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Francois Niyonsaba

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Xue Chen; Francois Niyonsaba; Ko Okumura; Toshiro Takai; Yang Xie; Hideoki Ogawa
Human antimicrobial peptide LL-37 modulates proinflammatory responses induced by cytokine milieus and double-stranded RNA in human keratinocytes.
Minoru Fukuda; Keiichi Hiramatsu; Junko Kawasaki; Francois Niyonsaba; Ko Okumura; Mizuho Takeuchi; Hiroko Ushio; Tadashi Baba; Hideoki Ogawa
Expression and functional characterization of retinoic acid-inducible gene-I-like receptors of mast cells in response to viral infection.
Toan The Nguyen; Francois Niyonsaba; Toshihiro Akiyama; Shigaku Ikeda; Chanisa Kiatsurayanon; Ko Okumura; Rithee Smithrithee; Hiroko Ushio; Hideoki Ogawa
Interleukin-36 cytokines enhance the production of host defense peptides psoriasin and LL-37 by human keratinocytes through activation of MAPKs and NF-κB.

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All Publications

2013: Xue Chen; Francois Niyonsaba; Ko Okumura; Toshiro Takai; Yang Xie; Hideoki Ogawa
Human antimicrobial peptide LL-37 modulates proinflammatory responses induced by cytokine milieus and double-stranded RNA in human keratinocytes.
Biochemical and biophysical research communications 2013;433(4):532-7.
2013: Minoru Fukuda; Keiichi Hiramatsu; Junko Kawasaki; Francois Niyonsaba; Ko Okumura; Mizuho Takeuchi; Hiroko Ushio; Tadashi Baba; Hideoki Ogawa
Expression and functional characterization of retinoic acid-inducible gene-I-like receptors of mast cells in response to viral infection.
Journal of innate immunity 2013;5(2):163-73.
2012: Toan The Nguyen; Francois Niyonsaba; Toshihiro Akiyama; Shigaku Ikeda; Chanisa Kiatsurayanon; Ko Okumura; Rithee Smithrithee; Hiroko Ushio; Hideoki Ogawa
Interleukin-36 cytokines enhance the production of host defense peptides psoriasin and LL-37 by human keratinocytes through activation of MAPKs and NF-κB.
Journal of dermatological science 2012;68(1):63-6.
2011: Md Imranul Hoq; Francois Niyonsaba; Ko Okumura; Hiroko Ushio; Gyi Aung; Hideoki Ogawa
Human catestatin enhances migration and proliferation of normal human epidermal keratinocytes.
Journal of dermatological science 2011;64(2):108-18.
2011: Gyi Aung; Shigaku Ikeda; Francois Niyonsaba; Ko Okumura; Hiroko Ushio; Hideoki Ogawa
Elafin and secretory leukocyte protease inhibitor stimulate the production of cytokines and chemokines by human keratinocytes via MAPK/ERK and NF-κB activation.
Journal of dermatological science 2011;63(2):128-31.
2011: Junko Kawasaki; Hiroko Ushio; Hirokazu Kinoshita; Tatsuo Fukai; Francois Niyonsaba; Tshiro Takai; Hideoki Ogawa; Ko Okumura; Shigaku Ikeda
Viral infection induces Thymic stromal lymphopoietin (TSLP) in human keratinocytes.
Journal of dermatological science 2011;62(2):131-4.
2011: Gyi Aung; Francois Niyonsaba; Hiroko Ushio; Naoki Kajiwara; Hirohisa Saito; Shigaku Ikeda; Hideoki Ogawa; Ko Okumura
Catestatin, a neuroendocrine antimicrobial peptide, induces human mast cell migration, degranulation and production of cytokines and chemokines.
Immunology 2011;132(4):527-39.
2011: Gyi Aung; Francois Niyonsaba; Hiroko Ushio; M Imranul Hoq; Shigaku Ikeda; Hideoki Ogawa; Ko Okumura
A neuroendocrine antimicrobial peptide, catestatin, stimulates interleukin-8 production from human keratinocytes via activation of mitogen-activated protein kinases.
Journal of dermatological science 2011;61(2):142-4.
2010: Isao Nagaoka; Kaori Suzuki; Taisuke Murakami; Francois Niyonsaba; Hiroshi Tamura; Michimasa Hirata
Evaluation of the effect of α-defensin human neutrophil peptides on neutrophil apoptosis.
International journal of molecular medicine 2010;26(6):925-34.
2010: Hiroshi Takenaka; Hiroko Ushio; Francois Niyonsaba; Sumanasiri T M Jayawardana; Suto Hajime; Shigaku Ikeda; Hideoki Ogawa; Ko Okumura
Synergistic augmentation of inflammatory cytokine productions from murine mast cells by monomeric IgE and toll-like receptor ligands.
Biochemical and biophysical research communications 2010;391(1):471-6.
2009: Yasuko Ishikawa; Tomoko Tokura; Hiroko Ushio; Francois Niyonsaba; Yuji Yamamoto; Tadahiro Tadokoro; Hideoki Ogawa; Ko Okumura
Lipid-soluble components of honeybee-collected pollen exert antiallergic effect by inhibiting IgE-mediated mast cell activation in vivo.
Phytotherapy research : PTR 2009;23(11):1581-6.
2009: Francois Niyonsaba; Asuka Suzuki; Hiroko Ushio; Isao Nagaoka; Hideoki Ogawa; Ko Okumura
The human antimicrobial peptide dermcidin activates normal human keratinocytes.
The British journal of dermatology 2009;160(2):243-9.
2008: Francois Niyonsaba; Fumihiro Hattori; Kaoru Maeyama; Hideoki Ogawa; Kikuhiko Okamoto
Induction of a microbicidal protein psoriasin (S100A7), and its stimulatory effects on normal human keratinocytes.
Journal of dermatological science 2008;52(3):216-9.
2008: Yan Zheng; Francois Niyonsaba; Hiroko Ushio; Shigaku Ikeda; Isao Nagaoka; Ko Okumura; Hideoki Ogawa
Microbicidal protein psoriasin is a multifunctional modulator of neutrophil activation.
Immunology 2008;124(3):357-67.
2008: Isao Nagaoka; Francois Niyonsaba; Yuko Tsutsumi-Ishii; Hiroshi Tamura; Michimasa Hirata
Evaluation of the effect of human beta-defensins on neutrophil apoptosis.
International immunology 2008;20(4):543-53.
2008: Yasuko Ishikawa; Tomoko Tokura; Nobuhiro Nakano; Mutsuko Hara; Francois Niyonsaba; Hiroko Ushio; Yuji Yamamoto; Tadahiro Tadokoro; Ko Okumura; Hideoki Ogawa
Inhibitory effect of honeybee-collected pollen on mast cell degranulation in vivo and in vitro.
Journal of medicinal food 2008;11(1):14-20.
2008: Sumanasiri T M Jayawardana; Hiroko Ushio; Francois Niyonsaba; Srie Prihianti Gondokaryono; Hiroshi Takenaka; Shigaku Ikeda; Ko Okumura; Hideoki Ogawa
Monomeric IgE and lipopolysaccharide synergistically prevent mast-cell apoptosis.
Biochemical and biophysical research communications 2008;365(1):137-42.
2008: Takasuke Ogawa; Toshiro Takai; Takeshi Kato; Yuko Kikuchi; Francois Niyonsaba; Shigaku Ikeda; Ko Okumura; Hideoki Ogawa
Upregulation of the release of granulocyte-macrophage colony-stimulating factor from keratinocytes stimulated with cysteine protease activity of recombinant major mite allergens, Der f 1 and Der p 1.
International archives of allergy and immunology 2008;146(1):27-35.
2007: Y Zheng; Francois Niyonsaba; Hiroko Ushio; Isao Nagaoka; Shigaku Ikeda; Ko Okumura; Hideoki Ogawa
Cathelicidin LL-37 induces the generation of reactive oxygen species and release of human alpha-defensins from neutrophils.
The British journal of dermatology 2007;157(6):1124-31.
2007: Srie Prihianti Gondokaryono; Hiroko Ushio; Francois Niyonsaba; Mutsuko Hara; Hiroshi Takenaka; Sumanasiri T M Jayawardana; Shigaku Ikeda; Ko Okumura; Hideoki Ogawa
The extra domain A of fibronectin stimulates murine mast cells via toll-like receptor 4.
Journal of leukocyte biology 2007;82(3):657-65.
2007: Francois Niyonsaba; Hiroko Ushio; Nobuhiro Nakano; William Ng; Koji Sayama; Koji Hashimoto; Isao Nagaoka; Ko Okumura; Hideoki Ogawa
Antimicrobial peptides human beta-defensins stimulate epidermal keratinocyte migration, proliferation and production of proinflammatory cytokines and chemokines.
The Journal of investigative dermatology 2007;127(3):594-604.
2007: Xuejun Chen; Francois Niyonsaba; Hiroko Ushio; Mutsuko Hara; Hidenori Yokoi; Kenji Matsumoto; Hirohisa Saito; Isao Nagaoka; Shigaku Ikeda; Ko Okumura; Hideoki Ogawa
Antimicrobial peptides human beta-defensin (hBD)-3 and hBD-4 activate mast cells and increase skin vascular permeability.
European journal of immunology 2007;37(2):434-44.
2006: Hidenori Yokoi; Yoshimichi Okayama; Francois Niyonsaba; Masato Fujimori; Fuyuki Enomoto; Hiroshi Yoshikawa; Katsuhisa Ikeda; Hirohisa Saito
Comparison of human tonsillar mast cell localization and ultrastructural observations between IgE-mediated allergic and nonallergic donors.
Allergy and asthma proceedings : the official journal of regional and state allergy societies 2006;27(5):415-21.
2006: Xuejun Chen; Francois Niyonsaba; Hiroko Ushio; Isao Nagaoka; Shigaku Ikeda; Ko Okumura; Hideoki Ogawa
Human cathelicidin LL-37 increases vascular permeability in the skin via mast cell activation, and phosphorylates MAP kinases p38 and ERK in mast cells.
Journal of dermatological science 2006;43(1):63-6.
2006: Francois Niyonsaba; Isao Nagaoka; Hideoki Ogawa
Human defensins and cathelicidins in the skin: beyond direct antimicrobial properties.
Critical reviews in immunology 2006;26(6):545-76.
2005: Francois Niyonsaba; Hideoki Ogawa
Protective roles of the skin against infection: implication of naturally occurring human antimicrobial agents beta-defensins, cathelicidin LL-37 and lysozyme.
Journal of dermatological science 2005;40(3):157-68.
2005: Xuejun Chen; Francois Niyonsaba; Hiroko Ushio; Daiju Okuda; Isao Nagaoka; Shigaku Ikeda; Ko Okumura; Hideoki Ogawa
Synergistic effect of antibacterial agents human beta-defensins, cathelicidin LL-37 and lysozyme against Staphylococcus aureus and Escherichia coli.
Journal of dermatological science 2005;40(2):123-32.
2005: Francois Niyonsaba; Hiroko Ushio; Isao Nagaoka; Ko Okumura; Hideoki Ogawa
The human beta-defensins (-1, -2, -3, -4) and cathelicidin LL-37 induce IL-18 secretion through p38 and ERK MAPK activation in primary human keratinocytes.
Journal of immunology (Baltimore, Md. : 1950) 2005;175(3):1776-84.
2005: Pichai Sampanthanarak; Francois Niyonsaba; Hiroko Ushio; Isao Nagaoka; Sigaku Ikeda; Ko Okumura; Hideoki Ogawa
The effect of antibacterial peptide human beta-defensin-2 on interleukin-18 secretion by keratinocytes.
Journal of dermatological science 2005;37(3):188-91.
2004: Francois Niyonsaba; Hideoki Ogawa; Isao Nagaoka
Human beta-defensin-2 functions as a chemotactic agent for tumour necrosis factor-alpha-treated human neutrophils.
Immunology 2004;111(3):273-81.
2003: Francois Niyonsaba; Michimasa Hirata; Hideoki Ogawa; Isao Nagaoka
Epithelial cell-derived antibacterial peptides human beta-defensins and cathelicidin: multifunctional activities on mast cells.
Current drug targets. Inflammation and allergy 2003;2(3):224-31.
2002: Isao Nagaoka; Satoko Hirota; Francois Niyonsaba; Michimasa Hirata; Yoshiyuki Adachi; Hiroshi Tamura; Shigenori Tanaka; Didier Heumann
Augmentation of the lipopolysaccharide-neutralizing activities of human cathelicidin CAP18/LL-37-derived antimicrobial peptides by replacement with hydrophobic and cationic amino acid residues.
Clinical and diagnostic laboratory immunology 2002;9(5):972-82.
2002: Francois Niyonsaba; Kazuhisa Iwabuchi; Akimasa Someya; Michimasa Hirata; Hiroshi Matsuda; Hideoki Ogawa; Isao Nagaoka
A cathelicidin family of human antibacterial peptide LL-37 induces mast cell chemotaxis.
Immunology 2002;106(1):20-6.
2002: Francois Niyonsaba; Kazuhisa Iwabuchi; Hiroshi Matsuda; Hideoki Ogawa; Isao Nagaoka
Epithelial cell-derived human beta-defensin-2 acts as a chemotaxin for mast cells through a pertussis toxin-sensitive and phospholipase C-dependent pathway.
International immunology 2002;14(4):421-6.
2001: Isao Nagaoka; Satoko Hirota; Francois Niyonsaba; Michimasa Hirata; Y Adachi; Hiroshi Tamura; D Heumann
Cathelicidin family of antibacterial peptides CAP18 and CAP11 inhibit the expression of TNF-alpha by blocking the binding of LPS to CD14(+) cells.
Journal of immunology (Baltimore, Md. : 1950) 2001;167(6):3329-38.
2001: Francois Niyonsaba; Akimasa Someya; Michimasa Hirata; Hideoki Ogawa; Isao Nagaoka
Evaluation of the effects of peptide antibiotics human beta-defensins-1/-2 and LL-37 on histamine release and prostaglandin D(2) production from mast cells.
European journal of immunology 2001;31(4):1066-75.