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Liu S, Dai W, Jin B, Jiang F, Huang H, Hou W, Lan J, Jin Y, Peng W, Pan J. Effects of super-enhancers in cancer metastasis: mechanisms and therapeutic targets. Mol Cancer 2024; 23:122. [PMID: 38844984 DOI: 10.1186/s12943-024-02033-8] [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: 04/19/2024] [Accepted: 05/28/2024] [Indexed: 06/09/2024] Open
Abstract
Metastasis remains the principal cause of cancer-related lethality despite advancements in cancer treatment. Dysfunctional epigenetic alterations are crucial in the metastatic cascade. Among these, super-enhancers (SEs), emerging as new epigenetic regulators, consist of large clusters of regulatory elements that drive the high-level expression of genes essential for the oncogenic process, upon which cancer cells develop a profound dependency. These SE-driven oncogenes play an important role in regulating various facets of metastasis, including the promotion of tumor proliferation in primary and distal metastatic organs, facilitating cellular migration and invasion into the vasculature, triggering epithelial-mesenchymal transition, enhancing cancer stem cell-like properties, circumventing immune detection, and adapting to the heterogeneity of metastatic niches. This heavy reliance on SE-mediated transcription delineates a vulnerable target for therapeutic intervention in cancer cells. In this article, we review current insights into the characteristics, identification methodologies, formation, and activation mechanisms of SEs. We also elaborate the oncogenic roles and regulatory functions of SEs in the context of cancer metastasis. Ultimately, we discuss the potential of SEs as novel therapeutic targets and their implications in clinical oncology, offering insights into future directions for innovative cancer treatment strategies.
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Affiliation(s)
- Shenglan Liu
- Key Laboratory of Prevention and Treatment of Cardiovascular and Cerebrovascular Diseases, Ministry of Education, Jiangxi Provincal Key Laboratory of Tissue Engineering, School of Pharmacy, Gannan Medical University, Ganzhou, 314000, China
| | - Wei Dai
- Key Laboratory of Prevention and Treatment of Cardiovascular and Cerebrovascular Diseases, Ministry of Education, Jiangxi Provincal Key Laboratory of Tissue Engineering, School of Pharmacy, Gannan Medical University, Ganzhou, 314000, China
| | - Bei Jin
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, 510060, China
| | - Feng Jiang
- Key Laboratory of Prevention and Treatment of Cardiovascular and Cerebrovascular Diseases, Ministry of Education, Jiangxi Provincal Key Laboratory of Tissue Engineering, School of Pharmacy, Gannan Medical University, Ganzhou, 314000, China
| | - Hao Huang
- Key Laboratory of Prevention and Treatment of Cardiovascular and Cerebrovascular Diseases, Ministry of Education, Jiangxi Provincal Key Laboratory of Tissue Engineering, School of Pharmacy, Gannan Medical University, Ganzhou, 314000, China
| | - Wen Hou
- Key Laboratory of Prevention and Treatment of Cardiovascular and Cerebrovascular Diseases, Ministry of Education, Jiangxi Provincal Key Laboratory of Tissue Engineering, School of Pharmacy, Gannan Medical University, Ganzhou, 314000, China
| | - Jinxia Lan
- College of Public Health and Health Management, Gannan Medical University, Ganzhou, 341000, China
| | - Yanli Jin
- College of Pharmacy, Jinan University Institute of Tumor Pharmacology, Jinan University, Guangzhou, 510632, China
| | - Weijie Peng
- Key Laboratory of Prevention and Treatment of Cardiovascular and Cerebrovascular Diseases, Ministry of Education, Jiangxi Provincal Key Laboratory of Tissue Engineering, School of Pharmacy, Gannan Medical University, Ganzhou, 314000, China.
| | - Jingxuan Pan
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, 510060, China.
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2
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Wang L, Liu X, Han Y, Tsai HI, Dan Z, Yang P, Xu Z, Shu F, He C, Eriksson JE, Zhu H, Chen H, Cheng F. TRAF6 enhances PD-L1 expression through YAP1-TFCP2 signaling in melanoma. Cancer Lett 2024; 590:216861. [PMID: 38583649 DOI: 10.1016/j.canlet.2024.216861] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Revised: 03/30/2024] [Accepted: 04/02/2024] [Indexed: 04/09/2024]
Abstract
Immunotherapy represented by programmed cell death protein 1 (PD-1)/programmed death ligand 1 (PD-L1) monoclonal antibodies has led tumor treatment into a new era. However, the low overall response rate and high incidence of drug resistance largely damage the clinical benefits of existing immune checkpoint therapies. Recent studies correlate the response to PD-1/PD-L1 blockade with PD-L1 expression levels in tumor cells. Hence, identifying molecular targets and pathways controlling PD-L1 protein expression and stability in tumor cells is a major priority. In this study, we performed a Stress and Proteostasis CRISPR interference screening to identify PD-L1 positive modulators. Here, we identified TRAF6 as a critical regulator of PD-L1 in melanoma cells. As a non-conventional E3 ubiquitin ligase, TRAF6 is inclined to catalyze the synthesis and linkage of lysine-63 (K63) ubiquitin which is related to the stabilization of substrate proteins. Our results showed that suppression of TRAF6 expression down-regulates PD-L1 expression on the membrane surface of melanoma cells. We then used in vitro and in vivo assays to investigate the biological function and mechanism of TRAF6 and its downstream YAP1/TFCP2 signaling in melanoma. TRAF6 stabilizes YAP1 by K63 poly-ubiquitination modification, subsequently promoting the formation of YAP1/TFCP2 transcriptional complex and PD-L1 transcription. Inhibition of TRAF6 by Bortezomib enhanced cytolytic activity of CD8+ T cells by reduction of endogenous PD-L1. Notably, Bortezomib enhances anti-tumor immunity to an extent comparable to anti-PD-1 therapies with no obvious toxicity. Our findings reveal the potential of inhibiting TRAF6 to stimulate internal anti-tumor immunological effect for TRAF6-PD-L1 overexpressing cancers.
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Affiliation(s)
- Linglu Wang
- School of Pharmaceutical Sciences (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Shenzhen, China
| | - Xiaoyan Liu
- School of Pharmaceutical Sciences (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Shenzhen, China
| | - Yuhang Han
- School of Pharmaceutical Sciences (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Shenzhen, China
| | - Hsiang-I Tsai
- Institute of Medical Imaging and Artificial Intelligence, Jiangsu University, Zhenjiang, China
| | - Zilin Dan
- School of Pharmaceutical Sciences (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Shenzhen, China
| | - Peiru Yang
- Turku Bioscience Centre, University of Turku and Åbo Akademi University, Turku, Finland; Cell Biology, Faculty of Science and Engineering, Åbo Akademi University, Turku, Finland
| | - Zhanxue Xu
- School of Pharmaceutical Sciences (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Shenzhen, China
| | - Fan Shu
- School of Pharmaceutical Sciences (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Shenzhen, China
| | - Chao He
- School of Pharmaceutical Sciences (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Shenzhen, China
| | - John E Eriksson
- Turku Bioscience Centre, University of Turku and Åbo Akademi University, Turku, Finland; Cell Biology, Faculty of Science and Engineering, Åbo Akademi University, Turku, Finland
| | - Haitao Zhu
- Institute of Medical Imaging and Artificial Intelligence, Jiangsu University, Zhenjiang, China.
| | - Hongbo Chen
- School of Pharmaceutical Sciences (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Shenzhen, China.
| | - Fang Cheng
- School of Pharmaceutical Sciences (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Shenzhen, China.
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3
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Kahkesh S, Khoshnazar SM, Gholinezhad Y, Esmailzadeh S, Hosseini SA, Alimohammadi M, Mafi A. The potential role of circular RNAs -regulated PI3K signaling in non-small cell lung cancer: Molecular insights and clinical perspective. Pathol Res Pract 2024; 257:155316. [PMID: 38692125 DOI: 10.1016/j.prp.2024.155316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Revised: 04/11/2024] [Accepted: 04/16/2024] [Indexed: 05/03/2024]
Abstract
Non-small cell lung cancer (NSCLC), accounting for more than 80% of all cases, is the predominant form of lung cancer and the leading cause of cancer-related deaths worldwide. Significant progress has been made in diagnostic techniques, surgical interventions, chemotherapy protocols, and targeted therapies at the molecular level, leading to enhanced treatment outcomes in patients with NSCLC. Extensive evidence supports the use of circular RNAs (circRNAs), a specific category of naturally occurring non-coding small RNAs (ncRNAs), for the diagnosis, monitoring of treatment efficacy, and assessment of survival in NSCLC. CircRNAs have been identified to play significant roles in various aspects of cancer formation, either as tumor suppressors or tumor promoters, contributing to cancer development through several signaling pathways, including the phosphoinositide 3-kinases (PI3Ks) pathway. This pathway is well-established because of its regulatory role in essential cellular processes. CircRNAs regulate the PI3K/AKT pathway by targeting diverse cellular elements. This review aims to provide insight into the involvement of several circRNAs linked to the PI3K/AKT pathway in NSCLC.
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Affiliation(s)
- Samaneh Kahkesh
- Faculty of Science, Shahid Chamran University of Ahvaz, Ahvaz, Iran
| | - Seyedeh Mahdieh Khoshnazar
- Gastroenterology and Hepatology Research Center, Institute of Basic and Clinical Physiology Sciences, Kerman University of Medical Sciences, Kerman, Iran
| | - Yasaman Gholinezhad
- Department of Pharmacology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Shakiba Esmailzadeh
- School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Seyed Ali Hosseini
- Student Research Committee, Department of Immunology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mina Alimohammadi
- Department of Immunology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Alireza Mafi
- Nutrition and Food Security Research Center, Isfahan University of Medical Sciences, Isfahan, Iran; Department of Clinical Biochemistry, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, Iran.
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4
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Xie W, Wang J, Tian S, Zhao H, Cao L, Liang Z, Yang J, Zhao Y, Wang B, Jiang F, Ma J. RNF126-mediated ubiquitination of FSP1 affects its subcellular localization and ferroptosis. Oncogene 2024; 43:1463-1475. [PMID: 38514855 DOI: 10.1038/s41388-024-02949-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 01/11/2024] [Accepted: 01/12/2024] [Indexed: 03/23/2024]
Abstract
Medulloblastoma (MB) is a prevalent malignant brain tumor among children, which can be classified into four primary molecular subgroups. Group 3 MB (G3-MB) is known to be highly aggressive and associated with a poor prognosis, necessitating the development of novel and effective therapeutic interventions. Ferroptosis, a regulated form of cell death induced by lipid peroxidation, has been identified as a natural tumor suppression mechanism in various cancers. Nevertheless, the potential role of ferroptosis in the treatment of G3-MB remains unexplored. In this study, we demonstrate that RNF126 acts as an anti-ferroptotic gene by interacting with ferroptosis suppressor protein 1 (FSP1, also known as AIFM2) and ubiquitinating FSP1 at the 4KR-2 sites. Additionally, the deletion of RNF126 reduces the subcellular localization of FSP1 in the plasma membrane, resulting in an increase in the CoQ/CoQH2 ratio in G3-MB. The RNF126-FSP1-CoQ10 pathway plays a pivotal role in suppressing phospholipid peroxidation and ferroptosis both in vivo and in vitro. Clinically, RNF126 exhibited elevated expression in G3-MB and its overexpression was significantly associated with reduced patient survival. Our findings indicate that RNF126 regulates G3-MB sensitivity to ferroptosis by ubiquitinating FSP1, which provides new evidence for the potential G3-MB therapy.
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Affiliation(s)
- Wanqun Xie
- Department of Pediatric Neurosurgery, Xin Hua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jiajia Wang
- Department of Pediatric Neurosurgery, Xin Hua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Shuaiwei Tian
- Department of Pediatric Neurosurgery, Xin Hua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Heng Zhao
- Department of Pediatric Neurosurgery, Xin Hua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Liangliang Cao
- Department of Pediatric Neurosurgery, Xin Hua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Zhuangzhuang Liang
- Department of Pediatric Neurosurgery, Xin Hua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jian Yang
- Department of Pediatric Neurosurgery, Xin Hua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yang Zhao
- Department of Pediatric Neurosurgery, Xin Hua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Baocheng Wang
- Department of Pediatric Neurosurgery, Xin Hua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Feng Jiang
- Department of Pediatric Neurosurgery, Xin Hua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jie Ma
- Department of Pediatric Neurosurgery, Xin Hua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China.
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Matsui S, Ri C, Bolanos LC, Choi K, Shibamiya A, Ishii A, Takaishi K, Oshima-Hasegawa N, Tsukamoto S, Takeda Y, Mimura N, Yoshimi A, Yokote K, Starczynowski DT, Sakaida E, Muto T. Metabolic reprogramming regulated by TRAF6 contributes to the leukemia progression. Leukemia 2024; 38:1032-1045. [PMID: 38609495 DOI: 10.1038/s41375-024-02245-3] [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: 11/26/2022] [Revised: 03/31/2024] [Accepted: 04/04/2024] [Indexed: 04/14/2024]
Abstract
TNF receptor associated factor 6 (TRAF6) is an E3 ubiquitin ligase that has been implicated in myeloid malignancies. Although altered TRAF6 expression is observed in human acute myeloid leukemia (AML), its role in the AML pathogenesis remains elusive. In this study, we showed that the loss of TRAF6 in AML cells significantly impairs leukemic function in vitro and in vivo, indicating its functional importance in AML subsets. Loss of TRAF6 induces metabolic alterations, such as changes in glycolysis, TCA cycle, and nucleic acid metabolism as well as impaired mitochondrial membrane potential and respiratory capacity. In leukemic cells, TRAF6 expression shows a positive correlation with the expression of O-linked N-acetylglucosamine (O-GlcNAc) transferase (OGT), which catalyzes the addition of O-GlcNAc to target proteins involved in metabolic regulation. The restoration of growth capacity and metabolic activity in leukemic cells with TRAF6 loss, achieved through either forced expression of OGT or pharmacological inhibition of O-GlcNAcase (OGA) that removes O-GlcNAc, indicates the significant role of O-GlcNAc modification in the TRAF6-related cellular and metabolic dynamics. Our findings highlight the oncogenic function of TRAF6 in leukemia and illuminate the novel TRAF6/OGT/O-GlcNAc axis as a potential regulator of metabolic reprogramming in leukemogenesis.
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Affiliation(s)
- Shinichiro Matsui
- Department of Hematology, Chiba University Hospital, Chiba, Japan
- Department of Endocrinology, Hematology and Gerontology, Chiba University Graduate School of Medicine, Chiba, Japan
| | - Chihiro Ri
- Department of Hematology, Chiba University Hospital, Chiba, Japan
- Department of Endocrinology, Hematology and Gerontology, Chiba University Graduate School of Medicine, Chiba, Japan
| | - Lyndsey C Bolanos
- Division of Experimental Hematology and Cancer Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Kwangmin Choi
- Division of Experimental Hematology and Cancer Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Asuka Shibamiya
- Department of Hematology, Chiba University Hospital, Chiba, Japan
| | - Arata Ishii
- Department of Hematology, Chiba University Hospital, Chiba, Japan
| | - Koji Takaishi
- Department of Hematology, Chiba University Hospital, Chiba, Japan
| | - Nagisa Oshima-Hasegawa
- Department of Hematology, Chiba University Hospital, Chiba, Japan
- Department of Transfusion Medicine and Cell Therapy, Chiba University Hospital, Chiba, Japan
| | | | - Yusuke Takeda
- Department of Hematology, Chiba University Hospital, Chiba, Japan
| | - Naoya Mimura
- Department of Hematology, Chiba University Hospital, Chiba, Japan
- Department of Transfusion Medicine and Cell Therapy, Chiba University Hospital, Chiba, Japan
| | - Akihide Yoshimi
- Division of Cancer RNA Research, National Cancer Center Research Institute, Tokyo, Japan
| | - Koutaro Yokote
- Department of Endocrinology, Hematology and Gerontology, Chiba University Graduate School of Medicine, Chiba, Japan
| | - Daniel T Starczynowski
- Division of Experimental Hematology and Cancer Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
- Department of Cancer Biology, University of Cincinnati, Cincinnati, OH, USA
- Department of Pediatrics, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Emiko Sakaida
- Department of Hematology, Chiba University Hospital, Chiba, Japan
- Department of Endocrinology, Hematology and Gerontology, Chiba University Graduate School of Medicine, Chiba, Japan
- Department of Transfusion Medicine and Cell Therapy, Chiba University Hospital, Chiba, Japan
| | - Tomoya Muto
- Department of Hematology, Chiba University Hospital, Chiba, Japan.
- Department of Endocrinology, Hematology and Gerontology, Chiba University Graduate School of Medicine, Chiba, Japan.
- Division of Cancer RNA Research, National Cancer Center Research Institute, Tokyo, Japan.
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Jiang M, Han J, Ma Q, Chen X, Xu R, Wang Q, Zheng J, Wang W, Song J, Huang Y, Chen Y. Nicotine-derived NNK promotes CRC progression through activating TMUB1/AKT pathway in METTL14/YTHDF2-mediated m6A manner. JOURNAL OF HAZARDOUS MATERIALS 2024; 467:133692. [PMID: 38341886 DOI: 10.1016/j.jhazmat.2024.133692] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2023] [Revised: 01/30/2024] [Accepted: 01/31/2024] [Indexed: 02/13/2024]
Abstract
Cigarette smoking substantially promotes tumorigenesis and progression of colorectal cancer; however, the underlying molecular mechanism remains unclear. Among 662 colorectal cancer patients, our investigation revealed a significant correlation between cigarette smoking and factors, such as large tumor size, poor differentiation, and high degree of invasion. Among the nicotine-derived nitrosamines, 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanone (NNK) emerged as the most critical carcinogen, which significantly promoted the malignant progression of colorectal cancer both in vivo and in vitro. The results of methylated RNA immunoprecipitation and transcriptome sequencing indicated that NNK upregulated transmembrane and ubiquitin-like domain-containing protein 1 (TMUB1) via N6-adenosine methylation, which was regulated by methyltransferase-like 14 (METTL14) and YTH N6-methyladenosine RNA binding protein 2 (YTHDF2). Elevated TMUB1 levels were associated with a higher risk of cancer invasion and metastasis, leading to a high mortality risk in patients with colorectal cancer. Additionally, TMUB1 promoted lysine63-linked ubiquitination of AKT by interacting with AMFR, which led to the induction of malignant proliferation and metastasis in colorectal cancer cells exposed to NNK. In summary, this study provides a new insight, indicating that targeting TMUB1 expression via METTL14/YTHDF2 mediated N6-adenosine methylation may be a potential therapeutic and prognostic target for patients with colorectal cancer who smoke.
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Affiliation(s)
- Min Jiang
- School of Public Health, Xuzhou Medical University, Xuzhou 221004, Jiangsu, China; Center for Medical Statistics and Data Analysis, Xuzhou Medical University, Xuzhou 221004, Jiangsu, China; Key Laboratory of Human Genetics and Environmental Medicine, Xuzhou Medical University, Xuzhou 221004, Jiangsu, China
| | - Jingyi Han
- School of Public Health, Xuzhou Medical University, Xuzhou 221004, Jiangsu, China
| | - Qun Ma
- School of Public Health, Xuzhou Medical University, Xuzhou 221004, Jiangsu, China
| | - Xue Chen
- School of Public Health, Xuzhou Medical University, Xuzhou 221004, Jiangsu, China
| | - Renjie Xu
- School of Public Health, Xuzhou Medical University, Xuzhou 221004, Jiangsu, China
| | - Qing Wang
- School of Public Health, Xuzhou Medical University, Xuzhou 221004, Jiangsu, China
| | - Jia Zheng
- Department of Clinical Epidemiology, The Fourth Affiliated Hospital of China Medical University, Shenyang, China
| | - Weimin Wang
- Department of Oncology, Yixing Hospital Affiliated to Medical College of Yangzhou University, Yixing, Jiangsu, PR China
| | - Jun Song
- Department of General Surgery, The Affiliated Hospital of Xuzhou Medical University, Xuzhou 221002, Jiangsu, China
| | - Yefei Huang
- School of Public Health, Xuzhou Medical University, Xuzhou 221004, Jiangsu, China.
| | - Yansu Chen
- School of Public Health, Xuzhou Medical University, Xuzhou 221004, Jiangsu, China; Center for Medical Statistics and Data Analysis, Xuzhou Medical University, Xuzhou 221004, Jiangsu, China; Key Laboratory of Human Genetics and Environmental Medicine, Xuzhou Medical University, Xuzhou 221004, Jiangsu, China.
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7
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Wu C, Hu L, Liu B, Zeng X, Ma H, Cao Y, Li H, Zhang X. TRAF6-mediated ubiquitination of AKT in the nucleus is a critical event underlying the desensitization of G protein-coupled receptors. Cell Commun Signal 2024; 22:213. [PMID: 38566235 PMCID: PMC10986131 DOI: 10.1186/s12964-024-01592-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2024] [Accepted: 03/23/2024] [Indexed: 04/04/2024] Open
Abstract
BACKGROUND Desensitization of G protein-coupled receptors (GPCRs) refers to the attenuation of receptor responsiveness by prolonged or intermittent exposure to agonists. The binding of β-arrestin to the cytoplasmic cavity of the phosphorylated receptor, which competes with the G protein, has been widely accepted as an extensive model for explaining GPCRs desensitization. However, studies on various GPCRs, including dopamine D2-like receptors (D2R, D3R, D4R), have suggested the existence of other desensitization mechanisms. The present study employed D2R/D3R variants with different desensitization properties and utilized loss-of-function approaches to uncover the mechanisms underlying GPCRs homologous desensitization, focusing on the signaling cascade that regulates the ubiquitination of AKT. RESULTS AKT undergoes K8/14 ubiquitination by TRAF6, which occurs in the nucleus and promotes its membrane recruitment, phosphorylation and activation under receptor desensitization conditions. The nuclear entry of TRAF6 relies on the presence of the importin complex. Src regulates the nuclear entry of TRAF6 by mediating the interaction between TRAF6 and importin β1. Ubiquitinated AKT translocates to the plasma membrane where it associates with Mdm2 to phosphorylate it at the S166 and S186 residues. Thereafter, phosphorylated Mdm2 is recruited to the nucleus, resulting in the deubiquitination of β-Arr2. The deubiquitinated β-Arr2 then forms a complex with Gβγ, which serves as a biomarker for GPCRs desensitization. Like in D3R, ubiquitination of AKT is also involved in the desensitization of β2 adrenoceptors. CONCLUSION Our study proposed that the property of a receptor that causes a change in the subcellular localization of TRAF6 from the cytoplasm to the nucleus to mediate AKT ubiquitination could initiate the desensitization of GPCRs.
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Affiliation(s)
- Chengyan Wu
- School of Pharmaceutical Sciences, Guizhou University, Guiyang, 550025, China
| | - Li Hu
- School of Pharmaceutical Sciences, Guizhou University, Guiyang, 550025, China
| | - Bing Liu
- School of Pharmaceutical Sciences, Guizhou University, Guiyang, 550025, China
| | - Xingyue Zeng
- School of Pharmaceutical Sciences, Guizhou University, Guiyang, 550025, China
| | - Haixiang Ma
- School of Pharmaceutical Sciences, Guizhou University, Guiyang, 550025, China
| | - Yongkai Cao
- Institute of Translational Medicine, The First Affiliated Hospital of Shenzhen University, Shenzhen, 518035, China
| | - Huijun Li
- Department of Pharmaceuticals, People's Hospital of Zunyi City Bo Zhou District, Zunyi, 563000, China
| | - Xiaohan Zhang
- School of Pharmaceutical Sciences, Guizhou University, Guiyang, 550025, China.
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8
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Qi H, Tian D, Luan F, Yang R, Zeng N. Pathophysiological changes of muscle after ischemic stroke: a secondary consequence of stroke injury. Neural Regen Res 2024; 19:737-746. [PMID: 37843207 PMCID: PMC10664100 DOI: 10.4103/1673-5374.382221] [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: 01/06/2023] [Revised: 03/30/2023] [Accepted: 06/01/2023] [Indexed: 10/17/2023] Open
Abstract
Sufficient clinical evidence suggests that the damage caused by ischemic stroke to the body occurs not only in the acute phase but also during the recovery period, and that the latter has a greater impact on the long-term prognosis of the patient. However, current stroke studies have typically focused only on lesions in the central nervous system, ignoring secondary damage caused by this disease. Such a phenomenon arises from the slow progress of pathophysiological studies examining the central nervous system. Further, the appropriate therapeutic time window and benefits of thrombolytic therapy are still controversial, leading scholars to explore more pragmatic intervention strategies. As treatment measures targeting limb symptoms can greatly improve a patient's quality of life, they have become a critical intervention strategy. As the most vital component of the limbs, skeletal muscles have become potential points of concern. Despite this, to the best of our knowledge, there are no comprehensive reviews of pathophysiological changes and potential treatments for post-stroke skeletal muscle. The current review seeks to fill a gap in the current understanding of the pathological processes and mechanisms of muscle wasting atrophy, inflammation, neuroregeneration, mitochondrial changes, and nutritional dysregulation in stroke survivors. In addition, the challenges, as well as the optional solutions for individualized rehabilitation programs for stroke patients based on motor function are discussed.
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Affiliation(s)
- Hu Qi
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan Province, China
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan Province, China
| | - Dan Tian
- Acupuncture and Tuina School, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan Province, China
| | - Fei Luan
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan Province, China
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan Province, China
| | - Ruocong Yang
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan Province, China
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan Province, China
| | - Nan Zeng
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan Province, China
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan Province, China
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9
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Campos Alonso M, Knobeloch KP. In the moonlight: non-catalytic functions of ubiquitin and ubiquitin-like proteases. Front Mol Biosci 2024; 11:1349509. [PMID: 38455765 PMCID: PMC10919355 DOI: 10.3389/fmolb.2024.1349509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Accepted: 02/05/2024] [Indexed: 03/09/2024] Open
Abstract
Proteases that cleave ubiquitin or ubiquitin-like proteins (UBLs) are critical players in maintaining the homeostasis of the organism. Concordantly, their dysregulation has been directly linked to various diseases, including cancer, neurodegeneration, developmental aberrations, cardiac disorders and inflammation. Given their potential as novel therapeutic targets, it is essential to fully understand their mechanisms of action. Traditionally, observed effects resulting from deficiencies in deubiquitinases (DUBs) and UBL proteases have often been attributed to the misregulation of substrate modification by ubiquitin or UBLs. Therefore, much research has focused on understanding the catalytic activities of these proteins. However, this view has overlooked the possibility that DUBs and UBL proteases might also have significant non-catalytic functions, which are more prevalent than previously believed and urgently require further investigation. Moreover, multiple examples have shown that either selective loss of only the protease activity or complete absence of these proteins can have different functional and physiological consequences. Furthermore, DUBs and UBL proteases have been shown to often contain domains or binding motifs that not only modulate their catalytic activity but can also mediate entirely different functions. This review aims to shed light on the non-catalytic, moonlighting functions of DUBs and UBL proteases, which extend beyond the hydrolysis of ubiquitin and UBL chains and are just beginning to emerge.
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Affiliation(s)
- Marta Campos Alonso
- Institute of Neuropathology, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Klaus-Peter Knobeloch
- Institute of Neuropathology, Faculty of Medicine, University of Freiburg, Freiburg, Germany
- CIBSS—Centre for Integrative Biological Signalling Studies, University of Freiburg, Freiburg, Germany
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10
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Feng T, Wang P, Zhang X. Skp2: A critical molecule for ubiquitination and its role in cancer. Life Sci 2024; 338:122409. [PMID: 38184273 DOI: 10.1016/j.lfs.2023.122409] [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: 10/09/2023] [Revised: 12/24/2023] [Accepted: 12/29/2023] [Indexed: 01/08/2024]
Abstract
The ubiquitin-proteasome system (UPS) is a multi-step process that serves as the primary pathway for protein degradation within cells. UPS activity also plays a crucial role in regulating various life processes, including the cell cycle, signal transduction, DNA repair, and others. The F-box protein Skp2, a crucial member of the UPS, plays a central role in the development of various diseases. Skp2 controls cancer cell growth and drug resistance by ubiquitinating modifications to a variety of proteins. This review emphasizes the multifaceted role of Skp2 in a wide range of cancers and the mechanisms involved, highlighting the potential of Skp2 as a therapeutic target in cancer. Additionally, we describe the impactful influence exerted by Skp2 in various other diseases beyond cancer.
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Affiliation(s)
- Tianyang Feng
- The Fourth Affiliated Hospital of China Medical University, Department of Urology, Shenyang 110032, China; Liaoning Provincial Key Laboratory of Basic Research for Bladder Diseases, Shenyang 110000, China
| | - Ping Wang
- The Fourth Affiliated Hospital of China Medical University, Department of Urology, Shenyang 110032, China; Liaoning Provincial Key Laboratory of Basic Research for Bladder Diseases, Shenyang 110000, China
| | - Xiling Zhang
- The Fourth Affiliated Hospital of China Medical University, Department of Urology, Shenyang 110032, China; Liaoning Provincial Key Laboratory of Basic Research for Bladder Diseases, Shenyang 110000, China.
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11
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Ma CW, Wang ZQ, Ran R, Liao HY, Lyu JY, Ren Y, Lei ZY, Zhang HH. TGF-β signaling pathway in spinal cord injury: Mechanisms and therapeutic potential. J Neurosci Res 2024; 102:e25255. [PMID: 37814990 DOI: 10.1002/jnr.25255] [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: 02/14/2023] [Revised: 08/15/2023] [Accepted: 09/24/2023] [Indexed: 10/11/2023]
Abstract
Spinal cord injury (SCI) is a highly disabling central nervous system injury with a complex pathological process, resulting in severe sensory and motor dysfunction. The current treatment modalities only alleviate its symptoms and cannot effectively intervene or treat its pathological process. Many studies have reported that the transforming growth factor (TGF)-β signaling pathway plays an important role in neuronal differentiation, growth, survival, and axonal regeneration after central nervous system injury. Furthermore, the TGF-β signaling pathway has a vital regulatory role in SCI pathophysiology and neural regeneration. Following SCI, regulation of the TGF-β signaling pathway can suppress inflammation, reduce apoptosis, prevent glial scar formation, and promote neural regeneration. Due to its role in SCI, the TGF-β signaling pathway could be a potential therapeutic target. This article reported the pathophysiology of SCI, the characteristics of the TGF-β signaling pathway, the role of the TGF-β signaling pathway in SCI, and the latest evidence for targeting the TGF-β signaling pathway for treating SCI. In addition, the limitations and difficulties in TGF-β signaling pathway research in SCI are discussed, and solutions are provided to address these potential challenges. We hope this will provide a reference for the TGF-β signaling pathway and SCI research, offering a theoretical basis for targeted therapy of SCI.
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Affiliation(s)
- Chun-Wei Ma
- Department of Orthopedics, Lanzhou University Second Hospital, Lanzhou, China
- The Second Clinical Medical College, Lanzhou University, Lanzhou, China
| | - Zhi-Qiang Wang
- Department of Orthopedics, Lanzhou University Second Hospital, Lanzhou, China
- The Second Clinical Medical College, Lanzhou University, Lanzhou, China
| | - Rui Ran
- Department of Orthopedics, Lanzhou University Second Hospital, Lanzhou, China
- The Second Clinical Medical College, Lanzhou University, Lanzhou, China
| | - Hai-Yang Liao
- The Second Clinical Medical College, Lanzhou University, Lanzhou, China
| | - Jia-Yang Lyu
- Department of Orthopedics, Lanzhou University Second Hospital, Lanzhou, China
- The Second Clinical Medical College, Lanzhou University, Lanzhou, China
| | - Yi Ren
- Department of Orthopedics, Lanzhou University Second Hospital, Lanzhou, China
- The Second Clinical Medical College, Lanzhou University, Lanzhou, China
| | - Ze-Yuan Lei
- Department of Orthopedics, Lanzhou University Second Hospital, Lanzhou, China
- The Second Clinical Medical College, Lanzhou University, Lanzhou, China
| | - Hai-Hong Zhang
- Department of Orthopedics, Lanzhou University Second Hospital, Lanzhou, China
- The Second Clinical Medical College, Lanzhou University, Lanzhou, China
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12
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Su C, Zhang H, Mo J, Liao Z, Zhang B, Zhu P. SP1-activated USP27X-AS1 promotes hepatocellular carcinoma progression via USP7-mediated AKT stabilisation. Clin Transl Med 2024; 14:e1563. [PMID: 38279869 PMCID: PMC10819096 DOI: 10.1002/ctm2.1563] [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: 09/08/2023] [Revised: 12/11/2023] [Accepted: 01/14/2024] [Indexed: 01/29/2024] Open
Abstract
BACKGROUND Hepatocellular carcinoma (HCC) continues to pose a significant threat to patient survival. Emerging evidence underscores the pivotal involvement of long non-coding RNAs (lncRNAs) in the cancer process. Nevertheless, our understanding of the roles and processes of lncRNAs in HCC remains limited. METHODS The expression level of USP27X-AS1 was assessed in an HCC patient cohort through a combination of bioinformatics analysis and qRT-PCR. Subsequent biological experiments were conducted to delve into the functional aspects of USP27X-AS1. Additional molecular biology techniques, including RNA pulldown and RNA immunoprecipitation (RIP), were employed to elucidate the potential mechanisms involving USP27X-AS1 in HCC. Finally, CUT-RUN assay and other investigations were carried out to determine the factors contributing to the heightened expression of USP27X-AS1 in HCC. RESULTS High expression of the novel oncogene USP27X-AS1 predicted poor prognosis in HCC patients. Further investigation confirmed that USP27X-AS1 promoted the proliferation and metastasis of HCC by enabling USP7 to interact with AKT, which reduced level of AKT poly-ubiquitylation and enhanced AKT protein stability, which improves protein stabilisation of AKT and promotes the progression of HCC. Moreover, we also revealed that SP1 binds to USP27X-AS1 promoter to activate its transcription. CONCLUSIONS Novel oncogenic lncRNA USP27X-AS1 promoted HCC progression via recruiting USP7 to deubiquitinate AKT. SP1 transcriptionally activated USP27X-AS1 expression. These findings shed light on HCC and pointed to USP27X-AS1 as a potential predictive biomarker and treatment target for the malignancy.
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Affiliation(s)
- Chen Su
- Hepatic Surgery CenterTongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubeiPeople's Republic of China
- Hubei Key Laboratory of Hepato‐Pancreato‐Biliary DiseasesWuhanHubeiPeople's Republic of China
| | - Haoquan Zhang
- Hepatic Surgery CenterTongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubeiPeople's Republic of China
- Hubei Key Laboratory of Hepato‐Pancreato‐Biliary DiseasesWuhanHubeiPeople's Republic of China
| | - Jie Mo
- Hepatic Surgery CenterTongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubeiPeople's Republic of China
- Hubei Key Laboratory of Hepato‐Pancreato‐Biliary DiseasesWuhanHubeiPeople's Republic of China
| | - Zhibin Liao
- Hepatic Surgery CenterTongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubeiPeople's Republic of China
- Hubei Key Laboratory of Hepato‐Pancreato‐Biliary DiseasesWuhanHubeiPeople's Republic of China
| | - Bixiang Zhang
- Hepatic Surgery CenterTongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubeiPeople's Republic of China
- Hubei Key Laboratory of Hepato‐Pancreato‐Biliary DiseasesWuhanHubeiPeople's Republic of China
- Key Laboratory of Organ TransplantationMinistry of EducationWuhanHubeiPeople's Republic of China
- Key Laboratory of Organ TransplantationNational Health CommissionWuhanHubeiPeople's Republic of China
- Key Laboratory of Organ TransplantationChinese Academy of Medical SciencesWuhanHubeiPeople's Republic of China
| | - Peng Zhu
- Hepatic Surgery CenterTongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubeiPeople's Republic of China
- Hubei Key Laboratory of Hepato‐Pancreato‐Biliary DiseasesWuhanHubeiPeople's Republic of China
- Key Laboratory of Organ TransplantationMinistry of EducationWuhanHubeiPeople's Republic of China
- Key Laboratory of Organ TransplantationNational Health CommissionWuhanHubeiPeople's Republic of China
- Key Laboratory of Organ TransplantationChinese Academy of Medical SciencesWuhanHubeiPeople's Republic of China
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13
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Bracho-Valdés I, Cervantes-Villagrana RD, Beltrán-Navarro YM, Olguín-Olguín A, Escobar-Islas E, Carretero-Ortega J, Olivares-Reyes JA, Reyes-Cruz G, Gutkind JS, Vázquez-Prado J. Akt Is Controlled by Bag5 through a Monoubiquitination to Polyubiquitination Switch. Int J Mol Sci 2023; 24:17531. [PMID: 38139359 PMCID: PMC10743781 DOI: 10.3390/ijms242417531] [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: 11/22/2023] [Revised: 12/13/2023] [Accepted: 12/14/2023] [Indexed: 12/24/2023] Open
Abstract
The serine-threonine kinase Akt plays a fundamental role in cell survival, metabolism, proliferation, and migration. To keep these essential processes under control, Akt activity and stability must be tightly regulated; otherwise, life-threatening conditions might prevail. Although it is well understood that phosphorylation regulates Akt activity, much remains to be known about how its stability is maintained. Here, we characterize BAG5, a chaperone regulator, as a novel Akt-interactor and substrate that attenuates Akt stability together with Hsp70. BAG5 switches monoubiquitination to polyubiquitination of Akt and increases its degradation caused by Hsp90 inhibition and Hsp70 overexpression. Akt interacts with BAG5 at the linker region that joins the first and second BAG domains and phosphorylates the first BAG domain. The Akt-BAG5 complex is formed in serum-starved conditions and dissociates in response to HGF, coincident with BAG5 phosphorylation. BAG5 knockdown attenuated Akt degradation and facilitated its activation, whereas the opposite effect was caused by BAG5 overexpression. Altogether, our results indicate that Akt stability and signaling are dynamically regulated by BAG5, depending on growth factor availability.
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Affiliation(s)
- Ismael Bracho-Valdés
- Department of Pharmacology, Cinvestav-IPN. Av. Instituto Politécnico Nacional 2508, Col. San Pedro Zacatenco, Mexico City 07360, Mexico; (I.B.-V.)
- Academic Department of Apparatus and Systems I, Deanship of Health Sciences, Universidad Autónoma de Guadalajara, Av. Patria 1201, Zapopan 45129, Mexico
| | - Rodolfo Daniel Cervantes-Villagrana
- Department of Pharmacology, Cinvestav-IPN. Av. Instituto Politécnico Nacional 2508, Col. San Pedro Zacatenco, Mexico City 07360, Mexico; (I.B.-V.)
- Department of Pharmacology, Moores Cancer Center, School of Medicine, University of California San Diego, La Jolla, San Diego, CA 92093, USA
| | - Yarely Mabell Beltrán-Navarro
- Department of Pharmacology, Cinvestav-IPN. Av. Instituto Politécnico Nacional 2508, Col. San Pedro Zacatenco, Mexico City 07360, Mexico; (I.B.-V.)
| | - Adán Olguín-Olguín
- Department of Pharmacology, Cinvestav-IPN. Av. Instituto Politécnico Nacional 2508, Col. San Pedro Zacatenco, Mexico City 07360, Mexico; (I.B.-V.)
| | - Estanislao Escobar-Islas
- Department of Pharmacology, Cinvestav-IPN. Av. Instituto Politécnico Nacional 2508, Col. San Pedro Zacatenco, Mexico City 07360, Mexico; (I.B.-V.)
| | - Jorge Carretero-Ortega
- Department of Pharmacology, Cinvestav-IPN. Av. Instituto Politécnico Nacional 2508, Col. San Pedro Zacatenco, Mexico City 07360, Mexico; (I.B.-V.)
| | - J. Alberto Olivares-Reyes
- Department of Biochemistry, Cinvestav-IPN. Av. Instituto Politécnico Nacional 2508, Col. San Pedro Zacatenco, Mexico City 07360, Mexico
| | - Guadalupe Reyes-Cruz
- Department of Cell Biology, Cinvestav-IPN. Av. Instituto Politécnico Nacional 2508, Col. San Pedro Zacatenco, Mexico City 07360, Mexico
| | - J. Silvio Gutkind
- Department of Pharmacology, Moores Cancer Center, School of Medicine, University of California San Diego, La Jolla, San Diego, CA 92093, USA
| | - José Vázquez-Prado
- Department of Pharmacology, Cinvestav-IPN. Av. Instituto Politécnico Nacional 2508, Col. San Pedro Zacatenco, Mexico City 07360, Mexico; (I.B.-V.)
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14
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Wu S, Han L, Zhou M, Li X, Luo L, Wang Z, Yan S, Li F, Chen J, Yang J. LncRNA AOC4P recruits TRAF6 to regulate EZH2 ubiquitination and participates in trophoblast glycolysis and M2 macrophage polarization which is associated with recurrent spontaneous abortion. Int Immunopharmacol 2023; 125:111201. [PMID: 37951195 DOI: 10.1016/j.intimp.2023.111201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Revised: 10/30/2023] [Accepted: 11/06/2023] [Indexed: 11/13/2023]
Abstract
During embryo implantation, trophoblast cells rely on large amounts of energy produced by glycolysis for their rapid growth and invasion. The disorder of trophoblast metabolism may lead to recurrent spontaneous abortion (RSA). Lactate, which is produced by the glycolysis of trophoblast cells during early pregnancy, can promote the polarization of M2 macrophages and maintain an anti-inflammatory environment at the maternal-fetal interface. Our study found that amine oxidase copper-containing 4 pseudogene (AOC4P) was abnormally increased in villi from RSA patients. It inhibited the glycolysis of trophoblast cells and thus hindered the polarization of M2 macrophages. Further studies showed that AOC4P combines with tumor necrosis factor receptor-associated factor 6 (TRAF6) to upregulate TRAF6 expression. TRAF6 acted as an E3 ubiquitin ligase to promote ubiquitination and degradation of zeste homolog 2 (EZH2). These results provided new insights into the important role played by AOC4P at the maternal-fetal interface.
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Affiliation(s)
- Shujuan Wu
- Reproductive Medical Center, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, China; Hubei Clinic Research Center for Assisted Reproductive Technology and Embryonic Development, Wuhan, Hubei 430060, China
| | - Lu Han
- Reproductive Medical Center, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, China; Hubei Clinic Research Center for Assisted Reproductive Technology and Embryonic Development, Wuhan, Hubei 430060, China
| | - Mengqi Zhou
- Reproductive Medical Center, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, China; Hubei Clinic Research Center for Assisted Reproductive Technology and Embryonic Development, Wuhan, Hubei 430060, China
| | - Xing Li
- Department of Obstetrics and Gynecology, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, China
| | - Lingbo Luo
- Reproductive Medical Center, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, China; Hubei Clinic Research Center for Assisted Reproductive Technology and Embryonic Development, Wuhan, Hubei 430060, China
| | - Zehao Wang
- Reproductive Medical Center, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, China; Hubei Clinic Research Center for Assisted Reproductive Technology and Embryonic Development, Wuhan, Hubei 430060, China
| | - Sisi Yan
- Reproductive Medical Center, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, China; Hubei Clinic Research Center for Assisted Reproductive Technology and Embryonic Development, Wuhan, Hubei 430060, China
| | - Faminzi Li
- Reproductive Medical Center, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, China; Hubei Clinic Research Center for Assisted Reproductive Technology and Embryonic Development, Wuhan, Hubei 430060, China
| | - Jiao Chen
- Reproductive Medical Center, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, China; Hubei Clinic Research Center for Assisted Reproductive Technology and Embryonic Development, Wuhan, Hubei 430060, China.
| | - Jing Yang
- Reproductive Medical Center, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, China; Hubei Clinic Research Center for Assisted Reproductive Technology and Embryonic Development, Wuhan, Hubei 430060, China.
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15
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Ge R, Huang GM. Targeting transforming growth factor beta signaling in metastatic osteosarcoma. J Bone Oncol 2023; 43:100513. [PMID: 38021074 PMCID: PMC10666000 DOI: 10.1016/j.jbo.2023.100513] [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: 10/03/2023] [Revised: 10/28/2023] [Accepted: 11/07/2023] [Indexed: 12/01/2023] Open
Abstract
Osteosarcoma is a rare type of bone cancer, and half of the cases affect children and adolescents younger than 20 years of age. Despite intensive efforts to improve both chemotherapeutics and surgical management, the clinical outcome for metastatic osteosarcoma remains poor. Transforming growth factor β (TGF-β) is one of the most abundant growth factors in bones. The TGF-β signaling pathway has complex and contradictory roles in the pathogenesis of human cancers. TGF-β is primarily a tumor suppressor that inhibits proliferation and induces apoptosis of premalignant epithelial cells. In the later stages of cancer progression, however, TGF-β functions as a metastasis promoter by promoting tumor growth, inducing epithelial-mesenchymal transition (EMT), blocking antitumor immune responses, increasing tumor-associated fibrosis, and enhancing angiogenesis. In contrast with the dual effects of TGF-β on carcinoma (epithelial origin) progression, TGF-β seems to mainly have a pro-tumoral effect on sarcomas including osteosarcoma (mesenchymal origin). Many drugs that target TGF-β signaling have been developed: neutralizing antibodies that prevent TGF-β binding to receptor complexes; ligand trap employing recombinant Fc-fusion proteins containing the soluble ectodomain of either type II (TβRII) or the type III receptor ((TβRIII), preventing TGF-β from binding to its receptors; antisense nucleotides that reduce TGF-β expression at the transcriptional/translational level; small molecule inhibitors of serine/threonine kinases of the type I receptor (TβRI) preventing downstream signaling; and vaccines that contain cell lines transfected with TβRII antisense genes, or target furin convertase, resulting in reduced TGF-β signaling. TGF-β antagonists have been shown to have effects on osteosarcoma in vitro and in vivo. One of the small molecule TβRI inhibitors, Vactosertib, is currently undergoing a phase 1/2 clinical trial to evaluate its effect on osteosarcoma. Several phase 1/2/3 clinical trials have shown TGF-β antagonists are safe and well tolerated. For instance, Luspatercept, a TGF-β ligand trap, has been approved by the FDA for the treatment of anemia associated with myeloid dysplastic syndrome (MDS) with ring sideroblasts/mutated SF3B1 with acceptable safety. Clinical trials evaluating the long-term safety of Luspatercept are in process.
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Affiliation(s)
- Rongrong Ge
- Hillman Cancer Center at Central Pennsylvania, University of Pittsburg Medical Center, Harrisburg, PA, 17109, USA
| | - Gavin M. Huang
- Harrisburg Academy School, 10 Erford Rd, Wormleysburg, PA, 17043, USA
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16
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Li O, Li L, Sheng Y, Ke K, Wu J, Mou Y, Liu M, Jin W. Biological characteristics of pancreatic ductal adenocarcinoma: Initiation to malignancy, intracellular to extracellular. Cancer Lett 2023; 574:216391. [PMID: 37714257 DOI: 10.1016/j.canlet.2023.216391] [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: 05/28/2023] [Revised: 09/04/2023] [Accepted: 09/10/2023] [Indexed: 09/17/2023]
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is a highly life-threatening tumour with a low early-detection rate, rapid progression and a tendency to develop resistance to chemotherapy. Therefore, understanding the regulatory mechanisms underlying the initiation, development and metastasis of pancreatic cancer is necessary for enhancing therapeutic effectiveness. In this review, we summarised single-gene mutations (including KRAS, CDKN2A, TP53, SMAD4 and some other less prevalent mutations), epigenetic changes (including DNA methylation, histone modifications and RNA interference) and large chromosome alterations (such as copy number variations, chromosome rearrangements and chromothripsis) associated with PDAC. In addition, we discussed variations in signalling pathways that act as intermediate oncogenic factors in PDAC, including PI3K/AKT, MAPK/ERK, Hippo and TGF-β signalling pathways. The focus of this review was to investigate alterations in the microenvironment of PDAC, particularly the role of immunosuppressive cells, cancer-associated fibroblasts, lymphocytes, other para-cancerous cells and tumour extracellular matrix in tumour progression. Peripheral axons innervating the pancreas have been reported to play a crucial role in the development of cancer. In addition, tumour cells can influence the behaviour of neighbouring non-tumour cells by secreting certain factors, both locally and at a distance. In this review, we elucidated the alterations in intracellular molecules and the extracellular environment that occur during the progression of PDAC. Altogether, this review may enhance the understanding of the biological characteristics of PDAC and guide the development of more precise treatment strategies.
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Affiliation(s)
- Ou Li
- General Surgery, Cancer Center, Department of Gastrointestinal and Pancreatic Surgery, Zhejiang Provincial People's Hospital (Affiliated People's Hospital), Hangzhou Medical College, Hangzhou, Zhejiang, China; Key Laboratory of Gastroenterology of Zhejiang Province, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, China
| | - Li Li
- General Surgery, Cancer Center, Department of Gastrointestinal and Pancreatic Surgery, Zhejiang Provincial People's Hospital (Affiliated People's Hospital), Hangzhou Medical College, Hangzhou, Zhejiang, China; Key Laboratory of Gastroenterology of Zhejiang Province, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, China
| | - Yunru Sheng
- Center for Rehabilitation Medicine, Department of Anesthesiology, Zhejiang Provincial People's Hospital (Affiliated People's Hospital), Hangzhou Medical College, Hangzhou, Zhejiang, China
| | - Kun Ke
- General Surgery, Cancer Center, Department of Gastrointestinal and Pancreatic Surgery, Zhejiang Provincial People's Hospital (Affiliated People's Hospital), Hangzhou Medical College, Hangzhou, Zhejiang, China; Key Laboratory of Gastroenterology of Zhejiang Province, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, China
| | - Jianzhang Wu
- General Surgery, Cancer Center, Department of Gastrointestinal and Pancreatic Surgery, Zhejiang Provincial People's Hospital (Affiliated People's Hospital), Hangzhou Medical College, Hangzhou, Zhejiang, China; Key Laboratory of Gastroenterology of Zhejiang Province, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, China
| | - Yiping Mou
- General Surgery, Cancer Center, Department of Gastrointestinal and Pancreatic Surgery, Zhejiang Provincial People's Hospital (Affiliated People's Hospital), Hangzhou Medical College, Hangzhou, Zhejiang, China; Key Laboratory of Gastroenterology of Zhejiang Province, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, China
| | - Mingyang Liu
- State Key Laboratory of Molecular Oncology, National Cancer Center, China; National Clinical Research Center for Cancer, China; Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China.
| | - Weiwei Jin
- General Surgery, Cancer Center, Department of Gastrointestinal and Pancreatic Surgery, Zhejiang Provincial People's Hospital (Affiliated People's Hospital), Hangzhou Medical College, Hangzhou, Zhejiang, China; Key Laboratory of Gastroenterology of Zhejiang Province, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, China.
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17
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Chen T, Xu ZG, Luo J, Manne RK, Wang Z, Hsu CC, Pan BS, Cai Z, Tsai PJ, Tsai YS, Chen ZZ, Li HY, Lin HK. NSUN2 is a glucose sensor suppressing cGAS/STING to maintain tumorigenesis and immunotherapy resistance. Cell Metab 2023; 35:1782-1798.e8. [PMID: 37586363 PMCID: PMC10726430 DOI: 10.1016/j.cmet.2023.07.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 05/29/2023] [Accepted: 07/18/2023] [Indexed: 08/18/2023]
Abstract
Glucose metabolism is known to orchestrate oncogenesis. Whether glucose serves as a signaling molecule directly regulating oncoprotein activity for tumorigenesis remains elusive. Here, we report that glucose is a cofactor binding to methyltransferase NSUN2 at amino acid 1-28 to promote NSUN2 oligomerization and activation. NSUN2 activation maintains global m5C RNA methylation, including TREX2, and stabilizes TREX2 to restrict cytosolic dsDNA accumulation and cGAS/STING activation for promoting tumorigenesis and anti-PD-L1 immunotherapy resistance. An NSUN2 mutant defective in glucose binding or disrupting glucose/NSUN2 interaction abolishes NSUN2 activity and TREX2 induction leading to cGAS/STING activation for oncogenic suppression. Strikingly, genetic deletion of the glucose/NSUN2/TREX2 axis suppresses tumorigenesis and overcomes anti-PD-L1 immunotherapy resistance in those cold tumors through cGAS/STING activation to facilitate apoptosis and CD8+ T cell infiltration. Our study identifies NSUN2 as a direct glucose sensor whose activation by glucose drives tumorigenesis and immunotherapy resistance by maintaining TREX2 expression for cGAS/STING inactivation.
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Affiliation(s)
- Tingjin Chen
- Department of Cancer Biology, Wake Forest Baptist Medical Center, Wake Forest University, Winston-Salem, NC 27157, USA
| | - Zhi-Gang Xu
- Chongqing Engineering Laboratory of Targeted and Innovative Therapeutics, Chongqing Key Laboratory of Kinase Modulators as Innovative Medicine, IATTI, Chongqing University of Arts and Sciences, Yongchuan, Chongqing 402160, China
| | - Jie Luo
- Department of Cancer Biology, Wake Forest Baptist Medical Center, Wake Forest University, Winston-Salem, NC 27157, USA
| | - Rajesh Kumar Manne
- Department of Cancer Biology, Wake Forest Baptist Medical Center, Wake Forest University, Winston-Salem, NC 27157, USA
| | - Zhengyu Wang
- University of Arkansas for Medical Sciences, College of Pharmacy, Division of Pharmaceutical Science, 200 South Cedar, Little Rock, AR 72202, USA
| | - Che-Chia Hsu
- Department of Cancer Biology, Wake Forest Baptist Medical Center, Wake Forest University, Winston-Salem, NC 27157, USA
| | - Bo-Syong Pan
- Department of Cancer Biology, Wake Forest Baptist Medical Center, Wake Forest University, Winston-Salem, NC 27157, USA
| | - Zhen Cai
- Department of Cancer Biology, Wake Forest Baptist Medical Center, Wake Forest University, Winston-Salem, NC 27157, USA
| | - Pei-Jane Tsai
- Department of Cancer Biology, Wake Forest Baptist Medical Center, Wake Forest University, Winston-Salem, NC 27157, USA
| | - Yau-Sheng Tsai
- Department of Cancer Biology, Wake Forest Baptist Medical Center, Wake Forest University, Winston-Salem, NC 27157, USA
| | - Zhong-Zhu Chen
- Chongqing Engineering Laboratory of Targeted and Innovative Therapeutics, Chongqing Key Laboratory of Kinase Modulators as Innovative Medicine, IATTI, Chongqing University of Arts and Sciences, Yongchuan, Chongqing 402160, China
| | - Hong-Yu Li
- University of Arkansas for Medical Sciences, College of Pharmacy, Division of Pharmaceutical Science, 200 South Cedar, Little Rock, AR 72202, USA
| | - Hui-Kuan Lin
- Department of Cancer Biology, Wake Forest Baptist Medical Center, Wake Forest University, Winston-Salem, NC 27157, USA.
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18
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Xu H, Li L, Dong B, Lu J, Zhou K, Yin X, Sun H. TRAF6 promotes chemoresistance to paclitaxel of triple negative breast cancer via regulating PKM2-mediated glycolysis. Cancer Med 2023; 12:19807-19820. [PMID: 37746908 PMCID: PMC10587986 DOI: 10.1002/cam4.6552] [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: 04/07/2023] [Revised: 08/22/2023] [Accepted: 09/08/2023] [Indexed: 09/26/2023] Open
Abstract
Ample evidence reveals that glycolysis is crucial to tumor progression; however, the underlying mechanism of its drug resistance is still worth being further explored. TRAF6, an E3 ubiquitin ligase, is well recognized to overexpress in various types of cancer, which predicts a poor prognosis. In our study, we discovered that TRAF6 was expressed more significantly in the case of triple-negative breast cancer (TNBC) than in other of breast cancers, promoting chemoresistance to paclitaxel; that inhibited TRAF6 expression in the chemoresistant TNBC (TNBC-CR) cells enhanced the sensitivity by decreasing glucose uptake and lactate production; that TRAF6 regulated glycolysis and facilitated chemoresistance via binding directly to PKM2; and that overexpressing PKM2 in the TNBC-CR cells with TRAF6 knocked down regained significantly TRAF6-dependent drug resistance and glycolysis. Additionally, we verified that TRAF6 could facilitate PKM2-mediated glycolysis and chemoresistance in animal models and clinical tumor tissues. Thus, we identified the novel function of TRAF6 to promote glycolysis and drug resistance in TNBC with the regulation of PKM2, which could provide a potential molecular target for TNBC treatment.
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Affiliation(s)
- Han Xu
- Department of General SurgeryJing'an District Center Hospital of ShanghaiShanghaiChina
| | - Longzhi Li
- Department of General SurgeryJing'an District Center Hospital of ShanghaiShanghaiChina
| | - Bing Dong
- Department of General SurgeryJing'an District Center Hospital of ShanghaiShanghaiChina
| | - Ji Lu
- Department of General SurgeryJing'an District Center Hospital of ShanghaiShanghaiChina
| | - Kun Zhou
- Department of General SurgeryJing'an District Center Hospital of ShanghaiShanghaiChina
| | - Xiaoxing Yin
- Department of General SurgeryJing'an District Center Hospital of ShanghaiShanghaiChina
| | - Huizhen Sun
- Department of Obstetrics and GynecologyXinhua Hospital Affiliated to Shanghai Jiaotong University School of MedicineShanghaiChina
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19
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Jeong Y, Oh AR, Jung YH, Gi H, Kim YU, Kim K. Targeting E3 ubiquitin ligases and their adaptors as a therapeutic strategy for metabolic diseases. Exp Mol Med 2023; 55:2097-2104. [PMID: 37779139 PMCID: PMC10618535 DOI: 10.1038/s12276-023-01087-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: 05/01/2023] [Revised: 06/23/2023] [Accepted: 07/06/2023] [Indexed: 10/03/2023] Open
Abstract
Posttranslational modification of proteins via ubiquitination determines their activation, translocation, dysregulation, or degradation. This process targets a large number of cellular proteins, affecting all biological pathways involved in the cell cycle, development, growth, and differentiation. Thus, aberrant regulation of ubiquitination is likely associated with several diseases, including various types of metabolic diseases. Among the ubiquitin enzymes, E3 ubiquitin ligases are regarded as the most influential ubiquitin enzymes due to their ability to selectively bind and recruit target substrates for ubiquitination. Continued research on the regulatory mechanisms of E3 ligases and their adaptors in metabolic diseases will further stimulate the discovery of new targets and accelerate the development of therapeutic options for metabolic diseases. In this review, based on recent discoveries, we summarize new insights into the roles of E3 ubiquitin ligases and their adaptors in the pathogenesis of metabolic diseases by highlighting recent evidence obtained in both human and animal model studies.
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Affiliation(s)
- Yelin Jeong
- Department of Biomedical Sciences, College of Medicine, Inha University, Incheon, Republic of Korea
- Program in Biomedical Science & Engineering, Inha University, Incheon, Republic of Korea
- Research Center for Controlling Intercellular Communication (RCIC), College of Medicine, Inha University, Incheon, 22212, Republic of Korea
| | - Ah-Reum Oh
- Department of Biomedical Sciences, College of Medicine, Inha University, Incheon, Republic of Korea
- Program in Biomedical Science & Engineering, Inha University, Incheon, Republic of Korea
- Research Center for Controlling Intercellular Communication (RCIC), College of Medicine, Inha University, Incheon, 22212, Republic of Korea
| | - Young Hoon Jung
- Department of Biomedical Sciences, College of Medicine, Inha University, Incheon, Republic of Korea
- Program in Biomedical Science & Engineering, Inha University, Incheon, Republic of Korea
- Research Center for Controlling Intercellular Communication (RCIC), College of Medicine, Inha University, Incheon, 22212, Republic of Korea
| | - HyunJoon Gi
- Department of Biomedical Sciences, College of Medicine, Inha University, Incheon, Republic of Korea
- Program in Biomedical Science & Engineering, Inha University, Incheon, Republic of Korea
- Research Center for Controlling Intercellular Communication (RCIC), College of Medicine, Inha University, Incheon, 22212, Republic of Korea
| | - Young Un Kim
- Department of Biomedical Sciences, College of Medicine, Inha University, Incheon, Republic of Korea
- Program in Biomedical Science & Engineering, Inha University, Incheon, Republic of Korea
- Research Center for Controlling Intercellular Communication (RCIC), College of Medicine, Inha University, Incheon, 22212, Republic of Korea
| | - KyeongJin Kim
- Department of Biomedical Sciences, College of Medicine, Inha University, Incheon, Republic of Korea.
- Program in Biomedical Science & Engineering, Inha University, Incheon, Republic of Korea.
- Research Center for Controlling Intercellular Communication (RCIC), College of Medicine, Inha University, Incheon, 22212, Republic of Korea.
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20
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Vemana HP, Dukhande VV. The effect of hormones insulin and glucagon on ubiquitin modifications elucidated by proteomics in liver cells. Life Sci 2023; 329:121935. [PMID: 37442415 PMCID: PMC10528490 DOI: 10.1016/j.lfs.2023.121935] [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: 04/04/2023] [Revised: 07/02/2023] [Accepted: 07/10/2023] [Indexed: 07/15/2023]
Abstract
AIMS Insulin action is intertwined with changing levels of glucose and counter-regulatory hormone glucagon. While insulin lowers blood sugar level, glucagon raises it by promoting the breakdown of the stored glycogen in liver and releases glucose into the bloodstream. The hormones insulin and glucagon are key in the pathogenesis of type 2 diabetes (T2D). Insulin resistance is a primary predisposing factor for diabetes. Phosphorylation of insulin signaling molecules is altered in the insulin-resistant state. However, ubiquitin (Ub) modifications in insulin-resistant state are relatively understudied. To dissect the underlying mechanisms, we performed a proteomics study on hepatoma cells to study the regulation of ubiquitination by insulin and glucagon. MATERIALS AND METHODS We performed western blotting, immunoprecipitations, and affinity pull down using tandem Ub binding entities (TUBE) reagents on hepatoma cells treated with insulin or glucagon. Next, we performed MS/MS analysis on Ub-linkage specific affinity pull down samples. Gene ontology analysis and protein-protein interaction network analysis was performed using DAVID GO and STRING db, respectively. KEY FINDINGS The ubiquitination pattern of total Ub, K48-linked Ub, and K63-linked Ub was altered with the treatment of hormones insulin and glucagon. Ubiquitination in immunoprecipitated samples showed enrichment with total Ub and K48-linked Ub but not with K63-linked Ub. Ubiquitination by treatment with hormones mainly enriched key signaling pathways MAPK, Akt, oxidative stress etc. SIGNIFICANCE: Our study identified key altered proteins and signal transduction pathways which aids in understanding the mechanisms of hormonal action on ubiquitination and identify new therapeutic targets for T2D.
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Affiliation(s)
- Hari Priya Vemana
- Department of Pharmaceutical Sciences, College of Pharmacy & Health Sciences, St. John's University, Queens, NY 11439, USA
| | - Vikas V Dukhande
- Department of Pharmaceutical Sciences, College of Pharmacy & Health Sciences, St. John's University, Queens, NY 11439, USA.
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21
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Li F, Wang L, Wang Y, Shen H, Kou Q, Shen C, Xu X, Zhang Y, Zhang J. HECW2 promotes the progression and chemoresistance of colorectal cancer via AKT/mTOR signaling activation by mediating the ubiquitin-proteasome degradation of lamin B1. J Cancer 2023; 14:2820-2832. [PMID: 37781079 PMCID: PMC10539569 DOI: 10.7150/jca.87545] [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: 06/27/2023] [Accepted: 08/21/2023] [Indexed: 10/03/2023] Open
Abstract
Colorectal cancer (CRC) is among the most common malignancies worldwide. Although a recent study has shown that E3 ubiquitin ligases play a major role in regulating the occurrence and development of CRC, there are few reports on the role of the E3 ubiquitin ligase HECW2(HECT, C2 and WW domain containing E3 ubiquitin protein ligase 2) in CRC progression and chemoresistance. We found that HECW2 is highly expressed in CRC tissues. HECW2 knockdown inhibits CRC progression and chemoresistance, whereas HECW2 overexpression has the opposite effect. Mechanistically, HECW2 activates the AKT/mTOR signaling pathway by mediating the ubiquitin-proteasome degradation of lamin B1, thereby promoting CRC progression and chemoresistance. Our findings suggest that HECW2 may be a promising novel therapeutic target for CRC treatment.
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Affiliation(s)
- Fang Li
- Medical School of Yan'an University, Yan'an 716000, China
| | - Li Wang
- Medical School of Yan'an University, Yan'an 716000, China
| | - Yujue Wang
- Medical School of Yan'an University, Yan'an 716000, China
| | - Hui Shen
- Medical School of Yan'an University, Yan'an 716000, China
| | - Qianrui Kou
- Medical School of Yan'an University, Yan'an 716000, China
| | | | - Xiangrong Xu
- Medical School of Yan'an University, Yan'an 716000, China
| | - Yunqing Zhang
- Yan'an University Affiliated Hospital, Yan'an 716000, China
| | - Jing Zhang
- Medical School of Yan'an University, Yan'an 716000, China
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22
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Mukherjee S, Chakraborty M, Msengi EN, Haubner J, Zhang J, Jellinek MJ, Carlson HL, Pyles K, Ulmasov B, Lutkewitte AJ, Carpenter D, McCommis KS, Ford DA, Finck BN, Neuschwander-Tetri BA, Chakraborty A. Ube4A maintains metabolic homeostasis and facilitates insulin signaling in vivo. Mol Metab 2023; 75:101767. [PMID: 37429524 PMCID: PMC10368927 DOI: 10.1016/j.molmet.2023.101767] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Revised: 06/21/2023] [Accepted: 06/29/2023] [Indexed: 07/12/2023] Open
Abstract
OBJECTIVE Defining the regulators of cell metabolism and signaling is essential to design new therapeutic strategies in obesity and NAFLD/NASH. E3 ubiquitin ligases control diverse cellular functions by ubiquitination-mediated regulation of protein targets, and thus their functional aberration is associated with many diseases. The E3 ligase Ube4A has been implicated in human obesity, inflammation, and cancer. However, its in vivo function is unknown, and no animal models are available to study this novel protein. METHODS A whole-body Ube4A knockout (UKO) mouse model was generated, and various metabolic parameters were compared in chow- and high fat diet (HFD)-fed WT and UKO mice, and in their liver, adipose tissue, and serum. Lipidomics and RNA-Seq studies were performed in the liver samples of HFD-fed WT and UKO mice. Proteomic studies were conducted to identify Ube4A's targets in metabolism. Furthermore, a mechanism by which Ube4A regulates metabolism was identified. RESULTS Although the body weight and composition of young, chow-fed WT and UKO mice are similar, the knockouts exhibit mild hyperinsulinemia and insulin resistance. HFD feeding substantially augments obesity, hyperinsulinemia, and insulin resistance in both sexes of UKO mice. HFD-fed white and brown adipose tissue depots of UKO mice have increased insulin resistance and inflammation and reduced energy metabolism. Moreover, Ube4A deletion exacerbates hepatic steatosis, inflammation, and liver injury in HFD-fed mice with increased lipid uptake and lipogenesis in hepatocytes. Acute insulin treatment resulted in impaired activation of the insulin effector protein kinase Akt in liver and adipose tissue of chow-fed UKO mice. We identified the Akt activator protein APPL1 as a Ube4A interactor. The K63-linked ubiquitination (K63-Ub) of Akt and APPL1, known to facilitate insulin-induced Akt activation, is impaired in UKO mice. Furthermore, Ube4A K63-ubiquitinates Akt in vitro. CONCLUSION Ube4A is a novel regulator of obesity, insulin resistance, adipose tissue dysfunction and NAFLD, and preventing its downregulation may ameliorate these diseases.
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Affiliation(s)
- Sandip Mukherjee
- Department of Pharmacology and Physiology, Saint Louis University School of Medicine, Saint Louis, MO, 63104, USA
| | - Molee Chakraborty
- Department of Pharmacology and Physiology, Saint Louis University School of Medicine, Saint Louis, MO, 63104, USA
| | - Eliwaza N Msengi
- Department of Pharmacology and Physiology, Saint Louis University School of Medicine, Saint Louis, MO, 63104, USA
| | - Jake Haubner
- Department of Pharmacology and Physiology, Saint Louis University School of Medicine, Saint Louis, MO, 63104, USA
| | - Jinsong Zhang
- Department of Pharmacology and Physiology, Saint Louis University School of Medicine, Saint Louis, MO, 63104, USA
| | - Matthew J Jellinek
- Department of Biochemistry and Molecular Biology, Saint Louis University School of Medicine, Saint Louis, MO, 63104, USA
| | - Haley L Carlson
- Department of Biochemistry and Molecular Biology, Saint Louis University School of Medicine, Saint Louis, MO, 63104, USA
| | - Kelly Pyles
- Department of Biochemistry and Molecular Biology, Saint Louis University School of Medicine, Saint Louis, MO, 63104, USA
| | - Barbara Ulmasov
- Division of Gastroenterology and Hepatology, Saint Louis University School of Medicine, Saint Louis, MO, 63104, USA
| | - Andrew J Lutkewitte
- Division of Geriatrics and Nutritional Science, Washington University School of Medicine, Saint Louis, MO, 63110, USA
| | - Danielle Carpenter
- Department of Pathology, Saint Louis University School of Medicine, Saint Louis, MO, 63104, USA
| | - Kyle S McCommis
- Department of Biochemistry and Molecular Biology, Saint Louis University School of Medicine, Saint Louis, MO, 63104, USA
| | - David A Ford
- Department of Biochemistry and Molecular Biology, Saint Louis University School of Medicine, Saint Louis, MO, 63104, USA
| | - Brian N Finck
- Division of Geriatrics and Nutritional Science, Washington University School of Medicine, Saint Louis, MO, 63110, USA
| | - Brent A Neuschwander-Tetri
- Division of Gastroenterology and Hepatology, Saint Louis University School of Medicine, Saint Louis, MO, 63104, USA
| | - Anutosh Chakraborty
- Department of Pharmacology and Physiology, Saint Louis University School of Medicine, Saint Louis, MO, 63104, USA.
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23
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Zhang Y, Zhu Z, Cao Y, Xiong Z, Duan Y, Lin J, Zhang X, Jiang M, Liu Y, Man W, Jia T, Feng J, Chen Y, Li C, Guo B, Sun D. Rnd3 suppresses endothelial cell pyroptosis in atherosclerosis through regulation of ubiquitination of TRAF6. Clin Transl Med 2023; 13:e1406. [PMID: 37743632 PMCID: PMC10518494 DOI: 10.1002/ctm2.1406] [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: 06/06/2023] [Revised: 08/24/2023] [Accepted: 08/29/2023] [Indexed: 09/26/2023] Open
Abstract
BACKGROUND As the main pathological basis for various cardiovascular and cerebrovascular diseases, atherosclerosis has become one of the leading causes of death and disability worldwide. Emerging evidence has suggested that Rho GTPase Rnd3 plays an indisputable role in cardiovascular diseases, although its function in atherosclerosis remains unclear. Here, we found a significant correlation between Rnd3 and pyroptosis of aortic endothelial cells (ECs). METHODS ApoeKO mice were utilized as a model for atherosclerosis. Endothelium-specific transgenic mice were employed to disrupt the expression level of Rnd3 in vivo. Mechanistic investigation of the impact of Rnd3 on endothelial cell pyroptosis was carried out using liquid chromatography tandem mass spectrometry (LC-MS/MS), co-immunoprecipitation (Co-IP) assays, and molecular docking. RESULTS Evidence from gain-of-function and loss-of-function studies denoted a protective role for Rnd3 against ECs pyroptosis. Downregulation of Rnd3 sensitized ECs to pyroptosis under oxidized low density lipoprotein (oxLDL) challenge and exacerbated atherosclerosis, while overexpression of Rnd3 effectively prevented these effects. LC-MS/MS, Co-IP assay, and molecular docking revealed that Rnd3 negatively regulated pyroptosis signaling by direct interaction with the ring finger domain of tumor necrosis factor receptor-associated factor 6 (TRAF6). This leads to the suppression of K63-linked TRAF6 ubiquitination and the promotion of K48-linked TRAF6 ubiquitination, inhibiting the activation of NF-κB and promoting the degradation of TRAF6. Moreover, TRAF6 knockdown countered Rnd3 knockout-evoked exacerbation of EC pyroptosis in vivo and vitro. CONCLUSIONS These findings establish a critical functional connection between Rnd3 and the TRAF6/NF-κB/NLRP3 signaling pathway in ECs, indicating the essential role of Rnd3 in preventing pyroptosis of ECs.
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Affiliation(s)
- Yan Zhang
- Department of CardiologyXijing Hospital, Fourth Military Medical UniversityXi'anChina
| | - Zhengru Zhu
- Department of OtolaryngologyXijing Hospital, Fourth Military Medical UniversityXi'anChina
| | - Yang Cao
- Department of CardiologyXijing Hospital, Fourth Military Medical UniversityXi'anChina
| | - Zhenyu Xiong
- Department of CardiologyXijing Hospital, Fourth Military Medical UniversityXi'anChina
| | - Yu Duan
- Department of CardiologyXijing Hospital, Fourth Military Medical UniversityXi'anChina
| | - Jie Lin
- Department of CardiologyXijing Hospital, Fourth Military Medical UniversityXi'anChina
| | - Xuebin Zhang
- Department of CardiologyXijing Hospital, Fourth Military Medical UniversityXi'anChina
| | - Mengyuan Jiang
- Department of CardiologyXijing Hospital, Fourth Military Medical UniversityXi'anChina
| | - Yue Liu
- Department of CardiologyXijing Hospital, Fourth Military Medical UniversityXi'anChina
| | - Wanrong Man
- Department of CardiologyXijing Hospital, Fourth Military Medical UniversityXi'anChina
| | - Tengfei Jia
- Department of CardiologyXijing Hospital, Fourth Military Medical UniversityXi'anChina
| | - Jiaxu Feng
- Department of CardiologyXijing Hospital, Fourth Military Medical UniversityXi'anChina
| | - Yanyan Chen
- Department of CardiologyXijing Hospital, Fourth Military Medical UniversityXi'anChina
| | - Congye Li
- Department of CardiologyXijing Hospital, Fourth Military Medical UniversityXi'anChina
| | - Baolin Guo
- Department of CardiologyXijing Hospital, Fourth Military Medical UniversityXi'anChina
| | - Dongdong Sun
- Department of CardiologyXijing Hospital, Fourth Military Medical UniversityXi'anChina
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24
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Kammala AK, Mosebarger A, Radnaa E, Rowlinson E, Vora N, Fortunato SJ, Sharma S, Safarzadeh M, Menon R. Extracellular Vesicles-mediated recombinant IL-10 protects against ascending infection-associated preterm birth by reducing fetal inflammatory response. Front Immunol 2023; 14:1196453. [PMID: 37600782 PMCID: PMC10437065 DOI: 10.3389/fimmu.2023.1196453] [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: 03/29/2023] [Accepted: 07/18/2023] [Indexed: 08/22/2023] Open
Abstract
Background Fetal inflammatory response mediated by the influx of immune cells and activation of pro-inflammatory transcription factor NF-κB in feto-maternal uterine tissues is the major determinant of infection-associated preterm birth (PTB, live births < 37 weeks of gestation). Objective To reduce the incidence of PTB by minimizing inflammation, extracellular vesicles (EVs) were electroporetically engineered to contain anti-inflammatory cytokine interleukin (IL)-10 (eIL-10), and their efficacy was tested in an ascending model of infection (vaginal administration of E. coli) induced PTB in mouse models. Study design EVs (size: 30-170 nm) derived from HEK293T cells were electroporated with recombinant IL-10 at 500 volts and 125 Ω, and 6 pulses to generate eIL-10. eIL-10 structural characters (electron microscopy, nanoparticle tracking analysis, ExoView [size and cargo content] and functional properties (co-treatment of macrophage cells with LPS and eIL-10) were assessed. To test efficacy, CD1 mice were vaginally inoculated with E. coli (1010CFU) and subsequently treated with either PBS, eIL-10 (500ng) or Gentamicin (10mg/kg) or a combination of eIL-10+gentamicin. Fetal inflammatory response in maternal and fetal tissues after the infection or treatment were conducted by suspension Cytometer Time of Flight (CyTOF) using a transgenic mouse model that express red fluorescent TdTomato (mT+) in fetal cells. Results Engineered EVs were structurally and functionally stable and showed reduced proinflammatory cytokine production from LPS challenged macrophage cells in vitro. Maternal administration of eIL-10 (10 µg/kg body weight) crossed feto-maternal barriers to delay E. coli-induced PTB to deliver live pups at term. Delay in PTB was associated with reduced feto-maternal uterine inflammation (immune cell infiltration and histologic chorioamnionitis, NF-κB activation, and proinflammatory cytokine production). Conclusions eIL-10 administration was safe, stable, specific, delayed PTB by over 72 hrs and delivered live pups. The delivery of drugs using EVs overcomes the limitations of in-utero fetal interventions. Protecting IL-10 in EVs eliminates the need for the amniotic administration of recombinant IL-10 for its efficacy.
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Affiliation(s)
- Ananth Kumar Kammala
- Division of Basic Science and Translational Research, Department of Obstetrics & Gynecology, The University of Texas Medical Branch at Galveston, Galveston, TX, United States
| | - Angela Mosebarger
- Division of Basic Science and Translational Research, Department of Obstetrics & Gynecology, The University of Texas Medical Branch at Galveston, Galveston, TX, United States
| | - Enkhtuya Radnaa
- Division of Basic Science and Translational Research, Department of Obstetrics & Gynecology, The University of Texas Medical Branch at Galveston, Galveston, TX, United States
| | - Emma Rowlinson
- Division of Basic Science and Translational Research, Department of Obstetrics & Gynecology, The University of Texas Medical Branch at Galveston, Galveston, TX, United States
| | - Natasha Vora
- Division of Basic Science and Translational Research, Department of Obstetrics & Gynecology, The University of Texas Medical Branch at Galveston, Galveston, TX, United States
| | - Stephen J. Fortunato
- Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Wexner Medical Center, The Ohio State University, Columbus, OH, United States
| | - Surendra Sharma
- Department of Pediatrics, Women & Infants Hospital of Rhode Island, Providence, RI, United States
| | - Melody Safarzadeh
- Division of Basic Science and Translational Research, Department of Obstetrics & Gynecology, The University of Texas Medical Branch at Galveston, Galveston, TX, United States
| | - Ramkumar Menon
- Division of Basic Science and Translational Research, Department of Obstetrics & Gynecology, The University of Texas Medical Branch at Galveston, Galveston, TX, United States
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25
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Li K, Ma L, Lu Z, Yan L, Chen W, Wang B, Xu H, Asemi Z. Apoptosis and heart failure: The role of non-coding RNAs and exosomal non-coding RNAs. Pathol Res Pract 2023; 248:154669. [PMID: 37422971 DOI: 10.1016/j.prp.2023.154669] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 07/01/2023] [Accepted: 07/02/2023] [Indexed: 07/11/2023]
Abstract
Heart failure is a condition that affects the cardio vascular system and occurs if the heart cannot adequately pump the oxygen and blood to the body. Myocardial infarction, reperfusion injury, and this disease is the only a few examples of the numerous cardiovascular illnesses that are impacted by the closely controlled cell deletion process known as apoptosis. Attention has been paid to the creation of alternative diagnostic and treatment modalities for the condition. Recent evidences have shown that some non-coding RNAs (ncRNAs) influence the stability of proteins, control of transcription factors, and HF apoptosis through a variety of methods. Exosomes make a significant paracrine contribution to the regulation of illnesses as well as to the communication between nearby and distant organs. However, it has not yet been determined whether exosomes regulate the cardiomyocyte-tumor cell interaction in ischemia HF to limit the vulnerability of malignancy to ferroptosis. Here, we list the numerous ncRNAs in HF that are connected to apoptosis. In addition, we emphasize the significance of exosomal ncRNAs in the HF.
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Affiliation(s)
- Ketao Li
- Department of cardiology, Shulan (Hangzhou) Hospital Affiliated to Zhejiang Shuren University Shulan International Medical College, Hangzhou, Zhejiang 310022, China
| | - Liping Ma
- Department of cardiology, Shulan (Hangzhou) Hospital Affiliated to Zhejiang Shuren University Shulan International Medical College, Hangzhou, Zhejiang 310022, China
| | - Zhiwei Lu
- Hangzhou Heyunjia Hospital, Hangzhou, Zhe'jiang 310000, China
| | - Laixing Yan
- Department of cardiology, Shulan (Hangzhou) Hospital Affiliated to Zhejiang Shuren University Shulan International Medical College, Hangzhou, Zhejiang 310022, China
| | - Wan Chen
- Department of Cardiology, Jiulongpo First People's Hospital, Chongqing 400051, China
| | - Bing Wang
- Department of cardiology, Zouping People's Hospital, Zouping, Shandong 256299, China
| | - Huiju Xu
- Department of cardiology, Hangzhou Mingzhou Hospital, Hangzhou, Zhe'jiang 311215, China.
| | - Zatollah Asemi
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Islamic Republic of Iran.
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26
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Xu C, Wang P, Guo H, Shao C, Liao B, Gong S, Zhou Y, Yang B, Jiang H, Zhang G, Wu N. MiR-146a-5p deficiency in extracellular vesicles of glioma-associated macrophages promotes epithelial-mesenchymal transition through the NF-κB signaling pathway. Cell Death Discov 2023; 9:206. [PMID: 37391426 DOI: 10.1038/s41420-023-01492-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2022] [Revised: 06/05/2023] [Accepted: 06/15/2023] [Indexed: 07/02/2023] Open
Abstract
Glioma-associated macrophages (GAMs) are pivotal chains in the tumor immune microenvironment (TIME). GAMs mostly display M2-like phenotypes with anti-inflammatory features related to the malignancy and progression of cancers. Extracellular vesicles derived from immunosuppressive GAMs (M2-EVs), the essential components of the TIME, greatly impact the malignant behavior of GBM cells. M1- or M2-EVs were isolated in vitro, and human GBM cell invasion and migration were reinforced under M2-EV treatment. Signatures of the epithelial-mesenchymal transition (EMT) were also enhanced by M2-EVs. Compared with M1-EVs, miR-146a-5p, considered the key factor in TIME regulation, was deficient in M2-EVs according to miRNA-sequencing. When the miR-146a-5p mimic was added, EMT signatures and the invasive and migratory abilities of GBM cells were correspondingly weakened. Public databases predicted the miRNA binding targets and interleukin 1 receptor-associated kinase 1 (IRAK1) and tumor necrosis factor receptor-associated factor 6 (TRAF6) were screened as miR-146a-5p binding genes. Bimolecular fluorescent complementation and coimmunoprecipitation confirmed interactions between TRAF6 and IRAK1. The correlation between TRAF6 and IRAK1 was evaluated with immunofluorescence (IF)-stained clinical glioma samples. The TRAF6-IRAK1 complex is the switch and the brake that modulates IKK complex phosphorylation and NF-κB pathway activation, as well as the EMT behaviors of GBM cells. Furthermore, a homograft nude mouse model was explored and mice transplanted with TRAF6/IRAK1-overexpressing glioma cells had shorter survival times while mice transplanted with glioma cells with miR-146a-5p overexpression or TRAF6/IRAK1 knockdown lived longer. This work indicated that in the TIME of GBM, the deficiency of miR-146a-5p in M2-EVs enhances tumor EMT through disinhibition of the TRAF6-IRAK1 complex and IKK-dependent NF-κB signaling pathway providing a novel therapeutic strategy targeting the TIME of GBM.
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Affiliation(s)
- Chao Xu
- Chongqing Medical University, Chongqing, China
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing, China
- Chongqing School, University of Chinese Academy of Sciences, Chongqing, China
- Department of Neurosurgery, Chongqing General Hospital, Chongqing, China
| | - Pan Wang
- Chongqing Medical University, Chongqing, China
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing, China
- Chongqing School, University of Chinese Academy of Sciences, Chongqing, China
- Department of Neurosurgery, Chongqing General Hospital, Chongqing, China
| | - Haiyan Guo
- Department of Neurosurgery, Chongqing General Hospital, Chongqing, China
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing, China
| | - Chuan Shao
- Chongqing Medical University, Chongqing, China
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing, China
- Chongqing School, University of Chinese Academy of Sciences, Chongqing, China
- Department of Neurosurgery, Chongqing General Hospital, Chongqing, China
| | - Bin Liao
- Chongqing Medical University, Chongqing, China
- Department of Neurosurgery, Chongqing General Hospital, Chongqing, China
| | - Sheng Gong
- Department of Neurosurgery, Chongqing General Hospital, Chongqing, China
| | - Yanghao Zhou
- Department of Neurosurgery, Chongqing General Hospital, Chongqing, China
| | - Bingjie Yang
- Department of Neurosurgery, Chongqing General Hospital, Chongqing, China
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing, China
| | - Haotian Jiang
- Chongqing Medical University, Chongqing, China
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing, China
- Chongqing School, University of Chinese Academy of Sciences, Chongqing, China
- Department of Neurosurgery, Chongqing General Hospital, Chongqing, China
| | - Gang Zhang
- Chongqing Medical University, Chongqing, China
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing, China
- Chongqing School, University of Chinese Academy of Sciences, Chongqing, China
- Department of Neurosurgery, Chongqing General Hospital, Chongqing, China
| | - Nan Wu
- Chongqing Medical University, Chongqing, China.
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing, China.
- Chongqing School, University of Chinese Academy of Sciences, Chongqing, China.
- Department of Neurosurgery, Chongqing General Hospital, Chongqing, China.
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27
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Cheah M, Cheng Y, Petrova V, Cimpean A, Jendelova P, Swarup V, Woolf CJ, Geschwind DH, Fawcett JW. Integrin-Driven Axon Regeneration in the Spinal Cord Activates a Distinctive CNS Regeneration Program. J Neurosci 2023; 43:4775-4794. [PMID: 37277179 PMCID: PMC10312060 DOI: 10.1523/jneurosci.2076-22.2023] [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: 11/06/2022] [Revised: 04/19/2023] [Accepted: 04/21/2023] [Indexed: 06/07/2023] Open
Abstract
The peripheral branch of sensory dorsal root ganglion (DRG) neurons regenerates readily after injury unlike their central branch in the spinal cord. However, extensive regeneration and reconnection of sensory axons in the spinal cord can be driven by the expression of α9 integrin and its activator kindlin-1 (α9k1), which enable axons to interact with tenascin-C. To elucidate the mechanisms and downstream pathways affected by activated integrin expression and central regeneration, we conducted transcriptomic analyses of adult male rat DRG sensory neurons transduced with α9k1, and controls, with and without axotomy of the central branch. Expression of α9k1 without the central axotomy led to upregulation of a known PNS regeneration program, including many genes associated with peripheral nerve regeneration. Coupling α9k1 treatment with dorsal root axotomy led to extensive central axonal regeneration. In addition to the program upregulated by α9k1 expression, regeneration in the spinal cord led to expression of a distinctive CNS regeneration program, including genes associated with ubiquitination, autophagy, endoplasmic reticulum (ER), trafficking, and signaling. Pharmacological inhibition of these processes blocked the regeneration of axons from DRGs and human iPSC-derived sensory neurons, validating their causal contributions to sensory regeneration. This CNS regeneration-associated program showed little correlation with either embryonic development or PNS regeneration programs. Potential transcriptional drivers of this CNS program coupled to regeneration include Mef2a, Runx3, E2f4, and Yy1. Signaling from integrins primes sensory neurons for regeneration, but their axon growth in the CNS is associated with an additional distinctive program that differs from that involved in PNS regeneration.SIGNIFICANCE STATEMENT Restoration of neurologic function after spinal cord injury has yet to be achieved in human patients. To accomplish this, severed nerve fibers must be made to regenerate. Reconstruction of nerve pathways has not been possible, but recently, a method for stimulating long-distance axon regeneration of sensory fibers in rodents has been developed. This research uses profiling of messenger RNAs in the regenerating sensory neurons to discover which mechanisms are activated. This study shows that the regenerating neurons initiate a novel CNS regeneration program which includes molecular transport, autophagy, ubiquitination, and modulation of the endoplasmic reticulum (ER). The study identifies mechanisms that neurons need to activate to regenerate their nerve fibers.
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Affiliation(s)
- Menghon Cheah
- John van Geest Centre for Brain Repair, Department of Clinical Neurosciences, University of Cambridge, Cambridge CB2 0PY, United Kingdom
| | - Yuyan Cheng
- Program in Neurogenetics, Department of Neurology, and Department of Human Genetics, David Geffen School of Medicine, University of California, Los Angeles, California 90095
| | - Veselina Petrova
- Department of Neurobiology, Harvard Medical School; F.M. Kirby Neurobiology Center, Boston Children's Hospital, Boston, Massachusetts 02115
| | - Anda Cimpean
- Centre for Reconstructive Neuroscience, Institute of Experimental Medicine Czech Academy of Science, Prague, Czech Republic
| | - Pavla Jendelova
- Centre for Reconstructive Neuroscience, Institute of Experimental Medicine Czech Academy of Science, Prague, Czech Republic
| | - Vivek Swarup
- Program in Neurogenetics, Department of Neurology, and Department of Human Genetics, David Geffen School of Medicine, University of California, Los Angeles, California 90095
- Department of Neurobiology and Behavior, University of California, Irvine, California 92697
| | - Clifford J Woolf
- Department of Neurobiology, Harvard Medical School; F.M. Kirby Neurobiology Center, Boston Children's Hospital, Boston, Massachusetts 02115
| | - Daniel H Geschwind
- Program in Neurogenetics, Department of Neurology, and Department of Human Genetics, David Geffen School of Medicine, University of California, Los Angeles, California 90095
| | - James W Fawcett
- John van Geest Centre for Brain Repair, Department of Clinical Neurosciences, University of Cambridge, Cambridge CB2 0PY, United Kingdom
- Centre for Reconstructive Neuroscience, Institute of Experimental Medicine Czech Academy of Science, Prague, Czech Republic
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28
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Chen M, Wang K, Han Y, Yan S, Yuan H, Liu Q, Li L, Li N, Zhu H, Lu D, Wang K, Liu F, Luo D, Zhang Y, Jiang J, Li D, Zhang L, Ji H, Zhou H, Chen Y, Qin J, Gao D. Identification of XAF1 as an endogenous AKT inhibitor. Cell Rep 2023; 42:112690. [PMID: 37384528 DOI: 10.1016/j.celrep.2023.112690] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Revised: 04/06/2023] [Accepted: 06/08/2023] [Indexed: 07/01/2023] Open
Abstract
AKT kinase is a key regulator in cell metabolism and survival, and its activation is strictly modulated. Herein, we identify XAF1 (XIAP-associated factor) as a direct interacting protein of AKT1, which strongly binds the N-terminal region of AKT1 to block its K63-linked poly-ubiquitination and subsequent activation. Consistently, Xaf1 knockout causes AKT activation in mouse muscle and fat tissues and reduces body weight gain and insulin resistance induced by high-fat diet. Pathologically, XAF1 expression is low and anti-correlated with the phosphorylated p-T308-AKT signal in prostate cancer samples, and Xaf1 knockout stimulates the p-T308-AKT signal to accelerate spontaneous prostate tumorigenesis in mice with Pten heterozygous loss. And ectopic expression of wild-type XAF1, but not the cancer-derived P277L mutant, inhibits orthotopic tumorigenesis. We further identify Forkhead box O 1 (FOXO1) as a transcriptional regulator of XAF1, thus forming a negative feedback loop between AKT1 and XAF1. These results reveal an important intrinsic regulatory mechanism of AKT signaling.
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Affiliation(s)
- Min Chen
- State Key Laboratory of Cell Biology, Shanghai Institute of Biochemistry and Cell Biology, CAS Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, Shanghai 200031, China
| | - Kangjunjie Wang
- State Key Laboratory of Cell Biology, Shanghai Institute of Biochemistry and Cell Biology, CAS Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, Shanghai 200031, China; Key Laboratory of Systems Health Science of Zhejiang Province, School of Life Science, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, China
| | - Ying Han
- University of Chinese Academy of Sciences, Number 19A Yuquan Road, Beijing 100049, China; CAS Key Laboratory of Tissue Microenvironment and Tumor, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Nutrition and Health, Chinese Academy of Sciences, 320 Yueyang Road, Shanghai 200031, China
| | - Shukun Yan
- University of Chinese Academy of Sciences, Number 19A Yuquan Road, Beijing 100049, China; State Key Laboratory of Molecular Biology, Shanghai Institute of Biochemistry and Cell Biology, CAS Center for Excellence in Molecular Cell Science, National Center for Protein Science Shanghai, 333 Haike Road, Shanghai 201210, China
| | - Huairui Yuan
- CAS Key Laboratory of Tissue Microenvironment and Tumor, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Nutrition and Health, Chinese Academy of Sciences, 320 Yueyang Road, Shanghai 200031, China
| | - Qiuli Liu
- Department of Urology, Institute of Surgery Research, Daping Hospital, Army Medical University, Chongqing 400042, China
| | - Long Li
- State Key Laboratory of Cell Biology, Shanghai Institute of Biochemistry and Cell Biology, CAS Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, Shanghai 200031, China
| | - Ni Li
- CAS Key Laboratory of Tissue Microenvironment and Tumor, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Nutrition and Health, Chinese Academy of Sciences, 320 Yueyang Road, Shanghai 200031, China
| | - Hongwen Zhu
- Department of Analytical Chemistry and CAS Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, China
| | - Dayun Lu
- University of Chinese Academy of Sciences, Number 19A Yuquan Road, Beijing 100049, China; Department of Analytical Chemistry and CAS Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, China
| | - Kaihua Wang
- State Key Laboratory of Cell Biology, Shanghai Institute of Biochemistry and Cell Biology, CAS Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, Shanghai 200031, China; University of Chinese Academy of Sciences, Number 19A Yuquan Road, Beijing 100049, China
| | - Fen Liu
- State Key Laboratory of Cell Biology, Shanghai Institute of Biochemistry and Cell Biology, CAS Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, Shanghai 200031, China; University of Chinese Academy of Sciences, Number 19A Yuquan Road, Beijing 100049, China
| | - Dakui Luo
- Department of Colorectal Surgery, Fudan University Shanghai Cancer Center, Shanghai 200032, China
| | - Yuxue Zhang
- State Key Laboratory of Cell Biology, Shanghai Institute of Biochemistry and Cell Biology, CAS Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, Shanghai 200031, China; University of Chinese Academy of Sciences, Number 19A Yuquan Road, Beijing 100049, China
| | - Jun Jiang
- Department of Urology, Institute of Surgery Research, Daping Hospital, Army Medical University, Chongqing 400042, China
| | - Dali Li
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai, China
| | - Lei Zhang
- State Key Laboratory of Cell Biology, Shanghai Institute of Biochemistry and Cell Biology, CAS Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, Shanghai 200031, China; Key Laboratory of Systems Health Science of Zhejiang Province, School of Life Science, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, China; University of Chinese Academy of Sciences, Number 19A Yuquan Road, Beijing 100049, China
| | - Hongbin Ji
- State Key Laboratory of Cell Biology, Shanghai Institute of Biochemistry and Cell Biology, CAS Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, Shanghai 200031, China; Key Laboratory of Systems Health Science of Zhejiang Province, School of Life Science, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, China; University of Chinese Academy of Sciences, Number 19A Yuquan Road, Beijing 100049, China; School of Life Science and Technology, Shanghai Tech University, 100 Haike Road, Shanghai 201210, China
| | - Hu Zhou
- University of Chinese Academy of Sciences, Number 19A Yuquan Road, Beijing 100049, China; Department of Analytical Chemistry and CAS Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, China
| | - Yong Chen
- Key Laboratory of Systems Health Science of Zhejiang Province, School of Life Science, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, China; University of Chinese Academy of Sciences, Number 19A Yuquan Road, Beijing 100049, China; State Key Laboratory of Molecular Biology, Shanghai Institute of Biochemistry and Cell Biology, CAS Center for Excellence in Molecular Cell Science, National Center for Protein Science Shanghai, 333 Haike Road, Shanghai 201210, China; School of Life Science and Technology, Shanghai Tech University, 100 Haike Road, Shanghai 201210, China.
| | - Jun Qin
- University of Chinese Academy of Sciences, Number 19A Yuquan Road, Beijing 100049, China; CAS Key Laboratory of Tissue Microenvironment and Tumor, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Nutrition and Health, Chinese Academy of Sciences, 320 Yueyang Road, Shanghai 200031, China; Department of Urology, Institute of Surgery Research, Daping Hospital, Army Medical University, Chongqing 400042, China.
| | - Daming Gao
- State Key Laboratory of Cell Biology, Shanghai Institute of Biochemistry and Cell Biology, CAS Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, Shanghai 200031, China; Key Laboratory of Systems Health Science of Zhejiang Province, School of Life Science, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, China; University of Chinese Academy of Sciences, Number 19A Yuquan Road, Beijing 100049, China.
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29
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Huang Y, Zhang W, Yu Z, Su H, Zeng B, Piao J, Wang J, Wu J. A Tumor Suppressive Role of CYLD as a Novel Potential DUB of Aurora B in Cervical Cancer. Clin Med Insights Oncol 2023; 17:11795549231180832. [PMID: 37359274 PMCID: PMC10288423 DOI: 10.1177/11795549231180832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Accepted: 05/23/2023] [Indexed: 06/28/2023] Open
Abstract
Background Cervical cancer is a common leading cause of cancer related to women death worldwide. Cylindromatosis (CYLD) is known as an important tumor suppressor in various human cancers, and a deubiquitination enzyme (DUB) as well. Previously, we identified Skp2 as an E3 ligase of Aurora B ubiquitination, but the DUB of Aurora B still remains unknown. Methods Aurora B ubiquitination site is identified through in vivo ubiquitination assay. Activity of Aurora B and CENPA was detected by immunoblotting (IB) and immunofluorescence (IF) assay. Protein-to-protein interaction was investigated by immunoprecipitation (IP). Cell chromosome dynamics was monitored by live-cell time-lapse Imaging. Cancer cell proliferation, colony formation, apoptosis, and cell invasion and migration assays were also performed. Protein level was checked by immunohistochemical (IHC) staining in clinical cervical cancer samples. Results We identified Lysine 115 (K115) as the main Aurora B ubiquitination site for Skp2. We could also detect an interaction of Aurora B with the DUB CYLD. We found that CYLD promoted deubiquitination of Aurora B, and regulated Aurora B activity and function as well. Compared with control, we found it took more time for the cells to finish cell mitosis with CYLD over-expression. Furthermore, we found that CYLD deficiency promoted cervical cancer cell proliferation, colony formation, cell migration and invasion, and inhibited apoptosis instead, whereas it is just opposite with CYLD over-expression. In clinical cervical cancer samples, we showed a negative correlation of CYLD expression with Aurora B activation and histological cancer cell invasion. Furthermore, there was less CYLD abundance and higher Aurora B activity in advanced cancer samples compared with early stage. Conclusions Our findings uncover CYLD as a novel potential DUB of Aurora B, which inhibits Aurora B activation and its subsequent function in cell mitosis, and also provide more evidence for its tumor suppressor function in cervical cancer.
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Affiliation(s)
- Yufan Huang
- Department of Medical Oncology, Affiliated Cancer Hospital & Cancer Center of Guangzhou Medical University, Guangzhou, China
| | - Wei Zhang
- Department of Clinical Immunology, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Zhihui Yu
- Department of Medical Oncology, Affiliated Cancer Hospital & Cancer Center of Guangzhou Medical University, Guangzhou, China
| | - Hongkai Su
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine and Department of Neurosurgery and Neuro-oncology, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Bin Zeng
- Department of Otorhinolaryngology, The Affiliated Hexian Memorial Hospital of Southern Medical University, Guangzhou, China
| | - Jinsong Piao
- Department of Medical Oncology, Affiliated Cancer Hospital & Cancer Center of Guangzhou Medical University, Guangzhou, China
| | - Jing Wang
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine and Department of Neurosurgery and Neuro-oncology, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Juan Wu
- Department of Medical Oncology, Affiliated Cancer Hospital & Cancer Center of Guangzhou Medical University, Guangzhou, China
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30
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Liu H, Ma H, Zeng X, Wu C, Acharya S, Sudan SK, Zhang X. Ubiquitination of GRK2 Is Required for the β-Arrestin-Biased Signaling Pathway of Dopamine D2 Receptors to Activate ERK Kinases. Int J Mol Sci 2023; 24:10031. [PMID: 37373182 DOI: 10.3390/ijms241210031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2023] [Revised: 06/06/2023] [Accepted: 06/07/2023] [Indexed: 06/29/2023] Open
Abstract
A class-A GPCR dopamine D2 receptor (D2R) plays a critical role in the proper functioning of neuronal circuits through the downstream activation of both G-protein- and β-arrestin-dependent signaling pathways. Understanding the signaling pathways downstream of D2R is critical for developing effective therapies with which to treat dopamine (DA)-related disorders such as Parkinson's disease and schizophrenia. Extensive studies have focused on the regulation of D2R-mediated extracellular-signal-regulated kinase (ERK) 1/2 signaling; however, the manner in which ERKs are activated upon the stimulation of a specific signaling pathway of D2R remains unclear. The present study conducted a variety of experimental techniques, including loss-of-function experiments, site-directed mutagenesis, and the determination of protein interactions, in order to investigate the mechanisms underlying β-arrestin-biased signaling-pathway-mediated ERK activation. We found that the stimulation of the D2R β-arrestin signaling pathway caused Mdm2, an E3 ubiquitin ligase, to move from the nucleus to the cytoplasm and interact with tyrosine phosphorylated G-protein-coupled receptor kinase 2 (GRK2), which was facilitated by Src, a non-receptor tyrosine kinase. This interaction led to the ubiquitination of GRK2, which then moved to the plasma membrane and interacted with activated D2R, followed by the phosphorylation of D2R as well as the mediation of ERK activation. In conclusion, Mdm2-mediated GRK2 ubiquitination, which is selectively triggered by the stimulation of the D2R β-arrestin signaling pathway, is necessary for GRK2 membrane translocation and its interaction with D2R, which in turn mediates downstream ERK signaling. This study is primarily novel and provides essential information with which to better understand the detailed mechanisms of D2R-dependent signaling.
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Affiliation(s)
- Haiping Liu
- School of Pharmaceutical Sciences, Guizhou University, Guiyang 550025, China
| | - Haixiang Ma
- School of Pharmaceutical Sciences, Guizhou University, Guiyang 550025, China
| | - Xingyue Zeng
- School of Pharmaceutical Sciences, Guizhou University, Guiyang 550025, China
| | - Chengyan Wu
- School of Pharmaceutical Sciences, Guizhou University, Guiyang 550025, China
| | - Srijan Acharya
- Mitchell Cancer Institute, School of Medicine, University of South Alabama, Mobile, AL 36604, USA
| | - Sarabjeet Kour Sudan
- Mitchell Cancer Institute, School of Medicine, University of South Alabama, Mobile, AL 36604, USA
| | - Xiaohan Zhang
- School of Pharmaceutical Sciences, Guizhou University, Guiyang 550025, China
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31
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Zou Q, Liu M, Liu K, Zhang Y, North BJ, Wang B. E3 ubiquitin ligases in cancer stem cells: key regulators of cancer hallmarks and novel therapeutic opportunities. Cell Oncol (Dordr) 2023; 46:545-570. [PMID: 36745329 PMCID: PMC10910623 DOI: 10.1007/s13402-023-00777-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/16/2023] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Human malignancies are composed of heterogeneous subpopulations of cancer cells with phenotypic and functional diversity. Among them, a unique subset of cancer stem cells (CSCs) has both the capacity for self-renewal and the potential to differentiate and contribute to multiple tumor properties. As such, CSCs are promising cellular targets for effective cancer therapy. At the molecular level, hyper-activation of multiple stemness regulatory signaling pathways and downstream transcription factors play critical roles in controlling CSCs establishment and maintenance. To regulate CSC properties, these stemness pathways are controlled by post-translational modifications including, but not limited to phosphorylation, acetylation, methylation, and ubiquitination. CONCLUSION In this review, we focus on E3 ubiquitin ligases and their roles and mechanisms in regulating essential hallmarks of CSCs, such as self-renewal, invasion and metastasis, metabolic reprogramming, immune evasion, and therapeutic resistance. Moreover, we discuss emerging therapeutic approaches to eliminate CSCs through targeting E3 ubiquitin ligases by chemical inhibitors and proteolysis-targeting chimera (PROTACs) which are currently under development at the discovery, preclinical, and clinical stages. Several outstanding issues such as roles for E3 ubiquitin ligases in heterogeneity and phenotypical/functional evolution of CSCs remain to be studied under pathologically and clinically relevant conditions. With the rapid application of functional genomic and proteomic approaches at single cell, spatiotemporal, and even single molecule levels, we anticipate that more specific and precise functions of E3 ubiquitin ligases will be delineated in dictating CSC properties. Rational design and proper translation of these mechanistic understandings may lead to novel therapeutic modalities for cancer procession medicine.
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Affiliation(s)
- Qiang Zou
- Department of Hepatobiliary Pancreatic Tumor Center, Chongqing University Cancer Hospital, Chongqing University Medical School, Chongqing, 400030, People's Republic of China
- Department of Gastroenterology & Chongqing Key Laboratory of Digestive Malignancies, Daping Hospital, Army Medical University (Third Military Medical University), 10 Changjiang Branch Road, Yuzhong District, Chongqing, 400042, People's Republic of China
| | - Meng Liu
- Department of Gastroenterology & Chongqing Key Laboratory of Digestive Malignancies, Daping Hospital, Army Medical University (Third Military Medical University), 10 Changjiang Branch Road, Yuzhong District, Chongqing, 400042, People's Republic of China
- Department of Gastroenterology, Chongqing University Cancer Hospital, Chongqing University Medical School, Chongqing, 400030, People's Republic of China
| | - Kewei Liu
- Department of Gastroenterology & Chongqing Key Laboratory of Digestive Malignancies, Daping Hospital, Army Medical University (Third Military Medical University), 10 Changjiang Branch Road, Yuzhong District, Chongqing, 400042, People's Republic of China
| | - Yi Zhang
- Department of Hepatobiliary Pancreatic Tumor Center, Chongqing University Cancer Hospital, Chongqing University Medical School, Chongqing, 400030, People's Republic of China.
| | - Brian J North
- Biomedical Sciences Department, Creighton University School of Medicine, Omaha, NE, 68178, USA.
| | - Bin Wang
- Department of Gastroenterology & Chongqing Key Laboratory of Digestive Malignancies, Daping Hospital, Army Medical University (Third Military Medical University), 10 Changjiang Branch Road, Yuzhong District, Chongqing, 400042, People's Republic of China.
- Institute of Pathology and Southwest Cancer Center, and Key Laboratory of Tumor Immunopathology of Ministry of Education of China, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing, 400038, People's Republic of China.
- Jinfeng Laboratory, Chongqing, 401329, People's Republic of China.
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32
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Lee CS, Hwang G, Nam YW, Hwang CH, Song J. IKK-mediated TRAF6 and RIPK1 interaction stifles cell death complex assembly leading to the suppression of TNF-α-induced cell death. Cell Death Differ 2023; 30:1575-1584. [PMID: 37085671 PMCID: PMC10244383 DOI: 10.1038/s41418-023-01161-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: 07/27/2022] [Revised: 03/27/2023] [Accepted: 03/29/2023] [Indexed: 04/23/2023] Open
Abstract
Tumor necrosis factor α (TNF-α) is a pro-inflammatory cytokine capable of inducing extrinsic apoptosis and necroptosis. Tumor necrosis factor receptor-associated factor 6 (TRAF6), an E3 ligase, is a member of the TRAF family of proteins, which mediates inflammatory signals by activating nuclear factor kappa B (NFкB) and mitogen-activated protein kinase (MAPK). Although the functions of TRAF6 have been identified, its role in TNF-α-induced cell death remains poorly understood. Here, we report that TRAF6 is a negative modulator of TNF-α-induced cell death but does not affect TNF-α-induced NFκB activation. TRAF6 deficiency accelerates both TNF-α-induced apoptosis and necroptosis; however, the acceleration can be reversed by reconstituting TRAF6 or TRAF6C70A, suggesting that E3 ligase activity is not required for this activity. Mechanistically, TRAF6 directly interacts with RIPK1 during TNF-α-induced cell death signaling, which prevents RIPK1 from interacting with components of the cell death complex such as itself, FADD or RIPK3. These processes suppress the assembly of the death complex. Notably, IKK was required for TRAF6 to interact with RIPK1. In vivo, Traf6-/- embryos exhibited higher levels of cell death in the liver but could be rescued by the simultaneous knockout of Tnf. Finally, TRAF6 knockdown xenografts were highly sensitive to necroptotic stimuli. We concluded that TRAF6 suppresses TNF-α-induced cell death in coordination with IKK complexes in vivo and in vitro by suppressing the assembly of cell death complex.
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Affiliation(s)
- Choong-Sil Lee
- Integrated OMICS for Biomedical Science, Yonsei University, Seoul, 03722, Korea
| | - Gyuho Hwang
- Department of Biochemistry, College of Life Science and Biotechnology, Yonsei University, Seoul, 03722, Korea
| | - Young Woo Nam
- Department of Biochemistry, College of Life Science and Biotechnology, Yonsei University, Seoul, 03722, Korea
| | - Chi Hyun Hwang
- Department of Biochemistry, College of Life Science and Biotechnology, Yonsei University, Seoul, 03722, Korea
| | - Jaewhan Song
- Integrated OMICS for Biomedical Science, Yonsei University, Seoul, 03722, Korea.
- Department of Biochemistry, College of Life Science and Biotechnology, Yonsei University, Seoul, 03722, Korea.
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33
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Jia Y, Shen K, Liu J, Li Y, Bai X, Yang Y, He T, Zhang Y, Tong L, Gao X, Zhang Z, Guan H, Hu D. The deacetylation of Akt by SIRT1 inhibits inflammation in macrophages and protects against sepsis. Exp Biol Med (Maywood) 2023; 248:922-935. [PMID: 37211747 PMCID: PMC10525408 DOI: 10.1177/15353702231165707] [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: 06/08/2022] [Accepted: 02/12/2023] [Indexed: 05/23/2023] Open
Abstract
Sepsis is characterized by uncontrolled inflammatory response and altered polarization of macrophages at the early phase. Akt is known to drive macrophage inflammatory response. However, how macrophage inflammatory response is fine-tuned by Akt is poorly understood. Here, we found that Lys14 and Lys20 of Akt is deacetylated by the histone deacetylase SIRT1 during macrophage activation to suppress macrophages inflammatory response. Mechanistically, SIRT1 promotes Akt deacetylation to inhibit the activation of NF-κB and pro-inflammatory cytokines. Loss of SIRT1 facilitates Akt acetylation and thus promotes inflammatory cytokines in mouse macrophages, potentially worsen the progression of sepsis in mice. By contrast, the upregulation of SIRT1 in macrophages further contributes to the inhibition of pro-inflammatory cytokines via Akt activation in sepsis. Taken together, our findings establish Akt deacetylation as an essential negative regulatory mechanism that curtails M1 polarization.
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Affiliation(s)
| | | | | | - Yan Li
- Department of Burns and Cutaneous Surgery, Xijing Hospital, Fourth Military Medical University, Xi’an 710032, China
| | - Xiaozhi Bai
- Department of Burns and Cutaneous Surgery, Xijing Hospital, Fourth Military Medical University, Xi’an 710032, China
| | - Yunshu Yang
- Department of Burns and Cutaneous Surgery, Xijing Hospital, Fourth Military Medical University, Xi’an 710032, China
| | - Ting He
- Department of Burns and Cutaneous Surgery, Xijing Hospital, Fourth Military Medical University, Xi’an 710032, China
| | - Yue Zhang
- Department of Burns and Cutaneous Surgery, Xijing Hospital, Fourth Military Medical University, Xi’an 710032, China
| | - Lin Tong
- Department of Burns and Cutaneous Surgery, Xijing Hospital, Fourth Military Medical University, Xi’an 710032, China
| | - Xiaowen Gao
- Department of Burns and Cutaneous Surgery, Xijing Hospital, Fourth Military Medical University, Xi’an 710032, China
| | - Zhi Zhang
- Department of Burns and Cutaneous Surgery, Xijing Hospital, Fourth Military Medical University, Xi’an 710032, China
| | - Hao Guan
- Department of Burns and Cutaneous Surgery, Xijing Hospital, Fourth Military Medical University, Xi’an 710032, China
| | - Dahai Hu
- Department of Burns and Cutaneous Surgery, Xijing Hospital, Fourth Military Medical University, Xi’an 710032, China
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Zhen H, Huang M, Zheng M, Gao L, Guo Z, Pang Q, Jin G, Zhou Z. WTAP regulates stem cells via TRAF6 to maintain planarian homeostasis and regeneration. Int J Biol Macromol 2023:124932. [PMID: 37268082 DOI: 10.1016/j.ijbiomac.2023.124932] [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: 12/12/2022] [Revised: 04/23/2023] [Accepted: 05/06/2023] [Indexed: 06/04/2023]
Abstract
WTAP, a highly conserved Wilms' tumor 1 interacting protein, is involved in a variety of biological processes. However, functional studies of WTAP in planarians have not been reported. In this study, we examined the spatiotemporal expression pattern of planarian DjWTAP and investigated its functions in planarians regeneration and homeostasis. Knocking-down DjWTAP resulted in severe morphological defects leading to lethality within 20 days. Silencing DjWTAP promoted the proliferation of PiwiA+ cells but impaired the lineage differentiation of epidermal, neural, digestive, and excretory cell types, suggesting a critical role for DjWTAP in stem cell self-renewal and differentiation in planarian. To further investigate the mechanisms underlying the defective differentiation, RNA-seq was employed to determine the transcriptomic alterations upon DjWTAP RNA interference. Histone 4 (H4), Histone-lysine N-methyltransferase-SETMAR like, and TNF receptor-associated factor 6 (TRAF6), were significantly upregulated in response to DjWTAP RNAi. Knocking-down TRAF6 largely rescued the defective tissue homeostasis and regeneration resulted from DjWTAP knockdown in planarians, suggesting that DjWTAP maintains planarian regeneration and homeostasis via TRAF6.
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Affiliation(s)
- Hui Zhen
- Guangdong Cardiovascular Institute, Medical Research Center, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, China
| | - Mujie Huang
- Guangdong Cardiovascular Institute, Medical Research Center, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, China
| | - Mingyue Zheng
- Guangdong Cardiovascular Institute, Medical Research Center, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, China
| | - Lili Gao
- Laboratory of Developmental and Evolutionary Biology, Shandong University of Technology, Zibo, China
| | - Zepeng Guo
- Guangdong Cardiovascular Institute, Medical Research Center, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, China
| | - Qiuxiang Pang
- Laboratory of Developmental and Evolutionary Biology, Shandong University of Technology, Zibo, China.
| | - Guoxiang Jin
- Guangdong Cardiovascular Institute, Medical Research Center, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, China; Guangdong Provincial Geriatrics Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong 510080, China.
| | - Zhongjun Zhou
- Guangdong Cardiovascular Institute, Medical Research Center, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, China; School of Biomedical Sciences, The University of Hong Kong, Hong Kong; Reproductive Medicine Center, The University of Hong Kong-Shenzhen Hospital, Shenzhen, CHINA.
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35
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Liu L, Yin S, Gan W. TRAF6 Promotes PRMT5 Activity in a Ubiquitination-Dependent Manner. Cancers (Basel) 2023; 15:2501. [PMID: 37173967 PMCID: PMC10177089 DOI: 10.3390/cancers15092501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 04/24/2023] [Accepted: 04/25/2023] [Indexed: 05/15/2023] Open
Abstract
Protein arginine methyltransferase 5 (PRMT5) is the primary enzyme generating symmetric dimethylarginine (sDMA) on numerous substrates, through which it regulates many cellular processes, such as transcription and DNA repair. Aberrant expression and activation of PRMT5 is frequently observed in various human cancers and associated with poor prognosis and survival. However, the regulatory mechanisms of PRMT5 remain poorly understood. Here, we report that TRAF6 serves as an upstream E3 ubiquitin ligase to promote PRMT5 ubiquitination and activation. We find that TRAF6 catalyzes K63-linked ubiquitination of PRMT5 and interacts with PRMT5 in a TRAF6-binding-motif-dependent manner. Moreover, we identify six lysine residues located at the N-terminus as the primarily ubiquitinated sites. Disruption of TRAF6-mediated ubiquitination decreases PRMT5 methyltransferase activity towards H4R3 in part by impairing PRMT5 interaction with its co-factor MEP50. As a result, mutating the TRAF6-binding motifs or the six lysine residues significantly suppresses cell proliferation and tumor growth. Lastly, we show that TRAF6 inhibitor enhances cellular sensitivity to PRMT5 inhibitor. Therefore, our study reveals a critical regulatory mechanism of PRMT5 in cancers.
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Affiliation(s)
| | | | - Wenjian Gan
- Department of Biochemistry and Molecular Biology, Medical University of South Carolina, Charleston, SC 29425, USA
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36
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Wang J, Xiang Y, Fan M, Fang S, Hua Q. The Ubiquitin-Proteasome System in Tumor Metabolism. Cancers (Basel) 2023; 15:cancers15082385. [PMID: 37190313 DOI: 10.3390/cancers15082385] [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: 02/01/2023] [Revised: 04/16/2023] [Accepted: 04/17/2023] [Indexed: 05/17/2023] Open
Abstract
Metabolic reprogramming, which is considered a hallmark of cancer, can maintain the homeostasis of the tumor environment and promote the proliferation, survival, and metastasis of cancer cells. For instance, increased glucose uptake and high glucose consumption, known as the "Warburg effect," play an essential part in tumor metabolic reprogramming. In addition, fatty acids are harnessed to satisfy the increased requirement for the phospholipid components of biological membranes and energy. Moreover, the anabolism/catabolism of amino acids, such as glutamine, cystine, and serine, provides nitrogen donors for biosynthesis processes, development of the tumor inflammatory environment, and signal transduction. The ubiquitin-proteasome system (UPS) has been widely reported to be involved in various cellular biological activities. A potential role of UPS in the metabolic regulation of tumor cells has also been reported, but the specific regulatory mechanism has not been elucidated. Here, we review the role of ubiquitination and deubiquitination modification on major metabolic enzymes and important signaling pathways in tumor metabolism to inspire new strategies for the clinical treatment of cancer.
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Affiliation(s)
- Jie Wang
- Department of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Yuandi Xiang
- Department of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Mengqi Fan
- Hubei Key Laboratory of Cell Homeostasis, College of Life Sciences, Wuhan University, Wuhan 430072, China
| | - Shizhen Fang
- Department of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Qingquan Hua
- Department of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan University, Wuhan 430060, China
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37
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Han X, Mei Y, Mishra RK, Bi H, Jain AD, Schiltz GE, Zhao B, Sukhanova M, Wang P, Grigorescu AA, Weber PC, Piwinski JJ, Prado MA, Paulo JA, Stephens L, Anderson KE, Abrams CS, Yang J, Ji P. Targeting pleckstrin-2/Akt signaling reduces proliferation in myeloproliferative neoplasm models. J Clin Invest 2023; 133:159638. [PMID: 36719747 PMCID: PMC10014099 DOI: 10.1172/jci159638] [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: 02/23/2022] [Accepted: 01/25/2023] [Indexed: 02/01/2023] Open
Abstract
Myeloproliferative neoplasms (MPNs) are characterized by the activated JAK2/STAT pathway. Pleckstrin-2 (Plek2) is a downstream target of the JAK2/STAT5 pathway and is overexpressed in patients with MPNs. We previously revealed that Plek2 plays critical roles in the pathogenesis of JAK2-mutated MPNs. The nonessential roles of Plek2 under physiologic conditions make it an ideal target for MPN therapy. Here, we identified first-in-class Plek2 inhibitors through an in silico high-throughput screening approach and cell-based assays, followed by the synthesis of analogs. Plek2-specific small-molecule inhibitors showed potent inhibitory effects on cell proliferation. Mechanistically, Plek2 interacts with and enhances the activity of Akt through the recruitment of downstream effector proteins. The Plek2-signaling complex also includes Hsp72, which protects Akt from degradation. These functions were blocked by Plek2 inhibitors via their direct binding to the Plek2 dishevelled, Egl-10 and pleckstrin (DEP) domain. The role of Plek2 in activating Akt signaling was further confirmed in vivo using a hematopoietic-specific Pten-knockout mouse model. We next tested Plek2 inhibitors alone or in combination with an Akt inhibitor in various MPN mouse models, which showed significant therapeutic efficacies similar to that seen with the genetic depletion of Plek2. The Plek2 inhibitor was also effective in reducing proliferation of CD34-positive cells from MPN patients. Our studies reveal a Plek2/Akt complex that drives cell proliferation and can be targeted by a class of antiproliferative compounds for MPN therapy.
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Affiliation(s)
- Xu Han
- Department of Pathology, Feinberg School of Medicine.,Robert H. Lurie Comprehensive Cancer Center
| | - Yang Mei
- Department of Pathology, Feinberg School of Medicine.,Robert H. Lurie Comprehensive Cancer Center
| | - Rama K Mishra
- Department of Biochemistry and Molecular Genetics, Feinberg School of Medicine
| | - Honghao Bi
- Department of Pathology, Feinberg School of Medicine.,Robert H. Lurie Comprehensive Cancer Center
| | | | - Gary E Schiltz
- Robert H. Lurie Comprehensive Cancer Center.,Department of Chemistry, and.,Department of Pharmacology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA
| | - Baobing Zhao
- Department of Pathology, Feinberg School of Medicine.,Robert H. Lurie Comprehensive Cancer Center
| | - Madina Sukhanova
- Department of Pathology, Feinberg School of Medicine.,Robert H. Lurie Comprehensive Cancer Center
| | - Pan Wang
- Department of Pathology, Feinberg School of Medicine
| | - Arabela A Grigorescu
- Department of Molecular Biosciences, Weinberg College of Arts & Sciences, Northwestern University, Evanston, Illinois, USA
| | | | | | - Miguel A Prado
- Department of Cell Biology, Harvard Medical School, Boston, Massachusetts, USA
| | - Joao A Paulo
- Department of Cell Biology, Harvard Medical School, Boston, Massachusetts, USA
| | - Len Stephens
- Signaling Programme, The Babraham Institute, Cambridge, United Kingdom
| | - Karen E Anderson
- Signaling Programme, The Babraham Institute, Cambridge, United Kingdom
| | - Charles S Abrams
- Department of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Jing Yang
- Department of Pathology, Feinberg School of Medicine.,Robert H. Lurie Comprehensive Cancer Center
| | - Peng Ji
- Department of Pathology, Feinberg School of Medicine.,Robert H. Lurie Comprehensive Cancer Center
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38
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Wu Y, Wang Q, Li M, Lao J, Tang H, Ming S, Wu M, Gong S, Li L, Liu L, Huang X. SLAMF7 regulates the inflammatory response in macrophages during polymicrobial sepsis. J Clin Invest 2023; 133:150224. [PMID: 36749634 PMCID: PMC10014109 DOI: 10.1172/jci150224] [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: 04/14/2021] [Accepted: 01/27/2023] [Indexed: 02/08/2023] Open
Abstract
Uncontrolled inflammation occurred in sepsis results in multiple organ injuries and shock, which contributes to the death of patients with sepsis. However, the regulatory mechanisms that restrict excessive inflammation are still elusive. Here, we identified an Ig-like receptor called signaling lymphocyte activation molecular family 7 (SLAMF7) as a key suppressor of inflammation during sepsis. We found that the expression of SLAMF7 on monocytes/macrophages was significantly elevated in patients with sepsis and in septic mice. SLAMF7 attenuated TLR-dependent MAPK and NF-κB signaling activation in macrophages by cooperating with Src homology 2-containing inositol-5'‑phosphatase 1 (SHIP1). Furthermore, SLAMF7 interacted with SHIP1 and TNF receptor-associated factor 6 (TRAF6) to inhibit K63 ubiquitination of TRAF6. In addition, we found that tyrosine phosphorylation sites within the intracellular domain of SLAMF7 and the phosphatase domain of SHIP1 were indispensable for the interaction between SLAMF7, SHIP1, and TRAF6 and SLAMF7-mediated modulation of cytokine production. Finally, we demonstrated that SLAMF7 protected against lethal sepsis and endotoxemia by downregulating macrophage proinflammatory cytokines and suppressing inflammation-induced organ damage. Taken together, our findings reveal a negative regulatory role of SLAMF7 in polymicrobial sepsis, thus providing sights into the treatment of sepsis.
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Affiliation(s)
- Yongjian Wu
- Center for Infection and Immunity and Guangdong Provincial Key Laboratory of Biomedical Imaging, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, Guangdong Province, China
| | - Qiaohua Wang
- Center for Infection and Immunity and Guangdong Provincial Key Laboratory of Biomedical Imaging, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, Guangdong Province, China
| | - Miao Li
- Scientific Research Center, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, Guangdong Province, China
| | - Juanfeng Lao
- Center for Infection and Immunity and Guangdong Provincial Key Laboratory of Biomedical Imaging, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, Guangdong Province, China
| | - Huishu Tang
- Center for Infection and Immunity and Guangdong Provincial Key Laboratory of Biomedical Imaging, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, Guangdong Province, China
| | - Siqi Ming
- National Clinical Research Center for Infectious Disease, Shenzhen Third People's Hospital, The Second Affiliated Hospital of the Southern University of Science and Technology, Shenzhen, Guangdong Province, China
| | - Minhao Wu
- Center for Infection and Immunity and Guangdong Provincial Key Laboratory of Biomedical Imaging, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, Guangdong Province, China
| | - Sitang Gong
- Department of Gastroenterology, Guangzhou Women and Children's Medical Center, Guangzhou Institute of Pediatrics, Guangzhou Medical University, Guangzhou, Guangdong Province, China
| | - Linhai Li
- The Sixth Affiliated Hospital of Guangzhou Medical University, Qingyuan People's Hospital, Qingyuan, Guangdong Province, China
| | - Lei Liu
- National Clinical Research Center for Infectious Disease, Shenzhen Third People's Hospital, The Second Affiliated Hospital of the Southern University of Science and Technology, Shenzhen, Guangdong Province, China
| | - Xi Huang
- Center for Infection and Immunity and Guangdong Provincial Key Laboratory of Biomedical Imaging, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, Guangdong Province, China.,National Clinical Research Center for Infectious Disease, Shenzhen Third People's Hospital, The Second Affiliated Hospital of the Southern University of Science and Technology, Shenzhen, Guangdong Province, China.,The Sixth Affiliated Hospital of Guangzhou Medical University, Qingyuan People's Hospital, Qingyuan, Guangdong Province, China
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39
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Tufano M, Marrone L, D'Ambrosio C, Di Giacomo V, Urzini S, Xiao Y, Matuozzo M, Scaloni A, Romano MF, Romano S. FKBP51 plays an essential role in Akt ubiquitination that requires Hsp90 and PHLPP. Cell Death Dis 2023; 14:116. [PMID: 36781840 PMCID: PMC9925821 DOI: 10.1038/s41419-023-05629-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 01/28/2023] [Accepted: 01/30/2023] [Indexed: 02/15/2023]
Abstract
FKBP51 plays a relevant role in sustaining cancer cells, particularly melanoma. This cochaperone participates in several signaling pathways. FKBP51 forms a complex with Akt and PHLPP, which is reported to dephosphorylate Akt. Given the recent discovery of a spliced FKBP51 isoform, in this paper, we interrogate the canonical and spliced isoforms in regulation of Akt activation. We show that the TPR domain of FKBP51 mediates Akt ubiquitination at K63, which is an essential step for Akt activation. The spliced FKBP51, lacking such domain, cannot link K63-Ub residues to Akt. Unexpectedly, PHLPP silencing does not foster phosphorylation of Akt, and its overexpression even induces phosphorylation of Akt. PHLPP stabilizes levels of E3-ubiquitin ligase TRAF6 and supports K63-ubiquitination of Akt. The interactome profile of FKBP51 from melanoma cells highlights a relevant role for PHLPP in improving oncogenic hallmarks, particularly, cell proliferation.
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Affiliation(s)
- Martina Tufano
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, 80131, Naples, Italy
| | - Laura Marrone
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, 80131, Naples, Italy
| | - Chiara D'Ambrosio
- Proteomics, Metabolomics and Mass Spectrometry Laboratory Institute for Animal Production Systems in Mediterranean Environments (ISPAAM), National Research Council (CNR), Piazzale Enrico Fermi 1, Portici, 80055, Naples, Italy
| | - Valeria Di Giacomo
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, 80131, Naples, Italy
| | - Simona Urzini
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, 80131, Naples, Italy
| | - Yichuan Xiao
- Chinese Academy of Sciences Key Laboratory of Tissue Microenvironment and Tumor, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Monica Matuozzo
- Proteomics, Metabolomics and Mass Spectrometry Laboratory Institute for Animal Production Systems in Mediterranean Environments (ISPAAM), National Research Council (CNR), Piazzale Enrico Fermi 1, Portici, 80055, Naples, Italy
| | - Andrea Scaloni
- Proteomics, Metabolomics and Mass Spectrometry Laboratory Institute for Animal Production Systems in Mediterranean Environments (ISPAAM), National Research Council (CNR), Piazzale Enrico Fermi 1, Portici, 80055, Naples, Italy
| | - Maria Fiammetta Romano
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, 80131, Naples, Italy.
| | - Simona Romano
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, 80131, Naples, Italy.
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40
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Paccosi E, Balzerano A, Proietti-De-Santis L. Interfering with the Ubiquitin-Mediated Regulation of Akt as a Strategy for Cancer Treatment. Int J Mol Sci 2023; 24:ijms24032809. [PMID: 36769122 PMCID: PMC9917864 DOI: 10.3390/ijms24032809] [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: 12/29/2022] [Revised: 01/26/2023] [Accepted: 01/30/2023] [Indexed: 02/05/2023] Open
Abstract
The serine/threonine kinase Akt modulates the functions of numerous substrates, many of them being involved in cell proliferation and growth, metabolism, angiogenesis, resistance to hypoxia and migration. Akt is frequently deregulated in many types of human cancers, its overexpression or abnormal activation being associated with the increased proliferation and survival of cancer cells. A promising avenue for turning off the functionality of Akt is to either interfere with the K63-linked ubiquitination that is necessary for Akt membrane recruitment and activation or increase the K48-linked polyubiquitination that aims to target Akt to the proteasome for its degradation. Recent evidence indicates that targeting the ubiquitin proteasome system is effective for certain cancer treatments. In this review, the functions and roles of Akt in human cancer will be discussed, with a main focus on molecules and compounds that target various elements of the ubiquitination processes that regulate the activation and inactivation of Akt. Moreover, their possible and attractive implications for cancer therapy will be discussed.
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41
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Jin J, Yang Z, Liu H, Guo M, Chen B, Zhu H, Wang Y, Lin J, Wang S, Chen S. Effects of acupuncture on the miR-146a-mediated IRAK1/TRAF6/NF-κB signaling pathway in rats with sarcopenia induced by D-galactose. ANNALS OF TRANSLATIONAL MEDICINE 2023; 11:47. [PMID: 36819511 PMCID: PMC9929824 DOI: 10.21037/atm-22-6082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Accepted: 01/03/2023] [Indexed: 01/15/2023]
Abstract
Background Sarcopenia during aging is closely linked to sterile, low-grade, chronic inflammation. However, considering the increasingly aging global population, the effectiveness of existing treatments for sarcopenia is not exact, and acupuncture, as an effective anti-inflammatory therapy, has the potential to treat it. Methods Fifty Sprague-Dawley rats were randomly allocated into five groups, including Control group, D-galactose (D-gal) group, D-gal + acupuncture (DA) group, D-gal + non-acupoint (DN) group and D-gal amino acid mixture (DAA) group. An aging rat was model constructed using D-gal for 12 weeks. Rats in the control group received 0.9% physiological saline daily. Treatment groups were acupunctured or given amino acid mixture interventions daily, and lasted for last 4 consecutive weeks. The effects of acupuncture were evaluated by the hematoxylin and eosin staining (H&E), transmission electron microscopic (TEM) examination and terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL) assays. The anti-inflammatory mechanism of acupuncture was studied by using the expressions of microRNA-146a (miR-146a) mediated nuclear factor-kappa B (NF-κB) signaling pathway-related proteins were detected by immunofluorescence, western blotting, quantitative real-time polymerase chain reaction (PCR) and enzyme-linked immunosorbent assay (ELISA). Results Rats injected by D-galactose (D-gal) revealed apparent skeletal muscle atrophy with significantly reduced cross-sectional area and fiber diameter. In contrast, acupuncture treatment alleviated these hallmarks of skeletal muscle atrophy and mitigated the mitochondrial aberrations and skeletal muscle apoptosis in D-gal rats. In addition, acupuncture also downgraded the overexpression of inflammatory factors in skeletal muscle, influenced miR-146a and the target genes level, and inhibited NF-κB nuclear translation in D-gal rats. Conclusions Acupuncture may ameliorate skeletal muscle atrophy, and its effects may be associated with the control of mitochondrial function regulation and the suppression of inflammation.
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Affiliation(s)
- Jing Jin
- College of Rehabilitation Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, China
| | - Zhengyu Yang
- College of Rehabilitation Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, China
| | - Haichao Liu
- College of Rehabilitation Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, China
| | - Mingling Guo
- The School of Health, Fujian Medical University, Fuzhou, China
| | - Borui Chen
- College of Rehabilitation Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, China
| | - Haoming Zhu
- College of Rehabilitation Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, China
| | - Yu Wang
- College of Rehabilitation Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, China
| | - Jianping Lin
- The School of Health, Fujian Medical University, Fuzhou, China
| | - Shizhong Wang
- The School of Health, Fujian Medical University, Fuzhou, China
| | - Shaoqing Chen
- College of Rehabilitation Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, China
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42
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Fan G, Wang F, Chen Y, Zheng Q, Xiong J, Lv Q, Wu K, Xiong J, Wei L, Li D, Zhang J, Zhang W, Li F. The deubiquitinase OTUD1 noncanonically suppresses Akt activation through its N-terminal intrinsically disordered region. Cell Rep 2023; 42:111916. [PMID: 36640312 DOI: 10.1016/j.celrep.2022.111916] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Revised: 11/12/2022] [Accepted: 12/13/2022] [Indexed: 12/29/2022] Open
Abstract
Akt is commonly activated and serves as a valuable target in human cancer. In this study, OTUD1 is identified as an Akt-associated protein and is downregulated upon Akt activation. Ectopic OTUD1 inhibits Akt phosphorylation; however, its deubiquitinase activity contributes only slightly to this effect. A short peptide (OUN-36) located in the OTUD1 N-terminal intrinsically disordered region strongly binds to the Akt PH domain. The residues in the PH domain, which are required for PtdIns(3,4,5)P3 recognition, are also essential for OUN-36 binding. OUN-36 preferentially inhibits Akt-hyperactive tumor cells' proliferation and interferes with Akt cell membrane localization, presumably by disrupting PH domain-PIP3 interaction. Importantly, OUN-36-based therapy efficiently abrogates Akt feedback reactivation in response to MK-2206 treatment and sensitizes cancer cells to chemotherapy and immunotherapy. We therefore show a mechanism by which OTUD1 modulates Akt activity and suggest a potential peptide-based cancer therapeutic strategy implemented by targeting the Akt PH domain.
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Affiliation(s)
- Guanlan Fan
- Department of Gynecology and Obstetrics, Zhongnan Hospital of Wuhan University, Wuhan 430071, China
| | - Fan Wang
- Department of Medical Genetics, School of Basic Medical Sciences, Wuhan University, Wuhan 430071, China
| | - Yurou Chen
- Department of Gynecology and Obstetrics, Zhongnan Hospital of Wuhan University, Wuhan 430071, China
| | - Qian Zheng
- Department of Medical Genetics, School of Basic Medical Sciences, Wuhan University, Wuhan 430071, China
| | - Jie Xiong
- Department of Immunology, School of Basic Medical Sciences, Wuhan University, Wuhan 430071, China
| | - Qiongying Lv
- Department of Gynecology and Obstetrics, Zhongnan Hospital of Wuhan University, Wuhan 430071, China
| | - Kejia Wu
- Department of Gynecology and Obstetrics, Zhongnan Hospital of Wuhan University, Wuhan 430071, China
| | - Jiaqiang Xiong
- Department of Gynecology and Obstetrics, Zhongnan Hospital of Wuhan University, Wuhan 430071, China
| | - Lei Wei
- Department of Pathology and Pathophysiology, School of Basic Medical Sciences, Wuhan University, Wuhan 430071, China
| | - Dongqing Li
- Department of Microbiology, School of Basic Medical Sciences, Wuhan University, Wuhan 430071, China
| | - Jiachen Zhang
- Department of Medical Genetics, School of Basic Medical Sciences, Wuhan University, Wuhan 430071, China
| | - Wei Zhang
- Department of Gynecology and Obstetrics, Zhongnan Hospital of Wuhan University, Wuhan 430071, China.
| | - Feng Li
- Department of Medical Genetics, School of Basic Medical Sciences, Wuhan University, Wuhan 430071, China; Hubei Provincial Key Laboratory of Allergy and Immunology, Wuhan 430071, China.
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Zhu J, Cao K, Zhao M, Ma K, Jiang X, Bai Y, Ling X, Ma J. Improvement of ACK1-targeted therapy efficacy in lung adenocarcinoma using chloroquine or bafilomycin A1. Mol Med 2023; 29:6. [PMID: 36647009 PMCID: PMC9843944 DOI: 10.1186/s10020-023-00602-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Accepted: 01/08/2023] [Indexed: 01/18/2023] Open
Abstract
BACKGROUND Activated Cdc42-associated kinase 1 (ACK1) is a promising druggable target for cancer, but its inhibitors only showed moderate effects in clinical trials. The study aimed to investigate the underlying mechanisms and improve the antitumor efficacy of ACK1 inhibitors. METHODS RNA-seq was performed to determine the downstream pathways of ACK. Using Lasso Cox regression analysis, we built a risk signature with ACK1-related autophagy genes in the lung adenocarcinoma (LUAD) patients from The Cancer Genome Atlas (TCGA) project. The performance of the signature in predicting the tumor immune environment and response to immunotherapy and chemotherapy were assessed in LUAD. CCK8, mRFP-GFP-LC3 assay, western blot, colony formation, wound healing, and transwell migration assays were conducted to evaluate the effects of the ACK1 inhibitor on lung cancer cells. A subcutaneous NSCLC xenograft model was used for in vivo study. RESULTS RNA-seq revealed the regulatory role of ACK1 in autophagy. Furthermore, the risk signature separated LUAD patients into low- and high-risk groups with significantly different prognoses. The two groups displayed different tumor immune environments regarding 28 immune cell subsets. The low-risk groups showed high immune scores, high CTLA4 expression levels, high immunophenoscore, and low DNA mismatch repair capacity, suggesting a better response to immunotherapy. This signature also predicted sensitivity to commonly used chemotherapy and targeted drugs. In vitro, the ACK1 inhibitors (AIM-100 and Dasatinib) appeared to trigger adaptive autophagy-like response to protect lung cancer cells from apoptosis and activated the AMPK/mTOR signaling pathway, partially explaining its moderate antitumor efficacy. However, blocking lysosomal degradation with chloroquine/Bafilamycine A1 or inhibiting AMPK signaling with compound C/shPRKAA1 enhanced the ACK1 inhibitor's cytotoxic effects on lung cancer cells. The efficacy of the combined therapy was also verified using a mouse xenograft model. CONCLUSIONS The resulting signature from ACK1-related autophagy genes robustly predicted survival and drug sensitivity in LUAD. The lysosomal degradation inhibition improved the therapeutic effects of the ACK1 inhibitor, suggesting a potential role for autophagy in therapy evasion.
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Affiliation(s)
- Jinhong Zhu
- grid.412651.50000 0004 1808 3502Department of Clinical Laboratory, Biobank, Harbin Medical University Cancer Hospital, 150 Haping Road, Harbin, 150040 Heilongjiang China
| | - Kui Cao
- grid.412651.50000 0004 1808 3502Department of Thoracic Surgery, Harbin Medical University Cancer Hospital, 150 Haping Road, Harbin, 150040 Heilongjiang China
| | - Meng Zhao
- grid.412651.50000 0004 1808 3502Department of Clinical Laboratory, Biobank, Harbin Medical University Cancer Hospital, 150 Haping Road, Harbin, 150040 Heilongjiang China
| | - Keru Ma
- grid.412651.50000 0004 1808 3502Department of Thoracic Surgery, Harbin Medical University Cancer Hospital, 150 Haping Road, Harbin, 150040 Heilongjiang China
| | - Xiangyu Jiang
- grid.412651.50000 0004 1808 3502Department of Thoracic Surgery, Harbin Medical University Cancer Hospital, 150 Haping Road, Harbin, 150040 Heilongjiang China
| | - Yuwen Bai
- grid.412651.50000 0004 1808 3502Department of Thoracic Surgery, Harbin Medical University Cancer Hospital, 150 Haping Road, Harbin, 150040 Heilongjiang China
| | - Xiaodong Ling
- grid.412651.50000 0004 1808 3502Department of Thoracic Surgery, Harbin Medical University Cancer Hospital, 150 Haping Road, Harbin, 150040 Heilongjiang China
| | - Jianqun Ma
- grid.412651.50000 0004 1808 3502Department of Thoracic Surgery, Harbin Medical University Cancer Hospital, 150 Haping Road, Harbin, 150040 Heilongjiang China
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Wang W, Huang Q, Liao Z, Zhang H, Liu Y, Liu F, Chen X, Zhang B, Chen Y, Zhu P. ALKBH5 prevents hepatocellular carcinoma progression by post-transcriptional inhibition of PAQR4 in an m6A dependent manner. Exp Hematol Oncol 2023; 12:1. [PMID: 36609413 PMCID: PMC9825045 DOI: 10.1186/s40164-022-00370-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2022] [Accepted: 12/30/2022] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND N6-methyladenosine (m6A) is a prevalent modification of mRNA and is known to play important roles in tumorigenesis in many types of cancer. The function of N6-methyladenosine (m6A) RNA methylation depends on a variety of methyltransferases and demethylases. AlkB homolog 5 (ALKBH5) is a demethylase, and its biological function has not been completely explored in HCC. RESULTS ALKBH5 is downregulated and has antitumor effects in HCC cells. In addition, Progestin and AdipoQ Receptor 4 (PAQR4) was identified as a downstream target of ALKBH5 based on transcriptome sequencing and validation studies. We found that ALKBH5 decreases PAQR4 mRNA and protein expression in an N6-methyladenosine (m6A)-dependent manner. The study also showed that ALKBH5 changes PAQR4 expression via the m6A reader IGF2BP1. In both in vivo and in vitro experiments, PAQR4 showed a strong association with the development of HCC. Finally, we found that PAQR4 interacts with AKT and enhances PI3K/AKT pathway activation. CONCLUSIONS ALKBH5 inhibits HCC growth by downregulating PAQR4 expression in an m6A-dependent manner, therefore suppressing PI3K/AKT pathway activation.
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Affiliation(s)
- Weijian Wang
- grid.33199.310000 0004 0368 7223Hepatic Surgery Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030 China ,Hubei Key Laboratory of Hepato-Pancreato-Biliary Diseases, Wuhan, 430030 China
| | - Qibo Huang
- grid.33199.310000 0004 0368 7223Hepatic Surgery Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030 China ,Hubei Key Laboratory of Hepato-Pancreato-Biliary Diseases, Wuhan, 430030 China
| | - Zhibin Liao
- grid.33199.310000 0004 0368 7223Hepatic Surgery Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030 China ,Hubei Key Laboratory of Hepato-Pancreato-Biliary Diseases, Wuhan, 430030 China ,grid.33199.310000 0004 0368 7223Department of General Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030 China
| | - Hongwei Zhang
- grid.33199.310000 0004 0368 7223Hepatic Surgery Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030 China ,Hubei Key Laboratory of Hepato-Pancreato-Biliary Diseases, Wuhan, 430030 China ,grid.33199.310000 0004 0368 7223Department of General Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030 China
| | - Yachong Liu
- grid.33199.310000 0004 0368 7223Hepatic Surgery Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030 China ,Hubei Key Laboratory of Hepato-Pancreato-Biliary Diseases, Wuhan, 430030 China
| | - Furong Liu
- grid.33199.310000 0004 0368 7223Hepatic Surgery Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030 China ,Hubei Key Laboratory of Hepato-Pancreato-Biliary Diseases, Wuhan, 430030 China
| | - Xiaoping Chen
- grid.33199.310000 0004 0368 7223Hepatic Surgery Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030 China ,Hubei Key Laboratory of Hepato-Pancreato-Biliary Diseases, Wuhan, 430030 China ,grid.33199.310000 0004 0368 7223Department of General Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030 China
| | - Bixiang Zhang
- grid.33199.310000 0004 0368 7223Hepatic Surgery Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030 China ,Hubei Key Laboratory of Hepato-Pancreato-Biliary Diseases, Wuhan, 430030 China ,grid.33199.310000 0004 0368 7223Department of General Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030 China
| | - Yan Chen
- grid.33199.310000 0004 0368 7223Hepatic Surgery Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030 China ,Hubei Key Laboratory of Hepato-Pancreato-Biliary Diseases, Wuhan, 430030 China ,grid.33199.310000 0004 0368 7223Department of General Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030 China
| | - Peng Zhu
- grid.33199.310000 0004 0368 7223Hepatic Surgery Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030 China ,Hubei Key Laboratory of Hepato-Pancreato-Biliary Diseases, Wuhan, 430030 China ,grid.33199.310000 0004 0368 7223Department of General Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030 China
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Wang K, Wen D, Xu X, Zhao R, Jiang F, Yuan S, Zhang Y, Gao Y, Li Q. Extracellular matrix stiffness-The central cue for skin fibrosis. Front Mol Biosci 2023; 10:1132353. [PMID: 36968277 PMCID: PMC10031116 DOI: 10.3389/fmolb.2023.1132353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Accepted: 02/20/2023] [Indexed: 03/29/2023] Open
Abstract
Skin fibrosis is a physiopathological process featuring the excessive deposition of extracellular matrix (ECM), which is the main architecture that provides structural support and constitutes the microenvironment for various cellular behaviors. Recently, increasing interest has been drawn to the relationship between the mechanical properties of the ECM and the initiation and modulation of skin fibrosis, with the engagement of a complex network of signaling pathways, the activation of mechanosensitive proteins, and changes in immunoregulation and metabolism. Simultaneous with the progression of skin fibrosis, the stiffness of ECM increases, which in turn perturbs mechanical and humoral homeostasis to drive cell fate toward an outcome that maintains and enhances the fibrosis process, thus forming a pro-fibrotic "positive feedback loop". In this review, we highlighted the central role of the ECM and its dynamic changes at both the molecular and cellular levels in skin fibrosis. We paid special attention to signaling pathways regulated by mechanical cues in ECM remodeling. We also systematically summarized antifibrotic interventions targeting the ECM, hopefully enlightening new strategies for fibrotic diseases.
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Affiliation(s)
- Kang Wang
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Department of Burn and Plastic Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Dongsheng Wen
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xuewen Xu
- Department of Burn and Plastic Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Rui Zhao
- West China School of Medicine, Sichuan University, Chengdu, Sichuan, China
| | - Feipeng Jiang
- West China School of Medicine, Sichuan University, Chengdu, Sichuan, China
| | - Shengqin Yuan
- School of Public Administration, Sichuan University, Chengdu, Sichuan, China
| | - Yifan Zhang
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- *Correspondence: Yifan Zhang, ; Ya Gao, ; Qingfeng Li,
| | - Ya Gao
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- *Correspondence: Yifan Zhang, ; Ya Gao, ; Qingfeng Li,
| | - Qingfeng Li
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- *Correspondence: Yifan Zhang, ; Ya Gao, ; Qingfeng Li,
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Li M, Gao F, Li X, Gan Y, Han S, Yu X, Liu H, Li W. Stabilization of MCL-1 by E3 ligase TRAF4 confers radioresistance. Cell Death Dis 2022; 13:1053. [PMID: 36535926 PMCID: PMC9763423 DOI: 10.1038/s41419-022-05500-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Revised: 12/01/2022] [Accepted: 12/06/2022] [Indexed: 12/23/2022]
Abstract
The E3 ligase TNF receptor-associated factor 4 (TRAF4) is frequently overexpressed and closely related to poor prognosis in human malignancies. However, its effect on carcinogenesis and radiosensitivity in oral squamous cell carcinoma (OSCC) remains unclear. The present study found that TRAF4 was significantly upregulated in primary and relapsed OSCC tumor tissues. Depletion of TRAF4 markedly improved the sensitivity of OSCC cells to irradiation (IR) treatment, showing that tumor cell proliferation, colony formation and xenograft tumor growth were reduced. Mechanistically, IR promoted the interaction between TRAF4 and Akt to induce Akt K63-mediated ubiquitination and activation. TRAF4 knockout inhibited the phosphorylation of Akt and upregulated GSK3β activity, resulting in increased myeloid cell leukemia-1 (MCL-1) S159 phosphorylation, which disrupted the interaction of MCL-1 with Josephin domain containing 1 (JOSD1), and ultimately induced MCL-1 ubiquitination and degradation. Moreover, TRAF4 was positively correlated with MCL-1 in primary and in radiotherapy-treated, relapsed tumor tissues. An MCL-1 inhibitor overcame radioresistance in vitro and in vivo. Altogether, the present findings suggest that TRAF4 confers radioresistance in OSCC by stabilizing MCL-1 through Akt signaling, and that targeting TRAF4 may be a promising therapeutic strategy to overcome radioresistance in OSCC.
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Affiliation(s)
- Ming Li
- grid.431010.7Cell Transplantation and Gene Therapy Institute, The Third Xiangya Hospital of Central South University, Changsha, Hunan 410013 People’s Republic of China ,Changsha Stomatological Hospital, Changsha, Hunan 410004 People’s Republic of China ,grid.488482.a0000 0004 1765 5169School of Stomatology, Hunan University of Chinese Medicine, Changsha, Hunan 410208 People’s Republic of China ,grid.431010.7Department of Radiology, The Third Xiangya Hospital of Central South University, Changsha, Hunan 410013 People’s Republic of China
| | - Feng Gao
- grid.431010.7Cell Transplantation and Gene Therapy Institute, The Third Xiangya Hospital of Central South University, Changsha, Hunan 410013 People’s Republic of China ,grid.431010.7Department of Ultrasonography, The Third Xiangya Hospital of Central South University, Changsha, Hunan 410013 People’s Republic of China
| | - Xiaoying Li
- grid.431010.7Department of Radiology, The Third Xiangya Hospital of Central South University, Changsha, Hunan 410013 People’s Republic of China
| | - Yu Gan
- grid.431010.7Department of Radiology, The Third Xiangya Hospital of Central South University, Changsha, Hunan 410013 People’s Republic of China
| | - Shuangze Han
- grid.431010.7Department of Radiology, The Third Xiangya Hospital of Central South University, Changsha, Hunan 410013 People’s Republic of China ,grid.33199.310000 0004 0368 7223Department of Ultrasound, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022 People’s Republic of China
| | - Xinfang Yu
- grid.431010.7Cell Transplantation and Gene Therapy Institute, The Third Xiangya Hospital of Central South University, Changsha, Hunan 410013 People’s Republic of China ,grid.39382.330000 0001 2160 926XDepartment of Medicine, Baylor College of Medicine, Houston, TX 77030 USA
| | - Haidan Liu
- grid.452708.c0000 0004 1803 0208Department of Cardiovascular Surgery, The Second Xiangya Hospital of Central South University, Changsha, Hunan 410011, People’s Republic of China ,grid.452708.c0000 0004 1803 0208Clinical Center for Gene Diagnosis and Therapy, The Second Xiangya Hospital of Central South University, Changsha, Hunan 410011, People’s Republic of China
| | - Wei Li
- grid.431010.7Cell Transplantation and Gene Therapy Institute, The Third Xiangya Hospital of Central South University, Changsha, Hunan 410013 People’s Republic of China ,grid.431010.7Department of Radiology, The Third Xiangya Hospital of Central South University, Changsha, Hunan 410013 People’s Republic of China
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47
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Levinsky AJ, McEdwards G, Sethna N, Currie MA. Targets of histone H3 lysine 9 methyltransferases. Front Cell Dev Biol 2022; 10:1026406. [PMID: 36568972 PMCID: PMC9768651 DOI: 10.3389/fcell.2022.1026406] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Accepted: 10/05/2022] [Indexed: 12/12/2022] Open
Abstract
Histone H3 lysine 9 di- and trimethylation are well-established marks of constitutively silenced heterochromatin domains found at repetitive DNA elements including pericentromeres, telomeres, and transposons. Loss of heterochromatin at these sites causes genomic instability in the form of aberrant DNA repair, chromosome segregation defects, replication stress, and transposition. H3K9 di- and trimethylation also regulate cell type-specific gene expression during development and form a barrier to cellular reprogramming. However, the role of H3K9 methyltransferases extends beyond histone methylation. There is a growing list of non-histone targets of H3K9 methyltransferases including transcription factors, steroid hormone receptors, histone modifying enzymes, and other chromatin regulatory proteins. Additionally, two classes of H3K9 methyltransferases modulate their own function through automethylation. Here we summarize the structure and function of mammalian H3K9 methyltransferases, their roles in genome regulation and constitutive heterochromatin, as well as the current repertoire of non-histone methylation targets including cases of automethylation.
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Affiliation(s)
- Aidan J. Levinsky
- Department of Biology, University of Toronto Mississauga, Mississauga, ON, Canada,Department of Cell and Systems Biology, University of Toronto, Toronto, ON, Canada
| | - Gregor McEdwards
- Department of Biology, University of Toronto Mississauga, Mississauga, ON, Canada,Department of Cell and Systems Biology, University of Toronto, Toronto, ON, Canada
| | - Nasha Sethna
- Department of Biology, University of Toronto Mississauga, Mississauga, ON, Canada,Department of Cell and Systems Biology, University of Toronto, Toronto, ON, Canada
| | - Mark A. Currie
- Department of Biology, University of Toronto Mississauga, Mississauga, ON, Canada,Department of Cell and Systems Biology, University of Toronto, Toronto, ON, Canada,*Correspondence: Mark A. Currie,
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48
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Gonzalez-Santamarta M, Bouvier C, Rodriguez MS, Xolalpa W. Ubiquitin-chains dynamics and its role regulating crucial cellular processes. Semin Cell Dev Biol 2022; 132:155-170. [PMID: 34895814 DOI: 10.1016/j.semcdb.2021.11.023] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Revised: 11/19/2021] [Accepted: 11/23/2021] [Indexed: 12/15/2022]
Abstract
The proteome adapts to multiple situations occurring along the life of the cell. To face these continuous changes, the cell uses posttranslational modifications (PTMs) to control the localization, association with multiple partners, stability, and activity of protein targets. One of the most dynamic protein involved in PTMs is Ubiquitin (Ub). Together with other members of the same family, known as Ubiquitin-like (UbL) proteins, Ub rebuilds the architecture of a protein in a few minutes to change its properties in a very efficient way. This capacity of Ub and UbL is in part due to their potential to form complex architectures when attached to target proteins or when forming Ub chains. The highly dynamic formation and remodeling of Ub chains is regulated by the action of conjugating and deconjugating enzymes that determine, in due time, the correct chain architecture for a particular cellular function. Chain remodeling occurs in response to physiologic stimuli but also in pathologic situations. Here, we illustrate well-documented cases of chain remodeling during DNA repair, activation of the NF-κB pathway and autophagy, as examples of this dynamic regulation. The crucial role of enzymes and cofactors regulating chain remodeling is discussed.
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Affiliation(s)
- Maria Gonzalez-Santamarta
- Laboratoire de Chimie de Coordination (LCC) - UPR 8241 CNRS, and UMR 152 Pharma-Dev, Université de Toulouse, IRD, UPS, 31400 Toulouse, France.
| | - Corentin Bouvier
- Laboratoire de Chimie de Coordination (LCC) - UPR 8241 CNRS, and UMR 152 Pharma-Dev, Université de Toulouse, IRD, UPS, 31400 Toulouse, France.
| | - Manuel S Rodriguez
- Laboratoire de Chimie de Coordination (LCC) - UPR 8241 CNRS, and UMR 152 Pharma-Dev, Université de Toulouse, IRD, UPS, 31400 Toulouse, France.
| | - Wendy Xolalpa
- Departamento de Ingeniería Celular y Biocatálisis, Instituto de Biotecnología, Universidad Nacional Autónoma de México, 62250 Cuernavaca, Morelos, Mexico.
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Deng T, Hu B, Wang X, Ding S, Lin L, Yan Y, Peng X, Zheng X, Liao M, Jin Y, Dong W, Gu J, Zhou J. TRAF6 autophagic degradation by avibirnavirus VP3 inhibits antiviral innate immunity via blocking NFKB/NF-κB activation. Autophagy 2022; 18:2781-2798. [PMID: 35266845 PMCID: PMC9673932 DOI: 10.1080/15548627.2022.2047384] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Ubiquitination is an important reversible post-translational modification. Many viruses hijack the host ubiquitin system to enhance self-replication. In the present study, we found that Avibirnavirus VP3 protein was ubiquitinated during infection and supported virus replication by ubiquitination. Mass spectrometry and mutation analysis showed that VP3 was ubiquitinated at residues K73, K135, K158, K193, and K219. Virus rescue showed that ubiquitination at sites K73, K193, and K219 on VP3 could enhance the replication abilities of infectious bursal disease virus (IBDV), and that K135 was essential for virus survival. Binding of the zinc finger domain of TRAF6 (TNF receptor associated factor 6) to VP3 mediated K11- and K33-linked ubiquitination of VP3, which promoted its nuclear accumulation to facilitate virus replication. Additionally, VP3 could inhibit TRAF6-mediated NFKB/NF-κB (nuclear factor kappa B) activation and IFNB/IFN-β (interferon beta) production to evade host innate immunity by inducing TRAF6 autophagic degradation in an SQSTM1/p62 (sequestosome 1)-dependent manner. Our findings demonstrated a macroautophagic/autophagic mechanism by which Avibirnavirus protein VP3 blocked NFKB-mediated IFNB production by targeting TRAF6 during virus infection, and provided a potential drug target for virus infection control.Abbreviations: ATG: autophagy related; BafA1: bafilomycin A1; CALCOCO2/NDP52: calcium binding and coiled-coil domain 2; Cas9: CRISPR-associated protein 9; CHX: cycloheximide; Co-IP: co-immunoprecipitation; CRISPR: clustered regularly interspaced short palindromic repeats; GAPDH: glyceraldehyde-3-phosphate dehydrogenase; GST: glutathione S-transferase; IBDV: infectious bursal disease virus; IF: indirect immunofluorescence; IFNB/IFN-β: interferon beta; mAb: monoclonal antibody; MAP1LC3/LC3: microtubule associated protein 1 light chain 3; MOI: multiplicity of infection; MS: mass spectrometry; NFKB/NF-κB: nuclear factor kappa B; NBR1: NBR1 autophagy cargo receptor; OPTN: optineurin; pAb: polyclonal antibody; PRRs: pattern recognition receptors; RNF125: ring finger protein 125; RNF135/Riplet: ring finger protein 135; SQSTM1/p62: sequestosome 1; TAX1BP1: tax1 binding protein1; TCID50: 50% tissue culture infective dose; TRAF3: TNF receptor associated factor 3; TRAF6: TNF receptor associated factor 6; TRIM25: tripartite motif containing 25; Ub: ubiquitin; Wort: wortmannin; WT: wild type.
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Affiliation(s)
- Tingjuan Deng
- MOA Key Laboratory of Animal Virology, Center for Veterinary Sciences, Zhejiang University, Hangzhou, Zhejiang Province, China
| | - Boli Hu
- MOA Key Laboratory of Animal Virology, Center for Veterinary Sciences, Zhejiang University, Hangzhou, Zhejiang Province, China
| | - Xingbo Wang
- MOA Key Laboratory of Animal Virology, Center for Veterinary Sciences, Zhejiang University, Hangzhou, Zhejiang Province, China
| | | | - Lulu Lin
- MOA Key Laboratory of Animal Virology, Center for Veterinary Sciences, Zhejiang University, Hangzhou, Zhejiang Province, China
| | - Yan Yan
- MOA Key Laboratory of Animal Virology, Center for Veterinary Sciences, Zhejiang University, Hangzhou, Zhejiang Province, China
| | - Xiran Peng
- MOA Key Laboratory of Animal Virology, Center for Veterinary Sciences, Zhejiang University, Hangzhou, Zhejiang Province, China
| | - Xiaojuan Zheng
- MOA Key Laboratory of Animal Virology, Center for Veterinary Sciences, Zhejiang University, Hangzhou, Zhejiang Province, China
| | - Min Liao
- MOA Key Laboratory of Animal Virology, Center for Veterinary Sciences, Zhejiang University, Hangzhou, Zhejiang Province, China
| | - Yulan Jin
- MOA Key Laboratory of Animal Virology, Center for Veterinary Sciences, Zhejiang University, Hangzhou, Zhejiang Province, China
| | - Weiren Dong
- MOA Key Laboratory of Animal Virology, Center for Veterinary Sciences, Zhejiang University, Hangzhou, Zhejiang Province, China
| | - Jinyan Gu
- MOA Key Laboratory of Animal Virology, Center for Veterinary Sciences, Zhejiang University, Hangzhou, Zhejiang Province, China
| | - Jiyong Zhou
- MOA Key Laboratory of Animal Virology, Center for Veterinary Sciences, Zhejiang University, Hangzhou, Zhejiang Province, China,Collaborative innovation center and State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, First Affiliated Hospital, Zhejiang University, Hangzhou, Zhejiang Province, China,CONTACT Jiyong Zhou MOA Key Laboratory of Animal Virology, Zhejiang University, 866 Yuhangtang Road, Hangzhou310058, Zhejiang Province, P. R. China
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50
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Ding Y, Xu Y, Fu Y, Zhang H, Zhao L, Fan X. Kruppel-like factor 13 inhibits cell proliferation of gastric cancer by inducing autophagic degradation of β-catenin. Discov Oncol 2022; 13:121. [PMID: 36336731 PMCID: PMC9637683 DOI: 10.1007/s12672-022-00587-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/17/2022] [Accepted: 10/31/2022] [Indexed: 11/08/2022] Open
Abstract
Zinc protein KLF13 is a tumor-suppressive member of Kruppel-like factors family, and yet the effect of KLF13 on gastric cancer has not been reported. Here, we aimed to investigate the role of KLF13 in gastric cancer and explored underlying molecular mechanisms. Firstly, it was found that KLF13 expression was significantly decreased in gastric cancer tissues and cancer cells compared with adjacent normal tissues and normal gastric epithelial cells, respectively. KEGG_Pathway and GO_BP analyses suggested that KLF13 was associated with CELL_CYCLE and CELL_PROLIFERATION. Then, our results further demonstrated that KLF13 could obviously inhibit gastric cancer proliferation and induce cell arrest at G2/M phase. Mechanistically, KLF13 decreased expressions of β-catenin and its target genes, CCND1 and MYC, via triggering autophagic degradation of β-catenin. KLF13 up-regulation facilitated co-localization and binding of β-catenin with autophagy protein p62, and exogenous overexpression of β-catenin or blocking autophagy process appeared to reverse KLF13-induced inhibition of gastric cancer proliferation. Furthermore, KLF13 overexpression promoted the expression of ubiquitin-conjugating enzyme E2, Ubc13 which is responsible for catalyzing the synthesis of 'Lys-63'-linked polyubiquitin chains and increased the binding of β-catenin with E3 ubiquitin ligase, TRAF6. In vivo, KLF13 overexpression also suppressed xenograft tumor growth of gastric cancer and down-regulated expressions of Ki67, β-catenin, Cyclin D1, and c-Myc in tumor tissues. Collectively, these data firstly demonstrated the involvement of KLF13 in inhibiting cell proliferation of gastric cancer through promoting autophagy-dependent degradation of β-catenin, which reinforced the evidence for suppressive roles of KLF13 in human tumors.
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Affiliation(s)
- Youxiang Ding
- Department of Pathology, Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing, 210008, China.
| | - Yuting Xu
- School of Basic Medicine and Clinical Pharmacology, China Pharmaceutical University, Nanjing, 211100, China
| | - Yao Fu
- Department of Pathology, Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing, 210008, China
| | - Heng Zhang
- School of Basic Medicine and Clinical Pharmacology, China Pharmaceutical University, Nanjing, 211100, China
| | - Li Zhao
- School of Basic Medicine and Clinical Pharmacology, China Pharmaceutical University, Nanjing, 211100, China
| | - Xiangshan Fan
- Department of Pathology, Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing, 210008, China.
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