Stanovení exprese vybraných proteinů apoptotické kaskády v lidském endometriu
Stanovení exprese vybraných proteinů apoptotické kaskády v lidském endometriu
diploma thesis (DEFENDED)

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http://hdl.handle.net/20.500.11956/32189Identifiers
Study Information System: 66591
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- Kvalifikační práce [17187]
Author
Advisor
Referee
Vondrejs, Vladimír
Faculty / Institute
Faculty of Science
Discipline
Genetics, Molecular Biology and Virology
Department
Department of Physiology
Date of defense
20. 9. 2010
Publisher
Univerzita Karlova, Přírodovědecká fakultaLanguage
English
Grade
Very good
Keywords (Czech)
apoptosa v endometriu, pro- a anti-apoptotické proteiny, kaspasy, PARPKeywords (English)
endometrial apoptosis, pro- and anti-apototic proteins, caspases, PARPApoptosa je programovan a bun e cn a smrt, kter a je vyvol ana nap r. z ava zn ymi mutacemi v DNA nebo bun e cn ym stresem. Hraje d ule zitou roli v udr zov an tk a nov e homeost azy pomoc eliminace star ych, nepot rebn ych nebo po skozen ych bun ek. U castn se j velk e mno zstv molekul, z nich z nejd ule zit ej s jsou z astupci protein u Bcl- 2 rodiny a v ykonn e proteiny apoptosy, kaspasy, zodpov edn e za vlastn proveden apoptosy. Selh an regulace apoptosy m u ze zp usobit radu malignit, v cetn e n adorov e transformace. Lidsk e endometrium je speci ck a tk a n, ve kter e se apoptosa vyskytuje cyklicky. P redlo zen a pr ace se zab yv a studiem exprese protein u Bcl-2, Bax, Bad. Bid, pro-kaspasy-3, kaspasy-3 a PARP v norm aln m, atro ck em, hyperplastick em a kancerozn m (stadia I a II dle FIGO) endometriu. V ysledky t eto studie nazna cuj , ze proteiny Bid a Bad mohou b yt jedn emi z potenci aln ch zlomov ych bod u v procesu n adorov e transformace bu nky, na co z poukazuje i opa cn y vzorec jejich exprese v hyperplastick em a kancerozn m endometriu.
Apoptosis is a process of the programmed cell death in response to severe mutations in DNA or cell stress. Apoptosis plays a key role in tissue maintenance by eliminating senescent and damaged cells. Various molecules take part in apoptosis, main participants are Bcl-2 protein family and caspases. The latter one are responsible for apoptosis execution, while Bcl-2 protein family regulates apoptotic pathway. Failure of this regulation may cause several pathologies, including development of neoplastic tissue. Human endometrium is a speci c tissue, in which apoptosis is present in cycling pattern. Present study shows expression level of Bcl-2, Bax, Bad, Bid, pro-caspase-3, caspase-3 and PARP in normal, atrophic, hyperplastic and cancerous (Grade I and II) human endometrium. Bad and Bid proteins can be possible breakpoints in neoplastic transfer due to opposit expression in cancerous and hyperplastic endometrium.