Biomaterial Database

Variant Philadelphia translocations in chronic myeloid leukemia. 1987

M De Braekeleer

Up to the beginning of 1986, some 327 variant Philadelphia translocations were reported in chronic myeloid leukemia. The present study represents an attempt to determine which factors (sex, age, geographic localization, etc.) influence the occurrence and chromosome involvement of these variant Philadelphia (Ph1) translocations. Clinical data indicated that band 9q34 was always rearranged in the variant Ph1 translocations and no difference existed between the hematologic and prognostic features among patients with the standard and the variant translocations. An uneven geographic distribution of the variant Ph1 translocations was found. Whether this was due to populations with different ethnic backgrounds or to environmental factors could not be determined. Twenty-eight bands were shown to be rearranged more frequently than expected (P less than 0.05); 27 of them are known to contain a fragile site and/or an oncogene and/or are rearranged more frequently than expected in other malignancies. The chromosomes involved in these variant Ph1 translocations were found to show a very particular geographic distribution, which cannot be explained at present.

UI	MeSH Term	Description	Entries
D007564	Japan	A country in eastern Asia, island chain between the North Pacific Ocean and the Sea of Japan, east of the Korean Peninsula. The capital is Tokyo.	Bonin Islands
D007621	Karyotyping	Mapping of the KARYOTYPE of a cell.	Karyotype Analysis Methods,Analysis Method, Karyotype,Analysis Methods, Karyotype,Karyotype Analysis Method,Karyotypings,Method, Karyotype Analysis,Methods, Karyotype Analysis
D007951	Leukemia, Myeloid	Form of leukemia characterized by an uncontrolled proliferation of the myeloid lineage and their precursors (MYELOID PROGENITOR CELLS) in the bone marrow and other sites.	Granulocytic Leukemia,Leukemia, Granulocytic,Leukemia, Myelocytic,Leukemia, Myelogenous,Myelocytic Leukemia,Myelogenous Leukemia,Myeloid Leukemia,Leukemia, Monocytic, Chronic,Monocytic Leukemia, Chronic,Chronic Monocytic Leukemia,Chronic Monocytic Leukemias,Granulocytic Leukemias,Leukemia, Chronic Monocytic,Leukemias, Chronic Monocytic,Leukemias, Granulocytic,Leukemias, Myelocytic,Leukemias, Myelogenous,Leukemias, Myeloid,Monocytic Leukemias, Chronic,Myelocytic Leukemias,Myelogenous Leukemias,Myeloid Leukemias
D008297	Male		Males
D008875	Middle Aged	An adult aged 45 - 64 years.	Middle Age
D010677	Philadelphia Chromosome	An aberrant form of human CHROMOSOME 22 characterized by translocation of the distal end of chromosome 9 from 9q34, to the long arm of chromosome 22 at 22q11. It is present in the bone marrow cells of 80 to 90 per cent of patients with chronic myelocytic leukemia (LEUKEMIA, MYELOGENOUS, CHRONIC, BCR-ABL POSITIVE).	Ph1 Chromosome,Ph 1 Chromosome,1 Chromosomes, Ph,Chromosome, Ph 1,Chromosome, Ph1,Chromosome, Philadelphia,Chromosomes, Ph 1,Chromosomes, Ph1,Ph 1 Chromosomes,Ph1 Chromosomes
D002871	Chromosome Banding	Staining of bands, or chromosome segments, allowing the precise identification of individual chromosomes or parts of chromosomes. Applications include the determination of chromosome rearrangements in malformation syndromes and cancer, the chemistry of chromosome segments, chromosome changes during evolution, and, in conjunction with cell hybridization studies, chromosome mapping.	Banding, Chromosome,Bandings, Chromosome,Chromosome Bandings
D005260	Female		Females
D005602	France	A country in western Europe bordered by the Atlantic Ocean, the English Channel, the Mediterranean Sea, and the countries of Belgium, Germany, Italy, Spain, Switzerland, the principalities of Andorra and Monaco, and by the duchy of Luxembourg. Its capital is Paris.	Corsica,Saint Pierre and Miquelon,Miquelon and Saint Pierre,Miquelon and St. Pierre,St. Pierre and Miquelon
D006113	United Kingdom	Country in northwestern Europe including Great Britain and the northern one-sixth of the island of Ireland, located between the North Sea and north Atlantic Ocean. The capital is London.	Great Britain,Isle of Man