SERNA, I. M. R., I. ROMITO, A. MAUGERI, Oriana LO RE, Sebastiano GIALLONGO, G. MAZZOCCOLI, J. A. OBEN, G. LI VOLTI, T. MAZZA, A. ALISI and Manlio VINCIGUERRA. A Lipidomic Signature Complements Stemness Features Acquisition in Liver Cancer Cells. International Journal of Molecular Sciences. Basel: Multidisciplinary Digital Publishing Institute, 2020, vol. 21, No 22, p. 1-17. ISSN 1422-0067. Available from: https://dx.doi.org/10.3390/ijms21228452.
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Basic information
Original name A Lipidomic Signature Complements Stemness Features Acquisition in Liver Cancer Cells
Authors SERNA, I. M. R., I. ROMITO, A. MAUGERI, Oriana LO RE (380 Italy), Sebastiano GIALLONGO (380 Italy, belonging to the institution), G. MAZZOCCOLI, J. A. OBEN, G. LI VOLTI, T. MAZZA, A. ALISI and Manlio VINCIGUERRA (380 Italy, guarantor).
Edition International Journal of Molecular Sciences, Basel, Multidisciplinary Digital Publishing Institute, 2020, 1422-0067.
Other information
Original language English
Type of outcome Article in a journal
Field of Study 10608 Biochemistry and molecular biology
Country of publisher Switzerland
Confidentiality degree is not subject to a state or trade secret
WWW URL
Impact factor Impact factor: 5.923
RIV identification code RIV/00216224:14110/20:00117463
Organization unit Faculty of Medicine
Doi http://dx.doi.org/10.3390/ijms21228452
UT WoS 000594195100001
Keywords in English FAK; HCC; stemness; cancer stem cells
Tags 14110513, rivok
Tags International impact, Reviewed
Changed by Changed by: Mgr. Tereza Miškechová, učo 341652. Changed: 21/7/2021 10:27.
Abstract
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.
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