Transcript Document

TB uaxlesi kvlevebis
mimarTulebebi
neli solomonia
VII seminari, 15 seqtemberi, 2009
2006-2015 wlebis TB globaluri gegmis prioritetuli mimarTuleba TB
kvlevebis inicireba, xelSewyoba da koordinirebaa
TB uaxlesi kvlevebi msoflios masStabiT mimdinareobs
Stop TB partnership-is, WHO-s, USAIDS-is, NIH-is
xelmZRvanelobiT
bil da milenda geitsebis fondis, klintonis sainiciativo jgufis, msoflios yvela
qveynis ministerialis mxardaWeriT
msoflios masStabiT mimdinare TB kvlevebis ZiriTadi mimarTulebebia
axali TB preparatebis Seqmna (GATB);
 upiratesad MDR/XDR-TB da LTBI-is samkurnalod
 ukve arsebul preparatebTan maTi maqsimalurad efeqturi kombinaciebis
SemuSaveba;
 moklevadiani (2 Tviani, an naklebi xangrZlivobis) samkurnalo reJimis SemuSaveba.
5 wliani kvlevebis gakveTili:
 ukve arsebuli antibaqteriuli preparatebis TB-is sawinaaRmdegod gamoyeneba
naklebad efeqturia;
 aucilebelia arsebiTad axali qimiuri Semadgenlobis preparatis Seqmna.







daavadebis eliminaciis mizniT axali efeqturi TB vaqcinis Seqmna (AERAS);
diagnostikis axali, swrafi, iafi meTodebis danergva (FIND);
LTBI diagnostika (sazogadoebis aqtiuri skriningisaTvis);
MDR/XDR-TB-is swrafi diagnostika;
filtvgareSe TB-is diagnostika;
TB pacientebis klinikuri mdgomareobis Semfasebeli diagnostikuri saSualebebis da biomarkerebis
srulyofa.
bavSvTa TB-is, da
HIV/AIDS-TB koinfeqciis marTvis gaumjobeseba
mkvlevarTa koordinirebuli muSaobis xelSewyoba;
uaxlesi kvlevis SedegebiT informireba;
Tanamedrove samecniero literaturiT uzrunvelyofa;
mkvlevarTa satreningo sistemis srulyofa.
axali TB preparatis da vaqcinis Seqmnis mizniT biosamedicino kvlevebis
ZiriTadi amocana uaxlesi teqnologiis gamoyenebiT M.tuberculosis
struqturuli;
paTomorfologiuri;
genetikuri;
imunologiuri Taviseburebebis Seswavlaa.
struqturul TaviseburebebSi ZiriTadi aqcenti keTdeba plazmuri membranis Semdeg
ganlagebul
peptidoglikanuri (peptidoglycan) agebulebis mesrisebur, elastiur Sreze da
samSrian garsze, romelic Sedgeba:
 arabino-galaqtanis (arabino-galactan) Sris;
 cximovani mJavebisagan (Mycolic Acid) Semdgari farTe, mJavagamZle Sris;
 parafinis magvari organuli nivTierebebisa da cilovani SenaerTisgan Semdgari (acyl
lipids), wyalgaumtari Srisagan.
mycolyl-arabino-galactan-peptidoglycan, anu mAGP
(1990)
gram-dadebiTi
baqteria
lipid bilayer
peptidoglycan
mikobaqteria
gram-uaryofiTi
baqteria
acyl lipids
lipid + LPS
porins
MYCOLATE
LAM
arabinogalactan
sensitiuri TB-is mkurnaloba I rigis preparatebiT
MDR-TB-is mkurnaloba II rigis preparatebiT
Semcirebuli arCevani XDR-TB-is mkurnalobisas
preparatebi, romlebzeac mimdinareobs kvlevebi
preklinikuri kvlevebi (2005 w.)
Diamine SQ-109
Dipiperidines (SQ-609)
arafTorirebuli qinolonebi
Synthase Inhibitor FAS20013
Translocase I Inhibitors
klinikuri kvlevebi
Diarylquinoline TMC207*
gatifloqsacini
moqsifloqsacini
Nitroimidazole PA-824*
Pyrrole LL-3858*
* axali qimiuri Semadgenlobis preparatebi
axali TB vaqcinis Seqmnis mizniT
stiven ridma (1995-2002) gamoyo mikobaqteriis ori sxvadasxva jgufis cila, romlebic
iwveven mexsierebis ujredebis gaaqtivebas da axdenen gaxangrZlivebuli specifiuri
imunuri pasuxis inducirebas;
genuri inJineriis da dnm-is rekombinaciuri teqnologiis gamoyenebiT ridma Seqmna
am konkretuli cilebis sinTezze pasuxismgebeli xelovnuri geni da Semdeg moaxdina
TviTon cilis sinTezi;
problema Seqmna damxmare qimiurma preparatma, ukve arsebuli ar muSaobs
specifiuri ujreduli pasuxis dros;
2004 wlidan klinikuri kvlevebi mimdinareobs Mtb 72f-ze.
viliam jakobsma xelovnurad daTrguna mikobaqteriis 2 geni, romlebic
pasuxismgebelni arian makrofagis SigniT mTvlemare formis SenarCunebaze da
organizmSi arsebobis da gamravlebis unarze. daasnebovna Tagvebi atenuirebuli
mutanti mikobaqteriebiT da TCD+4 limfocitis deficitis pirobebSic gamoiwvia
maT organizmSi gaxangrZlivebuli adeqvaturi specifiuri imunuri pasuxi.
am principiT Seqmnili atenuirebuli vaqcina savaraudod gamoyenebas hpovebs
imunodeficitur pacientebSi.
aris mcdeloba axali vaqcina Seiqmnas BCG-s da M. tuberculosis
Humanis/an transplantalogiaSi gamoyenebad rapamicinis autofagis safuZvelze,
jerjerobiT klinikuri kvlevebi ar dawyebula.
axali vaqcinis Seqmnas aseve SeiZleba safuZvlad daedos kvleva, romelic adasturebs,
rom M. Tuberculosis Humanis da Africanum-is sapasuxod
adamianis organizms gansxvavebuli imunuri reaqciebi axasiaTebT;
• M. Tuberculosis Humanis da Africanum-is transmisiis da adamianis
inficirebis xarisxi msgavsia, magram afrikuli tipis SemTxvevaSi aqtiuri TB
SedarebiT iSviaTad viTardeba;
• paTogen-specifiuri faqtorebi, kerZod virulentobaze (ESAT-6 antigeni)
pasuxismgebeli Rv3879c geni gansazRvravs M. Tuberculosis
Africanum-is SemTxvevaSi aqtiuri tuberkulozis ganviTarebis nakleb albaTobas.
mikobaqteriis unars makrofagis SigniT da mis gareT xangrZlivad SeinarCunos sicocxlisunarianoba
mis mier ferment isocitrate lyase (ICL)-s gamomuSaveba ganapirobebs
devid raselis kvleviT dadasturda, rom tuberkulomaSi (granulomaSi) moqceuli mTvlemare
mikobaqteriis metaboluri meqanizmi gadaewyoba da iwyebs ferment isocitrate lyase
(ICL) gamomuSavebas, romelic aucilebelia makrofagis SigniT mikobaqteriis arsebobisaTvis;
jon makkineim Seqmna mutanti mikobaqteria, romelic am ferments ver gamoimuSavebs da
daasnebovna Tagvi. mikobaqteria mTvlemare formaSi gadasvlis nacvlad daiRupa, anu
gaxangrZlivebuli imuniteti ar Camoyalibda.
aRmoCnda, rom ICL-is gamomuSavebaze pasuxismgebelia 2 geni da misi gamomuSaveba
aqtiuri mikobaqteriis mier filtvis qsovilSic xdeba.
adamianis organizmi ICL-s ar gamoimuSavebs, anu misi inhibireba makroorganizmisaTvis
problemebs ar Seqmnis
MDR-TB swrafi diagnostikis axali meTodi
Molecular Beacon
 nacxiT dadebiT SemTxvevebSi myisierad aRmoaCens H da R-is mimarT
rezistentobas;
 amcirebs TB-is araadeqvaturi mkurnalobis SemTxvevebs, empiriuli samkurnalo
reJimis SerCevis aucileblobas;
 drouli diagnostirebiT amcirebs MDR-TB-is transmisiis xarisxs;
 iZleva MDR-TB-is standartuli mkurnalobis droulad dawyebis saSualebas.
rezistentoba Molecular Beacon-is konformaciuli cvlilebiT gamowveuli
fluoroscentiuli naTebiT fiqsirdeba
Molecular Beacon
Mutant Sequence
Wildtype Sequence
Amplicon
Fluorophore
Loop
Quencher
Heat
Molecular
Beacon (off)
Light
Hybrid (Molecular Beacon - On)
2003 wels NIAID-Tan kolaboraciaSi samxreT koreis III donis biousafrTxoebis
laboratoriaSi (BSL-3) Catarda kvleva:
rezistentobis warmoqmnis da ganviTarebis Seswavlis mizniT Segrovda 600-ze meti
pirveladi da meoradi rezistentobis MDR/XDR-TB pacientis da maTi
Stamebis genomi da Sedarda baqteriuli da adamianis urTierTqmedebis genetikuri
variantebi;
rezistentul Stamebze metronidazolis efeqturobis dadgenis mizniT aseve Catarda
kvlevebi, romlis drosac klinikuri dinamika CT monacemebiT fasdeboda;
gmadlobT
yuradRebisaTvis