1
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Li Y, Liu Y, Yang K, Jin L, Yang J, Huang S, Liu Y, Hu B, Liu R, Liu W, Liu A, Zheng Q, Zhang Y. Impact of ARID1A and TP53 mutations in pediatric refractory or relapsed mature B-Cell lymphoma treated with CAR-T cell therapy. Cancer Cell Int 2023; 23:281. [PMID: 37981695 PMCID: PMC10657579 DOI: 10.1186/s12935-023-03122-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Accepted: 11/02/2023] [Indexed: 11/21/2023] Open
Abstract
BACKGROUND Chimeric antigen receptor (CAR)-T cell therapy has been used to treat pediatric refractory or relapsed mature B-cell non-Hodgkin lymphoma (r/r MB-NHL) with significantly improved outcomes, but a proportion of patients display no response or experience relapse after treatment. To investigate whether tumor-intrinsic somatic genetic alterations have an impact on CAR-T cell treatment, the genetic features and treatment outcomes of 89 children with MB-NHL were analyzed. METHODS 89 pediatric patients treated at multiple clinical centers of the China Net Childhood Lymphoma (CNCL) were included in this study. Targeted next-generation sequencing for a panel of lymphoma-related genes was performed on tumor samples. Survival rates and relapse by genetic features and clinical factors were analyzed. Survival curves were calculated using a log-rank (Mantel-Cox) test. The Wilcox sum-rank test and Fisher's exact test were applied to test for group differences. RESULTS A total of 89 driver genes with somatic mutations were identified. The most frequently mutated genes were TP53 (66%), ID3 (55%), and ARID1A (31%). The incidence of ARID1A mutation and co-mutation of TP53 and ARID1A was high in patients with r/r MB-NHL (P = 0.006; P = 0.018, respectively). CAR-T cell treatment significantly improved survival in r/r MB-NHL patients (P = 0.00081), but patients with ARID1A or ARID1A and TP53 co-mutation had poor survival compared to those without such mutations. CONCLUSION These results indicate that children with MB-NHL harboring ARID1A or TP53 and ARID1A co-mutation are insensitive to initial conventional chemotherapy and subsequent CAR-T cell treatment. Examination of ARID1A and TP53 mutation status at baseline might have prognostic value, and risk-adapted or more effective therapies should be considered for patients with these high-risk genetic alterations.
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Affiliation(s)
- Yang Li
- Molecular diagnostics laboratory, Beijing GoBroad Boren Hospital, Beijing, China
| | - Yang Liu
- Department of Pediatric Lymphoma, Beijing GoBroad Boren Hospital, Beijing, China
| | - Keyan Yang
- Molecular diagnostics laboratory, Beijing GoBroad Boren Hospital, Beijing, China
| | - Ling Jin
- Department of Hematology/Oncology, Beijing Children's Hospital, National Center for Children's Health, Capital Medical University, Beijing, China
| | - Jing Yang
- Department of Hematology/Oncology, Beijing Children's Hospital, National Center for Children's Health, Capital Medical University, Beijing, China
| | - Shuang Huang
- Department of Hematology/Oncology, Beijing Children's Hospital, National Center for Children's Health, Capital Medical University, Beijing, China
| | - Ying Liu
- Department of Pediatric Lymphoma, Beijing GoBroad Boren Hospital, Beijing, China
| | - Bo Hu
- Department of Pediatric Lymphoma, Beijing GoBroad Boren Hospital, Beijing, China
| | - Rong Liu
- Department of Hematology/Oncology, Capital institute of pediatric, Beijing, China
| | - Wei Liu
- Department of Hematology/Oncology, Zhengzhou Children's Hospital, Zhengzhou, China
| | - Ansheng Liu
- Department of Hematology/Oncology, Xian Children's Hospital, Xi'An, China
| | - Qinlong Zheng
- Molecular diagnostics laboratory, Beijing GoBroad Boren Hospital, Beijing, China.
| | - Yonghong Zhang
- Department of Pediatric Lymphoma, Beijing GoBroad Boren Hospital, Beijing, China.
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2
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Goldman S, Cairo MS. Diagnosis and management of mature B-cell lymphomas in children, adolescents, and young adults. Best Pract Res Clin Haematol 2023; 36:101463. [PMID: 37353299 DOI: 10.1016/j.beha.2023.101463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Accepted: 03/23/2023] [Indexed: 04/04/2023]
Abstract
Mature B-cell lymphoma in children, adolescents and young adults comprises three major histological subtypes including in order of frequency Burkitt, germinal center diffuse large B-cell lymphoma and primary mediastinal B-cell lymphoma. The cure rate of the first two with aggressive short chemotherapy based on clinical grouping is ∼90% in resource rich countries. Recent data has shown that incorporation of immune therapy has enhanced event free survival in advanced patients. Future studies will address the possibility of reducing the burden of chemotherapy by substitution of immune based therapies.
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Affiliation(s)
- Stanton Goldman
- Department of Pediatric Hematology/Oncology/Stem Cell Transplantation, Medical City Children's Hospital, Dallas, TX, USA.
| | - Mitchell S Cairo
- Department of Pediatrics, New York Medical College, Valhalla, NY, USA; Department of Pathology, New York Medical College, Valhalla, NY, USA; Department of Epidemiology and Community Health, New York Medical College, Valhalla, NY, USA; Department of Medicine, New York Medical College, Valhalla, NY, USA; Department of Microbiology and Immunology, New York Medical College, Valhalla, NY, USA; Department of Cell Biology and Anatomy, New York Medical College, Valhalla, NY, USA
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3
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李 碧, 韩 亚, 殷 楚, 杜 伟, 李 远, 王 颖. [Efficacy and safety of rituximab in children and adolescents with mature B-cell non-Hodgkin's lymphoma: a Meta analysis]. ZHONGGUO DANG DAI ER KE ZA ZHI = CHINESE JOURNAL OF CONTEMPORARY PEDIATRICS 2023; 25:51-59. [PMID: 36655664 PMCID: PMC9893828 DOI: 10.7499/j.issn.1008-8830.2208015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Accepted: 11/21/2022] [Indexed: 01/20/2023]
Abstract
OBJECTIVES To study the efficacy and safety of rituximab combined with chemotherapy in the treatment of children and adolescents with mature B-cell non-Hodgkin's lymphoma (B-NHL) through a Meta analysis. METHODS The databases including PubMed, Embase, the Cochrane Library, ClinicalTrials.gov, Web of Science, China National Knowledge Infrastructure, Wanfang Data, and Weipu were searched to obtain 10 articles on rituximab in the treatment of mature B-NHL in children and adolescents published up to June 2022, with 886 children in total. With 3-year event-free survival (EFS) rate, 3-year overall survival (OS) rate, complete remission rate, mortality rate, and incidence rate of adverse reactions as outcome measures, RevMan 5.4 software was used for Meta analysis, subgroup analysis, sensitivity analysis, and publication bias analysis. RESULTS The rituximab+chemotherapy group showed significant increases in the 3-year EFS rate (HR=0.38, 95%CI: 0.25-0.59, P<0.001), 3-year OS rate (HR=0.29, 95%CI: 0.14-0.61, P=0.001), and complete remission rate (OR=3.72, 95%CI: 1.89-7.33, P<0.001) as well as a significant reduction in the mortality rate (OR=0.31, 95%CI: 0.17-0.57, P<0.001), as compared with the chemotherapy group without rituximab. There was no significant difference in the incidence rate of adverse reactions between the two groups (OR=1.28, 95%CI: 0.85-1.92, P=0.24). CONCLUSIONS The addition of rituximab to the treatment regimen for children and adolescents with mature B-cell non-Hodgkin's lymphoma can bring significant survival benefits without increasing the incidence of adverse reactions.
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Affiliation(s)
| | - 亚辉 韩
- 郑州大学第一附属医院小儿外科,河南郑州450052
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4
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Yano H, Fujiwara Y, Hasita H, Pan C, Kai K, Niino D, Ohsawa K, Higashi M, Nosaka K, Okuno Y, Tamaru JI, Mukasa A, Matsuoka M, Komohara Y. Blocking cholesterol efflux mechanism is a potential target for anti-lymphoma therapy. Cancer Sci 2022; 113:2129-2143. [PMID: 35343027 PMCID: PMC9207360 DOI: 10.1111/cas.15349] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Revised: 03/17/2022] [Accepted: 03/23/2022] [Indexed: 11/29/2022] Open
Abstract
Cholesterol is an essential plasma membrane lipid for the maintenance of cellular homeostasis and cancer cell proliferation. Free cholesterol is harmful to cells; therefore, excessive free cholesterol must be quickly esterified by acetyl-coenzyme A:cholesterol acetyltransferase (ACAT) and exported by scavenger receptor class B member I (SR-BI) or ATP-binding cassette protein A1 (ABCA1) from specific cells such as macrophage foam cells, which contain cholesteryl ester-derived vacuoles. Many vacuoles are present in the cytoplasm of Burkitt's lymphoma cells. In this study, we observed that these "vacuoles" are often seen in high-grade lymphomas. Cell culture study using lymphoma cell lines found that esterified cholesterol is the main component of these "vacuoles." and the expression of cholesterol metabolism-related molecules was significantly upregulated in lymphoma cell lines, with SR-BI and ACAT inhibitors (BLT-1 and CI-976, respectively) impeding lymphoma cell proliferation. Cytoplasmic free cholesterol was increased by ACAT and SR-BI inhibitors, and the accumulation of free cholesterol induced lymphoma cell apoptosis via inducing endoplasmic reticulum stress. Furthermore, synergistic effects of SR-BI and ACAT inhibitors were observed in a preclinical study. SR-BI inhibitor administration suppressed lymphoma progression in a tumor-bearing mouse model, whereas ACAT inhibitor did not. Therefore, SR-BI inhibitors are potential new antilymphoma therapeutics that target cholesterol metabolism.
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Affiliation(s)
- Hiromu Yano
- Department of Cell Pathology, Graduate School of Medical Sciences, Kumamoto University, Honjo 1-1-1, Kumamoto, 860-8556, Japan
| | - Yukio Fujiwara
- Department of Cell Pathology, Graduate School of Medical Sciences, Kumamoto University, Honjo 1-1-1, Kumamoto, 860-8556, Japan
| | - Horlad Hasita
- Department of Cell Pathology, Graduate School of Medical Sciences, Kumamoto University, Honjo 1-1-1, Kumamoto, 860-8556, Japan
| | - Chang Pan
- Department of Cell Pathology, Graduate School of Medical Sciences, Kumamoto University, Honjo 1-1-1, Kumamoto, 860-8556, Japan
| | - Keitaro Kai
- Department of Neurosurgery, Graduate School of Medical Sciences, Kumamoto University, Honjo 1-1-1, Kumamoto, 860-8556, Japan
| | - Daisuke Niino
- Department of Pathology, School of Medicine, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanishi, Kitakyushu, 101-0048, Japan
| | - Kumiko Ohsawa
- Department of Pathology, Saitama Medical Center, Saitama Medical University, 1981 Kamoda, Kawagoe-shi, Saitama, 350-8550, Japan
| | - Morihiro Higashi
- Department of Pathology, Saitama Medical Center, Saitama Medical University, 1981 Kamoda, Kawagoe-shi, Saitama, 350-8550, Japan
| | - Kisato Nosaka
- Department of Hematology, Rhaumatology, and Infectious Diseases, Graduate School of Medical Sciences, Kumamoto University, Honjo 1-1-1, Kumamoto, 860-8556, Japan
| | - Yutaka Okuno
- Department of Hematology, Rhaumatology, and Infectious Diseases, Graduate School of Medical Sciences, Kumamoto University, Honjo 1-1-1, Kumamoto, 860-8556, Japan
| | - Jun-Ichi Tamaru
- Department of Pathology, Saitama Medical Center, Saitama Medical University, 1981 Kamoda, Kawagoe-shi, Saitama, 350-8550, Japan
| | - Akitake Mukasa
- Department of Neurosurgery, Graduate School of Medical Sciences, Kumamoto University, Honjo 1-1-1, Kumamoto, 860-8556, Japan
| | - Masao Matsuoka
- Department of Hematology, Rhaumatology, and Infectious Diseases, Graduate School of Medical Sciences, Kumamoto University, Honjo 1-1-1, Kumamoto, 860-8556, Japan
| | - Yoshihiro Komohara
- Department of Cell Pathology, Graduate School of Medical Sciences, Kumamoto University, Honjo 1-1-1, Kumamoto, 860-8556, Japan.,Center for Metabolic Regulation of Healthy Aging, Kumamoto University, Honjo 1-1-1, Kumamoto, 860-8556, Japan
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5
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Abstract
Epstein-Barr virus (EBV) is associated with 200,000 cancers annually, including B-cell lymphomas in immunosuppressed hosts. Hypomorphic mutations of the de novo pyrimidine synthesis pathway enzyme cytidine 5′ triphosphate synthase 1 (CTPS1) suppress cell-mediated immunity, resulting in fulminant EBV infection and EBV+ central nervous system (CNS) lymphomas. Since CTP is a critical precursor for DNA, RNA, and phospholipid synthesis, this observation raises the question of whether the isozyme CTPS2 or cytidine salvage pathways help meet CTP demand in EBV-infected B cells. Here, we found that EBV upregulated CTPS1 and CTPS2 with distinct kinetics in newly infected B cells. While CRISPR CTPS1 knockout caused DNA damage and proliferation defects in lymphoblastoid cell lines (LCLs), which express the EBV latency III program observed in CNS lymphomas, double CTPS1/2 knockout caused stronger phenotypes. EBNA2, MYC, and noncanonical NF-κB positively regulated CTPS1 expression. CTPS1 depletion impaired EBV lytic DNA synthesis, suggesting that latent EBV may drive pathogenesis with CTPS1 deficiency. Cytidine rescued CTPS1/2 deficiency phenotypes in EBV-transformed LCLs and Burkitt B cells, highlighting CTPS1/2 as a potential therapeutic target for EBV-driven lymphoproliferative disorders. Collectively, our results suggest that CTPS1 and CTPS2 have partially redundant roles in EBV-transformed B cells and provide insights into EBV pathogenesis with CTPS1 deficiency.
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6
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Mason EF, Kovach AE. Update on Pediatric and Young Adult Mature Lymphomas. Clin Lab Med 2021; 41:359-387. [PMID: 34304770 DOI: 10.1016/j.cll.2021.03.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
After acute leukemia and brain and central nervous system tumors, mature lymphomas represent the third most common cancer in pediatric patients. Non-Hodgkin lymphoma accounts for approximately 60% of lymphoma diagnoses in children, with the remainder representing Hodgkin lymphoma. Among non-Hodgkin lymphomas in pediatric patients, aggressive lymphomas, such as Burkitt lymphoma, diffuse large B-cell lymphoma, and anaplastic large cell lymphoma, predominate. This article summarizes the epidemiologic, histopathologic, and molecular features of selected mature systemic B-cell and T-cell lymphomas encountered in this age group.
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Affiliation(s)
- Emily F Mason
- Department of Pathology, Microbiology & Immunology, Vanderbilt University Medical Center, 4603A TVC, Nashville, TN 37232-5310, USA.
| | - Alexandra E Kovach
- Department of Pathology and Laboratory Medicine, Children's Hospital Los Angeles, 4650 Sunset Boulevard, Mailstop #32, Los Angeles, CA 90027, USA
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7
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Harker-Murray PD, Pommert L, Barth MJ. Novel Therapies Potentially Available for Pediatric B-Cell Non-Hodgkin Lymphoma. J Natl Compr Canc Netw 2020; 18:1125-1134. [PMID: 32755987 DOI: 10.6004/jnccn.2020.7608] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Accepted: 06/22/2020] [Indexed: 11/17/2022]
Abstract
Burkitt lymphoma, diffuse large B-cell lymphoma (DLBCL), and primary mediastinal B-cell lymphoma are the most common aggressive pediatric mature B-cell non-Hodgkin lymphomas (B-NHLs). Despite excellent survival with current chemotherapy regimens, therapy for Burkitt lymphoma and DLBCL has a high incidence of short- and long-term toxicities. Patients who experience relapse generally have a very poor prognosis. Therefore, novel approaches using targeted therapies to reduce toxicities and improve outcomes in the relapse setting are needed. The addition of rituximab, a monoclonal antibody against CD20, to upfront therapy has improved survival outcomes for high-risk patients and may allow decreased total chemotherapy in those with low-risk disease. Antibody-drug conjugates have been combined with chemotherapy in relapsed/refractory (R/R) NHL, and multiple antibody-drug conjugates are in development. Additionally, bispecific T-cell-engaging antibody constructs and autologous CAR T-cells have been successful in the treatment of R/R acute leukemias and are now being applied to R/R B-NHL with some successes. PD-L1 and PD-L2 on tumor cells can be targeted with checkpoint inhibitors, which restore T-cell-mediated immunity and antitumor responses and can be added to conventional chemotherapy and immune-directed therapies to augment responses. Lastly, trials of small molecule inhibitors targeting cell signaling pathways in NHL subtypes are underway. This article reviews many of the targeted therapies under development that could be considered for future trials in R/R pediatric mature B-NHL.
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Affiliation(s)
| | - Lauren Pommert
- Pediatric Oncology, Midwest Children's Cancer Center, Milwaukee, Wisconsin; and
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8
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Sakaguchi K, Imamura T, Ishimaru S, Imai C, Shimonodan H, Fujita N, Okada K, Taketani T, Kanai R, Tauchi H, Kato M, Kojima Y, Watanabe A, Deguchi T, Hashii Y, Kiyokawa N, Taki T, Saito AM, Horibe K, Manabe A, Sato A, Koh K. Nationwide study of pediatric B-cell precursor acute lymphoblastic leukemia with chromosome 8q24/MYC rearrangement in Japan. Pediatr Blood Cancer 2020; 67:e28341. [PMID: 32323914 DOI: 10.1002/pbc.28341] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Revised: 03/24/2020] [Accepted: 04/01/2020] [Indexed: 12/25/2022]
Abstract
BACKGROUND Rearrangements of chromosome 8q24/MYC (8q24/MYC-r), resulting from t(8;14)(q24;q32), t(2;8)(p11;q24), or t(8;22)(q24;q11), are mainly associated with Burkitt lymphoma/leukemia (BL) and rarely observed in patients with B-cell precursor acute lymphoblastic leukemia (BCP-ALL). The characteristics of BCP-ALL with 8q24/MYC-r are poorly understood. PROCEDURE A retrospective nationwide study of data from patients with pediatric BCP-ALL with 8q24/MYC-r in Japan was conducted to clarify the clinical and biological characteristics associated with 8q24/MYC-r BCP-ALL. RESULTS Ten patients with BCP-ALL with 8q24/MYC-r, including three with double-hit leukemia (DHL) (two with t(8;14)(q24;q32) and t(14;18)(q32;q21) and one with t(8;14) and t(3;22)(q27;q11)), were identified. Patients with BCP-ALL with 8q24/MYC-r had higher median age and uric acid and lactate dehydrogenase levels, than those without 8q24/MYC-r. All patients were initially treated with ALL-type chemotherapy; however, four, including one with DHL, were switched to BL-type chemotherapy, based on cytogenetic findings. One patient relapsed after standard-risk ALL-type chemotherapy, and two patients with DHL did not attain complete remission with chemotherapy; all three died within 11 months. The other seven patients treated with BL-type or high-risk ALL-type chemotherapy are alive without disease. CONCLUSIONS The clinical and laboratory features of BL with IG-MYC rearrangement, displaying a BCP immunophenotype (Wagener et al. and Herbrueggen et al. termed it as pre-BLL), are similar to those of BCP-ALL with 8q24/MYC-r. Low-risk ALL-type chemotherapy may not be appropriate for them, and further studies are required to establish an adequate therapeutic strategy. Further studies of DHL to identify new treatment strategies are also needed.
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Affiliation(s)
- Kimiyoshi Sakaguchi
- Department of Pediatrics, Hamamatsu University School of Medicine, Hamamatsu, Japan.,Clinical Research Center, National Hospital Organization Nagoya Medical Center, Nagoya, Japan
| | - Toshihiko Imamura
- Clinical Research Center, National Hospital Organization Nagoya Medical Center, Nagoya, Japan.,Department of Pediatrics, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Sae Ishimaru
- Department of Hematology and Oncology, Tokyo Metropolitan Children's Medical Center, Tokyo, Japan.,Department of Pediatric Oncology, National Cancer Center Hospital, Tokyo, Japan
| | - Chihaya Imai
- Department of Pediatrics, Niigata University, Niigata, Japan
| | - Hidemi Shimonodan
- Department of Pediatrics, Miyazaki Prefectural Miyazaki Hospital, Miyazaki, Japan
| | - Naoto Fujita
- Department of Pediatrics, Hiroshima Red Cross Hospital and Atomic-bomb Survivors Hospital, Hiroshima, Japan
| | - Keiko Okada
- Department of Pediatric Hematology/Oncology, Osaka City General Hospital, Osaka, Japan
| | - Takeshi Taketani
- Department of Pediatrics, Shimane University Faculty of Medicine, Izumo, Japan
| | - Rie Kanai
- Department of Pediatrics, Shimane University Faculty of Medicine, Izumo, Japan
| | | | - Motohiro Kato
- Division of Stem Cell Transplant and Cellular Therapy, Children's Cancer Center, National Center for Child Health and Development, Tokyo, Japan
| | - Yasuko Kojima
- Department of Pediatrics, Toho University Omori Medical Center, Tokyo, Japan
| | - Arata Watanabe
- Department of Pediatrics, Nakadori General Hospital, Akita, Japan
| | - Takao Deguchi
- Department of Pediatrics, Mie University, Tsu, Japan
| | - Yoshiko Hashii
- Department of Pediatrics, Osaka University, Suita, Japan
| | - Nobutaka Kiyokawa
- Department of Pediatric Hematology and Oncology Research, Research Institute, National Center for Child Health and Development, Tokyo, Japan
| | - Tomohiko Taki
- Department of Medical Technology, Kyorin University Faculty of Health Sciences, Mitaka, Japan
| | - Akiko M Saito
- Clinical Research Center, National Hospital Organization Nagoya Medical Center, Nagoya, Japan
| | - Keizo Horibe
- Clinical Research Center, National Hospital Organization Nagoya Medical Center, Nagoya, Japan
| | - Atsushi Manabe
- Department of Pediatrics, Hokkaido University Graduate School of Medicine, Sapporo, Japan
| | - Atsushi Sato
- Department of Hematology/Oncology, Miyagi Children's Hospital, Sendai, Japan
| | - Katsuyoshi Koh
- Department of Hematology/Oncology, Saitama Children's Medical Center, Saitama, Japan
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9
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Cairo MS, Beishuizen A. Childhood, adolescent and young adult non-Hodgkin lymphoma: current perspectives. Br J Haematol 2019; 185:1021-1042. [PMID: 30729513 PMCID: PMC6897376 DOI: 10.1111/bjh.15764] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The 6th International Symposium on Childhood, Adolescent and Young Adult (CAYA) Non-Hodgkin Lymphoma (NHL) was held in Rotterdam, Netherlands, 26-29 September, 2018. This summary manuscript is a perspective on the presentations from the plenary scientific sessions, including wellness and survivorship, B-cell NHL, AYA lymphoma, translational NHL biology, lymphoma immunology, bone marrow transplantation and cell therapy, T/Natural Killer cell lymphoma, anaplastic large cell lymphoma, lymphoblastic lymphoma, novel lymphoma therapeutics and Hodgkin lymphoma. The symposium was attended by over 260 registrants from 42 different countries and included young, middle and senior investigators. Finally, the Angelo Rosolen, MD, Memorial Lecture was delivered by Alfred Reiter, MD.
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Affiliation(s)
- Mitchell S. Cairo
- Departments of Pediatrics, Medicine, Pathology, Microbiology& Immunology, and Cell Biology & Anatomy, New York Medical College, Valhalla, NY, USA
| | - Auke Beishuizen
- Division of Paediatric Haemato-Oncology, Princess Maxima Centre for Paediatric Oncology, Utrecht
- Department of Paediatric Oncology/Haematology, Erasmus MC - Sophia Children’s Hospital, Rotterdam, The Netherlands
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10
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Giulino-Roth L, van Besien HJ, Dalton T, Totonchy JE, Rodina A, Taldone T, Bolaender A, Erdjument-Bromage H, Sadek J, Chadburn A, Barth MJ, Dela Cruz FS, Rainey A, Kung AL, Chiosis G, Cesarman E. Inhibition of Hsp90 Suppresses PI3K/AKT/mTOR Signaling and Has Antitumor Activity in Burkitt Lymphoma. Mol Cancer Ther 2017; 16:1779-1790. [PMID: 28619753 DOI: 10.1158/1535-7163.mct-16-0848] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2016] [Revised: 05/08/2017] [Accepted: 06/08/2017] [Indexed: 12/15/2022]
Abstract
Hsp90 is a molecular chaperone that protects proteins, including oncogenic signaling complexes, from proteolytic degradation. PU-H71 is a next-generation Hsp90 inhibitor that preferentially targets the functionally distinct pool of Hsp90 present in tumor cells. Tumors that are driven by the MYC oncoprotein may be particularly sensitive to PU-H71 due to the essential role of Hsp90 in the epichaperome, which maintains the malignant phenotype in the setting of MYC. Burkitt lymphoma (BL) is an aggressive B-cell lymphoma characterized by MYC dysregulation. In this study, we evaluated Hsp90 as a potential therapeutic target in BL. We found that primary BL tumors overexpress Hsp90 and that Hsp90 inhibition has antitumor activity in vitro and in vivo, including potent activity in a patient-derived xenograft model of BL. To evaluate the targets of PU-H71 in BL, we performed high-affinity capture followed by proteomic analysis using mass spectrometry. We found that Hsp90 inhibition targets multiple components of PI3K/AKT/mTOR signaling, highlighting the importance of this pathway in BL. Finally, we found that the anti-lymphoma activity of PU-H71 is synergistic with dual PI3K/mTOR inhibition in vitro and in vivo Overall, this work provides support for Hsp90 as a therapeutic target in BL and suggests the potential for combination therapy with PU-H71 and inhibitors of PI3K/mTOR. Mol Cancer Ther; 16(9); 1779-90. ©2017 AACR.
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Affiliation(s)
- Lisa Giulino-Roth
- Department of Pediatrics, Weill Cornell Medical College, New York, New York. .,Department of Pathology and Laboratory Medicine, Weill Cornell Medical College, New York, New York
| | - Herman J van Besien
- Department of Pathology and Laboratory Medicine, Weill Cornell Medical College, New York, New York
| | - Tanner Dalton
- Department of Pathology and Laboratory Medicine, Weill Cornell Medical College, New York, New York
| | - Jennifer E Totonchy
- Department of Pathology and Laboratory Medicine, Weill Cornell Medical College, New York, New York
| | - Anna Rodina
- Program in Chemical Biology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Tony Taldone
- Program in Chemical Biology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Alexander Bolaender
- Program in Chemical Biology, Memorial Sloan Kettering Cancer Center, New York, New York
| | | | - Jouliana Sadek
- Department of Pathology and Laboratory Medicine, Weill Cornell Medical College, New York, New York
| | - Amy Chadburn
- Department of Pathology and Laboratory Medicine, Weill Cornell Medical College, New York, New York
| | - Matthew J Barth
- Department of Pediatrics, Roswell Park Cancer Institute, Buffalo, New York
| | - Filemon S Dela Cruz
- Department of Pediatrics, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Allison Rainey
- Department of Pediatrics, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Andrew L Kung
- Department of Pediatrics, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Gabriela Chiosis
- Program in Chemical Biology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Ethel Cesarman
- Department of Pathology and Laboratory Medicine, Weill Cornell Medical College, New York, New York
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11
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Erratum. Br J Haematol 2016; 175:547. [DOI: 10.1111/bjh.14409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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12
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Poirel HA, Vikkula M. Age-related heterogeneity of Burkitt lymphoma: response to Mbulaiteye and Anderson. Br J Haematol 2016; 180:155-156. [PMID: 27612331 DOI: 10.1111/bjh.14309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Hélène A Poirel
- Centre for Human Genetics, Cliniques universitaires Saint-Luc - Université catholique de Louvain, Brussels, Belgium.,Human Molecular Genetics (GEHU), de Duve Institute - Université catholique de Louvain, Brussels, Belgium
| | - Miikka Vikkula
- Human Molecular Genetics (GEHU), de Duve Institute - Université catholique de Louvain, Brussels, Belgium
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