TY - JOUR
T1 - Periodontal and Other Oral Bacteria and Risk of Lung Cancer in the Atherosclerosis Risk in Communities (ARIC) Study
AU - Zhou, Baijun
AU - Lu, Jiayun
AU - Beck, James D.
AU - Moss, Kevin L.
AU - Prizment, Anna E.
AU - Demmer, Ryan T.
AU - Porosnicu Rodriguez, Kori A.
AU - Joshu, Corinne E.
AU - Michaud, Dominique S.
AU - Platz, Elizabeth A.
N1 - Publisher Copyright:
© 2022 American Association for Cancer Research.
PY - 2023
Y1 - 2023
N2 - Background: Evidence suggests that periodontal disease is associated with increased lung cancer risk, but whether periodontal pathogens are explanatory is unknown. We prospectively studied associations of prediagnostic circulating antibodies with oral bacteria and of periodontal bacteria in subgingival plaque with lung cancer. Methods: We included 4,263 cancer-free participants in the Atherosclerosis Risk in Communities study with previously measured serum IgG antibodies to 18 oral bacteria. In 1,287 participants for whom subgingival plaque was collected, counts for 8 periodontal bacteria were previously measured. Incident lung cancers (N ¼ 118) were ascertained through 2015 (median follow-up ¼ 17.5 years). We used Cox regression to estimate multivariable-adjusted associations, including for sums of antibodies to orange (C. rectus, F. nucleatum, P. intermedia, P. micra, and P. nigrescens) and red (P. gingivalis, T. forsythensis, and T. denticola) complex bacteria. Results: Orange complex bacteria antibodies were positively associated with lung cancer [per IQR hazard ratios (HR) ¼ 1.15; 95% confidence intervals (CI), 1.02–1.29], which was stronger in men (HR ¼ 1.27, 95% CI 1.08–1.49), and explained by P. intermedia and P. nigrescens (HR ¼ 1.15; 95% CI, 1.04–1.26). Suggestive positive associations with lung cancer (N ¼ 40) were observed for F. nucleatum, A. actinomycetemcomitans, and P. gingivalis counts. Significant positive associations were found for the count to antibody ratio for P. intermedia and P. gingivalis. Conclusions: We identified positive associations with lung cancer for oral bacteria, especially orange complex that are moderately pathogenic for periodontal disease. Impact: This prospective study supports the need for more research on periodontal bacteria in lung cancer etiology. If associations are supported, this may inform novel lung cancer prevention strategies.
AB - Background: Evidence suggests that periodontal disease is associated with increased lung cancer risk, but whether periodontal pathogens are explanatory is unknown. We prospectively studied associations of prediagnostic circulating antibodies with oral bacteria and of periodontal bacteria in subgingival plaque with lung cancer. Methods: We included 4,263 cancer-free participants in the Atherosclerosis Risk in Communities study with previously measured serum IgG antibodies to 18 oral bacteria. In 1,287 participants for whom subgingival plaque was collected, counts for 8 periodontal bacteria were previously measured. Incident lung cancers (N ¼ 118) were ascertained through 2015 (median follow-up ¼ 17.5 years). We used Cox regression to estimate multivariable-adjusted associations, including for sums of antibodies to orange (C. rectus, F. nucleatum, P. intermedia, P. micra, and P. nigrescens) and red (P. gingivalis, T. forsythensis, and T. denticola) complex bacteria. Results: Orange complex bacteria antibodies were positively associated with lung cancer [per IQR hazard ratios (HR) ¼ 1.15; 95% confidence intervals (CI), 1.02–1.29], which was stronger in men (HR ¼ 1.27, 95% CI 1.08–1.49), and explained by P. intermedia and P. nigrescens (HR ¼ 1.15; 95% CI, 1.04–1.26). Suggestive positive associations with lung cancer (N ¼ 40) were observed for F. nucleatum, A. actinomycetemcomitans, and P. gingivalis counts. Significant positive associations were found for the count to antibody ratio for P. intermedia and P. gingivalis. Conclusions: We identified positive associations with lung cancer for oral bacteria, especially orange complex that are moderately pathogenic for periodontal disease. Impact: This prospective study supports the need for more research on periodontal bacteria in lung cancer etiology. If associations are supported, this may inform novel lung cancer prevention strategies.
UR - http://www.scopus.com/inward/record.url?scp=85151575070&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85151575070&partnerID=8YFLogxK
U2 - 10.1158/1055-9965.EPI-22-0601
DO - 10.1158/1055-9965.EPI-22-0601
M3 - Article
C2 - 35999656
AN - SCOPUS:85151575070
SN - 1055-9965
VL - 32
SP - 505
EP - 515
JO - Cancer Epidemiology Biomarkers and Prevention
JF - Cancer Epidemiology Biomarkers and Prevention
IS - 4
ER -