Results 31 to 40 of about 950 (126)

Phylogenetic diversity in fim and mfa gene clusters between Porphyromonas gingivalis and Porphyromonas gulae, as a potential cause of host specificity

Journal of Oral Microbiology, 2020
Background Periodontopathic bacteria Porphyromonas gingivalis in humans and Porphyromonas gulae in animals are phylogenetically close and commonly have FimA and Mfa1 fimbriae.
Kaori Fujiwara-Takahashi, Takayasu Watanabe, Masahiro Shimogishi, Masaki Shibasaki, Makoto Umeda, Yuichi Izumi, Ichiro Nakagawa   +6 more
doaj   +1 more source

Glucose depletion enables Candida albicans mating independently of the epigenetic white-opaque switch

Nature Communications, 2023
The human fungal pathogen Candida albicans can switch stochastically and heritably between a “white” phase and an “opaque” phase. Opaque cells are the mating-competent form of the species, whereas white cells are thought to be essentially “sterile”. Here,
Guobo Guan, Li Tao, Chao Li, Ming Xu, Ling Liu, Richard J. Bennett, Guanghua Huang   +6 more
doaj   +1 more source

Porphyromonas gingivalis fimbriae

Journal of Oral Microbiology, 2013
Marginal periodontitis is not a homogeneous disease but is rather influenced by an intricate set of host susceptibility differences as well as diversities in virulence among the harbored organisms. It is likely that clonal heterogeneity of subpopulations
Morten Enersen, Kazuhiko Nakano, Atsuo Amano   +2 more
doaj   +1 more source

Tobacco smoke augments Porphyromonas gingivalis-Streptococcus gordonii biofilm formation.

PLoS ONE, 2011
Smoking is responsible for the majority of periodontitis cases in the US and smokers are more susceptible than non-smokers to infection by the periodontal pathogen Porphyromonas gingivalis. P.
Juhi Bagaitkar, Carlo A Daep, Carol K Patel, Diane E Renaud, Donald R Demuth, David A Scott   +5 more
doaj   +1 more source

Structural studies of the five pilin proteins building up the type-V pilus Mfa1 of Porphyromonas gingivalis [PDF]

Acta Crystallographica Section A Foundations and Advances, 2018
Structural studies of the five pilin proteins building up the type-V pilus Mfa1 of Porphyromonas ...
Karina Persson, Michael Hal, Thomas Heidler, Yoshiaki Hasegawa   +3 more
openaire   +1 more source

Porphyromonas gingivalis evasion of autophagy and intracellular killing by human myeloid dendritic cells involves DC-SIGN-TLR2 crosstalk.

PLoS Pathogens, 2015
Signaling via pattern recognition receptors (PRRs) expressed on professional antigen presenting cells, such as dendritic cells (DCs), is crucial to the fate of engulfed microbes.
Ahmed R El-Awady, Brodie Miles, Elizabeth Scisci, Zoya B Kurago, Chithra D Palani, Roger M Arce, Jennifer L Waller, Caroline A Genco, Connie Slocum, Matthew Manning, Patricia V Schoenlein, Christopher W Cutler   +11 more
doaj   +1 more source

Porphyromonas gingivalis Provokes Exosome Secretion and Paracrine Immune Senescence in Bystander Dendritic Cells

Frontiers in Cellular and Infection Microbiology, 2021
Periodontitis is a disease of ageing or inflammaging, and is comorbid with other more severe age-related chronic diseases. With advanced age comes an increase in accumulation of senescent cells that release soluble and insoluble pro-inflammatory factors ...
Ranya Elsayed, Mahmoud Elashiry, Yutao Liu, Ahmed El-Awady, Mark Hamrick, Christopher W. Cutler   +5 more
doaj   +1 more source

Disruption of Immune Homeostasis in Human Dendritic Cells via Regulation of Autophagy and Apoptosis by Porphyromonas gingivalis

Frontiers in Immunology, 2019
As fundamental processes of immune homeostasis, autophagy, and apoptosis must be maintained to mitigate risk of chronic inflammation and autoimmune diseases.
Mohamed M. Meghil, Mohamed M. Meghil, Omnia K. Tawfik, Mahmoud Elashiry, Mahmoud Elashiry, Mythilypriya Rajendran, Roger M. Arce, David J. Fulton, Patricia V. Schoenlein, Christopher W. Cutler   +9 more
doaj   +1 more source

Tobacco upregulates P. gingivalis fimbrial proteins which induce TLR2 hyposensitivity.

PLoS ONE, 2010
BackgroundTobacco smokers are more susceptible to periodontitis than non-smokers but exhibit reduced signs of clinical inflammation. The underlying mechanisms are unknown.
Juhi Bagaitkar, Donald R Demuth, Carlo Amorin Daep, Diane E Renaud, Deanne L Pierce, David A Scott   +5 more
doaj   +1 more source

Oral community interactions of Filifactor alocis in vitro. [PDF]

PLoS ONE, 2013
Filifactor alocis is a gram positive anaerobe that is emerging as an important periodontal pathogen. In the oral cavity F. alocis colonizes polymicrobial biofilm communities; however, little is known regarding the nature of the interactions between F ...
Qian Wang, Christopher J Wright, Huang Dingming, Silvia M Uriarte, Richard J Lamont   +4 more
doaj   +1 more source