J 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

Štítky

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.