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Hsu CM, Yen CH, Wang SC, Liu YC, Huang CT, Wang MH, Chuang TM, Ke YL, Yeh TJ, Gau YC, Du JS, Wang HC, Cho SF, Tsai Y, Hsiao CE, Hsiao SY, Hsiao HH. Emodin Ameliorates the Efficacy of Carfilzomib in Multiple Myeloma Cells via Apoptosis and Autophagy. Biomedicines 2022; 10:biomedicines10071638. [PMID: 35884943 PMCID: PMC9312579 DOI: 10.3390/biomedicines10071638] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Revised: 06/21/2022] [Accepted: 07/05/2022] [Indexed: 11/19/2022] Open
Abstract
Background: Carfilzomib, the proteasome inhibitor, can increase the overall survival rate of multiple myeloma (MM) patients undergoing targeted therapy. However, relapse and toxicity present great challenges for such treatment, so an urgent need for effective combination therapy is necessary. Emodin is a natural chemical compound that inhibits the proliferation of various cancers and can effectively combine with other treatments. In this study, we evaluated the sensitizing effect of emodin combined with carfilzomib on MM cells. Methods: The cells were treated with emodin, carfilzomib, and a combination of drugs to determine their effects on cell proliferation and viability. The cell cycle distribution and reactive oxygen species (ROS) expression were measured by flow cytometry. The level of RNA and protein were analyzed through real-time qPCR and immunoblotting. Results: Emodin acted synergistically with carfilzomib to reduce the proliferation and viability of MM cell lines in vitro. Furthermore, the combination of emodin and carfilzomib increased ROS production, inducing apoptosis and autophagy pathways via caspase-3, PARP, p62, and LC3B. Conclusions: These results provide a molecular target for combination therapy in MM patients.
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Affiliation(s)
- Chin-Mu Hsu
- Division of Hematology and Oncology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung 807, Taiwan; (C.-M.H.); (Y.-C.L.); (C.-T.H.); (M.-H.W.); (T.-M.C.); (Y.-L.K.); (T.-J.Y.); (Y.-C.G.); (J.-S.D.); (H.-C.W.); (S.-F.C.); (C.-E.H.)
| | - Chia-Hung Yen
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University, Kaohsiung 807, Taiwan;
- Center for Cancer Research, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Shu-Chen Wang
- Department of Laboratory Medicine, Kaohsiung Medical University Hospital, Kaohsiung 807, Taiwan;
| | - Yi-Chang Liu
- Division of Hematology and Oncology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung 807, Taiwan; (C.-M.H.); (Y.-C.L.); (C.-T.H.); (M.-H.W.); (T.-M.C.); (Y.-L.K.); (T.-J.Y.); (Y.-C.G.); (J.-S.D.); (H.-C.W.); (S.-F.C.); (C.-E.H.)
- Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Chien-Tzu Huang
- Division of Hematology and Oncology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung 807, Taiwan; (C.-M.H.); (Y.-C.L.); (C.-T.H.); (M.-H.W.); (T.-M.C.); (Y.-L.K.); (T.-J.Y.); (Y.-C.G.); (J.-S.D.); (H.-C.W.); (S.-F.C.); (C.-E.H.)
| | - Min-Hong Wang
- Division of Hematology and Oncology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung 807, Taiwan; (C.-M.H.); (Y.-C.L.); (C.-T.H.); (M.-H.W.); (T.-M.C.); (Y.-L.K.); (T.-J.Y.); (Y.-C.G.); (J.-S.D.); (H.-C.W.); (S.-F.C.); (C.-E.H.)
| | - Tzer-Ming Chuang
- Division of Hematology and Oncology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung 807, Taiwan; (C.-M.H.); (Y.-C.L.); (C.-T.H.); (M.-H.W.); (T.-M.C.); (Y.-L.K.); (T.-J.Y.); (Y.-C.G.); (J.-S.D.); (H.-C.W.); (S.-F.C.); (C.-E.H.)
| | - Ya-Lun Ke
- Division of Hematology and Oncology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung 807, Taiwan; (C.-M.H.); (Y.-C.L.); (C.-T.H.); (M.-H.W.); (T.-M.C.); (Y.-L.K.); (T.-J.Y.); (Y.-C.G.); (J.-S.D.); (H.-C.W.); (S.-F.C.); (C.-E.H.)
| | - Tsung-Jang Yeh
- Division of Hematology and Oncology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung 807, Taiwan; (C.-M.H.); (Y.-C.L.); (C.-T.H.); (M.-H.W.); (T.-M.C.); (Y.-L.K.); (T.-J.Y.); (Y.-C.G.); (J.-S.D.); (H.-C.W.); (S.-F.C.); (C.-E.H.)
| | - Yuh-Ching Gau
- Division of Hematology and Oncology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung 807, Taiwan; (C.-M.H.); (Y.-C.L.); (C.-T.H.); (M.-H.W.); (T.-M.C.); (Y.-L.K.); (T.-J.Y.); (Y.-C.G.); (J.-S.D.); (H.-C.W.); (S.-F.C.); (C.-E.H.)
- Graduate Institute of Clinical Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Jeng-Shiun Du
- Division of Hematology and Oncology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung 807, Taiwan; (C.-M.H.); (Y.-C.L.); (C.-T.H.); (M.-H.W.); (T.-M.C.); (Y.-L.K.); (T.-J.Y.); (Y.-C.G.); (J.-S.D.); (H.-C.W.); (S.-F.C.); (C.-E.H.)
- Graduate Institute of Clinical Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Hui-Ching Wang
- Division of Hematology and Oncology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung 807, Taiwan; (C.-M.H.); (Y.-C.L.); (C.-T.H.); (M.-H.W.); (T.-M.C.); (Y.-L.K.); (T.-J.Y.); (Y.-C.G.); (J.-S.D.); (H.-C.W.); (S.-F.C.); (C.-E.H.)
- Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Graduate Institute of Clinical Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Shih-Feng Cho
- Division of Hematology and Oncology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung 807, Taiwan; (C.-M.H.); (Y.-C.L.); (C.-T.H.); (M.-H.W.); (T.-M.C.); (Y.-L.K.); (T.-J.Y.); (Y.-C.G.); (J.-S.D.); (H.-C.W.); (S.-F.C.); (C.-E.H.)
- Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Yuhsin Tsai
- Graduate Institute of Chinese Medicine, School of Chinese Medicine, China Medical University, Taichung 404, Taiwan;
| | - Chi-En Hsiao
- Division of Hematology and Oncology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung 807, Taiwan; (C.-M.H.); (Y.-C.L.); (C.-T.H.); (M.-H.W.); (T.-M.C.); (Y.-L.K.); (T.-J.Y.); (Y.-C.G.); (J.-S.D.); (H.-C.W.); (S.-F.C.); (C.-E.H.)
| | - Samuel Yien Hsiao
- Department of Biology, University of Rutgers-Camden, Camden, NJ 08102, USA;
| | - Hui-Hua Hsiao
- Division of Hematology and Oncology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung 807, Taiwan; (C.-M.H.); (Y.-C.L.); (C.-T.H.); (M.-H.W.); (T.-M.C.); (Y.-L.K.); (T.-J.Y.); (Y.-C.G.); (J.-S.D.); (H.-C.W.); (S.-F.C.); (C.-E.H.)
- Center for Cancer Research, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Cancer Center, Kaohsiung Medical University Hospital, Kaohsiung 807, Taiwan
- Correspondence: ; Tel.: +886-7312-1101 (ext. 6110)
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Modulation of the 20S Proteasome Activity by Porphyrin Derivatives Is Steered through Their Charge Distribution. Biomolecules 2022; 12:biom12060741. [PMID: 35740865 PMCID: PMC9220251 DOI: 10.3390/biom12060741] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Revised: 05/15/2022] [Accepted: 05/20/2022] [Indexed: 11/20/2022] Open
Abstract
Cationic porphyrins exhibit an amazing variety of binding modes and inhibition mechanisms of 20S proteasome. Depending on the spatial distribution of their electrostatic charges, they can occupy different sites on α rings of 20S proteasome by exploiting the structural code responsible for the interaction with regulatory proteins. Indeed, they can act as competitive or allosteric inhibitors by binding at the substrate gate or at the grooves between the α subunits, respectively. Moreover, the substitution of a charged moiety in the peripheral arm with a hydrophobic moiety revealed a “new” 20S functional state with higher substrate affinity and catalytic efficiency. In the present study, we expand our structure–activity relationship (SAR) analysis in order to further explore the potential of this versatile class of 20S modulators. Therefore, we have extended the study to additional macrocyclic compounds, displaying different structural features, comparing their interaction behavior on the 20S proteasome with previously investigated compounds. In particular, in order to evaluate how the introduction of a peptidic chain can affect the affinity and the interacting mechanism of porphyrins, we investigate the MTPyApi, a porphyrin derivatized with an Arg–Pro-rich antimicrobial peptide. Moreover, to unveil the role played by the porphyrin core, this was replaced with a corrole scaffold, a “contracted” version of the tetrapyrrolic ring due to the lack of a methine bridge. The analysis has been undertaken by means of integrated kinetic, Nuclear Magnetic Resonance, and computational studies. Finally, in order to assess a potential pharmacological significance of this type of investigation, a preliminary attempt has been performed to evaluate the biological effect of these molecules on MCF7 breast cancer cells in dark conditions, envisaging that porphyrins may indeed represent a powerful tool for the modulation of cellular proteostasis.
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