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Xu W, Ma W, Wang D, Zhou X, Wang K, Mu K. Integrated multi-omics profiling reveals a clinically relevant molecular feature and potential therapeutic target on phyllodes tumors of breast. Transl Oncol 2024; 46:101998. [PMID: 38761630 PMCID: PMC11112002 DOI: 10.1016/j.tranon.2024.101998] [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: 12/29/2023] [Revised: 04/19/2024] [Accepted: 05/13/2024] [Indexed: 05/20/2024] Open
Abstract
Phyllodes tumors (PTs) has an increased risk of local relapse and distant metastases. Molecular features correlating to histologic grade and aggressive behavior of PTs are poorly characterized. Here, whole exome sequencing (WES) was performed to explore genetic mutations in 61 samples of fibroepithelial breast tumors, including 16 fibroadenomas (FAs), 18 benign PTs, 19 borderline PTs, and 8 malignant PTs. Our work clearly shows that FA, benign PT, borderline PT, and malignant PT are independent entities at the genomic level. They may exist as hidden sub-clones carrying specific genetic alterations. Malignant PT-specific mutations present a multi-gene co-mutational pattern suggesting a synergistic effect of co-mutated genes in processes associated with malignant behavior. Moreover, we made a combined genomic and transcriptomic analysis, which presented a mutated gene-based interaction with expression profiles. We found that EGFR mutations (c.710C > T, c.758A > G, c.1295A > G, and c.2156G > C) serve as a hub of interaction network in borderline PTs, which suggests EGFR tyrosine kinase inhibitors (EGFRi) might be effective for borderline PTs. We found TP53 mutations (c.730G > T, c.844C > T, and c.1019delA) serves as a hub event of molecular changes of malignant PTs. Thus, our study based on the omics platforms of genome and transcriptome provides a better understanding of relapse process and the potential targeted therapy in PTs, which is pivotal in improving molecular-guided patient selection and designing clinically relevant combination strategies.
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Affiliation(s)
- Wei Xu
- Department of Pathology, School of Basic Medical Sciences, Shandong University, Jinan, 250012, China; Department of Oncology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan 250021, China
| | - Wei Ma
- Department of Pathology, School of Basic Medical Sciences, Shandong University, Jinan, 250012, China
| | - Depeng Wang
- Department of Pathology, First Affiliated Hospital of Weifang Medical University (Weifang People's Hospital), Weifang, 261000, China
| | - Xingchen Zhou
- Department of Pathology, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan 250021, China
| | - Kangyu Wang
- Department of Oncology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan 250021, China
| | - Kun Mu
- Department of Pathology, School of Basic Medical Sciences, Shandong University, Jinan, 250012, China; Department of Pathology, Qilu Hospital of Shandong University, Jinan, 250012, China.
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Kaushal JB, Takkar S, Batra SK, Siddiqui JA. Diverse landscape of genetically engineered mouse models: Genomic and molecular insights into prostate cancer. Cancer Lett 2024; 593:216954. [PMID: 38735382 DOI: 10.1016/j.canlet.2024.216954] [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: 12/20/2023] [Revised: 04/26/2024] [Accepted: 05/08/2024] [Indexed: 05/14/2024]
Abstract
Prostate cancer (PCa) is a significant health concern for men worldwide and is particularly prevalent in the United States. It is a complex disease presenting different molecular subtypes and varying degrees of aggressiveness. Transgenic/genetically engineered mouse models (GEMMs) greatly enhanced our understanding of the intricate molecular processes that underlie PCa progression and have offered valuable insights into potential therapeutic targets for this disease. The integration of whole-exome and whole-genome sequencing, along with expression profiling, has played a pivotal role in advancing GEMMs by facilitating the identification of genetic alterations driving PCa development. This review focuses on genetically modified mice classified into the first and second generations of PCa models. We summarize whether models created by manipulating the function of specific genes replicate the consequences of genomic alterations observed in human PCa, including early and later disease stages. We discuss cases where GEMMs did not fully exhibit the expected human PCa phenotypes and possible causes of the failure. Here, we summarize the comprehensive understanding, recent advances, strengths and limitations of the GEMMs in advancing our insights into PCa, offering genetic and molecular perspectives for developing novel GEMM models.
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Affiliation(s)
- Jyoti B Kaushal
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE-68198, USA
| | - Simran Takkar
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE-68198, USA
| | - Surinder K Batra
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE-68198, USA; Fred and Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE-68198, USA; Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, NE-68198, USA.
| | - Jawed A Siddiqui
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE-68198, USA; Fred and Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE-68198, USA.
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Schwartz CJ, Marra A, Selenica P, Gazzo A, Tan K, Ross D, Razavi P, Chandarlapaty S, Weigelt B, Reis-Filho JS, Brogi E, Pareja F, Wen HY. RB1 genetic alterations in estrogen receptor-positive breast carcinomas: Correlation with neuroendocrine differentiation. Mod Pathol 2024:100541. [PMID: 38897452 DOI: 10.1016/j.modpat.2024.100541] [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: 04/11/2024] [Revised: 05/28/2024] [Accepted: 06/04/2024] [Indexed: 06/21/2024]
Abstract
Genetic alterations in the retinoblastoma susceptibility gene (RB1) are present in up to 40% of triple-negative breast cancers (BCs) and frequent in tumors with neuroendocrine differentiation, including small cell neuroendocrine carcinoma. Data on RB1 genetic alterations in estrogen receptor (ER)-positive BCs is scarce. In this study, we sought to define the morphologic, immunohistochemical and genetic features of ER-positive BCs harboring somatic alterations in RB1, with emphasis on neuroendocrine differentiation. ER-positive BCs with pathogenic RB1 genetic alterations were identified in less than 1% of cases from a cohort of 6,026 BCs previously subjected to targeted next-generation sequencing, including 23 primary BCs (pBCs) and 32 recurrent/metastatic BCs (mBCs). In cases where loss of heterozygosity (LOH) of the wild type RB1 allele could be assessed (93%, 51/55), most pBCs (82%, 18/22) and mBCs (90%, 26/29) exhibited biallelic RB1 inactivation, primarily through loss-of-function mutation and LOH (98%, 43/44). Upon histologic review, a subset of RB1-altered tumors exhibited neuroendocrine morphology (13%, 7/55), which correlated with expression of neuroendocrine markers (39%, 9/23) in both pBC (27%, 3/11) and mBCs (50%, 6/12). Loss of Rb protein expression was observed in BCs with biallelic RB1 loss only, with similar frequency in pBCs (82%, 9/11) and mBCs (75%, 9/12). All cases with neuroendocrine marker expression (n=9) and/or neuroendocrine morphology (n=7) harbored biallelic genetic inactivation of RB1 and exhibited Rb loss of expression. TP53 (53%, 29/55) and PIK3CA (45%, 25/55) were the most frequently co-mutated genes across the cohort. Overall, these findings suggest that ER-positive BCs with biallelic RB1 genetic alterations frequently exhibit Rb protein loss, which correlates with neuroendocrine differentiation in select BCs. This study provides insights into the molecular and phenotypic heterogeneity of BCs with RB1 genetic inactivation, underscoring the need for further research into the potential clinical implications associated with these tumors.
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Affiliation(s)
- Christopher J Schwartz
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY USA.
| | - Antonio Marra
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY USA
| | - Pier Selenica
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY USA
| | - Andrea Gazzo
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY USA
| | - Kiki Tan
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY USA
| | - Dara Ross
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY USA
| | - Pedram Razavi
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY USA
| | - Sarat Chandarlapaty
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY USA
| | - Britta Weigelt
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY USA
| | - Jorge S Reis-Filho
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY USA
| | - Edi Brogi
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY USA
| | - Fresia Pareja
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY USA
| | - Hannah Y Wen
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY USA
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Shi Y, Kang X, Ge Y, Cao Y, Li Y, Guo X, Chen W, Guo S, Wang Y, Liu D, Wang Y, Xing H, Xia Y, Li J, Wu J, Liang T, Wang H, Liu Q, Jin S, Qu T, Li H, Yang T, Zhang K, Feng F, Wang Y, You H, Ma W. The molecular signature and prognosis of glioma with preoperative intratumoral hemorrhage: a retrospective cohort analysis. BMC Neurol 2024; 24:202. [PMID: 38877400 PMCID: PMC11177380 DOI: 10.1186/s12883-024-03703-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2023] [Accepted: 05/31/2024] [Indexed: 06/16/2024] Open
Abstract
BACKGROUND Intratumoral hemorrhage, though less common, could be the first clinical manifestation of glioma and is detectable via MRI; however, its exact impacts on patient outcomes remain unclear and controversial. The 2021 WHO CNS 5 classification emphasised genetic and molecular features, initiating the necessity to establish the correlation between hemorrhage and molecular alterations. This study aims to determine the prevalence of intratumoral hemorrhage in glioma subtypes and identify associated molecular and clinical characteristics to improve patient management. METHODS Integrated clinical data and imaging studies of patients who underwent surgery at the Department of Neurosurgery at Peking Union Medical College Hospital from January 2011 to January 2022 with pathological confirmation of glioma were retrospectively reviewed. Patients were divided into hemorrhage and non-hemorrhage groups based on preoperative magnetic resonance imaging. A comparison and survival analysis were conducted with the two groups. In terms of subgroup analysis, we classified patients into astrocytoma, IDH-mutant; oligodendroglioma, IDH-mutant, 1p/19q-codeleted; glioblastoma, IDH-wildtype; pediatric-type gliomas; or circumscribed glioma using integrated histological and molecular characteristics, according to WHO CNS 5 classifications. RESULTS 457 patients were enrolled in the analysis, including 67 (14.7%) patients with intratumoral hemorrhage. The hemorrhage group was significantly older and had worse preoperative Karnofsky performance scores. The hemorrhage group had a higher occurrence of neurological impairment and a higher Ki-67 index. Molecular analysis indicated that CDKN2B, KMT5B, and PIK3CA alteration occurred more in the hemorrhage group (CDKN2B, 84.4% vs. 62.2%, p = 0.029; KMT5B, 25.0% vs. 8.9%, p = 0.029; and PIK3CA, 81.3% vs. 58.5%, p = 0.029). Survival analysis showed significantly worse prognoses for the hemorrhage group (hemorrhage 18.4 months vs. non-hemorrhage 39.1 months, p = 0.01). In subgroup analysis, the multivariate analysis showed that intra-tumoral hemorrhage is an independent risk factor only in glioblastoma, IDH-wildtype (162 cases of 457 overall, HR = 1.72, p = 0.026), but not in other types of gliomas. The molecular alteration of CDK6 (hemorrhage group p = 0.004, non-hemorrhage group p < 0.001), EGFR (hemorrhage group p = 0.003, non-hemorrhage group p = 0.001), and FGFR2 (hemorrhage group p = 0.007, non-hemorrhage group p = 0.001) was associated with shorter overall survival time in both hemorrhage and non-hemorrhage groups. CONCLUSIONS Glioma patients with preoperative intratumoral hemorrhage had unfavorable prognoses compared to their nonhemorrhage counterparts. CDKN2B, KMT5B, and PIK3CA alterations were associated with an increased occurrence of intratumoral hemorrhage, which might be future targets for further investigation of intratumoral hemorrhage.
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Affiliation(s)
- Yixin Shi
- Department of Neurosurgery, Center for Malignant Brain Tumors, Peking Union Medical College Hospital, National Glioma MDT Alliance, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
- Eight-year Medical Doctor Program, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
| | - Xiaoman Kang
- Department of Neurosurgery, Center for Malignant Brain Tumors, Peking Union Medical College Hospital, National Glioma MDT Alliance, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
- '4+4' Medical Doctor Program, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
| | - Yulu Ge
- Department of Neurosurgery, Center for Malignant Brain Tumors, Peking Union Medical College Hospital, National Glioma MDT Alliance, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
- Eight-year Medical Doctor Program, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
| | - Yaning Cao
- Department of Neurosurgery, Center for Malignant Brain Tumors, Peking Union Medical College Hospital, National Glioma MDT Alliance, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
- Eight-year Medical Doctor Program, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
| | - Yilin Li
- Department of Neurosurgery, Center for Malignant Brain Tumors, Peking Union Medical College Hospital, National Glioma MDT Alliance, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
- '4+4' Medical Doctor Program, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
| | - Xiaopeng Guo
- Department of Neurosurgery, Center for Malignant Brain Tumors, Peking Union Medical College Hospital, National Glioma MDT Alliance, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
- China Anti-Cancer Association Specialty Committee of Glioma, Beijing, 100730, China
| | - Wenlin Chen
- Department of Neurosurgery, Center for Malignant Brain Tumors, Peking Union Medical College Hospital, National Glioma MDT Alliance, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
| | - Siying Guo
- Department of Neurosurgery, Center for Malignant Brain Tumors, Peking Union Medical College Hospital, National Glioma MDT Alliance, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
- Eight-year Medical Doctor Program, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
| | - Yaning Wang
- Department of Neurosurgery, Center for Malignant Brain Tumors, Peking Union Medical College Hospital, National Glioma MDT Alliance, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
| | - Delin Liu
- Department of Neurosurgery, Center for Malignant Brain Tumors, Peking Union Medical College Hospital, National Glioma MDT Alliance, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
- Eight-year Medical Doctor Program, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
| | - Yuekun Wang
- Department of Neurosurgery, Center for Malignant Brain Tumors, Peking Union Medical College Hospital, National Glioma MDT Alliance, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
| | - Hao Xing
- Department of Neurosurgery, Center for Malignant Brain Tumors, Peking Union Medical College Hospital, National Glioma MDT Alliance, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
| | - Yu Xia
- Department of Neurosurgery, Center for Malignant Brain Tumors, Peking Union Medical College Hospital, National Glioma MDT Alliance, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
- Eight-year Medical Doctor Program, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
| | - Junlin Li
- Department of Neurosurgery, Center for Malignant Brain Tumors, Peking Union Medical College Hospital, National Glioma MDT Alliance, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
- Eight-year Medical Doctor Program, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
| | - Jiaming Wu
- Department of Neurosurgery, Center for Malignant Brain Tumors, Peking Union Medical College Hospital, National Glioma MDT Alliance, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
- Eight-year Medical Doctor Program, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
| | - Tingyu Liang
- Department of Neurosurgery, Center for Malignant Brain Tumors, Peking Union Medical College Hospital, National Glioma MDT Alliance, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
| | - Hai Wang
- Department of Neurosurgery, Center for Malignant Brain Tumors, Peking Union Medical College Hospital, National Glioma MDT Alliance, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
| | - Qianshu Liu
- Department of Neurosurgery, Center for Malignant Brain Tumors, Peking Union Medical College Hospital, National Glioma MDT Alliance, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
- Eight-year Medical Doctor Program, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
| | - Shanmu Jin
- Department of Neurosurgery, Center for Malignant Brain Tumors, Peking Union Medical College Hospital, National Glioma MDT Alliance, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
- '4+4' Medical Doctor Program, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
| | - Tian Qu
- Department of Neurosurgery, Center for Malignant Brain Tumors, Peking Union Medical College Hospital, National Glioma MDT Alliance, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
- Eight-year Medical Doctor Program, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
| | - Huanzhang Li
- Department of Neurosurgery, Center for Malignant Brain Tumors, Peking Union Medical College Hospital, National Glioma MDT Alliance, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
- Eight-year Medical Doctor Program, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
| | - Tianrui Yang
- Department of Neurosurgery, Center for Malignant Brain Tumors, Peking Union Medical College Hospital, National Glioma MDT Alliance, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
- Eight-year Medical Doctor Program, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
| | - Kun Zhang
- Department of Neurosurgery, Center for Malignant Brain Tumors, Peking Union Medical College Hospital, National Glioma MDT Alliance, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
- Eight-year Medical Doctor Program, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
| | - Feng Feng
- Department of Radiology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, 100730, China
| | - Yu Wang
- Department of Neurosurgery, Center for Malignant Brain Tumors, Peking Union Medical College Hospital, National Glioma MDT Alliance, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China.
- China Anti-Cancer Association Specialty Committee of Glioma, Beijing, 100730, China.
| | - Hui You
- Department of Radiology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, 100730, China.
| | - Wenbin Ma
- Department of Neurosurgery, Center for Malignant Brain Tumors, Peking Union Medical College Hospital, National Glioma MDT Alliance, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China.
- China Anti-Cancer Association Specialty Committee of Glioma, Beijing, 100730, China.
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Chen L, Sun Q, Yue R, Yan H, Huang X, Yu H, Yang Y. Involvement of E3 ubiquitin ligase NEDD4-mediated YY1 ubiquitination in alleviating idiopathic pulmonary fibrosis. Int J Biol Macromol 2024; 269:131976. [PMID: 38697427 DOI: 10.1016/j.ijbiomac.2024.131976] [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: 12/08/2023] [Revised: 04/20/2024] [Accepted: 04/28/2024] [Indexed: 05/05/2024]
Abstract
Idiopathic pulmonary fibrosis (IPF) is a chronic and lethal lung disease characterized by progressive lung scarring. This study aims to elucidate the role of the E3 ubiquitin ligase NEDD4 in the ubiquitination of YY1 and its subsequent impact on TAB1 transcription, revealing a possible molecular mechanism in the development of IPF. Through bioinformatics analysis and both in vitro and in vivo experiments, we observed differential expression levels of NEDD4 and YY1 between normal and IPF samples, identifying NEDD4 as an upstream E3 ubiquitin ligase of YY1. Furthermore, binding sites for the transcription factor YY1 on the promoter region of TAB1 were discovered, indicating a direct interaction. In vitro experiments using HEPF cells showed that NEDD4 mediates the ubiquitination and degradation of YY1, leading to suppressed TAB1 transcription, thereby inhibiting cell proliferation and fibrogenesis. These findings were corroborated by in vivo experiments in an IPF mouse model, where the ubiquitination pathway facilitated by NEDD4 attenuated IPF progression through the downregulation of YY1 and TAB1 transcription. These results suggest that NEDD4 plays a crucial role in the development of IPF by modulating YY1 ubiquitination and TAB1 transcription, providing new insights into potential therapeutic targets for treating IPF.
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Affiliation(s)
- Lin Chen
- Department of Pulmonary and Critical Care Medicine, Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu 610072, PR China
| | - Qingxiang Sun
- Department of Pulmonary and Critical Care Medicine, Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu 610072, PR China
| | - Ruiming Yue
- Department of Intensive Care Unit, Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu 610072, PR China
| | - Haiying Yan
- Department of Pulmonary and Critical Care Medicine, Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu 610072, PR China
| | - Xiaobo Huang
- Department of Intensive Care Unit, Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu 610072, PR China
| | - Hua Yu
- Department of Laboratory Medicine, Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu 610072, PR China
| | - Yang Yang
- Department of Pulmonary and Critical Care Medicine, Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu 610072, PR China.
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Aughey G, Cali E, Maroofian R, Zaki MS, Pagnamenta AT, Rahman F, Menzies L, Shafique A, Suri M, Roze E, Aguennouz M, Ghizlane Z, Saadi SM, Ali Z, Abdulllah U, Cheema HA, Anjum MN, Morel G, McFarland R, Altunoglu U, Kraus V, Shoukier M, Murphy D, Flemming K, Yttervik H, Rhouda H, Lesca G, Murtaza BN, Rehman MU, Consortium GE, Seo GH, Beetz C, Kayserili H, Krioulie Y, Chung WK, Naz S, Maqbool S, Gleeson J, Baig SM, Efthymiou S, Taylor JC, Severino M, Jepson JE, Houlden H. Clinical and neurogenetic characterisation of autosomal recessive RBL2-associated progressive neurodevelopmental disorder. MEDRXIV : THE PREPRINT SERVER FOR HEALTH SCIENCES 2024:2024.05.03.24306631. [PMID: 38746364 PMCID: PMC11092723 DOI: 10.1101/2024.05.03.24306631] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2024]
Abstract
Retinoblastoma (RB) proteins are highly conserved transcriptional regulators that play important roles during development by regulating cell-cycle gene expression. RBL2 dysfunction has been linked to a severe neurodevelopmental disorder. However, to date, clinical features have only been described in six individuals carrying five biallelic predicted loss of function (pLOF) variants. To define the phenotypic effects of RBL2 mutations in detail, we identified and clinically characterized a cohort of 28 patients from 18 families carrying LOF variants in RBL2 , including fourteen new variants that substantially broaden the molecular spectrum. The clinical presentation of affected individuals is characterized by a range of neurological and developmental abnormalities. Global developmental delay and intellectual disability were uniformly observed, ranging from moderate to profound and involving lack of acquisition of key motor and speech milestones in most patients. Frequent features included postnatal microcephaly, infantile hypotonia, aggressive behaviour, stereotypic movements and non-specific dysmorphic features. Common neuroimaging features were cerebral atrophy, white matter volume loss, corpus callosum hypoplasia and cerebellar atrophy. In parallel, we used the fruit fly, Drosophila melanogaster , to investigate how disruption of the conserved RBL2 orthologueue Rbf impacts nervous system function and development. We found that Drosophila Rbf LOF mutants recapitulate several features of patients harboring RBL2 variants, including alterations in the head and brain morphology reminiscent of microcephaly, and perturbed locomotor behaviour. Surprisingly, in addition to its known role in controlling tissue growth during development, we find that continued Rbf expression is also required in fully differentiated post-mitotic neurons for normal locomotion in Drosophila , and that adult-stage neuronal re-expression of Rbf is sufficient to rescue Rbf mutant locomotor defects. Taken together, this study provides a clinical and experimental basis to understand genotype-phenotype correlations in an RBL2 -linked neurodevelopmental disorder and suggests that restoring RBL2 expression through gene therapy approaches may ameliorate aspects of RBL2 LOF patient symptoms.
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de Queiroz LF, Silva MSDME, Rosman FC, Rosas SLB, de Souza HSP, Carvalho MDGDC. Molecular monitoring by CDKN2A/p16INK4A and RB1 gene methylation in breast cancer. REVISTA DA ASSOCIACAO MEDICA BRASILEIRA (1992) 2024; 70:e20231358. [PMID: 38716944 PMCID: PMC11068390 DOI: 10.1590/1806-9282.20231358] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Accepted: 12/13/2023] [Indexed: 05/12/2024]
Abstract
OBJECTIVE This prospective study aimed to provide a comprehensive analysis of the methylation status of two pivotal genes, CDKN2A/p16INK4A (cyclin-dependent kinase inhibitor 2A) and RB1 (retinoblastoma transcriptional corepressor 1), in breast cancer patients. METHODS Samples were obtained from 15 women diagnosed with breast cancer and who underwent a total mastectomy. DNA was extracted from the tumor, non-tumor tissue, and peripheral blood (circulating cell-free DNA). The methylation pattern of cell-free DNA extracted from blood collected on the day of mastectomy was compared with the methylation pattern of cell-free DNA from blood collected 1 year post-surgery. The methylation analysis was carried out by sodium bisulfite conversion and polymerase chain reaction, followed by electrophoresis. RESULTS Methylation of CDKN2A/p16INK4A was identified in 13 tumor samples and 12 non-tumor tissue samples. Two patients exhibited CDKN2A/p16INK4A methylation in the cell-free DNA of the first blood collection, while another showed methylation only in the cell-free DNA of the subsequent blood collection. Regarding RB1, 11 tumors and 8 non-tumor tissue samples presented methylation of the gene. CONCLUSION This study presents a novel approach for monitoring breast cancer patients through the analysis of cell-free DNA methylation. This analysis can detect changes in methylation patterns before any visible sign of cancer appears in breast tissue and could help predict the recurrence of malignant breast tumors.
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Affiliation(s)
- Luiz Fernando de Queiroz
- Universidade Federal do Rio de Janeiro, Faculty of Medicine, Postgraduate Program in Pathological Anatomy, Department of Pathology – Rio de Janeiro (RJ), Brazil
| | | | - Fernando Colonna Rosman
- Universidade Federal do Rio de Janeiro, Faculty of Medicine, Department of Pathology – Rio de Janeiro (RJ), Brazil
| | - Siane Lopes Bittencourt Rosas
- Universidade Federal do Rio de Janeiro, Faculty of Medicine, Department of Clinical Medicine – Rio de Janeiro (RJ), Brazil
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Zhou M, Tang J, Fan J, Wen X, Shen J, Jia R, Chai P, Fan X. Recent progress in retinoblastoma: Pathogenesis, presentation, diagnosis and management. Asia Pac J Ophthalmol (Phila) 2024; 13:100058. [PMID: 38615905 DOI: 10.1016/j.apjo.2024.100058] [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: 01/07/2024] [Revised: 03/05/2024] [Accepted: 03/08/2024] [Indexed: 04/16/2024] Open
Abstract
Retinoblastoma, the primary ocular malignancy in pediatric patients, poses a substantial threat to mortality without prompt and effective management. The prognosis for survival and preservation of visual acuity hinges upon the disease severity at the time of initial diagnosis. Notably, retinoblastoma has played a crucial role in unraveling the genetic foundations of oncogenesis. The process of tumorigenesis commonly begins with the occurrence of biallelic mutation in the RB1 tumor suppressor gene, which is then followed by a cascade of genetic and epigenetic alterations that correspond to the clinical stage and pathological features of the tumor. The RB1 gene, recognized as a tumor suppressor, encodes the retinoblastoma protein, which plays a vital role in governing cellular replication through interactions with E2F transcription factors and chromatin remodeling proteins. The diagnosis and treatment of retinoblastoma necessitate consideration of numerous factors, including disease staging, germline mutation status, family psychosocial factors, and the resources available within the institution. This review has systematically compiled and categorized the latest developments in the diagnosis and treatment of retinoblastoma which enhanced the quality of care for this pediatric malignancy.
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Affiliation(s)
- Min Zhou
- Department of Ophthalmology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 20025, People's Republic of China; Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 20025, People's Republic of China
| | - Jieling Tang
- Department of Ophthalmology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 20025, People's Republic of China
| | - Jiayan Fan
- Department of Ophthalmology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 20025, People's Republic of China; Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 20025, People's Republic of China
| | - Xuyang Wen
- Department of Ophthalmology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 20025, People's Republic of China; Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 20025, People's Republic of China
| | - Jianfeng Shen
- Department of Ophthalmology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 20025, People's Republic of China; Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 20025, People's Republic of China
| | - Renbing Jia
- Department of Ophthalmology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 20025, People's Republic of China; Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 20025, People's Republic of China
| | - Peiwei Chai
- Department of Ophthalmology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 20025, People's Republic of China; Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 20025, People's Republic of China.
| | - Xianqun Fan
- Department of Ophthalmology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 20025, People's Republic of China; Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 20025, People's Republic of China.
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9
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Hasham MG, Sargent JK, Warner MA, Farley SR, Hoffmann BR, Stodola TJ, Brunton CJ, Munger SC. Methods to study xenografted human cancer in genetically diverse mice. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.01.23.576906. [PMID: 38328145 PMCID: PMC10849620 DOI: 10.1101/2024.01.23.576906] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/09/2024]
Abstract
Xenografting human cancer tissues into mice to test new cures against cancers is critical for understanding and treating the disease. However, only a few inbred strains of mice are used to study cancers, and derivatives of mainly one strain, mostly NOD/ShiLtJ, are used for therapy efficacy studies. As it has been demonstrated when human cancer cell lines or patient-derived tissues (PDX) are xenografted into mice, the neoplastic cells are human but the supporting cells that comprise the tumor (the stroma) are from the mouse. Therefore, results of studies of xenografted tissues are influenced by the host strain. We previously published that when the same neoplastic cells are xenografted into different mouse strains, the pattern of tumor growth, histology of the tumor, number of immune cells infiltrating the tumor, and types of circulating cytokines differ depending on the strain. Therefore, to better comprehend the behavior of cancer in vivo, one must xenograft multiple mouse strains. Here we describe and report a series of methods that we used to reveal the genes and proteins expressed when the same cancer cell line, MDA-MB-231, is xenografted in different hosts. First, using proteomic analysis, we show how to use the same cell line in vivo to reveal the protein changes in the neoplastic cell that help it adapt to its host. Then, we show how different hosts respond molecularly to the same cell line. We also find that using multiple strains can reveal a more suitable host than those traditionally used for a "difficult to xenograft" PDX. In addition, using complex trait genetics, we illustrate a feasible method for uncovering the alleles of the host that support tumor growth. Finally, we demonstrate that Diversity Outbred mice, the epitome of a model of mouse-strain genetic diversity, can be xenografted with human cell lines or PDX using 2-deoxy-D-glucose treatment.
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Pendleton E, Ketner A, Ransick P, Ardekani D, Bodenstine T, Chandar N. Loss of Function of the Retinoblastoma Gene Affects Gap Junctional Intercellular Communication and Cell Fate in Osteoblasts. BIOLOGY 2024; 13:39. [PMID: 38248470 PMCID: PMC10813623 DOI: 10.3390/biology13010039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Revised: 12/08/2023] [Accepted: 01/05/2024] [Indexed: 01/23/2024]
Abstract
Loss of function of the Retinoblastoma gene (RB1) due to mutations is commonly seen in human osteosarcomas. One of the Rb1 gene functions is to facilitate cell fate from mesenchymal stem cells to osteoblasts and prevent adipocyte differentiations. In this study, we demonstrate that a stable reduction of Rb1 expression (RbKD) in murine osteoblasts causes them to express higher levels of PPAR-ɣ and other adipocyte-specific transcription factors while retaining high expression of osteoblast-specific transcription factors, Runx2/Cbfa1 and SP7/Osterix. Inhibition of gap junctional intercellular communication (GJIC) in osteoblasts is another mechanism that causes osteoblasts to transdifferentiate to adipocytes. We found that preosteoblasts exposed to osteoblast differentiating media (DP media) increased GJIC. RbKD cells showed reduced GJIC along with a reduction in expression of Cx43, the protein that mediates GJIC. Other membrane associated adhesion protein Cadherin 11 (Cad11) was also decreased. Since PPAR-ɣ is increased with Rb1 loss, we wondered if the reduction of this transcription factor would reverse the changes observed. Reduction of PPAR-ɣ in control osteoblasts slightly increased bone-specific expression and reduced adipocytic expression as expected along with an increase in Cad11 and Cx43 expression. GJIC remained high and was unaffected by a reduction in PPAR-ɣ in control cells. Knockdown of PPAR-ɣ in RbKD cells reduced adipocyte gene expression, while osteoblast-specific expression showed improvement. Cx43, Cad11 and GJIC remained unaffected by PPAR-ɣ reduction. Our observations suggest that increased PPAR-ɣ that happens with Rb1 loss only affects osteoblast-adipocyte-specific gene expression but does not completely reverse Cx43 gene expression or GJIC. Therefore, these effects may represent independent events triggered by Rb1loss and/or the differentiation process.
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Affiliation(s)
- Elisha Pendleton
- Department of Biochemistry and Molecular Genetics, College of Graduate Studies, Midwestern University, Downers Grove, IL 60515, USA; (E.P.); (A.K.); (T.B.)
| | - Anthony Ketner
- Department of Biochemistry and Molecular Genetics, College of Graduate Studies, Midwestern University, Downers Grove, IL 60515, USA; (E.P.); (A.K.); (T.B.)
| | - Phil Ransick
- Chicago College of Osteopathic Medicine, Midwestern University, 555 31st Street, Downers Grove, IL 60515, USA; (P.R.); (D.A.)
| | - Doug Ardekani
- Chicago College of Osteopathic Medicine, Midwestern University, 555 31st Street, Downers Grove, IL 60515, USA; (P.R.); (D.A.)
| | - Thomas Bodenstine
- Department of Biochemistry and Molecular Genetics, College of Graduate Studies, Midwestern University, Downers Grove, IL 60515, USA; (E.P.); (A.K.); (T.B.)
| | - Nalini Chandar
- Department of Biochemistry and Molecular Genetics, College of Graduate Studies, Midwestern University, Downers Grove, IL 60515, USA; (E.P.); (A.K.); (T.B.)
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Uggerly ASV, Cummins DD, Nguyen MP, Saggi S, Aghi MK, Morshed RA. Correlation of Brain Metastasis Genomic Alterations with Preoperative Imaging Features. World Neurosurg 2024; 181:e475-e482. [PMID: 37879437 DOI: 10.1016/j.wneu.2023.10.084] [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: 07/29/2023] [Revised: 10/17/2023] [Accepted: 10/18/2023] [Indexed: 10/27/2023]
Abstract
BACKGROUND The aim of this study was to examine associations between genomic alterations in brain metastases and common preoperative imaging findings including overt intratumoral hemorrhage, cystic features, and edema. METHODS A single-center, retrospective study was performed including patients who underwent surgical resection of brain metastasis with available preoperative magnetic resonance imaging (MRI). Next-generation sequencing of more than 500 coding genes was performed on the resected brain metastases. Preoperative MRI was reviewed to identify the presence of intratumoral hemorrhage, cystic features, and edema in the resected brain metastasis. Genomic data were then correlated with the imaging features using univariate and multivariate nominal logistic regression analyses. RESULTS We included 144 brain metastases from 141 patients in the study cohort. Half (72) of the metastases had an intratumoral hemorrhage, 26 (18%) had cystic features, and 130 (90%) had edema. Mutations in TP53 were associated with a reduced risk of intratumoral hemorrhage (odds ratio [OR] 0.2, 95% confidence interval [CI] 0.07-0.5, P < 0.001). Mutations in RB1 and CCND1 were associated with elevated risk of the metastasis having cystic features (OR 10.3, 95% CI 2.0-52.6, P = 0.005, OR 18.4, 95% CI 2.2-155.3, P = 0.008, respectively). PIK3CA mutations were associated with a reduced risk of peritumoral edema (OR 0.2, 95% CI 0.04-0.8, P = 0.03). CONCLUSIONS Several genomic alterations in brain metastases are associated with MRI features including hemorrhage, cystic features, and edema. These results provide insight into tumor biology and patients at risk of developing these imaging features.
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Affiliation(s)
- Amalie S V Uggerly
- Department of Neurosurgery, Odense University Hospital, Odense C, Denmark; Department of Clinical Research, University of Southern Denmark, Odense C, Denmark; Department of Neurological Surgery, University of California, San Francisco, School of Medicine, San Francisco, California, USA
| | - Daniel D Cummins
- Department of Neurological Surgery, University of California, San Francisco, School of Medicine, San Francisco, California, USA
| | - Minh P Nguyen
- Department of Neurological Surgery, University of California, San Francisco, School of Medicine, San Francisco, California, USA
| | - Satvir Saggi
- Department of Neurological Surgery, University of California, San Francisco, School of Medicine, San Francisco, California, USA
| | - Manish K Aghi
- Department of Neurological Surgery, University of California, San Francisco, School of Medicine, San Francisco, California, USA
| | - Ramin A Morshed
- Department of Neurological Surgery, University of California, San Francisco, School of Medicine, San Francisco, California, USA.
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Shi H, He X, Yang Z, Liao Q, Ruan J, Ge S, Chai P, Jia R, Fan J, Wen X, Fan X. The Use of rAAV2-RB1-Mediated Gene Therapy in Retinoblastoma. Invest Ophthalmol Vis Sci 2023; 64:31. [PMID: 38133505 PMCID: PMC10746934 DOI: 10.1167/iovs.64.15.31] [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: 08/14/2023] [Accepted: 11/23/2023] [Indexed: 12/23/2023] Open
Abstract
Purpose Retinoblastoma (RB) is a life-threatening malignancy that arises from the retina and is activated upon homozygous inactivation of the tumor suppressor RB1. Gene therapy targeting RB1 is an effective strategy to treat RB. However, it is difficult to target the RB1 gene by site-specific repair, with up to 3366 gene mutation sites identified in RB1. Thus, it is necessary to construct a promising and efficacious gene therapeutic strategy for patients with RB. Methods To recover the function of the RB1 protein, we constructed a recombinant adeno-associated virus 2 (rAAV2) expressing RB1 that can restore RB1 function and significantly inhibit RB progression. To confirm the clinical feasibility of rAAV2-RB1, the RB1 protein was validated in vitro and in vivo after transfection. To further evaluate the clinical efficacy, RB patient-derived xenograft models were established and applied. The biosafety of rAAV2-RB1 was also validated in immunocompetent mice. Results rAAV2-RB1 was a rAAV2 expressing the RB1 protein, which was validated in vitro and in vivo. In vitro, rAAV2-RB1 was effectively expressed in patient-derived RB cells. In mice, intravitreal administration of rAAV2-RB1 in a population-based patient-derived xenograft trial induced limited tumor growth. Moreover, after transfection of rAAV2-RB1 in immunocompetent mice, rAAV2-RB1 did not replicate and was expressed in other important organs, except retinas, inducing minor local side effects. Conclusions Our study suggested a promising efficacy gene therapeutic strategy, which might provide a chemotherapy-independent treatment option for RB.
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Affiliation(s)
- Hanhan Shi
- Department of Ophthalmology, Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, People's Republic of China
- Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, People's Republic of China
| | - Xiaoyu He
- Department of Ophthalmology, Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, People's Republic of China
- Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, People's Republic of China
| | - Zhi Yang
- Department of Ophthalmology, Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, People's Republic of China
- Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, People's Republic of China
| | - Qili Liao
- Department of Ophthalmology, Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, People's Republic of China
- Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, People's Republic of China
| | - Jing Ruan
- Department of Ophthalmology, Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, People's Republic of China
- Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, People's Republic of China
| | - Shengfang Ge
- Department of Ophthalmology, Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, People's Republic of China
- Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, People's Republic of China
| | - Peiwei Chai
- Department of Ophthalmology, Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, People's Republic of China
- Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, People's Republic of China
| | - Renbing Jia
- Department of Ophthalmology, Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, People's Republic of China
- Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, People's Republic of China
| | - Jiayan Fan
- Department of Ophthalmology, Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, People's Republic of China
- Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, People's Republic of China
| | - Xuyang Wen
- Department of Ophthalmology, Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, People's Republic of China
- Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, People's Republic of China
| | - Xianqun Fan
- Department of Ophthalmology, Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, People's Republic of China
- Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, People's Republic of China
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Chen L, Zheng X, Liu W, Sun Y, Zhao S, Tian L, Tian W, Xue F, Kang C, Wang Y. Compound AC1Q3QWB upregulates CDKN1A and SOX17 by interrupting the HOTAIR-EZH2 interaction and enhances the efficacy of tazemetostat in endometrial cancer. Cancer Lett 2023; 578:216445. [PMID: 37866545 DOI: 10.1016/j.canlet.2023.216445] [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: 07/12/2023] [Revised: 09/29/2023] [Accepted: 10/11/2023] [Indexed: 10/24/2023]
Abstract
Endometrial cancer (EC) is a common malignancy of the female reproductive system, with an escalating incidence. Recurrent/metastatic EC presents a poor prognosis. The interaction between the long non-coding RNA (lncRNA) HOTAIR and the polycomb repressive complex 2 (PRC2) induces abnormal silencing of tumor suppressor genes, exerting a pivotal role in tumorigenesis. We have previously discovered AC1Q3QWB (AQB), a small-molecule compound targeting HOTAIR-EZH2 interaction. In the present study, we unveil that AQB selectively hampers the interaction between HOTAIR and EZH2 within EC cells, thus reversing the epigenetic suppression of tumor suppressor genes. Furthermore, our findings demonstrate AQB's synergistic effect with tazemetostat (TAZ), an EZH2 inhibitor, significantly boosting the expression of CDKN1A and SOX17. This, in turn, induces cell cycle arrest and impedes EC cell proliferation, migration, and invasion. In vivo experiments further validate AQB's potential by enhancing TAZ's anti-tumor efficacy at lower doses. Our results advocate AQB, a recently discovered small-molecule inhibitor, as a promising agent against EC cells. When combined with TAZ, it offers a novel therapeutic strategy for EC treatment.
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Affiliation(s)
- Lingli Chen
- Department of Gynecology and Obstetrics, Tianjin Medical University General Hospital, Tianjin, 300052, China; Tianjin Key Laboratory of Female Reproductive Health and Eugenics, Tianjin Medical University General Hospital, Tianjin, 300052, China
| | - Xingyu Zheng
- Department of Gynecology and Obstetrics, Tianjin Medical University General Hospital, Tianjin, 300052, China; Tianjin Key Laboratory of Female Reproductive Health and Eugenics, Tianjin Medical University General Hospital, Tianjin, 300052, China
| | - Wenlu Liu
- Department of Gynecology and Obstetrics, Tianjin Medical University General Hospital, Tianjin, 300052, China; Tianjin Key Laboratory of Female Reproductive Health and Eugenics, Tianjin Medical University General Hospital, Tianjin, 300052, China
| | - Yiqing Sun
- Department of Gynecology and Obstetrics, Tianjin Medical University General Hospital, Tianjin, 300052, China; Tianjin Key Laboratory of Female Reproductive Health and Eugenics, Tianjin Medical University General Hospital, Tianjin, 300052, China
| | - Shuangshuang Zhao
- Department of Gynecology and Obstetrics, Tianjin Medical University General Hospital, Tianjin, 300052, China; Tianjin Key Laboratory of Female Reproductive Health and Eugenics, Tianjin Medical University General Hospital, Tianjin, 300052, China
| | - Lina Tian
- Department of Gynecology and Obstetrics, Tianjin Medical University General Hospital, Tianjin, 300052, China; Tianjin Key Laboratory of Female Reproductive Health and Eugenics, Tianjin Medical University General Hospital, Tianjin, 300052, China
| | - Wenyan Tian
- Department of Gynecology and Obstetrics, Tianjin Medical University General Hospital, Tianjin, 300052, China; Tianjin Key Laboratory of Female Reproductive Health and Eugenics, Tianjin Medical University General Hospital, Tianjin, 300052, China
| | - Fengxia Xue
- Department of Gynecology and Obstetrics, Tianjin Medical University General Hospital, Tianjin, 300052, China; Tianjin Key Laboratory of Female Reproductive Health and Eugenics, Tianjin Medical University General Hospital, Tianjin, 300052, China.
| | - Chunsheng Kang
- Department of Neurosurgery, Tianjin Medical University General Hospital, Lab of Neuro-oncology, Tianjin Neurological Institute, Tianjin, 300052, China.
| | - Yingmei Wang
- Department of Gynecology and Obstetrics, Tianjin Medical University General Hospital, Tianjin, 300052, China; Tianjin Key Laboratory of Female Reproductive Health and Eugenics, Tianjin Medical University General Hospital, Tianjin, 300052, China.
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Čižmáriková M, Michalková R, Mirossay L, Mojžišová G, Zigová M, Bardelčíková A, Mojžiš J. Ellagic Acid and Cancer Hallmarks: Insights from Experimental Evidence. Biomolecules 2023; 13:1653. [PMID: 38002335 PMCID: PMC10669545 DOI: 10.3390/biom13111653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Revised: 11/10/2023] [Accepted: 11/12/2023] [Indexed: 11/26/2023] Open
Abstract
Cancer is a complex and multifaceted disease with a high global incidence and mortality rate. Although cancer therapy has evolved significantly over the years, numerous challenges persist on the path to effectively combating this multifaceted disease. Natural compounds derived from plants, fungi, or marine organisms have garnered considerable attention as potential therapeutic agents in the field of cancer research. Ellagic acid (EA), a natural polyphenolic compound found in various fruits and nuts, has emerged as a potential cancer prevention and treatment agent. This review summarizes the experimental evidence supporting the role of EA in targeting key hallmarks of cancer, including proliferation, angiogenesis, apoptosis evasion, immune evasion, inflammation, genomic instability, and more. We discuss the molecular mechanisms by which EA modulates signaling pathways and molecular targets involved in these cancer hallmarks, based on in vitro and in vivo studies. The multifaceted actions of EA make it a promising candidate for cancer prevention and therapy. Understanding its impact on cancer biology can pave the way for developing novel strategies to combat this complex disease.
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Affiliation(s)
- Martina Čižmáriková
- Department of Pharmacology, Faculty of Medicine, Pavol Jozef Šafárik University, 040 01 Košice, Slovakia; (M.Č.); (R.M.); (M.Z.); (A.B.)
| | - Radka Michalková
- Department of Pharmacology, Faculty of Medicine, Pavol Jozef Šafárik University, 040 01 Košice, Slovakia; (M.Č.); (R.M.); (M.Z.); (A.B.)
| | - Ladislav Mirossay
- Department of Pharmacology, Faculty of Medicine, Pavol Jozef Šafárik University, 040 01 Košice, Slovakia; (M.Č.); (R.M.); (M.Z.); (A.B.)
| | - Gabriela Mojžišová
- Center of Clinical and Preclinical Research MEDIPARK, Faculty of Medicine, Pavol Jozef Šafárik University, 040 01 Košice, Slovakia;
| | - Martina Zigová
- Department of Pharmacology, Faculty of Medicine, Pavol Jozef Šafárik University, 040 01 Košice, Slovakia; (M.Č.); (R.M.); (M.Z.); (A.B.)
| | - Annamária Bardelčíková
- Department of Pharmacology, Faculty of Medicine, Pavol Jozef Šafárik University, 040 01 Košice, Slovakia; (M.Č.); (R.M.); (M.Z.); (A.B.)
| | - Ján Mojžiš
- Department of Pharmacology, Faculty of Medicine, Pavol Jozef Šafárik University, 040 01 Košice, Slovakia; (M.Č.); (R.M.); (M.Z.); (A.B.)
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Figueiredo D, Marques IA, Pires AS, Cavaleiro CF, Costa LC, Castela G, Murta JN, Botelho MF, Abrantes AM. Risk of Second Tumors in Retinoblastoma Survivors after Ionizing Radiation: A Review. Cancers (Basel) 2023; 15:5336. [PMID: 38001596 PMCID: PMC10670427 DOI: 10.3390/cancers15225336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Revised: 11/03/2023] [Accepted: 11/07/2023] [Indexed: 11/26/2023] Open
Abstract
Retinoblastoma (RB) is the most common ocular neoplasm in children, whose development depends on two mutational events that occur in both alleles of the retinoblastoma susceptibility gene (RB1). Regarding the nature of these mutational events, RB can be classified as hereditary if the first event is a germline mutation and the second one is a somatic mutation in retina cells or nonhereditary if both mutational events occur in somatic cells. Although the rate of survival of RB is significantly elevated, the incidence of second malignant neoplasms (SMNs) is a concern, since SMNs are the main cause of death in these patients. Effectively, RB patients present a higher risk of SMN incidence compared to other oncology patients. Furthermore, evidence confirms that hereditary RB survivors are at a higher risk for SMNs than nonhereditary RB survivors. Over the decades, some studies have been performed to better understand this subject, evaluating the risk of the development of SMNs in RB patients. Furthermore, this risk seems to increase with the use of ionizing radiation in some therapeutic approaches commonly used in the treatment of RB. This review aims to clarify the effect of ionizing radiation in RB patients and to understand the association between the risk of SMN incidence in patients that underwent radiation therapy, especially in hereditary RB individuals.
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Affiliation(s)
- Diana Figueiredo
- University of Coimbra, Coimbra Institute for Clinical and Biomedical Research (iCBR) Area of Environment Genetics and Oncobiology (CIMAGO), Institute of Biophysics, Faculty of Medicine, 3000-548 Coimbra, Portugal; (D.F.); (I.A.M.); (A.S.P.)
- University of Coimbra, Faculty of Sciences and Technology, 3000-548 Coimbra, Portugal
| | - Inês A. Marques
- University of Coimbra, Coimbra Institute for Clinical and Biomedical Research (iCBR) Area of Environment Genetics and Oncobiology (CIMAGO), Institute of Biophysics, Faculty of Medicine, 3000-548 Coimbra, Portugal; (D.F.); (I.A.M.); (A.S.P.)
- University of Coimbra, Center for Innovative Biomedicine and Biotechnology (CIBB), 3000-548 Coimbra, Portugal
- University of Coimbra, Faculty of Pharmacy, 3000-548 Coimbra, Portugal
| | - Ana Salomé Pires
- University of Coimbra, Coimbra Institute for Clinical and Biomedical Research (iCBR) Area of Environment Genetics and Oncobiology (CIMAGO), Institute of Biophysics, Faculty of Medicine, 3000-548 Coimbra, Portugal; (D.F.); (I.A.M.); (A.S.P.)
- University of Coimbra, Center for Innovative Biomedicine and Biotechnology (CIBB), 3000-548 Coimbra, Portugal
- Clinical Academic Centre of Coimbra (CACC), 3000-061 Coimbra, Portugal; (G.C.); (J.N.M.)
| | - Claudia F. Cavaleiro
- Medical Imaging and Radiotherapy Department, Polytechnic Institute of Coimbra, ESTESC-Coimbra Health School, 3045-093 Coimbra, Portugal; (C.F.C.); (L.C.C.)
| | - Luís C. Costa
- Medical Imaging and Radiotherapy Department, Polytechnic Institute of Coimbra, ESTESC-Coimbra Health School, 3045-093 Coimbra, Portugal; (C.F.C.); (L.C.C.)
| | - Guilherme Castela
- Clinical Academic Centre of Coimbra (CACC), 3000-061 Coimbra, Portugal; (G.C.); (J.N.M.)
- Pediatric Oncology Service, Centro Hospitalar Universitário de Coimbra, 3000-602 Coimbra, Portugal
- Department of Ophthalmology, Centro de Responsabilidade Integrado de Oftalmologia, Centro Hospitalar e Universitário de Coimbra, 3000-602 Coimbra, Portugal
- University of Coimbra, Faculty of Medicine, 3000-548 Coimbra, Portugal
| | - Joaquim N. Murta
- Clinical Academic Centre of Coimbra (CACC), 3000-061 Coimbra, Portugal; (G.C.); (J.N.M.)
- Department of Ophthalmology, Centro de Responsabilidade Integrado de Oftalmologia, Centro Hospitalar e Universitário de Coimbra, 3000-602 Coimbra, Portugal
- University of Coimbra, Faculty of Medicine, 3000-548 Coimbra, Portugal
| | - Maria Filomena Botelho
- University of Coimbra, Coimbra Institute for Clinical and Biomedical Research (iCBR) Area of Environment Genetics and Oncobiology (CIMAGO), Institute of Biophysics, Faculty of Medicine, 3000-548 Coimbra, Portugal; (D.F.); (I.A.M.); (A.S.P.)
- University of Coimbra, Center for Innovative Biomedicine and Biotechnology (CIBB), 3000-548 Coimbra, Portugal
- Clinical Academic Centre of Coimbra (CACC), 3000-061 Coimbra, Portugal; (G.C.); (J.N.M.)
| | - Ana Margarida Abrantes
- University of Coimbra, Coimbra Institute for Clinical and Biomedical Research (iCBR) Area of Environment Genetics and Oncobiology (CIMAGO), Institute of Biophysics, Faculty of Medicine, 3000-548 Coimbra, Portugal; (D.F.); (I.A.M.); (A.S.P.)
- University of Coimbra, Center for Innovative Biomedicine and Biotechnology (CIBB), 3000-548 Coimbra, Portugal
- Clinical Academic Centre of Coimbra (CACC), 3000-061 Coimbra, Portugal; (G.C.); (J.N.M.)
- Medical Imaging and Radiotherapy Department, Polytechnic Institute of Coimbra, ESTESC-Coimbra Health School, 3045-093 Coimbra, Portugal; (C.F.C.); (L.C.C.)
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16
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Marković L, Bukovac A, Varošanec AM, Šlaus N, Pećina-Šlaus N. Genetics in ophthalmology: molecular blueprints of retinoblastoma. Hum Genomics 2023; 17:82. [PMID: 37658463 PMCID: PMC10474694 DOI: 10.1186/s40246-023-00529-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Accepted: 08/25/2023] [Indexed: 09/03/2023] Open
Abstract
This review presents current knowledge on the molecular biology of retinoblastoma (RB). Retinoblastoma is an intraocular tumor with hereditary and sporadic forms. 8,000 new cases of this ocular malignancy of the developing retina are diagnosed each year worldwide. The major gene responsible for retinoblastoma is RB1, and it harbors a large spectrum of pathogenic variants. Tumorigenesis begins with mutations that cause RB1 biallelic inactivation preventing the production of functional pRB proteins. Depending on the type of mutation the penetrance of RB is different. However, in small percent of tumors additional genes may be required, such as MYCN, BCOR and CREBBP. Additionally, epigenetic changes contribute to the progression of retinoblastoma as well. Besides its role in the cell cycle, pRB plays many additional roles, it regulates the nucleosome structure, participates in apoptosis, DNA replication, cellular senescence, differentiation, DNA repair and angiogenesis. Notably, pRB has an important role as a modulator of chromatin remodeling. In recent years high-throughput techniques are becoming essential for credible biomarker identification and patient management improvement. In spite of remarkable advances in retinoblastoma therapy, primarily in high-income countries, our understanding of retinoblastoma and its specific genetics still needs further clarification in order to predict the course of this disease and improve therapy. One such approach is the tumor free DNA that can be obtained from the anterior segment of the eye and be useful in diagnostics and prognostics.
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Affiliation(s)
- Leon Marković
- Department of Ophthalmology, Reference Center of the Ministry of Health of the Republic of Croatia for Pediatric Ophthalmology and Strabismus, University Hospital "Sveti Duh", Zagreb, Croatia
- Faculty of Dental Medicine and Health Osijek, Josip Juraj Strossmayer University of Osijek, Osijek, Croatia
| | - Anja Bukovac
- Department of Biology, School of Medicine, University of Zagreb, Šalata 3, 10000, Zagreb, Croatia
- Laboratory of Neurooncology, Croatian Institute for Brain Research, School of Medicine, University of Zagreb, Salata 12, 10000, Zagreb, Croatia
| | - Ana Maria Varošanec
- Department of Ophthalmology, Reference Center of the Ministry of Health of the Republic of Croatia for Pediatric Ophthalmology and Strabismus, University Hospital "Sveti Duh", Zagreb, Croatia
- Faculty of Dental Medicine and Health Osijek, Josip Juraj Strossmayer University of Osijek, Osijek, Croatia
| | - Nika Šlaus
- Department of Biology, School of Medicine, University of Zagreb, Šalata 3, 10000, Zagreb, Croatia
| | - Nives Pećina-Šlaus
- Department of Biology, School of Medicine, University of Zagreb, Šalata 3, 10000, Zagreb, Croatia.
- Laboratory of Neurooncology, Croatian Institute for Brain Research, School of Medicine, University of Zagreb, Salata 12, 10000, Zagreb, Croatia.
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17
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Zuo S, Li L, Wen X, Gu X, Zhuang A, Li R, Ye F, Ge S, Fan X, Fan J, Chai P, Lu L. NSUN2-mediated m 5 C RNA methylation dictates retinoblastoma progression through promoting PFAS mRNA stability and expression. Clin Transl Med 2023; 13:e1273. [PMID: 37228185 DOI: 10.1002/ctm2.1273] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 05/03/2023] [Accepted: 05/10/2023] [Indexed: 05/27/2023] Open
Abstract
BACKGROUND The precise temporal and spatial regulation of N5 -methylcytosine (m5 C) RNA modification plays essential roles in RNA metabolism, and is necessary for the maintenance of epigenome homeostasis. Howbeit, the mechanism underlying the m5 C modification in carcinogenesis remains to be fully addressed. METHODS Global and mRNA m5 C levels were determined by mRNA isolation and anti-m5 C dot blot in both retinoblastoma (RB) cells and clinical samples. Orthotopic intraocular xenografts were established to examine the oncogenic behaviours of RB. Genome-wide multiomics analyses were performed to identify the functional target of NSUN2, including proteomic analysis, transcriptome screening and m5 C-methylated RNA immunoprecipitation sequencing (m5 C-meRIP-seq). Organoid-based single-cell analysis and gene-correlation analysis were performed to verify the NSUN2/ALYREF/m5 C-PFAS oncogenic cascade. RESULTS Herein, we report that NSUN2-mediated m5 C RNA methylation fuels purine biosynthesis during the oncogenic progression of RB. First, we discovered that global and mRNA m5 C levels were significantly enriched in RBs compared to normal retinas. In addition, tumour-specific NSUN2 expression was noted in RB samples and cell lines. Therapeutically, targeted correction of NSUN2 exhibited efficient therapeutic efficacy in RB both in vitro and in vivo. Through multiomics analyses, we subsequently identified phosphoribosylformylglycinamidine synthase (PFAS), a vital enzyme in purine biosynthesis, as a downstream candidate target of NSUN2. The reintroduction of PFAS largely reversed the inhibitory phenotypes in NSUN2-deficient RB cells, indicating that PFAS was a functional downstream target of NSUN2. Mechanistically, we found that the m5 C reader protein ALYREF was responsible for the recognition of the m5 C modification of PFAS, increasing its expression by enhancing its RNA stability. CONCLUSIONS Conclusively, we initially demonstrated that NSUN2 is necessary for oncogenic gene activation in RB, expanding the current understanding of dynamic m5 C function during tumour progression. As the NSUN2/ALYREF/m5 C-PFAS oncogenic cascade is an important RB trigger, our study suggests that a targeted m5 C reprogramming therapeutic strategy may be a novel and efficient anti-tumour therapy approach.
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Affiliation(s)
- Sipeng Zuo
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
- Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, People's Republic of China
| | - Lin Li
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
- Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, People's Republic of China
| | - Xuyang Wen
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
- Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, People's Republic of China
| | - Xiang Gu
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
- Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, People's Republic of China
| | - Ai Zhuang
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
- Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, People's Republic of China
| | - Rui Li
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
- Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, People's Republic of China
| | - Fuxiang Ye
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
- Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, People's Republic of China
| | - Shengfang Ge
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
- Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, People's Republic of China
| | - Xianqun Fan
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
- Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, People's Republic of China
| | - Jiayan Fan
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
- Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, People's Republic of China
| | - Peiwei Chai
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
- Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, People's Republic of China
| | - Linna Lu
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
- Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, People's Republic of China
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18
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Wang X, Zeng W, Yang L, Chang T, Zeng J. Epithelial-mesenchymal transition-related gene prognostic index and phenotyping clusters for hepatocellular carcinoma patients. Cancer Genet 2023; 274-275:41-50. [PMID: 36972656 DOI: 10.1016/j.cancergen.2023.03.006] [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: 12/03/2022] [Revised: 02/28/2023] [Accepted: 03/16/2023] [Indexed: 03/29/2023]
Abstract
Epithelial-mesenchymal transition (EMT) contributes to high tumor heterogeneity and the immunosuppressive environment of the HCC tumor microenvironment (TME). Here, we developed EMT-related genes phenotyping clusters and systematically evaluated their impact on HCC prognosis, the TME, and drug efficacy prediction. We identified HCC specific EMT-related genes using weighted gene co-expression network analysis (WGCNA). An EMT-related genes prognostic index (EMT-RGPI) capable of effectively predicting HCC prognosis was then constructed. Consensus clustering of 12 HCC specific EMT-related hub genes uncovered two molecular clusters C1 and C2. Cluster C2 preferentially associated with unfavorable prognosis, higher stemness index (mRNAsi) value, elevated immune checkpoint expression, and immune cell infiltration. The TGF-β signaling, EMT, glycolysis, Wnt β-catenin signaling, and angiogenesis were markedly enriched in cluster C2. Moreover, cluster C2 exhibited higher TP53 and RB1 mutation rates. The TME subtypes and tumor immune dysfunction and exclusion (TIDE) score showed that cluster C1 patients responded well to immune checkpoint inhibitors (ICIs). Half-maximal inhibitory concentration (IC50) revealed that cluster C2 patients were more sensitive to chemotherapeutic and antiangiogenic agents. These findings may guide risk stratification and precision therapy for HCC patients.
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Affiliation(s)
| | - Wangyuan Zeng
- Department of Geriatric Medicine, The First Affiliated Hospital of Hainan Medical University, Haikou 570102, China
| | - Lu Yang
- Departments of Medical Oncology, China
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19
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Ge T, Gu X, Jia R, Ge S, Chai P, Zhuang A, Fan X. Crosstalk between metabolic reprogramming and epigenetics in cancer: updates on mechanisms and therapeutic opportunities. CANCER COMMUNICATIONS (LONDON, ENGLAND) 2022; 42:1049-1082. [PMID: 36266736 PMCID: PMC9648395 DOI: 10.1002/cac2.12374] [Citation(s) in RCA: 45] [Impact Index Per Article: 22.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Revised: 09/19/2022] [Accepted: 10/10/2022] [Indexed: 11/24/2022]
Abstract
Reversible, spatial, and temporal regulation of metabolic reprogramming and epigenetic homeostasis are prominent hallmarks of carcinogenesis. Cancer cells reprogram their metabolism to meet the high bioenergetic and biosynthetic demands for vigorous proliferation. Epigenetic dysregulation is a common feature of human cancers, which contributes to tumorigenesis and maintenance of the malignant phenotypes by regulating gene expression. The epigenome is sensitive to metabolic changes. Metabolism produces various metabolites that are substrates, cofactors, or inhibitors of epigenetic enzymes. Alterations in metabolic pathways and fluctuations in intermediate metabolites convey information regarding the intracellular metabolic status into the nucleus by modulating the activity of epigenetic enzymes and thus remodeling the epigenetic landscape, inducing transcriptional responses to heterogeneous metabolic requirements. Cancer metabolism is regulated by epigenetic machinery at both transcriptional and post‐transcriptional levels. Epigenetic modifiers, chromatin remodelers and non‐coding RNAs are integral contributors to the regulatory networks involved in cancer metabolism, facilitating malignant transformation. However, the significance of the close connection between metabolism and epigenetics in the context of cancer has not been fully deciphered. Thus, it will be constructive to summarize and update the emerging new evidence supporting this bidirectional crosstalk and deeply assess how the crosstalk between metabolic reprogramming and epigenetic abnormalities could be exploited to optimize treatment paradigms and establish new therapeutic options. In this review, we summarize the central mechanisms by which epigenetics and metabolism reciprocally modulate each other in cancer and elaborate upon and update the major contributions of the interplays between epigenetic aberrations and metabolic rewiring to cancer initiation and development. Finally, we highlight the potential therapeutic opportunities for hematological malignancies and solid tumors by targeting this epigenetic‐metabolic circuit. In summary, we endeavored to depict the current understanding of the coordination between these fundamental abnormalities more comprehensively and provide new perspectives for utilizing metabolic and epigenetic targets for cancer treatment.
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Affiliation(s)
- Tongxin Ge
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, P. R. China.,Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, 200011, P. R. China
| | - Xiang Gu
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, P. R. China.,Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, 200011, P. R. China
| | - Renbing Jia
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, P. R. China.,Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, 200011, P. R. China
| | - Shengfang Ge
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, P. R. China.,Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, 200011, P. R. China
| | - Peiwei Chai
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, P. R. China.,Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, 200011, P. R. China
| | - Ai Zhuang
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, P. R. China.,Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, 200011, P. R. China
| | - Xianqun Fan
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, P. R. China.,Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, 200011, P. R. China
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