PMID- 9459178 OWN - NLM STAT- MEDLINE DCOM- 19980227 LR - 20190720 IS - 0304-3835 (Print) IS - 0304-3835 (Linking) VI - 121 IP - 1 DP - 1997 Dec 16 TI - Non-random loss of chromosome 3 during transition of Helicobacter pylori-associated gastric MALT to B-cell MALT lymphoma revealed by fluorescence in situ hybridization. PG - 83-90 AB - Acquired gastric mucosa-associated lymphoid tissue (MALT) accumulates as a result of long-standing Helicobacter pylori (H. pylori) infection and from this acquired MALT, low-grade B-cell MALT lymphoma may develop. Carcinogenesis is a multistep, multifactorial process involving the progressive accumulation of genetic changes. To determine whether numerical chromosomal alterations are involved in the transition of H. pylori-associated human gastric MALT to low-grade B-cell MALT lymphoma, frozen biopsy specimens prospectively obtained from H. pylori positive gastric MALT and gastric MALT lymphoma patients, as well as normal control patients (normal gastroscopy/gastric mucosal histology/H. pylori negative), were analyzed by fluorescence in situ hybridization (FISH). Fluorescent, directly labeled alpha-satellite DNA probes, specific for the centromeres of chromosomes 1, 3, 4, 11, 17 and Y were used in this study. The non-random loss of chromosome 3 was detected in two MALT patients and in all five MALT lymphoma patients. Trisomy 17 was detected in one MALT patient and one MALT lymphoma patient. Trisomy 1 was detected in a single MALT lymphoma patient as was trisomy 3. None of the MALT patients had trisomy 3 or trisomy 1. Monosomy 17 was noted in one MALT lymphoma patient. Clonal aneusomy was not observed in any patient for chromosomes Y, 4 or 11. These results suggest that the consistent loss of chromosome 3 may be an important genetic alteration in the transformation of H. pylori-associated gastric MALT into low-grade B-cell gastric MALT lymphoma. FAU - Banerjee, S K AU - Banerjee SK AD - Research Division (151), Midwest Biomedical Research Foundation, V.A. Medical Center, Kansas City, MO 64128-2226, USA. FAU - Weston, A P AU - Weston AP FAU - Persons, D L AU - Persons DL FAU - Campbell, D R AU - Campbell DR LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Research Support, U.S. Gov't, Non-P.H.S. PL - Ireland TA - Cancer Lett JT - Cancer letters JID - 7600053 SB - IM MH - Adult MH - Aged MH - Aged, 80 and over MH - Biopsy MH - Chromosome Aberrations MH - Chromosomes, Human, Pair 1 MH - Chromosomes, Human, Pair 11 MH - Chromosomes, Human, Pair 17 MH - Chromosomes, Human, Pair 3 MH - Chromosomes, Human, Pair 4 MH - Helicobacter Infections/*pathology MH - *Helicobacter pylori MH - Humans MH - In Situ Hybridization, Fluorescence MH - Lymphoma, B-Cell, Marginal Zone/*genetics MH - Male MH - Middle Aged MH - Monosomy MH - Precancerous Conditions/*genetics MH - Stomach/microbiology/pathology MH - Y Chromosome EDAT- 1998/02/12 00:00 MHDA- 1998/02/12 00:01 CRDT- 1998/02/12 00:00 PHST- 1998/02/12 00:00 [pubmed] PHST- 1998/02/12 00:01 [medline] PHST- 1998/02/12 00:00 [entrez] AID - S0304-3835(97)00344-3 [pii] AID - 10.1016/s0304-3835(97)00344-3 [doi] PST - ppublish SO - Cancer Lett. 1997 Dec 16;121(1):83-90. doi: 10.1016/s0304-3835(97)00344-3.