1
|
Pushalkar S, Wu S, Maity S, Pressler M, Rendleman J, Vitrinel B, Jeffery L, Abdelhadi R, Chen M, Ross T, Carlock M, Choi H, Vogel C. Complex changes in serum protein levels in COVID-19 convalescents. Sci Rep 2024; 14:4479. [PMID: 38396092 PMCID: PMC10891133 DOI: 10.1038/s41598-024-54534-7] [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: 11/03/2023] [Accepted: 02/13/2024] [Indexed: 02/25/2024] Open
Abstract
The COVID-19 pandemic, triggered by severe acute respiratory syndrome coronavirus 2, has affected millions of people worldwide. Much research has been dedicated to our understanding of COVID-19 disease heterogeneity and severity, but less is known about recovery associated changes. To address this gap in knowledge, we quantified the proteome from serum samples from 29 COVID-19 convalescents and 29 age-, race-, and sex-matched healthy controls. Samples were acquired within the first months of the pandemic. Many proteins from pathways known to change during acute COVID-19 illness, such as from the complement cascade, coagulation system, inflammation and adaptive immune system, had returned to levels seen in healthy controls. In comparison, we identified 22 and 15 proteins with significantly elevated and lowered levels, respectively, amongst COVID-19 convalescents compared to healthy controls. Some of the changes were similar to those observed for the acute phase of the disease, i.e. elevated levels of proteins from hemolysis, the adaptive immune systems, and inflammation. In contrast, some alterations opposed those in the acute phase, e.g. elevated levels of CETP and APOA1 which function in lipid/cholesterol metabolism, and decreased levels of proteins from the complement cascade (e.g. C1R, C1S, and VWF), the coagulation system (e.g. THBS1 and VWF), and the regulation of the actin cytoskeleton (e.g. PFN1 and CFL1) amongst COVID-19 convalescents. We speculate that some of these shifts might originate from a transient decrease in platelet counts upon recovery from the disease. Finally, we observed race-specific changes, e.g. with respect to immunoglobulins and proteins related to cholesterol metabolism.
Collapse
Affiliation(s)
- Smruti Pushalkar
- Department of Biology, Center for Genomics and Systems Biology, New York University, New York, NY, USA.
| | - Shaohuan Wu
- Department of Biology, Center for Genomics and Systems Biology, New York University, New York, NY, USA
| | - Shuvadeep Maity
- Department of Biology, Center for Genomics and Systems Biology, New York University, New York, NY, USA
- Birla Institute of Technology and Science-Pilani (BITS Pilani), Hyderabad, India
| | - Matthew Pressler
- Department of Biology, Center for Genomics and Systems Biology, New York University, New York, NY, USA
| | - Justin Rendleman
- Department of Biology, Center for Genomics and Systems Biology, New York University, New York, NY, USA
| | - Burcu Vitrinel
- Department of Biology, Center for Genomics and Systems Biology, New York University, New York, NY, USA
| | - Lauren Jeffery
- Department of Biology, Center for Genomics and Systems Biology, New York University, New York, NY, USA
| | - Ryah Abdelhadi
- Department of Biology, Center for Genomics and Systems Biology, New York University, New York, NY, USA
| | - Mechi Chen
- Department of Biology, Center for Genomics and Systems Biology, New York University, New York, NY, USA
| | - Ted Ross
- Cleveland Clinic Florida Research & Innovation Center, Port St. Lucie, FL, USA
| | - Michael Carlock
- Cleveland Clinic Florida Research & Innovation Center, Port St. Lucie, FL, USA
| | - Hyungwon Choi
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Christine Vogel
- Department of Biology, Center for Genomics and Systems Biology, New York University, New York, NY, USA.
| |
Collapse
|
2
|
Bayrak CS, Forst C, Jones DR, Gresham D, Pushalkar S, Wu S, Vogel C, Mahal L, Ghedin E, Ross T, García-Sastre A, Zhang B. Patient Subtyping Analysis of Baseline Multi-omic Data Reveals Distinct Pre-immune States Predictive of Vaccination Responses. bioRxiv 2024:2024.01.18.576213. [PMID: 38328256 PMCID: PMC10849502 DOI: 10.1101/2024.01.18.576213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/09/2024]
Abstract
Understanding the molecular mechanisms that underpin diverse vaccination responses is a critical step toward developing efficient vaccines. Molecular subtyping approaches can offer valuable insights into the heterogeneous nature of responses and aid in the design of more effective vaccines. In order to explore the molecular signatures associated with the vaccine response, we analyzed baseline transcriptomics data from paired samples of whole blood, proteomics and glycomics data from serum, and metabolomics data from urine, obtained from influenza vaccine recipients (2019-2020 season) prior to vaccination. After integrating the data using a network-based model, we performed a subtyping analysis. The integration of multiple data modalities from 62 samples resulted in five baseline molecular subtypes with distinct molecular signatures. These baseline subtypes differed in the expression of pre-existing adaptive or innate immunity signatures, which were linked to significant variation across subtypes in baseline immunoglobulin A (IgA) and hemagglutination inhibition (HAI) titer levels. It is worth noting that these significant differences persisted through day 28 post-vaccination, indicating the effect of initial immune state on vaccination response. These findings highlight the significance of interpersonal variation in baseline immune status as a crucial factor in determining vaccine response and efficacy. Ultimately, incorporating molecular profiling could enable personalized vaccine optimization.
Collapse
|
3
|
Xu F, Saxena D, Pushalkar S, Miller G. Reply to: Revisiting the intrinsic mycobiome in pancreatic cancer. Nature 2023; 620:E7-E9. [PMID: 37532815 DOI: 10.1038/s41586-023-06293-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/04/2023]
Affiliation(s)
- Fangxi Xu
- Department of Molecular Pathobiology, New York University College of Dentistry, New York, NY, USA
| | - Deepak Saxena
- Department of Molecular Pathobiology, New York University College of Dentistry, New York, NY, USA
- Laura and Isaac Perlmutter Cancer Center, NYU Grossman School of Medicine, New York, NY, USA
- Department of Surgery, NYU Grossman School of Medicine, New York, NY, USA
| | | | | |
Collapse
|
4
|
Wu S, Pushalkar S, Maity S, Pressler M, Rendleman J, Vitrinel B, Carlock M, Ross T, Choi H, Vogel C. Proteomic Signatures of the Serological Response to Influenza Vaccination in a Large Human Cohort Study. Viruses 2022; 14:v14112479. [PMID: 36366577 PMCID: PMC9696600 DOI: 10.3390/v14112479] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 11/03/2022] [Accepted: 11/06/2022] [Indexed: 11/11/2022] Open
Abstract
The serological response to the influenza virus vaccine is highly heterogeneous for reasons that are not entirely clear. While the impact of demographic factors such as age, body mass index (BMI), sex, prior vaccination and titer levels are known to impact seroconversion, they only explain a fraction of the response. To identify signatures of the vaccine response, we analyzed 273 protein levels from 138 serum samples of influenza vaccine recipients (2019-2020 season). We found that levels of proteins functioning in cholesterol transport were positively associated with seroconversion, likely linking to the known impact of BMI. When adjusting seroconversion for the demographic factors, we identified additional, unexpected signatures: proteins regulating actin cytoskeleton dynamics were significantly elevated in participants with high adjusted seroconversion. Viral strain specific analysis showed that this trend was largely driven by the H3N2 strain. Further, we identified complex associations between adjusted seroconversion and other factors: levels of proteins of the complement system associated positively with adjusted seroconversion in younger participants, while they were associated negatively in the older population. We observed the opposite trends for proteins of high density lipoprotein remodeling, transcription, and hemostasis. In sum, careful integrative modeling can extract new signatures of seroconversion from highly variable data that suggest links between the humoral response as well as immune cell communication and migration.
Collapse
Affiliation(s)
- Shaohuan Wu
- Center for Genomics and Systems Biology, New York University, New York, NY 10003, USA
- Correspondence: (S.W.); (C.V.)
| | - Smruti Pushalkar
- Center for Genomics and Systems Biology, New York University, New York, NY 10003, USA
| | - Shuvadeep Maity
- Center for Genomics and Systems Biology, New York University, New York, NY 10003, USA
- Birla Institute of Technology and Science (BITS)-Pilani (Hyderabad Campus), Hyderabad 500078, India
| | - Matthew Pressler
- Center for Genomics and Systems Biology, New York University, New York, NY 10003, USA
| | - Justin Rendleman
- Center for Genomics and Systems Biology, New York University, New York, NY 10003, USA
| | - Burcu Vitrinel
- Center for Genomics and Systems Biology, New York University, New York, NY 10003, USA
| | - Michael Carlock
- Department of Infectious Diseases, College of Veterinary Medicine, University of Georgia, Athens, GA 30602, USA
- Center for Vaccines and Immunology, University of Georgia, Athens, GA 30605, USA
| | - Ted Ross
- Department of Infectious Diseases, College of Veterinary Medicine, University of Georgia, Athens, GA 30602, USA
- Center for Vaccines and Immunology, University of Georgia, Athens, GA 30605, USA
| | - Hyungwon Choi
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117599, Singapore
| | - Christine Vogel
- Center for Genomics and Systems Biology, New York University, New York, NY 10003, USA
- Correspondence: (S.W.); (C.V.)
| |
Collapse
|
5
|
Abstract
A key to improving vaccine design and vaccination strategy is to understand the mechanism behind the variation of vaccine response with host factors. Glycosylation, a critical modulator of immunity, has no clear role in determining vaccine responses. To gain insight into the association between glycosylation and vaccine-induced antibody levels, we profiled the pre- and postvaccination serum protein glycomes of 160 Caucasian adults receiving the FLUZONE influenza vaccine during the 2019-2020 influenza season using lectin microarray technology. We found that prevaccination levels of Lewis A antigen (Lea) are significantly higher in nonresponders than responders. Glycoproteomic analysis showed that Lea-bearing proteins are enriched in complement activation pathways, suggesting a potential role of glycosylation in tuning the activities of complement proteins, which may be implicated in mounting vaccine responses. In addition, we observed a postvaccination increase in sialyl Lewis X antigen (sLex) and a decrease in high mannose glycans among high responders, which were not observed in nonresponders. These data suggest that the immune system may actively modulate glycosylation as part of its effort to establish effective protection postvaccination.
Collapse
Affiliation(s)
- Rui Qin
- Department
of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
| | - Guanmin Meng
- Department
of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
| | - Smruti Pushalkar
- Center
for Genomics and Systems Biology, Department of Biology, New York University, New York, New York 10003, United States
| | - Michael A. Carlock
- Center
for Vaccines and Immunology, University
of Georgia, Athens, Georgia 30602, United States
| | - Ted M. Ross
- Center
for Vaccines and Immunology, University
of Georgia, Athens, Georgia 30602, United States
| | - Christine Vogel
- Center
for Genomics and Systems Biology, Department of Biology, New York University, New York, New York 10003, United States
| | - Lara K. Mahal
- Department
of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
| |
Collapse
|
6
|
Thomas SC, Xu F, Pushalkar S, Lin Z, Thakor N, Vardhan M, Flaminio Z, Khodadadi-Jamayran A, Vasconcelos R, Akapo A, Queiroz E, Bederoff M, Janal MN, Guo Y, Aguallo D, Gordon T, Corby PM, Kamer AR, Li X, Saxena D. Electronic Cigarette Use Promotes a Unique Periodontal Microbiome. mBio 2022; 13:e0007522. [PMID: 35189698 PMCID: PMC8903898 DOI: 10.1128/mbio.00075-22] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Accepted: 01/28/2022] [Indexed: 12/15/2022] Open
Abstract
Electronic cigarettes (e-cigs) have become prevalent as an alternative to conventional cigarette smoking, particularly in youth. E-cig aerosols contain unique chemicals which alter the oral microbiome and promote dysbiosis in ways we are just beginning to investigate. We conducted a 6-month longitudinal study involving 84 subjects who were either e-cig users, conventional smokers, or nonsmokers. Periodontal condition, cytokine levels, and subgingival microbial community composition were assessed, with periodontal, clinical, and cytokine measures reflecting cohort habit and positively correlating with pathogenic taxa (e.g., Treponema, Saccharibacteria, and Porphyromonas). α-Diversity increased similarly across cohorts longitudinally, yet each cohort maintained a unique microbiome. The e-cig microbiome shared many characteristics with the microbiome of conventional smokers and some with nonsmokers, yet it maintained a unique subgingival microbial community enriched in Fusobacterium and Bacteroidales (G-2). Our data suggest that e-cig use promotes a unique periodontal microbiome, existing as a stable heterogeneous state between those of conventional smokers and nonsmokers and presenting unique oral health challenges. IMPORTANCE Electronic cigarette (e-cig) use is gaining in popularity and is often perceived as a healthier alternative to conventional smoking. Yet there is little evidence of the effects of long-term use of e-cigs on oral health. Conventional cigarette smoking is a prominent risk factor for the development of periodontitis, an oral disease affecting nearly half of adults over 30 years of age in the United States. Periodontitis is initiated through a disturbance in the microbial biofilm communities inhabiting the unique space between teeth and gingival tissues. This disturbance instigates host inflammatory and immune responses and, if left untreated, leads to tooth and bone loss and systemic diseases. We found that the e-cig user's periodontal microbiome is unique, eliciting unique host responses. Yet some similarities to the microbiomes of both conventional smokers and nonsmokers exist, with strikingly more in common with that of cigarette smokers, suggesting that there is a unique periodontal risk associated with e-cig use.
Collapse
Affiliation(s)
- Scott C. Thomas
- Department of Molecular Pathobiology, New York University College of Dentistry, New York, New York, USA
| | - Fangxi Xu
- Department of Molecular Pathobiology, New York University College of Dentistry, New York, New York, USA
| | - Smruti Pushalkar
- Department of Molecular Pathobiology, New York University College of Dentistry, New York, New York, USA
| | - Ziyan Lin
- Applied Bioinformatics Labs, New York University School of Medicine, New York, New York, USA
| | - Nirali Thakor
- Department of Molecular Pathobiology, New York University College of Dentistry, New York, New York, USA
| | - Mridula Vardhan
- Department of Molecular Pathobiology, New York University College of Dentistry, New York, New York, USA
| | - Zia Flaminio
- Department of Molecular Pathobiology, New York University College of Dentistry, New York, New York, USA
| | | | - Rebeca Vasconcelos
- Department of Molecular Pathobiology, New York University College of Dentistry, New York, New York, USA
| | - Adenike Akapo
- Department of Molecular Pathobiology, New York University College of Dentistry, New York, New York, USA
| | - Erica Queiroz
- Department of Molecular Pathobiology, New York University College of Dentistry, New York, New York, USA
| | - Maria Bederoff
- Department of Molecular Pathobiology, New York University College of Dentistry, New York, New York, USA
| | - Malvin N. Janal
- Department of Epidemiology & Health Promotion, New York University College of Dentistry, New York, New York, USA
| | - Yuqi Guo
- Department of Molecular Pathobiology, New York University College of Dentistry, New York, New York, USA
| | - Deanna Aguallo
- Department of Molecular Pathobiology, New York University College of Dentistry, New York, New York, USA
| | - Terry Gordon
- Department of Environmental Medicine, New York University School of Medicine, New York, New York, USA
| | - Patricia M. Corby
- Department of Oral Medicine, School of Dental Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Angela R. Kamer
- Department of Periodontology and Implant Dentistry, New York University College of Dentistry, New York, New York, USA
| | - Xin Li
- Department of Molecular Pathobiology, New York University College of Dentistry, New York, New York, USA
| | - Deepak Saxena
- Department of Molecular Pathobiology, New York University College of Dentistry, New York, New York, USA
| |
Collapse
|
7
|
Leinwand JC, Paul B, Chen R, Xu F, Sierra MA, Paluru MM, Nanduri S, Alcantara Hirsch CG, Shadaloey SA, Yang F, Adam SA, Li Q, Bandel M, Gakhal I, Appiah L, Guo Y, Vardhan M, Flaminio ZJ, Grodman ER, Mermelstein A, Wang W, Diskin B, Aykut B, Khan M, Werba G, Pushalkar S, McKinstry M, Kluger Z, Park JJ, Hsieh B, Dancel-Manning K, Liang FX, Park JS, Saxena A, Li X, Theise ND, Saxena D, Miller G. Intrahepatic microbes govern liver immunity by programming NKT cells. J Clin Invest 2022; 132:151725. [PMID: 35175938 PMCID: PMC9012289 DOI: 10.1172/jci151725] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Accepted: 02/16/2022] [Indexed: 11/17/2022] Open
Abstract
The gut microbiome shapes local and systemic immunity. The liver is presumed to be a protected sterile site. As such, a hepatic microbiome has not been examined. Here, we showed a liver microbiome in mice and humans that is distinct from the gut and is enriched in Proteobacteria. It undergoes dynamic alterations with age and is influenced by the environment and host physiology. Fecal microbial transfer experiments revealed that the liver microbiome is populated from the gut in a highly selective manner. Hepatic immunity is dependent on the microbiome, specifically Bacteroidetes species. Targeting Bacteroidetes with oral antibiotics reduced hepatic immune cells by ~90%, prevented APC maturation, and mitigated adaptive immunity. Mechanistically, our findings are consistent with presentation of Bacteroidetes-derived glycosphingolipids to NKT cells promoting CCL5 signaling, which drives hepatic leukocyte expansion and activation, among other possible host-microbe interactions. Collectively, we reveal a microbial - glycosphingolipid - NKT - CCL5 axis that underlies hepatic immunity.
Collapse
Affiliation(s)
- Joshua C Leinwand
- Department of Surgery, NYU Langone Medical Center, New York, United States of America
| | - Bidisha Paul
- Department of Molecular Pathobiology, NYU College of Dentistry, New York, United States of America
| | - Ruonan Chen
- Department of Surgery, NYU Langone Medical Center, New York, United States of America
| | - Fangxi Xu
- Department of Molecular Pathobiology, NYU College of Dentistry, New York, United States of America
| | - Maria A Sierra
- Department of Molecular Pathobiology, NYU College of Dentistry, New York, United States of America
| | - Madan M Paluru
- Department of Surgery, NYU Langone Medical Center, New York, United States of America
| | - Sumant Nanduri
- Department of Surgery, NYU Langone Medical Center, New York, United States of America
| | | | - Sorin Aa Shadaloey
- Department of Surgery, NYU Langone Medical Center, New York, United States of America
| | - Fan Yang
- Department of Surgery, NYU Langone Medical Center, New York, United States of America
| | - Salma A Adam
- Department of Surgery, NYU Langone Medical Center, New York, United States of America
| | - Qianhao Li
- Department of Molecular Pathobiology, NYU College of Dentistry, New York, United States of America
| | - Michelle Bandel
- Department of Surgery, NYU Langone Medical Center, New York, United States of America
| | - Inderdeep Gakhal
- Department of Surgery, NYU Langone Medical Center, New York, United States of America
| | - Lara Appiah
- Department of Surgery, NYU Langone Medical Center, New York, United States of America
| | - Yuqi Guo
- Department of Molecular Pathobiology, NYU College of Dentistry, New York, United States of America
| | - Mridula Vardhan
- Department of Molecular Pathobiology, NYU College of Dentistry, New York, United States of America
| | - Zia J Flaminio
- Department of Molecular Pathobiology, NYU College of Dentistry, New York, United States of America
| | - Emilie R Grodman
- Department of Molecular Pathobiology, NYU College of Dentistry, New York, United States of America
| | - Ari Mermelstein
- Department of Surgery, NYU Langone Medical Center, New York, United States of America
| | - Wei Wang
- Department of Surgery, NYU Langone Medical Center, New York, United States of America
| | - Brian Diskin
- Department of Surgery, NYU Langone Medical Center, New York, United States of America
| | - Berk Aykut
- Department of Surgery, NYU Langone Medical Center, New York, United States of America
| | - Mohammed Khan
- Department of Surgery, NYU Langone Medical Center, New York, United States of America
| | - Gregor Werba
- Department of Surgery, NYU Langone Medical Center, New York, United States of America
| | - Smruti Pushalkar
- Department of Molecular Pathobiology, NYU College of Dentistry, New York, United States of America
| | - Mia McKinstry
- Department of Surgery, NYU Langone Medical Center, New York, United States of America
| | - Zachary Kluger
- Department of Surgery, NYU Langone Medical Center, New York, United States of America
| | - Jaimie J Park
- Department of Surgery, NYU Langone Medical Center, New York, United States of America
| | - Brandon Hsieh
- Department of Medicine, NYU Langone Medical Center, New York, United States of America
| | - Kristen Dancel-Manning
- Department of Cell Biology, NYU Langone Medical Center, New York, United States of America
| | - Feng-Xia Liang
- Department of Cell Biology, NYU Langone Medical Center, New York, United States of America
| | - James S Park
- Department of Medicine, NYU Langone Medical Center, New York, United States of America
| | - Anjana Saxena
- Department of Biology, City University of New York, New York, United States of America
| | - Xin Li
- Department of Molecular Pathobiology, NYU College of Dentistry, New York, United States of America
| | - Neil D Theise
- Department of Pathology, NYU Langone Medical Center, New York, United States of America
| | - Deepak Saxena
- Department of Molecular Pathobiology, NYU College of Dentistry, New York, United States of America
| | - George Miller
- Department of Surgery, NYU Langone Medical Center, New York, United States of America
| |
Collapse
|
8
|
Xu F, Pushalkar S, Lin Z, Thomas SC, Persaud JK, Sierra MA, Vardhan M, Vasconcelos R, Akapo A, Guo Y, Gordon T, Corby PM, Kamer AR, Li X, Saxena D. Electronic cigarette use enriches periodontal pathogens. Mol Oral Microbiol 2022; 37:63-76. [PMID: 34997976 DOI: 10.1111/omi.12361] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Revised: 01/03/2022] [Accepted: 01/06/2022] [Indexed: 11/28/2022]
Abstract
The effect of electronic cigarette (e-cigarette) smoking, especially its long-term impact on oral health, is poorly understood. Here, we conducted a longitudinal clinical study with two study visits, 6 months apart, to investigate the effect of e-cigarette use on the bacterial community structure in the saliva of 101 periodontitis patients. Our data demonstrated that e-cigarette use altered the oral microbiome in periodontitis patients, enriching members of the Filifactor, Treponema, and Fusobacterium taxa. For patients at the same periodontal disease stage, cigarette smokers and e-cigarette smokers shared more similarities in their oral bacterial composition. E-cigarette smoking may have a similar potential as cigarette smoking at altering the bacterial composition of saliva over time, leading to an increase in the relative abundance of periodontal disease-associated pathogens such as Porphyromonas gingivalis and Fusobacterium nucleatum. The correlation analysis showed that certain genera, such as Dialister, Selenomonas, and Leptotrichia in the e-cigarette smoking group, were positively correlated with the levels of proinflammatory cytokines, including IFN-γ, IL-1β, and TNF-α. E-cigarette use was also associated with elevated levels of proinflammatory cytokines such as IFN-γ and TNF-α, which contribute to oral microbiome dysbiosis and advanced disease state. This article is protected by copyright. All rights reserved.
Collapse
Affiliation(s)
- Fangxi Xu
- Department of Molecular Pathobiology, New York University College of Dentistry, New York, NY, United States
| | - Smruti Pushalkar
- Department of Molecular Pathobiology, New York University College of Dentistry, New York, NY, United States
| | - Ziyan Lin
- Department of Medicine, New York University School of Medicine, New York, NY, United States
| | - Scott C Thomas
- Department of Molecular Pathobiology, New York University College of Dentistry, New York, NY, United States
| | - Julia Kishanie Persaud
- Department of Molecular Pathobiology, New York University College of Dentistry, New York, NY, United States
| | - Maria A Sierra
- Department of Molecular Pathobiology, New York University College of Dentistry, New York, NY, United States
| | - Mridula Vardhan
- Department of Molecular Pathobiology, New York University College of Dentistry, New York, NY, United States
| | - Rebeca Vasconcelos
- Department of Molecular Pathobiology, New York University College of Dentistry, New York, NY, United States
| | - Adenike Akapo
- Department of Molecular Pathobiology, New York University College of Dentistry, New York, NY, United States
| | - Yuqi Guo
- Department of Molecular Pathobiology, New York University College of Dentistry, New York, NY, United States
| | - Terry Gordon
- Department of Environmental Medicine, New York University School of Medicine, New York, NY, United States
| | - Patricia M Corby
- Department of Oral Medicine, School of Dental Medicine, University of Pennsylvania, Philadelphia, PA, United States
| | - Angela R Kamer
- Department of Periodontology and Implant Dentistry, New York University College of Dentistry, New York, NY, United States
| | - Xin Li
- Department of Molecular Pathobiology, New York University College of Dentistry, New York, NY, United States
| | - Deepak Saxena
- Department of Molecular Pathobiology, New York University College of Dentistry, New York, NY, United States
| |
Collapse
|
9
|
Xu F, Aboseria E, Janal MN, Pushalkar S, Bederoff MV, Vasconcelos R, Sapru S, Paul B, Queiroz E, Makwana S, Solarewicz J, Guo Y, Aguallo D, Gomez C, Shelly D, Aphinyanaphongs Y, Gordon T, Corby PM, Kamer AR, Li X, Saxena D. Comparative Effects of E-Cigarette Aerosol on Periodontium of Periodontitis Patients. Front Oral Health 2021; 2:729144. [PMID: 35048050 PMCID: PMC8757783 DOI: 10.3389/froh.2021.729144] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Accepted: 08/12/2021] [Indexed: 11/17/2022] Open
Abstract
Introduction: Tobacco use is one of the main causes of periodontitis. E-cigarette are gaining in popularity, and studies are needed to better understand the impact of e-cigarettes on oral health. Objective: To perform a longitudinal study to evaluate the adverse effects of e-cigarettes on periodontal health. Methods: Naïve E-cigarette users, cigarette smokers, and non-smokers were recruited using newspaper and social media. Age, gender, and ethnicity, were recorded. Participants were scheduled for two visits 6 months apart. At each visit, we collected data on the frequency and magnitude of e-cigarette and cigarette use, and alcohol consumption. Carbon monoxide (CO) levels, cotinine levels, salivary flow rate, periodontal probing depth (PD), bleeding on probing (BoP), and clinical attachment loss (CAL) were also determined at both baseline and follow-up visits and compared between groups with two-way repeated measures ANOVA. Periodontal diagnosis and other categorical variables were compared between groups with the chi-square statistic and logistic regression. Results: We screened 159 subjects and recruited 119 subjects. One-hundred-one subjects (31 cigarette smokers, 32 e-cigarette smokers, and 38 non-smokers) completed every assessment in both visits. The retention and compliance rate of subjects was 84.9%. The use of social media and craigslist was significant in recruiting e-cigarette subjects. Ethnicity and race differed between groups, as did average age in the male subjects. Carbon monoxide and salivary cotinine levels were highest among cigarette smokers. Bleeding on probing and average PDs similarly increased over time in all three groups, but CAL uniquely increased in e-cigarette smokers. Rates of severe periodontal disease were higher in cigarette smokers and e-cigarette users than non-smokers, but interpretation is confounded by the older age of the cigarette smokers. Conclusion: Among the recruited participants, CAL after 6 months was significantly worse only in the e-cigarette smokers. This study design and protocol will assist in future larger studies on e-cigarette and oral health.
Collapse
Affiliation(s)
- Fangxi Xu
- Department of Molecular Pathobiology, New York University College of Dentistry, New York, NY, United States
| | - Eman Aboseria
- Department of Molecular Pathobiology, New York University College of Dentistry, New York, NY, United States
| | - Malvin N. Janal
- Department of Epidemiology and Health Promotion, New York University College of Dentistry, New York, NY, United States
| | - Smruti Pushalkar
- Department of Molecular Pathobiology, New York University College of Dentistry, New York, NY, United States
| | - Maria V. Bederoff
- Department of Molecular Pathobiology, New York University College of Dentistry, New York, NY, United States
| | - Rebeca Vasconcelos
- Department of Molecular Pathobiology, New York University College of Dentistry, New York, NY, United States
| | - Sakshi Sapru
- Department of Molecular Pathobiology, New York University College of Dentistry, New York, NY, United States
| | - Bidisha Paul
- Department of Molecular Pathobiology, New York University College of Dentistry, New York, NY, United States
| | - Erica Queiroz
- Department of Molecular Pathobiology, New York University College of Dentistry, New York, NY, United States
| | - Shreya Makwana
- Department of Molecular Pathobiology, New York University College of Dentistry, New York, NY, United States
| | - Julia Solarewicz
- Department of Molecular Pathobiology, New York University College of Dentistry, New York, NY, United States
| | - Yuqi Guo
- Department of Molecular Pathobiology, New York University College of Dentistry, New York, NY, United States
| | - Deanna Aguallo
- Department of Molecular Pathobiology, New York University College of Dentistry, New York, NY, United States
| | - Claudia Gomez
- Department of Molecular Pathobiology, New York University College of Dentistry, New York, NY, United States
| | - Donna Shelly
- Department of Medicine, New York University School of Medicine, New York, NY, United States
| | - Yindalon Aphinyanaphongs
- Department of Medicine, New York University School of Medicine, New York, NY, United States
- Department of Population Health, New York University School of Medicine, New York, NY, United States
| | - Terry Gordon
- Department of Environmental Medicine, New York University School of Medicine, New York, NY, United States
| | - Patricia M. Corby
- Department of Oral Medicine, School of Dental Medicine, University of Pennsylvania, Philadelphia, PA, United States
| | - Angela R. Kamer
- Department of Periodontology and Implant Dentistry, New York University College of Dentistry, New York, NY, United States
| | - Xin Li
- Department of Molecular Pathobiology, New York University College of Dentistry, New York, NY, United States
| | - Deepak Saxena
- Department of Molecular Pathobiology, New York University College of Dentistry, New York, NY, United States
| |
Collapse
|
10
|
Miller MO, Kashyap PC, Becker SL, Thomas RM, Hodin RA, Miller G, Hundeyin M, Pushalkar S, Cohen D, Saxena D, Shogan BD, Morris-Stiff GJ. SSAT State-of-the-Art Conference: Advancements in the Microbiome. J Gastrointest Surg 2021; 25:1885-1895. [PMID: 32989690 DOI: 10.1007/s11605-020-04551-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
The microbiome plays a major role in human physiology by influencing obesity, inducing inflammation, and impacting cancer therapies. During the 60th Annual Meeting of the Society of the Alimentary Tract (SSAT) at the State-of-the-Art Conference, experts in the field discussed the influence of the microbiome. This paper is a summary of the influence of the microbiome on obesity, inflammatory bowel disease, pancreatic cancer, cancer therapies, and gastrointestinal optimization. This review shows how the microbiome plays an important role in the development of diseases and surgical complications. Future studies are needed in targeting the gut microbiome to develop individualized therapies.
Collapse
Affiliation(s)
- Miquell O Miller
- Department of General Surgery, Stanford University, 300 Pasteur Dr, Stanford, CA, 94305, USA.
| | - Purna C Kashyap
- Department of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN, 55905, USA
| | - Sarah L Becker
- Department of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN, 55905, USA
| | - Ryan M Thomas
- Departments of Surgery, Molecular Genetics and Microbiology, University of Florida, Gainesville, FL, 32610, USA
| | - Richard A Hodin
- Department of Surgery, Massachusetts General Hospital, Boston, MA, 02114, USA
| | - George Miller
- Departments of Surgery and Cell Biology, New York University School of Medicine, New York, NY, 10016, USA
| | - Mautin Hundeyin
- Departments of Surgery and Cell Biology, New York University School of Medicine, New York, NY, 10016, USA
| | - Smruti Pushalkar
- Department of Medicine, New York University School of Medicine, New York, NY, 10016, USA
| | - Deirdre Cohen
- Department of Basic Science and Craniofacial Biology, New York University College of Dentistry, New York, NY, 10010, USA
| | - Deepak Saxena
- Department of Basic Science and Craniofacial Biology, New York University College of Dentistry, New York, NY, 10010, USA
| | - Benjamin D Shogan
- Department of Surgery, University of Chicago, Chicago, IL, 60637, USA
| | | |
Collapse
|
11
|
Kamer AR, Pushalkar S, Gulivindala D, Butler T, Li Y, Annam KRC, Glodzik L, Ballman KV, Corby PM, Blennow K, Zetterberg H, Saxena D, de Leon MJ. Periodontal dysbiosis associates with reduced CSF Aβ42 in cognitively normal elderly. Alzheimers Dement (Amst) 2021; 13:e12172. [PMID: 33869725 PMCID: PMC8040436 DOI: 10.1002/dad2.12172] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Revised: 02/07/2021] [Accepted: 02/08/2021] [Indexed: 12/30/2022]
Abstract
INTRODUCTION Periodontal disease is a chronic, inflammatory bacterial dysbiosis that is associated with both Alzheimer's disease (AD) and Down syndrome. METHODS A total of 48 elderly cognitively normal subjects were evaluated for differences in subgingival periodontal bacteria (assayed by 16S rRNA sequencing) between cerebrospinal fluid (CSF) biomarker groups of amyloid and neurofibrillary pathology. A dysbiotic index (DI) was defined at the genus level as the abundance ratio of known periodontal bacteria to healthy bacteria. Analysis of variance/analysis of covariance (ANOVA/ANCOVA), linear discriminant effect-size analyses (LEfSe) were used to determine the bacterial genera and species differences between the CSF biomarker groups. RESULTS At genera and species levels, higher subgingival periodontal dysbiosis was associated with reduced CSF amyloid beta (Aβ)42 (P = 0.02 and 0.01) but not with P-tau. DISCUSSION We show a selective relationship between periodontal disease bacterial dysbiosis and CSF biomarkers of amyloidosis, but not for tau. Further modeling is needed to establish the direct link between oral bacteria and Aβ.
Collapse
Affiliation(s)
- Angela R. Kamer
- Department of Periodontology and Implant DentistryCollege of DentistryNew York UniversityNew YorkUSA
| | - Smruti Pushalkar
- Department of Molecular PathobiologyCollege of DentistryNew York UniversityNew YorkUSA
| | - Deepthi Gulivindala
- Department of Periodontology and Implant DentistryCollege of DentistryNew York UniversityNew YorkUSA
| | - Tracy Butler
- Department of RadiologyWeill Medical CenterBrain Health Imaging Institute Cornell UniversityNew YorkUSA
| | - Yi Li
- Department of RadiologyWeill Medical CenterBrain Health Imaging Institute Cornell UniversityNew YorkUSA
| | | | - Lidia Glodzik
- Department of RadiologyWeill Medical CenterBrain Health Imaging Institute Cornell UniversityNew YorkUSA
| | - Karla V. Ballman
- Division of BiostatisticsDepartment of Population Health SciencesWeill Medical CenterWeill Cornell MedicineNew YorkUSA
| | - Patricia M. Corby
- Department of Oral MedicineSchool of Dental MedicineUniversity of PennsylvaniaPhiladelphiaPennsylvaniaUSA
| | - Kaj Blennow
- Department of Psychiatry and NeurochemistryInstitute of Neuroscience and Physiologythe Sahlgrenska Academy at the University of GothenburgMölndalSweden
- Clinical Neurochemistry LaboratorySahlgrenska University HospitalMölndalSweden
| | - Henrik Zetterberg
- Department of Psychiatry and NeurochemistryInstitute of Neuroscience and Physiologythe Sahlgrenska Academy at the University of GothenburgMölndalSweden
- Clinical Neurochemistry LaboratorySahlgrenska University HospitalMölndalSweden
- Department of Neurodegenerative DiseaseUCL Institute of NeurologyLondonUK
- UK Dementia Research Institute at UCLLondonUK
| | - Deepak Saxena
- Department of Molecular PathobiologyCollege of DentistryNew York UniversityNew YorkUSA
| | - Mony J. de Leon
- Department of RadiologyWeill Medical CenterBrain Health Imaging Institute Cornell UniversityNew YorkUSA
| |
Collapse
|
12
|
Aykut B, Chen R, Kim JI, Wu D, Shadaloey SAA, Abengozar R, Preiss P, Saxena A, Pushalkar S, Leinwand J, Diskin B, Wang W, Werba G, Berman M, Lee SKB, Khodadadi-Jamayran A, Saxena D, Coetzee WA, Miller G. Targeting Piezo1 unleashes innate immunity against cancer and infectious disease. Sci Immunol 2020; 5:5/50/eabb5168. [PMID: 32826342 DOI: 10.1126/sciimmunol.abb5168] [Citation(s) in RCA: 61] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2020] [Accepted: 07/31/2020] [Indexed: 12/16/2022]
Abstract
Piezo1 is a mechanosensitive ion channel that has gained recognition for its role in regulating diverse physiological processes. However, the influence of Piezo1 in inflammatory disease, including infection and tumor immunity, is not well studied. We postulated that Piezo1 links physical forces to immune regulation in myeloid cells. We found signal transduction via Piezo1 in myeloid cells and established this channel as the primary sensor of mechanical stress in these cells. Global inhibition of Piezo1 with a peptide inhibitor was protective against both cancer and septic shock and resulted in a diminution in suppressive myeloid cells. Moreover, deletion of Piezo1 in myeloid cells protected against cancer and increased survival in polymicrobial sepsis. Mechanistically, we show that mechanical stimulation promotes Piezo1-dependent myeloid cell expansion by suppressing the retinoblastoma gene Rb1 We further show that Piezo1-mediated silencing of Rb1 is regulated via up-regulation of histone deacetylase 2. Collectively, our work uncovers Piezo1 as a targetable immune checkpoint that drives immunosuppressive myelopoiesis in cancer and infectious disease.
Collapse
Affiliation(s)
- Berk Aykut
- S. Arthur Localio Laboratory, Department of Surgery, New York University School of Medicine, New York, NY 10016, USA
| | - Ruonan Chen
- S. Arthur Localio Laboratory, Department of Surgery, New York University School of Medicine, New York, NY 10016, USA
| | - Jacqueline I Kim
- S. Arthur Localio Laboratory, Department of Surgery, New York University School of Medicine, New York, NY 10016, USA
| | - Dongling Wu
- S. Arthur Localio Laboratory, Department of Surgery, New York University School of Medicine, New York, NY 10016, USA
| | - Sorin A A Shadaloey
- S. Arthur Localio Laboratory, Department of Surgery, New York University School of Medicine, New York, NY 10016, USA
| | - Raquel Abengozar
- S. Arthur Localio Laboratory, Department of Surgery, New York University School of Medicine, New York, NY 10016, USA
| | - Pamela Preiss
- S. Arthur Localio Laboratory, Department of Surgery, New York University School of Medicine, New York, NY 10016, USA
| | - Anjana Saxena
- Biology Department, Brooklyn College, New York, NY 11210, USA.,Biology/Biochemistry Programs, Graduate Center (CUNY), New York, NY 10016, USA
| | - Smruti Pushalkar
- Department of Basic Science and Craniofacial Biology, NYU College of Dentistry, New York, NY 10010, USA
| | - Joshua Leinwand
- S. Arthur Localio Laboratory, Department of Surgery, New York University School of Medicine, New York, NY 10016, USA
| | - Brian Diskin
- S. Arthur Localio Laboratory, Department of Surgery, New York University School of Medicine, New York, NY 10016, USA
| | - Wei Wang
- S. Arthur Localio Laboratory, Department of Surgery, New York University School of Medicine, New York, NY 10016, USA
| | - Gregor Werba
- S. Arthur Localio Laboratory, Department of Surgery, New York University School of Medicine, New York, NY 10016, USA
| | - Matthew Berman
- S. Arthur Localio Laboratory, Department of Surgery, New York University School of Medicine, New York, NY 10016, USA
| | - Steve Ki Buom Lee
- S. Arthur Localio Laboratory, Department of Surgery, New York University School of Medicine, New York, NY 10016, USA
| | | | - Deepak Saxena
- Department of Basic Science and Craniofacial Biology, NYU College of Dentistry, New York, NY 10010, USA.,Department of Microbiology and Immunology, New York University School of Medicine, New York, NY 10016, USA
| | - William A Coetzee
- Department of Pediatrics, New York University School of Medicine, New York, NY 10016, USA.,Department of Neuroscience and Physiology, New York University School of Medicine, New York, NY 10016, USA.,Department of Biochemistry and Molecular Pharmacology, New York University School of Medicine, New York, NY 10016, USA
| | - George Miller
- S. Arthur Localio Laboratory, Department of Surgery, New York University School of Medicine, New York, NY 10016, USA. .,Department of Cell Biology, New York University School of Medicine, New York, NY 10016, USA
| |
Collapse
|
13
|
Sierra MA, Li Q, Pushalkar S, Paul B, Sandoval TA, Kamer AR, Corby P, Guo Y, Ruff RR, Alekseyenko AV, Li X, Saxena D. The Influences of Bioinformatics Tools and Reference Databases in Analyzing the Human Oral Microbial Community. Genes (Basel) 2020; 11:genes11080878. [PMID: 32756341 PMCID: PMC7465726 DOI: 10.3390/genes11080878] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2020] [Revised: 07/11/2020] [Accepted: 07/29/2020] [Indexed: 12/20/2022] Open
Abstract
There is currently no criterion to select appropriate bioinformatics tools and reference databases for analysis of 16S rRNA amplicon data in the human oral microbiome. Our study aims to determine the influence of multiple tools and reference databases on α-diversity measurements and β-diversity comparisons analyzing the human oral microbiome. We compared the results of taxonomical classification by Greengenes, the Human Oral Microbiome Database (HOMD), National Center for Biotechnology Information (NCBI) 16S, SILVA, and the Ribosomal Database Project (RDP) using Quantitative Insights Into Microbial Ecology (QIIME) and the Divisive Amplicon Denoising Algorithm (DADA2). There were 15 phyla present in all of the analyses, four phyla exclusive to certain databases, and different numbers of genera were identified in each database. Common genera found in the oral microbiome, such as Veillonella, Rothia, and Prevotella, are annotated by all databases; however, less common genera, such as Bulleidia and Paludibacter, are only annotated by large databases, such as Greengenes. Our results indicate that using different reference databases in 16S rRNA amplicon data analysis could lead to different taxonomic compositions, especially at genus level. There are a variety of databases available, but there are no defined criteria for data curation and validation of annotations, which can affect the accuracy and reproducibility of results, making it difficult to compare data across studies.
Collapse
Affiliation(s)
- Maria A. Sierra
- Department of Basic Science, New York University College of Dentistry, New York, NY 10010, USA; (M.A.S.); (Q.L.); (S.P.); (B.P.); (A.R.K.); (P.C.); (Y.G.); (X.L.)
| | - Qianhao Li
- Department of Basic Science, New York University College of Dentistry, New York, NY 10010, USA; (M.A.S.); (Q.L.); (S.P.); (B.P.); (A.R.K.); (P.C.); (Y.G.); (X.L.)
| | - Smruti Pushalkar
- Department of Basic Science, New York University College of Dentistry, New York, NY 10010, USA; (M.A.S.); (Q.L.); (S.P.); (B.P.); (A.R.K.); (P.C.); (Y.G.); (X.L.)
| | - Bidisha Paul
- Department of Basic Science, New York University College of Dentistry, New York, NY 10010, USA; (M.A.S.); (Q.L.); (S.P.); (B.P.); (A.R.K.); (P.C.); (Y.G.); (X.L.)
| | - Tito A. Sandoval
- Department of Obstetrics and Gynecology, Weill Cornell Medicine, New York, NY 10065, USA;
| | - Angela R. Kamer
- Department of Basic Science, New York University College of Dentistry, New York, NY 10010, USA; (M.A.S.); (Q.L.); (S.P.); (B.P.); (A.R.K.); (P.C.); (Y.G.); (X.L.)
| | - Patricia Corby
- Department of Basic Science, New York University College of Dentistry, New York, NY 10010, USA; (M.A.S.); (Q.L.); (S.P.); (B.P.); (A.R.K.); (P.C.); (Y.G.); (X.L.)
| | - Yuqi Guo
- Department of Basic Science, New York University College of Dentistry, New York, NY 10010, USA; (M.A.S.); (Q.L.); (S.P.); (B.P.); (A.R.K.); (P.C.); (Y.G.); (X.L.)
| | - Ryan Richard Ruff
- Department of Epidemiology & Health Promotion, New York University College of Dentistry, New York, NY 10010, USA;
| | - Alexander V. Alekseyenko
- The Biomedical Informatics Center, Program for Human Microbiome Research, Department of Public Health Sciences, Department of Oral Health Sciences, Department of Healthcare Leadership and Management, Medical University of South Carolina, Charleston, SC 29425, USA;
| | - Xin Li
- Department of Basic Science, New York University College of Dentistry, New York, NY 10010, USA; (M.A.S.); (Q.L.); (S.P.); (B.P.); (A.R.K.); (P.C.); (Y.G.); (X.L.)
| | - Deepak Saxena
- Department of Basic Science, New York University College of Dentistry, New York, NY 10010, USA; (M.A.S.); (Q.L.); (S.P.); (B.P.); (A.R.K.); (P.C.); (Y.G.); (X.L.)
- S. Arthur Localio Laboratory, Departments of Surgery New York University School of Medicine, New York, NY 10016, USA
- Correspondence: ; Tel.: +1-212-9989256
| |
Collapse
|
14
|
Pushalkar S, Paul B, Li Q, Yang J, Vasconcelos R, Makwana S, González JM, Shah S, Xie C, Janal MN, Queiroz E, Bederoff M, Leinwand J, Solarewicz J, Xu F, Aboseria E, Guo Y, Aguallo D, Gomez C, Kamer A, Shelley D, Aphinyanaphongs Y, Barber C, Gordon T, Corby P, Li X, Saxena D. Electronic Cigarette Aerosol Modulates the Oral Microbiome and Increases Risk of Infection. iScience 2020; 23:100884. [PMID: 32105635 PMCID: PMC7113564 DOI: 10.1016/j.isci.2020.100884] [Citation(s) in RCA: 59] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Revised: 01/09/2020] [Accepted: 01/29/2020] [Indexed: 12/20/2022] Open
Abstract
The trend of e-cigarette use among teens is ever increasing. Here we show the dysbiotic oral microbial ecology in e-cigarette users influencing the local host immune environment compared with non-smoker controls and cigarette smokers. Using 16S rRNA high-throughput sequencing, we evaluated 119 human participants, 40 in each of the three cohorts, and found significantly altered beta-diversity in e-cigarette users (p = 0.006) when compared with never smokers or tobacco cigarette smokers. The abundance of Porphyromonas and Veillonella (p = 0.008) was higher among vapers. Interleukin (IL)-6 and IL-1β were highly elevated in e-cigarette users when compared with non-users. Epithelial cell-exposed e-cigarette aerosols were more susceptible for infection. In vitro infection model of premalignant Leuk-1 and malignant cell lines exposed to e-cigarette aerosol and challenged by Porphyromonas gingivalis and Fusobacterium nucleatum resulted in elevated inflammatory response. Our findings for the first time demonstrate that e-cigarette users are more prone to infection.
Collapse
Affiliation(s)
- Smruti Pushalkar
- Department of Basic Science and Craniofacial Biology, New York University College of Dentistry, 345 East 24(th) Street, Room 921B, New York, NY 10010, USA
| | - Bidisha Paul
- Department of Basic Science and Craniofacial Biology, New York University College of Dentistry, 345 East 24(th) Street, Room 921B, New York, NY 10010, USA
| | - Qianhao Li
- Department of Basic Science and Craniofacial Biology, New York University College of Dentistry, 345 East 24(th) Street, Room 921B, New York, NY 10010, USA
| | - Jian Yang
- Department of Basic Science and Craniofacial Biology, New York University College of Dentistry, 345 East 24(th) Street, Room 921B, New York, NY 10010, USA
| | - Rebeca Vasconcelos
- Department of Basic Science and Craniofacial Biology, New York University College of Dentistry, 345 East 24(th) Street, Room 921B, New York, NY 10010, USA
| | - Shreya Makwana
- Department of Basic Science and Craniofacial Biology, New York University College of Dentistry, 345 East 24(th) Street, Room 921B, New York, NY 10010, USA
| | - Juan Muñoz González
- Department of Basic Science and Craniofacial Biology, New York University College of Dentistry, 345 East 24(th) Street, Room 921B, New York, NY 10010, USA
| | - Shivm Shah
- Department of Basic Science and Craniofacial Biology, New York University College of Dentistry, 345 East 24(th) Street, Room 921B, New York, NY 10010, USA
| | - Chengzhi Xie
- Department of Basic Science and Craniofacial Biology, New York University College of Dentistry, 345 East 24(th) Street, Room 921B, New York, NY 10010, USA
| | - Malvin N Janal
- Department of Epidemiology and Health Promotion, New York University College of Dentistry, New York, NY 10010, USA
| | - Erica Queiroz
- Department of Basic Science and Craniofacial Biology, New York University College of Dentistry, 345 East 24(th) Street, Room 921B, New York, NY 10010, USA
| | - Maria Bederoff
- Department of Basic Science and Craniofacial Biology, New York University College of Dentistry, 345 East 24(th) Street, Room 921B, New York, NY 10010, USA
| | - Joshua Leinwand
- S. Arthur Localio Laboratory, Department of Surgery, New York University School of Medicine, New York, NY 10016, USA
| | - Julia Solarewicz
- Department of Basic Science and Craniofacial Biology, New York University College of Dentistry, 345 East 24(th) Street, Room 921B, New York, NY 10010, USA
| | - Fangxi Xu
- Department of Basic Science and Craniofacial Biology, New York University College of Dentistry, 345 East 24(th) Street, Room 921B, New York, NY 10010, USA
| | - Eman Aboseria
- Department of Basic Science and Craniofacial Biology, New York University College of Dentistry, 345 East 24(th) Street, Room 921B, New York, NY 10010, USA
| | - Yuqi Guo
- Department of Basic Science and Craniofacial Biology, New York University College of Dentistry, 345 East 24(th) Street, Room 921B, New York, NY 10010, USA
| | - Deanna Aguallo
- Department of Basic Science and Craniofacial Biology, New York University College of Dentistry, 345 East 24(th) Street, Room 921B, New York, NY 10010, USA
| | - Claudia Gomez
- Department of Basic Science and Craniofacial Biology, New York University College of Dentistry, 345 East 24(th) Street, Room 921B, New York, NY 10010, USA
| | - Angela Kamer
- Department of Basic Science and Craniofacial Biology, New York University College of Dentistry, 345 East 24(th) Street, Room 921B, New York, NY 10010, USA
| | - Donna Shelley
- Department of Public Health Policy Analysis Management, New York University School of Global Public Health, New York, NY 10012, USA
| | - Yindalon Aphinyanaphongs
- Department of Population Health, New York University School of Medicine, New York, NY 10016, USA; Department of Medicine, New York University School of Medicine, New York, NY 10016, USA
| | - Cheryl Barber
- Department of Basic Science and Craniofacial Biology, New York University College of Dentistry, 345 East 24(th) Street, Room 921B, New York, NY 10010, USA
| | - Terry Gordon
- Department of Environmental Medicine, New York University School of Medicine, New York, NY 10016, USA
| | - Patricia Corby
- Department of Oral Medicine, University of Pennsylvania, School of Dental Medicine, Philadelphia, PA 19104, USA
| | - Xin Li
- Department of Basic Science and Craniofacial Biology, New York University College of Dentistry, 345 East 24(th) Street, Room 921B, New York, NY 10010, USA; Basic Science and Craniofacial Biology, Dental Center, 421 First Avenue, Room 901D, New York, NY, USA.
| | - Deepak Saxena
- Department of Basic Science and Craniofacial Biology, New York University College of Dentistry, 345 East 24(th) Street, Room 921B, New York, NY 10010, USA.
| |
Collapse
|
15
|
Hundeyin M, Kurz E, Mishra A, Rossi JAK, Liudahl SM, Leis KR, Mehrotra H, Kim M, Torres LE, Ogunsakin A, Link J, Sears RC, Sivagnanam S, Goecks J, Islam KMS, Dolgalev I, Savadkar S, Wang W, Aykut B, Leinwand J, Diskin B, Adam S, Israr M, Gelas M, Lish J, Chin K, Farooq MS, Wadowski B, Wu J, Shah S, Adeegbe DO, Pushalkar S, Vasudevaraja V, Saxena D, Wong KK, Coussens LM, Miller G. Innate αβ T Cells Mediate Antitumor Immunity by Orchestrating Immunogenic Macrophage Programming. Cancer Discov 2019; 9:1288-1305. [PMID: 31266770 DOI: 10.1158/2159-8290.cd-19-0161] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2019] [Revised: 05/14/2019] [Accepted: 06/27/2019] [Indexed: 12/16/2022]
Abstract
Unconventional T-lymphocyte populations are emerging as important regulators of tumor immunity. Despite this, the role of TCRαβ+CD4-CD8-NK1.1- innate αβ T cells (iαβT) in pancreatic ductal adenocarcinoma (PDA) has not been explored. We found that iαβTs represent ∼10% of T lymphocytes infiltrating PDA in mice and humans. Intratumoral iαβTs express a distinct T-cell receptor repertoire and profoundly immunogenic phenotype compared with their peripheral counterparts and conventional lymphocytes. iαβTs comprised ∼75% of the total intratumoral IL17+ cells. Moreover, iαβT-cell adoptive transfer is protective in both murine models of PDA and human organotypic systems. We show that iαβT cells induce a CCR5-dependent immunogenic macrophage reprogramming, thereby enabling marked CD4+ and CD8+ T-cell expansion/activation and tumor protection. Collectively, iαβTs govern fundamental intratumoral cross-talk between innate and adaptive immune populations and are attractive therapeutic targets. SIGNIFICANCE: We found that iαβTs are a profoundly activated T-cell subset in PDA that slow tumor growth in murine and human models of disease. iαβTs induce a CCR5-dependent immunogenic tumor-associated macrophage program, T-cell activation and expansion, and should be considered as novel targets for immunotherapy.See related commentary by Banerjee et al., p. 1164.This article is highlighted in the In This Issue feature, p. 1143.
Collapse
Affiliation(s)
- Mautin Hundeyin
- S.A. Localio Laboratory, Department of Surgery, New York University School of Medicine, New York, New York
| | - Emma Kurz
- S.A. Localio Laboratory, Department of Surgery, New York University School of Medicine, New York, New York
| | - Ankita Mishra
- S.A. Localio Laboratory, Department of Surgery, New York University School of Medicine, New York, New York
| | - Juan Andres Kochen Rossi
- S.A. Localio Laboratory, Department of Surgery, New York University School of Medicine, New York, New York
| | - Shannon M Liudahl
- Department of Cell, Developmental and Cancer Biology, Oregon Health and Science University, Portland, Oregon
| | - Kenna R Leis
- Department of Cell, Developmental and Cancer Biology, Oregon Health and Science University, Portland, Oregon
| | - Harshita Mehrotra
- S.A. Localio Laboratory, Department of Surgery, New York University School of Medicine, New York, New York
| | - Mirhee Kim
- S.A. Localio Laboratory, Department of Surgery, New York University School of Medicine, New York, New York
| | - Luisana E Torres
- S.A. Localio Laboratory, Department of Surgery, New York University School of Medicine, New York, New York
| | - Adesola Ogunsakin
- S.A. Localio Laboratory, Department of Surgery, New York University School of Medicine, New York, New York
| | - Jason Link
- Department of Molecular and Medical Genetics, Oregon Health and Science University, Portland, Oregon.,Brenden-Colson Center for Pancreatic Care, Oregon Health and Science University, Portland, Oregon
| | - Rosalie C Sears
- Department of Molecular and Medical Genetics, Oregon Health and Science University, Portland, Oregon.,Brenden-Colson Center for Pancreatic Care, Oregon Health and Science University, Portland, Oregon.,Knight Cancer Institute, Oregon Health and Science University, Portland, Oregon
| | - Shamilene Sivagnanam
- Computational Biology Program, Oregon Health and Science University, Portland, Oregon
| | - Jeremy Goecks
- Knight Cancer Institute, Oregon Health and Science University, Portland, Oregon.,Computational Biology Program, Oregon Health and Science University, Portland, Oregon
| | - K M Sadeq Islam
- S.A. Localio Laboratory, Department of Surgery, New York University School of Medicine, New York, New York
| | - Igor Dolgalev
- Department of Pathology, New York University School of Medicine, New York, New York
| | - Shivraj Savadkar
- S.A. Localio Laboratory, Department of Surgery, New York University School of Medicine, New York, New York
| | - Wei Wang
- S.A. Localio Laboratory, Department of Surgery, New York University School of Medicine, New York, New York
| | - Berk Aykut
- S.A. Localio Laboratory, Department of Surgery, New York University School of Medicine, New York, New York
| | - Joshua Leinwand
- S.A. Localio Laboratory, Department of Surgery, New York University School of Medicine, New York, New York
| | - Brian Diskin
- S.A. Localio Laboratory, Department of Surgery, New York University School of Medicine, New York, New York
| | - Salma Adam
- S.A. Localio Laboratory, Department of Surgery, New York University School of Medicine, New York, New York
| | - Muhammad Israr
- S.A. Localio Laboratory, Department of Surgery, New York University School of Medicine, New York, New York
| | - Maeliss Gelas
- S.A. Localio Laboratory, Department of Surgery, New York University School of Medicine, New York, New York
| | - Justin Lish
- S.A. Localio Laboratory, Department of Surgery, New York University School of Medicine, New York, New York
| | - Kathryn Chin
- S.A. Localio Laboratory, Department of Surgery, New York University School of Medicine, New York, New York
| | - Mohammad Saad Farooq
- S.A. Localio Laboratory, Department of Surgery, New York University School of Medicine, New York, New York
| | - Benjamin Wadowski
- S.A. Localio Laboratory, Department of Surgery, New York University School of Medicine, New York, New York
| | - Jingjing Wu
- S.A. Localio Laboratory, Department of Surgery, New York University School of Medicine, New York, New York
| | - Suhagi Shah
- Department of Medicine, New York University School of Medicine, New York, New York
| | - Dennis O Adeegbe
- Department of Medicine, New York University School of Medicine, New York, New York
| | - Smruti Pushalkar
- Department of Basic Science and Craniofacial Biology, New York University College of Dentistry, New York, New York
| | | | - Deepak Saxena
- Department of Basic Science and Craniofacial Biology, New York University College of Dentistry, New York, New York
| | - Kwok-Kin Wong
- Department of Medicine, New York University School of Medicine, New York, New York
| | - Lisa M Coussens
- Department of Cell, Developmental and Cancer Biology, Oregon Health and Science University, Portland, Oregon.,Brenden-Colson Center for Pancreatic Care, Oregon Health and Science University, Portland, Oregon.,Knight Cancer Institute, Oregon Health and Science University, Portland, Oregon
| | - George Miller
- S.A. Localio Laboratory, Department of Surgery, New York University School of Medicine, New York, New York. .,Department of Cell Biology, New York University School of Medicine, New York, New York
| |
Collapse
|
16
|
Carreiro AF, Delben JA, Guedes S, Silveira EJ, Janal MN, Vergani CE, Pushalkar S, Duarte S. Low‐temperature plasma on peri‐implant–related biofilm and gingival tissue. J Periodontol 2018; 90:507-515. [DOI: 10.1002/jper.18-0366] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2018] [Revised: 10/18/2018] [Accepted: 10/22/2018] [Indexed: 12/23/2022]
Affiliation(s)
- Adriana F.P. Carreiro
- Department of DentistryFederal University of Rio Grande do Norte Natal Rio Grande do Norte Brazil
| | - Juliana A. Delben
- Department of DentistryState University of West of Parana Londrina Paraná Brazil
| | - Sarah Guedes
- Post‐Graduate Program in DentistryFederal University of Ceará Fortaleza Ceará Brazil
| | - Ericka J.D. Silveira
- Department of DentistryFederal University of Rio Grande do Norte Natal Rio Grande do Norte Brazil
| | - Malvin N. Janal
- Department of Epidemiology and Health PromotionCollege of DentistryNew York University New York NY USA
| | - Carlos Eduardo Vergani
- Department of Dental Materials and ProsthodonticsAraraquara Dental SchoolUNESP Araraquara São Paulo Brazil
| | - Smruti Pushalkar
- Department of Basic Sciences and Craniofacial BiologyNew York University College of Dentistry New York NY USA
| | - Simone Duarte
- Department of CariologyOperative Dentistry and Dental Public HealthIndiana University School of Dentistry Indianapolis IN USA
| |
Collapse
|
17
|
Pushalkar S, Ghosh G, Xu Q, Liu Y, Ghogare AA, Atem C, Greer A, Saxena D, Lyons AM. Superhydrophobic Photosensitizers: Airborne 1O 2 Killing of an in Vitro Oral Biofilm at the Plastron Interface. ACS Appl Mater Interfaces 2018; 10:25819-25829. [PMID: 29972022 PMCID: PMC6698391 DOI: 10.1021/acsami.8b09439] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Singlet oxygen is a potent agent for the selective killing of a wide range of harmful cells; however, current delivery methods pose significant obstacles to its widespread use as a treatment agent. Limitations include the need for photosensitizer proximity to tissue because of the short (3.5 μs) lifetime of singlet oxygen in contact with water; the strong optical absorption of the photosensitizer, which limits the penetration depth; and hypoxic environments that restrict the concentration of available oxygen. In this article, we describe a novel superhydrophobic singlet oxygen delivery device for the selective inactivation of bacterial biofilms. The device addresses the current limitations by: immobilizing photosensitizer molecules onto inert silica particles; embedding the photosensitizer-containing particles into the plastron (i.e. the fluid-free space within a superhydrophobic surface between the solid substrate and fluid layer); distributing the particles along an optically transparent substrate such that they can be uniformly illuminated; enabling the penetration of oxygen via the contiguous vapor space defined by the plastron; and stabilizing the superhydrophobic state while avoiding the direct contact of the sensitizer to biomaterials. In this way, singlet oxygen generated on the sensitizer-containing particles can diffuse across the plastron and kill bacteria even deep within the hypoxic periodontal pockets. For the first time, we demonstrate complete biofilm inactivation (>5 log killing) of Porphyromonas gingivalis, a bacterium implicated in periodontal disease using the superhydrophobic singlet oxygen delivery device. The biofilms were cultured on hydroxyapatite disks and exposed to active and control surfaces to assess the killing efficiency as monitored by colony counting and confocal microscopy. Two sensitizer particle types, a silicon phthalocyanine sol-gel and a chlorin e6 derivative covalently bound to fluorinated silica, were evaluated; the biofilm killing efficiency was found to correlate with the amount of singlet oxygen detected in separate trapping studies. Finally, we discuss the applications of such devices in the treatment of periodontitis.
Collapse
Affiliation(s)
- Smruti Pushalkar
- Department of Basic Sciences and Craniofacial Biology, New York University College of Dentistry, New York 10010, United States
| | - Goutam Ghosh
- Department of Chemistry, Brooklyn College, City University of New York, Brooklyn, New York 11210, United States
| | - QianFeng Xu
- SingletO2 Therapeutics LLC, 215 W 125 St., 4 Floor, New York, NY 10027, United States
| | - Yang Liu
- Department of Chemistry, College of Staten Island, City University of New York, Staten Island, New York 10314, United States
- Ph.D. Program in Chemistry, The Graduate Center of the City University of New York, 365 Fifth Avenue, New York, New York 10016, United States
| | - Ashwini A. Ghogare
- Department of Chemistry, Brooklyn College, City University of New York, Brooklyn, New York 11210, United States
- Ph.D. Program in Chemistry, The Graduate Center of the City University of New York, 365 Fifth Avenue, New York, New York 10016, United States
| | - Cecilia Atem
- Department of Basic Sciences and Craniofacial Biology, New York University College of Dentistry, New York 10010, United States
| | - Alexander Greer
- Department of Chemistry, Brooklyn College, City University of New York, Brooklyn, New York 11210, United States
- Ph.D. Program in Chemistry, The Graduate Center of the City University of New York, 365 Fifth Avenue, New York, New York 10016, United States
- SingletO2 Therapeutics LLC, 215 W 125 St., 4 Floor, New York, NY 10027, United States
| | - Deepak Saxena
- Department of Basic Sciences and Craniofacial Biology, New York University College of Dentistry, New York 10010, United States
| | - Alan M. Lyons
- Department of Chemistry, College of Staten Island, City University of New York, Staten Island, New York 10314, United States
- Ph.D. Program in Chemistry, The Graduate Center of the City University of New York, 365 Fifth Avenue, New York, New York 10016, United States
- SingletO2 Therapeutics LLC, 215 W 125 St., 4 Floor, New York, NY 10027, United States
| |
Collapse
|
18
|
Pushalkar S, Hundeyin M, Daley D, Zambirinis CP, Kurz E, Mishra A, Mohan N, Aykut B, Usyk M, Torres LE, Werba G, Zhang K, Guo Y, Li Q, Akkad N, Lall S, Wadowski B, Gutierrez J, Kochen Rossi JA, Herzog JW, Diskin B, Torres-Hernandez A, Leinwand J, Wang W, Taunk PS, Savadkar S, Janal M, Saxena A, Li X, Cohen D, Sartor RB, Saxena D, Miller G. The Pancreatic Cancer Microbiome Promotes Oncogenesis by Induction of Innate and Adaptive Immune Suppression. Cancer Discov 2018; 8:403-416. [PMID: 29567829 DOI: 10.1158/2159-8290.cd-17-1134] [Citation(s) in RCA: 741] [Impact Index Per Article: 123.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2017] [Revised: 01/03/2018] [Accepted: 02/07/2018] [Indexed: 12/17/2022]
Abstract
We found that the cancerous pancreas harbors a markedly more abundant microbiome compared with normal pancreas in both mice and humans, and select bacteria are differentially increased in the tumorous pancreas compared with gut. Ablation of the microbiome protects against preinvasive and invasive pancreatic ductal adenocarcinoma (PDA), whereas transfer of bacteria from PDA-bearing hosts, but not controls, reverses tumor protection. Bacterial ablation was associated with immunogenic reprogramming of the PDA tumor microenvironment, including a reduction in myeloid-derived suppressor cells and an increase in M1 macrophage differentiation, promoting TH1 differentiation of CD4+ T cells and CD8+ T-cell activation. Bacterial ablation also enabled efficacy for checkpoint-targeted immunotherapy by upregulating PD-1 expression. Mechanistically, the PDA microbiome generated a tolerogenic immune program by differentially activating select Toll-like receptors in monocytic cells. These data suggest that endogenous microbiota promote the crippling immune-suppression characteristic of PDA and that the microbiome has potential as a therapeutic target in the modulation of disease progression.Significance: We found that a distinct and abundant microbiome drives suppressive monocytic cellular differentiation in pancreatic cancer via selective Toll-like receptor ligation leading to T-cell anergy. Targeting the microbiome protects against oncogenesis, reverses intratumoral immune tolerance, and enables efficacy for checkpoint-based immunotherapy. These data have implications for understanding immune suppression in pancreatic cancer and its reversal in the clinic. Cancer Discov; 8(4); 403-16. ©2018 AACR.See related commentary by Riquelme et al., p. 386This article is highlighted in the In This Issue feature, p. 371.
Collapse
Affiliation(s)
- Smruti Pushalkar
- Department of Basic Science and Craniofacial Biology, New York University College of Dentistry, New York, New York
| | - Mautin Hundeyin
- S. Arthur Localio Laboratory, Department of Surgery, New York University School of Medicine, New York, New York
| | - Donnele Daley
- S. Arthur Localio Laboratory, Department of Surgery, New York University School of Medicine, New York, New York
| | - Constantinos P Zambirinis
- S. Arthur Localio Laboratory, Department of Surgery, New York University School of Medicine, New York, New York
| | - Emma Kurz
- S. Arthur Localio Laboratory, Department of Surgery, New York University School of Medicine, New York, New York
| | - Ankita Mishra
- S. Arthur Localio Laboratory, Department of Surgery, New York University School of Medicine, New York, New York
| | - Navyatha Mohan
- S. Arthur Localio Laboratory, Department of Surgery, New York University School of Medicine, New York, New York
| | - Berk Aykut
- S. Arthur Localio Laboratory, Department of Surgery, New York University School of Medicine, New York, New York
| | - Mykhaylo Usyk
- Department of Basic Science and Craniofacial Biology, New York University College of Dentistry, New York, New York
| | - Luisana E Torres
- S. Arthur Localio Laboratory, Department of Surgery, New York University School of Medicine, New York, New York
| | - Gregor Werba
- S. Arthur Localio Laboratory, Department of Surgery, New York University School of Medicine, New York, New York
| | - Kevin Zhang
- Department of Basic Science and Craniofacial Biology, New York University College of Dentistry, New York, New York
| | - Yuqi Guo
- Department of Basic Science and Craniofacial Biology, New York University College of Dentistry, New York, New York
| | - Qianhao Li
- Department of Basic Science and Craniofacial Biology, New York University College of Dentistry, New York, New York
| | - Neha Akkad
- S. Arthur Localio Laboratory, Department of Surgery, New York University School of Medicine, New York, New York
| | - Sarah Lall
- S. Arthur Localio Laboratory, Department of Surgery, New York University School of Medicine, New York, New York
| | - Benjamin Wadowski
- S. Arthur Localio Laboratory, Department of Surgery, New York University School of Medicine, New York, New York
| | - Johana Gutierrez
- S. Arthur Localio Laboratory, Department of Surgery, New York University School of Medicine, New York, New York
| | - Juan Andres Kochen Rossi
- S. Arthur Localio Laboratory, Department of Surgery, New York University School of Medicine, New York, New York
| | - Jeremy W Herzog
- National Gnotobiotic Rodent Research Center, University of North Carolina, Chapel Hill, North Carolina
| | - Brian Diskin
- S. Arthur Localio Laboratory, Department of Surgery, New York University School of Medicine, New York, New York
| | - Alejandro Torres-Hernandez
- S. Arthur Localio Laboratory, Department of Surgery, New York University School of Medicine, New York, New York
| | - Josh Leinwand
- S. Arthur Localio Laboratory, Department of Surgery, New York University School of Medicine, New York, New York
| | - Wei Wang
- S. Arthur Localio Laboratory, Department of Surgery, New York University School of Medicine, New York, New York
| | - Pardeep S Taunk
- S. Arthur Localio Laboratory, Department of Surgery, New York University School of Medicine, New York, New York
| | - Shivraj Savadkar
- S. Arthur Localio Laboratory, Department of Surgery, New York University School of Medicine, New York, New York
| | - Malvin Janal
- Department of Basic Science and Craniofacial Biology, New York University College of Dentistry, New York, New York
| | - Anjana Saxena
- Department of Epidemiology and Health Promotion, NYU College of Dentistry, New York, New York
| | - Xin Li
- Department of Basic Science and Craniofacial Biology, New York University College of Dentistry, New York, New York
| | - Deirdre Cohen
- Department of Biology, Brooklyn College and the Graduate Center (CUNY), Brooklyn, New York, New York
| | - R Balfour Sartor
- National Gnotobiotic Rodent Research Center, University of North Carolina, Chapel Hill, North Carolina.,Department of Medicine, New York University School of Medicine, New York, New York
| | - Deepak Saxena
- Department of Basic Science and Craniofacial Biology, New York University College of Dentistry, New York, New York. .,S. Arthur Localio Laboratory, Department of Surgery, New York University School of Medicine, New York, New York
| | - George Miller
- S. Arthur Localio Laboratory, Department of Surgery, New York University School of Medicine, New York, New York. .,Department of Medicine, Microbiology, and Immunology, University of North Carolina, Chapel Hill, North Carolina
| |
Collapse
|
19
|
Saxena D, Li Y, Devota A, Pushalkar S, Abrams W, Barber C, Corby P, Poles M, Phelan J, Malamud D. Modulation of the orodigestive tract microbiome in HIV-infected patients. Oral Dis 2017; 22 Suppl 1:73-8. [PMID: 27109275 DOI: 10.1111/odi.12392] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
More than 37 million people are living with human immunodeficiency virus 1 (HIV), and more people than ever received lifesaving antiretroviral therapy worldwide. HIV-1 infection disrupts the intestinal immune system, leading to microbial translocation and systemic immune activation. We investigated the impact of HIV-1 infection on the GI microbiome and its association with host immune activation. The data indicated that the microbiome was different in HIV-positive and HIV-negative individuals. The initial sequence analysis of saliva indicated that there were major differences in the phyla of Bacteroidetes, Firmicutes, Proteobacteria, and TM7. Phylum Tenericutes was only seen in HIV-positive saliva. At the family level, we identified differences in Streptococcacea, Prevotellaceae, Porphyromonadaceae, and Neisseriaceae, whereas data from various sites in GI tract indicated that Prevotella melaninigencia, Fusobacterium necrophorum, Burkholderia, Bradyrhizobium, Ralstonia, and Eubacterium biforme were predominant but differentially present at various sites. Furthermore, there was a decrease in seven proteins associated with the alternative complement pathway and an increase in 6 proteins associated with the lectin and classical complement pathways. The correlation with a shift in complement pathways suggests that compromised immunity could be responsible for the observed dysbiosis in the GI microbiome.
Collapse
Affiliation(s)
- D Saxena
- Department of Basic Science, New York University College of Dentistry, New York, NY, USA
| | - Y Li
- Department of Basic Science, New York University College of Dentistry, New York, NY, USA
| | - A Devota
- Department of Basic Science, New York University College of Dentistry, New York, NY, USA
| | - S Pushalkar
- Department of Basic Science, New York University College of Dentistry, New York, NY, USA
| | - W Abrams
- Department of Basic Science, New York University College of Dentistry, New York, NY, USA
| | - C Barber
- Department of Basic Science, New York University College of Dentistry, New York, NY, USA
| | - P Corby
- Department of Medicine, New York University School of Medicine, New York, NY, USA
| | - M Poles
- Department of Medicine, New York University School of Medicine, New York, NY, USA
| | - J Phelan
- Department of Basic Science, New York University College of Dentistry, New York, NY, USA
| | - D Malamud
- Department of Basic Science, New York University College of Dentistry, New York, NY, USA.,Department of Medicine, New York University School of Medicine, New York, NY, USA
| |
Collapse
|
20
|
Kulkarni Aranya A, Pushalkar S, Zhao M, LeGeros RZ, Zhang Y, Saxena D. Antibacterial and bioactive coatings on titanium implant surfaces. J Biomed Mater Res A 2017; 105:2218-2227. [PMID: 28380669 DOI: 10.1002/jbm.a.36081] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2017] [Revised: 03/07/2017] [Accepted: 03/29/2017] [Indexed: 01/21/2023]
Abstract
Various surface modifications have been tried for enhancing osseointegration of the dental implants like mechanical and/or chemical treatments and deposition of calcium phosphate coatings. The objective of this research was to develop calcium-phosphate based thin coatings with antibacterial and bioactive properties for potential application in dental implants. Titanium (Ti) discs were immersed in different calcifying solutions: CaP (positive control), F-CaP, Zn-CaP, and FZn-CaP and incubated for 24 h. Negative control was uncoated Ti discs. Coated surfaces were characterized using X-ray diffraction, scanning electron microscopy and energy dispersive spectroscopy. Antibacterial properties were tested using Porphyromonas gingivalis because of its strong association with periodontal and peri-implant infections. Bacterial adhesion and colonization were studied at different timepoints. The coated surfaces had compositional characteristics similar to that of bone mineral and they inhibited the growth, colonization and adherence of P. gingivalis, resulted in reduced thickness of biofilms and bacterial inhibition in the culture medium as compared to the positive and negative controls (p < 0.05). There was no significant difference between the experimental groups (p > 0.05). It has been previously demonstrated that these coatings have excellent in vitro bioactivity (formed carbonate hydroxyapatite when immersed in a simulated body fluid). Such coatings can enhance osseointegration and prevent infection in implants, thereby improving the success rates of implants. © 2017 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 105A: 2218-2227, 2017.
Collapse
Affiliation(s)
- Anupama Kulkarni Aranya
- Department of Biomaterials and Biomimetics, New York University College of Dentistry, 433 First Avenue, New York, New York, 10010
| | - Smruti Pushalkar
- Department of Basic Science and Craniofacial Biology, New York University College of Dentistry, 345 E 24th Street, New York, New York, 10010
| | - Minglei Zhao
- Department of Biomaterials and Biomimetics, New York University College of Dentistry, 433 First Avenue, New York, New York, 10010
| | - Racquel Z LeGeros
- Department of Biomaterials and Biomimetics, New York University College of Dentistry, 433 First Avenue, New York, New York, 10010
| | - Yu Zhang
- Department of Biomaterials and Biomimetics, New York University College of Dentistry, 433 First Avenue, New York, New York, 10010
| | - Deepak Saxena
- Department of Basic Science and Craniofacial Biology, New York University College of Dentistry, 345 E 24th Street, New York, New York, 10010
| |
Collapse
|
21
|
Zambirinis CP, Levie E, Nguy S, Avanzi A, Barilla R, Xu Y, Seifert L, Daley D, Greco SH, Deutsch M, Jonnadula S, Torres-Hernandez A, Tippens D, Pushalkar S, Eisenthal A, Saxena D, Ahn J, Hajdu C, Engle DD, Tuveson D, Miller G. TLR9 ligation in pancreatic stellate cells promotes tumorigenesis. J Biophys Biochem Cytol 2015. [DOI: 10.1083/jcb.2112oia232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
|
22
|
Zambirinis CP, Levie E, Nguy S, Avanzi A, Barilla R, Xu Y, Seifert L, Daley D, Greco SH, Deutsch M, Jonnadula S, Torres-Hernandez A, Tippens D, Pushalkar S, Eisenthal A, Saxena D, Ahn J, Hajdu C, Engle DD, Tuveson D, Miller G. TLR9 ligation in pancreatic stellate cells promotes tumorigenesis. J Exp Med 2015; 212:2077-94. [PMID: 26481685 PMCID: PMC4647258 DOI: 10.1084/jem.20142162] [Citation(s) in RCA: 131] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2014] [Accepted: 09/15/2015] [Indexed: 12/15/2022] Open
Abstract
Zambirinis et al. show that TLR9 stimulation has a protumorigenic effect in pancreatic carcinoma by inducing pancreatic stellate cells to become fibrogenic and produce chemokines that stimulate epithelial cell proliferation. Activation of TLR9 results also in an immune suppressive tumor microenvironment via recruitment of regulatory T cells and induction of myeloid-derived suppressor cell proliferation. Modulation of Toll-like receptor (TLR) signaling can have protective or protumorigenic effects on oncogenesis depending on the cancer subtype and on specific inflammatory elements within the tumor milieu. We found that TLR9 is widely expressed early during the course of pancreatic transformation and that TLR9 ligands are ubiquitous within the tumor microenvironment. TLR9 ligation markedly accelerates oncogenesis, whereas TLR9 deletion is protective. We show that TLR9 activation has distinct effects on the epithelial, inflammatory, and fibrogenic cellular subsets in pancreatic carcinoma and plays a central role in cross talk between these compartments. Specifically, TLR9 activation can induce proinflammatory signaling in transformed epithelial cells, but does not elicit oncogene expression or cancer cell proliferation. Conversely, TLR9 ligation induces pancreatic stellate cells (PSCs) to become fibrogenic and secrete chemokines that promote epithelial cell proliferation. TLR9-activated PSCs mediate their protumorigenic effects on the epithelial compartment via CCL11. Additionally, TLR9 has immune-suppressive effects in the tumor microenvironment (TME) via induction of regulatory T cell recruitment and myeloid-derived suppressor cell proliferation. Collectively, our work shows that TLR9 has protumorigenic effects in pancreatic carcinoma which are distinct from its influence in extrapancreatic malignancies and from the mechanistic effects of other TLRs on pancreatic oncogenesis.
Collapse
Affiliation(s)
| | - Elliot Levie
- Department of Surgery, New York University School of Medicine, New York, NY 10016
| | - Susanna Nguy
- Department of Surgery, New York University School of Medicine, New York, NY 10016
| | - Antonina Avanzi
- Department of Surgery, New York University School of Medicine, New York, NY 10016
| | - Rocky Barilla
- Department of Surgery, New York University School of Medicine, New York, NY 10016
| | - Yijie Xu
- Department of Surgery, New York University School of Medicine, New York, NY 10016
| | - Lena Seifert
- Department of Surgery, New York University School of Medicine, New York, NY 10016
| | - Donnele Daley
- Department of Surgery, New York University School of Medicine, New York, NY 10016
| | - Stephanie H Greco
- Department of Surgery, New York University School of Medicine, New York, NY 10016
| | - Michael Deutsch
- Department of Surgery, New York University School of Medicine, New York, NY 10016
| | - Saikiran Jonnadula
- Department of Surgery, New York University School of Medicine, New York, NY 10016
| | | | - Daniel Tippens
- Department of Surgery, New York University School of Medicine, New York, NY 10016
| | | | - Andrew Eisenthal
- Department of Surgery, New York University School of Medicine, New York, NY 10016
| | - Deepak Saxena
- New York University College of Dentistry, New York, NY 10016
| | - Jiyoung Ahn
- Department of Population Health, New York University School of Medicine, New York, NY 10016
| | - Cristina Hajdu
- Department of Pathology, New York University School of Medicine, New York, NY 10016
| | | | - David Tuveson
- Cold Spring Harbor Laboratories, Cold Spring Harbor, NY 11724
| | - George Miller
- Department of Surgery, New York University School of Medicine, New York, NY 10016 Department of Cell Biology, New York University School of Medicine, New York, NY 10016
| |
Collapse
|
23
|
Pushalkar S, Li X, Kurago Z, Ramanathapuram LV, Matsumura S, Fleisher KE, Glickman R, Yan W, Li Y, Saxena D. Oral microbiota and host innate immune response in bisphosphonate-related osteonecrosis of the jaw. Int J Oral Sci 2014; 6:219-26. [PMID: 25105817 PMCID: PMC5153588 DOI: 10.1038/ijos.2014.46] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/22/2014] [Indexed: 12/31/2022] Open
Abstract
Bacterial biofilms have emerged as potential critical triggers in the pathogenesis of bisphosphonate (BP)-related osteonecrosis of the jaw (ONJ) or BRONJ. BRONJ lesions have shown to be heavily colonized by oral bacteria, most of these difficult to cultivate and presents many clinical challenges. The purpose of this study was to characterize the bacterial diversity in BRONJ lesions and to determine host immune response. We examined tissue specimens from three cohorts (n=30); patients with periodontal disease without a history of BP therapy (Control, n=10), patients with periodontal disease having history of BP therapy but without ONJ (BP, n=5) and patients with BRONJ (BRONJ, n=15). Denaturing gradient gel electrophoresis of polymerase chain reaction (PCR)-amplified 16S rRNA gene fragments revealed less bacterial diversity in BRONJ than BP and Control cohorts. Sequence analysis detected six phyla with predominant affiliation to Firmicutes in BRONJ (71.6%), BP (70.3%) and Control (59.1%). Significant differences (P<0.05) in genera were observed, between Control/BP, Control/BRONJ and BP/BRONJ cohorts. Enzyme-linked immunosorbent assay (ELISA) results indicated that the levels of myeloperoxidase were significantly lower, whereas interleukin-6 and tumor necrosis factor-alpha levels were moderately elevated in BRONJ patients as compared to Controls. PCR array showed significant changes in BRONJ patients with downregulation of host genes, such as nucleotide-binding oligomerization domain containing protein 2, and cathepsin G, the key modulators for antibacterial response and upregulation of secretory leukocyte protease inhibitor, proteinase 3 and conserved helix-loop-helix ubiquitous kinase. The results suggest that colonization of unique bacterial communities coupled with deficient innate immune response is likely to impact the pathogenesis of ONJ.
Collapse
Affiliation(s)
- Smruti Pushalkar
- Department of Basic Science and Craniofacial Biology, New York University College of Dentistry, New York, USA
| | - Xin Li
- Department of Basic Science and Craniofacial Biology, New York University College of Dentistry, New York, USA
| | - Zoya Kurago
- Department of Oral and Maxillofacial Pathology, Radiology and Medicine, New York University College of Dentistry, New York, USA
| | - Lalitha V Ramanathapuram
- Department of Oral and Maxillofacial Pathology, Radiology and Medicine, New York University College of Dentistry, New York, USA
| | - Satoko Matsumura
- Department of Basic Science and Craniofacial Biology, New York University College of Dentistry, New York, USA
| | - Kenneth E Fleisher
- Department of Oral and Maxillofacial Surgery, New York University College of Dentistry, New York, USA
| | - Robert Glickman
- Department of Oral and Maxillofacial Surgery, New York University College of Dentistry, New York, USA
| | - Wenbo Yan
- Department of Biology, Nyack College, New York, USA
| | - Yihong Li
- Department of Basic Science and Craniofacial Biology, New York University College of Dentistry, New York, USA
| | - Deepak Saxena
- Department of Basic Science and Craniofacial Biology, New York University College of Dentistry, New York, USA
| |
Collapse
|
24
|
Abstract
Pancreatic cancer is one of the most lethal cancers worldwide. No effective screening methods exist, and available treatment modalities do not effectively treat the disease. Inflammatory conditions such as pancreatitis represent a well-known risk factor for pancreatic cancer development. Yet only in the past 2 decades has pancreatic cancer been recognized as an inflammation-driven cancer, and the precise mechanisms underlying the pathogenic role of inflammation are beginning to be explored in detail. A substantial amount of preclinical and clinical evidence suggests that bacteria are likely to influence this process by activating immune receptors and perpetuating cancer-associated inflammation. The recent explosion of investigations of the human microbiome have highlighted how perturbations of commensal bacterial populations can promote inflammation and promote disease processes, including carcinogenesis. The elucidation of the interplay between inflammation and microbiome in the context of pancreatic carcinogenesis will provide novel targets for intervention to prevent and treat pancreatic cancer more efficiently. Further studies toward this direction are urgently needed.
Collapse
Affiliation(s)
- Constantinos P. Zambirinis
- S. Arthur Localio Laboratory, Departments of Surgery New York University School of Medicine, New York, NY 10016
| | - Smruti Pushalkar
- Department of Basic Science and Craniofacial Biology, New York University College of Dentistry, New York, NY 10010
| | - Deepak Saxena
- Department of Basic Science and Craniofacial Biology, New York University College of Dentistry, New York, NY 10010
| | - George Miller
- S. Arthur Localio Laboratory, Departments of Surgery New York University School of Medicine, New York, NY 10016
- S. Arthur Localio Laboratory, Departments of Cell Biology New York University School of Medicine, New York, NY 10016
| |
Collapse
|
25
|
Liu L, Pushalkar S, Saxena D, LeGeros RZ, Zhang Y. Antibacterial property expressed by a novel calcium phosphate glass. J Biomed Mater Res B Appl Biomater 2014; 102:423-9. [PMID: 24039127 PMCID: PMC4035028 DOI: 10.1002/jbm.b.33019] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [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: 02/22/2013] [Revised: 06/03/2013] [Accepted: 08/10/2013] [Indexed: 11/07/2022]
Abstract
We have developed a calcium phosphate glass (CPG) doped with Zn(2+) or F(-) or combined Zn(2+) and F(-) ions, which are naturally found in the human body and play a dual role in bone formation and antibacterial activity. Previously, we have demonstrated that this family of CPGs has superior osteoconductive and resorbable properties in vivo. This study aimed to investigate the antibacterial property of CPGs incorporating Zn(2+) and/or F(-) . We used Streptococcus mutans as a model organism because it is one of the major human oral pathogens and an early colonizer, and it has been associated with several oral infections, such as dental caries, periodontitis, and peri-implantitis. CPGs of 0.01 and 0.05 g were incubated with S. mutans for 0, 2, 4, and 6 h. Serial dilutions were plated in triplicate and colony forming units were determined. The antimicrobial effect of CPG incorporating Zn(2+) or F(-) was greater than CPG incorporating both these ions. CPG without doping produced a moderate antimicrobial effect. This family of CPGs, previously shown to promote new bone formation in vivo, is demonstrated to have superior bactericidal properties.
Collapse
Affiliation(s)
- Lela Liu
- Department of Biomaterials and Biomimetics, New York University College of Dentistry, 345 E. 24 Street, New York, NY 10010, USA
| | - Smruti Pushalkar
- Department of Basic Science and Craniofacial Biology, New York University College of Dentistry, 345 E. 24 Street, New York, NY 10010, USA
| | - Deepak Saxena
- Department of Basic Science and Craniofacial Biology, New York University College of Dentistry, 345 E. 24 Street, New York, NY 10010, USA
| | - Racquel Z. LeGeros
- Department of Biomaterials and Biomimetics, New York University College of Dentistry, 345 E. 24 Street, New York, NY 10010, USA
| | - Yu Zhang
- Department of Biomaterials and Biomimetics, New York University College of Dentistry, 345 E. 24 Street, New York, NY 10010, USA
| |
Collapse
|
26
|
Pushalkar S, Ji X, Li Y, Estilo C, Yegnanarayana R, Singh B, Li X, Saxena D. Comparison of oral microbiota in tumor and non-tumor tissues of patients with oral squamous cell carcinoma. BMC Microbiol 2012; 12:144. [PMID: 22817758 PMCID: PMC3507910 DOI: 10.1186/1471-2180-12-144] [Citation(s) in RCA: 215] [Impact Index Per Article: 17.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2012] [Accepted: 07/20/2012] [Indexed: 01/07/2023] Open
Abstract
BACKGROUND Bacterial infections have been linked to malignancies due to their ability to induce chronic inflammation. We investigated the association of oral bacteria in oral squamous cell carcinoma (OSCC/tumor) tissues and compared with adjacent non-tumor mucosa sampled 5 cm distant from the same patient (n = 10). By using culture-independent 16S rRNA approaches, denaturing gradient gel electrophoresis (DGGE) and cloning and sequencing, we assessed the total bacterial diversity in these clinical samples. RESULTS DGGE fingerprints showed variations in the band intensity profiles within non-tumor and tumor tissues of the same patient and among the two groups. The clonal analysis indicated that from a total of 1200 sequences characterized, 80 bacterial species/phylotypes were detected representing six phyla, Firmicutes, Bacteroidetes, Proteobacteria, Fusobacteria, Actinobacteria and uncultivated TM7 in non-tumor and tumor libraries. In combined library, 12 classes, 16 order, 26 families and 40 genera were observed. Bacterial species, Streptococcus sp. oral taxon 058, Peptostreptococcus stomatis, Streptococcus salivarius, Streptococcus gordonii, Gemella haemolysans, Gemella morbillorum, Johnsonella ignava and Streptococcus parasanguinis I were highly associated with tumor site where as Granulicatella adiacens was prevalent at non-tumor site. Streptococcus intermedius was present in 70% of both non-tumor and tumor sites. CONCLUSIONS The underlying changes in the bacterial diversity in the oral mucosal tissues from non-tumor and tumor sites of OSCC subjects indicated a shift in bacterial colonization. These most prevalent or unique bacterial species/phylotypes present in tumor tissues may be associated with OSCC and needs to be further investigated with a larger sample size.
Collapse
Affiliation(s)
- Smruti Pushalkar
- Department of Basic Sciences and Craniofacial Biology, New York University College of Dentistry, 345 E, 24th Street, Room 921B, New York, NY, 10010, USA
| | - Xiaojie Ji
- Department of Basic Sciences and Craniofacial Biology, New York University College of Dentistry, 345 E, 24th Street, Room 921B, New York, NY, 10010, USA
- Department of Chemical and Biological Sciences, Polytechnic Institute of NYU, New York, NY, USA
| | - Yihong Li
- Department of Basic Sciences and Craniofacial Biology, New York University College of Dentistry, 345 E, 24th Street, Room 921B, New York, NY, 10010, USA
| | - Cherry Estilo
- Dental Service, Department of Surgery, Memorial Sloan-Kettering Cancer Center, New York, NY, USA
| | - Ramanathan Yegnanarayana
- Laboratory of Epithelial Cancer Biology, Memorial Sloan-Kettering Cancer Center, New York, NY, USA
| | - Bhuvanesh Singh
- Laboratory of Epithelial Cancer Biology, Memorial Sloan-Kettering Cancer Center, New York, NY, USA
| | - Xin Li
- Department of Basic Sciences and Craniofacial Biology, New York University College of Dentistry, 345 E, 24th Street, Room 921B, New York, NY, 10010, USA
| | - Deepak Saxena
- Department of Basic Sciences and Craniofacial Biology, New York University College of Dentistry, 345 E, 24th Street, Room 921B, New York, NY, 10010, USA
| |
Collapse
|
27
|
Wei X, Pushalkar S, Estilo C, Wong C, Farooki A, Fornier M, Bohle G, Huryn J, Li Y, Doty S, Saxena D. Molecular profiling of oral microbiota in jawbone samples of bisphosphonate-related osteonecrosis of the jaw. Oral Dis 2012; 18:602-12. [PMID: 22443347 PMCID: PMC7167636 DOI: 10.1111/j.1601-0825.2012.01916.x] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Oral Diseases (2012) 18, 602–612 Objective: Infection has been hypothesized as a contributing factor to bisphosphonate (BP)‐related osteonecrosis of the jaw (BRONJ). The objective of this study was to determine the bacterial colonization of jawbone and identify the bacterial phylotypes associated with BRONJ. Materials and methods: Culture‐independent 16S rRNA gene‐based molecular techniques were used to determine and compare the total bacterial diversity in bone samples collected from 12 patients with cancer (six, BRONJ with history of BP; six, controls without BRONJ, no history of BP but have infection). Results: Denaturing gradient gel electrophoresis profile and Dice coefficient displayed a statistically significant clustering of profiles, indicating different bacterial population in BRONJ subjects and control. The top three genera ranked among the BRONJ group were Streptococcus (29%), Eubacterium (9%), and Pseudoramibacter (8%), while in the control group were Parvimonas (17%), Streptococcus (15%), and Fusobacterium (15%). H&E sections of BRONJ bone revealed layers of bacteria along the surfaces and often are packed into the scalloped edges of the bone. Conclusion: This study using limited sample size indicated that the jawbone associated with BRONJ was heavily colonized by specific oral bacteria and there were apparent differences between the microbiota of BRONJ and controls.
Collapse
Affiliation(s)
- X Wei
- New York University College of Dentistry, New York, NY, USA
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
28
|
Abstract
OBJECTIVE Oral infection is considered to play a critical role in the pathogenesis of bisphosphonate-related osteonecrosis of the jaw (BRONJ), and antibiotic therapy has become a mainstay of BRONJ therapy. This study was aimed to investigate the effect of antibiotics on bacterial diversity in BRONJ tissues. MATERIALS AND METHODS The bacterial profile from soft tissues associated with the BRONJ lesion was determined using 16S rRNA-based denaturing gradient gel electrophoresis (DGGE) and sequencing. Twenty BRONJ subjects classified as stage 0-2 were enrolled in this study, and patient groups were divided into an antibiotic cohort (n=10) treated with systemic antibiotic and a non-antibiotic cohort (n=10) with no prior antibiotic therapy. RESULTS The DGGE fingerprints indicated no significant differences in bacterial diversity of BRONJ tissue samples. Patients on antibiotics had higher relative abundance of phylum Firmicutes with bacterial species, Streptococcus intermedius, Lactobacillus gasseri, Mogibacterium timidum, and Solobacterium moorei, whereas patients without antibiotics had greater amounts of Parvimonas micra and Streptococcus anginosus. Thirty percent of bacterial populations were uncultured (yet-to be cultured) phylotypes. CONCLUSION This study using limited sample size indicated that oral antibiotic therapy may have a limited efficacy on the bacterial population associated with BRONJ lesions.
Collapse
Affiliation(s)
- X Ji
- Department of Chemical and Biological Sciences, Polytechnic Institute of New York University, USA
| | | | | | | | | | | |
Collapse
|
29
|
Pushalkar S, Mane SP, Ji X, Li Y, Evans C, Crasta OR, Morse D, Meagher R, Singh A, Saxena D. Microbial diversity in saliva of oral squamous cell carcinoma. ACTA ACUST UNITED AC 2011; 61:269-77. [PMID: 21205002 DOI: 10.1111/j.1574-695x.2010.00773.x] [Citation(s) in RCA: 119] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
In the oral cavity, chronic inflammation has been observed at various stages of oral squamous cell carcinomas (OSCC). Such inflammation could result from persistent mucosal or epithelial cell colonization by microorganisms. There is increasing evidence of the involvement of oral bacteria in inflammation, warranting further studies on the association of bacteria with the progression of OSCC. The objective of this study was to evaluate the diversity and relative abundance of bacteria in the saliva of subjects with OSCC. Using 454 parallel DNA sequencing, ∼58,000 PCR amplicons that span the V4-V5 hypervariable region of rRNAs from five subjects were sequenced. Members of eight phyla (divisions) of bacteria were detected. The majority of classified sequences belonged to the phyla Firmicutes (45%) and Bacteroidetes (25%). Further, 52 different genera containing approximately 860 (16.51%) known species were identified and 1077 (67%) sequences belonging to various uncultured bacteria or unclassified groups. The species diversity estimates obtained with abundance-based coverage estimators and Chao1 were greater than published analyses of other microbial profiles from the oral cavity. Fifteen unique phylotypes were present in all three OSCC subjects.
Collapse
Affiliation(s)
- Smruti Pushalkar
- Department of Basic Science and Craniofacial Biology, New York University College of Dentistry, New York, NY, USA
| | | | | | | | | | | | | | | | | | | |
Collapse
|
30
|
|
31
|
Abstract
The production of beta-glucosidase by Aspergillus terreus was investigated in liquid shake cultures. Enzyme production was maximum on the 7th day of growth (2.18 U/ml) with the initial pH of the medium in the range of 4.0-5.5. Cellulose (Sigmacell Type 100) at 1.0% (wt/vol) gave maximum beta-glucosidase activity among the various soluble and insoluble carbon sources tested. Potassium nitrate was a suitable nitrogen source for enzyme production. Triton X-100 at 0.15% (vol/vol) increased the enzyme levels of A. terreus. The test fungal strain showed an ability to ferment glucose to ethanol.
Collapse
Affiliation(s)
- S Pushalkar
- Department of Microbiology and Biotechnology Centre, Faculty of Science, M.S. University of Baroda, India
| | | | | |
Collapse
|