1
|
Gao D, Li C, Liu SY, Xu TT, Lin XT, Tan YP, Gao FM, Yi LT, Zhang JV, Ma JY, Meng TG, Yeung WSB, Liu K, Ou XH, Su RB, Sun QY. P300 regulates histone crotonylation and preimplantation embryo development. Nat Commun 2024; 15:6418. [PMID: 39080296 PMCID: PMC11289097 DOI: 10.1038/s41467-024-50731-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Accepted: 07/19/2024] [Indexed: 08/02/2024] Open
Abstract
Histone lysine crotonylation, an evolutionarily conserved modification differing from acetylation, exerts pivotal control over diverse biological processes. Among these are gene transcriptional regulation, spermatogenesis, and cell cycle processes. However, the dynamic changes and functions of histone crotonylation in preimplantation embryonic development in mammals remain unclear. Here, we show that the transcription coactivator P300 functions as a writer of histone crotonylation during embryonic development. Depletion of P300 results in significant developmental defects and dysregulation of the transcriptome of embryos. Importantly, we demonstrate that P300 catalyzes the crotonylation of histone, directly stimulating transcription and regulating gene expression, thereby ensuring successful progression of embryo development up to the blastocyst stage. Moreover, the modification of histone H3 lysine 18 crotonylation (H3K18cr) is primarily localized to active promoter regions. This modification serves as a distinctive epigenetic indicator of crucial transcriptional regulators, facilitating the activation of gene transcription. Together, our results propose a model wherein P300-mediated histone crotonylation plays a crucial role in regulating the fate of embryonic development.
Collapse
Affiliation(s)
- Di Gao
- Shenzhen Key Laboratory of Fertility Regulation, Center of Assisted Reproduction and Embryology, The University of Hong Kong Shenzhen Hospital, 518053, Shenzhen, China
- Center for Energy Metabolism and Reproduction, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, 518055, Shenzhen, China
- Guangzhou Key Laboratory of Metabolic Diseases and Reproductive Health, Guangdong-Hong Kong Metabolism & Reproduction Joint Laboratory, Reproductive Medicine Center, Guangdong Second Provincial General Hospital, 510317, Guangzhou, China
| | - Chao Li
- Guangzhou Key Laboratory of Metabolic Diseases and Reproductive Health, Guangdong-Hong Kong Metabolism & Reproduction Joint Laboratory, Reproductive Medicine Center, Guangdong Second Provincial General Hospital, 510317, Guangzhou, China
| | - Shao-Yuan Liu
- Guangzhou Key Laboratory of Metabolic Diseases and Reproductive Health, Guangdong-Hong Kong Metabolism & Reproduction Joint Laboratory, Reproductive Medicine Center, Guangdong Second Provincial General Hospital, 510317, Guangzhou, China
| | - Teng-Teng Xu
- MOE Key Laboratory of Gene Function and Regulation, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, 510275, Guangzhou, China
| | - Xiao-Ting Lin
- Guangzhou Key Laboratory of Metabolic Diseases and Reproductive Health, Guangdong-Hong Kong Metabolism & Reproduction Joint Laboratory, Reproductive Medicine Center, Guangdong Second Provincial General Hospital, 510317, Guangzhou, China
| | - Yong-Peng Tan
- Guangzhou Key Laboratory of Metabolic Diseases and Reproductive Health, Guangdong-Hong Kong Metabolism & Reproduction Joint Laboratory, Reproductive Medicine Center, Guangdong Second Provincial General Hospital, 510317, Guangzhou, China
| | - Fu-Min Gao
- Guangzhou Key Laboratory of Metabolic Diseases and Reproductive Health, Guangdong-Hong Kong Metabolism & Reproduction Joint Laboratory, Reproductive Medicine Center, Guangdong Second Provincial General Hospital, 510317, Guangzhou, China
| | - Li-Tao Yi
- Guangzhou Key Laboratory of Metabolic Diseases and Reproductive Health, Guangdong-Hong Kong Metabolism & Reproduction Joint Laboratory, Reproductive Medicine Center, Guangdong Second Provincial General Hospital, 510317, Guangzhou, China
| | - Jian V Zhang
- Center for Energy Metabolism and Reproduction, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, 518055, Shenzhen, China
| | - Jun-Yu Ma
- Guangzhou Key Laboratory of Metabolic Diseases and Reproductive Health, Guangdong-Hong Kong Metabolism & Reproduction Joint Laboratory, Reproductive Medicine Center, Guangdong Second Provincial General Hospital, 510317, Guangzhou, China
| | - Tie-Gang Meng
- Guangzhou Key Laboratory of Metabolic Diseases and Reproductive Health, Guangdong-Hong Kong Metabolism & Reproduction Joint Laboratory, Reproductive Medicine Center, Guangdong Second Provincial General Hospital, 510317, Guangzhou, China
| | - William S B Yeung
- Shenzhen Key Laboratory of Fertility Regulation, Center of Assisted Reproduction and Embryology, The University of Hong Kong Shenzhen Hospital, 518053, Shenzhen, China
| | - Kui Liu
- Shenzhen Key Laboratory of Fertility Regulation, Center of Assisted Reproduction and Embryology, The University of Hong Kong Shenzhen Hospital, 518053, Shenzhen, China
| | - Xiang-Hong Ou
- Guangzhou Key Laboratory of Metabolic Diseases and Reproductive Health, Guangdong-Hong Kong Metabolism & Reproduction Joint Laboratory, Reproductive Medicine Center, Guangdong Second Provincial General Hospital, 510317, Guangzhou, China.
| | - Rui-Bao Su
- Guangzhou Key Laboratory of Metabolic Diseases and Reproductive Health, Guangdong-Hong Kong Metabolism & Reproduction Joint Laboratory, Reproductive Medicine Center, Guangdong Second Provincial General Hospital, 510317, Guangzhou, China.
| | - Qing-Yuan Sun
- Guangzhou Key Laboratory of Metabolic Diseases and Reproductive Health, Guangdong-Hong Kong Metabolism & Reproduction Joint Laboratory, Reproductive Medicine Center, Guangdong Second Provincial General Hospital, 510317, Guangzhou, China.
| |
Collapse
|
2
|
Ni R, Fan L, Wang H, Zhang Q, Zhang L, Wang A, Liu B. Immune suppressive drugs negatively regulate the CD8 +T cells function by acetyltransferase p300 induced canonical and non-canonical autophagy. Heliyon 2024; 10:e33755. [PMID: 39071589 PMCID: PMC11283165 DOI: 10.1016/j.heliyon.2024.e33755] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2024] [Revised: 06/25/2024] [Accepted: 06/26/2024] [Indexed: 07/30/2024] Open
Abstract
Macroautophagy, the mainly regulated form of autophagy, maintains the cellular homeostasis and degrades the transported cargoes. It is initiated by the protein kinase complex regulating by two signals pathway Mammalian target of rapamycin complex 1 (mTORC1)-Adenosine 5' monophosphate activated protein kinase (AMPK)-Unc 51 like kinase 1(ULK1) and ULK1-PI3K- phosphatidylinositol 3-phosphate (PI3P). Currently, autolysosomes are accumulated during the aging process of CD8+T cells in vitro and may participate in inducing death sensitization of senescent cells. The main mechanism of aplastic anemia, a hyperimmune disease, is the T cells subsets imbalance such as CD8+T cells abnormal activation and hyperfunction. Therefore, the role of autophagy in the CD8+T cells and supposed whether some immunosuppress drugs induced the cells autophagic death to treat the hyperimmune diseases were focused. It was decided found that the acetyltransferase p300 obviously increased in the aplastic anemia patients and was related with the severity of disease. Previous studies have reported that canonical autophagy is regulated by the mTORC1-p300 axis. p300 is a critical bridge in the p300-VPS34 axis mediated non-canonical autophagy. There is the deficiency of autophagy and acetylation in the CD8+T cells. The expression of p300 also decreased notably after the immunosuppressive drugs therapy. Our findings provide a framework for understanding how immunosuppressive drugs effect on the AA autophagy deficiency mechanism and proved that immunosuppressive drugs negatively regulated the function of CD8+T cells by p300-mediated canonical autophagy pathway and non-canonical autophagy pathway.
Collapse
Affiliation(s)
- Runfeng Ni
- Department of Traditional Chinese Medicine, Tianjin Medical University General Hospital, Tianjin, 300052, China
- Department of Hematology, Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 200071, China
| | - Liwei Fan
- Department of Traditional Chinese Medicine, Tianjin Medical University General Hospital, Tianjin, 300052, China
- Xiasha Street Community Healthcare Center, Hangzhou, 310018, China
| | - Haijin Wang
- Department of Traditional Chinese Medicine, Tianjin Medical University General Hospital, Tianjin, 300052, China
| | - Quan Zhang
- Department of Traditional Chinese Medicine, Tianjin Medical University General Hospital, Tianjin, 300052, China
| | - Le Zhang
- Department of Traditional Chinese Medicine, Tianjin Medical University General Hospital, Tianjin, 300052, China
- Department of Dermatology, Air Force Medical Center, PLA, Beijing, 100142, China
| | - Aidi Wang
- Department of Traditional Chinese Medicine, Tianjin Medical University General Hospital, Tianjin, 300052, China
| | - Baoshan Liu
- Department of Traditional Chinese Medicine, Tianjin Medical University General Hospital, Tianjin, 300052, China
| |
Collapse
|
3
|
Rizo J, Encarnación-Guevara S. Bacterial protein acetylation: mechanisms, functions, and methods for study. Front Cell Infect Microbiol 2024; 14:1408947. [PMID: 39027134 PMCID: PMC11254643 DOI: 10.3389/fcimb.2024.1408947] [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: 03/29/2024] [Accepted: 06/03/2024] [Indexed: 07/20/2024] Open
Abstract
Lysine acetylation is an evolutionarily conserved protein modification that changes protein functions and plays an essential role in many cellular processes, such as central metabolism, transcriptional regulation, chemotaxis, and pathogen virulence. It can alter DNA binding, enzymatic activity, protein-protein interactions, protein stability, or protein localization. In prokaryotes, lysine acetylation occurs non-enzymatically and by the action of lysine acetyltransferases (KAT). In enzymatic acetylation, KAT transfers the acetyl group from acetyl-CoA (AcCoA) to the lysine side chain. In contrast, acetyl phosphate (AcP) is the acetyl donor of chemical acetylation. Regardless of the acetylation type, the removal of acetyl groups from acetyl lysines occurs only enzymatically by lysine deacetylases (KDAC). KATs are grouped into three main superfamilies based on their catalytic domain sequences and biochemical characteristics of catalysis. Specifically, members of the GNAT are found in eukaryotes and prokaryotes and have a core structural domain architecture. These enzymes can acetylate small molecules, metabolites, peptides, and proteins. This review presents current knowledge of acetylation mechanisms and functional implications in bacterial metabolism, pathogenicity, stress response, translation, and the emerging topic of protein acetylation in the gut microbiome. Additionally, the methods used to elucidate the biological significance of acetylation in bacteria, such as relative quantification and stoichiometry quantification, and the genetic code expansion tool (CGE), are reviewed.
Collapse
Affiliation(s)
| | - Sergio Encarnación-Guevara
- Laboratorio de Proteómica, Centro de Ciencias Genómicas, Universidad Nacional Autónoma de México, Cuernavaca, Mexico
| |
Collapse
|
4
|
Hu X, Huang X, Yang Y, Sun Y, Zhao Y, Zhang Z, Qiu D, Wu Y, Wu G, Lei L. Dux activates metabolism-lactylation-MET network during early iPSC reprogramming with Brg1 as the histone lactylation reader. Nucleic Acids Res 2024; 52:5529-5548. [PMID: 38512058 PMCID: PMC11162783 DOI: 10.1093/nar/gkae183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2023] [Revised: 02/24/2024] [Accepted: 03/15/2024] [Indexed: 03/22/2024] Open
Abstract
The process of induced pluripotent stem cells (iPSCs) reprogramming involves several crucial events, including the mesenchymal-epithelial transition (MET), activation of pluripotent genes, metabolic reprogramming, and epigenetic rewiring. Although these events intricately interact and influence each other, the specific element that regulates the reprogramming network remains unclear. Dux, a factor known to promote totipotency during the transition from embryonic stem cells (ESC) to 2C-like ESC (2CLC), has not been extensively studied in the context of iPSC reprogramming. In this study, we demonstrate that the modification of H3K18la induced by Dux overexpression controls the metabolism-H3K18la-MET network, enhancing the efficiency of iPSC reprogramming through a metabolic switch and the recruitment of p300 via its C-terminal domain. Furthermore, our proteomic analysis of H3K18la immunoprecipitation experiment uncovers the specific recruitment of Brg1 during reprogramming, with both H3K18la and Brg1 being enriched on the promoters of genes associated with pluripotency and epithelial junction. In summary, our study has demonstrated the significant role of Dux-induced H3K18la in the early reprogramming process, highlighting its function as a potent trigger. Additionally, our research has revealed, for the first time, the binding of Brg1 to H3K18la, indicating its role as a reader of histone lactylation.
Collapse
Affiliation(s)
- Xinglin Hu
- Department of Histology and Embryology, Basic Medical Science College, Harbin Medical University, 194 Xuefu Rd, Nangang District, Harbin, Heilongjiang Province 150081, China
| | - Xingwei Huang
- Department of Histology and Embryology, Basic Medical Science College, Harbin Medical University, 194 Xuefu Rd, Nangang District, Harbin, Heilongjiang Province 150081, China
- Guangzhou Laboratory, No. 9 XingDaoHuanBei Road, Guangzhou International Bio Island, Guangzhou 510005 Guangdong Province, China
- Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
- Bioland Laboratory (Guangzhou Regenerative Medicine and Health Guangdong Laboratory), Guangzhou 510320, China
| | - Yue Yang
- Department of Histology and Embryology, Basic Medical Science College, Harbin Medical University, 194 Xuefu Rd, Nangang District, Harbin, Heilongjiang Province 150081, China
| | - Yuchen Sun
- Department of Histology and Embryology, Basic Medical Science College, Harbin Medical University, 194 Xuefu Rd, Nangang District, Harbin, Heilongjiang Province 150081, China
| | - Yanhua Zhao
- Department of Histology and Embryology, Basic Medical Science College, Harbin Medical University, 194 Xuefu Rd, Nangang District, Harbin, Heilongjiang Province 150081, China
| | - Zhijing Zhang
- Department of Histology and Embryology, Basic Medical Science College, Harbin Medical University, 194 Xuefu Rd, Nangang District, Harbin, Heilongjiang Province 150081, China
| | - Dan Qiu
- Department of Histology and Embryology, Basic Medical Science College, Harbin Medical University, 194 Xuefu Rd, Nangang District, Harbin, Heilongjiang Province 150081, China
| | - Yanshuang Wu
- Department of Histology and Embryology, Basic Medical Science College, Harbin Medical University, 194 Xuefu Rd, Nangang District, Harbin, Heilongjiang Province 150081, China
| | - Guangming Wu
- Guangzhou Laboratory, No. 9 XingDaoHuanBei Road, Guangzhou International Bio Island, Guangzhou 510005 Guangdong Province, China
- Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
- Bioland Laboratory (Guangzhou Regenerative Medicine and Health Guangdong Laboratory), Guangzhou 510320, China
| | - Lei Lei
- Department of Histology and Embryology, Basic Medical Science College, Harbin Medical University, 194 Xuefu Rd, Nangang District, Harbin, Heilongjiang Province 150081, China
| |
Collapse
|
5
|
Policarpi C, Munafò M, Tsagkris S, Carlini V, Hackett JA. Systematic epigenome editing captures the context-dependent instructive function of chromatin modifications. Nat Genet 2024; 56:1168-1180. [PMID: 38724747 PMCID: PMC11176084 DOI: 10.1038/s41588-024-01706-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Accepted: 03/05/2024] [Indexed: 05/22/2024]
Abstract
Chromatin modifications are linked with regulating patterns of gene expression, but their causal role and context-dependent impact on transcription remains unresolved. Here we develop a modular epigenome editing platform that programs nine key chromatin modifications, or combinations thereof, to precise loci in living cells. We couple this with single-cell readouts to systematically quantitate the magnitude and heterogeneity of transcriptional responses elicited by each specific chromatin modification. Among these, we show that installing histone H3 lysine 4 trimethylation (H3K4me3) at promoters can causally instruct transcription by hierarchically remodeling the chromatin landscape. We further dissect how DNA sequence motifs influence the transcriptional impact of chromatin marks, identifying switch-like and attenuative effects within distinct cis contexts. Finally, we examine the interplay of combinatorial modifications, revealing that co-targeted H3K27 trimethylation (H3K27me3) and H2AK119 monoubiquitination (H2AK119ub) maximizes silencing penetrance across single cells. Our precision-perturbation strategy unveils the causal principles of how chromatin modification(s) influence transcription and dissects how quantitative responses are calibrated by contextual interactions.
Collapse
Affiliation(s)
- Cristina Policarpi
- Epigenetics and Neurobiology Unit, European Molecular Biology Laboratory (EMBL), Rome, Italy
| | - Marzia Munafò
- Epigenetics and Neurobiology Unit, European Molecular Biology Laboratory (EMBL), Rome, Italy
| | - Stylianos Tsagkris
- Epigenetics and Neurobiology Unit, European Molecular Biology Laboratory (EMBL), Rome, Italy
| | - Valentina Carlini
- Epigenetics and Neurobiology Unit, European Molecular Biology Laboratory (EMBL), Rome, Italy
- Faculty of Biosciences, EMBL and Heidelberg University, Heidelberg, Germany
| | - Jamie A Hackett
- Epigenetics and Neurobiology Unit, European Molecular Biology Laboratory (EMBL), Rome, Italy.
- Genome Biology Unit, EMBL, Heidelberg, Germany.
| |
Collapse
|
6
|
Sawazaki T, Sasaki D, Sohma Y. Catalysis driven by an amyloid-substrate complex. Proc Natl Acad Sci U S A 2024; 121:e2314704121. [PMID: 38691589 PMCID: PMC11087796 DOI: 10.1073/pnas.2314704121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Accepted: 03/29/2024] [Indexed: 05/03/2024] Open
Abstract
Amine modification through nucleophilic attack of the amine functionality is a very common chemical transformation. Under biorelevant conditions using acidic-to-neutral pH buffer, however, the nucleophilic reaction of alkyl amines (pKa ≈ 10) is not facile due to the generation of ammonium ions lacking nucleophilicity. Here, we disclose a unique molecular transformation system, catalysis driven by amyloid-substrate complex (CASL), that promotes amine modifications in acidic buffer. Ammonium ions attached to molecules with amyloid-binding capability were activated through deprotonation due to the close proximity to the amyloid catalyst formed by Ac-Asn-Phe-Gly-Ala-Ile-Leu-NH2 (NL6), derived from islet amyloid polypeptide (IAPP). Under the CASL conditions, alkyl amines underwent various modifications, i.e., acylation, arylation, cyclization, and alkylation, in acidic buffer. Crystallographic analysis and chemical modification studies of the amyloid catalysts suggested that the carbonyl oxygen of the Phe-Gly amide bond of NL6 plays a key role in activating the substrate amine by forming a hydrogen bond. Using CASL, selective conversion of substrates possessing equivalently reactive amine functionalities was achieved in catalytic reactions using amyloids. CASL provides a unique method for applying nucleophilic conversion reactions of amines in diverse fields of chemistry and biology.
Collapse
Affiliation(s)
- Taka Sawazaki
- Department of Medicinal Chemistry, School of Pharmaceutical Sciences, Wakayama Medical University, Wakayama640-8156, Japan
| | - Daisuke Sasaki
- Department of Medicinal Chemistry, School of Pharmaceutical Sciences, Wakayama Medical University, Wakayama640-8156, Japan
| | - Youhei Sohma
- Department of Medicinal Chemistry, School of Pharmaceutical Sciences, Wakayama Medical University, Wakayama640-8156, Japan
| |
Collapse
|
7
|
Russo M, Gualdrini F, Vallelonga V, Prosperini E, Noberini R, Pedretti S, Borriero C, Di Chiaro P, Polletti S, Imperato G, Marenda M, Ghirardi C, Bedin F, Cuomo A, Rodighiero S, Bonaldi T, Mitro N, Ghisletti S, Natoli G. Acetyl-CoA production by Mediator-bound 2-ketoacid dehydrogenases boosts de novo histone acetylation and is regulated by nitric oxide. Mol Cell 2024; 84:967-980.e10. [PMID: 38242130 PMCID: PMC7615796 DOI: 10.1016/j.molcel.2023.12.033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Revised: 12/08/2023] [Accepted: 12/21/2023] [Indexed: 01/21/2024]
Abstract
Histone-modifying enzymes depend on the availability of cofactors, with acetyl-coenzyme A (CoA) being required for histone acetyltransferase (HAT) activity. The discovery that mitochondrial acyl-CoA-producing enzymes translocate to the nucleus suggests that high concentrations of locally synthesized metabolites may impact acylation of histones and other nuclear substrates, thereby controlling gene expression. Here, we show that 2-ketoacid dehydrogenases are stably associated with the Mediator complex, thus providing a local supply of acetyl-CoA and increasing the generation of hyper-acetylated histone tails. Nitric oxide (NO), which is produced in large amounts in lipopolysaccharide-stimulated macrophages, inhibited the activity of Mediator-associated 2-ketoacid dehydrogenases. Elevation of NO levels and the disruption of Mediator complex integrity both affected de novo histone acetylation within a shared set of genomic regions. Our findings indicate that the local supply of acetyl-CoA generated by 2-ketoacid dehydrogenases bound to Mediator is required to maximize acetylation of histone tails at sites of elevated HAT activity.
Collapse
Affiliation(s)
- Marta Russo
- Department of Experimental Oncology, European Institute of Oncology (IEO) IRCCS, Milan 20139, Italy.
| | - Francesco Gualdrini
- Department of Experimental Oncology, European Institute of Oncology (IEO) IRCCS, Milan 20139, Italy.
| | - Veronica Vallelonga
- Department of Experimental Oncology, European Institute of Oncology (IEO) IRCCS, Milan 20139, Italy
| | - Elena Prosperini
- Department of Experimental Oncology, European Institute of Oncology (IEO) IRCCS, Milan 20139, Italy
| | - Roberta Noberini
- Department of Experimental Oncology, European Institute of Oncology (IEO) IRCCS, Milan 20139, Italy
| | - Silvia Pedretti
- DiSFeB, Dipartimento di Scienze Farmacologiche e Biomolecolari, Università degli Studi di Milano, Milano 20133, Italy
| | - Carolina Borriero
- Department of Experimental Oncology, European Institute of Oncology (IEO) IRCCS, Milan 20139, Italy
| | - Pierluigi Di Chiaro
- Department of Experimental Oncology, European Institute of Oncology (IEO) IRCCS, Milan 20139, Italy
| | - Sara Polletti
- Department of Experimental Oncology, European Institute of Oncology (IEO) IRCCS, Milan 20139, Italy
| | - Gabriele Imperato
- DiSFeB, Dipartimento di Scienze Farmacologiche e Biomolecolari, Università degli Studi di Milano, Milano 20133, Italy
| | - Mattia Marenda
- Department of Experimental Oncology, European Institute of Oncology (IEO) IRCCS, Milan 20139, Italy
| | - Chiara Ghirardi
- Department of Experimental Oncology, European Institute of Oncology (IEO) IRCCS, Milan 20139, Italy
| | - Fabio Bedin
- Department of Experimental Oncology, European Institute of Oncology (IEO) IRCCS, Milan 20139, Italy
| | - Alessandro Cuomo
- Department of Experimental Oncology, European Institute of Oncology (IEO) IRCCS, Milan 20139, Italy
| | - Simona Rodighiero
- Department of Experimental Oncology, European Institute of Oncology (IEO) IRCCS, Milan 20139, Italy
| | - Tiziana Bonaldi
- Department of Experimental Oncology, European Institute of Oncology (IEO) IRCCS, Milan 20139, Italy; Department of Hematology and Hematology-Oncology (DIPO), Università degli Studi di Milano, Milano 20122, Italy
| | - Nico Mitro
- Department of Experimental Oncology, European Institute of Oncology (IEO) IRCCS, Milan 20139, Italy; DiSFeB, Dipartimento di Scienze Farmacologiche e Biomolecolari, Università degli Studi di Milano, Milano 20133, Italy
| | - Serena Ghisletti
- Department of Experimental Oncology, European Institute of Oncology (IEO) IRCCS, Milan 20139, Italy.
| | - Gioacchino Natoli
- Department of Experimental Oncology, European Institute of Oncology (IEO) IRCCS, Milan 20139, Italy.
| |
Collapse
|
8
|
Lee YB, Rhee HW. Spray-type modifications: an emerging paradigm in post-translational modifications. Trends Biochem Sci 2024; 49:208-223. [PMID: 38443288 DOI: 10.1016/j.tibs.2024.01.008] [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: 10/01/2023] [Revised: 01/23/2024] [Accepted: 01/23/2024] [Indexed: 03/07/2024]
Abstract
A post-translational modification (PTM) occurs when a nucleophilic residue (e.g., lysine of a target protein) attacks electrophilic substrate molecules (e.g., acyl-AMP), involving writer enzymes or even occurring spontaneously. Traditionally, this phenomenon was thought to be sequence specific; however, recent research suggests that PTMs can also occur in a non-sequence-specific manner confined to a specific location in a cell. In this Opinion, we compile the accumulated evidence of spray-type PTMs and propose a mechanism for this phenomenon based on the exposure level of reactive electrophilic substrate molecules at the active site of the PTM writers. Overall, a spray-type PTM conceptual framework is useful for comprehending the promiscuous PTM writer events that cannot be adequately explained by the traditional concept of sequence-dependent PTM events.
Collapse
Affiliation(s)
- Yun-Bin Lee
- Department of Chemistry, Seoul National University, Seoul 08826, Korea
| | - Hyun-Woo Rhee
- Department of Chemistry, Seoul National University, Seoul 08826, Korea; School of Biological Sciences, Seoul National University, Seoul 08826, Korea.
| |
Collapse
|
9
|
Basu M, Bhatt R, Sharma A, Boopathi R, Das S, Kundu TK. The Largest Subunit of Human TFIIIC Complex, TFIIIC220, a Lysine Acetyltransferase Targets Histone H3K18. J Biochem 2024; 175:205-213. [PMID: 37963603 DOI: 10.1093/jb/mvad088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2023] [Revised: 10/23/2023] [Accepted: 10/21/2023] [Indexed: 11/16/2023] Open
Abstract
TFIIIC is a multi-subunit complex required for tRNA transcription by RNA polymerase III. Human TFIIIC holo-complex possesses lysine acetyltransferase activity that aids in relieving chromatin-mediated repression for RNA polymerase III-mediated transcription and chromatin assembly. Here we have characterized the acetyltransferase activity of the largest and DNA-binding subunit of TFIIIC complex, TFIIIC220. Purified recombinant human TFIIIC220 acetylated core histones H3, H4 and H2A in vitro. Moreover, we have identified the putative catalytic domain of TFIIIC220 that efficiently acetylates core histones in vitro. Mutating critical residues of the putative acetyl-CoA binding 'P loop' drastically reduced the catalytic activity of the acetyltransferase domain. Further analysis showed that the knockdown of TFIIIC220 in mammalian cell lines dramatically reduces global H3K18 acetylation level, which was rescued by overexpression of the putative acetyltransferase domain of human TFIIIC220. Our findings indicated a possibility of a crucial role for TFIIIC220 in maintaining acetylation homeostasis in the cell.
Collapse
Affiliation(s)
- Moumita Basu
- Transcription and Disease Laboratory, Molecular Biology and Genetics Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Bangalore- 560064, India
| | - Rohini Bhatt
- Transcription and Disease Laboratory, Molecular Biology and Genetics Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Bangalore- 560064, India
| | - Anjali Sharma
- Transcription and Disease Laboratory, Molecular Biology and Genetics Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Bangalore- 560064, India
| | - Ramachandran Boopathi
- Transcription and Disease Laboratory, Molecular Biology and Genetics Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Bangalore- 560064, India
| | - Sadhan Das
- Transcription and Disease Laboratory, Molecular Biology and Genetics Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Bangalore- 560064, India
| | - Tapas K Kundu
- Transcription and Disease Laboratory, Molecular Biology and Genetics Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Bangalore- 560064, India
| |
Collapse
|
10
|
Chang Q, Li J, Deng Y, Zhou R, Wang B, Wang Y, Zhang M, Huang X, Li Y. Discovery of Novel PROTAC Degraders of p300/CBP as Potential Therapeutics for Hepatocellular Carcinoma. J Med Chem 2024; 67:2466-2486. [PMID: 38316017 DOI: 10.1021/acs.jmedchem.3c01468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2024]
Abstract
Adenoviral E1A binding protein 300 kDa (p300) and its closely related paralog CREB binding protein (CBP) are promising therapeutic targets for human cancer. Here, we report the first discovery of novel potent small-molecule PROTAC degraders of p300/CBP against hepatocellular carcinoma (HCC), one of the most common solid tumors. Based upon the clinical p300/CBP bromodomain inhibitor CCS1477, a conformational restriction strategy was used to optimize the linker to generate a series of PROTACs, culminating in the identification of QC-182. This compound effectively induces p300/CBP degradation in the SK-HEP-1 HCC cells in a dose-, time-, and ubiquitin-proteasome system-dependent manner. QC-182 significantly downregulates p300/CBP-associated transcriptome in HCC cells, leading to more potent cell growth inhibition compared to the parental inhibitors and the reported degrader dCBP-1. Notably, QC-182 potently depletes p300/CBP proteins in mouse SK-HEP-1 xenograft tumor tissue. QC-182 is a promising lead compound toward the development of p300/CBP-targeted HCC therapy.
Collapse
Affiliation(s)
- Qi Chang
- Department of Medicinal Chemistry, School of Pharmacy, Fudan University, Shanghai 201203, China
| | - Jiayi Li
- Division of Anti-Tumor Pharmacology, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
- School of Pharmaceutical Science and Technology, Hangzhou Institute for Advanced Study, Chinese Academy of Sciences, Hangzhou 310024, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yue Deng
- Division of Anti-Tumor Pharmacology, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Ruilin Zhou
- School of Medicine & Holistic Integrative Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Bingwei Wang
- School of Medicine & Holistic Integrative Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Yujie Wang
- Department of Medicinal Chemistry, School of Pharmacy, Fudan University, Shanghai 201203, China
| | - Mingming Zhang
- Department of Medicinal Chemistry, School of Pharmacy, Fudan University, Shanghai 201203, China
| | - Xun Huang
- Division of Anti-Tumor Pharmacology, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
- School of Pharmaceutical Science and Technology, Hangzhou Institute for Advanced Study, Chinese Academy of Sciences, Hangzhou 310024, China
- Lin Gang Laboratory, Shanghai 200210, China
| | - Yingxia Li
- Department of Medicinal Chemistry, School of Pharmacy, Fudan University, Shanghai 201203, China
- Department of Infectious Diseases, Shanghai Key Laboratory of Infectious Diseases and Biosafety Emergency Response, National Medical Center for Infectious Diseases, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai 200040, China
| |
Collapse
|
11
|
Verma D, Kapoor S, Kumari S, Sharma D, Singh J, Benjamin M, Bakhshi S, Seth R, Nayak B, Sharma A, Pramanik R, Palanichamy JK, Sivasubbu S, Scaria V, Arora M, Kumar R, Chopra A. Decoding the genetic symphony: Profiling protein-coding and long noncoding RNA expression in T-acute lymphoblastic leukemia for clinical insights. PNAS NEXUS 2024; 3:pgae011. [PMID: 38328782 PMCID: PMC10847906 DOI: 10.1093/pnasnexus/pgae011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Accepted: 12/26/2023] [Indexed: 02/09/2024]
Abstract
T-acute lymphoblastic leukemia (T-ALL) is a heterogeneous malignancy characterized by the abnormal proliferation of immature T-cell precursors. Despite advances in immunophenotypic classification, understanding the molecular landscape and its impact on patient prognosis remains challenging. In this study, we conducted comprehensive RNA sequencing in a cohort of 35 patients with T-ALL to unravel the intricate transcriptomic profile. Subsequently, we validated the prognostic relevance of 23 targets, encompassing (i) protein-coding genes-BAALC, HHEX, MEF2C, FAT1, LYL1, LMO2, LYN, and TAL1; (ii) epigenetic modifiers-DOT1L, EP300, EML4, RAG1, EZH2, and KDM6A; and (iii) long noncoding RNAs (lncRNAs)-XIST, PCAT18, PCAT14, LINC00202, LINC00461, LINC00648, ST20, MEF2C-AS1, and MALAT1 in an independent cohort of 99 patients with T-ALL. Principal component analysis revealed distinct clusters aligning with immunophenotypic subtypes, providing insights into the molecular heterogeneity of T-ALL. The identified signature genes exhibited associations with clinicopathologic features. Survival analysis uncovered several independent predictors of patient outcomes. Higher expression of MEF2C, BAALC, HHEX, and LYL1 genes emerged as robust indicators of poor overall survival (OS), event-free survival (EFS), and relapse-free survival (RFS). Higher LMO2 expression was correlated with adverse EFS and RFS outcomes. Intriguingly, increased expression of lncRNA ST20 coupled with RAG1 demonstrated a favorable prognostic impact on OS, EFS, and RFS. Conclusively, several hitherto unreported associations of gene expression patterns with clinicopathologic features and prognosis were identified, which may help understand T-ALL's molecular pathogenesis and provide prognostic markers.
Collapse
Affiliation(s)
- Deepak Verma
- Laboratory Oncology, Dr BRAIRCH, All India Institute of Medical Sciences, New Delhi-110029, India
| | - Shruti Kapoor
- CSIR-Institute of Genomics and Integrative Biology, New Delhi-110025, India
| | - Sarita Kumari
- Laboratory Oncology, Dr BRAIRCH, All India Institute of Medical Sciences, New Delhi-110029, India
| | - Disha Sharma
- CSIR-Institute of Genomics and Integrative Biology, New Delhi-110025, India
| | - Jay Singh
- Laboratory Oncology, Dr BRAIRCH, All India Institute of Medical Sciences, New Delhi-110029, India
| | - Mercilena Benjamin
- Laboratory Oncology, Dr BRAIRCH, All India Institute of Medical Sciences, New Delhi-110029, India
| | - Sameer Bakhshi
- Department of Medical Oncology, Dr BRAIRCH, All India Institute of Medical Sciences, New Delhi-110029, India
| | - Rachna Seth
- Department of Pediatrics, All India Institute of Medical Sciences, New Delhi-110029, India
| | - Baibaswata Nayak
- Department of Gastroenterology, All India Institute of Medical Science, New Delhi-110029, India
| | - Atul Sharma
- Department of Medical Oncology, Dr BRAIRCH, All India Institute of Medical Sciences, New Delhi-110029, India
| | - Raja Pramanik
- Department of Medical Oncology, Dr BRAIRCH, All India Institute of Medical Sciences, New Delhi-110029, India
| | | | - Sridhar Sivasubbu
- CSIR-Institute of Genomics and Integrative Biology, New Delhi-110025, India
| | - Vinod Scaria
- CSIR-Institute of Genomics and Integrative Biology, New Delhi-110025, India
| | - Mohit Arora
- Department of Biochemistry, All India Institute of Medical Sciences, New Delhi-110029, India
| | - Rajive Kumar
- Laboratory Oncology, Dr BRAIRCH, All India Institute of Medical Sciences, New Delhi-110029, India
| | - Anita Chopra
- Laboratory Oncology, Dr BRAIRCH, All India Institute of Medical Sciences, New Delhi-110029, India
| |
Collapse
|
12
|
Ferrie JJ, Karr JP, Graham TGW, Dailey GM, Zhang G, Tjian R, Darzacq X. p300 is an obligate integrator of combinatorial transcription factor inputs. Mol Cell 2024; 84:234-243.e4. [PMID: 38159566 DOI: 10.1016/j.molcel.2023.12.004] [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: 05/16/2023] [Revised: 09/15/2023] [Accepted: 12/04/2023] [Indexed: 01/03/2024]
Abstract
Transcription coactivators are proteins or protein complexes that mediate transcription factor (TF) function. However, they lack DNA-binding capacity, prompting the question of how they engage target loci. Three non-exclusive hypotheses have been posited: coactivators are recruited by complexing with TFs, by binding histones through epigenetic reader domains, or by partitioning into condensates through their extensive intrinsically disordered regions. Using p300 as a prototypical coactivator, we systematically mutated its annotated domains and show by single-molecule tracking in live U2OS cells that coactivator-chromatin binding depends entirely on combinatorial binding of multiple TF-interaction domains. Furthermore, we demonstrate that acetyltransferase activity opposes p300-chromatin association and that the N-terminal TF-interaction domains regulate that activity. Single TF-interaction domains are insufficient for chromatin binding and regulation of catalytic activity, implying a principle that we speculate could broadly apply to eukaryotic gene regulation: a TF must act in coordination with other TFs to recruit coactivator activity.
Collapse
Affiliation(s)
- John J Ferrie
- Department of Molecular and Cell Biology, University of California, Berkeley, Berkeley, CA 94720, USA; Howard Hughes Medical Institute, University of California, Berkeley, Berkeley, CA 94720, USA
| | - Jonathan P Karr
- Department of Molecular and Cell Biology, University of California, Berkeley, Berkeley, CA 94720, USA
| | - Thomas G W Graham
- Department of Molecular and Cell Biology, University of California, Berkeley, Berkeley, CA 94720, USA; Howard Hughes Medical Institute, University of California, Berkeley, Berkeley, CA 94720, USA
| | - Gina M Dailey
- Department of Molecular and Cell Biology, University of California, Berkeley, Berkeley, CA 94720, USA
| | - Gloria Zhang
- Department of Molecular and Cell Biology, University of California, Berkeley, Berkeley, CA 94720, USA
| | - Robert Tjian
- Department of Molecular and Cell Biology, University of California, Berkeley, Berkeley, CA 94720, USA; Howard Hughes Medical Institute, University of California, Berkeley, Berkeley, CA 94720, USA.
| | - Xavier Darzacq
- Department of Molecular and Cell Biology, University of California, Berkeley, Berkeley, CA 94720, USA.
| |
Collapse
|
13
|
Chen G, Bao B, Cheng Y, Tian M, Song J, Zheng L, Tong Q. Acetyl-CoA metabolism as a therapeutic target for cancer. Biomed Pharmacother 2023; 168:115741. [PMID: 37864899 DOI: 10.1016/j.biopha.2023.115741] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Revised: 10/16/2023] [Accepted: 10/16/2023] [Indexed: 10/23/2023] Open
Abstract
Acetyl-coenzyme A (acetyl-CoA), an essential metabolite, not only takes part in numerous intracellular metabolic processes, powers the tricarboxylic acid cycle, serves as a key hub for the biosynthesis of fatty acids and isoprenoids, but also serves as a signaling substrate for acetylation reactions in post-translational modification of proteins, which is crucial for the epigenetic inheritance of cells. Acetyl-CoA links lipid metabolism with histone acetylation to create a more intricate regulatory system that affects the growth, aggressiveness, and drug resistance of malignancies such as glioblastoma, breast cancer, and hepatocellular carcinoma. These fascinating advances in the knowledge of acetyl-CoA metabolism during carcinogenesis and normal physiology have raised interest regarding its modulation in malignancies. In this review, we provide an overview of the regulation and cancer relevance of main metabolic pathways in which acetyl-CoA participates. We also summarize the role of acetyl-CoA in the metabolic reprogramming and stress regulation of cancer cells, as well as medical application of inhibitors targeting its dysregulation in therapeutic intervention of cancers.
Collapse
Affiliation(s)
- Guo Chen
- Department of Pediatric Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan 430022, Hubei Province, PR China
| | - Banghe Bao
- Department of Pathology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan 430022, Hubei Province, PR China
| | - Yang Cheng
- Department of Pediatric Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan 430022, Hubei Province, PR China
| | - Minxiu Tian
- Department of Pathology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan 430022, Hubei Province, PR China
| | - Jiyu Song
- Department of Pathology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan 430022, Hubei Province, PR China
| | - Liduan Zheng
- Department of Pathology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan 430022, Hubei Province, PR China.
| | - Qiangsong Tong
- Department of Pediatric Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan 430022, Hubei Province, PR China.
| |
Collapse
|
14
|
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.
Collapse
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.
| |
Collapse
|
15
|
Xu L, Xuan H, He W, Zhang L, Huang M, Li K, Wen H, Xu H, Shi X. TAZ2 truncation confers overactivation of p300 and cellular vulnerability to HDAC inhibition. Nat Commun 2023; 14:5362. [PMID: 37660055 PMCID: PMC10475075 DOI: 10.1038/s41467-023-41245-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Accepted: 08/28/2023] [Indexed: 09/04/2023] Open
Abstract
The histone acetyltransferase p300/CBP is composed of several conserved domains, among which, the TAZ2 domain is known as a protein-protein interaction domain that binds to E1A and various transcription factors. Here we show that TAZ2 has a HAT autoinhibitory function. Truncating p300/CBP at TAZ2 leads to hyperactive HAT and elevated histone H3K27 and H3K18 acetylation in cells. Mechanistically, TAZ2 cooperates with other HAT neighboring domains to maintain the HAT active site in a 'closed' state. Truncating TAZ2 or binding of transcription factors to TAZ2 induces a conformational change that 'opens' the active site for substrate acetylation. Importantly, genetic mutations that lead to p300/CBP TAZ2 truncations are found in human cancers, and cells with TAZ2 truncations are vulnerable to histone deacetylase inhibitors. Our study reveals a function of the TAZ2 domain in HAT autoinhibitory regulation and provides a potential therapeutic strategy for the treatment of cancers harboring p300/CBP TAZ2 truncations.
Collapse
Affiliation(s)
- Longxia Xu
- Department of Epigenetics, Van Andel Institute, Grand Rapids, MI, USA
| | - Hongwen Xuan
- Department of Epigenetics, Van Andel Institute, Grand Rapids, MI, USA
| | - Wei He
- Department of Epigenetics and Molecular Carcinogenesis, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Liang Zhang
- Department of Epigenetics and Molecular Carcinogenesis, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Mengying Huang
- Department of Epigenetics, Van Andel Institute, Grand Rapids, MI, USA
| | - Kuai Li
- Department of Epigenetics, Van Andel Institute, Grand Rapids, MI, USA
| | - Hong Wen
- Department of Epigenetics, Van Andel Institute, Grand Rapids, MI, USA
| | - Han Xu
- Department of Epigenetics and Molecular Carcinogenesis, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Xiaobing Shi
- Department of Epigenetics, Van Andel Institute, Grand Rapids, MI, USA.
| |
Collapse
|
16
|
Stampone E, Bencivenga D, Capellupo MC, Roberti D, Tartaglione I, Perrotta S, Della Ragione F, Borriello A. Genome editing and cancer therapy: handling the hypoxia-responsive pathway as a promising strategy. Cell Mol Life Sci 2023; 80:220. [PMID: 37477829 PMCID: PMC10361942 DOI: 10.1007/s00018-023-04852-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Revised: 06/14/2023] [Accepted: 06/29/2023] [Indexed: 07/22/2023]
Abstract
The precise characterization of oxygen-sensing pathways and the identification of pO2-regulated gene expression are both issues of critical importance. The O2-sensing system plays crucial roles in almost all the pivotal human processes, including the stem cell specification, the growth and development of tissues (such as embryogenesis), the modulation of intermediate metabolism (including the shift of the glucose metabolism from oxidative to anaerobic ATP production and vice versa), and the control of blood pressure. The solid cancer microenvironment is characterized by low oxygen levels and by the consequent activation of the hypoxia response that, in turn, allows a complex adaptive response characterized mainly by neoangiogenesis and metabolic reprogramming. Recently, incredible advances in molecular genetic methodologies allowed the genome editing with high efficiency and, above all, the precise identification of target cells/tissues. These new possibilities and the knowledge of the mechanisms of adaptation to hypoxia suggest the effective development of new therapeutic approaches based on the manipulation, targeting, and exploitation of the oxygen-sensor system molecular mechanisms.
Collapse
Affiliation(s)
- Emanuela Stampone
- Department of Precision Medicine, University of Campania "L. Vanvitelli", Via Luigi De Crecchio, 7, 80138, Naples, Italy
| | - Debora Bencivenga
- Department of Precision Medicine, University of Campania "L. Vanvitelli", Via Luigi De Crecchio, 7, 80138, Naples, Italy
| | - Maria Chiara Capellupo
- Department of Precision Medicine, University of Campania "L. Vanvitelli", Via Luigi De Crecchio, 7, 80138, Naples, Italy
| | - Domenico Roberti
- Department of the Woman, the Child and of the General and Specialty Surgery, University of Campania "L. Vanvitelli", Via Luigi De Crecchio, 2, 80138, Naples, Italy
| | - Immacolata Tartaglione
- Department of the Woman, the Child and of the General and Specialty Surgery, University of Campania "L. Vanvitelli", Via Luigi De Crecchio, 2, 80138, Naples, Italy
| | - Silverio Perrotta
- Department of the Woman, the Child and of the General and Specialty Surgery, University of Campania "L. Vanvitelli", Via Luigi De Crecchio, 2, 80138, Naples, Italy
| | - Fulvio Della Ragione
- Department of Precision Medicine, University of Campania "L. Vanvitelli", Via Luigi De Crecchio, 7, 80138, Naples, Italy.
| | - Adriana Borriello
- Department of Precision Medicine, University of Campania "L. Vanvitelli", Via Luigi De Crecchio, 7, 80138, Naples, Italy.
| |
Collapse
|
17
|
Filon M, Yang B, Purohit TA, Schehr J, Singh A, Bigarella M, Lewis P, Denu J, Lang J, Jarrard DF. Development of a multiplex assay to assess activated p300/CBP in circulating prostate tumor cells. Oncotarget 2023; 14:738-746. [PMID: 37477521 PMCID: PMC10360924 DOI: 10.18632/oncotarget.28477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Accepted: 07/06/2023] [Indexed: 07/22/2023] Open
Abstract
Reduced SIRT2 deacetylation and increased p300 acetylation activity leads to a concerted mechanism of hyperacetylation at specific histone lysine sites (H3K9, H3K14, and H3K18) in castration-resistant prostate cancer (CRPC). We examined whether circulating tumor cells (CTCs) identify patients with altered p300/CBP acetylation. CTCs were isolated from 13 advanced PC patients using Exclusion-based Sample Preparation (ESP) technology. Bound cells underwent immunofluorescent staining for histone modifying enzymes (HMEs) of interest and image capture with NIS-Elements software. Using the cBioPortal PCF/SU2C dataset, the response of CRPC to androgen receptor signaling inhibitors (ARSI) was analyzed in 50 subjects. Staining optimization and specificity revealed clear expression of acetyl-p300, acetyl-H3K18, and SIRT2 on CTCs (CK positive, CD45 negative cells). Exposure to A-485, a selective p300/CBP catalytic inhibitor, reduced p300 and H3K18 acetylation. In CRPC patients, a-p300 strongly correlated with its target acetylated H3k18 (Pearson's R = 0.61), and SIRT2 expression showed robust negative correlation with a-H3k18 (R = -0.60). A subgroup of CRPC patients (6/11; 55%) demonstrated consistent upregulation of acetylation based on these markers. To examine the clinical impact of upregulation of the CBP/p300 axis, CRPC patients with reduced deacetylase SIRT2 expression demonstrate shorter response times to ARSI therapy (5.9 vs. 12 mo; p = 0.03). A subset of CRPC patients demonstrate increased p300/CBP activity based on a novel CTC biomarker assay. With further development, this biomarker suite may be used to identify candidates for CBP/p300 acetylation inhibitors in clinical development.
Collapse
Affiliation(s)
- Mikolaj Filon
- Department of Urology, School of Medicine and Public Health, University of Wisconsin, Madison, WI 53705, USA
| | - Bing Yang
- Department of Urology, School of Medicine and Public Health, University of Wisconsin, Madison, WI 53705, USA
| | - Tanaya A. Purohit
- Department of Urology, School of Medicine and Public Health, University of Wisconsin, Madison, WI 53705, USA
| | - Jennifer Schehr
- Department of Hematology/Oncology, University of Wisconsin, Madison, WI 53705, USA
| | - Anupama Singh
- Department of Hematology/Oncology, University of Wisconsin, Madison, WI 53705, USA
| | - Marcelo Bigarella
- Department of Urology, School of Medicine and Public Health, University of Wisconsin, Madison, WI 53705, USA
| | - Peter Lewis
- Biomolecular Chemistry, University of Wisconsin, Madison, WI 53705, USA
| | - John Denu
- Biomolecular Chemistry, University of Wisconsin, Madison, WI 53705, USA
| | - Joshua Lang
- Department of Hematology/Oncology, University of Wisconsin, Madison, WI 53705, USA
- Carbone Comprehensive Cancer Center, University of Wisconsin, Madison, WI 53705, USA
| | - David F. Jarrard
- Department of Urology, School of Medicine and Public Health, University of Wisconsin, Madison, WI 53705, USA
- Carbone Comprehensive Cancer Center, University of Wisconsin, Madison, WI 53705, USA
| |
Collapse
|
18
|
Kikuchi M, Morita S, Wakamori M, Sato S, Uchikubo-Kamo T, Suzuki T, Dohmae N, Shirouzu M, Umehara T. Epigenetic mechanisms to propagate histone acetylation by p300/CBP. Nat Commun 2023; 14:4103. [PMID: 37460559 DOI: 10.1038/s41467-023-39735-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2022] [Accepted: 06/26/2023] [Indexed: 07/20/2023] Open
Abstract
Histone acetylation is important for the activation of gene transcription but little is known about its direct read/write mechanisms. Here, we report cryogenic electron microscopy structures in which a p300/CREB-binding protein (CBP) multidomain monomer recognizes histone H4 N-terminal tail (NT) acetylation (ac) in a nucleosome and acetylates non-H4 histone NTs within the same nucleosome. p300/CBP not only recognized H4NTac via the bromodomain pocket responsible for reading, but also interacted with the DNA minor grooves via the outside of that pocket. This directed the catalytic center of p300/CBP to one of the non-H4 histone NTs. The primary target that p300 writes by reading H4NTac was H2BNT, and H2BNTac promoted H2A-H2B dissociation from the nucleosome. We propose a model in which p300/CBP replicates histone N-terminal tail acetylation within the H3-H4 tetramer to inherit epigenetic storage, and transcribes it from the H3-H4 tetramer to the H2B-H2A dimers to activate context-dependent gene transcription through local nucleosome destabilization.
Collapse
Affiliation(s)
- Masaki Kikuchi
- Laboratory for Epigenetics Drug Discovery, RIKEN Center for Biosystems Dynamics Research, 1-7-22 Suehiro-cho, Tsurumi, Yokohama, 230-0045, Japan
| | - Satoshi Morita
- Laboratory for Epigenetics Drug Discovery, RIKEN Center for Biosystems Dynamics Research, 1-7-22 Suehiro-cho, Tsurumi, Yokohama, 230-0045, Japan
| | - Masatoshi Wakamori
- Laboratory for Epigenetics Drug Discovery, RIKEN Center for Biosystems Dynamics Research, 1-7-22 Suehiro-cho, Tsurumi, Yokohama, 230-0045, Japan
| | - Shin Sato
- Laboratory for Epigenetics Drug Discovery, RIKEN Center for Biosystems Dynamics Research, 1-7-22 Suehiro-cho, Tsurumi, Yokohama, 230-0045, Japan
| | - Tomomi Uchikubo-Kamo
- Laboratory for Protein Functional and Structural Biology, RIKEN Center for Biosystems Dynamics Research, 1-7-22 Suehiro-cho, Tsurumi, Yokohama, 230-0045, Japan
| | - Takehiro Suzuki
- Biomolecular Characterization Unit, Technology Platform Division, RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan
| | - Naoshi Dohmae
- Biomolecular Characterization Unit, Technology Platform Division, RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan
| | - Mikako Shirouzu
- Laboratory for Protein Functional and Structural Biology, RIKEN Center for Biosystems Dynamics Research, 1-7-22 Suehiro-cho, Tsurumi, Yokohama, 230-0045, Japan
| | - Takashi Umehara
- Laboratory for Epigenetics Drug Discovery, RIKEN Center for Biosystems Dynamics Research, 1-7-22 Suehiro-cho, Tsurumi, Yokohama, 230-0045, Japan.
| |
Collapse
|
19
|
Abstract
Proteolysis-targeting chimeras (PROTACs) are heterobifunctional small molecules that induce the ternary complex formation between a protein-of-interest (POI) and an E3 ligase, leading to targeted polyubiquitination and degradation of the POI. Particularly, PROTACs have the distinct advantage of targeting both canonical and noncanonical functions of epigenetic targets over traditional inhibitors, which typically target canonical functions only, resulting in greater therapeutic efficacy. In this review, we methodically analyze published PROTAC degraders of epigenetic writer, reader, and eraser proteins and their in vitro and in vivo effects. We highlight the mechanism of action of these degraders and their advantages in targeting both canonical and noncanonical functions of epigenetic targets in the context of cancer treatment. Furthermore, we present a future outlook for this exciting field. Overall, pharmacological degradation of epigenetic targets has emerged as an effective and attractive strategy to thwart cancer progression and growth.
Collapse
Affiliation(s)
- Md Kabir
- Mount Sinai Center for Therapeutics Discovery, Departments of Pharmacological Sciences, Oncological Sciences and Neuroscience, Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, New York 10029, USA.
| | - Xufen Yu
- Mount Sinai Center for Therapeutics Discovery, Departments of Pharmacological Sciences, Oncological Sciences and Neuroscience, Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, New York 10029, USA.
| | - H Ümit Kaniskan
- Mount Sinai Center for Therapeutics Discovery, Departments of Pharmacological Sciences, Oncological Sciences and Neuroscience, Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, New York 10029, USA.
| | - Jian Jin
- Mount Sinai Center for Therapeutics Discovery, Departments of Pharmacological Sciences, Oncological Sciences and Neuroscience, Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, New York 10029, USA.
| |
Collapse
|
20
|
Ferrie JJ, Karr JP, Graham TG, Dailey GM, Zhang G, Tjian R, Darzacq X. p300 Is an Obligate Integrator of Combinatorial Transcription Factor Inputs. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.05.18.541220. [PMID: 37292840 PMCID: PMC10245728 DOI: 10.1101/2023.05.18.541220] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Transcription coactivators are proteins or protein complexes that mediate transcription factor (TF) function. However, they lack DNA binding capacity, prompting the question of how they engage target loci. Three non-exclusive hypotheses have been posited: coactivators are recruited by complexing with TFs, by binding histones through epigenetic reader domains, or by partitioning into phase-separated compartments through their extensive intrinsically disordered regions (IDRs). Using p300 as a prototypical coactivator, we systematically mutated its annotated domains and show by single-molecule tracking in live cells that coactivator-chromatin binding depends entirely on combinatorial binding of multiple TF-interaction domains. Furthermore, we demonstrate that acetyltransferase activity negatively impacts p300-chromatin association and that the N-terminal TF-interaction domains regulate that activity. Single TF-interaction domains are insufficient for both chromatin binding and regulation of catalytic activity, implying a principle that could broadly inform eukaryotic gene regulation: a TF must act in coordination with other TFs to recruit coactivator activity.
Collapse
Affiliation(s)
- John J. Ferrie
- Department of Molecular and Cell Biology, University of California, Berkeley, CA, USA
- Howard Hughes Medical Institute, University of California, Berkeley, CA, USA
| | - Jonathan P. Karr
- Department of Molecular and Cell Biology, University of California, Berkeley, CA, USA
| | - Thomas G.W. Graham
- Department of Molecular and Cell Biology, University of California, Berkeley, CA, USA
- Howard Hughes Medical Institute, University of California, Berkeley, CA, USA
| | - Gina M. Dailey
- Department of Molecular and Cell Biology, University of California, Berkeley, CA, USA
| | - Gloria Zhang
- Department of Molecular and Cell Biology, University of California, Berkeley, CA, USA
| | - Robert Tjian
- Department of Molecular and Cell Biology, University of California, Berkeley, CA, USA
- Howard Hughes Medical Institute, University of California, Berkeley, CA, USA
| | - Xavier Darzacq
- Department of Molecular and Cell Biology, University of California, Berkeley, CA, USA
| |
Collapse
|
21
|
Ramakrishnan J, Magudeeswaran S, Suresh S, Poomani K. Investigation of intermolecular interactions and binding mechanism of PU139 and PU141 molecules with p300 HAT enzyme via molecular docking, molecular dynamics simulations and binding free energy analysis. J Biomol Struct Dyn 2023; 41:1351-1365. [PMID: 34974819 DOI: 10.1080/07391102.2021.2020164] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
The p300 histone acetyltransferase (HAT) enzyme acetylates the lysine residue of histone promotes the transcription reaction. The abnormal function of p300 HAT enzyme causes various diseases such as Cancer, Asthma, Alzheimer, Diabetics, and AIDS. In the recent years, several studies have been conducted to design potential drug to inhibit this enzyme. Recently, an in vitro study has been performed on the synthetic molecules PU139 and PU141 to inhibit the p300 HAT enzyme. The present study aims to understand the binding affinity, intermolecular interactions, conformational stability and binding energy of PU139 and PU141 molecules in the active site of p300 HAT enzyme from the in silico studies. The molecular docking and molecular dynamics (MD) simulations were carried out for both ligands with the p300 HAT enzyme. The molecular docking and MD simulations reveals that both molecules forms expected interactions with the catalytic site key residues of p300 enzyme. The MD simulation shows the maximum RMSD value for the PU141 is 2.3 Å, whereas for PU139 is 3.3 Å; these low RMSD values indicate that both molecules are highly stable in the active site of p300. The calculated binding free energy of PU141 (-20.62 kcal/mol) is higher than the molecule PU139 (-17.67 kcal/mol). Among the results, PU141 shows the high binding affinity with p300 while comparing with PU139. The results of this in-silico study coupled with the findings reported in the in vitro study confirm that PU141 may be suitable for clinical study.Communicated by Ramaswamy H. Sarma.
Collapse
Affiliation(s)
- Jaganathan Ramakrishnan
- Laboratory of Biocrystallography and Computational Molecular Biology, Department of Physics, Periyar University, Salem, India
| | - Sivanandam Magudeeswaran
- Laboratory of Biocrystallography and Computational Molecular Biology, Department of Physics, Periyar University, Salem, India
| | - Suganya Suresh
- Laboratory of Biocrystallography and Computational Molecular Biology, Department of Physics, Periyar University, Salem, India
| | - Kumaradhas Poomani
- Laboratory of Biocrystallography and Computational Molecular Biology, Department of Physics, Periyar University, Salem, India
| |
Collapse
|
22
|
Effects of the Acetyltransferase p300 on Tumour Regulation from the Novel Perspective of Posttranslational Protein Modification. Biomolecules 2023; 13:biom13030417. [PMID: 36979352 PMCID: PMC10046601 DOI: 10.3390/biom13030417] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Revised: 02/17/2023] [Accepted: 02/20/2023] [Indexed: 02/25/2023] Open
Abstract
p300 acts as a transcription coactivator and an acetyltransferase that plays an important role in tumourigenesis and progression. In previous studies, it has been confirmed that p300 is an important regulator in regulating the evolution of malignant tumours and it also has extensive functions. From the perspective of non-posttranslational modification, it has been proven that p300 can participate in regulating many pathophysiological processes, such as activating oncogene transcription, promoting tumour cell growth, inducing apoptosis, regulating immune function and affecting embryo development. In recent years, p300 has been found to act as an acetyltransferase that catalyses a variety of protein modification types, such as acetylation, propanylation, butyylation, 2-hydroxyisobutyration, and lactylation. Under the catalysis of this acetyltransferase, it plays its crucial tumourigenic driving role in many malignant tumours. Therefore, the function of p300 acetyltransferase has gradually become a research hotspot. From a posttranslational modification perspective, p300 is involved in the activation of multiple transcription factors and additional processes that promote malignant biological behaviours, such as tumour cell proliferation, migration, and invasion, as well as tumour cell apoptosis, drug resistance, and metabolism. Inhibitors of p300 have been developed and are expected to become novel anticancer drugs for several malignancies. We review the characteristics of the p300 protein and its functional role in tumour from the posttranslational modification perspective, as well as the current status of p300-related inhibitor research, with a view to gaining a comprehensive understanding of p300.
Collapse
|
23
|
Whedon SD, Cole PA. KATs off: Biomedical insights from lysine acetyltransferase inhibitors. Curr Opin Chem Biol 2023; 72:102255. [PMID: 36584580 PMCID: PMC9870960 DOI: 10.1016/j.cbpa.2022.102255] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Revised: 11/27/2022] [Accepted: 11/28/2022] [Indexed: 12/29/2022]
Abstract
Lysine acetyltransferase (KAT) enzymes including the p300, MYST, and GCN5 families play major roles in modulating the structure of chromatin and regulating transcription. Because of their dysregulation in various disease states including cancer, efforts to develop inhibitors of KATs have steadily gained momentum. Here we provide an overview of recent progress on the development of high quality chemical probes of the p300 and MYST family of KATs and how they are emerging as useful tools for basic and translational investigation.
Collapse
Affiliation(s)
- Samuel D Whedon
- Division of Genetics, Department of Medicine, Brigham and Women's Hospital, Boston, MA, 02115, USA; Department of Biological Chemistry and Molecular Pharmacology, Blavatnik Institute, Harvard Medical School, Boston, MA, 02115, USA
| | - Philip A Cole
- Division of Genetics, Department of Medicine, Brigham and Women's Hospital, Boston, MA, 02115, USA; Department of Biological Chemistry and Molecular Pharmacology, Blavatnik Institute, Harvard Medical School, Boston, MA, 02115, USA.
| |
Collapse
|
24
|
Yu D, Liang Y, Kim C, Jaganathan A, Ji D, Han X, Yang X, Jia Y, Gu R, Wang C, Zhang Q, Cheung KL, Zhou MM, Zeng L. Structural mechanism of BRD4-NUT and p300 bipartite interaction in propagating aberrant gene transcription in chromatin in NUT carcinoma. Nat Commun 2023; 14:378. [PMID: 36690674 PMCID: PMC9870903 DOI: 10.1038/s41467-023-36063-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Accepted: 01/13/2023] [Indexed: 01/25/2023] Open
Abstract
BRD4-NUT, a driver fusion mutant in rare and highly aggressive NUT carcinoma, acts in aberrant transcription of anti-differentiation genes by recruiting histone acetyltransferase (HAT) p300 and promoting p300-driven histone hyperacetylation and nuclear condensation in chromatin. However, the molecular basis of how BRD4-NUT recruits and activates p300 remains elusive. Here, we report that BRD4-NUT contains two transactivation domains (TADs) in NUT that bind to the TAZ2 domain in p300. Our NMR structures reveal that NUT TADs adopt amphipathic helices when bound to the four-helical bundle TAZ2 domain. The NUT protein forms liquid-like droplets in-vitro that are enhanced by TAZ2 binding in 1:2 stoichiometry. The TAD/TAZ2 bipartite binding in BRD4-NUT/p300 triggers allosteric activation of p300 and acetylation-driven liquid-like condensation on chromatin that comprise histone H3 lysine 27 and 18 acetylation and transcription proteins BRD4L/S, CDK9, MED1, and RNA polymerase II. The BRD4-NUT/p300 chromatin condensation is key for activating transcription of pro-proliferation genes such as ALX1, resulting ALX1/Snail signaling and epithelial-to-mesenchymal transition. Our study provides a previously underappreciated structural mechanism illuminating BRD4-NUT's bipartite p300 recruitment and activation in NUT carcinoma that nucleates a feed-forward loop for propagating histone hyperacetylation and chromatin condensation to sustain aberrant anti-differentiation gene transcription and perpetual tumor cell growth.
Collapse
Affiliation(s)
- Di Yu
- Bethune Institute of Epigenetic Medicine, The First Hospital of Jilin University, Changchun, Jilin, 130021, China
- International Center of Future Science, Jilin University, Changchun, 130012, China
| | - Yingying Liang
- Bethune Institute of Epigenetic Medicine, The First Hospital of Jilin University, Changchun, Jilin, 130021, China
- International Center of Future Science, Jilin University, Changchun, 130012, China
| | - Claudia Kim
- Department of Pharmacological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
| | - Anbalagan Jaganathan
- Department of Pharmacological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
| | - Donglei Ji
- Bethune Institute of Epigenetic Medicine, The First Hospital of Jilin University, Changchun, Jilin, 130021, China
- International Center of Future Science, Jilin University, Changchun, 130012, China
| | - Xinye Han
- Bethune Institute of Epigenetic Medicine, The First Hospital of Jilin University, Changchun, Jilin, 130021, China
- International Center of Future Science, Jilin University, Changchun, 130012, China
| | - Xuelan Yang
- Bethune Institute of Epigenetic Medicine, The First Hospital of Jilin University, Changchun, Jilin, 130021, China
- International Center of Future Science, Jilin University, Changchun, 130012, China
| | - Yanjie Jia
- Bethune Institute of Epigenetic Medicine, The First Hospital of Jilin University, Changchun, Jilin, 130021, China
| | - Ruirui Gu
- Bethune Institute of Epigenetic Medicine, The First Hospital of Jilin University, Changchun, Jilin, 130021, China
- International Center of Future Science, Jilin University, Changchun, 130012, China
| | - Chunyu Wang
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, Jilin, 130012, China
| | - Qiang Zhang
- Bethune Institute of Epigenetic Medicine, The First Hospital of Jilin University, Changchun, Jilin, 130021, China
| | - Ka Lung Cheung
- Department of Pharmacological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
| | - Ming-Ming Zhou
- Department of Pharmacological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA.
| | - Lei Zeng
- Bethune Institute of Epigenetic Medicine, The First Hospital of Jilin University, Changchun, Jilin, 130021, China.
- International Center of Future Science, Jilin University, Changchun, 130012, China.
| |
Collapse
|
25
|
Luo M, Zhang Y, Xu Z, Lv S, Wei Q, Dang Q. Experimental analysis of bladder cancer-associated mutations in EP300 identifies EP300-R1627W as a driver mutation. Mol Med 2023; 29:7. [PMID: 36647005 PMCID: PMC9843983 DOI: 10.1186/s10020-023-00608-7] [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: 03/08/2022] [Accepted: 12/27/2022] [Indexed: 01/18/2023] Open
Abstract
BACKGROUND Bladder cancer (BCa) is the most common malignant tumor of the urinary system, with transitional cell carcinoma (TCC) being the predominant type. EP300 encodes a lysine acetyltransferase that regulates a large subset of genes by acetylating histones and non-histone proteins. We previously identified several bladder cancer-associated mutations in EP300 using high-throughput sequencing; however, the functional consequences of these mutations remain unclear. METHODS Bladder cancer cells T24 and TCC-SUP were infected with shEP300 lentiviruses to generate stable EP300 knockdown cell lines. The expression levels of EP300, p16 and p21 were detected by real-time PCR and western blots. The transcriptional activity of p16 and p21 were detected by dual luciferase assay. Cell proliferation assay, flow cytometric analyses of cell cycle, invasion assay and xenograft tumor model were used to measure the effect of EP300-R1627W mutation in bladder cancer. Immunoprecipitation was used to explore the relationship between EP300-R1627W mutation and p53. Structural analysis was used to detect the structure of EP300-R1627W protein compared to EP300-wt protein. RESULTS we screened the mutations of EP300 and found that the EP300-R1627W mutation significantly impairs EP300 transactivation activity. Notably, we demonstrated that the R1627W mutation impairs EP300 acetyltransferase activity, potentially by interfering with substrate binding. Finally, we show that EP300-R1627W is more aggressive in growth and invasion in vitro and in vivo compared to cells expressing EP300-wt. We also found that the EP300-R1627W mutation occurs frequently in seven different types of cancers. CONCLUSION In summary, our work defines a driver role of EP300-R1627W in bladder cancer development and progression.
Collapse
Affiliation(s)
- Mayao Luo
- grid.416466.70000 0004 1757 959XDepartment of Urology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515 Guangdong China
| | - Yifan Zhang
- grid.416466.70000 0004 1757 959XDepartment of Urology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515 Guangdong China
| | - Zhuofan Xu
- grid.416466.70000 0004 1757 959XDepartment of Urology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515 Guangdong China
| | - Shidong Lv
- grid.416466.70000 0004 1757 959XDepartment of Urology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515 Guangdong China
| | - Qiang Wei
- grid.416466.70000 0004 1757 959XDepartment of Urology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515 Guangdong China
| | - Qiang Dang
- grid.416466.70000 0004 1757 959XDepartment of Urology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515 Guangdong China
| |
Collapse
|
26
|
Control of protein stability by post-translational modifications. Nat Commun 2023; 14:201. [PMID: 36639369 PMCID: PMC9839724 DOI: 10.1038/s41467-023-35795-8] [Citation(s) in RCA: 85] [Impact Index Per Article: 85.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Accepted: 01/02/2023] [Indexed: 01/15/2023] Open
Abstract
Post-translational modifications (PTMs) can occur on specific amino acids localized within regulatory domains of target proteins, which control a protein's stability. These regions, called degrons, are often controlled by PTMs, which act as signals to expedite protein degradation (PTM-activated degrons) or to forestall degradation and stabilize a protein (PTM-inactivated degrons). We summarize current knowledge of the regulation of protein stability by various PTMs. We aim to display the variety and breadth of known mechanisms of regulation as well as highlight common themes in PTM-regulated degrons to enhance potential for identifying novel drug targets where druggable targets are currently lacking.
Collapse
|
27
|
Stabenau KA, Samuels TL, Lam TK, Mathison AJ, Wells C, Altman KW, Battle MA, Johnston N. Pepsinogen/Proton Pump Co-Expression in Barrett's Esophageal Cells Induces Cancer-Associated Changes. Laryngoscope 2023; 133:59-69. [PMID: 35315085 DOI: 10.1002/lary.30109] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Revised: 02/27/2022] [Accepted: 03/04/2022] [Indexed: 02/02/2023]
Abstract
EDUCATIONAL OBJECTIVE At the conclusion of this presentation, participants should better understand the carcinogenic potential of pepsin and proton pump expression in Barrett's esophagus. OBJECTIVE Barrett's esophagus (BE) is a well-known risk factor for esophageal adenocarcinoma (EAC). Gastric H+ /K+ ATPase proton pump and pepsin expression has been demonstrated in some cases of BE; however, the contribution of local pepsin and proton pump expression to carcinogenesis is unknown. In this study, RNA sequencing was used to examine global transcriptomic changes in a BE cell line ectopically expressing pepsinogen and/or gastric H+ /K+ ATPase proton pumps. STUDY DESIGN In vitro translational. METHODS BAR-T, a human BE cell line devoid of expression of pepsinogen or proton pumps, was transduced by lentivirus-encoding pepsinogen (PGA5) and/or gastric proton pump subunits (ATP4A, ATP4B). Changes relative to the parental line were assessed by RNA sequencing. RESULTS Top canonical pathways associated with protein-coding genes differentially expressed in pepsinogen and/or proton pump expressing BAR-T cells included those involved in the tumor microenvironment and epithelial-mesenchymal transition. Top upstream regulators of coding transcripts included TGFB1 and ERBB2, which are associated with the pathogenesis and prognosis of BE and EAC. Top upstream regulators of noncoding transcripts included p300-CBP, I-BET-151, and CD93, which have previously described associations with EAC or carcinogenesis. The top associated disease of both coding and noncoding transcripts was cancer. CONCLUSIONS These data support the carcinogenic potential of pepsin and proton pump expression in BE and reveal molecular pathways affected by their expression. Further study is warranted to investigate the role of these pathways in carcinogenesis associated with BE. LEVEL OF EVIDENCE NA Laryngoscope, 133:59-69, 2023.
Collapse
Affiliation(s)
- Kaleigh A Stabenau
- Department of Otolaryngology and Communication Sciences, Medical College of Wisconsin, Milwaukee, Wisconsin, USA
| | - Tina L Samuels
- Department of Otolaryngology and Communication Sciences, Medical College of Wisconsin, Milwaukee, Wisconsin, USA
| | - Tina K Lam
- Department of Otolaryngology and Communication Sciences, Medical College of Wisconsin, Milwaukee, Wisconsin, USA
| | - Angela J Mathison
- Genomic Sciences and Precision Medicine Center, Medical College of Wisconsin, Milwaukee, Wisconsin, USA.,Division of Research, Department of Surgery, Medical College of Wisconsin, Milwaukee, Wisconsin, USA
| | - Clive Wells
- Department of Cell Biology, Neurobiology and Anatomy, Medical College of Wisconsin, Milwaukee, Wisconsin, USA
| | - Kenneth W Altman
- Department of Otolaryngology, Geisinger Health System, Danville, California, USA
| | - Michele A Battle
- Department of Cell Biology, Neurobiology and Anatomy, Medical College of Wisconsin, Milwaukee, Wisconsin, USA
| | - Nikki Johnston
- Department of Otolaryngology and Communication Sciences, Medical College of Wisconsin, Milwaukee, Wisconsin, USA.,Department of Microbiology and Immunology, Medical College of Wisconsin, Milwaukee, Wisconsin, USA
| |
Collapse
|
28
|
Kumar A, Emdad L, Fisher PB, Das SK. Targeting epigenetic regulation for cancer therapy using small molecule inhibitors. Adv Cancer Res 2023; 158:73-161. [PMID: 36990539 DOI: 10.1016/bs.acr.2023.01.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
Abstract
Cancer cells display pervasive changes in DNA methylation, disrupted patterns of histone posttranslational modification, chromatin composition or organization and regulatory element activities that alter normal programs of gene expression. It is becoming increasingly clear that disturbances in the epigenome are hallmarks of cancer, which are targetable and represent attractive starting points for drug creation. Remarkable progress has been made in the past decades in discovering and developing epigenetic-based small molecule inhibitors. Recently, epigenetic-targeted agents in hematologic malignancies and solid tumors have been identified and these agents are either in current clinical trials or approved for treatment. However, epigenetic drug applications face many challenges, including low selectivity, poor bioavailability, instability and acquired drug resistance. New multidisciplinary approaches are being designed to overcome these limitations, e.g., applications of machine learning, drug repurposing, high throughput virtual screening technologies, to identify selective compounds with improved stability and better bioavailability. We provide an overview of the key proteins that mediate epigenetic regulation that encompass histone and DNA modifications and discuss effector proteins that affect the organization of chromatin structure and function as well as presently available inhibitors as potential drugs. Current anticancer small-molecule inhibitors targeting epigenetic modified enzymes that have been approved by therapeutic regulatory authorities across the world are highlighted. Many of these are in different stages of clinical evaluation. We also assess emerging strategies for combinatorial approaches of epigenetic drugs with immunotherapy, standard chemotherapy or other classes of agents and advances in the design of novel epigenetic therapies.
Collapse
|
29
|
Hatakeyama D, Sunada H, Totani Y, Watanabe T, Felletár I, Fitchett A, Eravci M, Anagnostopoulou A, Miki R, Okada A, Abe N, Kuzuhara T, Kemenes I, Ito E, Kemenes G. Molecular and functional characterization of an evolutionarily conserved CREB-binding protein in the Lymnaea CNS. FASEB J 2022; 36:e22593. [PMID: 36251357 PMCID: PMC9828244 DOI: 10.1096/fj.202101225rr] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Revised: 08/30/2022] [Accepted: 09/26/2022] [Indexed: 01/12/2023]
Abstract
In eukaryotes, CREB-binding protein (CBP), a coactivator of CREB, functions both as a platform for recruiting other components of the transcriptional machinery and as a histone acetyltransferase (HAT) that alters chromatin structure. We previously showed that the transcriptional activity of cAMP-responsive element binding protein (CREB) plays a crucial role in neuronal plasticity in the pond snail Lymnaea stagnalis. However, there is no information on the molecular structure and HAT activity of CBP in the Lymnaea central nervous system (CNS), hindering an investigation of its postulated role in long-term memory (LTM). Here, we characterize the Lymnaea CBP (LymCBP) gene and identify a conserved domain of LymCBP as a functional HAT. Like CBPs of other species, LymCBP possesses functional domains, such as the KIX domain, which is essential for interaction with CREB and was shown to regulate LTM. In-situ hybridization showed that the staining patterns of LymCBP mRNA in CNS are very similar to those of Lymnaea CREB1. A particularly strong LymCBP mRNA signal was observed in the cerebral giant cell (CGC), an identified extrinsic modulatory interneuron of the feeding circuit, the key to both appetitive and aversive LTM for taste. Biochemical experiments using the recombinant protein of the LymCBP HAT domain showed that its enzymatic activity was blocked by classical HAT inhibitors. Preincubation of the CNS with such inhibitors blocked cAMP-induced synaptic facilitation between the CGC and an identified follower motoneuron of the feeding system. Taken together, our findings suggest a role for the HAT activity of LymCBP in synaptic plasticity in the feeding circuitry.
Collapse
Affiliation(s)
- Dai Hatakeyama
- Sussex NeuroscienceSchool of Life Sciences, University of SussexBrightonUK,Faculty of Pharmaceutical SciencesTokushima Bunri UniversityTokushimaJapan
| | - Hiroshi Sunada
- Kagawa School of Pharmaceutical Sciences, Tokushima Bunri UniversitySanukiJapan,Present address:
Advanced Medicine, Innovation and Clinical Research CentreTottori University HospitalYonagoJapan
| | - Yuki Totani
- Department of BiologyWaseda UniversityTokyoJapan
| | | | - Ildikó Felletár
- Sussex NeuroscienceSchool of Life Sciences, University of SussexBrightonUK
| | - Adam Fitchett
- Sussex NeuroscienceSchool of Life Sciences, University of SussexBrightonUK
| | - Murat Eravci
- Sussex NeuroscienceSchool of Life Sciences, University of SussexBrightonUK
| | - Aikaterini Anagnostopoulou
- Sussex NeuroscienceSchool of Life Sciences, University of SussexBrightonUK,Present address:
School of Life SciencesUniversity of WestminsterLondonUK
| | - Ryosuke Miki
- Faculty of Pharmaceutical SciencesTokushima Bunri UniversityTokushimaJapan
| | - Ayano Okada
- Faculty of Pharmaceutical SciencesTokushima Bunri UniversityTokushimaJapan
| | - Naoya Abe
- Faculty of Pharmaceutical SciencesTokushima Bunri UniversityTokushimaJapan
| | - Takashi Kuzuhara
- Faculty of Pharmaceutical SciencesTokushima Bunri UniversityTokushimaJapan
| | - Ildikó Kemenes
- Sussex NeuroscienceSchool of Life Sciences, University of SussexBrightonUK
| | - Etsuro Ito
- Kagawa School of Pharmaceutical Sciences, Tokushima Bunri UniversitySanukiJapan,Department of BiologyWaseda UniversityTokyoJapan
| | - György Kemenes
- Sussex NeuroscienceSchool of Life Sciences, University of SussexBrightonUK
| |
Collapse
|
30
|
Tian X, Suarez D, Thomson D, Li W, King EA, LaFrance L, Boehm J, Barton L, Di Marco C, Martyr C, Thalji R, Medina J, Knight S, Heerding D, Gao E, Nartey E, Cecconie T, Nixon C, Zhang G, Berrodin TJ, Phelps C, Patel A, Bai X, Lind K, Prabhu N, Messer J, Zhu Z, Shewchuk L, Reid R, Graves AP, McHugh C, Mangatt B. Discovery of Proline-Based p300/CBP Inhibitors Using DNA-Encoded Library Technology in Combination with High-Throughput Screening. J Med Chem 2022; 65:14391-14408. [DOI: 10.1021/acs.jmedchem.2c00670] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Xinrong Tian
- Research and Development, GlaxoSmithKline, 1250 South Collegeville Road, Collegeville, Pennsylvania 19426, United States
| | - Dominic Suarez
- Research and Development, GlaxoSmithKline, 1250 South Collegeville Road, Collegeville, Pennsylvania 19426, United States
| | - Douglas Thomson
- Cellzome GmbH, A GlaxoSmithKline Company, Meyerhofstrasse 1, 69117 Heidelberg, Germany
| | - William Li
- Research and Development, GlaxoSmithKline, 1250 South Collegeville Road, Collegeville, Pennsylvania 19426, United States
| | - Elizabeth A. King
- Research and Development, GlaxoSmithKline, 1250 South Collegeville Road, Collegeville, Pennsylvania 19426, United States
| | - Louis LaFrance
- Research and Development, GlaxoSmithKline, 1250 South Collegeville Road, Collegeville, Pennsylvania 19426, United States
| | - Jeffrey Boehm
- Research and Development, GlaxoSmithKline, 1250 South Collegeville Road, Collegeville, Pennsylvania 19426, United States
| | - Linda Barton
- Research and Development, GlaxoSmithKline, 1250 South Collegeville Road, Collegeville, Pennsylvania 19426, United States
| | - Christina Di Marco
- Research and Development, GlaxoSmithKline, 1250 South Collegeville Road, Collegeville, Pennsylvania 19426, United States
| | - Cuthbert Martyr
- Research and Development, GlaxoSmithKline, 1250 South Collegeville Road, Collegeville, Pennsylvania 19426, United States
| | - Reema Thalji
- Research and Development, GlaxoSmithKline, 1250 South Collegeville Road, Collegeville, Pennsylvania 19426, United States
| | - Jesus Medina
- Research and Development, GlaxoSmithKline, 1250 South Collegeville Road, Collegeville, Pennsylvania 19426, United States
| | - Steven Knight
- Research and Development, GlaxoSmithKline, 1250 South Collegeville Road, Collegeville, Pennsylvania 19426, United States
| | - Dirk Heerding
- Research and Development, GlaxoSmithKline, 1250 South Collegeville Road, Collegeville, Pennsylvania 19426, United States
| | - Enoch Gao
- Research and Development, GlaxoSmithKline, 1250 South Collegeville Road, Collegeville, Pennsylvania 19426, United States
| | - Eldridge Nartey
- Research and Development, GlaxoSmithKline, 1250 South Collegeville Road, Collegeville, Pennsylvania 19426, United States
| | - Ted Cecconie
- Research and Development, GlaxoSmithKline, 1250 South Collegeville Road, Collegeville, Pennsylvania 19426, United States
| | - Christopher Nixon
- Research and Development, GlaxoSmithKline, 1250 South Collegeville Road, Collegeville, Pennsylvania 19426, United States
| | - Guofeng Zhang
- Research and Development, GlaxoSmithKline, 1250 South Collegeville Road, Collegeville, Pennsylvania 19426, United States
| | - Thomas J. Berrodin
- Research and Development, GlaxoSmithKline, 1250 South Collegeville Road, Collegeville, Pennsylvania 19426, United States
| | - Christopher Phelps
- New Chemical Entity Molecular Discovery, GlaxoSmithKline, 200 Cambridgepark Drive, Cambridge, Massachusetts 02140, United States
| | - Amish Patel
- New Chemical Entity Molecular Discovery, GlaxoSmithKline, 200 Cambridgepark Drive, Cambridge, Massachusetts 02140, United States
| | - Xiaopeng Bai
- New Chemical Entity Molecular Discovery, GlaxoSmithKline, 200 Cambridgepark Drive, Cambridge, Massachusetts 02140, United States
| | - Ken Lind
- New Chemical Entity Molecular Discovery, GlaxoSmithKline, 200 Cambridgepark Drive, Cambridge, Massachusetts 02140, United States
| | - Ninad Prabhu
- New Chemical Entity Molecular Discovery, GlaxoSmithKline, 200 Cambridgepark Drive, Cambridge, Massachusetts 02140, United States
| | - Jeffrey Messer
- New Chemical Entity Molecular Discovery, GlaxoSmithKline, 200 Cambridgepark Drive, Cambridge, Massachusetts 02140, United States
| | - Zhengrong Zhu
- New Chemical Entity Molecular Discovery, GlaxoSmithKline, 200 Cambridgepark Drive, Cambridge, Massachusetts 02140, United States
| | - Lisa Shewchuk
- Research and Development, GlaxoSmithKline, 1250 South Collegeville Road, Collegeville, Pennsylvania 19426, United States
| | - Rob Reid
- Research and Development, GlaxoSmithKline, 1250 South Collegeville Road, Collegeville, Pennsylvania 19426, United States
| | - Alan P. Graves
- Research and Development, GlaxoSmithKline, 1250 South Collegeville Road, Collegeville, Pennsylvania 19426, United States
| | - Charles McHugh
- Research and Development, GlaxoSmithKline, 1250 South Collegeville Road, Collegeville, Pennsylvania 19426, United States
| | - Biju Mangatt
- Research and Development, GlaxoSmithKline, 1250 South Collegeville Road, Collegeville, Pennsylvania 19426, United States
| |
Collapse
|
31
|
Activation of Nrf2 to Optimise Immune Responses to Intracerebral Haemorrhage. Biomolecules 2022; 12:biom12101438. [PMID: 36291647 PMCID: PMC9599325 DOI: 10.3390/biom12101438] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2022] [Revised: 09/30/2022] [Accepted: 10/04/2022] [Indexed: 11/17/2022] Open
Abstract
Haemorrhage into the brain parenchyma can be devastating. This manifests as spontaneous intracerebral haemorrhage (ICH) after head trauma, and in the context of vascular dementia. Randomised controlled trials have not reliably shown that haemostatic treatments aimed at limiting ICH haematoma expansion and surgical approaches to reducing haematoma volume are effective. Consequently, treatments to modulate the pathophysiological responses to ICH, which may cause secondary brain injury, are appealing. Following ICH, microglia and monocyte derived cells are recruited to the peri-haematomal environment where they phagocytose haematoma breakdown products and secrete inflammatory cytokines, which may trigger both protective and harmful responses. The transcription factor Nrf2, is activated by oxidative stress, is highly expressed by central nervous system microglia and macroglia. When active, Nrf2 induces a transcriptional programme characterised by increased expression of antioxidant, haem and heavy metal detoxification and proteostasis genes, as well as suppression of proinflammatory factors. Therefore, Nrf2 activation may facilitate adaptive-protective immune cell responses to ICH by boosting resistance to oxidative stress and heavy metal toxicity, whilst limiting harmful inflammatory signalling, which can contribute to further blood brain barrier dysfunction and cerebral oedema. In this review, we consider the responses of immune cells to ICH and how these might be modulated by Nrf2 activation. Finally, we propose potential therapeutic strategies to harness Nrf2 to improve the outcomes of patients with ICH.
Collapse
|
32
|
Potential role of Marine Bioactive Compounds targeting signaling pathways in cancer: A review. Eur J Pharmacol 2022; 936:175330. [DOI: 10.1016/j.ejphar.2022.175330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Revised: 10/12/2022] [Accepted: 10/13/2022] [Indexed: 11/23/2022]
|
33
|
Bhattacharya A, Chatterjee S, Bhaduri U, Singh AK, Vasudevan M, Sashidhara KV, Guha R, Nazir A, Rath SK, Natesh N, Kundu TK. Butyrylation Meets Adipogenesis-Probed by a p300-Catalyzed Acylation-Specific Small Molecule Inhibitor: Implication in Anti-obesity Therapy. J Med Chem 2022; 65:12273-12291. [PMID: 36074919 DOI: 10.1021/acs.jmedchem.2c00943] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
The enzyme p300, besides having acetyltransferase activity, can also catalyze other acylation modifications, whose physiological implications are still being investigated. Here, we report that the level of histone butyrylation increases globally as well as locally in the promoters of pro-adipogenic genes during adipogenesis. To delineate the role of p300-catalyzed butyrylation from acetylation in adipogenesis, we identified a semisynthetic derivative (LTK-14A) of garcinol, which specifically inhibited histone butyrylation without affecting acetylation. Treatment of 3T3L1 cells with LTK-14A abolished adipogenesis with downregulation of pro-adipogenic genes along with inhibition of H4K5 butyrylation. Administering LTK-14A to high-fat diet-fed and genetically obese db/db mice led to attenuation/decrease in their weight gain. The reduced obesity could be partially attributed to the inhibition of H4K5 butyrylation in adipocytes and liver. This report therefore not only, for the first time, causally links histone butyrylation with adipogenesis but also presents a probable candidate for anti-obesity therapeutics.
Collapse
Affiliation(s)
- Aditya Bhattacharya
- Transcription and Disease Laboratory, Molecular Biology and Genetics Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Bangalore 560064, India
| | - Sourav Chatterjee
- Transcription and Disease Laboratory, Molecular Biology and Genetics Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Bangalore 560064, India
| | - Utsa Bhaduri
- Chromatin Biology Laboratory, Molecular Biology and Genetics Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Bangalore 560064, India
| | - Akash Kumar Singh
- Transcription and Disease Laboratory, Molecular Biology and Genetics Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Bangalore 560064, India
| | | | - Koneni V Sashidhara
- Division of Medicinal and Process Chemistry, CSIR-Central Drug Research Institute, Lucknow 226031, India
| | - Rajdeep Guha
- Division of Laboratory Animal Facility, CSIR-Central Drug Research Institute, Lucknow 226031, India
| | - Aamir Nazir
- Division of Toxicology and Experimental Medicine, CSIR-Central Drug Research Institute, Lucknow 226031, India
| | - Srikanta Kumar Rath
- Division of Toxicology and Experimental Medicine, CSIR-Central Drug Research Institute, Lucknow 226031, India
| | - Nagashayana Natesh
- Central Government Health Scheme Wellness Centre Number 8, Domlur, Bangalore 560071, India
| | - Tapas K Kundu
- Transcription and Disease Laboratory, Molecular Biology and Genetics Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Bangalore 560064, India.,Division of Neuroscience and Aging Biology, CSIR-Central Drug Research Institute, Lucknow 226031, India
| |
Collapse
|
34
|
Kumar J, Al-Kawaaz M, Martin BA, Hegazi MM, Tan B, Gratzinger D. Histiocytic Sarcoma With CCND1 Gene Rearrangement Clonally Related and Transdifferentiated From Mantle Cell Lymphoma. Am J Clin Pathol 2022; 158:449-455. [PMID: 35964234 DOI: 10.1093/ajcp/aqac087] [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: 03/24/2022] [Accepted: 06/02/2022] [Indexed: 11/12/2022] Open
Abstract
OBJECTIVES Histiocytic neoplasms demonstrate shared gene translocations and clonal immunoglobulin gene rearrangements in cases of associated B-cell lymphomas. However, the evolution of these related disease processes remains largely uncertain, especially in the setting of a prior mantle cell lymphoma. METHODS We describe a unique case of a histiocytic sarcoma that transdifferentiated from blastoid mantle cell lymphoma after extensive therapy. Cytogenic and molecular studies were performed and provided evidence for clonal progression. RESULTS We present the first reported case of a patient with blastoid mantle cell lymphoma harboring a CCND1 rearrangement that progressed despite multiple therapeutic regimens and ultimately transdifferentiated into histiocytic sarcoma. The histiocytic sarcoma demonstrated a CCND1 rearrangement and targeted next-generation sequencing showed a pathogenic variant in NRAS, a gene involved in the RAS/MAPK pathway, known to play a role in the pathogenesis of histiocytic sarcomas. TP53, NOTCH2, CREBBP, and NFKBIE variants were also identified, which are often seen in B-cell lymphomas, while rarely described in histiocytic sarcoma. CONCLUSIONS To our knowledge, this is the first report to provide evidence for clonal evolution of histiocytic sarcoma from blastoid mantle cell lymphoma based on cytogenic and molecular findings. The patient's protracted therapeutic course may have acted as an evolutionary driver promoting this transdifferentiation process.
Collapse
Affiliation(s)
- Jyoti Kumar
- Department of Pathology, Stanford University School of Medicine, Stanford, CA, USA
| | - Mustafa Al-Kawaaz
- Department of Pathology, University of Louisville School of Medicine, Louisville, KY, USA
| | - Brock A Martin
- Department of Pathology, University of Louisville School of Medicine, Louisville, KY, USA
| | - Mohamed M Hegazi
- Hematology & Oncology, University of Louisville School of Medicine, Louisville, KY, USA
| | - Brent Tan
- Department of Pathology, Stanford University School of Medicine, Stanford, CA, USA
| | - Dita Gratzinger
- Department of Pathology, Stanford University School of Medicine, Stanford, CA, USA
| |
Collapse
|
35
|
Hatazawa S, Liu J, Takizawa Y, Zandian M, Negishi L, Kutateladze TG, Kurumizaka H. Structural basis for binding diversity of acetyltransferase p300 to the nucleosome. iScience 2022; 25:104563. [PMID: 35754730 PMCID: PMC9218434 DOI: 10.1016/j.isci.2022.104563] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Revised: 05/12/2022] [Accepted: 06/02/2022] [Indexed: 11/22/2022] Open
Abstract
p300 is a human acetyltransferase that associates with chromatin and mediates vital cellular processes. We now report the cryo-electron microscopy structures of the p300 catalytic core in complex with the nucleosome core particle (NCP). In the most resolved structure, the HAT domain and bromodomain of p300 contact nucleosomal DNA at superhelical locations 2 and 3, and the catalytic site of the HAT domain are positioned near the N-terminal tail of histone H4. Mutations of the p300-DNA interfacial residues of p300 substantially decrease binding to NCP. Three additional classes of p300-NCP complexes show different modes of the p300-NCP complex formation. Our data provide structural details critical to our understanding of the mechanism by which p300 acetylates multiple sites on the nucleosome.
Collapse
Affiliation(s)
- Suguru Hatazawa
- Laboratory of Chromatin Structure and Function, Institute for Quantitative Biosciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-0032, Japan
- Department of Biological Sciences, Graduate School of Science, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-0032, Japan
| | - Jiuyang Liu
- Department of Pharmacology, University of Colorado School of Medicine, Aurora, CO 80045, USA
| | - Yoshimasa Takizawa
- Laboratory of Chromatin Structure and Function, Institute for Quantitative Biosciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-0032, Japan
| | - Mohamad Zandian
- Department of Pharmacology, University of Colorado School of Medicine, Aurora, CO 80045, USA
| | - Lumi Negishi
- Laboratory of Chromatin Structure and Function, Institute for Quantitative Biosciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-0032, Japan
| | - Tatiana G. Kutateladze
- Department of Pharmacology, University of Colorado School of Medicine, Aurora, CO 80045, USA
| | - Hitoshi Kurumizaka
- Laboratory of Chromatin Structure and Function, Institute for Quantitative Biosciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-0032, Japan
- Department of Biological Sciences, Graduate School of Science, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-0032, Japan
| |
Collapse
|
36
|
Nie S, Wu F, Wu J, Li X, Zhou C, Yao Y, Song Y. Structure-activity relationship and antitumor activity of 1,4-pyrazine-containing inhibitors of histone acetyltransferases P300/CBP. Eur J Med Chem 2022; 237:114407. [PMID: 35512565 PMCID: PMC9165588 DOI: 10.1016/j.ejmech.2022.114407] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Revised: 04/13/2022] [Accepted: 04/20/2022] [Indexed: 01/10/2023]
Abstract
Acetylation of histone lysine residues by histone acetyltransferase (HAT) p300 and its paralog CBP play important roles in gene regulation in health and diseases. The HAT domain of p300/CBP has been found to be a potential drug target for cancer. Compound screening followed by structure-activity relationship studies yielded a novel series of 1,4-pyrazine-containing inhibitors of p300/CBP HAT with their IC50s as low as 1.4 μM. Enzyme kinetics and other studies support the most potent compound 29 is a competitive inhibitor of p300 HAT against the substrate histone. It exhibited a high selectivity for p300 and CBP, with negligible activity on other classes of HATs in human. Compound 29 inhibited cellular acetylation of several histone lysine residues and showed strong activity against proliferation of a panel of solid and blood cancer cells. These results indicate it is a novel pharmacological lead for drug development targeting these cancers as well as a useful chemical probe for biological studies of p300/CBP.
Collapse
Affiliation(s)
- Shenyou Nie
- Department of Pharmacology & Chemical Biology, Baylor College of Medicine, 1 Baylor Plaza, Houston, TX, 77030, USA
| | - Fangrui Wu
- Department of Pharmacology & Chemical Biology, Baylor College of Medicine, 1 Baylor Plaza, Houston, TX, 77030, USA
| | - Jingyu Wu
- Department of Pharmacology & Chemical Biology, Baylor College of Medicine, 1 Baylor Plaza, Houston, TX, 77030, USA
| | - Xin Li
- Department of Pharmacology & Chemical Biology, Baylor College of Medicine, 1 Baylor Plaza, Houston, TX, 77030, USA
| | - Chao Zhou
- Department of Pharmacology & Chemical Biology, Baylor College of Medicine, 1 Baylor Plaza, Houston, TX, 77030, USA
| | - Yuan Yao
- Department of Pharmacology & Chemical Biology, Baylor College of Medicine, 1 Baylor Plaza, Houston, TX, 77030, USA
| | - Yongcheng Song
- Department of Pharmacology & Chemical Biology, Baylor College of Medicine, 1 Baylor Plaza, Houston, TX, 77030, USA; Dan L. Duncan Cancer Center, Baylor College of Medicine, 1 Baylor Plaza, Houston, TX, 77030, USA.
| |
Collapse
|
37
|
Amarante ADM, da Silva ICDA, Carneiro VC, Vicentino ARR, Pinto MDA, Higa LM, Moharana KC, Talyuli OAC, Venancio TM, de Oliveira PL, Fantappié MR. Zika virus infection drives epigenetic modulation of immunity by the histone acetyltransferase CBP of Aedes aegypti. PLoS Negl Trop Dis 2022; 16:e0010559. [PMID: 35759510 PMCID: PMC9269902 DOI: 10.1371/journal.pntd.0010559] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Revised: 07/08/2022] [Accepted: 06/03/2022] [Indexed: 11/18/2022] Open
Abstract
Epigenetic mechanisms are responsible for a wide range of biological phenomena in insects, controlling embryonic development, growth, aging and nutrition. Despite this, the role of epigenetics in shaping insect-pathogen interactions has received little attention. Gene expression in eukaryotes is regulated by histone acetylation/deacetylation, an epigenetic process mediated by histone acetyltransferases (HATs) and histone deacetylases (HDACs). In this study, we explored the role of the Aedes aegypti histone acetyltransferase CBP (AaCBP) after infection with Zika virus (ZIKV), focusing on the two main immune tissues, the midgut and fat body. We showed that the expression and activity of AaCBP could be positively modulated by blood meal and ZIKV infection. Nevertheless, Zika-infected mosquitoes that were silenced for AaCBP revealed a significant reduction in the acetylation of H3K27 (CBP target marker), followed by downmodulation of the expression of immune genes, higher titers of ZIKV and lower survival rates. Importantly, in Zika-infected mosquitoes that were treated with sodium butyrate, a histone deacetylase inhibitor, their capacity to fight virus infection was rescued. Our data point to a direct correlation among histone hyperacetylation by AaCBP, upregulation of antimicrobial peptide genes and increased survival of Zika-infected-A. aegypti.
Collapse
Affiliation(s)
- Anderson de Mendonça Amarante
- Instituto de Bioquímica Médica Leopoldo de Meis, Programa de Biologia Molecular e Biotecnologia, Centro de Ciências da Saúde, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brasil
- Instituto Nacional de Entomologia Molecular, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brasil
| | - Isabel Caetano de Abreu da Silva
- Instituto de Bioquímica Médica Leopoldo de Meis, Programa de Biologia Molecular e Biotecnologia, Centro de Ciências da Saúde, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brasil
- Instituto Nacional de Entomologia Molecular, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brasil
| | - Vitor Coutinho Carneiro
- Division of Epigenetics, German Cancer Research Center, Im Neuenheimer Feld, Heidelberg, Germany
| | - Amanda Roberta Revoredo Vicentino
- Instituto de Bioquímica Médica Leopoldo de Meis, Programa de Biologia Molecular e Biotecnologia, Centro de Ciências da Saúde, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brasil
| | - Marcia de Amorim Pinto
- Instituto de Bioquímica Médica Leopoldo de Meis, Programa de Biologia Molecular e Biotecnologia, Centro de Ciências da Saúde, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brasil
| | - Luiza Mendonça Higa
- Departamento de Genética, Instituto de Biologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brasil
| | - Kanhu Charan Moharana
- Laboratório de Química e Função de Proteínas e Peptídeos, Centro de Biociências e Biotecnologia, Universidade Estadual do Norte Fluminense Darcy Ribeiro, Campos dos Goytacazes, Brasil
| | - Octavio A. C. Talyuli
- Instituto de Bioquímica Médica Leopoldo de Meis, Programa de Biologia Molecular e Biotecnologia, Centro de Ciências da Saúde, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brasil
- Instituto Nacional de Entomologia Molecular, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brasil
| | - Thiago Motta Venancio
- Instituto Nacional de Entomologia Molecular, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brasil
- Laboratório de Química e Função de Proteínas e Peptídeos, Centro de Biociências e Biotecnologia, Universidade Estadual do Norte Fluminense Darcy Ribeiro, Campos dos Goytacazes, Brasil
| | - Pedro Lagerblad de Oliveira
- Instituto de Bioquímica Médica Leopoldo de Meis, Programa de Biologia Molecular e Biotecnologia, Centro de Ciências da Saúde, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brasil
- Instituto Nacional de Entomologia Molecular, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brasil
| | - Marcelo Rosado Fantappié
- Instituto de Bioquímica Médica Leopoldo de Meis, Programa de Biologia Molecular e Biotecnologia, Centro de Ciências da Saúde, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brasil
- Instituto Nacional de Entomologia Molecular, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brasil
- * E-mail:
| |
Collapse
|
38
|
Kamerzell TJ, Mikell B, Chen L, Elias H, Dawn B, MacRae C, Middaugh CR. The structural basis of histone modifying enzyme specificity and promiscuity: Implications for metabolic regulation and drug design. ADVANCES IN PROTEIN CHEMISTRY AND STRUCTURAL BIOLOGY 2022; 130:189-243. [PMID: 35534108 DOI: 10.1016/bs.apcsb.2022.02.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Histone modifying enzymes regulate chromatin architecture through covalent modifications and ultimately control multiple aspects of cellular function. Disruption of histone modification leads to changes in gene expression profiles and may lead to disease. Both small molecule inhibitors and intermediary metabolites have been shown to modulate histone modifying enzyme activity although our ability to identify successful drug candidates or novel metabolic regulators of these enzymes has been limited. Using a combination of large scale in silico screens and in vivo phenotypic analysis, we identified several small molecules and intermediary metabolites with distinctive HME activity. Our approach using unsupervised learning identifies the chemical fingerprints of both small molecules and metabolites that facilitate recognition by the enzymes active sites which can be used as a blueprint to design novel inhibitors. Furthermore, this work supports the idea that histone modifying enzymes sense intermediary metabolites integrating genes, environment and cellular physiology.
Collapse
Affiliation(s)
- Tim J Kamerzell
- Department of Pharmaceutical Chemistry, The University of Kansas, Lawrence, KS, United States; Division of Internal Medicine, HCA MidWest Health, Overland Park, KS, United States; Cardiovascular Division, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, United States; Division of Cardiovascular Diseases, Cardiovascular Research Institute, University of Kansas Medical Center, Kansas City, KS, United States; Applied AI Technologies, LLC, Overland Park, KS, United States.
| | - Brittney Mikell
- Cardiovascular Division, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, United States
| | - Lei Chen
- Division of Cardiovascular Diseases, Cardiovascular Research Institute, University of Kansas Medical Center, Kansas City, KS, United States
| | - Harold Elias
- Division of Cardiovascular Diseases, Cardiovascular Research Institute, University of Kansas Medical Center, Kansas City, KS, United States
| | - Buddhadeb Dawn
- Division of Cardiovascular Diseases, Cardiovascular Research Institute, University of Kansas Medical Center, Kansas City, KS, United States
| | - Calum MacRae
- Cardiovascular Division, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, United States
| | - C Russell Middaugh
- Department of Pharmaceutical Chemistry, The University of Kansas, Lawrence, KS, United States
| |
Collapse
|
39
|
Lima T, Li TY, Mottis A, Auwerx J. Pleiotropic effects of mitochondria in aging. NATURE AGING 2022; 2:199-213. [PMID: 37118378 DOI: 10.1038/s43587-022-00191-2] [Citation(s) in RCA: 79] [Impact Index Per Article: 39.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Accepted: 02/07/2022] [Indexed: 04/30/2023]
Abstract
Aging is typified by a progressive decline in mitochondrial activity and stress resilience. Here, we review how mitochondrial stress pathways have pleiotropic effects on cellular and systemic homeostasis, which can comprise protective or detrimental responses during aging. We describe recent evidence arguing that defects in these conserved adaptive pathways contribute to aging and age-related diseases. Signaling pathways regulating the mitochondrial unfolded protein response, mitochondrial membrane dynamics, and mitophagy are discussed, emphasizing how their failure contributes to heteroplasmy and de-regulation of key metabolites. Our current understanding of how these processes are controlled and interconnected explains how mitochondria can widely impact fundamental aspects of aging.
Collapse
Affiliation(s)
- Tanes Lima
- Laboratory of Integrative Systems Physiology, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
| | - Terytty Yang Li
- Laboratory of Integrative Systems Physiology, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
| | - Adrienne Mottis
- Laboratory of Integrative Systems Physiology, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
| | - Johan Auwerx
- Laboratory of Integrative Systems Physiology, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland.
| |
Collapse
|
40
|
Salutari I, Caflisch A. Dynamics of the Histone Acetyltransferase Lysine-Rich Loop in the Catalytic Core of the CREB-Binding Protein. J Chem Inf Model 2022; 62:1014-1024. [PMID: 35119862 DOI: 10.1021/acs.jcim.1c01423] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
The tight control of transcriptional coactivators is a fundamental aspect of gene expression in cells. The regulation of the CREB-binding protein (CBP) and p300 coactivators, two paralog multidomain proteins, involves an autoinhibitory loop (AIL) of the histone acetyltransferase (HAT) domain. There is experimental evidence for the AIL engaging with the HAT binding site, thus interrupting the acetylation of histone tails or other proteins. Both CBP and p300 contain a domain of about 110 residues (called the bromodomain) that recognizes histone tails with one or more acetylated lysine side chains. Here, we investigate by molecular dynamics simulations whether the AIL of CBP (residues 1556-1618) acetylated at the side chain of Lys1595 can bind to the bromodomain. The structural instability and fast unbinding kinetics of the AIL from the bromodomain pocket suggest that the AIL is not a ligand of the bromodomain on the same protein chain. This is further supported by the absence of strong and persistent contacts at the binding interface. Furthermore, the simulations of unbinding show an initial fast detachment of the acetylated lysine and a slower phase necessary for complete AIL dissociation. We provide further evidence for the instability of the AIL intramolecular binding by comparison with a natural ligand, the histone peptide H3K56ac, which shows higher stability in the pocket.
Collapse
Affiliation(s)
- Ilaria Salutari
- Department of Biochemistry, University of Zürich, CH-8057 Zürich, Switzerland
| | - Amedeo Caflisch
- Department of Biochemistry, University of Zürich, CH-8057 Zürich, Switzerland
| |
Collapse
|
41
|
|
42
|
Karagiannakos A, Adamaki M, Tsintarakis A, Vojtesek B, Fåhraeus R, Zoumpourlis V, Karakostis K. Targeting Oncogenic Pathways in the Era of Personalized Oncology: A Systemic Analysis Reveals Highly Mutated Signaling Pathways in Cancer Patients and Potential Therapeutic Targets. Cancers (Basel) 2022; 14:cancers14030664. [PMID: 35158934 PMCID: PMC8833388 DOI: 10.3390/cancers14030664] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 01/23/2022] [Accepted: 01/24/2022] [Indexed: 12/12/2022] Open
Abstract
Cancer is the second leading cause of death globally. One of the main hallmarks in cancer is the functional deregulation of crucial molecular pathways via driver genetic events that lead to abnormal gene expression, giving cells a selective growth advantage. Driver events are defined as mutations, fusions and copy number alterations that are causally implicated in oncogenesis. Molecular analysis on tissues that have originated from a wide range of anatomical areas has shown that mutations in different members of several pathways are implicated in different cancer types. In recent decades, significant efforts have been made to incorporate this knowledge into daily medical practice, providing substantial insight towards clinical diagnosis and personalized therapies. However, since there is still a strong need for more effective drug development, a deep understanding of the involved signaling mechanisms and the interconnections between these pathways is highly anticipated. Here, we perform a systemic analysis on cancer patients included in the Pan-Cancer Atlas project, with the aim to select the ten most highly mutated signaling pathways (p53, RTK-RAS, lipids metabolism, PI-3-Kinase/Akt, ubiquitination, b-catenin/Wnt, Notch, cell cycle, homology directed repair (HDR) and splicing) and to provide a detailed description of each pathway, along with the corresponding therapeutic applications currently being developed or applied. The ultimate scope is to review the current knowledge on highly mutated pathways and to address the attractive perspectives arising from ongoing experimental studies for the clinical implementation of personalized medicine.
Collapse
Affiliation(s)
- Alexandros Karagiannakos
- Biomedical Applications Unit, Institute of Chemical Biology, National Hellenic Research Foundation (NHRF), 48 Vassileos Constantinou Avenue, 11635 Athens, Greece; (A.K.); (M.A.); (A.T.)
| | - Maria Adamaki
- Biomedical Applications Unit, Institute of Chemical Biology, National Hellenic Research Foundation (NHRF), 48 Vassileos Constantinou Avenue, 11635 Athens, Greece; (A.K.); (M.A.); (A.T.)
| | - Antonis Tsintarakis
- Biomedical Applications Unit, Institute of Chemical Biology, National Hellenic Research Foundation (NHRF), 48 Vassileos Constantinou Avenue, 11635 Athens, Greece; (A.K.); (M.A.); (A.T.)
| | - Borek Vojtesek
- Research Centre for Applied Molecular Oncology (RECAMO), Masaryk Memorial Cancer Institute, 65653 Brno, Czech Republic; (B.V.); (R.F.)
| | - Robin Fåhraeus
- Research Centre for Applied Molecular Oncology (RECAMO), Masaryk Memorial Cancer Institute, 65653 Brno, Czech Republic; (B.V.); (R.F.)
- Inserm UMRS1131, Institut de Génétique Moléculaire, Université Paris 7, Hôpital St. Louis, F-75010 Paris, France
- Department of Medical Biosciences, Umeå University, 90185 Umeå, Sweden
- International Centre for Cancer Vaccine Science, University of Gdansk, 80-822 Gdansk, Poland
| | - Vassilis Zoumpourlis
- Biomedical Applications Unit, Institute of Chemical Biology, National Hellenic Research Foundation (NHRF), 48 Vassileos Constantinou Avenue, 11635 Athens, Greece; (A.K.); (M.A.); (A.T.)
- Correspondence: (V.Z.); (K.K.)
| | - Konstantinos Karakostis
- Biomedical Applications Unit, Institute of Chemical Biology, National Hellenic Research Foundation (NHRF), 48 Vassileos Constantinou Avenue, 11635 Athens, Greece; (A.K.); (M.A.); (A.T.)
- Inserm UMRS1131, Institut de Génétique Moléculaire, Université Paris 7, Hôpital St. Louis, F-75010 Paris, France
- Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, 08193 Barcelona, Spain
- Correspondence: (V.Z.); (K.K.)
| |
Collapse
|
43
|
Shvedunova M, Akhtar A. Modulation of cellular processes by histone and non-histone protein acetylation. Nat Rev Mol Cell Biol 2022; 23:329-349. [PMID: 35042977 DOI: 10.1038/s41580-021-00441-y] [Citation(s) in RCA: 290] [Impact Index Per Article: 145.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/25/2021] [Indexed: 12/12/2022]
Abstract
Lysine acetylation is a widespread and versatile protein post-translational modification. Lysine acetyltransferases and lysine deacetylases catalyse the addition or removal, respectively, of acetyl groups at both histone and non-histone targets. In this Review, we discuss several features of acetylation and deacetylation, including their diversity of targets, rapid turnover, exquisite sensitivity to the concentrations of the cofactors acetyl-CoA, acyl-CoA and NAD+, and tight interplay with metabolism. Histone acetylation and non-histone protein acetylation influence a myriad of cellular and physiological processes, including transcription, phase separation, autophagy, mitosis, differentiation and neural function. The activity of lysine acetyltransferases and lysine deacetylases can, in turn, be regulated by metabolic states, diet and specific small molecules. Histone acetylation has also recently been shown to mediate cellular memory. These features enable acetylation to integrate the cellular state with transcriptional output and cell-fate decisions.
Collapse
Affiliation(s)
- Maria Shvedunova
- Department of Chromatin Regulation, Max Planck Institute of Immunobiology and Epigenetics, Freiburg im Breisgau, Germany
| | - Asifa Akhtar
- Department of Chromatin Regulation, Max Planck Institute of Immunobiology and Epigenetics, Freiburg im Breisgau, Germany.
| |
Collapse
|
44
|
Jang S, Hwang J, Jeong HS. The Role of Histone Acetylation in Mesenchymal Stem Cell Differentiation. Chonnam Med J 2022; 58:6-12. [PMID: 35169553 PMCID: PMC8813658 DOI: 10.4068/cmj.2022.58.1.6] [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: 11/29/2021] [Revised: 12/27/2021] [Accepted: 12/29/2021] [Indexed: 11/06/2022] Open
Abstract
The mechanism and action concerning epigenetic modifications, especially that of histone modifications, are not fully understood. However, it is clear that histone modifications play an essential role in several biological processes that are involved in cell proliferation and differentiation. In this article, we focused on how histone acetylation may result in differentiation into mesenchymal stem cells as well as histone acetylation function. Moreover, histone acetylation followed by the action of histone deacetylase inhibitors, which can result in the differentiation of stem cells into other types of cells such as adipocytes, chondrocytes, osteocytes, neurons, and other lineages, were also reviewed.
Collapse
Affiliation(s)
- Sujeong Jang
- Department of Physiology, Chonnam National University Medical School, Hwasun, Korea
| | - Jinsu Hwang
- Department of Physiology, Chonnam National University Medical School, Hwasun, Korea
| | - Han-Seong Jeong
- Department of Physiology, Chonnam National University Medical School, Hwasun, Korea
| |
Collapse
|
45
|
Singh S, Senapati P, Kundu TK. Metabolic Regulation of Lysine Acetylation: Implications in Cancer. Subcell Biochem 2022; 100:393-426. [PMID: 36301501 DOI: 10.1007/978-3-031-07634-3_12] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Lysine acetylation is the second most well-studied post-translational modification after phosphorylation. While phosphorylation regulates signaling cascades, one of the most significant roles of acetylation is regulation of chromatin structure. Acetyl-coenzyme A (acetyl-CoA) serves as the acetyl group donor for acetylation reactions mediated by lysine acetyltransferases (KATs). On the other hand, NAD+ serves as the cofactor for lysine deacetylases (KDACs). Both acetyl-CoA and NAD+ are metabolites integral to energy metabolism, and therefore, their metabolic flux can regulate the activity of KATs and KDACs impacting the epigenome. In this chapter, we review our current understanding of how metabolic pathways regulate lysine acetylation in normal and cancer cells.
Collapse
Affiliation(s)
- Siddharth Singh
- Transcription and Disease Laboratory, Molecular Biology and Genetics Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Bangalore, Karnataka, India
| | - Parijat Senapati
- Transcription and Disease Laboratory, Molecular Biology and Genetics Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Bangalore, Karnataka, India
- Beckman Research Institute, City of Hope, Duarte, CA, USA
| | - Tapas K Kundu
- Transcription and Disease Laboratory, Molecular Biology and Genetics Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Bangalore, Karnataka, India.
- Division of Cancer Biology, CSIR-Central Drug Research Institute, Lucknow, Uttar Pradesh, India.
| |
Collapse
|
46
|
Kanada R, Suzuki T, Murata T, Miyazaki M, Shimada T, Kuroha M, Minami M, Higuchi S, Tominaga Y, Naito H. 4-Pyridone-3-carboxylic acid as a benzoic acid bioisostere: Design, synthesis, and evaluation of EP300/CBP histone acetyltransferase inhibitors. Bioorg Med Chem Lett 2021; 51:128358. [PMID: 34534674 DOI: 10.1016/j.bmcl.2021.128358] [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] [Received: 07/04/2021] [Revised: 08/31/2021] [Accepted: 09/09/2021] [Indexed: 12/15/2022]
Abstract
Histone acetyltransferases (HATs) play a crucial role in post-translational modification. Among them, overexpression, mutation, or hyperfunction of EP300/CBP has been associated with various cancers. In this study, we identified the novel compound 2-chloro-5-[5-[(E)-[1-(3-chlorophenyl)-3-methyl-5-oxo-pyrazol-4-ylidene]methyl]-2-furyl]benzoic acid (1) as an EP300 HAT inhibitor via virtual screening. Further research has been focused on the design, synthesis, and in vitro biological evaluation of virtual hit derivatives. The studies revealed that 4-pyridone-3-carboxylic acid derivatives exhibited bioisosterism of benzoic acid. Replacement proved effective, providing compounds with similar EP300 HAT-inhibitory activity and improved cell growth-inhibitory activity compared to the benzoic acid analogs. Through these studies, we identified a potent and selective EP300/CBP HAT inhibitor.
Collapse
Affiliation(s)
- Ryutaro Kanada
- R&D Division, Daiichi Sankyo Co., Ltd., 1-2-58 Hiromachi, Shinagawa-ku, Tokyo 140-8710, Japan.
| | - Takashi Suzuki
- Biologics Division, Daiichi Sankyo Co., Ltd., 1-2-58 Hiromachi, Shinagawa-ku, Tokyo 140-8710, Japan
| | - Takeshi Murata
- R&D Division, Daiichi Sankyo Co., Ltd., 1-2-58 Hiromachi, Shinagawa-ku, Tokyo 140-8710, Japan
| | - Masaki Miyazaki
- Daiichi Sankyo RD Novare Co., Ltd., 1-16-13 Kitakasai, Edogawa-ku, Tokyo 134-8630, Japan
| | - Takashi Shimada
- Daiichi Sankyo RD Novare Co., Ltd., 1-16-13 Kitakasai, Edogawa-ku, Tokyo 134-8630, Japan
| | - Mutsumi Kuroha
- Daiichi Sankyo RD Novare Co., Ltd., 1-16-13 Kitakasai, Edogawa-ku, Tokyo 134-8630, Japan
| | - Megumi Minami
- Daiichi Sankyo RD Novare Co., Ltd., 1-16-13 Kitakasai, Edogawa-ku, Tokyo 134-8630, Japan
| | - Saito Higuchi
- R&D Division, Daiichi Sankyo Co., Ltd., 1-2-58 Hiromachi, Shinagawa-ku, Tokyo 140-8710, Japan
| | - Yuichi Tominaga
- R&D Division, Daiichi Sankyo Co., Ltd., 1-2-58 Hiromachi, Shinagawa-ku, Tokyo 140-8710, Japan
| | - Hiroyuki Naito
- R&D Division, Daiichi Sankyo Co., Ltd., 1-2-58 Hiromachi, Shinagawa-ku, Tokyo 140-8710, Japan
| |
Collapse
|
47
|
Thomas SP, Denu JM. Short-chain fatty acids activate acetyltransferase p300. eLife 2021; 10:72171. [PMID: 34677127 PMCID: PMC8585482 DOI: 10.7554/elife.72171] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Accepted: 10/19/2021] [Indexed: 02/06/2023] Open
Abstract
Short-chain fatty acids (SCFAs) acetate, propionate, and butyrate are produced in large quantities by the gut microbiome and contribute to a wide array of physiological processes. While the underlying mechanisms are largely unknown, many effects of SCFAs have been traced to changes in the cell's epigenetic state. Here, we systematically investigate how SCFAs alter the epigenome. Using quantitative proteomics of histone modification states, we identified rapid and sustained increases in histone acetylation after the addition of butyrate or propionate, but not acetate. While decades of prior observations would suggest that hyperacetylation induced by SCFAs are due to inhibition of histone deacetylases (HDACs), we found that propionate and butyrate instead activate the acetyltransferase p300. Propionate and butyrate are rapidly converted to the corresponding acyl-CoAs which are then used by p300 to catalyze auto-acylation of the autoinhibitory loop, activating the enzyme for histone/protein acetylation. This data challenges the long-held belief that SCFAs mainly regulate chromatin by inhibiting HDACs, and instead reveals a previously unknown mechanism of HAT activation that can explain how an influx of low levels of SCFAs alters global chromatin states.
Collapse
Affiliation(s)
- Sydney P Thomas
- Wisconsin Institute for Discovery, Madison, United States.,Department of Biomolecular Chemistry, University of Wisconsin - Madison, Madison, United States
| | - John M Denu
- Wisconsin Institute for Discovery, Madison, United States.,Department of Biomolecular Chemistry, University of Wisconsin - Madison, Madison, United States.,Morgridge Institute for Research, Madison, United States
| |
Collapse
|
48
|
Bosnakovski D, Ener ET, Cooper MS, Gearhart MD, Knights KA, Xu NC, Palumbo CA, Toso EA, Marsh GP, Maple HJ, Kyba M. Inactivation of the CIC-DUX4 oncogene through P300/CBP inhibition, a therapeutic approach for CIC-DUX4 sarcoma. Oncogenesis 2021; 10:68. [PMID: 34642317 PMCID: PMC8511258 DOI: 10.1038/s41389-021-00357-4] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Revised: 09/13/2021] [Accepted: 09/23/2021] [Indexed: 01/10/2023] Open
Abstract
CIC-DUX4 sarcoma (CDS) is a highly aggressive and metastatic small round type of predominantly pediatric sarcoma driven by a fusion oncoprotein comprising the transcriptional repressor Capicua (CIC) fused to the C-terminal transcriptional activation domain of DUX4. CDS rapidly develops resistance to chemotherapy, thus novel specific therapies are greatly needed. We demonstrate that CIC-DUX4 requires P300/CBP to induce histone H3 acetylation, activate its targets, and drive oncogenesis. We describe the synthetic route to a selective and highly potent P300/CBP inhibitor named iP300w and related stereoisomers, and find that iP300w efficiently suppresses CIC-DUX4 transcriptional activity and reverses CIC-DUX4 induced acetylation. iP300w is active at 100-fold lower concentrations than related stereoisomers or A-485. At low doses, iP300w shows specificity to CDS cancer cell lines, rapidly inducing cell cycle arrest and preventing growth of established CDS xenograft tumors when delivered in vivo. The effectiveness of iP300w to inactivate CIC-DUX4 highlights a promising therapeutic opportunity for CDS.
Collapse
Affiliation(s)
- Darko Bosnakovski
- Lillehei Heart Institute, Minneapolis, USA. .,Department of Pediatrics, University of Minnesota, Minneapolis, MN, 55455, USA. .,Faculty of Medical Sciences, University Goce Delchev - Shtip, Shtip, 2000, Republic of North Macedonia.
| | - Elizabeth T Ener
- Lillehei Heart Institute, Minneapolis, USA.,Department of Pediatrics, University of Minnesota, Minneapolis, MN, 55455, USA
| | - Mark S Cooper
- Bio-Techne (Tocris), The Watkins Building, Atlantic Road, Avonmouth, Bristol, UK
| | - Micah D Gearhart
- Department of Genetics, Cell Biology and Development, University of Minnesota, Minneapolis, MN, 55455, USA
| | - Kevin A Knights
- Bio-Techne (Tocris), The Watkins Building, Atlantic Road, Avonmouth, Bristol, UK
| | - Natalie C Xu
- Lillehei Heart Institute, Minneapolis, USA.,Department of Pediatrics, University of Minnesota, Minneapolis, MN, 55455, USA
| | - Christian A Palumbo
- Lillehei Heart Institute, Minneapolis, USA.,Department of Pediatrics, University of Minnesota, Minneapolis, MN, 55455, USA
| | - Erik A Toso
- Lillehei Heart Institute, Minneapolis, USA.,Department of Pediatrics, University of Minnesota, Minneapolis, MN, 55455, USA
| | - Graham P Marsh
- Bio-Techne (Tocris), The Watkins Building, Atlantic Road, Avonmouth, Bristol, UK
| | - Hannah J Maple
- Bio-Techne (Tocris), The Watkins Building, Atlantic Road, Avonmouth, Bristol, UK
| | - Michael Kyba
- Lillehei Heart Institute, Minneapolis, USA. .,Department of Pediatrics, University of Minnesota, Minneapolis, MN, 55455, USA.
| |
Collapse
|
49
|
Xue T, Qiu X, Liu H, Gan C, Tan Z, Xie Y, Wang Y, Ye T. Epigenetic regulation in fibrosis progress. Pharmacol Res 2021; 173:105910. [PMID: 34562602 DOI: 10.1016/j.phrs.2021.105910] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/30/2021] [Revised: 08/23/2021] [Accepted: 09/15/2021] [Indexed: 02/08/2023]
Abstract
Fibrosis, a common process of chronic inflammatory diseases, is defined as a repair response disorder when organs undergo continuous damage, ultimately leading to scar formation and functional failure. Around the world, fibrotic diseases cause high mortality, unfortunately, with limited treatment means in clinical practice. With the development and application of deep sequencing technology, comprehensively exploring the epigenetic mechanism in fibrosis has been allowed. Extensive remodeling of epigenetics controlling various cells phenotype and molecular mechanisms involved in fibrogenesis was subsequently verified. In this review, we summarize the regulatory mechanisms of DNA methylation, histone modification, noncoding RNAs (ncRNAs) and N6-methyladenosine (m6A) modification in organ fibrosis, focusing on heart, liver, lung and kidney. Additionally, we emphasize the diversity of epigenetics in the cellular and molecular mechanisms related to fibrosis. Finally, the potential and prospect of targeted therapy for fibrosis based on epigenetic is discussed.
Collapse
Affiliation(s)
- Taixiong Xue
- Sichuan University-University of Oxford Huaxi Joint Centre for Gastrointestinal Cancer, Department of Gastroenterology and Hepatology, Frontiers Science Center for Disease-Related Molecular Network, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Xingyu Qiu
- Sichuan University-University of Oxford Huaxi Joint Centre for Gastrointestinal Cancer, Department of Gastroenterology and Hepatology, Frontiers Science Center for Disease-Related Molecular Network, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Hongyao Liu
- Sichuan University-University of Oxford Huaxi Joint Centre for Gastrointestinal Cancer, Department of Gastroenterology and Hepatology, Frontiers Science Center for Disease-Related Molecular Network, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Cailing Gan
- Sichuan University-University of Oxford Huaxi Joint Centre for Gastrointestinal Cancer, Department of Gastroenterology and Hepatology, Frontiers Science Center for Disease-Related Molecular Network, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Zui Tan
- Sichuan University-University of Oxford Huaxi Joint Centre for Gastrointestinal Cancer, Department of Gastroenterology and Hepatology, Frontiers Science Center for Disease-Related Molecular Network, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Yuting Xie
- Sichuan University-University of Oxford Huaxi Joint Centre for Gastrointestinal Cancer, Department of Gastroenterology and Hepatology, Frontiers Science Center for Disease-Related Molecular Network, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Yuxi Wang
- Sichuan University-University of Oxford Huaxi Joint Centre for Gastrointestinal Cancer, Department of Gastroenterology and Hepatology, Frontiers Science Center for Disease-Related Molecular Network, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China; Targeted Tracer Research and Development Laboratory, Institute of Respiratory Health, Frontiers Science Center for Disease-Related Molecular Network, 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.
| | - Tinghong Ye
- Sichuan University-University of Oxford Huaxi Joint Centre for Gastrointestinal Cancer, Department of Gastroenterology and Hepatology, Frontiers Science Center for Disease-Related Molecular Network, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China.
| |
Collapse
|
50
|
Zhou X, Wang N, Zhang Y, Yu H, Wu Q. KAT2B is an immune infiltration-associated biomarker predicting prognosis and response to immunotherapy in non-small cell lung cancer. Invest New Drugs 2021; 40:43-57. [PMID: 34499335 DOI: 10.1007/s10637-021-01159-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Accepted: 08/03/2021] [Indexed: 12/24/2022]
Abstract
BACKGROUND Over the past few years, dramatic breakthroughs in the field of tumor immunotherapy with immune checkpoint inhibitors (ICIs) have made a therapeutic revolution for non-small cell lung cancer (NSCLC). While only some patients present a favorable response to this treatment. It is urgent to explore the potential molecular mechanisms underlying the regulation of tumor immune microenvironment in the process of immunotherapy. Lysine acetyltransferase 2B (KAT2B) plays a crucial role in the regulation of gene expression at the post-transcriptional level by acetylation, and is associated with many types of cancer. METHODS RNA-sequencing data, genetic mutation data, and corresponding clinical information were extracted from The Cancer Genome Atlas (TCGA) and Gene Expression Omnibus (GEO) databases, then subjected to immune characteristics, gene expression, survival, genetic alteration, enrichment analyses. RESULTS KAT2B expression correlated positively with infiltrating levels of multiple immune cells and mRNA expression levels of immune checkpoint genes in NSCLC. Furthermore, KAT2B expression was downregulated in tumor tissues, and low KAT2B expression was associated with unsatisfactory efficacy of immune checkpoint blockade (ICB) and poor prognosis of patients with lung adenocarcinoma. Moreover, there were higher somatic genes mutation frequency in patients with low expression of KAT2B. Finally, functional enrichment analysis suggested that KAT2B was mainly linked to the regulation of immune cells and interferon - gamma (IFN-γ) mediated signaling pathways, response to IFN-γ, antigen processing and presentation. CONCLUSION This is the first comprehensive study to disclose that KAT2B is correlated with immune infiltrates and may serve as a novel biomarker predicting prognosis and response to immunotherapy in NSCLC.
Collapse
Affiliation(s)
- Xue Zhou
- Haihe Clinical College of Tianjin Medical University, Tianjin, 300350, China.,Department of Nephrology, Tianjin Haihe Hospital, Tianjin, 300350, China
| | - Ning Wang
- Tianjin Third Central Hospital, Tianjin, 300170, China
| | - Yuefeng Zhang
- Department of Nephrology, Tianjin Haihe Hospital, Tianjin, 300350, China
| | - Hongzhi Yu
- Department of Respiratory Medicine, Tianjin Haihe Hospital, Tianjin, 300350, China
| | - Qi Wu
- Haihe Clinical College of Tianjin Medical University, Tianjin, 300350, China. .,Tianjin Institute of Respiratory Diseases, Tianjin, 300350, China. .,Department of Respiratory Medicine, Tianjin Medical University General Hospital, Tianjin, 300052, China.
| |
Collapse
|