Obutoffaali buno obwa Helper T bwe buruwa? Mu ngeri ennyangu...
Kale, obutoffaali bwa Helper T kye kika ky’obutoffaali obukulu mu baserikale baffe abaserikale b’omubiri. Teebereza nti okufaananako eggye erilwanirira ensi yaffe, tulina enkola ennene munda mu mubiri gwaffe okutukuuma endwadde, nga kino kye tuyita abaserikale b’omubiri . Obutoffaali buno obuyitibwa T be baserikale ab’enjawulo mu nkola eyo. Mu kiseera kino, obutoffaali bwa Helper T kibiina ekikola omulimu ogw’enjawulo ennyo. Omulimu omukulu ogw’obutoffaali buno kwe kumanya yinfekisoni, kwe kugamba, obuwuka obuleeta obulwadde, bwe buyingira mu mubiri gwaffe, n’oluvannyuma okwegatta n’obutoffaali obulala obuziyiza endwadde ne bubukubiriza okulwanyisa yinfekisoni eyo (okubukola) . Nga omuduumizi ng’olutalo lutandika. Obutoffaali buno obwa Helper T butondebwa, kwe kugamba, bukula, mu nseke entono eyitibwa thymus mu kitundu eky’okungulu eky’ekifuba kyaffe. Kino kiringa essomero eriwa obutoffaali buno okutendekebwa okw’enjawulo. Mu thymus obutoffaali buno mwe bukula ne buyiga okukola emirimu gyabwo obulungi. Waliwo ebika by’obutoffaali bwa T ebiwerako. Ng’oggyeeko obutoffaali bwa T obuyamba, waliwo ebika ebirala ebikulu ebiwerako:- Cytotoxic T cells : Zino ze zirwanyisa butereevu n’okusaanyaawo obutoffaali obulina akawuka, okufaananako n’abajaasi abalumba mu magye.
- Regulatory T cells : Omulimu gwazo kwe kufuga emirimu gy’abaserikale b’omubiri nga kyetaagisa, n’oluusi okugikomya okukola ennyo.
- Obutoffaali bwa NKT: Buno buyamba okulongoosa abaserikale b’omubiri okutwaliza awamu.
Lwaki obutoffaali buno obwa Helper T bukulu nnyo eri emibiri gyaffe? (Omulimu gw’obusimu obuziyiza endwadde (Adaptive Immunity)
Kati, laba, waliwo ebitundu bibiri eby’abaserikale b’omubiri gwaffe. Ekimu ye Innate Immunity , nga eno y’enkola y’okwekuuma etuweebwa okuva lwe twazaalibwa era okutwalira awamu ekola ku buwuka bwonna. Endala ye Adaptive Immunity . Kino kya njawulo nnyo. Kubanga eno y’etegeera obuwuka obw’enjawulo obuyingira mu mubiri gwaffe n’ayiga okubulwanyisa mu ngeri ey’enjawulo. Kiringa bw’oyolekagana n’omulabe y’omu omulundi ogw’okubiri, oba weetegese bulungi okusinga bwe wali omulundi ogwasooka. Eyo gy’ogenda.Abazira b'obusimu obuziyiza endwadde ( adaptive immunity ) be butoffaali buno obuyamba T cells . Mu butuufu, zeenyigira mu nkola z’abaserikale b’omubiri ezisinga obungi ezikyukakyuka. Okusinga zikola ebika by’obutoffaali bibiri: 1. Obutoffaali bwa B: Obutoffaali buno obwa B bwe bukola eddagala ery’enjawulo eriyitibwa antibodies mu mibiri gyaffe. Obuziyiza buno bulinga ebyokulwanyisa eby’enjawulo. Zikola obutoffaali obuziyiza endwadde obukwata ku buli buwuka obuleeta endwadde era buyamba okusaanyaawo obuwuka obwo. 2. Cytotoxic T cells: Nga bwe kyayogeddwako emabegako, zino ze zirwanyisa obutereevu yinfekisoni ne zisaanyaawo obutoffaali obulina obuwuka. Mu ngeri ennyangu, obutoffaali bwa T obuyambi bulinga abakulembeze abagamba obutoffaali obulala nti, "Hey, waliwo ekizibu! Buli omu atuuke ku mulimu!"Waliwo ebika by’obutoffaali bwa T obuyamba?
Yee, obutoffaali buno obuyamba T bwe bumala okuzuula yinfekisoni, butandika okukola nga bwawulwamu ebika ebirala bibiri. Bino bye bino:- Obutoffaali obuyamba TH1: Obutoffaali buno buweereza obubaka obw’enjawulo obw’eddagala (ka tubuyite ekiragiro) okukola ekika ky’obutoffaali obuyitibwa macrophage . Macrophages ziringa ebikung’aanya kasasiro mu mibiri gyaffe. "Zmira" ebintu n'obuwuka obugwira okuva ebweru ne ziyonja omubiri. Obutoffaali bwa TH1 era bukola obutoffaali bwa T obutta obuwuka obuyitibwa cytotoxic T cells obwogeddwako emabegako.
- Obutoffaali obuyamba TH2: Obutoffaali buno bukola obutoffaali bwa B nga bufulumya obubaka obw’enjawulo obw’eddagala. Olwo obutoffaali bwa B butandika okukola obutoffaali obuziyiza endwadde . Si ekyo kyokka, naye obutoffaali buno obwa TH2 era buleeta ebintu ng’okusesema , okusesema, n’ekiddukano , oluusi ebiyamba emibiri gyaffe okugoba ebintu ebigwira. Obuziyiza obukwatagana ne alergy ezimu nabwo bukolebwa nga buyambibwako obutoffaali buno obwa TH2.
Teebereza engeri enkola y’omubiri gwaffe ey’okwekuuma gy’ekola mu ngeri enzibu, naye ng’ekola mu ngeri ey’amagezi! Bino byonna bibaawo okutukuuma endwadde .
Obutoffaali buno obuyamba T butuuka butya okukola? (Okukola) .
Eno nayo mboozi nnyuvu nnyo. Obutoffaali bwa T obuyamba bulina ekitundu eky'enjawulo ku ngulu kwabwo ekiyitibwa CD4 receptor . Kino kiringa ekisumuluzo ky’oluggi. Tulina ne molekyu endala ey’enjawulo mu mubiri gwaffe eyitibwa molekyu za MHC class II (Major Histocompatibility Complex II molecules).Molekyulu zino eza MHC class II ze zisooka "okuwulira" nti yinfekisoni oba ekintu ekigwira kiyingidde mu mubiri gwaffe. Olwo, ekirungo kya CD4 ne molekyu ya MHC kiraasi II bikwatagana. Kiba ng’okuteeka ekisumuluzo n’oggulawo oluggi. Wano obutoffaali bwa T obuyambi we butandika okukola . Bwe bumala okukola, obutoffaali buno obuyamba T bufulumya ababaka b’eddagala abayitibwa cytokines . Cytokines zino ze ziweereza obubaka eri obutoffaali obulala obuziyiza endwadde nti, "Twetaaga okutandika olutalo kati!"Obutoffaali bwa Helper T n’obutoffaali bwa Cytotoxic T bukolagana butya?
Bano ababiri balinga ttiimu bbiri ezikolagana. Cytokines ezifulumizibwa obutoffaali bwa T obuyambi ziyamba okukola obutoffaali bwa T obutwa . Kiringa bwebagamba nti, "Okay, kati ssaawa yo, genda okole omulimu gwo!" Olwo obutoffaali bwa T obutta obuwuka bufulumya eddagala lyabwo ery’enjawulo okulwanyisa obulwadde buno. Era zisobola okutegeera obutoffaali obulina obuwuka, ne butta butereevu, n’okukomya obuwuka obutasaasaana. Laba engeri okukolagana mu ttiimu gye kuli okunene!Wa mu mubiri gwaffe obutoffaali buno obuyamba obuyitibwa T cells obusinga obungi?
Obutoffaali bwa T busooka kutandika okukula mu kitundu ky'amagumba gaffe ekiringa sipongi ekiyitibwa obusigo bw'amagumba . Olwo bwe ziba ento, kwe kugamba, bwe zikula, zigenda mu nseke eyitibwa thymus . Nga bwe kyayogeddwako emabegako, thymus eringa "essomero" eri obutoffaali buno obwa T. Awo obutoffaali buno we bukulira era nga butendekeddwa bulungi. Ekikulu ennyo, thymus eyigiriza obutoffaali buno obwa T okumanya ddala obutoffaali ki mu mubiri gwaffe obwaffe n’obuwuka obuleeta endwadde obuvudde ebweru . Kino kikulu nnyo, bwe kitaba ekyo zisobola okulumba obutoffaali bwaffe. Okutendekebwa bwe kumala, obutoffaali buno butambula mu mubiri gwaffe gwonna okuva mu thymus. Waliwo obutoffaali bwa T bungi mu nkola yaffe yonna ey'amazzi . Okusingira ddala, obutoffaali bwa T obuyamba busobola okusangibwa mu bungi mu:- Obusigo bw’amagumba
- Ebyenda
- Amawuggwe
- Ensigo - Bw’oba n’omusujja, zino zizimba ne zikuleetera ebizimba mu bulago ne mu nnyindo.
- Ensigo z’omu lubuto
- Tonsils - Oyinza okuba nga wali owulidde ku tonsils mu mumiro gwo.
Endwadde ki ezikwata obutoffaali bwa Helper T?
Ebyembi, waliwo n’endwadde ezikosa enkola y’obutoffaali buno obuyamba ennyo T. Ebimu ku byo bye bino:- Endwadde z’abaserikale b’omubiri:Eno mbeera abaserikale baffe bennyini mwe balumba obutoffaali bwaffe obulamu. Enkyukakyuka mu nkola y’obutoffaali bwa T obuyambi ziyinza okuba nga ze zivuddeko.
- Acute lymphocytic leukemia: Kino kika kya kookolo atandikira mu musaayi n’obusimu bw’amagumba.
- Adult Hodgkin lymphoma: Kino kika kya kookolo atandikira mu nkola y’amazzi.
- Akawuka ka siriimu: Kano kawuka akalumba obutoffaali obweru naddala obuyitibwa CD4 helper T cells. Kino kiyinza okunafuya abaserikale b'omubiri ne kivaamu embeera eyitibwa mukenenya .
- Job syndrome: Buno bulwadde bwa baserikale b’omubiri obutatera kulabika nnyo obuleeta yinfekisoni enfunda eziwera.
- Thymic aplasia: Eno mbeera ebeerawo ng’omwana azaalibwa nga thymus tekula bulungi. Obutabeera na thymus entuufu kivaamu okukula kw’obutoffaali bwa T okukosebwa.
Ebintu ebyangu bye tusobola okukola okukuuma abaserikale b’omubiri nga balamu bulungi
Waliwo ebintu ebitonotono ebyangu bye tuyinza okukola okukuuma abaserikale baffe bonna abaserikale, omuli n’obutoffaali bwaffe obuyamba, nga bunywevu era nga bulamu bulungi. Okugoberera bino kijja kutuyamba nnyo mu kutukuuma endwadde.- Kkomya okunywa omwenge: Weewale omwenge nga bwe kisoboka, oba gukozese mu bungi obutono ennyo.
- Lya emmere ennungi: Lya emmere erimu ebibala, enva endiirwa, emmere ey’empeke, ebirungo ebizimba omubiri ebitaliimu masavu n’amasavu amalungi.
- Dduyiro buli kiseera: Kola ebintu ng’emirimu gy’omukka oguzimba amaanyi, okwongera okukyukakyuka, n’okussa ennyo buli lunaku.
- Weebake bulungi: Weebake waakiri essaawa musanvu ku munaana buli kiro.
- Weewale okunywa sigala: Bw’oba onywa sigala, lekera awo. Bw’oba watandika dda, totandika.
- Okunaaba engalo enfunda eziwera: Naaba bulungi mu ngalo ne ssabbuuni n’amazzi okwekuuma obuwuka.
Ekintu ekisinga obukulu okujjukira (Take-Home Message)
Kale, kati otegedde engeri obutoffaali bwa Helper T gye buli obukulu mu baziyiza baffe. Balinga abakulembeze abagezi ab’amagye agakuuma omubiri gwaffe. Obulwadde bwe bujja, obutoffaali buno obwa Helper T bwe bubuzuula era awamu n’obutoffaali obulala obulwanyisa (cytotoxic T cells ne B cells), ne bukulembera okulwanyisa yinfekisoni eyo.Tekyewuunyisa nti emibiri gyaffe girina enkola eyeewuunyisa bwetyo etukuuma, wadde nga tetugimanyi? N’olwekyo, era tusaanidde okwagala okukuuma abaserikale bano ab’omuwendo nga bali mu mbeera nnungi. Engeri esinga obulungi ey’okukola ekyo kwe kubeera n’obulamu obulungi. Olwo obutoffaali bwaffe obuyamba T nabwo busobola okukola omulimu gwabwo obulungi!Bw’oba olina ekibuuzo ekirala kyonna ku nsonga eno, tolwawo kubuuza musawo. Sigala nga oli mulamu bulungi!
Obusimu obuziyiza endwadde, obutoffaali bwa T, obutoffaali bwa T obuyambi, obulamu, endwadde, yinfekisoni, okwekuuma omubiri
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