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Cui Y, Shao X, Yang H, Xin J, Liu Y, Zhang M, Sun C, Chen G, Shen G, Meng X, Chen Y. MDM2 inhibitor APG-115 synergizes with ABT-199 to induce cell apoptosis in chronic lymphocytic leukemia. Front Pharmacol 2024; 15:1441383. [PMID: 39144622 PMCID: PMC11321975 DOI: 10.3389/fphar.2024.1441383] [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: 05/31/2024] [Accepted: 07/16/2024] [Indexed: 08/16/2024] Open
Abstract
Although clinical outcomes in chronic lymphocytic leukemia (CLL) have greatly improved with several approved small molecular inhibitors, acquired resistance does occur, leading to disease progression and eventual death. Thus, the effort to explore novel inhibitors and combination therapeutic regimens is needed. The inhibition of MDM2-p53 interaction to restore p53 function has been regarded as a potential strategy for treating different cancers. We investigated the effects of novel MDM2 inhibitor APG-115 in CLL. We found that APG-115 treatment upregulated the expression of p53, MDM2, and p21 at the mRNA and protein level. APG-115 inhibited cell proliferation, induced apoptosis, and arrested the cell cycle at G0/G1 stage. Moreover, APG-115 inhibited the expression of BCL-2, BCL-xL, and MCL-1, and suppressed the activation of AKT and ERK signaling pathways. APG-115 combined with the BCL2 inhibitor, ABT-199 (venetoclax), led to further inhibition of the expression of BCL-2 family anti-apoptotic proteins and consequently enhanced cell death. Collectively, this study demonstrates that APG-115 activates p53 and thus inhibits multiple pro-survival mechanisms, which provides a rational explanation for APG-115 efficiency in inducing cell apoptosis in CLL. The synergistic effect of APG-115 with ABT-199 suggested a potential combination application in CLL therapy.
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Affiliation(s)
- Ying Cui
- Henan International Joint Laboratory of Thrombosis and Hemostasis, School of Basic Medical Science, Henan University of Science and Technology, Luoyang, China
| | - Xiaoya Shao
- The Second Affiliated Hospital, Henan University of Science and Technology, Luoyang, China
| | - Haiping Yang
- The First Affiliated Hospital, Henan University of Science and Technology, Luoyang, China
| | - Jingyi Xin
- The First Affiliated Hospital, Henan University of Science and Technology, Luoyang, China
| | - Yuanyuan Liu
- Henan International Joint Laboratory of Thrombosis and Hemostasis, School of Basic Medical Science, Henan University of Science and Technology, Luoyang, China
| | - Mingxiao Zhang
- Luoyang Key Laboratory of POCT Diagnosis Technology, Luoyang, China
- Zhongyuan Scholars Workstation of Henan, Luoyang Polytechnic, Luoyang, China
| | - Chuanyue Sun
- Henan International Joint Laboratory of Thrombosis and Hemostasis, School of Basic Medical Science, Henan University of Science and Technology, Luoyang, China
| | - Ge Chen
- Luoyang Key Laboratory of POCT Diagnosis Technology, Luoyang, China
- Zhongyuan Scholars Workstation of Henan, Luoyang Polytechnic, Luoyang, China
| | - Guomin Shen
- Henan International Joint Laboratory of Thrombosis and Hemostasis, School of Basic Medical Science, Henan University of Science and Technology, Luoyang, China
| | - Xueqiong Meng
- Luoyang Key Laboratory of POCT Diagnosis Technology, Luoyang, China
- Zhongyuan Scholars Workstation of Henan, Luoyang Polytechnic, Luoyang, China
- Henan Engineering Research Center of Key Immunological Biomaterials, Luoyang Polytechnic, Luoyang, China
| | - Yixiang Chen
- Luoyang Key Laboratory of POCT Diagnosis Technology, Luoyang, China
- Zhongyuan Scholars Workstation of Henan, Luoyang Polytechnic, Luoyang, China
- Henan Engineering Research Center of Key Immunological Biomaterials, Luoyang Polytechnic, Luoyang, China
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Deng X, Zhang M, Wang J, Zhou X, Xiao M. Characterization of clonal immunoglobulin heavy V-D-J gene rearrangements in Chinese patients with chronic lymphocytic leukemia: Clinical features and molecular profiles. Front Oncol 2023; 13:1120867. [PMID: 36874132 PMCID: PMC9978106 DOI: 10.3389/fonc.2023.1120867] [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: 12/10/2022] [Accepted: 01/26/2023] [Indexed: 02/18/2023] Open
Abstract
Introduction Several prognostic factors of chronic lymphocytic leukemia (CLL) have been identified, such as cytogenetic aberrations and recurrent gene mutations. B-cell receptor (BCR) signaling plays an important role in the tumorigenesis of CLL, and its clinical significance in predicting prognosis is also under study. Methods Therefore, we assessed the already-known prognostic markers, immunoglobulin heavy chain (IGH) gene usage and the associations among these factors in 71 patients diagnosed with CLL in our center from October 2017 to March 2022. Sequencing of IGH gene rearrangements was performed using Sanger sequencing or IGH-based next-generation sequencing, and the results were further analyzed for distinct IGH/IGHD/IGHJ genes and the mutational status of the clonotypic IGHV (IGH variable) gene. Results In summary, by analyzing the distribution of potential prognostic factors in CLL patients, we displayed a landscape of molecular profiles, confirmed the predictive value of recurrent genetic mutations and chromosome aberrations, and found that IGHJ3 was associated with favorable markers (mutated IGHV, trisomy 12), while IGHJ6 tended to correlate with unfavorable factors (unmutated IGHV, del17p). Discussion These results provided an indication for IGH gene sequencing in predicting the prognosis of CLL.
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Affiliation(s)
- Xinyue Deng
- Department of Hematology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China.,Immunotherapy Research Center for Hematologic Diseases of Hubei Province, Wuhan, Hubei, China
| | - Meilan Zhang
- Department of Hematology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China.,Immunotherapy Research Center for Hematologic Diseases of Hubei Province, Wuhan, Hubei, China
| | - Jiachen Wang
- Department of Hematology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China.,Immunotherapy Research Center for Hematologic Diseases of Hubei Province, Wuhan, Hubei, China
| | - Xiaoxi Zhou
- Department of Hematology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China.,Immunotherapy Research Center for Hematologic Diseases of Hubei Province, Wuhan, Hubei, China
| | - Min Xiao
- Department of Hematology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China.,Immunotherapy Research Center for Hematologic Diseases of Hubei Province, Wuhan, Hubei, China
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Zheng Y, Weng X, Hu D, He J. Identification of a signature based on non‐apoptotic regulatory cell death to improve prognosis prediction in acute myeloid leukaemia. Br J Haematol 2022; 201:95-105. [PMID: 36484284 DOI: 10.1111/bjh.18601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Revised: 11/25/2022] [Accepted: 11/28/2022] [Indexed: 12/13/2022]
Abstract
Although anti-apoptotic cell death is a common feature of cancer and non-apoptotic regulatory cell death (RCD) is highly correlated with cancer progression and response to therapy, its prognostic role in patients with acute myeloid leukaemia (AML) is unknown. The RNA sequence and clinical data from AML patients were downloaded from the TCGA and GEO databases. The prognostic characteristics of non-apoptotic RCD-related genes (NRGs) were determined by Cox and LASSO regression analysis. Thirteen NRG signatures were identified as independent prognostic parameters in patients with AML that outperformed other prognostic models. Higher NRG scores were associated with shorter survival and less retention of tumour mutations. Although patients with high NRG risk have abundant signalling pathways for cell adhesion, cytokine upregulation, and cellular defence responses, patients with low NRG risk may benefit the most from immunotherapy. Specifically, patients with high NRG score may benefit from treatment with anti-EGFR and CDK2 inhibitors, including erlotinib and roscovitine. The NPM1 and FLT3 mutant cell lines undergo alterations after multiple drug treatments. Our established NRG signature and scoring highlight its vital clinical significance, emphasize the inevitability of stratifying treatment for different mutation subtypes and provide new ideas to guide personalized immunotherapy strategies for AML patients.
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Affiliation(s)
- Yu Zheng
- Key State Laboratory of Medical Genomics, National Center for Translational Medicine in Shanghai, Institute of Hematology Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine Shanghai China
| | - Xiangqin Weng
- Key State Laboratory of Medical Genomics, National Center for Translational Medicine in Shanghai, Institute of Hematology Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine Shanghai China
| | - Dong Hu
- Center for Stem Cell Research and Application, Union Hospital, Tongji Medical College Huazhong University of Science and Technology Wuhan China
| | - Jing He
- Institute of Hematology, Union Hospital, Tongji Medical College Huazhong University of Science and Technology Wuhan China
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Rosenquist R, Fröhling S, Stamatopoulos K. Precision Medicine in Cancer - A Paradigm Shift. Semin Cancer Biol 2022; 84:1-2. [PMID: 35597437 DOI: 10.1016/j.semcancer.2022.05.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Richard Rosenquist
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden; Clinical Genetics, Karolinska University Laboratory, Karolinska University Hospital, Solna, Sweden.
| | - Stefan Fröhling
- Department of Translational Medical Oncology, National Center for Tumor Diseases (NCT) Heidelberg, German Cancer Research Center (DKFZ), Heidelberg, Germany; German Cancer Consortium (DKTK), Heidelberg, Germany
| | - Kostas Stamatopoulos
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden; Institute of Applied Biosciences, Centre for Research and Technology Hellas, Thessaloniki, Greece
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