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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Genų, susijusių su apoptoze ir dnr pažaidų atitaisymu, metilinimo ypatumai skrandžio onkogenezės pakopiniame procese / Characteristics of apoptosis and dna repair related genes methylation in stepwise gastric cancerogenesis process

Kupčinskaitė, Rita, Kupčinskaitė-Noreikienė, Rita 19 September 2013 (has links)
DNR pažaidų atitaisymas ir apoptozė - dvi pagrindinės grandys, palaikančios žmogaus genomo vientisumą. Sutrikus šiems procesams, ląstelė išgyvena, nepaisant susikaupusių DNR pažaidų ir sudaromas pagrindas tolesnei transformacijai. Tyrimu įvertinome DNR pažaidų atitaisymo funkcijoje dalyvaujančių (hMLH1, MGMT) ir su apoptoze susijusių (DAPK-1, CASP8) genų epigenetinio reguliavimo - metilinimo aspektus pakopiniame skrandžio onkogenezės procese. Šio mokslinio tyrimo metu pirmą kartą buvo nustatytas skirtingas hMLH1 geno metilinimo dažnis atskirose skrandžio anatominėse dalyse atrofiniu pangastritu sergančiųjų audinyje. Įvertinta, kad hMLH1 geno metilinimas sergančiųjų skrandžio vėžiu aplinkiniame nenavikiniame audinyje sietinas su pacientų amžiumi. Išgyvenamumo analizės rezultatai parodė, kad MGMT geno metilinimas agresyvios skrandžio vėžio histologinės formos atveju yra geresnės prognozės rodiklis. Tyrimo metu nustatėme mokslinėje periodikoje neaprašytų tirtųjų genų metilinimo derinių sąsajų su klinikiniais, morfologiniais ir prognoziniais onkologinės ligos ypatumais. / DNA repair and apoptosis are two main pathways supporting the integrity of human genome. After the disturbance of these processes the cell survives, despite the accumulation of DNA lesions, and in this way a basis for a subsequent transformation is formed. In our research we evaluated the epigenetic regulation - methylation - aspects of genes participating in DNA repair function (hMLH1 and MGMT) and also of apoptosis-related genes (DAPK-1, CASP8) in relation to a stepwise gastric oncogenesis process. During this investigation a different hMLH1 gene methylation observation frequency in tissues obtained from separate anatomical parts of the stomach in atrophic pangastritis patients was determined for the first time. It was estimated, that hMLH1 gene methylation in tumor-surrounding non-cancerous tissue in gastric cancer patients could be associated with patient age. Results of survival analysis indicated that MGMT gene methylation is an indicator of better prognosis in case of diffuse form of gastric cancer. During the study we determined some additional associations (not described in previous publications) between methylation combinations of analyzed genes and clinical, morphological and prognostic features of oncological illness.
2

Calmodulin binding to cellular FLICE like inhibitory protein modulates Fas-induced signaling and tumorigenesis in cholangiocarcinoma

Pawar, Pritish Subhash. January 2008 (has links) (PDF)
Thesis (Ph. D.)--University of Alabama at Birmingham, 2008. / Title from first page of PDF file (viewed Sept. 19, 2008). Includes bibliographical references.
3

cFLIP regulates Fas-induced apoptosis and pro-inflammatory gene expression in human vascular smooth muscle cells /

Dishmon, Monja. January 2006 (has links)
Thesis (Ph. D.)--University of Washington, 2006. / Vita. Includes bibliographical references (leaves 71-91).

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