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Barreto LLDM, Almeida SAD, Machado FC, Vitral RWF, Campos MJDS. Evaluation of orthodontists' attitudes and practices regarding residual resin removal methods. Dental Press J Orthod 2024; 29:e242402. [PMID: 38985078 PMCID: PMC11235571 DOI: 10.1590/2177-6709.29.3.e242402.oar] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2024] [Accepted: 04/29/2024] [Indexed: 07/11/2024] Open
Abstract
INTRODUCTION The removal of residual resins is a routine procedure in orthodontic clinics and of great importance to the final result of the treatment. OBJECTIVE To evaluate the main methods of residual resin removal used by orthodontists, and the main reasons for choosing these methods. METHODS A questionnaire consisting of 21 questions: 6 relating to demographic data and the other 15 relating to two methods used to remove residual resins (drills or pliers) was sent by e-mail to orthodontists registered with the Regional Councils of Dentistry of São Paulo and Rio de Janeiro (Brazil) within April and June, 2023. Questionnaires were sent back by 153 professionals. RESULTS Residual resin removal is always carried out with high speed drill for 44.7% of the sample, and with low speed drill for 28.7%; 61.3% use irrigation. The multi-laminate carbide bur is used by 82.5% of orthodontists. Pliers are always used by 12.4%. Resin-removing pliers with Widia are used in 39% of cases. The use of high speed was justified by the shorter working time, and the choice of pliers was justified by the smaller damage to the tooth enamel. CONCLUSION The most used residual resin removal method was the multi-laminate carbide bur at high speed with irrigation, justified the by shorter working time.
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Li X, Liu Y, Yang X, Li C, Song Z. The Oral Microbiota: Community Composition, Influencing Factors, Pathogenesis, and Interventions. Front Microbiol 2022; 13:895537. [PMID: 35572634 PMCID: PMC9100676 DOI: 10.3389/fmicb.2022.895537] [Citation(s) in RCA: 83] [Impact Index Per Article: 41.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Accepted: 04/06/2022] [Indexed: 12/12/2022] Open
Abstract
The human oral cavity provides a habitat for oral microbial communities. The complexity of its anatomical structure, its connectivity to the outside, and its moist environment contribute to the complexity and ecological site specificity of the microbiome colonized therein. Complex endogenous and exogenous factors affect the occurrence and development of the oral microbiota, and maintain it in a dynamic balance. The dysbiotic state, in which the microbial composition is altered and the microecological balance between host and microorganisms is disturbed, can lead to oral and even systemic diseases. In this review, we discuss the current research on the composition of the oral microbiota, the factors influencing it, and its relationships with common oral diseases. We focus on the specificity of the microbiota at different niches in the oral cavity, the communities of the oral microbiome, the mycobiome, and the virome within oral biofilms, and interventions targeting oral pathogens associated with disease. With these data, we aim to extend our understanding of oral microorganisms and provide new ideas for the clinical management of infectious oral diseases.
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Affiliation(s)
- Xinyi Li
- School of Stomatology, Southwest Medical University, Luzhou, China
| | - Yanmei Liu
- School of Stomatology, Southwest Medical University, Luzhou, China
| | - Xingyou Yang
- Molecular Biotechnology Platform, Public Center of Experimental Technology, School of Basic Medical Sciences, Southwest Medical University, Luzhou, China
| | - Chengwen Li
- Molecular Biotechnology Platform, Public Center of Experimental Technology, School of Basic Medical Sciences, Southwest Medical University, Luzhou, China
- *Correspondence: Chengwen Li,
| | - Zhangyong Song
- Molecular Biotechnology Platform, Public Center of Experimental Technology, School of Basic Medical Sciences, Southwest Medical University, Luzhou, China
- Zhangyong Song,
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Rodriguez-Hernandez CJ, Sokoloski KJ, Stocke KS, Dukka H, Jin S, Metzler MA, Zaitsev K, Shpak B, Shen D, Miller DP, Artyomov MN, Lamont RJ, Bagaitkar J. Microbiome-mediated incapacitation of interferon lambda production in the oral mucosa. Proc Natl Acad Sci U S A 2021; 118:e2105170118. [PMID: 34921113 PMCID: PMC8713781 DOI: 10.1073/pnas.2105170118] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Accepted: 11/03/2021] [Indexed: 09/29/2023] Open
Abstract
Here, we show that Porphyromonas gingivalis (Pg), an endogenous oral pathogen, dampens all aspects of interferon (IFN) signaling in a manner that is strikingly similar to IFN suppression employed by multiple viral pathogens. Pg suppressed IFN production by down-regulating several IFN regulatory factors (IRFs 1, 3, 7, and 9), proteolytically degrading STAT1 and suppressing the nuclear translocation of the ISGF3 complex, resulting in profound and systemic repression of multiple interferon-stimulated genes. Pg-induced IFN paralysis was not limited to murine models but was also observed in the oral tissues of human periodontal disease patients, where overabundance of Pg correlated with suppressed IFN generation. Mechanistically, multiple virulence factors and secreted proteases produced by Pg transcriptionally suppressed IFN promoters and also cleaved IFN receptors, making cells refractory to exogenous IFN and inducing a state of broad IFN paralysis. Thus, our data show a bacterial pathogen with equivalence to viruses in the down-regulation of host IFN signaling.
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Affiliation(s)
- Carlos J Rodriguez-Hernandez
- Department of Oral Immunology and Infectious Diseases, School of Dentistry, University of Louisville, Louisville, KY 40202
- Department of Microbiology and Immunology, University of Louisville, Louisville, KY 40202
| | - Kevin J Sokoloski
- Department of Microbiology and Immunology, University of Louisville, Louisville, KY 40202
| | - Kendall S Stocke
- Department of Oral Immunology and Infectious Diseases, School of Dentistry, University of Louisville, Louisville, KY 40202
| | - Himabindu Dukka
- Department of Diagnosis and Oral Health, University of Louisville, Louisville, KY 40202
| | - Shunying Jin
- Department of Oral Immunology and Infectious Diseases, School of Dentistry, University of Louisville, Louisville, KY 40202
| | - Melissa A Metzler
- Department of Oral Immunology and Infectious Diseases, School of Dentistry, University of Louisville, Louisville, KY 40202
| | - Konstantin Zaitsev
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO 63110
| | - Boris Shpak
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO 63110
| | - Daonan Shen
- Department of Oral Immunology and Infectious Diseases, School of Dentistry, University of Louisville, Louisville, KY 40202
| | - Daniel P Miller
- Department of Oral Immunology and Infectious Diseases, School of Dentistry, University of Louisville, Louisville, KY 40202
| | - Maxim N Artyomov
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO 63110
| | - Richard J Lamont
- Department of Oral Immunology and Infectious Diseases, School of Dentistry, University of Louisville, Louisville, KY 40202;
| | - Juhi Bagaitkar
- Department of Oral Immunology and Infectious Diseases, School of Dentistry, University of Louisville, Louisville, KY 40202;
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Radaic A, Kapila YL. The oralome and its dysbiosis: New insights into oral microbiome-host interactions. Comput Struct Biotechnol J 2021; 19:1335-1360. [PMID: 33777334 PMCID: PMC7960681 DOI: 10.1016/j.csbj.2021.02.010] [Citation(s) in RCA: 173] [Impact Index Per Article: 57.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Revised: 02/13/2021] [Accepted: 02/16/2021] [Indexed: 02/06/2023] Open
Abstract
The oralome is the summary of the dynamic interactions orchestrated between the ecological community of oral microorganisms (comprised of up to approximately 1000 species of bacteria, fungi, viruses, archaea and protozoa - the oral microbiome) that live in the oral cavity and the host. These microorganisms form a complex ecosystem that thrive in the dynamic oral environment in a symbiotic relationship with the human host. However, the microbial composition is significantly affected by interspecies and host-microbial interactions, which in turn, can impact the health and disease status of the host. In this review, we discuss the composition of the oralome and inter-species and host-microbial interactions that take place in the oral cavity and examine how these interactions change from healthy (eubiotic) to disease (dysbiotic) states. We further discuss the dysbiotic signatures associated with periodontitis and caries and their sequalae, (e.g., tooth/bone loss and pulpitis), and the systemic diseases associated with these oral diseases, such as infective endocarditis, atherosclerosis, diabetes, Alzheimer's disease and head and neck/oral cancer. We then discuss current computational techniques to assess dysbiotic oral microbiome changes. Lastly, we discuss current and novel techniques for modulation of the dysbiotic oral microbiome that may help in disease prevention and treatment, including standard hygiene methods, prebiotics, probiotics, use of nano-sized drug delivery systems (nano-DDS), extracellular polymeric matrix (EPM) disruption, and host response modulators.
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Affiliation(s)
- Allan Radaic
- Kapila Laboratory, Orofacial Sciences Department, School of Dentistry, University of California, San Francisco (UCSF), San Francisco, CA, USA
| | - Yvonne L. Kapila
- Kapila Laboratory, Orofacial Sciences Department, School of Dentistry, University of California, San Francisco (UCSF), San Francisco, CA, USA
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The Role of Bacterial and Fungal Human Respiratory Microbiota in COVID-19 Patients. BIOMED RESEARCH INTERNATIONAL 2021; 2021:6670798. [PMID: 33681368 PMCID: PMC7907751 DOI: 10.1155/2021/6670798] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/18/2020] [Revised: 01/04/2021] [Accepted: 02/11/2021] [Indexed: 02/06/2023]
Abstract
Recently, severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the etiologic agent of coronavirus disease 2019 (COVID-19), has led to a worldwide pandemic with millions of infected patients. Alteration in humans' microbiota was also reported in COVID-19 patients. The alteration in human microbiota may contribute to bacterial or viral infections and affect the immune system. Moreover, human's microbiota can be altered due to SARS-CoV-2 infection, and these microbiota changes can indicate the progression of COVID-19. While current studies focus on the gut microbiota, it seems necessary to pay attention to the lung microbiota in COVID-19. This study is aimed at reviewing respiratory microbiota dysbiosis among COVID-19 patients to encourage further studies on the field for assessment of SARS-CoV-2 and respiratory microbiota interaction.
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Tonoyan L, Chevalier M, Vincent-Bugnas S, Marsault R, Doglio A. Detection of Epstein-Barr Virus in Periodontitis: A Review of Methodological Approaches. Microorganisms 2020; 9:microorganisms9010072. [PMID: 33383930 PMCID: PMC7823867 DOI: 10.3390/microorganisms9010072] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Revised: 12/22/2020] [Accepted: 12/25/2020] [Indexed: 12/30/2022] Open
Abstract
Periodontitis, an inflammatory condition that affects the structures surrounding the tooth eventually leading to tooth loss, is one of the two biggest threats to oral health. Beyond oral health, it is associated with systemic diseases and even with cancer risk. Obviously, periodontitis represents a major global health problem with significant social and economic impact. Recently, a new paradigm was proposed in the etiopathogenesis of periodontitis involving a herpesviral–bacterial combination to promote long-term chronic inflammatory disease. Periodontitis as a risk factor for other systemic diseases can also be better explained based on viral–bacterial etiology. Significant efforts have brought numerous advances in revealing the links between periodontitis and Epstein–Barr virus (EBV), a gamma herpesvirus ubiquitous in the adult human population. The strong evidence from these studies may contribute to the advancement of periodontitis research and the ultimate control of the disease. Advancing the periodontitis research will require implementing suitable methods to establish EBV involvement in periodontitis. This review evaluates and summarizes the existing methods that allow the detection and diagnosis of EBV in periodontitis (also applicable in a more general way to other EBV-related diseases), and discusses the feasibility of the application of innovative emerging technologies.
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Affiliation(s)
- Lilit Tonoyan
- MICORALIS, Faculté de Chirurgie Dentaire, Université Côte D’Azur, 5 rue du 22ième BCA, 06357 Nice, France; (M.C.); (S.V.-B.); (R.M.); (A.D.)
- Correspondence: or
| | - Marlène Chevalier
- MICORALIS, Faculté de Chirurgie Dentaire, Université Côte D’Azur, 5 rue du 22ième BCA, 06357 Nice, France; (M.C.); (S.V.-B.); (R.M.); (A.D.)
| | - Séverine Vincent-Bugnas
- MICORALIS, Faculté de Chirurgie Dentaire, Université Côte D’Azur, 5 rue du 22ième BCA, 06357 Nice, France; (M.C.); (S.V.-B.); (R.M.); (A.D.)
- Pôle Odontologie, Centre Hospitalier Universitaire de Nice, 06000 Nice, France
| | - Robert Marsault
- MICORALIS, Faculté de Chirurgie Dentaire, Université Côte D’Azur, 5 rue du 22ième BCA, 06357 Nice, France; (M.C.); (S.V.-B.); (R.M.); (A.D.)
| | - Alain Doglio
- MICORALIS, Faculté de Chirurgie Dentaire, Université Côte D’Azur, 5 rue du 22ième BCA, 06357 Nice, France; (M.C.); (S.V.-B.); (R.M.); (A.D.)
- Unité de Thérapie Cellulaire et Génique (UTCG), Centre Hospitalier Universitaire de Nice, 06101 Nice, France
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Dalaie K, Fatemi SM, Behnaz M, Ghaffari S, Hemmatian S, Soltani AD. Effect of different debonding techniques on shear bond strength and enamel cracks in simulated clinical set-ups. J World Fed Orthod 2020; 9:18-24. [PMID: 32672663 DOI: 10.1016/j.ejwf.2019.11.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2019] [Revised: 11/03/2019] [Accepted: 11/16/2019] [Indexed: 10/25/2022]
Abstract
OBJECTIVE The aim of this study was to evaluate the relationship between debonding forces and enamel cracks length change between different debonding techniques. METHODS 80 extracted premolar teeth with intact buccal enamel were divided into five groups. In each group, enamel cracks were evaluated by stereomicroscope before and after debonding. All teeth were bonded with metal brackets by self-cure adhesive (3M, USA) and then debonded by bracket debonding plier, fixed on the UTM machine, through five methods based on location of plier on brackets: OGwing (occlusogingival), MDwing (mesiodistal), Oblique, OGbase (occlusogingival) and Cusp-base. RESULTS Based on non-parametric distribution of data, there was no significant difference between groups in ARI and enamel cracks length change. The highest shear bond strength for debonding presented in OG base method (25.25 ± 8.4) and the difference was statistically significant (P-value = 0.029). There was no linear relationship between shear bond strength and cracks length change and also between ARI and cracks length change. CONCLUSION Despite the lower cracks length change in Cusp-base method than other groups, there wasn't significant difference between debonding methods. Also the amount of debonding forces and ARI do not affect the changes of cracks length.
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Affiliation(s)
- Kazem Dalaie
- Assistant Professor, Department of Orthodontics, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Seyyed Mostafa Fatemi
- Assistant Professor, Department of Dental Biomaterials, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran; Medical Laser Research Center, Academic Center for Education, Culture and Research (ACECR), Tehran, Iran
| | - Mohammad Behnaz
- Assistant Professor, Department of Orthodontics, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Samin Ghaffari
- Postgraduate Student of Orthodontics, Dentofacial Deformities Research Center, Research Institute of Dental Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Sahar Hemmatian
- Postgraduate Student of Periodontology, Dentistry Faculty, Hamedan University of Medical Sciences, Hamedan, Iran
| | - Anahita Dehghani Soltani
- Postgraduate Student of Orthodontics, Dental Research Center, Research Institute of Dental Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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Abstract
The etiopathogenesis of severe periodontitis includes herpesvirus-bacteria coinfection. This article evaluates the pathogenicity of herpesviruses (cytomegalovirus and Epstein-Barr virus) and periodontopathic bacteria (Aggregatibacter actinomycetemcomitans and Porphyromonas gingivalis) and coinfection of these infectious agents in the initiation and progression of periodontitis. Cytomegalovirus and A. actinomycetemcomitans/P. gingivalis exercise synergistic pathogenicity in the development of localized ("aggressive") juvenile periodontitis. Cytomegalovirus and Epstein-Barr virus are associated with P. gingivalis in adult types of periodontitis. Periodontal herpesviruses that enter the general circulation may also contribute to disease development in various organ systems. A 2-way interaction is likely to occur between periodontal herpesviruses and periodontopathic bacteria, with herpesviruses promoting bacterial upgrowth, and bacterial factors reactivating latent herpesviruses. Bacterial-induced gingivitis may facilitate herpesvirus colonization of the periodontium, and herpesvirus infections may impede the antibacterial host defense and alter periodontal cells to predispose for bacterial adherence and invasion. Herpesvirus-bacteria synergistic interactions, are likely to comprise an important pathogenic determinant of aggressive periodontitis. However, mechanistic investigations into the molecular and cellular interaction between periodontal herpesviruses and bacteria are still scarce. Herpesvirus-bacteria coinfection studies may yield significant new discoveries of pathogenic determinants, and drug and vaccine targets to minimize or prevent periodontitis and periodontitis-related systemic diseases.
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Affiliation(s)
- Casey Chen
- Division of Periodontology, Diagnostic Sciences & Dental Hygiene, Herman Ostrow School of Dentistry, University of Southern California, Los Angeles, California, USA
| | - Pinghui Feng
- Section of Infection and Immunity, Herman Ostrow School of Dentistry, University of Southern California, Los Angeles, California, USA
| | - Jørgen Slots
- Division of Periodontology, Diagnostic Sciences & Dental Hygiene, Herman Ostrow School of Dentistry, University of Southern California, Los Angeles, California, USA
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Gruffaz M, Zhang T, Marshall V, Gonçalves P, Ramaswami R, Labo N, Whitby D, Uldrick TS, Yarchoan R, Huang Y, Gao SJ. Signatures of oral microbiome in HIV-infected individuals with oral Kaposi's sarcoma and cell-associated KSHV DNA. PLoS Pathog 2020; 16:e1008114. [PMID: 31951641 PMCID: PMC6992226 DOI: 10.1371/journal.ppat.1008114] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2019] [Revised: 01/30/2020] [Accepted: 09/27/2019] [Indexed: 01/01/2023] Open
Abstract
Infection by Kaposi's sarcoma-associated herpesvirus (KSHV) is necessary for the development of Kaposi's sarcoma (KS), which most often develops in HIV-infected individuals. KS frequently has oral manifestations and KSHV DNA can be detected in oral cells. Numerous types of cancer are associated with the alteration of microbiome including bacteria and virus. We hypothesize that oral bacterial microbiota affects or is affected by oral KS and the presence of oral cell-associated KSHV DNA. In this study, oral and blood specimens were collected from a cohort of HIV/KSHV-coinfected individuals all previously diagnosed with KS, and were classified as having oral KS with any oral cell-associated KSHV DNA status (O-KS, n = 9), no oral KS but with oral cell-associated KSHV DNA (O-KSHV, n = 10), or with neither oral KS nor oral cell-associated KSHV DNA (No KSHV, n = 10). We sequenced the hypervariable V1-V2 region of the 16S rRNA gene present in oral cell-associated DNA by next generation sequencing. The diversity, richness, relative abundance of operational taxonomic units (OTUs) and taxonomic composition of oral microbiota were analyzed and compared across the 3 studied groups. We found impoverishment of oral microbial diversity and enrichment of specific microbiota in O-KS individuals compared to O-KSHV or No KSHV individuals. These results suggest that HIV/KSHV coinfection and oral microbiota might impact one another and influence the development of oral KS.
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Affiliation(s)
- Marion Gruffaz
- Department of Molecular Microbiology and Immunology, Keck School of Medicine, University of Southern California, Los Angeles, United States of America
| | - Tinghe Zhang
- Department of Electrical and Computer Engineering, University of Texas at San Antonio, San Antonio, Texas, United States of America
| | - Vickie Marshall
- Viral Oncology Section, AIDS and Cancer Virus Program, Leidos Biomedical Research Inc., Frederick National Laboratory for Cancer Research, Frederick, Maryland, United States of America
| | - Priscila Gonçalves
- HIV and AIDS Malignancy Branch, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland, United States of America
| | - Ramya Ramaswami
- HIV and AIDS Malignancy Branch, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland, United States of America
| | - Nazzarena Labo
- Viral Oncology Section, AIDS and Cancer Virus Program, Leidos Biomedical Research Inc., Frederick National Laboratory for Cancer Research, Frederick, Maryland, United States of America
| | - Denise Whitby
- Viral Oncology Section, AIDS and Cancer Virus Program, Leidos Biomedical Research Inc., Frederick National Laboratory for Cancer Research, Frederick, Maryland, United States of America
| | - Thomas S. Uldrick
- HIV and AIDS Malignancy Branch, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland, United States of America
- Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America
| | - Robert Yarchoan
- HIV and AIDS Malignancy Branch, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland, United States of America
| | - Yufei Huang
- Department of Electrical and Computer Engineering, University of Texas at San Antonio, San Antonio, Texas, United States of America
- Department of Epidemiology and Biostatistics, The University of Texas Health San Antonio, San Antonio, Texas, United States of America
| | - Shou-Jiang Gao
- Department of Molecular Microbiology and Immunology, Keck School of Medicine, University of Southern California, Los Angeles, United States of America
- UPMC Hillman Cancer Center, Department of Microbiology and Molecular Genetics, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America
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