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Bhatia V, Esmati L, Bhullar RP. Regulation of Ras p21 and RalA GTPases activity by quinine in mammary epithelial cells. Mol Cell Biochem 2024; 479:567-577. [PMID: 37131040 DOI: 10.1007/s11010-023-04725-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Accepted: 03/31/2023] [Indexed: 05/04/2023]
Abstract
Quinine, a bitter compound, can act as an agonist to activate the family of bitter taste G protein-coupled receptor family of proteins. Previous work from our laboratory has demonstrated that quinine causes activation of RalA, a Ras p21-related small G protein. Ral proteins can be activated directly or indirectly through an alternative pathway that requires Ras p21 activation resulting in the recruitment of RalGDS, a guanine nucleotide exchange factor for Ral. Using normal mammary epithelial (MCF-10A) and non-invasive mammary epithelial (MCF-7) cell lines, we investigated the effect of quinine in regulating Ras p21 and RalA activity. Results showed that in the presence of quinine, Ras p21 is activated in both MCF-10A and MCF-7 cells; however, RalA was inhibited in MCF-10A cells, and no effect was observed in the case of MCF-7 cells. MAP kinase, a downstream effector for Ras p21, was activated in both MCF-10A and MCF-7 cells. Western blot analysis confirmed the expression of RalGDS in MCF-10A cells and MCF-7 cells. The expression of RalGDS was higher in MCF-10A cells in comparison to the MCF-7 cells. Although RalGDS was detected in MCF-10A and MCF-7 cells, it did not result in RalA activation upon Ras p21 activation with quinine suggesting that the Ras p21-RalGDS-RalA pathway is not active in the MCF-10A cells. The inhibition of RalA activity in MCF-10A cells due to quinine could be as a result of a direct effect of this bitter compound on RalA. Protein modeling and ligand docking analysis demonstrated that quinine can interact with RalA through the R79 amino acid, which is located in the switch II region loop of the RalA protein. It is possible that quinine causes a conformational change that results in the inhibition of RalA activation even though RalGDS is present in the cell. More studies are needed to elucidate the mechanism(s) that regulate Ral activity in mammary epithelial cells.
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Affiliation(s)
- Vikram Bhatia
- Manitoba Chemosensory Biology Research Group and Department of Oral Biology, Dr. Gerald Niznick College of Dentistry, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB, R3E 0W2, Canada
- Children's Hospital Research Institute of Manitoba (CHRIM), Winnipeg, MB, R3E 3P4, Canada
| | - Laya Esmati
- Manitoba Chemosensory Biology Research Group and Department of Oral Biology, Dr. Gerald Niznick College of Dentistry, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB, R3E 0W2, Canada
| | - Rajinder P Bhullar
- Manitoba Chemosensory Biology Research Group and Department of Oral Biology, Dr. Gerald Niznick College of Dentistry, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB, R3E 0W2, Canada.
- Department of Biochemistry and Medical Genetics, University of Manitoba, Winnipeg, MB, R3E 0W2, Canada.
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2
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Vasudevan HN, Payne E, Delley CL, John Liu S, Mirchia K, Sale MJ, Lastella S, Nunez MS, Lucas CHG, Eaton CD, Casey-Clyde T, Magill ST, Chen WC, Braunstein SE, Perry A, Jacques L, Reddy AT, Pekmezci M, Abate AR, McCormick F, Raleigh DR. Functional interactions between neurofibromatosis tumor suppressors underlie Schwann cell tumor de-differentiation and treatment resistance. Nat Commun 2024; 15:477. [PMID: 38216572 PMCID: PMC10786885 DOI: 10.1038/s41467-024-44755-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Accepted: 01/03/2024] [Indexed: 01/14/2024] Open
Abstract
Schwann cell tumors are the most common cancers of the peripheral nervous system and can arise in patients with neurofibromatosis type-1 (NF-1) or neurofibromatosis type-2 (NF-2). Functional interactions between NF1 and NF2 and broader mechanisms underlying malignant transformation of the Schwann lineage are unclear. Here we integrate bulk and single-cell genomics, biochemistry, and pharmacology across human samples, cell lines, and mouse allografts to identify cellular de-differentiation mechanisms driving malignant transformation and treatment resistance. We find DNA methylation groups of Schwann cell tumors can be distinguished by differentiation programs that correlate with response to the MEK inhibitor selumetinib. Functional genomic screening in NF1-mutant tumor cells reveals NF2 loss and PAK activation underlie selumetinib resistance, and we find that concurrent MEK and PAK inhibition is effective in vivo. These data support a de-differentiation paradigm underlying malignant transformation and treatment resistance of Schwann cell tumors and elucidate a functional link between NF1 and NF2.
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Affiliation(s)
- Harish N Vasudevan
- Department of Radiation Oncology, University of California San Francisco, San Francisco, CA, USA.
- Department of Neurological Surgery, University of California San Francisco, San Francisco, CA, USA.
| | - Emily Payne
- Department of Radiation Oncology, University of California San Francisco, San Francisco, CA, USA
- Department of Neurological Surgery, University of California San Francisco, San Francisco, CA, USA
| | - Cyrille L Delley
- Department of Bioengineering, University of California San Francisco, San Francisco, CA, USA
| | - S John Liu
- Department of Radiation Oncology, University of California San Francisco, San Francisco, CA, USA
- Department of Neurological Surgery, University of California San Francisco, San Francisco, CA, USA
- Department of Pathology, University of California San Francisco, San Francisco, CA, USA
| | - Kanish Mirchia
- Department of Radiation Oncology, University of California San Francisco, San Francisco, CA, USA
- Department of Neurological Surgery, University of California San Francisco, San Francisco, CA, USA
- Department of Pathology, University of California San Francisco, San Francisco, CA, USA
| | - Matthew J Sale
- Helen Diller Family Comprehensive Cancer Center, University of California San Francisco, San Francisco, CA, USA
| | - Sydney Lastella
- Department of Radiation Oncology, University of California San Francisco, San Francisco, CA, USA
- Department of Neurological Surgery, University of California San Francisco, San Francisco, CA, USA
- Department of Pathology, University of California San Francisco, San Francisco, CA, USA
| | - Maria Sacconi Nunez
- Department of Radiation Oncology, University of California San Francisco, San Francisco, CA, USA
- Department of Neurological Surgery, University of California San Francisco, San Francisco, CA, USA
| | | | - Charlotte D Eaton
- Department of Radiation Oncology, University of California San Francisco, San Francisco, CA, USA
- Department of Neurological Surgery, University of California San Francisco, San Francisco, CA, USA
- Department of Pathology, University of California San Francisco, San Francisco, CA, USA
| | - Tim Casey-Clyde
- Department of Radiation Oncology, University of California San Francisco, San Francisco, CA, USA
- Department of Neurological Surgery, University of California San Francisco, San Francisco, CA, USA
- Department of Pathology, University of California San Francisco, San Francisco, CA, USA
| | - Stephen T Magill
- Department of Neurological Surgery, Northwestern University, Chicago, IL, USA
| | - William C Chen
- Department of Radiation Oncology, University of California San Francisco, San Francisco, CA, USA
- Department of Neurological Surgery, University of California San Francisco, San Francisco, CA, USA
- Department of Pathology, University of California San Francisco, San Francisco, CA, USA
| | - Steve E Braunstein
- Department of Radiation Oncology, University of California San Francisco, San Francisco, CA, USA
| | - Arie Perry
- Department of Neurological Surgery, University of California San Francisco, San Francisco, CA, USA
- Department of Pathology, University of California San Francisco, San Francisco, CA, USA
| | - Line Jacques
- Department of Neurological Surgery, University of California San Francisco, San Francisco, CA, USA
| | - Alyssa T Reddy
- Department of Neurological Surgery, University of California San Francisco, San Francisco, CA, USA
- Department of Neurology, University of California San Francisco, San Francisco, CA, USA
| | - Melike Pekmezci
- Department of Pathology, University of California San Francisco, San Francisco, CA, USA
| | - Adam R Abate
- Department of Bioengineering, University of California San Francisco, San Francisco, CA, USA
| | - Frank McCormick
- Helen Diller Family Comprehensive Cancer Center, University of California San Francisco, San Francisco, CA, USA.
| | - David R Raleigh
- Department of Radiation Oncology, University of California San Francisco, San Francisco, CA, USA.
- Department of Neurological Surgery, University of California San Francisco, San Francisco, CA, USA.
- Department of Pathology, University of California San Francisco, San Francisco, CA, USA.
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3
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Flint AC, Mitchell DK, Angus SP, Smith AE, Bessler W, Jiang L, Mang H, Li X, Lu Q, Rodriguez B, Sandusky GE, Masters AR, Zhang C, Dang P, Koenig J, Johnson GL, Shen W, Liu J, Aggarwal A, Donoho GP, Willard MD, Bhagwat SV, Wade Clapp D, Rhodes SD. Combined CDK4/6 and ERK1/2 Inhibition Enhances Antitumor Activity in NF1-Associated Plexiform Neurofibroma. Clin Cancer Res 2023; 29:3438-3456. [PMID: 37406085 PMCID: PMC11060649 DOI: 10.1158/1078-0432.ccr-22-2854] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Revised: 04/06/2023] [Accepted: 06/29/2023] [Indexed: 07/07/2023]
Abstract
PURPOSE Plexiform neurofibromas (PNF) are peripheral nerve sheath tumors that cause significant morbidity in persons with neurofibromatosis type 1 (NF1), yet treatment options remain limited. To identify novel therapeutic targets for PNF, we applied an integrated multi-omic approach to quantitatively profile kinome enrichment in a mouse model that has predicted therapeutic responses in clinical trials for NF1-associated PNF with high fidelity. EXPERIMENTAL DESIGN Utilizing RNA sequencing combined with chemical proteomic profiling of the functionally enriched kinome using multiplexed inhibitor beads coupled with mass spectrometry, we identified molecular signatures predictive of response to CDK4/6 and RAS/MAPK pathway inhibition in PNF. Informed by these results, we evaluated the efficacy of the CDK4/6 inhibitor, abemaciclib, and the ERK1/2 inhibitor, LY3214996, alone and in combination in reducing PNF tumor burden in Nf1flox/flox;PostnCre mice. RESULTS Converging signatures of CDK4/6 and RAS/MAPK pathway activation were identified within the transcriptome and kinome that were conserved in both murine and human PNF. We observed robust additivity of the CDK4/6 inhibitor, abemaciclib, in combination with the ERK1/2 inhibitor, LY3214996, in murine and human NF1(Nf1) mutant Schwann cells. Consistent with these findings, the combination of abemaciclib (CDK4/6i) and LY3214996 (ERK1/2i) synergized to suppress molecular signatures of MAPK activation and exhibited enhanced antitumor activity in Nf1flox/flox;PostnCre mice in vivo. CONCLUSIONS These findings provide rationale for the clinical translation of CDK4/6 inhibitors alone and in combination with therapies targeting the RAS/MAPK pathway for the treatment of PNF and other peripheral nerve sheath tumors in persons with NF1.
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Affiliation(s)
- Alyssa C. Flint
- Department of Pediatrics, Herman B Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Dana K. Mitchell
- Department of Pediatrics, Herman B Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Steven P. Angus
- Department of Pediatrics, Herman B Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, IN, USA
- Department of Pharmacology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
- Indiana University Melvin and Bren Simon Comprehensive Cancer Center
| | - Abbi E. Smith
- Department of Pediatrics, Herman B Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Waylan Bessler
- Department of Pediatrics, Herman B Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Li Jiang
- Department of Pediatrics, Herman B Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Henry Mang
- Department of Pediatrics, Herman B Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Xiaohong Li
- Department of Pediatrics, Herman B Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Qingbo Lu
- Department of Pediatrics, Herman B Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Brooke Rodriguez
- Department of Pediatrics, Herman B Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, IN, USA
| | - George E. Sandusky
- Department of Pathology, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Andi R. Masters
- Clinical Pharmacology Analytical Core, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Chi Zhang
- Center for Computational Biology and Bioinformatics and Department of Medical and Molecular Genetics, Indiana University School of Medicine
| | - Pengtao Dang
- Center for Computational Biology and Bioinformatics and Department of Medical and Molecular Genetics, Indiana University School of Medicine
| | - Jenna Koenig
- Medical Scientist Training Program, Indiana University School of Medicine, Indianapolis, IN USA
| | - Gary L. Johnson
- Department of Pharmacology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
- UNC Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Weihua Shen
- Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, IN, USA
| | - Jiangang Liu
- Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, IN, USA
| | - Amit Aggarwal
- Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, IN, USA
| | - Gregory P. Donoho
- Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, IN, USA
| | - Melinda D. Willard
- Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, IN, USA
| | - Shripad V. Bhagwat
- Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, IN, USA
| | - D. Wade Clapp
- Department of Pediatrics, Herman B Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, IN, USA
- Indiana University Melvin and Bren Simon Comprehensive Cancer Center
| | - Steven D. Rhodes
- Department of Pediatrics, Herman B Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, IN, USA
- Indiana University Melvin and Bren Simon Comprehensive Cancer Center
- Division of Pediatric Hematology-Oncology, Indiana University School of Medicine, Indianapolis, IN, USA
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Abstract
Neurofibromatosis type 1 is a rare neurogenetic syndrome, characterized by pigmentary abnormalities, learning and social deficits, and a predisposition for benign and malignant tumor formation caused by germline mutations in the NF1 gene. With the cloning of the NF1 gene and the recognition that the encoded protein, neurofibromin, largely functions as a negative regulator of RAS activity, attention has mainly focused on RAS and canonical RAS effector pathway signaling relevant to disease pathogenesis and treatment. However, as neurofibromin is a large cytoplasmic protein the RAS regulatory domain of which occupies only 10% of its entire coding sequence, both canonical and non-canonical RAS pathway modulation, as well as the existence of potential non-RAS functions, are becoming apparent. In this Special article, we discuss our current understanding of neurofibromin function.
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Affiliation(s)
- Corina Anastasaki
- Department of Neurology, Washington University School of Medicine, St Louis, MO 63110, USA
| | - Paola Orozco
- Department of Neurology, Washington University School of Medicine, St Louis, MO 63110, USA
| | - David H Gutmann
- Department of Neurology, Washington University School of Medicine, St Louis, MO 63110, USA
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5
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Lu X, Tu SW, Chang W, Wan C, Wang J, Zang Y, Ramdas B, Kapur R, Lu X, Cao S, Zhang C. SSMD: a semi-supervised approach for a robust cell type identification and deconvolution of mouse transcriptomics data. Brief Bioinform 2021; 22:bbaa307. [PMID: 33230549 PMCID: PMC8294548 DOI: 10.1093/bib/bbaa307] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Revised: 09/18/2020] [Accepted: 10/11/2020] [Indexed: 01/04/2023] Open
Abstract
Deconvolution of mouse transcriptomic data is challenged by the fact that mouse models carry various genetic and physiological perturbations, making it questionable to assume fixed cell types and cell type marker genes for different data set scenarios. We developed a Semi-Supervised Mouse data Deconvolution (SSMD) method to study the mouse tissue microenvironment. SSMD is featured by (i) a novel nonparametric method to discover data set-specific cell type signature genes; (ii) a community detection approach for fixing cell types and their marker genes; (iii) a constrained matrix decomposition method to solve cell type relative proportions that is robust to diverse experimental platforms. In summary, SSMD addressed several key challenges in the deconvolution of mouse tissue data, including: (i) varied cell types and marker genes caused by highly divergent genotypic and phenotypic conditions of mouse experiment; (ii) diverse experimental platforms of mouse transcriptomics data; (iii) small sample size and limited training data source and (iv) capable to estimate the proportion of 35 cell types in blood, inflammatory, central nervous or hematopoietic systems. In silico and experimental validation of SSMD demonstrated its high sensitivity and accuracy in identifying (sub) cell types and predicting cell proportions comparing with state-of-the-arts methods. A user-friendly R package and a web server of SSMD are released via https://github.com/xiaoyulu95/SSMD.
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Affiliation(s)
- Xiaoyu Lu
- Department of BioHealth Informatics, Indiana University−Purdue University Indianapolis
| | - Szu-Wei Tu
- Department of BioHealth Informatics, Indiana University−Purdue University Indianapolis
| | - Wennan Chang
- Department of Electrical and Computer Engineering, Purdue University
| | - Changlin Wan
- Department of Electrical and Computer Engineering, Purdue University
| | - Jiashi Wang
- Biomedical Data Research Data (BDRD) Lab at Indiana University School of Medicine
| | - Yong Zang
- Department of Biostatistics and a member of the Center for Computational Biology and Bioinformatics, Indiana University School of Medicine
| | - Baskar Ramdas
- Department of Pediatrics, Indiana University School of Medicine
| | - Reuben Kapur
- Department of Pediatrics, Indiana University School of Medicine
| | - Xiongbin Lu
- Department of Medical and Molecular Genetics, Indiana University School of Medicine
| | - Sha Cao
- Computational Biology and Bioinformatics, Indiana University School of Medicine
| | - Chi Zhang
- Center for Computational Biology and Bioinformatics, Indiana University School of Medicine
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Liu JL, You YH, Tian ZW, Xiao M, Zheng JW, Wang YA, Du Z. Increased nuclear translation of YAP might act as a potential therapeutic target for NF1-related plexiform neurofibroma. Int J Med Sci 2021; 18:2008-2016. [PMID: 33850471 PMCID: PMC8040406 DOI: 10.7150/ijms.52431] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Accepted: 02/12/2021] [Indexed: 11/05/2022] Open
Abstract
Plexiform neurofibroma (pNF) in the head and neck is a characteristic feature in patients with neurofibromatosis type 1 (NF1) and is associated with significant disfigurement and psychological distress. Yes-associated protein (YAP), the key molecule involved in the Hippo pathway, is a vital transductor that regulates the proliferation and remyelinating of Schwann cells. The functional status of YAP and its feasibility as a potential target are still unknown in pNF. A total of 17 pNF tumor tissue specimens from the head and neck were collected at the Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine. Histologically, diagnosis of the Schwann cell region in pNF was achieved with hematoxylin-eosin staining, positive reactions for S100, SOX10, ERK and p-ERK, and low identification of Ki67 and SMA. Compared with normal nerve tissue, obviously increased nuclear YAP was detected in the Schwann cell region of pNF, with a mean nuclear staining rate of 67.11%. Based on the shNF1 Schwann cell model (the RSC96 cell line), with upregulated expression of RAS, ERK and p-ERK, p-YAP (Ser127) and p-YAP (Ser397) were significantly decreased and total YAP and nuclear YAP were increased. According to a confocal assay, the interference of shNF1 substantially promoted YAP nuclear translocation. Compared with control Schwann cells, the YAP inhibitor CA3 might have a more sensitive effect (IC50: NC=0.96±0.04, shNF1=0.71±0.02, P<0.05) on the shNF1 Schwann cell model than the classic MEK1/2 inhibitor selumetinib (IC50: NC=14.36±0.95, shNF1=24.83±0.98, P>0.05). For in vivo inhibition, the CA3 group and the selumetinib group displayed a similar inhibition effect with no significant difference. Increased nuclear translation and the functional state of YAP implies that the YAP-Hippo pathway might play an important role in the formation and remyelination of pNF. Compared with selumetinib, the YAP inhibitor can exhibit a similar but more sensitive effect on NF1-/- Schwann cells. These observations imply that YAP as a novel or adjuvant therapy target in the treatment of pNF.
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Affiliation(s)
- Jia-Liang Liu
- Department of Oral and Maxillofacial-Head and Neck Oncology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University, School of Medicine, Shanghai 200011, P.R. China.,National Clinical Research Center for Oral Diseases, Shanghai 200011, P.R. China.,Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai 200011, P.R. China
| | - Yuan-He You
- Department of Oral and Maxillofacial-Head and Neck Oncology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University, School of Medicine, Shanghai 200011, P.R. China.,National Clinical Research Center for Oral Diseases, Shanghai 200011, P.R. China.,Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai 200011, P.R. China
| | - Zhuo-Wei Tian
- Department of Oral and Maxillofacial-Head and Neck Oncology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University, School of Medicine, Shanghai 200011, P.R. China.,National Clinical Research Center for Oral Diseases, Shanghai 200011, P.R. China.,Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai 200011, P.R. China
| | - Meng Xiao
- Department of Oral and Maxillofacial-Head and Neck Oncology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University, School of Medicine, Shanghai 200011, P.R. China.,National Clinical Research Center for Oral Diseases, Shanghai 200011, P.R. China.,Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai 200011, P.R. China
| | - Jia-Wei Zheng
- Department of Oral and Maxillofacial-Head and Neck Oncology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University, School of Medicine, Shanghai 200011, P.R. China.,National Clinical Research Center for Oral Diseases, Shanghai 200011, P.R. China.,Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai 200011, P.R. China
| | - Yan-An Wang
- Department of Oral and Maxillofacial-Head and Neck Oncology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University, School of Medicine, Shanghai 200011, P.R. China.,National Clinical Research Center for Oral Diseases, Shanghai 200011, P.R. China.,Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai 200011, P.R. China
| | - Zhong Du
- Department of Oral and Maxillofacial-Head and Neck Oncology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University, School of Medicine, Shanghai 200011, P.R. China.,National Clinical Research Center for Oral Diseases, Shanghai 200011, P.R. China.,Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai 200011, P.R. China
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