uvod u imunski sistem
DESCRIPTION
Uvod u imunski sistem. Urođena i stečena imunost Tipovi stečene imunosti Svojstva i faze stečenog imunskog odgovora Centralni i periferni limfni organi Recirkulacija limfocita. STEČENA (A daptivna ). URO ĐENA (P rirodna ) (Nativna). IMUNOST. Osnovni mehanizmi - PowerPoint PPT PresentationTRANSCRIPT
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Uvod u imunski sistem
• Urođena i stečena imunost• Tipovi stečene imunosti• Svojstva i faze stečenog imunskog
odgovora• Centralni i periferni limfni organi• Recirkulacija limfocita
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IMUNOST
UROĐENA
(Prirodna)
(Nativna)
STEČENA
(Adaptivna)
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Osnovni mehanizmi urođene i stečene imunosti
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Redosled događaja u infekciji
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Patogeni ulaze u organizam
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Patogeni ulaze u organizam
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Patogeni ulaze u organizam
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Makrofagi prepoznaju i eliminišu patogene
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Makrofagi prepoznaju i eliminišu patogene
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Makrofagi prepoznaju i eliminišu patogene
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Pokreće se zapaljenje i dolaze neutrofili
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Pokreće se zapaljenje i dolaze neutrofili
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Antigen-prezentujuće ćelije preuzimaju antigen...
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Antigen-prezentujuće ćelije preuzimaju antigen...
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... odlaze u drenirajući limfni čvor...
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... odlaze u drenirajući limfni čvor...
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... odlaze u drenirajući limfni čvor...
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... odlaze u drenirajući limfni čvor...
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... odlaze u drenirajući limfni čvor...
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... odlaze u drenirajući limfni čvor...
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... odlaze u drenirajući limfni čvor...
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... odlaze u drenirajući limfni čvor...
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... odlaze u drenirajući limfni čvor...
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... aktiviraju T-limfocite...
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... aktiviraju T-limfocite...
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... aktiviraju T-limfocite...
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Aktivirani T-limfociti pomažu B-limfocitima
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Aktivirani T-limfociti pomažu B-limfocitima
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Aktivirani T-limfociti pomažu B-limfocitima
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Aktivirani B-limfociti stvaraju antitela
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Aktivirani B-limfociti stvaraju antitela
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Aktivirani B-limfociti stvaraju antitela
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Aktivirani B-limfociti stvaraju antitela
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Aktivirani T-limfociti i antitela napuštaju limfni čvor...
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... ulaze u krvotok i...
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... ulaze u krvotok i...
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... odlaze na mesto na infekcije
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... odlaze na mesto na infekcije
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... odlaze na mesto na infekcije
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Aktivirani T-limfociti pomažu fagocitozu
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Aktivirani T-limfociti pomažu fagocitozu
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Aktivirani T-limfociti pomažu fagocitozu
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Aktivirani T-limfociti pomažu fagocitozu
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Antitela neutrališu patogene i pomažu fagocitozu
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Antitela neutrališu patogene i pomažu fagocitozu
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Antitela neutrališu patogene i pomažu fagocitozu
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Antitela neutrališu patogene i pomažu fagocitozu
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Antitela neutrališu patogene i pomažu fagocitozu
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http://instruction.cvhs.okstate.edu/vmed5253/immunobiology.swf
Patogen je uklonjen iz organizma
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Osnovni mehanizmi urođene i stečene imunosti
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MEHANIZMI STEČENE (ADAPTIVNE) IMUNOSTI
- stiču se tokom života
- rezultat su kontakta organizma sa datim patogenom
- javljaju se kod kičmenjaka
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Svojstva sistema stečene imunosti
- raznovrsnost i specifičnost
- memorija
- klonska ekspanzija
- autotolerancija
- specijalizacija
- stimulacija mehanizama urođene imunosti
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Tipovi stečene imunosti
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Faze stečenog imunskog odgovora
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Regulatorni T- limfocit
Supresija imunskog odgovora
Vrste limfocita
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LIMFNI ORGANI
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Recirkulacija T limfocita
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limfni čvorovi, slezina, MALTj.Primarni stečeni imunski odgovor započinje u
10.
perifernim limfnim organimai.Periferni (sekundarni) limfni organi kod čoveka su
9.
epitelne barijereh.Centralni (primarni, generativni) limfni organi kod čoveka su
8.
ranoj odbrani od infektivnih agenasag.Važna svojstva ćelija stečene imunosti su
7.
kostna srž i timusf.Tipovi stečene imunosti su6.
raznovrsnost, specifičnost, memorijae.Ćelije stečene imunosti su5.
prirodna ili nativna imunostd.Ćelije urođene imunosti su4.
B- i T-limfocitic.Prvu liniju odbrane u urođenoj imunosti čine
3.
humoralna i celularnab.Mehanizmi urođene imunosti posreduju u
2.
fagociti i NK ćelijea.Urođena imunost naziva se i1.
1._____ 2._____ 3._____ 4._____ 5._____ 6._____ 7._____ 8._____ 9._____ 10.____d. g. h. a. c. b. e. f. j. i.
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Sledeća nedelja Urođena imunost
Predavanje:Svojstva urođene imunostiPrepoznavanje mikroorganizama od strane ćelija urođene imunosti
Seminar:Komponente urođene imunosti (celularne i humoralne) Uloga urođene imunosti u stimulisanju stečenog imunskog odgovora