1
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Kasai F, Asou H, Ozawa M, Kobayashi K, Kuramitsu H, Satoh M, Kohara A, Kaneko Y, Kawamura M. Kasumi leukemia cell lines: characterization of tumor genomes with ethnic origin and scales of genomic alterations. Hum Cell 2020; 33:868-876. [PMID: 32180206 PMCID: PMC7324421 DOI: 10.1007/s13577-020-00347-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2020] [Accepted: 03/05/2020] [Indexed: 01/08/2023]
Abstract
Kasumi-1 has played an important role in an experimental model with t(8;21) translocation, which is a representative example of leukemia cell lines. However, previous studies using Kasumi-1 show discrepancies in the genome profile. The wide use of leukemia cell lines is limited to lines that are well-characterized. The use of additional cell lines extends research to various types of leukemia, and to further explore leukemia pathogenesis, which can be achieved by uncovering the fundamental features of each cell line with accurate data. In this study, ten Kasumi cell lines established in Japan, including five that were previously unknown, have been characterized by SNP microarray and targeted sequencing. SNP genotyping suggested that the genetic ancestry in four of the ten Kasumi cell lines was not classified as Japanese but covered several different east-Asian ethnicities, suggesting that patients in Japan are genetically diverse. TP53 mutations were detected in two cell lines with complex array profiles, indicating chromosomal instability (CIN). A quantitative assessment of tumor genomes at the chromosomal level was newly introduced to reveal total DNA sizes and Scales of Genomic Alterations (SGA) for each cell line. Kasumi-1 and 6 derived from relapsed phases demonstrated high levels of SGA, implying that the level of SGA would reflect on the tumor progression and could serve as an index of CIN. Our results extend the leukemia cellular resources with an additional five cell lines and provide reference genome data with ethnic identities for the ten Kasumi cell lines.
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Affiliation(s)
- Fumio Kasai
- Japanese Collection of Research Bioresources (JCRB) Cell Bank, National Institutes of Biomedical Innovation, Health and Nutrition, Saito-Asagi 7-6-8, Ibaraki, Osaka, 567-0085, Japan.
| | - Hiroya Asou
- Medicine Development Unit, Eli Lilly, Kobe, 651-0086, Japan
| | - Midori Ozawa
- Japanese Collection of Research Bioresources (JCRB) Cell Bank, National Institutes of Biomedical Innovation, Health and Nutrition, Saito-Asagi 7-6-8, Ibaraki, Osaka, 567-0085, Japan
| | - Kazuhiko Kobayashi
- Department of Clinical Laboratory, Saitama Cancer Center, Saitama, 362-0806, Japan
| | - Hiroyuki Kuramitsu
- Department of Clinical Laboratory, Saitama Cancer Center, Saitama, 362-0806, Japan
| | - Motonobu Satoh
- Japanese Collection of Research Bioresources (JCRB) Cell Bank, National Institutes of Biomedical Innovation, Health and Nutrition, Saito-Asagi 7-6-8, Ibaraki, Osaka, 567-0085, Japan
| | - Arihiro Kohara
- Japanese Collection of Research Bioresources (JCRB) Cell Bank, National Institutes of Biomedical Innovation, Health and Nutrition, Saito-Asagi 7-6-8, Ibaraki, Osaka, 567-0085, Japan
| | - Yasuhiko Kaneko
- Research Institute for Clinical Oncology, Saitama Cancer Center, Saitama, 362-0806, Japan.,Department of Hematology, Saitama Cancer Center, Saitama, 362-0806, Japan
| | - Machiko Kawamura
- Department of Clinical Laboratory, Saitama Cancer Center, Saitama, 362-0806, Japan.,Department of Hematology, Saitama Cancer Center, Saitama, 362-0806, Japan
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2
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Cepeda S, Forero-Castro M, Cárdenas-Nieto D, Martínez-Agüero M, Rondón-Lagos M. Chromosomal Instability in Farmers Exposed to Pesticides: High Prevalence of Clonal and Non-Clonal Chromosomal Alterations. Risk Manag Healthc Policy 2020; 13:97-110. [PMID: 32104116 PMCID: PMC7024798 DOI: 10.2147/rmhp.s230953] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Accepted: 12/18/2019] [Indexed: 12/11/2022] Open
Abstract
Introduction An important economic activity in Colombia is agricultural production and farmers are frequently exposed to pesticides. Occupational exposure to pesticides is associated with an increased incidence of various diseases, including cancer, Parkinson’s disease, Alzheimer’s disease, reproductive disorders, and birth defects. However, although high genotoxicity is associated with these chemicals, information about the type and frequency of specific chromosomal alterations (CAs) and the level of chromosomal instability (CIN) induced by exposure to pesticides is scarce or absent. Methods In this study, CAs and CIN were assessed in peripheral blood lymphocytes (PBLs) from five farmers occupationally exposed to pesticides and from five unexposed individuals using GTG-banding and molecular cytogenetic analysis. Results A significant increase in clonal and non-clonal chromosomal alterations was observed in pesticide-exposed individuals compared with unexposed individuals (510±12,2 vs 73±5,7, respectively; p<0.008). Among all CAs, monosomies and deletions were more frequently observed in the exposed group. Also, a high frequency of fragilities was observed in the exposed group. Conclusion Together, these findings suggest that exposure to pesticides could be associated with CIN in PBLs and indicate the need for the establishment of educational programs on safety precautions when handling pesticides, such as wearing gloves, masks and boots, changing clothes and maintaining proper hygiene, among others. Further evaluation in other similar studies that include a greater number of individuals exposed to pesticides is necessary.
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Affiliation(s)
- Sebastian Cepeda
- School of Biological Sciences, Universidad Pedagógica y Tecnológica de Colombia, Tunja 150003, Colombia
| | - Maribel Forero-Castro
- School of Biological Sciences, Universidad Pedagógica y Tecnológica de Colombia, Tunja 150003, Colombia
| | - Diana Cárdenas-Nieto
- School of Biological Sciences, Universidad Pedagógica y Tecnológica de Colombia, Tunja 150003, Colombia
| | - María Martínez-Agüero
- Biology Program, Faculty of Natural Sciences and Mathematics, Universidad del Rosario, Bogotá 111221, Colombia
| | - Milena Rondón-Lagos
- School of Biological Sciences, Universidad Pedagógica y Tecnológica de Colombia, Tunja 150003, Colombia
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3
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Zhang L, Lan Q, Guo W, Hubbard AE, Li G, Rappaport SM, McHale CM, Shen M, Ji Z, Vermeulen R, Yin S, Rothman N, Smith MT. Chromosome-wide aneuploidy study (CWAS) in workers exposed to an established leukemogen, benzene. Carcinogenesis 2011; 32:605-12. [PMID: 21216845 DOI: 10.1093/carcin/bgq286] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Evidence suggests that de novo, therapy-related and benzene-induced acute myeloid leukemias (AML) occur via similar cytogenetic and genetic pathways, several of which involve aneuploidy, the loss or gain of chromosomes. Aneuploidy of specific chromosomes has been detected in benzene-related leukemia patients as well as in healthy benzene-exposed workers, suggesting that aneuploidy precedes and may be a potential mechanism underlying benzene-induced leukemia. Here, we analyzed the peripheral blood lymphocytes of 47 exposed workers and 27 unexposed controls using a novel OctoChrome fluorescence in situ hybridization (FISH) technique that simultaneously detects aneuploidy in all 24 chromosomes. Through this chromosome-wide aneuploidy study (CWAS) approach, we found heterogeneity in the monosomy and trisomy rates of the 22 autosomes when plotted against continuous benzene exposure. In addition, statistically significant, chromosome-specific increases in the rates of monosomy [5, 6, 7, 10, 16 and 19] and trisomy [5, 6, 7, 8, 10, 14, 16, 21 and 22] were found to be dose dependently associated with benzene exposure. Furthermore, significantly higher rates of monosomy and trisomy were observed in a priori defined 'susceptible' chromosome sets compared with all other chromosomes. Together, these findings confirm that benzene exposure is associated with specific chromosomal aneuploidies in hematopoietic cells, which suggests that such aneuploidies may play roles in benzene-induced leukemogenesis.
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Affiliation(s)
- Luoping Zhang
- Division of Environmental Health Sciences, School of Public Health, University of California, Berkeley, CA 94720, USA.
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4
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Karyotypically independent clones with del(11q) and trisomy 10 in acute myeloid leukemia: trisomy 10 may appear as an additional change. Int J Hematol 2008; 88:123-124. [PMID: 18566741 DOI: 10.1007/s12185-008-0109-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2008] [Revised: 04/10/2008] [Accepted: 05/19/2008] [Indexed: 10/21/2022]
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5
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Wong KF, So CC. Acute myeloid leukemia with concomitant trisomies 4 and 10: a distinctive form of myeloid leukemia? CANCER GENETICS AND CYTOGENETICS 2001; 127:74-6. [PMID: 11408070 DOI: 10.1016/s0165-4608(00)00418-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The occurrence of trisomy 4 or trisomy 10 as the sole chromosomal abnormality in acute myeloid leukemia (AML) is very rare, the reported frequency being less than 1%. We describe two cases of AML-M2 with concomitant trisomy 4 and trisomy 10, a hitherto undescribed phenomenon. They showed two unusual features, including immunoreactivity for CD56 and a short-lived but rapidly progressive myelodysplastic phase preceding the appearance of frank leukemia. These findings raise the possibility that AML with concommitant trisomy 4 and trisomy 10 may constitute a distinctive subtype of AML.
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Affiliation(s)
- K F Wong
- Department of Pathology, Queen Elizabeth Hospital, 30 Gascoigne Road, Kowloon, Hong Kong SAR, China.
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6
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Inaba T, Shimazaki C, Sumikuma T, Ochiai N, Okano A, Hatsuse M, Ashihara E, Kobayashi Y, Rin K, Murakami S, Haruyama H, Fujita N, Nakagawa M. Clinicopathological features of myeloid/natural killer (NK) cell precursor acute leukemia. Leuk Res 2001; 25:109-13. [PMID: 11166825 DOI: 10.1016/s0145-2126(00)00099-0] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Four patients (three males and one female) were diagnosed as myeloid/natural killer (NK) cell precursor acute leukemia in our department. Two patients showed the extramedullary involvement at initial presentation. Leukemic cells expressed CD7, CD33, CD45 and CD56 in all patients. Additionally, CD13, CD34, HLA-DR, cytoplasmic CD3 and myeloperoxidase were expressed in some patients. Trisomy 10 was found in two patients, which has not been reported in this disease. Therefore, myeloid/NK cell precursor acute leukemia might be rather heterogeneous especially in chromosomal abnormality though it seemed to constitute the distinct clinical entity among acute myeloid leukemia of M0 subtype.
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Affiliation(s)
- T Inaba
- Department of Clinical Laboratory and Medicine, Kyoto Prefectural University of Medicine, Kawaramachi-hirokoji, Kamigyo-ku, Kyoto 602-8566, Japan.
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7
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Inoue T, Fujiyama Y, Kitamura S, Andoh A, Hodohara K, Bamba T. Trisomy 10 as the sole abnormality in biphenotypic leukemia. Leuk Lymphoma 2000; 39:405-9. [PMID: 11342322 DOI: 10.3109/10428190009065841] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
We observed a case of acute biphenotypic leukemia with trisomy 10 as the sole abnormality. The patient was an adult male diagnosed with ALL(L2), Cell marker studies showed positivity for CD3, CD7, CD13 and CD33, so the phenotypic diagnosis was determined to be biphenotypic leukemia. No case of biphenotypic leukemia with trisomy 10 has been previously reported, until now.
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Affiliation(s)
- T Inoue
- Department of Internal Medicine, Shiga University of Medical Science, Seta Tukinowa, Otsu 520-2192, Japan.
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8
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Suzuki A, Kimura Y, Ohyashiki K, Kitano K, Kageyama S, Kasai M, Miyawaki S, Ohno R. Trisomy 10 in acute myeloid leukemia. Three additional cases from the database of the Japan Adult Leukemia Study Group (JALSG) AML-92 and AML-95. CANCER GENETICS AND CYTOGENETICS 2000; 120:141-3. [PMID: 10942805 DOI: 10.1016/s0165-4608(99)00258-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
To clarify the clinical and hematologic features of a rare numerical chromosome abnormality, we searched for trisomy 10 in acute myelogenous leukemias (AMLs) using the database of the Japan Adult Leukemia Study Group (JALSG) AML 92 and 95. Among the sequentially registered patients of JALSG-AML 92 (655 patients) and JALSG-AML 95 (531 patients), chromosome results were obtained in 1,074 patients (90.6%), and we found 3 patients with trisomy 10 as a sole abnormality. The first patient had an AML-M1 morphology with CD7 antigen; the patient obtained complete remission (CR) with the first course of chemotherapy. The second patient had an AML-M1 morphology without expressing CD7 antigen; this patient obtained CR, but relapsed 3 months later, and underwent allogeneic bone marrow transplantation. He suffered from chronic graft-versus-host disease and expired 38 months after the AML diagnosis. The third patient had AML-M0 with CD7 positivity. He obtained CR; however, brain abscess and cerebral hemorrhage occurred. In the literature, the mean age of patients with trisomy 10 AML is 57.8 years, the gender ratio is M/F = 1.5, and the frequency of M0/M1/M2 is 85.7%. A high incidence (81. 8%) of CD7 expression of leukemia cells is notable. About 73% of patients survived for greater than 12 months.
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MESH Headings
- Adult
- Aged
- Aged, 80 and over
- Antigens, CD7/analysis
- Chromosomes, Human, Pair 10/genetics
- Databases as Topic/statistics & numerical data
- Fatal Outcome
- Female
- Humans
- Japan/epidemiology
- Karyotyping
- Leukemia, Myeloid, Acute/epidemiology
- Leukemia, Myeloid, Acute/genetics
- Leukemia, Myeloid, Acute/pathology
- Male
- Middle Aged
- Trisomy
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Affiliation(s)
- A Suzuki
- First Department of Internal Medicine, Tokyo Medical University, Tokyo, Japan
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9
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Llewellyn IE, Morris CM, Stanworth S, Heaton DC, Spearing RL. Trisomy 10 in acute myeloid leukemia: three new cases. CANCER GENETICS AND CYTOGENETICS 2000; 118:148-50. [PMID: 10748296 DOI: 10.1016/s0165-4608(99)00134-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Trisomy 10 is a rare nonrandom cytogenetic abnormality found in association with acute myeloid leukemia (AML). The hematological and clinical features associated with this finding have not yet been clearly defined. A literature review revealed 13 cases of trisomy 10 in AML, some reported as a minority component of a more comprehensive AML study and therefore lacking a full description of both clinical and hematological features. We present a summary of these reports and add three new cases to the literature.
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Affiliation(s)
- I E Llewellyn
- Canterbury Health Laboratories, Christchurch, New Zealand
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10
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Wang J, Mes-Masson AM, Tonin PN, Provencher D, Eydoux P. Trisomy of chromosome 10 in two cases of ovarian carcinoma. CANCER GENETICS AND CYTOGENETICS 2000; 118:65-8. [PMID: 10731594 DOI: 10.1016/s0165-4608(99)00170-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Simple numerical chromosome aberrations have been observed in tumorigenesis and may point to indicative initiating or early events in tumorigenesis. We have identified two cases of ovarian carcinomas with trisomy of chromosome 10 using conventional GTG-banding and fluorescence in situ hybridization. This is, to our knowledge, the first report of trisomy 10 as a simple karyotypic abnormality observed in ovarian carcinoma. These results suggest that further studies investigating whether chromosome 10 genes are associated with the pathogenesis of some ovarian tumors are warranted.
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Affiliation(s)
- J Wang
- Cytogenetics Laboratory, the Montreal Children's Hospital, Departments of Human Genetics and Pathology, McGill University, Montréal, Québec, Canada
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11
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Sakai Y, Nakayama H, Matsuzaki A, Nagatoshi Y, Suminoe A, Honda K, Inamitsu T, Ohga S, Hara T. Trisomy 10 in a child with acute nonlymphocytic leukemia followed by relapse with a different clone. CANCER GENETICS AND CYTOGENETICS 1999; 115:47-51. [PMID: 10565299 DOI: 10.1016/s0165-4608(99)00087-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
We report a 2-year-old Japanese boy with acute nonlymphocytic leukemia (ANLL) having trisomy 10 as the sole chromosomal abnormality. The majority of the marrow blasts had lobulated nuclei and Auer rods in their cytoplasm. The blasts were positive for peroxidase, CD13, CD15, and CD33, but negative for esterase, CD3, CD7, CD34, and HLA-DR, indicating a diagnosis of ANLL, atypical M2 in French-American-British (FAB) classification. He was treated with combination chemotherapy, including anthracyclines, etoposide, and cytosine arabinoside. Four months after achieving the first remission, the disease relapsed during the consolidation therapy, and he died 9 months later. Trisomy 10 was not detected at relapse, and blasts showed phenotypes different from those at initial diagnosis. The present case suggests that the prognosis of acute leukemia with trisomy 10 in the pediatric age group may not be good, and that further studies are required to clarify the association of trisomy 10 with leukemogenesis and disease progression.
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Affiliation(s)
- Y Sakai
- Department of Pediatrics, Faculty of Medicine, Kyushu University, Fukuoka, Japan
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12
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Okamura A, Yamaguchi A, Shimizu S, Kadowaki S, Chihara K, Matsui T, Fujimoto T, Kanki K, Fujio K. Trisomy 10 in adult pre-B-cell leukemia. Am J Hematol 1999; 61:83. [PMID: 10331517 DOI: 10.1002/(sici)1096-8652(199905)61:1<83::aid-ajh15>3.0.co;2-s] [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: 11/09/2022]
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13
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Pedersen B, Andersen CL, Søgaard MM, Nørgaard JM, Koch J, Krejci K, Brandsborg M, Clausen N. Trisomy 10 survival: a literature review and presentation of seven new cases. CANCER GENETICS AND CYTOGENETICS 1998; 103:130-2. [PMID: 9614911 DOI: 10.1016/s0165-4608(97)00387-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Trisomy 10 as the only chromosome aberration is a rare phenomenon in malignant and premalignant hemopoietic disorders. We describe 7 new cases and have found another 12 in the literature. It appears that, whereas adult patients have myeloid disorders (acute myeloid leukemia, myeloproliferative, or myelodysplastic syndromes), in children the diagnosis is lymphocytic leukemia or lymphoma. The median survival was 122 months in the total material. Age above 60 years proved to be a significant adverse factor (median survival only 5 months; p = 0.003). None of the other clinical, cytogenetic, or hematological variables were of demonstrable prognostic importance. In contrast with the larger trisomy 10 clones, those of limited size were associated with nonleukemic diagnoses, normal or slightly elevated leukocyte counts, and few or no circulating blasts. This may suggest that expansion of the trisomy 10 clone is associated with clinical and hematological progression.
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Affiliation(s)
- B Pedersen
- Department of Cytogenetics, Danish Cancer Society, Aarhus, Denmark
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14
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Abstract
Previous studies had raised questions about whether the relatively rare finding of trisomy 10 in leukemia is nonrandomly associated with a specific immunophenotype or ethnic origin. To shed light on the above questions and to obtain additional clinical and pathologic information on this unique class of leukemic patients, we conducted a retrospective study of leukemia cases at our laboratory from July 1, 1990, to July 31, 1996. The results not only support the rarity of trisomy 10, but they also reject the hypotheses that all trisomy 10 cases are CD7-positive, or found in Orientals.
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Affiliation(s)
- O Estalilla
- Department of Pathology, Rhode Island Hospital, Providence 02903, USA
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15
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Luño E, Payer AR, Luengo JR, Del Castillo TB, Garcia VP. Trisomy 10 in acute myeloid leukemia: report of a new case. CANCER GENETICS AND CYTOGENETICS 1998; 100:84-7. [PMID: 9406587 DOI: 10.1016/s0165-4608(97)00009-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
We report a case of acute myeloid leukemia (AML) with trisomy 10 as the sole abnormality. We have observed this case among 202 de novo and untreated AML examined cytogenetically in our laboratory during the last 10 years. The patient was an adult man diagnosed with AML-M2. An interesting morphologic finding was the presence in light microscopy and ultrastructural studies of prominent giant "Chediak-Higashi-like" granules in some of the leukemic cells. Cell marker studies showed positivity for CD7 and CD33, as seen in the six previously reported cases. The prognosis has been moderate-good, with a survival of 33 months. Trisomy 10 in AML appears to be a rare recurring numeric chromosomal abnormality and probably linked to a myeloblast subset with a CD33+ and CD7+ phenotype.
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Affiliation(s)
- E Luño
- Department of Hematology, Hospital Central de Asturias, Oviedo, Spain
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16
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Morgan R, Chen Z, Stone JF, Cohen J, Gustafson E, Jolly PC, Sandberg AA. Trisomy 10: age and leukemic lineage associations. CANCER GENETICS AND CYTOGENETICS 1996; 89:173-4. [PMID: 8697428 DOI: 10.1016/0165-4608(96)00075-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
We observed three cases of acute leukemia with trisomy 10 (+10) as the sole abnormality, two were adult patients with ANLL (subtype M0 and M1 respectively), and the third that of a child with ALL. The literature describes nine additional cases, four with ALL (all of whom were children) and five with ANLL (all of whom were adults). Cell marker studies on the ANLL cases showed a common positivity for CD7 and CD33 in our two cases, as well as in four of the previously reported cases, whereas in ALL the only two informative cases were classified as early pre-B ALL. There appears to be an age-related pattern in the specificity of the leukemic lineage. Trisomy 10 appears to be associated exclusively with ALL in children and with ANLL (usually M0-M1) in adults. The prognosis appears to be also divided between the two groups, being good in the pediatric group and moderate in the adult group.
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Affiliation(s)
- R Morgan
- SBRI and Genetrix, Inc., Scottsdale, Arizona 85251, USA
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