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001-es BibID:	BIBFORM087329
035-os BibID:	(WOS)000544832200001 (Scopus)85087311712
Első szerző:	Koroknai Viktória (molekuláris biológus)
Cím:	Gene Expression Signature of BRAF Inhibitor Resistant Melanoma Spheroids / Koroknai Viktoria, Patel Vikas, Szász István, Ádány Róza, Balazs Margit
Dátum:	2020
ISSN:	1219-4956 1532-2807
Megjegyzések:	In vitro cell cultures are frequently used to define the molecular background of drug resistance. The majority of currently available data have been obtained from 2D in vitro cultures, however, 3D cell culture systems (spheroids) are more likely to behave similarly to in vivo conditions. Our major aim was to compare the gene expression signature of 2D and 3D cultured BRAFV600E mutant melanoma cell lines. We successfully developed BRAF-drug resistant cell lines from paired primary/metastatic melanoma cell lines in both 2D and 3D in vitro cultures. Using Affymetrix Human Gene 1.0 ST arrays, we determined the gene expression pattern of all cell lines. Our analysis revealed 1049 genes (562 upregulated and 487 downregulated) that were differentially expressed between drug-sensitive cells grown under different cell cultures. Pathway analysis showed that the differently expressed genes were mainly associated with the cell cycle, p53, and other cancer-related pathways. The number of upregulated genes (72 genes) was remarkably fewer when comparing the resistant adherent cells to cells that grow in 3D, and were associated with cell adhesion molecules and IGF1R signalling. Only 1% of the upregulated and 5.6% of the downregulated genes were commonly altered between the sensitive and the resistant spheroids. Interestingly, we found several genes (BNIP3, RING1 and ABHD4) with inverse expression signature between sensitive and resistant spheroids, which are involved in anoikis resistance and cell cycle regulation. In summary, our study highlights gene expression alterations that might help to understand the development of acquired resistance in melanoma cells in tumour tissue.
Tárgyszavak:	Orvostudományok Egészségtudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk
Megjelenés:	Pathology & Oncology Research. - 26 : 4 (2020), p. 2557-2566. -
További szerzők:	Patel, Vikas (1994-) (Molekuláris biológus) Szász István (1985-) (Ph.D hallgató) Ádány Róza (1952-) (megelőző orvostan és népegészségtan szakorvos) Balázs Margit (1952-) (sejtbiológus, molekuláris genetikus)
Pályázati támogatás:	GINOP-2.3.2-15-2016-00005 GINOP K-112327 OTKA ÚNKP-19-3 Egyéb
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
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