PMID- 20140876 OWN - NLM STAT- MEDLINE DCOM- 20100521 LR - 20191210 IS - 1003-9406 (Print) IS - 1003-9406 (Linking) VI - 27 IP - 1 DP - 2010 Feb TI - [Chromosome study on chronic lymphocytic leukemia using CpG-oligodeoxynucleotide as immunostimulant agent]. PG - 86-91 LID - 10.3760/cma.j.issn.1003-9406.2010.01.019 [doi] AB - OBJECTIVE: To investigate whether CpG-oligodeoxynucleotide (CpG-ODN) can improve the detection rate of the karyotypic abnormalities in chronic lymphocytic leukemia (CLL). METHODS: The bone marrow (BM) or peripheral blood (PB) cells from 57 cases of CLL were collected and cultured with CpG-ODN DSP30+interleukin-2 (IL-2), phytohemagglutinin (PHA), pokeweed (PWM) or IL-2, respectively. Five days later cells were harvested for chromosome preparation. Karyotypic analysis was done using R banding technique. Panel fluorescence in situ hybridization (FISH) was carried out on 19 cases of CLL with normal karyotypes using the following probes: Cen12, D13S25, Rb1, ATM, p53, MYB and IgH. Genomic DNA from 21 cases of them was extracted from BM or PB leukocytes. The immunoglobulin variable heavy chain (IgVH) was amplified by polymerase chain reaction (PCR) and sequenced. CD38 and ZAP70 expressions in the leukemic cells were determined by flow cytometry (FCM). RESULTS: The detection rate of karyotypic abnormalities in the CpG-ODN+IL-2 group (43.85%) was obviously higher than that in the PHA (15.09%), PWM (17.31%) and IL-2 (3.13%) groups (P<0.01). Fifty-two types of karyotypic abnormalities were found. Among them, trisomy12 (+12) or +12 with other abnormalities were the most common, while translocations were the most frequent structural abnormalities including 3 unbalanced and 11 balanced translocations, among them 7 had rearrangements involving 14q32. Thirteen cases showed one or more abnormalities on FISH including trisomy 12 and p53 deletion each in one case, IgH rearrangement and partial deletion each in one case, 13q14.3 deletion in 11 cases of which 5 cases also had Rb1 deletion, 1 case had Rb1 partial deletion. No case with ATM or MYB deletions was found. PCR detected IgVH mutations in 10/21 cases. FCM showed 10/45 cases were CD38 positive, but 35 /45 were CD38 negative, 11/27 cases expressed ZAP70, but 16/27 did not. Among the 26 cases examined for CD38 and ZAP70 expressions simultaneously, 5 cases were CD38+ZAP70+, 13 were CD38-ZAP70-, 6 were CD38-ZAP70+, and 2 were CD38+ZAP70-, respectively. Statistic analysis showed a correlation between complex karyotype and IgVH without mutation, but no association between karyotype and CD38 or ZAP70 expression was observed. CONCLUSION: CpG-ODN immunostimulation can obviously raise the detection rate of abnormal karyotypes, especially translocations in CLL. FISH is an important complement to conventional karyotypic analysis. The combination of both methods can provide more comprehensive genetic information for CLL. FAU - Wu, Yafang AU - Wu Y AD - The First Affiliated Hospital, Soochow University, Jiangsu Institute of Hematology, Suzhou, Jiangsu, 215006 P.R.China. FAU - Xue, Yongquan AU - Xue Y FAU - Chen, Suning AU - Chen S FAU - Yao, Li AU - Yao L FAU - Jiang, Hui AU - Jiang H FAU - Zhang, Jun AU - Zhang J FAU - Shen, Juan AU - Shen J FAU - Pan, Jinlan AU - Pan J FAU - Wang, Yong AU - Wang Y FAU - Bai, Shuxiao AU - Bai S LA - chi PT - Evaluation Study PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - China TA - Zhonghua Yi Xue Yi Chuan Xue Za Zhi JT - Zhonghua yi xue yi chuan xue za zhi = Zhonghua yixue yichuanxue zazhi = Chinese journal of medical genetics JID - 9425197 RN - 0 (Adjuvants, Immunologic) RN - 0 (CPG-oligonucleotide) RN - 0 (IL2 protein, human) RN - 0 (Immunoglobulin Heavy Chains) RN - 0 (Interleukin-2) RN - 0 (Oligodeoxyribonucleotides) SB - IM MH - Adjuvants, Immunologic/*genetics MH - Adult MH - Aged MH - Aged, 80 and over MH - Bone Marrow Cells/cytology/immunology MH - Cells, Cultured MH - *Chromosome Aberrations MH - Female MH - Humans MH - Immunoglobulin Heavy Chains/genetics MH - In Situ Hybridization, Fluorescence MH - Interleukin-2/genetics MH - Karyotyping/*methods MH - Leukemia, Lymphocytic, Chronic, B-Cell/diagnosis/*genetics/immunology MH - Male MH - Middle Aged MH - Oligodeoxyribonucleotides/*genetics/immunology MH - Phytolacca americana/genetics EDAT- 2010/02/09 06:00 MHDA- 2010/05/22 06:00 CRDT- 2010/02/09 06:00 PHST- 2010/02/09 06:00 [entrez] PHST- 2010/02/09 06:00 [pubmed] PHST- 2010/05/22 06:00 [medline] AID - 940627019 [pii] AID - 10.3760/cma.j.issn.1003-9406.2010.01.019 [doi] PST - ppublish SO - Zhonghua Yi Xue Yi Chuan Xue Za Zhi. 2010 Feb;27(1):86-91. doi: 10.3760/cma.j.issn.1003-9406.2010.01.019.