Შᚨϋज़௨ǛឪƜƢዯᐝᓏƷ൦ኒؾƴƓƚǔ ဃऒܱ७Ʊ၏Ҿࣱ̬ஊƷᚐௌ ٤྾ችඳੱ㧔ᗲᇫ⋵┙ⴡ↢ⅣႺ⎇ⓥᚲ㧕 ⎇ޣⓥ⋡⊛ޤ ᣣᧄߥߤߩක≮వㅴ࿖ߢߪ㧘ᒝᲥ⩶ߦࠃࠆࠊࠁࠆવᨴ∛ߪᷫዋߒߚ߇㧘ᒙᲥ⩶ߦࠃࠆ ᣣᗵᨴ∝߿⮎⠴ᕈ⩶ߦࠃࠆᗵᨴ∝ߪߒࠈჇടߒߡࠆߪ⩶⤥✛ޕᄙߊߩᶖᲥ߿ ᛫⩶ߦ⥄ὼᛶ᛫ᕈ߇ࠆ㧘ᓟᄤ⊛ߥ⮎⠴ᕈ߽₪ᓧߒ߿ߔߚ㧘ߞߚࠎ⊒∝ߔࠆ ߣᴦ≮߇࿎㔍ߥ႐ว߇ᄙߊ㧘ᗵᨴ㒐ᓮ⢻ߩૐਅߔࠆ⠧ੱ߿♧ዩ∛ߥߤߩၮ␆∔ᖚࠍߔࠆ ੱߦߪ⢿ᆭߢ߽ᦨޔ㊀ⷐߥ∛㒮╬ߩක≮ᣉ⸳ౝᗵᨴේ࿃⩶ߩ㧝ߟߢࠆ 1)ߦ․ޕ㧘ᢌⴊ∝ࠍ ⊒∝ߒߚ႐วߩ⥌₸ߪ 80%એߢ㧘⥃ᐥ㊀ᄢߥ㗴ߣߥߞߡࠆޕ ✛⤥⩶ߪ↢ޔᵴࠆߪ⥄ὼ⇇ߩ᳓♽ⅣႺߦᐢߊሽߔࠆⅣႺᏱ⩶ߢ㧘ක≮ᣉ⸳ౝ ߦ㒢ቯߒߚኻ╷ߩߺߢߪ㒢⇇߇ࠆޕ᳓♽ⅣႺ߇ਥߚࠆᗵᨴḮߢࠆߦ߽߆߆ࠊࠄߕ✛ޔ ⤥⩶ߩ↢ᘒߦߪਇߥὐ߇ᄙޕ࿁∛ޔ㒮ᖚ⠪߅ࠃ߮ㄝߩ᳓♽ⅣႺ߆ࠄಽ㔌ߐࠇߚ⩶ ᩣࠍ↪ߡޔⅣႺਛߢߩ↢ᕷታᘒޔㆮવሶဳ∛ޔේㆮવሶߩ⁁ᴫߥߤࠍ⺞ߴߡޔ᳓♽ ⅣႺߩẜࠬࠢࠍᛠីߒޔၞߩஜⴡ↢ᗵᨴኻ╷ߦ⾗ߔࠆߎߣࠍ⋡⊛ߣߔࠆޕ ᧚ޣᢱߣᣇᴺ ޤ 㧝㧚᳓♽ⅣႺ߆ࠄߩ✛⤥⩶ಽ㔌 ᗲᇫ⋵ߩᴡᎹ㧘ᴧḓ㧘ᴪጯߥߤ߆ࠄ᳓ࠍណขᓟ㧘⚦⩶↪ၭߢ↢⩶ᢙࠍ᷹ቯߒߚ⤥✛ޕ ⩶ߩㆬᛯߪ㧘࠻ࡒ࠼ၭߦ࠽ࠫࠢࠬ㉄ࠍᷝടߒߚ߽ߩࠍ↪ߡⴕߞߚߩ⩶⤥✛ޕห ቯߪ㧘↢‛ቇ⊛↢ൻቇ⊛ᕈ⁁⹜㛎ࠍቯᴺߦߒߚ߇ߞߡታᣉߒ⏕ߒߚ⊖ޕᢙචᩣߩ✛⤥ ⩶ᩣࠍಽ㔌ߒߚ∛ޕ㒮ᖚ⠪߆ࠄណขߐࠇߚ⥃ᐥಽ㔌⩶ࠍኻᾖߣߒߡ↪ߚޕ 㧞㧚✛⤥⩶ᩣߩㆮવሶ࠲ࠗࡇࡦࠣ ㆮવሶဳ࠲ࠗࡇࡦࠣߪ㧘ߘࠇߙࠇߩ⩶ᩣࠃࠅࠥࡁࡓ DNA ࠍߒ㧘㒢㉂⚛ߢᶖൻߒߚ ᓟ㧘ࡄ࡞ࠬࡈࠖ࡞࠼㔚᳇ᵒേࠍታᣉߒߚ↹ࠍࡦ࠲ࡄ࠼ࡦࡃߩߘޕ⸃ᨆߒߡ㧘⋧หᕈ ࠍၮߦ ࠣ࡞ࡇࡦࠣࠍⴕߞߚޕ 㧟㧚✛⤥⩶ᩣߩ∛ේㆮવሶ⁁ᴫ ✛⤥⩶ߩ∛ේᕈ⊒ߣ㑐ㅪߔࠆࠢࠝࡓࡦࠪࡦࠣ(Quorum Sensing: QS)ㆮવሶ(lasI, lasR, rhlI, rhlR)߅ࠃ߮࠲ࠗࡊ III ಽᴲᯏ᭴(Type III Secretion System: TTSS)ㆮવሶ(popB, 㧙 㧙 popD, pcrV, exoS, exoT, exoU, exoY)ߩ⁁ᴫࠍޔฦ⩶ᩣߩࠥࡁࡓ DNA ࠍ㍌ဳߣߒߡ PCR ᴺߢ⺞ߴߚޕ ⚿ޣᨐߣ⠨ኤޤ 㧝㧚⥃ᐥⅣႺಽ㔌ᩣߩㆮવሶဳߩ․ᓽ ᗲᇫ⋵ౝߩᴪጯᴡᎹߥߤߩ⥄ὼⅣႺ߅ࠃ߮∛㒮ᖚ⠪߆ࠄ✛⤥⩶ࠍಽ㔌ߒߚޕណขߒߚ ႐ᚲ㧘߅ࠃ߮ಽ㔌ߒߚ✛⤥⩶ᩣࠍ࿑㧝ߦ␜ߔ⩶ޕᩣ㑆ߩࠥࡁࡓㄭ✼ᐲࠍ⍮ࠆߚߦ㧘ฦ⩶ ᩣ߆ࠄᨴ⦡ DNA ࠍߒ㧘㒢㉂⚛ SpeI ߢಣℂᓟ㧘ࡄ࡞ࠬࡈࠖ࡞࠼㔚᳇ᵒേ(PFGE) ࠍታᣉߒߚࠄ߆ࡦ࠲ࡄ࠼ࡦࡃߩߘޕ㧘ࠥࡁࡓႮၮ㈩ߩㄭ✼ᐲࠍ⸃ᨆߒߚ㧔࿑㧞㧕ޕ60% ⋧หᕈࠍၮߦ 13 ࠣ࡞ࡊߦ߹ߣࠄࠇߚ⥃ޕᐥᩣߪోߡ߇⇣ߥࠆ PFGE ࡃࡦ࠼ࡄ࠲ࡦࠍ ␜ߒㆮવሶဳ߇ᄙ᭽ߢߞߚߪߣߎߩߎޕ㧘ห৻∛㒮ౝߢಽ㔌ߐࠇߚ⩶ᩣߢࠆ߇㧘㒮ౝ ᗵᨴߦࠃࠆવߢߪߥߊ㧘ߘࠇߙࠇߩᖚ⠪ߪߦᗵᨴߒߚߎߣࠍᗧߒߡࠆޕⅣႺᩣ ߢߪ⥝ࠆ⍮߇ᓧࠄࠇߚߜࠊߥߔޕ㧘ᴡᎹਛᵹၞ㧘ਅᵹၞߩಽ㔌ᩣߪ㧘ᄙ᭽ߥㆮવሶ ဳࠍ␜ߒߚ߇㧘ᴡᎹᵹၞ㧘ᴡญၞ㧘߅ࠃ߮ᴪጯᶏ᳓ၞߩಽ㔌ᩣߪᄙ᭽ᕈ߇ૐߊ㧘ห৻ߩ ࠢࡠࡦߣᕁࠊࠇࠆ⩶ᩣ߽ሽߒߚ㧔࿑ 2㧕ޕᴡᎹਛᵹၞ㧘ਅᵹၞߪಽ㔌⩶ᢙ߽ᄙߊ㧘ᄙ᭽ ߥ✛⤥⩶߇ᷙߒߡࠆߣ⠨߃ࠄࠇࠆ৻ޕᣇ㧘ᴡᎹᵹၞ㧘ᴡญၞ߅ࠃ߮ᴪጯᶏ᳓ၞߢߪ 㒢ࠄࠇߚㆮવሶဳߩ✛⤥⩶߇↢ᕷߒߡࠆߣ⠨߃ࠄࠇࠆߚ߹ޕ㧘ਅᵹၞ㧘ᴡญၞ㧘ᴪጯၞ ߩಽ㔌ᩣߩㆮવሶဳ߇⇣ߥߞߡࠆߎߣߪ㧘ᵹࠇߦߒߚ߇ߞߡᵹߒߚ⩶߇ߘߩ߹߹ቯ⌕ ߒ↢ᕷߔࠆ⸶ߢߪߥߊ㧘ᴡญߩᴁ᳓ၞ߿ᴪጯߩᶏ᳓ၞߦㆡᔕߒߚ߽ߩ߇↢ᕷߒߡࠆߣ⠨ ߃ࠄࠇࠆޕ 㧞㧚⥃ᐥⅣႺಽ㔌ᩣߩ∛ේᕈ㑐ㅪㆮવሶ⁁ᴫ ✛⤥⩶ߩ∛ේᕈߦ㑐ߔࠆ⎇ⓥߪ㧘ਥߣߒߡ⥃ᐥಽ㔌ᩣࠍኻ⽎ߦታᣉߐࠇߡ߈ߚࠄࠇߎޕ ߪࡅ࠻ߦᗵᨴߒჇ⩶ߢ߈ߚ⩶ߢ㧘∛ේᕈ߇㜞߽ߩ߇ㆬᛯߐࠇߡࠆน⢻ᕈ߇ࠆ⥄ޕὼ ⅣႺਛߦ↢ᕷߔࠆ✛⤥⩶ߩ∛ේᕈߪߤ߁ߢࠈ߁߆ߩߎޕὐࠍ⺞ߴࠆ⋡⊛ߢ∛ේㆮવሶߩ ሽߩήࠍᬌ⸛ߒߚ∛ޕේㆮવሶߩਛ߆ࠄ㧘ࠢࠝࡓࡦࠪࡦࠣ(QS:Quorum sensing)ㆮવሶ(lasI, lasR, rhlI, rhlR)㧘߅ࠃ߮࠲ࠗࡊ III ಽᴲᯏ᭴(TTSS:type III secretion system)ㆮવሶ(effector ㆮવሶ: exoS, exoT, exoU, exoY, ߅ࠃ߮ translocator ㆮવሶ: popB, popD, pcrV)ߩ 11 ߩㆮવሶࠍኻ⽎ߣߒߚ∛ߩ⩶⤥✛߇ࠄࠇߎޕේᕈ⊒ߦ߅ߡ㊀ⷐߢ ࠆߎߣ߇㧘⥃ᐥᩣߩ⎇ⓥ߆ࠄࠄ߆ߦߐࠇߡࠆޕ QS ᯏ᭴ߪ⚦⩶߇࿐ߩ⩶ኒᐲࠍᗵ⍮ߔࠆᯏ᭴ߢ㧘⩶ኒᐲ߇৻ቯએߦߥࠆߣ․ቯߩㆮવ ሶߩ⊒߇㐿ᆎߐࠇࠆ 2)ޕQS ᯏ᭴ߪ⩶ߩ∛ේᕈ⊒ߦ߅ߡ㊀ⷐߢ㧘ᗵᨴዪᚲߢ⩶߇৻ቯ ᢙჇᱺߒߚᲑ㓏ߢ∛ේ࿃ሶߩวᚑ߇㐿ᆎߔࠆߎߣߪ㧘∛ේߦߣߞߡวℂ⊛ߣ⠨߃ࠄࠇߡ 㧙 㧙 ࠆ 3, 4)৻ޕᣇ㧘ᴡᎹ߿ᴪጯߩ᳓ၞߪੱߥߤߣᲧߴߪࠆ߆ߦ⽺ᩕ㙃⁁ᘒߢࠅ㧘ណขߐࠇ ࠆ⩶ᢙ߽ዋߥߊ㧘⩶ኒᐲ߇ߐ߶ߤ㜞ߊߥࠆߣߪ⠨߃ߦߊߡߞ߇ߚߒޕ㧘⥄ὼⅣႺࠍਥߚ ࠆ↢ᕷ႐ᚲߣߔࠆ⩶ߪ㧘QS ㆮવሶߩᔅⷐᕈ߇ૐߩߢߪߥ߆ߣ੍ᗐߐࠇߚߒ߆ߒޕ㧘Ⅳ Ⴚᩣߪ⥃ᐥᩣߣห᭽ߦ QS ㆮવሶࠍߒ㧘⺞ߴߚ 154 ᩣߪోߡ QS ㆮવሶ(lasI, lasR, rhlI, rhlR)ࠍߒߡߚ㧔 1㧕ߪߣߎߩߎޕ㧘QS ᯏ᭴߇∛ේᕈ⊒ߦ㑐ਈߔࠆߩߺߥࠄߕ㧘⥄ ὼⅣႺਛߢߩㆡᔕ↢ሽߦ߅ߡ߽㊀ⷐߥᓎഀࠍᨐߚߒߡࠆߎߣࠍ␜ໂߔࠆޕ TTSS ߪ࠾࠼࡞᭴ㅧࠍㅢߓߡᮡ⊛ኋਥ⚦⢩ߦࠛࡈࠚࠢ࠲࠲ࡦࡄࠢ⾰ࠍᵈߔࠆᯏ᭴ ߢ㧘ࠛࡈࠚࠢ࠲ߪ⚦⢩↢ℂᯏ⢻ࠍᡬੂߒ㧘∛ේᕈߩ⊒ߦ߅ߡ㊀ⷐߢࠆ 5)ޕTTSS ߪ ⚦⩶ߩჇᱺߦߪᔅ㗇ߢߥߊ㧘ኋਥߦᗵᨴߒߚ㓙ߦᮡ⊛⚦⢩ߦ߈߆ߌࠆߩߢࠆ߆ࠄ㧘ᴡ Ꮉᴪጯߩ⥄ὼⅣႺਛߢߪᔅⷐᕈ߇ૐߩߢߪߥ߆ߣ੍ᗐߐࠇߚߒ߆ߒޕ㧘154 ᩣߩⅣႺ ᩣ߅ࠃ߮⥃ᐥᩣߪోߡ TTSS translocator ㆮવሶ(popB, popD, pcrV)ࠍߒߡߚ㧔 2㧕ޕ effector ㆮવሶߦ㑐ߒߡ߽㧘ోߡߩᩣ߇ exoT ࠍߒ㧘߶ߣࠎߤߩᩣ߇ exoY ࠍߒߡ ߚ㧔 2㧕ߡߞ߇ߚߒޕ㧘TTSS ߽⥄ὼⅣႺਛߢᯏ⢻ߒߡࠆߣᗐቯߐࠇࠆ৻ޕᣇ㧘exoS ߣ exoU ߪ 2 ⠪ᛯ৻⊛ߦߐࠇࠆ߇㧘ߘࠇߙࠇߩ₸߇ಽ㔌႐ᚲߦࠃߞߡ⪺ߒߊ⇣ߥߞ ߡߚ㧔 2㧕ߜࠊߥߔޕ㧘⥃ᐥᩣߢߪ exoS(+)exoU(-)߇ 64.5%,exoS(-)exoU(+)߇ 35.5%ߢ ࠆ ߩ ߦ ኻ ߒ 㧘 ᴡ Ꮉ ᩣ ߢ ߪ exoS(+)exoU(+) ߇ 1.1%, exoS(+)exoU(-) ߇ 98.9% 㧘 exoS(-)exoU(+)߇ 0%ߢߞߚޕㅒߦ㧘ᴪጯᩣߢߪ exoS(+)exoU(-)߇ 11.4%, exoS(-)exoU(+) ߇ 88.6%ߢߞߚޕexoS ߪ N ᧃ┵ߦ GAP(GTPase activating protein)㗔ၞࠍ㧘C ᧃ┵ߦ ADP ribosylase 㗔ၞࠍߔࠆੑᯏ⢻࠲ࡦࡄࠢ⾰ߢ㧘ᮡ⊛⚦⢩ߩ↢ℂᯏ⢻ࠍᄌൻߐߖࠆ৻ޕ ᣇ㧘exoU ߪ phospholipase A2 ᵴᕈࠍߒ㧘ᮡ⊛⚦⢩ࠍ⚦⢩ᱫߐߖࠆޕ ޤߦࠅࠊ߅ޣ ✛⤥⩶ߩਥߚࠆ↢ᕷ႐ᚲߪ㧘⥄ὼ⇇ߩḨẢߥⅣႺߢࠆᦨߡߒߣ⩶⚦ޕᄢࠢࠬߩࠥࡁ ࡓ߿ᄙᢙߩᓮ♽ㆮવሶឃ♽ㆮવሶߩሽߪ㧘ⅣႺㆡᔕ⢻ജߩ㜞ߐߣ㑐ㅪ߇ࠆߢ ࠈ߁ 11)ߩߤߥ࠻ࡅޕኋਥߦኻߔࠆ∛ේᕈߩ⊒ߦ․ൻߒߡ⊒㆐ߒߚߣ⠨߃ࠄࠇߡ߈ߚ∛ේ ㆮવሶ⟲߇㧘⥄ὼ↢ᘒ♽ߢߩㆡᔕ↢ሽߩㆊ⒟ߢ₪ᓧߐࠇߚߩߢߪߥ߆ߣ߽⠨߃ࠄࠇࠆޕ ߹ߚ㧘ߎߩࠃ߁ߥ⎇ⓥߪ㧘ߚߛߜߦ㧘ⅣႺᓸ↢‛ߩẜࠬࠢࠍ⹏ଔߔࠆߎߣߦߥࠅ㧘Ⅳ Ⴚ߇ᗵᨴḮᗵᨴ⚻〝ߣߥࠆࠃ߁ߥࡅ࠻ᗵᨴ∝ߩ੍㒐ᚻᲑߩ⏕┙ߦ߅ߡ߽㊀ⷐߢࠆޕ ޣਥߥᢥ₂ޤ 1) Stover CK, Pham XQ, Erwin AL et al: Complete genome sequence of Pseudomonas aeruginosa PAO1, an opportunistic pathogen. Nature 2000;406:959–64. 2) Bassler BL: Small talk. Cell-to-cell communication in bacteria. Cell 2002;109:421–4. 㧙 㧙 3) Miller MB, Skorupski K, Lenz DH et al: Parallel quorum sensing systems converge to regulate virulence in Vibrio cholerae. Cell 2002;110:303–14. 4) Wu L, Estrada O, Zaborina O: Recognition of host immune activation by Pseudomonas aeruginosa. Science 2005;309:774–7. 5) Galán JE, Collmer A: Type III secretion machines: bacterial devices for protein delivery into host cells. Science 1999;284:1322–8. ⻢ޣㄉޤ ᧄ⎇ⓥࠍታᣉߔࠆߦߚࠅ㧘⎇ⓥഥᚑࠍߚߛ߈߹ߒߚ⽷࿅ᴺੱᄢห↢ᬺ࿅ߦෘߊ ᓮ␞↳ߒߍ߹ߔޕ ⾌⚻ޣㅜౝ⸶ޤ ㅜ ౝ ኈ ⚦⩶ၭ㙃⹜⮎㧔᥉ㅢၭ㧘࠻ࡒ࠼ၭ㧘࠽ࠫࠠࠪࡦ㉄㧕 ಽሶ↢‛ቇ⹜⮎㧔㒢㉂⚛㧘PCR ㉂⚛㧘วᚑࡊࠗࡑ㧕 ࡊࠬ࠴࠶ౕེࠢ㘃㧔ࠪࡖ㧘㆙ᔃ࠴ࡘࡉ㧘ࡇࡍ࠶࠻ࡑࡦ㧕 ߘߩઁ㧔ࠦࡇ↪⚕㧘ᢥᚱౕ╬㧕 ㊄ 㗵 98,040 130,250 68,960 27,50 ว ⸘ 300,000 㧙 㧙 㧝㧚ࠢࠝࡓࡦࠪࡦࠣㆮવሶߩ✛⤥⩶ᩣߦ߅ߌࠆ₸ ✛⤥⩶ᩣ lasI lasR rhlI rhlI ⥃ᐥᩣ (31 ᩣ) 100% 100% 100% 100% ᴡᎹᩣ (88 ᩣ) 100% 100% 100% 100% ᴪጯᩣ (35 ᩣ) 100% 100% 100% 100% 㧞㧚࠲ࠗࡊ III ಽᴲᯏ᭴㑐ㅪㆮવሶߩ✛⤥⩶ᩣߦ߅ߌࠆ₸ ✛⤥⩶ᩣ Translocator ㆮવሶ Effecter ㆮવሶ pcrV popB popD exoT exoS exoU exoY ⥃ᐥᩣ (31 ᩣ) 100% 100% 100% 100% 64.5% 35.5% 87.1% ᴡᎹᩣ (88 ᩣ) 100% 100% 100% 100% 100% 1.1% 98.9% ᴪጯᩣ (35 ᩣ) 100% 100% 100% 100% 11.4% 88.6% 100% 㧙 㧙
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