1
|
Zhang F, Xu J, Yuan Q, Xie Y, Zhang L, Zhang J, Xu Z, Liu M. Deletion of ZNRF2 Exacerbates MPTP-Induced Parkinson's Disease by Activating mTOR-Mediated Neuroinflammatory Pathways. Mol Neurobiol 2025:10.1007/s12035-025-05044-8. [PMID: 40402410 DOI: 10.1007/s12035-025-05044-8] [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: 11/21/2024] [Accepted: 05/06/2025] [Indexed: 05/23/2025]
Abstract
Parkinson's disease (PD) imposes a significant health burden among older adults and may be related to zinc and ring finger 2 (ZNRF2)-a member of the ubiquitination family. To investigate the role and mechanism of action of ZNRF2 in the regulation of mammalian target of rapamycin (mTOR)-mediated neuroinflammation in a mouse model of PD. Healthy mice were injected intraperitoneally with either saline (control) or MPTP 30 mg/kg. Mouse behavior was tested using rotarod and open field tests. The distribution and expression of tyrosine hydroxylase (TH) were determined by immunoblotting and immunohistochemistry. Inflammatory factors were evaluated using immunoblotting, enzyme-linked immunosorbent assay, and immunofluorescence assay. Compared with mice injected with saline, MPTP-treated mice showed significantly impaired locomotor activity, a significant decrease in the number of TH neurons, and a markedly altered morphology. ZNRF2 expression was significantly increased in the mesencephalon of MPTP-treated mice compared to that in control mice. ZNRF2 knockdown exacerbated motor dysfunction, accelerated dopamine neuron degeneration and death, increased the levels of pro-inflammatory factors (e.g., interleukin (IL)-1β, IL-6), and suppressed the expression of anti-inflammatory factors (e.g., IL-4, IL-10) in the central nervous system of MPTP-treated mice, with more pronounced activation of microglia and astrocytes. ZNRF2 knockdown significantly elevated phosphorylated mTOR protein levels after MPTP treatment; subsequently, phosphorylated mTOR protein levels were inhibited; dyskinesia and dopamine neuronal damage were significantly ameliorated, and neuroinflammation was suppressed in PD mice. ZNRF2 regulates the pathogenesis of MPTP-induced PD in mice via mechanisms related to mTOR-mediated neuroinflammation.
Collapse
Affiliation(s)
- Fanshi Zhang
- Department of Neurology, Affiliated Hospital of Zunyi Medical University, Huichuan District, No. 149, Dalian Road, Zunyi, 563000, China
| | - Jingqing Xu
- Department of Neurology, Affiliated Hospital of Zunyi Medical University, Huichuan District, No. 149, Dalian Road, Zunyi, 563000, China
| | - Qi Yuan
- Department of Neurology, Affiliated Hospital of Zunyi Medical University, Huichuan District, No. 149, Dalian Road, Zunyi, 563000, China
| | - Yuling Xie
- Department of Neurology, Affiliated Hospital of Zunyi Medical University, Huichuan District, No. 149, Dalian Road, Zunyi, 563000, China
| | - Li Zhang
- Department of Neurology, Affiliated Hospital of Zunyi Medical University, Huichuan District, No. 149, Dalian Road, Zunyi, 563000, China
| | - Jun Zhang
- Department of Neurology, Affiliated Hospital of Zunyi Medical University, Huichuan District, No. 149, Dalian Road, Zunyi, 563000, China.
| | - Zucai Xu
- Department of Neurology, Affiliated Hospital of Zunyi Medical University, Huichuan District, No. 149, Dalian Road, Zunyi, 563000, China.
- The Collaborative Innovation Center of Tissue Damage Repair and Regeneration Medicine, Zunyi Medical University, Zunyi, China.
| | - Mei Liu
- Department of Neurology, Affiliated Hospital of Zunyi Medical University, Huichuan District, No. 149, Dalian Road, Zunyi, 563000, China.
| |
Collapse
|
2
|
Chen YY, Liu CX, Liu HX, Wen SY. The Emerging Roles of Vacuolar-Type ATPase-Dependent Lysosomal Acidification in Cardiovascular Disease. Biomolecules 2025; 15:525. [PMID: 40305271 PMCID: PMC12024769 DOI: 10.3390/biom15040525] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2025] [Revised: 03/27/2025] [Accepted: 04/01/2025] [Indexed: 05/02/2025] Open
Abstract
The vacuolar-type ATPase (V-ATPase) is a multi-subunit enzyme complex that maintains lysosomal acidification, a critical process for cellular homeostasis. By controlling the pH within lysosomes, V-ATPase contributes to overall cellular homeostasis, helping to maintain a balance between the degradation and synthesis of cellular components. Dysfunction of V-ATPase impairs lysosomal acidification, leading to the accumulation of undigested materials and contributing to various diseases, including cardiovascular diseases (CVDs) like atherosclerosis and myocardial disease. Furthermore, V-ATPase's role in lysosomal function suggests potential therapeutic strategies targeting this enzyme complex to mitigate cardiovascular disease progression. Understanding the mechanisms by which V-ATPase influences cardiovascular pathology is essential for developing novel treatments aimed at improving outcomes in patients with heart and vascular diseases.
Collapse
Affiliation(s)
- Yan-Yan Chen
- School of Medicine, Jiangsu University, Zhenjiang 212013, China
| | - Cai-Xia Liu
- College of Traditional Chinese Medicine and Food Engineering, Shanxi University of Chinese Medicine, Taiyuan 030024, China; (C.-X.L.); (H.-X.L.)
| | - Hai-Xin Liu
- College of Traditional Chinese Medicine and Food Engineering, Shanxi University of Chinese Medicine, Taiyuan 030024, China; (C.-X.L.); (H.-X.L.)
| | - Shi-Yuan Wen
- College of Basic Medical Sciences, Shanxi Medical University, Taiyuan 030001, China
| |
Collapse
|
3
|
Kobia FM, Castro E Almeida L, Paganoni AJ, Carminati F, Andronache A, Lavezzari F, Wade M, Vaccari T. Novel determinants of NOTCH1 trafficking and signaling in breast epithelial cells. Life Sci Alliance 2025; 8:e202403122. [PMID: 39663000 PMCID: PMC11633778 DOI: 10.26508/lsa.202403122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2024] [Revised: 11/29/2024] [Accepted: 12/02/2024] [Indexed: 12/13/2024] Open
Abstract
The evolutionarily conserved Notch signaling pathway controls cell-cell communication, enacting cell fate decisions during development and tissue homeostasis. Its dysregulation is associated with a wide range of diseases, including congenital disorders and cancers. Signaling outputs depend on maturation of Notch receptors and trafficking to the plasma membrane, endocytic uptake and sorting, lysosomal and proteasomal degradation, and ligand-dependent and independent proteolytic cleavages. We devised assays to follow quantitatively the trafficking and signaling of endogenous human NOTCH1 receptor in breast epithelial cells in culture. Based on such analyses, we executed a high-content screen of 2,749 human genes to identify new regulators of Notch that might be amenable to pharmacologic intervention. We uncovered 39 new NOTCH1 modulators for NOTCH1 trafficking and signaling. Among them, we find that PTPN23 and HCN2 act as positive NOTCH1 regulators by promoting endocytic trafficking and NOTCH1 maturation in the Golgi apparatus, respectively, whereas SGK3 serves as a negative regulator that can be modulated by pharmacologic inhibition. Our findings might be relevant in the search of new strategies to counteract pathologic Notch signaling.
Collapse
Affiliation(s)
- Francis M Kobia
- Dipartimento di Bioscienze, Università degli Studi di Milano, Milano, Italy
| | | | - Alyssa Jj Paganoni
- Dipartimento di Bioscienze, Università degli Studi di Milano, Milano, Italy
| | | | - Adrian Andronache
- Center for Genomic Science of IIT@SEMM, Fondazione Istituto Italiano di Tecnologia (IIT), Milan, Italy
| | | | - Mark Wade
- Center for Genomic Science of IIT@SEMM, Fondazione Istituto Italiano di Tecnologia (IIT), Milan, Italy
| | - Thomas Vaccari
- Dipartimento di Bioscienze, Università degli Studi di Milano, Milano, Italy
| |
Collapse
|
4
|
Henn D, Yang X, Li M. Lysosomal quality control Review. Autophagy 2025:1-20. [PMID: 39968899 DOI: 10.1080/15548627.2025.2469206] [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: 10/20/2024] [Revised: 02/10/2025] [Accepted: 02/14/2025] [Indexed: 02/20/2025] Open
Abstract
Healthy cells need functional lysosomes to degrade cargo delivered by autophagy and endocytosis. Defective lysosomes can lead to severe conditions such as lysosomal storage diseases (LSDs) and neurodegeneration. To maintain lysosome integrity and functionality, cells have evolved multiple quality control pathways corresponding to different types of stress and damage. These can be divided into five levels: regulation, reformation, repair, removal, and replacement. The different levels of lysosome quality control often work together to maintain the integrity of the lysosomal network. This review summarizes the different quality control pathways and discusses the less-studied area of lysosome membrane protein regulation and degradation, highlighting key unanswered questions in the field.Abbreviation: ALR: autophagic lysosome reformation; CASM: conjugation of ATG8 to single membranes: ER: endoplasmic reticulum; ESCRT: endosomal sorting complexes required for transport; ILF: intralumenal fragment; LSD: lysosomal storage disease; LYTL: lysosomal tubulation/sorting driven by LRRK2; PITT: phosphoinositide-initiated membrane tethering and lipid transport; PE: phosphatidylethanolamine; PLR: phagocytic lysosome reformation; PS: phosphatidylserine; PtdIns3P: phosphatidylinositol-3-phosphate; PtdIns4P: phosphatidylinositol-4-phosphate; PtdIns(4,5)P2: phosphatidylinositol-4,5-bisphosphate; V-ATPase: vacuolar-type H+-translocating ATPase.
Collapse
Affiliation(s)
- Danielle Henn
- Department of Molecular, Cellular, and Developmental Biology, University of Michigan, Ann Arbor, MI, USA
| | - Xi Yang
- Department of Biological Sciences, Knoebel Institute for Healthy Aging, University of Denver, Denver, CO, USA
| | - Ming Li
- Department of Molecular, Cellular, and Developmental Biology, University of Michigan, Ann Arbor, MI, USA
| |
Collapse
|
5
|
Xi Y, Yang Q, Wang Y, An W, Huang X, Sun C, Luo W, Shi C, Wang Q, Pan H, Chen Q, Li X, Hua D, Yu S, Zhou X. ZNRF2 is essential for gliomagenesis through orchestrating glycolysis and acts as a promising therapeutic target in glioma. J Transl Med 2025; 23:185. [PMID: 39953597 PMCID: PMC11829375 DOI: 10.1186/s12967-025-06202-1] [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: 09/30/2024] [Accepted: 02/03/2025] [Indexed: 02/17/2025] Open
Abstract
BACKGROUND Improving glioma treatment effectiveness requires a thorough understanding of gliomagenesis. Emerging evidences have proved that zinc and ring finger 2 (ZNRF2) contributes to development of various human malignancies. Nevertheless, a comprehensive study of ZNRF2's role in glioma is absent currently. METHODS Utilizing open resources from Chinese Glioma Genome Atlas (CGGA), Gene Expression Omnibus (GEO), The Cancer Genome Atlas (TCGA), Connectivity Map (cMap) and other bioinformatic tools, we systematically examined the expression, clinical significance, prognostic value, regulated biological processes, immune infiltration, and potential inhibitors of ZNRF2 in gliomas. Functional experiments were also performed to validate its oncogenic roles in glioblastoma (GBM) cells. RESULTS Our findings revealed that ZNRF2 expression was elevated in gliomas compared to normal brains, and its higher levels were correlated with increased grades and worse patient prognosis. The immune analysis suggested that immunotherapies targeting immune checkpoint genes could be beneficial for glioma patients with elevated ZNRF2 expression. Endogenous ZNRF2 knockdown impaired GBM cell proliferation, G2/M cell cycle progression and glycolysis, which was revealed by reduced ATP, pyruvic acid, lactic acid levels and less glucose uptake. Finally, we identified methylprednisolone (MP) as a potential ZNRF2 inhibitor and validated its anti-glioma effects in vitro. MP also enhanced the sensitization of GBM cells to temozolomide (TMZ), the primary chemotherapeutic agent for GBM in clinic. CONCLUSIONS Taken together, our study demonstrated ZNRF2 as an essential tumor-promoting factor by favoring GBM cell proliferation and glycolysis. Our findings suggested that ZNRF2 might serve as a novel independent prognostic biomarker and promising therapeutic target for glioma patients.
Collapse
Affiliation(s)
- Yunlan Xi
- Department of Neuropathology, Tianjin Neurological Institute, Tianjin Key Laboratory of Injuries, Variations, and Regeneration of the Nervous System, Key Laboratory of Post-trauma Neuro-repair and Regeneration in Central Nervous System of Education Ministry, Tianjin Medical University General Hospital, Tianjin, P. R. China
| | - Qingqing Yang
- Department of Neuropathology, Tianjin Neurological Institute, Tianjin Key Laboratory of Injuries, Variations, and Regeneration of the Nervous System, Key Laboratory of Post-trauma Neuro-repair and Regeneration in Central Nervous System of Education Ministry, Tianjin Medical University General Hospital, Tianjin, P. R. China
| | - Yixuan Wang
- Tianjin Key Laboratory of Lung Cancer Metastasis and Tumor Microenvironment, Department of Lung Cancer Surgery, Tianjin Lung Cancer Institute, Tianjin Medical University General Hospital, Tianjin, China
| | - Wenzhe An
- Department of Neuropathology, Tianjin Neurological Institute, Tianjin Key Laboratory of Injuries, Variations, and Regeneration of the Nervous System, Key Laboratory of Post-trauma Neuro-repair and Regeneration in Central Nervous System of Education Ministry, Tianjin Medical University General Hospital, Tianjin, P. R. China
| | - Xuewei Huang
- Department of Neuropathology, Tianjin Neurological Institute, Tianjin Key Laboratory of Injuries, Variations, and Regeneration of the Nervous System, Key Laboratory of Post-trauma Neuro-repair and Regeneration in Central Nervous System of Education Ministry, Tianjin Medical University General Hospital, Tianjin, P. R. China
| | - Cuiyun Sun
- Department of Neuropathology, Tianjin Neurological Institute, Tianjin Key Laboratory of Injuries, Variations, and Regeneration of the Nervous System, Key Laboratory of Post-trauma Neuro-repair and Regeneration in Central Nervous System of Education Ministry, Tianjin Medical University General Hospital, Tianjin, P. R. China
| | - Wenjun Luo
- Department of Neuropathology, Tianjin Neurological Institute, Tianjin Key Laboratory of Injuries, Variations, and Regeneration of the Nervous System, Key Laboratory of Post-trauma Neuro-repair and Regeneration in Central Nervous System of Education Ministry, Tianjin Medical University General Hospital, Tianjin, P. R. China
| | - Cuijuan Shi
- Department of Neuropathology, Tianjin Neurological Institute, Tianjin Key Laboratory of Injuries, Variations, and Regeneration of the Nervous System, Key Laboratory of Post-trauma Neuro-repair and Regeneration in Central Nervous System of Education Ministry, Tianjin Medical University General Hospital, Tianjin, P. R. China
| | - Qian Wang
- Department of Neuropathology, Tianjin Neurological Institute, Tianjin Key Laboratory of Injuries, Variations, and Regeneration of the Nervous System, Key Laboratory of Post-trauma Neuro-repair and Regeneration in Central Nervous System of Education Ministry, Tianjin Medical University General Hospital, Tianjin, P. R. China
| | - Hongli Pan
- Tianjin Key Laboratory of Lung Cancer Metastasis and Tumor Microenvironment, Department of Lung Cancer Surgery, Tianjin Lung Cancer Institute, Tianjin Medical University General Hospital, Tianjin, China
| | - Qiang Chen
- Department of Respiratory and Critical Medicine, Tianjin Chest Hospital, Tianjin, P.R. China
- Tianjin Medical University, Tianjin, P.R. China
| | - Xuebing Li
- Tianjin Key Laboratory of Lung Cancer Metastasis and Tumor Microenvironment, Department of Lung Cancer Surgery, Tianjin Lung Cancer Institute, Tianjin Medical University General Hospital, Tianjin, China
| | - Dan Hua
- Department of Neuropathology, Tianjin Neurological Institute, Tianjin Key Laboratory of Injuries, Variations, and Regeneration of the Nervous System, Key Laboratory of Post-trauma Neuro-repair and Regeneration in Central Nervous System of Education Ministry, Tianjin Medical University General Hospital, Tianjin, P. R. China.
- Department of Neuropathology, Tianjin Neurological Institute, Tianjin Medical University General Hospital, 154 Anshan Road, Tianjin, 300052, China.
| | - Shizhu Yu
- Department of Neuropathology, Tianjin Neurological Institute, Tianjin Key Laboratory of Injuries, Variations, and Regeneration of the Nervous System, Key Laboratory of Post-trauma Neuro-repair and Regeneration in Central Nervous System of Education Ministry, Tianjin Medical University General Hospital, Tianjin, P. R. China.
- Department of Neuropathology, Tianjin Neurological Institute, Tianjin Medical University General Hospital, 154 Anshan Road, Tianjin, 300052, China.
| | - Xuexia Zhou
- Department of Neuropathology, Tianjin Neurological Institute, Tianjin Key Laboratory of Injuries, Variations, and Regeneration of the Nervous System, Key Laboratory of Post-trauma Neuro-repair and Regeneration in Central Nervous System of Education Ministry, Tianjin Medical University General Hospital, Tianjin, P. R. China.
- Department of Neuropathology, Tianjin Neurological Institute, Tianjin Medical University General Hospital, 154 Anshan Road, Tianjin, 300052, China.
| |
Collapse
|
6
|
Xiong X, Huang B, Gan Z, Liu W, Xie Y, Zhong J, Zeng X. Ubiquitin-modifying enzymes in thyroid cancer:Mechanisms and functions. Heliyon 2024; 10:e34032. [PMID: 39091932 PMCID: PMC11292542 DOI: 10.1016/j.heliyon.2024.e34032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2024] [Revised: 06/25/2024] [Accepted: 07/02/2024] [Indexed: 08/04/2024] Open
Abstract
Thyroid cancer is the most common malignant tumor of the endocrine system, and evidence suggests that post-translational modifications (PTMs) and epigenetic alterations play an important role in its development. Recently, there has been increasing evidence linking dysregulation of ubiquitinating enzymes and deubiquitinases with thyroid cancer. This review aims to summarize our current understanding of the role of ubiquitination-modifying enzymes in thyroid cancer, including their regulation of oncogenic pathways and oncogenic proteins. The role of ubiquitination-modifying enzymes in thyroid cancer development and progression requires further study, which will provide new insights into thyroid cancer prevention, treatment and the development of novel agents.
Collapse
Affiliation(s)
- Xingmin Xiong
- Department of Thyroid and Hernia Surgery, First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi, 341000, China
- Key Laboratory of Prevention and Treatment of Cardiovascular and Cerebrovascular Diseases, Ministry of Education, Gannan Medical University, 323 National Road, Ganzhou, 341000, Jiangxi, China
| | - BenBen Huang
- Key Laboratory of Prevention and Treatment of Cardiovascular and Cerebrovascular Diseases, Ministry of Education, Gannan Medical University, 323 National Road, Ganzhou, 341000, Jiangxi, China
| | - Zhe Gan
- Ganzhou Key Laboratory of Thyroid Cancer, First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi, 341000, China
| | - Weixiang Liu
- Institute of Thyroid and Parathyroid Disease, Gannan Medical University, Ganzhou, Jiangxi, 341000, China
| | - Yang Xie
- Department of Thyroid and Hernia Surgery, First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi, 341000, China
- Ganzhou Key Laboratory of Thyroid Cancer, First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi, 341000, China
| | - Jianing Zhong
- Key Laboratory of Prevention and Treatment of Cardiovascular and Cerebrovascular Diseases, Ministry of Education, Gannan Medical University, 323 National Road, Ganzhou, 341000, Jiangxi, China
| | - Xiangtai Zeng
- Department of Thyroid and Hernia Surgery, First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi, 341000, China
- Institute of Thyroid and Parathyroid Disease, Gannan Medical University, Ganzhou, Jiangxi, 341000, China
| |
Collapse
|
7
|
Nicolson S, Manning JA, Lim Y, Jiang X, Kolze E, Dayan S, Umargamwala R, Xu T, Sandow JJ, Webb AI, Kumar S, Denton D. The Drosophila ZNRF1/2 homologue, detour, interacts with HOPS complex and regulates autophagy. Commun Biol 2024; 7:183. [PMID: 38360932 PMCID: PMC10869362 DOI: 10.1038/s42003-024-05834-1] [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: 12/14/2023] [Accepted: 01/18/2024] [Indexed: 02/17/2024] Open
Abstract
Autophagy, the process of elimination of cellular components by lysosomal degradation, is essential for animal development and homeostasis. Using the autophagy-dependent Drosophila larval midgut degradation model we identified an autophagy regulator, the RING domain ubiquitin ligase CG14435 (detour). Depletion of detour resulted in increased early-stage autophagic vesicles, premature tissue contraction, and overexpression of detour or mammalian homologues, ZNRF1 and ZNRF2, increased autophagic vesicle size. The ablation of ZNRF1 or ZNRF2 in mammalian cells increased basal autophagy. We identified detour interacting proteins including HOPS subunits, deep orange (dor/VPS18), Vacuolar protein sorting 16A (VPS16A), and light (lt/VPS41) and found that detour promotes their ubiquitination. The detour mutant accumulated autophagy-related proteins in young adults, displayed premature ageing, impaired motor function, and activation of innate immunity. Collectively, our findings suggest a role for detour in autophagy, likely through regulation of HOPS complex, with implications for healthy aging.
Collapse
Affiliation(s)
- Shannon Nicolson
- Centre for Cancer Biology, University of South Australia, Adelaide, SA, 5001, Australia
| | - Jantina A Manning
- Centre for Cancer Biology, University of South Australia, Adelaide, SA, 5001, Australia
| | - Yoon Lim
- Centre for Cancer Biology, University of South Australia, Adelaide, SA, 5001, Australia
| | - Xin Jiang
- Centre for Cancer Biology, University of South Australia, Adelaide, SA, 5001, Australia
| | - Erica Kolze
- Centre for Cancer Biology, University of South Australia, Adelaide, SA, 5001, Australia
- Faculty of Health and Medical Sciences, The University of Adelaide, Adelaide, SA, 5001, Australia
| | - Sonia Dayan
- Centre for Cancer Biology, University of South Australia, Adelaide, SA, 5001, Australia
| | - Ruchi Umargamwala
- Centre for Cancer Biology, University of South Australia, Adelaide, SA, 5001, Australia
| | - Tianqi Xu
- Centre for Cancer Biology, University of South Australia, Adelaide, SA, 5001, Australia
| | - Jarrod J Sandow
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, 3052, Australia
- Department of Medical Biology, University of Melbourne, Parkville, VIC, 3052, Australia
| | - Andrew I Webb
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, 3052, Australia
- Department of Medical Biology, University of Melbourne, Parkville, VIC, 3052, Australia
| | - Sharad Kumar
- Centre for Cancer Biology, University of South Australia, Adelaide, SA, 5001, Australia.
- Faculty of Health and Medical Sciences, The University of Adelaide, Adelaide, SA, 5001, Australia.
| | - Donna Denton
- Centre for Cancer Biology, University of South Australia, Adelaide, SA, 5001, Australia.
| |
Collapse
|
8
|
Shi F, Wu Y, Wang K, Wang J, Liu M, Sun X. A pancancer analysis of the oncogenic role of ZNRF2 in human tumours. J Cell Mol Med 2023; 27:3296-3312. [PMID: 37551845 PMCID: PMC10623518 DOI: 10.1111/jcmm.17900] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2023] [Revised: 06/19/2023] [Accepted: 07/30/2023] [Indexed: 08/09/2023] Open
Abstract
Finding effective treatments for cancer requires a thorough understanding of how it develops and progresses. Recent research has revealed the crucial role that Zinc and ring finger 2 (ZNRF2) play in the progression of non-small cell lung cancer (NSCLC) by controlling cell growth and death. However, a comprehensive analysis of ZNRF2's role in cancer as a whole has yet to be conducted. Our study sought to investigate the impact of ZNRF2 on diverse human tumours, as well as the molecular pathways involved, using databases such as TCGA (The Cancer Genome Atlas), GEO (Gene Expression Omnibus) and the Human Protein Atlas (HPA), as well as several bioinformatic tools. Our findings indicate that ZNRF2 is generally expressed at higher levels in tumours than in normal tissues, and in some cancers, its levels correlate positively with disease stage, potentially predicting a poor prognosis for patients. We also discovered genetic changes in ZNRF2 among cancer patients, as well as its relationship with cancer-related fibroblasts, endothelial cells and immune cell infiltration. Additionally, we explored potential molecular mechanisms of ZNRF2 in tumours, finding that it increases in hepatocellular carcinoma (HCC) tissues and that inhibiting its expression through ZNRF2 siRNA can limit HepG2 cell proliferation. Overall, our study provides a comprehensive overview of ZNRF2's oncogenic roles across various cancers.
Collapse
Affiliation(s)
- Fujie Shi
- State Key Laboratory of Natural Medicines, School of Life Science and TechnologyChina Pharmaceutical UniversityNanjingChina
- School of Life SciencesNanjing UniversityNanjingChina
| | - Yunfei Wu
- State Key Laboratory of Natural Medicines, School of Life Science and TechnologyChina Pharmaceutical UniversityNanjingChina
| | - Kai Wang
- Division of Trauma and Surgical Intensive Care UnitResearch Institute of General Surgery, Jinling Hospital, Medical School of Nanjing UniversityNanjingChina
| | - Jiafan Wang
- State Key Laboratory of Natural Medicines, School of Life Science and TechnologyChina Pharmaceutical UniversityNanjingChina
| | - Minghui Liu
- State Key Laboratory of Natural Medicines, School of Life Science and TechnologyChina Pharmaceutical UniversityNanjingChina
| | - Xinlei Sun
- State Key Laboratory of Natural Medicines, School of Life Science and TechnologyChina Pharmaceutical UniversityNanjingChina
| |
Collapse
|
9
|
Lin YS, Chang YC, Chao TL, Tsai YM, Jhuang SJ, Ho YH, Lai TY, Liu YL, Chen CY, Tsai CY, Hsueh YP, Chang SY, Chuang TH, Lee CY, Hsu LC. The Src-ZNRF1 axis controls TLR3 trafficking and interferon responses to limit lung barrier damage. J Exp Med 2023; 220:e20220727. [PMID: 37158982 PMCID: PMC10174191 DOI: 10.1084/jem.20220727] [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: 04/26/2022] [Revised: 01/23/2023] [Accepted: 03/02/2023] [Indexed: 05/10/2023] Open
Abstract
Type I interferons are important antiviral cytokines, but prolonged interferon production is detrimental to the host. The TLR3-driven immune response is crucial for mammalian antiviral immunity, and its intracellular localization determines induction of type I interferons; however, the mechanism terminating TLR3 signaling remains obscure. Here, we show that the E3 ubiquitin ligase ZNRF1 controls TLR3 sorting into multivesicular bodies/lysosomes to terminate signaling and type I interferon production. Mechanistically, c-Src kinase activated by TLR3 engagement phosphorylates ZNRF1 at tyrosine 103, which mediates K63-linked ubiquitination of TLR3 at lysine 813 and promotes TLR3 lysosomal trafficking and degradation. ZNRF1-deficient mice and cells are resistant to infection by encephalomyocarditis virus and SARS-CoV-2 because of enhanced type I interferon production. However, Znrf1-/- mice have exacerbated lung barrier damage triggered by antiviral immunity, leading to enhanced susceptibility to respiratory bacterial superinfections. Our study highlights the c-Src-ZNRF1 axis as a negative feedback mechanism controlling TLR3 trafficking and the termination of TLR3 signaling.
Collapse
Affiliation(s)
- You-Sheng Lin
- Institute of Molecular Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Yung-Chi Chang
- Institute of Molecular Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Tai-Ling Chao
- Department of Clinical Laboratory Sciences and Medical Biotechnology, College of Medicine, National Taiwan University, Taipei, Taiwan
- Genomics Research Center, Academia Sinica, Taipei, Taiwan
| | - Ya-Min Tsai
- Department of Clinical Laboratory Sciences and Medical Biotechnology, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Shu-Jhen Jhuang
- Department of Pathology and Laboratory Medicine, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan
| | - Yu-Hsin Ho
- Institute of Molecular Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Ting-Yu Lai
- Institute of Molecular Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Yi-Ling Liu
- Immunology Research Center, National Health Research Institutes, Zhunan, Taiwan
| | - Chiung-Ya Chen
- Institute of Molecular Biology, Academia Sinica, Taipei, Taiwan
| | - Ching-Yen Tsai
- Institute of Molecular Biology, Academia Sinica, Taipei, Taiwan
| | - Yi-Ping Hsueh
- Institute of Molecular Biology, Academia Sinica, Taipei, Taiwan
| | - Sui-Yuan Chang
- Department of Clinical Laboratory Sciences and Medical Biotechnology, College of Medicine, National Taiwan University, Taipei, Taiwan
- Department of Laboratory Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Tsung-Hsien Chuang
- Immunology Research Center, National Health Research Institutes, Zhunan, Taiwan
| | - Chih-Yuan Lee
- Institute of Molecular Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan
- Department of Surgery, National Taiwan University Hospital, Taipei City, Taiwan
| | - Li-Chung Hsu
- Institute of Molecular Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan
- Graduate Institute of Immunology, College of Medicine, National Taiwan University, Taipei, Taiwan
- Center of Precision Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan
| |
Collapse
|
10
|
Liu JT, Sun ZX, Zhong R, Zhang YD, Wang T, Hou YD, Bao JH, Zhang L, Chen B. ZNRF2 as an oncogene is transcriptionally regulated by CREB1 in breast cancer models. Hum Cell 2023:10.1007/s13577-023-00913-7. [PMID: 37165255 DOI: 10.1007/s13577-023-00913-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Accepted: 04/29/2023] [Indexed: 05/12/2023]
Abstract
E3 ubiquitin ligase Zinc and Ring Finger 2 (ZNRF2) has been demonstrated to be engaged in the development of multiple cancers. Nevertheless, the function of ZNRF2 in breast cancer (BC) still unclear. In this work, we firstly analyzed the differentially expressed genes in BC by bioinformatics and found that ZNRF2 was highly expressed in BC. Consistently, we further confirmed that ZNRF2 was upregulated in BC tissues compared with adjacent normal tissues, and this was positively correlated with the poor prognosis and the higher pathological grades of patients with BC. Functional assays performed on HCC1937 and MCF-7 cells indicated that silencing of ZNRF2 suppressed cell proliferation, as evidenced by the decrease in the expression of cyclin A, PCNA and cyclin D1. Flow cytometry and Hoechst staining showed that knockdown of ZNRF2 induced cell apoptosis, which was verified by the upregulation of apoptosis genes such as Bax, cleaved PARP and Bim. ZNRF2 knockdown also inhibited in vivo tumor growth. But, instead, ZNRF2-overexpressed BC cells exhibited obvious malignant phenotypes. Additionally, we observed that cAMP response element binding protein 1 (CREB1) directly bound to the promoter sequence of ZNRF2 and thus activating its transcription, suggesting that ZNRF2 is transcriptionally regulated by CREB1. Additionally, ZNRF2 knockdown could reverse the proliferation-promoting action of CREB1 on BC cells, Hence, this study demonstrated that ZNRF2 might serve as a prospective therapeutic target for BC.
Collapse
Affiliation(s)
- Jin-Tao Liu
- Department of Thyroid Surgery, Dalian Municipal Central Hospital, Dalian, Liaoning, China
| | - Zhen-Xuan Sun
- Graduate School, Dalian Medical University, Dalian, Liaoning, China
- Department of General Surgery, The First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning, China
| | - Rui Zhong
- Graduate School, Dalian Medical University, Dalian, Liaoning, China
| | - Yi-Dan Zhang
- Graduate School, Dalian Medical University, Dalian, Liaoning, China
| | - Teng Wang
- Graduate School, Dalian Medical University, Dalian, Liaoning, China
| | - Yu-Dong Hou
- Graduate School, China Medical University, Shenyang, Liaoning, China
| | - Jian-Heng Bao
- Graduate School, Dalian Medical University, Dalian, Liaoning, China
| | - Lei Zhang
- Department of Breast Surgery, The First Hospital of China Medical University, No. 155, Nanjing North Street, Shenyang, Liaoning, China.
| | - Bo Chen
- Department of Breast Surgery, The First Hospital of China Medical University, No. 155, Nanjing North Street, Shenyang, Liaoning, China.
| |
Collapse
|
11
|
Comparative Ubiquitination Proteomics Revealed the Salt Tolerance Mechanism in Sugar Beet Monomeric Additional Line M14. Int J Mol Sci 2022; 23:ijms232416088. [PMID: 36555729 PMCID: PMC9782053 DOI: 10.3390/ijms232416088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 12/04/2022] [Accepted: 12/06/2022] [Indexed: 12/23/2022] Open
Abstract
Post-translational modifications (PTMs) are important molecular processes that regulate organismal responses to different stresses. Ubiquitination modification is not only involved in human health but also plays crucial roles in plant growth, development, and responses to environmental stresses. In this study, we investigated the ubiquitination proteome changes in the salt-tolerant sugar beet monomeric additional line M14 under salt stress treatments. Based on the expression of the key genes of the ubiquitination system and the ubiquitination-modified proteins before and after salt stress, 30 min of 200 mM NaCl treatment and 6 h of 400 mM NaCl treatment were selected as time points. Through label-free proteomics, 4711 and 3607 proteins were identified in plants treated with 200 mM NaCl and 400 mM NaCl, respectively. Among them, 611 and 380 proteins were ubiquitinated, with 1085 and 625 ubiquitination sites, in the two salt stress conditions, respectively. A quantitative analysis revealed that 70 ubiquitinated proteins increased and 47 ubiquitinated proteins decreased. At the total protein level, 42 were induced and 20 were repressed with 200 mM NaCl, while 28 were induced and 27 were repressed with 400 mM NaCl. Gene ontology, KEGG pathway, protein interaction, and PTM crosstalk analyses were performed using the differentially ubiquitinated proteins. The differentially ubiquitinated proteins were mainly involved in cellular transcription and translation processes, signal transduction, metabolic pathways, and the ubiquitin/26S proteasome pathway. The uncovered ubiquitinated proteins constitute an important resource of the plant stress ubiquitinome, and they provide a theoretical basis for the marker-based molecular breeding of crops for enhanced stress tolerance.
Collapse
|
12
|
mTOR substrate phosphorylation in growth control. Cell 2022; 185:1814-1836. [PMID: 35580586 DOI: 10.1016/j.cell.2022.04.013] [Citation(s) in RCA: 230] [Impact Index Per Article: 76.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Revised: 04/05/2022] [Accepted: 04/07/2022] [Indexed: 12/20/2022]
Abstract
The target of rapamycin (TOR), discovered 30 years ago, is a highly conserved serine/threonine protein kinase that plays a central role in regulating cell growth and metabolism. It is activated by nutrients, growth factors, and cellular energy. TOR forms two structurally and functionally distinct complexes, TORC1 and TORC2. TOR signaling activates cell growth, defined as an increase in biomass, by stimulating anabolic metabolism while inhibiting catabolic processes. With emphasis on mammalian TOR (mTOR), we comprehensively reviewed the literature and identified all reported direct substrates. In the context of recent structural information, we discuss how mTORC1 and mTORC2, despite having a common catalytic subunit, phosphorylate distinct substrates. We conclude that the two complexes recruit different substrates to phosphorylate a common, minimal motif.
Collapse
|
13
|
Purine nucleotide depletion prompts cell migration by stimulating the serine synthesis pathway. Nat Commun 2022; 13:2698. [PMID: 35577785 PMCID: PMC9110385 DOI: 10.1038/s41467-022-30362-z] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Accepted: 04/22/2022] [Indexed: 12/14/2022] Open
Abstract
Purine nucleotides are necessary for various biological processes related to cell proliferation. Despite their importance in DNA and RNA synthesis, cellular signaling, and energy-dependent reactions, the impact of changes in cellular purine levels on cell physiology remains poorly understood. Here, we find that purine depletion stimulates cell migration, despite effective reduction in cell proliferation. Blocking purine synthesis triggers a shunt of glycolytic carbon into the serine synthesis pathway, which is required for the induction of cell migration upon purine depletion. The stimulation of cell migration upon a reduction in intracellular purines required one-carbon metabolism downstream of de novo serine synthesis. Decreased purine abundance and the subsequent increase in serine synthesis triggers an epithelial-mesenchymal transition (EMT) and, in cancer models, promotes metastatic colonization. Thus, reducing the available pool of intracellular purines re-routes metabolic flux from glycolysis into de novo serine synthesis, a metabolic change that stimulates a program of cell migration. Nucleotides are essential for different biological processes and have been also associated to cancer development. Depleting cellular nucleotides is a strategy commonly employed to target cancers. Here, the authors show that purine depletion induces serine synthesis to promote cancer cell migration and metastasis.
Collapse
|
14
|
Kitamura N, Fujiwara N, Hayakawa K, Ohama T, Sato K. Protein phosphatase 6 promotes neurite outgrowth by promoting mTORC2 activity in N2a cells. J Biochem 2021; 170:131-138. [PMID: 34314486 DOI: 10.1093/jb/mvab028] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Accepted: 03/08/2021] [Indexed: 11/14/2022] Open
Abstract
Understanding the molecular mechanism of neuronal differentiation is important to overcome the incurable diseases caused by nervous system damage. Neurite outgrowth is prerequisite for neuronal differentiation and regeneration, and cAMP response element-binding protein (CREB) is one of the major transcriptional factors positively regulating this process. Neuronal differentiation stimuli activate mammalian target of rapamycin (mTOR) complex 2 (mTORC2)/Akt signaling to phosphorylate CREB, however, the precise molecular mechanism of this event has not been fully understood. In this manuscript, we show that neuronal differentiation stimuli increased a protein level of protein phosphatase 6 (PP6), a member of type 2A Ser/Thr protein phosphatases. PP6 knockdown suppressed mTORC2/Akt/CREB signaling and results in failure of neurite outgrowth. SIN1 is a unique component of mTORC2 that enhances mTORC2 activity toward Akt when it is in dephosphorylated form. We found PP6 knockdown increased SIN1 phosphorylation. These data suggest that PP6 may positively regulate neurite outgrowth by dephosphorylating SIN1 to activate mTORC2/Akt/CREB signaling.
Collapse
Affiliation(s)
- Nao Kitamura
- Laboratory of Veterinary Pharmacology, Joint Faculty of Veterinary Medicine, Yamaguchi University, 1677-1 Yoshida, Yamaguchi 753-8515, Japan
| | | | - Koji Hayakawa
- Department of Toxicology, Faculty of Veterinary Medicine, Okayama University of Science, 1-3 Ikoinooka, Imabari, 794-8555 Ehime, Japan
| | - Takashi Ohama
- Laboratory of Veterinary Pharmacology, Joint Faculty of Veterinary Medicine, Yamaguchi University, 1677-1 Yoshida, Yamaguchi 753-8515, Japan
| | - Koichi Sato
- Laboratory of Veterinary Pharmacology, Joint Faculty of Veterinary Medicine, Yamaguchi University, 1677-1 Yoshida, Yamaguchi 753-8515, Japan
| |
Collapse
|
15
|
Gu C, Yang J, Luo Y, Ran D, Tan X, Xiang P, Fei H, Lu Y, Guo W, Tu Y, Liu X, Wang H. ZNRF2 attenuates focal cerebral ischemia/reperfusion injury in rats by inhibiting mTORC1-mediated autophagy. Exp Neurol 2021; 342:113759. [PMID: 33992580 DOI: 10.1016/j.expneurol.2021.113759] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 04/25/2021] [Accepted: 05/10/2021] [Indexed: 02/06/2023]
Abstract
Zinc and ring finger 2 (ZNRF2), an E3 ubiquitin ligase, plays a crucial role in many diseases. However, its role in cerebral ischemia/reperfusion injury (CIRI) still remains unknown. In this study, the function and molecular mechanism of ZNRF2 in CIRI in vivo and vitro was studied. ZNRF2 was found to be dramatically downregulated in CIRI. Overexpression of ZNRF2 could significantly reduce the neurological deficit, brain infarct volume and histopathological damage of cortex in middle cerebral artery occlusion/reperfusion. Concomitantly, overexpression of ZNRF2 increased the primary neuronal viability and decreased the neuronal apoptosis induced by oxygen-glucose deprivation and reoxygenation (OGD/R). Mechanistically, overexpression of ZNRF2 inhibited the over-induction of autophagy induced by OGD/R which was abolished by mTORC1 inhibitor rapamycin. It can be concluded that ZNRF2 plays a protective effect in CIRI and the underlying mechanism may be related to the inhibition of mTORC1-mediated autophagy.
Collapse
Affiliation(s)
- Chao Gu
- Key Laboratory of Biochemistry and Molecular Pharmacology, Department of Pharmacology, Chongqing Medical University, Chongqing 400016, China
| | - Junqing Yang
- Key Laboratory of Biochemistry and Molecular Pharmacology, Department of Pharmacology, Chongqing Medical University, Chongqing 400016, China
| | - Ying Luo
- Key Laboratory of Biochemistry and Molecular Pharmacology, Department of Pharmacology, Chongqing Medical University, Chongqing 400016, China
| | - Dongzhi Ran
- Key Laboratory of Biochemistry and Molecular Pharmacology, Department of Pharmacology, Chongqing Medical University, Chongqing 400016, China
| | - Xiaodan Tan
- Key Laboratory of Biochemistry and Molecular Pharmacology, Department of Pharmacology, Chongqing Medical University, Chongqing 400016, China
| | - Pu Xiang
- Key Laboratory of Biochemistry and Molecular Pharmacology, Department of Pharmacology, Chongqing Medical University, Chongqing 400016, China; Dianjiang People's Hospital of Chongqing, Dianjiang, Chongqing 408300, China
| | - Huizhi Fei
- Key Laboratory of Biochemistry and Molecular Pharmacology, Department of Pharmacology, Chongqing Medical University, Chongqing 400016, China
| | - Yi Lu
- Key Laboratory of Biochemistry and Molecular Pharmacology, Department of Pharmacology, Chongqing Medical University, Chongqing 400016, China
| | - Wenjia Guo
- Key Laboratory of Biochemistry and Molecular Pharmacology, Department of Pharmacology, Chongqing Medical University, Chongqing 400016, China
| | - Yujun Tu
- Key Laboratory of Biochemistry and Molecular Pharmacology, Department of Pharmacology, Chongqing Medical University, Chongqing 400016, China
| | - Xia Liu
- Key Laboratory of Biochemistry and Molecular Pharmacology, Department of Pharmacology, Chongqing Medical University, Chongqing 400016, China
| | - Hong Wang
- Key Laboratory of Biochemistry and Molecular Pharmacology, Department of Pharmacology, Chongqing Medical University, Chongqing 400016, China.
| |
Collapse
|
16
|
Li M, Zhang S, Ma Y, Yang Y, An R. Role of hsa‑miR‑105 during the pathogenesis of paclitaxel resistance and its clinical implication in ovarian cancer. Oncol Rep 2021; 45:84. [PMID: 33846814 PMCID: PMC8025119 DOI: 10.3892/or.2021.8035] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Accepted: 01/21/2021] [Indexed: 12/17/2022] Open
Abstract
More than 70% of patients with epithelial ovarian cancer (EOC), one of the leading cause of gynecological cancer-related deaths worldwide, are diagnosed at an advanced stage of the disease. Currently, the mainstay for treatment of advanced EOC is tumor debulking surgery followed by combined platinum- and paclitaxel (PTX)-based chemotherapy. However, most patients eventually develop chemoresistance, which remains a major obstacle to successful treatment. Herein, by using clinical specimens and experimentally induced cell models, we found that the expression levels of hsa-miR-105 were significantly decreased in PTX-resistant EOC tissues and cell lines. Follow-up functional experiments demonstrated that repression of hsa-miR-105 conferred resistance to paclitaxel in EOC cells, whereas restoration of hsa-miR-105 expression in situ via intratumoral injection of hsa-miR-105 micrON™ agomir potentiated in vivo sensitivity to PTX and thereafter significantly inhibited tumor growth in a PTX-challenged xenograft model. Mechanistically, hsa-miR-105 exerted its tumor suppressor function by directly inhibiting the zinc and ring finger 2 (ZNRF2) signaling pathway. Importantly, aberrant expression of hsa-miR-105 in both tumor and circulating samples predicted a poor post-chemotherapy prognosis in EOC patients. These findings collectively suggest that hsa-miR-105 may act as a potent tumor suppressor miRNA during the progression of EOC, likely affecting cell proliferation, invasiveness and chemosensitivity to PTX, and functioning at least in part via inhibition of ZNRF2 signaling. The stability and availability and ease in measurement of circulating hsa-miR-105 make it a valuable diagnostic/prognostic biomarker candidate for chemotherapy of EOC.
Collapse
Affiliation(s)
- Mao Li
- Department of Obstetrics and Gynecology, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Shun Zhang
- Department of Obstetrics and Gynecology, Reproductive Medicine Center, Tangdu Hospital, Air Force Military Medical University, Xi'an, Shaanxi 710038, P.R. China
| | - Yuan Ma
- Department of Obstetrics and Gynecology, Reproductive Medicine Center, Tangdu Hospital, Air Force Military Medical University, Xi'an, Shaanxi 710038, P.R. China
| | - Yang Yang
- Department of Obstetrics and Gynecology, First Affiliated Hospital of Xi'an Medical University, Xi'an, Shaanxi 710082, P.R. China
| | - Ruifang An
- Department of Obstetrics and Gynecology, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| |
Collapse
|
17
|
Sardana R, Emr SD. Membrane Protein Quality Control Mechanisms in the Endo-Lysosome System. Trends Cell Biol 2021; 31:269-283. [PMID: 33414051 DOI: 10.1016/j.tcb.2020.11.011] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Revised: 11/26/2020] [Accepted: 11/30/2020] [Indexed: 01/12/2023]
Abstract
Protein quality control (PQC) machineries play a critical role in selective identification and removal of mistargeted, misfolded, and aberrant proteins. This task is extremely complicated due to the enormous diversity of the proteome. It also requires nuanced and careful differentiation between 'normal' and 'folding intermediates' from 'abnormal' and 'misfolded' protein states. Multiple genetic and proteomic approaches have started to delineate the molecular underpinnings of how these machineries recognize their target and how their activity is regulated. In this review, we summarize our understanding of the various E3 ubiquitin ligases and associated machinery that mediate PQC in the endo-lysosome system in yeast and humans, how they are regulated, and mechanisms of target selection, with the intent of guiding future research in this area.
Collapse
Affiliation(s)
- Richa Sardana
- Weill Institute of Cell and Molecular Biology, Cornell University, Ithaca, NY, USA; Department of Molecular Biology and Genetics, Cornell University, Ithaca, NY, USA
| | - Scott D Emr
- Weill Institute of Cell and Molecular Biology, Cornell University, Ithaca, NY, USA; Department of Molecular Biology and Genetics, Cornell University, Ithaca, NY, USA.
| |
Collapse
|
18
|
Najafov A, Luu HS, Mookhtiar AK, Mifflin L, Xia HG, Amin PP, Ordureau A, Wang H, Yuan J. RIPK1 Promotes Energy Sensing by the mTORC1 Pathway. Mol Cell 2020; 81:370-385.e7. [PMID: 33271062 DOI: 10.1016/j.molcel.2020.11.008] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Revised: 08/31/2020] [Accepted: 11/04/2020] [Indexed: 02/03/2023]
Abstract
The mechanisms of cellular energy sensing and AMPK-mediated mTORC1 inhibition are not fully delineated. Here, we discover that RIPK1 promotes mTORC1 inhibition during energetic stress. RIPK1 is involved in mediating the interaction between AMPK and TSC2 and facilitate TSC2 phosphorylation at Ser1387. RIPK1 loss results in a high basal mTORC1 activity that drives defective lysosomes in cells and mice, leading to accumulation of RIPK3 and CASP8 and sensitization to cell death. RIPK1-deficient cells are unable to cope with energetic stress and are vulnerable to low glucose levels and metformin. Inhibition of mTORC1 rescues the lysosomal defects and vulnerability to energetic stress and prolongs the survival of RIPK1-deficient neonatal mice. Thus, RIPK1 plays an important role in the cellular response to low energy levels and mediates AMPK-mTORC1 signaling. These findings shed light on the regulation of mTORC1 during energetic stress and unveil a point of crosstalk between pro-survival and pro-death pathways.
Collapse
Affiliation(s)
- Ayaz Najafov
- Department of Cell Biology, Harvard Medical School, Boston, MA 02115, USA; Ludwig Center, Harvard Medical School, Boston, MA 02115, USA.
| | - Hoang Son Luu
- Department of Cell Biology, Harvard Medical School, Boston, MA 02115, USA
| | - Adnan K Mookhtiar
- Department of Cell Biology, Harvard Medical School, Boston, MA 02115, USA
| | - Lauren Mifflin
- Department of Cell Biology, Harvard Medical School, Boston, MA 02115, USA
| | - Hong-Guang Xia
- Department of Cell Biology, Harvard Medical School, Boston, MA 02115, USA
| | - Palak P Amin
- Department of Cell Biology, Harvard Medical School, Boston, MA 02115, USA
| | - Alban Ordureau
- Department of Cell Biology, Harvard Medical School, Boston, MA 02115, USA
| | - Huibing Wang
- Department of Cell Biology, Harvard Medical School, Boston, MA 02115, USA
| | - Junying Yuan
- Department of Cell Biology, Harvard Medical School, Boston, MA 02115, USA; Ludwig Center, Harvard Medical School, Boston, MA 02115, USA.
| |
Collapse
|
19
|
Crook OM, Geladaki A, Nightingale DJH, Vennard OL, Lilley KS, Gatto L, Kirk PDW. A semi-supervised Bayesian approach for simultaneous protein sub-cellular localisation assignment and novelty detection. PLoS Comput Biol 2020; 16:e1008288. [PMID: 33166281 PMCID: PMC7707549 DOI: 10.1371/journal.pcbi.1008288] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 12/01/2020] [Accepted: 08/25/2020] [Indexed: 01/13/2023] Open
Abstract
The cell is compartmentalised into complex micro-environments allowing an array of specialised biological processes to be carried out in synchrony. Determining a protein's sub-cellular localisation to one or more of these compartments can therefore be a first step in determining its function. High-throughput and high-accuracy mass spectrometry-based sub-cellular proteomic methods can now shed light on the localisation of thousands of proteins at once. Machine learning algorithms are then typically employed to make protein-organelle assignments. However, these algorithms are limited by insufficient and incomplete annotation. We propose a semi-supervised Bayesian approach to novelty detection, allowing the discovery of additional, previously unannotated sub-cellular niches. Inference in our model is performed in a Bayesian framework, allowing us to quantify uncertainty in the allocation of proteins to new sub-cellular niches, as well as in the number of newly discovered compartments. We apply our approach across 10 mass spectrometry based spatial proteomic datasets, representing a diverse range of experimental protocols. Application of our approach to hyperLOPIT datasets validates its utility by recovering enrichment with chromatin-associated proteins without annotation and uncovers sub-nuclear compartmentalisation which was not identified in the original analysis. Moreover, using sub-cellular proteomics data from Saccharomyces cerevisiae, we uncover a novel group of proteins trafficking from the ER to the early Golgi apparatus. Overall, we demonstrate the potential for novelty detection to yield biologically relevant niches that are missed by current approaches.
Collapse
Affiliation(s)
- Oliver M. Crook
- Cambridge Centre for Proteomics, Department of Biochemistry, University of Cambridge, Cambridge, UK
- MRC Biostatistics Unit, School of Clinical Medicine, University of Cambridge, Cambridge, UK
- Milner Therapeutics Institute, Jeffrey Cheah Biomedical Centre, University of Cambridge, Puddicombe Way, Cambridge CB2 0AW, Cambridge, UK
| | - Aikaterini Geladaki
- Cambridge Centre for Proteomics, Department of Biochemistry, University of Cambridge, Cambridge, UK
- Department of Genetics, Universtiy of Cambridge, Cambridge, UK
| | - Daniel J. H. Nightingale
- Cambridge Centre for Proteomics, Department of Biochemistry, University of Cambridge, Cambridge, UK
| | - Owen L. Vennard
- Cambridge Centre for Proteomics, Department of Biochemistry, University of Cambridge, Cambridge, UK
- Milner Therapeutics Institute, Jeffrey Cheah Biomedical Centre, University of Cambridge, Puddicombe Way, Cambridge CB2 0AW, Cambridge, UK
| | - Kathryn S. Lilley
- Cambridge Centre for Proteomics, Department of Biochemistry, University of Cambridge, Cambridge, UK
- Milner Therapeutics Institute, Jeffrey Cheah Biomedical Centre, University of Cambridge, Puddicombe Way, Cambridge CB2 0AW, Cambridge, UK
| | - Laurent Gatto
- de Duve Institute, UCLouvain, Avenue Hippocrate 75, 1200 Brussels, Belgium
| | - Paul D. W. Kirk
- MRC Biostatistics Unit, School of Clinical Medicine, University of Cambridge, Cambridge, UK
- Cambridge Institute of Therapeutic Immunology & Infectious Disease (CITIID), Jeffrey Cheah Biomedical Centre, Cambridge Biomedical Campus, University of Cambridge, UK
| |
Collapse
|
20
|
Hait AS, Thomsen MM, Larsen SM, Helleberg M, Mardahl M, Barfod TS, Christiansen M, Brandt C, Mogensen TH. Whole-Exome Sequencing of Patients With Recurrent HSV-2 Lymphocytic Mollaret Meningitis. J Infect Dis 2020; 223:1776-1786. [PMID: 32946550 DOI: 10.1093/infdis/jiaa589] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Accepted: 09/17/2020] [Indexed: 12/19/2022] Open
Abstract
Recurrent lymphocytic meningitis, also referred to as Mollaret meningitis, is a rare neurological disease characterized mainly by reactivation of herpes simplex virus 2 (HSV-2) from sensory ganglia. However, the underlying host immune determinants and viral factors rendering some individuals unable to maintain HSV-2 latency are largely unknown. We collected a cohort of 15 patients diagnosed with Mollaret meningitis. By whole-exome sequencing we identified rare host genetic variants predicted to be deleterious in molecules involved in (1) ubiquitin-proteasome pathways, (2) the autophagy machinery, and (3) cell proliferation/apoptosis. Moreover, infection of patient cells with HSV-2 or stimulation by virus-derived double-stranded DNA ligands revealed reduced antiviral interferon responses in most patients. These findings may contribute to a better understanding of disease pathogenesis and protective immunity to HSV in the central nervous system, and may ultimately be of importance for identification of targets for development of improved prophylaxis and treatment of this disease.
Collapse
Affiliation(s)
- Alon Schneider Hait
- Department of Infectious Diseases, Aarhus University Hospital, Aarhus, Denmark.,Department of Biomedicine, Aarhus University, Aarhus, Denmark
| | - Michelle M Thomsen
- Department of Infectious Diseases, Aarhus University Hospital, Aarhus, Denmark.,Department of Biomedicine, Aarhus University, Aarhus, Denmark
| | - Simon M Larsen
- Department of Infectious Diseases, Aarhus University Hospital, Aarhus, Denmark
| | - Marie Helleberg
- Department of Infectious Diseases, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
| | - Maibritt Mardahl
- Department of Infectious Diseases, Aarhus University Hospital, Aarhus, Denmark
| | - Toke S Barfod
- Department of Internal medicine, Section for Infectious Diseases, Zealand University Hospital, Roskilde, Denmark
| | - Mette Christiansen
- Department of Molecular Medicine, Aarhus University Hospital, Aarhus, Denmark
| | - Christian Brandt
- Department of Internal medicine, Section for Infectious Diseases, Zealand University Hospital, Roskilde, Denmark.,Department of Pulmonology and Infectious Diseases, Nordsjællands Hospital, Hillerød, Denmark
| | - Trine H Mogensen
- Department of Infectious Diseases, Aarhus University Hospital, Aarhus, Denmark.,Department of Biomedicine, Aarhus University, Aarhus, Denmark.,Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| |
Collapse
|
21
|
Hu L, Gao Y, Shi Z, Liu Y, Zhao J, Xiao Z, Lou J, Xu Q, Tong X. DNA methylation-based prognostic biomarkers of acute myeloid leukemia patients. ANNALS OF TRANSLATIONAL MEDICINE 2019; 7:737. [PMID: 32042753 DOI: 10.21037/atm.2019.11.122] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Background Acute myeloid leukemia (AML) is a heterogeneous clonal disease that prevents normal myeloid differentiation with its common features. Its incidence increases with age and has a poor prognosis. Studies have shown that DNA methylation and abnormal gene expression are closely related to AML. Methods The methylation array data and mRNA array data are from the Gene Expression Omnibus (GEO) database. Through the GEO data, we identified differential genes from tumors and normal samples. Then we performed Kyoto Encyclopedia of Genes and Genomes (KEGG) and Gene Ontology (GO) analyses on these differential genes. Protein-protein interaction (PPI) network construction and module analysis were performed to screen the highest-scoring modules. Next, we used SurvExpress software to analyze the genes in the highest-scoring module and selected potential prognostic genes by univariate and multivariate Cox analysis. Finally, the three genes screened by SurvExpress software were analyzed using the methylation analysis site MethSurv to explore AML associated methylation biomarkers. Results We found three genes that can be used as independent prognostic factors for AML. These three genes are the low expression/methylation genes ATP11A and ITGAM, and the high expression/low methylation gene ZNRF2. Conclusions In this study, we performed a comprehensive analysis of DNA methylation and gene expression to identify key epigenetic genes in AML.
Collapse
Affiliation(s)
- Linjun Hu
- The Medical College of Qingdao University, Qingdao 266071, China
| | - Yuling Gao
- Department of Genetic Laboratory, Shaoxing Women and Children Hospital, Shaoxing 312030, China
| | - Zhan Shi
- The Second Clinical Medical College of Zhejiang Chinese Medical University, Hangzhou 310014, China
| | - Yang Liu
- The Medical College of Qingdao University, Qingdao 266071, China
| | - Junjun Zhao
- Graduate Department, Bengbu Medical College, Bengbu 233030, China
| | - Zunqiang Xiao
- The Second Clinical Medical College of Zhejiang Chinese Medical University, Hangzhou 310014, China
| | - Jiayin Lou
- Department of Clinical Laboratory, Da jiang dong Hospital, Hangzhou, 310014, China
| | - Qiuran Xu
- The Key Laboratory of Tumor Molecular Diagnosis and Individualized Medicine of Zhejiang Province, Zhejiang Provincial People's Hospital (People's Hospital of Hangzhou Medical College), Hangzhou 310014, China
| | - Xiangmin Tong
- The Key Laboratory of Tumor Molecular Diagnosis and Individualized Medicine of Zhejiang Province, Zhejiang Provincial People's Hospital (People's Hospital of Hangzhou Medical College), Hangzhou 310014, China
| |
Collapse
|
22
|
La Ferla M, Lessi F, Aretini P, Pellegrini D, Franceschi S, Tantillo E, Menicagli M, Marchetti I, Scopelliti C, Civita P, De Angelis C, Diodati L, Bertolini I, Roncella M, McDonnell LA, Hochman J, Del Re M, Scatena C, Naccarato AG, Fontana A, Mazzanti CM. ANKRD44 Gene Silencing: A Putative Role in Trastuzumab Resistance in Her2-Like Breast Cancer. Front Oncol 2019; 9:547. [PMID: 31297336 PMCID: PMC6607964 DOI: 10.3389/fonc.2019.00547] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2019] [Accepted: 06/04/2019] [Indexed: 12/11/2022] Open
Abstract
Trastuzumab is an effective therapeutic treatment for Her2-like breast cancer; despite this most of these tumors develop resistance to therapy due to specific gene mutations or alterations in gene expression. Understanding the mechanisms of resistance to Trastuzumab could be a useful tool in order to identify combinations of drugs that elude resistance and allow a better response for the treated patients. Twelve primary biopsies of Her2+/hormone receptor negative (ER-/PgR-) breast cancer patients were selected based on the specific response to neoadjuvant therapy with Trastuzumab and their whole exome was sequenced leading to the identification of 18 informative gene mutations that discriminate patients selectively based on response to treatment. Among these genes, we focused on the study of the ANKRD44 gene to understand its role in the mechanism of resistance to Trastuzumab. The ANKRD44 gene was silenced in Her2-like breast cancer cell line (BT474), obtaining a partially Trastuzumab-resistant breast cancer cell line that constitutively activates the NF-kb protein via the TAK1/AKT pathway. Following this activation an increase in the level of glycolysis in resistant cells is promoted, also confirmed by the up-regulation of the LDHB protein and by an increased TROP2 protein expression, found generally associated with aggressive tumors. These results allow us to consider the ANKRD44 gene as a potential gene involved in Trastuzumab resistance.
Collapse
Affiliation(s)
- Marco La Ferla
- Fondazione Pisana per la Scienza - Genomic Section, Pisa, Italy
| | - Francesca Lessi
- Fondazione Pisana per la Scienza - Genomic Section, Pisa, Italy
| | - Paolo Aretini
- Fondazione Pisana per la Scienza - Genomic Section, Pisa, Italy
| | - Davide Pellegrini
- Fondazione Pisana per la Scienza - Proteomic Section, Pisa, Italy.,NEST, Scuola Normale Superiore, Pisa, Italy
| | - Sara Franceschi
- Fondazione Pisana per la Scienza - Genomic Section, Pisa, Italy
| | - Elena Tantillo
- Fondazione Pisana per la Scienza - Genomic Section, Pisa, Italy.,Scuola Normale Superiore, Pisa, Italy
| | | | - Ivo Marchetti
- Cytopathology Section, Azienda Ospedaliero-Universitaria Pisana (AOUP), Pisa, Italy
| | | | - Prospero Civita
- Fondazione Pisana per la Scienza - Genomic Section, Pisa, Italy
| | - Claudia De Angelis
- Medical Oncology Unit, Azienda Ospedaliero-Universitaria Pisana (AOUP), Pisa, Italy
| | - Lucrezia Diodati
- Medical Oncology Unit, Azienda Ospedaliero-Universitaria Pisana (AOUP), Pisa, Italy
| | - Ilaria Bertolini
- Medical Oncology Unit, Azienda Ospedaliero-Universitaria Pisana (AOUP), Pisa, Italy
| | - Manuela Roncella
- Breast Cancer Center, Azienda Ospedaliero-Universitaria Pisana (AOUP), Pisa, Italy
| | - Liam A McDonnell
- Fondazione Pisana per la Scienza - Proteomic Section, Pisa, Italy
| | - Jacob Hochman
- Department of Cell and Developmental Biology, the Hebrew University of Jerusalem, Jerusalem, Israel
| | - Marzia Del Re
- Unit of Clinical Pharmacology and Pharmacogenetics, Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Cristian Scatena
- Department of Translational Research and New Technologies in Medicine and Surgery, University Hospital of Pisa, Pisa, Italy
| | - Antonio G Naccarato
- Department of Translational Research and New Technologies in Medicine and Surgery, University Hospital of Pisa, Pisa, Italy
| | - Andrea Fontana
- Medical Oncology Unit, Azienda Ospedaliero-Universitaria Pisana (AOUP), Pisa, Italy
| | | |
Collapse
|
23
|
Yang M, Zhai Z, Zhang Y, Wang Y. Clinical significance and oncogene function of long noncoding RNA HAGLROS overexpression in ovarian cancer. Arch Gynecol Obstet 2019; 300:703-710. [PMID: 31197441 DOI: 10.1007/s00404-019-05218-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Accepted: 06/07/2019] [Indexed: 01/07/2023]
Abstract
PURPOSE To explore the clinical significance and mechanism of long noncoding RNA (lncRNA) HAGLROS in ovarian cancer. METHODS The expression of HAGLROS in ovarian cancer was verified by online databases and quantitative reverse transcription polymerase chain reaction (qRT-PCR), and its relationship with clinicopathological parameters was analysed. Pearson correlation analysis was used to study the correlation between HAGLROS and miR-100 in ovarian cancer. Meta-analysis was used to explore the expression of miR-100 in ovarian cancer. In addition, we used bioinformatics to explore the target genes of miR-100 and perform functional analysis. RESULTS HAGLROS was significantly upregulated in ovarian cancer (P < 0.001) and was closely related to disease stage (P = 0.033), tumour size (P = 0.032) and poor prognosis (P = 0.019). HAGLROS had a certain diagnostic value in ovarian cancer (area under the curve = 0.751). MiR-100 was negatively correlated with HAGLROS (r = 0.167, P = 0.001) and significantly downregulated in ovarian cancer. Bioinformatics analysis predicted a total of 31 potential target genes that interact with miR-100. These target genes were mainly involved in the regulation of cellular catabolic process, proteoglycan biosynthetic process and positive regulation of proteasomal ubiquitin-dependent protein catabolic process. Among them, mTOR and ZNRF2 are hub genes. CONCLUSION HAGLROS is a potential biomarker for early diagnosis and prognosis evaluation of ovarian cancer. It can be used as a molecular sponge of miR-100 to regulate the expression of mTOR and ZNRF2 and affect the signal transduction of the mTOR pathway. HAGLROS is expected to be a new target for the treatment of ovarian cancer.
Collapse
Affiliation(s)
- Meiqin Yang
- Department of Gynecology and Obstetrics, People's Hospital of Zhengzhou University, Henan Provincial People's Hospital, No. 7 Weiwu Road, Jinshui District, Zhengzhou, 450000, Henan, China
| | - Zhensheng Zhai
- Department of Hepato-Biliary-Pancreatic Surgery, People's Hospital of Zhengzhou University, Henan Provincial People's Hospital, Zhengzhou, 450000, Henan, China
| | - Yunfeng Zhang
- Department of Gynecology and Obstetrics, People's Hospital of Zhengzhou University, Henan Provincial People's Hospital, No. 7 Weiwu Road, Jinshui District, Zhengzhou, 450000, Henan, China
| | - Yue Wang
- Department of Gynecology and Obstetrics, People's Hospital of Zhengzhou University, Henan Provincial People's Hospital, No. 7 Weiwu Road, Jinshui District, Zhengzhou, 450000, Henan, China.
| |
Collapse
|
24
|
Ohama T. The multiple functions of protein phosphatase 6. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2019; 1866:74-82. [DOI: 10.1016/j.bbamcr.2018.07.015] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2018] [Revised: 06/21/2018] [Accepted: 07/18/2018] [Indexed: 12/26/2022]
|
25
|
Xiao Q, Yang Y, An Q, Qi Y. MicroRNA-100 suppresses human osteosarcoma cell proliferation and chemo-resistance via ZNRF2. Oncotarget 2018; 8:34678-34686. [PMID: 28416774 PMCID: PMC5471002 DOI: 10.18632/oncotarget.16149] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2016] [Accepted: 02/15/2017] [Indexed: 02/06/2023] Open
Abstract
Osteosarcoma (OS) is a prevalent cancer worldwide. MicroRNAs (miRNAs) play critical roles in the growth, invasion and carcinogenesis of OS, whereas the underlying mechanisms remain ill-defined. Here, we addressed these questions. We detected significantly higher levels of ZNRF2, a ubiquitin ligase of the RING superfamily, and significantly lower levels of miR-100 in the OS specimens, compared to the paired normal bone tissues. The levels of ZNRF2 and miR-100 inversely correlated in the OS specimens. In addition, low miR-100 levels are associated with poor prognosis of the OS patients. Either ZNRF2 overexpression or miR-100 depletion increased in vitro OS cell growth and improved cell survival at the presence of Doxorubicin. Mechanistically, with the help of bioinformatics analysis and luciferase-reporter assay, we found that miR-100 might bind to the 3’-UTR of ZNRF2 mRNA to prevent its protein translation. Thus, our data suggest that re-expression of miR-100 may inhibit OS cell growth and decrease OS cell chemo-resistance.
Collapse
Affiliation(s)
- Qiang Xiao
- Department of Hand Surgery, The First Affiliated Hospital of Liaoning Medical University, Jinzhou 121001, China
| | - Yu Yang
- Department of Hand Surgery, The First Affiliated Hospital of Liaoning Medical University, Jinzhou 121001, China
| | - Qing An
- Department of Hand Surgery, The First Affiliated Hospital of Liaoning Medical University, Jinzhou 121001, China
| | - Yong Qi
- Department of Hand Surgery, The First Affiliated Hospital of Liaoning Medical University, Jinzhou 121001, China
| |
Collapse
|