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Xu Y, Feng X, Zhou Q, Jiang W, Dai Y, Jiang Y, Liu X, Li S, Wang Y, Wang F, Li A, Zheng C. Novel Small Molecular Compound AE-848 Potently Induces Human Multiple Myeloma Cell Apoptosis by Modulating the NF-κB and PI3K/Akt/mTOR Signaling Pathways. Onco Targets Ther 2020; 13:13063-13075. [PMID: 33376355 PMCID: PMC7764792 DOI: 10.2147/ott.s270090] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Accepted: 12/04/2020] [Indexed: 12/13/2022] Open
Abstract
Background We aimed to investigate the anti-multiple myeloma (MM) activity of the new small molecular compound AE-848 (5-bromo-2-hydroxyisophthalaldehyde bis[(1-methyl-1H-benzimidazol-2-yl)hydrazone]) and its underlying anti-MM mechanism. Methods Cell viability and apoptosis were detected and quantified by using MTT and flow cytometry, respectively. JC-1 dye-related techniques were used to assess mitochondrial membrane potential (MMP). Western blotting was applied to detect the expression of NF-κB and PI3K/Akt/mTOR pathway-associated proteins. The in vivo activity of AE-848 against MM was evaluated in a MM mouse model. Results Application of AE-848 into the in vitro cell culture system significantly reduced the viability and induced apoptosis of the MM cell lines, RPMI-8226 and U266, in a dose- and time-dependent manner, respectively. JC-1 dye and Western blotting analysis revealed that AE-848 induced the cleavage of caspase-8, caspase-3, and poly ADP-ribose polymerase (PARP), resulting in loss of mitochondrial membrane potential (MMP). Both the NF-κB and PI3K/AKT/mTOR signaling pathways were involved in AE-848-induced apoptosis of U266 and RPMI8226 cells. Moreover, AE-848 leads to cell cycle arrest of MM cells. Its anti-MM efficacy was further confirmed in a xenograft model of MM. AE-848 administration significantly inhibited MM tumor progression and prolonged the survival of MM-bearing mice. More importantly, our results demonstrated that AE-848 markedly induced primary MM cell apoptosis. Conclusion Our results for the first time showed that the small compound AE-848 had potent in vitro and in vivo anti-myeloma activity, indicating that AE-848 may have great potential to be developed as a drug for MM treatment.
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Affiliation(s)
- Yaqi Xu
- Department of Hematology, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, People's Republic of China.,Institute of Biotherapy for Hematological Malignancies, Shandong University, Jinan, Shandong, People's Republic of China.,Shandong University-Karolinska Institute Collaboration Laboratory for Stem Cell Research, Jinan, Shandong, People's Republic of China
| | - Xiaoli Feng
- Clinical Laboratory, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, People's Republic of China
| | - Qian Zhou
- Department of Hematology, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, People's Republic of China.,Institute of Biotherapy for Hematological Malignancies, Shandong University, Jinan, Shandong, People's Republic of China.,Department of Hematology, Linyi Central Hospital, Linyi, Shandong, People's Republic of China
| | - Wen Jiang
- Department of Hematology, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, People's Republic of China.,Institute of Biotherapy for Hematological Malignancies, Shandong University, Jinan, Shandong, People's Republic of China.,Institute of Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, People's Republic of China
| | - Yibo Dai
- Department of Hematology, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, People's Republic of China.,Institute of Biotherapy for Hematological Malignancies, Shandong University, Jinan, Shandong, People's Republic of China.,Shandong University-Karolinska Institute Collaboration Laboratory for Stem Cell Research, Jinan, Shandong, People's Republic of China
| | - Yang Jiang
- Department of Hematology, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, People's Republic of China.,Institute of Biotherapy for Hematological Malignancies, Shandong University, Jinan, Shandong, People's Republic of China.,Shandong University-Karolinska Institute Collaboration Laboratory for Stem Cell Research, Jinan, Shandong, People's Republic of China
| | - Xiaoli Liu
- Department of Hematology, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, People's Republic of China.,Institute of Biotherapy for Hematological Malignancies, Shandong University, Jinan, Shandong, People's Republic of China.,Shandong University-Karolinska Institute Collaboration Laboratory for Stem Cell Research, Jinan, Shandong, People's Republic of China
| | - Shuo Li
- Department of Hematology, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, People's Republic of China.,Institute of Biotherapy for Hematological Malignancies, Shandong University, Jinan, Shandong, People's Republic of China.,Binzhou Medical University Hospital, Binzhou, Shandong, People's Republic of China
| | - Yongjing Wang
- Department of Hematology, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, People's Republic of China.,Institute of Biotherapy for Hematological Malignancies, Shandong University, Jinan, Shandong, People's Republic of China.,Shandong University-Karolinska Institute Collaboration Laboratory for Stem Cell Research, Jinan, Shandong, People's Republic of China
| | - Fang Wang
- Institute of Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, People's Republic of China
| | - Ai Li
- Department of Hematology, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, People's Republic of China.,Institute of Biotherapy for Hematological Malignancies, Shandong University, Jinan, Shandong, People's Republic of China.,Shandong University-Karolinska Institute Collaboration Laboratory for Stem Cell Research, Jinan, Shandong, People's Republic of China
| | - Chengyun Zheng
- Department of Hematology, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, People's Republic of China.,Institute of Biotherapy for Hematological Malignancies, Shandong University, Jinan, Shandong, People's Republic of China.,Shandong University-Karolinska Institute Collaboration Laboratory for Stem Cell Research, Jinan, Shandong, People's Republic of China
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