title: Nuclear expression of BCL10 or nuclear factor kappa B helps predict Helicobacter pylori-independent status of low-grade gastric mucosa-associated lymphoid tissue lymphomas with or without t(11;18)(q21;q21).
abstract: The t(11;18)(q21;q21) translocation is a specific marker for Helicobacter pylori-independent status of low-grade gastric mucosa-associated lymphoid tissue (MALT) lymphoma. However, there are no reliable markers to predict tumor response to H pylori eradication in patients without t(11;18)(q21;q21). Nuclear expression of BCL10 and nuclear factor kappa B (NF-kappaB) was recently found to be closely associated with H pylori-independent status of the high-grade counterpart of gastric MALT lymphoma, which usually lacks t(11;18)(q21;q21). This study examined whether these 2 markers can also predict H pylori-independent status of low-grade gastric MALT lymphomas without t(11; 18)(q21;q21). Sixty patients who underwent successful H pylori eradication for low-grade gastric MALT lymphomas were included. Forty-seven (78.3%) patients were negative for t(11;18)(q21;q21); among them, 36 (76.6%) were H pylori dependent and 11 (23.4%) were H pylori independent. Nuclear expression of BCL10 was significantly higher in H pylori-independent than in H pylori-dependent tumors (8 of 11 [72.7%] vs 3 of 36 [8.3%]; P < .001). Nuclear expression of NF-kappaB was also significantly higher in H pylori-independent than in H pylori-dependent tumors (7 of 11 [63.6%] vs 3 of 36 [8.3%]; P < .001). Further, nuclear translocation of BCL10 and NF-kappaB was observed in 12 of the 13 patients with t(11;18)(q21;q21), and all these 12 patients were H pylori independent. In summary, nuclear expression of BCL10 or NF-kappaB is predictive of H pylori-independent status of low-grade gastric MALT lymphoma with or without t(11;18)(q21; q21).
authors.affiliation: Department of Oncology, National Taiwan University Hospital, No. 7, Chung-Shan S Rd, Taipei, Taiwan.
authors.forename: Kun-Huei
authors.initials: KH
authors.lastname: Yeh
authors.forename: Sung-Hsin
authors.initials: SH
authors.lastname: Kuo
authors.forename: Li-Tzong
authors.initials: LT
authors.lastname: Chen
authors.forename: Tsui-Lien
authors.initials: TL
authors.lastname: Mao
authors.forename: Shin-Lian
authors.initials: SL
authors.lastname: Doong
authors.forename: Ming-Shiang
authors.initials: MS
authors.lastname: Wu
authors.forename: Hui-Chen
authors.initials: HC
authors.lastname: Hsu
authors.forename: Yi-Shin
authors.initials: YS
authors.lastname: Tzeng
authors.forename: Chi-Long
authors.initials: CL
authors.lastname: Chen
authors.forename: Jaw-Town
authors.initials: JT
authors.lastname: Lin
authors.forename: Ann-Lii
authors.initials: AL
authors.lastname: Cheng
mesh_terms: D021581:Active Transport, Cell Nucleus; D048868:Adaptor Proteins, Signal Transducing / Q000032:analysis*; D000328:Adult; D000368:Aged; D000074018:B-Cell CLL-Lymphoma 10 Protein; D015415:Biomarkers / Q000032:analysis; D002467:Cell Nucleus / Q000737:chemistry; D002880:Chromosomes, Human, Pair 11; D002887:Chromosomes, Human, Pair 18; D005260:Female; D016481:Helicobacter Infections / Q000188:drug therapy; D016480:Helicobacter pylori; D006801:Humans; D018442:Lymphoma, B-Cell, Marginal Zone / Q000175:diagnosis / Q000235:genetics* / Q000821:virology; D008297:Male; D008875:Middle Aged; D016328:NF-kappa B / Q000032:analysis*; D011237:Predictive Value of Tests; D013274:Stomach Neoplasms / Q000175:diagnosis / Q000235:genetics* / Q000821:virology; D014178:Translocation, Genetic; D016896:Treatment Outcome
chemical_list: D048868:Adaptor Proteins, Signal Transducing; D000074018:B-Cell CLL-Lymphoma 10 Protein; C118591:BCL10 protein, human; D015415:Biomarkers; D016328:NF-kappa B