Repurposing Antibacterial AM404 As a Potential Anticancer Drug for Targeting Colorectal Cancer Stem-Like Cells
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Tumour-promoting inflammation is involved in colorectal cancer (CRC) development and therapeutic resistance. However, the antibiotics and antibacterial drugs and signalling that regulate the potency of anticancer treatment upon forced differentiation of cancer stem-like cell (CSC) are not fully defined yet. We screened an NIH-clinical collection of the small-molecule compound library of antibacterial/anti-inflammatory agents that identified potential candidate drugs targeting CRC-SC for differentiation. Selected compounds were validated in both in vitro organoids and ex vivo colon explant models for their differentiation induction, impediment on neoplastic cell growth, and to elucidate the mechanism of their anticancer activity. We initially focused on AM404, an anandamide uptake inhibitor. AM404 is a metabolite of acetaminophen with antibacterial activity, which showed high potential in preventing CRC-SC features, such as stemness/de-differentiation, migration and drug-resistance. Furthermore, AM404 suppressed the expression of E3-ligase, where AM404 sensitivity was mimicked by -knockout. This study uncovers a new molecular mechanism for AM404-altering FBXL5 oncogene which mediates chemo-resistance and CRC invasion, thereby proposes to repurpose antibacterial AM404 as an anticancer agent.
Advancements in 3D In Vitro Models for Colorectal Cancer.
Vitale S, Calapa F, Colonna F, Luongo F, Biffoni M, De Maria R Adv Sci (Weinh). 2024; 11(32):e2405084.
PMID: 38962943 PMC: 11348154. DOI: 10.1002/advs.202405084.
Advances in tumor vascular growth inhibition.
Zhang K, Shi Y, Jin Z, He J Clin Transl Oncol. 2024; 26(9):2084-2096.
PMID: 38504070 DOI: 10.1007/s12094-024-03432-5.
Current trends and future prospects of drug repositioning in gastrointestinal oncology.
Fatemi N, Karimpour M, Bahrami H, Zali M, Chaleshi V, Riccio A Front Pharmacol. 2024; 14:1329244.
PMID: 38239190 PMC: 10794567. DOI: 10.3389/fphar.2023.1329244.
Colorectal Cancer Stem Cells and Targeted Agents.
Zhao H, Han R, Wang Z, Xian J, Bai X Pharmaceutics. 2023; 15(12).
PMID: 38140103 PMC: 10748092. DOI: 10.3390/pharmaceutics15122763.
Mui M, Clark M, Vu T, Clemons N, Hollande F, Roth S Langenbecks Arch Surg. 2023; 408(1):392.
PMID: 37816905 PMC: 10564805. DOI: 10.1007/s00423-023-03133-7.