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Li M, Xue Y, Chi L, Jin L. Heparin Oligosaccharides as Vasoactive Intestinal Peptide Inhibitors via their Binding Process Characterization. Curr Protein Pept Sci 2024; 25:480-491. [PMID: 38284716 DOI: 10.2174/0113892037287189240122110819] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Revised: 01/02/2024] [Accepted: 01/12/2024] [Indexed: 01/30/2024]
Abstract
BACKGROUND It has been proven that vasoactive intestinal peptide (VIP) was involved in the pathogenesis of prostate cancer. Cardin et al. found that by an alanine scan, the heparin- binding site on VIP was exactly the same sequence in VIP and its receptor. Therefore, heparin could competitively block the binding of VIP and its receptor. However, the structure-activity relationship between heparin and VIP has not been reported, especially in terms of the sequence and sulfation patterns of heparin oligosaccharides upon binding to VIP. OBJECTIVE A variety of experiments were designed to study the binding process and structure-activity relationship between heparin oligosaccharides and VIP. METHODS Heparin was enzymatically digested and purified to produce heparin oligosaccharides, and the structures were characterized by NMR. The binding capacity between heparin oligosaccharides and VIP was analyzed by GMSA and ITC experiments. The binding between heparin oligosaccharides and VIP was simulated using a molecular docking program to show the complex. ELISA assay was used to investigate the effect of non-anticoagulant heparin oligosaccharides on the VIP-mediated cAMP/PKA signaling pathway in vitro. RESULTS The results indicated that both the length and the sulfation pattern of heparin oligosaccharides affected its binding to VIP. VIP could induce the expression of cAMP at a higher level in PC3 cells, which could be regulated by the interaction of heparin oligosaccharides and VIP. CONCLUSION The binding between heparin oligosaccharides and VIP could block the binding between VIP and its receptor on tumor cells. Downloading the regulation of the expression level of cAMP could possibly further affect the subsequent activation of PKA. These non-anticoagulant heparin oligosaccharides may block the VIP-mediated cAMP/PKA signaling pathway and thus exert their antitumor activity.
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Affiliation(s)
- Meixin Li
- National Glycoengineering Research Center, NMPA Key Laboratory for Quality Research and Evaluation of Carbohydrate- based Medicine, Shandong University, Qingdao, Shandong, 266237, China
| | - Yaqi Xue
- National Glycoengineering Research Center, NMPA Key Laboratory for Quality Research and Evaluation of Carbohydrate- based Medicine, Shandong University, Qingdao, Shandong, 266237, China
| | - Lianli Chi
- National Glycoengineering Research Center, NMPA Key Laboratory for Quality Research and Evaluation of Carbohydrate- based Medicine, Shandong University, Qingdao, Shandong, 266237, China
| | - Lan Jin
- National Glycoengineering Research Center, NMPA Key Laboratory for Quality Research and Evaluation of Carbohydrate- based Medicine, Shandong University, Qingdao, Shandong, 266237, China
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Stolarek M, Pycior A, Bonarek P, Opydo M, Kolaczkowska E, Kamiński K, Mogielnicki A, Szczubiałka K. Biological Properties of Heparins Modified with an Arylazopyrazole-Based Photoswitch. J Med Chem 2023; 66:1778-1789. [PMID: 36657057 PMCID: PMC9923745 DOI: 10.1021/acs.jmedchem.2c01616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Unfractionated heparin (UFH) and enoxaparin (Enox) were substituted with a photoswitch (PS) showing quantitative trans-cis and cis-trans photoisomerizations. Long half-life of the cis photoisomer enabled comparison of the properties of heparins substituted with both PS photoisomers. Hydrodynamic diameter, Dh, of UFH-PS decreased upon trans-cis photoisomerization, the change being more pronounced for UFH-PS with a higher degree of substitution (DS), while Dh of Enox-PS did not significantly change. The anticoagulative properties of substituted heparins were significantly attenuated compared to non-substituted compounds. The interaction of UFH-PS with HSA, lysozyme, and protamine was studied with ITC. Under serum-free conditions, UFH-PS-trans with a high DS stimulated proliferation of murine fibroblasts, while UFH-PS-cis decreased the viability of these cells. Under serum conditions, both UFH-PS-cis and UFH-PS-trans decreased cell viability, the reduction for UFH-PS-cis being higher than that for UFH-PS-trans. Neither Enox-PS-trans nor Enox-PS-cis influenced the viability at concentrations prolonging aPTT, while at higher concentrations their cytotoxicity did not differ.
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Affiliation(s)
- Marta Stolarek
- Faculty
of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Krakow, Poland
| | - Aleksandra Pycior
- Faculty
of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Krakow, Poland
| | - Piotr Bonarek
- Faculty
of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Gronostajowa 7, 30-387 Krakow, Poland
| | - Małgorzata Opydo
- Laboratory
of Experimental Hematology, Institute of Zoology and Biomedical Research,
Faculty of Biology, Jagiellonian University, Gronostajowa 9, 30-387 Krakow, Poland
| | - Elzbieta Kolaczkowska
- Laboratory
of Experimental Hematology, Institute of Zoology and Biomedical Research,
Faculty of Biology, Jagiellonian University, Gronostajowa 9, 30-387 Krakow, Poland
| | - Kamil Kamiński
- Faculty
of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Krakow, Poland
| | - Andrzej Mogielnicki
- Department
of Pharmacodynamics, Medical University
of Bialystok, Mickiewicza 2c, 15-089 Bialystok, Poland
| | - Krzysztof Szczubiałka
- Faculty
of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Krakow, Poland,
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Liu W, Ye Q, Xi W, Li Y, Zhou X, Wang Y, Ye Z, Hai K. The ERK/CREB/PTN/syndecan-3 pathway involves in heparin-mediated neuro-protection and neuro-regeneration against cerebral ischemia-reperfusion injury following cardiac arrest. Int Immunopharmacol 2021; 98:107689. [PMID: 34153666 DOI: 10.1016/j.intimp.2021.107689] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Revised: 03/23/2021] [Accepted: 04/18/2021] [Indexed: 11/30/2022]
Abstract
BACKGROUND Heparin, a commonly used anticoagulant, has been found to improve cerebral ischemia-reperfusion injury (CIR-CA) following cardiopulmonary resuscitation (CPR). Here, we aimed to explore the role of pleiotrophin (PTN)/syndecan-3 pathway in heparin therapy for CIR-CA. MATERIALS AND METHODS The CA-CPR model was constructed in Sprague-Dawley (SD) rats, which were treated with low molecular weight heparin, and the neurological changes and brain histopathological changes were evaluated. For in-vitro experiments, the ischemic injury model of primary neurons was established by oxygen and glucose deprivation (OGD), and the neuron regeneration was detected via the Cell counting Kit-8 (CCK8) method, flow cytometry and microscopy. CREB antagonist (KG-501), ERK antagonist (PD98059) and si-PTN were used respectively to inhibit the expression of CREB, ERK and PTN in cells, so as to explore the role of heparin in regulating neuronal regeneration. RESULTS Compared with the sham rats, the neurological deficits and cerebral edema of CA-CPR rats were significantly improved after heparin treatment. Heparin also attenuated OGD-mediated neuronal apoptosis and promoted neurite outgrowth in vitro. Moreover, heparin attenuated CA-CPR-mediated neuronal apoptosis and microglial neuroinflammation. In terms of the mechanism, heparin upregulated the expression of ERK, CREB, NF200, BDNF, NGF, PTN and syndecan-3 in the rat brains. Inhibition of ERK, CREB and interference with PTN expression notably weakened the heparin-mediated neuroprotective effects and restrained the expression of ERK/CREB and PTN/syndecan-3 pathway. CONCLUSION Heparin attenuates the secondary brain injury induced by CA-CPR through regulating the ERK/CREB-mediated PTN/syndecan-3 pathway.
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Affiliation(s)
- Wenxun Liu
- Ningxia Medical University, Yinchuan 750004, Ningxia, China; Department of Anesthesiology, People's Hospital of Ningxia Hui Autonomous Region, Yinchuan 750002, Ningxia, China; Ningxia Anesthesia Clinincal Medical Research Center, Yinchuan 750002, Ningxia, China
| | - Qingshan Ye
- Department of Anesthesiology, People's Hospital of Ningxia Hui Autonomous Region, Yinchuan 750002, Ningxia, China; Ningxia Anesthesia Clinincal Medical Research Center, Yinchuan 750002, Ningxia, China
| | - Wenhua Xi
- Ningxia Medical University, Yinchuan 750004, Ningxia, China
| | - Yan Li
- Ningxia Medical University, Yinchuan 750004, Ningxia, China
| | - Xiaohong Zhou
- Department of Anesthesiology, People's Hospital of Ningxia Hui Autonomous Region, Yinchuan 750002, Ningxia, China
| | - Yun Wang
- Department of Anesthesiology, People's Hospital of Ningxia Hui Autonomous Region, Yinchuan 750002, Ningxia, China; Ningxia Anesthesia Clinincal Medical Research Center, Yinchuan 750002, Ningxia, China
| | - Zhenhai Ye
- Department of Anesthesiology, People's Hospital of Ningxia Hui Autonomous Region, Yinchuan 750002, Ningxia, China
| | - Kerong Hai
- Department of Anesthesiology, People's Hospital of Ningxia Hui Autonomous Region, Yinchuan 750002, Ningxia, China; Ningxia Anesthesia Clinincal Medical Research Center, Yinchuan 750002, Ningxia, China.
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4
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Vagionas D, Politou M, Kompoti M, Papadakis DD, Kostakou E, Theodoulou D, Kaniaris E, Rovina N, Koutsoukou A, Vasileiadis I. Unfractionated heparin reduces hepcidin levels in critically ill patients. Intern Med J 2021; 51:797-801. [PMID: 34047020 DOI: 10.1111/imj.15317] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Revised: 09/08/2020] [Accepted: 09/10/2020] [Indexed: 11/27/2022]
Abstract
A strong anti-hepcidin activity has been observed in heparins. Mean hepcidin levels were significantly reduced compared to baseline, following the first day of unfractionated heparin administration in critically patients. Heparin displayed a strong independent negative association with hepcidin. These results may lead to future treatment methods of forms of anaemia characterised by hepcidin excess, common among the critically ill.
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Affiliation(s)
- Dimitrios Vagionas
- Intensive Care Unit, First Department of Respiratory Medicine, National and Kapodistrian University of Athens, Sotiria Hospital, Athens, Greece
| | - Marianna Politou
- Haematology Laboratory-Blood Bank, Aretaieion Hospital, National and Kapodistrian University of Athens, Athens, Greece
| | - Maria Kompoti
- Intensive Care Unit, General Hospital of Eleusis Thriasio, Athens, Greece
| | - Dimitrios-Dorotheos Papadakis
- Intensive Care Unit, First Department of Respiratory Medicine, National and Kapodistrian University of Athens, Sotiria Hospital, Athens, Greece
| | - Eirini Kostakou
- Intensive Care Unit, First Department of Respiratory Medicine, National and Kapodistrian University of Athens, Sotiria Hospital, Athens, Greece
| | - Danai Theodoulou
- Intensive Care Unit, First Department of Respiratory Medicine, National and Kapodistrian University of Athens, Sotiria Hospital, Athens, Greece
| | - Evangelos Kaniaris
- Intensive Care Unit, First Department of Respiratory Medicine, National and Kapodistrian University of Athens, Sotiria Hospital, Athens, Greece
| | - Nikoletta Rovina
- Intensive Care Unit, First Department of Respiratory Medicine, National and Kapodistrian University of Athens, Sotiria Hospital, Athens, Greece
| | - Antonia Koutsoukou
- Intensive Care Unit, First Department of Respiratory Medicine, National and Kapodistrian University of Athens, Sotiria Hospital, Athens, Greece
| | - Ioannis Vasileiadis
- Intensive Care Unit, First Department of Respiratory Medicine, National and Kapodistrian University of Athens, Sotiria Hospital, Athens, Greece
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Zhang R, Zhang T, Lv Y, Qin P, Li H, Li JP, Tan T. Selective binding of heparin oligosaccharides in a magnetic thermoresponsive molecularly imprinted polymer. Talanta 2019; 201:441-449. [DOI: 10.1016/j.talanta.2019.04.050] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Revised: 04/14/2019] [Accepted: 04/19/2019] [Indexed: 12/16/2022]
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