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Pregled bibliografske jedinice broj: 1001785

Zbornik radova

Autori: Gregorić, Maja; Trnski, Diana; Sabol, Maja; Ozretić, Petar; Levanat, Sonja; Rinčić, Nikolina; Kalafatić, Držislav; Musani, Vesna
Naslov: Survivin isoform expresion in GLI1-3 knock-out ovarian carcinoma cell lines
( Survivin isoform expresion in GLI1-3 knock-out ovarian carcinoma cell lines )
Izvornik: Libri Oncologici : Croatian Journal of Oncology, Vol. 46 No. Supplement 1, 2018. / Vrdoljak, Danko Velimir (ur.). - Zagreb : Klinika za tumore, Klinički bolnički centar Sestre milosrdnice , 2018. 65-65.
ISSN: 0300-8142
Skup: "HDIR-5: Translating Science to Medicine - Targets and Therapeutics" - Fifth Meeting of the Croatian Association for Cancer Research with International Participation
Mjesto i datum: Zagreb, Hrvatska, 08-10.11.2018.
Ključne riječi: BIRC5 ; survivin ; isoforms ; ovarian cancer ; expression
( BIRC5 ; survivin ; isoforms ; ovarian cancer ; expression )
Sažetak:
Ovarian cancer is the eighth most common tumor type in women worldwide, and the most lethal female gynecological malignancy with almost no difference in mortality between developed and developing countries. Because it remains asymptomatic for long time it usually gets diagnosed in late stages when treatment options are limited and overall survival remains poor. Hedgehog-GLI (HH-GLI) signaling pathway is one of the major developmental pathways and is responsible for the formation of various tissues and organs, including ovaries. In the adult organism it is involved in the stem cell maintenance, tissue homeostasis and in the immune response. Survivin is an inhibitor of apoptosis protein (IAP) that plays a role in multiple processes, including proliferation and cell survival. It is widely expressed during development, but rarely expressed in adult tissues. Survivin expression in tumors has been associated with aggressive behavior, resistance to radiation and chemotherapy and poor survival. Survivin has at least 5 different splice variants (wild type, 2alpha, 2B, 3B and deltaEx3). The expression levels of various survivin isoforms have been associated with clinicpathologic characteristics in some cancers. Survivin has been recently shown to be a direct target of HH/GLI signaling pathway and has several binding sites for GLI transcription factors in its promoter region. The aim of this study was to investigate the expression of survivin isoforms in SKOV-3 ovarian carcinoma cell line with GLI1-3 knock-outs (KO) treated with GANT-61 pathway inhibitor. GLI1 and GLI2 KO lines show downregulation of survivin isoforms, while GLI3 KO has no effect on expression of survivin isoforms. GLI1 KO regulates expression of all five analyzed isoforms, while GLI2 affects only 3B and deltaEx3 isoforms. Combined treatment of KO cell lines with GANT-61 shows additional inhibitory effect of GANT-61 on wild type, 2alpha and 2B isoforms, suggesting that these isoforms are regulated by both GLI1 and GLI2. On the other hand, 3B and deltaEx3 isoforms are not additionally downregulated by GANT-61 treatment, suggesting a different regulatory mechanism for these two isoforms.
Rad je indeksiran u
bazama podataka:
Scopus
Vrsta sudjelovanja: Poster
Vrsta prezentacije u zborniku: Sažetak
Vrsta recenzije: Međunarodna recenzija
Projekt / tema: HRZZ-IP-2016-06-1268
Izvorni jezik: eng
Kategorija: Znanstveni
Znanstvena područja:
Biologija,Temeljne tehničke znanosti
URL Internet adrese: https://hrcak.srce.hr/file/305661
Upisao u CROSBI: Petar Ozretić (Petar.Ozretic@irb.hr), 17. Svi. 2019. u 14:44 sati



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