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Zhao PW, Cui JX, Wang XM. Upregulation of p300 in paclitaxel-resistant TNBC: implications for cell proliferation via the PCK1/AMPK axis. THE PHARMACOGENOMICS JOURNAL 2024; 24:5. [PMID: 38378770 DOI: 10.1038/s41397-024-00324-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Revised: 01/18/2024] [Accepted: 01/24/2024] [Indexed: 02/22/2024]
Abstract
OBJECTIVE To explore the role of p300 in the context of paclitaxel (PTX) resistance in triple-negative breast cancer (TNBC) cells, focusing on its interaction with the phosphoenolpyruvate carboxykinase 1 (PCK1)/adenosine monophosphate-activated protein kinase (AMPK) pathway. METHODS The expression of p300 and PCK1 at the messenger ribonucleic acid (mRNA) level was detected using a quantitative polymerase chain reaction. The GeneCards and GEPIA databases were used to investigate the relationship between p300 and PCK1. The MDA-MB-231/PTX cell line, known for its PTX resistance, was chosen to understand the specific role of p300 in such cells. The Lipofectamine™ 3000 reagent was used to transfer the p300 small interfering RNA and the overexpression of PCK1 plasmid into MDA-MB-231/PTX. The expression levels of p300, PCK1, 5'AMPK and phosphorylated AMPK (p-AMPK) were determined using the western blot test. RESULTS In TNBC cancer tissue, the expression of p300 was increased compared with TNBC paracancerous tissue (P < 0.05). In the MDA-MB-231 cell line of TNBC, the expression of p300 was lower than in the PTX-resistant TNBC cells (MDA-MB-231/PTX) (P < 0.05). The PCK1 expression was decreased in the TNBC cancer tissue compared with TNBC paracancerous tissue, and the PCK1 expression was reduced in MDA-MB-231/PTX than in MDA-MB-231 (P < 0.05) indicating that PCK1 was involved in the resistance function. Additionally, p-AMPK was decreased in MDA-MB-231/PTX compared with MDA-MB-231 (P < 0.05). The adenosine triphosphate (ATP) level was also detected and was significantly lower in MDA-MB-231/PTX than in MDA-MB-231 (P < 0.05). Additionally, cell proliferation increased significantly in MDA-MB-231/PTX at 48 and 72 h (P < 0.05) suggesting that MDA-MB-231/PTX cells obtained the resistance function which was associated with AMPK and ATP level. When p300 was inhibited, p-AMPK and ATP levels elevated in MDA-MB-231/PTX (P < 0.05). When PCK1 was suppressed, the ATP consumption rate decreased, and cell proliferation increased (P < 0.05). However, there were no changes in p300. CONCLUSIONS In MDA-MB-231/PTX, p300 can inhibit p-AMPK and ATP levels by inhibiting PCK1 expression. Our findings suggest that targeting p300 could modulate the PCK1/AMPK axis, offering a potential therapeutic avenue for overcoming PTX resistance in TNBC.
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Affiliation(s)
- Peng-Wei Zhao
- Laboratory of Microbiology and Immunology, School of Basic Medical Science, Inner Mongolia Medical University, No.5 Xinhua Street, Huimin District, Hohhot, 010059, China
| | - Jia-Xian Cui
- Laboratory of Microbiology and Immunology, School of Basic Medical Science, Inner Mongolia Medical University, No.5 Xinhua Street, Huimin District, Hohhot, 010059, China
| | - Xiu-Mei Wang
- Medical Oncology, Affiliated Cancer Hospital of Inner Mongolia Medical University, No. 42 Zhaowuda Road, Saihan District, Hohhot, 010020, Inner Mongolia, China.
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2
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Variations of Histone Acetyltransferase 300 in Patients with Human Papillomavirus Type 6-Associated Anogenital Warts. MEDICAL LABORATORY JOURNAL 2020. [DOI: 10.52547/mlj.14.6.10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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3
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Abounouh K, Aitraise I, Benabou A, Boussakri I, Doumir MA, El Boussairi C, El Idrissi S, El Mahdaoui C, Qouar DE, Ennahal A, Fathi S, Hafidi M, Lachker L, Ratib C, Tanouti IA, Maaroufi A, Benjelloun S, Guessous F, Pineau P, Ezzikouri S. Virus-associated human cancers in Moroccan population: From epidemiology to prospective research. INFECTION GENETICS AND EVOLUTION 2019; 75:103990. [PMID: 31386915 DOI: 10.1016/j.meegid.2019.103990] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2019] [Revised: 07/25/2019] [Accepted: 08/02/2019] [Indexed: 12/24/2022]
Abstract
Eight human viruses have been classified by the International Agency for Research on Cancer as carcinogenic or probably carcinogenic for humans. Infection with high risk human papillomaviruses, hepatitis B and C viruses, Epstein-Barr virus (EBV), human T-Cell Lymphotropic Virus Type 1 (HTLV-1), Human herpesvirus 8 (HHV-8), Merkel cell polyomavirus and human immunodeficiency virus-1 (HIV1) alone or in combination with other agents are the main etiologic factors of many cancers. This review highlights some aspects of virus-associated human cancers, potentially responsible for >14,000 malignancies per year in Morocco. Given that not all individuals infected with these viruses develop cancer, somatic alterations, genetic predisposition, and lifestyle or environmental factors obviously play potentializing roles modulating viral activity. These viral, host genetic signatures and lifestyle interactions may represent a reservoir of biomarkers for early detection, prevention of cancer and rationale-based therapy.
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Affiliation(s)
- Karima Abounouh
- Virology Unit, Viral Hepatitis Laboratory, Institut Pasteur du Maroc, Casablanca, Morocco; Mohammed VI University of Health Sciences, Casablanca, Morocco
| | - Imane Aitraise
- Mohammed VI University of Health Sciences, Casablanca, Morocco
| | - Anas Benabou
- Mohammed VI University of Health Sciences, Casablanca, Morocco
| | | | | | | | | | | | - Dalal El Qouar
- Mohammed VI University of Health Sciences, Casablanca, Morocco
| | - Afaf Ennahal
- Mohammed VI University of Health Sciences, Casablanca, Morocco
| | - Sofia Fathi
- Mohammed VI University of Health Sciences, Casablanca, Morocco
| | - Maria Hafidi
- Mohammed VI University of Health Sciences, Casablanca, Morocco
| | - Lamyae Lachker
- Mohammed VI University of Health Sciences, Casablanca, Morocco
| | - Chorouk Ratib
- Mohammed VI University of Health Sciences, Casablanca, Morocco
| | | | - Abderrahmane Maaroufi
- Virology Unit, Viral Hepatitis Laboratory, Institut Pasteur du Maroc, Casablanca, Morocco
| | - Soumaya Benjelloun
- Virology Unit, Viral Hepatitis Laboratory, Institut Pasteur du Maroc, Casablanca, Morocco
| | - Fadila Guessous
- Mohammed VI University of Health Sciences, Casablanca, Morocco
| | - Pascal Pineau
- Unité Organisation Nucléaire et Oncogenèse, INSERM U993, Institut Pasteur, Paris, France
| | - Sayeh Ezzikouri
- Virology Unit, Viral Hepatitis Laboratory, Institut Pasteur du Maroc, Casablanca, Morocco.
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Brasacchio D, Busuttil RA, Noori T, Johnstone RW, Boussioutas A, Trapani JA. Down-regulation of a pro-apoptotic pathway regulated by PCAF/ADA3 in early stage gastric cancer. Cell Death Dis 2018; 9:442. [PMID: 29670108 PMCID: PMC5906598 DOI: 10.1038/s41419-018-0470-8] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2017] [Revised: 01/10/2018] [Accepted: 03/06/2018] [Indexed: 12/28/2022]
Abstract
The loss of p300/CBP-associated protein (PCAF) expression is associated with poor clinical outcome in gastric cancer, and a potential bio-marker for invasive and aggressive tumors. However, the mechanism linking loss of PCAF to the onset of gastric cancer has not been identified. Given that PCAF and its binding partner transcriptional adaptor protein 3 (ADA3) were recently shown to regulate the intrinsic (mitochondrial) pathway to apoptosis via epigenetic regulation of phosphofurin acidic cluster sorting proteins 1 and 2 (PACS1, PACS2), we analyzed PCAF, ADA3, and PACS1/2 expression in 99 patient-matched surgical samples ranging from normal gastric mucosa, through pre-malignant chronic gastritis and intestinal metaplasia to stage I–III invasive cancers. PCAF mRNA levels were not reduced in either pre-malignant state but were significantly down-regulated in all stages of gastric cancer, commencing at AJCC stage I (p < 0.05), thus linking reduced PCAF expression with early malignant change. Furthermore, patients with combined reduction of PCAF and PACS1 had significantly poorer overall survival (p = 0.0257), confirmed in an independent dataset of 359 patients (p = 5.8 × 10e-6). At the protein level, PCAF, ADA3, and PACS1 expression were all significantly down-regulated in intestinal-type gastric cancer, and correlated with reduced progression free survival. We conclude that a pro-apoptotic mechanism centered on the intrinsic (mitochondrial) pathway and regulated by PCAF/ADA3 can influence the progression from premalignant to malignant change, and thus act as a tumor suppression mechanism in gastric cancer.
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Affiliation(s)
- Daniella Brasacchio
- Sir Peter MacCallum Department of Oncology, The University of Melbourne, Parkville, VIC, Australia.,Cancer Immunology Program, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia.,School of Clinical Sciences, Monash University, Clayton, VIC, Australia
| | - Rita A Busuttil
- Sir Peter MacCallum Department of Oncology, The University of Melbourne, Parkville, VIC, Australia.,Upper Gastrointestinal Translational Research Laboratory, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia.,Department of Medicine, Royal Melbourne Hospital, The University of Melbourne, Parkville, VIC, Australia
| | - Tahereh Noori
- Sir Peter MacCallum Department of Oncology, The University of Melbourne, Parkville, VIC, Australia.,Cancer Immunology Program, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia
| | - Ricky W Johnstone
- Sir Peter MacCallum Department of Oncology, The University of Melbourne, Parkville, VIC, Australia.,Cancer Therapeutics Program, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia
| | - Alex Boussioutas
- Sir Peter MacCallum Department of Oncology, The University of Melbourne, Parkville, VIC, Australia.,Upper Gastrointestinal Translational Research Laboratory, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia.,Department of Medicine, Royal Melbourne Hospital, The University of Melbourne, Parkville, VIC, Australia
| | - Joseph A Trapani
- Sir Peter MacCallum Department of Oncology, The University of Melbourne, Parkville, VIC, Australia. .,Cancer Immunology Program, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia.
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Choi YY, Lee SY, Lee WK, Jeon HS, Lee EB, Lee HC, Choi JE, Kang HG, Lee EJ, Bae EY, Yoo SS, Lee J, Cha SI, Kim CH, Kim IS, Lee MH, Kim YT, Jheon S, Park JY. RACK1 is a candidate gene associated with the prognosis of patients with early stage non-small cell lung cancer. Oncotarget 2015; 6:4451-66. [PMID: 25686824 PMCID: PMC4414203 DOI: 10.18632/oncotarget.2865] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2014] [Accepted: 12/07/2014] [Indexed: 01/10/2023] Open
Abstract
Background This study was conducted to identify genetic polymorphisms associated with the prognosis of patients with early stage NSCLC. Materials and Methods We genotyped 1,969 potentially functional single nucleotide polymorphisms (SNPs) of 1,151 genes involved in carcinogenesis in 166 NSCLC patients who underwent curative surgery, using the Affymetrix custom-made GeneChip. A replication study was performed in an independent cohort of 626 patients. Results Fifty six SNPs which were associated with both overall survival (OS) and disease-free survival (DFS) with log-rank P values < 0.05 in discovery set were selected for validation. Among those, five SNPs (RACK1 rs1279736C>A and rs3756585T>G, C3 rs2287845T>C, PCAF rs17006625A>G, and PCM1 rs17691523C>G) were found to be significantly associated with survival in the same direction as the discovery set. In combined analysis, the rs1279736C>A and rs3756585T>G were most significantly associated with OS and DFS in multivariate analysis (P for OS = 4 × 10−5 and 7 × 10−5, respectively; and P for DFS = 0.003, both; under codominant model). In vitro promoter assay and electrophoretic mobility shift assay revealed that the rs3756585 T-to-G change increased promoter activity and transcription factor binding of RACK1. Conclusions We identified five SNPs, especially RACK1 rs3756585T>G, as markers for prognosis of patients with surgically resected NSCLC.
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Affiliation(s)
- Yi-Young Choi
- Departments of Biochemistry and Cell Biology, Kyungpook National University, Daegu, Republic of Korea
| | - Shin Yup Lee
- Internal Medicine, School of Medicine, Kyungpook National University, Daegu, Republic of Korea.,Lung Cancer Center, Kyungpook National University Medical Center, Daegu, Republic of Korea
| | - Won Kee Lee
- Biostatistics Center, School of Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - Hyo-Sung Jeon
- Departments of Biochemistry and Cell Biology, Kyungpook National University, Daegu, Republic of Korea.,Lung Cancer Center, Kyungpook National University Medical Center, Daegu, Republic of Korea
| | - Eung Bae Lee
- Lung Cancer Center, Kyungpook National University Medical Center, Daegu, Republic of Korea.,Department of Thoracic Surgery, School of Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - Hyun Cheol Lee
- Diagnosis and Prediction Biotechnology, School of Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - Jin Eun Choi
- Departments of Biochemistry and Cell Biology, Kyungpook National University, Daegu, Republic of Korea.,Lung Cancer Center, Kyungpook National University Medical Center, Daegu, Republic of Korea
| | - Hyo-Gyoung Kang
- Departments of Biochemistry and Cell Biology, Kyungpook National University, Daegu, Republic of Korea
| | - Eun Jin Lee
- Lung Cancer Center, Kyungpook National University Medical Center, Daegu, Republic of Korea
| | - Eun Young Bae
- Departments of Biochemistry and Cell Biology, Kyungpook National University, Daegu, Republic of Korea
| | - Seung Soo Yoo
- Internal Medicine, School of Medicine, Kyungpook National University, Daegu, Republic of Korea.,Lung Cancer Center, Kyungpook National University Medical Center, Daegu, Republic of Korea
| | - Jaehee Lee
- Internal Medicine, School of Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - Seung Ick Cha
- Internal Medicine, School of Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - Chang Ho Kim
- Internal Medicine, School of Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - In-San Kim
- Departments of Biochemistry and Cell Biology, Kyungpook National University, Daegu, Republic of Korea
| | - Myung Hoon Lee
- Diagnosis and Prediction Biotechnology, School of Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - Young Tae Kim
- Department of Thoracic and Cardiovascular Surgery, Seoul National University School of Medicine, Seoul, Republic of Korea
| | - Sanghoon Jheon
- Department of Thoracic and Cardiovascular Surgery, Seoul National University School of Medicine, Seoul, Republic of Korea
| | - Jae Yong Park
- Departments of Biochemistry and Cell Biology, Kyungpook National University, Daegu, Republic of Korea.,Internal Medicine, School of Medicine, Kyungpook National University, Daegu, Republic of Korea.,Lung Cancer Center, Kyungpook National University Medical Center, Daegu, Republic of Korea
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Shen J, Zhang M, Sun M, Tang K, Zhou B. The relationship of miR-146a gene polymorphism with carotid atherosclerosis in Chinese patients with type 2 diabetes mellitus. Thromb Res 2015; 136:1149-55. [DOI: 10.1016/j.thromres.2015.10.013] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2015] [Revised: 09/20/2015] [Accepted: 10/07/2015] [Indexed: 12/12/2022]
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7
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Liu K, Zhang Q, Lan H, Wang L, Mou P, Shao W, Liu D, Yang W, Lin Z, Lin Q, Ji T. GCN5 Potentiates Glioma Proliferation and Invasion via STAT3 and AKT Signaling Pathways. Int J Mol Sci 2015; 16:21897-910. [PMID: 26378521 PMCID: PMC4613287 DOI: 10.3390/ijms160921897] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2015] [Revised: 08/27/2015] [Accepted: 08/31/2015] [Indexed: 02/07/2023] Open
Abstract
The general control of nucleotide synthesis 5 (GCN5), which is one kind of lysine acetyltransferases, regulates a number of cellular processes, such as cell proliferation, differentiation, cell cycle and DNA damage repair. However, its biological role in human glioma development remains elusive. In the present study, we firstly reported that GCN5 was frequently overexpressed in human glioma tissues and GCN5 was positively correlated with proliferation of cell nuclear antigen PCNA and matrix metallopeptidase MMP9. Meanwhile, down-regulation of GCN5 by siRNA interfering inhibited glioma cell proliferation and invasion. In addition, GCN5 knockdown reduced expression of p-STAT3, p-AKT, PCNA and MMP9 and increased the expression of p21 in glioma cells. In conclusion, GCN5 exhibited critical roles in glioma development by regulating cell proliferation and invasion, which suggested that GCN5 might be a potential molecular target for glioma treatment.
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Affiliation(s)
- Kun Liu
- Department of Pathology, Affiliated Chenggong Hospital, Xiamen University, Xiamen 361000, China.
- Chinese People's Liberation Army No. 174 Clinical College, Anhui Medical University, Xiamen 361000, China.
| | - Qing Zhang
- Department of Pathology, Affiliated Chenggong Hospital, Xiamen University, Xiamen 361000, China.
- Chinese People's Liberation Army No. 174 Clinical College, Anhui Medical University, Xiamen 361000, China.
| | - Haitao Lan
- Department of Oncology, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, Chengdu 610072, China.
| | - Liping Wang
- Chinese People's Liberation Army No. 174 Clinical College, Anhui Medical University, Xiamen 361000, China.
| | - Pengfei Mou
- Department of Pathology, Affiliated Chenggong Hospital, Xiamen University, Xiamen 361000, China.
- Chinese People's Liberation Army No. 174 Clinical College, Anhui Medical University, Xiamen 361000, China.
| | - Wei Shao
- Department of Pathology, Affiliated Chenggong Hospital, Xiamen University, Xiamen 361000, China.
- Chinese People's Liberation Army No. 174 Clinical College, Anhui Medical University, Xiamen 361000, China.
| | - Dan Liu
- Department of Pathology, Affiliated Chenggong Hospital, Xiamen University, Xiamen 361000, China.
- Chinese People's Liberation Army No. 174 Clinical College, Anhui Medical University, Xiamen 361000, China.
| | - Wensheng Yang
- Department of Pathology, Affiliated Chenggong Hospital, Xiamen University, Xiamen 361000, China.
- Chinese People's Liberation Army No. 174 Clinical College, Anhui Medical University, Xiamen 361000, China.
| | - Zhen Lin
- Department of Pathology, Affiliated Chenggong Hospital, Xiamen University, Xiamen 361000, China.
- Chinese People's Liberation Army No. 174 Clinical College, Anhui Medical University, Xiamen 361000, China.
| | - Qingyuan Lin
- Department of Pathology, Affiliated Chenggong Hospital, Xiamen University, Xiamen 361000, China.
- Chinese People's Liberation Army No. 174 Clinical College, Anhui Medical University, Xiamen 361000, China.
| | - Tianhai Ji
- Department of Pathology, Affiliated Chenggong Hospital, Xiamen University, Xiamen 361000, China.
- Chinese People's Liberation Army No. 174 Clinical College, Anhui Medical University, Xiamen 361000, China.
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Meng L, Jia RX, Sun YY, Wang ZY, Wan YJ, Zhang YL, Zhong BS, Wang F. Growth regulation, imprinting, and epigenetic transcription-related gene expression differs in lung of deceased transgenic cloned and normal goats. Theriogenology 2014; 81:459-66. [DOI: 10.1016/j.theriogenology.2013.10.023] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2013] [Revised: 10/20/2013] [Accepted: 10/22/2013] [Indexed: 12/11/2022]
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9
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A functional genomics screen identifies PCAF and ADA3 as regulators of human granzyme B-mediated apoptosis and Bid cleavage. Cell Death Differ 2014; 21:748-60. [PMID: 24464226 DOI: 10.1038/cdd.2013.203] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2013] [Revised: 12/15/2013] [Accepted: 12/16/2013] [Indexed: 12/24/2022] Open
Abstract
The human lymphocyte toxins granzyme B (hGrzB) and perforin cooperatively induce apoptosis of virus-infected or transformed cells: perforin pores enable entry of the serine protease hGrzB into the cytosol, where it processes Bid to selectively activate the intrinsic apoptosis pathway. Truncated Bid (tBid) induces Bax/Bak-dependent mitochondrial outer membrane permeability and the release of cytochrome c and Smac/Diablo. To identify cellular proteins that regulate perforin/hGrzB-mediated Bid cleavage and subsequent apoptosis, we performed a gene-knockdown (KD) screen using a lentiviral pool of short hairpin RNAs embedded within a miR30 backbone (shRNAmiR). We transduced HeLa cells with a lentiviral pool expressing shRNAmiRs that target 1213 genes known to be involved in cell death signaling and selected cells with acquired resistance to perforin/hGrzB-mediated apoptosis. Twenty-two shRNAmiRs were identified in the positive-selection screen including two, PCAF and ADA3, whose gene products are known to reside in the same epigenetic regulatory complexes. Small interfering (si)RNA-mediated gene-KD of PCAF or ADA3 also conferred resistance to perforin/hGrzB-mediated apoptosis providing independent validation of the screen results. Mechanistically, PCAF and ADA3 exerted their pro-apoptotic effect upstream of mitochondrial membrane permeabilization, as indicated by reduced cytochrome c release in PCAF-KD cells exposed to perforin/hGrzB. While overall levels of Bid were unaltered, perforin/hGrzB-mediated cleavage of Bid was reduced in PCAF-KD or ADA3-KD cells. We discovered that PCAF-KD or ADA3-KD resulted in reduced expression of PACS2, a protein implicated in Bid trafficking to mitochondria and importantly, targeted PACS2-KD phenocopied the effect of PCAF-KD or ADA3-KD. We conclude that PCAF and ADA3 regulate Bid processing via PACS2, to modulate the mitochondrial cell death pathway in response to hGrzB.
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Chen L, Wei T, Si X, Wang Q, Li Y, Leng Y, Deng A, Chen J, Wang G, Zhu S, Kang J. Lysine acetyltransferase GCN5 potentiates the growth of non-small cell lung cancer via promotion of E2F1, cyclin D1, and cyclin E1 expression. J Biol Chem 2013; 288:14510-14521. [PMID: 23543735 DOI: 10.1074/jbc.m113.458737] [Citation(s) in RCA: 103] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
The lysine acetyltransferases play crucial but complex roles in cancer development. GCN5 is a lysine acetyltransferase that generally regulates gene expression, but its role in cancer development remains largely unknown. In this study, we report that GCN5 is highly expressed in non-small cell lung cancer tissues and that its expression correlates with tumor size. We found that the expression of GCN5 promotes cell growth and the G1/S phase transition in multiple lung cancer cell lines. Further study revealed that GCN5 regulates the expression of E2F1, cyclin D1, and cyclin E1. Our reporter assays indicated that the expression of GCN5 enhances the activities of the E2F1, cyclin D1, and cyclin E1 promoters. ChIP experiments suggested that GCN5 binds directly to these promoters and increases the extent of histone acetylation within these regions. Mechanistic studies suggested that GCN5 interacts with E2F1 and is recruited by E2F1 to the E2F1, cyclin D1, and cyclin E1 promoters. The function of GCN5 in lung cancer cells is abrogated by the knockdown of E2F1. Finally, we confirmed that GCN5 regulates the expression of E2F1, cyclin D1, and cyclin E1 and potentiates lung cancer cell growth in a mouse tumor model. Taken together, our results demonstrate that GCN5 specifically potentiates lung cancer growth by directly promoting the expression of E2F1, cyclin D1, and cyclin E1 in an E2F1-dependent manner. Our study identifies a specific and novel function of GCN5 in lung cancer development and suggests that the GCN5-E2F1 interaction represents a potential target for lung cancer treatment.
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Affiliation(s)
- Long Chen
- Clinical and Translational Research Center of Shanghai First Maternity and Infant Health Hospital, Shanghai Key Laboratory of Signaling and Disease Research at School of Life Science and Technology, Tongji University, No. 1239 Si-ping Road, Shanghai 200092
| | - Tingyi Wei
- Clinical and Translational Research Center of Shanghai First Maternity and Infant Health Hospital, Shanghai Key Laboratory of Signaling and Disease Research at School of Life Science and Technology, Tongji University, No. 1239 Si-ping Road, Shanghai 200092
| | - Xiaoxing Si
- Clinical and Translational Research Center of Shanghai First Maternity and Infant Health Hospital, Shanghai Key Laboratory of Signaling and Disease Research at School of Life Science and Technology, Tongji University, No. 1239 Si-ping Road, Shanghai 200092
| | - Qianqian Wang
- Department of Hematology and Laboratory Medicine, Changhai Hospital, Second Military Medical University, 168 Changhai Road, Shanghai 200433, China
| | - Yan Li
- Clinical and Translational Research Center of Shanghai First Maternity and Infant Health Hospital, Shanghai Key Laboratory of Signaling and Disease Research at School of Life Science and Technology, Tongji University, No. 1239 Si-ping Road, Shanghai 200092
| | - Ye Leng
- Clinical and Translational Research Center of Shanghai First Maternity and Infant Health Hospital, Shanghai Key Laboratory of Signaling and Disease Research at School of Life Science and Technology, Tongji University, No. 1239 Si-ping Road, Shanghai 200092
| | - Anmei Deng
- Department of Hematology and Laboratory Medicine, Changhai Hospital, Second Military Medical University, 168 Changhai Road, Shanghai 200433, China
| | - Jie Chen
- Department of Hematology and Laboratory Medicine, Changhai Hospital, Second Military Medical University, 168 Changhai Road, Shanghai 200433, China
| | - Guiying Wang
- Clinical and Translational Research Center of Shanghai First Maternity and Infant Health Hospital, Shanghai Key Laboratory of Signaling and Disease Research at School of Life Science and Technology, Tongji University, No. 1239 Si-ping Road, Shanghai 200092
| | - Songcheng Zhu
- Clinical and Translational Research Center of Shanghai First Maternity and Infant Health Hospital, Shanghai Key Laboratory of Signaling and Disease Research at School of Life Science and Technology, Tongji University, No. 1239 Si-ping Road, Shanghai 200092.
| | - Jiuhong Kang
- Clinical and Translational Research Center of Shanghai First Maternity and Infant Health Hospital, Shanghai Key Laboratory of Signaling and Disease Research at School of Life Science and Technology, Tongji University, No. 1239 Si-ping Road, Shanghai 200092.
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