group, Spanish National Cancer Research Centre (CNIO) and CIBERONC, Madrid, Spain
| | - Esther Molina-Montes
- Genetic and Molecular Epidemiology Group, Spanish National Cancer Research Centre (CNIO) and CIBERONC, Madrid, Spain
| | - Dong Pei
- Department of Biostatistics & Data Science, University of Kansas Medical Center, Kansas City, Kansas
- University of Kansas Cancer Center, University of Kansas Medical Center, Kansas City, Kansas
| | - Carmen J Marsit
- Department of Environmental Health and Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, Georgia
| | - Immaculata De Vivo
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts
| | - Núria Malats
- Genetic and Molecular Epidemiology Group, Spanish National Cancer Research Centre (CNIO) and CIBERONC, Madrid, Spain
| | - Karl T Kelsey
- Department of Epidemiology, Brown University, Providence, Rhode Island
- Department of Pathology and Laboratory Medicine, Brown University, Providence, Rhode Island
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Chung M, Zhao N, Meier R, Koestler DC, Castillo ED, Wu G, Paster BJ, Charpentier K, Izard J, Kelsey KT, Michaud DS. Abstract B07: Oral, intestinal, and pancreatic microbiomes are correlated and exhibit co-abundance in patients with pancreatic cancer and other gastrointestinal diseases. Cancer Res 2020. [DOI: 10.1158/1538-7445.mvc2020-b07] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Growing research has examined the association of oral microbiome with pancreatic cancer risk, but results have been inconsistent. Our previous study showed that bacterial taxa known to inhabit the oral cavity were common in the pancreas microbiome, and that bacterial DNA profiles in the pancreas were similar to those in the duodenum tissue of the same subjects regardless of disease state. These data suggest that bacteria may be migrating from oral into the gut and pancreas. We collected oral swabs and at least one pancreatic tissue or intestinal samples from subjects who underwent surgery for pancreatic diseases or diseases and characterized 16S ribosomal RNA genes using high-throughput DNA sequencing. We then quantified bacterial communities (Amplicon Sequence Variant level) at different body sites, investigated their co-abundance patterns, and analyzed the correlations between microbiome at oral sites and that in pancreatic tissue and intestinal samples using concordance statistics and Pairwise Stratified Association (PASTA) testing. The present analysis included 52 subjects (46% with pancreatic cancer; aged from 31 to 86 years old) contributing a total 324 samples. We identified a total of 73 unique Amplicon Sequence Variants (ASVs) that were shared between oral and pancreatic or intestinal samples. Accounting for pairing and within-subject correlation, 7 ASVs showed significant concordance (Kappa statistics) and 5 ASVs exhibited significant or marginally significant PASTA between oral samples and pancreatic tissue or intestinal samples. Of these, our PASTA analyses identified two specific bacterial species (Gemella morbillorum and Fusobacterium nucleatum subsp. vincentii) that showed consistent presence or absence patterns between oral and intestinal or pancreatic samples. Lastly, our microbial co-abundance analyses showed several distinct ASVs clusters and complex correlation-networks between ASV clusters in buccal, saliva, duodenum, jejunum, and pancreatic tumor samples. Oral, intestinal, and pancreatic microbiomes are correlated. Bacteria of oral origin exhibit co-abundance relationships and demonstrate complex correlation patterns in the intestinal and pancreatic tumor samples. Growing evidence has shown that bacterial species may survive, decline, and adapt as interdependent functional groups. Future studies should aim to uncover the co-abundance of specific microbial communities for studying etiology of microbiota-driven carcinogenesis in prospective and longitudinal studies.
Citation Format: Mei Chung, Naisi Zhao, Richard Meier, Devein C. Koestler, Erika Del Castillo, Guojun Wu, Bruce J. Paster, Kevin Charpentier, Jacques Izard, Karl T. Kelsey, Dominique S. Michaud. Oral, intestinal, and pancreatic microbiomes are correlated and exhibit co-abundance in patients with pancreatic cancer and other gastrointestinal diseases [abstract]. In: Proceedings of the AACR Special Conference on the Microbiome, Viruses, and Cancer; 2020 Feb 21-24; Orlando, FL. Philadelphia (PA): AACR; Cancer Res 2020;80(8 Suppl):Abstract nr B07.
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Affiliation(s)
- Mei Chung
- 1Department of Public Health and Community Medicine, School of Medicine, Tufts University, Boston, MA,
| | - Naisi Zhao
- 1Department of Public Health and Community Medicine, School of Medicine, Tufts University, Boston, MA,
| | - Richard Meier
- 2Department of Biostatistics, University of Kansas Medical Center, Kansas City, KS,
| | - Devein C. Koestler
- 2Department of Biostatistics, University of Kansas Medical Center, Kansas City, KS,
| | | | - Guojun Wu
- 4Department of Biochemistry and Microbiology, Center for Nutrition, Microbiome and Health, New Jersey Institute for Food, Nutrition and Health, Rutgers University, New Brunswick, NJ,
| | | | | | - Jacques Izard
- 6Department of Food Science and Technology, University of Nebraska, Lincoln, NE,
| | - Karl T. Kelsey
- 7Center for Environmental Health and Technology, Brown University, Providence, RI
| | - Dominique S. Michaud
- 1Department of Public Health and Community Medicine, School of Medicine, Tufts University, Boston, MA,
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48
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Langevin SM, Eliot M, Butler RA, McClean M, Kelsey KT. Firefighter occupation is associated with increased risk for laryngeal and hypopharyngeal squamous cell carcinoma among men from the Greater Boston area. Occup Environ Med 2020; 77:381-385. [PMID: 32107319 DOI: 10.1136/oemed-2019-106271] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Revised: 01/13/2020] [Accepted: 01/19/2020] [Indexed: 11/03/2022]
Abstract
OBJECTIVE Firefighters are exposed to a wide variety of carcinogens during the line of duty, including several associated with head and neck cancer. Existing studies assessing head and neck cancer risk with firefighting have predominately included occupational cohorts or registry data, which are limited by inability to adjust for smoking and alcohol consumption-major risk factors for head and neck cancer. Our objective was to assess the risk of head and neck cancer among men with an occupational history as a firefighter. METHODS This work was conducted using male subjects from a large population-based case-control study of head and neck cancer from the greater Boston area using self-reported occupational history (718 cases and 905 controls). RESULTS An occupational history as a firefighter was reported for 11 cases and 14 controls. Although no significant association was observed overall, we observed substantial increased risk for hypopharyngeal and laryngeal squamous cell carcinoma among professional municipal firefighters who had a light or no smoking history (OR=8.06, 95% CI 1.74 to 37.41), with significantly increasing risk per decade as a firefighter (OR=2.10, 95% CI 1.06 to 4.14). CONCLUSION Professional municipal firefighters may be at increased risk for hypopharyngeal and laryngeal squamous cell carcinoma due to carcinogenic exposures encountered during the line of duty.
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Affiliation(s)
- Scott M Langevin
- Department of Environmental Health, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA .,University of Cincinnati Cancer Center, Cincinnati, Ohio, USA
| | - Melissa Eliot
- Department of Epidemiology, Brown University School of Public Health, Providence, Rhode Island, USA
| | - Rondi A Butler
- Department of Epidemiology, Brown University School of Public Health, Providence, Rhode Island, USA
| | - Michael McClean
- Deparment of Environmental Health, Boston University School of Public Health, Boston, Massachusetts, USA
| | - Karl T Kelsey
- Department of Epidemiology, Brown University School of Public Health, Providence, Rhode Island, USA.,Department of Pathology & Laboratory Medicine, Brown University Warren Alpert Medical School, Providence, Rhode Island, USA
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49
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Gilman SE, Huang YT, Jimenez MP, Agha G, Chu SH, Eaton CB, Goldstein RB, Kelsey KT, Buka SL, Loucks EB. Early life disadvantage and adult adiposity: tests of sensitive periods during childhood and behavioural mediation in adulthood. Int J Epidemiol 2020; 48:98-107. [PMID: 30277525 DOI: 10.1093/ije/dyy199] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/24/2018] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Early exposure to socioeconomic disadvantage is associated with obesity. Here we investigated how early, and conducted mediation analyses to identify behavioural factors in adulthood that could explain why. METHODS Among 931 participants in the New England Family Study, we investigated the associations of family socioeconomic disadvantage measured before birth and at age 7 years with the following measures of adiposity in mid-adulthood (mean age = 44.4 years): body mass index (BMI), waist circumference and, among 400 participants, body composition from dual-energy X-ray absorption scans. RESULTS In linear regressions adjusting for age, sex, race and childhood BMI Z-score, participants in the highest tertile of socioeconomic disadvantage at birth had 2.6 additional BMI units in adulthood [95% confidence interval (CI) = 1.26, 3.96], 5.62 cm waist circumference (95% CI = 2.69, 8.55), 0.73 kg of android fat mass (95% CI = 0.25, 1.21), and 7.65 higher Fat Mass Index (95% CI = 2.22, 13.09). Conditional on disadvantage at birth, socioeconomic disadvantage at age 7 years was not associated with adult adiposity. In mediation analyses, 10-20% of these associations were explained by educational attainment and 5-10% were explained by depressive symptoms. CONCLUSIONS Infancy may be a sensitive period for exposure to socioeconomic disadvantage, as exposure in the earliest years of life confers a larger risk for overall and central adiposity in mid-adulthood than exposure during childhood. Intervention on these two adult risk factors for adiposity would, if all model assumptions were satisfied, only remediate up to one-fifth of the excess adult adiposity among individuals born into socioeconomically disadvantaged households.
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Affiliation(s)
- Stephen E Gilman
- Social and Behavioral Sciences Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, Bethesda, MD, USA.,Department of Mental Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Yen-Tsung Huang
- Institute of Statistical Science, Academia Sinica, Taipei, Taiwan.,Department of Epidemiology.,Department of Biostatistics, Brown School of Public Health, Providence, RI, USA
| | | | - Golareh Agha
- Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, New York, NY, USA
| | - Su H Chu
- Channing Division of Network Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA
| | | | - Risë B Goldstein
- Social and Behavioral Sciences Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, Bethesda, MD, USA
| | - Karl T Kelsey
- Department of Epidemiology.,Department of Pathology and Laboratory Medicine, Alpert Medical School of Brown University, Providence, RI, USA
| | | | - Eric B Loucks
- Department of Epidemiology.,Department of Behavioural and Social Sciences, Brown School of Public Health, Providence, RI, USA.,Department of Medicine, Warren Alpert Medical School of Brown University, Providence, RI, USA
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50
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Chu SH, Kelsey KT, Koestler DC, Loucks EB, Huang YT. Leveraging cell-specific differentially methylated regions to identify leukocyte infiltration in adipose tissue. Genet Epidemiol 2019; 43:1018-1029. [PMID: 31433079 PMCID: PMC6829028 DOI: 10.1002/gepi.22252] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Revised: 07/02/2019] [Accepted: 07/16/2019] [Indexed: 12/16/2022]
Abstract
Obesity is understood to be an inflammatory condition characterized in part by changes in resident immune cell populations in adipose tissue. However, much of this knowledge has been obtained through experimental animal models. Epigenetic mechanisms, such as DNA methylation may be useful tools for characterizing the changes in immune cell populations in human subjects. In this study, we introduce a simple and intuitive method for assessing cellular infiltration by blood into other heterogeneous, admixed tissues such as adipose tissue, and apply this approach in a large human cohort study. Associations between higher leukocyte infiltration, measured by evaluating a distance measure between the methylation signatures of leukocytes and adipose tissue, and increasing body mass index (BMI) or android fat mass (AFM) were identified and validated in independent replication samples for CD4 (pBMI = 0.009, pAFM = 0.020), monocytes (pBMI = 0.001, pAFM = 4.3 × 10-4 ), and dendritic cells (pBMI = 0.571, pAFM = 0.012). Patterns of depletion with increasing adiposity were observed for plasma B (pBMI = 0.430, pAFM = 0.004) and immature B (pBMI = 0.022, pAFM = 0.042) cells. CD4, dendritic, monocytes, immature B, and plasma B cells may be important agents in the inflammatory process. Finally, the method used to assess leukocyte infiltration in this study is straightforwardly extended to other cell types and tissues in which infiltration might be of interest.
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Affiliation(s)
- Su H. Chu
- Department of Epidemiology, School of Public Health, Brown University, Providence, RI USA 02912
- Channing Division of Network Medicine, Brigham and Women’s Hospital, Boston, MA USA 02115
- Department of Medicine, Harvard Medical School, Boston, MA USA 02115
| | - Karl T. Kelsey
- Department of Epidemiology, School of Public Health, Brown University, Providence, RI USA 02912
- Department of Pathology and Laboratory Medicine, Warren Alpert Medical School, Brown University
| | - Devin C. Koestler
- Department of Biostatistics, University of Kansas Medical Center, Kansas City, KS USA
| | - Eric B. Loucks
- Department of Epidemiology, School of Public Health, Brown University, Providence, RI USA 02912
| | - Yen-Tsung Huang
- Department of Epidemiology, School of Public Health, Brown University, Providence, RI USA 02912
- Department of Biostatistics, School of Public Health, Brown University, Providence, RI USA 02912
- Institute of Statistical Science, Academia Sinica, Taipei City, Taiwan
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