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Mao P, Feng Z, Liu Y, Zhang K, Zhao G, Lei Z, Di T, Zhang H. The Role of Ubiquitination in Osteosarcoma Development and Therapies. Biomolecules 2024; 14:791. [PMID: 39062505 PMCID: PMC11274928 DOI: 10.3390/biom14070791] [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: 04/15/2024] [Revised: 06/20/2024] [Accepted: 06/28/2024] [Indexed: 07/28/2024] Open
Abstract
The ubiquitin-proteasome system (UPS) maintains intracellular protein homeostasis and cellular function by regulating various biological processes. Ubiquitination, a common post-translational modification, plays a crucial role in the regulation of protein degradation, signal transduction, and other physiological and pathological processes, and is involved in the pathogenesis of various cancers, including osteosarcoma. Osteosarcoma, the most common primary malignant bone tumor, is characterized by high metastatic potential and poor prognosis. It is a refractory bone disease, and the main treatment modalities are surgery combined with chemotherapy. Increasing evidence suggests a close association between UPS abnormalities and the progression of osteosarcoma. Due to the complexity and pleiotropy of the ubiquitination system, each step in the ubiquitination process can be targeted by drugs. In recent years, research and development of inhibitors targeting the ubiquitin system have increased gradually, showing great potential for clinical application. This article reviews the role of the ubiquitination system in the development and treatment of osteosarcoma, as well as research progress, with the hope of improving the therapeutic effects and prognosis of osteosarcoma patients by targeting effective molecules in the ubiquitination system.
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Affiliation(s)
- Peng Mao
- Department of Orthopedics, Lanzhou University Second Hospital, Second Clinical School, Lanzhou University, Lanzhou 730030, China
- Key Laboratory of Orthopaedics of Gansu Province, Lanzhou University, Lanzhou 730030, China
| | - Zuxi Feng
- Department of Hematology, Lanzhou University Second Hospital, Lanzhou 730030, China
| | - Yong Liu
- Department of Orthopedics, Lanzhou University Second Hospital, Second Clinical School, Lanzhou University, Lanzhou 730030, China
- Key Laboratory of Orthopaedics of Gansu Province, Lanzhou University, Lanzhou 730030, China
| | - Kai Zhang
- Department of Orthopedics, Lanzhou University Second Hospital, Second Clinical School, Lanzhou University, Lanzhou 730030, China
- Key Laboratory of Orthopaedics of Gansu Province, Lanzhou University, Lanzhou 730030, China
| | - Guanghai Zhao
- Department of Orthopedics, Lanzhou University Second Hospital, Second Clinical School, Lanzhou University, Lanzhou 730030, China
- Key Laboratory of Orthopaedics of Gansu Province, Lanzhou University, Lanzhou 730030, China
| | - Zeyuan Lei
- Department of Orthopedics, Lanzhou University Second Hospital, Second Clinical School, Lanzhou University, Lanzhou 730030, China
- Key Laboratory of Orthopaedics of Gansu Province, Lanzhou University, Lanzhou 730030, China
| | - Tianning Di
- Department of Orthopedics, Lanzhou University Second Hospital, Second Clinical School, Lanzhou University, Lanzhou 730030, China
| | - Haihong Zhang
- Department of Orthopedics, Lanzhou University Second Hospital, Second Clinical School, Lanzhou University, Lanzhou 730030, China
- Key Laboratory of Orthopaedics of Gansu Province, Lanzhou University, Lanzhou 730030, China
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Zhang R, Li S, Schippers K, Li Y, Eimers B, Lavrijsen M, Wang L, Cui G, Chen X, Peppelenbosch MP, Lebbink JH, Smits R. Analysis of Tumor-Associated AXIN1 Missense Mutations Identifies Variants That Activate β-Catenin Signaling. Cancer Res 2024; 84:1443-1459. [PMID: 38359148 PMCID: PMC11063763 DOI: 10.1158/0008-5472.can-23-2268] [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: 08/09/2023] [Revised: 11/14/2023] [Accepted: 02/12/2024] [Indexed: 02/17/2024]
Abstract
AXIN1 is a major component of the β-catenin destruction complex and is frequently mutated in various cancer types, particularly liver cancers. Truncating AXIN1 mutations are recognized to encode a defective protein that leads to β-catenin stabilization, but the functional consequences of missense mutations are not well characterized. Here, we first identified the GSK3β, β-catenin, and RGS/APC interaction domains of AXIN1 that are the most critical for proper β-catenin regulation. Analysis of 80 tumor-associated variants in these domains identified 18 that significantly affected β-catenin signaling. Coimmunoprecipitation experiments revealed that most of them lost binding to the binding partner corresponding to the mutated domain. A comprehensive protein structure analysis predicted the consequences of these mutations, which largely overlapped with the observed effects on β-catenin signaling in functional experiments. The structure analysis also predicted that loss-of-function mutations within the RGS/APC interaction domain either directly affected the interface for APC binding or were located within the hydrophobic core and destabilized the entire structure. In addition, truncated AXIN1 length inversely correlated with the β-catenin regulatory function, with longer proteins retaining more functionality. These analyses suggest that all AXIN1-truncating mutations at least partially affect β-catenin regulation, whereas this is only the case for a subset of missense mutations. Consistently, most colorectal and liver cancers carrying missense variants acquire mutations in other β-catenin regulatory genes such as APC and CTNNB1. These results will aid the functional annotation of AXIN1 mutations identified in large-scale sequencing efforts or in individual patients. SIGNIFICANCE Characterization of 80 tumor-associated missense variants of AXIN1 reveals a subset of 18 mutations that disrupt its β-catenin regulatory function, whereas the majority are passenger mutations.
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Affiliation(s)
- Ruyi Zhang
- Department of Gastroenterology and Hepatology, Erasmus MC Cancer Institute, University Medical Center, Rotterdam, the Netherlands
| | - Shanshan Li
- Department of Gastroenterology and Hepatology, Erasmus MC Cancer Institute, University Medical Center, Rotterdam, the Netherlands
| | - Kelly Schippers
- Department of Gastroenterology and Hepatology, Erasmus MC Cancer Institute, University Medical Center, Rotterdam, the Netherlands
| | - Yunlong Li
- Department of Gastroenterology and Hepatology, Erasmus MC Cancer Institute, University Medical Center, Rotterdam, the Netherlands
| | - Boaz Eimers
- Department of Gastroenterology and Hepatology, Erasmus MC Cancer Institute, University Medical Center, Rotterdam, the Netherlands
| | - Marla Lavrijsen
- Department of Gastroenterology and Hepatology, Erasmus MC Cancer Institute, University Medical Center, Rotterdam, the Netherlands
| | - Ling Wang
- Department of Gastroenterology and Hepatology, Erasmus MC Cancer Institute, University Medical Center, Rotterdam, the Netherlands
| | - Guofei Cui
- Cancer Biology Program, University of Hawaii Cancer Center, Honolulu, Hawaii
| | - Xin Chen
- Cancer Biology Program, University of Hawaii Cancer Center, Honolulu, Hawaii
| | - Maikel P. Peppelenbosch
- Department of Gastroenterology and Hepatology, Erasmus MC Cancer Institute, University Medical Center, Rotterdam, the Netherlands
| | - Joyce H.G. Lebbink
- Department of Molecular Genetics, Oncode Institute, Erasmus MC Cancer Institute, Erasmus University Medical Center, Rotterdam, the Netherlands
- Department of Radiotherapy, Erasmus University Medical Center, Rotterdam, the Netherlands
| | - Ron Smits
- Department of Gastroenterology and Hepatology, Erasmus MC Cancer Institute, University Medical Center, Rotterdam, the Netherlands
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Tsukiyama T. New insights in ubiquitin-dependent Wnt receptor regulation in tumorigenesis. In Vitro Cell Dev Biol Anim 2024; 60:449-465. [PMID: 38383910 PMCID: PMC11126518 DOI: 10.1007/s11626-024-00855-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: 10/24/2023] [Accepted: 01/17/2024] [Indexed: 02/23/2024]
Abstract
Wnt signaling plays a crucial role in embryonic development and homeostasis maintenance. Delicate and sensitive fine-tuning of Wnt signaling based on the proper timings and positions is required to balance cell proliferation and differentiation and maintain individual health. Therefore, homeostasis is broken by tissue hypoplasia or tumor formation once Wnt signal dysregulation disturbs the balance of cell proliferation. The well-known regulatory mechanism of Wnt signaling is the molecular reaction associated with the cytoplasmic accumulation of effector β-catenin. In addition to β-catenin, most Wnt effector proteins are also regulated by ubiquitin-dependent modification, both qualitatively and quantitatively. This review will explain the regulation of the whole Wnt signal in four regulatory phases, as well as the different ubiquitin ligases and the function of deubiquitinating enzymes in each phase. Along with the recent results, the mechanism by which RNF43 negatively regulates the surface expression of Wnt receptors, which has recently been well understood, will be detailed. Many RNF43 mutations have been identified in pancreatic and gastrointestinal cancers and examined for their functional alteration in Wnt signaling. Several mutations facilitate or activate the Wnt signal, reversing the RNF43 tumor suppressor function into an oncogene. RNF43 may simultaneously play different roles in classical multistep tumorigenesis, as both wild-type and mutant RNF43 suppress the p53 pathway. We hope that the knowledge obtained from further research in RNF43 will be applied to cancer treatment in the future despite the fully unclear function of RNF43.
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Affiliation(s)
- Tadasuke Tsukiyama
- Department of Biochemistry, Graduate School of Medicine, Hokkaido University, 15NW7, Kita-Ku, Sapporo, Hokkaido, 060-8638, Japan.
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Rong Z, Zheng K, Chen J, Jin X. The cross talk of ubiquitination and chemotherapy tolerance in colorectal cancer. J Cancer Res Clin Oncol 2024; 150:154. [PMID: 38521878 PMCID: PMC10960765 DOI: 10.1007/s00432-024-05659-9] [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: 09/21/2023] [Accepted: 02/20/2024] [Indexed: 03/25/2024]
Abstract
Ubiquitination, a highly adaptable post-translational modification, plays a pivotal role in maintaining cellular protein homeostasis, encompassing cancer chemoresistance-associated proteins. Recent findings have indicated a potential correlation between perturbations in the ubiquitination process and the emergence of drug resistance in CRC cancer. Consequently, numerous studies have spurred the advancement of compounds specifically designed to target ubiquitinates, offering promising prospects for cancer therapy. In this review, we highlight the role of ubiquitination enzymes associated with chemoresistance to chemotherapy via the Wnt/β-catenin signaling pathway, epithelial-mesenchymal transition (EMT), and cell cycle perturbation. In addition, we summarize the application and role of small compounds that target ubiquitination enzymes for CRC treatment, along with the significance of targeting ubiquitination enzymes as potential cancer therapies.
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Affiliation(s)
- Ze Rong
- Department of Chemoradiotherapy, the Affiliated People's Hospital of Ningbo University, Ningbo, 315040, China.
| | - Kaifeng Zheng
- Department of Chemoradiotherapy, the Affiliated People's Hospital of Ningbo University, Ningbo, 315040, China
| | - Jun Chen
- Department of Chemoradiotherapy, the Affiliated People's Hospital of Ningbo University, Ningbo, 315040, China.
| | - Xiaofeng Jin
- Department of Chemoradiotherapy, the Affiliated People's Hospital of Ningbo University, Ningbo, 315040, China.
- Department of Biochemistry and Molecular Biology, Health Science Center, Ningbo, 315211, China.
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Wu A, Wang X, Zhang F, Yang X, Quan Y, Dong J, Lai Y, Yang D, Sun J, Wang M. YTHDF1 enhances stemness and chemoresistance in triple-negative breast cancer cells by upregulating SIAH2. Mol Carcinog 2024; 63:417-429. [PMID: 37983722 DOI: 10.1002/mc.23661] [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: 06/20/2023] [Revised: 10/12/2023] [Accepted: 11/08/2023] [Indexed: 11/22/2023]
Abstract
Triple-negative breast cancer (TNBC) is the most lethal and aggressive subtype of breast cancer, and chemoresistance is the major determinant of TNBC treatment failure. This study explores the molecular mechanism of TNBC chemoresistance. The Cancer Genome Atlas, breast cancer integrative platform, and GEPIA databases were used to analyze the expression and correlation of YTHDF1 and seven in absentia homology 2 (SIAH2) in breast cancer. Knockdown of YTHDF1 and SIAH2, or overexpression of SIAH2 in vitro and in vivo, was conducted to evaluate the impact of changes in YTHDF1 and SIAH2 expression on TNBC cell proliferation, apoptosis, stemness, drug resistance, and Hippo pathway gene expression. YTHDF1 and SIAH2 were highly expressed in breast cancer patients and TNBC cells. Knockdown of YTHDF1 and SIAH2 significantly inhibited proliferation and stemness and promoted apoptosis and chemosensitivity of TNBC cells. Mechanistically, the knockdown of YTHDF1 inhibited the expression of SIAH2, thereby downregulating the Hippo pathway, which inhibited proliferation and stemness and promoted apoptosis and chemosensitivity of TNBC cells. The current findings revealed the regulatory mechanism of YTHDF1 in TNBC and clarified the role of the YTHDF1/SIAH2 axis in TNBC drug resistance and stemness. This could provide new insights into the vital role of targeting YTHDF1/SIAH2 to suppress drug resistance and stemness in TNBC cells.
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Affiliation(s)
- Anhao Wu
- Department of Mammary Surgery I, The Third Affiliated Hospital of Kunming Medical University (Yunnan Cancer Hospital, Yunnan Cancer Center), Kunming, China
| | - Xi Wang
- Department of Mammary Surgery I, The Third Affiliated Hospital of Kunming Medical University (Yunnan Cancer Hospital, Yunnan Cancer Center), Kunming, China
| | - Fang Zhang
- Department of Tumor 2 Families, Central Hospital of Enshi Tujia and Miao Autonomous Prefecture, Enshi, China
| | - Xin Yang
- Department of Blood Transfusion, The First People's Hospital of Yunnan Province, The Affiliated Hospital of Kunming University of Science and Technology, Kunming, Yunnan, China
| | - Yuhang Quan
- Department of Anesthesiology, The Third Affiliated Hospital of Kunming Medical University (Yunnan Cancer Hospital, Yunnan Cancer Center), Kunming, China
| | - Junyu Dong
- Department of Mammary Surgery I, The Third Affiliated Hospital of Kunming Medical University (Yunnan Cancer Hospital, Yunnan Cancer Center), Kunming, China
| | - Yafang Lai
- Department of Kunming Maternal and Child Health Service Centre, Kunming City Maternal and Child Health Hospital, Kunming, China
| | - Dechun Yang
- Department of Mammary Surgery I, The Third Affiliated Hospital of Kunming Medical University (Yunnan Cancer Hospital, Yunnan Cancer Center), Kunming, China
| | - Jian Sun
- Department of Mammary Surgery I, The Third Affiliated Hospital of Kunming Medical University (Yunnan Cancer Hospital, Yunnan Cancer Center), Kunming, China
| | - Maohua Wang
- Department of Mammary Surgery I, The Third Affiliated Hospital of Kunming Medical University (Yunnan Cancer Hospital, Yunnan Cancer Center), Kunming, China
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Yan M, Su Z, Pang X, Wang H, Dai H, Ning J, Liu S, Sun Q, Song J, Zhao X, Lu D. The CK1ε/SIAH1 axis regulates AXIN1 stability in colorectal cancer cells. Mol Oncol 2024. [PMID: 38419282 DOI: 10.1002/1878-0261.13624] [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: 09/17/2023] [Revised: 01/23/2024] [Accepted: 02/21/2024] [Indexed: 03/02/2024] Open
Abstract
Casein kinase 1ε (CK1ε) and axis inhibitor 1 (AXIN1) are crucial components of the β-catenin destruction complex in canonical Wnt signaling. CK1ε has been shown to interact with AXIN1, but its physiological function and role in tumorigenesis remain unknown. In this study, we found that CK1δ/ε inhibitors significantly enhanced AXIN1 protein level in colorectal cancer (CRC) cells through targeting CK1ε. Mechanistically, CK1ε promoted AXIN1 degradation by the ubiquitin-proteasome pathway by promoting the interaction of E3 ubiquitin-protein ligase SIAH1 with AXIN1. Genetic or pharmacological inhibition of CK1ε and knockdown of SIAH1 downregulated the expression of Wnt/β-catenin-dependent genes, suppressed the viability of CRC cells, and restrained tumorigenesis and progression of CRC in vitro and in vivo. In summary, our results demonstrate that CK1ε exerted its oncogenic role in CRC occurrence and progression by regulating the stability of AXIN1. These findings reveal a novel mechanism by which CK1ε regulates the Wnt/β-catenin signaling pathway and highlight the therapeutic potential of targeting the CK1ε/SIAH1 axis in CRC.
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Affiliation(s)
- Mengfang Yan
- Guangdong Provincial Key Laboratory of Regional Immunity and Disease, International Cancer Center, Marshall Laboratory of Biomedical Engineering, Department of Pharmacology, Shenzhen University Medical School, Shenzhen University, China
- School of Pharmacy, Shenzhen University Medical School, Shenzhen University, China
| | - Zijie Su
- Guangdong Provincial Key Laboratory of Regional Immunity and Disease, International Cancer Center, Marshall Laboratory of Biomedical Engineering, Department of Pharmacology, Shenzhen University Medical School, Shenzhen University, China
- Department of Research, The Affiliated Tumor Hospital of Guangxi Medical University, Nanning, China
| | - Xiaoyi Pang
- Guangdong Provincial Key Laboratory of Regional Immunity and Disease, International Cancer Center, Marshall Laboratory of Biomedical Engineering, Department of Pharmacology, Shenzhen University Medical School, Shenzhen University, China
| | - Hanbin Wang
- Guangdong Provincial Key Laboratory of Regional Immunity and Disease, International Cancer Center, Marshall Laboratory of Biomedical Engineering, Department of Pharmacology, Shenzhen University Medical School, Shenzhen University, China
| | - Han Dai
- Guangdong Provincial Key Laboratory of Regional Immunity and Disease, International Cancer Center, Marshall Laboratory of Biomedical Engineering, Department of Pharmacology, Shenzhen University Medical School, Shenzhen University, China
| | - Jiong Ning
- Guangdong Provincial Key Laboratory of Regional Immunity and Disease, International Cancer Center, Marshall Laboratory of Biomedical Engineering, Department of Pharmacology, Shenzhen University Medical School, Shenzhen University, China
| | - Shanshan Liu
- Guangdong Provincial Key Laboratory of Regional Immunity and Disease, International Cancer Center, Marshall Laboratory of Biomedical Engineering, Department of Pharmacology, Shenzhen University Medical School, Shenzhen University, China
| | - Qi Sun
- Guangdong Provincial Key Laboratory of Regional Immunity and Disease, International Cancer Center, Marshall Laboratory of Biomedical Engineering, Department of Pharmacology, Shenzhen University Medical School, Shenzhen University, China
| | - Jiaxing Song
- Guangdong Provincial Key Laboratory of Regional Immunity and Disease, International Cancer Center, Marshall Laboratory of Biomedical Engineering, Department of Pharmacology, Shenzhen University Medical School, Shenzhen University, China
- Medical Scientific Research Center, Life Sciences Institute, Guangxi Medical University, Nanning, China
| | - Xibao Zhao
- Guangdong Provincial Key Laboratory of Regional Immunity and Disease, International Cancer Center, Marshall Laboratory of Biomedical Engineering, Department of Pharmacology, Shenzhen University Medical School, Shenzhen University, China
| | - Desheng Lu
- Guangdong Provincial Key Laboratory of Regional Immunity and Disease, International Cancer Center, Marshall Laboratory of Biomedical Engineering, Department of Pharmacology, Shenzhen University Medical School, Shenzhen University, China
- School of Pharmacy, Shenzhen University Medical School, Shenzhen University, China
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Liu Q, Wang J, Guo Z, Zhang H, Zhou Y, Wang P, Li T, Lu W, Liu F, Han W. CMTM6 promotes hepatocellular carcinoma progression through stabilizing β-catenin. Cancer Lett 2024; 583:216585. [PMID: 38101607 DOI: 10.1016/j.canlet.2023.216585] [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: 08/04/2023] [Revised: 11/10/2023] [Accepted: 12/04/2023] [Indexed: 12/17/2023]
Abstract
CMTM6, a regulator of PD-L1 stability, has been implicated in the development of various cancers. However, the expression and role of CMTM6 in hepatocellular carcinoma (HCC) remains controversial. Our study revealed a negative correlation between CMTM6 expression and HCC prognosis through bioinformatics analysis and immunofluorescence staining. CMTM6 expression was also positively associated with alpha-fetoprotein (AFP) levels, supporting its potential as a prognostic marker for HCC. Using Cmtm6 knockout mice, we found that Cmtm6 deficiency inhibited HCC formation and cell proliferation in primary liver cancer models induced by DEN and DEN/CCl4. In HCC cell lines, CMTM6 promoted cell proliferation and interacted with β-catenin, stabilizing it by preventing ubiquitination. In conclusion, our study suggested that CMTM6 upregulation promotes HCC cell proliferation through the β-catenin pathway, making it a potential therapeutic target for HCC treatment.
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Affiliation(s)
- Qiyao Liu
- Department of Immunology, School of Basic Medical Sciences, Peking University Health Science Center, NHC Key Laboratory of Medical Immunology (Peking University), Beijing, China; Peking University Center for Human Disease Genomics, Beijing, China, Beijing, China
| | - Jiahui Wang
- Central Laboratory, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Shandong, China
| | - Zixia Guo
- Department of Immunology, School of Basic Medical Sciences, Peking University Health Science Center, NHC Key Laboratory of Medical Immunology (Peking University), Beijing, China; Peking University Center for Human Disease Genomics, Beijing, China, Beijing, China
| | - Hanxiao Zhang
- Department of Immunology, School of Basic Medical Sciences, Peking University Health Science Center, NHC Key Laboratory of Medical Immunology (Peking University), Beijing, China; Peking University Center for Human Disease Genomics, Beijing, China, Beijing, China
| | - Yifan Zhou
- Department of Ophthalmology, Peking University Third Hospital, Beijing, China
| | - Pingzhang Wang
- Department of Immunology, School of Basic Medical Sciences, Peking University Health Science Center, NHC Key Laboratory of Medical Immunology (Peking University), Beijing, China; Peking University Center for Human Disease Genomics, Beijing, China, Beijing, China
| | - Ting Li
- Department of Immunology, School of Basic Medical Sciences, Peking University Health Science Center, NHC Key Laboratory of Medical Immunology (Peking University), Beijing, China; Peking University Center for Human Disease Genomics, Beijing, China, Beijing, China
| | - Wenping Lu
- Faculty of Hepato-Pancreato-Biliary Surgery, First Medical Center, Chinese PLA General Hospital, China.
| | - Fujun Liu
- Central Laboratory, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Shandong, China.
| | - Wenling Han
- Department of Immunology, School of Basic Medical Sciences, Peking University Health Science Center, NHC Key Laboratory of Medical Immunology (Peking University), Beijing, China; Peking University Center for Human Disease Genomics, Beijing, China, Beijing, China.
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Zhong K, Wang X, Zhang H, Chen N, Mai Y, Dai S, Yang L, Chen D, Zhong W. BIRC6 Modulates the Protein Stability of Axin to Regulate the Growth, Stemness, and Resistance of Renal Cancer Cells via the β-Catenin Pathway. ACS OMEGA 2024; 9:7782-7792. [PMID: 38405482 PMCID: PMC10882609 DOI: 10.1021/acsomega.3c07265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Revised: 01/18/2024] [Accepted: 01/24/2024] [Indexed: 02/27/2024]
Abstract
The mechanism underlying the development of renal cell carcinoma (RCC) remains unclear, and effective prevention and therapeutic measures are lacking. BIRC6, a protein inhibitor of apoptosis, has attracted great interest. Our data indicated that overexpression of BIRC6 elevated cell growth, colony formation, migration, and invasion of cultured RCC cells, while siRNA knockdown of BIRC6 suppressed these processes. Additionally, BIRC6 was highly expressed in RCC clinical samples along with a downregulated level of Axin. Immunoprecipitation assays found that BIRC6 interacted with Axin and the two proteins colocalized within the cytoplasm of RCC cells. Overexpression of BIRC6 promoted the ubiquitination modification of Axin, while genetic knockdown of BIRC6 suppressed it. Furthermore, overexpression of BIRC6 significantly promoted the turnover of Axin, suggesting BIRC6's inhibitory effect on Axin protein stability. BIRC6 was also upregulated in cancer stem-like cells of RCC and increased the drug resistance of RCC cells against sunitinib. Western blotting assays showed that the overexpression of BIRC6 upregulated CXCR4 protein expression and activated the β-catenin pathway. Two cell lines were then constructed with BIRC6 overexpressed by lentiviruses. Pharmacological administration of a Wnt/β-catenin inhibitor, XAV-939, or genetic knockdown of β-catenin inhibited cell growth, tumor sphere formation, colony formation, migration, and invasion of BIRC6-overexpressed cells. In vivo administration of XAV-939 markedly suppressed the tumorigenesis of BIRC6-overexpressed RCC cells in nude mice. In conclusion, we propose that BIRC6 activates the β-catenin signaling pathway via mediating the ubiquitination and degradation of Axin, promoting the growth, stemness, and drug resistance of RCC cells. This project aims to elucidate the role of BIRC6 as a potential therapeutic target and provide new insights into the clinical treatment of RCC.
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Affiliation(s)
- Kaihua Zhong
- Department of Urology, Meizhou People's Hospital, Meizhou 514031, China
| | - Xiaohong Wang
- Department of Nephrology, Third Affiliated Hospital of Southern Medical University, Guangzhou 510500, China
| | - Heyuan Zhang
- Department of Urology, Meizhou People's Hospital, Meizhou 514031, China
| | - Nanhui Chen
- Department of Urology, Meizhou People's Hospital, Meizhou 514031, China
| | - Yang Mai
- Department of Urology, Guangzhou Twelfth People's Hospital, Guangzhou 510630, China
| | - Sipin Dai
- Department of Urology, Guangzhou Twelfth People's Hospital, Guangzhou 510630, China
| | - Lawei Yang
- Clinical Research Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang 524001, China
| | - Dong Chen
- Sun Yat-sen Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Guangzhou 510060, China
| | - Weifeng Zhong
- Department of Urology, Meizhou People's Hospital, Meizhou 514031, China
- Department of Urology, Guangzhou Twelfth People's Hospital, Guangzhou 510630, China
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9
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Zhang L, Gao H, Li X, Yu F, Li P. The important regulatory roles of circRNA‑encoded proteins or peptides in cancer pathogenesis (Review). Int J Oncol 2024; 64:19. [PMID: 38186313 PMCID: PMC10783939 DOI: 10.3892/ijo.2023.5607] [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: 09/26/2023] [Accepted: 12/13/2023] [Indexed: 01/09/2024] Open
Abstract
Circular RNAs (circRNAs) represent a class of RNA molecules characterized by their covalently closed structures. There are three types of circRNAs, namely exonic circRNAs, exon‑intron circRNAs and circular intronic RNAs. To date, four distinct mechanisms have been unveiled through which circRNAs exert their functional influence, including serving as microRNA (miRNA) sponges, interacting with RNA binding proteins (RBPs), modulating parental gene transcription and acting as templates for translation. Of note, among these mechanisms, the miRNA/RBP sponge function has been the most investigated one. Recent research has uncovered the presence of various proteins or peptides encoded by circRNA. CircRNAs are translated independent of the 5' cap and 3' polyA tail, which are typical elements for linear RNA translation. Some unique elements, such as internal ribosome entry sites and N‑methyladenosine modifications, facilitate the initiation of translation. These circRNA‑encoded proteins or peptides participate in diverse signalling pathways and act as important regulators in carcinogenesis by influencing cell proliferation, migration, apoptosis and other key processes. Consequently, circRNA‑encoded proteins or peptides have great potential as therapeutic targets for anticancer drugs. The present comprehensive review aimed to systematically summarize the current understanding of circRNA‑encoded proteins or peptides and to unveil their roles in carcinogenesis.
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Affiliation(s)
- Lei Zhang
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, Shandong 266021, P.R. China
| | - Huijuan Gao
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, Shandong 266021, P.R. China
| | - Xin Li
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, Shandong 266021, P.R. China
| | - Fei Yu
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, Shandong 266021, P.R. China
| | - Peifeng Li
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, Shandong 266021, P.R. China
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Qiu L, Sun Y, Ning H, Chen G, Zhao W, Gao Y. The scaffold protein AXIN1: gene ontology, signal network, and physiological function. Cell Commun Signal 2024; 22:77. [PMID: 38291457 PMCID: PMC10826278 DOI: 10.1186/s12964-024-01482-4] [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: 10/23/2023] [Accepted: 01/06/2024] [Indexed: 02/01/2024] Open
Abstract
AXIN1, has been initially identified as a prominent antagonist within the WNT/β-catenin signaling pathway, and subsequently unveiled its integral involvement across a diverse spectrum of signaling cascades. These encompass the WNT/β-catenin, Hippo, TGFβ, AMPK, mTOR, MAPK, and antioxidant signaling pathways. The versatile engagement of AXIN1 underscores its pivotal role in the modulation of developmental biological signaling, maintenance of metabolic homeostasis, and coordination of cellular stress responses. The multifaceted functionalities of AXIN1 render it as a compelling candidate for targeted intervention in the realms of degenerative pathologies, systemic metabolic disorders, cancer therapeutics, and anti-aging strategies. This review provides an intricate exploration of the mechanisms governing mammalian AXIN1 gene expression and protein turnover since its initial discovery, while also elucidating its significance in the regulation of signaling pathways, tissue development, and carcinogenesis. Furthermore, we have introduced the innovative concept of the AXIN1-Associated Phosphokinase Complex (AAPC), where the scaffold protein AXIN1 assumes a pivotal role in orchestrating site-specific phosphorylation modifications through interactions with various phosphokinases and their respective substrates.
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Affiliation(s)
- Lu Qiu
- School of Pharmaceutical Sciences (Shenzhen), Shenzhen Campus of Sun Yat-Sen University, Shenzhen, 518107, China
- School of Life Sciences, Zhengzhou University, Zhengzhou, 450001, China
| | - Yixuan Sun
- School of Pharmaceutical Sciences (Shenzhen), Shenzhen Campus of Sun Yat-Sen University, Shenzhen, 518107, China
| | - Haoming Ning
- School of Pharmaceutical Sciences (Shenzhen), Shenzhen Campus of Sun Yat-Sen University, Shenzhen, 518107, China
| | - Guanyu Chen
- School of Pharmaceutical Sciences (Shenzhen), Shenzhen Campus of Sun Yat-Sen University, Shenzhen, 518107, China
| | - Wenshan Zhao
- School of Life Sciences, Zhengzhou University, Zhengzhou, 450001, China.
| | - Yanfeng Gao
- School of Pharmaceutical Sciences (Shenzhen), Shenzhen Campus of Sun Yat-Sen University, Shenzhen, 518107, China.
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11
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Tan L, Yan M, Su Z, Wang H, Li H, Zhao X, Liu S, Zhang L, Sun Q, Lu D. R-spondin-1 induces Axin degradation via the LRP6-CK1ε axis. Cell Commun Signal 2024; 22:14. [PMID: 38183076 PMCID: PMC10768284 DOI: 10.1186/s12964-023-01456-y] [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: 08/09/2023] [Accepted: 12/21/2023] [Indexed: 01/07/2024] Open
Abstract
R-spondins (RSPOs) are secreted signaling molecules that potentiate the Wnt/β-catenin pathway by cooperating with Wnt ligands. RSPO1 is crucial in tissue development and tissue homeostasis. However, the molecular mechanism by which RSPOs activate Wnt/β-catenin signaling remains elusive. In this study, we found that RSPOs could mediate the degradation of Axin through the ubiquitin-proteasome pathway. The results of Co-IP showed that the recombinant RSPO1 protein promoted the interaction between Axin1 and CK1ε. Either knockout of the CK1ε gene or treatment with the CK1δ/CK1ε inhibitor SR3029 caused an increase in Axin1 protein levels and attenuated RSPO1-induced degradation of the Axin1 protein. Moreover, we observed an increase in the number of associations of LRP6 with CK1ε and Axin1 following RSPO1 stimulation. Overexpression of LRP6 further potentiated Axin1 degradation mediated by RSPO1 or CK1ε. In addition, recombinant RSPO1 and Wnt3A proteins synergistically downregulated the protein expression of Axin1 and enhanced the transcriptional activity of the SuperTOPFlash reporter. Taken together, these results uncover the novel mechanism by which RSPOs activate Wnt/β-catenin signaling through LRP6/CK1ε-mediated degradation of Axin.
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Affiliation(s)
- Lifeng Tan
- Guangdong Provincial Key Laboratory of Regional Immunity and Disease, International Cancer Center, Marshall Laboratory of Biomedical Engineering, Department of Pharmacology, Shenzhen University Medical School, Shenzhen University, Shenzhen, 518055, Guangdong, China
| | - Mengfang Yan
- Guangdong Provincial Key Laboratory of Regional Immunity and Disease, International Cancer Center, Marshall Laboratory of Biomedical Engineering, Department of Pharmacology, Shenzhen University Medical School, Shenzhen University, Shenzhen, 518055, Guangdong, China
| | - Zijie Su
- Guangdong Provincial Key Laboratory of Regional Immunity and Disease, International Cancer Center, Marshall Laboratory of Biomedical Engineering, Department of Pharmacology, Shenzhen University Medical School, Shenzhen University, Shenzhen, 518055, Guangdong, China
- Department of Research, The Affiliated Tumor Hospital of Guangxi Medical University, Nanning, 530021, China
| | - Hanbin Wang
- Guangdong Provincial Key Laboratory of Regional Immunity and Disease, International Cancer Center, Marshall Laboratory of Biomedical Engineering, Department of Pharmacology, Shenzhen University Medical School, Shenzhen University, Shenzhen, 518055, Guangdong, China
| | - Huan Li
- Guangdong Provincial Key Laboratory of Regional Immunity and Disease, International Cancer Center, Marshall Laboratory of Biomedical Engineering, Department of Pharmacology, Shenzhen University Medical School, Shenzhen University, Shenzhen, 518055, Guangdong, China
| | - Xibao Zhao
- Guangdong Provincial Key Laboratory of Regional Immunity and Disease, International Cancer Center, Marshall Laboratory of Biomedical Engineering, Department of Pharmacology, Shenzhen University Medical School, Shenzhen University, Shenzhen, 518055, Guangdong, China
| | - Shanshan Liu
- Guangdong Provincial Key Laboratory of Regional Immunity and Disease, International Cancer Center, Marshall Laboratory of Biomedical Engineering, Department of Pharmacology, Shenzhen University Medical School, Shenzhen University, Shenzhen, 518055, Guangdong, China
| | - Long Zhang
- MOE Laboratory of Biosystems Homeostasis & Protection and Innovation Center for Cell Signaling Network, Life Sciences Institute, Zhejiang University, Hangzhou, 310058, China
| | - Qi Sun
- Guangdong Provincial Key Laboratory of Regional Immunity and Disease, International Cancer Center, Marshall Laboratory of Biomedical Engineering, Department of Pharmacology, Shenzhen University Medical School, Shenzhen University, Shenzhen, 518055, Guangdong, China.
| | - Desheng Lu
- Guangdong Provincial Key Laboratory of Regional Immunity and Disease, International Cancer Center, Marshall Laboratory of Biomedical Engineering, Department of Pharmacology, Shenzhen University Medical School, Shenzhen University, Shenzhen, 518055, Guangdong, China.
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12
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Cheng LZ, Huang DL, Tang ZR, Zhang JH, Xiong T, Zhou C, Zhang NX, Fu R, Cheng YX, Wu ZQ. Pharmacological targeting of Axin2 suppresses cell growth and metastasis in colorectal cancer. Br J Pharmacol 2023; 180:3071-3091. [PMID: 37461816 DOI: 10.1111/bph.16193] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Revised: 04/26/2023] [Accepted: 07/02/2023] [Indexed: 08/20/2023] Open
Abstract
BACKGROUND AND PURPOSE The scaffold molecule Axin2 is constitutively activated in colorectal cancer (CRC) and functions as a potent promoter of CRC behaviour. Pharmacological targeting of Axin2 may therefore exert a therapeutic effect in patients with CRC. Here, we discovered a potent small-molecule inhibitor of Axin2, based on the mechanism by which Axin2 is regulated post-translationally, and investigated its antitumour effects. EXPERIMENTAL APPROACH Compound discovery and its inhibitory action on Axin2 protein were revealed by microscale thermophoresis, in vitro kinase assay, quantitative kinetic assay, immunoblotting/immunoprecipitation, RT-qPCR and cycloheximide pulse-chase assay. Compound antitumour effects and the underlying mechanisms were evaluated in multiple cell-based assays and mouse models. KEY RESULTS We discovered that glycogen synthase kinase 3β (GSK3β) phosphorylates Axin2 at two consensus motifs and coupled Axin2 phosphorylation to its ubiquitination (mediated by the E3 ligase β-Trcp2) and proteasomal degradation. The binding of Axin2 to GSK3β in CRC cells is faint, which enables most of the Axin2 protein to maintain an unphosphorylated status and thereby permits the cells to preserve high levels of Axin2. Importantly, we identified a small-molecule compound CW85319 that enhances Axin2's interaction with GSK3β via forming a high affinity for Axin2. Treatment of CRC cells with CW85319 enhanced Axin2 binding with GSK3β, thereby promoting Axin2 phosphorylation, subsequent ubiquitination, and degradation. Furthermore, we demonstrated that CW85319 efficiently suppressed Axin2-driven CRC growth and metastasis, without eliciting side toxicity. CONCLUSIONS AND IMPLICATIONS These findings suggest that pharmacological targeting of Axin2 by CW85319 may provide therapeutic benefits against certain human cancers, especially CRC.
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Affiliation(s)
- Li-Zhi Cheng
- State Key Laboratory of Natural Medicines, Department of Pharmacology, School of Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Dan-Ling Huang
- Institute for Inheritance-Based Innovation of Chinese Medicine, School of Pharmaceutical Sciences, Shenzhen University Health Science Center, Shenzhen, China
| | - Zhang-Rui Tang
- State Key Laboratory of Natural Medicines, Department of Pharmacology, School of Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Jia-Hao Zhang
- State Key Laboratory of Natural Medicines, Department of Pharmacology, School of Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Ting Xiong
- State Key Laboratory of Natural Medicines, Department of Pharmacology, School of Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Chen Zhou
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China
| | - Nai-Xia Zhang
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China
| | - Rong Fu
- State Key Laboratory of Natural Medicines, Department of Pharmacology, School of Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Yong-Xian Cheng
- Institute for Inheritance-Based Innovation of Chinese Medicine, School of Pharmaceutical Sciences, Shenzhen University Health Science Center, Shenzhen, China
| | - Zhao-Qiu Wu
- State Key Laboratory of Natural Medicines, Department of Pharmacology, School of Pharmacy, China Pharmaceutical University, Nanjing, China
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13
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Wang Y, Mao A, Liu J, Li P, Zheng S, Tong T, Li Z, Zhang H, Ma L, Lin J, Pang Z, Han Q, Qi F, Zhang X, Chen M, He X, Zhang X, Fei T, Liu BF, Gao D, Cao L, Wang Q, Li Y, Sheng R. USP10 strikes down β-catenin by dual-wielding deubiquitinase activity and phase separation potential. Cell Chem Biol 2023; 30:1436-1452.e10. [PMID: 37611590 DOI: 10.1016/j.chembiol.2023.07.016] [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: 02/10/2023] [Revised: 05/17/2023] [Accepted: 07/30/2023] [Indexed: 08/25/2023]
Abstract
Wnt/β-catenin signaling is a conserved pathway crucially governing development, homeostasis, and oncogenesis. Discoveries of its regulators hold great values in both basic and translational research. Through screening, we identified a deubiquitinase, USP10, as a critical modulator of β-catenin. Mechanistically, USP10 binds to key scaffold Axin1 via conserved motifs and stabilizes Axin1 through K48-linked deubiquitination. Surprisingly, USP10 physically tethers Axin1 and β-catenin and promotes the phase separation for β-catenin suppression regardless of the enzymatic activity. Function-wise, USP10 enzymatic activity preferably regulates embryonic development and both the enzymatic activity and physical function jointly control intestinal homeostasis by antagonizing β-catenin. In colorectal cancer, USP10 substantially represses cancer growth mainly through physical promotion of phase separation and correlates with Wnt/β-catenin magnitude clinically. Collectively, we discovered USP10 functioning in multiple biological processes against β-catenin and unearthed the enzyme-dependent and -independent "dual-regulating" mechanism. These two functions of USP10 work in parallel and are context dependent.
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Affiliation(s)
- Yinuo Wang
- College of Life and Health Science, Northeastern University, Shenyang 110819, China
| | - Aihua Mao
- Division of Cell, Developmental and Integrative Biology, School of Medicine, South China University of Technology, Guangzhou 510006, China; Guangdong Provincial Key Laboratory of Marine Biotechnology, Institute of Marine Sciences, Shantou University, Shantou, Guangdong 515063, China
| | - Jingwei Liu
- College of Basic Medical Science, China Medical University, Shenyang 110122, China
| | - Pengjie Li
- Key Laboratory for Biomedical Photonics of MOE at Wuhan National Laboratory for Optoelectronics - Hubei Bioinformatics and Molecular Imaging Key Laboratory, Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Shaoqin Zheng
- College of Life and Health Science, Northeastern University, Shenyang 110819, China
| | - Tong Tong
- College of Life and Health Science, Northeastern University, Shenyang 110819, China
| | - Zexu Li
- College of Life and Health Science, Northeastern University, Shenyang 110819, China
| | - Haijiao Zhang
- College of Life and Health Science, Northeastern University, Shenyang 110819, China
| | - Lanjing Ma
- College of Life and Health Science, Northeastern University, Shenyang 110819, China
| | - Jiahui Lin
- College of Life and Health Science, Northeastern University, Shenyang 110819, China
| | - Zhongqiu Pang
- College of Life and Health Science, Northeastern University, Shenyang 110819, China
| | - Qing Han
- College of Life and Health Science, Northeastern University, Shenyang 110819, China
| | - Fukang Qi
- Key Laboratory for Biomedical Photonics of MOE at Wuhan National Laboratory for Optoelectronics - Hubei Bioinformatics and Molecular Imaging Key Laboratory, Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Xinjun Zhang
- Key Laboratory of Molecular Biophysics of the Ministry of Education, National Engineering Research Center for Nanomedicine, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Maorong Chen
- F.M Kirby Neurobiology Center, Boston Children's Hospital, Department of Neurology, Harvard Medical School, Boston, MA 02115, USA
| | - Xi He
- F.M Kirby Neurobiology Center, Boston Children's Hospital, Department of Neurology, Harvard Medical School, Boston, MA 02115, USA
| | - Xi Zhang
- College of Sciences, Northeastern University, Shenyang 110004, China
| | - Teng Fei
- College of Life and Health Science, Northeastern University, Shenyang 110819, China
| | - Bi-Feng Liu
- Key Laboratory for Biomedical Photonics of MOE at Wuhan National Laboratory for Optoelectronics - Hubei Bioinformatics and Molecular Imaging Key Laboratory, Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Daming Gao
- State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, Shanghai 200031, China
| | - Liu Cao
- College of Basic Medical Science, China Medical University, Shenyang 110122, China.
| | - Qiang Wang
- Division of Cell, Developmental and Integrative Biology, School of Medicine, South China University of Technology, Guangzhou 510006, China.
| | - Yiwei Li
- Key Laboratory for Biomedical Photonics of MOE at Wuhan National Laboratory for Optoelectronics - Hubei Bioinformatics and Molecular Imaging Key Laboratory, Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China.
| | - Ren Sheng
- College of Life and Health Science, Northeastern University, Shenyang 110819, China.
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14
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Salim S, Hussain S, Banu A, Gowda SBM, Ahammad F, Alwa A, Pasha M, Mohammad F. The ortholog of human ssDNA-binding protein SSBP3 influences neurodevelopment and autism-like behaviors in Drosophila melanogaster. PLoS Biol 2023; 21:e3002210. [PMID: 37486945 PMCID: PMC10399856 DOI: 10.1371/journal.pbio.3002210] [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: 12/04/2022] [Revised: 08/03/2023] [Accepted: 06/21/2023] [Indexed: 07/26/2023] Open
Abstract
1p32.3 microdeletion/duplication is implicated in many neurodevelopmental disorders-like phenotypes such as developmental delay, intellectual disability, autism, macro/microcephaly, and dysmorphic features. The 1p32.3 chromosomal region harbors several genes critical for development; however, their validation and characterization remain inadequate. One such gene is the single-stranded DNA-binding protein 3 (SSBP3) and its Drosophila melanogaster ortholog is called sequence-specific single-stranded DNA-binding protein (Ssdp). Here, we investigated consequences of Ssdp manipulations on neurodevelopment, gene expression, physiological function, and autism-associated behaviors using Drosophila models. We found that SSBP3 and Ssdp are expressed in excitatory neurons in the brain. Ssdp overexpression caused morphological alterations in Drosophila wing, mechanosensory bristles, and head. Ssdp manipulations also affected the neuropil brain volume and glial cell number in larvae and adult flies. Moreover, Ssdp overexpression led to differential changes in synaptic density in specific brain regions. We observed decreased levels of armadillo in the heads of Ssdp overexpressing flies, as well as a decrease in armadillo and wingless expression in the larval wing discs, implicating the involvement of the canonical Wnt signaling pathway in Ssdp functionality. RNA sequencing revealed perturbation of oxidative stress-related pathways in heads of Ssdp overexpressing flies. Furthermore, Ssdp overexpressing brains showed enhanced reactive oxygen species (ROS), altered neuronal mitochondrial morphology, and up-regulated fission and fusion genes. Flies with elevated levels of Ssdp exhibited heightened anxiety-like behavior, altered decisiveness, defective sensory perception and habituation, abnormal social interaction, and feeding defects, which were phenocopied in the pan-neuronal Ssdp knockdown flies, suggesting that Ssdp is dosage sensitive. Partial rescue of behavioral defects was observed upon normalization of Ssdp levels. Notably, Ssdp knockdown exclusively in adult flies did not produce behavioral and functional defects. Finally, we show that optogenetic manipulation of Ssdp-expressing neurons altered autism-associated behaviors. Collectively, our findings provide evidence that Ssdp, a dosage-sensitive gene in the 1p32.3 chromosomal region, is associated with various anatomical, physiological, and behavioral defects, which may be relevant to neurodevelopmental disorders like autism. Our study proposes SSBP3 as a critical gene in the 1p32.3 microdeletion/duplication genomic region and sheds light on the functional role of Ssdp in neurodevelopmental processes in Drosophila.
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Affiliation(s)
- Safa Salim
- Division of Biological and Biomedical Sciences (BBS), College of Health & Life Sciences (CHLS), Hamad Bin Khalifa University (HBKU), Doha, Qatar
| | - Sadam Hussain
- Division of Biological and Biomedical Sciences (BBS), College of Health & Life Sciences (CHLS), Hamad Bin Khalifa University (HBKU), Doha, Qatar
| | - Ayesha Banu
- Division of Biological and Biomedical Sciences (BBS), College of Health & Life Sciences (CHLS), Hamad Bin Khalifa University (HBKU), Doha, Qatar
| | - Swetha B. M. Gowda
- Division of Biological and Biomedical Sciences (BBS), College of Health & Life Sciences (CHLS), Hamad Bin Khalifa University (HBKU), Doha, Qatar
| | - Foysal Ahammad
- Division of Biological and Biomedical Sciences (BBS), College of Health & Life Sciences (CHLS), Hamad Bin Khalifa University (HBKU), Doha, Qatar
| | - Amira Alwa
- Division of Biological and Biomedical Sciences (BBS), College of Health & Life Sciences (CHLS), Hamad Bin Khalifa University (HBKU), Doha, Qatar
| | - Mujaheed Pasha
- HBKU Core Labs, Hamad Bin Khalifa University (HBKU): Doha, Qatar
| | - Farhan Mohammad
- Division of Biological and Biomedical Sciences (BBS), College of Health & Life Sciences (CHLS), Hamad Bin Khalifa University (HBKU), Doha, Qatar
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15
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Chen L, Liu YP, Tian LF, Li M, Yang S, Wang S, Xu W, Yan XX. Structural Basis of the Interaction between Human Axin2 and SIAH1 in the Wnt/β-Catenin Signaling Pathway. Biomolecules 2023; 13:biom13040647. [PMID: 37189394 DOI: 10.3390/biom13040647] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 03/22/2023] [Accepted: 04/03/2023] [Indexed: 04/08/2023] Open
Abstract
The scaffolding protein Axin is an important regulator of the Wnt signaling pathway, and its dysfunction is closely related to carcinogenesis. Axin could affect the assembly and dissociation of the β-catenin destruction complex. It can be regulated by phosphorylation, poly-ADP-ribosylation, and ubiquitination. The E3 ubiquitin ligase SIAH1 participates in the Wnt pathway by targeting various components for degradation. SIAH1 is also implicated in the regulation of Axin2 degradation, but the specific mechanism remains unclear. Here, we verified that the Axin2-GSK3 binding domain (GBD) was sufficient for SIAH1 binding by the GST pull-down assay. Our crystal structure of the Axin2/SIAH1 complex at 2.53 Å resolution reveals that one Axin2 molecule binds to one SIAH1 molecule via its GBD. These interactions critically depend on a highly conserved peptide 361EMTPVEPA368 within the Axin2-GBD, which forms a loop and binds to a deep groove formed by β1, β2, and β3 of SIAH1 by the N-terminal hydrophilic amino acids Arg361 and Thr363 and the C-terminal VxP motif. The novel binding mode indicates a promising drug-binding site for regulating Wnt/β-catenin signaling.
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Affiliation(s)
- Lianqi Chen
- National Laboratory of Biomacromolecules, CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yan-Ping Liu
- National Laboratory of Biomacromolecules, CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Li-Fei Tian
- National Laboratory of Biomacromolecules, CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China
| | - Mingzhou Li
- National Laboratory of Biomacromolecules, CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Shuyu Yang
- National Laboratory of Biomacromolecules, CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Song Wang
- National Laboratory of Biomacromolecules, CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China
| | - Wenqing Xu
- National Laboratory of Biomacromolecules, CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China
- School of Life Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Xiao-Xue Yan
- National Laboratory of Biomacromolecules, CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China
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16
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Feedback in the β-catenin destruction complex imparts bistability and cellular memory. Proc Natl Acad Sci U S A 2023; 120:e2208787120. [PMID: 36598937 PMCID: PMC9926258 DOI: 10.1073/pnas.2208787120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
Wnt ligands are considered classical morphogens, for which the strength of the cellular response is proportional to the concentration of the ligand. Herein, we show an emergent property of bistability arising from feedback among the Wnt destruction complex proteins that target the key transcriptional co-activator β-catenin for degradation. Using biochemical reconstitution, we identified positive feedback between the scaffold protein Axin and the kinase glycogen synthase kinase 3 (GSK3). Theoretical modeling of this feedback between Axin and GSK3 suggested that the activity of the destruction complex exhibits bistable behavior. We experimentally confirmed these predictions by demonstrating that cellular cytoplasmic β-catenin concentrations exhibit an "all-or-none" response with sustained memory (hysteresis) of the signaling input. This bistable behavior was transformed into a graded response and memory was lost through inhibition of GSK3. These findings provide a mechanism for establishing decisive, switch-like cellular response and memory upon Wnt pathway stimulation.
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17
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Wen Y, Li Y, Yang B, Guo X, Lin L, Liang J, Zhang K, Li X, Jiang Z, Wang Y, Li Y, Wu X, Fan X, Li F, Yuan W. Pygo1 Regulates the Behavior of Human Non-Small-Cell Lung Cancer via the Wnt/ β-Catenin Pathway. DISEASE MARKERS 2022; 2022:6993994. [PMID: 36398031 PMCID: PMC9666017 DOI: 10.1155/2022/6993994] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2022] [Accepted: 10/12/2022] [Indexed: 01/27/2024]
Abstract
Abnormal activation of the classical Wnt pathway has been reported in non-small-cell lung cancer (NSCLC) previously. Pygo family genes, the core regulators of Wnt/β-catenin signaling, were also reported to be involved in tumorigenesis. However, the role of the homolog Pygo1 in human lung cancer remains unclear. In the current study, we demonstrated an association of increased Pygo1 expression with consistent high nuclear β-catenin signals across pathological tissue samples of early-stage human NSCLC. Overexpression of Pygo1 in lung cancer cells resulted in enhanced G1/S cell phase transformation, reduced apoptosis, and increased cell proliferation. These changes were accompanied by the downregulation of cell cycle-related proteins, such as RB, p16, p53, and p27Kip1, and increased expression of CyclinE1. Migration, wound healing, and colony formation assays revealed that Pygo1 overexpression enhanced the invasion and migration of lung cancer cells, increased the formation of clones, and suppressed E-cadherin expression. In addition, overexpression of Pygo1 in lung cancer cells led to an increase of β-catenin/TCF4 complex, as well as upregulated expression of target genes of β-catenin. In vivo experiments also revealed that Pygo1 overexpression promoted the tumorigenicity of a xenograft tumor model, while Wnt inhibition partially blocked the effect of Pygo1 overexpression. In conclusion, Pygo1 affects human NSCLC via the canonical Wnt/β-catenin pathway, which provides new clues for lung cancer pathology.
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Affiliation(s)
- Yao Wen
- State Key Laboratory of Development Biology of Freshwater Fish, The Center for Heart Development, The College of Life Sciences, Hunan Normal University, Changsha, Hunan 410081, China
| | - Yuling Li
- State Key Laboratory of Development Biology of Freshwater Fish, The Center for Heart Development, The College of Life Sciences, Hunan Normal University, Changsha, Hunan 410081, China
| | - Boyu Yang
- State Key Laboratory of Development Biology of Freshwater Fish, The Center for Heart Development, The College of Life Sciences, Hunan Normal University, Changsha, Hunan 410081, China
| | - Xiangrong Guo
- State Key Laboratory of Development Biology of Freshwater Fish, The Center for Heart Development, The College of Life Sciences, Hunan Normal University, Changsha, Hunan 410081, China
| | - Li Lin
- State Key Laboratory of Development Biology of Freshwater Fish, The Center for Heart Development, The College of Life Sciences, Hunan Normal University, Changsha, Hunan 410081, China
| | - Jifeng Liang
- State Key Laboratory of Development Biology of Freshwater Fish, The Center for Heart Development, The College of Life Sciences, Hunan Normal University, Changsha, Hunan 410081, China
| | - Kai Zhang
- National Clinical Research Center for Geriatric Disorders, Department of Geriatrics, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
| | - Xu Li
- The Second Department of Thoracic Surgery, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan 410013, China
| | - Zhigang Jiang
- State Key Laboratory of Development Biology of Freshwater Fish, The Center for Heart Development, The College of Life Sciences, Hunan Normal University, Changsha, Hunan 410081, China
| | - Yuequn Wang
- State Key Laboratory of Development Biology of Freshwater Fish, The Center for Heart Development, The College of Life Sciences, Hunan Normal University, Changsha, Hunan 410081, China
| | - Yongqing Li
- State Key Laboratory of Development Biology of Freshwater Fish, The Center for Heart Development, The College of Life Sciences, Hunan Normal University, Changsha, Hunan 410081, China
| | - Xiushan Wu
- State Key Laboratory of Development Biology of Freshwater Fish, The Center for Heart Development, The College of Life Sciences, Hunan Normal University, Changsha, Hunan 410081, China
- Guangdong Provincial Key Laboratory of Pathogenesis, Targeted Prevention and Treatment of Heart Disease, Guangzhou, Guangdong 510000, China
| | - Xiongwei Fan
- State Key Laboratory of Development Biology of Freshwater Fish, The Center for Heart Development, The College of Life Sciences, Hunan Normal University, Changsha, Hunan 410081, China
| | - Fang Li
- State Key Laboratory of Development Biology of Freshwater Fish, The Center for Heart Development, The College of Life Sciences, Hunan Normal University, Changsha, Hunan 410081, China
| | - Wuzhou Yuan
- State Key Laboratory of Development Biology of Freshwater Fish, The Center for Heart Development, The College of Life Sciences, Hunan Normal University, Changsha, Hunan 410081, China
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18
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Huang S, Zhong J, Qi Q, Liu G, Gong M. CircRNA expression profile and potential role of hsa_circ_0040039 in intervertebral disc degeneration. Medicine (Baltimore) 2022; 101:e30035. [PMID: 35960109 PMCID: PMC9371492 DOI: 10.1097/md.0000000000030035] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
PURPOSE Circular RNAs (circRNAs) play an critical role in the pathological processes associated with IDD. However, the potential roles of circRNAs in IDD remain largely unclear. Here, we identify the circRNAs expression profiles and elucidate the potential role of candidate circRNAs in the pathogenesis of intervertebral disc degeneration (IDD) through microarray data and bioinformatics analyses. METHODS We obtained the datasets of microarrays (GSE67566 and GSE116726) from the Gene Expression Omnibus database. The differentially expressed circRNAs and miRNAs were identified using the Limma R package. The target miRNAs and target genes of the candidate circRNAs were predicted using an online tool. Functional enrichment analyses of the target genes were performed using the clusterProfiler R package. A protein-protein interaction (PPI) network was constructed using STRING. RESULTS A total of 104 differentially expressed circRNAs were identified between the IDD and the control groups, including 41 upregulated circRNAs and 63 downregulated circRNAs (cutoff criteria (|log2 fold change| > 2, P < .05)). Hsa_circ_0040039, which was the most upregulated circRNA (log2 fold change = 2.95), was selected for further analysis. The regulatory circRNA-miRNA-mRNA network comprised hsa_circ_0040039, 2 target miRNAs (hsa-miR-424-5p and hsa-miR-15b-5p), and 77 target genes. Functional enrichment analysis showed that the 77 promising target genes are mainly enriched in the ubiquitin proteasome system and Wnt signaling pathway. Further, the PPI network showed that the top 3 hub genes are BRTC, SIAH1, and UBE2V1. CONCLUSIONS A total of 104 differentially expressed circRNAs were identified between the IDD and control groups. Hsa_circ_0040039 may serve as a sponge of hsa-miR-424-5p and hsa-miR-15b-5p, to regulate the expression of downstream genes (such as BRTC, SIAH1, and UBE2V1); thus, it may be involved in IDD-associated pathological processes via the Wnt/β-catenin signaling pathway. Further studies are required to confirm the potential roles of hsa_circ_0040039 in IDD.
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Affiliation(s)
- Sheng Huang
- Department of Orthopaedics, the First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Junlong Zhong
- Department of Orthopaedics, the First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Qihua Qi
- Department of Orthopaedics, the First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Gangan Liu
- Department of Orthopaedics, the First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Ming Gong
- Department of Spine Surgery, People’s Hospital of Longhua, Shenzhen, China
- *Correspondence: Ming Gong, MD, Department of Spine Surgery, People’s Hospital of Longhua, Shenzhen, China (e-mail addresses: )
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19
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Wang B, Wang T, Zhu H, Yan R, Li X, Zhang C, Tao W, Ke X, Hao P, Qu Y. Neddylation is essential for β-catenin degradation in Wnt signaling pathway. Cell Rep 2022; 38:110538. [PMID: 35320710 DOI: 10.1016/j.celrep.2022.110538] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Revised: 10/30/2021] [Accepted: 02/25/2022] [Indexed: 11/16/2022] Open
Abstract
β-Catenin is a central component in the Wnt signaling pathway; its degradation has been tightly connected to ubiquitylation, but it is rarely examined by loss-of-function assays. Here we observe that endogenous β-catenin is not stabilized upon ubiquitylation depletion by a ubiquitylation inhibitor, TAK-243. We demonstrate that N-terminal phosphorylated β-catenin is quickly and strongly stabilized by a specific neddylation inhibitor, MLN4924, in all examined cell types, and that β-catenin and TCF4 interaction is strongly enhanced by inhibition of neddylation but not ubiquitylation. We also confirm that the E3 ligase β-TrCP2, but not β-TrCP1, is associated with neddylation and destruction of β-catenin. GSK3β and adenomatous polyposis coli (APC) are not required for β-catenin neddylation but essential for its subsequent degradation. Our findings not only clarify the process of β-catenin modification and degradation in the Wnt signaling pathway but also highlight the importance of reassessing previously identified ubiquitylation substrates.
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Affiliation(s)
- Bojun Wang
- Center for Chemical Biology, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, No.1200, Cailun Road, Shanghai 201203, P.R. China; Shanghai Frontiers Science Center of TCM Chemical Biology, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Tiantian Wang
- Center for Chemical Biology, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, No.1200, Cailun Road, Shanghai 201203, P.R. China; Shanghai Frontiers Science Center of TCM Chemical Biology, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Huimin Zhu
- Center for Chemical Biology, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, No.1200, Cailun Road, Shanghai 201203, P.R. China; Shanghai Frontiers Science Center of TCM Chemical Biology, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Rong Yan
- Center for Chemical Biology, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, No.1200, Cailun Road, Shanghai 201203, P.R. China; Shanghai Frontiers Science Center of TCM Chemical Biology, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Xinru Li
- Center for Chemical Biology, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, No.1200, Cailun Road, Shanghai 201203, P.R. China; Shanghai Frontiers Science Center of TCM Chemical Biology, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Chengqian Zhang
- School of Life Science and Technology, ShanghaiTech University, 393 Middle Huaxia Road, Shanghai 201210, China
| | - Wanyu Tao
- School of Life Science and Technology, ShanghaiTech University, 393 Middle Huaxia Road, Shanghai 201210, China
| | - Xisong Ke
- Center for Chemical Biology, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, No.1200, Cailun Road, Shanghai 201203, P.R. China; Shanghai Frontiers Science Center of TCM Chemical Biology, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.
| | - Piliang Hao
- School of Life Science and Technology, ShanghaiTech University, 393 Middle Huaxia Road, Shanghai 201210, China.
| | - Yi Qu
- Center for Chemical Biology, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, No.1200, Cailun Road, Shanghai 201203, P.R. China; Shanghai Frontiers Science Center of TCM Chemical Biology, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.
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20
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UCHL5 controls β-catenin destruction complex function through Axin1 regulation. Sci Rep 2022; 12:3687. [PMID: 35256667 PMCID: PMC8901634 DOI: 10.1038/s41598-022-07642-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2020] [Accepted: 02/21/2022] [Indexed: 12/02/2022] Open
Abstract
Wnt/β-catenin signaling is crucially involved in many biological processes, from embryogenesis to cancer development. Hence, the complete understanding of its molecular mechanism has been the biggest challenge in the Wnt research field. Here, we identified ubiquitin C-terminal hydrolase like 5 (UCHL5), a deubiquitinating enzyme, as a novel negative regulator of Wnt signaling, upstream of β-catenin. The study further revealed that UCHL5 plays an important role in the β-catenin destruction complex, as it physically interacts with multiple domains of Axin1 protein. Our functional analyses also elucidated that UCHL5 is required for both the stabilization and the polymerization of Axin1 proteins. Interestingly, although these events are governed by deubiquitination in the DIX domain of Axin1 protein, they do not require the deubiquitinating activity of UCHL5. The study proposes a novel molecular mechanism of UCHL5 potentiating the functional activity of Axin1, a scaffolder of the β-catenin destruction complex.
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21
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Ubiquitination-Proteasome System (UPS) and Autophagy Two Main Protein Degradation Machineries in Response to Cell Stress. Cells 2022; 11:cells11050851. [PMID: 35269473 PMCID: PMC8909305 DOI: 10.3390/cells11050851] [Citation(s) in RCA: 62] [Impact Index Per Article: 31.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 02/17/2022] [Accepted: 02/22/2022] [Indexed: 02/07/2023] Open
Abstract
In response to environmental stimuli, cells make a series of adaptive changes to combat the injury, repair the damage, and increase the tolerance to the stress. However, once the damage is too serious to repair, the cells will undergo apoptosis to protect the overall cells through suicidal behavior. Upon external stimulation, some intracellular proteins turn into unfolded or misfolded protein, exposing their hydrophobic regions to form protein aggregation, which may ultimately produce serious damage to the cells. Ubiquitin plays an important role in the degradation of these unnatural proteins by tagging with ubiquitin chains in the ubiquitin-proteasome or autophagy system. If the two processes fail to eliminate the abnormal protein aggregates, the cells will move to apoptosis and death. Dysregulation of ubiquitin-proteasome system (UPS) and autophagy may result in the development of numerous diseases. This review focuses on the molecular mechanisms of UPS and autophagy in clearance of intracellular protein aggregates, and the relationship between dysregulation of ubiquitin network and diseases.
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22
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Quiroga M, Rodríguez-Alonso A, Alfonsín G, Rodríguez JJE, Breijo SM, Chantada V, Figueroa A. Protein Degradation by E3 Ubiquitin Ligases in Cancer Stem Cells. Cancers (Basel) 2022; 14:cancers14040990. [PMID: 35205738 PMCID: PMC8870109 DOI: 10.3390/cancers14040990] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 02/09/2022] [Accepted: 02/11/2022] [Indexed: 02/05/2023] Open
Abstract
Simple Summary The aim of this review was to discuss the fundamental role of E3 ubiquitin ligases in controlling cancer stem cells. It will be surmised that protein degradation controlled by the E3 ubiquitin ligases plays a fundamental role in the self-renewal, maintenance and differentiation of cancer stem cells, highlighting its potential as an effective therapeutic target for anticancer drug development. Abstract Cancer stem cells are a small subpopulation within the tumor with high capacity for self-renewal, differentiation and reconstitution of tumor heterogeneity. Cancer stem cells are major contributors of tumor initiation, metastasis and therapy resistance in cancer. Emerging evidence indicates that ubiquitination-mediated post-translational modification plays a fundamental role in the maintenance of cancer stem cell characteristics. In this review, we will discuss how protein degradation controlled by the E3 ubiquitin ligases plays a fundamental role in the self-renewal, maintenance and differentiation of cancer stem cells, highlighting the possibility to develop novel therapeutic strategies against E3 ubiquitin ligases targeting CSCs to fight cancer.
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23
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Zheng H, Zheng WJ, Wang ZG, Tao YP, Huang ZP, Yang L, Ouyang L, Duan ZQ, Zhang YN, Chen BN, Xiang DM, Jin G, Fang L, Zhou F, Liang B. Decreased Expression of Programmed Death Ligand-L1 by Seven in Absentia Homolog 2 in Cholangiocarcinoma Enhances T-Cell-Mediated Antitumor Activity. Front Immunol 2022; 13:845193. [PMID: 35154166 PMCID: PMC8828655 DOI: 10.3389/fimmu.2022.845193] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Accepted: 01/10/2022] [Indexed: 01/03/2023] Open
Abstract
N6-methyladenosine (m6A) has been reported as an important mechanism of post-transcriptional regulation. Programmed death ligand 1 (PD-L1) is a primary immune inhibitory molecule expressed on tumor cells that promotes immune evasion. In addition, seven in absentia homolog 2 (Siah2), a RING E3 ubiquitin ligase, has been involved in tumorigenesis and cancer progression. However, the role of m6A-METTL14-Siah2-PD-L1 axis in immunotherapy remains to be elucidated. In this study, we showed that METTL14, a component of the m6A methyltransferase complex, induced Siah2 expression in cholangiocarcinoma (CCA). METTL14 was shown to enrich m6A modifications in the 3'UTR region of the Siah2 mRNA, thereby promoting its degradation in an YTHDF2-dependent manner. Furthermore, co-immunoprecipitation experiments demonstrated that Siah2 interacted with PD-L1 by promoting its K63-linked ubiquitination. We also observed that in vitro and in vivo Siah2 knockdown inhibited T cells expansion and cytotoxicity by sustaining tumor cell PD-L1 expression. The METTL14-Siah2-PD-L1-regulating axis was further confirmed in human CCA specimens. Analysis of specimens from patients receiving anti-PD1 immunotherapy suggested that tumors with low Siah2 levels were more sensitive to anti-PD1 immunotherapy. Taken together, our results evidenced a new regulatory mechanism of Siah2 by METTL14-induced mRNA epigenetic modification and the potential role of Siah2 in cancer immunotherapy.
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Affiliation(s)
- Hao Zheng
- Department of General Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, China,Department of Reproductive Heredity Center, Changhai Hospital, Second Military Medical University, Shanghai, China,Third Department of Hepatic Surgery, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai, China,Key Laboratory of Signaling Regulation and Targeting Therapy of Liver Cancer (SMMU), Ministry of Education, Shanghai, China,Shanghai Key Laboratory of Hepatobiliary Tumor Biology (EHBH), Shanghai, China
| | - Wen-juan Zheng
- Department of General Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Zhen-guang Wang
- Third Department of Hepatic Surgery, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai, China,Key Laboratory of Signaling Regulation and Targeting Therapy of Liver Cancer (SMMU), Ministry of Education, Shanghai, China,Shanghai Key Laboratory of Hepatobiliary Tumor Biology (EHBH), Shanghai, China
| | - Yuan-ping Tao
- National Liver Tissue Bank, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai, China
| | - Zhi-ping Huang
- Department of Hepatobiliary Surgery, General Hospital of Southern Theatre Command, Guangzhou, China
| | - Le Yang
- National Liver Tissue Bank, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai, China
| | - Liu Ouyang
- Department of Hepatobiliary Pancreatic Surgery, Changhai Hospital of Second Military Medical University, Shanghai, China
| | - Zhi-qing Duan
- Department of General Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Yi-nuo Zhang
- Department of General Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Bo-ning Chen
- Department of General Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Dai-min Xiang
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Gang Jin
- Department of Hepatobiliary Pancreatic Surgery, Changhai Hospital of Second Military Medical University, Shanghai, China
| | - Lu Fang
- Department of General Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, China,*Correspondence: Lu Fang, ; Fan Zhou, ; Bo Liang,
| | - Fan Zhou
- Department of General Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, China,*Correspondence: Lu Fang, ; Fan Zhou, ; Bo Liang,
| | - Bo Liang
- Department of General Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, China,*Correspondence: Lu Fang, ; Fan Zhou, ; Bo Liang,
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24
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Zhang H, Wang J, Ge Y, Ye M, Jin X. Siah1 in cancer and nervous system diseases (Review). Oncol Rep 2021; 47:35. [PMID: 34958110 DOI: 10.3892/or.2021.8246] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Accepted: 09/10/2021] [Indexed: 11/06/2022] Open
Abstract
The dysregulation of the ubiquitin‑proteasome system will result in the abnormal accumulation and dysfunction of proteins, thus leading to severe diseases. Seven in absentia homolog 1 (Siah1), an E3 ubiquitin ligase, has attracted wide attention due to its varied functions in physiological and pathological conditions, and the numerous newly discovered Siah1 substrates. In cancer and nervous system diseases, the functions of Siah1 as a promoter or a suppressor of diseases are related to the change in cellular microenvironment and subcellular localization. At the same time, complex upstream regulations make Siah1 different from other E3 ubiquitin ligases. Understanding the molecular mechanism of Siah1 will help the study of various signaling pathways and benefit the therapeutic strategy of human diseases (e.g., cancer and nervous system diseases). In the present review, the functions and regulations of Siah1 are described. Moreover, novel substrates of Siah1 discovered in recent studies will be highlighted in cancer and nervous system diseases, providing ideas for future research and clinical targeted therapies using Siah1.
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Affiliation(s)
- Hui Zhang
- Department of Oncology, The Affiliated Hospital of School of Medicine, Ningbo University, Ningbo, Zhejiang 315020, P.R. China
| | - Jie Wang
- Department of Oncology, The Affiliated Hospital of School of Medicine, Ningbo University, Ningbo, Zhejiang 315020, P.R. China
| | - Yidong Ge
- Department of Oncology, The Affiliated Hospital of School of Medicine, Ningbo University, Ningbo, Zhejiang 315020, P.R. China
| | - Meng Ye
- Department of Oncology, The Affiliated Hospital of School of Medicine, Ningbo University, Ningbo, Zhejiang 315020, P.R. China
| | - Xiaofeng Jin
- Department of Oncology, The Affiliated Hospital of School of Medicine, Ningbo University, Ningbo, Zhejiang 315020, P.R. China
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25
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Peng Y, Xu Y, Zhang X, Deng S, Yuan Y, Luo X, Hossain MT, Zhu X, Du K, Hu F, Chen Y, Chang S, Feng X, Fan X, Ashktorab H, Smoot D, Meltzer SJ, Hou G, Wei Y, Li S, Qin Y, Jin Z. A novel protein AXIN1-295aa encoded by circAXIN1 activates the Wnt/β-catenin signaling pathway to promote gastric cancer progression. Mol Cancer 2021; 20:158. [PMID: 34863211 PMCID: PMC8642992 DOI: 10.1186/s12943-021-01457-w] [Citation(s) in RCA: 70] [Impact Index Per Article: 23.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Accepted: 11/05/2021] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND Circular RNA (circRNA), a subclass of non-coding RNA, plays a critical role in cancer tumorigenesis and metastasis. It has been suggested that circRNA acts as a microRNA sponge or a scaffold to interact with protein complexes; however, its full range of functions remains elusive. Recently, some circRNAs have been found to have coding potential. METHODS To investigate the role of circRNAs in gastric cancer (GC), parallel sequencing was performed using five paired GC samples. Differentially expressed circAXIN1 was proposed to encode a novel protein. FLAG-tagged circRNA overexpression plasmid construction, immunoblotting, mass spectrometry, and luciferase reporter analyses were applied to confirm the coding potential of circAXIN1. Gain- and loss-of-function studies were conducted to study the oncogenic role of circAXIN1 and AXIN1-295aa on the proliferation, migration, invasion, and metastasis of GC cells in vitro and in vivo. The competitive interaction between AXIN1-295aa and adenomatous polyposis coli (APC) was investigated by immunoprecipitation analyses. Wnt signaling activity was observed using a Top/Fopflash assay, real-time quantitative RT-PCR, immunoblotting, immunofluorescence staining, and chromatin immunoprecipitation. RESULTS CircAXIN1 is highly expressed in GC tissues compared with its expression in paired adjacent normal gastric tissues. CircAXIN1 encodes a 295 amino acid (aa) novel protein, which was named AXIN1-295aa. CircAXIN1 overexpression enhances the cell proliferation, migration, and invasion of GC cells, while the knockdown of circAXIN1 inhibits the malignant behaviors of GC cells in vitro and in vivo. Mechanistically, AXIN1-295aa competitively interacts with APC, leading to dysfunction of the "destruction complex" of the Wnt pathway. Released β-catenin translocates to the nucleus and binds to the TCF consensus site on the promoter, inducing downstream gene expression. CONCLUSION CircAXIN1 encodes a novel protein, AXIN1-295aa. AXIN1-295aa functions as an oncogenic protein, activating the Wnt signaling pathway to promote GC tumorigenesis and progression, suggesting a potential therapeutic target for GC.
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Affiliation(s)
- Yin Peng
- grid.263488.30000 0001 0472 9649Guangdong Provincial Key Laboratory for Genome Stability & Disease Prevention and Regional Immunity and Diseases, Department of Pathology, Shenzhen University School of Medicine, 3688 Nanhai Avenue, Nanshan, Shenzhen, Guangdong 518060 People’s Republic of China
| | - Yidan Xu
- grid.263488.30000 0001 0472 9649Guangdong Provincial Key Laboratory for Genome Stability & Disease Prevention and Regional Immunity and Diseases, Department of Pathology, Shenzhen University School of Medicine, 3688 Nanhai Avenue, Nanshan, Shenzhen, Guangdong 518060 People’s Republic of China
| | - Xiaojing Zhang
- grid.263488.30000 0001 0472 9649Guangdong Provincial Key Laboratory for Genome Stability & Disease Prevention and Regional Immunity and Diseases, Department of Pathology, Shenzhen University School of Medicine, 3688 Nanhai Avenue, Nanshan, Shenzhen, Guangdong 518060 People’s Republic of China
| | - Shiqi Deng
- grid.263488.30000 0001 0472 9649Guangdong Provincial Key Laboratory for Genome Stability & Disease Prevention and Regional Immunity and Diseases, Department of Pathology, Shenzhen University School of Medicine, 3688 Nanhai Avenue, Nanshan, Shenzhen, Guangdong 518060 People’s Republic of China
| | - Yuan Yuan
- grid.263488.30000 0001 0472 9649Guangdong Provincial Key Laboratory for Genome Stability & Disease Prevention and Regional Immunity and Diseases, Department of Pathology, Shenzhen University School of Medicine, 3688 Nanhai Avenue, Nanshan, Shenzhen, Guangdong 518060 People’s Republic of China
| | - Xiaonuan Luo
- grid.263488.30000 0001 0472 9649Guangdong Provincial Key Laboratory for Genome Stability & Disease Prevention and Regional Immunity and Diseases, Department of Pathology, Shenzhen University School of Medicine, 3688 Nanhai Avenue, Nanshan, Shenzhen, Guangdong 518060 People’s Republic of China
| | - Md Tofazzal Hossain
- grid.410726.60000 0004 1797 8419University of Chinese Academy of Sciences, No.19(A) Yuquan Road, Shijingshan District Beijing, 100049 People’s Republic of China ,grid.458489.c0000 0001 0483 7922Center for High Performance Computing, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, Guangdong 518000 People’s Republic of China , Department of Statistics, Bangabandhu Sheikh Mujibur Rahaman Science and Technology University, Gopalganj, 8100 Bangladesh
| | - Xiaohui Zhu
- grid.263488.30000 0001 0472 9649Guangdong Provincial Key Laboratory for Genome Stability & Disease Prevention and Regional Immunity and Diseases, Department of Pathology, Shenzhen University School of Medicine, 3688 Nanhai Avenue, Nanshan, Shenzhen, Guangdong 518060 People’s Republic of China
| | - Kaining Du
- grid.263488.30000 0001 0472 9649Guangdong Provincial Key Laboratory for Genome Stability & Disease Prevention and Regional Immunity and Diseases, Department of Pathology, Shenzhen University School of Medicine, 3688 Nanhai Avenue, Nanshan, Shenzhen, Guangdong 518060 People’s Republic of China
| | - Fan Hu
- grid.263488.30000 0001 0472 9649Guangdong Provincial Key Laboratory for Genome Stability & Disease Prevention and Regional Immunity and Diseases, Department of Pathology, Shenzhen University School of Medicine, 3688 Nanhai Avenue, Nanshan, Shenzhen, Guangdong 518060 People’s Republic of China
| | - Yang Chen
- grid.263488.30000 0001 0472 9649Guangdong Provincial Key Laboratory for Genome Stability & Disease Prevention and Regional Immunity and Diseases, Department of Pathology, Shenzhen University School of Medicine, 3688 Nanhai Avenue, Nanshan, Shenzhen, Guangdong 518060 People’s Republic of China
| | - Shanshan Chang
- grid.263488.30000 0001 0472 9649Guangdong Provincial Key Laboratory for Genome Stability & Disease Prevention and Regional Immunity and Diseases, Department of Pathology, Shenzhen University School of Medicine, 3688 Nanhai Avenue, Nanshan, Shenzhen, Guangdong 518060 People’s Republic of China
| | - Xianling Feng
- grid.263488.30000 0001 0472 9649Guangdong Provincial Key Laboratory for Genome Stability & Disease Prevention and Regional Immunity and Diseases, Department of Pathology, Shenzhen University School of Medicine, 3688 Nanhai Avenue, Nanshan, Shenzhen, Guangdong 518060 People’s Republic of China
| | - Xinmin Fan
- grid.263488.30000 0001 0472 9649Guangdong Provincial Key Laboratory for Genome Stability & Disease Prevention and Regional Immunity and Diseases, Department of Pathology, Shenzhen University School of Medicine, 3688 Nanhai Avenue, Nanshan, Shenzhen, Guangdong 518060 People’s Republic of China
| | - Hassan Ashktorab
- grid.257127.40000 0001 0547 4545Department of Medicine and Cancer Center, Howard University, College of Medicine, Washington, DC, 20060 USA
| | - Duane Smoot
- Department of Medicine, Meharry Medical Center, Nashville, TN 37208 USA
| | - Stephen J. Meltzer
- grid.21107.350000 0001 2171 9311Department of Medicine/GI Division, Johns Hopkins University School of Medicine and Sidney Kimmel Comprehensive Cancer Center, Baltimore, MD 21287 USA
| | - Gangqiang Hou
- grid.440238.9Department of Medical Image Center, Kangning Hospital, Shenzhen, Guangdong 518000 People’s Republic of China
| | - Yanjie Wei
- grid.410726.60000 0004 1797 8419University of Chinese Academy of Sciences, No.19(A) Yuquan Road, Shijingshan District Beijing, 100049 People’s Republic of China
| | - Song Li
- Shenzhen Science & Technology Development Exchange Center, Shenzhen Science and Technology Building, Shenzhen, Guangdong, 518055, People's Republic of China.
| | - Ying Qin
- Department of Gastrointestinal Surgery, Shenzhen Second People's Hospital, Shenzhen, Guangdong, 518000, People's Republic of China.
| | - Zhe Jin
- Guangdong Provincial Key Laboratory for Genome Stability & Disease Prevention and Regional Immunity and Diseases, Department of Pathology, Shenzhen University School of Medicine, 3688 Nanhai Avenue, Nanshan, Shenzhen, Guangdong, 518060, People's Republic of China.
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26
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Li T, Tong H, Yin H, Luo Y, Zhu J, Qin Z, Yin S, He W. Starvation induced autophagy promotes the progression of bladder cancer by LDHA mediated metabolic reprogramming. Cancer Cell Int 2021; 21:597. [PMID: 34743698 PMCID: PMC8573950 DOI: 10.1186/s12935-021-02303-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Accepted: 10/26/2021] [Indexed: 11/19/2022] Open
Abstract
Background Aberrant autophagy and preternatural elevated glycolysis are prevalent in bladder cancer (BLCA) and are both related to malignant progression. However, the regulatory relationship between autophagy and glycolytic metabolism remains largely unknown. We imitated starvation conditions in the tumour microenvironment and found significantly increased levels of autophagy and aerobic glycolysis, which both regulated the progression of BLCA cells. We further explored the regulatory relationships and mechanisms between them. Methods We used immunoblotting, immunofluorescence and transmission electron microscopy to detect autophagy levels in BLCA cells under different treatments. Lactate and glucose concentration detection demonstrated changes in glycolysis. The expression of lactate dehydrogenase A (LDHA) was detected at the transcriptional and translational levels and was also silenced by small interfering RNA, and the effects on malignant progression were further tested. The underlying mechanisms of signalling pathways were evaluated by western blot, immunofluorescence and immunoprecipitation assays. Results Starvation induced autophagy, regulated glycolysis by upregulating the expression of LDHA and caused progressive changes in BLCA cells. Mechanistically, after starvation, the ubiquitination modification of Axin1 increased, and Axin1 combined with P62 was further degraded by the autophagy–lysosome pathway. Liberated β-catenin nuclear translocation increased, binding with LEF1/TCF4 and promoting LDHA transcriptional expression. Additionally, high expression of LDHA was observed in cancer tissues and was positively related to progression. Conclusion Our study demonstrated that starvation-induced autophagy modulates glucose metabolic reprogramming by enhancing Axin1 degradation and β-catenin nuclear translocation in BLCA, which promotes the transcriptional expression of LDHA and further malignant progression. Supplementary Information The online version contains supplementary material available at 10.1186/s12935-021-02303-1.
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Affiliation(s)
- Tinghao Li
- The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China.,Central Laboratory, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Hang Tong
- The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China.,Central Laboratory, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Hubin Yin
- The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Yi Luo
- The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Junlong Zhu
- The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China.,Central Laboratory, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Zijia Qin
- The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Siwen Yin
- The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Weiyang He
- The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China. .,Department of Urology, The First Affiliated Hospital of Chongqing Medical University, 1 Youyi Road, Yuzhong District, Chongqing, 400016, People's Republic of China.
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Wang R, Liu J, Li K, Yang G, Chen S, Wu J, Xie X, Ren H, Pang Y. An SETD1A/Wnt/β-catenin feedback loop promotes NSCLC development. J Exp Clin Cancer Res 2021; 40:318. [PMID: 34645486 PMCID: PMC8513302 DOI: 10.1186/s13046-021-02119-x] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Accepted: 09/26/2021] [Indexed: 11/23/2022] Open
Abstract
Background SETD1A, a member of SET1/MLL family H3K4 methyltransferases, is involved in the tumorigenesis of numerous cancers. However, the biological role and mechanism of SETD1A in non-small cell lung cancer (NSCLC) remain to be elucidated. Methods The expression of SETD1A, NEAT1, EZH2, and β-catenin in NSCLC tissues and cell lines was detected by qRT-PCR, immunohistochemistry and western blotting. The regulatory mechanisms were validated by chromatin immunoprecipitation, co-immunoprepitation and luciferase reporter assay. The self-renewal, cisplatin sensitivity and tumorigenesis of NSCLC cells were analyzed using sphere formation, CCK-8, colony formation assays and xenograft tumor models. Results SETD1A expression was significantly increased in NSCLC and its overexpression predicted a poor prognosis of patients with NSCLC. Functional experiments showed that SETD1A positively regulated cancer stem cell property and negatively regulated cisplatin sensitivity in NSCLC cells via the Wnt/β-catenin pathway. Next, we found that SETD1A positively regulated the Wnt/β-catenin pathway via interacting with and stabilizing β-catenin. The SET domain is dispensable for the interaction between SETD1A and β-catenin. Furthermore, we identified that SETD1A bound to the promoters of NEAT1 and EZH2 to activate gene transcription by inducing H3K4me3 enrichment. Rescue experiments showed that SETD1A promoted the Wnt/β-catenin pathway and exerted its oncogenic functions in NSCLC, at least, partly through NEAT1 and EZH2 upregulation. In addition, SETD1A was proven to be a direct target of the Wnt/β-catenin pathway, thus forming a positive feedback loop in NSCLC cells. Conclusion SETD1A and Wnt/β-catenin pathway form a positive feedback loop and coordinately contribute to NSCLC progression. Supplementary Information The online version contains supplementary material available at 10.1186/s13046-021-02119-x.
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Affiliation(s)
- Rui Wang
- Department of Thoracic Surgery, the First Affiliated Hospital of Xi'an Jiaotong University, 277 Yanta West Road, Xi'an, Shaanxi, 710061, P.R. China
| | - Jian Liu
- Department of Thoracic Surgery, the First Affiliated Hospital of Xi'an Jiaotong University, 277 Yanta West Road, Xi'an, Shaanxi, 710061, P.R. China.,Department of Respiratory and Critical Care Medicine, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 277 Yanta West Road, Xi'an, 710061, Shaanxi Province, China
| | - Kai Li
- Department of Thoracic Surgery, the First Affiliated Hospital of Xi'an Jiaotong University, 277 Yanta West Road, Xi'an, Shaanxi, 710061, P.R. China
| | - Ganghua Yang
- Department of Geriatric Surgery, the First Affiliated Hospital of Xi'an Jiaotong University, 277 Yanta West Road, Xi'an, Shaanxi, 710061, People's Republic of China
| | - Sisi Chen
- Department of Thoracic Surgery, the First Affiliated Hospital of Xi'an Jiaotong University, 277 Yanta West Road, Xi'an, Shaanxi, 710061, P.R. China
| | - Jie Wu
- Department of Thoracic Surgery, the First Affiliated Hospital of Xi'an Jiaotong University, 277 Yanta West Road, Xi'an, Shaanxi, 710061, P.R. China
| | - Xinming Xie
- Department of Respiratory and Critical Care Medicine, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 277 Yanta West Road, Xi'an, 710061, Shaanxi Province, China
| | - Hong Ren
- Department of Thoracic Surgery, the First Affiliated Hospital of Xi'an Jiaotong University, 277 Yanta West Road, Xi'an, Shaanxi, 710061, P.R. China.
| | - Yamei Pang
- Department of Respiratory and Critical Care Medicine, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 277 Yanta West Road, Xi'an, 710061, Shaanxi Province, China.
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28
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Shen C, Nayak A, Neitzel LR, Adams AA, Silver-Isenstadt M, Sawyer LM, Benchabane H, Wang H, Bunnag N, Li B, Wynn DT, Yang F, Garcia-Contreras M, Williams CH, Dakshanamurthy S, Hong CC, Ayad NG, Capobianco AJ, Ahmed Y, Lee E, Robbins DJ. The E3 ubiquitin ligase component, Cereblon, is an evolutionarily conserved regulator of Wnt signaling. Nat Commun 2021; 12:5263. [PMID: 34489457 PMCID: PMC8421366 DOI: 10.1038/s41467-021-25634-z] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Accepted: 08/13/2021] [Indexed: 11/09/2022] Open
Abstract
Immunomodulatory drugs (IMiDs) are important for the treatment of multiple myeloma and myelodysplastic syndrome. Binding of IMiDs to Cereblon (CRBN), the substrate receptor of the CRL4CRBN E3 ubiquitin ligase, induces cancer cell death by targeting key neo-substrates for degradation. Despite this clinical significance, the physiological regulation of CRBN remains largely unknown. Herein we demonstrate that Wnt, the extracellular ligand of an essential signal transduction pathway, promotes the CRBN-dependent degradation of a subset of proteins. These substrates include Casein kinase 1α (CK1α), a negative regulator of Wnt signaling that functions as a key component of the β-Catenin destruction complex. Wnt stimulation induces the interaction of CRBN with CK1α and its resultant ubiquitination, and in contrast with previous reports does so in the absence of an IMiD. Mechanistically, the destruction complex is critical in maintaining CK1α stability in the absence of Wnt, and in recruiting CRBN to target CK1α for degradation in response to Wnt. CRBN is required for physiological Wnt signaling, as modulation of CRBN in zebrafish and Drosophila yields Wnt-driven phenotypes. These studies demonstrate an IMiD-independent, Wnt-driven mechanism of CRBN regulation and provide a means of controlling Wnt pathway activity by CRBN, with relevance for development and disease.
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Affiliation(s)
- Chen Shen
- Molecular Oncology Program, The DeWitt Daughtry Family Department of Surgery, Miller School of Medicine, University of Miami, Miami, FL, USA.,The Sheila and David Fuente Graduate Program in Cancer Biology, Miller School of Medicine, University of Miami, Miami, FL, USA
| | - Anmada Nayak
- Molecular Oncology Program, The DeWitt Daughtry Family Department of Surgery, Miller School of Medicine, University of Miami, Miami, FL, USA
| | - Leif R Neitzel
- Department of Medicine, University of Maryland, Baltimore, MD, USA
| | - Amber A Adams
- Department of Molecular and Systems Biology and the Norris Cotton Cancer Center, Geisel School of Medicine, Dartmouth College, Hanover, NH, USA
| | | | - Leah M Sawyer
- Department of Cell and Developmental Biology, Vanderbilt University, Nashville, TN, USA
| | - Hassina Benchabane
- Department of Molecular and Systems Biology and the Norris Cotton Cancer Center, Geisel School of Medicine, Dartmouth College, Hanover, NH, USA
| | - Huilan Wang
- Molecular Oncology Program, The DeWitt Daughtry Family Department of Surgery, Miller School of Medicine, University of Miami, Miami, FL, USA
| | - Nawat Bunnag
- Department of Molecular and Systems Biology and the Norris Cotton Cancer Center, Geisel School of Medicine, Dartmouth College, Hanover, NH, USA
| | - Bin Li
- Molecular Oncology Program, The DeWitt Daughtry Family Department of Surgery, Miller School of Medicine, University of Miami, Miami, FL, USA
| | - Daniel T Wynn
- Molecular Oncology Program, The DeWitt Daughtry Family Department of Surgery, Miller School of Medicine, University of Miami, Miami, FL, USA
| | - Fan Yang
- Molecular Oncology Program, The DeWitt Daughtry Family Department of Surgery, Miller School of Medicine, University of Miami, Miami, FL, USA.,The Sheila and David Fuente Graduate Program in Cancer Biology, Miller School of Medicine, University of Miami, Miami, FL, USA
| | - Marta Garcia-Contreras
- Molecular Oncology Program, The DeWitt Daughtry Family Department of Surgery, Miller School of Medicine, University of Miami, Miami, FL, USA
| | | | - Sivanesan Dakshanamurthy
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC, USA
| | - Charles C Hong
- Department of Medicine, University of Maryland, Baltimore, MD, USA
| | - Nagi G Ayad
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC, USA.,Center for Therapeutic Innovation, Department of Neurological Surgery, Miami Project to Cure Paralysis, Miller School of Medicine, University of Miami, Miami, FL, USA.,Sylvester Comprehensive Cancer Center, Miller School of Medicine, University of Miami, Miami, FL, USA
| | - Anthony J Capobianco
- Molecular Oncology Program, The DeWitt Daughtry Family Department of Surgery, Miller School of Medicine, University of Miami, Miami, FL, USA.,Sylvester Comprehensive Cancer Center, Miller School of Medicine, University of Miami, Miami, FL, USA
| | - Yashi Ahmed
- Department of Molecular and Systems Biology and the Norris Cotton Cancer Center, Geisel School of Medicine, Dartmouth College, Hanover, NH, USA
| | - Ethan Lee
- Department of Cell and Developmental Biology, Vanderbilt University, Nashville, TN, USA
| | - David J Robbins
- Molecular Oncology Program, The DeWitt Daughtry Family Department of Surgery, Miller School of Medicine, University of Miami, Miami, FL, USA. .,Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC, USA. .,Sylvester Comprehensive Cancer Center, Miller School of Medicine, University of Miami, Miami, FL, USA.
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29
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Yang M, Han YM, Han Q, Rong XZ, Liu XF, Ln XY. KCTD11 inhibits progression of lung cancer by binding to β-catenin to regulate the activity of the Wnt and Hippo pathways. J Cell Mol Med 2021; 25:9411-9426. [PMID: 34453479 PMCID: PMC8500973 DOI: 10.1111/jcmm.16883] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Revised: 08/02/2021] [Accepted: 08/04/2021] [Indexed: 12/11/2022] Open
Abstract
KCTD11 has been reported to be a potential tumour suppressor in several tumour types. However, the expression of KCTD11 and its role has not been reported in human non‐small cell lung cancer (NSCLC). Whether its potential molecular mechanism is related to its BTB domain is also unknown. The expression of KCTD11 in 139 NSCLC tissue samples was detected by immunohistochemistry, and its correlation with clinicopathological factors was analysed. The effect of KCTD11 on the biological behaviour of lung cancer cells was verified in vitro and in vivo. Its effect on the epithelial‐mesenchymal transition(EMT)process and the Wnt/β‐catenin and Hippo/YAP pathways were observed by Western blot, dual‐luciferase assay, RT‐qPCR, immunofluorescence and immunoprecipitation. KCTD11 is under‐expressed in lung cancer tissues and cells and was negatively correlated with the degree of differentiation, tumour‐node‐metastasis (TNM) stage and lymph node metastasis. Low KCTD11 expression was associated with poor prognosis. KCTD11 overexpression inhibited the proliferation and migration of lung cancer cells. Further studies indicated that KCTD11 inhibited the Wnt pathway, activated the Hippo pathway and inhibited EMT processes by inhibiting the nuclear translocation of β‐catenin and YAP. KCTD11 lost its stimulatory effect on the Hippo pathway after knock down of β‐catenin. These findings confirm that KCTD11 inhibits β‐catenin and YAP nuclear translocation as well as the malignant phenotype of lung cancer cells by interacting with β‐catenin. This provides an important experimental basis for the interaction between KCTD11, β‐catenin and YAP, further revealing the link between the Wnt and Hippo pathways.
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Affiliation(s)
- Man Yang
- Department of Pathology, The First Affiliated Hospital and College of Basic Medical Sciences, China Medical University, Shenyang, China.,Department of Pathology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Ya-Mei Han
- Department of Pathology, The First Affiliated Hospital and College of Basic Medical Sciences, China Medical University, Shenyang, China
| | - Qiang Han
- Department of Pathology, The First Affiliated Hospital and College of Basic Medical Sciences, China Medical University, Shenyang, China
| | - Xue-Zhu Rong
- Department of Pathology, The First Affiliated Hospital and College of Basic Medical Sciences, China Medical University, Shenyang, China
| | - Xiao-Fang Liu
- Department of Pathology, The First Affiliated Hospital and College of Basic Medical Sciences, China Medical University, Shenyang, China
| | - Xu-Yong Ln
- Department of Pathology, The First Affiliated Hospital and College of Basic Medical Sciences, China Medical University, Shenyang, China
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30
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HNRNPU-AS1 regulates cell proliferation and apoptosis via miR-205-5p/AXIN2 axis and Wnt/β-catenin signaling pathway in cervical cancer. Mol Cell Biol 2021; 41:e0011521. [PMID: 34309414 DOI: 10.1128/mcb.00115-21] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
Long non-coding RNAs (lncRNAs) have key functions in modulating cervical cancer (CC) genesis and progression. This work focused on exploring lncRNA HNRNPU-AS1's function in CC and the underlying mechanism. HNRNPU-AS1, AXIN2 and miR-205-5p levels in CC cases were measured through RT-qPCR. Relationship between miR-205-5p and AXIN2 or HNRNPU-AS1 was validated through dual-luciferase assay. Cell proliferation was examined by CCK-8, while cell apoptosis by colony formation and flow cytometry analysis. HNRNPU-AS1 expression loss could be observed in CC patients and cell lines, which predicted the dismal prognosis of CC cases. Moreover, it was identified that the miR-205-5p level was up-regulated, which acted as an inhibitory target of HNRNPU-AS1 and AXIN2. HNRNPU-AS1 inhibited cell proliferation and promoted apoptosis. As revealed by Kaplan-Meier curve, CC cases showing low HNRNPU-AS1, high miR-205-5p, and low AXIN2 levels had the poorest prognosis. AXIN2 reversed the CC cell proliferation-promoting, apoptosis-inhibiting and Wnt/β-catenin signaling-activating mediated by miR-205-5p or HNRNPU-AS1 knockout. In conclusion, the overexpression of lncRNA HNRNPU-AS1 suppressed CC progression by inhibiting Wnt/β-catenin pathway through miR-205-5p/AXIN2 axis.
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31
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Tripathi A, Kashyap A, Tripathi G, Yadav J, Bibban R, Aggarwal N, Thakur K, Chhokar A, Jadli M, Sah AK, Verma Y, Zayed H, Husain A, Bharti AC, Kashyap MK. Tumor reversion: a dream or a reality. Biomark Res 2021; 9:31. [PMID: 33958005 PMCID: PMC8101112 DOI: 10.1186/s40364-021-00280-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Accepted: 03/30/2021] [Indexed: 02/07/2023] Open
Abstract
Reversion of tumor to a normal differentiated cell once considered a dream is now at the brink of becoming a reality. Different layers of molecules/events such as microRNAs, transcription factors, alternative RNA splicing, post-transcriptional, post-translational modifications, availability of proteomics, genomics editing tools, and chemical biology approaches gave hope to manipulation of cancer cells reversion to a normal cell phenotype as evidences are subtle but definitive. Regardless of the advancement, there is a long way to go, as customized techniques are required to be fine-tuned with precision to attain more insights into tumor reversion. Tumor regression models using available genome-editing methods, followed by in vitro and in vivo proteomics profiling techniques show early evidence. This review summarizes tumor reversion developments, present issues, and unaddressed challenges that remained in the uncharted territory to modulate cellular machinery for tumor reversion towards therapeutic purposes successfully. Ongoing research reaffirms the potential promises of understanding the mechanism of tumor reversion and required refinement that is warranted in vitro and in vivo models of tumor reversion, and the potential translation of these into cancer therapy. Furthermore, therapeutic compounds were reported to induce phenotypic changes in cancer cells into normal cells, which will contribute in understanding the mechanism of tumor reversion. Altogether, the efforts collectively suggest that tumor reversion will likely reveal a new wave of therapeutic discoveries that will significantly impact clinical practice in cancer therapy.
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Affiliation(s)
- Avantika Tripathi
- Amity Stem Cell Institute, Amity Medical School, Amity University Haryana, Panchgaon, Haryana, Manesar (Gurugram), -122413, India
| | - Anjali Kashyap
- Department of Biotechnology, Thapar Institute of Engineering & Technology, Patiala, Punjab, India
| | - Greesham Tripathi
- Amity Stem Cell Institute, Amity Medical School, Amity University Haryana, Panchgaon, Haryana, Manesar (Gurugram), -122413, India
| | - Joni Yadav
- Department of Zoology, Molecular Oncology Laboratory, University of Delhi (North Campus), New Delhi, 110007, India
| | - Rakhi Bibban
- Department of Zoology, Molecular Oncology Laboratory, University of Delhi (North Campus), New Delhi, 110007, India
| | - Nikita Aggarwal
- Department of Zoology, Molecular Oncology Laboratory, University of Delhi (North Campus), New Delhi, 110007, India
| | - Kulbhushan Thakur
- Department of Zoology, Molecular Oncology Laboratory, University of Delhi (North Campus), New Delhi, 110007, India
| | - Arun Chhokar
- Department of Zoology, Molecular Oncology Laboratory, University of Delhi (North Campus), New Delhi, 110007, India
| | - Mohit Jadli
- Department of Zoology, Molecular Oncology Laboratory, University of Delhi (North Campus), New Delhi, 110007, India
| | - Ashok Kumar Sah
- Department of Medical Laboratory Technology, Amity Medical School, Amity University Haryana, Panchgaon, Haryana, Manesar (Gurugram), India
- Department of Pathology and Laboratory Medicine, Medanta-The Medicity, Haryana, Gurugram, India
| | - Yeshvandra Verma
- Department of Toxicology, C C S University, Meerut, UP, 250004, India
| | - Hatem Zayed
- Department of Biomedical Sciences, College of Health Sciences, QU Health, Qatar University, Doha, Qatar
| | - Amjad Husain
- Centre for Science & Society, Indian Institute of Science Education and Research (IISER), Bhopal, India
- Innovation and Incubation Centre for Entrepreneurship (IICE), Indian Institute of Science Education and Research (IISER), Bhopal, India
| | - Alok Chandra Bharti
- Department of Zoology, Molecular Oncology Laboratory, University of Delhi (North Campus), New Delhi, 110007, India.
| | - Manoj Kumar Kashyap
- Amity Stem Cell Institute, Amity Medical School, Amity University Haryana, Panchgaon, Haryana, Manesar (Gurugram), -122413, India.
- Department of Zoology, Molecular Oncology Laboratory, University of Delhi (North Campus), New Delhi, 110007, India.
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32
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Kim MJ, Huang Y, Park JI. Targeting Wnt Signaling for Gastrointestinal Cancer Therapy: Present and Evolving Views. Cancers (Basel) 2020; 12:E3638. [PMID: 33291655 PMCID: PMC7761926 DOI: 10.3390/cancers12123638] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Revised: 11/28/2020] [Accepted: 12/01/2020] [Indexed: 12/19/2022] Open
Abstract
Wnt signaling governs tissue development, homeostasis, and regeneration. However, aberrant activation of Wnt promotes tumorigenesis. Despite the ongoing efforts to manipulate Wnt signaling, therapeutic targeting of Wnt signaling remains challenging. In this review, we provide an overview of current clinical trials to target Wnt signaling, with a major focus on gastrointestinal cancers. In addition, we discuss the caveats and alternative strategies for therapeutically targeting Wnt signaling for cancer treatment.
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Affiliation(s)
- Moon Jong Kim
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA; (M.J.K.); (Y.H.)
| | - Yuanjian Huang
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA; (M.J.K.); (Y.H.)
| | - Jae-Il Park
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA; (M.J.K.); (Y.H.)
- Graduate School of Biomedical Sciences, The University of Texas MD Anderson Cancer Center and Health Science Center, Houston, TX 77030, USA
- Program in Genetics and Epigenetics, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
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33
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Small-molecule-induced polymerization triggers degradation of BCL6. Nature 2020; 588:164-168. [PMID: 33208943 PMCID: PMC7816212 DOI: 10.1038/s41586-020-2925-1] [Citation(s) in RCA: 118] [Impact Index Per Article: 29.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2019] [Accepted: 09/03/2020] [Indexed: 12/23/2022]
Abstract
Effective and sustained inhibition of non-enzymatic oncogenic driver proteins is a major pharmacological challenge. The clinical success of thalidomide analogues demonstrates the therapeutic efficacy of drug-induced degradation of transcription factors and other cancer targets1-3, but a substantial subset of proteins are resistant to targeted degradation using existing approaches4,5. Here we report an alternative mechanism of targeted protein degradation, in which a small molecule induces the highly specific, reversible polymerization of a target protein, followed by its sequestration into cellular foci and subsequent degradation. BI-3802 is a small molecule that binds to the Broad-complex, Tramtrack and Bric-à-brac (BTB) domain of the oncogenic transcription factor B cell lymphoma 6 (BCL6) and leads to the proteasomal degradation of BCL66. We use cryo-electron microscopy to reveal how the solvent-exposed moiety of a BCL6-binding molecule contributes to a composite ligand-protein surface that engages BCL6 homodimers to form a supramolecular structure. Drug-induced formation of BCL6 filaments facilitates ubiquitination by the SIAH1 E3 ubiquitin ligase. Our findings demonstrate that a small molecule such as BI-3802 can induce polymerization coupled to highly specific protein degradation, which in the case of BCL6 leads to increased pharmacological activity compared to the effects induced by other BCL6 inhibitors. These findings open new avenues for the development of therapeutic agents and synthetic biology.
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34
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Gammons MV, Renko M, Flack JE, Mieszczanek J, Bienz M. Feedback control of Wnt signaling based on ultrastable histidine cluster co-aggregation between Naked/NKD and Axin. eLife 2020; 9:e59879. [PMID: 33025907 PMCID: PMC7581431 DOI: 10.7554/elife.59879] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Accepted: 10/06/2020] [Indexed: 12/20/2022] Open
Abstract
Feedback control is a universal feature of cell signaling pathways. Naked/NKD is a widely conserved feedback regulator of Wnt signaling which controls animal development and tissue homeostasis. Naked/NKD destabilizes Dishevelled, which assembles Wnt signalosomes to inhibit the β-catenin destruction complex via recruitment of Axin. Here, we discover that the molecular mechanism underlying Naked/NKD function relies on its assembly into ultra-stable decameric core aggregates via its conserved C-terminal histidine cluster (HisC). HisC aggregation is facilitated by Dishevelled and depends on accumulation of Naked/NKD during prolonged Wnt stimulation. Naked/NKD HisC cores co-aggregate with a conserved histidine cluster within Axin, to destabilize it along with Dishevelled, possibly via the autophagy receptor p62, which binds to HisC aggregates. Consistent with this, attenuated Wnt responses are observed in CRISPR-engineered flies and human epithelial cells whose Naked/NKD HisC has been deleted. Thus, HisC aggregation by Naked/NKD provides context-dependent feedback control of prolonged Wnt responses.
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Affiliation(s)
- Melissa V Gammons
- MRC Laboratory of Molecular Biology, Cambridge Biomedical CampusCambridgeUnited Kingdom
| | - Miha Renko
- MRC Laboratory of Molecular Biology, Cambridge Biomedical CampusCambridgeUnited Kingdom
| | - Joshua E Flack
- MRC Laboratory of Molecular Biology, Cambridge Biomedical CampusCambridgeUnited Kingdom
| | - Juliusz Mieszczanek
- MRC Laboratory of Molecular Biology, Cambridge Biomedical CampusCambridgeUnited Kingdom
| | - Mariann Bienz
- MRC Laboratory of Molecular Biology, Cambridge Biomedical CampusCambridgeUnited Kingdom
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35
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Casein Kinase 1α as a Regulator of Wnt-Driven Cancer. Int J Mol Sci 2020; 21:ijms21165940. [PMID: 32824859 PMCID: PMC7460588 DOI: 10.3390/ijms21165940] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Revised: 08/10/2020] [Accepted: 08/14/2020] [Indexed: 12/13/2022] Open
Abstract
Wnt signaling regulates numerous cellular processes during embryonic development and adult tissue homeostasis. Underscoring this physiological importance, deregulation of the Wnt signaling pathway is associated with many disease states, including cancer. Here, we review pivotal regulatory events in the Wnt signaling pathway that drive cancer growth. We then discuss the roles of the established negative Wnt regulator, casein kinase 1α (CK1α), in Wnt signaling. Although the study of CK1α has been ongoing for several decades, the bulk of such research has focused on how it phosphorylates and regulates its various substrates. We focus here on what is known about the mechanisms controlling CK1α, including its putative regulatory proteins and alternative splicing variants. Finally, we describe the discovery and validation of a family of pharmacological CK1α activators capable of inhibiting Wnt pathway activity. One of the important advantages of CK1α activators, relative to other classes of Wnt inhibitors, is their reduced on-target toxicity, overcoming one of the major impediments to developing a clinically relevant Wnt inhibitor. Therefore, we also discuss mechanisms that regulate CK1α steady-state homeostasis, which may contribute to the deregulation of Wnt pathway activity in cancer and underlie the enhanced therapeutic index of CK1α activators.
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36
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Ren H, Mi X, Zhao P, Zhao X, Wei N, Huang H, Meng Z, Kou J, Sun M, Liu Y, Zhang H, Yang J, Li W, Li H. TRAF4, a new substrate of SIAH1, participates in chemotherapy resistance of breast cancer cell by counteracting SIAH1-mediated downregulation of β-catenin. Breast Cancer Res Treat 2020; 183:275-289. [PMID: 32671611 DOI: 10.1007/s10549-020-05789-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Accepted: 07/04/2020] [Indexed: 12/22/2022]
Abstract
PURPOSE TRAF4 plays an important role in the development and progression of breast cancer, but its impact on chemotherapy resistance is as yet, however, poorly understood. METHODS Western blotting, immunoprecipitation, and immunofluorescence staining were used to identify and verify that TRAF4 was a novel substrate of SIAH1 and prevented SIAH1-mediated β-catenin degradation. Cell proliferation analysis and Flow cytometry analysis were utilized to detect TRAF4's function on the growth-inhibitory effect of etoposide. Immunohistochemistry was used to detect the expression of TRAF4, SIAH1, and β-catenin. Statistical analysis was used to analyze the relationships between them with clinical parameters and curative effect of chemotherapy pathologically. RESULTS Our results suggested that TRAF4 prevents SIAH1-mediated β-catenin degradation. TRAF4 was a novel substrate of SIAH1 and the TRAF domain of TRAF4 was critical for binding to SIAH1. TRAF4 reduced the growth-inhibitory effect of etoposide via reducing the number of S-phase cells and suppressing cell apoptosis. Concordantly, we found that breast cancer patients with a low-TRAF4 expression benefited most from chemotherapy, who had higher tumor volume reduction rate and better pathological response, while, the high-TRAF4 expression group had lower tumor volume reduction rate and poor pathological response. CONCLUSIONS TRAF4 was a novel substrate of SIAH1 and prevented SIAH1-mediated β-catenin degradation, which explains the protective effect of TRAF4 on β-catenin during cell stress and links TRAF4 to chemotherapy resistance in tumors. These findings implicated a novel pathway for the oncogenic function of TRAF4.
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Affiliation(s)
- Huayan Ren
- Department of Pathology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,College of Basic Medical Sciences, Zhengzhou University, Jianshe Road 1, Erqi Ward, Zhengzhou, 450052, P.R. China
| | - Xiaoyi Mi
- Department of Pathology, College of Basic Medical Sciences and First Affiliated Hospital, China Medical University, Shenyang, China
| | - Pengyuan Zhao
- Department of Pathology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,College of Basic Medical Sciences, Zhengzhou University, Jianshe Road 1, Erqi Ward, Zhengzhou, 450052, P.R. China
| | - Xueyan Zhao
- Department of Pathology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,College of Basic Medical Sciences, Zhengzhou University, Jianshe Road 1, Erqi Ward, Zhengzhou, 450052, P.R. China
| | - Na Wei
- Department of Pathology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,College of Basic Medical Sciences, Zhengzhou University, Jianshe Road 1, Erqi Ward, Zhengzhou, 450052, P.R. China
| | - Huifen Huang
- Department of Pathology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,College of Basic Medical Sciences, Zhengzhou University, Jianshe Road 1, Erqi Ward, Zhengzhou, 450052, P.R. China
| | - Zhongqin Meng
- Department of Pathology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,College of Basic Medical Sciences, Zhengzhou University, Jianshe Road 1, Erqi Ward, Zhengzhou, 450052, P.R. China
| | - Junna Kou
- Department of Pathology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,College of Basic Medical Sciences, Zhengzhou University, Jianshe Road 1, Erqi Ward, Zhengzhou, 450052, P.R. China
| | - Mingfang Sun
- Department of Pathology, College of Basic Medical Sciences and First Affiliated Hospital, China Medical University, Shenyang, China
| | - Yuqiong Liu
- Department of Pathology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,College of Basic Medical Sciences, Zhengzhou University, Jianshe Road 1, Erqi Ward, Zhengzhou, 450052, P.R. China
| | - Hongyan Zhang
- Department of Pathology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,College of Basic Medical Sciences, Zhengzhou University, Jianshe Road 1, Erqi Ward, Zhengzhou, 450052, P.R. China
| | - Jianping Yang
- Department of Pathology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,College of Basic Medical Sciences, Zhengzhou University, Jianshe Road 1, Erqi Ward, Zhengzhou, 450052, P.R. China
| | - Wencai Li
- Department of Pathology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,College of Basic Medical Sciences, Zhengzhou University, Jianshe Road 1, Erqi Ward, Zhengzhou, 450052, P.R. China
| | - Huixiang Li
- Department of Pathology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China. .,College of Basic Medical Sciences, Zhengzhou University, Jianshe Road 1, Erqi Ward, Zhengzhou, 450052, P.R. China.
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Buratti J, Ji L, Keren B, Lee Y, Booke S, Erdin S, Kim SY, Palculict TB, Meiner V, Chae JH, Woods CG, Tam A, Héron D, Cong F, Harel T. De novo variants in SIAH1, encoding an E3 ubiquitin ligase, are associated with developmental delay, hypotonia and dysmorphic features. J Med Genet 2020; 58:205-212. [PMID: 32430360 DOI: 10.1136/jmedgenet-2019-106335] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Revised: 03/25/2020] [Accepted: 04/03/2020] [Indexed: 12/16/2022]
Abstract
BACKGROUND Ubiquitination has a central role in numerous biological processes, including cell development, stress responses and ageing. Perturbed ubiquitination has been implicated in human diseases ranging from cancer to neurodegenerative diseases. SIAH1 encodes a RING-type E3 ubiquitin ligase involved in protein ubiquitination. Among numerous other roles, SIAH1 regulates metabotropic glutamate receptor signalling and affects neural cell fate. Moreover, SIAH1 positively regulates Wnt signalling through ubiquitin-mediated degradation of Axin and accumulation of β-catenin. METHODS Trio exome sequencing followed by Sanger validation was undertaken in five individuals with syndromic developmental delay. Three-dimensional structural modelling was used to predict pathogenicity of affected residues. Wnt stimulatory activity was measured by luciferase reporter assays and Axin degradation assays in HEK293 cells transfected with wild-type and mutant SIAH1 expression plasmids. RESULTS We report five unrelated individuals with shared features of developmental delay, infantile hypotonia, dysmorphic features and laryngomalacia, in whom exome sequencing identified de novo monoallelic variants in SIAH1. In silico protein modelling suggested alteration of conserved functional sites. In vitro experiments demonstrated loss of Wnt stimulatory activity with the SIAH1 mutants, suggesting variant pathogenicity. CONCLUSION Our results lend support to SIAH1 as a candidate Mendelian disease gene for a recognisable syndrome, further strengthening the connection between SIAH1 and neurodevelopmental disorders. Furthermore, the results suggest that dysregulation of the Wnt/β-catenin pathway may be involved in the pathogenesis.
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Affiliation(s)
- Julien Buratti
- Département de Génétique, Hôpital Pitié-Salpêtrière, Assistance publique-Hôpitaux de Paris, Paris, France
| | - Lei Ji
- Chemical Biology and Therapeutics, Novartis Institutes for Biomedical Research, Cambridge, MA, USA
| | - Boris Keren
- Département de Génétique, Hôpital Pitié-Salpêtrière, Assistance publique-Hôpitaux de Paris, Paris, France
| | - Youngha Lee
- Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Stephanie Booke
- Department of Pediatrics, Division of Medical Genetics, University of California San Francisco, San Francisco, CA, USA
| | - Serkan Erdin
- Center for Genomic Medicine, Massachusetts General Hospital, Boston, MA, USA.,Program in Medical and Population Genetics, Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Soo Yeon Kim
- Department of Pediatrics, Seoul National University Children's Hospital, Seoul, Republic of Korea
| | | | - Vardiella Meiner
- Department of Genetics, Hadassah-Hebrew University Medical Center, Jerusalem, Israel
| | - Jong Hee Chae
- Department of Pediatrics, Seoul National University Children's Hospital, Seoul, Republic of Korea
| | - Christopher Geoffrey Woods
- Cambridge Institute for Medical Research, Department of Medical Genetics, Univeristy of Cambridge, Cambridge, UK
| | - Allison Tam
- Department of Pediatrics, Division of Medical Genetics, University of California San Francisco, San Francisco, CA, USA
| | - Delphine Héron
- Département de Génétique et Centre de Référence "déficiences intellectuelles de causes rares", AP-HP, Hôpital de la Pitié-Salpêtrière, Paris, France
| | - Feng Cong
- Chemical Biology and Therapeutics, Novartis Institutes for Biomedical Research, Cambridge, MA, USA
| | - Tamar Harel
- Department of Genetics, Hadassah-Hebrew University Medical Center, Jerusalem, Israel
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Deng L, Meng T, Chen L, Wei W, Wang P. The role of ubiquitination in tumorigenesis and targeted drug discovery. Signal Transduct Target Ther 2020; 5:11. [PMID: 32296023 PMCID: PMC7048745 DOI: 10.1038/s41392-020-0107-0] [Citation(s) in RCA: 365] [Impact Index Per Article: 91.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2019] [Revised: 12/12/2019] [Accepted: 12/17/2019] [Indexed: 02/08/2023] Open
Abstract
Ubiquitination, an important type of protein posttranslational modification (PTM), plays a crucial role in controlling substrate degradation and subsequently mediates the "quantity" and "quality" of various proteins, serving to ensure cell homeostasis and guarantee life activities. The regulation of ubiquitination is multifaceted and works not only at the transcriptional and posttranslational levels (phosphorylation, acetylation, methylation, etc.) but also at the protein level (activators or repressors). When regulatory mechanisms are aberrant, the altered biological processes may subsequently induce serious human diseases, especially various types of cancer. In tumorigenesis, the altered biological processes involve tumor metabolism, the immunological tumor microenvironment (TME), cancer stem cell (CSC) stemness and so on. With regard to tumor metabolism, the ubiquitination of some key proteins such as RagA, mTOR, PTEN, AKT, c-Myc and P53 significantly regulates the activity of the mTORC1, AMPK and PTEN-AKT signaling pathways. In addition, ubiquitination in the TLR, RLR and STING-dependent signaling pathways also modulates the TME. Moreover, the ubiquitination of core stem cell regulator triplets (Nanog, Oct4 and Sox2) and members of the Wnt and Hippo-YAP signaling pathways participates in the maintenance of CSC stemness. Based on the altered components, including the proteasome, E3 ligases, E1, E2 and deubiquitinases (DUBs), many molecular targeted drugs have been developed to combat cancer. Among them, small molecule inhibitors targeting the proteasome, such as bortezomib, carfilzomib, oprozomib and ixazomib, have achieved tangible success. In addition, MLN7243 and MLN4924 (targeting the E1 enzyme), Leucettamol A and CC0651 (targeting the E2 enzyme), nutlin and MI-219 (targeting the E3 enzyme), and compounds G5 and F6 (targeting DUB activity) have also shown potential in preclinical cancer treatment. In this review, we summarize the latest progress in understanding the substrates for ubiquitination and their special functions in tumor metabolism regulation, TME modulation and CSC stemness maintenance. Moreover, potential therapeutic targets for cancer are reviewed, as are the therapeutic effects of targeted drugs.
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Affiliation(s)
- Lu Deng
- College of Animal Science and Technology, Northwest A&F University, Yangling Shaanxi, 712100, China.
| | - Tong Meng
- Division of Spine, Department of Orthopedics, Tongji Hospital Affiliated to Tongji University School of Medicine, 389 Xincun Road, Shanghai, China
| | - Lei Chen
- Division of Laboratory Safety and Services, Northwest A&F University, Yangling Shaanxi, 712100, China
| | - Wenyi Wei
- Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, 02215, USA
| | - Ping Wang
- Tongji University Cancer Center, Shanghai Tenth People's Hospital of Tongji University, School of Medicine, Tongji University, Shanghai, 200092, China.
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Axin 1 knockdown inhibits osteoblastic apoptosis induced by Porphyromonas gingivalis lipopolysaccharide. Arch Oral Biol 2020; 112:104667. [PMID: 32092441 DOI: 10.1016/j.archoralbio.2020.104667] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2019] [Revised: 12/23/2019] [Accepted: 01/21/2020] [Indexed: 12/29/2022]
Abstract
BACKGROUND Porphyromonas gingivalis (Pg) is one of the pathogenic bacteria that cause periodontal diseases, lipopolysaccharide (LPS) is the key factor that triggers alveolar bone absorption. This study explored the action of Axin 1 on Pg-LPS-induced osteoblasts injury, so as to search a possible treatment for periodontal diseases. METHODS Rat osteoblasts were dealt with Pg-LPS and Axin 1 knockdown alone or in combination. The effect of Pg-LPS and Axin 1 on osteoblast viability and apoptosis were detected by Cell Counting Kit-8 and flow cytometry. The expressions of alkaline phosphatase (ALP) and Axin 1 in processed osteoblasts were measured by western blot (WB) and quantitative real-time polymerase chain reaction (qRT-PCR) assays. Furthermore, the role of Axin 1 knockdown in the levels of inflammatory cytokines and apoptosis-related proteins were also determined. RESULTS Pg-LPS inhibited the viability of osteoblasts and promote apoptosis with concentration and time dependence. ALP expression in Pg-LPS-treated osteoblasts was reduced, while Axin 1 expression was increased. On the one hand, Axin 1 knockdown reversed the Pg-LPS-induced reduction of cell activity and pro-apoptosis effect. On the other hand, Axin 1 knockdown not only improved the ALP activity of Pg-LPS-treated cells, but also reduced the elevation of inflammatory cytokines (TNF-α, IL-1β and IL-6) caused by Pg-LPS. Moreover, Pg-LPS increased the expressions of cleaved Caspase-3 and Bax, and inhibited Bcl-2 expressed, which was rescued by Axin 1 knockdown. CONCLUSION Axin 1 knockdown inhibited Pg-LPS-induced osteoblastic apoptosis by regulating the levels of inflammatory cytokines, which may be helpful for the treatment of periodontal diseases.
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Xiao Z, Wei Z, Deng D, Zheng Z, Zhao Y, Jiang S, Zhang D, Zhang LJ, Fan M, Chen S, Wang S, Ding Y, Ye Y, Jiao H. Downregulation of Siah1 promotes colorectal cancer cell proliferation and migration by regulating AKT and YAP ubiquitylation and proteasome degradation. Cancer Cell Int 2020; 20:50. [PMID: 32082080 PMCID: PMC7020597 DOI: 10.1186/s12935-020-1124-3] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2019] [Accepted: 01/25/2020] [Indexed: 12/11/2022] Open
Abstract
Background Colorectal cancer (CRC) is one of the most common malignant tumors in the world. Siah E3 ubiquitin protein ligase 1 (Siah1) has been identified as a tumor suppressor gene and plays an important role in the development of malignant tumors. However, the potential role and molecular mechanism of Siah1 in the development and progression of CRC is still unclear. Methods To explore the role and molecular mechanism of Siah1 in the development and progression of CRC, we examined the expression of Siah1 in CRC tissue samples and analyzed its association with progression and prognosis in CRC. In addition, overexpression and knockdown of Siah1 was used to investigate its activity in CRC cells. We also use bioinformatics to analyze and verify the significant roles of Siah1 in critical signaling pathways of CRC. Results We found that the expression of Siah1 was significantly downregulated in CRC tissues, and low expression of Siah1 was associated with aggressive TNM staging and poor survival of CRC patients. Moreover, we revealed that overexpression of Siah1 in CRC cells markedly inhibited CRC cell proliferation and invasion in vitro and in vivo, while knockdown of Siah1 enhanced CRC cell proliferation and invasion. Furthermore, we found that Siah1 prohibited cell proliferation and invasion in CRC partially through promoting AKT (the serine-threonine protein kinase) and YAP (yes associated protein) ubiquitylation and proteasome degradation to regulate the activity of MAPK(mitogen-activated protein kinase 1), PI3K-AKT (phosphatidylinositol 3-kinase-the serine-threonine protein kinase) and Hippo signaling pathways. Conclusions These findings suggested that Siah1 is a novel potential prognostic biomarker and plays a tumor suppressor role in the development and progression of CRC.
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Affiliation(s)
- Zhiyuan Xiao
- 1Department of Pathology, Nanfang Hospital and School of Basic Medical Science, Southern Medical University, Guangzhou, 510515 China.,2Guangdong Provincial Key Laboratory of Molecular Tumor Pathology, Guangzhou, China.,3Department of Pathology, Shenzhen People's Hospital, Second Clinical Medical College of Jinan University, Shenzhen, Guangdong China
| | - Zhigang Wei
- 4Department of General Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Danling Deng
- 1Department of Pathology, Nanfang Hospital and School of Basic Medical Science, Southern Medical University, Guangzhou, 510515 China.,2Guangdong Provincial Key Laboratory of Molecular Tumor Pathology, Guangzhou, China.,Department of Pathology, Shaoyang Central Hospital, Affiliated Shaoyang Hospital of University of South China, Shaoyang, Hunan China
| | - Zhe Zheng
- 1Department of Pathology, Nanfang Hospital and School of Basic Medical Science, Southern Medical University, Guangzhou, 510515 China.,2Guangdong Provincial Key Laboratory of Molecular Tumor Pathology, Guangzhou, China
| | - Yali Zhao
- 1Department of Pathology, Nanfang Hospital and School of Basic Medical Science, Southern Medical University, Guangzhou, 510515 China.,2Guangdong Provincial Key Laboratory of Molecular Tumor Pathology, Guangzhou, China
| | - Shenglu Jiang
- 1Department of Pathology, Nanfang Hospital and School of Basic Medical Science, Southern Medical University, Guangzhou, 510515 China.,2Guangdong Provincial Key Laboratory of Molecular Tumor Pathology, Guangzhou, China
| | - Dan Zhang
- 1Department of Pathology, Nanfang Hospital and School of Basic Medical Science, Southern Medical University, Guangzhou, 510515 China.,2Guangdong Provincial Key Laboratory of Molecular Tumor Pathology, Guangzhou, China
| | - Ling-Jie Zhang
- 1Department of Pathology, Nanfang Hospital and School of Basic Medical Science, Southern Medical University, Guangzhou, 510515 China.,2Guangdong Provincial Key Laboratory of Molecular Tumor Pathology, Guangzhou, China
| | - Mingmei Fan
- 1Department of Pathology, Nanfang Hospital and School of Basic Medical Science, Southern Medical University, Guangzhou, 510515 China.,2Guangdong Provincial Key Laboratory of Molecular Tumor Pathology, Guangzhou, China
| | - Siqi Chen
- 1Department of Pathology, Nanfang Hospital and School of Basic Medical Science, Southern Medical University, Guangzhou, 510515 China.,2Guangdong Provincial Key Laboratory of Molecular Tumor Pathology, Guangzhou, China
| | - ShuYang Wang
- 1Department of Pathology, Nanfang Hospital and School of Basic Medical Science, Southern Medical University, Guangzhou, 510515 China.,2Guangdong Provincial Key Laboratory of Molecular Tumor Pathology, Guangzhou, China
| | - Yanqing Ding
- 1Department of Pathology, Nanfang Hospital and School of Basic Medical Science, Southern Medical University, Guangzhou, 510515 China.,2Guangdong Provincial Key Laboratory of Molecular Tumor Pathology, Guangzhou, China
| | - Yaping Ye
- 1Department of Pathology, Nanfang Hospital and School of Basic Medical Science, Southern Medical University, Guangzhou, 510515 China.,2Guangdong Provincial Key Laboratory of Molecular Tumor Pathology, Guangzhou, China
| | - Hongli Jiao
- 1Department of Pathology, Nanfang Hospital and School of Basic Medical Science, Southern Medical University, Guangzhou, 510515 China.,2Guangdong Provincial Key Laboratory of Molecular Tumor Pathology, Guangzhou, China
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Garcia-Barcena C, Osinalde N, Ramirez J, Mayor U. How to Inactivate Human Ubiquitin E3 Ligases by Mutation. Front Cell Dev Biol 2020; 8:39. [PMID: 32117970 PMCID: PMC7010608 DOI: 10.3389/fcell.2020.00039] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2019] [Accepted: 01/16/2020] [Indexed: 12/24/2022] Open
Abstract
E3 ubiquitin ligases are the ultimate enzymes involved in the transfer of ubiquitin to substrate proteins, a process that determines the fate of the modified protein. Numerous diseases are caused by defects in the ubiquitin-proteasome machinery, including when the activity of a given E3 ligase is hampered. Thus, inactivation of E3 ligases and the resulting effects at molecular or cellular level have been the focus of many studies during the last few years. For this purpose, site-specific mutation of key residues involved in either protein interaction, substrate recognition or ubiquitin transfer have been reported to successfully inactivate E3 ligases. Nevertheless, it is not always trivial to predict which mutation(s) will block the catalytic activity of a ligase. Here we review over 250 site-specific inactivating mutations that have been carried out in 120 human E3 ubiquitin ligases. We foresee that the information gathered here will be helpful for the design of future experimental strategies.
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Affiliation(s)
- Cristina Garcia-Barcena
- Department of Biochemistry and Molecular Biology, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Leioa, Spain
| | - Nerea Osinalde
- Department of Biochemistry and Molecular Biology, Faculty of Pharmacy, University of the Basque Country (UPV/EHU), Vitoria-Gasteiz, Spain
| | - Juanma Ramirez
- Department of Biochemistry and Molecular Biology, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Leioa, Spain
| | - Ugo Mayor
- Department of Biochemistry and Molecular Biology, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Leioa, Spain.,Ikerbasque - Basque Foundation for Science, Bilbao, Spain
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Baloghova N, Lidak T, Cermak L. Ubiquitin Ligases Involved in the Regulation of Wnt, TGF-β, and Notch Signaling Pathways and Their Roles in Mouse Development and Homeostasis. Genes (Basel) 2019; 10:genes10100815. [PMID: 31623112 PMCID: PMC6826584 DOI: 10.3390/genes10100815] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2019] [Revised: 10/02/2019] [Accepted: 10/13/2019] [Indexed: 12/20/2022] Open
Abstract
The Wnt, TGF-β, and Notch signaling pathways are essential for the regulation of cellular polarity, differentiation, proliferation, and migration. Differential activation and mutual crosstalk of these pathways during animal development are crucial instructive forces in the initiation of the body axis and the development of organs and tissues. Due to the ability to initiate cell proliferation, these pathways are vulnerable to somatic mutations selectively producing cells, which ultimately slip through cellular and organismal checkpoints and develop into cancer. The architecture of the Wnt, TGF-β, and Notch signaling pathways is simple. The transmembrane receptor, activated by the extracellular stimulus, induces nuclear translocation of the transcription factor, which subsequently changes the expression of target genes. Nevertheless, these pathways are regulated by a myriad of factors involved in various feedback mechanisms or crosstalk. The most prominent group of regulators is the ubiquitin-proteasome system (UPS). To open the door to UPS-based therapeutic manipulations, a thorough understanding of these regulations at a molecular level and rigorous confirmation in vivo are required. In this quest, mouse models are exceptional and, thanks to the progress in genetic engineering, also an accessible tool. Here, we reviewed the current understanding of how the UPS regulates the Wnt, TGF-β, and Notch pathways and we summarized the knowledge gained from related mouse models.
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Affiliation(s)
- Nikol Baloghova
- Laboratory of Cancer Biology, Division BIOCEV, Institute of Molecular Genetics of the Czech Academy of Sciences, 252 42 Vestec, Czech Republic.
| | - Tomas Lidak
- Laboratory of Cancer Biology, Division BIOCEV, Institute of Molecular Genetics of the Czech Academy of Sciences, 252 42 Vestec, Czech Republic.
| | - Lukas Cermak
- Laboratory of Cancer Biology, Division BIOCEV, Institute of Molecular Genetics of the Czech Academy of Sciences, 252 42 Vestec, Czech Republic.
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Axin Family of Scaffolding Proteins in Development: Lessons from C. elegans. J Dev Biol 2019; 7:jdb7040020. [PMID: 31618970 PMCID: PMC6956378 DOI: 10.3390/jdb7040020] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2019] [Revised: 10/07/2019] [Accepted: 10/11/2019] [Indexed: 12/21/2022] Open
Abstract
Scaffold proteins serve important roles in cellular signaling by integrating inputs from multiple signaling molecules to regulate downstream effectors that, in turn, carry out specific biological functions. One such protein, Axin, represents a major evolutionarily conserved scaffold protein in metazoans that participates in the WNT pathway and other pathways to regulate diverse cellular processes. This review summarizes the vast amount of literature on the regulation and functions of the Axin family of genes in eukaryotes, with a specific focus on Caenorhabditis elegans development. By combining early studies with recent findings, the review is aimed to serve as an updated reference for the roles of Axin in C. elegans and other model systems.
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García de Herreros A, Duñach M. Intracellular Signals Activated by Canonical Wnt Ligands Independent of GSK3 Inhibition and β-Catenin Stabilization. Cells 2019; 8:cells8101148. [PMID: 31557964 PMCID: PMC6829497 DOI: 10.3390/cells8101148] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Revised: 09/19/2019] [Accepted: 09/21/2019] [Indexed: 12/31/2022] Open
Abstract
In contrast to non-canonical ligands, canonical Wnts promote the stabilization of β-catenin, which is a prerequisite for formation of the TCF4/β-catenin transcriptional complex and activation of its target genes. This pathway is initiated by binding of Wnt ligands to the Frizzled/LRP5/6 receptor complex, and it increases the half-life of β-catenin by precluding the phosphorylation of β-catenin by GSK3 and its binding to the βTrCP1 ubiquitin ligase. Other intercellular signals are also activated by Wnt ligands that do not inhibit GSK3 and increase β-catenin protein but that either facilitate β-catenin transcriptional activity or stimulate other transcriptional factors that cooperate with it. In this review, we describe the layers of complexity of these signals and discuss their crosstalk with β-catenin in activation of transcriptional targets.
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Affiliation(s)
- Antonio García de Herreros
- Programa de Recerca en Càncer, Institut Hospital del Mar d'Investigacions Mèdiques (IMIM), Unidad Asociada CSIC, and Departament de Ciències Experimentals i de la Salut, Universitat Pompeu Fabra, E-08003 Barcelona, Spain.
| | - Mireia Duñach
- Departament de Bioquímica i Biologia Molecular, CEB, Facultat de Medicina, Universitat Autònoma de Barcelona, E-08193 Bellaterra, Spain.
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Ji L, Lu B, Zamponi R, Charlat O, Aversa R, Yang Z, Sigoillot F, Zhu X, Hu T, Reece-Hoyes JS, Russ C, Michaud G, Tchorz JS, Jiang X, Cong F. USP7 inhibits Wnt/β-catenin signaling through promoting stabilization of Axin. Nat Commun 2019; 10:4184. [PMID: 31519875 PMCID: PMC6744515 DOI: 10.1038/s41467-019-12143-3] [Citation(s) in RCA: 72] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Accepted: 08/20/2019] [Indexed: 12/19/2022] Open
Abstract
Axin is a key scaffolding protein responsible for the formation of the β-catenin destruction complex. Stability of Axin protein is regulated by the ubiquitin-proteasome system, and modulation of cellular concentration of Axin protein has a profound effect on Wnt/β-catenin signaling. Although E3s promoting Axin ubiquitination have been identified, the deubiquitinase responsible for Axin deubiquitination and stabilization remains unknown. Here, we identify USP7 as a potent negative regulator of Wnt/β-catenin signaling through CRISPR screens. Genetic ablation or pharmacological inhibition of USP7 robustly increases Wnt/β-catenin signaling in multiple cellular systems. USP7 directly interacts with Axin through its TRAF domain, and promotes deubiquitination and stabilization of Axin. Inhibition of USP7 regulates osteoblast differentiation and adipocyte differentiation through increasing Wnt/β-catenin signaling. Our study reveals a critical mechanism that prevents excessive degradation of Axin and identifies USP7 as a target for sensitizing cells to Wnt/β-catenin signaling. Axin is a scaffolding protein known for its role in Wnt signalling that can be marked with a variety of post-translational modifications. Here, Cong et al. demonstrate that USP7 de-ubiquinates Axin and that canonical Wnt signaling output can be increased with USP7 inhibitors.
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Affiliation(s)
- Lei Ji
- Novartis Institutes for Biomedical Research, Novartis Pharma AG, Cambridge, MA, USA
| | - Bo Lu
- Novartis Institutes for Biomedical Research, Novartis Pharma AG, Cambridge, MA, USA
| | - Raffaella Zamponi
- Novartis Institutes for Biomedical Research, Novartis Pharma AG, Cambridge, MA, USA.,Azienda USL-IRCCS di Reggio Emilia, Viale Risorgimento 80, 42123, Reggio Emila, Italy
| | - Olga Charlat
- Novartis Institutes for Biomedical Research, Novartis Pharma AG, Cambridge, MA, USA
| | - Robert Aversa
- Novartis Institutes for Biomedical Research, Novartis Pharma AG, Cambridge, MA, USA
| | - Zinger Yang
- Novartis Institutes for Biomedical Research, Novartis Pharma AG, Cambridge, MA, USA
| | - Frederic Sigoillot
- Novartis Institutes for Biomedical Research, Novartis Pharma AG, Cambridge, MA, USA
| | - Xiaoping Zhu
- Novartis Institutes for Biomedical Research, Novartis Pharma AG, Cambridge, MA, USA
| | - Tiancen Hu
- Novartis Institutes for Biomedical Research, Novartis Pharma AG, Cambridge, MA, USA
| | - John S Reece-Hoyes
- Novartis Institutes for Biomedical Research, Novartis Pharma AG, Cambridge, MA, USA
| | - Carsten Russ
- Novartis Institutes for Biomedical Research, Novartis Pharma AG, Cambridge, MA, USA
| | - Gregory Michaud
- Novartis Institutes for Biomedical Research, Novartis Pharma AG, Cambridge, MA, USA
| | - Jan S Tchorz
- Novartis Institutes for Biomedical Research, Novartis Pharma AG, Basel, Switzerland
| | - Xiaomo Jiang
- Novartis Institutes for Biomedical Research, Novartis Pharma AG, Cambridge, MA, USA
| | - Feng Cong
- Novartis Institutes for Biomedical Research, Novartis Pharma AG, Cambridge, MA, USA.
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Li N, Lu N, Xie C. The Hippo and Wnt signalling pathways: crosstalk during neoplastic progression in gastrointestinal tissue. FEBS J 2019; 286:3745-3756. [PMID: 31342636 DOI: 10.1111/febs.15017] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2019] [Revised: 06/24/2019] [Accepted: 07/22/2019] [Indexed: 12/24/2022]
Abstract
The Hippo and Wnt signalling pathways play crucial roles in maintaining tissue homeostasis and organ size by orchestrating cell proliferation, differentiation and apoptosis. These pathways have been frequently found to be dysregulated in human cancers. While the canonical signal transduction of Hippo and Wnt has been well studied, emerging evidence shows that these two signalling pathways contribute to and exhibit overlapping functions in gastrointestinal (GI) tumorigenesis. In fact, the core effectors YAP/TAZ in Hippo signalling pathway cooperate with β-catenin in Wnt signalling pathway to promote GI neoplasia. Here, we provide a brief review to summarize the molecular mechanisms underlying the crosstalk between these two pathways and elucidate their involvement in GI tumorigenesis, particularly focusing on the intestine, stomach and liver.
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Affiliation(s)
- Nianshuang Li
- Department of Gastroenterology, The First Affiliated Hospital of Nanchang University, China
| | - Nonghua Lu
- Department of Gastroenterology, The First Affiliated Hospital of Nanchang University, China
| | - Chuan Xie
- Department of Gastroenterology, The First Affiliated Hospital of Nanchang University, China
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47
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Tan T, Chen J, Hu Y, Wang N, Chen Y, Yu T, Lin D, Yang S, Luo J, Luo X. Dihydrotanshinone I inhibits the growth of osteosarcoma through the Wnt/β-catenin signaling pathway. Onco Targets Ther 2019; 12:5111-5122. [PMID: 31308689 PMCID: PMC6613458 DOI: 10.2147/ott.s204574] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2019] [Accepted: 05/28/2019] [Indexed: 12/13/2022] Open
Abstract
Background: Osteosarcoma is a common malignant tumor, with relatively lower survival rates in adolescents. Dihydrotanshinone I (DHI) was extracted from the traditional Chinese medicine Salvia miltiorrhiza and was shown to inhibit several types of cancer. Purpose: To explore the effect of DHI on the proliferation, migration, invasion, and apoptosis of osteosarcoma cells, as well as the possible molecular mechanism. Methods: The effect of DHI on the proliferation of osteosarcoma was detected by crystal violet assay, MTT assay, colony formation assay. The effects of DHI on the migration and invasion of osteosarcoma were detected by wound healing assays, cell migration and invasion assays. The effect of DHI on apoptosis of osteosarcoma was detected by cell apoptosis assay and Hoechst apoptosis staining. The protein expression levels were detected by Western blotting assay. The activity of Wnt/β-Catenin signaling pathway was detected by luciferase reporter assay and Western blot. The inhibitory effect of DHI on osteosarcoma in vivo was analyzed by an orthotopic OS tumor animal model and immunohistochemistry. Result: DHI may inhibit the proliferation, decrease the migration, reduce the invasion, and promote the apoptosis of osteosarcoma cells. In vivo mouse model, DHI can inhibit the formation of osteosarcoma. In terms of mechanism, DHI may inhibit both the transcriptional activity and the total protein level of β-catenin. Conclusion: DHI may inhibit the proliferation, migration, and invasion as well as induce the apoptosis of osteosarcoma cells, possibly through suppressing the Wnt/β-catenin signaling pathway.
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Affiliation(s)
- Tao Tan
- Department of Orthopaedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing400010, People’s Republic of China
| | - Jin Chen
- Department of Dermatology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400010, People’s Republic of China
| | - Yaxin Hu
- The Affiliated Hospital, Guizhou Medical University, Guiyang 550004, People’s Republic of China
| | - Nan Wang
- Department of Orthopaedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing400010, People’s Republic of China
| | - Yangmei Chen
- Department of Dermatology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400010, People’s Republic of China
| | - Tingting Yu
- Key Laboratory of Clinical Diagnosis of Education Ministry, College of Laboratory Medicine, Chongqing Medical University, Chongqing400016, People’s Republic of China
| | - Duanyang Lin
- Department of Orthopaedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing400010, People’s Republic of China
| | - Shengdong Yang
- Department of Orthopaedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing400010, People’s Republic of China
| | - Jinyong Luo
- Key Laboratory of Clinical Diagnosis of Education Ministry, College of Laboratory Medicine, Chongqing Medical University, Chongqing400016, People’s Republic of China
| | - Xiaoji Luo
- Department of Orthopaedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing400010, People’s Republic of China
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48
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The Role of Ubiquitination in Regulating Embryonic Stem Cell Maintenance and Cancer Development. Int J Mol Sci 2019; 20:ijms20112667. [PMID: 31151253 PMCID: PMC6600158 DOI: 10.3390/ijms20112667] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2019] [Revised: 05/19/2019] [Accepted: 05/28/2019] [Indexed: 12/18/2022] Open
Abstract
Ubiquitination regulates nearly every aspect of cellular events in eukaryotes. It modifies intracellular proteins with 76-amino acid polypeptide ubiquitin (Ub) and destines them for proteolysis or activity alteration. Ubiquitination is generally achieved by a tri-enzyme machinery involving ubiquitin activating enzymes (E1), ubiquitin conjugating enzymes (E2) and ubiquitin ligases (E3). E1 activates Ub and transfers it to the active cysteine site of E2 via a transesterification reaction. E3 coordinates with E2 to mediate isopeptide bond formation between Ub and substrate protein. The E1-E2-E3 cascade can create diverse types of Ub modifications, hence effecting distinct outcomes on the substrate proteins. Dysregulation of ubiquitination results in severe consequences and human diseases. There include cancers, developmental defects and immune disorders. In this review, we provide an overview of the ubiquitination machinery and discuss the recent progresses in the ubiquitination-mediated regulation of embryonic stem cell maintenance and cancer biology.
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49
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Schaefer KN, Peifer M. Wnt/Beta-Catenin Signaling Regulation and a Role for Biomolecular Condensates. Dev Cell 2019; 48:429-444. [PMID: 30782412 PMCID: PMC6386181 DOI: 10.1016/j.devcel.2019.01.025] [Citation(s) in RCA: 123] [Impact Index Per Article: 24.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2018] [Revised: 12/06/2018] [Accepted: 01/29/2019] [Indexed: 12/19/2022]
Abstract
Wnt/β-Catenin signaling plays key roles in tissue homeostasis and cell fate decisions in embryonic and post-embryonic development across the animal kingdom. As a result, pathway mutations are associated with developmental disorders and many human cancers. The multiprotein destruction complex keeps signaling off in the absence of Wnt ligands and needs to be downregulated for pathway activation. We discuss new insights into destruction complex activity and regulation, highlighting parallels to the control of other cell biological processes by biomolecular condensates that form by phase separation to suggest that the destruction complex acts as a biomolecular condensate in Wnt pathway regulation.
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Affiliation(s)
- Kristina N Schaefer
- Curriculum in Genetics and Molecular Biology, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Mark Peifer
- Curriculum in Genetics and Molecular Biology, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA; Department of Biology, University of North Carolina at Chapel Hill, CB#3280, Chapel Hill, NC 27599-3280, USA; Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA.
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50
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Liu J, Feng K, Ren Y. In silico studies on potential TNKS inhibitors: a combination of pharmacophore and 3D-QSAR modelling, virtual screening, molecular docking and molecular dynamics. J Biomol Struct Dyn 2018; 37:3803-3821. [DOI: 10.1080/07391102.2018.1528887] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Jianxin Liu
- School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai, China
| | - Kairui Feng
- School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai, China
| | - Yujie Ren
- School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai, China
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