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Kim S, Lee M, Kim NY, Kwon YS, Nam GS, Lee K, Kwon KM, Kim DK, Hwang IH. Oxidative tryptamine dimers from Corynebacterium durum directly target survivin to induce AIF-mediated apoptosis in cancer cells. Biomed Pharmacother 2024; 173:116335. [PMID: 38422661 DOI: 10.1016/j.biopha.2024.116335] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Revised: 02/18/2024] [Accepted: 02/22/2024] [Indexed: 03/02/2024] Open
Abstract
Accumulating evidence indicates that microbial communities in the human body crucially affect health through the production of chemical messengers. However, the relationship between human microbiota and cancer has been underexplored. As a result of a biochemical investigation of the commensal oral microbe, Corynebacterium durum, we identified the non-enzymatic transformation of tryptamine into an anticancer compound, durumamide A (1). The structure of 1 was determined using LC-MS and NMR data analysis as bis(indolyl)glyoxylamide, which was confirmed using one-pot synthesis and X-ray crystallographic analysis, suggesting that 1 is an oxidative dimer of tryptamine. Compound 1 displayed cytotoxic activity against various cancer cell lines with IC50 values ranging from 25 to 35 μM. A drug affinity responsive target stability assay revealed that survivin is the direct target protein responsible for the anticancer effect of 1, which subsequently induces apoptosis-inducing factor (AIF)-mediated apoptosis. Inspired by the chemical structure and bioactivity of 1, a new derivative, durumamide B (2), was synthesized using another indole-based neurotransmitter, serotonin. The anticancer properties of 2 were similar to those of 1; however, it was less active. These findings reinforce the notion of human microbiota-host interplay by showing that 1 is naturally produced from the human microbial metabolite, tryptamine, which protects the host against cancer.
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Affiliation(s)
- Soyoung Kim
- Department of Pharmacology, School of Medicine, Dongguk University, Gyeongju, Gyeongsangbuk-do 38066, Republic of Korea
| | - Munseon Lee
- Department of Pharmacy, Woosuk University, Wanju, Jeonbuk 55338, Republic of Korea
| | - Nam-Yi Kim
- Department of Pharmacology, School of Medicine, Dongguk University, Gyeongju, Gyeongsangbuk-do 38066, Republic of Korea
| | - Yun-Suk Kwon
- Research Institute of Climate Change and Agriculture, National Institute of Horticultural and Herbal Science, Jeju, Jeju-do 63240, Republic of Korea
| | - Gi Suk Nam
- Department of Biomedical Laboratory Science, Honam University, 120, Honamdae-gil, Gwangsan-gu, Gwangju 62399, Republic of Korea
| | - Kyounghoon Lee
- Department of Chemical Education and Research Institute of Natural Sciences, Gyeongsang National University, Gyeongsangnam-do 52828, Republic of Korea
| | - Kang Mu Kwon
- Department of Pharmacy, Woosuk University, Wanju, Jeonbuk 55338, Republic of Korea
| | - Dae Keun Kim
- Department of Pharmacy, Woosuk University, Wanju, Jeonbuk 55338, Republic of Korea; Research Institute of Pharmaceutical Sciences, Woosuk University, Wanju 55338, Republic of Korea
| | - In Hyun Hwang
- Department of Pharmacy, Woosuk University, Wanju, Jeonbuk 55338, Republic of Korea; Research Institute of Pharmaceutical Sciences, Woosuk University, Wanju 55338, Republic of Korea.
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Kwon YS, Lee MG, Kim NY, Nam GS, Nam KS, Jang H, Kim S. Overcoming radioresistance of breast cancer cells with MAP4K4 inhibitors. Sci Rep 2024; 14:7410. [PMID: 38548749 PMCID: PMC10978830 DOI: 10.1038/s41598-024-57000-6] [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] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Accepted: 03/13/2024] [Indexed: 04/01/2024] Open
Abstract
Mitogen-activated protein kinase kinase kinase kinase 4 (MAP4K4) has recently emerged as a promising therapeutic target in cancer. In this study, we explored the biological function of MAP4K4 in radioresistant breast cancer cells using two MAP4K4 inhibitors, namely PF06260933 and GNE-495. Radioresistant SR and MR cells were established by exposing SK-BR-3 and MCF-7 breast cancer cells to 48-70 Gy of radiation delivered at 4-5 Gy twice a week over 10 months. Surprisingly, although radioresistant cells were derived from two different subtypes of breast cancer cell lines, MAP4K4 was significantly elevated regardless of subtype. Inhibition of MAP4K4 with PF06260933 or GNE-495 selectively targeted radioresistant cells and improved the response to irradiation. Furthermore, MAP4K4 inhibitors induced apoptosis through the accumulation of DNA damage by inhibiting DNA repair systems in radioresistant cells. Notably, Inhibition of MAP4K4 suppressed the expressions of ACSL4, suggesting that MAP4K4 functioned as an upstream effector of ACSL4. This study is the first to report that MAP4K4 plays a crucial role in mediating the radioresistance of breast cancer by acting upstream of ACSL4 to enhance DNA damage response and inhibit apoptosis. We hope that our findings provide a basis for the development of new drugs targeting MAP4K4 to overcome radioresistance.
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Affiliation(s)
- Yun-Suk Kwon
- Research Institute of Climate Change and Agriculture, National Institute of Horticultural and Herbal Science, Jeju, Jeju-do, 63240, Republic of Korea
| | - Min-Gu Lee
- Department of Pharmacology, School of Medicine, Dongguk University, Gyeongju, Gyeongsangbuk-do, 38066, Republic of Korea
| | - Nam-Yi Kim
- Department of Pharmacology, School of Medicine, Dongguk University, Gyeongju, Gyeongsangbuk-do, 38066, Republic of Korea
| | - Gi Suk Nam
- Department of Biomedical Laboratory Science, Honam University, Gwangsan-gu, Gwangju, 62399, Republic of Korea
| | - Kyung-Soo Nam
- Department of Pharmacology, School of Medicine, Dongguk University, Gyeongju, Gyeongsangbuk-do, 38066, Republic of Korea
| | - Hyunsoo Jang
- Department of Radiation Oncology, Pohang St. Mary's Hospital, Pohang, Gyeongsangbuk-do, 37661, Republic of Korea
| | - Soyoung Kim
- Department of Pharmacology, School of Medicine, Dongguk University, Gyeongju, Gyeongsangbuk-do, 38066, Republic of Korea.
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Nam GS, Kim S, Kwon YS, Kim MK, Nam KS. A new function for MAP4K4 inhibitors during platelet aggregation and platelet-mediated clot retraction. Biochem Pharmacol 2021; 188:114519. [PMID: 33737052 DOI: 10.1016/j.bcp.2021.114519] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 10/26/2020] [Revised: 02/22/2021] [Accepted: 03/10/2021] [Indexed: 11/19/2022]
Abstract
Mitogen-activated protein kinase kinase kinase kinase 4 (MAP4K4) is implicated in type 2 diabetes mellitus, insulin tolerance, inflammation, cancer, and atherosclerosis. We found that GNE 495 and PF 06260933 (both potent and selective MAP4K4 inhibitors) regulated human platelet activation. Immunoblotting revealed human platelets express MAP4K4, and that GNE 495 and PF 06260933 inhibited collagen-, ADP-, and thrombin-induced platelet aggregation and eventually suppressed granule release, TXA2 generation, integrin αIIbβ3 activation, and clot retraction. In addition, both inhibitors elevated intracellular levels of cAMP, and coincubation with GNE 495 and aspirin or dipyridamole (a phosphodiesterase inhibitor) synergistically inhibited collagen-induced platelet aggregation and TXA2 generation. Moreover, both inhibitors phosphorylated VASP (ser157), IP3 receptor, and PKA and attenuated MAPK and PI3K/Akt/GSK3β signaling pathways. This study is the first to demonstrate that MAP4K4 inhibitors reduce thrombus formation by inhibiting platelet activation. These findings also suggest MAP4K4 be considered an emerging target protein for the treatment of thrombosis.
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Affiliation(s)
- Gi Suk Nam
- Department of Pharmacology and Intractable Disease Research Center, School of Medicine, Dongguk University, Gyeongju, Gyeongsangbuk-do, 38066, Republic of Korea
| | - Soyoung Kim
- Department of Pharmacology and Intractable Disease Research Center, School of Medicine, Dongguk University, Gyeongju, Gyeongsangbuk-do, 38066, Republic of Korea
| | - Yun-Suk Kwon
- Department of Pharmacology and Intractable Disease Research Center, School of Medicine, Dongguk University, Gyeongju, Gyeongsangbuk-do, 38066, Republic of Korea
| | - Min-Kyung Kim
- Department of Pathology, School of Medicine, Dongguk University, Gyeongju, Gyeongsangbuk-do, 38066, Republic of Korea.
| | - Kyung-Soo Nam
- Department of Pharmacology and Intractable Disease Research Center, School of Medicine, Dongguk University, Gyeongju, Gyeongsangbuk-do, 38066, Republic of Korea.
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Nam GS, Park HJ, Nam KS. The antithrombotic effect of caffeic acid is associated with a cAMP-dependent pathway and clot retraction in human platelets. Thromb Res 2020; 195:87-94. [DOI: 10.1016/j.thromres.2020.07.024] [Citation(s) in RCA: 7] [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: 05/04/2020] [Revised: 06/25/2020] [Accepted: 07/08/2020] [Indexed: 10/23/2022]
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Nam GS, Lee KS, Nam KS. Anti‑platelet activity of mineral‑balanced deep sea water is mediated via the regulation of Akt and ERK pathway crosstalk. Int J Mol Med 2020; 45:658-668. [PMID: 31894254 DOI: 10.3892/ijmm.2019.4424] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 07/09/2019] [Accepted: 11/14/2019] [Indexed: 11/06/2022] Open
Abstract
Mineral‑balanced deep sea water (MBDSW), an unlimited natural sea source, has been demonstrated to minimize the risk of developing cardiovascular diseases, such as obesity, hypertension, inflammation and hyperlipidemia. This study investigated the effects of MBDSW [magnesium (Mg):calcium (Ca) ratio, 3:1] on platelet activation. MBDSW significantly inhibited the collagen‑ and thrombin‑induced platelet aggregation of human platelets. In collagen‑induced platelets, MBDSW inhibited intracellular calcium mobilization, granule secretion [serotonin, adenosine triphosphate (ATP) and P‑selectin expression] and thromboxane A2 (TXA2) production. Moreover, MBDSW markedly inhibited Akt and extracellular signal‑regulated kinase (ERK) phosphorylation, but not that of c‑Jun N‑terminal kinase (JNK) and p38. Moreover, MBDSW phosphorylated inositol 1,4,5‑triphosphate receptor (IP3R) and vasodilator‑stimulated phosphoprotein (VASP), and it increased the cyclic adenosine monophosphate (cAMP) level in collagen‑induced human platelets. Dipyridamole, a phosphodiesterase (PDE) inhibitor, significantly increased the cAMP level and regulated the Akt, ERK and VASP (Ser157) levels in a manner similar to that of MBDSW. In addition, LY294002, an Akt inhibitor, inhibited the phosphorylation of ERK, and U0126, an ERK inhibitor, inhibited the phosphorylation of Akt. Taken together, the results of the present investigation suggest that the inhibitory effects of MBDSW on platelet aggregation may be associated with the cross‑inhibition of Akt and ERK phosphorylation. These results strongly indicate that MBDSW may have preventive or therapeutic potential for platelet aggregation‑mediated diseases, such as thrombosis, atherosclerosis and myocardial infarction.
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Affiliation(s)
- Gi Suk Nam
- Department of Pharmacology and Intractable Disease Research Center, School of Medicine, Dongguk University, Gyeongju, Gyeongsangbuk‑do 38066, Republic of Korea
| | - Kyu-Shik Lee
- Department of Pharmacology and Intractable Disease Research Center, School of Medicine, Dongguk University, Gyeongju, Gyeongsangbuk‑do 38066, Republic of Korea
| | - Kyung-Soo Nam
- Department of Pharmacology and Intractable Disease Research Center, School of Medicine, Dongguk University, Gyeongju, Gyeongsangbuk‑do 38066, Republic of Korea
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Lee KS, Nam GS, Baek J, Kim S, Nam KS. Inhibition of TPA‑induced metastatic potential by morin hydrate in MCF‑7 human breast cancer cells via the Akt/GSK‑3β/c‑Fos signaling pathway. Int J Oncol 2020; 56:630-640. [PMID: 31939617 DOI: 10.3892/ijo.2020.4954] [Citation(s) in RCA: 5] [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] [Received: 06/22/2019] [Accepted: 11/08/2019] [Indexed: 11/06/2022] Open
Abstract
Plant flavonoid 2',3,4',5,7‑pentahydroxyflavone (morin hydrate), isolated from the family Moraceae (Morus alba L.), is known to have anti‑inflammatory and anticancer effects. However, its pharmaceutical effects on metastasis have not been fully elucidated to date. Therefore, the current study investigated the effects of morin hydrate on cancer metastasis in MCF‑7 human breast cancer cells. The results showed that morin hydrate suppressed 12‑O‑tetradecanoylphorbol‑13‑acetate (TPA)‑induced cell migration and invasion via the inhibition of matrix metalloproteinase (MMP)‑9 activity. Furthermore, gene expression level of MMP‑9, MMP‑7, urokinase plasminogen activator (uPA), uPA receptor (uPAR) and fibronectin were significantly decreased by morin hydrate treatment. Morin hydrate inhibited the phosphorylation of Akt and glycogen synthase kinase (GSK)‑3β, and downregulated the expression of an activator protein‑1 subunit c‑Fos. In addition, the GSK‑3β phosphorylation and c‑Fos expression were suppressed by PI3K/Akt pathway inhibitors, LY294002 and wortmannin. Taken together, these results demonstrated that morin hydrate reduced the metastatic potential in TPA‑treated MCF‑7 human breast cancer cells via the inhibition of MMPs, uPA and uPAR, and the underlying Akt/GSK‑3β/c‑Fos pathway. Therefore, the present investigation suggested that morin hydrate may be a natural substance with a preventive potential for metastasis in breast cancer cells.
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Affiliation(s)
- Kyu-Shik Lee
- Department of Pharmacology, School of Medicine and Intractable Disease Research Center, Dongguk University, Gyeongju, Gyeongsangbuk 38066, Republic of Korea
| | - Gi Suk Nam
- Department of Pharmacology, School of Medicine and Intractable Disease Research Center, Dongguk University, Gyeongju, Gyeongsangbuk 38066, Republic of Korea
| | - Junyoung Baek
- Department of Pharmacology, School of Medicine and Intractable Disease Research Center, Dongguk University, Gyeongju, Gyeongsangbuk 38066, Republic of Korea
| | - Soyoung Kim
- Department of Pharmacology, School of Medicine and Intractable Disease Research Center, Dongguk University, Gyeongju, Gyeongsangbuk 38066, Republic of Korea
| | - Kyung-Soo Nam
- Department of Pharmacology, School of Medicine and Intractable Disease Research Center, Dongguk University, Gyeongju, Gyeongsangbuk 38066, Republic of Korea
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Kim JH, Nam GS, Kim SH, Ryu DS, Lee DS. Orostachys japonicus exerts antipancreatic cancer activity through induction of apoptosis and cell cycle arrest in PANC-1 cells. Food Sci Nutr 2019; 7:3549-3559. [PMID: 31763005 PMCID: PMC6848830 DOI: 10.1002/fsn3.1207] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [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: 03/08/2019] [Revised: 07/30/2019] [Accepted: 08/12/2019] [Indexed: 12/11/2022] Open
Abstract
Targeted therapy at the molecular level is important for pancreatic cancer treatment. This study looked over the anticancer activity of Orostachys japonicus in a human pancreatic cancer cell line, PANC-1. An ethyl acetate fraction containing quercetin, kaempferol, and flavonol glycosides from O. japonicus (OJE) exhibited significant anticancer activity against the PANC-1. OJE activated caspase-3, caspase-8, and caspase-9, leading to the induction of both intrinsic and extrinsic apoptosis pathways. It also inhibited cyclin D1, cyclin B1, and cyclin-dependent kinase 4, representing cell cycle arrest at both G1/S and G2/M phases. In addition, OJE phosphorylated MAPKs such as p38, JNK, and ERK, which are important upstream signaling factors in apoptosis and arrest of cell cycle inducing system. In conclusion, OJE effectively exerted antipancreatic cancer activity via induction of apoptosis directed by both intrinsic and extrinsic pathways and arrest of cell cycle regulated at both G1/S and G2/M stages, which is activated by MAPKs, p38, JNK, and ERK.
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Affiliation(s)
- Ji Hyun Kim
- Department of Smart Foods and DrugsGraduate School of Inje UniversityGimhaeKorea
| | - Gi Suk Nam
- Department of Smart Foods and DrugsGraduate School of Inje UniversityGimhaeKorea
| | - Sung Hyun Kim
- Department of Smart Foods and DrugsGraduate School of Inje UniversityGimhaeKorea
| | - Deok Seon Ryu
- Department of Biomedical Laboratory ScienceSoonchunhyang UniversityAsanKorea
| | - Dong Seok Lee
- Department of Smart Foods and DrugsGraduate School of Inje UniversityGimhaeKorea
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Nam GS, Lee KS, Nam KS. Morin hydrate inhibits platelet activation and clot retraction by regulating integrin α IIbβ 3, TXA 2, and cAMP levels. Eur J Pharmacol 2019; 865:172734. [PMID: 31614139 DOI: 10.1016/j.ejphar.2019.172734] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Revised: 10/10/2019] [Accepted: 10/11/2019] [Indexed: 01/27/2023]
Abstract
Morin hydrate is an active constituent of Morus alba L, Prunus dulcis, and Cudrania tricuspidata and has been reported to inhibit platelet activation in vivo and in vitro, but no reports have been issued on its regulation of αIIbβ3, a platelet-specific integrin and thromboxane A2 (TXA2), positive feedback molecule. In this study, we investigated the anti-platelet activity of morin hydrate in collagen- and thrombin-induced human platelets and attempted to identify the mechanism responsible for integrin αIIbβ3 activation and TXA2 generation. Our results demonstrated that morin hydrate (25-100 μM) inhibited collagen- and thrombin-induced platelet aggregation, granule secretion (P-selectin expression, ATP, and serotonin release), calcium mobilization, TXA2 production, integrin αIIbβ3 activation, and clot retraction. Additionally, morin hydrate attenuated the phosphorylations of phospholipase Cγ2 (PLCγ2), cytosolic phospholipase A2 (cPLA2), phosphoinositide 3-kinase (PI3K), Akt, c-Jun N-terminal kinase (JNK), and extracellular signal-regulated kinase (ERK), and enhanced the phosphorylations of inositol trisphosphate receptor (IP3 receptor) and cyclic adenosine monophosphate (cAMP) generation. However, it had no effect on the coagulation pathway. Taken together, these observations indicate morin hydrate inhibits platelet-mediated thrombosis by down-regulating TXA2 production and integrin αIIbβ3 activation, and by upregulating cAMP generation, and thus, inhibits clot retraction. These results suggest morin hydrate may have therapeutic potential as a treatment for platelet-activation-related diseases.
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Affiliation(s)
- Gi Suk Nam
- Department of Pharmacology and Intractable Disease Research Center, School of Medicine, Dongguk University, Gyeongju, Gyeongsangbuk-do, 38066, Republic of Korea
| | - Kyu-Shik Lee
- Department of Pharmacology and Intractable Disease Research Center, School of Medicine, Dongguk University, Gyeongju, Gyeongsangbuk-do, 38066, Republic of Korea
| | - Kyung-Soo Nam
- Department of Pharmacology and Intractable Disease Research Center, School of Medicine, Dongguk University, Gyeongju, Gyeongsangbuk-do, 38066, Republic of Korea.
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Kwon HW, Shin JH, Lim DH, Ok WJ, Nam GS, Kim MJ, Kwon HK, Noh JH, Lee JY, Kim HH, Kim JL, Park HJ. Antiplatelet and antithrombotic effects of cordycepin-enriched WIB-801CE from Cordyceps militaris ex vivo, in vivo, and in vitro. BMC Complement Altern Med 2016; 16:508. [PMID: 27927214 PMCID: PMC5142411 DOI: 10.1186/s12906-016-1463-8] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/01/2016] [Accepted: 11/16/2016] [Indexed: 11/23/2022]
Abstract
BACKGROUND A species of the fungal genus Cordyceps has been used as a complementary and alternative medicine of traditional Chinese medicine, and its major component cordycepin and cordycepin-enriched WIB-801CE are known to have antiplatelet effects in vitro. However, it is unknown whether they have also endogenous antiplatelet and antithrombotic effects. In this study, to resolve these doubts, we prepared cordycepin-enriched WIB-801CE, an ethanol extract from Cordyceps militaris-hypha, then evaluated its ex vivo, in vivo, and in vitro antiplatelet and antithrombotic effects. METHODS Ex vivo effects of WIB-801CE on collagen- and ADP-induced platelet aggregation, serotonin release, thromboxane A2 (TXA2) production and its associated activities of enzymes [cyclooxygenase-1 (COX-1), TXA2 synthase (TXAS)], arachidonic acid (AA) release and its associated phosphorylation of phospholipase Cβ3, phospholipase Cγ2 or cytosolic phospholipase A2, mitogen-activated protein kinase (MAPK) [p38 MAPK, extracellular signal-regulated kinase (ERK)], and blood coagulation time in rats were investigated. In vivo effects of WIB-801CE on collagen plus epinephrine-induced acute pulmonary thromboembolism, and tail bleeding time in mice were also inquired. In vitro effects of WIB-801CE on cytotoxicity, and fibrin clot retraction in human platelets, and nitric oxide (NO) production in RAW264.7 cells or free radical scavenging activity were studied. RESULTS Cordycepin-enriched WIB-801CE inhibited ex vivo platelet aggregation, TXA2 production, AA release, TXAS activity, serotonin release, and p38 MAPK and ERK2 phosphorylation in collagen- and ADP-activated rat platelets without affecting blood coagulation. Furthermore, WIB-801CE manifested in vivo inhibitory effect on collagen plus epinephrine-induced pulmonary thromboembolism mice model. WIB-801CE inhibited in vitro NO production and fibrin clot retraction, but elevated free radical scavenging activity without affecting cytotoxicity against human platelets. CONCLUSION WIB-801CE inhibited collagen- and ADP-induced platelet activation and its associated thrombus formation ex vivo and in vivo. These were resulted from down-regulation of TXA2 production and its related AA release and TXAS activity, and p38MAPK and ERK2 activation. These results suggest that WIB-801CE has therapeutic potential to treat platelet activation-mediated thrombotic diseases in vivo.
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Affiliation(s)
- Hyuk-Woo Kwon
- Department of Biomedical Laboratory Science, College of Biomedical Science and Engineering, Inje University, 197, Inje-ro, Gyungnam, Gimhae, 50834, Korea
| | - Jung-Hae Shin
- Department of Biomedical Laboratory Science, College of Biomedical Science and Engineering, Inje University, 197, Inje-ro, Gyungnam, Gimhae, 50834, Korea
| | - Deok Hwi Lim
- Department of Biomedical Laboratory Science, College of Biomedical Science and Engineering, Inje University, 197, Inje-ro, Gyungnam, Gimhae, 50834, Korea
| | - Woo Jeong Ok
- Department of Biomedical Laboratory Science, College of Biomedical Science and Engineering, Inje University, 197, Inje-ro, Gyungnam, Gimhae, 50834, Korea
| | - Gi Suk Nam
- Department of Biomedical Laboratory Science, College of Biomedical Science and Engineering, Inje University, 197, Inje-ro, Gyungnam, Gimhae, 50834, Korea
| | - Min Ji Kim
- Department of Biomedical Laboratory Science, College of Biomedical Science and Engineering, Inje University, 197, Inje-ro, Gyungnam, Gimhae, 50834, Korea
| | - Ho-Kyun Kwon
- Central Research Center, Whanin Pharm. Co., Ltd., 107, Gwanggyo-ro, Suwon, Gyeonggi-do, 16229, Korea
| | - Jun-Hee Noh
- Central Research Center, Whanin Pharm. Co., Ltd., 107, Gwanggyo-ro, Suwon, Gyeonggi-do, 16229, Korea
| | - Je-Young Lee
- Central Research Center, Whanin Pharm. Co., Ltd., 107, Gwanggyo-ro, Suwon, Gyeonggi-do, 16229, Korea
| | - Hyun-Hong Kim
- Department of Biomedical Laboratory Science, College of Biomedical Science and Engineering, Inje University, 197, Inje-ro, Gyungnam, Gimhae, 50834, Korea
| | - Jong-Lae Kim
- Central Research Center, Whanin Pharm. Co., Ltd., 107, Gwanggyo-ro, Suwon, Gyeonggi-do, 16229, Korea.
| | - Hwa-Jin Park
- Department of Biomedical Laboratory Science, College of Biomedical Science and Engineering, Inje University, 197, Inje-ro, Gyungnam, Gimhae, 50834, Korea.
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Lee DH, Kwon HW, Kim HH, Lim DH, Nam GS, Shin JH, Kim YY, Kim JL, Lee JJ, Kwon HK, Park HJ. Cordycepin-enriched WIB801C from Cordyceps militaris inhibits ADP-induced [Ca(2+)] i mobilization and fibrinogen binding via phosphorylation of IP 3R and VASP. Arch Pharm Res 2014; 38:81-97. [PMID: 25001901 DOI: 10.1007/s12272-014-0436-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2013] [Accepted: 06/24/2014] [Indexed: 11/30/2022]
Abstract
In this study, we investigated the effect of cordycepin-enriched (CE)-WIB801C from Cordyceps militaris on ADP (20 µM)-stimulated platelet aggregation. CE-WIB801C dose-dependently inhibited ADP-induced platelet aggregation, and its IC50 value was 18.5 μg/mL. CE-WIB801C decreased TXA2 production, but did not inhibit the activities of COX-1 and thromboxane synthase (TXAS) in ADP-activated platelets, which suggests that the inhibition of TXA2 production by CE-WIB801C is not resulted from the direct inhibition of COX-1 and TXAS. CE-WIB801C inhibited ATP release and [Ca(2+)]i mobilization, and increased cAMP level and IP3RI (Ser(1756)) phosphorylation in ADP-activated platelets. cAMP-dependent protein kinase (A-kinase) inhibitor Rp-8-Br-cAMPS increased CE-WIB801C-inhibited [Ca(2+)]i mobilization, and strongly inhibited CE-WIB801C-increased IP3RI (Ser(1756)) phosphorylation. CE-WIB801C elevated the phosphorylation of VASP (Ser(157)), an A-kinase substrate, but inhibited fibrinogen binding to αIIb/β3. These results suggest that CE-WIB801C-elevated cAMP involved in IP3RI (Ser(1756)) phosphorylation to inhibit [Ca(2+)]i mobilization and, VASP (Ser(157)) phosphorylation to inhibit αIIb/β3 activation. Therefore, in this study, we demonstrate that CE-WIB801C may have a preventive or therapeutic potential for platelet aggregation-mediated diseases, such as thrombosis, myocardial infarction, atherosclerosis, and ischemic cerebrovascular disease.
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Affiliation(s)
- Dong-Ha Lee
- Department of Biomedical Laboratory Science, College of Biomedical Science and Engineering, Inje University, 197, Inje-ro, Gimhae, Gyungnam, 621-749, Republic of Korea
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