Recent progress in carcinogenesis, progression and management of upper GI cancer: the 21st Hiroshima Cancer Seminar--the 5th Three Universities' Consortium International Symposium, 6 November 2011, International Conference Center Hiroshima.
The 21st Hiroshima Cancer Seminar focused on recent progress of carcinogenesis, progression and management of upper gastrointestinal cancers. β-Catenin and p120 mediate peroxisome proliferator-activated receptor δ-dependent proliferation induced by Helicobacter pylori in gastric epithelia. Helicobacter pylori CagA plays an important role in stomach carcinogenesis via altered signal transduction and cell polarity by interactions with several host proteins. Inflammation caused by H. pylori infection is responsible for inducing aberrant DNA methylation. The gastric gland mucin-specific αGlcNAc plays dual roles in preventing gastric cancer, inhibition of H. pylori infection and suppression of tumor-promoting inflammation. Information obtained from transcriptome dissection greatly contributes to understanding the molecular character of each mucin phenotype of gastric cancer. The standardized biomarkers will serve as good predictive and prognostic markers for gastric cancer. A microRNA expression profile may be useful for the diagnosis of gastric cancer. Bone marrow-derived mesenchymal stem cells may provide an advantageous microenvironment for re-acquisition of stemness of gastric cancer cells. Recent progress in molecular biology research has enabled the clinical development of molecular targeting agents for gastric cancer, such as trastuzumab. The target molecule-based inhibition of the stromal reaction in the microenvironment may hold promise as an effective anti-tumor therapy. Since robotic surgery is feasible and safe, and provides adequate and precise lymph node dissection, it may be one of the good options for gastric cancer in the near future.
Hiroshima Cancer Seminar Foundation, 3-8-6 Sendamachi, Naka-ku, Hiroshima 730-0052, Japan.
Wataru
W
Yasui
Hisao
H
Ito
Richard
R
Peek
Eiichi
E
Tahara
D000942:Antigens, Bacterial / Q000502:physiology; D001426:Bacterial Proteins / Q000502:physiology; D002471:Cell Transformation, Neoplastic / Q000235:genetics* / Q000473:pathology; D018450:Disease Progression; D005770:Gastrointestinal Neoplasms / Q000235:genetics / Q000382:microbiology* / Q000473:pathology / Q000628:therapy; D016481:Helicobacter Infections / Q000150:complications; D016480:Helicobacter pylori / Q000378:metabolism; D006801:Humans; D013274:Stomach Neoplasms
D000942:Antigens, Bacterial; D001426:Bacterial Proteins; C080866:cagA protein, Helicobacter pylori