Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 3 of 3
Full-Text Articles in Medicine and Health Sciences
Mechanism Of Interaction Of Peptide Modified Nanoparticles With Porphyromonas Gingivalis., Ankita Jain
Mechanism Of Interaction Of Peptide Modified Nanoparticles With Porphyromonas Gingivalis., Ankita Jain
Electronic Theses and Dissertations
Studies suggest that P. gingivalis functions as a keystone pathogen and interacts with primary colonizers in the supragingival biofilm such as S. gordonii. This interaction contributes to the initial colonization of the oral cavity by P. gingivalis and thus represents a potential target for therapeutic intervention. We have identified a peptide (BAR) derived from the streptococcal SspB protein that functions to inhibit P. gingivalis adherence to S. gordonii. In addition, we showed that nanoparticles (NPs) functionalized with BAR inhibit this interaction more potently than free soluble peptide, possibly by promoting interaction with P. gingivalis at higher valency than …
Characterization Of Pg1604 (Porz) As An Essential Component Of Type 9 Secretion System In Porphyromonas Gingivalis., Apurva Tadimari Prabhakar
Characterization Of Pg1604 (Porz) As An Essential Component Of Type 9 Secretion System In Porphyromonas Gingivalis., Apurva Tadimari Prabhakar
Electronic Theses and Dissertations
Background: The numerous virulence factors of Porphyromonas gingivalis are essential for the organism to invade host tissues while escaping immune responses [1, 2]. Some of these factors, like major proteases referred to as gingipains, are secreted by a unique secretion system called PerioGate or Type IX Secretion System (T9SS). T9SS consists of a number of membrane and periplasmic proteins, which provide transportation only for proteins that possess a conserved C-terminal domain (CTD). The CTD functions as a specific recognition signal for the T9SS. PG1604 of P. gingivalis W83 is a CTD-containing protein, which has been shown in our initial studies …
Tobacco-Gene Activity Profile In Porphyromonas Gingivalis, Filifactor Alocis And Treponema Denticola., Neelima Chowdary Cherukumalli
Tobacco-Gene Activity Profile In Porphyromonas Gingivalis, Filifactor Alocis And Treponema Denticola., Neelima Chowdary Cherukumalli
Electronic Theses and Dissertations
Smoking is an established risk factor for periodontitis. Prior studies have shown that cigarette smoke extract (CSE) can induce profound phenotypic changes in Porphyromonas gingivalis and alters the virulence of this important periodontal pathogen. We hypothesized that CSE might also alter gene expression in established periodontal pathogens, Porphyromonas gingivalis and Treponema denticola, as well as in the emerging pathogen, Filifactor alocis. Oral bacteria were grown in CSE-conditioned medium (1000 ng/ml nicotine equivalents) or in unconditioned control medium. Total RNA was extracted and CSE-regulated genes were identified by comparison of the mRNA profiles of CSE with control cultures using RNA-Seq …