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Yi T, Luo J, Liao R, Wang L, Wu A, Li Y, Zhou L, Ni C, Wang K, Tang X, Zou W, Wu J. An Innovative Inducer of Platelet Production, Isochlorogenic Acid A, Is Uncovered through the Application of Deep Neural Networks. Biomolecules 2024; 14:267. [PMID: 38540688 PMCID: PMC10968240 DOI: 10.3390/biom14030267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Revised: 02/16/2024] [Accepted: 02/20/2024] [Indexed: 06/28/2024] Open
Abstract
(1) Background: Radiation-induced thrombocytopenia (RIT) often occurs in cancer patients undergoing radiation therapy, which can result in morbidity and even death. However, a notable deficiency exists in the availability of specific drugs designed for the treatment of RIT. (2) Methods: In our pursuit of new drugs for RIT treatment, we employed three deep learning (DL) algorithms: convolutional neural network (CNN), deep neural network (DNN), and a hybrid neural network that combines the computational characteristics of the two. These algorithms construct computational models that can screen compounds for drug activity by utilizing the distinct physicochemical properties of the molecules. The best model underwent testing using a set of 10 drugs endorsed by the US Food and Drug Administration (FDA) specifically for the treatment of thrombocytopenia. (3) Results: The Hybrid CNN+DNN (HCD) model demonstrated the most effective predictive performance on the test dataset, achieving an accuracy of 98.3% and a precision of 97.0%. Both metrics surpassed the performance of the other models, and the model predicted that seven FDA drugs would exhibit activity. Isochlorogenic acid A, identified through screening the Chinese Pharmacopoeia Natural Product Library, was subsequently subjected to experimental verification. The results indicated a substantial enhancement in the differentiation and maturation of megakaryocytes (MKs), along with a notable increase in platelet production. (4) Conclusions: This underscores the potential therapeutic efficacy of isochlorogenic acid A in addressing RIT.
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Affiliation(s)
- Taian Yi
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China; (T.Y.); (Y.L.)
| | - Jiesi Luo
- Department of Chemistry, School of Basic Medical Sciences, Southwest Medical University, Luzhou 646000, China;
| | - Ruixue Liao
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou 646000, China (L.W.); (A.W.); (L.Z.); (C.N.); (K.W.); (X.T.)
| | - Long Wang
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou 646000, China (L.W.); (A.W.); (L.Z.); (C.N.); (K.W.); (X.T.)
| | - Anguo Wu
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou 646000, China (L.W.); (A.W.); (L.Z.); (C.N.); (K.W.); (X.T.)
| | - Yueyue Li
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China; (T.Y.); (Y.L.)
| | - Ling Zhou
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou 646000, China (L.W.); (A.W.); (L.Z.); (C.N.); (K.W.); (X.T.)
| | - Chengyang Ni
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou 646000, China (L.W.); (A.W.); (L.Z.); (C.N.); (K.W.); (X.T.)
| | - Kai Wang
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou 646000, China (L.W.); (A.W.); (L.Z.); (C.N.); (K.W.); (X.T.)
| | - Xiaoqin Tang
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou 646000, China (L.W.); (A.W.); (L.Z.); (C.N.); (K.W.); (X.T.)
| | - Wenjun Zou
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China; (T.Y.); (Y.L.)
| | - Jianming Wu
- Department of Chemistry, School of Basic Medical Sciences, Southwest Medical University, Luzhou 646000, China;
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou 646000, China (L.W.); (A.W.); (L.Z.); (C.N.); (K.W.); (X.T.)
- The Institute of Cardiovascular Research, Key Laboratory of Medical Electrophysiology of Ministry of Education, Luzhou 646000, China
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Dhenge A, Limbkar K, Melinkeri S, Kale VP, Limaye L. Arachidonic acid and Docosahexanoic acid enhance platelet formation from human apheresis-derived CD34 + cells. Cell Cycle 2017; 16:979-990. [PMID: 28388313 DOI: 10.1080/15384101.2017.1312233] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
Abstract
An Aberration in megakaryopoiesis and thrombopoiesis, 2 important processes that maintain hemostasis, leads to thrombocytopenia. Though platelet transfusions are used to treat this condition, blood banks frequently face a shortage of platelets. Therefore, methods to generate platelets on a large scale are strongly desirable. However, to generate megakaryocytes (MKs) and platelets (PLTs) in numbers sufficient for clinical application, it is essential to understand the mechanism of platelet production and explore efficient strategies accordingly. We have earlier reported that the N-6 and N-3 poly-unsaturated fatty acids (PUFAs), Arachidonic acid (AA)/Docosahexanoic acid (DHA) have beneficial effect on the generation of MKs and PLTs from umbilical cord blood derived CD34+ cells. Here we tested if a similar effect is observed with peripheral blood derived CD34+ cells, which are more commonly used in transplantation settings. We found a significant enhancement in cell numbers, surface marker expression, cellular ploidy and expression of cytoskeletal components during PLT biogenesis in cultures exposed to media containing AA/DHA than control cultures that were not exposed to these PUFAs. The test cells engrafted more efficiently in NOD/SCID mice than control cells. AA/DHA appears to have enhanced MK/PLT generation through upregulation of the NOTCH and AKT pathways. Our data show that PUFAs could be valuable additives in the culture system for large scale production of platelets for clinical applications.
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Affiliation(s)
- Ankita Dhenge
- a National Centre for Cell Science, NCCS Complex, Savitribai Phule Pune University Campus , Pune , India
| | - Kedar Limbkar
- a National Centre for Cell Science, NCCS Complex, Savitribai Phule Pune University Campus , Pune , India
| | - Sameer Melinkeri
- b Blood and Marrow Transplant Unit, Deenanath Mangeshkar Hospital , Pune , India
| | - Vaijayanti Prakash Kale
- a National Centre for Cell Science, NCCS Complex, Savitribai Phule Pune University Campus , Pune , India
| | - Lalita Limaye
- a National Centre for Cell Science, NCCS Complex, Savitribai Phule Pune University Campus , Pune , India
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Soves CP, Miller JD, Begun DL, Taichman RS, Hankenson KD, Goldstein SA. Megakaryocytes are mechanically responsive and influence osteoblast proliferation and differentiation. Bone 2014; 66:111-20. [PMID: 24882736 PMCID: PMC4125454 DOI: 10.1016/j.bone.2014.05.015] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/25/2013] [Revised: 05/12/2014] [Accepted: 05/23/2014] [Indexed: 12/21/2022]
Abstract
Maintenance of bone mass and geometry is influenced by mechanical stimuli. Paradigms suggest that osteocytes embedded within the mineralized matrix and osteoblasts on the bone surfaces are the primary responders to physical forces. However, other cells within the bone marrow cavity, such as megakaryocytes (MKs), are also subject to mechanical forces. Recent studies have highlighted the potent effects of MKs on osteoblast proliferation as well as bone formation in vivo. We hypothesize that MKs are capable of responding to physical forces and that the interactions between these cells and osteoblasts can be influenced by mechanical stimulation. In this study, we demonstrate that two MK cell lines respond to fluid shear stress in culture. Furthermore, using laser capture microdissection, we isolated MKs from histologic sections of murine tibiae that were exposed to compressive loads in vivo. C-fos, a transcription factor shown to be upregulated in response to load in various tissue types, was increased in MKs from loaded relative to non-loaded limbs at a level comparable to that of osteocytes from the same limbs. We also developed a co-culture system to address whether mechanical stimulation of MKs in culture would impact osteoblast proliferation and differentiation. The presence of MKs in co-culture, but not conditioned media, had dramatic effects on proliferation of preosteoblast MC3T3-E1 cells in culture. Our data suggests a minimal decrease in proliferation as well as an increase in mineralization capacity of osteoblasts co-cultured with MKs exposed to shear compared to co-cultures with unstimulated MKs.
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Affiliation(s)
- Constance P Soves
- Orthopaedic Research Laboratories, University of Michigan, Room 2003 Biomedical Sciences Research Building, 109 Zina Pitcher Place, Ann Arbor, MI 48109, USA
| | - Joshua D Miller
- Orthopaedic Research Laboratories, University of Michigan, Room 2003 Biomedical Sciences Research Building, 109 Zina Pitcher Place, Ann Arbor, MI 48109, USA
| | - Dana L Begun
- Orthopaedic Research Laboratories, University of Michigan, Room 2003 Biomedical Sciences Research Building, 109 Zina Pitcher Place, Ann Arbor, MI 48109, USA
| | - Russell S Taichman
- Department of Periodontics and Oral Medicine, University of Michigan School of Dentistry, 1011 North University Ave., Ann Arbor, MI 48109, USA
| | - Kurt D Hankenson
- Department of Clinical Studies-New Bolton Center, School of Veterinary Medicine, University of Pennsylvania, Room 145 Myrin Bldg, Kennett Square PA; Department of Orthopaedic Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia PA
| | - Steven A Goldstein
- Orthopaedic Research Laboratories, University of Michigan, Room 2003 Biomedical Sciences Research Building, 109 Zina Pitcher Place, Ann Arbor, MI 48109, USA.
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Granot D, David-Schwartz R, Kelly G. Hexose kinases and their role in sugar-sensing and plant development. FRONTIERS IN PLANT SCIENCE 2013; 4:44. [PMID: 23487525 PMCID: PMC3594732 DOI: 10.3389/fpls.2013.00044] [Citation(s) in RCA: 117] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2012] [Accepted: 02/20/2013] [Indexed: 05/18/2023]
Abstract
Hexose sugars, such as glucose and fructose produced in plants, are ubiquitous in most organisms and are the origin of most of the organic matter found in nature. To be utilized, hexose sugars must first be phosphorylated. The central role of hexose-phosphorylating enzymes has attracted the attention of many researchers, leading to novel discoveries. Only two families of enzymes capable of phosphorylating glucose and fructose have been identified in plants; hexokinases (HXKs), and fructokinases (FRKs). Intensive investigations of these two families in numerous plant species have yielded a wealth of knowledge regarding the genes number, enzymatic characterization, intracellular localization, and developmental and physiological roles of several HXKs and FRKs. The emerging picture indicates that HXK and FRK enzymes found at specific intracellular locations play distinct roles in plant metabolism and development. Individual HXKs were shown for the first time to be dual-function enzymes - sensing sugar levels independent of their catalytic activity and controlling gene expression and major developmental pathways, as well as hormonal interactions. FRK, on the other hand, seems to play a central metabolic role in vascular tissues, controlling the amounts of sugars allocated for vascular development. While a clearer picture of the roles of these two types of enzymes is emerging, many questions remain unsolved, such as the specific tissues and types of cells in which these enzymes function, the roles of individual HXK and FRK genes, and how these enzymes interact with hormones in the regulation of developmental processes. It is anticipated that ongoing efforts will broaden our knowledge of these important plant enzymes and their potential uses in the modification of plant traits.
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Affiliation(s)
- David Granot
- Institute of Plant Sciences, The Volcani Center, Agricultural Research OrganizationBet Dagan, Israel
| | - Rakefet David-Schwartz
- Institute of Plant Sciences, The Volcani Center, Agricultural Research OrganizationBet Dagan, Israel
| | - Gilor Kelly
- Institute of Plant Sciences, The Volcani Center, Agricultural Research OrganizationBet Dagan, Israel
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Paim CB, Paim FC, Da Silva AS, França RT, Costa MM, Leal CA, Soares JF, Labruna MB, Schetinger MR, Mazzanti A, Mazzanti CM, Monteiro SG, Lopes ST. Thrombocytopenia and platelet activity in dogs experimentally infected with Rangelia vitalii. Vet Parasitol 2012; 185:131-7. [DOI: 10.1016/j.vetpar.2011.09.039] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2011] [Revised: 09/26/2011] [Accepted: 09/28/2011] [Indexed: 11/29/2022]
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Yu M, Cantor AB. Megakaryopoiesis and thrombopoiesis: an update on cytokines and lineage surface markers. Methods Mol Biol 2012; 788:291-303. [PMID: 22130715 DOI: 10.1007/978-1-61779-307-3_20] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Megakaryopoiesis is the process by which mature megakaryocytes (MKs) develop from hematopoietic stem cells (HSCs). The biological function of MKs is to produce platelets, which play critical roles in hemostasis and contribute to angiogenesis and wound healing. The generation of platelets from MKs is termed thrombopoiesis. The cytokine thrombopoietin (TPO) is the major regulator of megakaryopoiesis and thrombopoiesis. It binds to its surface receptor, c-Mpl, and acts through multiple downstream signaling pathways, including the PI-3 kinase-Akt, MAPK, and ERK1/ERK2 pathways. However, non-TPO pathways, such as the SDF1/CXCR4 axis, Notch signaling, src family kinases, integrin signaling, and Platelet Factor 4/low-density lipoprotein receptor-related protein 1, have more recently been recognized to influence megakaryopoiesis and thrombopoiesis in vitro and in vivo. In this chapter, we review megakaryopoiesis and thrombopoiesis with emphasis on cell surface marker changes during their differentiation from HSCs, and the classical cytokines that affect these developmental stages. We also discuss non-TPO regulators and their effects on in vitro culture systems.
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Affiliation(s)
- Ming Yu
- Laboratories of Biochemistry and Molecular Biology, The Rockefeller University New York, New York, NY, USA
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Contributions of TRAIL-mediated megakaryocyte apoptosis to impaired megakaryocyte and platelet production in immune thrombocytopenia. Blood 2010; 116:4307-16. [PMID: 20671119 DOI: 10.1182/blood-2010-02-267435] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Recent in vitro studies provide evidence for autoantibody-induced suppression of megakaryocytopoiesis and show a reduction in megakaryocyte production and maturation in the presence of immune thrombocytopenia (ITP) plasma. Here, we present CD34(+) cells from healthy umbilical cord blood mononuclear cells cultured in medium containing thrombopoietin, stem cell factor, interleukin-3, and 10% plasma from either ITP patients or healthy subjects. The quantity, quality, and apoptosis of megakaryocytes were measured. We observed that most ITP plasma boosted megakaryocyte quantity but impaired quality, resulting in significantly less polyploidy cells (N ≥ 4) and platelet release. In these megakaryocytes, we found a lower percentage of cell apoptosis, a lower expression of tumor necrosis factor-related apoptosis-inducing ligand (TRAIL), and a higher expression of Bcl-xL. Furthermore, there was a decrease of sTRAIL in ITP plasma and in cell culture supernatants of this group compared with the control group. Our findings suggest that decreased apoptosis of megakaryocytes also contributes to in vitro dysmegakaryocytopoiesis and reduced platelet production. The abnormal expression of sTRAIL in plasma and TRAIL and Bcl-xL in megakaryocytes may play a role in the pathogenesis of impaired megakaryocyte apoptosis in ITP.
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Fortoul TI, González-Villalva A, Piñón-Zarate G, Rodríguez-Lara V, Montaño LF, Saldivar-Osorio L. Ultrastructural megakaryocyte modifications after vanadium inhalation in spleen and bone marrow. JOURNAL OF ELECTRON MICROSCOPY 2009; 58:375-380. [PMID: 19567481 DOI: 10.1093/jmicro/dfp031] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Previous reports from our laboratory informed in mice an increase in platelets in blood, and megakaryocytes in spleen and bone marrow after vanadium inhalation. This element has become important in recent years because of its increased presence as an air pollutant. With this precedent, we evaluate the ultrastructural modifications in MKs from the spleen and bone marrow in our mouse experimental model. Mice inhaled 0.02 M V(2)O(5) 1 h twice a week for 12 weeks. Tissues were processed for transmission electron microscopy. Results indicate an increase in the size and cytoplasmic granular content, as well as nuclear changes in MKs of exposed mice, changes which correlate with the time of exposure. Modifications in MKs described here suggest that inhaled vanadium induce megakaryocytic maturation, a raise in its granules content and demarcation membrane systems, which may lead to a rise in circulating platelet production and an increased risk for thromboembolic events.
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Affiliation(s)
- Teresa I Fortoul
- Department of Cellular and Tissular Biology, School of Medicine, National University of Mexico, Mexico City, Mexico.
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Li S, Wang L, Zhao C, Li L, Peng J, Hou M. CD8+ T cells suppress autologous megakaryocyte apoptosis in idiopathic thrombocytopenic purpura. Br J Haematol 2008; 139:605-11. [PMID: 17979946 DOI: 10.1111/j.1365-2141.2007.06737.x] [Citation(s) in RCA: 78] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
To investigate the effect and mechanism of the CD8+ T cells in bone marrow on autologous megakaryocytopoiesis in idiopathic thrombocytopenic purpura (ITP) patients, we prepared bone marrow mononuclear cells (MNCs) from 15 chronic ITP patients and 13 controls. MNCs were cultured in vitro directly (MNC group) or after depleting CD8+ T cells (CD8+ T-dep group) or adding purified autologous CD8+ T cells to CD8+ T-dep MNCs (Coculture group) or adding dexamethasone to the coculture (DEX group) all in semi-solid and liquid culture systems. The quantity and quality of megakaryocytes were measured. The megakaryocyte count was increased in the presence of autologous CD8+ T cells of patients with chronic ITP, while platelet production was reduced. In addition, lower percentages of polyploidy and apoptotic megakaryocytes, and higher levels of soluble Fas (sFas) in supernatant were observed. Dexamethasone successfully corrected this effect of CD8+ T cells on autologous megakaryocytopoiesis. These studies provide evidence that activated CD8+ T cells in bone marrow of patients with chronic ITP might suppress megakaryocyte apoptosis, leading to impaired platelet production. Megakaryocyte apoptosis would be a novel target for the management of ITP.
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Affiliation(s)
- Shuguang Li
- Haematology Oncology Centre, Qilu Hospital of Shandong University, Jinan, Shandong, China
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