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Seong D, Choi YH, Shin SY, Yi BK. Deep learning approach to detection of colonoscopic information from unstructured reports. BMC Med Inform Decis Mak 2023; 23:28. [PMID: 36750932 PMCID: PMC9903463 DOI: 10.1186/s12911-023-02121-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2022] [Accepted: 01/23/2023] [Indexed: 02/09/2023] Open
Abstract
BACKGROUND Colorectal cancer is a leading cause of cancer deaths. Several screening tests, such as colonoscopy, can be used to find polyps or colorectal cancer. Colonoscopy reports are often written in unstructured narrative text. The information embedded in the reports can be used for various purposes, including colorectal cancer risk prediction, follow-up recommendation, and quality measurement. However, the availability and accessibility of unstructured text data are still insufficient despite the large amounts of accumulated data. We aimed to develop and apply deep learning-based natural language processing (NLP) methods to detect colonoscopic information. METHODS This study applied several deep learning-based NLP models to colonoscopy reports. Approximately 280,668 colonoscopy reports were extracted from the clinical data warehouse of Samsung Medical Center. For 5,000 reports, procedural information and colonoscopic findings were manually annotated with 17 labels. We compared the long short-term memory (LSTM) and BioBERT model to select the one with the best performance for colonoscopy reports, which was the bidirectional LSTM with conditional random fields. Then, we applied pre-trained word embedding using large unlabeled data (280,668 reports) to the selected model. RESULTS The NLP model with pre-trained word embedding performed better for most labels than the model with one-hot encoding. The F1 scores for colonoscopic findings were: 0.9564 for lesions, 0.9722 for locations, 0.9809 for shapes, 0.9720 for colors, 0.9862 for sizes, and 0.9717 for numbers. CONCLUSIONS This study applied deep learning-based clinical NLP models to extract meaningful information from colonoscopy reports. The method in this study achieved promising results that demonstrate it can be applied to various practical purposes.
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Affiliation(s)
- Donghyeong Seong
- grid.264381.a0000 0001 2181 989XSamsung Advanced Institute for Health Sciences and Technology (SAIHST), Sungkyunkwan University, Seoul, 06355 Republic of Korea
| | - Yoon Ho Choi
- grid.264381.a0000 0001 2181 989XDepartment of Digital Health, SAIHST, Sungkyunkwan University, Seoul, 06355 Republic of Korea
| | - Soo-Yong Shin
- grid.264381.a0000 0001 2181 989XDepartment of Digital Health, SAIHST, Sungkyunkwan University, Seoul, 06355 Republic of Korea ,grid.414964.a0000 0001 0640 5613Research Institute for Future Medicine, Samsung Medical Center, Seoul, 06351 Republic of Korea
| | - Byoung-Kee Yi
- Department of Artificial Intelligence Convergence, Kangwon National University, 1 Kangwondaehak-Gil, Chuncheon-si, Gangwon-do, 24341, Republic of Korea.
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Jung S, Bae S, Seong D, Oh OH, Kim Y, Yi BK. Shared Interoperable Clinical Decision Support Service for Drug-Allergy Interaction Check: Implementation Study (Preprint). JMIR Med Inform 2022; 10:e40338. [DOI: 10.2196/40338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 09/16/2022] [Accepted: 10/22/2022] [Indexed: 11/06/2022] Open
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Jung S, Bae S, Seong D, Yi BK. Standard Document Development for Health Information Exchange in Korea. Appl Clin Inform 2022; 13:592-601. [PMID: 35732191 PMCID: PMC9217181 DOI: 10.1055/s-0042-1749331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Health information exchange (HIE) allows healthcare providers to access a patient's medical information to improve patient care continuity. The standardized data realize the HIE values. Since the Health Level 7 Clinical Document Architecture (CDA) is flexible, implementation guides (IG) are needed for use cases. Although many CDA IGs have been developed, they did not describe how these CDA IGs were developed. A national CDA IG that meets the local requirements is demanded since the data differs according to the digital divide and social-cultural background of the country that wants to establish HIE. Due to their localized contents, other countries cannot directly adopt the published CDA IGs. OBJECTIVES We developed the national CDA IG, namely, Korean (K)-CDA IG that meets the local requirement, including reusable structured templates, value sets, and object identifiers (OIDs). We present a detailed description of the development process and the technical methods of the national CDA IG in the Korean context. METHODS The K-CDA IG was developed in the following stages: analysis, development, and evaluation. First, we investigated the health information environment and electronic health record (EHR) systems and conducted a gap analysis with published CDA IGs. Second, a templated CDA approach was taken for designing modular. Lastly, we consulted a technical advisory group for comments on the validity of the K-CDA IG. RESULTS A total of 35 CDA templates were developed. We improved 28 value sets of which 13 were Korea specific and 15 were based on the ones used in other IGs, and made a set of rules to establish the OID structure. CONCLUSION We presented the development process and the technical specifications of K-CDA IG. We explored how the results can be used as interoperability criteria in the national EHR systems certification program. Finally, we provided recommendations that could guide other entities planning their HIE programs.
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Affiliation(s)
- Sungwon Jung
- Department of Health Sciences and Technology, Samsung Advanced Institute for Health Sciences and Technology, Sungkyunkwan University, Seoul, Republic of Korea
| | - Sungchul Bae
- Data Science Research Institute, Samsung Medical Center, Seoul, Republic of Korea
| | - Donghyeong Seong
- Department of Health Sciences and Technology, Samsung Advanced Institute for Health Sciences and Technology, Sungkyunkwan University, Seoul, Republic of Korea,Data Science Research Institute, Samsung Medical Center, Seoul, Republic of Korea
| | - Byoung-Kee Yi
- Data Science Research Institute, Samsung Medical Center, Seoul, Republic of Korea,Department of Digital Health, Samsung Advanced Institute for Health Sciences and Technology, Sungkyunkwan University, Seoul, Republic of Korea,Address for correspondence Byoung-Kee Yi, PhD Data Science Research Institute, Samsung Medical Center81, Irwon-ro, Gangnam-gu, Seoul 06351Republic of Korea
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Seong D, Jung S, Bae S, Chung J, Son DS, Yi BK. Fast Healthcare Interoperability Resources (FHIR)-Based Quality Information Exchange for Clinical Next-Generation Sequencing Genomic Testing: Implementation Study. J Med Internet Res 2021; 23:e26261. [PMID: 33908889 PMCID: PMC8116992 DOI: 10.2196/26261] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Revised: 01/10/2021] [Accepted: 04/03/2021] [Indexed: 01/23/2023] Open
Abstract
Background Next-generation sequencing (NGS) technology has been rapidly adopted in clinical practice, with the scope extended to early diagnosis, disease classification, and treatment planning. As the number of requests for NGS genomic testing increases, substantial efforts have been made to deliver the testing results clearly and unambiguously. For the legitimacy of clinical NGS genomic testing, quality information from the process of producing genomic data should be included within the results. However, most reports provide insufficient quality information to confirm the reliability of genomic testing owing to the complexity of the NGS process. Objective The goal of this study was to develop a Fast Healthcare Interoperability Resources (FHIR)–based web app, NGS Quality Reporting (NGS-QR), to report and manage the quality of the information obtained from clinical NGS genomic tests. Methods We defined data elements for the exchange of quality information from clinical NGS genomic tests, and profiled a FHIR genomic resource to enable information exchange in a standardized format. We then developed the FHIR-based web app and FHIR server to exchange quality information, along with statistical analysis tools implemented with the R Shiny server. Results Approximately 1000 experimental data entries collected from the targeted sequencing pipeline CancerSCAN designed by Samsung Medical Center were used to validate implementation of the NGS-QR app using real-world data. The user can share the quality information of NGS genomic testing and verify the quality status of individual samples in the overall distribution. Conclusions This study successfully demonstrated how quality information of clinical NGS genomic testing can be exchanged in a standardized format. As the demand for NGS genomic testing in clinical settings increases and genomic data accumulate, quality information can be used as reference material to improve the quality of testing. This app could also motivate laboratories to perform diagnostic tests to provide high-quality genomic data.
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Affiliation(s)
- Donghyeong Seong
- Department of Health Sciences and Technology, Samsung Advanced Institute for Health Sciences & Technology, Sungkyunkwan University, Seoul, Republic of Korea
| | - Sungwon Jung
- Department of Health Sciences and Technology, Samsung Advanced Institute for Health Sciences & Technology, Sungkyunkwan University, Seoul, Republic of Korea
| | - Sungchul Bae
- Smart Healthcare Research Institute, Samsung Medical Center, Seoul, Republic of Korea
| | - Jongsuk Chung
- Samsung Genome Institute, Samsung Medical Center, Seoul, Republic of Korea
| | - Dae-Soon Son
- School of Big Data Science, Data Science Convergence Research Center, Hallym University, Chuncheon, Republic of Korea
| | - Byoung-Kee Yi
- Smart Healthcare Research Institute, Samsung Medical Center, Seoul, Republic of Korea.,Department of Digital Health, Samsung Advanced Institute for Health Sciences & Technology, Sungkyunkwan University, Seoul, Republic of Korea
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Lee KH, Kim JS, Hong SH, Seong D, Choi YR, Ahn YT, Kim KS, Kim SE, Lee S, Sim W, Kim D, Jun B, Yang JW, Yon DK, Lee SW, Kim MS, Dragioti E, Li H, Jacob L, Koyanagi A, Abou Ghayda R, Shin JI, Smith L. Risk factors of COVID-19 mortality: a systematic review of current literature and lessons from recent retracted articles. Eur Rev Med Pharmacol Sci 2020; 24:13089-13097. [PMID: 33378062 DOI: 10.26355/eurrev_202012_24216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE Recently, two influential articles that reported the association of (hydroxy)chloroquine or angiotensin converting enzyme (ACE) inhibitors and coronavirus disease 2019 (COVID-19) mortality were retracted due to significant methodological issues. Therefore, we aimed to analyze the same clinical issues through an improved research method and to find out the differences from the retracted papers. We systematically reviewed pre-existing literature, and compared the results with those of the retracted papers to gain a novel insight. MATERIALS AND METHODS We extracted common risk factors identified in two retracted papers, and conducted relevant publication search until June 26, 2020 in PubMed. Then, we analyzed the risk factors for COVID-19 mortality and compared them to those of the retracted papers. RESULTS Our systematic review demonstrated that most demographic and clinical risk factors for COVID-19 mortality were similar to those of the retracted papers. However, while the retracted paper indicated that both (hydroxy)chloroquine monotherapy and combination therapy with macrolide were associated with higher risk of mortality, our study showed that only combination therapy of hydroxychloroquine and macrolide was associated with higher risk of mortality (odds ratio 2.33; 95% confidence interval 1.63-3.34). In addition, our study demonstrated that use of ACE inhibitors or angiotensin receptor blockers (ARBs) was associated with reduced risk of mortality (0.77; 0.65-0.91). CONCLUSIONS When analyzing the same clinical issues with the two retracted papers through a systematic review of randomized controlled trials and relevant cohort studies, we found out that (hydroxy)chloroquine monotherapy was not associated with higher risk of mortality, and that the use of ACE inhibitors or ARBs was associated with reduced risk of mortality in COVID-19 patients.
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Affiliation(s)
- K H Lee
- Department of Pediatrics, Yonsei University College of Medicine, Seoul, Republic of Korea.
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Seong D, Chung J, Lee KW, Kim SY, Kim BS, Song JK, Jung S, Lee T, Park D, Yi BK, Park WY, Son DS. Benchmark Database for Process Optimization and Quality Control of Clinical Cancer Panel Sequencing. BIOTECHNOL BIOPROC E 2019. [DOI: 10.1007/s12257-019-0202-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Sinn DH, Kang D, Chang Y, Ryu S, Gu S, Kim H, Seong D, Cho SJ, Yi BK, Park HD, Paik SW, Song YB, Lazo M, Lima JAC, Guallar E, Cho J, Gwak GY. Non-alcoholic fatty liver disease and progression of coronary artery calcium score: a retrospective cohort study. Gut 2017; 66:323-329. [PMID: 27599521 DOI: 10.1136/gutjnl-2016-311854] [Citation(s) in RCA: 110] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2016] [Revised: 08/11/2016] [Accepted: 08/16/2016] [Indexed: 12/12/2022]
Abstract
BACKGROUND AND AIM Non-alcoholic fatty liver disease (NAFLD), a hepatic manifestation of the metabolic syndrome, was associated with subclinical atherosclerosis in many cross-sectional studies, but the prospective association between NAFLD and the progression of atherosclerosis has not been evaluated. This study was conducted to evaluate the association between NAFLD and the progression of coronary atherosclerosis. METHODS This retrospective cohort study included 4731 adult men and women with no history of cardiovascular disease (CVD), liver disease or cancer at baseline who participated in a repeated regular health screening examination between 2004 and 2013. Fatty liver was diagnosed by ultrasound based on standard criteria, including parenchymal brightness, liver-to-kidney contrast, deep beam attenuation and bright vessel walls. Progression of coronary artery calcium (CAC) scores was measured using multidetector CT scanners. RESULTS The average duration of follow-up was 3.9 years. During follow-up, the annual rate of CAC progression in participants with and without NAFLD were 22% (95% CI 20% to 23%) and 17% (16% to 18%), respectively (p<0.001). The multivariable ratio of progression rates comparing participants with NAFLD with those without NAFLD was 1.04 (1.02 to 1.05; p<0.001). The association between NAFLD and CAC progression was similar in most subgroups analysed, including in participants with CAC 0 and in those with CAC >0 at baseline. CONCLUSIONS In this large cohort study of adult men and women with no history of CVD, NAFLD was significantly associated with the development of CAC independent of cardiovascular and metabolic risk factors. NAFLD may play a pathophysiological role in atherosclerosis development and may be useful to identify subjects with a higher risk of subclinical disease progression.
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Affiliation(s)
- Dong Hyun Sinn
- Department of Medicine, Samsung Medical Center, Sungkyunkwan University, Seoul, South Korea
| | - Danbee Kang
- Department of Health Science and Technology, SAIHST, Sungkyunkwan University, Seoul, South Korea
| | - Yoosoo Chang
- Center for Cohort Studies, Total Healthcare Screening Center, Kangbuk Samsung Hospital, Sungkyunkwan University, Seoul, South Korea.,Department of Occupational and Environmental Medicine, Kangbuk Samsung Hospital, Sungkyunkwan University, Seoul, South Korea.,Department of Clinical Research Design and Evaluation, SAIHST, Sungkyunkwan University, Seoul, South Korea
| | - Seungho Ryu
- Center for Cohort Studies, Total Healthcare Screening Center, Kangbuk Samsung Hospital, Sungkyunkwan University, Seoul, South Korea.,Department of Occupational and Environmental Medicine, Kangbuk Samsung Hospital, Sungkyunkwan University, Seoul, South Korea.,Department of Clinical Research Design and Evaluation, SAIHST, Sungkyunkwan University, Seoul, South Korea
| | - Seonhye Gu
- Biostatistics and Clinical Epidemiology Center, Samsung Medical Center, Sungkyunkwan University, Seoul, South Korea
| | - Hyunkyoung Kim
- Biostatistics and Clinical Epidemiology Center, Samsung Medical Center, Sungkyunkwan University, Seoul, South Korea
| | - Donghyeong Seong
- Department of Health Science and Technology, SAIHST, Sungkyunkwan University, Seoul, South Korea
| | - Soo Jin Cho
- Center for Health Promotion, Samsung Medical Center, Sungkyunkwan University, Seoul, South Korea
| | - Byoung-Kee Yi
- Department of Health Science and Technology, SAIHST, Sungkyunkwan University, Seoul, South Korea.,Department of Medical Informatics, Samsung Medical Center, Sungkyunkwan University, Seoul, South Korea
| | - Hyung-Doo Park
- Department of Laboratory Medicine and Genetics, Samsung Medical Center, Sungkyunkwan University, Seoul, South Korea
| | - Seung Woon Paik
- Department of Medicine, Samsung Medical Center, Sungkyunkwan University, Seoul, South Korea
| | - Young Bin Song
- Department of Medicine, Samsung Medical Center, Sungkyunkwan University, Seoul, South Korea.,Departments of Epidemiology and Medicine and Welch Center for Prevention, Epidemiology and Clinical Research, Johns Hopkins Medical Institutions, Baltimore, USA
| | - Mariana Lazo
- Departments of Epidemiology and Medicine and Welch Center for Prevention, Epidemiology and Clinical Research, Johns Hopkins Medical Institutions, Baltimore, USA
| | - Joao A C Lima
- Departments of Epidemiology and Medicine and Welch Center for Prevention, Epidemiology and Clinical Research, Johns Hopkins Medical Institutions, Baltimore, USA
| | - Eliseo Guallar
- Departments of Epidemiology and Medicine and Welch Center for Prevention, Epidemiology and Clinical Research, Johns Hopkins Medical Institutions, Baltimore, USA
| | - Juhee Cho
- Department of Health Science and Technology, SAIHST, Sungkyunkwan University, Seoul, South Korea.,Center for Cohort Studies, Total Healthcare Screening Center, Kangbuk Samsung Hospital, Sungkyunkwan University, Seoul, South Korea.,Department of Clinical Research Design and Evaluation, SAIHST, Sungkyunkwan University, Seoul, South Korea.,Departments of Epidemiology and Medicine and Welch Center for Prevention, Epidemiology and Clinical Research, Johns Hopkins Medical Institutions, Baltimore, USA
| | - Geum-Youn Gwak
- Department of Medicine, Samsung Medical Center, Sungkyunkwan University, Seoul, South Korea
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Sinn DH, Cho SJ, Gu S, Seong D, Kang D, Kim H, Yi BK, Paik SW, Guallar E, Cho J, Gwak GY. Persistent Nonalcoholic Fatty Liver Disease Increases Risk for Carotid Atherosclerosis. Gastroenterology 2016; 151:481-488.e1. [PMID: 27283259 DOI: 10.1053/j.gastro.2016.06.001] [Citation(s) in RCA: 81] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/21/2015] [Revised: 05/26/2016] [Accepted: 06/01/2016] [Indexed: 02/06/2023]
Abstract
BACKGROUND & AIMS Nonalcoholic fatty liver disease (NAFLD) has been associated with subclinical atherosclerosis in cross-sectional studies. We investigated the longitudinal association of NAFLD with the development of subclinical carotid atherosclerosis. METHODS We performed a retrospective cohort study of 8020 adult men (average age, 49.2 y) without carotid atherosclerosis at baseline who underwent repeated health check-up examinations from January 1, 2005, through December 31, 2013. NAFLD status was diagnosed by ultrasonography and classified into 4 groups based on baseline and follow-up findings: none, developed, regressed, or persistent NAFLD. Subclinical carotid atherosclerosis was measured by ultrasound. RESULTS The age-adjusted hazard ratio for subclinical carotid atherosclerosis development comparing participants with persistent NAFLD with those without NAFLD was 1.23 (95% confidence interval [CI], 1.13-1.35; P < .001). The association persisted after adjustment for smoking, alcohol, body mass index, and weight change (hazard ratio, 1.13; 95% CI, 1.03-1.25; P = .014), but disappeared after adjustment for metabolic variables. The hazard ratio, comparing subjects with regression of NAFLD vs those with persistent NAFLD, was 0.82 (95% CI, 0.69-0.96; P = .013). The risk of subclinical carotid atherosclerosis development also was higher among participants with a high NAFLD fibrosis score, fibrosis-4 scores, or levels of γ-glutamyl transferase at baseline. CONCLUSIONS In a large cohort study, persistent NAFLD was associated with an increased risk of subclinical carotid atherosclerosis development. This association was explained by metabolic factors that could be potential mediators of the effect of NAFLD. Markers of liver fibrosis also were associated with subclinical carotid atherosclerosis development. Prospective studies are needed to determine whether treatment of NAFLD can reduce this risk.
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Affiliation(s)
- Dong Hyun Sinn
- Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Soo Jin Cho
- Center for Health Promotion, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Seonhye Gu
- Center for Clinical Epidemiology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Donghyeong Seong
- Department of Health Science and Technology, Samsung Advanced Institute for Health Science and Technology, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Danbee Kang
- Center for Clinical Epidemiology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea; Department of Health Science and Technology, Samsung Advanced Institute for Health Science and Technology, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Hyunkyoung Kim
- Department of Otorhinolaryngology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Byoung-Kee Yi
- Department of Health Science and Technology, Samsung Advanced Institute for Health Science and Technology, Sungkyunkwan University School of Medicine, Seoul, Korea; Department of Medical Informatics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Seung Woon Paik
- Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Eliseo Guallar
- Center for Clinical Epidemiology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea; Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland; Department of Clinical Research Design and Evaluation, Samsung Advanced Institute for Health Science and Technology, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Juhee Cho
- Center for Clinical Epidemiology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea; Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland; Department of Clinical Research Design and Evaluation, Samsung Advanced Institute for Health Science and Technology, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Geum-Youn Gwak
- Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.
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Jeong M, Lee EW, Seong D, Seo J, Kim JH, Grootjans S, Kim SY, Vandenabeele P, Song J. USP8 suppresses death receptor-mediated apoptosis by enhancing FLIP L stability. Oncogene 2016; 36:458-470. [PMID: 27321185 DOI: 10.1038/onc.2016.215] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2015] [Revised: 04/08/2016] [Accepted: 05/11/2016] [Indexed: 11/09/2022]
Abstract
FLICE-like inhibitory protein (FLIP) is a critical regulator of death receptor-mediated apoptosis. Here, we found ubiquitin-specific peptidase 8 (USP8) to be a novel deubiquitylase of the long isoform of FLIP (FLIPL). USP8 directly deubiquitylates and stabilizes FLIPL, but not the short isoform. USP8 depletion induces FLIPL destabilization, promoting anti-Fas-, tumor necrosis factor-related apoptosis-inducing ligand (TRAIL)- and tumor necrosis factor alpha-induced extrinsic apoptosis by facilitating death-inducing signaling complex or TNFR1 complex II formation, which results in the activation of caspase-8 and caspase-3. USP8 mRNA levels are elevated in melanoma and cervical cancers, and the protein levels of USP8 and FLIPL are positively correlated in these cancer cell lines. Xenograft analyses using ME-180 cervical cancer cells showed that USP8 depletion attenuated tumor growth upon TRAIL injection. Taken together, our data indicate that USP8 functions as a novel deubiquitylase of FLIPL and inhibits extrinsic apoptosis by stabilizing FLIPL.
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Affiliation(s)
- M Jeong
- Department of Biochemistry, College of Life Science and Biotechnology, Yonsei University, Seoul, Korea
| | - E-W Lee
- Department of Biochemistry, College of Life Science and Biotechnology, Yonsei University, Seoul, Korea
| | - D Seong
- Department of Biochemistry, College of Life Science and Biotechnology, Yonsei University, Seoul, Korea
| | - J Seo
- Department of Biochemistry, College of Life Science and Biotechnology, Yonsei University, Seoul, Korea
| | - J-H Kim
- Department of Biochemistry, College of Life Science and Biotechnology, Yonsei University, Seoul, Korea
| | - S Grootjans
- Inflammation Research Center, VIB, Zwijnaarde-Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Zwijnaarde-Ghent, Belgium
| | - S-Y Kim
- Cancer Cell and Molecular Biology Branch, Division of Cancer Biology, Research Institute, National Cancer Center, Goyang, Korea
| | - P Vandenabeele
- Inflammation Research Center, VIB, Zwijnaarde-Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Zwijnaarde-Ghent, Belgium
| | - J Song
- Department of Biochemistry, College of Life Science and Biotechnology, Yonsei University, Seoul, Korea
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Sinn DH, Cho SJ, Gwak GY, Cho J, Gu S, Seong D, Kang D, Kim H, Yi BK, Paik SW. Nonalcoholic Fatty Liver Disease for Identification of Preclinical Carotid Atherosclerosis. Medicine (Baltimore) 2016; 95:e2578. [PMID: 26817915 PMCID: PMC4998289 DOI: 10.1097/md.0000000000002578] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
Nonalcoholic fatty liver disease (NAFLD) is associated with cardiovascular disease, yet whether identification of NAFLD in asymptomatic individuals is helpful over established risk factors remains unknown. A total of 37,799 asymptomatic adults aged 20 years or older who underwent comprehensive health check-up examination, including abdominal and carotid artery duplex ultrasonography (US) were included in the analysis. Nonalcoholic fatty liver disease was diagnosed with US and exclusion of secondary causes of fat accumulation or other causes of chronic liver disease, and graded as mild or moderate to severe fatty liver. Individuals with carotid plaque identified on carotid artery US were considered at risk for cardiovascular disease. Metabolic syndrome (MetS) was defined by the adult treatment panel III criteria. Nonalcoholic fatty liver disease was an independent factor associated with carotid plaque in a dose-dependent manner (odds ratio [OR]; 95% confidence interval [CI]: 1.09 [1.03-1.16] and 1.13 [1.06-1.21] for mild and ≥ moderate degree of NAFLD). Among clinically-relevant subgroups, NAFLD was more closely associated with carotid plaque in young adults (aged < 60 years) without MetS (OR [95% CI]: 1.13 [1.03-1.19] and 1.16 [1.06-1.27] for mild and ≥ moderate degree of NAFLD) than old adults (aged ≥ 60 years) or with MetS (OR [95% CI]: 1.06 [0.97-1.17] and 1.07 [0.97-1.19] for mild and ≥ moderate degree NAFLD). In young adults without MetS, the prevalence of carotid plaques was 32.8% and the sensitivity and specificity of NAFLD for carotid plaque was 0.38 and 0.67, respectively. In conclusion, NAFLD is associated with carotid plaque independent of traditional risk factors, especially in young adults without MetS. Nonalcoholic fatty liver disease could help identify additional individuals with preclinical atherosclerosis in asymptomatic young adults without MetS, yet, showed suboptimal performance as a screening tool.
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Affiliation(s)
- Dong Hyun Sinn
- From the Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine (DHS, G-YG, SWP); Center for Health Promotion, Samsung Medical Center (SJC); Department of Health Science and Technology, Samsung Advanced Institute for Health Science and Technology, Sungkyunkwan University (JC, DS, DK, B-KY); Department of Health, Behavior and Society and Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, USA (JC); Biostatistics and Clinical Epidemiology Center, Samsung Medical Center (SG); Department of Otorhinolaryngology (HK); and Department of Medical Informatics, Samsung Medical Center, Seoul, South Korea (B-KY)
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Cho I, Yoo C, Oh C, Kim S, Km Y, Kim H, Seong D, Chung H, Hong S, Cho J. UP-01.171 Age and Gender, Independent Prognostic Factors of Renal Cell Carcinomas: A Multicenter Study. Urology 2011. [DOI: 10.1016/j.urology.2011.07.722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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Hong S, Cho K, Lee Y, Kim D, Kim D, Kim S, Kim S, Kim Y, Kim C, Kim H, Seong D, Song Y, Yang W, Lee D, Lee J, Cheon S, Chung B, Cho S, Cho I, Cho J. MP-5.17: Prognostic Stratification of Nephrectomized Patients in Renal Cell Carcinoma with Bone Metastasis. Urology 2008. [DOI: 10.1016/j.urology.2008.08.282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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14
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15
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Seong D, Kantarjian HM, Albitar M, Arlinghaus R, Xu J, Talpaz M, Rios MB, Guo JQ, O'Brien S, Siciliano M. Analysis of Philadelphia chromosome-negative BCR-ABL-positive chronic myelogenous leukemia by hypermetaphase fluorescence in situ hybridization. Ann Oncol 1999; 10:955-9. [PMID: 10509158 DOI: 10.1023/a:1008349405763] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND In 5%-10% of patients with of chronic myelogenous leukemia (CML), the Philadelphia chromosome (Ph) is not identified, despite the presence of the associated BCR-ABL molecular abnormality (Ph-negative, BCR-ABL-positive CML) because of sub-microscopic rearrangements. PATIENTS AND METHODS Six patients with Ph-negative, BCR-ABL-positive CML were investigated. The Ph chromosome detection via fluorescence in situ hybridization after 24-hour mitotic arrest of bone marrow cultures resulting in several hundreds of metaphases (hypermetaphase FISH or HMF) was useful in explaining the nature of the six cases. RESULTS Four patients had a low frequency of Ph-positive cells by HMF (5.7%, 4.8%, 3.9%, 0.2%), i.e., a typical Ph translocation. However, two cases involved a 9q34 inserted into chromosome 22q11 (74.2% and 92%), without a deletion from chromosome 22 and reciprocal translocation onto 9, i.e., not a typical Ph translocation. The pattern of UBCR gene rearrangement was characterized by the same genomic recombination of 5-BCR and c-ABL, both in the four cases of typical translocation (9;22) and in the two cases of insertion of 9q34 into chromosome 22q11. CONCLUSIONS The HMF identified two different bases for Ph-negative, BCR-ABL-positive cells in CML-presence of low frequency of cells with typical Ph translocations or presence of cells with ABL insertions into the BCR gene on chromosome 22.
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MESH Headings
- Adult
- Blotting, Southern
- Bone Marrow Cells
- Diagnosis, Differential
- Female
- Fusion Proteins, bcr-abl/analysis
- Humans
- In Situ Hybridization, Fluorescence
- 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
- Philadelphia Chromosome
- Sensitivity and Specificity
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Affiliation(s)
- D Seong
- Department of Leukemia, University of Texas, M.D. Anderson Cancer Center, Houston, USA
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16
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Seong D, Thall P, Kantarjian HM, Talpaz M, Swantkowski J, Xu J, Shen Y, Glassman A, Ramagli L, Siciliano MJ. Philadelphia chromosome-positive myeloid cells in the peripheral blood of chronic myelogenous leukemia patients: comparison with the frequency detected in cycling cells of the bone marrow. Clin Cancer Res 1998; 4:861-7. [PMID: 9563879] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Monitoring the frequency of the Philadelphia (Ph) chromosome in chronic myelogenous leukemia (CML) is important in determining the effectiveness of treatment for patients during therapy. This can be done with high resolution by subjecting short-term bone marrow cultures (48 h) to 24 h of mitotic arrest before harvest and detecting Ph-positive (Ph+) metaphases by fluorescence in situ hybridization (FISH) in a procedure termed hypermetaphase FISH or HMF. Here, we compared procedures for detecting Ph+ interphase cells (interphase FISH or I-FISH) in peripheral blood polymorphonucleocytes (PMNs) with HMF results on the bone marrow of the same 26 CML patients in different stages of remission. The probes for I-FISH in these experiments were relatively large (200-300 kb) and sufficiently resolved in PMNs so that 97.5% of the cells were scorable. The correlation between the frequencies of Ph+ cells from the two different cell sources was excellent (r = 0.983, P < 0.0001); however, there was a consistently higher level of Ph+ cells observed in the cycling marrow cells than in the peripheral blood PMNs. This was discussed in terms of current theories of apoptosis in CML cells. The large number of PMNs analyzable by I-FISH (approximately 500/patient in this study) provided sufficiently narrow 99% confidence intervals to suggest the procedure as an effective and efficient method for monitoring the frequency of Ph+ cells in CML patients undergoing therapy. However, for detection and quantification of minimal residual disease, HMF is preferable to I-FISH because of the much lower frequency of false-positive readings with the former procedure.
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Affiliation(s)
- D Seong
- Department of Hematology, University of Texas M.D. Anderson Cancer Center, Houston 77030, USA
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17
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van Besien K, Thall P, Korbling M, Pugh WC, Khouri I, Mehra R, Giralt S, Anderlini P, Amin K, Mirza N, Seong D, Gajewski J, Hester J, Andersson B, Cabanillas F, Champlin R, Przepiorka D. Allogeneic transplantation for recurrent or refractory non-Hodgkin's lymphoma with poor prognostic features after conditioning with thiotepa, busulfan, and cyclophosphamide: experience in 44 consecutive patients. Biol Blood Marrow Transplant 1997; 3:150-6. [PMID: 9310192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
We report the outcomes of 44 consecutive patients with non-Hodgkin's lymphoma (NHL) who participated in prospective studies of allogeneic transplantation after conditioning with thiotepa, busulfan and cyclophosphamide. Within a range of 27-57 years, the median age was 37. Of the 44 patients, 12 (27.2%) had high-grade lymphomas, 27 (61.4%) had intermediate-grade lymphomas, and five (11.3%) had low-grade lymphomas. Twenty-eight (63.6%) patients had chemotherapy refractory disease. Thirty (68.2%) patients had stage IV disease at the time of transplantation, involving the bone marrow in 19 (43.2%). Eight (18.1%) patients had undergone previous transplantation, and 13 (29.5%) patients had received high-dose CVP as induction within 2 months prior to transplantation. Thirty-eight (86.3%) patients had an HLA-identical donor, and 6 (13.6%) had a one-antigen mismatched related donor. Twenty (45.4%) patients received bone marrow and 24 (54.6%) received granulocyte colony-stimulating factor (G-CSF) mobilized stem cells. The graft-versus-host disease (GVHD) prophylaxis contained cyclosporine or tacrolimus in combination with either methylprednisolone in 32 (72.7%) patients or with methotrexate in 12 (27.2%) patients. The actuarial probability of disease-free survival at 2 years is 23% (95% CI 13%-40%). Donor stem cell use was associated with a significantly decreased risk of treatment-related toxicity (p < 0.001), but with an increased risk for GVHD and delayed fungal and viral infections. These infections are linked not only to the use of donor-stem cells, but also to the methylprednisolone in the GVHD prophylaxis regimen. Improvements in the outcome of patients with advanced NHL and undergoing allogeneic transplantation will depend on the development of effective and non-toxic regimens for conditioning, GVHD prophylaxis, and opportunistic infections prophylaxis.
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Affiliation(s)
- K van Besien
- Department of Hematology, University of Texas, M.D. Anderson Cancer Center, Houston, USA.
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18
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Fayad L, Kantarjian H, O'Brien S, Seong D, Albitar M, Keating M, Talpaz M. Emergence of new clonal abnormalities following interferon-alpha induced complete cytogenetic response in patients with chronic myeloid leukemia: report of three cases. Leukemia 1997; 11:767-71. [PMID: 9180306 DOI: 10.1038/sj.leu.2400642] [Citation(s) in RCA: 63] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
New treatments which may change the course of a disease, or which have potential carcinogenicity, may result in the development of new cytogenetic or clinical disorders. Three patients with Philadelphia chromosome-positive (Ph-positive) chronic myeloid leukemia (CML) who developed new cytogenetic abnormalities after achieving a cytogenetic complete remission (CR) of their Ph-positive disease with interferon alpha (IFN-alpha) based therapy are described. Patient 1 developed chromosomal abnormalities involving chromosomes 5 (5q13-34) and later 7 (monosomy 7) 60 months after the start of therapy and 20 months after IFN-alpha was discontinued. A myelodysplastic syndrome was noted 83 months from the start of therapy. Patient 2 developed a myeloproliferative syndrome with 18p11 chromosomal abnormalities 90 months after the start of the therapy and 60 months after IFN-alpha was discontinued. Patient 3 developed a chromosome 11 abnormality (11q21-23) 23 months after the start of therapy, without hematological manifestations. All three patients remain in cytogenetic CR of Ph-positive disease with the hypermetaphase fluorescent in situ hybridization and polymerase chain reaction studies for BCR/ABL showing minimal residual disease. The emergence of new cytogenetic or clinical disorders in patients with CML on IFN-alpha therapy needs to be monitored. These findings may be related to changing the natural course of CML, to therapy, or to the emergence of suppressed clones in a stem cell disorder.
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MESH Headings
- Aged
- Blood Transfusion
- Bone Marrow/pathology
- Chromosome Aberrations
- Chromosome Deletion
- Chromosome Disorders
- Chromosome Mapping
- Chromosomes, Human, Pair 11
- Chromosomes, Human, Pair 18
- Chromosomes, Human, Pair 5
- Chromosomes, Human, Pair 7
- Female
- Humans
- Interferon Type I/adverse effects
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/genetics
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/pathology
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/therapy
- Male
- Middle Aged
- Myelodysplastic Syndromes/chemically induced
- Myelodysplastic Syndromes/genetics
- Recombinant Proteins
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Affiliation(s)
- L Fayad
- Department of Hematology, MD Anderson Cancer Center, Houston, TX 77030, USA
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Anderlini P, Przepiorka D, Lauppe J, Seong D, Giralt S, Champlin R, Körbling M. Collection of peripheral blood stem cells from normal donors 60 years of age or older. Br J Haematol 1997; 97:485-7. [PMID: 9163620 DOI: 10.1046/j.1365-2141.1997.302677.x] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
We report 14 normal peripheral blood stem cell (PBSC) donors > or = 60 years of age who had cytokine mobilization followed by PBSC apheresis for allogeneic transplantation. Mobilization was achieved with filgrastim (6 microg/kg twice daily). Their median age was 63.5 years (range 60-77), and 43% had a positive medical history, mainly hypertension and/or cardiac problems. Their median pre-apheresis leucocyte count (x 10(9)/l) was 38.6 (range 29.6-63.4). The median apheresis yield (x 10(6) CD34+ cells/litre blood processed, first apheresis) was 27.9 (range 1.6-54.8). The target cell dose (> or = 4 x 10(6) CD34+ cells/kg recipient) was reached with one procedure in eight (57%) donors. Filgrastim-related adverse events were acceptable and apheresis was well tolerated. When compared to younger donors (< 60 years of age), a trend to a lower CD34+ apheresis yield and a requirement for more than one apheresis to achieve the collection target (> or = 4 x 10(6) CD34+ cells/kg) was evident. Although older (> or = 60 years) donors seem to mobilize less effectively, these data suggest that PBSC collection from them is feasible and has an acceptable short-term safety profile.
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Affiliation(s)
- P Anderlini
- Department of Hematology, The University of Texas M.D. Anderson Cancer Center, Houston 77030, USA
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20
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Seong D, Giralt S, Fischer H, Hayes K, Glassman A, Arlinghaus R, Xu J, Kantarjian H, Siciliano M, Champlin R. Usefulness of detection of minimal residual disease by 'hypermetaphase' fluorescent in situ hybridization after allogeneic BMT for chronic myelogenous leukemia. Bone Marrow Transplant 1997; 19:565-70. [PMID: 9085736 DOI: 10.1038/sj.bmt.1700700] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Hypermetaphase FISH (HMF), a molecular cytogenetic procedure combining the long term mitotic arrest of bone marrow cultures with detection of a specific chromosomal rearrangement by fluorescence in situ hybridization (FISH), has recently been shown to be effective in determining the frequency of Philadelphia chromosome positive (Ph+) cells in the bone marrow of chronic myelogenous leukemia (CML) patients undergoing treatment. By combining the probe for the Ph chromosome with one for the detection of the X chromosome, we used HMF to monitor the presence of malignant cells within the emerging host cell population in the marrow of a CML patient that had undergone sex-mismatched allogeneic bone marrow transplantation. In successive studies, we detected 0.5% and 1.75% Ph+ cells, respectively, confirmed by Western blot analysis for p210 protein. These readings occurred concordantly with a repopulation of host-derived diploid female cells. Standard G-band cytogenetic analyses did not detect any Ph+ cells at these time points. Intervention with donor lymphocyte infusion reinduced complete remission. This experience indicates that HMF is useful to identify low levels of repopulation by Ph+ cells in the marrow post-BMT at a stage when intervention is most efficacious.
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MESH Headings
- ABO Blood-Group System
- Adult
- Bone Marrow/ultrastructure
- Bone Marrow Transplantation
- Female
- Humans
- In Situ Hybridization, Fluorescence
- Karyotyping
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/blood
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/genetics
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/pathology
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/therapy
- Transplantation, Homologous
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Affiliation(s)
- D Seong
- Section of Blood and Marrow Transplantation, University of Texas, MD Anderson Cancer Center, Houston, USA
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21
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Giralt S, Weber D, Colome M, Dimopoulos M, Mehra R, Van Besien K, Gajewski J, Andersson B, Khouri I, Przepiorka D, von Wolff B, Delasalle K, Korbling M, Seong D, Alexanian R, Champlin R. Phase I trial of cyclosporine-induced autologous graft-versus-host disease in patients with multiple myeloma undergoing high-dose chemotherapy with autologous stem-cell rescue. J Clin Oncol 1997; 15:667-73. [PMID: 9053492 DOI: 10.1200/jco.1997.15.2.667] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
PURPOSE To determine the feasibility and toxicity of inducing autologous graft-versus-host disease (GVHD) with cyclosporine in patients with multiple myeloma undergoing autologous stem-cell transplantation. PATIENTS AND METHODS Fourteen multiple myeloma patients with a median age of 50 years (range, 41 to 63) were enrolled. The median time from diagnosis to transplant was 651 days (range, 229 to 3,353). Ten patients had primary refractory disease, two were in first remission, and two were responsive to salvage therapy. The preparative regimen consisted of thiotepa, busulfan, and cyclophosphamide. Cyclosporine was administered daily for 28 days after the stem-cell infusion, and the dose was adjusted to maintain whole-blood cyclosporine levels between 50 and 150 ng/dL in the first seven patients (low-level group) and between 150 and 300 ng/dL in the other seven patients (high-level group). RESULTS All patients achieved neutrophil engraftment a median of 11 days after transplant. Four patients developed > or = grade 2 hepatic toxicity, six developed > or = grade 2 nephrotoxicity, and four developed reversible cardiac toxicity. Only one treatment-related death occurred. Cyclosporine was withheld in seven patients for a median of 6 days because of renal and/or liver dysfunction. One patient developed clinical skin GVHD, which responded to corticosteroid therapy. Six patients developed histologic evidence of GVHD without clinical signs of GVHD (subclinical GVHD). The incidence of clinical and subclinical GVHD was similar in both cyclosporine groups. Three of 11 patients assessable for response achieved remissions. Three patients experienced disease progression 80, 160, and 354 days after transplant. Ten patients are alive without progression between 56 and 444 days after transplant. CONCLUSION Induction of autologous GVHD by posttransplant cyclosporine is feasible and well tolerated in patients with multiple myeloma.
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Affiliation(s)
- S Giralt
- Department of Hematology, The University of Texas M.D. Anderson Cancer Center, Houston 77030, USA
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22
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Anderlini P, Lauppe J, Przepiorka D, Seong D, Champlin R, Körbling M. Peripheral blood stem cell apheresis in normal donors: feasibility and yield of second collections. Br J Haematol 1997; 96:415-7. [PMID: 9029035 DOI: 10.1046/j.1365-2141.1997.d01-2013.x] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
We report 13 normal peripheral blood stem cell (PBSC) donors who had a second PBSC collection for allogeneic transplantation performed after the first. The median interval between the first and second collection was 5 months. Mobilization was achieved with filgrastim (12 microg/kg/d). No significant difference was found in the median pre-apheresis leucocyte count (x10(9)/l) between the two donations (40.2 v 38.5; P = 0.91). The median apheresis yield (x10(6) CD34+ cells/litre blood processed, first apheresis) was also similar (28 v 27.3; P = 0.91). Filgrastim-related adverse events were comparable. These data suggest that second PBSC collections are feasible, similarly tolerated and provide comparable apheresis yields.
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Affiliation(s)
- P Anderlini
- Department of Hematology, The University of Texas M.D. Anderson Cancer Center, Houston 77030, USA
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23
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Hanania EG, Giles RE, Kavanagh J, Fu SQ, Ellerson D, Zu Z, Wang T, Su Y, Kudelka A, Rahman Z, Holmes F, Hortobagyi G, Claxton D, Bachier C, Thall P, Cheng S, Hester J, Ostrove JM, Bird RE, Chang A, Korbling M, Seong D, Cote R, Holzmayer T, Deisseroth AB. Results of MDR-1 vector modification trial indicate that granulocyte/macrophage colony-forming unit cells do not contribute to posttransplant hematopoietic recovery following intensive systemic therapy. Proc Natl Acad Sci U S A 1996; 93:15346-51. [PMID: 8986814 PMCID: PMC26407 DOI: 10.1073/pnas.93.26.15346] [Citation(s) in RCA: 130] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/1996] [Accepted: 10/14/1996] [Indexed: 02/03/2023] Open
Abstract
To formally test the hypothesis that the granulocyte/macrophage colony-forming unit (GM-CFU) cells can contribute to early hematopoietic reconstitution immediately after transplant, the frequency of genetically modified GM-CFU after retroviral vector transduction was measured by a quantitative in situ polymerase chain reaction (PCR), which is specific for the multidrug resistance-1 (MDR-1) vector, and by a quantitative GM-CFU methylcellulose plating assay. The results of this analysis showed no difference between the transduction frequency in the products of two different transduction protocols: "suspension transduction" and "stromal growth factor transduction." However, when an analysis of the frequency of cells positive for the retroviral MDR-1 vector posttransplantation was carried out, 0 of 10 patients transplanted with cells transduced by the suspension method were positive for the vector MDR-1 posttransplant, whereas 5 of 8 patients transplanted with the cells transduced by the stromal growth factor method were positive for the MDR-1 vector transcription unit by in situ or in solution PCR assay (a difference that is significant at the P = 0.0065 level by the Fisher exact test). These data suggest that only very small subsets of the GM-CFU fraction of myeloid cells, if any, contribute to the repopulation of the hematopoietic tissues that occurs following intensive systemic therapy and transplantation of autologous hematopoietic cells.
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Affiliation(s)
- E G Hanania
- University of Texas M.D. Anderson Cancer Center, Houston 77030, USA
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24
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Körbling M, Anderlini P, Durett A, Maadani F, Bojko P, Seong D, Giralt S, Khouri I, Andersson B, Mehra R, vanBesien K, Mirza N, Przepiorka D, Champlin R. Delayed effects of rhG-CSF mobilization treatment and apheresis on circulating CD34+ and CD34+ Thy-1dim CD38- progenitor cells, and lymphoid subsets in normal stem cell donors for allogeneic transplantation. Bone Marrow Transplant 1996; 18:1073-9. [PMID: 8971375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Allogeneic transplantation of peripheral blood progenitor cells (PBPC) is emerging as a new stem cell transplant modality. Rather than undergoing general anesthesia for bone marrow harvest, normal blood stem cell donors are subjected to rhG-CSF mobilization treatment followed by single or multiple apheresis. Whereas the effects of cytokine treatment and apheresis on stem cell peripheralization and collection have been described, little is known about delayed effects of rhG-CSF treatment and apheresis on a normal hematopoietic system, and there are no long-term data that address safety issues. Ten normal, patient-related donors underwent a 3 or 4 day rhG-CSF (filgrastim) treatment (12 micrograms/kg/day) followed by single or tandem apheresis. We monitored peripheral blood (PB) cellularity including CD34+ and lymphoid subsets at baseline, during cytokine treatment, prior to apheresis, and at days 2, 4, 7, 30 and 100 post-apheresis. The PB progenitor cell concentration peak prior to apheresis was followed by a nadir by day 7 and normalized by day 30, with the exception of the most primitive CD34+ Thy-1dim CD38- progenitor subset that reached a nadir by day 30. Lymphoid subsets such as CD3, 4, 8, suppressor cells (CD3+ 4- 8- TCR+ alpha beta), and B cells (CD19+) showed a similar pattern with a nadir concentration by day 7, followed, except for B cells, by a rebound by day 30 and subnormal counts at day 100. The PB concentrations of hemoglobin and platelets dropped mainly due to the apheresis procedure itself, and normalized by day 30. With cytokine treatment, the PB alkaline phosphatase and lactate dehydrogenase concentrations increased 2.2- and 2.8-fold, respectively, over baseline, and returned to normal range by day 30. Based on the preliminary nature of this study, the clinical relevance of these findings is still unclear.
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Affiliation(s)
- M Körbling
- University of Texas, MD Anderson Cancer Center, Division of Medicine, Houston 77030, USA
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25
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Körbling M, Chan KW, Anderlini P, Seong D, Durett A, Langlinais A, Przepiorka D, Gajewski J, Miller P, Sundberg J, Alilaen P, Bojko P, Mirza N, Claxton D, van Besien K, Khouri I, Andersson B, Mehra R, Champlin R. Allogeneic peripheral blood stem cell transplantation using normal patient-related pediatric donors. Bone Marrow Transplant 1996; 18:885-90. [PMID: 8932841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Successful allogeneic peripheral blood progenitor cell (PBPC) transplantation has recently been reported by several transplant centers. This is a first report describing allogeneic PBPC transplantation in five patients using related pediatric donors between the ages of 4 and 13 years. Donors underwent 3 or 4 days of rhG-CSF treatment (6 micrograms/kg q 12 h) for stem cell peripheralization prior to PBPC collection, which was performed by continuous-flow apheresis on day 4 or 5. Venous access was exclusively by ante-cubital veins. A median of 2.2 times (range 1.4-3.6) the donor's total blood volume (TBV) was processed per procedure. In cases where the donor's TBV was < 2 liters, the blood cell separator was primed with human serum albumin (HSA-5%), and anticoagulation was performed using a combination of heparin (pre-apheresis bolus + continuous infusion (CI)) and/or ACD-A (CI at a reduced rate). The median number of CD34+ cells collected per kg of donor body weight (b.w.) and per liter of donor blood processed during each procedure was 128 x 10(4) (range 58 x 10(4)-314 x 10(4)). Between one and two aphereses were sufficient to collect a safe CD34+ cell engraftment dose of 3 or 4 x 10(6)/kg of recipient b.w. Two PBPC recipients were parents, and three were siblings. After freezing and thawing, the median number of CD34+ cells per kg of recipient b.w. thawed and transfused was 8.5 x 10(6) (range 3.2 x 10(6)-9.7 x 10(6)). The time to PMN > 1000/microliters was between 10 and 16 days (four out of five evaluable patients), and platelets > 20000/microliters were reached between day 13 and 14 post-transplantation (three out of five evaluable patients). Two out of three evaluable patients developed grades one and three acute GVHD, and one out of three developed chronic GVHD. Two patients died of sepsis and VOD at day 10 and 19, respectively. Two adult patients are alive and in cytogenetic and molecular remission of CML at +339 and +227 days post-allotransplantation. One 3-year-old girl with hemophagocytic lymphohistiocytosis is in remission at +304 days post-transplantation. Using pediatric donors for allogeneic PBPC transplantation appears to be safe, yields a sufficient amount of progenitors for prompt engraftment, and results in clinical outcome similar to adult PBPC allotransplantation.
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Affiliation(s)
- M Körbling
- Department of Hematology and Pediatrics, University of Texas MD Anderson Cancer Center, Houston 77030, USA
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26
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Seong D, Bruner JM, Lee KH, Mirza N, Kwon BD, Lee JH, Lee YY, Ro J, Talpaz M, Champlin R, Deisseroth AB. Progressive multifocal leukoencephalopathy after autologous bone marrow transplantation in a patient with chronic myelogenous leukemia. Clin Infect Dis 1996; 23:402-3. [PMID: 8842290 DOI: 10.1093/clinids/23.2.402] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
MESH Headings
- Adult
- Bone Marrow Transplantation/adverse effects
- Brain/pathology
- Brain/virology
- DNA, Viral/analysis
- Female
- Follow-Up Studies
- Humans
- JC Virus/genetics
- JC Virus/isolation & purification
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/complications
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/therapy
- Leukoencephalopathy, Progressive Multifocal/complications
- Leukoencephalopathy, Progressive Multifocal/physiopathology
- Leukoencephalopathy, Progressive Multifocal/virology
- Papillomavirus Infections/complications
- Papillomavirus Infections/physiopathology
- Papillomavirus Infections/therapy
- Papillomavirus Infections/virology
- Transplantation, Autologous
- Tumor Virus Infections/complications
- Tumor Virus Infections/physiopathology
- Tumor Virus Infections/therapy
- Tumor Virus Infections/virology
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Affiliation(s)
- D Seong
- Department of Hematology, University of Texas M.D. Anderson Cancer Center, Houston, USA
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27
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Anderlini P, Przepiorka D, Seong D, Miller P, Sundberg J, Lichtiger B, Norfleet F, Chan KW, Champlin R, Körbling M. Clinical toxicity and laboratory effects of granulocyte-colony-stimulating factor (filgrastim) mobilization and blood stem cell apheresis from normal donors, and analysis of charges for the procedures. Transfusion 1996; 36:590-5. [PMID: 8701453 DOI: 10.1046/j.1537-2995.1996.36796323057.x] [Citation(s) in RCA: 143] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
BACKGROUND Apheresis of granulocyte-colony-stimulating factor (filgrastim)-mobilized blood stem cells from normal donors is now being used in place of a marrow harvest in transplantation. How the adverse effects of and charges for this procedure compare with those of the standard marrow harvest is not known. STUDY DESIGN AND METHODS Forty consecutive normal subjects who received filgrastim 96 micrograms/kg) subcutaneously twice daily for 4 to 6 days in preparation for apheresis were monitored prospectively by clinical and laboratory evaluation. RESULTS Sixty-two percent of the subjects required oral analgesics. None discontinued filgrastim prematurely. Bone pain (82%), headache (70%), fatigue (20%), and nausea (10%) were reported. Filgrastim caused a mean eightfold increase in neutrophil counts, a mean twofold increase in lymphocyte counts, a mean twofold rise in alkaline phosphatase and lactate dehydrogenase levels, and minor changes in serum potassium, magnesium, and uric acid. Adverse events and laboratory effects resolved within 7 days after apheresis. No apheresis stem cell donor required transfusion or hospitalization, and only one required an additional clinic visit after completion of apheresis. By comparison, a retrospective analysis of 33 normal marrow donors demonstrated that all received transfusion(s), 3 were hospitalized, 3 required additional clinic visits after the marrow harvest. The median total charges related to the two procedures were comparable (p = 0.43), although the charges were significantly lower for donors requiring only one apheresis procedure (p = 0.002). CONCLUSION Filgrastim mobilization and apheresis of blood stem cells constitute a safe, well-tolerated, and comparable or less expensive alternative to the traditional marrow harvest.
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Affiliation(s)
- P Anderlini
- Section of Blood Transplantation, University of Texas, M.D. Anderson Cancer Center, Houston, USA
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28
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Abstract
Thirteen normal adult donors underwent daily leukapheresis for peripheral blood progenitor cell collection for allografting beginning on day 4 or 5 of G-CSF mobilization (12 micrograms/kg/d). They had complete blood counts performed 7-10 d after the completion of the procedure. A reduction in the total leucocyte count below baseline levels, accounted for by a decrease in the absolute neutrophil (ANC) and lymphocyte counts, was noted. Neutropenia (ANC < 1.5 x 10(9)/l) occurred in two (15%) of the donors. The lowest ANC observed was 0.6 x 10(9)/l. The neutropenia was asymptomatic and resolved on follow-up evaluation.
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Affiliation(s)
- P Anderlini
- Department of Hematology, University of Texas M. D. Anderson Cancer Center, Houston 77030, USA
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29
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Anderlini P, Przepiorka D, Huh Y, Lauppe J, Miller P, Sundberg J, Seong D, Champlin R, Körbling M. Duration of filgrastim mobilization and apheresis yield of CD34+ progenitor cells and lymphoid subsets in normal donors for allogeneic transplantation. Br J Haematol 1996; 93:940-2. [PMID: 8703830 DOI: 10.1046/j.1365-2141.1996.d01-1747.x] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Seventy-seven normal donors underwent leukapheresis for peripheral blood progenitor cell collection beginning on day 4 (n = 45) or day 5 (n = 32) of filgrastim mobilization (12 micrograms/kg/d). The two groups were comparable for age, weight, blood volumes processed during leukapheresis and target CD34+ cell dose to be collected. The day 5 schedule allowed a more consistent achievement of the target cell dose with one apheresis (P = 0.005) and resulted in the initial collection of a significantly larger number of CD34+ cells (P = 0.009). There was no statistically significant difference in the leukapheresis yield of lymphoid subsets and natural killer cells.
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Affiliation(s)
- P Anderlini
- Department of Hematology and Laboratory Medicine, University of Texas M. D. Anderson Cancer Center, Houston 77030, USA
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30
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Giralt S, Hester J, Huh Y, Hirsch-Ginsberg C, Rondón G, Seong D, Lee M, Gajewski J, Van Besien K, Khouri I, Mehra R, Przepiorka D, Körbling M, Talpaz M, Kantarjian H, Fischer H, Deisseroth A, Champlin R. CD8-depleted donor lymphocyte infusion as treatment for relapsed chronic myelogenous leukemia after allogeneic bone marrow transplantation. Blood 1995; 86:4337-43. [PMID: 7492795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
Donor lymphocyte infusions can reinduce complete remission in the majority of patients with chronic myelogenous leukemia (CML) who relapse into chronic phase after allogeneic bone marrow transplantation (BMT). Such infusions are associated with a high incidence of graft-versus-host disease (GVHD) and marrow aplasia. BMT using selective depletion of CD8+ lymphocytes from donor cells reduces the incidence of GVHD without an increase in leukemia relapse. We hypothesized that infusion of CD8-depleted donor peripheral blood lymphocytes could also reinduce complete remissions with a lesser potential to produce symptomatic GVHD in patients with CML who relapsed after allogeneic BMT. Ten patients with Ph(+) CML who relapsed a median of 353 days after BMT (range, 82 to 1,096 days) received donor lymphocyte infusions depleted of CD8+ cells. Nine patients received a single infusion and 1 received two infusions. Four patients were treated while in chronic phase with clonal evolution, 2 during accelerated phase, 3 during blast crisis, and 1 in a cytogenetic relapse. A mean of 0.9 +/- 0.3 x 10(8) mononuclear cells/kg were infused, containing 0.6 +/- 0.4 x 10(6) CD3+CD8+ cells/kg. Six patients achieved hematologic and cytogenetic remission at 4, 8, 11, 15, 39, and 54 weeks after lymphocyte infusion. Two patients developed > or = grade II acute GVHD, and 1 patient developed mild chronic GVHD. We conclude that donor lymphocyte infusions depleted of CD8+ cells can induce remissions with a low rate of severe acute GVHD in patients with CML who relapse after allogeneic BMT, supporting the hypothesis that CD8+ lymphocytes are important effectors of GVHD, but may not be essential for the graft-versus-leukemia effect against this disease. Further controlled studies are required to confirm these preliminary observations.
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Affiliation(s)
- S Giralt
- Department of Hematology, University of Texas M.D. Anderson Cancer Center, Houston 77031, USA
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31
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Körbling M, Przepiorka D, Huh YO, Engel H, van Besien K, Giralt S, Andersson B, Kleine HD, Seong D, Deisseroth AB. Allogeneic blood stem cell transplantation for refractory leukemia and lymphoma: potential advantage of blood over marrow allografts. Blood 1995; 85:1659-65. [PMID: 7888684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
Peripheral blood stem cells (PBSCs) have been used rarely for allogeneic transplantation because of concerns regarding graft failure and graft-versus-host disease (GVHD). We evaluated the results of allogeneic PBSC transplantation (allo-PBSCT) in 9 patients with refractory leukemia or lymphoma receiving myeloablative therapy followed by allo-PBSCT from an HLA-identical sibling donor. Three patients had relapsed 11 to 21 months after allogeneic bone marrow transplantation (allo-BMT) and underwent allo-PBSCT using the same donor. Six patients received PBSCs as their initial allogeneic transplant. Filgrastim-mobilized PBSCs were collected from the donors in 3 to 4 aphereses and cryopreserved. The apheresis collections contained a median nucleated cell count of 16.5 x 10(8)/kg (range, 10.8 to 28.7 x 10(8), 10.7 x 10(6) CD34+ cells/kg (range, 7.5 to 22.5 x 10(6)), and 300.0 x 10(6) CD3+ cells/kg (range, 127.8 to 1,523.2 x 10(6)). The median recovery of CD34+ progenitor cells after freezing, thawing, and washing was 106.4% (range, 36.7% to 132.0%). All patients received filgrastim posttransplant through engraftment, and cyclosporine and methylprednisolone were used for GVHD prophylaxis. Neutrophil recovery to greater than 0.5 x 10(9)/L and greater than 1.0 x 10(9)/L occurred at a median of 9 (range, 8 to 10) and 9 days (range, 8 to 11) posttransplant, respectively, which was similar to historical controls after allo-BMT and granulocyte colony-stimulating factor therapy. Platelets recovered to greater than 20 x 10(9)/L and greater than 50 x 10(9)/L at a median of 12 (range, 8 to 25) and 15 days (range, 11 to 59), respectively, which was significantly more rapid than for the controls (P < .01). Donor cell engraftment was documented by cytogenetics, fluorescence in situ hybridization, and/or restriction fragment length polymorphisms with longest follow-up of 283 + days. Three patients developed grade 2 acute GVHD involving only the skin. Three of five evaluable patients show limited chronic GVHD. Cryopreserved, filgrastim-stimulated allogeneic PBSCs may be a suitable alternative to allogeneic marrow for transplantation with the advantage of more rapid platelet recovery. Acute GVHD was minimal despite the infusion of 1 log more CD3 cells than with marrow allografts. Further studies are required to assess long-term risks of chronic GVHD.
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Affiliation(s)
- M Körbling
- Section of Bone Marrow Transplantation, U.T.M.D. Anderson Cancer Center, Houston 77030
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32
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Przepiorka D, Ippoliti C, Koberda J, Chan KW, Khouri IF, Fischer HE, Huh YO, Escudier SM, Seong D, Davis M. Interleukin-2 for prevention of graft-versus-host disease after haploidentical marrow transplantation. Transplantation 1994; 58:858-60. [PMID: 7940725] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- D Przepiorka
- Section of Bone Marrow Transplantation, U.T.M.D. Anderson Cancer Center, Houston 77030
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33
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Liu P, Siciliano J, Seong D, Craig J, Zhao Y, de Jong PJ, Siciliano MJ. Dual Alu polymerase chain reaction primers and conditions for isolation of human chromosome painting probes from hybrid cells. Cancer Genet Cytogenet 1993; 65:93-9. [PMID: 8453610 DOI: 10.1016/0165-4608(93)90213-6] [Citation(s) in RCA: 52] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
A method for rapid and efficient production of chromosome- and chromosome-region specific probes for fluorescent in situ hybridization (FISH) detectable by simple fluorescent microscopy is described. The procedure is based on simultaneous use of two inter-Alu-polymerase chain reaction (PCR) primers for extraction of highly heterogeneous human DNA from interspecific somatic cell hybrids containing the chromosome regions of interest. Probes so produced do not hybridize to centromeric sequences and simultaneously band the target chromosomes, making them useful for unambiguous identification of chromosomal elements and breakpoints associated with cancer.
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Affiliation(s)
- P Liu
- Department of Molecular Genetics, University of Texas M. D. Anderson Cancer Center, Houston 77030
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34
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Wedrychowski A, Henzel W, Huston L, Paslidis N, Ellerson D, McRae M, Seong D, Howard OM, Deisseroth A. Identification of proteins binding to interferon-inducible transcriptional enhancers in hematopoietic cells. J Biol Chem 1992; 267:4533-40. [PMID: 1537839] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
The binding of nuclear proteins of hematopoietic cells to transcriptional enhancers of interferon-inducible genes has been studied before and after exposure to alpha-interferon. Mobility shift assays show that a complex formed with interferon-inducible transcriptional enhancers before interferon induction contains a 73- and 84-kDa protein. Amino acid sequencing of the oligoaffinity column purified 73- and 84-kDa proteins showed that they belonged to a family of DNA-binding proteins which have been previously identified to exhibit binding in a sequence nonspecific manner to the ends of fragmented DNA or the origin of replication of adenovirus Type 2 DNA and sequence-specific binding to the distal regions of the U1 small nuclear RNA promoter, the promoter of the transferrin receptor gene, and the transcriptional regulatory regions of HLA genes. Following exposure to alpha-interferon, more slowly migrating complexes appeared which contained a 48-kDa protein, a 95-kDa protein, and a 105-kDa protein which bound to the 9-27 transcriptional enhancer in a sequence-specific manner.
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Affiliation(s)
- A Wedrychowski
- Department of Hematology, University of Texas M. D. Anderson Cancer Center, Houston 77030
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35
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Wedrychowski A, Henzel W, Huston L, Paslidis N, Ellerson D, McRae M, Seong D, Howard O, Deisseroth A. Identification of proteins binding to interferon-inducible transcriptional enhancers in hematopoietic cells. J Biol Chem 1992. [DOI: 10.1016/s0021-9258(18)42866-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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36
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Seong D, Sims S, Johnson E, Lyding J, Lopez A, Garovoy M, Talpaz M, Kantarjian H, Lopez-Berestein G, Reading C. Activation of class I HLA expression by TNF-alpha and gamma-interferon is mediated through protein kinase C-dependent pathway in CML cell lines. Br J Haematol 1991; 78:359-67. [PMID: 1908310 DOI: 10.1111/j.1365-2141.1991.tb04449.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
The combination of tumour necrosis factor alpha (TNF alpha) and gamma-interferon induced transcription of class I HLA genes in chronic myelogenous leukaemia (CML) cell lines through the formation of a complex between nuclear proteins and the transcriptional enhancers associated with these genes. Although gamma-interferon or TNF-alpha stimulated expression of class I HLA antigens in the EM2 and K562 CML cell lines when used alone, the effect of the combination of TNF-alpha and gamma-interferon was greater than that observed with either agent alone. The induction of class I HLA expression by gamma-interferon and TNF-alpha was inhibited completely by the isoquinoline sulfonamide H7, an inhibitor of protein kinase C. We conclude that the enhancement of the gamma-interferon induced transcriptional activation of class I HLA gene expression by TNF-alpha involves a protein kinase C-dependent pathway.
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MESH Headings
- Base Sequence
- Cell Division
- Cell Line
- Enhancer Elements, Genetic
- Gene Expression
- Genes, MHC Class I/drug effects
- Interferon-gamma/pharmacology
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/enzymology
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/genetics
- Molecular Sequence Data
- Nuclear Proteins/metabolism
- Protein Kinase C/metabolism
- RNA, Messenger/analysis
- Transcription, Genetic/drug effects
- Tumor Cells, Cultured/drug effects
- Tumor Necrosis Factor-alpha/pharmacology
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Affiliation(s)
- D Seong
- Department of Hematology, University of Texas M.D. Anderson Cancer Center, Houston 77030
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37
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Wedrychowski A, Seong D, Paslidis N, Johnson E, Howard OM, Sims S, Talpaz M, Kantarjian H, Hester J, Turpin J. Characterization of nuclear proteins which bind to interferon-inducible transcriptional enhancers in hematopoietic cells. J Biol Chem 1990; 265:21433-40. [PMID: 2174873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Nuclear proteins isolated from untreated lymphoid cells formed complexes with the interferon-inducible transcriptional enhancer (IITE) containing a 73- and an 84-kDa protein, whereas the nuclear proteins of untreated myeloid cells formed complexes with the IITE which contained 50-, 65-, and 73-, but not 84-kDa nuclear proteins. The difference in the molecular masses of the nuclear proteins binding to the IITE in lymphoid and myeloid cells was due to a phosphatase present in the cytoplasm of the myeloid cells. Induction of transcriptional activation by interferon was accompanied by the binding of a 95-kDa nuclear protein to the IITE 1-4 h after the start of exposure to interferon. Cycloheximide did not inhibit the binding of the 95-kDa nuclear protein or the transcriptional activation of alpha-interferon-inducible genes. These data suggest that the induction of gene transcription by alpha-interferon in hematopoietic cells may be associated with post-translational changes in a 95-kDa nuclear protein that binds to IITE, thereby leading to transcriptional activation.
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Affiliation(s)
- A Wedrychowski
- Department of Hematology, University of Texas M. D. Anderson Cancer Center, Houston 77030
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38
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Wedrychowski A, Seong D, Paslidis N, Johnson E, Howard OM, Sims S, Talpaz M, Kantarjian H, Hester J, Turpin J. Characterization of nuclear proteins which bind to interferon-inducible transcriptional enhancers in hematopoietic cells. J Biol Chem 1990. [DOI: 10.1016/s0021-9258(18)45756-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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39
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Howard OM, Talpaz M, Kantarjian H, Seong D, Wedrychowski A, Paslidis N, Hester J, Cork A, Turpin J, Lopez-Berestein G. Interferon affects nuclear proteins in cells of clinically sensitive chronic myelogenous leukemia patients. Blood 1990; 76:1117-30. [PMID: 2400807] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Cytoplasmic protein extracts from chronic myelogenous leukemia (CML) cells contained an activity that altered the electrophoretic mobility of complexes formed between nuclear proteins and the transcriptional enhancers of interferon (IFN)-inducible genes. Exposure of CML cells to IFN-alpha diminished the effect of the CML cytoplasmic proteins on these nuclear protein-DNA complexes. The presence of clinical responsiveness to IFN-alpha correlated with the sensitivity to the IFN-induced change in the electrophoretic mobility of nuclear protein-DNA complexes. These data suggest that the action of IFN-alpha in CML may be linked to a pathway that can result in posttranslational modification of nuclear proteins.
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Affiliation(s)
- O M Howard
- Department of Hematology, University of Texas M.D. Anderson Cancer Center, Houston, TX
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40
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Frasier-Scott K, Hatzakis H, Seong D, Jones CM, Wu KK. Influence of natural and recombinant interleukin 2 on endothelial cell arachidonate metabolism. Induction of de novo synthesis of prostaglandin H synthase. J Clin Invest 1988; 82:1877-83. [PMID: 3143745 PMCID: PMC442767 DOI: 10.1172/jci113805] [Citation(s) in RCA: 60] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
We studied the effects of natural and recombinant human IL-2 (rIL-2) on secretion of prostacyclin (PGI2), vWf, and tissue-type plasminogen activator (tPA). IL-2 elicited a steady increase in PGI2 synthesis by cultured human umbilical vein endothelial cells (HUVECS) and bovine aortic endothelial cells but had no effect on vWf or tPA. Both purified natural IL-2 (nIL-2) and rIL-2 induced significant PGI2 synthesis. Substitution of the cysteine residue at position 125 of rIL-2 with serine or alanine led to loss of PGI2-stimulatory activity in HUVECS without affecting thymidine incorporation in lymphocytes. HPLC analysis of arachidonate metabolites detected predominantly 6 keto-PGF1 alpha (6KPGF1 alpha) peak. Treatment of cultured endothelial cells with cycloheximide and actinomycin D resulted in inhibition of 6KPGF1 alpha synthesis. The Western blot using a polyclonal antibody against PGH synthase revealed an increment in the 70-kD subunit of PGH synthase by nIL-2 and rIL-2, but not by alanine-substituted rIL-2. We conclude that IL-2 stimulated sustained PGI2 production by a mechanism that includes the de novo synthesis of PGH synthase. This mechanism for regulating AA metabolism probably has important physiologic implications.
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Affiliation(s)
- K Frasier-Scott
- Department of Internal Medicine, University of Texas Medical School, Houston 77225
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