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Kang Y, Lin J, Wang L, Shen X, Li J, Wu A, Yue L, Wei L, Ye Y, Yang J, Wu J. Hirsutine, a novel megakaryopoiesis inducer, promotes thrombopoiesis via MEK/ERK/FOG1/TAL1 signaling. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2022; 102:154150. [PMID: 35569185 DOI: 10.1016/j.phymed.2022.154150] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Revised: 04/11/2022] [Accepted: 05/02/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND Thrombocytopenia (TP) remains a challenge in clinical hematology. TP may have serious consequences, such as recurrent skin and mucosal bleeding and increased risk of intracranial and internal organ hemorrhage. However, effective and safe therapeutic drugs for the long-term management of TP are still lacking. PURPOSE This study aimed to identify more effective active compounds for TP therapy. METHODS Liquid chromatography-mass spectrometry-nuclear magnetic resonance analysis was used to confirm the medicinal species and chemical structure of Hirsutine (HS). The proliferation of HS was examined by Cell Counting Kit (CCK-8) assay on cells lines. The effect of HS on megakaryocyte differentiation was analyzed by evaluating the expression of CD41, CD42b, and DNA ploidy via flow cytometry (FCM). The morphology of megakaryocytes and intermediate cells was observed using an optical microscope. K562 cells were then stained with Giemsa and benzidine. qRT-PCR was used to examine the mRNA expression of GATA-1, GATA-2, FOG-1, TAL-1, RUNX-1, NF-E2, and KLF-1 in K562 cells. Protein levels of the transcription factors were analyzed by western blotting. An MEK inhibitor was used to verify the relationship between the MEK/ERK signaling pathway and CD41/CD42b (FCM), FOG-1, and TAL-1. The Kunming thrombocytopenia mouse model was established by X-ray irradiation (4 Gy) and used to test HS activity and related hematopoietic organ index in vivo. Finally, computer simulations of molecular docking were used to predict the binding energies between HS-MEK and HS-ERK. RESULTS We preliminarily identified HS by screening a plant-sourced compound library for natural compounds with megakaryocytic differentiation and maturation (MKD/MKM)-promoting activity. We found that HS not only enhanced MKD/MKM of K562 and Meg01 cells, but also suppressed the decline of peripheral platelet levels in X-ray-induced myelosuppressive mice. In addition, HS promoted MKD via activation of MEK-ERK-FOG1/TAL1 signaling, which may be the key molecular mechanism of HS action in TP treatment. Molecular docking simulations further verified that HS targets the signaling protein MEK with high-affinity. CONCLUSION In this study, we report for the first time that hirsutine boosts MKD/MKM through the MEK/ERK/FOG1/TAL1 signaling pathway and thus represents a promising treatment option for TP.
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Affiliation(s)
- Yaqi Kang
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, China; State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China
| | - Jing Lin
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, China
| | - Long Wang
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, China
| | - Xin Shen
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, China
| | - Jingyan Li
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, China; Department of Medical Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai, Thailand
| | - Anguo Wu
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, China
| | - Liang Yue
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, China
| | - Liuping Wei
- Department of Pharmacy, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Yun Ye
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, China; Department of Pharmacy, Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Jing Yang
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, China
| | - Jianming Wu
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, China; Department of Pharmacy, Affiliated Hospital of Southwest Medical University, Luzhou, China.
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DMAG, a novel countermeasure for the treatment of thrombocytopenia. Mol Med 2021; 27:149. [PMID: 34837956 PMCID: PMC8626956 DOI: 10.1186/s10020-021-00404-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Accepted: 10/25/2021] [Indexed: 11/30/2022] Open
Abstract
Background Thrombocytopenia is one of the most common hematological disease that can be life-threatening caused by bleeding complications. However, the treatment options for thrombocytopenia remain limited. Methods In this study, giemsa staining, phalloidin staining, immunofluorescence and flow cytometry were used to identify the effects of 3,3ʹ-di-O-methylellagic acid 4ʹ-glucoside (DMAG), a natural ellagic acid derived from Sanguisorba officinalis L. (SOL) on megakaryocyte differentiation in HEL cells. Then, thrombocytopenia mice model was constructed by X-ray irradiation to evaluate the therapeutic action of DMAG on thrombocytopenia. Furthermore, the effects of DMAG on platelet function were evaluated by tail bleeding time, platelet aggregation and platelet adhesion assays. Next, network pharmacology approaches were carried out to identify the targets of DMAG. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analyses were performed to elucidate the underling mechanism of DMAG against thrombocytopenia. Finally, molecular docking simulation, molecular dynamics simulation and western blot analysis were used to explore the relationship between DAMG with its targets. Results DMAG significantly promoted megakaryocyte differentiation of HEL cells. DMAG administration accelerated platelet recovery and megakaryopoiesis, shortened tail bleeding time, strengthened platelet aggregation and adhesion in thrombocytopenia mice. Network pharmacology revealed that ITGA2B, ITGB3, VWF, PLEK, TLR2, BCL2, BCL2L1 and TNF were the core targets of DMAG. GO and KEGG pathway enrichment analyses suggested that the core targets of DMAG were enriched in PI3K–Akt signaling pathway, hematopoietic cell lineage, ECM-receptor interaction and platelet activation. Molecular docking simulation and molecular dynamics simulation further indicated that ITGA2B, ITGB3, PLEK and TLR2 displayed strong binding ability with DMAG. Finally, western blot analysis evidenced that DMAG up-regulated the expression of ITGA2B, ITGB3, VWF, p-Akt and PLEK. Conclusion DMAG plays a critical role in promoting megakaryocytes differentiation and platelets production and might be a promising medicine for the treatment of thrombocytopenia. Graphical Abstract ![]()
Supplementary Information The online version contains supplementary material available at 10.1186/s10020-021-00404-1.
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Li H, Jiang X, Shen X, Sun Y, Jiang N, Zeng J, Lin J, Yue L, Lai J, Li Y, Wu A, Wang L, Qin D, Huang F, Mei Q, Yang J, Wu J. TMEA, a Polyphenol in Sanguisorba officinalis, Promotes Thrombocytopoiesis by Upregulating PI3K/Akt Signaling. Front Cell Dev Biol 2021; 9:708331. [PMID: 34485295 PMCID: PMC8416095 DOI: 10.3389/fcell.2021.708331] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Accepted: 07/28/2021] [Indexed: 01/14/2023] Open
Abstract
Thrombocytopenia is closely linked with hemorrhagic diseases, for which induction of thrombopoiesis shows promise as an effective treatment. Polyphenols widely exist in plants and manifest antioxidation and antitumour activities. In this study, we investigated the thrombopoietic effect and mechanism of 3,3′,4′-trimethylellagic acid (TMEA, a polyphenol in Sanguisorba officinalis L.) using in silico prediction and experimental validation. A KEGG analysis indicated that PI3K/Akt signalling functioned as a crucial pathway. Furthermore, the virtual molecular docking results showed high-affinity binding (a docking score of 6.65) between TMEA and mTOR, suggesting that TMEA might target the mTOR protein to modulate signalling activity. After isolation of TMEA, in vitro and in vivo validation revealed that this compound could promote megakaryocyte differentiation/maturation and platelet formation. In addition, it enhanced the phosphorylation of PI3K, Akt, mTOR, and P70S6K and increased the expression of GATA-1 and NF-E2, which confirmed the mechanism prediction. In conclusion, our findings are the first to demonstrate that TMEA may provide a novel therapeutic strategy that relies on the PI3K/Akt/mTOR pathway to facilitate megakaryocyte differentiation and platelet production.
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Affiliation(s)
- Hong Li
- School of Pharmacy, Southwest Medical University, Luzhou, China
| | - Xueqin Jiang
- School of Pharmacy, Southwest Medical University, Luzhou, China.,State Key Laboratory of Biotherapy and Cancer Center, West China Medical School, Sichuan University, Chengdu, China
| | - Xin Shen
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Yueshan Sun
- School of Pharmacy, Southwest Medical University, Luzhou, China.,Medical Research Center, The Third People's Hospital of Chengdu, Chengdu, China
| | - Nan Jiang
- School of Pharmacy, Southwest Medical University, Luzhou, China
| | - Jing Zeng
- School of Pharmacy, Southwest Medical University, Luzhou, China
| | - Jing Lin
- School of Pharmacy, Southwest Medical University, Luzhou, China
| | - Liang Yue
- School of Pharmacy, Southwest Medical University, Luzhou, China
| | - Jia Lai
- School of Pharmacy, Southwest Medical University, Luzhou, China
| | - Yan Li
- School of Pharmacy, Southwest Medical University, Luzhou, China
| | - Anguo Wu
- School of Pharmacy, Southwest Medical University, Luzhou, China.,The Key Laboratory of Medical Electrophysiology, Medical Key Laboratory for Drug Discovery and Druggability Evaluation of Sichuan Province, Luzhou Key Laboratory of Activity Screening and Druggability Evaluation for Chinese Materia Medica, Ministry of Education of China, Institute of Cardiovascular Research, Luzhou, China
| | - Long Wang
- School of Pharmacy, Southwest Medical University, Luzhou, China.,The Key Laboratory of Medical Electrophysiology, Medical Key Laboratory for Drug Discovery and Druggability Evaluation of Sichuan Province, Luzhou Key Laboratory of Activity Screening and Druggability Evaluation for Chinese Materia Medica, Ministry of Education of China, Institute of Cardiovascular Research, Luzhou, China
| | - Dalian Qin
- School of Pharmacy, Southwest Medical University, Luzhou, China.,The Key Laboratory of Medical Electrophysiology, Medical Key Laboratory for Drug Discovery and Druggability Evaluation of Sichuan Province, Luzhou Key Laboratory of Activity Screening and Druggability Evaluation for Chinese Materia Medica, Ministry of Education of China, Institute of Cardiovascular Research, Luzhou, China
| | - Feihong Huang
- School of Pharmacy, Southwest Medical University, Luzhou, China
| | - Qibing Mei
- The Key Laboratory of Medical Electrophysiology, Medical Key Laboratory for Drug Discovery and Druggability Evaluation of Sichuan Province, Luzhou Key Laboratory of Activity Screening and Druggability Evaluation for Chinese Materia Medica, Ministry of Education of China, Institute of Cardiovascular Research, Luzhou, China
| | - Jing Yang
- School of Pharmacy, Southwest Medical University, Luzhou, China
| | - Jianming Wu
- School of Pharmacy, Southwest Medical University, Luzhou, China.,The Key Laboratory of Medical Electrophysiology, Medical Key Laboratory for Drug Discovery and Druggability Evaluation of Sichuan Province, Luzhou Key Laboratory of Activity Screening and Druggability Evaluation for Chinese Materia Medica, Ministry of Education of China, Institute of Cardiovascular Research, Luzhou, China
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Klimczak M, Darago A, Bruchajzer E, Domeradzka-Gajda K, Stepnik M, Kuzajska K, Kilanowicz A. The effects of hexachloronaphthalene on selected parameters of heme biosynthesis and systemic toxicity in female wistar rats after 90-day oral exposure. ENVIRONMENTAL TOXICOLOGY 2018; 33:695-705. [PMID: 29663608 DOI: 10.1002/tox.22558] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2018] [Revised: 03/19/2018] [Accepted: 03/25/2018] [Indexed: 06/08/2023]
Abstract
Hexachloronaphthalenes (HxCNs) are the most toxic congeners of polychlorinated naphthalenes, a group of compounds lately included into the list of persistent organic pollutants (POPs). This study presents the effects of 90-day intragastric administration of HxCN to female Wistar rats at doses of 0.03, 0.1, and 0.3 mg/kg body weight. The study examined selected parameters of the heme synthesis pathway, oxidative stress, hepatic cytochromes level, and basic hematology indicators. A micronucleus test was also performed. The subchronic exposure of rats to HxCN resulted in disruption of heme biosynthesis, hematological disturbances, and hepatotoxicity. The highest dose of HxCN inhibited aminolevulinic acid dehydratase (ALA-D) and uroporphyrinogen decarboxylase (URO-D). Accumulation of higher carboxylated porphyrins in the liver and increased excretion of 5-aminolevulinic acid in the urine was observed after a dose of 0.1 mg/kg body weight. The most sensitive effect of HxCN in rats was very strong induction of hepatic CYP1A1 activity, which was observed after the lowest dose. The highest dose of HxCN induced significant thrombocytopenia, thymic atrophy and hepatotoxicity, expressed as hepatomegaly and hepatic steatosis.
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Affiliation(s)
- Michal Klimczak
- Department of Toxicology, Faculty of Pharmacy, Medical University of Lodz, Muszynskiego 1, Lodz, 90-151, Poland
| | - Adam Darago
- Department of Toxicology, Faculty of Pharmacy, Medical University of Lodz, Muszynskiego 1, Lodz, 90-151, Poland
| | - Elzbieta Bruchajzer
- Department of Toxicology, Faculty of Pharmacy, Medical University of Lodz, Muszynskiego 1, Lodz, 90-151, Poland
| | - Katarzyna Domeradzka-Gajda
- Department of Toxicology and Carcinogenesis, Nofer Institute of Occupational Medicine, Sw. Teresy 8, Lodz, 91-348, Poland
| | - Maciej Stepnik
- Department of Toxicology and Carcinogenesis, Nofer Institute of Occupational Medicine, Sw. Teresy 8, Lodz, 91-348, Poland
| | - Katarzyna Kuzajska
- Department of Toxicology, Faculty of Pharmacy, Medical University of Lodz, Muszynskiego 1, Lodz, 90-151, Poland
| | - Anna Kilanowicz
- Department of Toxicology, Faculty of Pharmacy, Medical University of Lodz, Muszynskiego 1, Lodz, 90-151, Poland
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