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Sun J, Gui Y, Zhou S, Zheng XL. Unlocking the secrets of aging: Epigenetic reader BRD4 as the target to combatting aging-related diseases. J Adv Res 2024; 63:207-218. [PMID: 37956861 PMCID: PMC11379999 DOI: 10.1016/j.jare.2023.11.006] [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: 09/23/2023] [Revised: 11/03/2023] [Accepted: 11/05/2023] [Indexed: 11/15/2023] Open
Abstract
BACKGROUND Aging, a complex and profound journey, leads us through a labyrinth of physiological and pathological transformations, rendering us increasingly susceptible to aging-related diseases. Emerging investigations have unveiled the function of bromodomain containing protein 4 (BRD4) in manipulating the aging process and driving the emergence and progression of aging-related diseases. AIM OF REVIEW This review aims to offer a comprehensive outline of BRD4's functions involved in the aging process, and potential mechanisms through which BRD4 governs the initiation and progression of various aging-related diseases. KEY SCIENTIFIC CONCEPTS OF REVIEW BRD4 has a fundamental role in regulating the cell cycle, apoptosis, cellular senescence, the senescence-associated secretory phenotype (SASP), senolysis, autophagy, and mitochondrial function, which are involved in the aging process. Several studies have indicated that BRD4 governs the initiation and progression of various aging-related diseases, including Alzheimer's disease, ischemic cerebrovascular diseases, hypertension, atherosclerosis, heart failure, aging-related pulmonary fibrosis, and intervertebral disc degeneration (IVDD). Thus, the evidence from this review supports that BRD4 could be a promising target for managing various aging-related diseases, while further investigation is warranted to gain a thorough understanding of BRD4's role in these diseases.
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Affiliation(s)
- Jiaxing Sun
- Departments of Biochemistry and Molecular Biology, Cumming School of Medicine, University of Calgary, AB, Canada; Department of Cardiology, the Second Xiangya Hospital of Central South University, Changsha, China
| | - Yu Gui
- Departments of Biochemistry and Molecular Biology, Cumming School of Medicine, University of Calgary, AB, Canada
| | - Shenghua Zhou
- Department of Cardiology, the Second Xiangya Hospital of Central South University, Changsha, China.
| | - Xi-Long Zheng
- Departments of Biochemistry and Molecular Biology, Cumming School of Medicine, University of Calgary, AB, Canada.
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Xie Y, Xiao D, Li D, Peng M, Peng W, Duan H, Yang X. Combined strategies with PARP inhibitors for the treatment of BRCA wide type cancer. Front Oncol 2024; 14:1441222. [PMID: 39156700 PMCID: PMC11327142 DOI: 10.3389/fonc.2024.1441222] [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: 05/30/2024] [Accepted: 07/19/2024] [Indexed: 08/20/2024] Open
Abstract
Genomic instability stands out as a pivotal hallmark of cancer, and PARP inhibitors (PARPi) emerging as a groundbreaking class of targeted therapy drugs meticulously crafted to inhibit the repair of DNA single-strand breaks(SSB) in tumor cells. Currently, PARPi have been approved for the treatment of ovarian cancer, pancreatic cancer, breast cancer, and prostate cancer characterized by homologous recombination(HR) repair deficiencies due to mutations in BRCA1/2 or other DNA repair associated genes and acquiring the designation of breakthrough therapy. Nonetheless, PARPi exhibit limited efficacy in the majority of HR-proficient BRCA1/2 wild-type cancers. At present, the synergistic approach of combining PARPi with agents that induce HR defects, or with chemotherapy and radiotherapy to induce substantial DNA damage, significantly enhances the efficacy of PARPi in BRCA wild-type or HR-proficient patients, supporting extension the use of PARPi in HR proficient patients. Therefore, we have summarized the effects and mechanisms of the combined use of drugs with PARPi, including the combination of PARPi with HR defect-inducing drugs such as ATRi, CHKi, HR indirectly inducing drugs like VEGFRi, CDKi, immune checkpoint inhibitors and drugs instigating DNA damage such as chemotherapy or radiotherapy. In addition, this review discusses several ongoing clinical trials aimed at analyzing the clinical application potential of these combined treatment strategies.
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Affiliation(s)
- Yijun Xie
- Department of Oncology, Hunan Provincial People’s Hospital, The First Affiliated Hospital of Hunan Normal University, Hunan Normal University, Changsha, Hunan, China
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, Hunan Normal University, Changsha, Hunan, China
- Engineering Research Center of Reproduction and Translational Medicine of Hunan Province, Hunan Normal University, Changsha, Hunan, China
- Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research of Ministry of Education, Hunan Normal University, Changsha, Hunan, China
- Key Laboratory of Protein Chemistry and Developmental Biology of Fish of Ministry of Education, Hunan Normal University, Changsha, Hunan, China
- Department of Pharmacy, Hunan Normal University, Changsha, Hunan, China
- School of Medicine, Hunan Normal University, Changsha, Hunan, China
| | - Di Xiao
- Department of Oncology, Hunan Provincial People’s Hospital, The First Affiliated Hospital of Hunan Normal University, Hunan Normal University, Changsha, Hunan, China
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, Hunan Normal University, Changsha, Hunan, China
- Engineering Research Center of Reproduction and Translational Medicine of Hunan Province, Hunan Normal University, Changsha, Hunan, China
- Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research of Ministry of Education, Hunan Normal University, Changsha, Hunan, China
- Key Laboratory of Protein Chemistry and Developmental Biology of Fish of Ministry of Education, Hunan Normal University, Changsha, Hunan, China
- Department of Pharmacy, Hunan Normal University, Changsha, Hunan, China
- School of Medicine, Hunan Normal University, Changsha, Hunan, China
| | - Duo Li
- Department of Oncology, Hunan Provincial People’s Hospital, The First Affiliated Hospital of Hunan Normal University, Hunan Normal University, Changsha, Hunan, China
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, Hunan Normal University, Changsha, Hunan, China
- Engineering Research Center of Reproduction and Translational Medicine of Hunan Province, Hunan Normal University, Changsha, Hunan, China
- Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research of Ministry of Education, Hunan Normal University, Changsha, Hunan, China
- Key Laboratory of Protein Chemistry and Developmental Biology of Fish of Ministry of Education, Hunan Normal University, Changsha, Hunan, China
- Department of Pharmacy, Hunan Normal University, Changsha, Hunan, China
- School of Medicine, Hunan Normal University, Changsha, Hunan, China
| | - Mei Peng
- Department of Oncology, Hunan Provincial People’s Hospital, The First Affiliated Hospital of Hunan Normal University, Hunan Normal University, Changsha, Hunan, China
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, Hunan Normal University, Changsha, Hunan, China
- Engineering Research Center of Reproduction and Translational Medicine of Hunan Province, Hunan Normal University, Changsha, Hunan, China
- Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research of Ministry of Education, Hunan Normal University, Changsha, Hunan, China
- Key Laboratory of Protein Chemistry and Developmental Biology of Fish of Ministry of Education, Hunan Normal University, Changsha, Hunan, China
- Department of Pharmacy, Hunan Normal University, Changsha, Hunan, China
- School of Medicine, Hunan Normal University, Changsha, Hunan, China
| | - Wei Peng
- Department of Oncology, Hunan Provincial People’s Hospital, The First Affiliated Hospital of Hunan Normal University, Hunan Normal University, Changsha, Hunan, China
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, Hunan Normal University, Changsha, Hunan, China
- Engineering Research Center of Reproduction and Translational Medicine of Hunan Province, Hunan Normal University, Changsha, Hunan, China
- Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research of Ministry of Education, Hunan Normal University, Changsha, Hunan, China
- Key Laboratory of Protein Chemistry and Developmental Biology of Fish of Ministry of Education, Hunan Normal University, Changsha, Hunan, China
- Department of Pharmacy, Hunan Normal University, Changsha, Hunan, China
- School of Medicine, Hunan Normal University, Changsha, Hunan, China
| | - Huaxin Duan
- Department of Oncology, Hunan Provincial People’s Hospital, The First Affiliated Hospital of Hunan Normal University, Hunan Normal University, Changsha, Hunan, China
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, Hunan Normal University, Changsha, Hunan, China
- Engineering Research Center of Reproduction and Translational Medicine of Hunan Province, Hunan Normal University, Changsha, Hunan, China
- Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research of Ministry of Education, Hunan Normal University, Changsha, Hunan, China
- Key Laboratory of Protein Chemistry and Developmental Biology of Fish of Ministry of Education, Hunan Normal University, Changsha, Hunan, China
- Department of Pharmacy, Hunan Normal University, Changsha, Hunan, China
- School of Medicine, Hunan Normal University, Changsha, Hunan, China
| | - Xiaoping Yang
- Department of Oncology, Hunan Provincial People’s Hospital, The First Affiliated Hospital of Hunan Normal University, Hunan Normal University, Changsha, Hunan, China
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, Hunan Normal University, Changsha, Hunan, China
- Engineering Research Center of Reproduction and Translational Medicine of Hunan Province, Hunan Normal University, Changsha, Hunan, China
- Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research of Ministry of Education, Hunan Normal University, Changsha, Hunan, China
- Key Laboratory of Protein Chemistry and Developmental Biology of Fish of Ministry of Education, Hunan Normal University, Changsha, Hunan, China
- Department of Pharmacy, Hunan Normal University, Changsha, Hunan, China
- School of Medicine, Hunan Normal University, Changsha, Hunan, China
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Duan B, Zhou X, Zhang X, Qiu F, Zhang S, Chen Y, Yang J, Wang J, Tan W. BRD4-binding enhancer promotes CRC progression by interacting with YY1 to activate the Wnt pathway through upregulation of TCF7L2. Biochem Pharmacol 2023; 218:115877. [PMID: 37879498 DOI: 10.1016/j.bcp.2023.115877] [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: 09/15/2023] [Revised: 10/15/2023] [Accepted: 10/20/2023] [Indexed: 10/27/2023]
Abstract
Colorectal carcinoma (CRC), one of the most life-threatening cancer types, is associated with aberrant expression of epigenetic modifiers and activation of the Wnt pathway. However, the role of epigenetic regulators in driving cancer cell proliferation and their potential as therapeutic targets affecting the Wnt pathway remain unclear. In this study, BRD4 was found to promote the progression of CRC both in vitro and in vivo. The expression of BRD4 correlated with shortened CRC patient survival. In addition, BRD4 function was strongly correlated with the Wnt pathway, but rather through regulation of TCF7L2 at transcriptional levels. BRD4 and H3K27ac have overlapping occupancies in the cis-regulatory elements of TCF7L2, suggesting enhancer-based epigenetic regulation. Numerous YY1 binding sites were found in the abovementioned region. YY1 recruited BRD4 to bind to cis-regulatory elements of TCF7L2, thereby regulating the expression of TCF7L2. Altogether, this study validates that BRD4 performs a canonical epigenetic regulatory function in CRC and can be used in the treatment of Wnt pathway-dependent CRC or other malignancies with clinically available bromodomain inhibitors.
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Affiliation(s)
- Biao Duan
- Department of Pharmacology, School of Pharmacy, Fudan University, Shanghai 201203, China.
| | - Xuwei Zhou
- Department of Pharmacology, School of Pharmacy, Fudan University, Shanghai 201203, China
| | - Xiaoyi Zhang
- Department of Pharmacology, School of Pharmacy, Fudan University, Shanghai 201203, China
| | - Fenglan Qiu
- Department of Pharmacology, School of Pharmacy, Fudan University, Shanghai 201203, China
| | - Shaoqing Zhang
- Department of Pharmacology, School of Pharmacy, Fudan University, Shanghai 201203, China
| | - Yue Chen
- Department of Pharmacology, School of Pharmacy, Fudan University, Shanghai 201203, China
| | - Jun Yang
- Department of Pharmacology, School of Pharmacy, Fudan University, Shanghai 201203, China
| | - Juan Wang
- Department of Pharmacology, School of Pharmacy, Fudan University, Shanghai 201203, China
| | - Wenfu Tan
- Department of Pharmacology, School of Pharmacy, Fudan University, Shanghai 201203, China.
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Marchant V, Trionfetti F, Tejedor-Santamaria L, Rayego-Mateos S, Rotili D, Bontempi G, Domenici A, Menè P, Mai A, Martín-Cleary C, Ortiz A, Ramos AM, Strippoli R, Ruiz-Ortega M. BET Protein Inhibitor JQ1 Ameliorates Experimental Peritoneal Damage by Inhibition of Inflammation and Oxidative Stress. Antioxidants (Basel) 2023; 12:2055. [PMID: 38136175 PMCID: PMC10740563 DOI: 10.3390/antiox12122055] [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: 10/21/2023] [Revised: 11/22/2023] [Accepted: 11/23/2023] [Indexed: 12/24/2023] Open
Abstract
Peritoneal dialysis (PD) is a current replacement therapy for end-stage kidney diseases (ESKDs). However, long-term exposure to PD fluids may lead to damage of the peritoneal membrane (PM) through mechanisms involving the activation of the inflammatory response and mesothelial-to-mesenchymal transition (MMT), leading to filtration failure. Peritoneal damage depends on a complex interaction among external stimuli, intrinsic properties of the PM, and subsequent activities of the local innate-adaptive immune system. Epigenetic drugs targeting bromodomain and extra-terminal domain (BET) proteins have shown beneficial effects on different experimental preclinical diseases, mainly by inhibiting proliferative and inflammatory responses. However the effect of BET inhibition on peritoneal damage has not been studied. To this aim, we have evaluated the effects of treatment with the BET inhibitor JQ1 in a mouse model of peritoneal damage induced by chlorhexidine gluconate (CHX). We found that JQ1 ameliorated the CHX-induced PM thickness and inflammatory cell infiltration. Moreover, JQ1 decreased gene overexpression of proinflammatory and profibrotic markers, together with an inhibition of the nuclear factor-κB (NF-κB) pathway. Additionally, JQ1 blocked the activation of nuclear factor erythroid 2-related factor 2 (NRF2) and restored changes in the mRNA expression levels of NADPH oxidases (NOX1 and NOX4) and NRF2/target antioxidant response genes. To corroborate the in vivo findings, we evaluated the effects of the BET inhibitor JQ1 on PD patients' effluent-derived primary mesothelial cells and on the MeT-5A cell line. JQ1 inhibited tumor necrosis factor-α (TNF-α)-induced proinflammatory gene upregulation and restored MMT phenotype changes, together with the downmodulation of oxidative stress. Taken together, these results suggest that BET inhibitors may be a potential therapeutic option to ameliorate peritoneal damage.
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Affiliation(s)
- Vanessa Marchant
- Cellular and Molecular Biology in Renal and Vascular Pathology Laboratory, IIS-Fundación Jiménez Díaz, School of Medicine, Universidad Autónoma de Madrid, 28040 Madrid, Spain; (V.M.); (L.T.-S.); (S.R.-M.)
- RICORS2040, 28029 Madrid, Spain; (A.O.); (A.M.R.)
| | - Flavia Trionfetti
- Gene Expression Laboratory, National Institute for Infectious Diseases, Lazzaro Spallanzani IRCCS, 00149 Rome, Italy; (F.T.); (G.B.); (R.S.)
- Department of Molecular Medicine, Sapienza University of Rome, 00161 Rome, Italy
| | - Lucia Tejedor-Santamaria
- Cellular and Molecular Biology in Renal and Vascular Pathology Laboratory, IIS-Fundación Jiménez Díaz, School of Medicine, Universidad Autónoma de Madrid, 28040 Madrid, Spain; (V.M.); (L.T.-S.); (S.R.-M.)
- RICORS2040, 28029 Madrid, Spain; (A.O.); (A.M.R.)
| | - Sandra Rayego-Mateos
- Cellular and Molecular Biology in Renal and Vascular Pathology Laboratory, IIS-Fundación Jiménez Díaz, School of Medicine, Universidad Autónoma de Madrid, 28040 Madrid, Spain; (V.M.); (L.T.-S.); (S.R.-M.)
- RICORS2040, 28029 Madrid, Spain; (A.O.); (A.M.R.)
| | - Dante Rotili
- Department of Drug Chemistry and Technologies, Sapienza University of Rome, 00185 Rome, Italy; (D.R.); (A.M.)
| | - Giulio Bontempi
- Gene Expression Laboratory, National Institute for Infectious Diseases, Lazzaro Spallanzani IRCCS, 00149 Rome, Italy; (F.T.); (G.B.); (R.S.)
- Department of Molecular Medicine, Sapienza University of Rome, 00161 Rome, Italy
| | - Alessandro Domenici
- Renal Unit, Department of Clinical and Molecular Medicine, Sant’Andrea University Hospital, Sapienza University of Rome, 00189 Rome, Italy; (A.D.); (P.M.)
| | - Paolo Menè
- Renal Unit, Department of Clinical and Molecular Medicine, Sant’Andrea University Hospital, Sapienza University of Rome, 00189 Rome, Italy; (A.D.); (P.M.)
| | - Antonello Mai
- Department of Drug Chemistry and Technologies, Sapienza University of Rome, 00185 Rome, Italy; (D.R.); (A.M.)
| | - Catalina Martín-Cleary
- Laboratory of Nephrology, IIS-Fundación Jiménez Díaz, School of Medicine, Universidad Autónoma de Madrid, 28040 Madrid, Spain;
| | - Alberto Ortiz
- RICORS2040, 28029 Madrid, Spain; (A.O.); (A.M.R.)
- Laboratory of Nephrology, IIS-Fundación Jiménez Díaz, School of Medicine, Universidad Autónoma de Madrid, 28040 Madrid, Spain;
| | - Adrian M. Ramos
- RICORS2040, 28029 Madrid, Spain; (A.O.); (A.M.R.)
- Laboratory of Nephrology, IIS-Fundación Jiménez Díaz, School of Medicine, Universidad Autónoma de Madrid, 28040 Madrid, Spain;
| | - Raffaele Strippoli
- Gene Expression Laboratory, National Institute for Infectious Diseases, Lazzaro Spallanzani IRCCS, 00149 Rome, Italy; (F.T.); (G.B.); (R.S.)
- Department of Molecular Medicine, Sapienza University of Rome, 00161 Rome, Italy
| | - Marta Ruiz-Ortega
- Cellular and Molecular Biology in Renal and Vascular Pathology Laboratory, IIS-Fundación Jiménez Díaz, School of Medicine, Universidad Autónoma de Madrid, 28040 Madrid, Spain; (V.M.); (L.T.-S.); (S.R.-M.)
- RICORS2040, 28029 Madrid, Spain; (A.O.); (A.M.R.)
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Talukdar PD, Chatterji U. Transcriptional co-activators: emerging roles in signaling pathways and potential therapeutic targets for diseases. Signal Transduct Target Ther 2023; 8:427. [PMID: 37953273 PMCID: PMC10641101 DOI: 10.1038/s41392-023-01651-w] [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: 04/18/2023] [Revised: 08/27/2023] [Accepted: 09/10/2023] [Indexed: 11/14/2023] Open
Abstract
Specific cell states in metazoans are established by the symphony of gene expression programs that necessitate intricate synergic interactions between transcription factors and the co-activators. Deregulation of these regulatory molecules is associated with cell state transitions, which in turn is accountable for diverse maladies, including developmental disorders, metabolic disorders, and most significantly, cancer. A decade back most transcription factors, the key enablers of disease development, were historically viewed as 'undruggable'; however, in the intervening years, a wealth of literature validated that they can be targeted indirectly through transcriptional co-activators, their confederates in various physiological and molecular processes. These co-activators, along with transcription factors, have the ability to initiate and modulate transcription of diverse genes necessary for normal physiological functions, whereby, deregulation of such interactions may foster tissue-specific disease phenotype. Hence, it is essential to analyze how these co-activators modulate specific multilateral processes in coordination with other factors. The proposed review attempts to elaborate an in-depth account of the transcription co-activators, their involvement in transcription regulation, and context-specific contributions to pathophysiological conditions. This review also addresses an issue that has not been dealt with in a comprehensive manner and hopes to direct attention towards future research that will encompass patient-friendly therapeutic strategies, where drugs targeting co-activators will have enhanced benefits and reduced side effects. Additional insights into currently available therapeutic interventions and the associated constraints will eventually reveal multitudes of advanced therapeutic targets aiming for disease amelioration and good patient prognosis.
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Affiliation(s)
- Priyanka Dey Talukdar
- Cancer Research Laboratory, Department of Zoology, University of Calcutta, 35 Ballygunge Circular Road, Kolkata, 700019, West Bengal, India
| | - Urmi Chatterji
- Cancer Research Laboratory, Department of Zoology, University of Calcutta, 35 Ballygunge Circular Road, Kolkata, 700019, West Bengal, India.
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Wahi A, Manchanda N, Jain P, Jadhav HR. Targeting the epigenetic reader "BET" as a therapeutic strategy for cancer. Bioorg Chem 2023; 140:106833. [PMID: 37683545 DOI: 10.1016/j.bioorg.2023.106833] [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: 07/04/2023] [Revised: 08/22/2023] [Accepted: 08/30/2023] [Indexed: 09/10/2023]
Abstract
Bromodomain and extraterminal (BET) proteins have the ability to bind to acetylated lysine residues present in both histones and non-histone proteins. This binding is facilitated by the presence of tandem bromodomains. The regulatory role of BET proteins extends to chromatin dynamics, cellular processes, and disease progression. The BET family comprises of BRD 2, 3, 4 and BRDT. The BET proteins are a class of epigenetic readers that regulate the transcriptional activity of a multitude of genes that are involved in the pathogenesis of cancer. Thus, targeting BET proteins has been identified as a potentially efficacious approach for the treatment of cancer. BET inhibitors (BETis) are known to interfere with the binding of BET proteins to acetylated lysine residues of chromatin, thereby leading to the suppression of transcription of several genes, including oncogenic transcription factors. Here in this review, we focus on role of Bromodomain and extra C-terminal (BET) proteins in cancer progression. Furthermore, numerous small-molecule inhibitors with pan-BET activity have been documented, with certain compounds currently undergoing clinical assessment. However, it is apparent that the clinical effectiveness of the present BET inhibitors is restricted, prompting the exploration of novel technologies to enhance their clinical outcomes and mitigate undesired adverse effects. Thus, strategies like development of selective BET-BD1, & BD2 inhibitors, dual and acting BET are also presented in this review and attempts to cover the chemistry needed for proper establishment of designed molecules into BRD have been made. Moreover, the review attempts to summarize the details of research till date and proposes a space for future development of BET inhibitor with diminished side effects. It can be concluded that discovery of isoform selective BET inhibitors can be a way forward in order to develop BET inhibitors with negligible side effects.
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Affiliation(s)
- Abhishek Wahi
- Department of Pharmaceutical Chemistry, School of Pharmaceutical Sciences, Delhi Pharmaceutical Sciences and Research University, Govt. of NCT of Delhi, Delhi, New Delhi 110017, India
| | - Namish Manchanda
- Department of Pharmaceutical Chemistry, School of Pharmaceutical Sciences, Delhi Pharmaceutical Sciences and Research University, Govt. of NCT of Delhi, Delhi, New Delhi 110017, India
| | - Priti Jain
- Department of Pharmaceutical Chemistry, School of Pharmaceutical Sciences, Delhi Pharmaceutical Sciences and Research University, Govt. of NCT of Delhi, Delhi, New Delhi 110017, India.
| | - Hemant R Jadhav
- Department of Pharmacy, Birla Institute of Technology and Science, Pilani-Pilani Campus, Vidya Vihar Pilani, Rajasthan 333031, India
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Guan X, Zhao B, Guan X, Dong J, Ying J. A benzochalcone derivative synchronously induces apoptosis and ferroptosis in pancreatic cancer cells. PeerJ 2023; 11:e16291. [PMID: 37927794 PMCID: PMC10625348 DOI: 10.7717/peerj.16291] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Accepted: 09/22/2023] [Indexed: 11/07/2023] Open
Abstract
Background Pancreatic cancer is a highly aggressive and lethal disease with limited treatment options. In this study, we investigated the potential therapeutic effects of compound KL-6 on pancreatic cancer cells. Methods The study involved assessing the inhibitory effects of KL-6 on cell proliferation, clonogenic potential, cell cycle progression, apoptosis, migration, and invasion. Additionally, we examined the action mechanism of KL-6 by RNA-seq and bioinformatic analysis and validated by qRT-PCR and western blot in pancreatic cancer cells. Results Our results demonstrated that KL-6 effectively inhibited the growth of pancreatic cancer cells in a dose-dependent manner. It induced G2/M phase cell cycle arrest and apoptosis, disrupting the cell cycle progression and promoting cell death. KL-6 also exhibited inhibitory effects on cell migration and invasion, suggesting its potential to suppress the metastatic properties of pancreatic cancer cells. Furthermore, KL-6 modulated the expression of genes involved in various cancer-related pathways including apoptosis and ferroptosis. Conclusion These findings collectively support the potential of KL-6 as a promising therapeutic option for pancreatic cancer treatment. Further research is needed to fully understand the underlying mechanisms and evaluate the clinical efficacy of KL-6 in pancreatic cancer patients.
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Affiliation(s)
- Xiaoqing Guan
- Zhejiang Cancer Hospital, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou, Zhejiang, China
- Key Laboratory of Prevention, Diagnosis and Therapy of Upper Gastrointestinal Cancer of Zhejiang Province, Hangzhou, Zhejiang, China
| | - Bing Zhao
- Zhejiang Cancer Hospital, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou, Zhejiang, China
| | - Xiaodan Guan
- Zhejiang Cancer Hospital, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou, Zhejiang, China
| | - Jinyun Dong
- Zhejiang Cancer Hospital, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou, Zhejiang, China
| | - Jieer Ying
- Zhejiang Cancer Hospital, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou, Zhejiang, China
- Key Laboratory of Prevention, Diagnosis and Therapy of Upper Gastrointestinal Cancer of Zhejiang Province, Hangzhou, Zhejiang, China
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8
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Hamilton EP, Wang JS, Oza AM, Patel MR, Ulahannan SV, Bauer T, Karlix JL, Zeron-Medina J, Fabbri G, Marco-Casanova P, Moorthy G, Hattersley MM, Littlewood GM, Mitchell P, Saeh J, Pouliot GP, Moore KN. First-in-human Study of AZD5153, A Small-molecule Inhibitor of Bromodomain Protein 4, in Patients with Relapsed/Refractory Malignant Solid Tumors and Lymphoma. Mol Cancer Ther 2023; 22:1154-1165. [PMID: 37486983 PMCID: PMC10544002 DOI: 10.1158/1535-7163.mct-23-0065] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 04/12/2023] [Accepted: 07/18/2023] [Indexed: 07/26/2023]
Abstract
AZD5153, a reversible, bivalent inhibitor of the bromodomain and extraterminal family protein BRD4, has preclinical activity in multiple tumors. This first-in-human, phase I study investigated AZD5153 alone or with olaparib in patients with relapsed/refractory solid tumors or lymphoma. Adults with relapsed tumors intolerant of, or refractory to, prior therapies received escalating doses of oral AZD5153 once daily or twice daily continuously (21-day cycles), or AZD5153 once daily/twice daily continuously or intermittently plus olaparib 300 mg twice daily, until disease progression or unacceptable toxicity. Between June 30, 2017 and April 19, 2021, 34 patients received monotherapy and 15 received combination therapy. Dose-limiting toxicities were thrombocytopenia/platelet count decreased (n = 4/n = 2) and diarrhea (n = 1). The recommended phase II doses (RP2D) were AZD5153 30 mg once daily or 15 mg twice daily (monotherapy) and 10 mg once daily (intermittent schedule) with olaparib. With AZD5153 monotherapy, common treatment-emergent adverse events (TEAE) included fatigue (38.2%), thrombocytopenia, and diarrhea (each 32.4%); common grade ≥ 3 TEAEs were thrombocytopenia (14.7%) and anemia (8.8%). With the combination, common TEAEs included nausea (66.7%) and fatigue (53.3%); the most common grade ≥ 3 TEAE was thrombocytopenia (26.7%). AZD5153 had dose-dependent pharmacokinetics, with minimal accumulation, and demonstrated dose-dependent modulation of peripheral biomarkers, including upregulation of HEXIM1. One patient with metastatic pancreatic cancer receiving combination treatment had a partial response lasting 4.2 months. These results show AZD5153 was tolerable as monotherapy and in combination at the RP2Ds; common toxicities were fatigue, hematologic AEs, and gastrointestinal AEs. Strong evidence of peripheral target engagement was observed.
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Affiliation(s)
- Erika P. Hamilton
- Sarah Cannon Research Institute/Tennessee Oncology, Nashville, Tennessee
| | - Judy S. Wang
- Florida Cancer Specialists/Sarah Cannon Research Institute, Sarasota, Florida
| | - Amit M. Oza
- Division of Medical Oncology and Hematology, Princess Margaret Cancer Centre/University Health Network/Sinai Health Systems, Toronto, Ontario, Canada
| | - Manish R. Patel
- Florida Cancer Specialists/Sarah Cannon Research Institute, Sarasota, Florida
| | - Susanna V. Ulahannan
- Sarah Cannon Research Institute/Tennessee Oncology, Nashville, Tennessee
- Stephenson Cancer Center, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma
| | - Todd Bauer
- Sarah Cannon Research Institute/Tennessee Oncology, Nashville, Tennessee
| | | | | | | | | | - Ganesh Moorthy
- Clinical Pharmacology and Quantitative Pharmacology, R&D, AstraZeneca, Boston, Massachusetts
| | | | | | | | - Jamal Saeh
- Oncology R&D, AstraZeneca, Waltham, Massachusetts
| | | | - Kathleen N. Moore
- Sarah Cannon Research Institute/Tennessee Oncology, Nashville, Tennessee
- Stephenson Cancer Center, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma
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9
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Deng W, Sun D, Cai B, Jin B. Yangjing capsule improves oligoasthenozoospermia by promoting nitric oxide production through PLCγ1/AKT/eNOS pathway. Front Pharmacol 2023; 14:1056091. [PMID: 37180698 PMCID: PMC10169610 DOI: 10.3389/fphar.2023.1056091] [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: 09/28/2022] [Accepted: 04/13/2023] [Indexed: 05/16/2023] Open
Abstract
Background: Oligoasthenozoospermia is an important factor leading to male infertility. Yangjing capsule (YC), a traditional Chinese preparation, displays beneficial effects on male infertility. However, whether YC could improve oligoasthenozoospermia remains unclear. Methods: In this study, we aimed to explore the effect of YC in the treatment of oligoasthenozoospermia. Male Sprague-Dawley (SD) rats were treated with 800 mg/kg ornidazole once daily for 30 days to induce in vivo oligoasthenozoospermia; primary Sertoli cells were treated with 400 μg/mL ornidazole for 24 h to induce in vitro oligoasthenozoospermia. Results: We found that YC improved the testicle and epididymis weight, sperm concentration, sperm progressive motility, serum testosterone, fertility rate and testis morphology in ornidazole-exposed rats and enhanced cell survival in ornidazole-stimulated primary Sertoli cells. YC also inhibited the ornidazole-caused decrease in nitric oxide (NO) generation and the phosphorylation of phospholipase C γ1 (PLCγ1), AKT, and eNOS in vivo and in vitro in oligoasthenozoospermia. Furthermore, the knockdown of PLCγ1 blunted the beneficial effects of YC in vitro. Conclusion: Collectively, our data suggested that YC protected against oligoasthenozoospermia by promoting NO levels through the PLCγ1/AKT/eNOS pathway.
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Affiliation(s)
| | | | | | - Baofang Jin
- Zhongda Hospital Southeast University, Nanjing, China
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10
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Saeed H, Leibowitz BJ, Zhang L, Yu J. Targeting Myc-driven stress addiction in colorectal cancer. Drug Resist Updat 2023; 69:100963. [PMID: 37119690 DOI: 10.1016/j.drup.2023.100963] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Revised: 04/06/2023] [Accepted: 04/17/2023] [Indexed: 05/01/2023]
Abstract
MYC is a proto-oncogene that encodes a powerful regulator of transcription and cellular programs essential for normal development, as well as the growth and survival of various types of cancer cells. MYC rearrangement and amplification is a common cause of hematologic malignancies. In epithelial cancers such as colorectal cancer, genetic alterations in MYC are rare. Activation of Wnt, ERK/MAPK, and PI3K/mTOR pathways dramatically increases Myc levels through enhanced transcription, translation, and protein stability. Elevated Myc promotes stress adaptation, metabolic reprogramming, and immune evasion to drive cancer development and therapeutic resistance through broad changes in transcriptional and translational landscapes. Despite intense interest and effort, Myc remains a difficult drug target. Deregulation of Myc and its targets has profound effects that vary depending on the type of cancer and the context. Here, we summarize recent advances in the mechanistic understanding of Myc-driven oncogenesis centered around mRNA translation and proteostress. Promising strategies and agents under development to target Myc are also discussed with a focus on colorectal cancer.
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Affiliation(s)
- Haris Saeed
- UPMC Hillman Cancer Center, University of Pittsburgh School of Medicine, 5117 Centre Ave., Pittsburgh, PA 15213, USA; Dept. of Pathology, University of Pittsburgh School of Medicine, 5117 Centre Ave., Pittsburgh, PA 15213, USA
| | - Brian J Leibowitz
- UPMC Hillman Cancer Center, University of Pittsburgh School of Medicine, 5117 Centre Ave., Pittsburgh, PA 15213, USA; Dept. of Pathology, University of Pittsburgh School of Medicine, 5117 Centre Ave., Pittsburgh, PA 15213, USA
| | - Lin Zhang
- UPMC Hillman Cancer Center, University of Pittsburgh School of Medicine, 5117 Centre Ave., Pittsburgh, PA 15213, USA; Dept. of Chemical Biology and Pharmacology, University of Pittsburgh School of Medicine, 5117 Centre Ave., Pittsburgh, PA 15213, USA
| | - Jian Yu
- UPMC Hillman Cancer Center, University of Pittsburgh School of Medicine, 5117 Centre Ave., Pittsburgh, PA 15213, USA; Dept. of Pathology, University of Pittsburgh School of Medicine, 5117 Centre Ave., Pittsburgh, PA 15213, USA; Dept. of Radiation Oncology, University of Pittsburgh School of Medicine, 5117 Centre Ave., Pittsburgh, PA 15213, USA.
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11
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To KKW, Xing E, Larue RC, Li PK. BET Bromodomain Inhibitors: Novel Design Strategies and Therapeutic Applications. Molecules 2023; 28:molecules28073043. [PMID: 37049806 PMCID: PMC10096006 DOI: 10.3390/molecules28073043] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2023] [Revised: 03/22/2023] [Accepted: 03/26/2023] [Indexed: 04/03/2023] Open
Abstract
The mammalian bromodomain and extra-terminal domain (BET) family of proteins consists of four conserved members (Brd2, Brd3, Brd4, and Brdt) that regulate numerous cancer-related and immunity-associated genes. They are epigenetic readers of histone acetylation with broad specificity. BET proteins are linked to cancer progression due to their interaction with numerous cellular proteins including chromatin-modifying factors, transcription factors, and histone modification enzymes. The spectacular growth in the clinical development of small-molecule BET inhibitors underscores the interest and importance of this protein family as an anticancer target. Current approaches targeting BET proteins for cancer therapy rely on acetylation mimics to block the bromodomains from binding chromatin. However, bromodomain-targeted agents are suffering from dose-limiting toxicities because of their effects on other bromodomain-containing proteins. In this review, we provided an updated summary about the evolution of small-molecule BET inhibitors. The design of bivalent BET inhibitors, kinase and BET dual inhibitors, BET protein proteolysis-targeting chimeras (PROTACs), and Brd4-selective inhibitors are discussed. The novel strategy of targeting the unique C-terminal extra-terminal (ET) domain of BET proteins and its therapeutic significance will also be highlighted. Apart from single agent treatment alone, BET inhibitors have also been combined with other chemotherapeutic modalities for cancer treatment demonstrating favorable clinical outcomes. The investigation of specific biomarkers for predicting the efficacy and resistance of BET inhibitors is needed to fully realize their therapeutic potential in the clinical setting.
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12
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Guo J, Zheng Q, Peng Y. BET proteins: Biological functions and therapeutic interventions. Pharmacol Ther 2023; 243:108354. [PMID: 36739915 DOI: 10.1016/j.pharmthera.2023.108354] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2023] [Revised: 01/29/2023] [Accepted: 01/31/2023] [Indexed: 02/05/2023]
Abstract
Bromodomain and extra-terminal (BET) family member proteins (BRD2, BRD3, BRD4 and BRDT) play a pivotal role in interpreting the epigenetic information of histone Kac modification, thus controlling gene expression, remodeling chromatin structures and avoid replicative stress-induced DNA damages. Abnormal activation of BET proteins is tightly correlated to various human diseases, including cancer. Therefore, BET bromodomain inhibitors (BBIs) were considered as promising therapeutics to treat BET-related diseases, raising >70 clinical trials in the past decades. Despite preliminary effects achieved, drug resistance and adverse events represent two major challenges for current BBIs development. In this review, we will introduce the biological functions of BET proteins in both physiological and pathological conditions; and summarize the progress in current BBI drug development. Moreover, we will also discuss the major challenges in the front of BET inhibitor development and provide rational strategies to overcome these obstacles.
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Affiliation(s)
- Jiawei Guo
- Laboratory of Molecular Oncology, Frontiers Science Center for Disease-related Molecular Network, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Qingquan Zheng
- Laboratory of Molecular Oncology, Frontiers Science Center for Disease-related Molecular Network, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Yong Peng
- Laboratory of Molecular Oncology, Frontiers Science Center for Disease-related Molecular Network, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China; Frontier Medical Center, Tianfu Jincheng Laboratory, Chengdu, 610212, China.
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13
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Huang Y, Liu C, You L, Li X, Chen G, Fan J. Synergistic effect of PARP inhibitor and BRD4 inhibitor in multiple models of ovarian cancer. J Cell Mol Med 2023; 27:634-649. [PMID: 36753396 PMCID: PMC9983312 DOI: 10.1111/jcmm.17683] [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: 05/28/2022] [Revised: 01/10/2023] [Accepted: 01/16/2023] [Indexed: 02/09/2023] Open
Abstract
Ovarian cancer has the highest facility rate among gynaecological tumours. Current therapies including PARP inhibitors have a defect that ovarian tumour is easy to recurrent and become resistant to therapy. To solve this problem, we found that BRD4 inhibitor AZD5153 and PARP inhibitor olaparib had a widespread synergistic effect in multiple models with different gene backgrounds. AZD5153 sensitizes cells to olaparib and reverses the acquired resistance by down-regulating PTEN expression levels to destabilize hereditary materials. In this study, we used the following multiple ovarian cancer models PDX, PDO and 3D/2D cell lines to elucidate the co-effect of AZD5153 and olaparib in vivo and in vitro. The similar results of these models further proved that the mechanism identified was consistent with the biological process occurring in ovarian cancer patients after drug treatment. This consistency between the results of different models suggests the possibility of translating these laboratory research findings into clinical studies towards developing treatments.
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Affiliation(s)
- Yuhan Huang
- Department of Obstetrics and GynecologyTongji Hospital, Tongji Medical College, Huazhong University of Science and TechnologyWuhanChina,National Clinical Research Center for Obstetrics and GynecologyCancer Biology Research Center (Key Laboratory of the Ministry of Education), Tongji Hospital, Tongji Medical College, Huazhong University of Science and TechnologyWuhanChina,Department of Obstetrics and GynecologyShanghai General Hospital, Shanghai Jiao Tong University School of MedicineShanghaiChina
| | - Chen Liu
- Department of Obstetrics and GynecologyTongji Hospital, Tongji Medical College, Huazhong University of Science and TechnologyWuhanChina,National Clinical Research Center for Obstetrics and GynecologyCancer Biology Research Center (Key Laboratory of the Ministry of Education), Tongji Hospital, Tongji Medical College, Huazhong University of Science and TechnologyWuhanChina,Department of Obstetrics and GynecologyShanghai General Hospital, Shanghai Jiao Tong University School of MedicineShanghaiChina
| | - Lixin You
- Department of Obstetrics and GynecologyTongji Hospital, Tongji Medical College, Huazhong University of Science and TechnologyWuhanChina,National Clinical Research Center for Obstetrics and GynecologyCancer Biology Research Center (Key Laboratory of the Ministry of Education), Tongji Hospital, Tongji Medical College, Huazhong University of Science and TechnologyWuhanChina
| | - Xi Li
- Department of Obstetrics and GynecologyShanghai General Hospital, Shanghai Jiao Tong University School of MedicineShanghaiChina
| | - Gang Chen
- Department of Obstetrics and GynecologyTongji Hospital, Tongji Medical College, Huazhong University of Science and TechnologyWuhanChina,National Clinical Research Center for Obstetrics and GynecologyCancer Biology Research Center (Key Laboratory of the Ministry of Education), Tongji Hospital, Tongji Medical College, Huazhong University of Science and TechnologyWuhanChina
| | - Junpeng Fan
- Department of Obstetrics and GynecologyTongji Hospital, Tongji Medical College, Huazhong University of Science and TechnologyWuhanChina,National Clinical Research Center for Obstetrics and GynecologyCancer Biology Research Center (Key Laboratory of the Ministry of Education), Tongji Hospital, Tongji Medical College, Huazhong University of Science and TechnologyWuhanChina
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14
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da Costa AABA, Chowdhury D, Shapiro GI, D'Andrea AD, Konstantinopoulos PA. Targeting replication stress in cancer therapy. Nat Rev Drug Discov 2023; 22:38-58. [PMID: 36202931 PMCID: PMC11132912 DOI: 10.1038/s41573-022-00558-5] [Citation(s) in RCA: 106] [Impact Index Per Article: 106.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/25/2022] [Indexed: 02/06/2023]
Abstract
Replication stress is a major cause of genomic instability and a crucial vulnerability of cancer cells. This vulnerability can be therapeutically targeted by inhibiting kinases that coordinate the DNA damage response with cell cycle control, including ATR, CHK1, WEE1 and MYT1 checkpoint kinases. In addition, inhibiting the DNA damage response releases DNA fragments into the cytoplasm, eliciting an innate immune response. Therefore, several ATR, CHK1, WEE1 and MYT1 inhibitors are undergoing clinical evaluation as monotherapies or in combination with chemotherapy, poly[ADP-ribose]polymerase (PARP) inhibitors, or immune checkpoint inhibitors to capitalize on high replication stress, overcome therapeutic resistance and promote effective antitumour immunity. Here, we review current and emerging approaches for targeting replication stress in cancer, from preclinical and biomarker development to clinical trial evaluation.
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Affiliation(s)
| | - Dipanjan Chowdhury
- Department of Radiation Oncology, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Geoffrey I Shapiro
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Alan D D'Andrea
- Department of Radiation Oncology, Dana-Farber Cancer Institute, Boston, MA, USA.
- Center for DNA Damage and Repair, Dana-Farber Cancer Institute, Boston, MA, USA.
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15
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Peng X, Pan W, Jiang F, Chen W, Qi Z, Peng W, Chen J. Selective PARP1 Inhibitors, PARP1-based Dual-Target Inhibitors, PROTAC PARP1 Degraders, and Prodrugs of PARP1 Inhibitors for Cancer Therapy. Pharmacol Res 2022; 186:106529. [DOI: 10.1016/j.phrs.2022.106529] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Revised: 10/27/2022] [Accepted: 10/28/2022] [Indexed: 11/07/2022]
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16
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Qian X, Jiang C, Zhu Z, Han G, Xu N, Ye J, Wang R. Long non-coding RNA LINC00511 facilitates colon cancer development through regulating microRNA-625-5p to target WEE1. Cell Death Dis 2022; 8:233. [PMID: 35477702 PMCID: PMC9046421 DOI: 10.1038/s41420-021-00790-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2021] [Revised: 09/23/2021] [Accepted: 10/08/2021] [Indexed: 11/23/2022]
Abstract
The altered part of long non-coding RNA LINC00511 (LINC00511) is extensively discussed in malignancies. Finitely, the mechanism of LINC00511 in colon cancer (CC) development lacks thorough explorations. Hence, this work is started from the LINC00511-mediated microRNA (miR)-625-5p/WEE1 axis in the CC process. LINC00511, miR-625-5p, and WEE1 levels were tested in CC tissues and cells. Subcellular localization of LINC00511 was clarified. CC cells were transfected with oligonucleotides that altered LINC00511, and miR-625-5p expression to define their performance in CC cell progression. The tumorigenic ability of cells was verified in xenografted tumors. CC tissues and cells highly expressed LINC00511 and WEE1 and lowly expressed miR-625-5p. LINC00511 was mainly localized in the cytoplasm. Deleted LINC00511 or restored miR-625-5p delayed cellular growth in CC. LINC00511 sponged miR-625-5p to target WEE1. Silenced miR-625-5p mitigated the role of depleted LINC00511, while inhibited WEE1 rescued the effect of silenced miR-625-5p on the biological functions of CC cells. It is summarized that down-regulated LINC00511 obstructs tumorigenesis of CC through restoring miR-625-5p and silencing WEE1, consolidating a basal reference for CC-oriented therapy.
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Affiliation(s)
- Xiaowu Qian
- Department of Geriatrics, Taizhou People's Hospital (Taizhou People's Hospital affiliated to Nanjing Medical University), 225300, Taizhou, Jiangsu, China.
| | - Chun Jiang
- Department of Cardiology, Taizhou People's Hospital (Taizhou People's Hospital affiliated to Nanjing Medical University), 225300, Taizhou, Jiangsu, China
| | - Zhengtai Zhu
- Department of Geriatrics, Taizhou People's Hospital (Taizhou People's Hospital affiliated to Nanjing Medical University), 225300, Taizhou, Jiangsu, China
| | - Gaohua Han
- Department of Oncology, Taizhou People's Hospital (Taizhou People's Hospital affiliated to Nanjing Medical University), 225300, Taizhou, Jiangsu, China
| | - Ning Xu
- Department of Gastrointestinal Surgery, Taizhou People's Hospital (Taizhou People's Hospital affiliated to Nanjing Medical University), 225300, Taizhou, Jiangsu, China
| | - Jun Ye
- Department of Central Laboratory, Taizhou People's Hospital (Taizhou People's Hospital affiliated to Nanjing Medical University), Taizhou, 225300, Jiangsu, China
| | - Ruixing Wang
- Department of Geriatrics, Taizhou People's Hospital (Taizhou People's Hospital affiliated to Nanjing Medical University), 225300, Taizhou, Jiangsu, China
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17
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Lin CH, Kuo JCT, Li D, Koenig AB, Pan A, Yan P, Bai XF, Lee RJ, Ghoshal K. AZD5153, a Bivalent BRD4 Inhibitor, Suppresses Hepatocarcinogenesis by Altering BRD4 Chromosomal Landscape and Modulating the Transcriptome of HCC Cells. Front Cell Dev Biol 2022; 10:853652. [PMID: 35399501 PMCID: PMC8987780 DOI: 10.3389/fcell.2022.853652] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Accepted: 03/09/2022] [Indexed: 12/13/2022] Open
Abstract
BRD4, a chromatin modifier frequently upregulated in a variety of neoplasms including hepatocellular cancer (HCC), promotes cancer cell growth by activating oncogenes through its interaction with acetylated histone tails of nucleosomes. Here, we determined the anti-HCC efficacy of AZD5153, a potent bivalent BRD4 inhibitor, and elucidated its underlying molecular mechanism of action. AZD5153 treatment inhibited HCC cell proliferation, clonogenic survival and induced apoptosis in HCC cells. In vivo, AZD5153-formulated lipid nanoemulsions inhibited both orthotopic and subcutaneous HCCLM3 xenograft growth in NSG mice. Mapping of BRD4- chromosomal targets by ChIP-seq analysis identified the occupancy of BRD4 with the promoters, gene bodies, and super-enhancers of both mRNA and noncoding RNA genes, which were disrupted upon AZD5153 treatment. RNA-seq analysis of polyadenylated RNAs showed several BRD4 target genes involved in DNA replication, cell proliferation, and anti-apoptosis were repressed in AZD5153-treated HCC cells. In addition to known tumor-promoting genes, e.g., c-MYC, YAP1, RAD51B, TRIB3, SLC17A9, JADE1, we found that NAPRT, encoding a key enzyme for NAD+ biosynthesis from nicotinic acid, was also suppressed in HCC cells by the BRD4 inhibitor. Interestingly, AZD5153 treatment upregulated NAMPT, whose product is the rate-limiting enzyme for NAD+ synthesis from nicotinamide. This may explain why AZD5153 acted in concert with FK866, a potent NAMPT inhibitor, in reducing HCC cell proliferation and clonogenic survival. In conclusion, our results identified novel targets of BRD4 in the HCCLM3 cell genome and demonstrated anti-HCC efficacy of AZD5153, which was potentiated in combination with an NAMPT inhibitor.
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Affiliation(s)
- Cho-Hao Lin
- Department of Pathology, College of Medicine, Columbus, OH, United States
- Comprehensive Cancer Center, The Ohio State University, Columbus, OH, United States
| | - Jimmy Chun-Tien Kuo
- Division of Pharmaceutics and Pharmacology, College of Pharmacy, Columbus, OH, United States
| | - Ding Li
- Division of Pharmaceutics and Pharmacology, College of Pharmacy, Columbus, OH, United States
| | - Aaron B. Koenig
- Comprehensive Cancer Center, The Ohio State University, Columbus, OH, United States
| | - Alexander Pan
- Comprehensive Cancer Center, The Ohio State University, Columbus, OH, United States
| | - Pearlly Yan
- Comprehensive Cancer Center, The Ohio State University, Columbus, OH, United States
| | - Xue-Feng Bai
- Department of Pathology, College of Medicine, Columbus, OH, United States
- Comprehensive Cancer Center, The Ohio State University, Columbus, OH, United States
| | - Robert J. Lee
- Comprehensive Cancer Center, The Ohio State University, Columbus, OH, United States
- Division of Pharmaceutics and Pharmacology, College of Pharmacy, Columbus, OH, United States
- *Correspondence: Robert J. Lee, ; Kalpana Ghoshal,
| | - Kalpana Ghoshal
- Department of Pathology, College of Medicine, Columbus, OH, United States
- Comprehensive Cancer Center, The Ohio State University, Columbus, OH, United States
- *Correspondence: Robert J. Lee, ; Kalpana Ghoshal,
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18
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Dual-target inhibitors based on PARP1: new trend in the development of anticancer research. Future Med Chem 2022; 14:511-525. [PMID: 35257598 DOI: 10.4155/fmc-2021-0292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
PARP1 is a hot target, and its inhibitors have been approved for cancer therapy. However, some undesirable properties restrict the application of PARP1 inhibitors, including drug resistance, side effects and low efficiency. For multifactorial diseases, dual-target drugs have exhibited excellent synergistic effects, such as reduced drug resistance, low side effects and high therapeutic efficacy, by simultaneously regulating the main pathogenic and compensatory signal pathways of diseases. In recent years, several dual-target inhibitors based on PARP1 have been reported and have demonstrated unique advantages. In this review we summarize the research progress in dual-target inhibitors based on PARP1 and discuss the related drug design strategies and structure-activity relationships. This work is expected to provide references for the development of PARP1 inhibitors.
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19
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Zhang Y, Li J, Feng D, Peng X, Wang B, Han T, Zhang Y. Systematic Analysis of Molecular Characterization and Clinical Relevance of Liquid–Liquid Phase Separation Regulators in Digestive System Neoplasms. Front Cell Dev Biol 2022; 9:820174. [PMID: 35252219 PMCID: PMC8891544 DOI: 10.3389/fcell.2021.820174] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Accepted: 12/21/2021] [Indexed: 01/02/2023] Open
Abstract
Background: The role of liquid–liquid phase separation (LLPS) in cancer has also attracted more and more attention, which is found to affect transcriptional regulation, maintaining genomic stability and signal transduction, and contribute to the occurrence and progression of tumors. However, the role of LLPS in digestive system tumors is still largely unknown. Results: Here, we characterized the expression profiles of LLPS regulators in 3 digestive tract tumor types such as COAD, STAD, and ESCA with The Cancer Genome Atlas (TCGA) data. Our results for the first time showed that LLPS regulatory factors, such as Brd4, FBN1, and TP53, were frequently mutated in all types of digestive system tumors. Variant allele frequency (VAF) and APOBEC analysis demonstrated that genetic alterations of LLPS regulators were related to the progression of digestive system neoplasms (DSNs), such as TP53, NPHS1, TNRC6B, ITSN1, TNPO1, PML, AR, BRD4, DLG4, and PTPN1. KM plotter analysis showed that the mutation status of LLPS regulators was significantly related to the overall survival (OS) time of DSNs, indicating that they may contribute to the progression of DSN. The expression analysis of LLPS regulatory factors showed that a variety of LLPS regulatory factors were significantly dysregulated in digestive system tumors, such as SYN2 and MAPT. It is worth noting that we first found that LLPS regulatory factors were significantly correlated with tumor immune infiltration of B cells, CD4+ T cells, and CD8+ T cells in digestive system tumors. Bioinformatics analysis showed that the LLPS regulators’ expression was closely related to multiple signaling, including the ErbB signaling pathway and T-cell receptor signaling pathway. Finally, several LLPS signatures were constructed and had a strong prognostic stratification ability in different digestive gland tumors. Finally, the results demonstrated the LLPS regulators’ signature score was significantly positively related to the infiltration levels of CD4+ T cells, neutrophil cells, macrophage cells, and CD8+ T cells. Conclusion: Our study for the first time showed the potential roles of LLPS regulators in carcinogenesis and provide novel insights to identify novel biomarkers for the prediction of immune therapy and prognosis of DSNs.
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Affiliation(s)
- Yaxin Zhang
- Department of Oncology, Changhai Hospital, Naval Medical University, Shanghai, China
| | - Jie Li
- Department of Oncology, Changhai Hospital, Naval Medical University, Shanghai, China
| | - Dan Feng
- Department of Oncology, Changhai Hospital, Naval Medical University, Shanghai, China
| | - Xiaobo Peng
- Department of Oncology, Changhai Hospital, Naval Medical University, Shanghai, China
| | - Bin Wang
- Department of Oncology, Changhai Hospital, Naval Medical University, Shanghai, China
- *Correspondence: Bin Wang, ; Ting Han, ; Yingyi Zhang,
| | - Ting Han
- Departments of General Surgery, Changhai Hospital, Naval Medical University, Shanghai, China
- *Correspondence: Bin Wang, ; Ting Han, ; Yingyi Zhang,
| | - Yingyi Zhang
- Department of Oncology, Changhai Hospital, Naval Medical University, Shanghai, China
- *Correspondence: Bin Wang, ; Ting Han, ; Yingyi Zhang,
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20
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Hu X, Zhang J, Zhang Y, Jiao F, Wang J, Chen H, Ouyang L, Wang Y. Dual-target inhibitors of poly (ADP-ribose) polymerase-1 for cancer therapy: Advances, challenges, and opportunities. Eur J Med Chem 2022; 230:114094. [PMID: 34998039 DOI: 10.1016/j.ejmech.2021.114094] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Revised: 12/27/2021] [Accepted: 12/27/2021] [Indexed: 02/08/2023]
Abstract
PARP1 plays a crucial role in DNA damage repair, making it an essential target for cancer therapy. PARP1 inhibitors are widely used to treat BRCA-deficient malignancies, and six PARP inhibitors have been approved for clinical use. However, excluding the great clinical success of PARP inhibitors, the concomitant toxicity, drug resistance, and limited scope of application restrict their clinical efficacy. To find solutions to these problems, dual-target inhibitors have shown great potential. In recent years, several studies have linked PAPR1 to other primary cancer targets. Many dual-target inhibitors have been developed using structural fusion, linkage, or library construction methods, overcoming the defects of many single-target inhibitors of PARP1 and achieving great success in clinical cancer therapy. This review summarizes the advance of dual-target PARP1 inhibitors in recent years, focusing on their structural optimization process, structure-activity relationships (SARs), and in vitro or in vivo analysis results.
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Affiliation(s)
- Xinyue Hu
- Targeted Tracer Research and Development Laboratory, Institute of Respiratory Health, Frontiers Science Center for Disease-related Molecular Network, Joint Research Institution of Altitude Health, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China; State Key Laboratory of Biotherapy and Cancer Center, Department of Respiratory and Critical Care Medicine, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China; College of Life Sciences, Sichuan University, Chengdu, 610064, China
| | - Jifa Zhang
- Targeted Tracer Research and Development Laboratory, Institute of Respiratory Health, Frontiers Science Center for Disease-related Molecular Network, Joint Research Institution of Altitude Health, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China; State Key Laboratory of Biotherapy and Cancer Center, Department of Respiratory and Critical Care Medicine, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China; Precision Medicine Key Laboratory of Sichuan Province & Precision Medicine Research Center, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Ya Zhang
- Targeted Tracer Research and Development Laboratory, Institute of Respiratory Health, Frontiers Science Center for Disease-related Molecular Network, Joint Research Institution of Altitude Health, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China; College of Life Sciences, Sichuan University, Chengdu, 610064, China
| | - Fulun Jiao
- Targeted Tracer Research and Development Laboratory, Institute of Respiratory Health, Frontiers Science Center for Disease-related Molecular Network, Joint Research Institution of Altitude Health, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China; College of Life Sciences, Sichuan University, Chengdu, 610064, China
| | - Jiaxing Wang
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center, Memphis, 38163, Tennessee, United States
| | - Hao Chen
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center, Memphis, 38163, Tennessee, United States
| | - Liang Ouyang
- Targeted Tracer Research and Development Laboratory, Institute of Respiratory Health, Frontiers Science Center for Disease-related Molecular Network, Joint Research Institution of Altitude Health, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China; State Key Laboratory of Biotherapy and Cancer Center, Department of Respiratory and Critical Care Medicine, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China; Precision Medicine Key Laboratory of Sichuan Province & Precision Medicine Research Center, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Yuxi Wang
- Targeted Tracer Research and Development Laboratory, Institute of Respiratory Health, Frontiers Science Center for Disease-related Molecular Network, Joint Research Institution of Altitude Health, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China; State Key Laboratory of Biotherapy and Cancer Center, Department of Respiratory and Critical Care Medicine, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China; Precision Medicine Key Laboratory of Sichuan Province & Precision Medicine Research Center, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China.
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21
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Zheng R, Zhang K, Tan S, Gao F, Zhang Y, Xu W, Wang H, Gu D, Zhu L, Li S, Chu H, Zhang Z, Liu L, Du M, Wang M. Exosomal circLPAR1 functions in colorectal cancer diagnosis and tumorigenesis through suppressing BRD4 via METTL3–eIF3h interaction. Mol Cancer 2022; 21:49. [PMID: 35164758 PMCID: PMC8842935 DOI: 10.1186/s12943-021-01471-y] [Citation(s) in RCA: 100] [Impact Index Per Article: 50.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Accepted: 11/26/2021] [Indexed: 02/07/2023] Open
Abstract
Background Exosomes have emerged as vital biomarkers of multiple cancers and contain abundant circular RNAs (circRNAs). However, the potential for exosomal circRNAs to be used in diagnostics and their molecular mechanism of action in colorectal cancer (CRC) remain unclear. Methods CRC-specific exosomal circRNAs were identified by RNA sequencing, exoRBase database and a tissue microarray. The diagnostic performance of plasma exosomal circRNAs was evaluated among cancer-free controls, precancer individuals, CRC patients, and patients with other types of cancer. The corresponding biological functions were mainly assessed using circRNA pull-down, proteomic analysis, and RNA immunoprecipitation assay underlying cellular and mouse models. Results CircLPAR1 was encapsulated in exosomes with high stability and detectability, and its expression in plasma exosomes was remarkably decreased during CRC development but recovered after surgery. Exosomal circLPAR1 showed cancer specificity in CRC diagnosis and increased the diagnostic performance to an area under the receiver operating characteristic curve of 0.875, as determined by analysing its performance in combination with common clinical biomarkers CEA and CA19–9. Additionally, circLPAR1 was downregulated in CRC tissues and was associated with overall survival. Mechanistically, exosomal circLPAR1 was internalized by CRC cells, and it suppressed tumor growth, likely because exosomal circLPAR1 directly bound with eIF3h specifically suppressed the METTL3-eIF3h interaction, decreasing the translation of oncogene BRD4. Conclusions This comprehensive study highlights plasma exosomal circLPAR1 as a promising predictor in CRC diagnosis and describes its biological regulation of colorectal tumorigenesis. This study provides a new perspective on early diagnosis in the clinic and pathogenesis in disease development. Supplementary Information The online version contains supplementary material available at 10.1186/s12943-021-01471-y.
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22
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Xu J, Ling T, Dai S, Han S, Ding K. Constructing the ceRNA Regulatory Network and Combining Immune Cells to Evaluate Prognosis of Colon Cancer Patients. Front Cell Dev Biol 2021; 9:686844. [PMID: 34692670 PMCID: PMC8528953 DOI: 10.3389/fcell.2021.686844] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2021] [Accepted: 08/25/2021] [Indexed: 11/13/2022] Open
Abstract
Objective: This study was conducted in order to construct a competitive endogenous RNA (ceRNA) network to screen RNA that plays an important role in colon cancer and to construct a model to predict the prognosis of patients. Methods: The gene expression data of colon cancer were downloaded from the TCGA database. The difference was analyzed by the R software and the ceRNA network was constructed. The survival-related RNA was screened out by combining with clinical information, and the prognosis model was established by lasso regression. CIBERSORT was used to analyze the infiltration of immune cells in colon cancer, and the differential expression of immune cells related to survival was screened out by combining clinical information. The correlation between RNA and immune cells was analyzed by lasso regression. PCR was used to verify the expression of seven RNAs in colon cancer patients with different prognoses. Results: Two hundred and fifteen lncRNAs, 357 miRNAs, and 2,955 mRNAs were differentially expressed in colon cancer. The constructed ceRNA network contains 18 lncRNAs, 42 miRNAs, and 168 mRNAs, of which 18 RNAs are significantly related to survival. Through lasso analysis, we selected seven optimal RNA construction models. The AUC value of the model was greater than 0.7, and there was a significant difference in the survival rate between the high- and low-risk groups. Two kinds of immune cells related to the prognosis of patients were screened out. The results showed that the expression of seven RNA markers in colon cancer patients with different prognoses was basically consistent with the model analysis. Conclusion: We have established the regulatory network of ceRNA in colon cancer, screened out seven core RNAs and two kinds of immune cells, and constructed a comprehensive prognosis model of colon cancer patients.
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Affiliation(s)
- Jiasheng Xu
- Department of Colorectal Surgery and Oncology, Key Laboratory of Cancer Prevention and Intervention, Ministry of Education, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Cancer Center, Zhejiang University, Hangzhou, China
| | - Tianyi Ling
- Department of Colorectal Surgery and Oncology, Key Laboratory of Cancer Prevention and Intervention, Ministry of Education, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Cancer Center, Zhejiang University, Hangzhou, China
| | - Siqi Dai
- Department of Colorectal Surgery and Oncology, Key Laboratory of Cancer Prevention and Intervention, Ministry of Education, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Cancer Center, Zhejiang University, Hangzhou, China
| | - Shuwen Han
- Department of Colorectal Surgery and Oncology, Key Laboratory of Cancer Prevention and Intervention, Ministry of Education, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Cancer Center, Zhejiang University, Hangzhou, China
| | - Kefeng Ding
- Department of Colorectal Surgery and Oncology, Key Laboratory of Cancer Prevention and Intervention, Ministry of Education, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Cancer Center, Zhejiang University, Hangzhou, China
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23
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Kong L, Zhang Q, Mao J, Cheng L, Shi X, Yu L, Hu J, Yang M, Li L, Liu B, Qian X. A dual-targeted molecular therapy of PP242 and cetuximab plays an anti-tumor effect through EGFR downstream signaling pathways in colorectal cancer. J Gastrointest Oncol 2021; 12:1625-1642. [PMID: 34532116 DOI: 10.21037/jgo-21-467] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Accepted: 08/18/2021] [Indexed: 11/06/2022] Open
Abstract
Background Epidermal growth factor receptor (EGFR) and its downstream Ras-mitogen-activated protein kinase kinase (MAPKK, MEK)-extracellular regulated protein kinase (ERK) signaling pathway and phosphatidylinositol 3-kinase (PI3K)-protein kinase B (Akt)-mammalian target of rapamycin (mTOR) signaling pathway play important roles in the pathogenesis of colorectal cancer (CRC). The combination therapy of anti-EGFR and anti-mTOR needs to be explored. Methods Here we combined the anti-EGFR monoclonal antibody cetuximab (CTX) with the mTOR inhibitor PP242 in CRC cell lines and mouse xenograft models and discussed the changes of EGFR downstream signaling pathways of CRC cell lines. Results In HT-29 cells and Caco-2 cells, combined application of CTX and PP242 significantly inhibited the proliferation of CRC cells in vivo and in vitro. In BRAF wild-type Caco-2 cells, combined application of CTX and PP242 inhibited the activation of the EGFR and its downstream signaling pathways. Conclusions Our research further demonstrates the effectiveness of the combined application of CTX and PP242 in inhibiting CRC cell lines from the perspective of cell proliferation, cell cycle, apoptosis, and mouse xenografts. We revealed that the combined application of CTX and PP242 can inhibit tumor growth and proliferation by inhibiting the phosphorylation of key molecules in EGFR downstream MEK-ERK and MEK 4/7 (MKK)-c-Jun N-terminal kinase (JNK) signaling pathways in BRAF wild-type CRC cells. In addition, we found that in BRAF mutant CRC cells, the monotherapy of PP242 resulted in negative feedback increased EGFR phosphorylation rates, accompanied by significant up-regulation of downstream MEK and ERK phosphorylation.
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Affiliation(s)
- Linghui Kong
- The Comprehensive Cancer Centre of Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China
| | - Qun Zhang
- The Comprehensive Cancer Centre of Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China
| | - Jialei Mao
- The Comprehensive Cancer Centre of Nanjing Drum Tower Hospital, Clinical College of Nanjing University of Chinese Medicine, Nanjing, China
| | - Lei Cheng
- Department of Pulmonary Medicine, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Xiao Shi
- The Comprehensive Cancer Centre of Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China
| | - Lixia Yu
- The Comprehensive Cancer Centre of Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China
| | - Jing Hu
- The Comprehensive Cancer Centre of Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China
| | - Mi Yang
- The Comprehensive Cancer Centre of Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China
| | - Li Li
- The Comprehensive Cancer Centre of Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China
| | - Baorui Liu
- The Comprehensive Cancer Centre of Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China
| | - Xiaoping Qian
- The Comprehensive Cancer Centre of Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China
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24
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Liu Y, Liu N, Xu D, Wu B, Wu X, Sun X, Yang Y, Yan F. Hsa-miR-599 inhibits breast cancer progression via BRD4/Jagged1/Notch1 axis. J Cell Physiol 2021; 237:523-531. [PMID: 34415065 DOI: 10.1002/jcp.30548] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2020] [Revised: 03/10/2021] [Accepted: 03/12/2021] [Indexed: 12/17/2022]
Abstract
Hsa-miR-599 was identified as a tumor suppressor against cancer. This study aimed to explore possible mechanisms of antitumor effect of hsa-miR-599 against breast cancer. Tissue specimens were collected from 106 breast cancer cases, and breast cancer cell line MCF-7 was cultured for in vitro experiments. The expression pattern of hsa-miR-599 was measured via quantitative real-time polymerase chain reaction. Lipofectamine® 2000 reagent was used for cell transfection. Cell viability, motility and apoptosis were detected using MTT assay, transwell assay, and flow cytometer, respectively. Protein analysis was performed via western blot. Hsa-miR-599 expression was decreased in breast cancer tissues and cells. Moreover, its expression was negatively correlated with TNM stage (p = 0.004) and lymph node metastasis (p = 0.001). Enhanced hsa-miR-599 expression in breast cancer cells could induce the inhibition against cell proliferation, migration and invasion, and strengthen cell apoptosis. BRD4 might be a target of hsa-miR-599. Hsa-miR-599 combined with BRD4 inhibited breast cancer progression through targeting Jagged1/Notch1 pathway. Hsa-miR-599 expression is downregulated in breast cancer. Hsa-miR-599 may inactivate BRD4/Jagged1/Notch1 axis, thus suppressing malignant progression of breast cancer.
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Affiliation(s)
- Yang Liu
- Second Department of Ultrasonography, Hengshui People's Hospital of Hebei Province, Hengshui, China
| | - Ning Liu
- Second Department of Ultrasonography, Hengshui People's Hospital of Hebei Province, Hengshui, China
| | - Danfeng Xu
- Third Department of Ultrasonography, Hengshui People's Hospital of Hebei Province, Hengshui, China
| | - Baohui Wu
- Second Department of Ultrasonography, Hengshui People's Hospital of Hebei Province, Hengshui, China
| | - Xiaosheng Wu
- Department of Radiology, Hengshui Mental Hospital of Hebei Province, Hengshui, China
| | - Xia Sun
- Second Department of Ultrasonography, Hengshui People's Hospital of Hebei Province, Hengshui, China
| | - Yi Yang
- First Department of Ultrasonography, Hengshui People's Hospital of Hebei Province, Hengshui, China
| | - Fengqin Yan
- Third Department of Ultrasonography, Hengshui People's Hospital of Hebei Province, Hengshui, China
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25
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Wang K, Liu W, Xu Q, Gu C, Hu D. Tenacissoside G synergistically potentiates inhibitory effects of 5-fluorouracil to human colorectal cancer. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2021; 86:153553. [PMID: 33906076 DOI: 10.1016/j.phymed.2021.153553] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Revised: 03/15/2021] [Accepted: 03/18/2021] [Indexed: 06/12/2023]
Abstract
BACKGROUND Colorectal cancer (CRC) is one of the most malignant tumors worldwide with poor prognosis and low survival rate. Since the clinical efficacy of the commonly used 5-fluorouracil (5-FU) based chemotherapy in CRC patients is limited because of its intolerable adverse effects, there is an urgent need to explore agents that can enhance the anti-cancer activity of 5-FU, reduce adverse effects and prevent resistance. PURPOSE This study aims to investigate Tenacissoside G (TG)'s synergistic potentiation with 5-FU in inhibitory activity to colorectal cancer cells. METHODS The anti-proliferation effect of TG on 5 colorectal cancer cell lines was assessed by CCK-8 assay. The isobologram analysis and combination index methods were used to detect the synergistic effect of TG and 5-FU by the CompuSyn software using the T.C. Chou Method. The effects of TG/5-FU combination on cell cycle distribution and apoptosis induction were detected by flow cytometry. DNA damage degrees of cells treated with TG, 5-FU and their combination were evaluated by the alkaline comet assay. Protein expression regulated by the TG/5-FU combination was investigated by western blotting. Furthermore, a xenograft mouse model was established to investigate the synergistic anti-tumor effect in vivo. RESULTS In this work, we observed a dose-dependent growth inhibitory activity and cell cycle arrest induction of TG, a monomeric substance originated from Marsdenia tenacissima (Roxb.) Wight et Arn, in colorectal cancer cells. It was found that TG potentiated the anticancer effects of 5-FU with a synergism for the first time. And the co-treatment effects were also validated by in vivo experiments. The underlying mechanisms involved in the synergistic effects were probably included: (1) increased activation of caspase cascade; (2) enhancement of DNA damage degree and (3) induction of p53 phosphorylation at Serine 46. CONCLUSION TG potentiated 5-FU's inhibitory activity to human colorectal cancer through arresting cell cycle progression and inducing p53-mediated apoptosis, which may present a novel strategy in CRC therapies and contribute to the optimizing clinical application of 5-FU.
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Affiliation(s)
- Kaichun Wang
- Department of Clinical Pharmacology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200080, China
| | - Wei Liu
- Department of Clinical Pharmacology, Shanghai General Hospital of Nanjing Medical University, Shanghai 200080, China
| | - Qinfen Xu
- Department of Clinical Pharmacology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200080, China
| | - Chao Gu
- Department of Clinical Pharmacology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200080, China
| | - Daode Hu
- Department of Clinical Pharmacology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200080, China.
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26
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Yang Y, Fang L, Chen P, Zhang H, Zhou J. Identification of 3,5-Dimethylisoxazole Derivatives as BRD4 Inhibitors for the Treatment of Colorectal Cancer. ACS Med Chem Lett 2020; 11:2174-2181. [PMID: 33214826 DOI: 10.1021/acsmedchemlett.0c00294] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Accepted: 08/31/2020] [Indexed: 02/07/2023] Open
Abstract
Bromodomain-containing protein 4 (Brd4) plays a critical regulatory role in gene transcription that has been recently recognized as a promising strategy for cancer therapy. Based on the BRD4 protein containing two tandem bromodomain structures, BD1 and BD2, we designed and synthesized a series of 3,5-dimethylisoxazole derivative dimers targeting both bromodomains simultaneously to enhance protein binding potency. Among them, compound 22 significantly inhibited the proliferation of colorectal cancer cells HCT116 (IC50 = 162 nM), with a 20-fold increase in antiproliferative activity compared to inhibitor 14. The results of WesternBlot showed that compound 22 could down-regulate c-MYC protein levels and up-regulate HEXIM1 expression and modulate apoptosis through intrinsic pathways. In addition, compound 22 exhibited outstanding antitumor efficacy in the CT-26 tumor mouse model with a tumor suppression rate of 56.1%. Taken together, 3,5-dimethylisoxazole derivative dimer 22 has remarkable protein inhibitory effect and antitumor activity in vitro and in vivo. A protein binding model of compound 22 is being further analyzed, which will facilitate the development of bivalent BRD4 inhibitors and probe the biological function of BRD4.
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Affiliation(s)
- Yifei Yang
- Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing 210009, PR China
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Arkansas for Medical Sciences, Little Rock, Arkansas 72205, United States
| | - Lincheng Fang
- Center of Drug Discovery, Jiangsu Key Laboratory of Drug Discovery for Metabolic Disease, China Pharmaceutical University, Nanjing 210009, PR China
| | - Pan Chen
- Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing 210009, PR China
| | - Huibin Zhang
- Center of Drug Discovery, Jiangsu Key Laboratory of Drug Discovery for Metabolic Disease, China Pharmaceutical University, Nanjing 210009, PR China
| | - Jinpei Zhou
- Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing 210009, PR China
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27
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Hsu JY, Major JL, Riching AS, Sen R, Pires da Silva J, Bagchi RA. Beyond the genome: challenges and potential for epigenetics-driven therapeutic approaches in pulmonary arterial hypertension. Biochem Cell Biol 2020; 98:631-646. [PMID: 32706995 DOI: 10.1139/bcb-2020-0039] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Pulmonary arterial hypertension (PAH) is a devastating disease of the cardiopulmonary system caused by the narrowing of the pulmonary arteries, leading to increased vascular resistance and pressure. This leads to right ventricle remodeling, dysfunction, and eventually, death. While conventional therapies have largely focused on targeting vasodilation, other pathological features of PAH including aberrant inflammation, mitochondrial dynamics, cell proliferation, and migration have not been well explored. Thus, despite some recent improvements in PAH treatment, the life expectancy and quality of life for patients with PAH remains poor. Showing many similarities to cancers, PAH is characterized by increased pulmonary arterial smooth muscle cell proliferation, decreased apoptotic signaling pathways, and changes in metabolism. The recent successes of therapies targeting epigenetic modifiers for the treatment of cancer has prompted epigenetic research in PAH, revealing many new potential therapeutic targets. In this minireview we discuss the emergence of epigenetic dysregulation in PAH and highlight epigenetic-targeting compounds that may be effective for the treatment of PAH.
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Affiliation(s)
- Jessica Y Hsu
- Department of Pharmacology, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Jennifer L Major
- Department of Medicine, Division of Cardiology, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Andrew S Riching
- Department of Pharmacology, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA.,Department of Medicine, Division of Cardiology, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Rwik Sen
- Department of Craniofacial Biology, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Julie Pires da Silva
- Department of Medicine, Division of Cardiology, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Rushita A Bagchi
- Department of Medicine, Division of Cardiology, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
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28
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Quagliano A, Gopalakrishnapillai A, Barwe SP. Understanding the Mechanisms by Which Epigenetic Modifiers Avert Therapy Resistance in Cancer. Front Oncol 2020; 10:992. [PMID: 32670880 PMCID: PMC7326773 DOI: 10.3389/fonc.2020.00992] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2020] [Accepted: 05/19/2020] [Indexed: 12/19/2022] Open
Abstract
The development of resistance to anti-cancer therapeutics remains one of the core issues preventing the improvement of survival rates in cancer. Therapy resistance can arise in a multitude of ways, including the accumulation of epigenetic alterations in cancer cells. By remodeling DNA methylation patterns or modifying histone proteins during oncogenesis, cancer cells reorient their epigenomic landscapes in order to aggressively resist anti-cancer therapy. To combat these chemoresistant effects, epigenetic modifiers such as DNA hypomethylating agents, histone deacetylase inhibitors, histone demethylase inhibitors, along with others have been used. While these modifiers have achieved moderate success when used either alone or in combination with one another, the most positive outcomes were achieved when they were used in conjunction with conventional anti-cancer therapies. Epigenome modifying drugs have succeeded in sensitizing cancer cells to anti-cancer therapy via a variety of mechanisms: disrupting pro-survival/anti-apoptotic signaling, restoring cell cycle control and preventing DNA damage repair, suppressing immune system evasion, regulating altered metabolism, disengaging pro-survival microenvironmental interactions and increasing protein expression for targeted therapies. In this review, we explore different mechanisms by which epigenetic modifiers induce sensitivity to anti-cancer therapies and encourage the further identification of the specific genes involved with sensitization to facilitate development of clinical trials.
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Affiliation(s)
- Anthony Quagliano
- Nemours/Alfred I. duPont Hospital for Children, Wilmington, DE, United States
- Department of Biological Sciences, University of Delaware, Newark, DE, United States
| | - Anilkumar Gopalakrishnapillai
- Nemours/Alfred I. duPont Hospital for Children, Wilmington, DE, United States
- Department of Biological Sciences, University of Delaware, Newark, DE, United States
| | - Sonali P. Barwe
- Nemours/Alfred I. duPont Hospital for Children, Wilmington, DE, United States
- Department of Biological Sciences, University of Delaware, Newark, DE, United States
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29
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Lin S, Du L. The therapeutic potential of BRD4 in cardiovascular disease. Hypertens Res 2020; 43:1006-1014. [PMID: 32409773 DOI: 10.1038/s41440-020-0459-4] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Revised: 03/11/2020] [Accepted: 04/02/2020] [Indexed: 12/11/2022]
Abstract
Bromodomain-containing protein 4 (BRD4) is a member of the bromodomain and extra terminal (BET) protein family that has gained wide attention in the field of cancer due to its role in the formation of super enhancers (SEs) and the regulation of oncogene expression. However, there is increasing evidence that BRD4 also plays a pivotal role in a variety of cardiovascular diseases, suggesting that understanding the mechanisms of BRD4 in these diseases is important to advance studies and clinical treatment. In this article, we summarize the mechanisms of BRD4 in cardiovascular diseases, including pulmonary arterial hypertension, heart failure, atherosclerosis, and hypertension. In addition, we discuss small molecule inhibitors of BRD4 as novel therapeutic strategies for cardiovascular diseases.
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Affiliation(s)
- Shigang Lin
- Department of Neonatology, The Children's Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Lizhong Du
- Department of Neonatology, The Children's Hospital, Zhejiang University School of Medicine, Hangzhou, China.
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30
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Cheng M, Zhang ZW, Ji XH, Xu Y, Bian E, Zhao B. Super-enhancers: A new frontier for glioma treatment. Biochim Biophys Acta Rev Cancer 2020; 1873:188353. [PMID: 32112817 DOI: 10.1016/j.bbcan.2020.188353] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Revised: 02/21/2020] [Accepted: 02/21/2020] [Indexed: 01/17/2023]
Abstract
Glioma is the most common primary malignant tumor in the human brain. Although there are a variety of treatments, such as surgery, radiation and chemotherapy, glioma is still an incurable disease. Super-enhancers (SEs) are implicated in the control of tumor cell identity, and they promote oncogenic transcription, which supports tumor cells. Inhibition of the SE complex, which is required for the assembly and maintenance of SEs, may repress oncogenic transcription and impede tumor growth. In this review, we discuss the unique characteristics of SEs compared to typical enhancers, and we summarize the recent advances in the understanding of their properties and biological role in gene regulation. Additionally, we highlight that SE-driven lncRNAs, miRNAs and genes are involved in the malignant phenotype of glioma. Most importantly, the application of SE inhibitors in different cancer subtypes has introduced new directions in glioma treatment.
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Affiliation(s)
- Meng Cheng
- Department of Neurosurgery, The Second Affiliated Hospital of Anhui Medical University, Hefei 230601, China; Cerebral Vascular Disease Research Center, Anhui Medical University, Hefei 230601, China
| | - Zheng Wei Zhang
- Department of Neurosurgery, The Second Affiliated Hospital of Anhui Medical University, Hefei 230601, China; Cerebral Vascular Disease Research Center, Anhui Medical University, Hefei 230601, China
| | - Xing Hu Ji
- Department of Neurosurgery, The Second Affiliated Hospital of Anhui Medical University, Hefei 230601, China; Cerebral Vascular Disease Research Center, Anhui Medical University, Hefei 230601, China
| | - Yadi Xu
- Department of Neurosurgery, The Second Affiliated Hospital of Anhui Medical University, Hefei 230601, China; Cerebral Vascular Disease Research Center, Anhui Medical University, Hefei 230601, China
| | - Erbao Bian
- Department of Neurosurgery, The Second Affiliated Hospital of Anhui Medical University, Hefei 230601, China; Cerebral Vascular Disease Research Center, Anhui Medical University, Hefei 230601, China.
| | - Bing Zhao
- Department of Neurosurgery, The Second Affiliated Hospital of Anhui Medical University, Hefei 230601, China; Cerebral Vascular Disease Research Center, Anhui Medical University, Hefei 230601, China.
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31
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Liu M, Hu Y, Lu S, Lu M, Li J, Chang H, Jia H, Zhou M, Ren F, Zhong J. IC261, a specific inhibitor of CK1δ/ε, promotes aerobic glycolysis through p53-dependent mechanisms in colon cancer. Int J Biol Sci 2020; 16:882-892. [PMID: 32071557 PMCID: PMC7019134 DOI: 10.7150/ijbs.40960] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Accepted: 11/22/2019] [Indexed: 12/17/2022] Open
Abstract
Casein kinase 1δ (CK1δ) and casein kinase 1ε (CK1ε) have been proposed to be involved in DNA replication, differentiation and apoptosis, thus participating in the regulation of tumorigenesis. However, their functions in colon cancer and the underlying mechanism remain unclear. Here, we found that the expression of CK1ε and CK1δ increased significantly in cancer tissues and the upregulation of CK1ε and CK1δ were closely related to poor differentiation, advanced TNM stage and poor prognosis of colon cancer. CK1δ/ε inhibitor IC261 could induce a decrease in cell survival and proliferation, and an increase in apoptosis in colon cancer cells. Interestingly, IC261 increased the level of aerobic glycolysis in colon cancer cells. Meanwhile, IC261 caused the decrease of p53 protein level and the misregulation of glycolysis related genes (TIGAR, G6PD, GLUT1) which are closely related to the regulation of glycolysis by p53. Inhibiting p53 by siRNA or inhibitor could significantly attenuate the upregulation of aerobic glycolysis induced by IC261. Finally, inhibition of aerobic glycolysis can further increase the cytotoxicity induced by IC261. Collectively, our results revealed that IC261 could inhibit the growth of colon cancer cells and increase the level of aerobic glycolysis, which is regulated by p53-dependent manner. This result suggested that targeting CK1δ/ε and glycolysis might be a valuable strategy treatment and combination therapies for colon cancer.
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Affiliation(s)
- Min Liu
- Department of Pathology, Xinxiang Medical University, Henan, China
| | - Yuhan Hu
- Department of Pathology, Xinxiang Medical University, Henan, China
| | - Shuya Lu
- Department of Pathology, Xinxiang Medical University, Henan, China
| | - Manman Lu
- Department of Pathology, Xinxiang Medical University, Henan, China
| | - Jingsong Li
- Department of Pathology, The First Affiliated Hospital of Xinxiang Medical University, Henan, China
| | - Haimin Chang
- The Academic Affairs Office, Xinxiang Medical University, Henan, China
| | - Huijie Jia
- Department of Pathology, Xinxiang Medical University, Henan, China
| | - Min Zhou
- Department of Pathology, Xinxiang Medical University, Henan, China
| | - Feng Ren
- Department of Pathology, Xinxiang Medical University, Henan, China
| | - Jiateng Zhong
- Department of Pathology, Xinxiang Medical University, Henan, China.,Department of Pathology, The First Affiliated Hospital of Xinxiang Medical University, Henan, China
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