國家衛生研究院 NHRI:Item 3990099045/5992
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    Please use this identifier to cite or link to this item: http://ir.nhri.org.tw/handle/3990099045/5992


    Title: Establishment of a novel MALT lymphoma cell line, ma-1, from a patient with t(14;18)(q32;q21)-positive Helicobacter Pylori-independent gastric MALT lymphoma
    Authors: Kuo, SH;Weng, WH;Chen, ZH;Hsu, PN;Wu, MS;Lin, CW;Jeng, HJ;Yeh, KH;Tsai, HJ;Chen, LT;Cheng, AL
    Contributors: National Institute of Cancer Research
    Abstract: Although t(11;18)(q21;q21), t(1;14)(p22;q32), and a few other genetic mutations are specific markers for the Helicobacter pylori (HP)-independent status of gastric mucosa-associated lymphoid tissue (MALT) lymphoma, the molecular mechanisms responsible for HP-independence of gastric MALT lymphoma without such translocations and mutations remain uncharacterized. In the present study, we describe the establishment and characterization of a novel MALT lymphoma cell line, MA-1, which was derived from a gastric MALT lymphoma which was negative for both t(11;18)(q21;q21) and t(1;14)(p22;q32); the patient had failed HP eradication therapy and chemotherapy. The cell morphology and the immunophenotype of this cell line were similar to that of the original gastric MALT lymphoma. Comparative genomic hybridization analysis showed no significant gene copy number changes. Spectral karyotyping displayed a near-diploid chromosome content (48 < 2n>XY), with at least 13 chromosome structural abnormalities. Furthermore, fluorescence in situ hybridization analyses disclosed the existence of three sub-clones, characterized by t(14;18)(q32;q21)/IGH-BCL2, t(14;18)(q32;q21)/IGH-MALT1, and the presence of both chromosomal translocations in the same cell, respectively; whereas amplification of the genes CRAD9, TRAF2, and BCL10 were not found. In conclusion, we have established the first human gastric MALT lymphoma cell line, which is characterized by unusual and complex chromosome translocations and will be useful to explore further the molecular mechanisms of HP-independence in gastric MALT lymphoma.
    Date: 2011-11
    Relation: Genes Chromosomes and Cancer. 2011 Nov;50(11):908-921.
    Link to: http://dx.doi.org/10.1002/gcc.20910
    JIF/Ranking 2023: http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=NHRI&SrcApp=NHRI_IR&KeyISSN=1045-2257&DestApp=IC2JCR
    Cited Times(WOS): https://www.webofscience.com/wos/woscc/full-record/WOS:000295208800006
    Cited Times(Scopus): http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=80052682676
    Appears in Collections:[Li-Tzong Chen] Periodical Articles
    [Hui-Jen Tsai] Periodical Articles

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