3.4.18.1 down Helicobacter pylori antigens from subjects with gastritis, who are successful in eradicating the infection after antibiotic therapy, decrease the membrane expression of cathepsin X in THP-1 cells 708373 3.4.18.1 up Helicobacter pylori antigens from subjects with gastritis, who are unsuccessful in eradicating the infection after antibiotic therapy, increase the membrane expression of cathepsin X in THP-1 cells 708373 3.4.18.1 up the enzyme is upregulated in several types of cancer 755099