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Lorenz L, Zenz T, Oliinyk D, Meier-Rosar F, Jenke R, Aigner A, Büch T. Vorinostat Treatment of Gastric Cancer Cells Leads to ROS-Induced Cell Inhibition and a Complex Pattern of Molecular Alterations in Nrf2-Dependent Genes. Pharmaceuticals (Basel) 2024; 17:1080. [PMID: 39204185 PMCID: PMC11357633 DOI: 10.3390/ph17081080] [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: 07/10/2024] [Revised: 08/08/2024] [Accepted: 08/13/2024] [Indexed: 09/03/2024] Open
Abstract
Histone deacetylase inhibitors (HDACi) show high antineoplastic potential in preclinical studies in various solid tumors, including gastric carcinoma; however, their use in clinical studies has not yet yielded convincing efficacies. Thus, further studies on cellular/molecular effects of HDACi are needed, for improving clinical efficacy and identifying suitable combination partners. Here, we investigated the role of oxidative stress in gastric cancer cells upon treatment with HDACi. A particular focus was laid on the role of the Nrf2 pathway, which can mediate resistance to cell-inhibitory effects of reactive oxidative species (ROS). Using fluorescence-based ROS sensors, oxidative stress was measured in human gastric cancer cell lines. Activation of the Nrf2 pathway was monitored in luciferase reporter assays as well as by mRNA and proteomic expression analyses of Nrf2 regulators and Nrf2-induced genes. Furthermore, the effects of ROS scavenger N-acetyl-L-cysteine (NAC) and Nrf2-knockdown on HDACi-dependent antiproliferative effects were investigated in colorimetric formazan-based and clonogenic survival assays. HDACi treatment led to increased oxidative stress levels and consequently, treatment with NAC reduced cytotoxicity of HDACi. In addition, vorinostat treatment stimulated expression of a luciferase reporter under the control of an antioxidative response element, indicating activation of the Nrf2 system. This Nrf2 activation was only partially reversible by treatment with NAC, suggesting ROS independent pathways to contribute to HDACi-promoted Nrf2 activation. In line with its cytoprotective role, Nrf2 knockdown led to a sensitization against HDACi. Accordingly, the expression of antioxidant and detoxifying Nrf2 target genes was upregulated upon HDACi treatment. In conclusion, oxidative stress induction upon HDAC inhibition contributes to the antitumor effects of HDAC inhibitors, and activation of Nrf2 represents a potentially important adaptive response of gastric cancer cells in this context.
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Affiliation(s)
- Leoni Lorenz
- Clinical Pharmacology, Rudolf-Boehm-Institute for Pharmacology and Toxicology, Medical Faculty, Leipzig University, 04107 Leipzig, Germany (T.Z.); (R.J.)
| | - Tamara Zenz
- Clinical Pharmacology, Rudolf-Boehm-Institute for Pharmacology and Toxicology, Medical Faculty, Leipzig University, 04107 Leipzig, Germany (T.Z.); (R.J.)
| | - Denys Oliinyk
- Functional Proteomics, Research Center Lobeda, Jena University Hospital, 07747 Jena, Germany; (D.O.); (F.M.-R.)
- Comprehensive Cancer Center Central Germany (CCCG), 04103 Leipzig, Germany
- Comprehensive Cancer Center Central Germany (CCCG), 07743 Jena, Germany
| | - Florian Meier-Rosar
- Functional Proteomics, Research Center Lobeda, Jena University Hospital, 07747 Jena, Germany; (D.O.); (F.M.-R.)
- Comprehensive Cancer Center Central Germany (CCCG), 04103 Leipzig, Germany
- Comprehensive Cancer Center Central Germany (CCCG), 07743 Jena, Germany
| | - Robert Jenke
- Clinical Pharmacology, Rudolf-Boehm-Institute for Pharmacology and Toxicology, Medical Faculty, Leipzig University, 04107 Leipzig, Germany (T.Z.); (R.J.)
- Comprehensive Cancer Center Central Germany (CCCG), 04103 Leipzig, Germany
- Comprehensive Cancer Center Central Germany (CCCG), 07743 Jena, Germany
- University Cancer Center Leipzig (UCCL), University Hospital Leipzig, 04103 Leipzig, Germany
| | - Achim Aigner
- Clinical Pharmacology, Rudolf-Boehm-Institute for Pharmacology and Toxicology, Medical Faculty, Leipzig University, 04107 Leipzig, Germany (T.Z.); (R.J.)
- Comprehensive Cancer Center Central Germany (CCCG), 04103 Leipzig, Germany
- Comprehensive Cancer Center Central Germany (CCCG), 07743 Jena, Germany
| | - Thomas Büch
- Clinical Pharmacology, Rudolf-Boehm-Institute for Pharmacology and Toxicology, Medical Faculty, Leipzig University, 04107 Leipzig, Germany (T.Z.); (R.J.)
- Comprehensive Cancer Center Central Germany (CCCG), 04103 Leipzig, Germany
- Comprehensive Cancer Center Central Germany (CCCG), 07743 Jena, Germany
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Tanabe S, Quader S, Cabral H, Perkins EJ, Yokozaki H, Sasaki H. Master Regulators of Causal Networks in Intestinal- and Diffuse-Type Gastric Cancer and the Relation to the RNA Virus Infection Pathway. Int J Mol Sci 2024; 25:8821. [PMID: 39201509 PMCID: PMC11354771 DOI: 10.3390/ijms25168821] [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: 07/01/2024] [Revised: 08/05/2024] [Accepted: 08/07/2024] [Indexed: 09/02/2024] Open
Abstract
Causal networks are important for understanding disease signaling alterations. To reveal the network pathways affected in the epithelial-mesenchymal transition (EMT) and cancer stem cells (CSCs), which are related to the poor prognosis of cancer, the molecular networks and gene expression in diffuse- and intestinal-type gastric cancer (GC) were analyzed. The network pathways in GC were analyzed using Ingenuity Pathway Analysis (IPA). The analysis of the probe sets in which the gene expression had significant differences between diffuse- and intestinal-type GC in RNA sequencing of the publicly available data identified 1099 causal networks in diffuse- and intestinal-type GC. Master regulators of the causal networks included lenvatinib, pyrotinib, histone deacetylase 1 (HDAC1), mir-196, and erb-b2 receptor tyrosine kinase 2 (ERBB2). The analysis of the HDAC1-interacting network identified the involvement of EMT regulation via the growth factors pathway, the coronavirus pathogenesis pathway, and vorinostat. The network had RNA-RNA interactions with microRNAs such as mir-10, mir-15, mir-17, mir-19, mir-21, mir-223, mir-25, mir-27, mir-29, and mir-34. The molecular networks revealed in the study may lead to identifying drug targets for GC.
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Affiliation(s)
- Shihori Tanabe
- Division of Risk Assessment, Center for Biological Safety and Research, National Institute of Health Sciences, Kawasaki 210-9501, Japan
| | - Sabina Quader
- Innovation Centre of NanoMedicine (iCONM), Kawasaki Institute of Industrial Promotion, Kawasaki 210-0821, Japan
| | - Horacio Cabral
- Department of Bioengineering, Graduate School of Engineering, The University of Tokyo, Tokyo 113-0033, Japan
| | - Edward J. Perkins
- US Army Engineer Research and Development Center, Vicksburg, MS 39180, USA
| | - Hiroshi Yokozaki
- Department of Pathology, Kobe University Graduate School of Medicine, Kobe 650-0017, Japan
| | - Hiroki Sasaki
- Department of Pharmacology and Therapeutics, National Cancer Center Research Institute, Tokyo 104-0045, Japan
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Guang D, Xiaofei Z, Yu M, Hui N, Min S, Xiaonan S. Pomiferin targeting SLC9A9 based on histone acetylation modification pattern is a potential therapeutical option for gastric cancer with high malignancy. Biochem Pharmacol 2024; 226:116333. [PMID: 38824966 DOI: 10.1016/j.bcp.2024.116333] [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: 12/10/2023] [Revised: 05/30/2024] [Accepted: 05/30/2024] [Indexed: 06/04/2024]
Abstract
Changes in histone acetylation status are associated with gastric cancer (GC) progression. Pomiferin is a natural flavonoid, however, the specific role of pomiferin in the treatment of GC is still unclear, and its targets are not well clarified. In this work, the prognostic genes related with histone acetylation in GC were screened by univariate Cox analysis. Next, a risk model of was constructed using least absolute shrinkage and selection operator-Cox regression analyses, and multivariate Cox analysis was used for identifying the independent risk factor. Molecular docking was performed using AutoDock Vina to validate the interaction between solute carrier family 9 member A9 (SLC9A9) and pomiferin. In vitro and in vivo models were applied to investigate the tumor-suppressive role of pomiferin against GC. The inhibitory effects of pomiferin on EGFR/PI3K/AKT signaling were valdiated by Western blotting, immunofluorescence staining and qPCR. Here, a prognostic risk model based on histone acetylation regulators was established, and SLC9A9 was identified as a risk factor associated with histone acetylation status in GC. SLC9A9 expression was associated with abnormal immune microenvironment of tumor. Pomiferin had a high binding affinity with SLC9A9, and both pomiferin treatment and depletion of SLC9A9 repressed the malignant phenotypes of GC cells. Mechanistically, pomiferin inactivates EGFR/PI3K/AKT signaling in GC cells. In summary, SLC9A9, as a indicator of abnormal histone acetylation status of GC, functions as an oncogenic factor. Pomiferin binds with SLC9A9 to inactivate EGFR/PI3K/AKT pathway, to block GC progression, suggesting it is a promising drug for the patients with highly malignant GC.
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Affiliation(s)
- Deng Guang
- Department of Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan, China
| | - Zhang Xiaofei
- Department of Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan, China
| | - Meng Yu
- Department of Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan, China
| | - Niu Hui
- Department of Respiratory, Zhoukou City Central Hospital, Zhoukou 466000, Henan, China
| | - Song Min
- Department of Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan, China.
| | - Shi Xiaonan
- Department of Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan, China.
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4
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Liu S, Wang Z, Hu L, Ye C, Zhang X, Zhu Z, Li J, Shen Q. Pan-cancer analysis of super-enhancer-induced LINC00862 and validation as a SIRT1-promoting factor in cervical cancer and gastric cancer. Transl Oncol 2024; 45:101982. [PMID: 38718436 PMCID: PMC11097084 DOI: 10.1016/j.tranon.2024.101982] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2024] [Revised: 04/18/2024] [Accepted: 04/30/2024] [Indexed: 05/19/2024] Open
Abstract
Immune checkpoints inhibitors are effective but it needs more precise biomarkers for patient selection. We explored the biological significance of LINC00862 in pan-cancer by bioinformatics. And we studied its regulatory mechanisms using chromatin immunoprecipitation and RNA immunoprecipitation assays etc. TCGA and single-cell sequencing data analysis indicated that LINC00862 was overexpressed in the majority of tumor and stromal cells, which was related with poor prognosis. LINC00862 expression was related with immune cell infiltration and immune checkpoints expression, and had a high predictive value for immunotherapy efficacy. Mechanistically, LINC00862 competitively bound to miR-29c-3p to unleash SIRT1's tumor-promoting function. SIRT1 inhibitor-EX527 were screened by virtual screening and verified by in vitro and vivo assays. Notably, acetyltransferase P300-mediated super-enhancer activity stimulated LINC00862 transcription. Collectively, LINC00862 could be a diagnostic and prognostic biomarker. LINC00862 could also be a predictive biomarker for immunotherapy efficacy. Super-enhancer activity is the driver for LINC00862 overexpression in cervical cancer and gastric cancer.
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Affiliation(s)
- Shaojun Liu
- Department of General Surgery, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, Anhui, China
| | - Zhaohui Wang
- Department of Pathology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, Anhui, China
| | - Lei Hu
- Department of General Surgery, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, Anhui, China
| | - Chao Ye
- Department of Gastroenterology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, Anhui, China
| | - Xubin Zhang
- Department of General Surgery, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, Anhui, China
| | - Zhiqiang Zhu
- Department of General Surgery, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, Anhui, China
| | - Jiaqiu Li
- Clinical Research Center, Affiliated Hospital of Shandong Second Medical University, Shandong Second Medical University, Weifang 261031, Shandong, China.
| | - Qi Shen
- Department of Radiation Oncology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, Anhui, China.
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5
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Shi J, Wang J, Wang X, Qu C, Ye C, Li X, Chen X, Xu Z. Design, synthesis and antiproliferative evaluation of tetrahydro-β-carboline histone deacetylase inhibitors bearing an aliphatic chain linker. RSC Adv 2024; 14:12762-12771. [PMID: 38645526 PMCID: PMC11027041 DOI: 10.1039/d4ra01672f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2024] [Accepted: 04/03/2024] [Indexed: 04/23/2024] Open
Abstract
The use of histone deacetylase inhibitors (HDACis) is an effective approach for cancer treatment. In this work, a series of hydroxamic acid-based HDACis with a tetrahydro-β-carboline core and aliphatic linker have been designed and synthesized. The optimal compound 13d potently inhibited HDAC1 and showed good antiproliferative activity against different tumor cell lines in vitro. Molecular docking of 13d was conducted to rationalize the high binding affinity for HDAC1. Therefore, this work provides a new structure design for HDAC inhibitors and also offers a promising treatment for solid tumors.
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Affiliation(s)
- Jing Shi
- Department of Thoracic Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University Xi'an Shaanxi 710004 China +86-029-87679000
- Department of Respiratory and Endocrinology, The Second Affiliated Hospital of Xi'an Jiaotong University Xi'an 710004 Shaanxi China
| | - Jiayun Wang
- Shaanxi Key Labotory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University Yangling 712100 China +86-029-87092335
| | - Xingjie Wang
- Department of General Surgery, The First Affiliated Hospital of Xi'an Jiaotong University Xi'an 710061 Shaanxi China
| | - Chao Qu
- Department of General Surgery, The First Affiliated Hospital of Xi'an Jiaotong University Xi'an 710061 Shaanxi China
| | - Changchun Ye
- Department of General Surgery, The First Affiliated Hospital of Xi'an Jiaotong University Xi'an 710061 Shaanxi China
| | - Xiuli Li
- Department of Respiratory and Endocrinology, The Second Affiliated Hospital of Xi'an Jiaotong University Xi'an 710004 Shaanxi China
| | - Xin Chen
- Shaanxi Key Labotory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University Yangling 712100 China +86-029-87092335
| | - Zhengshui Xu
- Department of Thoracic Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University Xi'an Shaanxi 710004 China +86-029-87679000
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6
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Jiang Q, Tang Y, Hu Q, Wang B, Ruan X, Zhou Q. Discovery of novel itaconimide-based derivatives as potent HDAC inhibitors for the efficient treatment of prostate cancer. Eur J Med Chem 2024; 269:116315. [PMID: 38503167 DOI: 10.1016/j.ejmech.2024.116315] [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: 01/11/2024] [Revised: 03/07/2024] [Accepted: 03/07/2024] [Indexed: 03/21/2024]
Abstract
Histone deacetylases (HDACs) are a family of enzymes that play important roles in the development and progression of cancers. Inhibition of HDACs has been widely studied as a therapeutic strategy in the development of anticancer drugs. However, developing HDAC inhibitors that are effective for solid tumors remains a great challenge. In this work, we designed and synthesized a series of itaconimide-based derivatives as potent HDAC inhibitors. Among them, compound 17q exhibited potent inhibition of HDAC1/2/3/6, with good antiproliferative activity in vitro and an excellent pharmacokinetic profile. Compound 17q significantly inhibited tumor growth in a DU145 xenograft tumor model and showed no obvious toxicity. Moreover, when 17q was combined with other prostate cancer therapeutics, outstanding synergistic effects were observed and the toxic side effects of DTX were reduced. Overall, based on the data, these inhibitors may offer promising new targeted therapies for prostate cancer.
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Affiliation(s)
- Qihe Jiang
- State Key Laboratory of Natural Medicines, Department of Organic Chemistry, China Pharmaceutical University, Nanjing, 210009, China
| | - Yujiang Tang
- State Key Laboratory of Natural Medicines, Department of Organic Chemistry, China Pharmaceutical University, Nanjing, 210009, China
| | - Qinglan Hu
- State Key Laboratory of Natural Medicines, Department of Organic Chemistry, China Pharmaceutical University, Nanjing, 210009, China
| | - Bichuan Wang
- State Key Laboratory of Natural Medicines, Department of Organic Chemistry, China Pharmaceutical University, Nanjing, 210009, China
| | - Xiuqin Ruan
- State Key Laboratory of Natural Medicines, Department of Organic Chemistry, China Pharmaceutical University, Nanjing, 210009, China
| | - Qingfa Zhou
- State Key Laboratory of Natural Medicines, Department of Organic Chemistry, China Pharmaceutical University, Nanjing, 210009, China.
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7
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Chen X, Wang J, Zhao P, Dang B, Liang T, Steimbach RR, Miller AK, Liu J, Wang X, Zhang T, Luan X, Hu J, Gao J. Tetrahydro-β-carboline derivatives as potent histone deacetylase 6 inhibitors with broad-spectrum antiproliferative activity. Eur J Med Chem 2023; 260:115776. [PMID: 37660484 DOI: 10.1016/j.ejmech.2023.115776] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Revised: 08/28/2023] [Accepted: 08/28/2023] [Indexed: 09/05/2023]
Abstract
A series of tetrahydro-β-carboline (THβC)-based hydroxamic acids were rationally designed and synthesized as novel selective HDAC6 inhibitors (sHDAC6is) by the application of scaffold hopping strategy. Several THβC analogues were highly potent (IC50 < 5 nM) and selective against HDAC6 enzyme and exhibited good antiproliferative activity against human multiple myeloma (MM) cell. Molecular docking interpreted the structure activity relationship (SAR). Target engagement of HDAC6 was confirmed in RPMI-8226 cells using the WB assay. In vitro, (1S, 3R)-1-(4-chlorophenyl)-N-(4-(hydroxycarbamoyl)benzyl)-2,3,4,9-tetrahydro-1H-pyrido[3, 4-b]indole-3-carboxamide (14g) showed potent broad antiproliferative activity against various tumors including leukemia, colon cancer, melanoma, and breast cancer cell lines, better than ACY-1215. Moreover, 14g also showed good pharmacokinetics properties in mice via oral administration.
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Affiliation(s)
- Xin Chen
- Shaanxi Key Labotory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, 712100, PR China.
| | - Jiayun Wang
- Shaanxi Key Labotory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, 712100, PR China
| | - Peng Zhao
- Shaanxi Key Labotory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, 712100, PR China
| | - Baiyun Dang
- Shaanxi Key Labotory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, 712100, PR China
| | - Ting Liang
- Shaanxi Key Labotory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, 712100, PR China
| | - Raphael R Steimbach
- Cancer Drug Development Group, German Cancer Research Center (DKFZ), 69120, Heidelberg, Germany; Biosciences Faculty, University of Heidelberg, 69120, Heidelberg, Germany
| | - Aubry K Miller
- Cancer Drug Development Group, German Cancer Research Center (DKFZ), 69120, Heidelberg, Germany; German Cancer Consortium (DKTK), 69120, Heidelberg, Germany
| | - Jia Liu
- Pharmaceutical Animal Experimental Center, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing, 210009, PR China
| | - Xin Wang
- Department of Clinical Research Center, Chia Tai Tianqing Pharmaceutical Group Co.,Ltd, Jiangsu, China
| | - Tongtong Zhang
- Shaanxi Key Labotory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, 712100, PR China
| | - Xiaofa Luan
- Shaanxi Key Labotory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, 712100, PR China
| | - Jiadong Hu
- School of Medicinal and Chemical Engineering, Yangling Vocational & Technical College, 24 Weihui Road, Yangling, 712100, Shaanxi, PR China.
| | - Jinming Gao
- Shaanxi Key Labotory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, 712100, PR China.
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8
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Ding Y, Liu C, Zhang Y. Aging-related histone modification changes in brain function. IBRAIN 2023; 9:205-213. [PMID: 37786548 PMCID: PMC10528785 DOI: 10.1002/ibra.12106] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 05/04/2023] [Accepted: 05/05/2023] [Indexed: 10/04/2023]
Abstract
Aging can be defined as a decline of physiological function that is more difficult to reverse, characterized by the loss of the physiological integrity of tissues, organs, and cells of an organism over time. Normal aging is associated with structural and functional changes in the brain, involving neuronal apoptosis, synaptic structure, neurotransmission, and metabolism alterations, leading to impairment in sleep, cognitive functions, memory, learning, and motor and sensory systems. Histone modification is a significant aging-related epigenetic change that influences synaptic and mitochondrial function and immune and stress responses in the brain. This review discusses the changes in histone modifications that occur during brain aging, specifically methylation and acetylation, and the associated changes in gene transcription and protein expression. We observed that genes related to synaptic and mitochondrial function are downregulated in the aging brain, while genes related to immune response and inflammatory functions are upregulated.
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Affiliation(s)
- Yanwen Ding
- Department of AnesthesiologyThe Second Affiliated Hospital of Zunyi Medical UniversityZunyiGuizhouChina
- Guizhou Key Laboratory of Anesthesia and Organ ProtectionZunyi Medical UniversityZunyiGuizhouChina
- School of AnesthesiologyZunyi Medical UniversityZunyiGuizhouChina
| | - Chengxi Liu
- Guizhou Key Laboratory of Anesthesia and Organ ProtectionZunyi Medical UniversityZunyiGuizhouChina
| | - Yi Zhang
- Department of AnesthesiologyThe Second Affiliated Hospital of Zunyi Medical UniversityZunyiGuizhouChina
- Guizhou Key Laboratory of Anesthesia and Organ ProtectionZunyi Medical UniversityZunyiGuizhouChina
- School of AnesthesiologyZunyi Medical UniversityZunyiGuizhouChina
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Feng M, Xu H, Zhou W, Pan Y. The BRD4 inhibitor JQ1 augments the antitumor efficacy of abemaciclib in preclinical models of gastric carcinoma. J Exp Clin Cancer Res 2023; 42:44. [PMID: 36755269 PMCID: PMC9909925 DOI: 10.1186/s13046-023-02615-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Accepted: 02/02/2023] [Indexed: 02/10/2023] Open
Abstract
BACKGROUND Advanced gastric cancer (GC) is a lethal malignancy, harboring recurrent alterations in cell cycle pathway, especially the CDKN2A-CDK4/CDK6/CCND1 axis. However, monotherapy of CDK4/6 inhibitors has shown limited antitumor effects for GC, and combination treatments were urgently needed for CDK4/6 inhibitors. METHODS Here, we performed a comprehensive analysis, including drug screening, pan-cancer genomic dependency analysis, and epigenetic sequencing to identify the candidate combination with CDK4/6 inhibitors. Mechanisms were investigated by bulk RNA-sequencing and experimental validation was conducted on diverse in vitro or in vivo preclinical GC models. RESULTS We found that the BRD4 inhibitor JQ1 augments the antitumor efficacy of the CDK4/6 inhibitor abemaciclib (ABE). Diverse in vitro and in vivo preclinical GC models are examined and synergistic benefits from the combination therapy are obtained consistently. Mechanistically, the combination of ABE and JQ1 enhances the cell cycle arrest of GC cells and induces unique characteristics of cellular senescence through the induction of DNA damage, which is revealed by transcriptomic profiling and further validated by substantial in vitro and in vivo GC models. CONCLUSION This study thus proposes a candidate combination therapy of ABE and JQ1 to improve the therapeutic efficacy and worth further investigation in clinical trials for GC.
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Affiliation(s)
- Mei Feng
- Division of General Surgery, Peking University First Hospital, Peking University, No. 8 Xi Shiku Street, Beijing, 100034, China
| | - Hao Xu
- Division of General Surgery, Peking University First Hospital, Peking University, No. 8 Xi Shiku Street, Beijing, 100034, China
| | - Wenyuan Zhou
- NMPA Key Laboratory for Research and Evaluation of Radiopharmaceuticals (National Medical Products Administration), Department of Nuclear Medicine, Peking University Cancer Hospital & Institute, Beijing, 100142, China
| | - Yisheng Pan
- Division of General Surgery, Peking University First Hospital, Peking University, No. 8 Xi Shiku Street, Beijing, 100034, China.
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