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Anguita E, Villegas A, González FA, Díaz-Mediavilla J, Lo Coco F. Acute promyelocytic leukemia relapse in the central nervous system during hematologic and molecular remission. Am J Hematol 1999; 60:170-1. [PMID: 9929118 DOI: 10.1002/(sici)1096-8652(199902)60:2<170::aid-ajh21>3.0.co;2-j] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Carballeira NM, Emiliano A, Hernández-Alonso N, González FA. Facile total synthesis and antimicrobial activity of the marine fatty acids (Z)-2-methoxy-5-hexadecenoic acid and (Z)-2-methoxy-6-hexadecenoic acid. JOURNAL OF NATURAL PRODUCTS 1998; 61:1543-1546. [PMID: 9868161 DOI: 10.1021/np980274o] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
The total synthesis of the naturally occurring (Z)-2-methoxy-5-hexadecenoic acid and (Z)-2-methoxy-6-hexadecenoic acid was accomplished using as a key step Mukaiyama's trimethylsilyl cyanide addition to 4- and 5-pentadecenal, respectively. These syntheses further confirm the structures of the natural marine fatty acids and corroborate their cis double-bond stereochemistry. The title compounds were antimicrobial against the Gram-positive bacteria Staphylococcus aureus (MIC 0.35 micromol/mL) and Streptococcus faecalis (MIC 0.35 micromol/mL).
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Anguita E, Villegas A, Díaz-Mediavilla J, González FA, del Potro E, Espinós D. Detection of bcr/abl mRNA in a case of chronic myelogenous leukemia in long-term remission: CML or sensitivity of detection? Haematologica 1998; 83:744-7. [PMID: 9793259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023] Open
Abstract
Chronic myelogenous leukemia (CML) is a myelo-proliferative disorder which, after a chronic phase which lasts an average of 3 years, evolves into an acute disease which is resistant to chemotherapy. Nevertheless, a few studies have reported cases in which partial or complete hematologic, cytogenetic and/or molecular remission of the disease were observed either spontaneously or after non intensive chemotherapy, with or without medullar aplasia. Some of these patients later relapsed into a blast crisis. We report a case of CML with clinical and hematologic remission for 19 years after two cycles of busulphan not causing medullar aplasia, negative for the BCR/ABL gene by Southern blot but with the gene's mRNA detectable by hot start nested RT-PCR.
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MESH Headings
- Adult
- Biomarkers, Tumor/blood
- Biomarkers, Tumor/genetics
- Blotting, Southern
- Busulfan/therapeutic use
- Female
- Fusion Proteins, bcr-abl/blood
- Fusion Proteins, bcr-abl/genetics
- Humans
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/diagnosis
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/drug therapy
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/pathology
- Neoplasm, Residual
- RNA, Messenger/blood
- RNA, Neoplasm/blood
- Remission Induction
- Reverse Transcriptase Polymerase Chain Reaction
- Sensitivity and Specificity
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Anguita E, Valverde F, González FA, Gil C, Mateo M, Ferro MT, Villegas A. The first report of a Philadelphia chromosome and BCR/ABL rearrangement positive myeloproliferative disorder in a child with thrombocythemia. Leukemia 1998; 12:442-4. [PMID: 9529142 DOI: 10.1038/sj.leu.2400939] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
MESH Headings
- Bone Marrow Cells/pathology
- Child, Preschool
- Female
- Fusion Proteins, bcr-abl/biosynthesis
- Fusion Proteins, bcr-abl/genetics
- Gene Rearrangement
- Humans
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/blood
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/genetics
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/pathology
- Megakaryocytes/pathology
- Myeloproliferative Disorders/complications
- Myeloproliferative Disorders/genetics
- Myeloproliferative Disorders/pathology
- Philadelphia Chromosome
- Platelet Aggregation
- Polymerase Chain Reaction
- Thrombocytosis/complications
- Thrombocytosis/genetics
- Thrombocytosis/pathology
- Transcription, Genetic
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Villegas A, Porres A, Sánchez J, González FA, Pérez-Clausell C, Martínez M, Murga MJ, Cachá J, Lozano M, Fernández-Fuertes I, Del Arco A, Arrizabalaga B, Pérez de Mendiguren B, San Juan I, Saavedra R, Ricart P, Sainz C, Guerra JL, Muñoz JA, Lago C, Ansó VM. Red blood cell phenotypes in alpha-thalassemias in the Spanish population. Haematologica 1998; 83:99-103. [PMID: 9580456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND AND OBJECTIVE alpha-thalassemia is very common on all thalassemic geographical regions. The present work aimed at analyzing the relationship between the degree of microcytosis and hematological parameters and the type of alpha-thalassemic mutation. DESIGN AND METHODS Five hundred and thirty-six subjects with 4 kinds of alpha-thalassemia were examined using established techniques that determined all hematological parameters, and globin synthesis and molecular biological techniques to study the DNA of globin genes by Southern blotting. RESULTS Adult carriers of alpha (+)-thalassemia (-alpha/alpha alpha) present very few hematological alterations. In a statistical comparison with normal individuals (alpha alpha/alpha alpha), significant differences were found between the hemocytometric data and the MCV and MCH of heterozygous alpha + thalassemia and the heterozygous alpha zero or homozygous alpha + genotype. Hb H disease was detected in 15 patients, presenting a severe degree of anemia, a significant increase in RDW and globin chain synthesis with an alpha/beta ratio of 0.5 +/- 0.1. INTERPRETATION AND CONCLUSIONS These data provide reference values for geographical areas where alpha + thalassemia is common. These hematocytometric data, together with hemoglobin analysis, could be useful as a future reference data for new patients diagnosed with alpha-thalassemia.
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Anguita E, González FA, Contra T, Martín N, Valverde F, Villegas A. [Usefulness of molecular screening in childhood lymphoblastic leukemias]. SANGRE 1998; 43:7-11. [PMID: 9577176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
PURPOSE To demonstrate that a molecular screening by reverse transcriptase polymerase chain reaction (RT-PCR) of TEL/AML1, E2A/PBX1 and BCR/ABL genes in pediatric acute lymphoblastic leukaemia is a rapid method that allows one to exceed the percentage of adult patients with the BCR/ABL rearrangement. PATIENTS AND METHODS 12 Spanish children with acute lymphoblastic leukaemia were studied, 11 of them newly diagnosed and 1 relapsed. The patients were between 18 months and 10 years old. Bone marrow aspiration was collected between april and december 1996, RNA was isolated and cDNA was subjected to PCR amplification for TEL/AML1, E2A/PBX1 and BCR/ABL genes. Normal ABL and E2A genes were studied as amplification controls. RESULTS One of these hybrid genes was found in 33.3% of patients studied. TEL/AML1 in two cases (16.6%), E2A/PBX1 in one case (8.3%) and BCR/ABL in another one (8.3%). CONCLUSIONS On the basis of these data it would be useful to achieve a molecular screening of TEL/AML1, E2A/PBX1 and BCR/ABL genes in pediatric acute lymphoblastic leukaemia for allowing a molecular classification in a great percentage of patients that exceed the BCR/ABL positivity in adults.
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Vivas-Mejía PE, Cox O, González FA. Inhibition of human topoisomerase II by anti-neoplastic benzazolo[3,2-alpha]quinolinium chlorides. Mol Cell Biochem 1998; 178:203-12. [PMID: 9546601 DOI: 10.1023/a:1006847615575] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Previously we reported [20] that there is no correlation between the cytotoxic activity of four new structural analogs of the antitumor DNA intercalator 3-nitrobenzothiazolo[3,2-a]quinolinium chloride (NBQ-2) and their interaction with DNA. In the present study, we present evidence suggesting that the molecular basis for the anti-proliferative activity of these drugs is the inhibition of topoisomerase II. The NBQ-2 derivatives inhibited the relaxation of supercoiled DNA plasmid pRYG mediated by purified human topoisomerase II. Inhibition of the decatenation of kinetoplast DNA mediated by partially purified topoisomerase II extracted from the human histiocytic lymphoma U937 (a cell line previously shown to be sensitive to the drugs) was also caused by these drugs. The potency of the benzazolo[3,2-a]quinolinium drugs against topoisomerase II in vitro was the following: 7-(1-propenyl)-3-nitrobenzimidazolo[3,2-a]quinolinium chloride (NBQ-59) > 4-chlorobenzothiazolo[3,2-a]quinolinium chloride (NBQ-76) > 7-ethyl-3-nitrobenzimidazolo[3,2-a]quinolinium chloride (NBQ-48) > 7-benzyl-3-nitrobenzimidazolol[3,2-a]quinolinium chloride (NBQ-38). This rank of potency for topoisomerase II inhibition correlated very well with the cytotoxicity elicited by these drugs. Furthermore, significant levels of topoisomerase II/DNA cleavage complex induced by these drugs in vivo were detected when U937 cells were treated with NBQ-59 and NBQ-76 whereas NBQ-38 and NBQ-48 produced negligible amounts of the cleavage complex. Our results strongly suggest that topoisomerase II is the major cellular target of this family of compounds.
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Villegas A, Anguita E, González FA, Ferro MT, San Román C. Occurrence of BCR-ABL rearrangement in a Philadelphia chromosome-negative patient with 5q and 13q deletions and myeloproliferative syndrome. CANCER GENETICS AND CYTOGENETICS 1998; 100:1-4. [PMID: 9406572 DOI: 10.1016/s0165-4608(97)00003-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
We report the case of a patient with a myeloproliferative syndrome and traits of myelodysplasia and myelofibrosis whose karyotype showed 5q and 13q deletions, as well as Philadelphia chromosome negativity. A molecular biology study performed by Southern blot, with a probe covering the M-bcr region, led to detection of three bands other than the germinal ones, which hints at the possible existence of two cut points in the M-bcr region of an allele, or participation of both alleles. The patient presented a complex hematological picture, which might be explained on the basis of the cytogenetic and molecular findings.
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34
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Anguita E, González FA, López J, Villegas A. TEL/AML1 transcript and p16 gene deletion in a patient with childhood acute lymphoblastic leukaemia. Br J Haematol 1997; 99:240-1. [PMID: 9359534] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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35
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Villegas A, Muñoz JA, Risueño CF, Castro JM, Sánchez J, Ropero P, González FA. [Association of alpha and beta thalassemia with alpha gene triplication in one family]. Med Clin (Barc) 1997; 108:781-3. [PMID: 9265084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
UNLABELLED We describe the haematological data and molecular results of a native family from Cádiz in that one is produced the a within heterozygous beta 0 thalassaemia (IVS-1, nt 1-G-->A), heterozygous alpha+ thalassaemia (-alpha 3.7) and alpha gene triplication (alpha alpha alpha 3.7). PATIENTS AND METHODS) We are studied 7 members to a family composed by father (I1), mother (I2) and five children (II1, II2, II3, II4, II5). The molecular biology study of the alpha gene was realized by Southern blot method using the restriction enzymes Bam HI, Bgl II and Eco RI and hybridized with alpha probe of the plasmid PRB 1 (fragment of 1.5 Kb digested with the enzyme Pst I). The genes were studied by the technique of the polymerase chain reaction (PCR), modified according to designated method "Amplification Refractory Mutation System" (ARMS). RESULTS The father (I1) presents an interaction of therozygous beta 0 thalassaemia with heterozygous alpha + thalassaemia (beta 0/beta 1;alpha alpha/-alpha 3). The mother (I2) shows an alpha gene triplication (beta A/beta A: alpha alpha alpha 3.7/alpha alpha). Finally the children are expressed 5 possibilities: II4 he is normal (beta A/beta A; alpha alpha/alpha alpha), II2 he has alpha gene triplication (beta A/beta A; alpha alpha/alpha alpha alpha 3.7), II3 he has heterozygous beta 0 thalassaemia (beta 0/beta A; alpha alpha/alpha alpha), II5 he has interaction between heterozygous beta 0 thalassaemia and heterozygous alpha gene triplication (beta 0/beta A; alpha alpha alpha 3.7/alpha alpha) and II1 presents an interaction between a heterozygous beta 0 thalassaemia and together with the lost of one alpha gene in one chromosome he also presents a alpha gene triplication in other one (beta o/beta A; alpha alpha/alpha alpha). The hematological data of II5 corresponds to a intermediate thalassemia with not transfusion dependent feature an opposite to II1 that presents a heterozygous thalassemic trait features with 4 alpha genes. DISCUSSION The phenotypical expression of the different interactions of these mutations in this family, points out, the relevant role that the unbalance globins chains plays in the pathogenesis and development of the clinical manifestations of the patients with the thalassaemia syndromes.
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Carballeira NM, Reyes ED, Sostre A, Rodríguez AD, Rodríguez JL, González FA. Identification of the novel antimicrobial fatty acid (5Z,9Z)-14-methyl-5,9-pentadecadienoic acid in Eunicea succinea. JOURNAL OF NATURAL PRODUCTS 1997; 60:502-504. [PMID: 9170293 DOI: 10.1021/np970034t] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
The phospholipid fatty acid composition of Eunicea succinea was investigated, and the novel (5Z,9Z)-14-methyl-5,9-pentadecadienoic acid was identified. Structural characterization was accomplished by means of mass spectrometry of its pyrrolidide derivative, NMR, FT1R, and total synthesis. Other interesting phospholipid fatty acids in E. succinea were the tetracosapolyenoic acids 6,9,12,15,18,21-tetracosahexaenoic acid (24:6) and 6,9,12,15,18-tetracosapentaenoic acids (24:5). The title compound was particularly active against Gram-positive bacteria such as Staphylococcus aureus (MIC 0.24 mumol/mL) and Streptococcus faecalis (MIC 0.16 mumol/ mL).
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37
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Villegas A, Sánchez J, Armada B, González FA. Nondeletional alpha-thalassemia in a Spanish population. Am J Hematol 1997; 54:342-3. [PMID: 9092699] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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38
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Ropero P, González FA, Sánchez J, Armada B, Martí E, Valdés B, Mora A, Villegas A. [The association of beta zero-thalassemia and Hb D Punjab in a family of Indian origin. The second case reported in Spain]. Med Clin (Barc) 1997; 108:385-8. [PMID: 9139146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
The present report described the hematologic and molecular study of the second case of Hb D-Punjab associated with a beta zero-thalassemia found in Spain and the first case in which the mutations have been identified at molecular level. A family from India is studied, which is constituted by mother (I2) and 3 children (II1, II2 and II3). The molecular characterization of the hemoglobinopathy was made by electrophoretic and chromatographic techniques and confirmed by sequencing of the beta-globin gene. The mutation causer of the beta-thalassemia was studied by PCR-ARMS. The mother (I2) and one of her child (II2) are carriers of the gene for beta zero-thalassemia owing to the frameshift CD 8/9 mutation (+ G). Other of them (II1) is heterozygous for Hb D-Punjab without beta-thalassemia association. The third child (II3) knows a double heterozygote state for Hb D-Punjab/beta zero-thalassemia (hemoglobin D-thalassemia). In spite of the patient with hemoglobin D-thalassemia has 94.5% of Hb D, without Hb A, the hematologic picture belongs to thalassemia trait with moderate haemolytic anemia, intense microcytosis and hypochromia and numerous target cells. This hematologic picture discloses the mildness of the Hb D-Punjab, but the reliable responsible for the phenotype is the disbalance in the synthesis of globin chains, because of frameshift CD 8/9 mutation (+ G) beta zero-thalassemia mutation.
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Villegas A, Martín G, González FA, Sanchez J. Frameshift CD 11 (-T) beta-thalassemia mutation. Am J Hematol 1997; 54:265-6. [PMID: 9067512] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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40
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Villegas A, González FA, Armada B, Llorente L. Cytological and cytochemical study of the peripheral blood mononuclear cells in leukapheresis products mobilized with rhG-CSF. Bone Marrow Transplant 1996; 18:1199. [PMID: 8971397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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Villegas A, Ropero P, González FA, Armada B, Martí E, Carreño MD, Sánchez J. Molecular heterogeneity of beta-thalassaemia in a Spanish population from the area centre of Spain. Eur J Haematol 1996; 57:389-91. [PMID: 9003481 DOI: 10.1111/j.1600-0609.1996.tb01398.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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González FA, Sanchéz J, Llorente L, Villegas A. Changes in reticulocyte fractions during peripheral stem cell harvesting exclusively mobilized with rhG-CSF. Bone Marrow Transplant 1996; 18:673. [PMID: 8879641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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González FA, Villegas A, Armada B, García C, Pérez J, Anguita E. Bcl-2 gene rearrangement: diagnostic implications in a case of a large cell diffuse lymphoma appearing in leukemic phase. Am J Hematol 1995; 50:69-70. [PMID: 7668236 DOI: 10.1002/ajh.2830500124] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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Villegas A, Sánchez J, Carreño DL, Ropero P, González FA, Espinós D, Peñalver MA, Lozano M. Molecular characterization of a new family with alpha-thalassemia-1 (--MA mutation). Am J Hematol 1995; 49:294-8. [PMID: 7639274 DOI: 10.1002/ajh.2830490407] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
A Spanish family with alpha-thalassemia-1 (alpha-Thal-1), deletion (--MA), is described. In addition to the loss of 22 kb of DNA with a deletion of the alpha 1, alpha 2, psi alpha 2, and psi zeta 1 genes, a triplication of the zeta gene cluster in "cis" is produced. The structure of this triplication is formed by the psi zeta 1 gene, the interzeta region, and, possibly, the insertion of the psi alpha 2 fragment.
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Ropero P, Sánchez J, González FA, Armada B, Benito A, Caldeira A, Martín G, Villegas A. [Molecular heterogeneity of beta thalassemia]. SANGRE 1994; 39:365-368. [PMID: 7754441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
PURPOSE To check out the incidence of beta-thalassaemia in different regions of Spain and to demonstrate its heterogeneity. PATIENTS AND METHODS The study was performed on 60 peripheral blood samples from patients diagnosed of beta-thalassaemia by conventional methods, namely, microcytosis, HbA2 over 3.5%, increased HbF. DNA was isolated with phenol-chloroform and amplified by ARMS technique, and in one case its sequence was established according to Sanger's method. RESULTS The mutations found in the 67 alleles studied showed similar incidence, although NT1 (IVS 1) mutation was increased and NT110 (IVS 1) mutation was decreased when compared with the findings in other Mediterranean populations. CONCLUSION Due to historical reasons, the racial characteristics of Spanish people are the product of different ethnic groups, so hereditary disorders are here usually heterogeneous. This study appears to confirm such fact with respect to beta-thalassaemia.
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Villegas A, González FA, López M, Armada B, Jordá J, Alarcón C. Lymphoid blastic transformation in chronic myeloid leukemia. Am J Hematol 1994; 46:58-9. [PMID: 8043098 DOI: 10.1002/ajh.2830460113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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Villegas A, González FA. Rearrangement of the BCR/ABL and TCR-beta genes in lymph node blast crisis diagnosed of chronic myeloid leukemia. Am J Hematol 1994; 45:347. [PMID: 8178807 DOI: 10.1002/ajh.2830450415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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49
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Villegas A, González L, Furio V, González FA, Sánchez J, Armada B, Ropero P, Valverde F. Congenital dyserythropoietic anemia type III with unbalanced globin chain synthesis. Eur J Haematol 1994; 52:251-3. [PMID: 8005239 DOI: 10.1111/j.1600-0609.1994.tb00657.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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50
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González FA, Villegas A, Ferro MT, San Román C, Sáez I, López M, del Potro E, Alvarez A, Martínez R, Díaz Madiavilla J. [The usefulness of the bcr/abl rearrangement in the diagnosis and evolution of chronic myeloid leukemia]. Med Clin (Barc) 1993; 101:521-4. [PMID: 8231395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
BACKGROUND The rearrangement of the bcr/abl gene constitutes the molecular substrate of the Philadelphia chromosome (Ph'). The aim of this study was to analyze the usefulness of bcr/abl rearrangement in the diagnosis and evolution of chronic myeloid leukemia (CML). METHODS The rearrangement of the bcr/abl gene was studied in 81 cases of which 34 corresponded to patients with CML (29 Ph' positive chromosome, 2 Ph' negative chromosome and 3 without karyotype), 2 patients with Ph' positive acute lymphoblastic leukemia, 15 patients with chronic myeloproliferative syndromes different from CML and 30 controls. Of the patients with CML, 6 were reevaluated when a blastic crisis was developed, 2 after receiving interferon treatment and 1 following allogeneic bone marrow transplantation. The technique used was that of Southern blotting using the restriction enzymes Bgl II and BamHI and the transprobe. RESULTS Rearrangement of the bcr/abl gene was observed in all the patients with CML except in one with Ph' negative chromosome. In the remaining cases bcr/abl rearrangement was not observed. CONCLUSIONS The Southern blotting technique for the study of the bcr/abl gene rearrangement is a sensitive and specific method in the diagnosis of chronic myeloid leukemia constituting a valid alternative to chromosomic study when this cannot be carried out or is not conclusive. It may also be used for the control of treatment in chronic myeloid leukemia.
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MESH Headings
- Adult
- Aged
- Aged, 80 and over
- Blast Crisis/diagnosis
- Blast Crisis/genetics
- Blotting, Southern
- Child
- DNA, Neoplasm/analysis
- Female
- Gene Rearrangement
- Genes, abl/genetics
- Humans
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/diagnosis
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/genetics
- Leukemia, Myeloid, Chronic, Atypical, BCR-ABL Negative/diagnosis
- Leukemia, Myeloid, Chronic, Atypical, BCR-ABL Negative/genetics
- Male
- Middle Aged
- Sensitivity and Specificity
- alpha-Thalassemia/diagnosis
- alpha-Thalassemia/genetics
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