Regional differences on production of chemokines in gastric mucosa between Helicobacter pylori-positive duodenal ulcer and gastric ulcer.
It is well known that antrum-predominant gastritis and pan-gastritis occurs in the patients with Helicobacter pylori-positive duodenal ulcer (DU) and gastric ulcer (GU), respectively. However, the role of chemokines in the pathogenesis of these pathologies is unclear. We examined the regional differences in mucosal chemokine production in patients with DU and GU. The production of interleukin-8 (IL-8), growth-related gene (GRO) alpha, and macrophage inflammatory protein (MIP)-1alpha was greater in the antrum than in the corpus in DU patients. In the patients with GU, monocyte chemoattractant protein (MCP)-1 levels in the mucosa adjacent to ulcer were greater than those away for the ulcer in the corpus. The reduction in chemokine production occurring in association with the eradication of H. pylori differed between DU and GU patients in the antrum (IL-8, P = 0.0394; GROalpha, P = 0.0149; MIP-1alpha, P = 0.0246; MCP-1, P = 0.0087). The data imply a different pathogenesis may exist for the gastritis present in patients with DU and GU occurring in H. pylori-positive individuals.
Sato
Y
Y
Third Department of Internal Medicine, Niigata University School of Medicine, Japan.
Sugimura
K
K
Mochizuki
T
T
Honma
T
T
Suriki
H
H
Tashiro
K
K
Ishizuka
K
K
Narisawa
R
R
Ichida
T
T
Van Thiel
D H
DH
Asakura
H
H
D000328:Adult; D000368:Aged; D018932:Chemokine CCL2 / Q000096:biosynthesis; D054405:Chemokine CCL3; D054407:Chemokine CCL4; D018946:Chemokine CCL5 / Q000096:biosynthesis; D054360:Chemokine CXCL1; D018925:Chemokines / Q000096:biosynthesis*; D019743:Chemokines, CXC; D002630:Chemotactic Factors / Q000096:biosynthesis; D004381:Duodenal Ulcer / Q000378:metabolism*; D005260:Female; D005753:Gastric Mucosa / Q000378:metabolism*; D006133:Growth Substances / Q000096:biosynthesis; D016481:Helicobacter Infections / Q000378:metabolism*; D016480:Helicobacter pylori; D006801:Humans; D036341:Intercellular Signaling Peptides and Proteins; D016209:Interleukin-8 / Q000096:biosynthesis; D019402:Macrophage Inflammatory Proteins / Q000096:biosynthesis; D008297:Male; D008875:Middle Aged; D009924:Organ Culture Techniques; D011706:Pyloric Antrum / Q000378:metabolism; D013276:Stomach Ulcer / Q000378:metabolism*
C475829:CXCL1 protein, human; D018932:Chemokine CCL2; D054405:Chemokine CCL3; D054407:Chemokine CCL4; D018946:Chemokine CCL5; D054360:Chemokine CXCL1; D018925:Chemokines; D019743:Chemokines, CXC; D002630:Chemotactic Factors; D006133:Growth Substances; D036341:Intercellular Signaling Peptides and Proteins; D016209:Interleukin-8; D019402:Macrophage Inflammatory Proteins