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Superoxide dismutase-encoding gene of the obligate anaerobe Porphyromonas gingivalis is regulated by the redox-sensing transcription activator OxyR.

• Naoya Ohara, Yuichiro Kikuchi, Mikio Shoji, Mariko Fujimoto Naito, Koji Nakayama
• Microbiology
• 2006

Inspection of the genomic DNA sequence of the oral anaerobe Porphyromonas gingivalis reveals that the micro-organism possesses the peroxide-sensing transcription activator OxyR, but not the… (More)

Wnt5a-Ror2 signaling between osteoblast-lineage cells and osteoclast precursors enhances osteoclastogenesis

• Kazuhiro Maeda, Yasuhiro Kobayashi, +12 authors Naoyuki Takahashi
• Nature Medicine
• 2012

The signaling molecule Wnt regulates bone homeostasis through β-catenin–dependent canonical and β-catenin–independent noncanonical pathways. Impairment of canonical Wnt signaling causes bone loss in… (More)

Identification of a new membrane-associated protein that influences transport/maturation of gingipains and adhesins of Porphyromonas gingivalis.

• Keiko Sato, Eiko Sakai, +8 authors Koji Nakayama
• The Journal of biological chemistry
• 2005

The dual membrane envelopes of Gram-negative bacteria provide two barriers of unlike nature that regulate the transport of molecules into and out of organisms. Organisms have developed several… (More)

A two-component system regulates gene expression of the type IX secretion component proteins via an ECF sigma factor

• Tomoko Kadowaki, Hideharu Yukitake, +5 authors Koji Nakayama
• Scientific reports
• 2016

The periodontopathogen Porphyromonas gingivalis secretes potent pathogenic proteases, gingipains, via the type IX secretion system (T9SS). This system comprises at least 11 components; however, the… (More)

Csa2, a member of the Rbt5 protein family, is involved in the utilization of iron from human hemoglobin during Candida albicans hyphal growth.

• Kazuko Okamoto-Shibayama, Yuichiro Kikuchi, Eitoyo Kokubu, Yutaka Sato, Kazuyuki Ishihara
• FEMS yeast research
• 2014

Csa2 is a member of both the Candida albicans Rbt5 protein family and the Common in Fungal Extracellular Membranes (CFEM) protein superfamily. CFEM proteins are characterized by an internal domain… (More)

Role of extracytoplasmic function sigma factors in biofilm formation of Porphyromonas gingivalis

• Satosu Onozawa, Yuichiro Kikuchi, +10 authors Hiromasa Hasegawa
• BMC oral health
• 2015

BACKGROUND Porphyromonas gingivalis has been implicated as a major pathogen in the development and progression of chronic periodontitis. P. gingivalis biofilm formation in the subgingival crevice… (More)

[Possible Involvement of Surface Antigen Protein 2 in the Morphological Transition and Biofilm Formation of Candida albicans].

• Kazuko Okamoto-Shibayama, Yuichiro Kikuchi, Eitoyo Kokubu, Kazuyuki Ishihara
• Medical mycology journal
• 2017

Surface antigen protein 2 (Csa2) is a member of the Candida albicans Common in Fungal Extracellular Membranes (CFEM) protein superfamily. We previously established its role in iron acquisition in C.… (More)

Antiseptic effect of slightly acidic electrolyzed water on dental unit water systems.

• Miho Komachiya, Akira Yamaguchi, +8 authors Kuroiwa Akihiro
• The Bulletin of Tokyo Dental College
• 2014

Biofilm formation in dental unit water systems (DUWSs) can contaminate water from three-in-one syringes, air rotors, and low-speed handpieces. This may serve as a potential source of infection for… (More)

Effect of extracytoplasmic function sigma factors on autoaggregation, hemagglutination, and cell surface properties of Porphyromonas gingivalis

• Kazutaka Fujise, Yuichiro Kikuchi, Eitoyo Kokubu, Kazuko Okamoto-Shibayama, Kazuyuki Ishihara
• PloS one
• 2017

Porphyromonas gingivalis is a bacterium frequently isolated from chronic periodontal lesions and is involved in the development of chronic periodontitis. To colonize the gingival crevice, P.… (More)

Effects of deuterium oxide on Streptococcus mutans and Pseudomonas aeruginosa.

• Kaname Hirai, Mihoko Tomida, Yuichiro Kikuchi, Ohmi Ueda, Hiroshi Ando, Naokazu Asanuma
• The Bulletin of Tokyo Dental College
• 2010

A complex aggregation of microorganisms growing on a solid substrate is termed a biofilm and is considered to be an etiological agents. Pseudomonas aeruginosa and Streptococcus mutans are… (More)

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