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Kim H. Recent advances in the treatment of pediatric acute leukemia. JOURNAL OF THE KOREAN MEDICAL ASSOCIATION 2016. [DOI: 10.5124/jkma.2016.59.9.690] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Affiliation(s)
- Hyery Kim
- Department of Pediatrics, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
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A Novel Three-Colour Fluorescence in Situ Hybridization Approach for the Detection of t(7;12)(q36;p13) in Acute Myeloid Leukaemia Reveals New Cryptic Three Way Translocation t(7;12;16). Cancers (Basel) 2013; 5:281-95. [PMID: 24216708 PMCID: PMC3730311 DOI: 10.3390/cancers5010281] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2013] [Revised: 02/28/2013] [Accepted: 03/04/2013] [Indexed: 01/31/2023] Open
Abstract
The t(7;12)(q36;p13) translocation is a recurrent chromosome abnormality that involves the ETV6 gene on chromosome 12 and has been identified in 20–30% of infant patients with acute myeloid leukaemia (AML). The detection of t(7;12) rearrangements relies on the use of fluorescence in situ hybridization (FISH) because this translocation is hardly visible by chromosome banding methods. Furthermore, a fusion transcript HLXB9-ETV6 is found in approximately 50% of t(7;12) cases, making the reverse transcription PCR approach not an ideal screening method. Considering the report of few cases of variant translocations harbouring a cryptic t(7;12) rearrangement, we believe that the actual incidence of this abnormality is higher than reported to date. The clinical outcome of t(7;12) patients is believed to be poor, therefore an early and accurate diagnosis is important in the clinical management and treatment. In this study, we have designed and tested a novel three-colour FISH approach that enabled us not only to confirm the presence of the t(7;12) in a number of patients studied previously, but also to identify a cryptic t(7;12) as part of a complex rearrangement. This new approach has proven to be an efficient and reliable method to be used in the diagnostic setting.
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Ahn S, Park JS, Jeong SH, Lee HW, Park JE, Kim MH, Kim YS, Lee HS, Park TS, You E, Rheem I, Park J, Huh JIY, Kang MS, Cho SR. Current routine practice and clinico-pathological characteristics associated with acute promyelocytic leukemia in Korea. Blood Res 2013; 48:31-4. [PMID: 23589792 PMCID: PMC3625006 DOI: 10.5045/br.2013.48.1.31] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2012] [Revised: 11/28/2012] [Accepted: 02/13/2013] [Indexed: 11/22/2022] Open
Abstract
BACKGROUND Acute promyelocytic leukemia (APL) can be life threatening, necessitating emergency therapy with prompt diagnosis by morphologic findings, immunophenotyping, cytogenetic analysis, or molecular studies. This study aimed to assess the current routine practices in APL and the clinico-pathologic features of APL. METHODS We reviewed the medical records of 48 Korean patients (25 men, 23 women; median age, 51 (20-80) years) diagnosed with APL in 5 university hospitals between March 2007 and February 2012. RESULTS The WBC count at diagnosis and platelet count varied from 0.4 to 81.0 (median 2.0)×10(9)/L and 2.7 to 124.0 (median 54.5)×10(9)/L, respectively. The median values for prothrombin time and activated partial thromboplastin time were 14.7 (11.3-44.1) s and 29 (24-62) s, respectively. All but 2 patients (96%) showed a fibrin/fibrinogen degradation product value of >20 µg/mL. The D-dimer median value was 5,000 (686-55,630) ng/mL. The t(15;17)(q22;q12 and PML-RARA fusion was found in all patients by chromosome analysis and/or multiplex reverse transcriptase-polymerase chain reaction (RT-PCR), with turnaround times of 8 (2-19) d and 7 (2-13) d, respectively. All patients received induction chemotherapy: all-trans retinoic acid (ATRA) alone (N=11, 26%), ATRA+idarubicin (N=25, 58%), ATRA+cytarabine (N=3, 7%), ATRA+idarubicin+cytarabine (N=4, 9%). CONCLUSION Since APL is a medical emergency and an accurate diagnosis is a prerequisite for prompt treatment, laboratory support to implement faster diagnostic tools to confirm the presence of PML-RARA is required.
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Affiliation(s)
- Sunhyun Ahn
- Department of Laboratory Medicine, Ajou University School of Medicine, Suwon, Korea
| | - Joon Seong Park
- Department of Hematology-Oncology, Ajou University School of Medicine, Suwon, Korea
| | - Seong Hyun Jeong
- Department of Hematology-Oncology, Ajou University School of Medicine, Suwon, Korea
| | - Hyun Woo Lee
- Department of Hematology-Oncology, Ajou University School of Medicine, Suwon, Korea
| | - Jun Eun Park
- Department of Pediatrics, Ajou University School of Medicine, Suwon, Korea
| | - Mi Hyang Kim
- Department of Laboratory Medicine, Kosin University Gospel Hospital, Busan, Korea
| | - Yang Soo Kim
- Department of Internal Medicine, Kosin University Gospel Hospital, Busan, Korea
| | - Ho Sup Lee
- Department of Internal Medicine, Kosin University Gospel Hospital, Busan, Korea
| | - Tae Sung Park
- Department of Laboratory Medicine, School of Medicine, Kyung Hee University, Seoul, Korea
| | - Eunkyoung You
- Department of Laboratory Medicine, School of Medicine, Kyung Hee University, Seoul, Korea
| | - Insoo Rheem
- Department of Laboratory Medicine, Dankook University College of Medicine, Cheonan, Korea
| | - Joowon Park
- Department of Laboratory Medicine, Dankook University College of Medicine, Cheonan, Korea
| | - JI Young Huh
- Department of Laboratory Medicine, CHA Bundang Medical Center, CHA University, Seongnam, Korea
| | - Myung Seo Kang
- Department of Laboratory Medicine, CHA Bundang Medical Center, CHA University, Seongnam, Korea
| | - Sung Ran Cho
- Department of Laboratory Medicine, Ajou University School of Medicine, Suwon, Korea
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