1
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Li D, Wang S, Dong J, Li J, Wang X, Liu F, Ba X. Inhibition and disaggregation effect of flavonoid-derived carbonized polymer dots on protein amyloid aggregation. Colloids Surf B Biointerfaces 2024; 238:113928. [PMID: 38692175 DOI: 10.1016/j.colsurfb.2024.113928] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2024] [Revised: 04/19/2024] [Accepted: 04/23/2024] [Indexed: 05/03/2024]
Abstract
In this research, four water-insoluble flavonoid compounds were utilized and reacted with arginine to prepare four carbonized polymer dots with good water-solubility in a hydrothermal reactor. Structural characterization demonstrated that the prepared carbonized polymer dots were classic core-shell structure. Effect of the prepared carbonized polymer dots on protein amyloid aggregation was further investigated using hen egg white lysozyme and human lysozyme as model protein in aqueous solution. All of the prepared carbonized polymer dots could retard the amyloid aggregation of hen egg white lysozyme and human lysozyme in a dose-depended manner. All measurements displayed that the inhibition ratio of luteolin-derived carbonized polymer dots (CPDs-1) was higher than that of the other three carbonized polymer dots under the same dosage. This result may be interpreted by the highest content of phenolic hydroxyl groups on the periphery. The inhibition ratio of CPDs-1 on hen egg white lysozyme and human lysozyme reached 88 % and 83 % at the concentration of 0.5 mg/mL, respectively. CPDs-1 also could disaggregate the formed mature amyloid fibrils into short aggregates.
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Affiliation(s)
- Dexin Li
- College of Chemistry and Materials Science, Hebei University, Baoding 071002, PR China
| | - Sujuan Wang
- College of Chemistry and Materials Science, Hebei University, Baoding 071002, PR China.
| | - Jiawei Dong
- College of Chemistry and Materials Science, Hebei University, Baoding 071002, PR China
| | - Jie Li
- College of Chemistry and Materials Science, Hebei University, Baoding 071002, PR China
| | - Xinnan Wang
- College of Chemistry and Materials Science, Hebei University, Baoding 071002, PR China
| | - Feng Liu
- College of Chemistry and Materials Science, Hebei University, Baoding 071002, PR China
| | - Xinwu Ba
- College of Chemistry and Materials Science, Hebei University, Baoding 071002, PR China.
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2
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Niu C, Dong M, Niu Y. Natural polyphenol: Their pathogenesis-targeting therapeutic potential in Alzheimer's disease. Eur J Med Chem 2024; 269:116359. [PMID: 38537514 DOI: 10.1016/j.ejmech.2024.116359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2023] [Revised: 03/17/2024] [Accepted: 03/24/2024] [Indexed: 04/07/2024]
Abstract
Alzheimer's disease (AD) is a detrimental neurodegenerative disease affecting the elderly. Clinically, it is characterized by progressive memory decline and subsequent loss of broader cognitive functions. Current drugs provide only symptomatic relief but do not have profound disease-modifying effects. There is an unmet need to identify novel pharmacological agents for AD therapy. Neuropathologically, the characteristic hallmarks of the disease are extracellular senile plaques containing amyloid β-peptides and intracellular neurofibrillary tangles containing hyperphosphorylated microtubule-associated protein tau. Simultaneously, oxidative stress, neuroinflammation and mitochondrial dysfunction in specific brain regions are early events during the process of AD pathologic changes and are associated with Aβ/tau toxicity. Here, we first summarized probable pathogenic mechanisms leading to neurodegeneration and hopefully identify pathways that serve as specific targets to improve therapy for AD. We then reviewed the mechanisms that underlie disease-modifying effects of natural polyphenols, with a focus on nuclear factor erythroid 2-related factor 2 activators for AD treatment. Lastly, we discussed challenges in the preclinical to clinical translation of natural polyphenols. In conclusion, there is evidence that natural polyphenols can be therapeutically useful in AD through their multifaceted mechanism of action. However, more clinical studies are needed to confirm these effects.
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Affiliation(s)
- Chengu Niu
- Internal Medicine Residency Program, Rochester General Hospital, Rochester, NY, 14621, USA
| | - Miaoxian Dong
- The Institute of Medicine, Qiqihar Medical University, Qiqihar, 161006, China
| | - Yingcai Niu
- The Institute of Medicine, Qiqihar Medical University, Qiqihar, 161006, China.
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3
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Wang T, Lv L, Feng H, Gu W. Unlocking the Potential: Quercetin and Its Natural Derivatives as Promising Therapeutics for Sepsis. Biomedicines 2024; 12:444. [PMID: 38398046 PMCID: PMC10887054 DOI: 10.3390/biomedicines12020444] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Revised: 02/06/2024] [Accepted: 02/13/2024] [Indexed: 02/25/2024] Open
Abstract
Sepsis is a syndrome of organ dysfunction caused by an uncontrolled inflammatory response, which can seriously endanger life. Currently, there is still a shortage of specific therapeutic drugs. Quercetin and its natural derivatives have received a lot of attention recently for their potential in treating sepsis. Here, we provide a comprehensive summary of the recent research progress on quercetin and its derivatives, with a focus on their specific mechanisms of antioxidation and anti-inflammation. To obtain the necessary information, we conducted a search in the PubMed, Web of Science, EBSCO, and Cochrane library databases using the keywords sepsis, anti-inflammatory, antioxidant, anti-infection, quercetin, and its natural derivatives to identify relevant research from 6315 articles published in the last five years. At present, quercetin and its 11 derivatives have been intensively studied. They primarily exert their antioxidation and anti-inflammation effects through the PI3K/AKT/NF-κB, Nrf2/ARE, and MAPK pathways. The feasibility of these compounds in experimental models and clinical application were also discussed. In conclusion, quercetin and its natural derivatives have good application potential in the treatment of sepsis.
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Affiliation(s)
- Tian Wang
- Center of Smart Laboratory and Molecular Medicine, School of Medicine, Chongqing University, Chongqing 400030, China; (T.W.); (L.L.)
| | - Linxi Lv
- Center of Smart Laboratory and Molecular Medicine, School of Medicine, Chongqing University, Chongqing 400030, China; (T.W.); (L.L.)
| | - Hui Feng
- Center of Smart Laboratory and Molecular Medicine, School of Medicine, Chongqing University, Chongqing 400030, China; (T.W.); (L.L.)
| | - Wei Gu
- Center of Smart Laboratory and Molecular Medicine, School of Medicine, Chongqing University, Chongqing 400030, China; (T.W.); (L.L.)
- College of Bioengineering, Chongqing University, Chongqing 400044, China
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4
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Huo Y, Zhao C, Wang Y, Wang S, Mu T, Du W. Roles of Apigenin and Nepetin in the Assembly Behavior and Cytotoxicity of Prion Neuropeptide PrP106-126. ACS Chem Neurosci 2024; 15:245-257. [PMID: 38133816 DOI: 10.1021/acschemneuro.3c00417] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2023] Open
Abstract
Development of potential inhibitors to prevent prion protein (PrP) fibrillation is a therapeutic strategy for prion diseases. The prion neuropeptide PrP106-126, a research model of abnormal PrP (PrPSc), presents similar physicochemical and biochemical characters to PrPSc, which is also a target of potential inhibitors against prion deposition. Many flavones have antioxidant, anti-inflammatory, and antibacterial properties, and they are applied in treating prion disorder and other amyloidosis as well. However, the inhibition mechanism of flavones on PrP106-126 fibrillation is still unclear. In the current work, apigenin and nepetin were used to suppress the aggregation of PrP106-126 and to alleviate the peptide-induced cytotoxicity. The results showed that apigenin and nepetin impeded the fibril formation of PrP106-126 and depolymerized the preformed fibrils. They were bound to PrP106-126 predominantly by hydrophobic and hydrogen bonding interactions. In addition, both flavones upregulated cell viability and decreased membrane leakage through reducing peptide oligomerization. The differences in inhibition and cell protection between the two small molecules were presumably attributed to the substitution of hydroxyl and methoxy groups in nepetin, which demonstrated the significant structure-function relationship of flavones with prion neuropeptide and the prospect of flavonoids as drug candidates against prion diseases.
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Affiliation(s)
- Yan Huo
- Department of Chemistry, Renmin University of China, Beijing 100872, China
| | - Cong Zhao
- Department of Chemistry, Renmin University of China, Beijing 100872, China
| | - Yanan Wang
- Department of Chemistry, Renmin University of China, Beijing 100872, China
| | - Shao Wang
- Department of Chemistry, Renmin University of China, Beijing 100872, China
| | - Tiancheng Mu
- Department of Chemistry, Renmin University of China, Beijing 100872, China
| | - Weihong Du
- Department of Chemistry, Renmin University of China, Beijing 100872, China
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5
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El Menyiy N, Aboulaghras S, Bakrim S, Moubachir R, Taha D, Khalid A, Abdalla AN, Algarni AS, Hermansyah A, Ming LC, Rusu ME, Bouyahya A. Genkwanin: An emerging natural compound with multifaceted pharmacological effects. Biomed Pharmacother 2023; 165:115159. [PMID: 37481929 DOI: 10.1016/j.biopha.2023.115159] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Revised: 07/10/2023] [Accepted: 07/11/2023] [Indexed: 07/25/2023] Open
Abstract
Plant bioactive molecules could play key preventive and therapeutic roles in chronological aging and the pathogenesis of many chronic diseases, often accompanied by increased oxidative stress and low-grade inflammation. Dietary antioxidants, including genkwanin, could decrease oxidative stress and the expression of pro-inflammatory cytokines or pathways. The present study is the first comprehensive review of genkwanin, a methoxyflavone found in several plant species. Indeed, natural sources, and pharmacokinetics of genkwanin, the biological properties were discussed and highlighted in detail. This review analyzed and considered all original studies related to identification, isolation, quantification, investigation of the biological and pharmacological properties of genkwanin. We consulted all published papers in peer-reviewed journals in the English language from the inception of each database to 12 May 2023. Different phytochemical demonstrated that genkwanin is a non-glycosylated flavone found and isolated from several medicinal plants such as Genkwa Flos, Rosmarinus officinalis, Salvia officinalis, and Leonurus sibiricus. In vitro and in vivo biological and pharmacological investigations showed that Genkwanin exhibits remarkable antioxidant and anti-inflammatory activities, genkwanin, via activation of glucokinase, has shown antihyperglycemic activity with a potential role against metabolic syndrome and diabetes. Additionally, it revealed cardioprotective and neuroprotective properties, thus reducing the risk of cardiovascular diseases and assisting against neurodegenerative diseases. Furthermore, genkwanin showed other biological properties like antitumor capability, antibacterial, antiviral, and dermato-protective effects. The involved mechanisms include sub-cellular, cellular and molecular actions at different levels such as inducing apoptosis and inhibiting the growth and proliferation of cancer cells. Despite the findings from preclinical studies that have demonstrated the effects of genkwanin and its diverse mechanisms of action, additional research is required to comprehensively explore its therapeutic potential. Primarily, extensive studies should be carried out to enhance our understanding of the molecule's pharmacodynamic actions and pharmacokinetic pathways. Moreover, toxicological and clinical investigations should be undertaken to assess the safety and clinical efficacy of genkwanin. These forthcoming studies are of utmost importance in fully unlocking the potential of this molecule in the realm of therapeutic applications.
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Affiliation(s)
- Naoual El Menyiy
- Laboratory of Pharmacology, National Agency of Medicinal and Aromatic Plants, Taounate 34025, Morocco.
| | - Sara Aboulaghras
- Laboratory of Human Pathologies Biology, Faculty of Sciences, Mohammed V University in Rabat, Rabat 10106, Morocco.
| | - Saad Bakrim
- Geo-Bio-Environment Engineering and Innovation Laboratory, Molecular Engineering, Biotechnology and Innovation Team, Polydisciplinary Faculty of Taroudant, Ibn Zohr University, Agadir 80000, Morocco.
| | - Rania Moubachir
- Bioactives and Environmental Health Laboratory, Faculty of Sciences, Moulay Ismail University, Meknes, Morocco.
| | - Doaue Taha
- Molecular Modeling, Materials, Nanomaterials, Water and Environment Laboratory, CERNE2D, Department of Chemistry, Faculty of Sciences, Mohammed V University in Rabat, Rabat 10106, Morocco.
| | - Asaad Khalid
- Substance Abuse and Toxicology Research Center, Jazan University, P.O. Box: 114, Jazan 45142, Saudi Arabia.
| | - Ashraf N Abdalla
- Department of Pharmacology and Toxicology, College of Pharmacy, Umm Al-Qura University, Makkah 21955, Saudi Arabia.
| | - Alanood S Algarni
- Department of Pharmacology and Toxicology, College of Pharmacy, Umm Al-Qura University, Makkah 21955, Saudi Arabia.
| | - Andi Hermansyah
- Department of Pharmacy Practice, Faculty of Pharmacy, Universitas Airlangga, Surabaya 60115, Indonesia.
| | - Long Chiau Ming
- Department of Pharmacy Practice, Faculty of Pharmacy, Universitas Airlangga, Surabaya 60115, Indonesia; School of Medical and Life Sciences, Sunway University, Sunway City, Malaysia; PAPRSB Institute of Health Sciences, Universiti Brunei Darussalam, Gadong, Brunei Darussalam.
| | - Marius Emil Rusu
- Department of Pharmaceutical Technology and Biopharmaceutics, Faculty of Pharmacy, Iuliu Hatieganu University of Medicine and Pharmacy, 8 Victor Babes, 400012 Cluj-Napoca, Romania.
| | - Abdelhakim Bouyahya
- Laboratory of Human Pathologies Biology, Faculty of Sciences, Mohammed V University in Rabat, Rabat 10106, Morocco.
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Huo Y, Huang X, Wang Y, Zhao C, Zheng T, Du W. Inhibitory effects of sesquiterpene lactones on the aggregation and cytotoxicity of prion neuropeptide. Biochimie 2023; 211:131-140. [PMID: 36963557 DOI: 10.1016/j.biochi.2023.03.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Revised: 03/12/2023] [Accepted: 03/21/2023] [Indexed: 03/26/2023]
Abstract
The misfolding and conformational transformation of prion protein (PrP) are crucial to the progression of prion diseases. Screening for available natural inhibitors against prion proteins can contribute to the rational design and development of new anti-prion drugs and therapeutic strategies. The prion neuropeptide, PrP106-126 is commonly used as a model peptide of the abnormal PrPSc, and a number of potential inhibitors were explored against the amyloid fibril formation of PrP106-126. The well-known sesquiterpene lactone, artemisinin, shows diverse biological functions in anti-malarial, anti-cancer and lowering glucose. However, its inhibitory effect on PrP106-126 fibrillation is unclear. In this work, we selected two sesquiterpene lactones, artemisinin (1) and artesunate (2), to explore their roles in PrP106-126 aggregation by a series of physicochemical and biochemical methods. The results demonstrated that 1 and 2 could effectively impede the formation of amyloid fibrils and remodel the preformed fibrils. The binding of the small molecules to PrP106-126 was dominated by electrostatic, hydrophobic and hydrogen bonding interactions. In addition, both compounds exhibited neuroprotective effects by reducing peptide oligomerization. 2 showed better inhibition and regulation on peptide aggregation and cellular viability than 1 due to its specific succinate modification. Our study provides the information of sesquiterpene lactones to prevent PrP fibril formation and other related amyloidosis.
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Affiliation(s)
- Yan Huo
- Department of Chemistry, Renmin University of China, Beijing, 100872, China
| | - Xiangyi Huang
- Department of Chemistry, Renmin University of China, Beijing, 100872, China
| | - Yanan Wang
- Department of Chemistry, Renmin University of China, Beijing, 100872, China
| | - Cong Zhao
- Department of Chemistry, Renmin University of China, Beijing, 100872, China
| | - Ting Zheng
- Department of Chemistry, Renmin University of China, Beijing, 100872, China
| | - Weihong Du
- Department of Chemistry, Renmin University of China, Beijing, 100872, China.
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7
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Roy R, Paul S. Illustrating the Effect of Small Molecules Derived from Natural Resources on Amyloid Peptides. J Phys Chem B 2023; 127:600-615. [PMID: 36638829 DOI: 10.1021/acs.jpcb.2c07607] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
The onset of amyloidogenic diseases is associated with the misfolding and aggregation of proteins. Despite extensive research, no effective therapeutics are yet available to treat these chronic degenerative diseases. Targeting the aggregation of disease-specific proteins is regarded as a promising new approach to treat these diseases. In the past few years, rapid progress in this field has been made in vitro, in vivo, and in silico to generate potential drug candidates, ranging from small molecules to polymers to nanoparticles. Small molecular probes, mostly those derived from natural sources, have been of particular interest among amyloid inhibitors. Here, we summarize some of the most important natural small molecular probes which can inhibit the aggregation of Aβ, hIAPP, and α-syn peptides and discuss how their binding efficacy and preference for the peptides vary with their structure and conformation. This provides a comprehensive idea of the crucial factors which should be incorporated into the future design of novel drug candidates useful for the treatment of amyloid diseases.
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Affiliation(s)
- Rituparna Roy
- Department of Chemistry, Indian Institute of Technology, Guwahati Assam-781039, India
| | - Sandip Paul
- Department of Chemistry, Indian Institute of Technology, Guwahati Assam-781039, India
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8
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Wang Y, Zheng T, Huo Y, Du W. Exploration of Isoquinoline Alkaloids as Potential Inhibitors against Human Islet Amyloid Polypeptide. ACS Chem Neurosci 2022; 13:2164-2175. [PMID: 35797238 DOI: 10.1021/acschemneuro.2c00206] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Type-2 diabetes mellitus (T2DM) is one of the most concerning public health problems because of its high incidence, multiple complications, and difficult treatment. Human islet amyloid polypeptide (hIAPP) is closely linked to T2DM because its abnormal self-assembly causes membrane damage and cell dysfunction. The development of potential inhibitors to prevent hIAPP fibrillation is a promising strategy for the intervention and treatment of diabetes. Natural isoquinoline alkaloids are used as effective medication that targets different biomolecules. Although studies explored the efficacy of berberine, jatrorrhizine, and chelerythrine in diabetes, the underlying mechanism remains unclear. Herein, three isoquinoline alkaloids are selected to reveal their roles in hIAPP aggregation, disaggregation, and cell protection. All three compounds displayed good inhibitory effects on peptide fibrillation, scattered the preformed fibrils into small oligomers and most monomers, and upregulated cell viability by reducing hIAPP oligomerization. Moreover, combined biophysical analyses indicated that the compounds affected the β-sheet structure and hydrophobicity of polypeptides significantly, and the benzo[c]phenanthridine structure of chelerythrine was beneficial to the inhibition of hIAPP aggregation and their hydrophobic interaction, compared with that of berberine and jatrorrhizine. Our work elaborated the effects of these alkaloids on hIAPP fibrillation and reveals a possible mechanism for these compounds against T2DM.
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Affiliation(s)
- Yanan Wang
- Department of Chemistry, Renmin University of China, Beijing 100872, China
| | - Ting Zheng
- Department of Chemistry, Renmin University of China, Beijing 100872, China
| | - Yan Huo
- Department of Chemistry, Renmin University of China, Beijing 100872, China
| | - Weihong Du
- Department of Chemistry, Renmin University of China, Beijing 100872, China
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Xu J, Wang Y, Zheng T, Huo Y, Du W. Biflavones inhibit the fibrillation and cytotoxicity of human islet amyloid polypeptide. J Mater Chem B 2022; 10:4650-4661. [DOI: 10.1039/d2tb00230b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Biflavones are a kind of natural compounds with a variety of biological activities, which have the effects of reversing diabetes and neurodegenerative diseases. Human islet amyloid polypeptide (hIAPP) is closely...
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10
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Li T, Ling Z, Xie K, Wang Y, Miao Z, Ji X, Li J, Hou W, Tang Q, Yuan X, Li N, Li C, Ding H. The COL-4A1 polypeptide destroy endothelial cells through the TGF-β/PI3K/AKT pathway. Sci Rep 2021; 11:15761. [PMID: 34344927 PMCID: PMC8333066 DOI: 10.1038/s41598-021-94801-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Accepted: 07/13/2021] [Indexed: 12/25/2022] Open
Abstract
Preeclampsia (PE) is commonly considered as a placental disorder in pregnancy. Until now, the etiology and pathological mechanism of PE have remained ambiguous. Although PE can lead to a variety of maternal and infant complications, there are still no effective treatments. This study aimed to explore the correlation between the novel polypeptide COL-4A1 and PE, and to identify the underlying mechanism by which this polypeptide may function and to explore new therapeutic targets for PE. A rat model of PE was established and used to verify the function of the polypeptide COL-4A1 in vivo. Additionally, human umbilical vascular endothelial cells (HUVECs) were cultured with or without COL-4A1 and TNF-α (20 ng/ml). Cell Counting Kit-8 (CCK-8), wound-healing, Transwell and tube formation assays were used to evaluate cell proliferation, migration and angiopoiesis. RNA sequencing and mass spectrometry were conducted to explore the underlying downstream mechanism of COL-4A1. In vivo, COL-4A1 increased blood pressure and elevated the risk of fetal growth restriction (FGR) which was induced by lipopolysaccharide (LPS) in the rat model. In vitro, COL-4A1 significantly inhibited the proliferation and migration of HUVECs. After culture with COL-4A1, compared to control group the adhesive ability and level of reactive oxygen species (ROS) were enhanced and tube formation ability was decreased. Furthermore, Western blotting (WB) and pull-down assays were conducted to explore the underlying mechanism by which COL-4A1 functions, and the TGF-β/PI3K/AKT pathway was identified as the potential pathway involved in its effects. In summary, these results revealed that the polypeptide COL-4A1 caused PE-like symptoms in cells and a rat model. Through the TGF-β/PI3K/AKT pathway, COL-4A1 interferes with the pathogenesis of PE. Thus COL-4A1 is expected to become a potential target of PE, providing a basis for exploring the treatment of PE.
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Affiliation(s)
- Ting Li
- Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, The Affiliated Obstetrics and Gynecology Hospital of Nanjing Medical University, Nanjing, China
| | - Zhonghui Ling
- Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, The Affiliated Obstetrics and Gynecology Hospital of Nanjing Medical University, Nanjing, China
| | - Kaipeng Xie
- Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, The Affiliated Obstetrics and Gynecology Hospital of Nanjing Medical University, Nanjing, China
| | - Yixiao Wang
- Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, The Affiliated Obstetrics and Gynecology Hospital of Nanjing Medical University, Nanjing, China
| | - Zhijing Miao
- Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, The Affiliated Obstetrics and Gynecology Hospital of Nanjing Medical University, Nanjing, China
| | - Xiaohong Ji
- Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, The Affiliated Obstetrics and Gynecology Hospital of Nanjing Medical University, Nanjing, China
| | - Jingyun Li
- Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, The Affiliated Obstetrics and Gynecology Hospital of Nanjing Medical University, Nanjing, China
| | - Wenwen Hou
- Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, The Affiliated Obstetrics and Gynecology Hospital of Nanjing Medical University, Nanjing, China
| | - Qiuqin Tang
- Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, The Affiliated Obstetrics and Gynecology Hospital of Nanjing Medical University, Nanjing, China
| | - Xiaojie Yuan
- Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, The Affiliated Obstetrics and Gynecology Hospital of Nanjing Medical University, Nanjing, China
| | - Nan Li
- Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, The Affiliated Obstetrics and Gynecology Hospital of Nanjing Medical University, Nanjing, China
| | - Chanjuan Li
- Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, The Affiliated Obstetrics and Gynecology Hospital of Nanjing Medical University, Nanjing, China.
| | - Hongjuan Ding
- Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, The Affiliated Obstetrics and Gynecology Hospital of Nanjing Medical University, Nanjing, China.
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11
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Xu J, Zheng T, Huang X, Wang Y, Yin G, Du W. Procyanidine resists the fibril formation of human islet amyloid polypeptide. Int J Biol Macromol 2021; 183:1067-1078. [PMID: 33965498 DOI: 10.1016/j.ijbiomac.2021.05.030] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Revised: 04/19/2021] [Accepted: 05/03/2021] [Indexed: 12/12/2022]
Abstract
Human islet amyloid polypeptide (hIAPP) is widely studied due to its close correlation with the pathogenic mechanism of type II diabetes mellitus (T2DM). Bioflavonoids have been used in the neurodegeneration and diabetes studies. However, the structure-activity relationship remains unclear in many of these compounds. In this work, we performed diverse biophysical and biochemical methods to explore the inhibition of procyanidine on hIAPP and compared with that on amyloid-β (Aβ) protein which is linked to Alzheimer's disease (AD). The procyanidine effectively inhibited the aggregation of hIAPP and Aβ through hydrophobic and hydrogen bonding interactions, it dissolved the aged fibrils into nanoscale particles. The compound also ameliorated the cytotoxicity and the membrane leakage by reducing the peptide oligomerization. The procyanidine showed better binding affinity and inhibitory effects on peptide aggregation and upregulated the cell viability to hIAPP than to Aβ, which could be a prospective inhibitor against hIAPP. This work also offered a possible strategy for T2DM and AD treatments.
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Affiliation(s)
- Jufei Xu
- Department of Chemistry, Renmin University of China, Beijing 100872, China
| | - Ting Zheng
- Department of Chemistry, Renmin University of China, Beijing 100872, China
| | - Xiangyi Huang
- Department of Chemistry, Renmin University of China, Beijing 100872, China
| | - Yanan Wang
- Department of Chemistry, Renmin University of China, Beijing 100872, China
| | - Guowei Yin
- The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen 518107, China.
| | - Weihong Du
- Department of Chemistry, Renmin University of China, Beijing 100872, China.
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