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Sakunpak A, Sueree L. Thin-layer chromatography–contact bioautography as a tool for bioassay-guided isolation of anti- Streptococcus mutanscompounds from Pinus merkusiiheartwood. JPC-J PLANAR CHROMAT 2018. [DOI: 10.1556/1006.2018.31.5.2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
- Apirak Sakunpak
- Department of Pharmacognosy, College of Pharmacy Rangsit University, Pathum Thani 12000, Thailand
| | - Lukman Sueree
- The Herbal Medicinal Products Research and Development Center (Cooperation between Rangsit University and Harbin Institute of Technology and Heilongjiang University of Chinese Medicine), College of Pharmacy Rangsit University, Pathum Thani 12000, Thailand
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Xie E, Kotha A, Biaco T, Sedani N, Zou J, Stashenko P, Duncan MJ, Campos-Neto A, Cayabyab MJ. Oral Delivery of a Novel Recombinant Streptococcus mitis Vector Elicits Robust Vaccine Antigen-Specific Oral Mucosal and Systemic Antibody Responses and T Cell Tolerance. PLoS One 2015; 10:e0143422. [PMID: 26618634 PMCID: PMC4664415 DOI: 10.1371/journal.pone.0143422] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2015] [Accepted: 11/04/2015] [Indexed: 12/22/2022] Open
Abstract
The pioneer human oral commensal bacterium Streptococcus mitis has unique biologic features that make it an attractive mucosal vaccine or therapeutic delivery vector. S. mitis is safe as a natural persistent colonizer of the mouth, throat and nasopharynx and the oral commensal bacterium is capable of inducing mucosal antibody responses. A recombinant S. mitis (rS. mitis) that stably expresses HIV envelope protein was generated and tested in the germ-free mouse model to evaluate the potential usefulness of this vector as a mucosal vaccine against HIV. Oral vaccination led to the efficient and persistent bacterial colonization of the mouth and the induction of both salivary and systemic antibody responses. Interestingly, persistently colonized animals developed antigen-specific systemic T cell tolerance. Based on these findings we propose the use of rS. mitis vaccine vector for the induction of mucosal antibodies that will prevent the penetration of the mucosa by pathogens such as HIV. Moreover, the first demonstration of rS. mitis having the ability to elicit T cell tolerance suggest the potential use of rS. mitis as an immunotherapeutic vector to treat inflammatory, allergic and autoimmune diseases.
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Affiliation(s)
- Emily Xie
- Global Infectious Disease Research Center and the Department of Immunology and Infectious Diseases, The Forsyth Institute, 245 First Street, Cambridge, Massachusetts, United States of America
| | - Abhiroop Kotha
- Global Infectious Disease Research Center and the Department of Immunology and Infectious Diseases, The Forsyth Institute, 245 First Street, Cambridge, Massachusetts, United States of America
| | - Tracy Biaco
- Global Infectious Disease Research Center and the Department of Immunology and Infectious Diseases, The Forsyth Institute, 245 First Street, Cambridge, Massachusetts, United States of America
| | - Nikita Sedani
- Global Infectious Disease Research Center and the Department of Immunology and Infectious Diseases, The Forsyth Institute, 245 First Street, Cambridge, Massachusetts, United States of America
| | - Jonathan Zou
- Global Infectious Disease Research Center and the Department of Immunology and Infectious Diseases, The Forsyth Institute, 245 First Street, Cambridge, Massachusetts, United States of America
| | - Phillip Stashenko
- Global Infectious Disease Research Center and the Department of Immunology and Infectious Diseases, The Forsyth Institute, 245 First Street, Cambridge, Massachusetts, United States of America
- Department of Oral Medicine, Infection and Immunity, Harvard School of Dental Medicine, Boston, Massachusetts, United States of America
| | - Margaret J. Duncan
- Department of Microbiology, The Forsyth Institute, 245 First Street, Cambridge, Massachusetts, United States of America
| | - Antonio Campos-Neto
- Global Infectious Disease Research Center and the Department of Immunology and Infectious Diseases, The Forsyth Institute, 245 First Street, Cambridge, Massachusetts, United States of America
- Department of Oral Medicine, Infection and Immunity, Harvard School of Dental Medicine, Boston, Massachusetts, United States of America
| | - Mark J. Cayabyab
- Global Infectious Disease Research Center and the Department of Immunology and Infectious Diseases, The Forsyth Institute, 245 First Street, Cambridge, Massachusetts, United States of America
- Department of Oral Medicine, Infection and Immunity, Harvard School of Dental Medicine, Boston, Massachusetts, United States of America
- * E-mail:
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