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Sun H, Shang J, Liu X, Ren S, Hu S, Wang X. Eukaryotic initiation factor 3a promotes the development of diffuse large B-cell lymphoma through regulating cell proliferation. BMC Cancer 2024; 24:432. [PMID: 38589831 PMCID: PMC11003032 DOI: 10.1186/s12885-024-12166-0] [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: 03/21/2024] [Indexed: 04/10/2024] Open
Abstract
BACKGROUND One-third of diffuse large B-cell lymphoma (DLBCL) patients suffer relapse after standard treatment. Eukaryotic initiation factor 3a (eIF3a) is a key player in the initial stage of translation, which has been widely reported to be correlated with tumorigenesis and therapeutic response. This study aimed to explore the biological role of eIF3a, evaluate its prognostic and therapeutic potential in DLBCL. METHODS RNA-seq datasets from GEO database were utilized to detect the expression and prognostic role of eIF3a in DLBCL patients. Protein level of eIF3a was estimated by western blot and immunohistochemical. Next, DLBCL cells were transfected with lentiviral vector either eIF3a-knockdown or empty to assess the biological role of eIF3a. Then, samples were divided into 2 clusters based on eIF3a expression and differentially expressed genes (DEGs) were identified. Function enrichment and mutation analysis of DEGs were employed to detect potential biological roles. Moreover, we also applied pan-cancer and chemosensitivity analysis for deep exploration. RESULTS eIF3a expression was found to be higher in DLBCL than healthy controls, which was associated with worse prognosis. The expression of eIF3a protein was significantly increased in DLBCL cell lines compared with peripheral blood mononuclear cells (PBMCs) from healthy donors. eIF3a knockdown inhibited the proliferation of DLBCL cells and the expression of proliferation-related proteins and increase cell apoptosis rate. Besides, 114 DEGs were identified which had a close linkage to cell cycle and tumor immune. eIF3a and DEGs mutations were found to be correlated to chemosensitivity and vital signal pathways. Pan-cancer analysis demonstrated that high eIF3a expression was associated with worse prognosis in several tumors. Moreover, eIF3a expression was found to be related to chemosensitivity of several anti-tumor drugs in DLBCL, including Vincristine and Wee1 inhibitor. CONCLUSIONS We firstly revealed the high expression and prognostic role of eIF3a in DLBCL, and eIF3a might promote the development of DLBCL through regulating cell proliferation and apoptosis. eIF3a expression was related to immune profile and chemosensitivity in DLBCL. These results suggest that eIF3a could serve as a potential prognostic biomarker and therapeutic target in DLBCL.
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Affiliation(s)
- Hongkun Sun
- Department of Hematology, Shandong Provincial Hospital, Shandong University, 250021, Jinan, Shandong, China
- Department of Hematology, Binzhou Medical University Hospital, 256603, Binzhou, Shandong, China
| | - Juanjuan Shang
- Department of Hematology, Shandong Provincial Hospital, Shandong University, 250021, Jinan, Shandong, China
| | - Xiao Liu
- Department of Hematology, Binzhou Medical University Hospital, 256603, Binzhou, Shandong, China
| | - Shuai Ren
- Department of Oncology, Zibo Central Hospital, 255016, Zibo, Shandong, China
| | - Shunfeng Hu
- Department of Hematology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, No. 324, Jingwu Road, 250021, Jinan, Shandong, China.
| | - Xin Wang
- Department of Hematology, Shandong Provincial Hospital, Shandong University, 250021, Jinan, Shandong, China.
- Department of Hematology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, No. 324, Jingwu Road, 250021, Jinan, Shandong, China.
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Previtali V, Myers SH, Poppi L, Wynne K, Casamassima I, Girotto S, Di Stefano G, Farabegoli F, Roberti M, Oliviero G, Cavalli A. Preomic profile of BxPC-3 cells after treatment with BRC4. J Proteomics 2023; 288:104983. [PMID: 37536521 DOI: 10.1016/j.jprot.2023.104983] [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: 04/11/2023] [Revised: 07/26/2023] [Accepted: 07/26/2023] [Indexed: 08/05/2023]
Abstract
BRCA2 and RAD51 are two proteins that play a central role in homologous recombination (HR) and DNA double strand break (DSB) repair. BRCA2 assists RAD51 fibrillation and defibrillation through binding with its eight BRC repeats, with BRC4 being one of the most efficient and best characterized. RAD51 inactivation by small molecules has been proposed as a strategy to impair BRCA2/RAD51 binding and, ultimately, the HR pathway, with the aim of making cancer cells more sensitive to PARP inhibitors (PARPi). This strategy, which mimics a synthetic lethality (SL) approach, has been successfully performed in vitro by using the myristoylated derivative of BRC4 (myr-BRC4), designed for a more efficient cell entry. The present study applies a method to obtain a proteomic fingerprint after cellular treatment with the myr-BRC4 peptide using a mass spectroscopy (MS) proteomic approach. (Data are available via ProteomeXchange with identifier PXD042696.) We performed a comparative proteomic profiling of the myr-BRC4 treated vs. untreated BxPC-3 pancreatic cancer cells and evaluated the differential expression of proteins. Among the identified proteins, we focused our attention on proteins shared by both the RAD51 and the BRCA2 interactomes, and on those whose reduction showed high statistical significance. Three downregulated proteins were identified (FANCI, FANCD2, and RPA3), and protein downregulation was confirmed through immunoblotting analysis, validating the MS approach. Our results suggest that, being a direct consequence of myr-BRC4 treatment, the detection of FANCD2, FANCI, and RPA3 downregulation could be used as an indicator for monitoring HR impairment. SIGNIFICANCE: RAD51's inhibition has gained increasing attention because of its possible implications in personalized medicine through the SL approach. Chemical disruption of protein-protein interactions (PPIs) between RAD51 and BRCA2, or some of its partner proteins, could potentiate PARPi DNA damage-induced cell death. This could have application for difficult to treat cancers, such as BRCA-competent and olaparib (PARPi) resistant pancreatic adenocarcinoma. Despite RAD51 being a widely studied target, researchers still lack detailed mechanistic information. This has stifled progress in the field with only a few RAD51 inhibitors having been identified, none of which have gained regulatory approval. Nevertheless, the peptide BRC4 is one of the most specific and best characterized RAD51 binder and inhibitor reported to date. Our study is the first to report the proteomic fingerprint consequent to cellular treatment of myr-BRC4, to offer a reference for the discovery of specific protein/pathway alterations within DNA damage repair. Our results suggest that, being a direct consequence of myr-BRC4 treatment, and ultimately ofBRCA2/RAD51 disruption, the detection of FANCD2, FANCI, and RPA3 downregulation could be used as an indicator for monitoring DNA damage repair impairment and therefore be used to potentiate the development of new effective therapeutic strategies.
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Affiliation(s)
- Viola Previtali
- Computational & Chemical Biology, Istituto Italiano di Tecnologia, 16163 Genova, Italy
| | - Samuel H Myers
- Computational & Chemical Biology, Istituto Italiano di Tecnologia, 16163 Genova, Italy
| | - Laura Poppi
- Department of Pharmacy and Biotechnology, University of Bologna, 40126 Bologna, Italy
| | - Kieran Wynne
- Systems Biology Ireland, School of Medicine, University College Dublin, Belfield Dublin 4, Ireland; Conway Institute of Biomolecular & Biomedical Research, University College Dublin, Dublin 4, Ireland
| | - Irene Casamassima
- Computational & Chemical Biology, Istituto Italiano di Tecnologia, 16163 Genova, Italy
| | - Stefania Girotto
- Computational & Chemical Biology, Istituto Italiano di Tecnologia, 16163 Genova, Italy; Structural Biophysics and Translational Pharmacology Facility, Istituto Italiano di Tecnologia, via Morego 30, 16163 Genova, Italy
| | - Giuseppina Di Stefano
- Department of Surgical and Medical Sciences, University of Bologna, 40126 Bologna, Italy
| | - Fulvia Farabegoli
- Department of Pharmacy and Biotechnology, University of Bologna, 40126 Bologna, Italy
| | - Marinella Roberti
- Department of Pharmacy and Biotechnology, University of Bologna, 40126 Bologna, Italy
| | - Giorgio Oliviero
- Systems Biology Ireland, School of Medicine, University College Dublin, Belfield Dublin 4, Ireland
| | - Andrea Cavalli
- Computational & Chemical Biology, Istituto Italiano di Tecnologia, 16163 Genova, Italy; Department of Pharmacy and Biotechnology, University of Bologna, 40126 Bologna, Italy.
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Kong J, Xu S, Zhang P, Wang Y. Transcription Factor E2F8 Promotes Cisplatin Resistance in Hepatocellular Carcinoma by Regulating DNA Damage via NUSAP1. Int J Toxicol 2023; 42:420-429. [PMID: 37331996 DOI: 10.1177/10915818231182114] [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] [Indexed: 06/20/2023]
Abstract
DNA damage repair has been the key mechanism of cisplatin resistance in hepatocellular carcinoma (HCC). The present study elucidated the molecular mechanism by which nucleolar and spindle-associated protein 1 (NUSAP1) influenced cisplatin tolerance in HCC by regulating DNA damage. First, high mRNA expression of E2F8 and NUSAP1 in HCC was detected by real-time quantitative PCR in cells and tumor tissue. The interaction between E2F8 and NUSAP1 was confirmed by chromatin immunoprecipitation (ChIP) and dual-luciferase reporter assays that E2F8 bound to the promoter region of NUSAP1 and regulated its transcriptional activity. The effects of the E2F8/NUSAP1 axis on cell viability, cell cycle, DNA damage protein γ-H2AX, and cisplatin resistance were investigated by CCK-8, flow cytometry, comet detection, and western blot. The results showed that NUSAP1 knockdown blocked the cell cycle in G0/G1 phase, promoted cisplatin-induced DNA damage, and enhanced cisplatin sensitivity in HCC. Overexpressed E2F8 promoted cell cycle arrest by silencing NUSAP1 in HCC, and promoting DNA damage as well as cisplatin sensitivity. In conclusion, our results suggested that E2F8 enhanced the chemoresistance of HCC cells to cisplatin by activating NUSAP1 to inhibit DNA damage, which provides a basis for describing new therapeutic targets that effectively exacerbate DNA damage and improve the chemical sensitivity of HCC to cisplatin.
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Affiliation(s)
- Jianqiao Kong
- Department of General Surgery, Xiangyang No.1 People's Hospital, Hubei University of Medicine, Xiangyang, China
| | - Song Xu
- Department of General Surgery, Xiangyang No.1 People's Hospital, Hubei University of Medicine, Xiangyang, China
| | - Peng Zhang
- Department of General Surgery, Xiangyang No.1 People's Hospital, Hubei University of Medicine, Xiangyang, China
| | - Yi Wang
- Department of General Surgery, Xiangyang No.1 People's Hospital, Hubei University of Medicine, Xiangyang, China
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Li D, Hu J, Li S, Zhou C, Feng M, Li L, Gao Y, Chen X, Wu X, Cao Y, Hao B, Chen L. LINC01393, a Novel Long Non-Coding RNA, Promotes the Cell Proliferation, Migration and Invasion through MiR-128-3p/NUSAP1 Axis in Glioblastoma. Int J Mol Sci 2023; 24:ijms24065878. [PMID: 36982952 PMCID: PMC10056594 DOI: 10.3390/ijms24065878] [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: 02/10/2023] [Revised: 03/04/2023] [Accepted: 03/14/2023] [Indexed: 03/30/2023] Open
Abstract
Nucleolar and spindle-associated protein 1 (NUSAP1) is a potential molecular marker and intervention target for glioblastoma (GBM). In this study, we aim to investigate upstream regulatory lncRNAs and miRNAs of NUSAP1 through both experimental and bioinformatic methods. We screened upstream lncRNAs and miRNAs of NUSAP1 through multiple databases based on ceRNA theory. Then, in vitro and in vivo experiments were performed to elucidate the relevant biological significance and regulatory mechanism among them. Finally, the potential downstream mechanism was discussed. LINC01393 and miR-128-3p were screened as upstream regulatory molecules of NUSAP1 by TCGA and ENCORI databases. The negative correlations among them were confirmed in clinical specimens. Biochemical studies revealed that overexpression or knockdown of LINC01393 respectively enhanced or inhibited malignant phenotype of GBM cells. MiR-128-3p inhibitor reversed LINC01393 knockdown-mediated impacts on GBM cells. Then, dual-luciferase reporter assay and RNA immunoprecipitation assay were conducted to validate LINC01393/miR-128-3p/NUSAP1 interactions. In vivo, LINC01393-knockdown decreased tumor growth and improved mice survival, while restoration of NUSAP1 partially reversed these effects. Additionally, enrichment analysis and western blot revealed that the roles of LINC01393 and NUSAP1 in GBM progression were associated with NF-κB activation. Our findings showed that LINC01393 sponged miR-128-3p to upregulate NUSAP1, thereby promoting GBM development and progression via activating NF-κB pathway. This work deepens understanding of GBM mechanisms and provides potential novel therapeutic targets for GBM.
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Affiliation(s)
- Deheng Li
- Department of Neurosurgery, Fudan University Shanghai Cancer Center, Shanghai 200032, China
- Department of Oncology, Shanghai Medical College of Fudan University, Shanghai 200032, China
| | - Junda Hu
- Department of Neurosurgery, Fudan University Shanghai Cancer Center, Shanghai 200032, China
- Department of Oncology, Shanghai Medical College of Fudan University, Shanghai 200032, China
| | - Sen Li
- Department of Neurosurgery, Fudan University Shanghai Cancer Center, Shanghai 200032, China
- Department of Oncology, Shanghai Medical College of Fudan University, Shanghai 200032, China
| | - Changshuai Zhou
- Department of Neurosurgery, Fudan University Shanghai Cancer Center, Shanghai 200032, China
- Department of Oncology, Shanghai Medical College of Fudan University, Shanghai 200032, China
| | - Mingtao Feng
- Department of Neurosurgery, Fudan University Shanghai Cancer Center, Shanghai 200032, China
- Department of Oncology, Shanghai Medical College of Fudan University, Shanghai 200032, China
| | - Liangdong Li
- Department of Neurosurgery, Fudan University Shanghai Cancer Center, Shanghai 200032, China
- Department of Oncology, Shanghai Medical College of Fudan University, Shanghai 200032, China
| | - Yang Gao
- Department of Neurosurgery, Fudan University Shanghai Cancer Center, Shanghai 200032, China
- Department of Oncology, Shanghai Medical College of Fudan University, Shanghai 200032, China
| | - Xin Chen
- Department of Neurosurgery, Fudan University Shanghai Cancer Center, Shanghai 200032, China
- Department of Oncology, Shanghai Medical College of Fudan University, Shanghai 200032, China
| | - Xiaojun Wu
- Department of Neurosurgery, Fudan University Shanghai Cancer Center, Shanghai 200032, China
- Department of Oncology, Shanghai Medical College of Fudan University, Shanghai 200032, China
| | - Yiqun Cao
- Department of Neurosurgery, Fudan University Shanghai Cancer Center, Shanghai 200032, China
- Department of Oncology, Shanghai Medical College of Fudan University, Shanghai 200032, China
| | - Bin Hao
- Department of Neurosurgery, Fudan University Shanghai Cancer Center, Shanghai 200032, China
- Department of Oncology, Shanghai Medical College of Fudan University, Shanghai 200032, China
| | - Lei Chen
- Department of Neurosurgery, Fudan University Shanghai Cancer Center, Shanghai 200032, China
- Department of Oncology, Shanghai Medical College of Fudan University, Shanghai 200032, China
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Hu X, Han Y, Liu J, Wang H, Tian Z, Zhang X, Zhang Y, Wang X. CTP synthase 2 predicts inferior survival and mediates DNA damage response via interacting with BRCA1 in chronic lymphocytic leukemia. Exp Hematol Oncol 2023; 12:6. [PMID: 36635772 PMCID: PMC9835321 DOI: 10.1186/s40164-022-00364-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Accepted: 12/29/2022] [Indexed: 01/13/2023] Open
Abstract
BACKGROUND Cytidine triphosphate synthase 2 (CTPS2) is an essential metabolic enzyme that catalyzes the biosynthesis of CTP. CTP synthases contribute to lymphocytes proliferation and tumorigenesis, but the role of CTPS2 in chronic lymphocytic leukemia (CLL) remains undefined. METHODS In silico analysis was performed to quantified the expression and clinical analysis of CTPS2 and BRCA1. The expression was then validated on the internal sets. Loss-and gain-of-function assays were conducted to investigate the physiological phenotypes in CLL. RNA-seq was employed to probe the molecular mechanism of CTPS2. RESULTS Herein, significant elevated expression of CTPS2 was observed in CLL patients compared to normal CD19 + B cells, which was verified in three independent cohorts. Furthermore, overexpression of CTPS2 was closely associated with undesired prognostic indicators, including unmutated IGHV status and chromosome 11q23 deletion. Additionally, elevated CTPS2 expression predicted adverse overall survival and treatment-free survival with independent prognostic significance. Downregulation of CTPS2 in CLL cells exhibited attenuated cell proliferation, arrested G2/M cell cycle and increased apoptosis. The addition of CTP or glutamine could reverse the above effects. Since RNA-seq showed the enrichment in DNA damage and response signaling, we subsequently found that silence of CTPS2 remarkably elevated DNA damage and decreased DNA repair. It was demonstrated that CTPS2 mediated DNA damage response via interacting with Breast Cancer 1 (BRCA1) protein in CLL through CoIP assays and rescued experiments. CONCLUSIONS Collectively, our study generated the novel findings that CTPS2 promoted CLL progression via DNA damage response and repair pathway. Targeting nucleotide metabolism potentially became an attractive strategy for treatment against CLL.
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Affiliation(s)
- Xinting Hu
- grid.27255.370000 0004 1761 1174Department of Hematology, Shandong Provincial Hospital, Shandong University, No.324, Jingwu Road, Jinan, 250021 Shandong China ,Shandong Provincial Engineering Research Center of Lymphoma, Jinan, 250021 Shandong China ,Branch of National Clinical Research Center for Hematologic Diseases, Jinan, 250021 Shandong China ,grid.429222.d0000 0004 1798 0228National Clinical Research Center for Hematologic Diseases, The First Affiliated Hospital of Soochow University, Suzhou, 251006 China
| | - Yang Han
- grid.460018.b0000 0004 1769 9639Department of Hematology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, No.324, Jingwu Road, Jinan, 250021 Shandong China ,Shandong Provincial Engineering Research Center of Lymphoma, Jinan, 250021 Shandong China ,Branch of National Clinical Research Center for Hematologic Diseases, Jinan, 250021 Shandong China ,grid.429222.d0000 0004 1798 0228National Clinical Research Center for Hematologic Diseases, The First Affiliated Hospital of Soochow University, Suzhou, 251006 China
| | - Jiarui Liu
- grid.460018.b0000 0004 1769 9639Department of Hematology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, No.324, Jingwu Road, Jinan, 250021 Shandong China ,Shandong Provincial Engineering Research Center of Lymphoma, Jinan, 250021 Shandong China ,Branch of National Clinical Research Center for Hematologic Diseases, Jinan, 250021 Shandong China ,grid.429222.d0000 0004 1798 0228National Clinical Research Center for Hematologic Diseases, The First Affiliated Hospital of Soochow University, Suzhou, 251006 China
| | - Hua Wang
- grid.460018.b0000 0004 1769 9639Department of Hematology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, No.324, Jingwu Road, Jinan, 250021 Shandong China ,Shandong Provincial Engineering Research Center of Lymphoma, Jinan, 250021 Shandong China ,Branch of National Clinical Research Center for Hematologic Diseases, Jinan, 250021 Shandong China ,grid.429222.d0000 0004 1798 0228National Clinical Research Center for Hematologic Diseases, The First Affiliated Hospital of Soochow University, Suzhou, 251006 China
| | - Zheng Tian
- grid.27255.370000 0004 1761 1174Department of Hematology, Shandong Provincial Hospital, Shandong University, No.324, Jingwu Road, Jinan, 250021 Shandong China ,Shandong Provincial Engineering Research Center of Lymphoma, Jinan, 250021 Shandong China ,Branch of National Clinical Research Center for Hematologic Diseases, Jinan, 250021 Shandong China ,grid.429222.d0000 0004 1798 0228National Clinical Research Center for Hematologic Diseases, The First Affiliated Hospital of Soochow University, Suzhou, 251006 China
| | - Xin Zhang
- grid.27255.370000 0004 1761 1174Department of Hematology, Shandong Provincial Hospital, Shandong University, No.324, Jingwu Road, Jinan, 250021 Shandong China ,Shandong Provincial Engineering Research Center of Lymphoma, Jinan, 250021 Shandong China ,Branch of National Clinical Research Center for Hematologic Diseases, Jinan, 250021 Shandong China ,grid.429222.d0000 0004 1798 0228National Clinical Research Center for Hematologic Diseases, The First Affiliated Hospital of Soochow University, Suzhou, 251006 China
| | - Ya Zhang
- grid.460018.b0000 0004 1769 9639Department of Hematology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, No.324, Jingwu Road, Jinan, 250021 Shandong China ,Shandong Provincial Engineering Research Center of Lymphoma, Jinan, 250021 Shandong China ,Branch of National Clinical Research Center for Hematologic Diseases, Jinan, 250021 Shandong China ,grid.429222.d0000 0004 1798 0228National Clinical Research Center for Hematologic Diseases, The First Affiliated Hospital of Soochow University, Suzhou, 251006 China
| | - Xin Wang
- grid.27255.370000 0004 1761 1174Department of Hematology, Shandong Provincial Hospital, Shandong University, No.324, Jingwu Road, Jinan, 250021 Shandong China ,grid.460018.b0000 0004 1769 9639Department of Hematology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, No.324, Jingwu Road, Jinan, 250021 Shandong China ,Shandong Provincial Engineering Research Center of Lymphoma, Jinan, 250021 Shandong China ,Branch of National Clinical Research Center for Hematologic Diseases, Jinan, 250021 Shandong China ,grid.429222.d0000 0004 1798 0228National Clinical Research Center for Hematologic Diseases, The First Affiliated Hospital of Soochow University, Suzhou, 251006 China
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Costa DFD, Filiú-Braga LDDC, Silva-Carvalho AÉ, Schiavinato JL, Vasconcelos MCCD, Figueiredo-Pontes LLD, Lucena-Araujo AR, Saldanha-Araujo F. Transcriptional deregulation of LSD1 and LSD2 is associated with cytogenetic risk in chronic lymphocytic leukemia. Leuk Lymphoma 2022; 63:3227-3231. [PMID: 36016463 DOI: 10.1080/10428194.2022.2116935] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Daniel Freitas da Costa
- Laboratório de Hematologia e Células-Tronco, Universidade de Brasília, Brasilia, Brasil.,Laboratório de Farmacologia Molecular, Universidade de Brasília, Brasilia, Brasil
| | | | | | | | | | | | | | - Felipe Saldanha-Araujo
- Laboratório de Hematologia e Células-Tronco, Universidade de Brasília, Brasilia, Brasil.,Laboratório de Farmacologia Molecular, Universidade de Brasília, Brasilia, Brasil
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Wang Z, Jia R, Wang L, Yang Q, Hu X, Fu Q, Zhang X, Li W, Ren Y. The Emerging Roles of Rad51 in Cancer and Its Potential as a Therapeutic Target. Front Oncol 2022; 12:935593. [PMID: 35875146 PMCID: PMC9300834 DOI: 10.3389/fonc.2022.935593] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Accepted: 05/26/2022] [Indexed: 12/03/2022] Open
Abstract
Defects in DNA repair pathways are emerging hallmarks of cancer. Accurate DNA repairs and replications are essential for genomic stability. Cancer cells require residual DNA repair capabilities to repair the damage from replication stress and genotoxic anti-tumor agents. Defective DNA repair also promotes the accumulation of genomic changes that eventually lead to tumorigenesis, tumor progression, and therapeutic resistance to DNA-damaging anti-tumor agents. Rad51 recombinase is a critical effector of homologous recombination, which is an essential DNA repair mechanism for double-strand breaks. Rad51 has been found to be upregulated in many malignant solid tumors, and is correlated with poor prognosis. In multiple tumor types, Rad51 is critical for tumor metabolism, metastasis and drug resistance. Herein, we initially introduced the structure, expression pattern of Rad51 and key Rad51 mediators involved in homologous recombination. Additionally, we primarily discussed the role of Rad51 in tumor metabolism, metastasis, resistance to chemotherapeutic agents and poly-ADP ribose polymerase inhibitors.
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Affiliation(s)
- Ziyi Wang
- Department of Thoracic Surgery, Shenyang Chest Hospital & Tenth People’s Hospital, Shenyang, China
- Department of Thoracic Surgery, First Affiliated Hospital of China Medical University, Shenyang, China
| | - Renxiang Jia
- Department of Thoracic Surgery, Shenyang Chest Hospital & Tenth People’s Hospital, Shenyang, China
| | - Linlin Wang
- Department of Thoracic Surgery, Shenyang Chest Hospital & Tenth People’s Hospital, Shenyang, China
| | - Qiwei Yang
- Department of Thoracic Surgery, First Affiliated Hospital of China Medical University, Shenyang, China
| | - Xiaohai Hu
- Department of Thoracic Surgery, First Affiliated Hospital of China Medical University, Shenyang, China
| | - Qiang Fu
- Department of Thoracic Surgery, First Affiliated Hospital of China Medical University, Shenyang, China
| | - Xinyu Zhang
- Department of Thoracic Surgery, First Affiliated Hospital of China Medical University, Shenyang, China
| | - Wenya Li
- Department of Thoracic Surgery, First Affiliated Hospital of China Medical University, Shenyang, China
- *Correspondence: Yi Ren, ; Wenya Li,
| | - Yi Ren
- Department of Thoracic Surgery, Shenyang Chest Hospital & Tenth People’s Hospital, Shenyang, China
- *Correspondence: Yi Ren, ; Wenya Li,
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Li L, Han C, Yu X, Shen J, Cao Y. Targeting AraC-Resistant Acute Myeloid Leukemia by Dual Inhibition of CDK9 and Bcl-2: A Systematic Review and Meta-Analysis. JOURNAL OF HEALTHCARE ENGINEERING 2022; 2022:2842066. [PMID: 35126914 PMCID: PMC8808115 DOI: 10.1155/2022/2842066] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/14/2021] [Revised: 12/13/2021] [Accepted: 01/03/2022] [Indexed: 12/20/2022]
Abstract
PURPOSE This study aims to determine the influence of targeting araC-resistant acute myeloid leukemia by dual inhibition cyclin-dependent protein kinase (CDK9) and B-cell lymphoma-2 (Bcl-2). METHOD The c-Myc inhibitor 10058-F4 and the CDK9 inhibitor AZD4573 were used to determine the cell cycle arrest and apoptosis. RESULTS 10058-F4 reduces c-Myc protein levels and suppresses HepG2 cell proliferation, possibly by upregulating cyclin-dependent kinase (CDK) inhibitors, p21WAF1, and reducing intracellular alpha-fetal protein (AFP) levels. CONCLUSION The combination of AZD4573 and 10058-F4 has a synergistic anti-araC-resistant AML activity, providing a solid database for the aforementioned scientific hypothesis.
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Affiliation(s)
- Linzhang Li
- Department of Laboratory Medicine, China-Japan Friendship Hospital, Beijing, China
| | - Chengwu Han
- Department of Laboratory Medicine, China-Japan Friendship Hospital, Beijing, China
| | - Xueying Yu
- Department of Laboratory Medicine, China-Japan Friendship Hospital, Beijing, China
| | - Jun Shen
- Department of Laboratory Medicine, China-Japan Friendship Hospital, Beijing, China
| | - Yongtong Cao
- Department of Laboratory Medicine, China-Japan Friendship Hospital, Beijing, China
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