1
|
Wang X, Yu Z, Dong F, Li J, Niu P, Ta Q, Kan J, Ma C, Han M, Yu J, Zhao D, Li J. Clarifying the mechanism of apigenin against blood-brain barrier disruption in ischemic stroke using systems pharmacology. Mol Divers 2024; 28:609-630. [PMID: 36949297 DOI: 10.1007/s11030-023-10607-9] [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: 09/05/2022] [Accepted: 01/12/2023] [Indexed: 03/24/2023]
Abstract
Currently, recombinant tissue plasminogen activator (rtPA) is an effective therapy for ischemic stroke (IS). However, blood-brain barrier (BBB) disruption is a serious side effect of rtPA therapy and may lead to patients' death. The natural polyphenol apigenin has a good therapeutic effect on IS. Apigenin has potential BBB protection, but the mechanism by which it protects the BBB integrity is not clear. In this study, we used network pharmacology, bioinformatics, molecular docking and molecular dynamics simulation to reveal the mechanisms by which apigenin protects the BBB. Among the 146 targets of apigenin for the treatment of IS, 20 proteins were identified as core targets (e.g., MMP-9, TLR4, STAT3). Apigenin protects BBB integrity by inhibiting the activity of MMPs through anti-inflammation and anti-oxidative stress. These mechanisms included JAK/STAT, the toll-like receptor signaling pathway, and Nitrogen metabolism signaling pathways. The findings of this study contribute to a more comprehensive understanding of the mechanism of apigenin in the treatment of BBB disruption and provide ideas for the development of drugs to treat IS.
Collapse
Affiliation(s)
- Xu Wang
- College of Traditional Chinese Medicine, Changchun University of Chinese Medicine, Changchun, 130117, Jilin, China
- School of Public Health, Jilin University, Changchun, 130021, Jilin, China
| | - ZiQiao Yu
- College of Traditional Chinese Medicine, Changchun University of Chinese Medicine, Changchun, 130117, Jilin, China
| | - Fuxiang Dong
- College of Traditional Chinese Medicine, Changchun University of Chinese Medicine, Changchun, 130117, Jilin, China
| | - Jinjian Li
- College of Traditional Chinese Medicine, Changchun University of Chinese Medicine, Changchun, 130117, Jilin, China
| | - Ping Niu
- College of Traditional Chinese Medicine, Changchun University of Chinese Medicine, Changchun, 130117, Jilin, China
| | - Qiyi Ta
- College of Traditional Chinese Medicine, Changchun University of Chinese Medicine, Changchun, 130117, Jilin, China
| | - JunMing Kan
- College of Traditional Chinese Medicine, Changchun University of Chinese Medicine, Changchun, 130117, Jilin, China
| | - Chunyu Ma
- College of Traditional Chinese Medicine, Changchun University of Chinese Medicine, Changchun, 130117, Jilin, China
| | - Moxuan Han
- College of Traditional Chinese Medicine, Changchun University of Chinese Medicine, Changchun, 130117, Jilin, China
| | - Junchao Yu
- College of Traditional Chinese Medicine, Changchun University of Chinese Medicine, Changchun, 130117, Jilin, China
| | - Dexi Zhao
- College of Traditional Chinese Medicine, Changchun University of Chinese Medicine, Changchun, 130117, Jilin, China.
| | - Jinhua Li
- School of Public Health, Jilin University, Changchun, 130021, Jilin, China.
| |
Collapse
|
2
|
Li K, Wu L, Jiang J. Apigenin accelerates wound healing in diabetic mice by promoting macrophage M2-type polarization via increasing miR-21 expression. Mol Cell Biochem 2024:10.1007/s11010-023-04885-y. [PMID: 38261238 DOI: 10.1007/s11010-023-04885-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Accepted: 10/19/2023] [Indexed: 01/24/2024]
Abstract
The alteration of inflammatory phenotype by macrophage polarization plays an important role in diabetic wound repair. Apigenin has been reported to be anti-inflammatory and promote tissue repair; however, whether it regulates macrophage polarization to participate in diabetic wound repair remains to be investigated. We found that apigenin promoted miR-21 expression in LPS-stimulated RAW264.7 cells, inhibited cellular M1-type factor TNF-α and IL-1β secretion and increased M2-type factor IL-10 and TGF-β secretion, and accelerated macrophage conversion from M1 type to M2 type, whereas this protective effect of apigenin was counteracted by a miR-21 inhibitor. Moreover, we established a macrophage-HUVECs cell in vitro co-culture system and found that apigenin accelerated the migration, proliferation, and VEGF secretion of HUVECs by promoting macrophage miR-21 expression. Further, mechanistic studies revealed that this was mediated by the TLR4/Myd88/NF-κB axis. In in vivo study, diabetic mice had significantly delayed wound healing compared to non-diabetic mice, accelerated wound healing in apigenin-treated diabetic mice, and decreased M1-type macrophages and increased M2-type macrophages in wound tissues.
Collapse
Affiliation(s)
- Ke Li
- Jiangsu Engineering Research Center for Tumor Immunotherapy, The Third Affiliated Hospital of Soochow University, Changzhou, 213003, Jiangsu, China
- Department of Burn and Plastic Surgery, The First Affiliated Hospital of Soochow University, Suzhou, 215006, Jiangsu, China
| | - Lijun Wu
- Department of Plastic and Aesthetic Surgery, The Second Affiliated Hospital of Soochow University, Suzhou, 215006, Jiangsu, China
| | - Jingting Jiang
- Jiangsu Engineering Research Center for Tumor Immunotherapy, The Third Affiliated Hospital of Soochow University, Changzhou, 213003, Jiangsu, China.
| |
Collapse
|
3
|
Zitouni-Nourine SH, Belyagoubi-Benhammou N, El-Houaria Zitouni-Haouar F, Douahi O, Chenafi F, Fetati H, Chabane Sari S, Benmahieddine A, Zaoui C, Mekaouche FZN, Atik Bekkara F, Kambouche N, Gismondi A, Toumi H. Echinops spinosissimus Turra Root Methanolic Extract: Characterization of the Bioactive Components and Relative Wound Healing, Antimicrobial and Antioxidant Properties. PLANTS (BASEL, SWITZERLAND) 2022; 11:3440. [PMID: 36559550 PMCID: PMC9784825 DOI: 10.3390/plants11243440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 11/25/2022] [Accepted: 12/05/2022] [Indexed: 06/17/2023]
Abstract
Echinops spinosissimus Turra subsp. bovei (Asteraceae) is a medicinal plant in western Algeria. Traditionally, roots and inflorescences are employed as hypertensive agents and in the treatment of hemorrhoids. The current study evaluates the chemical composition, antioxidant, antimicrobial, and wound-healing properties of the root methanolic extract from E. spinosissimus subsp. bovei. The content of total phenolics, flavonoids, and tannins was determined. In addition, the phenolic profile was typified. The studied plant extract resulted in being primarily composed of Apigenin, Kaempferol, and their derivatives. The total phenolic content was equal to 95.31 ± 2.90 mg GAE/g DW, while the number of flavonoids and condensed tannins was 16.01 ± 0.16 mg CE/g DW and 8.30 ± 0.65 mg CE/g DW, respectively. The methanolic extract was found to exhibit antioxidant activity towards the DPPH radical, with an IC50 of 7.99 ± 0.28 mg/mL and a TAC of 30.30 ± 0.54 mg AAE/g DW, as well as an antibacterial effect, especially against P. aeruginosa. No significant wound-healing property was observed, even though the histopathological observations showed enhanced wound-healing quality. According to our evidence, E. spinosissimus could represent a source of phytochemicals with potential beneficial effects for human health in terms of antioxidant and antibiotic properties, although further investigations on this species are needed.
Collapse
Affiliation(s)
- Saida Hanane Zitouni-Nourine
- Pharmaceutical Development Research Laboratory, Department of Pharmacy, Faculty of Medicine, Oran 1 Ahmed Ben Bella University, Oran 31000, Algeria
| | - Nabila Belyagoubi-Benhammou
- Natural Products Laboratory, Department of Biology, Faculty of Natural and Life Sciences, Earth and Universe, University Abou-Bekr Belkaïd, Tlemcen 13000, Algeria
| | - Fatima El-Houaria Zitouni-Haouar
- Laboratory of Biology of Microorganisms and Biotechnology, Department of Biotechnology, Faculty of Natural and Life Sciences, Oran 1 Ahmed Ben Bella University, Oran 31000, Algeria
| | - Omar Douahi
- Microbiology Laboratory, Department of Pharmacy, Faculty of Medicine, University Abou-Bekr Belkaïd, Tlemcen 13000, Algeria
| | - Faouzia Chenafi
- Department of Sociology, Faculty of Social Sciences, University Oran 2, Oran 31000, Algeria
| | - Habiba Fetati
- Pharmaceutical Development Research Laboratory, Department of Pharmacy, Faculty of Medicine, Oran 1 Ahmed Ben Bella University, Oran 31000, Algeria
| | - Siham Chabane Sari
- Anatompathological Department, Faculty of Medicine, Oran 1 Ahmed Ben Bella University, Oran 31000, Algeria
| | - Assia Benmahieddine
- Natural Products Laboratory, Department of Biology, Faculty of Natural and Life Sciences, Earth and Universe, University Abou-Bekr Belkaïd, Tlemcen 13000, Algeria
| | - Chahinez Zaoui
- Developmental and Differentiation Biology Laboratory, Faculty of Natural and Life Sciences, Oran 1 Ahmed Ben Bella University, Oran 31000, Algeria
| | - Fatima Zohra Nadjet Mekaouche
- Pharmaceutical Development Research Laboratory, Department of Pharmacy, Faculty of Medicine, Oran 1 Ahmed Ben Bella University, Oran 31000, Algeria
| | - Fawzia Atik Bekkara
- Natural Products Laboratory, Department of Biology, Faculty of Natural and Life Sciences, Earth and Universe, University Abou-Bekr Belkaïd, Tlemcen 13000, Algeria
| | - Nadia Kambouche
- Organic Synthesis Laboratory, Department of Chemistry, Faculty of Exact and Applied Sciences, Oran 1 Ahmed Ben Bella University, Oran 31000, Algeria
| | - Angelo Gismondi
- Laboratory of General Botany, Department of Biology, University of Rome Tor Vergata, 00133 Rome, Italy
| | - Houari Toumi
- Pharmaceutical Development Research Laboratory, Department of Pharmacy, Faculty of Medicine, Oran 1 Ahmed Ben Bella University, Oran 31000, Algeria
| |
Collapse
|
4
|
Ngernyuang N, Wongwattanakul M, Charusirisawad W, Shao R, Limpaiboon T. Green synthesized apigenin conjugated gold nanoparticles inhibit cholangiocarcinoma cell activity and endothelial cell angiogenesis in vitro. Heliyon 2022; 8:e12028. [PMID: 36506385 PMCID: PMC9732323 DOI: 10.1016/j.heliyon.2022.e12028] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2022] [Revised: 11/05/2022] [Accepted: 11/25/2022] [Indexed: 12/02/2022] Open
Abstract
Cholangiocarcinoma (CCA) is a rare malignancy of the biliary tract with extremely poor clinical outcomes due to a lack of effective therapies to improve disease management. The emerging green synthesis of gold nanoparticles (AuNPs) has extensively provided their use in biomedical applications. In this study, we developed AuNPs via reducing gold salts with apigenin (4',5,7-trihydroxyflavone). The synthesized apigenin-conjugated AuNPs (api-AuNPs) were physicochemically characterized by various techniques before evaluation their biological and functional inhibition in a CCA cell line, KKU-M055. The mean size of api-AuNPs was 90.34 ± 22.82 nm with zeta potential of -36 ± 0.55. The half-maximal inhibitory concentration (IC50, 0.8 mg/mL) of api-AuNPs on cell proliferation of KKU-M055 was 1.9-fold less than that of an immortalized human cholangiocyte cell line, MMNK1 (IC50, 1.5 mg/mL). Moreover, api-AuNPs induced cell apoptosis via the up-regulation of Bax, Bid, and Caspase 3, and down-regulation of Bcl2, leading to elevated caspase 3/7, 8, 9 activities and reactive oxygen species (ROS) production. The api-AuNPs significantly inhibited the migration of KKU-M055 cells and suppressed the proliferation, migration, and in vitro tube formation of vascular endothelial cells. Collectively, our findings indicate the dual abilities of api-AuNPs that potentially inhibit cancer cell growth and motility as well as endothelial cell-mediated angiogenesis, which may offer a novel therapeutic avenue to treat CCA patients effectively.
Collapse
Affiliation(s)
- Nipaporn Ngernyuang
- Chulabhorn International College of Medicine, Thammasat University, Pathum Thani 12120, Thailand
| | - Molin Wongwattanakul
- Centre for Research and Development of Medical Diagnostic Laboratories, Faculty of Associated Medical Science, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Wannit Charusirisawad
- Chulabhorn International College of Medicine, Thammasat University, Pathum Thani 12120, Thailand
| | - Rong Shao
- Development of Pharmacology, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Temduang Limpaiboon
- Centre for Research and Development of Medical Diagnostic Laboratories, Faculty of Associated Medical Science, Khon Kaen University, Khon Kaen 40002, Thailand,Corresponding author.
| |
Collapse
|
5
|
Parrella E, Gussago C, Porrini V, Benarese M, Pizzi M. From Preclinical Stroke Models to Humans: Polyphenols in the Prevention and Treatment of Stroke. Nutrients 2020; 13:nu13010085. [PMID: 33383852 PMCID: PMC7823436 DOI: 10.3390/nu13010085] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2020] [Accepted: 12/24/2020] [Indexed: 02/07/2023] Open
Abstract
Polyphenols are an important family of molecules of vegetal origin present in many medicinal and edible plants, which represent important alimentary sources in the human diet. Polyphenols are known for their beneficial health effects and have been investigated for their potential protective role against various pathologies, including cancer, brain dysfunctions, cardiovascular diseases and stroke. The prevention of stroke promoted by polyphenols relies mainly on their effect on cardio- and cerebrovascular systems. However, a growing body of evidence from preclinical models of stroke points out a neuroprotective role of these molecules. Notably, in many preclinical studies, the polyphenolic compounds were effective also when administered after the stroke onset, suggesting their possible use in promoting recovery of patients suffering from stroke. Here, we review the effects of the major polyphenols in cellular and in vivo models of both ischemic and hemorrhagic stroke in immature and adult brains. The results from human studies are also reported.
Collapse
|
6
|
TLR4/AP-1-Targeted Anti-Inflammatory Intervention Attenuates Insulin Sensitivity and Liver Steatosis. Mediators Inflamm 2020; 2020:2960517. [PMID: 33013197 PMCID: PMC7519185 DOI: 10.1155/2020/2960517] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Revised: 08/15/2020] [Accepted: 09/04/2020] [Indexed: 01/17/2023] Open
Abstract
Insulin resistance has been shown to be the common pathogenesis of many metabolic diseases. Metainflammation is one of the important characteristics of insulin resistance. Macrophage polarization mediates the production and development of metainflammation. Toll-like receptor 4 (TLR4) mediates macrophage activity and is probably the intersection of immunity and metabolism, but the detailed mechanism is probably not fully understood. Activated protein 1 (AP1) signaling pathway is very important in macrophage activation-mediated inflammation. However, it is unclear whether AP1 signaling pathway mediates metabolic inflammation in the liver. We aimed to investigate the effects of macrophage TLR4-AP1 signaling pathway on hepatocyte metabolic inflammation, insulin sensitivity, and lipid deposition, as well as to explore the potential of TLR4-AP1 as new intervention targets of insulin resistance and liver steatosis. TLR4 and AP1 were silenced in the RAW264.7 cells by lentiviral siRNA transfection. In vivo transduction of lentivirus was administered in mice fed with high-fat diet. Insulin sensitivity and inflammation were evaluated in the treated cells or animals. Our results indicated that TLR4/AP-1 siRNA transfection alleviated high-fat diet-induced systemic and hepatic inflammation, obesity, and insulin resistance in mice. Additionally, TLR4/AP-1 siRNA transfection mitigated palmitic acid- (PA-) induced inflammation in RAW264.7 cells and metabolic abnormalities in cocultured AML hepatocytes. Herein, we propose that TLR4-AP1 signaling pathway activation plays a crucial role in high fat- or PA-induced metabolic inflammation and insulin resistance in hepatocytes. Intervention of the TLR4 expression regulates macrophage polarization and metabolic inflammation and further alleviates insulin resistance and lipid deposition in hepatocytes.
Collapse
|
7
|
Houshiheisan promotes angiogenesis via HIF-1α/VEGF and SDF-1/CXCR4 pathways: in vivo and in vitro. Biosci Rep 2020; 39:220749. [PMID: 31652450 PMCID: PMC6822506 DOI: 10.1042/bsr20191006] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Revised: 09/17/2019] [Accepted: 09/25/2019] [Indexed: 12/16/2022] Open
Abstract
Rationale: Houshiheisan (HSHS), a classic prescription in traditional Chinese medicine (TCM), has remarkable efficacy in the treatment of ischemic stroke. Objective: To investigate the pro-angiogenic effect and molecular mechanism of HSHS for stroke recovery. Methods and results: The rat permanent middle cerebral artery occlusion (pMCAO) model was constructed by suture method, HSHS (5.25 or 10.5 g/kg) and Ginaton (28 mg/kg) treatment was intragastrically administrated at 6 h after modeling which remained for 7 consecutive days. Pathological evaluation conducted by Hematoxylin–Eosin (HE) staining and the results showed that HSHS alleviated blood vessel edema, reduced the damage to blood vessels and neurons in the ischemic areas. Immunostaining, quantitative real-time fluorescence PCR results showed that HSHS up-regulated pro-angiogenic factors including platelet endothelial cell adhesion molecule-1 (cluster of differentiation 31 (CD31)), vascular endothelial growth factor (VEGF), vascular endothelial growth factor A (VEGFA), VEGF receptor 2 (VEGFR2), angiopoietin-1 (Ang-1), while down-regulated angiopoietin-2 (Ang-2), stromal cell derived factor-1 (SDF-1), and cxc chemokine receptor 4 (CXCR4) expression in infarct rat cortex, and similar results were obtained in subsequent Western blot experiment. Furthermore, CCK8 assay and transwell migration assay were performed to assess cell proliferation, migration, and tube formation. The medicated serum (MS) of HSHS appeared to have beneficial effects for immortalized human umbilical vein cells (Im-HUVECs) on proliferation and migration after persistence hypoxia. Western blot analysis revealed that the expression of hypoxia inducible factor-1α (HIF-1α), VEGFA, Ang-1, Ang-2, and CXCR4 were significantly up-regulated while Ang-2 was down-regulated by HSHS MS treatment compared with vehicle group in vitro. Conclusion: The present study suggests a novel application of HSHS as an effective angiogenic formula for stroke recovery.
Collapse
|
8
|
Zhou H, Song H, Wu Y, Liu X, Li J, Zhao H, Tang M, Ji X, Zhang L, Su Y, He Y, Feng K, Jiao Y, Xu H. Oxygen-induced circRNA profiles and coregulatory networks in a retinopathy of prematurity mouse model. Exp Ther Med 2019; 18:2037-2050. [PMID: 31452702 PMCID: PMC6704537 DOI: 10.3892/etm.2019.7819] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Accepted: 06/27/2019] [Indexed: 02/06/2023] Open
Abstract
Retinopathy of prematurity (ROP) is a leading cause of childhood blindness. At present, the molecular mechanisms underlying ROP are still far from being clearly understood. Circular RNAs (circRNAs), a novel class of noncoding RNAs, have been reported to serve vital regulatory roles in several human diseases. However, it is still unclear how circRNAs are involved in ROP. In the present study, oxygen-induced retinopathy (OIR) murine retinal samples and paired normal tissues were chosen for high-throughput transcriptome RNA sequencing and bioinformatic analyses. As a result, a total of 236 differentially expressed circRNAs, 14 differentially expressed miRNAs, and 9,756 differentially expressed mRNAs were identified in the OIR samples. Gene ontology analysis showed that angiogenesis ranked in the top five upregulated biological processes associated with differential mRNA expression. Then, 66 co-expression pairs of circRNA-mRNA were predicted according to the mRNAs that were enriched in angiogenesis. Furthermore, coregulation prediction was separately performed to identify the differentially expressed miRNAs that targeted angiogenesis-associated circRNAs or mRNAs. Finally, nine differentially expressed circRNAs were predicted to be competing endogenous RNAs by constructing a circRNA-miRNA-mRNA network followed by reverse transcription-quantitative PCR validation. The results of the present study suggest that the identified set of circRNA transcripts and the potential regulatory mechanisms for the development of ROP are worthy of functional studies.
Collapse
Affiliation(s)
- Huiting Zhou
- Institute of Pediatric Research, Children's Hospital of Soochow University, Suzhou, Jiangsu 215025, P.R. China
| | - Huihui Song
- Department of Medical Imaging, Suzhou Psychiatric Hospital, The Affiliated Guangji Hospital of Soochow University, Suzhou, Jiangsu 215137, P.R. China
| | - Yi Wu
- Department of Pathology, Children's Hospital of Soochow University, Suzhou, Jiangsu 215025, P.R. China
| | - Xiang Liu
- Department of Ophthalmology, Children's Hospital of Soochow University, Suzhou, Jiangsu 215025, P.R. China
| | - Jing Li
- Department of Ophthalmology, Children's Hospital of Soochow University, Suzhou, Jiangsu 215025, P.R. China
| | - He Zhao
- Institute of Pediatric Research, Children's Hospital of Soochow University, Suzhou, Jiangsu 215025, P.R. China
| | - Miaomiao Tang
- Laboratory of Nanoscale Biochemical Analysis, Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Institute of Functional Nano and Soft Materials, Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou, Jiangsu 215123, P.R. China
| | - Xiaoyuan Ji
- Laboratory of Nanoscale Biochemical Analysis, Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Institute of Functional Nano and Soft Materials, Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou, Jiangsu 215123, P.R. China
| | - Lu Zhang
- Laboratory of Nanoscale Biochemical Analysis, Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Institute of Functional Nano and Soft Materials, Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou, Jiangsu 215123, P.R. China
| | - Yuanyuan Su
- Laboratory of Nanoscale Biochemical Analysis, Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Institute of Functional Nano and Soft Materials, Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou, Jiangsu 215123, P.R. China
| | - Yao He
- Laboratory of Nanoscale Biochemical Analysis, Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Institute of Functional Nano and Soft Materials, Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou, Jiangsu 215123, P.R. China
| | - Kehong Feng
- Department of Ophthalmology, Children's Hospital of Soochow University, Suzhou, Jiangsu 215025, P.R. China
| | - Yang Jiao
- School of Radiation Medicine and Protection, Medical College of Soochow University, Suzhou, Jiangsu 215123, P.R. China.,State Key Laboratory of Radiological Medicine and Protection, School of Radiation Medicine and Protection, Soochow University, Suzhou, Jiangsu 215123, P.R. China
| | - Hua Xu
- Department of Ophthalmology, Children's Hospital of Soochow University, Suzhou, Jiangsu 215025, P.R. China
| |
Collapse
|
9
|
Liu C, Liu Y, He J, Mu R, Di Y, Shen N, Liu X, Gao X, Wang J, Chen T, Fang T, Li H, Tian F. Liraglutide Increases VEGF Expression via CNPY2-PERK Pathway Induced by Hypoxia/Reoxygenation Injury. Front Pharmacol 2019; 10:789. [PMID: 31396081 PMCID: PMC6664686 DOI: 10.3389/fphar.2019.00789] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2019] [Accepted: 06/18/2019] [Indexed: 12/11/2022] Open
Abstract
Liraglutide (Lir) is a glucagon-like peptide-1 receptor agonist that lowers blood sugar and reduces myocardial infarct size by improving endothelial cell function. However, its mechanism has not yet been clarified. Unfolded protein response (UPR) plays an important role in the pathogenesis of myocardial ischemia-reperfusion injury. It determines the survival of cells. Endoplasmic reticulum position protein homologue 2 (CNPY2) is a novel initiator of UPR that also participates in angiogenesis. To this extent, the current study further explored whether Lir regulates angiogenesis through CNPY2. In our article, a hypoxia/reoxygenation (H/R) injury model of human umbilical vein endothelial cells (HUVECs) was established and the effect of Lir on HUVECs was first evaluated by the Cell Counting Kit-8. Endothelial tube formation was used to analyze the ability of Lir to induce angiogenesis. Subsequently, the effect of Lir on the concentrations of hypoxia-inducible factor 1α (HIF1α), vascular endothelial growth factor (VEGF), and CNPY2 was detected by enzyme-linked immunosorbent assay. To assess whether Lir regulates angiogenesis through the CNPY2-initiated UPR pathway, the expression of UPR-related pathway proteins (CNPY2, GRP78, PERK, and ATF4) and angiogenic proteins (HIF1α and VEGF) was detected by reverse transcription-polymerase chain reaction and Western blot. The results confirmed that Lir significantly increased the expression of HIF1α and VEGF as well as the expression of CNPY2-PERK pathway proteins in HUVECs after H/R injury. To further validate the experimental results, we introduced the PERK inhibitor GSK2606414. GSK2606414 was able to significantly decrease both the mRNA and protein expression of ATF4, HIF1α, and VEGF in vascular endothelial cells after H/R injury. The effect of Lir was also inhibited using GSK2606414. Therefore, our study suggested that the CNPY2-PERK pathway was involved in the mechanism of VEGF expression after H/R injury in HUVECs. Lir increased the expression of VEGF through the CNPY2-PERK pathway, which may promote endothelial cell angiogenesis and protect HUVEC from H/R damage.
Collapse
Affiliation(s)
- Chong Liu
- Department of Anaesthesiology, Tianjin 4th Centre Hospital, The Fourth Central Hospital Affiliated to Nankai University, The Fourth Center Clinical College of Tianjin Medical University, Tianjin, China.,Central Laboratory, Tianjin 4th Centre Hospital, The Fourth Central Hospital Affiliated to Nankai University, The Fourth Center Clinical College of Tianjin Medical University, Tianjin, China
| | - Yong Liu
- Department of Cardiology, Tianjin 4th Centre Hospital, The Fourth Central Hospital Affiliated to Nankai University, The Fourth Center Clinical College of Tianjin Medical University, Tianjin, China
| | - Jing He
- Department of Cardiology, Tianjin 4th Centre Hospital, The Fourth Central Hospital Affiliated to Nankai University, The Fourth Center Clinical College of Tianjin Medical University, Tianjin, China
| | - Rong Mu
- Department of Anaesthesiology, Tianjin 4th Centre Hospital, The Fourth Central Hospital Affiliated to Nankai University, The Fourth Center Clinical College of Tianjin Medical University, Tianjin, China
| | - Yanbo Di
- Central Laboratory, Tianjin 4th Centre Hospital, The Fourth Central Hospital Affiliated to Nankai University, The Fourth Center Clinical College of Tianjin Medical University, Tianjin, China
| | - Na Shen
- Central Laboratory, Tianjin 4th Centre Hospital, The Fourth Central Hospital Affiliated to Nankai University, The Fourth Center Clinical College of Tianjin Medical University, Tianjin, China
| | - Xuan Liu
- Central Laboratory, Tianjin 4th Centre Hospital, The Fourth Central Hospital Affiliated to Nankai University, The Fourth Center Clinical College of Tianjin Medical University, Tianjin, China
| | - Xiao Gao
- Central Laboratory, Tianjin 4th Centre Hospital, The Fourth Central Hospital Affiliated to Nankai University, The Fourth Center Clinical College of Tianjin Medical University, Tianjin, China
| | - Jinhui Wang
- Department of Anaesthesiology, Tianjin 4th Centre Hospital, The Fourth Central Hospital Affiliated to Nankai University, The Fourth Center Clinical College of Tianjin Medical University, Tianjin, China
| | - Tie Chen
- Department of Anaesthesiology, Tianjin 4th Centre Hospital, The Fourth Central Hospital Affiliated to Nankai University, The Fourth Center Clinical College of Tianjin Medical University, Tianjin, China
| | - Tao Fang
- Central Laboratory, Tianjin 4th Centre Hospital, The Fourth Central Hospital Affiliated to Nankai University, The Fourth Center Clinical College of Tianjin Medical University, Tianjin, China
| | - Huanming Li
- Department of Cardiology, Tianjin 4th Centre Hospital, The Fourth Central Hospital Affiliated to Nankai University, The Fourth Center Clinical College of Tianjin Medical University, Tianjin, China
| | - Fengshi Tian
- Department of Cardiology, Tianjin 4th Centre Hospital, The Fourth Central Hospital Affiliated to Nankai University, The Fourth Center Clinical College of Tianjin Medical University, Tianjin, China
| |
Collapse
|
10
|
Huang Q, Zhong W, Hu Z, Tang X. A review of the role of cav-1 in neuropathology and neural recovery after ischemic stroke. J Neuroinflammation 2018; 15:348. [PMID: 30572925 PMCID: PMC6302517 DOI: 10.1186/s12974-018-1387-y] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2018] [Accepted: 11/29/2018] [Indexed: 12/12/2022] Open
Abstract
Ischemic stroke starts a series of pathophysiological processes that cause brain injury. Caveolin-1 (cav-1) is an integrated protein and locates at the caveolar membrane. It has been demonstrated that cav-1 can protect blood–brain barrier (BBB) integrity by inhibiting matrix metalloproteases (MMPs) which degrade tight junction proteins. This article reviews recent developments in understanding the mechanisms underlying BBB dysfunction, neuroinflammation, and oxidative stress after ischemic stroke, and focuses on how cav-1 modulates a series of activities after ischemic stroke. In general, cav-1 reduces BBB permeability mainly by downregulating MMP9, reduces neuroinflammation through influencing cytokines and inflammatory cells, promotes nerve regeneration and angiogenesis via cav-1/VEGF pathway, reduces apoptosis, and reduces the damage mediated by oxidative stress. In addition, we also summarize some experimental results that are contrary to the above and explore possible reasons for these differences.
Collapse
Affiliation(s)
- Qianyi Huang
- Department of Neurology, The Second Xiangya Hospital, Central South University, Renmin Road 139#, Changsha, 410011, Hunan, China
| | - Wei Zhong
- Department of Neurology, The Second Xiangya Hospital, Central South University, Renmin Road 139#, Changsha, 410011, Hunan, China
| | - Zhiping Hu
- Department of Neurology, The Second Xiangya Hospital, Central South University, Renmin Road 139#, Changsha, 410011, Hunan, China
| | - Xiangqi Tang
- Department of Neurology, The Second Xiangya Hospital, Central South University, Renmin Road 139#, Changsha, 410011, Hunan, China.
| |
Collapse
|
11
|
Tang H, Jiang Z, He H, Li X, Hu H, Zhang N, Dai Y, Zhou Z. Uptake and transport of pullulan acetate nanoparticles in the BeWo b30 placental barrier cell model. Int J Nanomedicine 2018; 13:4073-4082. [PMID: 30034233 PMCID: PMC6047610 DOI: 10.2147/ijn.s161319] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
INTRODUCTION Nanomedicine has shown a great potential in perinatal medicine because of its characteristics of sustained, controlled release and targeting ability; on the other hand, it may also lead to unexpected toxicities such as embryotoxicity and even malformation after crossing the placental barrier, but data concerning transplacental transport are scarce. Pullulan acetate (PA) nanoparticles (NPs) are a promising nanocarrier derived from natural polysaccharide; however, their transplacental transport ability and mechanism are unknown. MATERIALS AND METHODS In this study, fluorescein isothiocyanate (FITC) conjugated PA (PA-FITC) was synthesized. PA-FITC NPs were characterized by dynamic light scattering, transmission electron microscopy (TEM) and scanning electron microscopy (SEM). The cytotoxicity of PA-FITC NPs at concentrations of 15, 30, 60, 125, 250, 500, 1,000 and 2,000 μg/mL was studied by cell counting kit-8. The human chorionic gonadotrophin (HCG) cytokine assay was conducted to evaluate the biological function of BeWo b30 cells. Endocytic mechanisms of PA-FITC NPs were investigated via fluorescence analysis. The monolayer properties were characterized by TEM, tight junction staining, transepithelial electrical resistance and fluorescein sodium transportation. The transport ability was measured in the cell based transwell model by confocal imaging and SEM. RESULTS PA-FITC NPs were almost spherical shape with a size range of 200-300 nm. Cell viability of BeWo b30 cells was up to 100% in all groups. The concentrations of HCG increased with increasing numbers of cells and culture time, which showed the good biological function of BeWo b30 cells. PA-FITC NPs were rapidly endocytosed through caveolae-mediated endocytosis and pinocytosis, with uptake inhibition rates with nystatin (NY) and colchicines (Col) of 55% and 51% respectively. BeWo b30 cell monolayer was formed over 5 days. PA-FITC NPs were found in the cytoplasm of cells on the transwell membranes; while some NPs were found in the basolateral (fetal) compartment over 24 h. CONCLUSION In summary, PA-FITC NPs are nontoxic, can cross the blood-placental barrier, and show mainly internalization to BeWo b30 cells through caveolae-mediated endocytosis and pinocytosis pathways, major via the former pathway. The results could benefit the adjustment and control of the transplacental transport of nanomedicines.
Collapse
Affiliation(s)
- Hongbo Tang
- Department of Pharmacy, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing 100006, People's Republic of China
| | - Ziwen Jiang
- Department of Gynecology, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing 100006, People's Republic of China,
| | - Haibo He
- College of Biological and Pharmaceutical Sciences, China Three Gorges University, Yichang 443002, People's Republic of China
| | - Xiaoqin Li
- College of Biological and Pharmaceutical Sciences, China Three Gorges University, Yichang 443002, People's Republic of China
| | - Haipeng Hu
- Department of Pharmacy, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing 100006, People's Republic of China
| | - Ning Zhang
- Department of Pharmacy, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing 100006, People's Republic of China
| | - Yinmei Dai
- Department of Gynecology, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing 100006, People's Republic of China,
| | - Zhimin Zhou
- Biomedical Barriers Research Center, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin Key Laboratory of Biomedical Materials, Tianjin, 300192, People's Republic of China,
| |
Collapse
|