2020
A Lipidomic Signature Complements Stemness Features Acquisition in Liver Cancer Cells
SERNA, I. M. R., I. ROMITO, A. MAUGERI, Oriana LO RE, Sebastiano GIALLONGO et. al.Základní údaje
Originální název
A Lipidomic Signature Complements Stemness Features Acquisition in Liver Cancer Cells
Autoři
SERNA, I. M. R., I. ROMITO, A. MAUGERI, Oriana LO RE (380 Itálie), Sebastiano GIALLONGO (380 Itálie, domácí), G. MAZZOCCOLI, J. A. OBEN, G. LI VOLTI, T. MAZZA, A. ALISI a Manlio VINCIGUERRA (380 Itálie, garant)
Vydání
International Journal of Molecular Sciences, Basel, Multidisciplinary Digital Publishing Institute, 2020, 1422-0067
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10608 Biochemistry and molecular biology
Stát vydavatele
Švýcarsko
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 5.923
Kód RIV
RIV/00216224:14110/20:00117463
Organizační jednotka
Lékařská fakulta
UT WoS
000594195100001
Klíčová slova anglicky
FAK; HCC; stemness; cancer stem cells
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 21. 7. 2021 10:27, Mgr. Tereza Miškechová
Anotace
V originále
Lipid catabolism and anabolism changes play a role in stemness acquisition by cancer cells, and cancer stem cells (CSCs) are particularly dependent on the activity of the enzymes involved in these processes. Lipidomic changes could play a role in CSCs' ability to cause disease relapse and chemoresistance. The exploration of lipid composition and metabolism changes in CSCs in the context of hepatocellular cancer (HCC) is still incomplete and their lipidomic scenario continues to be elusive. We aimed to evaluate through high-throughput mass spectrometry (MS)-based lipidomics the levels of the members of the six major classes of sphingolipids and phospholipids in two HCC cell lines (HepG2 and Huh-7) silenced for the expression of histone variant macroH2A1 (favoring stemness acquisition), or silenced for the expression of focal adhesion tyrosine kinase (FAK) (hindering aggressiveness and stemness). Transcriptomic changes were evaluated by RNA sequencing as well. We found definite lipidomic and transcriptomic changes in the HCC lines upon knockdown (KD) of macroH2A1 or FAK, in line with the acquisition or loss of stemness features. In particular, macroH2A1 KD increased total sphingomyelin (SM) levels and decreased total lysophosphatidylcholine (LPC) levels, while FAK KD decreased total phosphatidylcholine (PC) levels. In conclusion, in HCC cell lines knocked down for specific signaling/epigenetic processes driving opposite stemness potential, we defined a lipidomic signature that hallmarks hepatic CSCs to be exploited for therapeutic strategies.