Results 1 to 10 of about 6,481,147 (237)

Flagella, Type I Fimbriae and Curli of Uropathogenic Escherichia coli Promote the Release of Proinflammatory Cytokines in a Coculture System

Microorganisms, 2021
Background. Urinary tract infections (UTIs) are a public health problem in Mexico, and uropathogenic Escherichia coli (UPEC) is one of the main etiological agents. Flagella, type I fimbriae, and curli promote the ability of these bacteria to successfully
Rubí Vega-Hernández, Sara A. Ochoa, Ricardo Valle-Rios, Gustavo A. Jaimes-Ortega, José Arellano-Galindo, Gerardo Aparicio-Ozores, José Antonio Ibarra, Rigoberto Hernández-Castro, Ariadnna Cruz-Córdova, Juan Xicohtencatl-Cortes   +9 more
doaj   +2 more sources

bolA gene involved in curli amyloids and fimbriae production in E. coli: exploring pathways to inhibit biofilm and amyloid formation

Journal of Biological Research - Thessaloniki, 2020
Background Biofilm formation is a complex phenomenon of bacterial cells, involved in several human infections. Its formation is regulated and controlled by several protein factors.
Mohd W. Azam, Azna Zuberi, Asad U. Khan
doaj   +2 more sources

TLR2 Activation by Porphyromonas gingivalis Requires Both PPAD Activity and Fimbriae

Frontiers in Immunology, 2022
Porphyromonas gingivalis, a keystone oral pathogen implicated in development and progression of periodontitis, may also contribute to the pathogenicity of diseases such as arthritis, atherosclerosis, and Alzheimer’s. P. gingivalis is a master manipulator
Aleksandra Wielento, Grzegorz P. Bereta, Katarzyna B. Łagosz-Ćwik, Sigrun Eick, Richard J. Lamont, Aleksander M. Grabiec, Jan Potempa, Jan Potempa   +7 more
doaj   +2 more sources

PapB Family Regulators as Master Switches of Fimbrial Expression [PDF]

Microorganisms
Some bacterial species within the Enterobacteriaceae family possess different types of fimbrial (pili) adhesins that promote adherence to cells and colonization of host tissues.
Fariba Akrami, Hossein Jamali, Mansoor Kodori, Charles M. Dozois   +3 more
doaj   +2 more sources

Porphyromonas gingivalis FimA and Mfa1 fimbriae: Current insights on localization, function, biogenesis, and genotype

Japanese Dental Science Review, 2021
In general, the periodontal pathogen Porphyromonas gingivalis expresses distinct FimA and Mfa1 fimbriae. Each of these consists of five FimA–E and five Mfa1–5 proteins encoded by the fim and mfa gene clusters, respectively.
Yoshiaki Hasegawa, Keiji Nagano
doaj   +2 more sources

Macrophage activation and invasion by P. gingivalis is modulated by PPAD and accessory fimbriae subunits [PDF]

Journal of Oral Microbiology
Background Porphyromonas gingivalis is a master manipulator of host immune responses in the periodontium. Peptidyl arginine deiminase (PPAD), a recently identified virulence factor of P.
Aleksandra Wielento, Dominika M. Drapała, Marina Terekhova, Anna Jacuła, Maxim N. Artyomov, Jakub Kochan, Yoshiaki Hasegawa, Danuta Mizgalska, Juhi Bagaitkar, Aleksander M. Grabiec, Jan Potempa   +10 more
doaj   +2 more sources

Comparative proteomics of uropathogenic Escherichia coli during growth in human urine identify UCA-like (UCL) fimbriae as an adherence factor involved in biofilm formation and binding to uroepithelial cells. [PDF]

Journal of Proteomics, 2016
Uropathogenic Escherichia coli (UPEC) are the primary cause of urinary tract infection (UTI) in humans. For the successful colonisation of the human urinary tract, UPEC employ a diverse collection of secreted or surface-exposed virulence factors ...
Daniël J. Wurpel, Makrina Totsika, L. Allsopp, R. Webb, D. G. Moriel, M. Schembri   +5 more
semanticscholar   +3 more sources

Mfa4, an Accessory Protein of Mfa1 Fimbriae, Modulates Fimbrial Biogenesis, Cell Auto-Aggregation, and Biofilm Formation in Porphyromonas gingivalis. [PDF]

PLoS ONE, 2015
Porphyromonas gingivalis, a gram-negative obligate anaerobic bacterium, is considered to be a key pathogen in periodontal disease. The bacterium expresses Mfa1 fimbriae, which are composed of polymers of Mfa1.
Ryota Ikai, Yoshiaki Hasegawa, Masashi Izumigawa, Keiji Nagano, Yasuo Yoshida, Noriyuki Kitai, Richard J Lamont, Fuminobu Yoshimura, Yukitaka Murakami   +8 more
doaj   +2 more sources

Sequence analyses of fimbriae subunit FimA proteins on Actinomyces naeslundii genospecies 1 and 2 and Actinomyces odontolyticus with variant carbohydrate binding specificities

BMC Microbiology, 2006
Background Actinomyces naeslundii genospecies 1 and 2 express type-2 fimbriae (FimA subunit polymers) with variant Galβ binding specificities and Actinomyces odontolyticus a sialic acid specificity to colonize different oral surfaces.
Persson Karina, Birve Anna, Öhman Ulla, Hallberg Kristina, Drobni Mirva, Johansson Ingegerd, Strömberg Nicklas   +6 more
doaj   +2 more sources

H-NS is the major repressor of Salmonella Typhimurium Pef fimbriae expression

Virulence, 2019
Fimbriae play an important role in adhesion and are therefore essential for the interaction of bacteria with the environments they encounter. Most of them are expressed in vivo but not in vitro, thus making difficult the full characterization of these ...
Genaro Alejandro Hurtado-Escobar, Olivier Grépinet, Pierre Raymond, Nadia Abed, Philippe Velge, Isabelle Virlogeux-Payant   +5 more
doaj   +2 more sources