PMID- 27264365 OWN - NLM STAT- PubMed-not-MEDLINE DCOM- 20160829 LR - 20160606 IS - 1300-7777 (Print) IS - 1300-7777 (Linking) VI - 28 IP - 3 DP - 2011 Sep 5 TI - Variant Philadelphia translocations with different breakpoints in six chronic myeloid leukemia patients. PG - 186-92 LID - 10.5152/tjh.2011.52 [doi] AB - OBJECTIVE: The Philadelphia (Ph) chromosome, consisting of the t(9;22)(q34;q11) translocation, is observed in ~90% of patients with chronic myeloid leukemia (CML). Variant Ph translocations are observed in 5%-10% of CML patients. In variant translocations 3 and possibly more chromosomes are involved. Herein we report 6 CML patients with variant Ph translocations. METHODS: Bone marrow samples were examined using conventional cytogenetic meth ods. Fluorescence in situ hybridization (FISH) with whole-chromosome paints and BCR-ABL 1D probes were used to confirm and/or complement the findings, and identify rearrangements beyond the resolution of conventional cytogenetic methods. RESULTS: Variant Ph translocations in the 6 patients were as follows: t(7;22)(p22;q11), t(9;22;15)(q34;q11;q22), t(15;22)(p11;q11), t(1;9;22;3)(q24;q34;q11;q21), t(12;22)(p13;q11), and t(4;8;9;22)(q11;q13;q34;q11). CONCLUSION: Among the patients, 3 had simple and 3 had complex variant Ph translocations. Two of the presented cases had variant Ph chromosomes not previously described, 1 of which had a new complex Ph translocation involving chromosomes 1, 3, 9, 22, and t(1;9;22;3)(q24;q34;q11;q21) apart from a clone with a classical Ph, and the other case had variant Ph translocation with chromosomes 4, 8, 9, and 22, and t(4;8;9;22)(q11;q13;q34;q11) full complex translocation. Number of studies reported that some patients with variant Ph translocation were poor responders to imatinib. All of our patients with variant Ph translocations had suboptimal responses to imatinib, denoting a poor prognosis also. Variant Ph translocations may be important as they are associated with prognosis and therapy for CML patients. FAU - Kuru, Dilhan AU - Kuru D AD - Department of Medical Biology, Cerrahpasa Faculty of Medicine, Istanbul University, Istanbul, Turkey Phone: +90 212 414 30 34 E-mail: dilhank@istanbul.edu.tr. FAU - Tarkan Arguden, Yelda AU - Tarkan Arguden Y FAU - Ar, Muhlis Cem AU - Ar MC FAU - Cirakoglu, Ayse AU - Cirakoglu A FAU - Ongoren, Seniz AU - Ongoren S FAU - Yilmaz, Sukriye AU - Yilmaz S FAU - Eskazan, Ahmet Emre AU - Eskazan AE FAU - Deviren, Ayhan AU - Deviren A FAU - Soysal, Teoman AU - Soysal T FAU - Hacihanefioglu, Seniha AU - Hacihanefioglu S FAU - Ulku, Birsen AU - Ulku B LA - eng PT - Journal Article TT - Alti Kronik miyeloid losemi olgusunda farkli kirik noktali varyant Philadelphia translokasyonlari. PL - Turkey TA - Turk J Haematol JT - Turkish journal of haematology : official journal of Turkish Society of Haematology JID - 9606065 EDAT- 2011/09/05 00:00 MHDA- 2011/09/05 00:01 CRDT- 2016/06/07 06:00 PHST- 2016/06/07 06:00 [entrez] PHST- 2011/09/05 00:00 [pubmed] PHST- 2011/09/05 00:01 [medline] AID - 10.5152/tjh.2011.52 [doi] PST - ppublish SO - Turk J Haematol. 2011 Sep 5;28(3):186-92. doi: 10.5152/tjh.2011.52.