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Helicobacter pylori Seropositivity, ABO Blood Type, and Pancreatic Cancer Risk From 5 Prospective Cohorts

Lee, Alice A ; Wang, Qiao-Li LU orcid ; Kim, Jihye ; Babic, Ana ; Zhang, Xuehong ; Perez, Kimberly ; Ng, Kimmie ; Nowak, Jonathan ; Rifai, Nader and Sesso, Howard D , et al. (2023) In Clinical and translational gastroenterology 14(5).
Abstract

BACKGROUND: Helicobacter pylori infection may be a risk factor for pancreatic cancer, particularly infection by strains without the cytotoxin-associated gene A (CagA) virulence factor. Non-O blood type is a known risk factor for pancreatic cancer, and H. pylori gastric colonization occurs largely from bacterial adhesins binding to blood group antigens on gastric mucosa.

METHODS: We included 485 pancreatic cancer cases and 1,122 matched controls from 5 U.S. prospective cohorts. Prediagnostic plasma samples were assessed for H. pylori and CagA antibody titers. Conditional logistic regression was used to estimate odds ratios (ORs) and 95% confidence intervals (CIs) for pancreatic cancer. ABO blood type was assessed using genetic... (More)

BACKGROUND: Helicobacter pylori infection may be a risk factor for pancreatic cancer, particularly infection by strains without the cytotoxin-associated gene A (CagA) virulence factor. Non-O blood type is a known risk factor for pancreatic cancer, and H. pylori gastric colonization occurs largely from bacterial adhesins binding to blood group antigens on gastric mucosa.

METHODS: We included 485 pancreatic cancer cases and 1,122 matched controls from 5 U.S. prospective cohorts. Prediagnostic plasma samples were assessed for H. pylori and CagA antibody titers. Conditional logistic regression was used to estimate odds ratios (ORs) and 95% confidence intervals (CIs) for pancreatic cancer. ABO blood type was assessed using genetic polymorphisms at the ABO gene locus or self-report.

RESULTS: Compared with H. pylori -seronegative participants, those who were seropositive did not demonstrate an increased risk of pancreatic cancer (OR 0.83, 95% CI 0.65-1.06). This lack of association was similar among CagA-seropositive (OR 0.75, 95% CI 0.53-1.04) and -seronegative (OR 0.89, 95% CI 0.65-1.20) participants. The association was also similar when stratified by time between blood collection and cancer diagnosis ( P -interaction = 0.80). Consistent with previous studies, non-O blood type was associated with increased pancreatic cancer risk, but this increase in risk was similar regardless of H. pylori seropositivity ( P -interaction = 0.51).

DISCUSSION: In this nested case-control study, history of H. pylori infection as determined by H. pylori antibody serology was not associated with pancreatic cancer risk, regardless of CagA virulence factor status. The elevated risk associated with non-O blood type was consistent in those with or without H. pylori seropositivity.

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publishing date
type
Contribution to journal
publication status
published
keywords
Humans, Bacterial Proteins, Antigens, Bacterial, Helicobacter pylori, Prospective Studies, Helicobacter Infections/complications, Case-Control Studies, Pancreatic Neoplasms/etiology
in
Clinical and translational gastroenterology
volume
14
issue
5
article number
e00573
publisher
Nature Publishing Group
external identifiers
  • scopus:85149493023
  • pmid:36854058
ISSN
2155-384X
DOI
10.14309/ctg.0000000000000573
language
English
LU publication?
no
additional info
Copyright © 2023 The Author(s). Published by Wolters Kluwer Health, Inc. on behalf of The American College of Gastroenterology.
id
36122b65-6ed0-406f-9d8f-4b889594b146
date added to LUP
2025-05-12 17:09:58
date last changed
2025-06-10 06:57:56
@article{36122b65-6ed0-406f-9d8f-4b889594b146,
  abstract     = {{<p>BACKGROUND: Helicobacter pylori infection may be a risk factor for pancreatic cancer, particularly infection by strains without the cytotoxin-associated gene A (CagA) virulence factor. Non-O blood type is a known risk factor for pancreatic cancer, and H. pylori gastric colonization occurs largely from bacterial adhesins binding to blood group antigens on gastric mucosa.</p><p>METHODS: We included 485 pancreatic cancer cases and 1,122 matched controls from 5 U.S. prospective cohorts. Prediagnostic plasma samples were assessed for H. pylori and CagA antibody titers. Conditional logistic regression was used to estimate odds ratios (ORs) and 95% confidence intervals (CIs) for pancreatic cancer. ABO blood type was assessed using genetic polymorphisms at the ABO gene locus or self-report.</p><p>RESULTS: Compared with H. pylori -seronegative participants, those who were seropositive did not demonstrate an increased risk of pancreatic cancer (OR 0.83, 95% CI 0.65-1.06). This lack of association was similar among CagA-seropositive (OR 0.75, 95% CI 0.53-1.04) and -seronegative (OR 0.89, 95% CI 0.65-1.20) participants. The association was also similar when stratified by time between blood collection and cancer diagnosis ( P -interaction = 0.80). Consistent with previous studies, non-O blood type was associated with increased pancreatic cancer risk, but this increase in risk was similar regardless of H. pylori seropositivity ( P -interaction = 0.51).</p><p>DISCUSSION: In this nested case-control study, history of H. pylori infection as determined by H. pylori antibody serology was not associated with pancreatic cancer risk, regardless of CagA virulence factor status. The elevated risk associated with non-O blood type was consistent in those with or without H. pylori seropositivity.</p>}},
  author       = {{Lee, Alice A and Wang, Qiao-Li and Kim, Jihye and Babic, Ana and Zhang, Xuehong and Perez, Kimberly and Ng, Kimmie and Nowak, Jonathan and Rifai, Nader and Sesso, Howard D and Buring, Julie E and Anderson, Garnet L and Wactawski-Wende, Jean and Wallace, Robert and Manson, JoAnn E and Giovannucci, Edward L and Stampfer, Meir J and Kraft, Peter and Fuchs, Charles S and Yuan, Chen and Wolpin, Brian M}},
  issn         = {{2155-384X}},
  keywords     = {{Humans; Bacterial Proteins; Antigens, Bacterial; Helicobacter pylori; Prospective Studies; Helicobacter Infections/complications; Case-Control Studies; Pancreatic Neoplasms/etiology}},
  language     = {{eng}},
  month        = {{05}},
  number       = {{5}},
  publisher    = {{Nature Publishing Group}},
  series       = {{Clinical and translational gastroenterology}},
  title        = {{Helicobacter pylori Seropositivity, ABO Blood Type, and Pancreatic Cancer Risk From 5 Prospective Cohorts}},
  url          = {{http://dx.doi.org/10.14309/ctg.0000000000000573}},
  doi          = {{10.14309/ctg.0000000000000573}},
  volume       = {{14}},
  year         = {{2023}},
}