High incidence of t(11;18)(q21;q21) in Helicobacter pylori-negative gastric MALT lymphoma

被引:103
作者
Ye, HT
Liu, HX
Raderer, M
Choft, A
Ruskone-Fourmestraux, A
Wotherspoon, A
Dyer, MJS
Chuang, SS
Dogan, A
Isaacson, PG
Du, MQ
机构
[1] UCL, Dept Histopathol, Royal Free & Univ Coll Med Sch, London WC1E 6JJ, England
[2] Univ Vienna, Dept Internal Med Clin Pathol, A-1010 Vienna, Austria
[3] Hop Hotel Dieu, Serv Gastroenterol, Assistance Publ Hosp Paris, Grp Etude Lymphomes Dignestifs, Paris, France
[4] Royal Marsden Natl Hlth Serv Trust, Dept Histopathol, London, England
[5] Univ Leicester, Dept Haematol, Leicester LE1 7RH, Leics, England
[6] Chi Mei Med Ctr, Dept Pathol, Tainan, Taiwan
关键词
D O I
10.1182/blood-2002-10-3167
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
In approximately 5% to 10% of gastric mucosa-associated lymphoid tissue (MALT) lymphomas, evidence of Helicobacter pylori infection is absent, and their pathogenesis is poorly understood. We reviewed the clinical data and histology, and we examined t(11;18)(q21;q21) and BCL10 expression pattern in 17 such cases. In each case, the absence of H pylori was confirmed by negative serology and histology/immunohistochemistry. Five cases with stage I-E disease were first treated with antibiotics, and none of them showed any endoscopic or histologic response. Review of the histology failed to identify any apparent difference between gastric MALT lymphomas with and without H pylori infection. Reverse transcription-polymerase chain reaction (RT-PCR) showed t(11;18)(q21;q21) in 9 (53%) of 17 cases, more frequent in lymphomas at stage IIE or above (5 of 6) than those at stage IE (3 of 10). Two t(11;18)(q21;q21) positive lymphomas were treated by partial gastrectomy and more than 16 years later showed lymphoma relapse in the gastric stump with dissemination to other mucosal sites, poorly responsive to therapy. BCL10 nuclear expression was observed in 7 of 8t(11;18)(q21;q21)-positive cases and 4 of 7 t(11;18)(q21; q21)-negative cases, including one case suspicious for a BCL10-involved chromosomal translocation. Our results show that t(11;18)(q21;q21) occurs at a high frequency in H pylori-negative gastric MALT lymphomas. Translocation-positive gastric MALT lymphomas tend to be aggressive, and patients with such lymphomas might benefit from prompt treatment and close follow-up.
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页码:2547 / 2550
页数:4
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