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Zhou W, Yang Y, Wang W, Yang C, Cao Z, Lin X, Zhang H, Xiao Y, Zhang X. Pseudogene OCT4-pg5 upregulates OCT4B expression to promote bladder cancer progression by competing with miR-145-5p. Cell Cycle 2024; 23:645-661. [PMID: 38842275 PMCID: PMC11229759 DOI: 10.1080/15384101.2024.2353554] [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: 03/25/2023] [Accepted: 05/05/2024] [Indexed: 06/07/2024] Open
Abstract
Bladder cancer (BC) is one of the most common malignant neoplasms worldwide. Competing endogenous RNA (ceRNA) networks may identify potential biomarkers associated with the progression and prognosis of BC. The OCT4-pg5/miR-145-5p/OCT4B ceRNA network was found to be related to the progression and prognosis of BC. OCT4-pg5 expression was significantly higher in BC cell lines than in normal bladder cells, with OCT4-pg5 expression correlating with OCT4B expression and advanced tumor grade. Overexpression of OCT4-pg5 and OCT4B promoted the proliferation and invasion of BC cells, whereas miR-145-5p suppressed these activities. The 3' untranslated region (3'UTR) of OCT4-pg5 competed for miR-145-5p, thereby increasing OCT4B expression. In addition, OCT4-pg5 promoted epithelial-mesenchymal transition (EMT) by activating the Wnt/β-catenin pathway and upregulating the expression of matrix metalloproteinases (MMPs) 2 and 9 as well as the transcription factors zinc finger E-box binding homeobox (ZEB) 1 and 2. Elevated expression of OCT4-pg5 and OCT4B reduced the sensitivity of BC cells to cisplatin by reducing apoptosis and increasing the proportion of cells in G1. The OCT4-pg5/miR-145-5p/OCT4B axis promotes the progression of BC by inducing EMT via the Wnt/β-catenin pathway and enhances cisplatin resistance. This axis may represent a therapeutic target in patients with BC.
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Affiliation(s)
- Wuer Zhou
- The Department of Urology, General Hospital of Southern Theater Command, PLA, Guangzhou, China
| | - Yue Yang
- The Department of Urology, General Hospital of Southern Theater Command, PLA, Guangzhou, China
- The First School of Clinical Medicine, Southern Medical University, Guangzhou, China
| | - Wei Wang
- The Department of Urology, General Hospital of Southern Theater Command, PLA, Guangzhou, China
- The First School of Clinical Medicine, Southern Medical University, Guangzhou, China
| | - Chenglin Yang
- The Department of Urology, General Hospital of Southern Theater Command, PLA, Guangzhou, China
| | - Zhi Cao
- The Department of Urology, General Hospital of Southern Theater Command, PLA, Guangzhou, China
| | - Xiaoyu Lin
- The Department of Urology, General Hospital of Southern Theater Command, PLA, Guangzhou, China
| | - Huifen Zhang
- The Department of Urology, General Hospital of Southern Theater Command, PLA, Guangzhou, China
| | - Yuansong Xiao
- The Department of Urology, General Hospital of Southern Theater Command, PLA, Guangzhou, China
| | - Xiaoming Zhang
- The Department of Urology, General Hospital of Southern Theater Command, PLA, Guangzhou, China
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Abd GM, Laird MC, Ku JC, Li Y. Hypoxia-induced cancer cell reprogramming: a review on how cancer stem cells arise. Front Oncol 2023; 13:1227884. [PMID: 37614497 PMCID: PMC10442830 DOI: 10.3389/fonc.2023.1227884] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Accepted: 07/21/2023] [Indexed: 08/25/2023] Open
Abstract
Cancer stem cells are a subset of cells within the tumor that possess the ability to self-renew as well as differentiate into different cancer cell lineages. The exact mechanisms by which cancer stem cells arise is still not completely understood. However, current research suggests that cancer stem cells may originate from normal stem cells that have undergone genetic mutations or epigenetic changes. A more recent discovery is the dedifferentiation of cancer cells to stem-like cells. These stem-like cells have been found to express and even upregulate induced pluripotent stem cell markers known as Yamanaka factors. Here we discuss developments in how cancer stem cells arise and consider how environmental factors, such as hypoxia, plays a key role in promoting the progression of cancer stem cells and metastasis. Understanding the mechanisms that give rise to these cells could have important implications for the development of new strategies in cancer treatments and therapies.
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Affiliation(s)
- Genevieve M. Abd
- Department of Orthopedic Surgery, Biomedical. Engineering, Western Michigan University Homer Stryker MD School of Medicine, Kalamazoo, MI, United States
| | - Madison C. Laird
- Medical Students, Western Michigan University Homer Stryker MD School of Medicine, Kalamazoo, MI, United States
| | - Jennifer C. Ku
- Medical Students, Western Michigan University Homer Stryker MD School of Medicine, Kalamazoo, MI, United States
| | - Yong Li
- Department of Orthopedic Surgery, Biomedical. Engineering, Western Michigan University Homer Stryker MD School of Medicine, Kalamazoo, MI, United States
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El Marsafy S, Larghero J. Cancer Cell De-Differentiation: Plasticity-Driven Stratagem For Tumor Metastasis and Recurrence. Curr Stem Cell Res Ther 2023; 18:54-61. [PMID: 35676837 DOI: 10.2174/1574888x17666220608101852] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Revised: 04/07/2022] [Accepted: 04/11/2022] [Indexed: 11/22/2022]
Abstract
Tumor recurrence is a colossal challenge in clinical oncology. This multifactorial problem is attributed to the emergence of additional genetic mutations and the presence of dormant cancer cells. However, the plasticity of non-stem cancer cells and the acquisition of cancer stem cell (CSC) functionality is another contributing factor to tumor recurrence. Herein, I focus attention on the mechanisms that fuel cancer cell de-differentiation and the interplay between intra-cellular regulators and tumor microenvironment (TME) landscape that promotes cancer cell stemness. Our understanding of the mechanisms underlying tumor cell de-differentiation is crucial for developing innovative therapeutic strategies that prevent cancer from ever recurring.
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Lee LJ, Papadopoli D, Jewer M, Del Rincon S, Topisirovic I, Lawrence MG, Postovit LM. Cancer Plasticity: The Role of mRNA Translation. Trends Cancer 2020; 7:134-145. [PMID: 33067172 PMCID: PMC8023421 DOI: 10.1016/j.trecan.2020.09.005] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Revised: 09/08/2020] [Accepted: 09/15/2020] [Indexed: 12/12/2022]
Abstract
Tumor progression is associated with dedifferentiated histopathologies concomitant with cancer cell survival within a changing, and often hostile, tumor microenvironment. These processes are enabled by cellular plasticity, whereby intracellular cues and extracellular signals are integrated to enable rapid shifts in cancer cell phenotypes. Cancer cell plasticity, at least in part, fuels tumor heterogeneity and facilitates metastasis and drug resistance. Protein synthesis is frequently dysregulated in cancer, and emerging data suggest that translational reprograming collaborates with epigenetic and metabolic programs to effectuate phenotypic plasticity of neoplasia. Herein, we discuss the potential role of mRNA translation in cancer cell plasticity, highlight emerging histopathological correlates, and deliberate on how this is related to efforts to improve understanding of the complex tumor ecology.
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Affiliation(s)
- Laura J Lee
- Department of Oncology, University of Alberta, Edmonton, AB, Canada
| | - David Papadopoli
- Lady Davis Institute, Gerald Bronfman Department of Oncology and Departments of Biochemistry and Experimental Medicine, McGill University, Montreal, QC, Canada
| | - Michael Jewer
- Department of Oncology, University of Alberta, Edmonton, AB, Canada
| | - Sonia Del Rincon
- Lady Davis Institute, Gerald Bronfman Department of Oncology and Departments of Biochemistry and Experimental Medicine, McGill University, Montreal, QC, Canada
| | - Ivan Topisirovic
- Lady Davis Institute, Gerald Bronfman Department of Oncology and Departments of Biochemistry and Experimental Medicine, McGill University, Montreal, QC, Canada.
| | - Mitchell G Lawrence
- Biomedicine Discovery Institute Cancer Program, Prostate Cancer Research Group, Department of Anatomy and Developmental Biology, Monash University, Clayton, VIC 3800, Australia; Peter MacCallum Cancer Centre, Melbourne, VIC 3000, Australia; Sir Peter MacCallum Department of Oncology, The University of Melbourne, Parkville, VIC 3010, Australia.
| | - Lynne-Marie Postovit
- Department of Oncology, University of Alberta, Edmonton, AB, Canada; Department of Biomedical and Molecular Sciences, Queen's University, Kingston, ON, Canada.
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Liu HL, Tang HT, Yang HL, Deng TT, Xu YP, Xu SQ, Peng L, Wang Z, Fang Q, Kuang XY, Li QS. Oct4 Regulates the Transition of Cancer Stem-Like Cells to Tumor Endothelial-Like Cells in Human Liver Cancer. Front Cell Dev Biol 2020; 8:563316. [PMID: 33102474 PMCID: PMC7554317 DOI: 10.3389/fcell.2020.563316] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Accepted: 09/10/2020] [Indexed: 12/20/2022] Open
Abstract
Octamer-binding transcription factor 4 (Oct4) has been recently implicated as a proangiogenic regulator in several induced pluripotent stem cells (iPSCs), however, its role in cancer stem-like cells (CSCs) remain unclear. We report here that Oct4 participates in tumor vasculogenesis in liver CSCs (LCSCs). We identify that LCSCs possess the potential of endothelial trans-differentiation under endothelial induction, present endothelial specific markers and their functions in vitro, and participate in neovasculogenesis in vivo. The knockdown of the Oct4A by short hairpin RNA (shRNA) in LCSCs represses endothelial trans-differentiation potential, but induces endothelial lineage-restricted differentiation, the latter is positively regulated by Oct4B1. Furthermore, Oct4 regulates vasculogenesis in LCSCs may be via the AKT-NF-κB-p65 signaling pathway. This work reveals Oct4, which is a crucial regulator, plays a critical role in tumor endothelial-like cells transition of LCSCs through Oct4A and Oct4B1 by different ways. The simultaneous inhibition of both the isoforms of Oct4 is hence expected to help regress neovascularization derived from CSCs. Our findings may provide insights to the possible new mechanisms of tumor vasculogenesis for primary liver cancer.
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Affiliation(s)
- Hong-Lin Liu
- Institute of Clinical Medical Sciences, China-Japan Friendship Hospital, Beijing, China
| | - Hong-Ting Tang
- Institute of Clinical Medical Sciences, China-Japan Friendship Hospital, Beijing, China
| | - Han-Lin Yang
- Institute of Clinical Medical Sciences, China-Japan Friendship Hospital, Beijing, China
| | - Ting-Ting Deng
- Institute of Clinical Medical Sciences, China-Japan Friendship Hospital, Beijing, China
| | - Ya-Ping Xu
- Institute of Clinical Medical Sciences, China-Japan Friendship Hospital, Beijing, China
| | - Shi-Qing Xu
- Institute of Clinical Medical Sciences, China-Japan Friendship Hospital, Beijing, China
| | - Liang Peng
- Institute of Clinical Medical Sciences, China-Japan Friendship Hospital, Beijing, China
| | - Zai Wang
- Institute of Clinical Medical Sciences, China-Japan Friendship Hospital, Beijing, China
| | - Qing Fang
- Institute of Clinical Medical Sciences, China-Japan Friendship Hospital, Beijing, China
| | - Xiao-Yan Kuang
- Institute of Clinical Pathology, Zunyi Medical College, Zunyi, China
| | - Qin-Shan Li
- Department of Obstetrics and Gynecology, Prenatal Diagnosis Center, Affiliated Hospital of Guizhou Medical University, Guiyang, China.,Department of Clinical Biochemistry, School of Clinical Laboratory Science, Guizhou Medical University, Guiyang, China
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Mashayekhi P, Noruzinia M, Khodaverdi S. Deregulation of Stemness-Related Genes in Endometriotic Mesenchymal Stem Cells: Further Evidence for Self-Renewal/Differentiation Imbalance. IRANIAN BIOMEDICAL JOURNAL 2020; 24:333-9. [PMID: 32429647 PMCID: PMC7392139 DOI: 10.29252/ibj.24.5.328] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Background: Any irregularities in self-renewal/differentiation balance in endometriotic MSCs can change their fate and function, resulting in endometriosis development. This study aimed to evaluate the expression of OCT4 transcripts (OCT4A, OCT4B, and OCT4B1), SOX2, and NANOG in endometriotic MSCs to show their aberrant expression and to support self-renewal/differentiation imbalance in these cells. Methods: MSCs were isolated from three endometriotic and three normal endometrium samples and characterized and analyzed for the expressions of OCT4A, OCT4B, OCT4B1, SOX2, and NANOG using the qRT-PCR. Results: The expressions of OCT4 transcripts and NANOG increased significantly in endometriotic MSCs, whereas SOX2 expression did not show any significant difference. Conclusion: Our findings provide further evidence for confirming the self-renewal/ differentiation imbalance in endometriotic MSCs, as the main underlying cause of endometriosis development. This study also paves the way for further research on endometriosis treatment by focusing on endometriotic stem cells.
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Affiliation(s)
- Parisa Mashayekhi
- Department of Medical Genetics, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Mehrdad Noruzinia
- Department of Medical Genetics, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Sepideh Khodaverdi
- Endometriosis Research Center, Iran University of Medical Science, Tehran, Iran
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Abstract
PURPOSE OF REVIEW We discuss recent discoveries in hypoxic cellular pathophysiology and explore the interplay between hypoxic malignant cells and other stromal elements. This review will provide an update on the effects of hypoxia on cancer outcomes and therapeutic resistance. RECENT FINDINGS Hypoxia has been discovered to be a key driver for tumor progression, both because of impacts on tumor cells and separately on the wider tumor microenvironment. The latter effects occur via epithelial mesenchymal transition, autophagy and metabolic switching. Through epithelial mesenchymal transition, hypoxia both drives metastasis and renders key target tissues receptive to metastasis. Autophagy is a double-edged sword which requires greater understanding to ascertain when it is a threat. Metabolic switching allows tumor cells to access hypoxic survival mechanisms even under normoxic conditions.Every element of the malignant stroma contributes to hypoxia-driven progression. Exosomal transfer of molecules from hypoxic tumor cells to target stromal cell types and the importance of microRNAs in intercellular communication have emerged as key themes.Antiangiogenic resistance can be caused by hypoxia-driven vasculogenic mimicry. Beyond this, hypoxia contributes to resistance to virtually all oncological treatment modalities. SUMMARY Recent advances have moved us closer to being able to exploit hypoxic mechanisms to overcome hypoxia-driven progression and therapy failure.
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Affiliation(s)
- Andrew Redfern
- School of Medicine, The University of Western Australia, Perth
| | - Veenoo Agarwal
- Department of Medical Oncology, Fiona Stanley Hospital, Murdoch, Western Australia
| | - Erik W Thompson
- Institute of Health and Biomedical Innovation and School of Biomedical Sciences, Queensland University of Technology (QUT), Brisbane
- Translational Research Institute, Woolloongabba, Australia
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Chen Y, Wu Z, Zhu X, Zhang M, Zang X, Li X, Xu Y. OCT4B-190 protects against ischemic stroke by modulating GSK-3β/HDAC6. Exp Neurol 2019; 316:52-62. [DOI: 10.1016/j.expneurol.2019.04.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2019] [Revised: 03/25/2019] [Accepted: 04/10/2019] [Indexed: 01/09/2023]
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Wang HF, Wang SS, Zheng M, Dai LL, Wang K, Gao XL, Cao MX, Yu XH, Pang X, Zhang M, Wu JB, Wu JS, Yang X, Tang YJ, Chen Y, Tang YL, Liang XH. Hypoxia promotes vasculogenic mimicry formation by vascular endothelial growth factor A mediating epithelial-mesenchymal transition in salivary adenoid cystic carcinoma. Cell Prolif 2019; 52:e12600. [PMID: 30945361 PMCID: PMC6536414 DOI: 10.1111/cpr.12600] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2018] [Revised: 01/27/2019] [Accepted: 02/12/2019] [Indexed: 02/05/2023] Open
Abstract
Objectives To investigate the role of hypoxia in vasculogenic mimicry (VM) of salivary adenoid cystic carcinoma (SACC) and the underlying mechanism involved. Materials and methods Firstly, wound healing, transwell invasion, immunofluorescence and tube formation assays were performed to measure the effect of hypoxia on migration, invasion, EMT and VM of SACC cells, respectively. Then, immunofluorescence and RT‐PCR were used to detect the effect of hypoxia on VE‐cadherin and VEGFA expression. And pro‐vasculogenic mimicry effect of VEGFA was investigated by confocal laser scanning microscopy and Western blot. Moreover, the levels of E‐cadherin, N‐cadherin, Vimentin, CD44 and ALDH1 were determined by Western blot and immunofluorescence in SACC cells treated by exogenous VEGFA or bevacizumab. Finally, CD31/ PAS staining was performed to observe VM and immunohistochemistry was used to determine the levels of VEGFA and HIF‐1α in 95 SACC patients. The relationships between VM and clinicopathological variables, VEGFA or HIF‐1α level were analysed. Results Hypoxia promoted cell migration, invasion, EMT and VM formation, and enhanced VE‐cadherin and VEGFA expression in SACC cells. Further, exogenous VEGFA markedly increased the levels of N‐cadherin, Vimentin, CD44 and ALDH1, and inhibited the expression of E‐cadherin, while the VEGFA inhibitor reversed these changes. In addition, VM channels existed in 25 of 95 SACC samples, and there was a strong positive correlation between VM and clinic stage, distant metastases, VEGFA and HIF‐1α expression. Conclusions VEGFA played an important role in hypoxia‐induced VM through regulating EMT and stemness, which may eventually fuel the migration and invasion of SACC.
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Affiliation(s)
- Hao-Fan Wang
- State Key Laboratory of Oral Diseases, Department of Oral and Maxillofacial Surgery, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology (Sichuan University), Chengdu Sichuan, China
| | - Sha-Sha Wang
- State Key Laboratory of Oral Diseases, Department of Oral and Maxillofacial Surgery, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology (Sichuan University), Chengdu Sichuan, China
| | - Min Zheng
- Department of Stomatolog, Zhoushan Hospital, Wenzhou Medical University, Zhoushan, China
| | - Lu-Ling Dai
- State Key Laboratory of Oral Diseases, Department of Oral and Maxillofacial Surgery, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology (Sichuan University), Chengdu Sichuan, China
| | - Ke Wang
- State Key Laboratory of Oral Diseases, Department of Oral and Maxillofacial Surgery, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology (Sichuan University), Chengdu Sichuan, China
| | - Xiao-Lei Gao
- State Key Laboratory of Oral Diseases, Department of Oral and Maxillofacial Surgery, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology (Sichuan University), Chengdu Sichuan, China
| | - Ming-Xin Cao
- State Key Laboratory of Oral Diseases, Department of Oral and Maxillofacial Surgery, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology (Sichuan University), Chengdu Sichuan, China
| | - Xiang-Hua Yu
- State Key Laboratory of Oral Diseases, Department of Oral and Maxillofacial Surgery, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology (Sichuan University), Chengdu Sichuan, China
| | - Xin Pang
- State Key Laboratory of Oral Diseases, Department of Oral and Maxillofacial Surgery, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology (Sichuan University), Chengdu Sichuan, China
| | - Mei Zhang
- State Key Laboratory of Oral Diseases, Department of Oral and Maxillofacial Surgery, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology (Sichuan University), Chengdu Sichuan, China
| | - Jing-Biao Wu
- State Key Laboratory of Oral Diseases, Department of Oral and Maxillofacial Surgery, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology (Sichuan University), Chengdu Sichuan, China
| | - Jia-Shun Wu
- State Key Laboratory of Oral Diseases, Department of Oral and Maxillofacial Surgery, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology (Sichuan University), Chengdu Sichuan, China
| | - Xiao Yang
- State Key Laboratory of Oral Diseases, Department of Oral and Maxillofacial Surgery, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology (Sichuan University), Chengdu Sichuan, China
| | - Ya-Jie Tang
- Key Laboratory of Fermentation Engineering (Ministry of Education), Hubei Provincial Cooperative Innovation Center of Industrial Fermentation, Hubei Key Laboratory of Industrial Microbiology, Hubei University of Technology, Wuhan, China
| | - Yu Chen
- State Key Laboratory of Oral Diseases, Department of Oral Pathology, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology (Sichuan University), Chengdu Sichuan, China
| | - Ya-Ling Tang
- State Key Laboratory of Oral Diseases, Department of Oral Pathology, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology (Sichuan University), Chengdu Sichuan, China
| | - Xin-Hua Liang
- State Key Laboratory of Oral Diseases, Department of Oral and Maxillofacial Surgery, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology (Sichuan University), Chengdu Sichuan, China
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