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Jang HJ, Yoon YJ, Choi J, Lee YJ, Lee S, Cho W, Byun WG, Park SB, Han DC, Kwon BM. S-Benproperine, an Active Stereoisomer of Benproperine, Suppresses Cancer Migration and Tumor Metastasis by Targeting ARPC2. Pharmaceuticals (Basel) 2022; 15:ph15121462. [PMID: 36558913 PMCID: PMC9785746 DOI: 10.3390/ph15121462] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Revised: 11/19/2022] [Accepted: 11/22/2022] [Indexed: 11/29/2022] Open
Abstract
Metastasis, in which cancer cells migrate to other tissues and form new tumors, is a major cause of both cancer death and treatment failure. In a previous study, benproperine (Benp) was identified as a cancer cell migration inhibitor and an inhibitor of actin-related protein 2/3 complex subunit 2 (ARPC2). However, Benp is a racemic mixture, and which stereoisomer is the active isomer remains unclear. In this study, we found that S-Benp is an active isomer and inhibits the migration and invasion of cancer cells much more strongly than R-Benp, with no effect on normal cells. The metastasis inhibitory effect of S-Benp was also verified in an animal model. Validating that inhibitors bind to their targets in cells and tissues has been a very challenging task in drug discovery. The direct interactions between ARPC2 and S-Benp were verified by surface plasmon resonance analysis (SPR), a cellular thermal shift assay (CETSA), and drug affinity responsive target stability (DARTS). In the mutant study with ARPC2F225A cells, S-Benp did not bind to ARPC2F225A according to CETSA and DARTS. Furthermore, we validated that S-Benp colocalized with ARPC2 in cancer cells and directly bound to ARPC2 in tumor tissues using Cy3-conjugated S-Benp according to CETSA. Finally, actin polymerization assays and immunocytochemistry showed that S-Benp suppressed actin remodeling such as lamellipodium formation. Taken together, our data suggest that S-Benp is an active stereoisomer of Benp and a potential metastasis inhibitor via ARPC2 binding.
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Affiliation(s)
- Hyun-Jin Jang
- Laboratory of Chemical Biology and Genomics, Korea Research Institute of Bioscience and Biotechnology, 125 Gwahakro, Daejeon 34141, Republic of Korea
| | - Yae Jin Yoon
- Laboratory of Chemical Biology and Genomics, Korea Research Institute of Bioscience and Biotechnology, 125 Gwahakro, Daejeon 34141, Republic of Korea
| | - Jiyeon Choi
- Laboratory of Chemical Biology and Genomics, Korea Research Institute of Bioscience and Biotechnology, 125 Gwahakro, Daejeon 34141, Republic of Korea
| | - Yu-Jin Lee
- Laboratory of Chemical Biology and Genomics, Korea Research Institute of Bioscience and Biotechnology, 125 Gwahakro, Daejeon 34141, Republic of Korea
| | - Sangku Lee
- Laboratory of Chemical Biology and Genomics, Korea Research Institute of Bioscience and Biotechnology, 125 Gwahakro, Daejeon 34141, Republic of Korea
| | - Wansang Cho
- Department of Chemistry, Seoul National University, Seoul 08826, Republic of Korea
| | - Wan Gi Byun
- Department of Chemistry, Seoul National University, Seoul 08826, Republic of Korea
| | - Seung Bum Park
- Department of Chemistry, Seoul National University, Seoul 08826, Republic of Korea
| | - Dong Cho Han
- Laboratory of Chemical Biology and Genomics, Korea Research Institute of Bioscience and Biotechnology, 125 Gwahakro, Daejeon 34141, Republic of Korea
- KRIBB School of Bioscience, University of Science and Technology in Korea, 217 Gajeongro, Daejeon 34113, Republic of Korea
- Correspondence: (D.C.H.); (B.-M.K.)
| | - Byoung-Mog Kwon
- Laboratory of Chemical Biology and Genomics, Korea Research Institute of Bioscience and Biotechnology, 125 Gwahakro, Daejeon 34141, Republic of Korea
- Central Research Institute, VS Pharm Tech Co., Ltd., Daejeon 35209, Republic of Korea
- Correspondence: (D.C.H.); (B.-M.K.)
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Yun S, Lee YJ, Choi J, Kim ND, Han DC, Kwon BM. Acacetin Inhibits the Growth of STAT3-Activated DU145 Prostate Cancer Cells by Directly Binding to Signal Transducer and Activator of Transcription 3 (STAT3). Molecules 2021; 26:molecules26206204. [PMID: 34684783 PMCID: PMC8540902 DOI: 10.3390/molecules26206204] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 09/24/2021] [Accepted: 10/12/2021] [Indexed: 11/16/2022] Open
Abstract
Signal transducer and activator of transcription 3 (STAT3) plays a critical role in the formation and growth of human cancer. Therefore, STAT3 is a therapeutic target for cancer drug discovery. Acacetin, a flavone present in various plants, inhibits constitutive and inducible STAT3 activation in STAT3-activated DU145 prostate cancer cells. Acacetin inhibits STAT3 activity by directly binding to STAT3, which we confirmed by a pull-down assay with a biotinylated compound and two level-free methods, namely, a drug affinity responsive target stability (DARTS) experiment and a cellular thermal shift assay (CETSA). Acacetin inhibits STAT3 phosphorylation at the tyrosine 705 residue and nuclear translocation in DU145 cells, which leads to the downregulation of STAT3 target genes. Acacetin then induces apoptosis in a time-dependent manner. Interestingly, acacetin induces the production of reactive oxygen species (ROS) that are not involved in the acacetin-induced inhibition of STAT3 activation because the suppressed p-STAT3 level is not rescued by treatment with GSH or NAC, which are general ROS inhibitors. We also found that acacetin inhibits tumor growth in xenografted nude mice. These results suggest that acacetin, as a STAT3 inhibitor, could be a possible drug candidate for targeting STAT3 for the treatment of cancer in humans.
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Affiliation(s)
- Sun Yun
- Laboratory of Chemical Biology and Genomics, Korea Research Institute of Bioscience and Biotechnology, 125 Gwahakro, Daejeon 34141, Korea; (S.Y.); (Y.-J.L.); (J.C.)
- KRIBB School of Bioscience, University of Science and Technology in Korea, Daejeon 34113, Korea
| | - Yu-Jin Lee
- Laboratory of Chemical Biology and Genomics, Korea Research Institute of Bioscience and Biotechnology, 125 Gwahakro, Daejeon 34141, Korea; (S.Y.); (Y.-J.L.); (J.C.)
| | - Jiyeon Choi
- Laboratory of Chemical Biology and Genomics, Korea Research Institute of Bioscience and Biotechnology, 125 Gwahakro, Daejeon 34141, Korea; (S.Y.); (Y.-J.L.); (J.C.)
| | - Nam Doo Kim
- VORONOIBIO Inc., S 11th F, Thechnopark IT Center Songdo Kwahak-ro 32, Incheon 21984, Korea;
| | - Dong Cho Han
- Laboratory of Chemical Biology and Genomics, Korea Research Institute of Bioscience and Biotechnology, 125 Gwahakro, Daejeon 34141, Korea; (S.Y.); (Y.-J.L.); (J.C.)
- KRIBB School of Bioscience, University of Science and Technology in Korea, Daejeon 34113, Korea
- Correspondence: (D.C.H.); (B.-M.K); Tel.: +82-42-860-4557 (B.-M.K.)
| | - Byoung-Mog Kwon
- Laboratory of Chemical Biology and Genomics, Korea Research Institute of Bioscience and Biotechnology, 125 Gwahakro, Daejeon 34141, Korea; (S.Y.); (Y.-J.L.); (J.C.)
- KRIBB School of Bioscience, University of Science and Technology in Korea, Daejeon 34113, Korea
- Correspondence: (D.C.H.); (B.-M.K); Tel.: +82-42-860-4557 (B.-M.K.)
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Hao L, Mao Y, Park J, Kwon BM, Bae EJ, Park BH. 2'-Hydroxycinnamaldehyde ameliorates imiquimod-induced psoriasiform inflammation by targeting PKM2-STAT3 signaling in mice. Exp Mol Med 2021; 53:875-884. [PMID: 33990689 PMCID: PMC8178393 DOI: 10.1038/s12276-021-00620-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Revised: 03/23/2021] [Accepted: 03/29/2021] [Indexed: 12/12/2022] Open
Abstract
2′-Hydroxycinnamaldehyde (HCA), the active component isolated from the stem bark of Cinnamomum cassia, exerts anticancer effects through multiple mechanisms. We recently determined that HCA inhibits signal transducer and activator of transcription 3 (STAT3) signaling in prostate cancer cells. Because STAT3 overactivation has been closely associated with the development of psoriasis, a chronic autoimmune skin disease, we examined whether HCA ameliorates skin lesions in an imiquimod-induced psoriasis-like mouse model. The results showed that intraperitoneal administration of HCA alleviated imiquimod-induced psoriasis-like dermatitis, epidermal thickening, dermal infiltration of inflammatory cells, and proinflammatory cytokine production. Mechanistically, HCA inhibited pyruvate kinase isozyme M2 and STAT3 signaling, leading to the suppression of T cell activation, Th17 cell differentiation, and keratinocyte hyperproliferation. These results suggest that HCA may be a new treatment for psoriasis and other STAT3-mediated skin disorders, such as infection, inflammation and carcinogenesis. An active compound found in cinnamon bark could help alleviate the symptoms of psoriasis according to a study in mice by researchers in South Korea. A team led by Eun Ju Bae and Byung-Hyun Park from Chonbuk National University in Jeonju administered 2′-hydroxycinnamaldehyde, a molecule derived from cinnamon, to mice with drug-induced psoriatic skin lesions. After the treatment, the mice showed fewer signs of skin irritation, with less inflammation and no detectable ill effects. The researchers showed that the drug blocked an enzyme that normally activates a central regulator of immune responses in the skin. Consequently, fewer proinflammatory T cells infiltrated the skin and epidermal cells did not grow out of control. The findings highlight the potential of a natural product to safely treat psoriasis and related inflammatory disorders.
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Affiliation(s)
- Lihua Hao
- Department of Biochemistry and Molecular Biology, Chonbuk National University Medical School, Jeonju, Jeonbuk, 54896, Republic of Korea
| | - Yuancheng Mao
- Department of Biochemistry and Molecular Biology, Chonbuk National University Medical School, Jeonju, Jeonbuk, 54896, Republic of Korea
| | - Jin Park
- Department of Dermatology, Chonbuk National University Medical School, Jeonju, Jeonbuk, 54896, Republic of Korea
| | - Byoung-Mog Kwon
- Laboratory of Chemical Biology and Genomics, Korea Research Institute of Bioscience and Biotechnology, Daejeon, 34141, Republic of Korea
| | - Eun Ju Bae
- College of Pharmacy, Chonbuk National University, Jeonju, Jeonbuk, 54896, Republic of Korea.
| | - Byung-Hyun Park
- Department of Biochemistry and Molecular Biology, Chonbuk National University Medical School, Jeonju, Jeonbuk, 54896, Republic of Korea.
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Yoon YJ, Kwon BM. Cinnamomum cassia, apoptosis, STAT3 inactivation and reactive oxygen species in cancer studies. Cancer 2021. [DOI: 10.1016/b978-0-12-819547-5.00029-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Lee YJ, Choi J, Yoon YJ, Sim Y, Ryu HW, Oh SR, Kim DY, Hwang J, Chi SW, Han DC, Kwon BM. 8-Epi-xanthatin induces the apoptosis of DU145 prostate carcinoma cells through signal transducer and activator of transcription 3 inhibition and reactive oxygen species generation. Phytother Res 2020; 35:1508-1520. [PMID: 33164240 DOI: 10.1002/ptr.6918] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Revised: 09/11/2020] [Accepted: 10/01/2020] [Indexed: 12/15/2022]
Abstract
Signal transducer and activator of transcription 3 (STAT3) is aberrantly activated in many human cancers. We tried to find STAT3 inhibitors from natural sources and found that Xanthium fruit extracts decreased phosphorylation of STAT3-Y705. 8-Epi-xanthatin (EXT) was isolated from the extracts. When DU145 cancer cells were treated with EXT, p-STAT3-Y705 was decreased with an IC50 of 3.2 μM. EXT decreased the expression of STAT3 target genes, such as cyclin A, cyclin D1, and BCL-2, and induced PARP cleavage, indicating apoptotic cell death. Downregulation of EXT-induced p-STAT3-Y705 was rescued by pretreating DU145 cells with antioxidants, such as N-acetyl-L-cysteine (NAC), indicating that reactive oxygen species (ROS) were involved in the EXT-induced inhibition of STAT3 activation. Furthermore, we proved the association of EXT with STAT3 protein by using a drug affinity responsive target stability (DARTS) assay and a cellular thermal shift assay (CETSA). EXT inhibited proliferation of DU145 cells with a GI50 of 6 μM and reduced tumor growth in mice xenografted with DU145 cells. Immunoblotting showed that phosphorylation of STAT3-Y705 was lower in EXT-treated tumor tissue than in control tissues. Collectively, we found that EXT binds to, and inhibits, STAT3 activation and could be a lead compound for anticancer therapy.
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Affiliation(s)
- Yu-Jin Lee
- Laboratory of Chemical Biology and Genomics, Korea Research Institute of Bioscience and Biotechnology, Daejeon, South Korea
| | - Jiyeon Choi
- Laboratory of Chemical Biology and Genomics, Korea Research Institute of Bioscience and Biotechnology, Daejeon, South Korea
| | - Yae Jin Yoon
- Laboratory of Chemical Biology and Genomics, Korea Research Institute of Bioscience and Biotechnology, Daejeon, South Korea
| | - Yugyeong Sim
- Laboratory of Chemical Biology and Genomics, Korea Research Institute of Bioscience and Biotechnology, Daejeon, South Korea.,University of Science and Technology in Korea, Daejeon
| | - Hyung Won Ryu
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju, South Korea
| | - Sei-Ryang Oh
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju, South Korea
| | - Doo-Young Kim
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju, South Korea
| | - Jihyun Hwang
- Disease Target Structure Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon, South Korea
| | - Seung-Wook Chi
- University of Science and Technology in Korea, Daejeon.,Disease Target Structure Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon, South Korea
| | - Dong Cho Han
- Laboratory of Chemical Biology and Genomics, Korea Research Institute of Bioscience and Biotechnology, Daejeon, South Korea.,University of Science and Technology in Korea, Daejeon
| | - Byoung-Mog Kwon
- Laboratory of Chemical Biology and Genomics, Korea Research Institute of Bioscience and Biotechnology, Daejeon, South Korea.,University of Science and Technology in Korea, Daejeon
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Park E, Hong K, Kwon BM, Kim Y, Kim JH. Jaceosidin Ameliorates Insulin Resistance and Kidney Dysfunction by Enhancing Insulin Receptor Signaling and the Antioxidant Defense System in Type 2 Diabetic Mice. J Med Food 2020; 23:1083-1092. [PMID: 32780673 DOI: 10.1089/jmf.2020.4739] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Emerging evidence has shown that flavonoids extracted from Artemisia have beneficial effects on metabolic disorders. However, whether and how jaceosidin ameliorates insulin resistance and diabetic nephropathy in type 2 diabetes mellitus is largely unknown. For 8 weeks, db/db diabetic mice were fed with or without jaceosidin. Oral jaceosidin supplementation reduced fasting blood glucose levels and insulin resistance through the upregulation of insulin receptor downstream pathways in the liver and skeletal muscles. While jaceosidin did not noticeably alter kidney filtration function, this dietary intervention contributed to attenuating the accumulation of advanced glycation end products in diabetic kidneys. The levels of VEGF-a (vascular endothelial growth factor-a) proteins in the diabetic kidneys were markedly diminished by jaceosidin treatments, which increased the expression and activity of Cu (copper) and Zn-SOD (zinc-superoxide dismutase). Therefore, it is suggested that jaceosidin supplementation elicits antidiabetic effects and treats diabetic nephropathy by augmenting insulin signaling, suppressing fibrosis, and enhancing antioxidant activity.
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Affiliation(s)
- Eunkyo Park
- Department of Home Economics Education, College of Education, Chung-Ang University, Seoul, Korea
| | - Kwangseok Hong
- Department of Physical Education, College of Education, Chung-Ang University, Seoul, Korea
| | - Byoung-Mog Kwon
- Division of Biomedical Convergent, Korea Research Institute of Bioscience & Biotechnology, Daejeon, Korea
| | - Yuri Kim
- Department of Nutritional Science and Food Management, Ewha Womans University, Seoul, Korea
| | - Jung-Hyun Kim
- Department of Home Economics Education, College of Education, Chung-Ang University, Seoul, Korea.,Department of Physical Education, College of Education, Chung-Ang University, Seoul, Korea
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Lee YJ, Song H, Yoon YJ, Park SJ, Kim SY, Cho Han D, Kwon BM. Ethacrynic acid inhibits STAT3 activity through the modulation of SHP2 and PTP1B tyrosine phosphatases in DU145 prostate carcinoma cells. Biochem Pharmacol 2020; 175:113920. [DOI: 10.1016/j.bcp.2020.113920] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Accepted: 03/17/2020] [Indexed: 01/17/2023]
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Choi J, Lee YJ, Yoon YJ, Kim CH, Park SJ, Kim SY, Doo Kim N, Cho Han D, Kwon BM. Pimozide suppresses cancer cell migration and tumor metastasis through binding to ARPC2, a subunit of the Arp2/3 complex. Cancer Sci 2019; 110:3788-3801. [PMID: 31571309 PMCID: PMC6890432 DOI: 10.1111/cas.14205] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Revised: 09/18/2019] [Accepted: 09/26/2019] [Indexed: 12/14/2022] Open
Abstract
ARPC2 is a subunit of the Arp2/3 complex, which is essential for lamellipodia, invadopodia and filopodia, and ARPC2 has been identified as a migrastatic target molecule. To identify ARPC2 inhibitors, we generated an ARPC2 knockout DLD-1 human colon cancer cell line using the clustered regularly interspaced short palindromic repeats/CRISPR-associated protein 9 (CRISPR/Cas9) system and explored gene signature-based strategies, such as a connectivity map (CMap) using the gene expression profiling data of ARPC2 knockout and knockdown cells. From the CMap-based drug discovery strategy, we identified pimozide (a clinically used antipsychotic drug) as a migrastatic drug and ARPC2 inhibitor. Pimozide inhibited the migration and invasion of various cancer cells. Through drug affinity responsive target stability (DARTS) analysis and cellular thermal shift assay (CETSA), it was confirmed that pimozide directly binds to ARPC2. Pimozide increased the lag phase of Arp2/3 complex-dependent actin polymerization and inhibited the vinculin-mediated recruitment of ARPC2 to focal adhesions in cancer cells. To validate the likely binding of pimozide to ARPC2, mutant cells, including ARPC2F225A , ARPC2F247A and ARPC2Y250F cells, were prepared using ARPC2 knockout cells prepared by gene-editing technology. Pimozide strongly inhibited the migration of mutant cells because the mutated ARPC2 likely has a larger binding pocket than the wild-type ARPC2. Therefore, pimozide is a potential ARPC2 inhibitor, and ARPC2 is a new molecular target. Taken together, the results of the present study provide new insights into the molecular mechanism and target that are responsible for the antitumor and antimetastatic activity of pimozide.
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Affiliation(s)
- Jiyeon Choi
- Laboratory of Chemical Biology and Genomics, Korea Research Institute of Bioscience and Biotechnology, Daejeon, Korea.,Department of Bioscience and Biotechnology, Chungnam National University, Daejeon, Korea
| | - Yu-Jin Lee
- Laboratory of Chemical Biology and Genomics, Korea Research Institute of Bioscience and Biotechnology, Daejeon, Korea
| | - Yae Jin Yoon
- Laboratory of Chemical Biology and Genomics, Korea Research Institute of Bioscience and Biotechnology, Daejeon, Korea
| | - Cheol-Hee Kim
- Department of Bioscience and Biotechnology, Chungnam National University, Daejeon, Korea
| | - Seung-Jin Park
- Korea Research Institute of Bioscience and Biotechnology, Personalized Genomic Medicine Research Center, Daejeon, Korea.,University of Science and Technology, Daejeon, Korea
| | - Seon-Young Kim
- Korea Research Institute of Bioscience and Biotechnology, Personalized Genomic Medicine Research Center, Daejeon, Korea.,University of Science and Technology, Daejeon, Korea
| | - Nam Doo Kim
- Daegu-Gyeongbuk Medical Innovation Foundation, Daegu, Korea
| | - Dong Cho Han
- Laboratory of Chemical Biology and Genomics, Korea Research Institute of Bioscience and Biotechnology, Daejeon, Korea.,University of Science and Technology, Daejeon, Korea
| | - Byoung-Mog Kwon
- Laboratory of Chemical Biology and Genomics, Korea Research Institute of Bioscience and Biotechnology, Daejeon, Korea.,University of Science and Technology, Daejeon, Korea
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Yoon YJ, Han YM, Choi J, Lee YJ, Yun J, Lee SK, Lee CW, Kang JS, Chi SW, Moon JH, Lee S, Han DC, Kwon BM. Benproperine, an ARPC2 inhibitor, suppresses cancer cell migration and tumor metastasis. Biochem Pharmacol 2019; 163:46-59. [PMID: 30710516 DOI: 10.1016/j.bcp.2019.01.017] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2018] [Accepted: 01/24/2019] [Indexed: 02/09/2023]
Abstract
Metastasis is the leading cause of cancer mortality and cancer cell migration is an essential stage of metastasis. We identified benproperine (Benp, a clinically used antitussive drug) as an inhibitor of cancer cell migration and an anti-metastatic agent. Benp selectively inhibited cancer cell migration and invasion, which also suppressed metastasis of cancer cells in animal models. Actin-related protein 2/3 complex subunit 2 (ARPC2) was identified as a molecular target of Benp by affinity column chromatography with Benp-tagged Sepharose beads. Benp bound directly to ARPC2 in cells, which was validated by pull-down assay using Benp-biotin and label-free biochemical methods such as the drug affinity responsive target stability (DARTS) and cellular thermal shift assay (CETSA). Benp inhibited Arp2/3 function, showing disruption of lamellipodial structure and inhibition of actin polymerization. Unlike Arp2/3 inhibitors, Benp selectively inhibited the migration of cancer cells but not normal cells. ARPC2-knockdown cancer cells showed defective cell migration and suppressed metastasis in an animal model. Therefore, ARPC2 is a potential target for anti-metastatic therapy, and Benp has the clinical potential to block metastasis. Furthermore, Benp is a useful agent for studying the functions of the Arp2/3 complex in cancer cell migration and metastasis.
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Affiliation(s)
- Yae Jin Yoon
- Laboratory of Chemical Biology and Genomics, Korea Research Institute of Bioscience and Biotechnology, 125 Gwahakro, Daejeon 34141, Republic of Korea
| | - Young-Min Han
- Laboratory of Chemical Biology and Genomics, Korea Research Institute of Bioscience and Biotechnology, 125 Gwahakro, Daejeon 34141, Republic of Korea
| | - Jiyeon Choi
- Laboratory of Chemical Biology and Genomics, Korea Research Institute of Bioscience and Biotechnology, 125 Gwahakro, Daejeon 34141, Republic of Korea; Department of Biology, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Yu-Jin Lee
- Laboratory of Chemical Biology and Genomics, Korea Research Institute of Bioscience and Biotechnology, 125 Gwahakro, Daejeon 34141, Republic of Korea
| | - Jieun Yun
- Laboratory of Chemical Biology and Genomics, Korea Research Institute of Bioscience and Biotechnology, 125 Gwahakro, Daejeon 34141, Republic of Korea
| | - Su-Kyung Lee
- Laboratory of Chemical Biology and Genomics, Korea Research Institute of Bioscience and Biotechnology, 125 Gwahakro, Daejeon 34141, Republic of Korea
| | - Chang Woo Lee
- Laboratory of Chemical Biology and Genomics, Korea Research Institute of Bioscience and Biotechnology, 125 Gwahakro, Daejeon 34141, Republic of Korea
| | - Jong Soon Kang
- Laboratory of Chemical Biology and Genomics, Korea Research Institute of Bioscience and Biotechnology, 125 Gwahakro, Daejeon 34141, Republic of Korea
| | - Seung-Wook Chi
- Laboratory of Chemical Biology and Genomics, Korea Research Institute of Bioscience and Biotechnology, 125 Gwahakro, Daejeon 34141, Republic of Korea; Korea University of Science and Technology in Korea, Daejeon, Republic of Korea
| | - Jeong Hee Moon
- Laboratory of Chemical Biology and Genomics, Korea Research Institute of Bioscience and Biotechnology, 125 Gwahakro, Daejeon 34141, Republic of Korea
| | - Sangku Lee
- Laboratory of Chemical Biology and Genomics, Korea Research Institute of Bioscience and Biotechnology, 125 Gwahakro, Daejeon 34141, Republic of Korea
| | - Dong Cho Han
- Laboratory of Chemical Biology and Genomics, Korea Research Institute of Bioscience and Biotechnology, 125 Gwahakro, Daejeon 34141, Republic of Korea; Korea University of Science and Technology in Korea, Daejeon, Republic of Korea.
| | - Byoung-Mog Kwon
- Laboratory of Chemical Biology and Genomics, Korea Research Institute of Bioscience and Biotechnology, 125 Gwahakro, Daejeon 34141, Republic of Korea; Korea University of Science and Technology in Korea, Daejeon, Republic of Korea.
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Cho YL, Park JG, Kang HJ, Kim W, Cho MJ, Jang JH, Kwon MG, Kim S, Lee SH, Lee J, Kim YG, Park YJ, Kim WK, Bae KH, Kwon BM, Chung SJ, Min JK. Ginkgetin, a biflavone from Ginkgo biloba leaves, prevents adipogenesis through STAT5-mediated PPARγ and C/EBPα regulation. Pharmacol Res 2019; 139:325-336. [DOI: 10.1016/j.phrs.2018.11.027] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/21/2018] [Revised: 09/28/2018] [Accepted: 11/20/2018] [Indexed: 12/13/2022]
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Yoon YJ, Kim YH, Lee YJ, Choi J, Kim CH, Han DC, Kwon BM. 2'-Hydroxycinnamaldehyde inhibits proliferation and induces apoptosis via signal transducer and activator of transcription 3 inactivation and reactive oxygen species generation. Cancer Sci 2018; 110:366-378. [PMID: 30375708 PMCID: PMC6317917 DOI: 10.1111/cas.13852] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2018] [Revised: 10/18/2018] [Accepted: 10/23/2018] [Indexed: 12/25/2022] Open
Abstract
Inhibition of the signal transducer and activator of transcription 3 (STAT3) signaling pathway is a novel therapeutic strategy to treat human cancers with constitutively active STAT3. During the screening of natural products to find STAT3 inhibitors, we identified 2′‐hydroxycinnamaldehyde (HCA) as a STAT3 inhibitor, which was isolated from the stem bark of Cinnamomum cassia. In this study, we found that HCA inhibited constitutive and inducible STAT3 activation in STAT3‐activated DU145 prostate cancer cells. HCA selectively inhibited the STAT3 activity by direct binding to STAT3, which was confirmed by biochemical methods, including a pull‐down assay with biotin‐conjugated HCA, a drug affinity responsive target stability (DARTS) experiment and a cellular thermal shift assay (CETSA). HCA inhibited STAT3 phosphorylation at the tyrosine 705 residue, dimer formation, and nuclear translocation in DU145 cells, which led to a downregulation of STAT3 target genes. The downregulation of cell cycle progression and antiapoptosis‐related gene expression by HCA induced the accumulation of cells in the G0/G1 phase of the cell cycle and then induced apoptosis. We also found that reactive oxygen species (ROS) were involved in the HCA‐induced inhibition of STAT3 activation and cell proliferation because the suppressed p‐STAT3 level was rescued by glutathione or N‐acetyl‐L‐cysteine treatment, which are general ROS inhibitors. These results suggest that HCA could be a potent anticancer agent targeting STAT3‐activated tumor cells.
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Affiliation(s)
- Yae Jin Yoon
- Laboratory of Chemical Biology and Genomics, Korea Research Institute of Bioscience and Biotechnology, Daejeon, Korea
| | - Young-Hwan Kim
- Laboratory of Chemical Biology and Genomics, Korea Research Institute of Bioscience and Biotechnology, Daejeon, Korea.,Department of Biology, Chungnam National University, Daejeon, Korea
| | - Yu-Jin Lee
- Laboratory of Chemical Biology and Genomics, Korea Research Institute of Bioscience and Biotechnology, Daejeon, Korea
| | - Jiyeon Choi
- Laboratory of Chemical Biology and Genomics, Korea Research Institute of Bioscience and Biotechnology, Daejeon, Korea.,Department of Biology, Chungnam National University, Daejeon, Korea
| | - Cheol-Hee Kim
- Department of Biology, Chungnam National University, Daejeon, Korea
| | - Dong Cho Han
- Laboratory of Chemical Biology and Genomics, Korea Research Institute of Bioscience and Biotechnology, Daejeon, Korea.,Korea University of Science and Technology in Korea, Daejeon, Korea
| | - Byoung-Mog Kwon
- Laboratory of Chemical Biology and Genomics, Korea Research Institute of Bioscience and Biotechnology, Daejeon, Korea.,Korea University of Science and Technology in Korea, Daejeon, Korea
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12
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Kang SM, Kim J, Kang SH, Oh SY, Lee HJ, Kwon BM, Hong SH. Up-regulation of Bone Morphogenetic Protein 7 by 2-Hydroxycinnamaldehyde Attenuates HNSCC Cell Invasion. Anticancer Res 2018; 38:5747-5757. [PMID: 30275196 DOI: 10.21873/anticanres.12913] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2018] [Revised: 09/14/2018] [Accepted: 09/17/2018] [Indexed: 11/10/2022]
Abstract
BACKGROUND/AIM Few studies have examined the effect of 2'-hydroxycinnamaldehyde (HCA) on head and neck squamous cell carcinoma (HNSCC) cell invasion. This study examined the role of BMP7 on the anti-migration and anti-invasion activity of HCA using HNSCC cells. MATERIALS AND METHODS Matrigel invasion and wound healing assays were conducted to investigate cell migration or invasion. BMP7 overexpression vector or siRNA mixture was used for transient regulation of gene expression. RESULTS HCA attenuated HNSCC cell migration and spheroids Matrigel invasion without cytotoxicity. mRNA and protein expression of BMP7 increased with HCA treatment. Exogenous BMP7 overexpression without HCA treatment attenuated Matrigel invasion of cells. Furthermore, suppression of BMP7 by siRNA alleviated the inhibitory effect of HCA on the invasion of Matrigel by the cell, indicating that BMP7 is responsible for the anti-migration effect of HCA in HNSCC cells. CONCLUSION HCA treatment led to a remarkable up-regulation of BMP7, which resulted in the attenuation of HNSCC cell invasion.
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Affiliation(s)
- Sung-Min Kang
- Department of Microbiology and Immunology, School of Dentistry, Kyungpook National University, Daegu, Republic of Korea
| | - Jinkyung Kim
- Department of Microbiology and Immunology, School of Dentistry, Kyungpook National University, Daegu, Republic of Korea
| | - Soo Hyun Kang
- Department of Microbiology and Immunology, School of Dentistry, Kyungpook National University, Daegu, Republic of Korea
| | - Su Young Oh
- Department of Microbiology and Immunology, School of Dentistry, Kyungpook National University, Daegu, Republic of Korea
| | - Heon-Jin Lee
- Department of Microbiology and Immunology, School of Dentistry, Kyungpook National University, Daegu, Republic of Korea
| | - Byoung-Mog Kwon
- Laboratory of Chemical Biology and Genomics, Korea Research Institute of Bioscience and Biotechnology, Daejon, Republic of Korea
| | - Su-Hyung Hong
- Department of Microbiology and Immunology, School of Dentistry, Kyungpook National University, Daegu, Republic of Korea
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Yoon YJ, Kim YH, Jin Y, Chi SW, Moon JH, Han DC, Kwon BM. 2′-hydroxycinnamaldehyde inhibits cancer cell proliferation and tumor growth by targeting the pyruvate kinase M2. Cancer Lett 2018; 434:42-55. [DOI: 10.1016/j.canlet.2018.07.015] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2018] [Revised: 06/20/2018] [Accepted: 07/09/2018] [Indexed: 12/29/2022]
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14
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Kim YH, Yoon YJ, Lee YJ, Kim CH, Lee S, Choung DH, Han DC, Kwon BM. Piperlongumine derivative, CG-06, inhibits STAT3 activity by direct binding to STAT3 and regulating the reactive oxygen species in DU145 prostate carcinoma cells. Bioorg Med Chem Lett 2018; 28:2566-2572. [PMID: 29807795 DOI: 10.1016/j.bmcl.2018.05.025] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Revised: 05/11/2018] [Accepted: 05/12/2018] [Indexed: 12/15/2022]
Abstract
Piperlongumine (PL), isolated from Piper longum L., is receiving intense interest due to its selectively ability to kill cancer cells but not normal cells. We synthesized a number of analogues by replacing the cyclic amide of PL with aliphatic amides to explore structural diversity. Compound CG-06 had the strongest cytotoxic profile of this series, showing potent effects in human prostate cancer DU-145 cells, in which signal transducer and activator of transcription 3 (STAT3) is constitutively active. CG-06 inhibited STAT3 phosphorylation at tyrosine 705 in a dose- and time dependent manner in DU-145 cells and suppressed IL-6-induced STAT3 phosphorylation at Tyr-705 in DU-145 and LNCaP cell lines. CG-06 decreased the expression levels of STAT3 target genes, such as cyclin A, Bcl-2, and survivin. Notably, we used drug affinity responsive target stability (DARTS) to show that CG-06 binds directly to STAT3, and the reactive oxygen species (ROS) scavenger N-acetyl cysteine (NAC) rescued the CG-06-induced suppression p-STAT3. Our results suggest that CG-06 is a novel inhibitor of STAT3 and may be a useful lead molecule for the development of a therapeutic STAT3 inhibitor.
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Affiliation(s)
- Young Hwan Kim
- Laboratory of Chemical Biology and Genomics, Korea Research Institute of Bioscience and Biotechnology, Daejeon 34141, Republic of Korea; Department of Biology, Chungnam National University, Daejeon, Republic of Korea
| | - Yae Jin Yoon
- Laboratory of Chemical Biology and Genomics, Korea Research Institute of Bioscience and Biotechnology, Daejeon 34141, Republic of Korea
| | - Yu-Jin Lee
- Laboratory of Chemical Biology and Genomics, Korea Research Institute of Bioscience and Biotechnology, Daejeon 34141, Republic of Korea
| | - Cheol-Hee Kim
- Department of Biology, Chungnam National University, Daejeon, Republic of Korea
| | - Sangku Lee
- Laboratory of Chemical Biology and Genomics, Korea Research Institute of Bioscience and Biotechnology, Daejeon 34141, Republic of Korea
| | - Dong Ho Choung
- Laboratory of Chemical Biology and Genomics, Korea Research Institute of Bioscience and Biotechnology, Daejeon 34141, Republic of Korea
| | - Dong Cho Han
- Laboratory of Chemical Biology and Genomics, Korea Research Institute of Bioscience and Biotechnology, Daejeon 34141, Republic of Korea; Korea University of Science and Technology, Daejeon, Republic of Korea.
| | - Byoung-Mog Kwon
- Laboratory of Chemical Biology and Genomics, Korea Research Institute of Bioscience and Biotechnology, Daejeon 34141, Republic of Korea; Korea University of Science and Technology, Daejeon, Republic of Korea.
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15
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Jung J, Kim Y, Song J, Yoon YJ, Kim DE, Kim JA, Jin Y, Lee YJ, Kim S, Kwon BM, Han DC. KRIBB53 binds to OCT4 and enhances its degradation through the proteasome, causing apoptotic cell death of OCT4-positive testicular germ cell tumors. Carcinogenesis 2018; 39:838-849. [DOI: 10.1093/carcin/bgy054] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2018] [Accepted: 04/11/2018] [Indexed: 12/20/2022] Open
Affiliation(s)
- Jiyae Jung
- Personalized Genomic Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, Yuseong-gu, Daejeon, Korea
- University of Science and Technology in Korea, Korea Research Institute of Bioscience and Biotechnology, Yuseong-gu, Daejeon, Korea
| | - Youngmi Kim
- Personalized Genomic Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, Yuseong-gu, Daejeon, Korea
- University of Science and Technology in Korea, Korea Research Institute of Bioscience and Biotechnology, Yuseong-gu, Daejeon, Korea
| | - Jinhoi Song
- University of Science and Technology in Korea, Korea Research Institute of Bioscience and Biotechnology, Yuseong-gu, Daejeon, Korea
- Aging Research Center, Korea Research Institute of Bioscience and Biotechnology, Yuseong-gu, Daejeon, Korea
| | - Yae Jin Yoon
- Genome Editing Research Center, Korea Research Institute of Bioscience and Biotechnology, Yuseong-gu, Daejeon, Korea
| | - Da-Eun Kim
- Personalized Genomic Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, Yuseong-gu, Daejeon, Korea
- University of Science and Technology in Korea, Korea Research Institute of Bioscience and Biotechnology, Yuseong-gu, Daejeon, Korea
| | - Joo Ae Kim
- Personalized Genomic Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, Yuseong-gu, Daejeon, Korea
- University of Science and Technology in Korea, Korea Research Institute of Bioscience and Biotechnology, Yuseong-gu, Daejeon, Korea
| | - Yena Jin
- University of Science and Technology in Korea, Korea Research Institute of Bioscience and Biotechnology, Yuseong-gu, Daejeon, Korea
- Aging Research Center, Korea Research Institute of Bioscience and Biotechnology, Yuseong-gu, Daejeon, Korea
| | - Yu-Jin Lee
- Genome Editing Research Center, Korea Research Institute of Bioscience and Biotechnology, Yuseong-gu, Daejeon, Korea
| | - Seokho Kim
- Aging Research Center, Korea Research Institute of Bioscience and Biotechnology, Yuseong-gu, Daejeon, Korea
| | - Byoung-Mog Kwon
- University of Science and Technology in Korea, Korea Research Institute of Bioscience and Biotechnology, Yuseong-gu, Daejeon, Korea
- Genome Editing Research Center, Korea Research Institute of Bioscience and Biotechnology, Yuseong-gu, Daejeon, Korea
| | - Dong Cho Han
- Personalized Genomic Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, Yuseong-gu, Daejeon, Korea
- University of Science and Technology in Korea, Korea Research Institute of Bioscience and Biotechnology, Yuseong-gu, Daejeon, Korea
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16
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Jin Y, Kim YH, Park JY, Lee YJ, Oh HM, Choi SK, Han DC, Kwon BM. Methyllucidone inhibits STAT3 activity by regulating the expression of the protein tyrosine phosphatase MEG2 in DU145 prostate carcinoma cells. Bioorg Med Chem Lett 2018; 28:853-857. [PMID: 29456111 DOI: 10.1016/j.bmcl.2018.02.012] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2017] [Revised: 02/06/2018] [Accepted: 02/07/2018] [Indexed: 01/13/2023]
Abstract
During the search for signal transducer and activator of transcription 3 (STAT3) inhibitors from natural products, methyllucidone, isolated from Lindera species (Lauraceae), was identified as a STAT3 inhibitor. Methyllucidone inhibited STAT3 phosphorylation at tyrosine 705 in a dose- and time dependent manner in DU145 prostate cancer cells and suppressed IL-6-induced STAT3 phosphorylation at Tyr-705 in LNCaP cells. Methyllucidone decreased the expression levels of STAT3 target genes, such as cyclin D1, cyclin A, Bcl-2, Mcl-1, and survivin. Methyllucidone inhibited DU145 cell growth and induced apoptosis by arresting the cell cycle at G1 phase. Notably, knockdown of the MEG2 gene by small interfering RNA suppressed the ability of methyllucidone to inhibit STAT3 activation. Methyllucidone regulates STAT3 activity by modulating MEG2 expression, and our results suggest that this compound is a novel inhibitor of the STAT3 pathway and may be a useful lead molecule for the development of a therapeutic STAT3 inhibitor.
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Affiliation(s)
- Yena Jin
- Laboratory of Chemical Biology and Genomics, Korea Research Institute of Bioscience and Biotechnology, Daejeon 34141, Republic of Korea; Korea University of Science and Technology, Daejeon, Republic of Korea
| | - Young Hwan Kim
- Laboratory of Chemical Biology and Genomics, Korea Research Institute of Bioscience and Biotechnology, Daejeon 34141, Republic of Korea; Department of Biology, Chungnam National University, Daejeon, Republic of Korea
| | - Jin Yong Park
- Laboratory of Chemical Biology and Genomics, Korea Research Institute of Bioscience and Biotechnology, Daejeon 34141, Republic of Korea; Korea University of Science and Technology, Daejeon, Republic of Korea
| | - Yu-Jin Lee
- Laboratory of Chemical Biology and Genomics, Korea Research Institute of Bioscience and Biotechnology, Daejeon 34141, Republic of Korea
| | - Hyun-Mi Oh
- Laboratory of Chemical Biology and Genomics, Korea Research Institute of Bioscience and Biotechnology, Daejeon 34141, Republic of Korea
| | - Sung-Kyu Choi
- Laboratory of Chemical Biology and Genomics, Korea Research Institute of Bioscience and Biotechnology, Daejeon 34141, Republic of Korea
| | - Dong Cho Han
- Laboratory of Chemical Biology and Genomics, Korea Research Institute of Bioscience and Biotechnology, Daejeon 34141, Republic of Korea; Korea University of Science and Technology, Daejeon, Republic of Korea.
| | - Byoung-Mog Kwon
- Laboratory of Chemical Biology and Genomics, Korea Research Institute of Bioscience and Biotechnology, Daejeon 34141, Republic of Korea; Korea University of Science and Technology, Daejeon, Republic of Korea.
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17
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Jin Y, Yoon YJ, Jeon YJ, Choi J, Lee YJ, Lee J, Choi S, Nash O, Han DC, Kwon BM. Geranylnaringenin (CG902) inhibits constitutive and inducible STAT3 activation through the activation of SHP-2 tyrosine phosphatase. Biochem Pharmacol 2017; 142:46-57. [DOI: 10.1016/j.bcp.2017.06.131] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2017] [Accepted: 06/23/2017] [Indexed: 12/19/2022]
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18
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Lee YJ, Kang YR, Lee SY, Jin Y, Han DC, Kwon BM. Ginkgetin induces G2-phase arrest in HCT116 colon cancer cells through the modulation of b‑Myb and miRNA34a expression. Int J Oncol 2017; 51:1331-1342. [PMID: 28902363 DOI: 10.3892/ijo.2017.4116] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2017] [Accepted: 07/26/2017] [Indexed: 11/06/2022] Open
Abstract
Ginkgetin has been reported to display antitumor activity. However, the relevant pathway integrating cell cycle regulation and signaling pathways involved in growth inhibition in CRC cells remains to be identified. In this study, ginkgetin-treated HCT116 CRC cells exhibited significant dose-dependent growth inhibition with a GI50 value of 4.0 µM for 48-h treatment, together with apoptosis, via G2-phase cell cycle arrest. When HCT116 cells were treated with 10 µM ginkgetin for 48 h, the percentage of cells in G2/M phase increased by 2.2-fold (43.25%) versus the untreated control (19.69%). Ginkgetin regulated the expression of genes that are critically involved in G2 phase arrest cells, such as b‑Myb, CDC2 and cyclin B1. Furthermore, we found that the suppression of b‑Myb expression by ginkgetin was rescued ~5.1-fold by treatment with a miR-34a inhibitor (500 nM) and b‑Myb was downregulated by >80% by 100 nM miR‑34a mimic. These data suggest that the miRNA34a/b‑Myb/cyclin B1 cascade plays a critical role in ginkgetin-induced G2 cell cycle arrest, as well as in the inhibition of HCT116 cell proliferation. Moreover, the administration of ginkgetin (10 mg/kg) reduced tumor volumes by 36.5% and tumor weight by 37.6% in the mice xenografted with HCT116 cells relative to their vehicle-treated counterparts. Therefore, ginkgetin is the first compound shown to regulate b‑Myb by modulating miR-34a, and we suggest the use of ginkgetin as an inducer of G2 arrest for the treatment of CRC.
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Affiliation(s)
- Yu-Jin Lee
- Laboratory of Chemical Biology and Genomics, Korea Research Institute of Bioscience and Biotechnology, Daejeon 34141, Republic of Korea
| | - Yeong-Rim Kang
- Laboratory of Chemical Biology and Genomics, Korea Research Institute of Bioscience and Biotechnology, Daejeon 34141, Republic of Korea
| | - So Young Lee
- Laboratory of Chemical Biology and Genomics, Korea Research Institute of Bioscience and Biotechnology, Daejeon 34141, Republic of Korea
| | - Yena Jin
- Laboratory of Chemical Biology and Genomics, Korea Research Institute of Bioscience and Biotechnology, Daejeon 34141, Republic of Korea
| | - Dong Cho Han
- Laboratory of Chemical Biology and Genomics, Korea Research Institute of Bioscience and Biotechnology, Daejeon 34141, Republic of Korea
| | - Byoung-Mog Kwon
- Laboratory of Chemical Biology and Genomics, Korea Research Institute of Bioscience and Biotechnology, Daejeon 34141, Republic of Korea
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19
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Park Y, Woo SH, Seo SK, Kim H, Noh WC, Lee JK, Kwon BM, Min KN, Choe TB, Park IC. Ginkgetin induces cell death in breast cancer cells via downregulation of the estrogen receptor. Oncol Lett 2017; 14:5027-5033. [PMID: 29085516 DOI: 10.3892/ol.2017.6742] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2016] [Accepted: 06/15/2017] [Indexed: 01/08/2023] Open
Abstract
Ginkgetin is a natural biflavonoid isolated from the leaves of Ginkgo biloba, and is characterized by its anti-inflammatory and anti-viral activities. Although numerous studies state that it has also antitumor activity, the anti-proliferative effect of ginkgetin and the underlying mechanism in breast cancer cells have not yet been investigated. In the present study, ginkgetin inhibited the cell viability of MCF-7 and T-47D cells dose-dependently, and suppressed the expression of the estrogen receptor (ER) at the mRNA and protein levels. Among the targets of the ER, 6-phosphofructo-2-kinase/fructose-2,6-bisphosphatase 3 (PFKFB3), cyclin D1 and survivin were also downregulated by ginkgetin treatment. The anti-proliferative effects of ginkgetin were sufficient to suppress the growth by estradiol stimulation. However, ginkgetin did not significantly affect the viability of MDA-MB-231 cells, which are ER-negative cells. Furthermore, the knockdown of the ER and an inhibitor of PFKFB3 significantly sensitized MCF-7 and T-47D cells to ginkgetin. These findings suggest that ginkgetin induces cell death in ER-positive breast cancer cells via the inhibition of ER expression and that it is a promising agent for breast cancer treatment.
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Affiliation(s)
- Yoonhwa Park
- Division of Radiation Cancer Research, Korea Institute of Radiological and Medical Sciences, Nowon, Seoul, Gyeonggi 01812, Republic of Korea.,School of Life Science and Biotechnology, Korea University, Seongbuk, Seoul, Gyeonggi 02841, Republic of Korea
| | - Sang Hyeok Woo
- Division of Radiation Cancer Research, Korea Institute of Radiological and Medical Sciences, Nowon, Seoul, Gyeonggi 01812, Republic of Korea.,KIRAMS Radiation Biobank, Korea Institute of Radiological and Medical Sciences, Nowon, Seoul, Gyeonggi 01812, Republic of Korea
| | - Sung-Keum Seo
- Division of Radiation Cancer Research, Korea Institute of Radiological and Medical Sciences, Nowon, Seoul, Gyeonggi 01812, Republic of Korea
| | - Hyunggee Kim
- School of Life Science and Biotechnology, Korea University, Seongbuk, Seoul, Gyeonggi 02841, Republic of Korea
| | - Woo Chul Noh
- Department of Surgery, Korea Cancer Center Hospital, Korea Institute of Radiological and Medical Sciences, Nowon, Seoul, Gyeonggi 01812, Republic of Korea
| | - Jin Kyung Lee
- KIRAMS Radiation Biobank, Korea Institute of Radiological and Medical Sciences, Nowon, Seoul, Gyeonggi 01812, Republic of Korea
| | - Byoung-Mog Kwon
- Laboratory of Chemical Biology and Genomics, Korea Research Institute of Bioscience and Biotechnology, Yuseong, Daejeon, Chungcheong 34141, Republic of Korea
| | - Kyung Nam Min
- Department of Microbiological Engineering, Kon-Kuk University, Gwangjin, Seoul, Gyeonggi 05029, Republic of Korea
| | - Tae-Boo Choe
- Department of Microbiological Engineering, Kon-Kuk University, Gwangjin, Seoul, Gyeonggi 05029, Republic of Korea
| | - In-Chul Park
- Division of Radiation Cancer Research, Korea Institute of Radiological and Medical Sciences, Nowon, Seoul, Gyeonggi 01812, Republic of Korea
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20
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Porta F, Facchetti G, Ferri N, Gelain A, Meneghetti F, Villa S, Barlocco D, Masciocchi D, Asai A, Miyoshi N, Marchianò S, Kwon BM, Jin Y, Gandin V, Marzano C, Rimoldi I. An in vivo active 1,2,5-oxadiazole Pt(II) complex: A promising anticancer agent endowed with STAT3 inhibitory properties. Eur J Med Chem 2017; 131:196-206. [DOI: 10.1016/j.ejmech.2017.03.017] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2017] [Revised: 03/09/2017] [Accepted: 03/10/2017] [Indexed: 01/04/2023]
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21
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Kim J, Lee YJ, Kim JM, Lee SY, Bae MA, Ahn JH, Han DC, Kwon BM. PPARγ agonists induce adipocyte differentiation by modulating the expression of Lipin-1, which acts as a PPARγ phosphatase. Int J Biochem Cell Biol 2016; 81:57-66. [PMID: 27780754 DOI: 10.1016/j.biocel.2016.10.018] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2016] [Revised: 09/28/2016] [Accepted: 10/21/2016] [Indexed: 11/20/2022]
Abstract
PPARγ agonists induced obesity in animal models as a side effect. Microarray experiments reveal that PPARγ agonist upregulates the expression of lipin-1 and this upregulation is correlated with the activity of the agonists. Lipin-1 induced by PPARγ agonists decreased the levels of PPARγ and ERK1/2 phosphorylation through direct interaction with these proteins in 3T3-L1 cells. In PPARγ agonist-treated 3T3-L1 preadipocytes, the knockdown of lipin-1 expression by small interfering RNA inhibited the adipogenesis that was induced by PPARγ agonists. In contrast, PPARγ2 expression was increased, and lipid droplets were accumulated in lipin-1-overexpressing 3T3-L1 adipocytes. Rosiglitazone (RGZ), a strong PPARγ agonist, synergistically promoted PPARγ dephosphorylation and adipogenesis in lipin-1-overexpressing 3T3-L1 preadipocytes. Therefore, lipin-1 has dual functions as a transcriptional cofactor and phosphatidate phosphatase (PAP) in the differentiation of preadipocyte cells induced by strong PPARγ agonists. In addition, the adipogenesis of 3T3-L1 cells was markedly upregulated by diacylglycerol (DAG), which was produced by lipin-1. Therefore, lipin-1 induction by PPARγ agonists might be an important factor in understanding the biological mechanism of the agonists' adverse effects, and this information may be valuable in the development of type-2 diabetes mellitus (T2DM) therapeutics with reduced adverse effects and greater tolerability.
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Affiliation(s)
- Jina Kim
- Laboratory of Chemical Biology and Genomics, Korea Research Institute of Bioscience and Biotechnology, Daejeon, 34141, Republic of Korea
| | - Yu-Jin Lee
- Laboratory of Chemical Biology and Genomics, Korea Research Institute of Bioscience and Biotechnology, Daejeon, 34141, Republic of Korea; University of Science and Technology in Korea, Republic of Korea
| | - Jung Min Kim
- Laboratory of Chemical Biology and Genomics, Korea Research Institute of Bioscience and Biotechnology, Daejeon, 34141, Republic of Korea
| | - So Young Lee
- Laboratory of Chemical Biology and Genomics, Korea Research Institute of Bioscience and Biotechnology, Daejeon, 34141, Republic of Korea
| | - Myung-Ae Bae
- Korea Research Institute of Chemical Technology, Daejeon, 34114, Republic of Korea
| | - Jin Hee Ahn
- Korea Research Institute of Chemical Technology, Daejeon, 34114, Republic of Korea
| | - Dong Cho Han
- Laboratory of Chemical Biology and Genomics, Korea Research Institute of Bioscience and Biotechnology, Daejeon, 34141, Republic of Korea; University of Science and Technology in Korea, Republic of Korea
| | - Byoung-Mog Kwon
- Laboratory of Chemical Biology and Genomics, Korea Research Institute of Bioscience and Biotechnology, Daejeon, 34141, Republic of Korea; University of Science and Technology in Korea, Republic of Korea.
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22
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Kwon B, Han E, Yang W, Cho W, Yoo W, Hwang J, Kwon BM, Lee D. Nano-Fenton Reactors as a New Class of Oxidative Stress Amplifying Anticancer Therapeutic Agents. ACS Appl Mater Interfaces 2016; 8:5887-5897. [PMID: 26888039 DOI: 10.1021/acsami.5b12523] [Citation(s) in RCA: 67] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Cancer cells, compared to normal cells, are under oxidative stress associated with an elevated level of reactive oxygen species (ROS) and are more vulnerable to oxidative stress induced by ROS generating agents. Thus, manipulation of the ROS level provides a logical approach to kill cancer cells preferentially, without significant toxicity to normal cells, and great efforts have been dedicated to the development of strategies to induce cytotoxic oxidative stress for cancer treatment. Fenton reaction is an important biological reaction in which irons convert hydrogen peroxide (H2O2) to highly toxic hydroxyl radicals that escalate ROS stress. Here, we report Fenton reaction-performing polymer (PolyCAFe) micelles as a new class of ROS-manipulating anticancer therapeutic agents. Amphiphilic PolyCAFe incorporates H2O2-generating benzoyloxycinnamaldehyde and iron-containing compounds in its backbone and self-assembles to form micelles that serve as Nano-Fenton reactors to generate cytotoxic hydroxyl radicals, killing cancer cells preferentially. When intravenously injected, PolyCAFe micelles could accumulate in tumors preferentially to remarkably suppress tumor growth, without toxicity to normal tissues. This study demonstrates the tremendous translatable potential of Nano-Fenton reactors as a new class of anticancer drugs.
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Affiliation(s)
- Byeongsu Kwon
- Department of BIN Convergence Technology, Chonbuk National University , Jeonju, Chonbuk 561-756, Republic of Korea
| | - Eunji Han
- Department of BIN Convergence Technology, Chonbuk National University , Jeonju, Chonbuk 561-756, Republic of Korea
| | - Wonseok Yang
- Department of BIN Convergence Technology, Chonbuk National University , Jeonju, Chonbuk 561-756, Republic of Korea
| | - Wooram Cho
- Department of BIN Convergence Technology, Chonbuk National University , Jeonju, Chonbuk 561-756, Republic of Korea
| | - Wooyoung Yoo
- Department of BIN Convergence Technology, Chonbuk National University , Jeonju, Chonbuk 561-756, Republic of Korea
| | - Junyeon Hwang
- Carbon Convergence Materials Research Center, Korea Institute of Science and Technology , Wanju, Chonbuk 565-905, Republic of Korea
| | - Byoung-Mog Kwon
- Laboratory of Biology and Genomics, Korea Research Institute of Bioscience and Biotechnology , Daejeon, 305-806, Republic of Korea
| | - Dongwon Lee
- Department of BIN Convergence Technology, Chonbuk National University , Jeonju, Chonbuk 561-756, Republic of Korea
- Department of Polymer-Nano Science and Technology, Chonbuk National University , Jeonju, Chonbuk 561-756, Republic of Korea
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23
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Hong SH, Ismail IA, Kang SM, Han DC, Kwon BM. Cinnamaldehydes in Cancer Chemotherapy. Phytother Res 2016; 30:754-67. [PMID: 26890810 DOI: 10.1002/ptr.5592] [Citation(s) in RCA: 61] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2015] [Revised: 01/15/2016] [Accepted: 01/22/2016] [Indexed: 12/16/2022]
Abstract
Cinnamaldehyde and cinnamaldehyde-derived compounds are candidates for the development of anticancer drugs that have received extensive research attention. In this review, we summarize recent findings detailing the positive and negative aspects of cinnamaldehyde and its derivatives as potential anticancer drug candidates. Furthermore, we describe the in vivo pharmacokinetics and metabolism of cinnamaldehydes. The oxidative and antioxidative properties of cinnamaldehydes, which contribute to their potential in chemotherapy, have also been discussed. Moreover, the mechanism(s) by which cinnamaldehydes induce apoptosis in cancer cells have been explored. In addition, evidence of the regulatory effects of cinnamaldehydes on cancer cell invasion and metastasis has been described. Finally, the application of cinnamaldehydes in treating various types of cancer, including breast, prostate, and colon cancers, has been discussed in detail. The effects of cinnamaldehydes on leukemia, hepatocellular carcinoma, and oral cancer have been summarized briefly. Copyright © 2016 John Wiley & Sons, Ltd.
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Affiliation(s)
- Su-Hyung Hong
- Department of Oral Microbiology and Immunology, School of Dentistry, Kyungpook National University, Daegu, 700-412, Korea
| | - Ismail Ahmed Ismail
- Department of Oral Microbiology and Immunology, School of Dentistry, Kyungpook National University, Daegu, 700-412, Korea.,Laboratory of Molecular Cell Biology, Department of Zoology, Faculty of Science, Assiut University, Assiut, 71516, Egypt
| | - Sung-Min Kang
- Department of Oral Microbiology and Immunology, School of Dentistry, Kyungpook National University, Daegu, 700-412, Korea
| | - Dong Cho Han
- Laboratory of Chemical Biology and Genomics, Korea Research Institute of Bioscience and Biotechnology, University of Science and Technology in Korea, 125 Gwahakro Yoosunggu, Daejeon, 305-806, Korea
| | - Byoung-Mog Kwon
- Laboratory of Chemical Biology and Genomics, Korea Research Institute of Bioscience and Biotechnology, University of Science and Technology in Korea, 125 Gwahakro Yoosunggu, Daejeon, 305-806, Korea
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Yeo KJ, Jee JG, Park JW, Lee YJ, Ryu KS, Kwon BM, Jeon YH, Cheong HK. The role of the KRSIK motif of human angiogenin in heparin and DNA binding. RSC Adv 2016. [DOI: 10.1039/c6ra14599j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The 50KRSIK54 motif is the main interaction site of hAng for heparin and DNA binding, providing an insight into the potential role of the motif for the internalization and DNA binding of hAng, which is essential for the regulation of angiogenesis.
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Affiliation(s)
- Kwon Joo Yeo
- Protein Structure Group
- Korea Basic Science Institute
- Ochang
- Republic of Korea
- College of Pharmacy
| | - Jun-Goo Jee
- College of Pharmacy
- Kyungpook National University
- Daegu 41566
- Republic of Korea
| | - Jin-Wan Park
- Protein Structure Group
- Korea Basic Science Institute
- Ochang
- Republic of Korea
| | - Yu-Jin Lee
- Korea Research Institute of Bioscience and Biotechnology
- Daejeon
- Republic of Korea
| | - Kyoung-Seok Ryu
- Protein Structure Group
- Korea Basic Science Institute
- Ochang
- Republic of Korea
| | - Byoung-Mog Kwon
- Korea Research Institute of Bioscience and Biotechnology
- Daejeon
- Republic of Korea
| | - Young Ho Jeon
- College of Pharmacy
- Korea University
- Sejong
- Republic of Korea
| | - Hae-Kap Cheong
- Protein Structure Group
- Korea Basic Science Institute
- Ochang
- Republic of Korea
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Nash O, Omotuyi O, Lee J, Kwon BM, Ogbadu L. Artocarpus altilis CG-901 alters critical nodes in the JH1-kinase domain of Janus kinase 2 affecting upstream JAK/STAT3 signaling. J Mol Model 2015; 21:280. [DOI: 10.1007/s00894-015-2821-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2015] [Accepted: 09/14/2015] [Indexed: 11/28/2022]
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Jung SN, Shin DS, Kim HN, Jeon YJ, Yun J, Lee YJ, Kang JS, Han DC, Kwon BM. Sugiol inhibits STAT3 activity via regulation of transketolase and ROS-mediated ERK activation in DU145 prostate carcinoma cells. Biochem Pharmacol 2015. [DOI: 10.1016/j.bcp.2015.06.033] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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Meneghetti F, Villa S, Masciocchi D, Barlocco D, Toma L, Han DC, Kwon BM, Ogo N, Asai A, Legnani L, Gelain A. Ureido-Pyridazinone Derivatives: Insights into the Structural and Conformational Properties for STAT3 Inhibition. European J Org Chem 2015. [DOI: 10.1002/ejoc.201500599] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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Jeon YJ, Jung SN, Yun J, Lee CW, Choi J, Lee YJ, Han DC, Kwon BM. Ginkgetin inhibits the growth of DU-145 prostate cancer cells through inhibition of signal transducer and activator of transcription 3 activity. Cancer Sci 2015; 106:413-20. [PMID: 25611086 PMCID: PMC4409885 DOI: 10.1111/cas.12608] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2014] [Revised: 01/07/2015] [Accepted: 01/09/2015] [Indexed: 12/26/2022] Open
Abstract
Signal transducer and activator of transcription 3 (STAT3) is constitutively activated in human cancers. Therefore, STAT3 is a therapeutic target of cancer drug discovery. We previously reported that natural products inhibited constitutively activated STAT3 in human prostate tumor cells. We used a dual-luciferase assay to screen 200 natural products isolated from herbal medicines and we identified ginkgetin obtained from the leaves of Ginkgo biloba L. as a STAT3 inhibitor. Ginkgetin inhibited both inducible and constitutively activated STAT3 and blocked the nuclear translocation of p-STAT3 in DU-145 prostate cancer cells. Furthermore, ginkgetin selectively inhibited the growth of prostate tumor cells stimulated with activated STAT3. Ginkgetin induced STAT3 dephosphorylation at Try705 and inhibited its localization to the nucleus, leading to the inhibition of expression of STAT3 target genes such as cell survival-related genes (cyclin D1 and survivin) and anti-apoptotic proteins (Bcl-2 and Bcl-xL). Therefore, ginkgetin inhibited the growth of STAT3-activated tumor cells. We also found that ginkgetin inhibited tumor growth in xenografted nude mice and downregulated p-STAT3(Tyr705) and survivin in tumor tissues. This is the first report that ginkgetin exerts antitumor activity by inhibiting STAT3. Therefore, ginkgetin is a good STAT3 inhibitor and may be a useful lead molecule for development of a therapeutic STAT3 inhibitor.
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Affiliation(s)
- Yoon Jung Jeon
- Laboratory of Chemical Biology and Genomics, Korea Research Institute of Bioscience and Biotechnology, Daejeon, Korea; Korea University of Science and Technology, Daejeon, Korea
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Jeon YJ, Jung SN, Chang H, Yun J, Lee CW, Lee J, Choi S, Nash O, Han DC, Kwon BM. Artocarpus altilis(Parkinson) Fosberg Extracts and Geranyl Dihydrochalcone Inhibit STAT3 Activity in Prostate Cancer DU145 Cells. Phytother Res 2015; 29:749-56. [DOI: 10.1002/ptr.5311] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2014] [Revised: 01/02/2015] [Accepted: 01/25/2015] [Indexed: 12/21/2022]
Affiliation(s)
- Yoon Jung Jeon
- Laboratory of Chemical Biology and Genomics; Korea Research Institute of Bioscience and Biotechnology, University of Science and Technology; 125 Gwahakro Yoosunggu Daejeon 305-600 Republic of Korea
| | - Seung-Nam Jung
- Laboratory of Chemical Biology and Genomics; Korea Research Institute of Bioscience and Biotechnology, University of Science and Technology; 125 Gwahakro Yoosunggu Daejeon 305-600 Republic of Korea
| | - Hyeyoun Chang
- Laboratory of Chemical Biology and Genomics; Korea Research Institute of Bioscience and Biotechnology, University of Science and Technology; 125 Gwahakro Yoosunggu Daejeon 305-600 Republic of Korea
| | - Jieun Yun
- Bio-Evaluation Center; Korea Research Institute of Bioscience and Biotechnology; Daejeon Republic of Korea
| | - Chang Woo Lee
- Bio-Evaluation Center; Korea Research Institute of Bioscience and Biotechnology; Daejeon Republic of Korea
| | - Joonku Lee
- International Biological Material Research Center, Korea Research Institute of Bioscience and Biotechnology; Daejeon Republic of Korea
| | - Sangho Choi
- International Biological Material Research Center, Korea Research Institute of Bioscience and Biotechnology; Daejeon Republic of Korea
| | - Oyekanmi Nash
- Institute for Advanced Medical Research and Training, College of Medicine; University of Ibadan; Ibadan Nigeria
| | - Dong Cho Han
- Laboratory of Chemical Biology and Genomics; Korea Research Institute of Bioscience and Biotechnology, University of Science and Technology; 125 Gwahakro Yoosunggu Daejeon 305-600 Republic of Korea
| | - Byoung-Mog Kwon
- Laboratory of Chemical Biology and Genomics; Korea Research Institute of Bioscience and Biotechnology, University of Science and Technology; 125 Gwahakro Yoosunggu Daejeon 305-600 Republic of Korea
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Park S, Kwon B, Yang W, Han E, Yoo W, Kwon BM, Lee D. Dual pH-sensitive oxidative stress generating micellar nanoparticles as a novel anticancer therapeutic agent. J Control Release 2014; 196:19-27. [DOI: 10.1016/j.jconrel.2014.09.017] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2014] [Revised: 09/06/2014] [Accepted: 09/21/2014] [Indexed: 12/29/2022]
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Kwon BM, Lee YJ. Abstract 4562: Ginkgetin inhibits the growth of cancer cells via the cell cycle arrest at G2-phase. Cancer Res 2014. [DOI: 10.1158/1538-7445.am2014-4562] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Ginkgetin, isolated from herbal medicines, has been reported to play a role in antitumor activity. However, the relevant pathway integrating cell cycle regulation and signaling pathways involved in growth inhibition in cancer cells remains to be identified. In the present study, ginkgetin treatment of colon cancer cells resulted in significant dose-dependent growth inhibition together with apoptosis, G2-phase cell cycle arrest at a 5 μM (IC50) dose in HCT116colon cancer cells and ginkgetin also inhibits tumor growth in a mouse xenograft model of HCT116 cells. We found that ginkgetin regulated the expression of genes which are critically involved in cell cycle, cell signaling transduction, and cell proliferation using DNA microarray analysis. Furthermore, we provided evidence that ginkgetin inhibited BUB3, cyclin B, CDC2, and b-Myb expression. Especially ginkgetin induced G2-phase arrest by down-regulates expression of b-Myb Our data have suggested that ginkgetin exerts its anticancer effects through induction of cell cycle arrest at G2 phase as well as inhibition cell proliferation.
Note: This abstract was not presented at the meeting.
Citation Format: Byoung-Mog Kwon, Yu-Jin Lee. Ginkgetin inhibits the growth of cancer cells via the cell cycle arrest at G2-phase. [abstract]. In: Proceedings of the 105th Annual Meeting of the American Association for Cancer Research; 2014 Apr 5-9; San Diego, CA. Philadelphia (PA): AACR; Cancer Res 2014;74(19 Suppl):Abstract nr 4562. doi:10.1158/1538-7445.AM2014-4562
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Kang HS, Kim J, Lee HJ, Kwon BM, Lee DK, Hong SH. LRP1-dependent pepsin clearance induced by 2'-hydroxycinnamaldehyde attenuates breast cancer cell invasion. Int J Biochem Cell Biol 2014; 53:15-23. [PMID: 24796846 DOI: 10.1016/j.biocel.2014.04.021] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2014] [Revised: 04/08/2014] [Accepted: 04/26/2014] [Indexed: 12/20/2022]
Abstract
2'-Hydroxycinnamaldehyde inhibits breast cancer cell invasion. This study examined whether 2'-hydroxycinnamaldehyde, acting as a Michael acceptor, interferes with the ligand binding of low-density lipoprotein receptor-related protein 1 to mediate breast cancer cell invasion. Low-density lipoprotein receptor-related protein 1, one of the direct molecular targets of 2'-hydroxycinnamaldehyde, is a multifunctional endocytic receptor. Changes in the thiol oxidation status of cell surface receptor proteins may function as a molecular switch, influencing ligand(s) binding. The oxidation status of extracellular cysteine thiol groups in MCF-7 and MDA-MB-231 cells was examined using a fluorescence-activated cell sorter with thiol-specific fluorescent probes; Matrigel invasion and wound-healing assays were performed to determine the effects of 2'-hydroxycinnamaldehyde on in vitro cell migration. The molecular mechanisms by which 2'-hydroxycinnamaldehyde acts were evaluated by transient knockdown using siRNA or inhibition of low-density lipoprotein receptor-related protein 1 by receptor-associated protein treatment. 2'-Hydroxycinnamaldehyde increased α-2-macroglobulin binding to low-density lipoprotein receptor-related protein 1, which was alleviated by pretreatment of cells with N-acetylcystein. 2'-Hydroxycinnamaldehyde decreased the extracellular pepsin concentration significantly in a low-density lipoprotein receptor-related protein 1- and α-2-macroglobulin-dependent manner. The anti-invasive effect of 2'-hydroxycinnamaldehyde was mitigated with receptor-associated protein pretreatment, suggesting that low-density lipoprotein receptor-related protein 1 is essential for the effects of 2'-hydroxycinnamaldehyde. From these data, we suggest that 2'-hydroxycinnamaldehyde increases the cysteine thiol oxidation status of low-density lipoprotein receptor-related protein 1 extracellular domains, which results in α-2-macroglobulin ligand binding stimulation. Therefore, pepsin clearance in a low-density lipoprotein receptor-related protein 1-α-2-macroglobulin-dependent manner might be an important molecular mechanism in 2'-hydroxycinnamaldehyde exerting its anti-invasive action on breast cancer cells. Furthermore, our data may provide an opportunity to promote the importance of the thiol oxidation status of cell surface receptor proteins for regulating cellular signaling pathways that are important in cancer progression.
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Affiliation(s)
- Hye Suk Kang
- Department of Oral Microbiology, School of Dentistry, Kyungpook National University, Daegu 700-412, South Korea; Global Research Laboratory for RNAi Medicine, Department of Chemistry, Sungkyunkwan University, Suwon 440-746, South Korea
| | - JinKyoung Kim
- Department of Oral Microbiology, School of Dentistry, Kyungpook National University, Daegu 700-412, South Korea
| | - Heon-Jin Lee
- Department of Oral Microbiology, School of Dentistry, Kyungpook National University, Daegu 700-412, South Korea
| | - Byoung-Mog Kwon
- Laboratory of Chemical Biology and Genomics, Korea Research Institute of Bioscience and Biotechnology, University of Science and Technology in Korea, Daejon 305-806, South Korea
| | - Dong-Ki Lee
- Global Research Laboratory for RNAi Medicine, Department of Chemistry, Sungkyunkwan University, Suwon 440-746, South Korea
| | - Su-Hyung Hong
- Department of Oral Microbiology, School of Dentistry, Kyungpook National University, Daegu 700-412, South Korea.
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Kim J, Kang HS, Lee YJ, Lee HJ, Yun J, Shin JH, Lee CW, Kwon BM, Hong SH. EGR1-dependent PTEN upregulation by 2-benzoyloxycinnamaldehyde attenuates cell invasion and EMT in colon cancer. Cancer Lett 2014; 349:35-44. [PMID: 24704156 DOI: 10.1016/j.canlet.2014.03.025] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2014] [Revised: 03/17/2014] [Accepted: 03/23/2014] [Indexed: 01/17/2023]
Abstract
There has been little evidence to support EGR1 and PTEN function on the EMT of cancer cells. We tried to evaluate how these genes affect cancer cell invasion and EMT through investigating the molecular mechanism(s) of 2'-benzoyloxycinnamaldehyde (BCA). Matrigel invasion and wound healing assay, and in vivo mice model were used to evaluate the effect of BCA on colon cancer cell migration. The molecular mechanism(s) of BCA were evaluated by knock-down or overexpression of EGR1 and PTEN. BCA at 50 nM increased E-cadherin and EGR1 expression without cytotoxicity. Cell migration was inhibited significantly by BCA both in vitro and in vivo. Moreover, BCA inhibits Snail and Vimentin expression, as well as β-catenin nuclear accumulation. Suppression of EGR1 by siRNA attenuated the inhibition of matrigel invasion by BCA, indicating that EGR1 is responsible for BCA effect. PTEN was upregulated by BCA treatment or EGR1 overexpression. In addition, shPTEN transfection stimulated EMT and cell invasion in vitro. Our data suggest that BCA leads to a remarkable upregulation of EGR1 expression, and that EMT and invasion is decreased via EGR1-dependent PTEN activation. These data showed a critical role of EGR1-PTEN signaling pathway in the EMT of colon cancer, as well as metastasis.
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Affiliation(s)
- Jinkyung Kim
- Department of Oral Microbiology, School of Dentistry, Kyungpook National University, Daegu 700-412, South Korea.
| | - Hye Suk Kang
- Department of Oral Microbiology, School of Dentistry, Kyungpook National University, Daegu 700-412, South Korea.
| | - Yu-Jin Lee
- Laboratory of Chemical Biology and Genomics, Korea Research Institute of Bioscience and Biotechnology, Daejon 305-806, South Korea.
| | - Heon-Jin Lee
- Department of Oral Microbiology, School of Dentistry, Kyungpook National University, Daegu 700-412, South Korea.
| | - Jieun Yun
- Bioevaluation Center, Korea Research Institute of Bioscience and Biotechnology, Ochang, Cheongwon, Chungbuk 363-883, South Korea.
| | - Jung Hyu Shin
- Bioevaluation Center, Korea Research Institute of Bioscience and Biotechnology, Ochang, Cheongwon, Chungbuk 363-883, South Korea.
| | - Chang Woo Lee
- Bioevaluation Center, Korea Research Institute of Bioscience and Biotechnology, Ochang, Cheongwon, Chungbuk 363-883, South Korea.
| | - Byoung-Mog Kwon
- Laboratory of Chemical Biology and Genomics, Korea Research Institute of Bioscience and Biotechnology, Daejon 305-806, South Korea.
| | - Su-Hyung Hong
- Department of Oral Microbiology, School of Dentistry, Kyungpook National University, Daegu 700-412, South Korea.
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Affiliation(s)
- Eunkyo Park
- Department of Home Economics, Graduate School, Chung-Ang University, Seoul 156-756, Korea
| | - Byoung-Mog Kwon
- Division of Biomedical Convergent, Korea Research Institute of Bioscience & Biotechnology, Daejeon 305-806, Korea
| | - In-Kyung Jung
- Department of Physical Education, Chung-Ang University, Seoul 156-756, Korea
| | - Jung-Hyun Kim
- Department of Physical Education, Chung-Ang University, Seoul 156-756, Korea
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Dell'Orto S, Masciocchi D, Villa S, Meneghetti F, Celentano G, Barlocco D, Colombo D, Legnani L, Toma L, Jeon YJ, Kwon BM, Asai A, Gelain A. Modeling, synthesis and NMR characterization of novel chimera compounds targeting STAT3. Med Chem Commun 2014. [DOI: 10.1039/c4md00177j] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Chimera derivatives as potential STAT3 inhibitors.
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Affiliation(s)
- Silvia Dell'Orto
- Dipartimento di Scienze Farmaceutiche
- Università degli Studi di Milano
- 20133 Milano, Italy
| | - Daniela Masciocchi
- Dipartimento di Scienze Farmaceutiche
- Università degli Studi di Milano
- 20133 Milano, Italy
| | - Stefania Villa
- Dipartimento di Scienze Farmaceutiche
- Università degli Studi di Milano
- 20133 Milano, Italy
| | - Fiorella Meneghetti
- Dipartimento di Scienze Farmaceutiche
- Università degli Studi di Milano
- 20133 Milano, Italy
| | - Giuseppe Celentano
- Dipartimento di Scienze Farmaceutiche
- Università degli Studi di Milano
- 20133 Milano, Italy
| | - Daniela Barlocco
- Dipartimento di Scienze Farmaceutiche
- Università degli Studi di Milano
- 20133 Milano, Italy
| | - Diego Colombo
- Dipartimento di Biotecnologie Mediche e Medicina Traslazionale
- Università degli Studi di Milano
- 20133 Milano, Italy
| | - Laura Legnani
- Dipartimento di Biotecnologie Mediche e Medicina Traslazionale
- Università degli Studi di Milano
- 20133 Milano, Italy
- Dipartimento di Chimica
- Università degli Studi di Pavia
| | - Lucio Toma
- Dipartimento di Chimica
- Università degli Studi di Pavia
- 27100 Pavia, Italy
| | - Yoon Jung Jeon
- Laboratory of Chemical Biology and Genomics
- Korea Research Institute of Bioscience & Biotechnology and Department of Biomolecular Science
- Korea University of Science and Technology
- DaeJeon 305-333, South Korea
| | - Byoung-Mog Kwon
- Laboratory of Chemical Biology and Genomics
- Korea Research Institute of Bioscience & Biotechnology and Department of Biomolecular Science
- Korea University of Science and Technology
- DaeJeon 305-333, South Korea
| | - Akira Asai
- Center for Drug Discovery
- Graduate School of Pharmaceutical Sciences
- University of Shizuoka
- Shizuoka, Japan
| | - Arianna Gelain
- Dipartimento di Scienze Farmaceutiche
- Università degli Studi di Milano
- 20133 Milano, Italy
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Kim HJ, Hong JM, Yoon HJ, Kwon BM, Choi JY, Lee IK, Kim SY. Inhibitory effects of obovatol on osteoclast differentiation and bone resorption. Eur J Pharmacol 2014; 723:473-80. [DOI: 10.1016/j.ejphar.2013.10.027] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2013] [Revised: 10/02/2013] [Accepted: 10/16/2013] [Indexed: 12/12/2022]
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Kim JA, Kim Y, Kwon BM, Han DC. The natural compound cantharidin induces cancer cell death through inhibition of heat shock protein 70 (HSP70) and Bcl-2-associated athanogene domain 3 (BAG3) expression by blocking heat shock factor 1 (HSF1) binding to promoters. J Biol Chem 2013; 288:28713-26. [PMID: 23983126 DOI: 10.1074/jbc.m113.488346] [Citation(s) in RCA: 74] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Heat shock factor 1 (HSF1) enhances the survival of cancer cells under various stresses. The knock-out of HSF1 impairs cancer formation and progression, suggesting that HSF1 is a promising therapeutic target. To identify inhibitors of HSF1 activity, we performed cell-based screening with a library of marketed and experimental drugs and identified cantharidin as an HSF1 inhibitor. Cantharidin is a potent antitumor agent from traditional Chinese medicine. Cantharidin inhibited heat shock-induced luciferase activity with an IC50 of 4.2 μm. In contrast, cantharidin did not inhibit NF-κB luciferase reporter activity, demonstrating that cantharidin is not a general transcription inhibitor. When the HCT-116 colorectal cancer cells were exposed to heat shock in the presence of cantharidin, the induction of HSF1 downstream target proteins, such as HSP70 and BAG3 (Bcl-2-associated athanogene domain 3), was suppressed. HSP70 and its co-chaperone BAG3 have been reported to protect cells from apoptosis by stabilizing anti-apoptotic Bcl-2 family proteins. As expected, treating HCT-116 cancer cells with cantharidin significantly decreased the amounts of BCL-2, BCL-xL, and MCL-1 protein and induced apoptotic cell death. Chromatin immunoprecipitation analysis showed that cantharidin inhibited the binding of HSF1 to the HSP70 promoter and subsequently blocked HSF1-dependent p-TEFb recruitment. Therefore, the p-TEFb-dependent phosphorylation of the C-terminal domain of RNA polymerase II was blocked, arresting transcription at the elongation step. Protein phosphatase 2A inhibition with PP2CA siRNA or okadaic acid did not block HSF1 activity, suggesting that cantharidin inhibits HSF1 in a protein phosphatase 2A-independent manner. We show for the first time that cantharidin inhibits HSF1 transcriptional activity.
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Affiliation(s)
- Joo Ae Kim
- From the Biomedical Genomics Research Center, Korea Research Institute of Bioscience and Biotechnology and
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Min G, Lee SK, Kim HN, Han YM, Lee RH, Jeong DG, Han DC, Kwon BM. Rhodanine-based PRL-3 inhibitors blocked the migration and invasion of metastatic cancer cells. Bioorg Med Chem Lett 2013; 23:3769-74. [PMID: 23726031 DOI: 10.1016/j.bmcl.2013.04.092] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2013] [Revised: 04/21/2013] [Accepted: 04/30/2013] [Indexed: 11/28/2022]
Abstract
PRL-3, phosphatase of regenerating liver-3, plays a role in cancer progression through its involvement in invasion, migration, metastasis, and angiogenesis. We synthesized rhodanine derivatives, CG-707 and BR-1, which inhibited PRL-3 enzymatic activity with IC50 values of 0.8 μM and 1.1 μM, respectively. CG-707 and BR-1 strongly inhibited the migration and invasion of PRL-3 overexpressing colon cancer cells without exhibiting cytotoxicity. The specificity of the inhibitors on PRL-3 phosphatase activity was confirmed by the phosphorylation recovery of known PRL-3 substrates such as ezrin and cytokeratin 8. The compounds selectively inhibited PRL-3 in comparison with other phosphatases, and CG-707 regulated epithelial-to-mesenchymal transition (EMT) marker proteins. The results of the present study reveal that rhodanine is a specific PRL-3 inhibitor and a good lead molecule for obtaining a selective PRL-3 inhibitor.
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Affiliation(s)
- Garam Min
- Laboratory of Chemical Genomics and Biology, Korea Research Institute of Bioscience and Biotechnology, University of Science and Technology, 125 Gwahakro, Yoosunggu, Daejeon 305-600, Republic of Korea
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Kwon BM, Han YM. Abstract 5517: MD-164 strongly inhibited various tumor cells and also metastasis of pancreatic tumor cells via modulation of Arp2/3 complexes. Cancer Res 2013. [DOI: 10.1158/1538-7445.am2013-5517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Laboratory of Chemical Biology and Genomics, Korea Research Institute of Bioscience and Biotechnology, University of Science and Technology in Korea Daejon 305-806, Republic of Korea
The most difficult problem in the treatment of cancer patients is a metastatic recurrence. We focused to find novel anti-metastatic chemicals without cytotoxicity. In preliminary results, more than 800 commercially available pharmaceuticals and pre-clinical drugs were screened to identify inhibitors of tumor cell migration that are intimately tied to the steps of metastasis. The ARP2/3 complex which induces actin-polymerization and Y-branching is an essential element for lamellipodia, invadopodia and filopodia at the early stages of the metastasis in cells. Two classes of small molecule inhibitors of Arp2/3 were reported. However, inhibitors of ARPC1∼5 subunit have not yet been reported. Regulating the ARPC1∼5 subunits for inhibition of actin polymerization by utilizing small molecules will benefit actin based cell migration research. Furthermore, Inhibitors of specific ARPC1∼5 subunit are highly advantageous for developing anti-metastasis drug without toxicity and side effects. As a result of the screening, MD-164 was found to effectively reduce migration and invasion in various cancer cell lines by targeting an ARP2/3 complex subunit2, a component of actin related protein complex 2/3 (ARP 2/3). When AsPc-1 cells stably expressing luciferase were injected into the tail vein of the mice and the mice were treated with MD164, MD164 inhibited lung metastases about 70%.
Citation Format: Byoung-Mog Kwon, Young Min Han. MD-164 strongly inhibited various tumor cells and also metastasis of pancreatic tumor cells via modulation of Arp2/3 complexes. [abstract]. In: Proceedings of the 104th Annual Meeting of the American Association for Cancer Research; 2013 Apr 6-10; Washington, DC. Philadelphia (PA): AACR; Cancer Res 2013;73(8 Suppl):Abstract nr 5517. doi:10.1158/1538-7445.AM2013-5517
Note: This abstract was not presented at the AACR Annual Meeting 2013 because the presenter was unable to attend.
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Affiliation(s)
- Byoung-Mog Kwon
- Korea Research Inst. of Biosci. & Biotech., Daejeon, Republic of Korea
| | - Young Min Han
- Korea Research Inst. of Biosci. & Biotech., Daejeon, Republic of Korea
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Joo J, Lee D, Wu Z, Shin JH, Lee HS, Kwon BM, Huh TL, Kim YW, Lee SJ, Kim TW, Lee T, Liu KH. In vitrometabolism of obovatol and its effect on cytochrome P450 enzyme activities in human liver microsomes. Biopharm Drug Dispos 2013; 34:195-202. [DOI: 10.1002/bdd.1837] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2012] [Revised: 01/27/2013] [Accepted: 02/07/2013] [Indexed: 11/09/2022]
Affiliation(s)
- Jeongmin Joo
- College of Pharmacy and Research Institute of Pharmaceutical Sciences; Kyungpook National University; Daegu; Korea
| | - Doohyun Lee
- College of Pharmacy and Research Institute of Pharmaceutical Sciences; Kyungpook National University; Daegu; Korea
| | - Zhexue Wu
- College of Pharmacy and Research Institute of Pharmaceutical Sciences; Kyungpook National University; Daegu; Korea
| | - Jung-Hoon Shin
- College of Pharmacy and Research Institute of Pharmaceutical Sciences; Kyungpook National University; Daegu; Korea
| | - Hye Suk Lee
- College of Pharmacy and Integrated Research Institute of Pharmaceutical Sciences; The Catholic University of Korea; Bucheon; Korea
| | - Byoung-Mog Kwon
- Division of Biomedical Convergent; Korea Research Institute of Bioscience and Biotechnology; Daejeon; Korea
| | - Tae-Lin Huh
- School of Life Sciences and Biotechnology; Kyungpook National University; Daegu; Korea
| | | | - Su-Jun Lee
- Inje University College of Medicine; Busan; Korea
| | - Tae Wan Kim
- College of Veterinary Medicine; Kyungpook National University; Daegu; Korea
| | - Taeho Lee
- College of Pharmacy and Research Institute of Pharmaceutical Sciences; Kyungpook National University; Daegu; Korea
| | - Kwang-Hyeon Liu
- College of Pharmacy and Research Institute of Pharmaceutical Sciences; Kyungpook National University; Daegu; Korea
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Ismail IA, Kang HS, Lee HJ, Chang H, Yun J, Lee CW, Kim NH, Kim HS, Yook JI, Hong SH, Kwon BM. 2-Hydroxycinnamaldehyde inhibits the epithelial-mesenchymal transition in breast cancer cells. Breast Cancer Res Treat 2013; 137:697-708. [DOI: 10.1007/s10549-012-2388-7] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2012] [Accepted: 12/13/2012] [Indexed: 12/18/2022]
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Kwon JY, Hong SH, Park SD, Ahn SG, Yoon JH, Kwon BM, Kim SA. Erratum to “2′-Benzoyloxycinnamaldehyde inhibits nitric oxide production in lipopolysaccharide-stimulated RAW 264.7 cells via regulation of the AP-1 pathway” [Eur. J. Pharmacol. 696 (2012) 179–186]. Eur J Pharmacol 2013. [DOI: 10.1016/j.ejphar.2012.12.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Masciocchi D, Gelain A, Porta F, Meneghetti F, Pedretti A, Celentano G, Barlocco D, Legnani L, Toma L, Kwon BM, Asai A, Villa S. Synthesis, structure–activity relationships and stereochemical investigations of new tricyclic pyridazinone derivatives as potential STAT3 inhibitors. Med Chem Commun 2013. [DOI: 10.1039/c3md00095h] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Kang HS, Ock J, Lee HJ, Lee YJ, Kwon BM, Hong SH. Early growth response protein 1 upregulation and nuclear translocation by 2'-benzoyloxycinnamaldehyde induces prostate cancer cell death. Cancer Lett 2012. [PMID: 23178451 DOI: 10.1016/j.canlet.2012.11.006] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
2'-Benzoyloxycinnamaldehyde (BCA) induces apoptosis in human cancer cells through ROS generation. BCA upregulates proapoptotic genes such as activating transcription factor 3 (ATF3), NSAID-activated gene 1 protein (NAG-1), and growth arrest and DNA-damage-inducible protein alpha (GADD45A) in prostate cancer cells. These genes are known to be induced by transcription factor early growth response protein 1 (EGR1). BCA induces significant EGR1 upregulation, while EGR1 knockdown decreases the induction of these genes with concurrent alleviation of cell death by BCA. Antioxidant glutathione pretreatment with BCA removes EGR1 expression increase, suggesting that EGR1 upregulation is dependent on oxidative stress generated by BCA. In prostate cancer cells, EGR1 localizes in the cytoplasm; however, BCA remarkably upregulates EGR1 nuclear translocalization, suggesting its possible effect as a transcriptional activator. BCA induces transient upregulation of importin-7 (IPO7) which is critical for EGR1 nuclear translocation, and IPO7 knockdown led to a significant decrease in chemosensitivity to BCA. Taken together, our findings suggest that BCA induces prostate cancer cell death via EGR1 upregulation and nuclear translocalization, followed by activation of proapoptotic target genes.
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Affiliation(s)
- Hye-Sook Kang
- Department of Oral Microbiology, School of Dentistry, Kyungpook National University, Daegu 700-412, South Korea
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Ismail IA, Kang HS, Lee HJ, Kwon BM, Hong SH. 2'-Benzoyloxycinnamaldehyde-mediated DJ-1 upregulation protects MCF-7 cells from mitochondrial damage. Biol Pharm Bull 2012; 35:895-902. [PMID: 22687481 DOI: 10.1248/bpb.35.895] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
2'-Benzoyloxycinnamaldehyde (BCA) is a promising antitumor agent which induces cancer cells apoptosis via reactive oxygen species (ROS) generation. BCA shows more effective antiproliferation in MDA-MB-435 than in MCF-7 breast cancer cells. DJ-1 has been known to protect cells against oxidative stress as an antioxidant because of its cysteine residues sensitive to oxidative stress. In the present study, we evaluated the mechanism of DJ-1 for cell protection from oxidative stress after BCA treatment in MCF-7 cell. BCA upregulates the expression of DJ-1 in MCF-7 cells. However, DJ-1 expression decreased continuously for 24 h after BCA treatment in MDA-MB-435 cells. DJ-1 knockdown sensitized MCF-7 cells to BCA, on the contrary, DJ-1 overexpression induced MDA-MB-435 cells less sensitive to BCA. Confocal microscopic observation showed that only in MCF-7 cells BCA increased the overlapped signal between mitochondria and DJ-1 protein. Mitochondrial membrane potential (MMP) was decreased in MDA-MB-435 cells by BCA, and DJ-1 overexpression inhibited BCA-induced MMP decrease in these cells. On the contrary, DJ-1 knockdown in MCF-7 induced MMP perturbation by BCA. These findings suggest that DJ-1 upregulation protects MCF-7 cells from BCA via inhibiting mitochondrial damage.
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Affiliation(s)
- Ismail Ahmed Ismail
- Department of Oral Microbiology, School of Dentistry, Kyungpook National University, Daegu, South Korea
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Abstract
A new nortriterpene, rhombenone (1) was isolated from the leaves ofHedera rhombea Bean (Araliaceae). The structure of this compound was established as 27-demethyl-20(S)-dammar-23-ene-6alpha,20-diol-3,25-dione on the basis of spectral analysis including HMQC and HMBC techniques. Rhombenone (1) was the first 27-demethyl nortriterpene of dammarance type isolated from natural sources.
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Affiliation(s)
- K S Kim
- College of Pharmacy, Ewha Womans University, 120-750, Seoul, Korea
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Kim WS, Kim DO, Yoon SJ, Kim MJ, Yoon SR, Park YJ, Jung H, Kim TD, Kwon BM, Choi I. Cryptotanshinone and tanshinone IIA enhance IL-15-induced natural killer cell differentiation. Biochem Biophys Res Commun 2012; 425:340-7. [PMID: 22842576 DOI: 10.1016/j.bbrc.2012.07.093] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2012] [Accepted: 07/18/2012] [Indexed: 01/06/2023]
Abstract
Natural killer (NK) cells are a subset of lymphocytes crucial for innate and adaptive immune responses. Here we show a stimulatory effect of cryptotanshinone (CTS) and tanshinone IIA (TS), isolated from Salvia miltiorrhiza Bunge, on the differentiation of NK cells. In the presence of IL-15, tanshinones increased NK cell maturation, NK cell differentiation and the expression of several transcription factors, including Id2, GATA3, T-bet, and Ets-1. Additionally, tanshinones increased p38 MAPK phosphorylation during NK cell differentiation. Furthermore, the p38 inhibitor SB203580 blocked the developmental effects of the tanshinones and suppressed Id2, T-bet, and Ets-1 expression during NK cell differentiation. These results suggest that tanshinones significantly increased IL-15-induced NK cell differentiation via enhancing the p38 phosphorylation and the expression of transcription factors.
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Affiliation(s)
- Won Sam Kim
- Immunotherapy Research Center, Korea Research Institute of Bioscience and Biotechnology, 125 Gwahak-ro, Yoosunggu, Daejeon 305-600, Republic of Korea
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Nam Y, Choi M, Hwang H, Lee MG, Kwon BM, Lee WH, Suk K. Natural Flavone Jaceosidin is a Neuroinflammation Inhibitor. Phytother Res 2012; 27:404-11. [DOI: 10.1002/ptr.4737] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2012] [Revised: 04/23/2012] [Accepted: 04/23/2012] [Indexed: 01/06/2023]
Affiliation(s)
- Youngpyo Nam
- Department of Pharmacology, Brain Science and Engineering Institute, CMRI; Kyungpook National University School of Medicine; Daegu Korea
| | - Mijung Choi
- Department of Pharmacology, Brain Science and Engineering Institute, CMRI; Kyungpook National University School of Medicine; Daegu Korea
| | - Heehong Hwang
- Department of Pharmacology, Brain Science and Engineering Institute, CMRI; Kyungpook National University School of Medicine; Daegu Korea
| | - Maan-Gee Lee
- Department of Pharmacology, Brain Science and Engineering Institute, CMRI; Kyungpook National University School of Medicine; Daegu Korea
| | - Byoung-Mog Kwon
- Laboratory of Chemical Biology and Genomics, Korea Research Institute of Bioscience and Biotechnology; University of Science and Technology; Daejeon Korea
| | - Won-Ha Lee
- Department of Genetic Engineering, School of Life Sciences and Biotechnology; Kyungpook National University; Daegu Korea
| | - Kyoungho Suk
- Department of Pharmacology, Brain Science and Engineering Institute, CMRI; Kyungpook National University School of Medicine; Daegu Korea
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Choi DY, Lee JW, Peng J, Lee YJ, Han JY, Lee YH, Choi IS, Han SB, Jung JK, Lee WS, Lee SH, Kwon BM, Oh KW, Hong JT. Obovatol improves cognitive functions in animal models for Alzheimer's disease. J Neurochem 2012; 120:1048-59. [PMID: 22212065 DOI: 10.1111/j.1471-4159.2011.07642.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Etiology of Alzheimer's disease (AD) is obscure, but neuroinflammation and accumulation of β-amyloid (Aβ) are implicated in pathogenesis of AD. We have shown anti-inflammatory and neurotrophic properties of obovatol, a biphenolic compound isolated from Magnolia obovata. In this study, we examined the effect of obovatol on cognitive deficits in two separate AD models: (i) mice that received intracerebroventricular (i.c.v.) infusion of Aβ(1-42) (2.0 μg/mouse) and (ii) Tg2576 mice-expressing mutant human amyloid precursor protein (K670N, M671L). Injection of Aβ(1-42) into lateral ventricle caused memory impairments in the Morris water maze and passive avoidance tasks, being associated with neuroinflammation. Aβ(1-42) -induced abnormality was significantly attenuated by administration of obovatol. When we analyzed with Tg2576 mice, long-term treatment of obovatol (1 mg/kg/day for 3 months) significantly improved cognitive function. In parallel with the improvement, treatment suppressed astroglial activation, BACE1 expression and NF-κB activity in the transgenic mice. Furthermore, obovatol potently inhibited fibrillation of Aβin vitro in a dose-dependent manner, as determined by Thioflavin T fluorescence and electron microscopic analysis. In conclusion, our data demonstrated that obovatol prevented memory impairments in experimental AD models, which could be attributable to amelioration of neuroinflammation and amyloidogenesis by inhibition of NF-κB signaling pathway and anti-fibrillogenic activity of obovatol.
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Affiliation(s)
- Dong-Young Choi
- College of Pharmacy and MRC, Chungbuk National University, Heungduk-gu, Cheongju, Chungbuk, South Korea
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Lee SK, Han YM, Yun J, Lee CW, Shin DS, Ha YR, Kim J, Koh JS, Hong SH, Han DC, Kwon BM. Phosphatase of regenerating liver-3 promotes migration and invasion by upregulating matrix metalloproteinases-7 in human colorectal cancer cells. Int J Cancer 2012; 131:E190-203. [PMID: 22131018 DOI: 10.1002/ijc.27381] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2011] [Accepted: 11/22/2011] [Indexed: 11/09/2022]
Abstract
Phosphatase of regenerating liver (PRL)-3, a member of a subgroup of protein tyrosine phosphatases that can stimulate the degradation of the extracellular matrix, is over-expressed in metastatic colorectal cancer (CRC) relative to primary tumors. To determine whether PRL-3-induced enhancement of migration and invasion is dependent on the expression of matrix metalloproteinases (MMPs), PRL-3 was expressed in DLD-1 human CRC cells. The motility, migration and invasion characteristics of the cells were examined, and metastasis to the lung was confirmed in a nude mouse using PRL-3-overexpressing DLD-1 cells [DLD-1 (PRL-3)]. Migration and invasion of the cells were inhibited by phosphatase and farnesyltransferase inhibitors. Expression of MMPs was enhanced 3- to 10-fold in comparison to control cells, and migration and invasion were partially inhibited by small interfering RNA (siRNA) knockdown of MMP-2, -13 or -14. Importantly, siRNA knockdown of MMP-7 completely inhibited the migration and invasion of DLD-1 (PRL-3) cells, whereas overexpression of MMP-7 increased migration. The expression of MMP-7 was also downregulated by phosphatase and farnesyltransferase inhibitors. It was found that PRL-3 induced MMP-7 through oncogenic pathways including PI3K/AKT and ERK and that there is a relationship between the expression of PRL-3 and MMP-7 in human tumor cell lines. The expression of MMP-13 and -14 was very sensitive to the inhibition of farnesyltransferase; however, the migration and invasion of DLD-1 (PRL-3) cells did not strongly depend on the expression of MMP-13 or -14. These results suggest that the migration and invasion of PRL-3-expressing CRC cells depends primarily on the expression of MMP-7.
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Affiliation(s)
- Su-Kyung Lee
- Laboratory of Chemical Biology and Genomics, Korea Research Institute of Bioscience and Biotechnology, University of Science and Technology, Yuseonggu, Daejon, Republic of Korea
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