Abstract:
BACKGROUND:Hepatocellular Carcinoma (HCC) is one of the greatest global health burdens because of its uncontrolled cell growth and proliferation, aggressive nature as well as inherited chemoresistance. In spite of different treatment options currently available for HCC, the 5-year relative survival rates for HCC patients with regional and distant stages of the disease are still low, which highlights the urgent need for novel therapeutic strategies for HCC. Recent findings strongly suggest that specific lipid species, such as sphingolipids, play a prominent role in tumorigenesis. OBJECTIVE:We will give an overview of recent literature findings on the role of ceramide metabolism in the pathogenesis and treatment of HCC. RESULTS:HCC is characterised by dysregulation of ceramide metabolism, which could be ascribed to altered activity and expression of ceramide synthases 2, 4 and 6, and acid and alkaline ceramidases 2 and 3, as well as to deregulation of Sphingosine kinases (SphK) 1 and 2 and sphingosine-1- phosphate receptors, in particular, S1PR1. Among them, SphK2 has emerged as a clinically relevant drug target in HCC whose inhibition by ABC294640 is currently being investigated in a clinical trial in patients with advanced HCC. Another promising strategy includes restoration of ceramide levels in HCC tissues, whereby nanoliposomal ceramides, in particular C6-ceramide, has emerged as an effective therapeutic agent against HCC whose safety and recommended dosing is currently being clinically investigated. CONCLUSION:Development of novel drugs specifically targeting ceramide metabolism could provide an enhanced therapeutic response and improved survival outcome in HCC patients.
journal_name
Curr Med Chemjournal_title
Current medicinal chemistryauthors
Grbčić P,Car EPM,Sedić Mdoi
10.2174/0929867326666190911115722subject
Has Abstractpub_date
2020-01-01 00:00:00pages
6611-6627issue
39eissn
0929-8673issn
1875-533Xpii
CMC-EPUB-100726journal_volume
27pub_type
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