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Zhang X, Cong X, Jin X, Liu Y, Zhang T, Fan X, Shi X, Zhang X, Wang X, Yang YG, Dai X. Deficiency of BAP1 inhibits neuroblastoma tumorigenesis through destabilization of MYCN. Cell Death Dis 2023; 14:504. [PMID: 37543638 PMCID: PMC10404282 DOI: 10.1038/s41419-023-06030-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 07/17/2023] [Accepted: 07/31/2023] [Indexed: 08/07/2023]
Abstract
The transcription factor MYCN is frequently amplified and overexpressed in a variety of cancers including high-risk neuroblastoma (NB) and promotes tumor cell proliferation, survival, and migration. Therefore, MYCN is being pursued as an attractive therapeutic target for selective inhibition of its upstream regulators because MYCN is considered a "undruggable" target. Thus, it is important to explore the upstream regulators for the transcription and post-translational modification of MYCN. Here, we report that BRCA1-associated protein-1 (BAP1) promotes deubiquitination and subsequent stabilization of MYCN by directly binding to MYCN protein. Furthermore, BAP1 knockdown inhibits NB tumor cells growth and migration in vitro and in vivo, which can be rescued partially by ectopic expression of MYCN. Importantly, depletion of BAP1 confers cellular resistance to bromodomain and extraterminal (BET) protein inhibitor JQ1 and Aurora A kinase inhibitor Alisertib. Furthermore, IHC results of NB tissue array confirmed the positive correlation between BAP1 and MYCN protein. Altogether, our work not only uncovers an oncogenic function of BAP1 by stabilizing MYCN, but also reveals a critical mechanism for the post-translational regulation of MYCN in NB. Our findings further indicate that BAP1 could be a potential therapeutic target for MYCN-amplified neuroblastoma.
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Affiliation(s)
- Xiaoling Zhang
- Key Laboratory of Organ Regeneration and Transplantation of Ministry of Education, First Hospital, Jilin University, Changchun, China.
- National-Local Joint Engineering Laboratory of Animal Models for Human Disease, First Hospital, Jilin University, Changchun, China.
| | - Xianling Cong
- Department of Dermatology, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Xiangting Jin
- Key Laboratory of Organ Regeneration and Transplantation of Ministry of Education, First Hospital, Jilin University, Changchun, China
- National-Local Joint Engineering Laboratory of Animal Models for Human Disease, First Hospital, Jilin University, Changchun, China
| | - Yu'e Liu
- Tongji University Cancer Center, Shanghai Tenth People's Hospital of Tongji University, School of Medicine, Tongji University, Shanghai, China
| | - Tong Zhang
- Key Laboratory of Organ Regeneration and Transplantation of Ministry of Education, First Hospital, Jilin University, Changchun, China
- National-Local Joint Engineering Laboratory of Animal Models for Human Disease, First Hospital, Jilin University, Changchun, China
| | - Xinyuan Fan
- Key Laboratory of Organ Regeneration and Transplantation of Ministry of Education, First Hospital, Jilin University, Changchun, China
- National-Local Joint Engineering Laboratory of Animal Models for Human Disease, First Hospital, Jilin University, Changchun, China
| | - Xiyao Shi
- Key Laboratory of Organ Regeneration and Transplantation of Ministry of Education, First Hospital, Jilin University, Changchun, China
- National-Local Joint Engineering Laboratory of Animal Models for Human Disease, First Hospital, Jilin University, Changchun, China
| | - Xiaoying Zhang
- Key Laboratory of Organ Regeneration and Transplantation of Ministry of Education, First Hospital, Jilin University, Changchun, China
- National-Local Joint Engineering Laboratory of Animal Models for Human Disease, First Hospital, Jilin University, Changchun, China
| | - Xue Wang
- Key Laboratory of Organ Regeneration and Transplantation of Ministry of Education, First Hospital, Jilin University, Changchun, China
- National-Local Joint Engineering Laboratory of Animal Models for Human Disease, First Hospital, Jilin University, Changchun, China
| | - Yong-Guang Yang
- Key Laboratory of Organ Regeneration and Transplantation of Ministry of Education, First Hospital, Jilin University, Changchun, China.
- National-Local Joint Engineering Laboratory of Animal Models for Human Disease, First Hospital, Jilin University, Changchun, China.
- International Center of Future Science, Jilin University, Changchun, China.
| | - Xiangpeng Dai
- Key Laboratory of Organ Regeneration and Transplantation of Ministry of Education, First Hospital, Jilin University, Changchun, China.
- National-Local Joint Engineering Laboratory of Animal Models for Human Disease, First Hospital, Jilin University, Changchun, China.
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Han R, Zhao W, Gu X, Gao X, Yang YG, Zhang X. Different tumorigenicity and distinct metastasis and gene signature between orthotopic and subcutaneous neuroblastoma xenografted mice. Aging (Albany NY) 2022; 14:1932-1940. [PMID: 35197367 PMCID: PMC8908914 DOI: 10.18632/aging.203913] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2021] [Accepted: 02/15/2022] [Indexed: 11/25/2022]
Abstract
Patient-derived (PDX) and cell-derived (CDX) xenograft models are widely used in preclinical studies of human neuroblastoma. In this study, we constructed orthotopic and subcutaneous neuroblastoma CDX models by injecting human neuroblastoma cells into the adrenal gland and the flanks of immunodeficient mice, respectively. The tumorigenesis, metastasis and response to chemotherapy for the two models were also compared. Our results indicated that orthotopic tumor mice showed significantly faster tumor growth than that of subcutaneous mice. Importantly, the expression of PHOX2B and GAB2 was dramatically increased in the tumors of orthotopic CDX mice. Furthermore, orthotopic CDX mice developed multiple organ metastasis resembling that of neuroblastoma patients, while metastasis occurred predominantly in lung in subcutaneous CDX mice. Moreover, the two CDX models showed comparable response to cyclophosphamide treatment. Our results suggest that orthotopic CDX mice are superior to subcutaneous CDX mice as a preclinical model to study human neuroblastoma.
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Affiliation(s)
- Rui Han
- Key Laboratory of Organ Regeneration and Transplantation of Ministry of Education, The First Hospital of Jilin University, Changchun, China.,National-Local Joint Engineering Laboratory of Animal Models for Human Diseases, Changchun, China
| | - Wenjie Zhao
- Key Laboratory of Organ Regeneration and Transplantation of Ministry of Education, The First Hospital of Jilin University, Changchun, China.,National-Local Joint Engineering Laboratory of Animal Models for Human Diseases, Changchun, China
| | - Xu Gu
- Key Laboratory of Organ Regeneration and Transplantation of Ministry of Education, The First Hospital of Jilin University, Changchun, China.,National-Local Joint Engineering Laboratory of Animal Models for Human Diseases, Changchun, China
| | - Xue Gao
- Key Laboratory of Organ Regeneration and Transplantation of Ministry of Education, The First Hospital of Jilin University, Changchun, China.,National-Local Joint Engineering Laboratory of Animal Models for Human Diseases, Changchun, China
| | - Yong-Guang Yang
- Key Laboratory of Organ Regeneration and Transplantation of Ministry of Education, The First Hospital of Jilin University, Changchun, China.,National-Local Joint Engineering Laboratory of Animal Models for Human Diseases, Changchun, China.,International Center of Future Science, Jilin University, Changchun, China
| | - Xiaoling Zhang
- Key Laboratory of Organ Regeneration and Transplantation of Ministry of Education, The First Hospital of Jilin University, Changchun, China.,National-Local Joint Engineering Laboratory of Animal Models for Human Diseases, Changchun, China
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Berbegall AP, Villamón E, Tadeo I, Martinsson T, Cañete A, Castel V, Navarro S, Noguera R. Neuroblastoma after childhood: prognostic relevance of segmental chromosome aberrations, ATRX protein status, and immune cell infiltration. Neoplasia 2015; 16:471-80. [PMID: 25077701 PMCID: PMC4198743 DOI: 10.1016/j.neo.2014.05.012] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2014] [Revised: 05/09/2014] [Accepted: 05/16/2014] [Indexed: 01/08/2023] Open
Abstract
Neuroblastoma (NB) is a common malignancy in children but rarely occurs during adolescence or adulthood. This subgroup is characterized by an indolent disease course, almost uniformly fatal, yet little is known about the biologic characteristics. The aim of this study was to identify differential features regarding DNA copy number alterations, α-thalassemia/mental retardation syndrome X-linked (ATRX) protein expression, and the presence of tumor-associated inflammatory cells. Thirty-one NB patients older than 10 years who were included in the Spanish NB Registry were considered for the current study; seven young and middle-aged adult patients (range 18-60 years) formed part of the cohort. We performed single nucleotide polymorphism arrays, immunohistochemistry for immune markers (CD4, CD8, CD20, CD11b, CD11c, and CD68), and ATRX protein expression. Assorted genetic profiles were found with a predominant presence of a segmental chromosome aberration (SCA) profile. Preadolescent and adolescent NB tumors showed a higher number of SCA, including 17q gain and 11q deletion. There was also a marked infiltration of immune cells, mainly high and heterogeneous, in young and middle-aged adult tumors. ATRX negative expression was present in the tumors. The characteristics of preadolescent, adolescent, young adult, and middle-aged adult NB tumors are different, not only from childhood NB tumors but also from each other. Similar examinations of a larger number of such tumor tissues from cooperative groups should lead to a better older age–dependent tumor pattern and to innovative, individual risk-adapted therapeutic approaches for these patients.
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Affiliation(s)
- Ana P Berbegall
- Pathology Department, Medical School, University of Valencia, INCLIVA, Valencia, Spain; Medical Research Foundation INCLIVA, Hospital Clínico, INCLIVA, Valencia, Spain
| | - Eva Villamón
- Pathology Department, Medical School, University of Valencia, INCLIVA, Valencia, Spain
| | - Irene Tadeo
- Pathology Department, Medical School, University of Valencia, INCLIVA, Valencia, Spain; Medical Research Foundation INCLIVA, Hospital Clínico, INCLIVA, Valencia, Spain
| | - Tommy Martinsson
- Department of Clinical Genetics, Göteborg University, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Adela Cañete
- Pediatric Oncology Unit, Hospital Universitario y Politécnico La Fe, Valencia, Spain
| | - Victoria Castel
- Pediatric Oncology Unit, Hospital Universitario y Politécnico La Fe, Valencia, Spain
| | - Samuel Navarro
- Pathology Department, Medical School, University of Valencia, INCLIVA, Valencia, Spain
| | - Rosa Noguera
- Pathology Department, Medical School, University of Valencia, INCLIVA, Valencia, Spain.
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