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    UID:
    (DE-627)1803201223
    Content: Siliņa K. 2010. Pretvēža humorālās atbildes antigēni: imunogenitātes iemesli un nozīme audzēju terapijā. Latvijas Universitāte, Rīga Promocijas darba mērķis bija atrast jaunus terapeitiski nozīmīgus audzēju antigēnus, molekulāri un imunoloģiski raksturojot humorālo antigēnu kolekciju, kas satur 1328 melanomas, kuņģa, krūts un prostatas audzēju šūnu proteīnus un SPAG grupas antigēnus. Tika atrasti 9 jauni dzimumšūnu asociēti antigēni, kas ekspresēti arī dažādos audzējos, no kuriem audzējos biežāk sastopamie ir LRRC50, ESCO1 un SPAG6. Bez tam, tika atrasta jauna audzēju antigēnu kategorija, kas veidojas, audzēju šūnās producējot sēklinieku specifiskus transkriptu variantus, alternatīvā splaisinga regulācijas kļūdu rezultātā. Lai noteiktu T šūnu spēju reaģēt pret šiem antigēniem, tika izstrādāta metodika CD4+ un CD8+ T šūnu izolēšanai no asinīm, T šūnu in vitro pre-sensitizācijai un antigēn-specifisko T šūnu noteikšanai, izmantojot standartizētu ELISPOT testu, kas parādīja dabīgas SPAG8 specifiskas CTL atbildes veidošanos kuņģa vēža pacientā. ; Siliņa K. 2010. Humoral antigens in cancer: the basis of immunogenicity and relevance for clinical application. University of Latvia, Riga The major goal of this study was to find novel therapeutically significant tumour antigens by molecular and immunological characterisation of a collection of 1328 humoral antigens comprising proteins from melanoma, gastric, breast and prostate cancer and members of SPAG antigen group. 9 novel germ cell-associated antigens were identified with upregulation in cancers; LRRC50, ESCO1, and SPAG6 being the most frequently expressed in tumours. Furthermore, this study revealed a novel category of tumour antigens derived from testis-specific splice variants that are produced in cancer cells as a result of alternative splicing deregulation. To examine T cell responses against these antigens, a methodology for the isolation of CD4+ and CD8+ T cells from patients' blood, in vitro pre-sensitization of T cells and detection of antigen-specific T cell responses by ELISPOT was elaborated and revealed the formation of naturally occurring SPAG8-specific CTL response in a gastric cancer patient.
    Note: Dissertation Latvijas Universitāte 2011
    Language: Undetermined
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