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Freundt GV, von Samson-Himmelstjerna FA, Nitz JT, Luedde M, Waltenberger J, Wieland T, Frey N, Preusch M, Hippe HJ. The orphan receptor GPRC5B activates pro-inflammatory signaling in the vascular wall via Fyn and NFκB. Biochem Biophys Res Commun 2022; 592:60-66. [PMID: 35033869 DOI: 10.1016/j.bbrc.2022.01.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Accepted: 01/04/2022] [Indexed: 02/07/2023]
Abstract
BACKGROUND AND AIMS Atherosclerosis is driven by an inflammatory process of the vascular wall. The novel orphan G-protein coupled receptor 5B of family C (GPRC5B) is involved in drosophila sugar and lipid metabolism as well as mice adipose tissue inflammation. Here, we investigated the role of GPRC5B in the pro-atherogenic mechanisms of hyperglycemia and vascular inflammation. METHODS Immortalized and primary endothelial cells (ECs) and vascular smooth muscle cells (VSMCs) were used for stimulation with high glucose or different cytokines. Adenoviral- or plasmid-driven GPRC5B overexpression and siRNA-mediated knockdown were performed in these cells to analyze functional and mechanistic pathways of GPRC5B. RESULTS In ECs and VSMCs, stimulation with high glucose, TNFα or LPS induced a significant upregulation of endogenous GPRC5B mRNA and protein levels. GPRC5B overexpression and knockdown increased and attenuated, respectively, the expression of the pro-inflammatory cytokines TNFα, IL-1β, IL-6 as well as the pro-atherogenic vascular adhesion molecules ICAM-1 and VCAM-1. Furthermore, the expression and activity of the metalloproteinase MMP-9, a component of atherosclerotic plaque stabilization, were significantly enhanced by GPRC5B overexpression. Mechanistically, GPRC5B increased the phosphorylation of ERK1/2 and activated NFκB through a direct interaction with the tyrosine kinase Fyn. CONCLUSIONS Our findings demonstrate that GPRC5B is upregulated in response to high glucose and pro-inflammatory signaling. GPRC5B functionally modulates the inflammatory activity in cells of the vascular wall, suggesting a pro-atherogenic GPRC5B-dependent positive feedback loop via Fyn and NFκB. Thus, GPRC5B warrants further attention as a novel pharmacological target for the treatment of vascular inflammation and possibly atherogenesis.
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Affiliation(s)
- Greta Verena Freundt
- Department of Cardiology and Angiology, University Hospital Schleswig-Holstein, Campus Kiel, Arnold-Heller-Str. 3, D-24105, Kiel, Germany
| | | | - Jan-Thorge Nitz
- Department of Cardiology and Angiology, University Hospital Schleswig-Holstein, Campus Kiel, Arnold-Heller-Str. 3, D-24105, Kiel, Germany
| | - Mark Luedde
- Department of Cardiology and Angiology, University Hospital Schleswig-Holstein, Campus Kiel, Arnold-Heller-Str. 3, D-24105, Kiel, Germany
| | - Johannes Waltenberger
- Department of Cardiovascular Medicine, Medical Faculty, University of Münster, D- 48149, Münster, Germany
| | - Thomas Wieland
- Institute of Experimental and Clinical Pharmacology and Toxicology, Medical Faculty Mannheim, University of Heidelberg, Maybachstr. 14, D-68169, Mannheim, Germany
| | - Norbert Frey
- Department of Cardiology and Angiology, University Hospital Schleswig-Holstein, Campus Kiel, Arnold-Heller-Str. 3, D-24105, Kiel, Germany
| | - Michael Preusch
- Department of Cardiology, Angiology and Pneumology, University of Heidelberg, Im Neuenheimer Feld 410, D-69120, Heidelberg, Germany
| | - Hans-Jörg Hippe
- Department of Cardiology and Angiology, University Hospital Schleswig-Holstein, Campus Kiel, Arnold-Heller-Str. 3, D-24105, Kiel, Germany.
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Tsoumani M, Nikolaou PE, Argyropoulou A, Tseti I, Mitakou S, Andreadou I. Novel Evidence-Based Combination of Plant Extracts with Multitarget Mechanisms of Action for the Elimination of Hot Flashes during Menopause. Molecules 2022; 27:molecules27041221. [PMID: 35209016 PMCID: PMC8874944 DOI: 10.3390/molecules27041221] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Revised: 02/01/2022] [Accepted: 02/09/2022] [Indexed: 02/04/2023] Open
Abstract
Hot flashes are considered the most bothersome complaint during menopause. Although hormone therapy is an effective option to relieve hot flashes, it has been associated with significant side effects. The aim of our study is to suggest a novel combination of different plant extracts with distinct mechanisms of action against hot flashes. We selected the rhizome of Glycyrrhiza glabra L. (Fabaceae), the rhizome of Actaea racemosa L. (Ranunculaceae), the aerial parts of Hypericum perforatum L. (Hypericaceae) to produce extracts rich in bioactive phytochemicals and the seed oil of Oenothera biennis L. (Onagraceae). We investigated their estrogenic and antioxidant potential and their inhibitory effect against prostaglandin D2 receptor 1 (DP1) as a novel mechanistic pathway for vasodilation in hot flashes, alone or in combination. The phytochemical footprint of the extracts was analyzed using HPLC-PDA and UPLC-HRMS. We observed that the tested extracts possess different mechanisms of action. A. racemosa exerts a beneficial activation of the estrogen receptor, H. perforatum possesses the highest antioxidant capacity and the seed oil of O. biennis inhibits the DP1 receptor. The triple combination in the optimal doses pertains to efficacy against all three mechanisms of action, serves as a multitarget plant-based therapy and could serve as a novel strategy for the alleviation of hot flashes in postmenopausal women.
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Affiliation(s)
- Maria Tsoumani
- Laboratory of Pharmacology, School of Pharmacy, National and Kapodistrian University of Athens, 15771 Athens, Greece; (M.T.); (P.E.N.)
| | - Panagiota Efstathia Nikolaou
- Laboratory of Pharmacology, School of Pharmacy, National and Kapodistrian University of Athens, 15771 Athens, Greece; (M.T.); (P.E.N.)
| | - Aikaterini Argyropoulou
- Division of Pharmacognosy and Natural Products Chemistry, School of Pharmacy, National and Kapodistrian University of Athens, 15771 Athens, Greece; (A.A.); (S.M.)
| | | | - Sofia Mitakou
- Division of Pharmacognosy and Natural Products Chemistry, School of Pharmacy, National and Kapodistrian University of Athens, 15771 Athens, Greece; (A.A.); (S.M.)
| | - Ioanna Andreadou
- Laboratory of Pharmacology, School of Pharmacy, National and Kapodistrian University of Athens, 15771 Athens, Greece; (M.T.); (P.E.N.)
- Correspondence: ; Tel.: +30-210-727-4827
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Barbu E, Popescu MR, Popescu AC, Balanescu SM. Inflammation as A Precursor of Atherothrombosis, Diabetes and Early Vascular Aging. Int J Mol Sci 2022; 23:963. [PMID: 35055149 PMCID: PMC8778078 DOI: 10.3390/ijms23020963] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 01/12/2022] [Accepted: 01/13/2022] [Indexed: 02/07/2023] Open
Abstract
Vascular disease was for a long time considered a disease of the old age, but it is becoming increasingly clear that a cumulus of factors can cause early vascular aging (EVA). Inflammation plays a key role in vascular stiffening and also in other pathologies that induce vascular damage. There is a known and confirmed connection between inflammation and atherosclerosis. However, it has taken a long time to prove the beneficial effects of anti-inflammatory drugs on cardiovascular events. Diabetes can be both a product of inflammation and a cofactor implicated in the progression of vascular disease. When diabetes and inflammation are accompanied by obesity, this ominous trifecta leads to an increased incidence of atherothrombotic events. Research into earlier stages of vascular disease, and documentation of vulnerability to premature vascular disease, might be the key to success in preventing clinical events. Modulation of inflammation, combined with strict control of classical cardiovascular risk factors, seems to be the winning recipe. Identification of population subsets with a successful vascular aging (supernormal vascular aging-SUPERNOVA) pattern could also bring forth novel therapeutic interventions.
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Affiliation(s)
| | - Mihaela-Roxana Popescu
- Department of Cardiology, Elias Emergency University Hospital, Carol Davila University of Medicine and Pharmacy, 011461 Bucharest, Romania; (E.B.); (S.-M.B.)
| | - Andreea-Catarina Popescu
- Department of Cardiology, Elias Emergency University Hospital, Carol Davila University of Medicine and Pharmacy, 011461 Bucharest, Romania; (E.B.); (S.-M.B.)
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Zhang K, Chai B, Ji H, Chen L, Ma Y, Zhu L, Xu J, Wu Y, Lan Y, Li H, Feng Z, Xiao J, Zhang H, Xu K. Bioglass promotes wound healing by inhibiting endothelial cell pyroptosis through regulation of the connexin 43/reactive oxygen species (ROS) signaling pathway. J Transl Med 2022; 102:90-101. [PMID: 34521991 DOI: 10.1038/s41374-021-00675-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 08/22/2021] [Accepted: 08/30/2021] [Indexed: 11/08/2022] Open
Abstract
Bioactive glass (BG) has recently shown great promise in soft tissue repair, especially in wound healing; however, the underlying mechanism remains unclear. Pyroptosis is a novel type of programmed cell death that is involved in various traumatic injury diseases. Here, we hypothesized that BG may promote wound healing through suppression of pyroptosis. To test this scenario, we investigated the possible effect of BG on pyroptosis in wound healing both in vivo and in vitro. This study showed that BG can accelerate wound closure, granulation formation, collagen deposition, and angiogenesis. Moreover, western blot analysis and immunofluorescence staining revealed that BG inhibited the expression of pyroptosis-related proteins in vivo and in vitro. In addition, while BG regulated the expression of connexin43 (Cx43), it inhibited reactive oxygen species (ROS) production. Cx43 activation and inhibition experiments further indicate that BG inhibited pyroptosis in endothelial cells by decreasing Cx43 expression and ROS levels. Taken together, these studies suggest that BG promotes wound healing by inhibiting pyroptosis via Cx43/ROS signaling pathway.
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Affiliation(s)
- Kailun Zhang
- Institute of Life Sciences, Engineering Laboratory of Zhejiang province for pharmaceutical development of growth factors, Biomedical Collaborative Innovation Center of Wenzhou, Wenzhou University, Zhejiang, China
| | - Bo Chai
- School of Pharmaceutical Sciences, Wenzhou Wound Repair and Regeneration Key Laboratory, Cixi Biomedical Research Institute, Wenzhou Medical University, Zhejiang, China
| | - Hao Ji
- Institute of Life Sciences, Engineering Laboratory of Zhejiang province for pharmaceutical development of growth factors, Biomedical Collaborative Innovation Center of Wenzhou, Wenzhou University, Zhejiang, China
| | - Liuqing Chen
- Institute of Life Sciences, Engineering Laboratory of Zhejiang province for pharmaceutical development of growth factors, Biomedical Collaborative Innovation Center of Wenzhou, Wenzhou University, Zhejiang, China
| | - Yanbing Ma
- Institute of Life Sciences, Engineering Laboratory of Zhejiang province for pharmaceutical development of growth factors, Biomedical Collaborative Innovation Center of Wenzhou, Wenzhou University, Zhejiang, China
| | - Lifei Zhu
- School of Pharmaceutical Sciences, Wenzhou Wound Repair and Regeneration Key Laboratory, Cixi Biomedical Research Institute, Wenzhou Medical University, Zhejiang, China
| | - Jingyu Xu
- Institute of Life Sciences, Engineering Laboratory of Zhejiang province for pharmaceutical development of growth factors, Biomedical Collaborative Innovation Center of Wenzhou, Wenzhou University, Zhejiang, China
| | - Yanqing Wu
- Institute of Life Sciences, Engineering Laboratory of Zhejiang province for pharmaceutical development of growth factors, Biomedical Collaborative Innovation Center of Wenzhou, Wenzhou University, Zhejiang, China
| | - Yinan Lan
- Department of Orthopedic Surgery, Lishui Central Hospital, The Fifth Affiliated Hospital of Wenzhou Medical University, Zhejiang, China
| | - Hao Li
- Department of Orthopedics Surgery, Lishui People's Hospital, The sixth affiliated hospital of Wenzhou medical university, Lishui, Zhejiang, China
| | - Zhiguo Feng
- School of Pharmaceutical Sciences, Wenzhou Wound Repair and Regeneration Key Laboratory, Cixi Biomedical Research Institute, Wenzhou Medical University, Zhejiang, China
| | - Jian Xiao
- School of Pharmaceutical Sciences, Wenzhou Wound Repair and Regeneration Key Laboratory, Cixi Biomedical Research Institute, Wenzhou Medical University, Zhejiang, China.
| | - Hongyu Zhang
- School of Pharmaceutical Sciences, Wenzhou Wound Repair and Regeneration Key Laboratory, Cixi Biomedical Research Institute, Wenzhou Medical University, Zhejiang, China.
| | - Ke Xu
- Institute of Life Sciences, Engineering Laboratory of Zhejiang province for pharmaceutical development of growth factors, Biomedical Collaborative Innovation Center of Wenzhou, Wenzhou University, Zhejiang, China.
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Ghoneim FM, Abo-Elkhair SM, Elsamanoudy AZ, Shabaan DA. Evaluation of Endothelial Dysfunction and Autophagy in Fibromyalgia-Related Vascular and Cerebral Cortical Changes and the Ameliorative Effect of Fisetin. Cells 2021; 11:48. [PMID: 35011610 PMCID: PMC8750434 DOI: 10.3390/cells11010048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2021] [Revised: 12/22/2021] [Accepted: 12/23/2021] [Indexed: 11/17/2022] Open
Abstract
Fibromyalgia (FM) is a common chronic pain syndrome that affects 1% to 5% of the population. We aimed to investigate the role of endothelial dysfunction and autophagy in fibromyalgia-related vascular and cerebral cortical changes in a reserpine-induced rat model of fibromyalgia at the histological and molecular levels and to study the ameliorative effect of fisetin. Forty adult female albino rats were divided into four groups (10 each): two control groups, the reserpine-induced fibromyalgia group, and the fisetin-treated group. The carotid arteries and brains of the animals were dissected. Frozen tissue samples were used for total RNA extraction and qPCR analysis of eNOS, caspase-3, Bcl-2, LC-3, BECN-1, CHOP, and TNF-α expression. Histological, immunohistochemical (eNOS), and ultrastructure studies were conducted. The carotid arteries revealed excessive autophagy and endothelial, vascular, and apoptotic changes. The cerebral cortex showed similar findings apart from endoplasmic reticulum stress. Additionally, there was decreased gene expression of eNOS and Bcl-2 and increased expression of caspase-3, LC-3, BECN-1, CHOP, and TNF-α. In the fisetin-treated rats, improvements in the histological and molecular results were detected. In conclusion, oxidative stress, enhanced apoptosis, and excessive autophagy are fundamental pathophysiologic mechanisms of reserpine-induced fibromyalgia. Moreover, fisetin has an ameliorative effect against fibromyalgia.
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Affiliation(s)
- Fatma Mohamed Ghoneim
- Histology and Cell Biology Department, Faculty of Medicine, Mansoura University, Mansoura 35516, Egypt; (F.M.G.); (D.A.S.)
| | - Salwa Mohamed Abo-Elkhair
- Medical Biochemistry and Molecular Biology Department, Faculty of Medicine, Mansoura University, Mansoura 35516, Egypt;
| | - Ayman Zaky Elsamanoudy
- Medical Biochemistry and Molecular Biology Department, Faculty of Medicine, Mansoura University, Mansoura 35516, Egypt;
- Clinical Biochemistry Department, Faculty of Medicine, King Abdulaziz University, Jeddah 21465, Saudi Arabia
| | - Dalia A. Shabaan
- Histology and Cell Biology Department, Faculty of Medicine, Mansoura University, Mansoura 35516, Egypt; (F.M.G.); (D.A.S.)
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Gao F, Dong W, Liu P, Narayanan J, Fish BL, Jacobs ER, Medhora M. Molecular Changes in miRNA in Irradiated Rat Kidneys: Role of miR-34a and its Vascular Targets in the Notch Pathway. Radiat Res 2021; 196:611-622. [PMID: 34330145 PMCID: PMC10416360 DOI: 10.1667/rade-20-00078.1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Accepted: 07/19/2021] [Indexed: 11/03/2022]
Abstract
The mechanism(s) of vascular regression in adult organs remains an unexplored gap. Irradiation to the kidney results in vascular regression and renal failure. The goal of this work was to determine molecular mechanism(s) of radiation-induced vascular regression and its mitigation by the drug lisinopril. Female WAG/RijCmcr rats received either 13 Gy X-ray irradiation, sparing one leg, or no irradiation, the latter serving as age-matched controls. Some irradiated animals received lisinopril. Kidney miRNA-seq was performed 35 days postirradiation, before symptoms of nephropathy. MicroRNA expression profiles were compared with data from humans. MicroRNA targets were predicted using TargetScan and confirmed by qRT-PCR and Western blot. Renal vascular endothelial cell density was evaluated at 100 days to confirm vascular regression. The normal rat kidney microRNA profile resembled that of humans. MiR-34a was increased >7-fold and emerged as the predominant rat microRNA altered by radiation. Expression of Jagged1, a ligand in the Notch pathway of vascular development and a target of miR-34a-5p was decreased by radiation but not in irradiated rats receiving lisinopril. Radiation decreased endothelial cells in the kidneys at 100 days, confirming vascular regression. In conclusion, the results of this study showed that radiation greatly increased miRNA34-a in rat kidneys, while lisinopril mitigated radiation-induced decrease of the Notch ligand, Jagged1, a molecular target of miRNA34-a.
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Affiliation(s)
- Feng Gao
- Department of Radiation Oncology Medical College of Wisconsin, Wauwatosa, Wisconsin
- Department of College of Dental Medicine - Illinois, Midwestern University, Downers Grove, Illinois
| | - Wei Dong
- Department of Radiation Oncology Medical College of Wisconsin, Wauwatosa, Wisconsin
| | - Pengyuan Liu
- Department of Physiology Medical College of Wisconsin, Wauwatosa, Wisconsin
| | - Jayashree Narayanan
- Department of Radiation Oncology Medical College of Wisconsin, Wauwatosa, Wisconsin
| | - Brian L. Fish
- Department of Radiation Oncology Medical College of Wisconsin, Wauwatosa, Wisconsin
| | - Elizabeth R. Jacobs
- Department of Physiology Medical College of Wisconsin, Wauwatosa, Wisconsin
- Department of Pulmonary Medicine Medical College of Wisconsin, Wauwatosa, Wisconsin
- Department of Cardiovascular Center, Medical College of Wisconsin, Wauwatosa, Wisconsin
- Research Service, Department of Veterans Affairs, Zablocki VAMC, Milwaukee, Wisconsin
| | - Meetha Medhora
- Department of Radiation Oncology Medical College of Wisconsin, Wauwatosa, Wisconsin
- Department of Physiology Medical College of Wisconsin, Wauwatosa, Wisconsin
- Department of Pulmonary Medicine Medical College of Wisconsin, Wauwatosa, Wisconsin
- Department of Cardiovascular Center, Medical College of Wisconsin, Wauwatosa, Wisconsin
- Research Service, Department of Veterans Affairs, Zablocki VAMC, Milwaukee, Wisconsin
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Lingam TMC, Tan KY, Tan CH. Capillary leak syndrome induced by the venoms of Russell's Vipers (Daboia russelii and Daboia siamensis) from eight locales and neutralization of the differential toxicity by three snake antivenoms. Comp Biochem Physiol C Toxicol Pharmacol 2021; 250:109186. [PMID: 34508870 DOI: 10.1016/j.cbpc.2021.109186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Revised: 08/30/2021] [Accepted: 09/02/2021] [Indexed: 10/20/2022]
Abstract
Snakebite envenomation caused by the Western and Eastern Russell's Vipers (Daboia russelii and Daboia siamensis) may potentially induce capillary leak syndrome (CLS), while the use of antivenom in treating this has not been well examined. This study investigated the CLS-inducing toxicity of Russell's Viper venoms from various sources and examined the neutralization activity of regionally available antivenoms, using a newly devised mouse model. D. russelii venoms demonstrated a more consistent vascular leakage activity (76,000-86,000 CLS unit of vascular leak index, a function of the diameter and intensity of Evans Blue dye extravasation into dermis) than D. siamensis venoms (33,000-88,000 CLS unit). Both species venoms increased hematocrits markedly (53-67%), indicating hemoconcentration. Regional antivenoms (DsMAV-Thailand, DsMAV-Taiwan, VPAV-India) preincubated with the venoms effectively neutralized the CLS effect to different extents. When the antivenoms were administered intravenously post-envenomation (challenge-rescue model), the neutralization was less effective, implying that CLS has a rapid onset that preceded the neutralizing activity of antivenom, and/or the antivenom has limited biodistribution to the venom's inoculation site. In conclusion, Russell's Viper venoms of both species from various locales induced CLS in mice. Antivenoms generally had limited efficacy in neutralizing the CLS effect. Innovative treatment for venom-induced CLS is needed.
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Affiliation(s)
- Thava Malar Changra Lingam
- Protein and Interactomics Laboratory, Department of Molecular Medicine, Faculty of Medicine, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - Kae Yi Tan
- Protein and Interactomics Laboratory, Department of Molecular Medicine, Faculty of Medicine, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - Choo Hock Tan
- Venom Research and Toxicology Laboratory, Department of Pharmacology, Faculty of Medicine, University of Malaya, 50603 Kuala Lumpur, Malaysia.
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Liu SY, Huang CC, Huang SF, Liao TL, Kuo NR, Yang YY, Li TH, Liu CW, Hou MC, Lin HC. Pioglitazone Ameliorates Acute Endotoxemia-Induced Acute on Chronic Renal Dysfunction in Cirrhotic Ascitic Rats. Cells 2021; 10:3044. [PMID: 34831270 PMCID: PMC8616474 DOI: 10.3390/cells10113044] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2021] [Revised: 10/30/2021] [Accepted: 11/03/2021] [Indexed: 01/23/2023] Open
Abstract
Endotoxemia-activated tumor necrosis factor (TNFα)/nuclear factor kappa B (NFκB) signals result in acute on chronic inflammation-driven renal dysfunction in advanced cirrhosis. Systemic activation of peroxisome proliferator-activated receptor gamma (PPARγ) with pioglitazone can suppress inflammation-related splanchnic and pulmonary dysfunction in cirrhosis. This study explored the mechanism and effects of pioglitazone treatment on the abovementioned renal dysfunction in cirrhotic rats. Cirrhotic ascitic rats were induced with renal dysfunction by bile duct ligation (BDL). Then, 2 weeks of pioglitazone treatment (Pio, PPAR gamma agonist, 12 mg/kg/day, using the azert osmotic pump) was administered from the 6th week after BDL. Additionally, acute lipopolysaccharide (LPS, Escherichia coli 0111:B4; Sigma, 0.1 mg/kg b.w, i.p. dissolved in NaCl 0.9%) was used to induce acute renal dysfunction. Subsequently, various circulating, renal arterial and renal tissue pathogenic markers were measured. Cirrhotic BDL rats are characterized by decreased mean arterial pressure, increased cardiac output and portal venous pressure, reduced renal arterial blood flow (RABF), increased renal vascular resistance (RVR), increased relative renal weight/hydroxyproline, downregulated renal PPARγ expression, upregulated renal inflammatory markers (TNFα, NFκB, IL-6, MCP-1), increased adhesion molecules (VCAM-1 and ICAM-1), increased renal macrophages (M1, CD68), and progressive renal dysfunction (increasing serum and urinary levels of renal injury markers (lipocalin-2 and IL-18)). In particular, acute LPS administration induces acute on chronic renal dysfunction (increasing serum BUN/creatinine, increasing RVR and decreasing RABF) by increased TNFα-NFκB-mediated renal inflammatory markers as well as renal M1 macrophage infiltration. In comparison with the BDL+LPS group, chronic pioglitazone pre-treatment prevented LPS-induced renal pathogenic changes in the BDL-Pio+LPS group. Activation of systemic, renal vessel and renal tissue levels of PPARγ by chronic pioglitazone treatment has beneficial effects on the endotoxemia-related TNFα/NFκB-mediated acute and chronic renal inflammation in cirrhosis. This study revealed that normalization of renal and renal arterial levels of PPARγ effectively prevented LPS-induced acute and chronic renal dysfunction in cirrhotic ascitic rats.
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Affiliation(s)
- Szu-Yu Liu
- Department of Medical Education, Medical Innovation and Research Office (MIRO), Taipei Veterans General Hospital, Taipei 11217, Taiwan; (S.-Y.L.); (C.-C.H.); (N.-R.K.)
- Department of Medicine, Taipei Veterans General Hospital, Taipei 11217, Taiwan; (S.-F.H.); (M.-C.H.)
- Faculty of Medicine, School of Medicine, National Yang-Ming Chiao Tung University, Taipei 11217, Taiwan; (T.-L.L.); (T.-H.L.); (C.-W.L.)
| | - Chia-Chang Huang
- Department of Medical Education, Medical Innovation and Research Office (MIRO), Taipei Veterans General Hospital, Taipei 11217, Taiwan; (S.-Y.L.); (C.-C.H.); (N.-R.K.)
- Department of Medicine, Taipei Veterans General Hospital, Taipei 11217, Taiwan; (S.-F.H.); (M.-C.H.)
- Faculty of Medicine, School of Medicine, National Yang-Ming Chiao Tung University, Taipei 11217, Taiwan; (T.-L.L.); (T.-H.L.); (C.-W.L.)
| | - Shiang-Fen Huang
- Department of Medicine, Taipei Veterans General Hospital, Taipei 11217, Taiwan; (S.-F.H.); (M.-C.H.)
- Faculty of Medicine, School of Medicine, National Yang-Ming Chiao Tung University, Taipei 11217, Taiwan; (T.-L.L.); (T.-H.L.); (C.-W.L.)
| | - Tsai-Ling Liao
- Faculty of Medicine, School of Medicine, National Yang-Ming Chiao Tung University, Taipei 11217, Taiwan; (T.-L.L.); (T.-H.L.); (C.-W.L.)
- Department of Medical Research, Taichung Veterans General Hospital, Taichung 11217, Taiwan
| | - Nai-Rong Kuo
- Department of Medical Education, Medical Innovation and Research Office (MIRO), Taipei Veterans General Hospital, Taipei 11217, Taiwan; (S.-Y.L.); (C.-C.H.); (N.-R.K.)
- Department of Medicine, Taipei Veterans General Hospital, Taipei 11217, Taiwan; (S.-F.H.); (M.-C.H.)
- Faculty of Medicine, School of Medicine, National Yang-Ming Chiao Tung University, Taipei 11217, Taiwan; (T.-L.L.); (T.-H.L.); (C.-W.L.)
| | - Ying-Ying Yang
- Department of Medical Education, Medical Innovation and Research Office (MIRO), Taipei Veterans General Hospital, Taipei 11217, Taiwan; (S.-Y.L.); (C.-C.H.); (N.-R.K.)
- Department of Medicine, Taipei Veterans General Hospital, Taipei 11217, Taiwan; (S.-F.H.); (M.-C.H.)
- Faculty of Medicine, School of Medicine, National Yang-Ming Chiao Tung University, Taipei 11217, Taiwan; (T.-L.L.); (T.-H.L.); (C.-W.L.)
| | - Tzu-Hao Li
- Faculty of Medicine, School of Medicine, National Yang-Ming Chiao Tung University, Taipei 11217, Taiwan; (T.-L.L.); (T.-H.L.); (C.-W.L.)
- Division of Allergy, Immunology, and Rheumatology, Department of Internal Medicine, Shin Kong Wu Ho-Su Memorial Foundation, Taipei 11217, Taiwan
| | - Chih-Wei Liu
- Faculty of Medicine, School of Medicine, National Yang-Ming Chiao Tung University, Taipei 11217, Taiwan; (T.-L.L.); (T.-H.L.); (C.-W.L.)
| | - Ming-Chih Hou
- Department of Medicine, Taipei Veterans General Hospital, Taipei 11217, Taiwan; (S.-F.H.); (M.-C.H.)
- Faculty of Medicine, School of Medicine, National Yang-Ming Chiao Tung University, Taipei 11217, Taiwan; (T.-L.L.); (T.-H.L.); (C.-W.L.)
| | - Han-Chieh Lin
- Department of Medicine, Taipei Veterans General Hospital, Taipei 11217, Taiwan; (S.-F.H.); (M.-C.H.)
- Faculty of Medicine, School of Medicine, National Yang-Ming Chiao Tung University, Taipei 11217, Taiwan; (T.-L.L.); (T.-H.L.); (C.-W.L.)
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Zhang M, Tombran-Tink J, Yang S, Zhang X, Li X, Barnstable CJ. PEDF is an endogenous inhibitor of VEGF-R2 angiogenesis signaling in endothelial cells. Exp Eye Res 2021; 213:108828. [PMID: 34742690 DOI: 10.1016/j.exer.2021.108828] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Revised: 10/20/2021] [Accepted: 11/01/2021] [Indexed: 01/03/2023]
Abstract
Pigment epithelium derived factor (PEDF), an endogenous inhibitor of angiogenesis, targets the growth of aberrant blood vessels in many tissues, including the eye. In this study we show that PEDF prevented early mitogenic signals of vascular endothelial growth factor (VEGF-A) in primate retinal endothelial cells, blocking proliferation, migration and tube formation. PEDF inhibited the phosphorylation and activation of five major downstream VEGF-A signaling partners, namely phosphoinositide-3-OH Kinase (PI3K), AKT, FAK, Src (Y416), and PLC-γ. It did so by binding to the extracellular domain of VEGF-R2, blocking VEGF-A-induced tyrosine phosphorylation (Tyr 951 and Tyr 1175), and inhibiting VEGF-R2 receptor kinase activity. PEDF had no effect on the transcription or translation of VEGF-R2 in cultured HUVECs. PEDF also bound to the extracellular domain of VEGF-R1. We conclude that PEDF blocks the growth of new blood vessels, in part, by reducing VEGF-A activation of its key mitogenic receptor, VEGF-R2, and by preventing its downstream signals in endothelial cells.
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Affiliation(s)
- Mingliang Zhang
- Tianjin Key Laboratory of Retinal Functions and Diseases, Tianjin Branch of National Clinical Research Center for Ocular Disease, Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, 251 Fukang Road, Tianjin, 300384, China
| | - Joyce Tombran-Tink
- Tianjin Key Laboratory of Retinal Functions and Diseases, Tianjin Branch of National Clinical Research Center for Ocular Disease, Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, 251 Fukang Road, Tianjin, 300384, China; Department of Neural and Behavioral Sciences, Penn State College of Medicine, Hershey, PA, 17033, USA.
| | - Songyang Yang
- Tianjin Key Laboratory of Retinal Functions and Diseases, Tianjin Branch of National Clinical Research Center for Ocular Disease, Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, 251 Fukang Road, Tianjin, 300384, China
| | - Xiaomin Zhang
- Tianjin Key Laboratory of Retinal Functions and Diseases, Tianjin Branch of National Clinical Research Center for Ocular Disease, Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, 251 Fukang Road, Tianjin, 300384, China.
| | - Xiaorong Li
- Tianjin Key Laboratory of Retinal Functions and Diseases, Tianjin Branch of National Clinical Research Center for Ocular Disease, Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, 251 Fukang Road, Tianjin, 300384, China.
| | - Colin J Barnstable
- Tianjin Key Laboratory of Retinal Functions and Diseases, Tianjin Branch of National Clinical Research Center for Ocular Disease, Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, 251 Fukang Road, Tianjin, 300384, China; Department of Neural and Behavioral Sciences, Penn State College of Medicine, Hershey, PA, 17033, USA.
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10
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Lee M, Ni N, Tang H, Li Y, Wei W, Kakinen A, Wan X, Davis TP, Song Y, Leong DT, Ding F, Ke PC. A Framework of Paracellular Transport via Nanoparticles-Induced Endothelial Leakiness. Adv Sci (Weinh) 2021; 8:e2102519. [PMID: 34495564 PMCID: PMC8564447 DOI: 10.1002/advs.202102519] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Revised: 07/21/2021] [Indexed: 05/29/2023]
Abstract
Nanomaterial-induced endothelial leakiness (NanoEL) is an interfacial phenomenon denoting the paracellular transport of nanoparticles that is pertinent to nanotoxicology, nanomedicine and biomedical engineering. While the NanoEL phenomenon is complementary to the enhanced permeability and retention effect in terms of their common applicability to delineating the permeability and behavior of nanoparticles in tumoral environments, these two effects significantly differ in scope, origin, and manifestation. In the current study, the descriptors are fully examined of the NanoEL phenomenon elicited by generic citrate-coated gold nanoparticles (AuNPs) of changing size and concentration, from microscopic gap formation and actin reorganization down to molecular signaling pathways and nanoscale interactions of AuNPs with VE-cadherin and its intra/extracellular cofactors. Employing synergistic in silico methodologies, for the first time the molecular and statistical mechanics of cadherin pair disruption, especially in response to AuNPs of the smallest size and highest concentration are revealed. This study marks a major advancement toward establishing a comprehensive NanoEL framework for complementing the understanding of the transcytotic pathway and for guiding the design and application of future nanomedicines harnessing the myriad functions of the mammalian vasculature.
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Affiliation(s)
- Myeongsang Lee
- Department of Physics and AstronomyClemson UniversityClemsonSC29634USA
| | - Nengyi Ni
- National University of SingaporeDepartment of Chemical and Biomolecular Engineering4 Engineering Drive 4Singapore117585Singapore
| | - Huayuan Tang
- Department of Physics and AstronomyClemson UniversityClemsonSC29634USA
| | - Yuhuan Li
- Liver Cancer InstituteZhongshan HospitalKey Laboratory of Carcinogenesis and Cancer InvasionMinistry of EducationFudan UniversityShanghai200032China
- Drug DeliveryDisposition and DynamicsMonash Institute of Pharmaceutical SciencesMonash University381 Royal ParadeParkvilleVIC3052Australia
| | - Wei Wei
- Key Laboratory of Luminescence Analysis and Molecular SensingMinistry of EducationCollege of Pharmaceutical SciencesSouthwest University2 Tiansheng Rd, Beibei DistrictChongqing400715China
| | - Aleksandr Kakinen
- Australian Institute for Bioengineering and NanotechnologyThe University of QueenslandBrisbaneQld4072Australia
| | - Xulin Wan
- Key Laboratory of Luminescence Analysis and Molecular SensingMinistry of EducationCollege of Pharmaceutical SciencesSouthwest University2 Tiansheng Rd, Beibei DistrictChongqing400715China
| | - Thomas P. Davis
- Drug DeliveryDisposition and DynamicsMonash Institute of Pharmaceutical SciencesMonash University381 Royal ParadeParkvilleVIC3052Australia
- Australian Institute for Bioengineering and NanotechnologyThe University of QueenslandBrisbaneQld4072Australia
| | - Yang Song
- Key Laboratory of Luminescence Analysis and Molecular SensingMinistry of EducationCollege of Pharmaceutical SciencesSouthwest University2 Tiansheng Rd, Beibei DistrictChongqing400715China
- State Key Laboratory of Environmental Chemistry and EcotoxicologyResearch Center for Eco‐Environmental SciencesChinese Academy of SciencesBeijing100085China
| | - David Tai Leong
- National University of SingaporeDepartment of Chemical and Biomolecular Engineering4 Engineering Drive 4Singapore117585Singapore
| | - Feng Ding
- Department of Physics and AstronomyClemson UniversityClemsonSC29634USA
| | - Pu Chun Ke
- Drug DeliveryDisposition and DynamicsMonash Institute of Pharmaceutical SciencesMonash University381 Royal ParadeParkvilleVIC3052Australia
- Australian Institute for Bioengineering and NanotechnologyThe University of QueenslandBrisbaneQld4072Australia
- The GBA National Institute for Nanotechnology Innovation136 Kaiyuan AvenueGuangzhou510700China
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11
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Goswami DG, Mishra N, Kant R, Agarwal C, Croutch CR, Enzenauer RW, Petrash MJ, Tewari-Singh N, Agarwal R. Pathophysiology and inflammatory biomarkers of sulfur mustard-induced corneal injury in rabbits. PLoS One 2021; 16:e0258503. [PMID: 34637469 PMCID: PMC8509852 DOI: 10.1371/journal.pone.0258503] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Accepted: 09/28/2021] [Indexed: 01/01/2023] Open
Abstract
Sulfur mustard (SM) is a cytotoxic, vesicating, chemical warfare agent, first used in 1917; corneas are particularly vulnerable to SM exposure. They may develop inflammation, ulceration, neovascularization (NV), impaired vision, and partial/complete blindness depending upon the concentration of SM, exposure duration, and bio-physiological conditions of the eyes. Comprehensive in vivo studies have established ocular structural alterations, opacity, NV, and inflammation upon short durations (<4 min) of SM exposure. In this study, detailed analyses of histopathological alterations in corneal structure, keratocytes, inflammatory cells, blood vessels, and expressions of cyclooxygenase (COX)-2, matrix metalloproteinase (MMP)-9, vascular endothelial growth factor (VEGF), and cytokines were performed in New Zealand white rabbits, in a time-dependent manner till 28 days, post longer durations (5 and 7 min) of ocular SM exposure to establish quantifiable endpoints of injury and healing. Results indicated that SM exposure led to duration-dependent increases in corneal thickness, opacity, ulceration, epithelial-stromal separation, and epithelial degradation. Significant increases in NV, keratocyte death, blood vessels, and inflammatory markers (COX-2, MMP-9, VEGF, and interleukin-8) were also observed for both exposure durations compared to the controls. Collectively, these findings would benefit in temporal delineation of mechanisms underlying SM-induced corneal toxicity and provide models for testing therapeutic interventions.
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Affiliation(s)
- Dinesh G. Goswami
- Department of Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, Aurora, Colorado, United States of America
| | - Neha Mishra
- Department of Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, Aurora, Colorado, United States of America
| | - Rama Kant
- Department of Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, Aurora, Colorado, United States of America
| | - Chapla Agarwal
- Department of Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, Aurora, Colorado, United States of America
| | - Claire R. Croutch
- Medical Countermeasures Division, MRIGlobal, Kansas City, Missouri, United States of America
| | - Robert W. Enzenauer
- Department of Ophthalmology, University of Colorado Anschutz Medical Campus, Aurora, Colorado, United States of America
| | - Mark J. Petrash
- Department of Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, Aurora, Colorado, United States of America
- Department of Ophthalmology, University of Colorado Anschutz Medical Campus, Aurora, Colorado, United States of America
| | - Neera Tewari-Singh
- Department of Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, Aurora, Colorado, United States of America
| | - Rajesh Agarwal
- Department of Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, Aurora, Colorado, United States of America
- * E-mail:
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12
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Wu C, Kisel KS, Thangavel MK, Chen Y, Chang K, Tsai M, Chu C, Shen Y, Wu P, Zhang Z, Liu T, Jänis J, Grachova EV, Shakirova JR, Tunik SP, Koshevoy IO, Chou P. Functionalizing Collagen with Vessel-Penetrating Two-Photon Phosphorescence Probes: A New In Vivo Strategy to Map Oxygen Concentration in Tumor Microenvironment and Tissue Ischemia. Adv Sci (Weinh) 2021; 8:e2102788. [PMID: 34414696 PMCID: PMC8529487 DOI: 10.1002/advs.202102788] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Indexed: 06/13/2023]
Abstract
The encapsulation and/or surface modification can stabilize and protect the phosphorescence bio-probes but impede their intravenous delivery across biological barriers. Here, a new class of biocompatible rhenium (ReI ) diimine carbonyl complexes is developed, which can efficaciously permeate normal vessel walls and then functionalize the extravascular collagen matrixes as in situ oxygen sensor. Without protective agents, ReI -diimine complex already exhibits excellent emission yield (34%, λem = 583 nm) and large two-photon absorption cross-sections (σ2 = 300 GM @ 800 nm) in water (pH 7.4). After extravasation, remarkably, the collagen-bound probes further enhanced their excitation efficiency by increasing the deoxygenated lifetime from 4.0 to 7.5 µs, paving a way to visualize tumor hypoxia and tissue ischemia in vivo. The post-extravasation functionalization of extracellular matrixes demonstrates a new methodology for biomaterial-empowered phosphorescence sensing and imaging.
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Affiliation(s)
- Cheng‐Ham Wu
- Department of ChemistryNational Taiwan UniversityTaipei10617Taiwan
| | - Kristina S. Kisel
- Department of ChemistryUniversity of Eastern FinlandJoensuu80101Finland
- St.‐Petersburg State University7/9 Universitetskaya nabSt.‐Petersburg199034Russia
| | | | - Yi‐Ting Chen
- Department of ChemistryNational Taiwan UniversityTaipei10617Taiwan
| | - Kai‐Hsin Chang
- Department of ChemistryNational Taiwan UniversityTaipei10617Taiwan
| | - Ming‐Rung Tsai
- Department of ChemistryNational Taiwan UniversityTaipei10617Taiwan
| | - Chia‐Yu Chu
- Department of DermatologyNational Taiwan University Hospital and National Taiwan University College of MedicineTaipei10002Taiwan
| | - Yu‐Fang Shen
- Department of Bioinformatics and Medical EngineeringAsia UniversityTaichung City41354Taiwan
- 3D Printing Medical Research InstituteAsia UniversityTaichung City41354Taiwan
| | - Pei‐Chun Wu
- Institute of Translational Medicine, Faculty of Health SciencesMinistry of Education Frontiers Science Center for Precision OncologyUniversity of MacauTaipaMacau999078China
| | - Zhiming Zhang
- Institute of Translational Medicine, Faculty of Health SciencesMinistry of Education Frontiers Science Center for Precision OncologyUniversity of MacauTaipaMacau999078China
| | - Tzu‐Ming Liu
- Institute of Translational Medicine, Faculty of Health SciencesMinistry of Education Frontiers Science Center for Precision OncologyUniversity of MacauTaipaMacau999078China
| | - Janne Jänis
- Department of ChemistryUniversity of Eastern FinlandJoensuu80101Finland
| | - Elena V. Grachova
- St.‐Petersburg State University7/9 Universitetskaya nabSt.‐Petersburg199034Russia
| | - Julia R. Shakirova
- St.‐Petersburg State University7/9 Universitetskaya nabSt.‐Petersburg199034Russia
| | - Sergey P. Tunik
- St.‐Petersburg State University7/9 Universitetskaya nabSt.‐Petersburg199034Russia
| | - Igor O. Koshevoy
- Department of ChemistryUniversity of Eastern FinlandJoensuu80101Finland
| | - Pi‐Tai Chou
- Department of ChemistryNational Taiwan UniversityTaipei10617Taiwan
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13
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Liu J, Chen J, Liu H, Zhang K, Zeng Q, Yang S, Jiang Z, Zhang X, Chen T, Li D, Shan H. Bi/Se-Based Nanotherapeutics Sensitize CT Image-Guided Stereotactic Body Radiotherapy through Reprogramming the Microenvironment of Hepatocellular Carcinoma. ACS Appl Mater Interfaces 2021; 13:42473-42485. [PMID: 34474563 DOI: 10.1021/acsami.1c11763] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The particular characteristics of hypoxia, immune suppression in the tumor microenvironment, and the lack of accurate imaging guidance lead to the limited effects of stereotactic body radiotherapy (SBRT) in reducing the recurrence rate and mortality of hepatocellular carcinoma (HCC). This research developed a novel theranostic agent based on Bi/Se nanoparticles (NPs), synthesized by a simple reduction reaction method for in vivo CT image-guided SBRT sensitization in mice. After loading Lenvatinib (Len), the obtained Bi/Se-Len NPs had excellent performance in reversing hypoxia and the immune suppression status of HCC. In vivo CT imaging results uncovered that the radiotherapy (RT) area could be accurately labeled after the injection of Bi/Se-Len NPs. Under Len's unique and robust properties, in vivo treatment was then carried out upon injection of Bi/Se-Len NPs, achieving excellent RT sensitization effects in a mouse HCC model. Comprehensive tests and histological stains revealed that Bi/Se-Len NPs could reshape and normalize tumor blood vessels, reduce the hypoxic situation of the tumor, and upregulate tumor-infiltrating CD4+ and CD8+ T lymphocytes around the tumors. Our work highlights an excellent proposal of Bi/Se-Len NPs as theranostic nanoparticles for image-guided HCC radiotherapy.
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Affiliation(s)
- Jiani Liu
- Center for Interventional Medicine, The Fifth Affiliated Hospital Sun Yat-sen University, Zhuhai, Guangdong Province 519000, P. R. China
- Guangdong Provincial Key Laboratory of Biomedical Imaging and Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, Guangdong Province 519000, P. R. China
- The Cancer Center of The Fifth Affiliated Hospital Sun Yat-sen University, Zhuhai, Guangdong Province 519000, P. R. China
| | - Jiayao Chen
- Center for Interventional Medicine, The Fifth Affiliated Hospital Sun Yat-sen University, Zhuhai, Guangdong Province 519000, P. R. China
- Guangdong Provincial Key Laboratory of Biomedical Imaging and Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, Guangdong Province 519000, P. R. China
| | - Hongxing Liu
- Department of Chemistry, Jinan University, Guangzhou, Guangdong Province, 510632, P. R. China
| | - Ke Zhang
- Center for Interventional Medicine, The Fifth Affiliated Hospital Sun Yat-sen University, Zhuhai, Guangdong Province 519000, P. R. China
- Guangdong Provincial Key Laboratory of Biomedical Imaging and Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, Guangdong Province 519000, P. R. China
| | - Qi Zeng
- The Cancer Center of The Fifth Affiliated Hospital Sun Yat-sen University, Zhuhai, Guangdong Province 519000, P. R. China
| | - Shuai Yang
- The Cancer Center of The Fifth Affiliated Hospital Sun Yat-sen University, Zhuhai, Guangdong Province 519000, P. R. China
| | - Zebo Jiang
- Guangdong Provincial Key Laboratory of Biomedical Imaging and Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, Guangdong Province 519000, P. R. China
| | - Xiaoting Zhang
- Guangdong Provincial Key Laboratory of Biomedical Imaging and Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, Guangdong Province 519000, P. R. China
| | - Tianfeng Chen
- Department of Chemistry, Jinan University, Guangzhou, Guangdong Province, 510632, P. R. China
| | - Dan Li
- Guangdong Provincial Key Laboratory of Biomedical Imaging and Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, Guangdong Province 519000, P. R. China
| | - Hong Shan
- Center for Interventional Medicine, The Fifth Affiliated Hospital Sun Yat-sen University, Zhuhai, Guangdong Province 519000, P. R. China
- Guangdong Provincial Key Laboratory of Biomedical Imaging and Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, Guangdong Province 519000, P. R. China
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14
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Längst N, Adler J, Schweigert O, Kleusberg F, Cruz Santos M, Knauer A, Sausbier M, Zeller T, Ruth P, Lukowski R. Cyclic GMP-Dependent Regulation of Vascular Tone and Blood Pressure Involves Cysteine-Rich LIM-Only Protein 4 (CRP4). Int J Mol Sci 2021; 22:9925. [PMID: 34576086 PMCID: PMC8466836 DOI: 10.3390/ijms22189925] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Revised: 08/09/2021] [Accepted: 08/25/2021] [Indexed: 01/14/2023] Open
Abstract
The cysteine-rich LIM-only protein 4 (CRP4), a LIM-domain and zinc finger containing adapter protein, has been implicated as a downstream effector of the second messenger 3',5'-cyclic guanosine monophosphate (cGMP) pathway in multiple cell types, including vascular smooth muscle cells (VSMCs). VSMCs and nitric oxide (NO)-induced cGMP signaling through cGMP-dependent protein kinase type I (cGKI) play fundamental roles in the physiological regulation of vascular tone and arterial blood pressure (BP). However, it remains unclear whether the vasorelaxant actions attributed to the NO/cGMP axis require CRP4. This study uses mice with a targeted deletion of the CRP4 gene (CRP4 KO) to elucidate whether cGMP-elevating agents, which are well known for their vasorelaxant properties, affect vessel tone, and thus, BP through CRP4. Cinaciguat, a NO- and heme-independent activator of the NO-sensitive (soluble) guanylyl cyclase (NO-GC) and NO-releasing agents, relaxed both CRP4-proficient and -deficient aortic ring segments pre-contracted with prostaglandin F2α. However, the magnitude of relaxation was slightly, but significantly, increased in vessels lacking CRP4. Accordingly, CRP4 KO mice presented with hypotonia at baseline, as well as a greater drop in systolic BP in response to the acute administration of cinaciguat, sodium nitroprusside, and carbachol. Mechanistically, loss of CRP4 in VSMCs reduced the Ca2+-sensitivity of the contractile apparatus, possibly involving regulatory proteins, such as myosin phosphatase targeting subunit 1 (MYPT1) and the regulatory light chain of myosin (RLC). In conclusion, the present findings confirm that the adapter protein CRP4 interacts with the NO-GC/cGMP/cGKI pathway in the vasculature. CRP4 seems to be part of a negative feedback loop that eventually fine-tunes the NO-GC/cGMP axis in VSMCs to increase myofilament Ca2+ desensitization and thereby the maximal vasorelaxant effects attained by (selected) cGMP-elevating agents.
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Affiliation(s)
- Natalie Längst
- Department of Pharmacology, Toxicology and Clinical Pharmacy, Institute of Pharmacy, University of Tuebingen, 72076 Tuebingen, Germany; (N.L.); (J.A.); (F.K.); (M.C.S.); (A.K.); (M.S.)
| | - Julia Adler
- Department of Pharmacology, Toxicology and Clinical Pharmacy, Institute of Pharmacy, University of Tuebingen, 72076 Tuebingen, Germany; (N.L.); (J.A.); (F.K.); (M.C.S.); (A.K.); (M.S.)
| | - Olga Schweigert
- Cardiovascular Systems Medicine and Molecular Translation, University Center of Cardiovascular Science, University Heart & Vascular Center Hamburg, University Medical Center Hamburg-Eppendorf, 20251 Hamburg, Germany; (O.S.); (T.Z.)
- DZHK, German Center for Cardiovascular Research, Partner Site Hamburg/Kiel/Lübeck, 20251 Hamburg, Germany
| | - Felicia Kleusberg
- Department of Pharmacology, Toxicology and Clinical Pharmacy, Institute of Pharmacy, University of Tuebingen, 72076 Tuebingen, Germany; (N.L.); (J.A.); (F.K.); (M.C.S.); (A.K.); (M.S.)
| | - Melanie Cruz Santos
- Department of Pharmacology, Toxicology and Clinical Pharmacy, Institute of Pharmacy, University of Tuebingen, 72076 Tuebingen, Germany; (N.L.); (J.A.); (F.K.); (M.C.S.); (A.K.); (M.S.)
| | - Amelie Knauer
- Department of Pharmacology, Toxicology and Clinical Pharmacy, Institute of Pharmacy, University of Tuebingen, 72076 Tuebingen, Germany; (N.L.); (J.A.); (F.K.); (M.C.S.); (A.K.); (M.S.)
| | - Matthias Sausbier
- Department of Pharmacology, Toxicology and Clinical Pharmacy, Institute of Pharmacy, University of Tuebingen, 72076 Tuebingen, Germany; (N.L.); (J.A.); (F.K.); (M.C.S.); (A.K.); (M.S.)
| | - Tanja Zeller
- Cardiovascular Systems Medicine and Molecular Translation, University Center of Cardiovascular Science, University Heart & Vascular Center Hamburg, University Medical Center Hamburg-Eppendorf, 20251 Hamburg, Germany; (O.S.); (T.Z.)
- DZHK, German Center for Cardiovascular Research, Partner Site Hamburg/Kiel/Lübeck, 20251 Hamburg, Germany
| | - Peter Ruth
- Department of Pharmacology, Toxicology and Clinical Pharmacy, Institute of Pharmacy, University of Tuebingen, 72076 Tuebingen, Germany; (N.L.); (J.A.); (F.K.); (M.C.S.); (A.K.); (M.S.)
| | - Robert Lukowski
- Department of Pharmacology, Toxicology and Clinical Pharmacy, Institute of Pharmacy, University of Tuebingen, 72076 Tuebingen, Germany; (N.L.); (J.A.); (F.K.); (M.C.S.); (A.K.); (M.S.)
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15
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Ahles S, Joris PJ, Plat J. Effects of Berry Anthocyanins on Cognitive Performance, Vascular Function and Cardiometabolic Risk Markers: A Systematic Review of Randomized Placebo-Controlled Intervention Studies in Humans. Int J Mol Sci 2021; 22:ijms22126482. [PMID: 34204250 PMCID: PMC8234025 DOI: 10.3390/ijms22126482] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Revised: 06/09/2021] [Accepted: 06/14/2021] [Indexed: 12/15/2022] Open
Abstract
Supplementation with anthocyanins, which are a type of flavonoids mainly found in various berries, is hypothesized to be a promising approach to lower the risk of developing cognitive decline. The aim of this systematic review was to provide a comprehensive overview of dietary intervention trials describing effects of berry anthocyanins on cognitive performance in humans, while also addressing potential underlying mechanisms. A total of 1197 articles were identified through a systematic search, and 49 studies reporting effects on cognitive performance (n = 18), vascular function (n = 22), or cardiometabolic risk markers (n = 32) were included. Significant improvements were observed on memory, while some of the studies also reported effects on attention and psychomotor speed or executive function. Vascular function markers such as brachial artery flow-mediated vasodilation were also affected and consistent evidence was provided for the beneficial effects of berry anthocyanins on endothelial function. Finally, studies reported improvements in blood pressure, but effects on metabolic risk markers (e.g. carbohydrate and lipid metabolism) were less consistent. In conclusion, this review provides evidence for the beneficial effects of berry anthocyanins on cognitive performance as memory improved. Whether observed anthocyanin-induced improvements in vascular function and blood pressure underlie beneficial effects on cognitive performance warrants further study.
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Affiliation(s)
- Sanne Ahles
- Department of Nutrition and Movement Sciences, School of Nutrition and Translational Research in Metabolism (NUTRIM), Maastricht University, 6200 MD Maastricht, The Netherlands; (S.A.); (P.J.J.)
- BioActor BV, Gaetano Martinolaan 85, 6229 GS Maastricht, The Netherlands
| | - Peter J. Joris
- Department of Nutrition and Movement Sciences, School of Nutrition and Translational Research in Metabolism (NUTRIM), Maastricht University, 6200 MD Maastricht, The Netherlands; (S.A.); (P.J.J.)
| | - Jogchum Plat
- Department of Nutrition and Movement Sciences, School of Nutrition and Translational Research in Metabolism (NUTRIM), Maastricht University, 6200 MD Maastricht, The Netherlands; (S.A.); (P.J.J.)
- Correspondence:
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16
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Ash D, Sudhahar V, Youn SW, Okur MN, Das A, O'Bryan JP, McMenamin M, Hou Y, Kaplan JH, Fukai T, Ushio-Fukai M. The P-type ATPase transporter ATP7A promotes angiogenesis by limiting autophagic degradation of VEGFR2. Nat Commun 2021; 12:3091. [PMID: 34035268 PMCID: PMC8149886 DOI: 10.1038/s41467-021-23408-1] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Accepted: 04/26/2021] [Indexed: 01/05/2023] Open
Abstract
VEGFR2 (KDR/Flk1) signaling in endothelial cells (ECs) plays a central role in angiogenesis. The P-type ATPase transporter ATP7A regulates copper homeostasis, and its role in VEGFR2 signaling and angiogenesis is entirely unknown. Here, we describe the unexpected crosstalk between the Copper transporter ATP7A, autophagy, and VEGFR2 degradation. The functional significance of this Copper transporter was demonstrated by the finding that inducible EC-specific ATP7A deficient mice or ATP7A-dysfunctional ATP7Amut mice showed impaired post-ischemic neovascularization. In ECs, loss of ATP7A inhibited VEGF-induced VEGFR2 signaling and angiogenic responses, in part by promoting ligand-induced VEGFR2 protein degradation. Mechanistically, VEGF stimulated ATP7A translocation from the trans-Golgi network to the plasma membrane where it bound to VEGFR2, which prevented autophagy-mediated lysosomal VEGFR2 degradation by inhibiting autophagic cargo/adapter p62/SQSTM1 binding to ubiquitinated VEGFR2. Enhanced autophagy flux due to ATP7A dysfunction in vivo was confirmed by autophagy reporter CAG-ATP7Amut -RFP-EGFP-LC3 transgenic mice. In summary, our study uncovers a novel function of ATP7A to limit autophagy-mediated degradation of VEGFR2, thereby promoting VEGFR2 signaling and angiogenesis, which restores perfusion recovery and neovascularization. Thus, endothelial ATP7A is identified as a potential therapeutic target for treatment of ischemic cardiovascular diseases.
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Affiliation(s)
- Dipankar Ash
- Vascular Biology Center, Medical College of Georgia at Augusta University, Augusta, GA, USA
| | - Varadarajan Sudhahar
- Vascular Biology Center, Medical College of Georgia at Augusta University, Augusta, GA, USA
- Charlie Norwood Veterans Affairs Medical Center, Augusta, GA, USA
| | - Seock-Won Youn
- Vascular Biology Center, Medical College of Georgia at Augusta University, Augusta, GA, USA
- Department of Physiology and Biophysics, University of Illinois College of Medicine, Chicago, IL, USA
| | - Mustafa Nazir Okur
- Laboratory of Molecular Gerontology, National Institute on Aging, National Institutes of Health, Baltimore, MD, USA
| | - Archita Das
- Vascular Biology Center, Medical College of Georgia at Augusta University, Augusta, GA, USA
| | - John P O'Bryan
- Department of Cell and Molecular Pharmacology and Experimental Therapeutics, Hollings Cancer Center, Medical University of South Carolina, Charleston, SC, USA
- Ralph H. Johnson VA Medical Center, Charleston, SC, USA
| | - Maggie McMenamin
- Vascular Biology Center, Medical College of Georgia at Augusta University, Augusta, GA, USA
- Charlie Norwood Veterans Affairs Medical Center, Augusta, GA, USA
| | - Yali Hou
- Vascular Biology Center, Medical College of Georgia at Augusta University, Augusta, GA, USA
- Charlie Norwood Veterans Affairs Medical Center, Augusta, GA, USA
| | - Jack H Kaplan
- Department of Biochemistry and Molecular Genetics, University of Illinois College of Medicine, Chicago, IL, USA
| | - Tohru Fukai
- Vascular Biology Center, Medical College of Georgia at Augusta University, Augusta, GA, USA.
- Charlie Norwood Veterans Affairs Medical Center, Augusta, GA, USA.
- Departments of Pharmacology and Toxicology, Medical College of Georgia at Augusta University, Augusta, GA, USA.
| | - Masuko Ushio-Fukai
- Vascular Biology Center, Medical College of Georgia at Augusta University, Augusta, GA, USA.
- Department of Medicine (Cardiology), Medical College of Georgia at Augusta University, Augusta, GA, USA.
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17
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Hadriche-Jarraya H, Limam F, Aouani E, Amri M, Mokni M. Vasomodulatory effects of semi-purified fractions of garlic aqueous extract on chick chorioallantoic membrane. Pak J Pharm Sci 2021; 34:943-949. [PMID: 34602417] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Allium sativum (As), commonly known as garlic, has been used for a long time, for its therapeutic effects. Recent studies showed the ability of As to modulate vascular activity. The present study aimed to investigate the vasomodulatory effects of aqueous extract of As and to analyse the molecular nature of the active components. Experiments were performed on chick chorioallantoic membrane. Fractions of garlic were directly injected using micropipette on a high vessel density area. Our results clearly indicated that garlic increased permeability and induced vasodilatation of blood vessels and capillaries. These effects were dose-dependent and had been observed just few minutes after the onset of treatment. The active component responsible of these effects, which had a low molecular weight seems to be of peptide nature and appeared different from Dially Sulfide (DAS) and Dially Disulfide (DADS).
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Affiliation(s)
- Heyfa Hadriche-Jarraya
- Laboratoire de Neurophysiologie Fonctionnelle et Pathologies, Département des Sciences Biologiques, Faculté des Sciences de Tunis. Campus Universitaire El Manar, Tunis, Tunisie
| | - Ferid Limam
- Laboratoire des Substances Bioactives, Centre de Biotechnologie, Technopole Borj-Cedria, Hammam-Lif, Tunisie
| | - Ezzedine Aouani
- Laboratoire des Substances Bioactives, Centre de Biotechnologie, Technopole Borj-Cedria, Hammam-Lif, Tunisie
| | - Mohamed Amri
- Laboratoire de Neurophysiologie Fonctionnelle et Pathologies, Département des Sciences Biologiques, Faculté des Sciences de Tunis. Campus Universitaire El Manar, Tunis, Tunisie
| | - Meherzia Mokni
- Laboratoire de Neurophysiologie Fonctionnelle et Pathologies, Département des Sciences Biologiques, Faculté des Sciences de Tunis. Campus Universitaire El Manar, Tunis, Tunisie
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18
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Oldenburger A, Birk G, Schlepütz M, Broermann A, Stierstorfer B, Pullen SS, Rippmann JF. Modulation of vascular contraction via soluble guanylate cyclase signaling in a novel ex vivo method using rat precision-cut liver slices. Pharmacol Res Perspect 2021; 9:e00768. [PMID: 34014044 PMCID: PMC8135082 DOI: 10.1002/prp2.768] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Revised: 03/09/2021] [Accepted: 03/10/2021] [Indexed: 01/05/2023] Open
Abstract
Fibrotic processes in the liver of non-alcoholic steatohepatitis (NASH) patients cause microcirculatory dysfunction in the organ which increases blood vessel resistance and causes portal hypertension. Assessing blood vessel function in the liver is challenging, necessitating the development of novel methods in normal and fibrotic tissue that allow for drug screening and translation toward pre-clinical settings. Cultures of precision cut liver slices (PCLS) from normal and fibrotic rat livers were used for blood vessel function analysis. Live recording of vessel diameter was used to assess the response to endothelin-1, serotonin and soluble guanylate cyclase (sGC) activation. A cascade of contraction and relaxation events in response to serotonin, endothelin-1, Ketanserin and sGC activity could be established using vessel diameter analysis of rat PCLS. Both the sGC activator BI 703704 and the sGC stimulator Riociguat prevented serotonin-induced contraction in PCLS from naive rats. By contrast, PCLS cultures from the rat CCl4 NASH model were only responsive to the sGC activator, thus establishing that the sGC enzyme is rendered non-responsive to nitric oxide under oxidative stress found in fibrotic livers. The role of the sGC pathway for vessel relaxation of fibrotic liver tissue was identified in our model. The obtained data shows that the inhibitory capacities on vessel contraction of sGC compounds can be translated to published preclinical data. Altogether, this novel ex vivo PCLS method allows for the differentiation of drug candidates and the translation of therapeutic approaches towards the clinical use.
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Affiliation(s)
- Anouk Oldenburger
- CardioMetabolic Diseases ResearchBoehringer Ingelheim Pharma GmbH & Co. KGBiberach a.d. RissGermany
| | - Gerald Birk
- Target Discovery SciencesBoehringer Ingelheim Pharma GmbH & Co. KGBiberach an der RissGermany
| | - Marco Schlepütz
- Immunology and Respiratory Diseases ResearchBoehringer Ingelheim Pharma GmbH & Co. KGBiberach an der RissGermany
| | - Andre Broermann
- CardioMetabolic Diseases ResearchBoehringer Ingelheim Pharma GmbH & Co. KGBiberach a.d. RissGermany
| | - Birgit Stierstorfer
- Target Discovery SciencesBoehringer Ingelheim Pharma GmbH & Co. KGBiberach an der RissGermany
| | - Steven S. Pullen
- CardioMetabolic Diseases ResearchBoehringer Ingelheim Pharmaceuticals, IncRidgefieldCTUSA
| | - Jörg F. Rippmann
- Cancer Immunology+Immune ModulationBoehringer Ingelheim Pharma GmbH & Co. KGBiberach a.d. RissGermany
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19
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Une N, Takano-Kasuya M, Kitamura N, Ohta M, Inose T, Kato C, Nishimura R, Tada H, Miyagi S, Ishida T, Unno M, Kamei T, Gonda K. The anti-angiogenic agent lenvatinib induces tumor vessel normalization and enhances radiosensitivity in hepatocellular tumors. Med Oncol 2021; 38:60. [PMID: 33881631 DOI: 10.1007/s12032-021-01503-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Accepted: 03/23/2021] [Indexed: 12/30/2022]
Abstract
The evaluation of angiogenesis inhibitors requires the analysis of the precise structure and function of tumor vessels. The anti-angiogenic agents lenvatinib and sorafenib are multi-target tyrosine kinase inhibitors that have been approved for the treatment of hepatocellular carcinoma (HCC). However, the different effects on tumor vasculature between lenvatinib and sorafenib are not well understood. In this study, we analyzed the effects of both drugs on vascular structure and function, including vascular normalization, and investigated whether the normalization had a positive effect on a combination therapy with the drugs and radiation using micro X-ray computed tomography with gold nanoparticles as a contrast agent, as well as immunohistochemical analysis and interstitial fluid pressure (IFP) measurement. In mice subcutaneously transplanted with mouse HCC cells, treatment with lenvatinib or sorafenib for 14 days inhibited tumor growth and reduced the tumor vessel volume density. However, analysis of integrated data on vessel density, rates of pericyte-covering and perfused vessels, tumor hypoxia, and IFP measured 4 days after drug treatment showed that treatment with 3 mg/kg of lenvatinib significantly reduced the microvessel density and normalized tumor vessels compared to treatment with 50 mg/kg of sorafenib. These results showed that lenvatinib induced vascular normalization and improved the intratumoral microenvironment in HCC tumors earlier and more effectively than sorafenib. Moreover, such changes increased the radiosensitivity of tumors and enhanced the effect of lenvatinib and radiation combination therapy, suggesting that this combination therapy is a powerful potential application against HCC.
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Affiliation(s)
- Norikazu Une
- Department of Medical Physics, Graduate School of Medicine, Tohoku University, 2-1 Seiryo-machi, Aoba-ku, Sendai, 980-8575, Japan
- Department of Gastroenterological Surgery, Graduate School of Medicine, Tohoku University, 1-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi, 980-8574, Japan
| | - Mayumi Takano-Kasuya
- Department of Medical Physics, Graduate School of Medicine, Tohoku University, 2-1 Seiryo-machi, Aoba-ku, Sendai, 980-8575, Japan
| | - Narufumi Kitamura
- Department of Medical Physics, Graduate School of Medicine, Tohoku University, 2-1 Seiryo-machi, Aoba-ku, Sendai, 980-8575, Japan
| | - Mineto Ohta
- Department of Gastroenterological Surgery, Graduate School of Medicine, Tohoku University, 1-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi, 980-8574, Japan
| | - Tomoya Inose
- Department of Medical Physics, Graduate School of Medicine, Tohoku University, 2-1 Seiryo-machi, Aoba-ku, Sendai, 980-8575, Japan
| | - Chihiro Kato
- Department of Medical Physics, Graduate School of Medicine, Tohoku University, 2-1 Seiryo-machi, Aoba-ku, Sendai, 980-8575, Japan
| | - Ryuichi Nishimura
- Department of Gastroenterological Surgery, Graduate School of Medicine, Tohoku University, 1-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi, 980-8574, Japan
| | - Hiroshi Tada
- Department of Breast and Endocrine Surgical Oncology, Graduate School of Medicine, Tohoku University, 1-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi, 980-8574, Japan
| | - Shigehito Miyagi
- Department of Gastroenterological Surgery, Graduate School of Medicine, Tohoku University, 1-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi, 980-8574, Japan
| | - Takanori Ishida
- Department of Breast and Endocrine Surgical Oncology, Graduate School of Medicine, Tohoku University, 1-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi, 980-8574, Japan
| | - Michiaki Unno
- Department of Gastroenterological Surgery, Graduate School of Medicine, Tohoku University, 1-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi, 980-8574, Japan
| | - Takashi Kamei
- Department of Gastroenterological Surgery, Graduate School of Medicine, Tohoku University, 1-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi, 980-8574, Japan
| | - Kohsuke Gonda
- Department of Medical Physics, Graduate School of Medicine, Tohoku University, 2-1 Seiryo-machi, Aoba-ku, Sendai, 980-8575, Japan.
- International Center for Synchrotron Radiation Innovation Smart (SRIS), Tohoku University, 2-1-1, Katahira, Aoba-ku, Sendai, 980-8577, Japan.
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Sredoja Tisma V, Bulimbasic S, Galesic Ljubanovic D, Galesic K, Morovic-Vergles J, Mitrovic J, Uchida K, Tatzber F, Zarkovic N, Jaganjac M. The Onset of Systemic Oxidative Stress Associated with the Accumulation of Lipid Peroxidation Product Acrolein in the Skin of Patients with Small-Vessel Vasculitis. Molecules 2021; 26:molecules26082344. [PMID: 33920659 PMCID: PMC8073584 DOI: 10.3390/molecules26082344] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Revised: 04/02/2021] [Accepted: 04/13/2021] [Indexed: 12/11/2022] Open
Abstract
Small-vessel vasculitis (SVV) is the inflammation of the vessel wall that can result in hemorrhage and/or ischemia. Among the histological findings in SVV are increased infiltrating neutrophils, which, due to their oxidative burst and myeloperoxidase activity, release excessive reactive oxygen species, triggering a chain reaction of lipid peroxidation and yielding reactive aldehydes such as acrolein. The implication of oxidative stress in the pathogenesis of SVV was studied, focusing on acrolein immunohistochemistry in the affected skin vessels and systemic stress response. Samples from SVV patients and healthy subjects were collected and analyzed for total serum peroxides, total antioxidant capacity, inflammatory and immunological parameters, as well as for the presence of acrolein–protein adducts in the skin tissue specimens. The obtained data showed that systemic redox homeostasis and iron metabolism are altered in SVV patients. Possible biomarkers in the evaluation of oxidative status, disease activity and prevalence were indicated. Furthermore, a strong correlation between the accumulation of acrolein–protein adducts in the skin and the progression of the disease was revealed. Thus, the results of this study demonstrate that SVV is not only associated with systemic oxidative stress but also with tissue-specific oxidative stress that promotes acrolein formation and protein modification correlating with the severity of cutaneous vasculitis.
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Affiliation(s)
- Vesna Sredoja Tisma
- Polyclinic Department of Dermatology and Venereology, Dubrava University Hospital, 10040 Zagreb, Croatia;
| | - Stela Bulimbasic
- Department of Pathology and Cytology, University Hospital Centre Zagreb, 10000 Zagreb, Croatia;
| | - Danica Galesic Ljubanovic
- Department of Pathology, School of Medicine Zagreb, University of Zagreb, 10000 Zagreb, Croatia;
- Department of Nephropathology and Electron Microscopy, Dubrava University Hospital, 10040 Zagreb, Croatia
| | - Kresimir Galesic
- Division of Nephrology, Department of Internal Medicine, Dubrava University Hospital, University of Zagreb School of Medicine, 10040 Zagreb, Croatia;
| | - Jadranka Morovic-Vergles
- Division of Clinical Immunology, Allergology and Rheumatology, Department of Internal Medicine, Dubrava University Hospital, University of Zagreb School of Medicine, 10040 Zagreb, Croatia; (J.M.-V.); (J.M.)
| | - Josko Mitrovic
- Division of Clinical Immunology, Allergology and Rheumatology, Department of Internal Medicine, Dubrava University Hospital, University of Zagreb School of Medicine, 10040 Zagreb, Croatia; (J.M.-V.); (J.M.)
| | - Koji Uchida
- Laboratory of Food and Biodynamics, Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya 464-8601, Japan;
| | | | - Neven Zarkovic
- Laboratory for Oxidative Stress, Division of Molecular Medicine Rudjer Boskovic Institute, 10000 Zagreb, Croatia;
| | - Morana Jaganjac
- Laboratory for Oxidative Stress, Division of Molecular Medicine Rudjer Boskovic Institute, 10000 Zagreb, Croatia;
- Correspondence: ; Tel.: +385-1456-1017
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21
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Chen M, Zhang Y, Wang H, Yang H, Yin W, Xu S, Jiang T, Wang M, Wu F, Yu W. Inhibition of the norepinephrine transporter rescues vascular hyporeactivity to catecholamine in obstructive jaundice. Eur J Pharmacol 2021; 900:174055. [PMID: 33775645 DOI: 10.1016/j.ejphar.2021.174055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Revised: 03/10/2021] [Accepted: 03/17/2021] [Indexed: 11/18/2022]
Abstract
In patients with obstructive jaundice, the cardiovascular system exhibits hypotension and vascular hyporeactivity. Most norepinephrine is taken up through the neuronal norepinephrine transporter (NET), which is implicated in cardiovascular diseases. A previous study demonstrated that pharmacological NET inhibition could increase resting blood pressure. However, the role of NETs in vascular hyporeactivity induced by obstructive jaundice is poorly understood. This study used the NET inhibitor nisoxetine and a rat model of bile duct ligation (BDL) to investigate whether NET is associated with BDL-induced vascular hyporeactivity. Rats were injected with nisoxetine via the tail vein for 7 consecutive days after BDL. Samples of the superior cervical sympathetic ganglion (SCG) and thoracic aortic rings were processed for investigations. Our results showed that NET expression in the SCG was significantly increased after BDL. Nisoxetine prevented the augmentation of NET expression, increased α1-adrenoceptor activation, and enhanced the weakened contractile responses of thoracic aortic rings after BDL. Our study demonstrates that nisoxetine plays a protective role in BDL-induced vascular hyporeactivity through increased α1-adrenoceptor activation in rats.
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Affiliation(s)
- Mo Chen
- Department of Anesthesiology, Eastern Hepatobiliary Surgery Hospital, Naval Medical University, No. 225 Changhai Road, Shanghai, China; Medical College of Soochow University, No. 199 Renai Street, Suzhou, Jiangsu, China
| | - Yan Zhang
- Department of Anesthesiology, Zhoushan Hospital, Wenzhou Medical University, No. 739 Dingshen Road, Zhoushan, Zhejiang, China
| | - Hongqian Wang
- Department of Anesthesiology, Eastern Hepatobiliary Surgery Hospital, Naval Medical University, No. 225 Changhai Road, Shanghai, China
| | - Hao Yang
- Department of Anesthesiology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, No. 160 Pudian Road, Shanghai, China
| | - Wen Yin
- Department of Anesthesiology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, No. 160 Pudian Road, Shanghai, China
| | - Saihong Xu
- Department of Anesthesiology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, No. 160 Pudian Road, Shanghai, China
| | - Tao Jiang
- Department of Anesthesiology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, No. 160 Pudian Road, Shanghai, China
| | - Mansi Wang
- Department of Pathology, Fudan University Shanghai Cancer Center, No. 399 Lingling Road, Shanghai, China
| | - Feixiang Wu
- Department of Intensive Care Medicine, Eastern Hepatobiliary Surgery Hospital, Naval Medical University, No. 225 Changhai Road, Shanghai, China.
| | - Weifeng Yu
- Department of Anesthesiology, Eastern Hepatobiliary Surgery Hospital, Naval Medical University, No. 225 Changhai Road, Shanghai, China; Department of Anesthesiology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, No. 160 Pudian Road, Shanghai, China.
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22
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Georges G, Allard B, Dakkak M, Nourissat G, Febrer G. Appraising 5 years in activity of the largest public Canadian vascular graft bank. J Vasc Surg 2021; 74:972-978. [PMID: 33684476 DOI: 10.1016/j.jvs.2021.02.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Accepted: 02/08/2021] [Indexed: 11/17/2022]
Abstract
BACKGROUND In Canada, tissue distribution is managed by provincial entities. In 2014, Hema-Quebec established a cryopreserved vascular tissue bank accessible to all Canadian hospitals. The objectives of this report were to review the first 5 years of activity of Hema-Quebec's vascular bank and to briefly assess the competitiveness of its products. METHODS Deceased donors, ages 15 to 60, were screened for common blood-borne diseases. Grafts were treated in a triple-antibiotic solution at 35°C before preservation at -100°C. Hema-Quebec's vascular graft records were analyzed from 2014 to 2019 inclusively. RESULTS The average donor age was 35 years old and 78% of donors were men. Overall, 63% of harvested grafts cleared the quality management system. Positive microbial cultures and morphologic defects were the major reasons for graft discard. As such, a total of 60 grafts were delivered between 2016 and 2019 to 8 hospital centers. Moreover, the bank achieved a mean activity increase of 55% per year and Hema-Quebec's homografts were 48% less costly compared with similar homographs from for-profit organizations. CONCLUSIONS Our findings demonstrate that Hema-Quebec has established a viable cryopreserved vascular tissue bank with steady increase in activity and an acceptable graft discard rates and pricing. Based on our findings, we recommend that efforts should be directed to expand the tissue bank graft distribution outside the province of Quebec.
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Affiliation(s)
- Gabriel Georges
- Laval University, Cardiac Surgery Department, Institut Universitaire de Cardiologie et de Pneumologie de Québec (IUCPQ), Quebec City, Canada.
| | | | - Mazen Dakkak
- Héma-Québec, Côte-Vertu Ouest, Saint-Laurent, Canada
| | - Ghislain Nourissat
- Laval University, Vascular Surgery Department, Saint-François d'Assise Hospital, Quebec City, Canada
| | - Guillaume Febrer
- Hôpital du Sacré-Coeur de Montréal, Vascular Surgery Department, Montreal, Canada
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23
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Estronca L, Francisco V, Pitrez P, Honório I, Carvalho L, Vazão H, Blersch J, Rai A, Nissan X, Simon U, Grãos M, Saúde L, Ferreira L. Induced pluripotent stem cell-derived vascular networks to screen nano-bio interactions. Nanoscale Horiz 2021; 6:245-259. [PMID: 33576750 DOI: 10.1039/d0nh00550a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The vascular bioactivity/safety of nanomaterials is typically evaluated by animal testing, which is of low throughput and does not account for biological differences between animals and humans such as ageing, metabolism and disease profiles. The development of personalized human in vitro platforms to evaluate the interaction of nanomaterials with the vascular system would be important for both therapeutic and regenerative medicine. A library of 30 nanoparticle (NP) formulations, in use in imaging, antimicrobial and pharmaceutical applications, was evaluated in a reporter zebrafish model of vasculogenesis and then tested in personalized humanized models composed of human-induced pluripotent stem cell (hiPSC)-derived endothelial cells (ECs) with "young" and "aged" phenotypes in 3 vascular network formats: 2D (in polystyrene dish), 3D (in Matrigel) and in a blood vessel on a chip. As a proof of concept, vascular toxicity was used as the main readout. The results show that the toxicity profile of NPs to hiPSC-ECs was dependent on the "age" of the endothelial cells and vascular network format. hiPSC-ECs were less susceptible to the cytotoxicity effect of NPs when cultured in flow than in static conditions, the protective effect being mediated, at least in part, by glycocalyx. Overall, the results presented here highlight the relevance of in vitro hiPSC-derived vascular systems to screen vascular nanomaterial interactions.
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Affiliation(s)
- Luís Estronca
- Faculty of Medicine, University of Coimbra, 3000-548, Coimbra, Portugal.
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24
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Cooper TT, Sherman SE, Bell GI, Dayarathna T, McRae DM, Ma J, Lagugné-Labarthet F, Pasternak SH, Lajoie GA, Hess DA. Ultrafiltration and Injection of Islet Regenerative Stimuli Secreted by Pancreatic Mesenchymal Stromal Cells. Stem Cells Dev 2021; 30:247-264. [PMID: 33403929 PMCID: PMC10331161 DOI: 10.1089/scd.2020.0206] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Accepted: 01/04/2021] [Indexed: 12/13/2022] Open
Abstract
The secretome of mesenchymal stromal cells (MSCs) is enriched for biotherapeutic effectors contained within and independent of extracellular vesicles (EVs) that may support tissue regeneration as an injectable agent. We have demonstrated that the intrapancreatic injection of concentrated conditioned media (CM) produced by bone marrow MSC supports islet regeneration and restored glycemic control in hyperglycemic mice, ultimately providing a platform to elucidate components of the MSC secretome. Herein, we extend these findings using human pancreas-derived MSC (Panc-MSC) as "biofactories" to enrich for tissue regenerative stimuli housed within distinct compartments of the secretome. Specifically, we utilized 100 kDa ultrafiltration as a simple method to debulk protein mass and to enrich for EVs while concentrating the MSC secretome into an injectable volume for preclinical assessments in murine models of blood vessel and islet regeneration. EV enrichment (EV+) was validated using nanoscale flow cytometry and atomic force microscopy, in addition to the detection of classical EV markers CD9, CD81, and CD63 using label-free mass spectrometry. EV+ CM was predominately enriched with mediators of wound healing and epithelial-to-mesenchymal transition that supported functional regeneration in mesenchymal and nonmesenchymal tissues. For example, EV+ CM supported human microvascular endothelial cell tubule formation in vitro and enhanced the recovery of blood perfusion following intramuscular injection in nonobese diabetic/severe combined immunodeficiency mice with unilateral hind limb ischemia. Furthermore, EV+ CM increased islet number and β cell mass, elevated circulating insulin, and improved glycemic control following intrapancreatic injection in streptozotocin-treated mice. Collectively, this study provides foundational evidence that Panc-MSC, readily propagated from the subculture of human islets, may be utilized for regenerative medicine applications.
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Affiliation(s)
- Tyler T. Cooper
- Department of Physiology and Pharmacology, Western University, London, Canada
- Molecular Medicine Research Laboratories, Robarts Research Institute, London, Canada
- Don Rix Protein Identification Facility, Department of Biochemistry and Western University, London, Canada
| | - Stephen E. Sherman
- Department of Physiology and Pharmacology, Western University, London, Canada
- Molecular Medicine Research Laboratories, Robarts Research Institute, London, Canada
| | - Gillian I. Bell
- Molecular Medicine Research Laboratories, Robarts Research Institute, London, Canada
| | - Thamara Dayarathna
- Molecular Medicine Research Laboratories, Robarts Research Institute, London, Canada
| | | | - Jun Ma
- Molecular Medicine Research Laboratories, Robarts Research Institute, London, Canada
- Don Rix Protein Identification Facility, Department of Biochemistry and Western University, London, Canada
| | | | - Stephen H. Pasternak
- Molecular Medicine Research Laboratories, Robarts Research Institute, London, Canada
| | - Gilles A. Lajoie
- Don Rix Protein Identification Facility, Department of Biochemistry and Western University, London, Canada
| | - David A. Hess
- Department of Physiology and Pharmacology, Western University, London, Canada
- Molecular Medicine Research Laboratories, Robarts Research Institute, London, Canada
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25
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Zabroski IO, Nugent MA. Lipid Raft Association Stabilizes VEGF Receptor 2 in Endothelial Cells. Int J Mol Sci 2021; 22:ijms22020798. [PMID: 33466887 PMCID: PMC7830256 DOI: 10.3390/ijms22020798] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2020] [Revised: 01/04/2021] [Accepted: 01/06/2021] [Indexed: 12/12/2022] Open
Abstract
The binding of vascular endothelial growth factor A (VEGF) to VEGF receptor-2 (VEGFR-2) stimulates angiogenic signaling. Lipid rafts are cholesterol-dense regions of the plasma membrane that serve as an organizational platform for biomolecules. Although VEGFR2 has been shown to colocalize with lipid rafts to regulate its activation, the effect of lipid rafts on non-activated VEGFR2 has not been explored. Here, we characterized the involvement of lipid rafts in modulating the stability of non-activated VEGFR2 in endothelial cells using raft disrupting agents: methyl-β-cyclodextrin, sphingomyelinase and simvastatin. Disrupting lipid rafts selectively decreased the levels of non-activated VEGFR2 as a result of increased lysosomal degradation. The decreased expression of VEGFR2 translated to reduced VEGF-activation of the extracellular signal-regulated protein kinases (ERK). Overall, our results indicate that lipid rafts stabilize VEGFR2 and its associated signal transduction activities required for angiogenesis. Thus, modulation of lipid rafts may provide a means to regulate the sensitivity of endothelial cells to VEGF stimulation. Indeed, the ability of simvastatin to down regulate VEGFR2 and inhibit VEGF activity suggest a potential mechanism underlying the observation that this drug improves outcomes in the treatment of certain cancers.
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Roumeliotis S, Roumeliotis A, Dounousi E, Eleftheriadis T, Liakopoulos V. Vitamin K for the Treatment of Cardiovascular Disease in End-Stage Renal Disease Patients: Is there Hope? Curr Vasc Pharmacol 2021; 19:77-90. [PMID: 32196451 DOI: 10.2174/1570161118666200320111745] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2019] [Revised: 02/24/2020] [Accepted: 02/25/2020] [Indexed: 01/07/2023]
Abstract
In Chronic Kidney Disease, vascular calcification (VC) is highly prevalent even at early stages and is gradually enhanced, along with disease progression to End-Stage Renal Disease (ESRD). The calcification pattern in uremia includes all types of mineralization and contributes to the heavy cardiovascular (CV) burden that is common in these patients. Ectopic mineralization is the result of the imbalance between inhibitors and promoters of vascular calcification, with the latter overwhelming the former. The most powerful, natural inhibitor of calcification is Matrix Gla Protein (MGP), a small vitamin K dependent protein, secreted by chondrocytes and vascular smooth muscle cells. In uremia, MGP was reported as the only molecule able to reverse VC by "sweeping" calcium and hydroxyapatite crystals away from the arterial wall. To become biologically active, this protein needs to undergo carboxylation and phosphorylation, reactions highly dependent on vitamin K status. The inactive form of MGP reflects the deficiency of vitamin K and has been associated with CV events and mortality in ESRD patients. During the past decade, vitamin K status has emerged as a novel risk factor for vascular calcification and CV disease in various populations, including dialysis patients. This review presents evidence regarding the association between vitamin K and CV disease in ESRD patients, which are prone to atherosclerosis and atheromatosis.
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Affiliation(s)
- Stefanos Roumeliotis
- Division of Nephrology and Hypertension, 1st Department of Internal Medicine, AHEPA Hospital, Medical School, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Athanasios Roumeliotis
- Division of Nephrology and Hypertension, 1st Department of Internal Medicine, AHEPA Hospital, Medical School, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Evangelia Dounousi
- Department of Nephrology, Medical School, University Hospital of Ioannina, Ioannina, Greece
| | | | - Vassilios Liakopoulos
- Division of Nephrology and Hypertension, 1st Department of Internal Medicine, AHEPA Hospital, Medical School, Aristotle University of Thessaloniki, Thessaloniki, Greece
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McGarr GW, Muia CM, Saci S, Fujii N, Kenny GP. K Ca channels are major contributors to ATP-induced cutaneous vasodilation in healthy older adults. Microvasc Res 2020; 133:104096. [PMID: 33058899 DOI: 10.1016/j.mvr.2020.104096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2020] [Revised: 08/30/2020] [Accepted: 10/08/2020] [Indexed: 11/19/2022]
Abstract
OBJECTIVE To examine the contributions of calcium-activated K+ (KCa) channels and nitric oxide synthase (NOS) to adenosine triphosphate (ATP)-induced cutaneous vasodilation in healthy older adults. METHODS In eleven older adults (69 ± 2 years, 5 females), cutaneous vascular conductance, normalized to maximum vasodilation (%CVCmax) was assessed at four dorsal forearm skin sites that were continuously perfused with either 1) lactated Ringer solution (Control), 2) 50 mM tetraethylammonium (TEA, KCa channel blocker), 3) 10 mM Nω-nitro-L-arginine (L-NNA, NOS inhibitor), or 4) combined 50 mM TEA +10 mM L-NNA, via microdialysis. Local skin temperature was fixed at 33 °C at all sites with local heaters throughout the protocol while the cutaneous vasodilator response was assessed during coadministration of ATP (0.03, 0.3, 3, 30, 300 mM; 20 min per dose), followed by 50 mM sodium nitroprusside and local skin heating to 43 °C to achieve maximum vasodilation (20-30 min). RESULTS Blockade of KCa channels blunted %CVCmax relative to Control from 0.3 to 300 mM ATP (All P < 0.05). A similar response was observed for the combined KCa channel blockade and NOS inhibition site from 3 to 300 mM ATP (All P < 0.05). Conversely, NOS inhibition alone did not influence %CVCmax across all ATP doses (All P > 0.05). CONCLUSION In healthy older adults, KCa channels play an important role in modulating ATP-induced cutaneous vasodilation, while the NOS contribution to this response is negligible.
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Affiliation(s)
- Gregory W McGarr
- Human and Environmental Physiology Research Unit, School of Human Kinetics, University of Ottawa, Ottawa, Ontario, Canada
| | - Caroline M Muia
- Human and Environmental Physiology Research Unit, School of Human Kinetics, University of Ottawa, Ottawa, Ontario, Canada
| | - Samah Saci
- Human and Environmental Physiology Research Unit, School of Human Kinetics, University of Ottawa, Ottawa, Ontario, Canada
| | - Naoto Fujii
- Human and Environmental Physiology Research Unit, School of Human Kinetics, University of Ottawa, Ottawa, Ontario, Canada; Faculty of Health and Sport Sciences, University of Tsukuba, Tsukuba City, Japan
| | - Glen P Kenny
- Human and Environmental Physiology Research Unit, School of Human Kinetics, University of Ottawa, Ottawa, Ontario, Canada.
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Shkirkova K, Lamorie-Foote K, Connor M, Patel A, Barisano G, Baertsch H, Liu Q, Morgan TE, Sioutas C, Mack WJ. Effects of ambient particulate matter on vascular tissue: a review. J Toxicol Environ Health B Crit Rev 2020; 23:319-350. [PMID: 32972334 PMCID: PMC7758078 DOI: 10.1080/10937404.2020.1822971] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Fine and ultra-fine particulate matter (PM) are major constituents of urban air pollution and recognized risk factors for cardiovascular diseases. This review examined the effects of PM exposure on vascular tissue. Specific mechanisms by which PM affects the vasculature include inflammation, oxidative stress, actions on vascular tone and vasomotor responses, as well as atherosclerotic plaque formation. Further, there appears to be a greater PM exposure effect on susceptible individuals with pre-existing cardiovascular conditions.
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Affiliation(s)
| | - Krista Lamorie-Foote
- Zilkha Neurogenetic Institute, University of Southern California
- Keck School of Medicine, University of Southern California
| | - Michelle Connor
- Zilkha Neurogenetic Institute, University of Southern California
- Keck School of Medicine, University of Southern California
| | - Arati Patel
- Zilkha Neurogenetic Institute, University of Southern California
- Keck School of Medicine, University of Southern California
| | | | - Hans Baertsch
- Zilkha Neurogenetic Institute, University of Southern California
- Keck School of Medicine, University of Southern California
| | - Qinghai Liu
- Zilkha Neurogenetic Institute, University of Southern California
| | - Todd E. Morgan
- Leonard Davis School of Gerontology, University of Southern California
| | - Constantinos Sioutas
- Department of Civil and Environmental Engineering, Viterbi School of Engineering, University of Southern California
| | - William J. Mack
- Zilkha Neurogenetic Institute, University of Southern California
- Leonard Davis School of Gerontology, University of Southern California
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Abstract
We present the first evidence for vascular regulation driving fMRI signals in specific functional brain networks. Using concurrent neuronal and vascular stimuli, we collected 30 BOLD fMRI datasets in 10 healthy individuals: a working memory task, flashing checkerboard stimulus, and CO2 inhalation challenge were delivered in concurrent but orthogonal paradigms. The resulting imaging data were averaged together and decomposed using independent component analysis, and three "neuronal networks" were identified as demonstrating maximum temporal correlation with the neuronal stimulus paradigms: Default Mode Network, Task Positive Network, and Visual Network. For each of these, we observed a second network component with high spatial overlap. Using dual regression in the original 30 datasets, we extracted the time-series associated with these network pairs and calculated the percent of variance explained by the neuronal or vascular stimuli using a normalized R2 parameter. In each pairing, one network was dominated by the appropriate neuronal stimulus, and the other was dominated by the vascular stimulus as represented by the end-tidal CO2 time-series recorded in each scan. We acquired a second dataset in 8 of the original participants, where no CO2 challenge was delivered and CO2 levels fluctuated naturally with breathing variations. Although splitting of functional networks was not robust in these data, performing dual regression with the network maps from the original analysis in this new dataset successfully replicated our observations. Thus, in addition to responding to localized metabolic changes, the brain's vasculature may be regulated in a coordinated manner that mimics (and potentially supports) specific functional brain networks. Multi-modal imaging and advances in fMRI acquisition and analysis could facilitate further study of the dual nature of functional brain networks. It will be critical to understand network-specific vascular function, and the behavior of a coupled vascular-neural network, in future studies of brain pathology.
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Affiliation(s)
- Molly G Bright
- Department of Physical Therapy and Human Movement Science, Feinberg School of Medicine, Northwestern University, Chicago, IL, 60611, USA; Department of Biomedical Engineering, McCormick School of Engineering and Applied Sciences, Northwestern University, Evanston, IL, 60201, USA.
| | - Joseph R Whittaker
- Cardiff University Brain Research Imaging Centre (CUBRIC), School of Physics and Astronomy, Cardiff University, Cardiff, CF24 3AA, United Kingdom
| | - Ian D Driver
- Cardiff University Brain Research Imaging Centre (CUBRIC), School of Psychology, Cardiff University, Cardiff, CF10 3AT, United Kingdom
| | - Kevin Murphy
- Cardiff University Brain Research Imaging Centre (CUBRIC), School of Physics and Astronomy, Cardiff University, Cardiff, CF24 3AA, United Kingdom
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Tan H, Yin T, Deng Y, He L, Li F, Wang Y. [Mechanisms of Yiqihuoxue herb Naoluoxintong promotes cerebral vascular regeneration in rats with cerebral ischemia syndrome of Qi deficiency accompanied by blood stasis]. Xi Bao Yu Fen Zi Mian Yi Xue Za Zhi 2020; 36:712-718. [PMID: 32958128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Objective To investigate the effect of Yiqihuoxue herb Naoluoxintong on cerebral vascular regeneration in rats of middle cerebral artery occlusion-reperfusion(MCAO-R)experimental model with Qi deficiency and blood stasis syndrome, and explore the possible mechanisms. Methods A total of 60 SD rats were randomly divided into a control group, a model group and three Naoluoxintong-treated groups [(1 200, 800 and 400 mg/(kg.d)], with 12 rats each. Except for the control group, the other groups were treated with modified suture method combined with multi-factor compound simulation to establish the models with both MCAO-R and syndrome of Qi deficiency accompanied by blood stasis. Neural functional deficit, blood stasis syndrome and Qi deficiency syndrome were scored by quantitative criteria for biological characteristics score. The regional cerebral blood flow (rCBF) was dynamically monitored with laser Doppler scanning. HE staining was used to observe the pathological changes of brain tissue. The mRNA expression levels of Wnt5a, glycogen synthase kinase-3β (GSK-3β) were determined by real-time fluorescent quantitative PCR, and the protein expression levels of β-catenin, vascular endothelial growth factor (VEGF), AngII in the rat brain tissue were detected by Western blotting. Results Naoluoxintong improved neural functional in the model rats, reduced the scores of neural functional deficit, blood stasis syndrome and Qi deficiency syndrome, and restored rCBF simultaneously. Meanwhile, Naoluoxintong high- and middle-dose groups were better than any other model groups in terms of pathological changes, and the up-regulation of Wnt5a mRNA expression in these two groups was the most obvious. However, it had no significant effect on GSK3β mRNA in the model rats. Expression levels of β-catenin, VEGF, AngII protein were obviously up-regulated in Naoluoxintong high- and middle-dose groups. Conclusion Naoluoxintong can improve the rCBF with the aid of promoting cerebral vascular regeneration, which might be related to high expression of pro-angiogenic factors that are affected by Wnt signal path activation.
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Affiliation(s)
- Hui Tan
- Ministry-of-Education Key Laboratory of Xin'an Medicine, Anhui University of Chinese Medicine, Hefei 230012, China
| | - Tingting Yin
- Ministry-of-Education Key Laboratory of Xin'an Medicine, Anhui University of Chinese Medicine, Hefei 230012, China. *Corresponding author, E-mail:
| | - Yong Deng
- Ministry-of-Education Key Laboratory of Xin'an Medicine, Anhui University of Chinese Medicine, Hefei 230012, China
| | - Ling He
- Ministry-of-Education Key Laboratory of Xin'an Medicine, Anhui University of Chinese Medicine, Hefei 230012, China
| | - Feng Li
- Ministry-of-Education Key Laboratory of Xin'an Medicine, Anhui University of Chinese Medicine, Hefei 230012, China
| | - Yufeng Wang
- Ministry-of-Education Key Laboratory of Xin'an Medicine, Anhui University of Chinese Medicine, Hefei 230012, China
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Yamashita Y, Wang L, Nakamura A, Nanba F, Saito S, Toda T, Nakagawa J, Ashida H. Black soybean improves the vascular function through an increase in nitric oxide and a decrease in oxidative stress in healthy women. Arch Biochem Biophys 2020; 688:108408. [PMID: 32470460 DOI: 10.1016/j.abb.2020.108408] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2020] [Revised: 05/06/2020] [Accepted: 05/09/2020] [Indexed: 01/07/2023]
Abstract
Vascular dysfunction and injurious stimuli such as oxidative stress is closely related to the risk of cardiovascular diseases (CVD). Dietary polyphenols is reported to exert the beneficial effects on reducing the risk of CVD. Black soybean is rich in polyphenols, including isoflavones, anthocyanidins and flavan-3-ols, and its prevention effects on CVD risk were reported in the animal experiments. In this study, we investigated the effect of black soybean consumption on the vascular function and oxidative stress associating with the polyphenol concentrations in healthy women. Lowered vascular age was observed in 33 out of 44 volunteers who completed the 8-week trial. It was observed that improvement of the vascular stiffness, increasing in the urinary NO2 and NO3 level, and decreasing in the oxidative stress markers, 8-hydroxy-2'-deoxyguanosine, hexanoyl-lysine and myeloperoxidase. In addition, concentration of 12 polyphenols in black soybean increased in the plasma and urine. Increased concentration of polyphenols would be involved in the decreased oxidative stress. Thus, black soybean consumption improved the vascular function through an increase in nitric oxide and a decrease in oxidative stress accompanied by increasing the polyphenol concentrations in healthy women.
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Affiliation(s)
- Yoko Yamashita
- Department of Agrobioscience, Graduate School of Agricultural Science, Kobe University, 1-1, Rokkodai-cho, Nada-ku, Kobe, 657-8501, Japan.
| | - Liuqing Wang
- Department of Agrobioscience, Graduate School of Agricultural Science, Kobe University, 1-1, Rokkodai-cho, Nada-ku, Kobe, 657-8501, Japan
| | - Asuka Nakamura
- Department of Agrobioscience, Graduate School of Agricultural Science, Kobe University, 1-1, Rokkodai-cho, Nada-ku, Kobe, 657-8501, Japan
| | - Fumio Nanba
- Fujicco Co. Ltd, Research Development, 6-13-4, Minatojima-Nakamachi, Chuo-Ku, Kobe, 650-8558, Japan
| | - Shizuka Saito
- Fujicco Co. Ltd, Research Development, 6-13-4, Minatojima-Nakamachi, Chuo-Ku, Kobe, 650-8558, Japan
| | - Toshiya Toda
- Fujicco Co. Ltd, Research Development, 6-13-4, Minatojima-Nakamachi, Chuo-Ku, Kobe, 650-8558, Japan
| | - Junichi Nakagawa
- Nakagawa Clinic, 3-15-4, Higashisonoda-cho, Amagasaki, 661-0953, Japan
| | - Hitoshi Ashida
- Department of Agrobioscience, Graduate School of Agricultural Science, Kobe University, 1-1, Rokkodai-cho, Nada-ku, Kobe, 657-8501, Japan
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Suttorp CM, van Rheden REM, van Dijk NWM, Helmich MPAC, Kuijpers-Jagtman AM, Wagener FADTG. Heme Oxygenase Protects against Placental Vascular Inflammation and Abortion by the Alarmin Heme in Mice. Int J Mol Sci 2020; 21:ijms21155385. [PMID: 32751152 PMCID: PMC7432719 DOI: 10.3390/ijms21155385] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Revised: 07/25/2020] [Accepted: 07/27/2020] [Indexed: 12/16/2022] Open
Abstract
Both infectious as non-infectious inflammation can cause placental dysfunction and pregnancy complications. During the first trimester of human gestation, when palatogenesis takes place, intrauterine hematoma and hemorrhage are common phenomena, causing the release of large amounts of heme, a well-known alarmin. We postulated that exposure of pregnant mice to heme during palatogenesis would initiate oxidative and inflammatory stress, leading to pathological pregnancy, increasing the incidence of palatal clefting and abortion. Both heme oxygenase isoforms (HO-1 and HO-2) break down heme, thereby generating anti-oxidative and -inflammatory products. HO may thus counteract these heme-induced injurious stresses. To test this hypothesis, we administered heme to pregnant CD1 outbred mice at Day E12 by intraperitoneal injection in increasing doses: 30, 75 or 150 μmol/kg body weight (30H, 75H or 150H) in the presence or absence of HO-activity inhibitor SnMP from Day E11. Exposure to heme resulted in a dose-dependent increase in abortion. At 75H half of the fetuses where resorbed, while at 150H all fetuses were aborted. HO-activity protected against heme-induced abortion since inhibition of HO-activity aggravated heme-induced detrimental effects. The fetuses surviving heme administration demonstrated normal palatal fusion. Immunostainings at Day E16 demonstrated higher numbers of ICAM-1 positive blood vessels, macrophages and HO-1 positive cells in placenta after administration of 75H or SnMP + 30H. Summarizing, heme acts as an endogenous “alarmin” during pregnancy in a dose-dependent fashion, while HO-activity protects against heme-induced placental vascular inflammation and abortion.
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Affiliation(s)
- Christiaan M. Suttorp
- Department of Dentistry—Orthodontics and Craniofacial Biology, Radboud University Medical Center, 6525 EX Nijmegen, The Netherlands; (C.M.S.); (R.E.M.v.R.); (N.W.M.v.D.); (M.P.A.C.H.)
- Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, 6525 GA Nijmegen, The Netherlands
| | - René E. M. van Rheden
- Department of Dentistry—Orthodontics and Craniofacial Biology, Radboud University Medical Center, 6525 EX Nijmegen, The Netherlands; (C.M.S.); (R.E.M.v.R.); (N.W.M.v.D.); (M.P.A.C.H.)
| | - Natasja W. M. van Dijk
- Department of Dentistry—Orthodontics and Craniofacial Biology, Radboud University Medical Center, 6525 EX Nijmegen, The Netherlands; (C.M.S.); (R.E.M.v.R.); (N.W.M.v.D.); (M.P.A.C.H.)
| | - Maria P. A. C. Helmich
- Department of Dentistry—Orthodontics and Craniofacial Biology, Radboud University Medical Center, 6525 EX Nijmegen, The Netherlands; (C.M.S.); (R.E.M.v.R.); (N.W.M.v.D.); (M.P.A.C.H.)
| | - Anne Marie Kuijpers-Jagtman
- Department of Orthodontics, University of Groningen and University Medical Center Groningen, 9713 GZ Groningen, The Netherlands;
- Department of Orthodontics and Dentofacial Orthopedics, University of Bern, CH-3010 Bern, Switzerland
- Faculty of Dentistry, Universitas Indonesia, Jakarta ID-10430, Indonesia
| | - Frank A. D. T. G. Wagener
- Department of Dentistry—Orthodontics and Craniofacial Biology, Radboud University Medical Center, 6525 EX Nijmegen, The Netherlands; (C.M.S.); (R.E.M.v.R.); (N.W.M.v.D.); (M.P.A.C.H.)
- Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, 6525 GA Nijmegen, The Netherlands
- Correspondence: ; Tel.: +31-24-36-18824
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Lambert O, Couchoud C, Metzger M, Choukroun G, Jacquelinet C, Mercadal L. Effects of the dialysate calcium concentrations and mineral bone disease treatments on mortality in The French Renal Epidemiology and Information Network (REIN) registry. PLoS One 2020; 15:e0235135. [PMID: 32628733 PMCID: PMC7337343 DOI: 10.1371/journal.pone.0235135] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Accepted: 06/09/2020] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND In patients on hemodialysis (HD), the various chemical elements in the dialysate may influence survival rates. In particular, calcium modifies mineral and bone metabolism and the vascular calcification rate. We studied the influence of the dialysate calcium concentration and the treatments prescribed for mineral bone disease (MBD) on survival. METHODS All patients in REIN having initiated HD from 2010 to 2013 were classified according to their exposure to the different dialysate calcium concentrations in their dialysis unit. Data on the individual patients' treatments for MBD were extracted from the French national health database. Cox proportional hazard models were used to estimate mortality hazard ratios (HR) associated with time-dependent exposure to dialysate calcium concentrations and MBD therapies, adjusted for comorbidities, laboratory and technical data. RESULTS Dialysate calcium concentration of 1.5 mmol/L was used by 81% of the dialysis centers in 2010 and in 83% in 2014. Most centers were using several formulas in up to 78% for 3 formulas in 2010 to 86% in 2014. In full adjusted Cox survival analyses, the percentage of calcium >1.5 mmol/L and <1.5 mmol/l by center and the number of formula used per center were not associated with survival. Depending on the daily dose used, the MBD therapies were associated with survival improvement for calcium, native vitamin D, active vitamin D, sevelamer, lanthanum and cinacalcet in the second and third tertiles of dose. CONCLUSION No influence of the dialysate calcium concentration was evidenced on survival whereas all MBD therapies were associated with a survival improvement depending on the daily dose used.
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Affiliation(s)
- Oriane Lambert
- CESP, Centre for Research in Epidemiology and Population Health, Univ Paris-Saclay, Univ Paris Sud, UVSQ, INSERM UMRS, Villejuif, France
| | | | - Marie Metzger
- CESP, Centre for Research in Epidemiology and Population Health, Univ Paris-Saclay, Univ Paris Sud, UVSQ, INSERM UMRS, Villejuif, France
| | - Gabriel Choukroun
- Nephrology, Dialysis & Transplantation Department, CHU Amiens, INSERM UMR, Jules Verne University of Picardie, Amiens, France
| | - Christian Jacquelinet
- CESP, Centre for Research in Epidemiology and Population Health, Univ Paris-Saclay, Univ Paris Sud, UVSQ, INSERM UMRS, Villejuif, France
| | - Lucile Mercadal
- CESP, Centre for Research in Epidemiology and Population Health, Univ Paris-Saclay, Univ Paris Sud, UVSQ, INSERM UMRS, Villejuif, France
- Nephrology Department, Pitié-Salpêtrière Hospital, AP-HP, Paris, France
- * E-mail:
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Hampton T. Insulin Given With DPP4 Inhibitors Might Protect Blood Vessels in Patients With Diabetes. JAMA 2020; 324:15-16. [PMID: 32633786 DOI: 10.1001/jama.2020.10110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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Watanabe T, Sato K. Roles of the kisspeptin/GPR54 system in pathomechanisms of atherosclerosis. Nutr Metab Cardiovasc Dis 2020; 30:889-895. [PMID: 32409274 DOI: 10.1016/j.numecd.2020.02.017] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Revised: 11/11/2019] [Accepted: 02/28/2020] [Indexed: 12/11/2022]
Abstract
AIMS Kisspeptin-10 (KP-10), a potent vasoconstrictor and inhibitor of angiogenesis, and its receptor, GPR54, have currently received much attention with respect to atherosclerosis, since both KP-10 and GPR54 are expressed at high levels in atheromatous plaques and restenotic lesions after wire-injury. The present review introduces the emerging roles of the KP-10/GPR54 system in atherosclerosis. DATA SYNTHESIS KP-10 suppresses migration and proliferation of human umbilical vein endothelial cells (HUVECs), and induces senescence in HUVECs. KP-10 increases adhesion of human monocytes to HUVECs. KP-10 also stimulates expression of interleukin-6, tumor necrosis factor-α, monocyte chemotactic protein-1, intercellular adhesion molecule-1, vascular cell adhesion molecule-1, and E-selectin genes in HUVECs. KP-10 enhances oxidized low-density lipoprotein-induced foam cell formation associated with upregulation of CD36 and acyl-coenzyme A: cholesterol acyltransferase-1 in human monocyte-derived macrophages. In human aortic smooth muscle cells, KP-10 suppresses angiotensin II-induced migration and proliferation, however, it enhances apoptosis and activities of matrix metalloproteinase (MMP)-2 and MMP-9 by upregulation of extracellular signal-regulated kinase 1/2, p38, Bax, and caspase-3. Four-week-infusion of KP-10 into Apoe-/- mice accelerates development of aortic atherosclerotic lesions with increased monocyte/macrophage infiltration and vascular inflammation, also, it decreases intraplaque vascular smooth muscle cell content. Proatherosclerotic effects of endogenous and exogenous KP-10 were completely attenuated upon infusion of P234, a GPR54 antagonist, in Apoe-/- mice. CONCLUSION These findings suggest that KP-10 may contribute to acceleration of progression and to the instability of atheromatous plaques, leading to rupture of plaques. This GPR54 antagonist may be useful for the prevention and treatment of atherosclerosis. Thus, the KP-10/GPR54 system may serve as a novel therapeutic target for atherosclerotic diseases.
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Affiliation(s)
- Takuya Watanabe
- Laboratory of Cardiovascular Medicine, Tokyo University of Pharmacy and Life Sciences, Tokyo, Japan; Department of Internal Medicine, Ushioda General Hospital/Clinic, Yokohama, Japan.
| | - Kengo Sato
- Laboratory of Cardiovascular Medicine, Tokyo University of Pharmacy and Life Sciences, Tokyo, Japan; Division of Laboratory and Transfusion Medicine, Hokkaido University Hospital, Sapporo, Japan
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Lénárt K, Pap A, Pórszász R, V. Oláh A, Fésüs L, Mádi A. Transglutaminase 2 Has Metabolic and Vascular Regulatory Functions Revealed by In Vivo Activation of Alpha1-Adrenergic Receptor. Int J Mol Sci 2020; 21:E3865. [PMID: 32485850 PMCID: PMC7312910 DOI: 10.3390/ijms21113865] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Revised: 05/20/2020] [Accepted: 05/27/2020] [Indexed: 12/14/2022] Open
Abstract
The multifunctional tissue transglutaminase has been demonstrated to act as α1-adrenergic receptor-coupled G protein with GTPase activity in several cell types. To explore further the pathophysiological significance of this function we investigated the in vivo effects of the α1-adrenergic receptor agonist phenylephrine comparing responses in wild type and TG2-/- mice. Injection of phenylephrine, but not a beta3-adrenergic agonist (CL-316,243), resulted in the long-term decline of the respiratory exchange ratio and lower lactate concentration in TG2-/- mice indicating they preferred to utilize fatty acids instead of glucose as fuels. Measurement of tail blood pressure revealed that the vasoconstrictive effect of phenylephrine was milder in TG2-/- mice leading to lower levels of lactate dehydrogenase (LDH) isoenzymes in blood. LDH isoenzyme patterns indicated more damage in lung, liver, kidney, skeletal, and cardiac muscle of wild type mice; the latter was confirmed by a higher level of heart-specific CK-MB. Our data suggest that TG2 as an α1-adrenergic receptor-coupled G protein has important regulatory functions in alpha1-adrenergic receptor-mediated metabolic processes and vascular functions.
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Affiliation(s)
- Kinga Lénárt
- Department of Biochemistry and Molecular Biology, University of Debrecen, H-4032 Debrecen, Hungary; (K.L.); (A.P.); (L.F.)
- Doctoral School of Molecular Cell and Immune Biology, University of Debrecen, H-4032 Debrecen, Hungary
| | - Attila Pap
- Department of Biochemistry and Molecular Biology, University of Debrecen, H-4032 Debrecen, Hungary; (K.L.); (A.P.); (L.F.)
| | - Róbert Pórszász
- Department of Pharmacology and Pharmacotherapy, University of Debrecen, H-4032 Debrecen, Hungary;
| | - Anna V. Oláh
- Department of Laboratory Medicine, University of Debrecen, H-4032 Debrecen, Hungary;
| | - László Fésüs
- Department of Biochemistry and Molecular Biology, University of Debrecen, H-4032 Debrecen, Hungary; (K.L.); (A.P.); (L.F.)
| | - András Mádi
- Department of Biochemistry and Molecular Biology, University of Debrecen, H-4032 Debrecen, Hungary; (K.L.); (A.P.); (L.F.)
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Wang J, Zhang XH, Xu X, Zhu Q, Yao B, Liang S, Chen Z, Wang Y, He MF, Wu M. Pro-angiogenic activity of Tongnao decoction on HUVECs in vitro and zebrafish in vivo. J Ethnopharmacol 2020; 254:112737. [PMID: 32147480 DOI: 10.1016/j.jep.2020.112737] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Revised: 02/16/2020] [Accepted: 03/02/2020] [Indexed: 06/10/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Tongnao Decoction (TND) is a Chinese decoction approved and used in Jiangsu Province Hospital for the treatment of ischemic stroke. It shows conclusive efficiency in the improvement of neurologic impairment and activities of daily living of the patients. AIM OF THE STUDY Recently, angiogenesis has been recognized as a potential therapeutic strategy for treating cerebral ischemia. This study was aimed to provide comprehensive evidence for the pro-angiogenic effect of TND and characterize the underlying mechanism. MATERIALS AND METHODS We firstly established the chemical fingerprinting of TND. Then, the in vitro pro-angiogenic activities of TND were tested on human umbilical vein endothelial cells (HUVECs) through cell viability, wound healing and tube formation assays. The in vivo pro-angiogenic effects were evaluated on transgenic zebrafish embryos [Tg (fli-1: EGFP)] through the formation of intersegmental vessels (ISVs), subintestinal vessels (SIVs) and central arteries (CtAs). Lastly, the potential mechanisms of TND were analyzed by a blocking assay with eight pathways-specific kinase inhibitors. RESULTS TND promoted the proliferation, migration and tube formation of HUVECs. TND also rescued the impairment of ISVs, SIVs and CtAs caused by VRI in a dose-dependent manner in zebrafish embryos. TND could activate vascular endothelial growth factor receptor-2 (VEGFR-2), phosphoinositide 3-kinase (PI3K) - protein kinase B (Akt) and Raf - mitogen-activated protein kinase1/2 (MEK1/2) - extracellular regulated kinase 1/2 (ERK1/2) signaling pathways. CONCLUSION Our study firstly demonstrated the pro-angiogenic activities of TND. Our work provided evidences for the clinical usage of TND in restoring neurovascular function through promoting angiogenesis in the ischemic cerebral microvascular.
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Affiliation(s)
- Jianli Wang
- Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, 210029, China; Department of Neurology, Jiangsu Province Hospital of Chinese Medicine, Nanjing, 210029, China; The First Clinical Medical College, Nanjing University of Chinese Medicine, Nanjing, 210029, China
| | - Xiao-Huan Zhang
- Institute of Translational Medicine, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, 211816, China
| | - Xiaoyu Xu
- Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, 210029, China; Department of Neurology, Jiangsu Province Hospital of Chinese Medicine, Nanjing, 210029, China; The First Clinical Medical College, Nanjing University of Chinese Medicine, Nanjing, 210029, China
| | - Qing Zhu
- Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, 210029, China; Department of Neurology, Jiangsu Province Hospital of Chinese Medicine, Nanjing, 210029, China; The First Clinical Medical College, Nanjing University of Chinese Medicine, Nanjing, 210029, China
| | - Beibei Yao
- Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, 210029, China; Department of Neurology, Jiangsu Province Hospital of Chinese Medicine, Nanjing, 210029, China
| | - Seng Liang
- Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, 210029, China; Department of Neurology, Jiangsu Province Hospital of Chinese Medicine, Nanjing, 210029, China
| | - Zhaoyao Chen
- Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, 210029, China; Department of Neurology, Jiangsu Province Hospital of Chinese Medicine, Nanjing, 210029, China
| | - Yuxuan Wang
- Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, 210029, China; The First Clinical Medical College, Nanjing University of Chinese Medicine, Nanjing, 210029, China
| | - Ming-Fang He
- Institute of Translational Medicine, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, 211816, China
| | - Minghua Wu
- Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, 210029, China; Department of Neurology, Jiangsu Province Hospital of Chinese Medicine, Nanjing, 210029, China; The First Clinical Medical College, Nanjing University of Chinese Medicine, Nanjing, 210029, China.
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Sewduth R, Pandolfi S, Steklov M, Sheryazdanova A, Zhao P, Criem N, Baietti M, Lechat B, Quarck R, Impens F, Sablina A. The Noonan Syndrome Gene Lztr1 Controls Cardiovascular Function by Regulating Vesicular Trafficking. Circ Res 2020; 126:1379-1393. [PMID: 32175818 PMCID: PMC8575076 DOI: 10.1161/circresaha.119.315730] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
RATIONALE Noonan syndrome (NS) is one of the most frequent genetic disorders. Bleeding problems are among the most common, yet poorly defined complications associated with NS. A lack of consensus on the management of bleeding complications in patients with NS indicates an urgent need for new therapeutic approaches. OBJECTIVE Bleeding disorders have recently been described in patients with NS harboring mutations of LZTR1 (leucine zipper-like transcription regulator 1), an adaptor for CUL3 (CULLIN3) ubiquitin ligase complex. Here, we assessed the pathobiology of LZTR1-mediated bleeding disorders. METHODS AND RESULTS Whole-body and vascular specific knockout of Lztr1 results in perinatal lethality due to cardiovascular dysfunction. Lztr1 deletion in blood vessels of adult mice leads to abnormal vascular leakage. We found that defective adherent and tight junctions in Lztr1-depleted endothelial cells are caused by dysregulation of vesicular trafficking. LZTR1 affects the dynamics of fusion and fission of recycling endosomes by controlling ubiquitination of the ESCRT-III (endosomal sorting complex required for transport III) component CHMP1B (charged multivesicular protein 1B), whereas NS-associated LZTR1 mutations diminish CHMP1B ubiquitination. LZTR1-mediated dysregulation of CHMP1B ubiquitination triggers endosomal accumulation and subsequent activation of VEGFR2 (vascular endothelial growth factor receptor 2) and decreases blood levels of soluble VEGFR2 in Lztr1 haploinsufficient mice. Inhibition of VEGFR2 activity by cediranib rescues vascular abnormalities observed in Lztr1 knockout mice Conclusions: Lztr1 deletion phenotypically overlaps with bleeding diathesis observed in patients with NS. ELISA screening of soluble VEGFR2 in the blood of LZTR1-mutated patients with NS may predict both the severity of NS phenotypes and potential responders to anti-VEGF therapy. VEGFR inhibitors could be beneficial for the treatment of bleeding disorders in patients with NS.
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Affiliation(s)
- R. Sewduth
- VIB-KU Leuven Center for Cancer Biology, VIB, Herestraat 49, 3000 Leuven, Belgium
- Department of Oncology, KU Leuven, Herestraat 49, 3000 Leuven, Belgium
| | - S. Pandolfi
- VIB-KU Leuven Center for Cancer Biology, VIB, Herestraat 49, 3000 Leuven, Belgium
- Department of Oncology, KU Leuven, Herestraat 49, 3000 Leuven, Belgium
| | - M. Steklov
- VIB-KU Leuven Center for Cancer Biology, VIB, Herestraat 49, 3000 Leuven, Belgium
- Department of Oncology, KU Leuven, Herestraat 49, 3000 Leuven, Belgium
| | - A. Sheryazdanova
- VIB-KU Leuven Center for Cancer Biology, VIB, Herestraat 49, 3000 Leuven, Belgium
- Department of Oncology, KU Leuven, Herestraat 49, 3000 Leuven, Belgium
| | - P. Zhao
- VIB-KU Leuven Center for Cancer Biology, VIB, Herestraat 49, 3000 Leuven, Belgium
- Department of Oncology, KU Leuven, Herestraat 49, 3000 Leuven, Belgium
| | - N. Criem
- VIB-KU Leuven Center for Cancer Biology, VIB, Herestraat 49, 3000 Leuven, Belgium
- Department of Oncology, KU Leuven, Herestraat 49, 3000 Leuven, Belgium
| | - M.F. Baietti
- VIB-KU Leuven Center for Cancer Biology, VIB, Herestraat 49, 3000 Leuven, Belgium
- Department of Oncology, KU Leuven, Herestraat 49, 3000 Leuven, Belgium
| | - B. Lechat
- VIB-KU Leuven Center for Cancer Biology, VIB, Herestraat 49, 3000 Leuven, Belgium
- Department of Oncology, KU Leuven, Herestraat 49, 3000 Leuven, Belgium
| | - R. Quarck
- University Hospitals and Department of Chronic Diseases, Metabolism & Ageing (CHROMETA), KU Leuven, Herestraat 49, 3000 Leuven, Belgium
| | - F. Impens
- Department of Biomolecular Medicine, Ghent University, B-9000 Ghent, Belgium
- VIB Center for Medical Biotechnology, B-9000 Ghent, Belgium
- VIB Proteomics Core, Albert Baertsoenkaai 3, 9000 Ghent, Belgium
| | - A.A. Sablina
- VIB-KU Leuven Center for Cancer Biology, VIB, Herestraat 49, 3000 Leuven, Belgium
- Department of Oncology, KU Leuven, Herestraat 49, 3000 Leuven, Belgium
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Mercan Yücel U, Başbuğan Y, Uyar A, Kömüroğlu AU, Keleş ÖF. Use of an antiarrhythmic drug against acute selenium toxicity. J Trace Elem Med Biol 2020; 59:126471. [PMID: 32032907 DOI: 10.1016/j.jtemb.2020.126471] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/16/2019] [Revised: 01/07/2020] [Accepted: 01/24/2020] [Indexed: 11/30/2022]
Abstract
OBJECTIVE Selenium is an essential trace element. But, selenium may have toxic effects in high doses. There are no proven antidotes or curative treatments for acut selenium toxicity. Treatment involves stopping the exposure and providing supportive care for symptoms. Therefore, it is necessary to find more effective substances in the treatment of selenium toxicity. The aim of this study was to increase the survival rate of animals by supporting the heart with amiodarone and to determine the effect of amiodarone on the pathological, hematological and biochemical parameters in acute selenium intoxication. METHODS 64 Wistar-Albino rats were divided into four groups. Group I was given only distilled water, Group II was given 18 mg/kg dose of amiodarone, Group III was given 18 mg/kg amiodarone and 10 mg/kg sodium selenite and Group IV was given sodium selenite 10 mg/kg (LD50 dose)orally. RESULTS 11 of the 16 animals in Group IV died within the first 48 h of drug administration. However, no deaths were observed in the rats in Group III. No hematological changes were observed. Biochemically, CK, CK-MB and LDH levels of Group IV were higher than the other groups on both the 2nd and 10th days. In Groups II and III, this serum level decreased, and vitamin B12 levels increased. In macroscopic inspections of the organs of Groups III and IV, slight paleness was detected. Histopathologically, degenerative changes in tissue were observed, especially in Group IV. CONCLUSION This study shows that amiodarone application has a reducing effect on selenium toxicity. This was because amiodarone protected the heart by reducing CK and CK-MB levels and increased vitamin B12 levels, which play a role in the synthesis of S-adenosyl methionine that converts selenium into a nontoxic form.
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Affiliation(s)
- Ufuk Mercan Yücel
- Van Yüzüncü Yıl University, Faculty of Veterinary Medicine, Department of Pharmacology and Toxicology, Van, Turkey.
| | - Yıldıray Başbuğan
- Van Yüzüncü Yıl University, Faculty of Veterinary Medicine, Department of Internal Medicine, Van, Turkey
| | - Ahmet Uyar
- Hatay Mustafa Kemal University, Faculty of Veterinary Medicine, Pathology Department, Hatay, Turkey
| | - Ahmet Ufuk Kömüroğlu
- Van Yüzüncü Yıl University, Faculty of Veterinary Medicine, Pathology Department, Van, Turkey
| | - Ömer Faruk Keleş
- Van Yüzüncü Yıl University, Health Services Vocational School, Van, Turkey
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Wang H, Jiang Q, Shen Y, Zhang L, Haacke EM, Ge Y, Qi S, Hu J. The capability of detecting small vessels beyond the conventional MRI sensitivity using iron-based contrast agent enhanced susceptibility weighted imaging. NMR Biomed 2020; 33:e4256. [PMID: 32045957 DOI: 10.1002/nbm.4256] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Revised: 11/19/2019] [Accepted: 12/14/2019] [Indexed: 06/10/2023]
Abstract
Imaging brain microvasculature is important in cerebrovascular diseases. However, there is still a lack of non-invasive, non-radiation, and whole-body imaging techniques to investigate them. The aim of this study is to develop an ultra-small superparamagnetic iron oxide (USPIO) enhanced susceptibility weighted imaging (SWI) method for imaging micro-vasculature in both animal (~10 μm in rat) and human brain. We hypothesized that the USPIO-SWI technique could improve the detection sensitivity of the diameter of small subpixel vessels 10-fold compared with conventional MRI methods. Computer simulations were first performed with a double-cylinder digital model to investigate the theoretical basis for this hypothesis. The theoretical results were verified using in vitro phantom studies and in vivo rat MRI studies (n = 6) with corresponding ex vivo histological examinations. Additionally, in vivo human studies (n = 3) were carried out to demonstrate the translational power of the USPIO-SWI method. By directly comparing the small vessel diameters of an in vivo rat using USPIO-SWI with the small vessel diameters of the corresponding histological slide using laser scanning confocal microscopy, 13.3-fold and 19.9-fold increases in SWI apparent diameter were obtained with 5.6 mg Fe/kg and 16.8 mg Fe/kg ferumoxytol, respectively. The USPIO-SWI method exhibited its excellent ability to detect small vessels down to about 10 μm diameter in rat brain. The in vivo human study unveiled hidden arterioles and venules and demonstrated its potential in clinical practice. Theoretical modeling simulations and in vitro phantom studies also confirmed a more than 10-fold increase in the USPIO-SWI apparent diameter compared with the actual small vessel diameter size. It is feasible to use SWI blooming effects induced by USPIO to detect small vessels (down to 10 μm in diameter for rat brain), well beyond the spatial resolution limit of conventional MRI methods. The USPIO-SWI method demonstrates higher potential in cerebrovascular disease investigations.
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Affiliation(s)
- Haoyu Wang
- Beijing Institute of Radiation Medicine, Beijing, China
| | - Quan Jiang
- Department of Neurology, Henry Ford Health System, Detroit, Michigan
| | - Yimin Shen
- Department of Radiology, Wayne State University, Detroit, Michigan
| | - Li Zhang
- Department of Neurology, Henry Ford Health System, Detroit, Michigan
| | - E Mark Haacke
- Department of Radiology, Wayne State University, Detroit, Michigan
| | - Yulin Ge
- Department of Radiology, New York University, New York, New York
| | - Shouliang Qi
- The Sino-Dutch Biomedical and Information Engineering School of Northeastern University, Shenyang, China
| | - Jiani Hu
- Department of Radiology, Wayne State University, Detroit, Michigan
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Smiljanec K, Mbakwe A, Ramos Gonzalez M, Farquhar WB, Lennon SL. Dietary Potassium Attenuates the Effects of Dietary Sodium on Vascular Function in Salt-Resistant Adults. Nutrients 2020; 12:nu12051206. [PMID: 32344796 PMCID: PMC7281996 DOI: 10.3390/nu12051206] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Revised: 04/17/2020] [Accepted: 04/23/2020] [Indexed: 12/11/2022] Open
Abstract
The influence of dietary sodium and potassium on blood pressure (BP) has been extensively studied, however their impact on endothelial function, particularly any interactive effects, has received less attention. The purpose of this study was to determine if dietary potassium can offset the deleterious effect of high dietary sodium on endothelial function independent of BP. Thirty-three adults with salt-resistant BP (16 M and 17 F; 27 ± 1 year) completed seven days each of the following diets in a random order: a moderate potassium/low sodium diet (65 mmol potassium/50 mmol sodium; MK/LS), a moderate potassium/high sodium diet (65mmol potassium/300 mmol sodium; MK/HS) and a high potassium/high sodium (120 mmol potassium/300 mmol sodium; HK/HS). On day seven of each diet, 24-h ambulatory BP and a urine collection were performed. Brachial artery flow-mediated dilation (FMD) was measured in response to reactive hyperemia. Between diets, 24-h BP was unchanged confirming salt resistance (p > 0.05). Sodium excretion increased on both HS diets compared to MK/LS (p < 0.05) and potassium excretion was increased on the HK diet compared to MK/LS and MK/HS (p < 0.05) confirming diet compliance. FMD was lower in MK/HS (5.4 ± 0.5%) compared to MK/LS (6.7 ± 0.5%; p < 0.05) and HK/HS (6.4 ± 0.5%), while there was no difference between the MK/LS and HK/HS diets (p > 0.05). These data suggest that dietary potassium provides vascular protection against the deleterious effects of high dietary sodium by restoring conduit artery function.
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Kasiri S, Chen B, Wilson AN, Reczek A, Mazambani S, Gadhvi J, Noel E, Marriam U, Mino B, Lu W, Girard L, Solis LM, Luby-Phelps K, Bishop J, Kim JW, Kim J. Stromal Hedgehog pathway activation by IHH suppresses lung adenocarcinoma growth and metastasis by limiting reactive oxygen species. Oncogene 2020; 39:3258-3275. [PMID: 32108165 PMCID: PMC7160060 DOI: 10.1038/s41388-020-1224-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2019] [Revised: 02/10/2020] [Accepted: 02/14/2020] [Indexed: 01/03/2023]
Abstract
Activation of the Hedgehog (Hh) signaling pathway by mutations within its components drives the growth of several cancers. However, the role of Hh pathway activation in lung cancers has been controversial. Here, we demonstrate that the canonical Hh signaling pathway is activated in lung stroma by Hh ligands secreted from transformed lung epithelia. Genetic deletion of Shh, the primary Hh ligand expressed in the lung, in KrasG12D/+;Trp53fl/fl autochthonous murine lung adenocarcinoma had no effect on survival. Early abrogation of the pathway by an anti-SHH/IHH antibody 5E1 led to significantly worse survival with increased tumor and metastatic burden. Loss of IHH, another Hh ligand, by in vivo CRISPR led to more aggressive tumor growth suggesting that IHH, rather than SHH, activates the pathway in stroma to drive its tumor suppressive effects-a novel role for IHH in the lung. Tumors from mice treated with 5E1 had decreased blood vessel density and increased DNA damage suggestive of reactive oxygen species (ROS) activity. Treatment of KrasG12D/+;Trp53fl/fl mice with 5E1 and N-acetylcysteine, as a ROS scavenger, decreased tumor DNA damage, inhibited tumor growth and prolonged mouse survival. Thus, IHH induces stromal activation of the canonical Hh signaling pathway to suppress tumor growth and metastases, in part, by limiting ROS activity.
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Affiliation(s)
- Sahba Kasiri
- Nancy B. and Jake L. Hamon Center for Therapeutic Oncology Research and Harold C. Simmons Comprehensive Cancer Center, Dallas, TX, USA
| | - Baozhi Chen
- Nancy B. and Jake L. Hamon Center for Therapeutic Oncology Research and Harold C. Simmons Comprehensive Cancer Center, Dallas, TX, USA
| | - Alexandra N Wilson
- Nancy B. and Jake L. Hamon Center for Therapeutic Oncology Research and Harold C. Simmons Comprehensive Cancer Center, Dallas, TX, USA
| | - Annika Reczek
- Nancy B. and Jake L. Hamon Center for Therapeutic Oncology Research and Harold C. Simmons Comprehensive Cancer Center, Dallas, TX, USA
| | - Simbarashe Mazambani
- Department of Biological Sciences, The University of Texas at Dallas, Richardson, TX, 75080, USA
| | - Jashkaran Gadhvi
- Department of Biological Sciences, The University of Texas at Dallas, Richardson, TX, 75080, USA
| | - Evan Noel
- Nancy B. and Jake L. Hamon Center for Therapeutic Oncology Research and Harold C. Simmons Comprehensive Cancer Center, Dallas, TX, USA
| | - Ummay Marriam
- Nancy B. and Jake L. Hamon Center for Therapeutic Oncology Research and Harold C. Simmons Comprehensive Cancer Center, Dallas, TX, USA
| | - Barbara Mino
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Wei Lu
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Luc Girard
- Nancy B. and Jake L. Hamon Center for Therapeutic Oncology Research and Harold C. Simmons Comprehensive Cancer Center, Dallas, TX, USA
| | - Luisa M Solis
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Katherine Luby-Phelps
- Department of Cell Biology, University of Texas Southwestern Medical Center, Dallas, TX, 75390, USA
| | - Justin Bishop
- Department of Pathology, University of Texas Southwestern Medical Center, Dallas, TX, 75390, USA
| | - Jung-Whan Kim
- Department of Biological Sciences, The University of Texas at Dallas, Richardson, TX, 75080, USA
| | - James Kim
- Nancy B. and Jake L. Hamon Center for Therapeutic Oncology Research and Harold C. Simmons Comprehensive Cancer Center, Dallas, TX, USA.
- Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX, 75390, USA.
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Gorskaya YF, Semenova EN, Nagurskaya EV, Nesterenko VG. Involvement of Bone Marrow Multipotent Stromal Cells in the Processes Presumably Provoking Vascular Calcification. Bull Exp Biol Med 2020; 168:479-484. [PMID: 32146636 DOI: 10.1007/s10517-020-04735-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2019] [Indexed: 11/25/2022]
Abstract
During serial transplantation of bone marrow derived from young and aged donor CBA mice to 5-month-old recipients, the counts of multipotent stromal cells (MSC) in transplants from young donors assessed at each passage surpassed those of aged donors by 3.2, 7.8, 3.0, and 2.2 times attesting to the age-related decrease of active pool of bone marrow MSC. The medullary curettage in mouse femur increased the total number of MSC and the number of osteogenic MSC both in the contralateral femur and in the bone marrow transplants attesting to spread of the effects of osteogenic factors after bone injury onto the bone tissue of the body even if this tissue if not topographically related to the skeleton. Combined and simultaneous administration of antigenic complex of S. typhimurium (or LPS) with BMP-2 markedly increased the count of osteogenic medullary MSC by 3.6 or 4.6 times in comparison with intact control or by 2.1 and 2.7 times in comparison with administration of BMP-2 alone, which probably resulted from enlargement of the pool of osteogenesis-inducible MSC due to inflammation. Addition of BMP-2 to the culture of splenic stromal cells where osteogenesis does not occur under normal conditions provoked appearance of MSC colonies with alkaline phosphatase activity attesting to involvement of inducible osteogenic MSC in vascular calcification. It can be hypothesized that the reaction to the age-related changes in the bone tissue and osteoporosis is similar to the reaction to bone marrow injury and includes initiation of systemic inflammation and elevation of blood BMP-2, both of which are prerequisite for vascular calcification.
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Affiliation(s)
- Yu F Gorskaya
- Laboratory of Immunity Regulation and Immunological Tolerance, N. F. Gamaleya Federal Research Center of Epidemiology and Microbiology, the Ministry of Health of the Russian Federation, Moscow, Russia.
| | - E N Semenova
- Laboratory of Immunity Regulation and Immunological Tolerance, N. F. Gamaleya Federal Research Center of Epidemiology and Microbiology, the Ministry of Health of the Russian Federation, Moscow, Russia
| | - E V Nagurskaya
- Laboratory of Immunity Regulation and Immunological Tolerance, N. F. Gamaleya Federal Research Center of Epidemiology and Microbiology, the Ministry of Health of the Russian Federation, Moscow, Russia
| | - V G Nesterenko
- Laboratory of Immunity Regulation and Immunological Tolerance, N. F. Gamaleya Federal Research Center of Epidemiology and Microbiology, the Ministry of Health of the Russian Federation, Moscow, Russia
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Zhao X, Liu L, An T, Xian M, Luckanagul JA, Su Z, Lin Y, Wang Q. A hydrogen sulfide-releasing alginate dressing for effective wound healing. Acta Biomater 2020; 104:85-94. [PMID: 31901456 DOI: 10.1016/j.actbio.2019.12.032] [Citation(s) in RCA: 73] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Revised: 12/25/2019] [Accepted: 12/27/2019] [Indexed: 01/04/2023]
Abstract
For wounds with heavy exudate levels, a dressing that can help to absorb wound exudate and improve the wound healing process is highly desired. Hydrogen sulfide (H2S) has been recognized as an important gasotransmitter that can improve angiogenesis which is crucial for wound healing. In this study, a functional sodium alginate (SA) dressing with H2S-releasing property (SA/JK-1) was fabricated by incorporating JK-1 molecule, a pH-dependent H2S donor, into SA sponge. The resultant SA/JK-1 sponge provided a moist and protective healing environment and was capable of releasing H2S consistently under acidic pH condition by absorbing exudate at the wound interface. The H2S release of JK-1 donor was prolonged by the SA sponge compared with JK-1 in solution. Cell study in vitro indicated that SA/JK-1 not only exhibited good cyto-compatibility, but also improved fibroblast proliferation and migration. In addition, the effects of the SA/JK-1 dressing on wound healing was evaluated using an in vivo full thickness dermal defect model, which revealed that SA/JK-1 can significantly improve wound healing process with enhanced granulation tissue formation, re-epithelialization, collagen deposition and angiogenesis, due to the H2S released from JK-1. Taken together, our results showed that SA dressing doped with H2S donor could potentially serves as an effective wound healing strategy. STATEMENT OF SIGNIFICANCE: The gasotransmitter H2S has been proven to improve the wound healing process in nanofibrous dressing due to its biological functions on angiogenesis. However, for non-healing wounds with heavy exudates, a wound dressing that can absorb wound exudates and controlled gasotransmitter release to improve the wound healing process is still in urgent need. Here we fabricated a sodium alginate (SA) sponge incorporated with H2S donor JK-1 (SA/JK-1), which showed strong water uptake capability, and released H2S under acidic condition. The SA/JK-1 sponge exhibited biocompatibility to fibroblasts and promoted cell migration in vitro, and exhibited obviously positive influence on wound healing in vivo. This H2S donor doped alginate wound dressing represents a promising strategy for treatment of non-healing wound.
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Affiliation(s)
- Xia Zhao
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun, Jilin 130022, PR China
| | - Lin Liu
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun, Jilin 130022, PR China; College of Life Science, Northeast Forestry University, Harbin 150040, PR China
| | - Tiezhu An
- College of Life Science, Northeast Forestry University, Harbin 150040, PR China.
| | - Ming Xian
- Department of Chemistry, Washington State University, Pullman, WA 99164, United States
| | - Jittima Amie Luckanagul
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmaceutical Sciences, Chulalongkorn University, 254 Phayathai Rd., Wangmai, Pathumwan, Bangkok 10330, Thailand
| | - Zhaohui Su
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun, Jilin 130022, PR China
| | - Yuan Lin
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun, Jilin 130022, PR China.
| | - Qian Wang
- Department of Chemistry and Biochemistry, University of South Carolina, 631 Sumter Street, Columbia, South Carolina 29208, United States
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Abstract
Due to its properties, such as biodegradability, low density, excellent biocompatibility and unique mechanics, spider silk has been used as a natural biomaterial for a myriad of applications. First clinical applications of spider silk as suture material go back to the 18th century. Nowadays, since natural production using spiders is limited due to problems with farming spiders, recombinant production of spider silk proteins seems to be the best way to produce material in sufficient quantities. The availability of recombinantly produced spider silk proteins, as well as their good processability has opened the path towards modern biomedical applications. Here, we highlight the research on spider silk-based materials in the field of tissue engineering and summarize various two-dimensional (2D) and three-dimensional (3D) scaffolds made of spider silk. Finally, different applications of spider silk-based materials are reviewed in the field of tissue engineering in vitro and in vivo.
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Affiliation(s)
- Sahar Salehi
- Department for Biomaterials, University of Bayreuth, Prof.-Rüdiger-Bormann-Strasse 1, 95447 Bayreuth, Germany (K.K.)
| | - Kim Koeck
- Department for Biomaterials, University of Bayreuth, Prof.-Rüdiger-Bormann-Strasse 1, 95447 Bayreuth, Germany (K.K.)
| | - Thomas Scheibel
- Department for Biomaterials, University of Bayreuth, Prof.-Rüdiger-Bormann-Strasse 1, 95447 Bayreuth, Germany (K.K.)
- The Bayreuth Center for Colloids and Interfaces (BZKG), University of Bayreuth, Universitätsstraße 30, 95447 Bayreuth, Germany
- The Bayreuth Center for Molecular Biosciences (BZMB), University of Bayreuth, Universitätsstraße 30, 95447 Bayreuth, Germany
- The Bayreuth Materials Center (BayMAT), University of Bayreuth, Universitätsstraße 30, 95447 Bayreuth, Germany
- Bavarian Polymer Institute (BPI), University of Bayreuth, Universitätsstraße 30, 95447 Bayreuth, Germany
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Meehan GR, Scales HE, Osii R, De Niz M, Lawton JC, Marti M, Garside P, Craig A, Brewer JM. Developing a xenograft model of human vasculature in the mouse ear pinna. Sci Rep 2020; 10:2058. [PMID: 32029768 PMCID: PMC7004987 DOI: 10.1038/s41598-020-58650-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Accepted: 01/14/2020] [Indexed: 12/31/2022] Open
Abstract
Humanised xenograft models allow for the analysis of human tissue within a physiological environment in vivo. However, current models often rely on the angiogenesis and ingrowth of recipient vasculature to perfuse tissues, preventing analysis of biological processes and diseases involving human blood vessels. This limits the effectiveness of xenografts in replicating human physiology and may lead to issues with translating findings into human research. We have designed a xenograft model of human vasculature to address this issue. Human subcutaneous fat was cultured in vitro to promote blood vessel outgrowth prior to implantation into immunocompromised mice. We demonstrate that implants survived, retained human vasculature and anastomosed with the circulatory system of the recipient mouse. Significantly, by performing transplants into the ear pinna, this system enabled intravital observation of xenografts by multiphoton microscopy, allowing us to visualise the steps leading to vascular cytoadherence of erythrocytes infected with the human parasite Plasmodium falciparum. This model represents a useful tool for imaging the interactions that occur within human tissues in vivo and permits visualization of blood flow and cellular recruitment in a system which is amenable to intervention for various studies in basic biology together with drug evaluation and mechanism of action studies.
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Affiliation(s)
- Gavin R Meehan
- Institute of Infection, Immunity & Inflammation, University of Glasgow, Scotland, UK
| | - Hannah E Scales
- Institute of Infection, Immunity & Inflammation, University of Glasgow, Scotland, UK
| | - Rowland Osii
- Institute of Infection, Immunity & Inflammation, University of Glasgow, Scotland, UK
| | - Mariana De Niz
- Institute of Infection, Immunity & Inflammation, University of Glasgow, Scotland, UK
- Instituto de Medicina Molecular, University of Lisbon, Lisbon, Portugal
| | - Jennifer C Lawton
- Institute of Infection, Immunity & Inflammation, University of Glasgow, Scotland, UK
| | - Matthias Marti
- Institute of Infection, Immunity & Inflammation, University of Glasgow, Scotland, UK
| | - Paul Garside
- Institute of Infection, Immunity & Inflammation, University of Glasgow, Scotland, UK
| | - Alister Craig
- Liverpool School of Tropical Medicine, Liverpool, UK
| | - James M Brewer
- Institute of Infection, Immunity & Inflammation, University of Glasgow, Scotland, UK.
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Lorigo M, Mariana M, Lemos MC, Cairrao E. Vascular mechanisms of testosterone: The non-genomic point of view. J Steroid Biochem Mol Biol 2020; 196:105496. [PMID: 31655180 DOI: 10.1016/j.jsbmb.2019.105496] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Revised: 09/26/2019] [Accepted: 10/07/2019] [Indexed: 01/19/2023]
Abstract
Testosterone (T) is the predominant endogenous androgen in the bloodstream. At the vascular level, T presents genomic and non-genomic effects, and both effects may overlap. The genomic actions assume that androgens can freely cross the plasma membrane of target cells and bind to nuclear androgen receptors, inducing gene transcription and protein synthesis. The non-genomic effects have a more rapid onset and may be related to the interaction with protein/receptor/ion channels of the plasma membrane. The key T effect at the vascular level is vasorelaxation, which is primarily due to its rapid effect. Thus, the main purpose of this review is to discuss the T non-genomic effects at the vascular level and the molecular pathways involved in its vasodilator effect observed in in vivo and in vitro studies. In this sense, the nuclear receptor activation, the influence of vascular endothelium and the activation or inhibition of ion channels (potassium and calcium channels, respectively) will be reviewed regarding all the data that corroborated or not. Moreover, this review also provides a brief update on the association of T with the risk factors for cardiovascular diseases, namely metabolic syndrome, type 2 diabetes mellitus, obesity, atherosclerosis, dyslipidaemia, and hypertension. In summary, in this paper we consider the non-genomic vascular mode of action of androgen in physiological conditions and the main risk factors for cardiovascular diseases.
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Affiliation(s)
- Margarida Lorigo
- CICS-UBI - Centro de Investigação em Ciências da Saúde, University of Beira Interior, 6200-506 Covilhã, Portugal.
| | - Melissa Mariana
- CICS-UBI - Centro de Investigação em Ciências da Saúde, University of Beira Interior, 6200-506 Covilhã, Portugal.
| | - Manuel C Lemos
- CICS-UBI - Centro de Investigação em Ciências da Saúde, University of Beira Interior, 6200-506 Covilhã, Portugal.
| | - Elisa Cairrao
- CICS-UBI - Centro de Investigação em Ciências da Saúde, University of Beira Interior, 6200-506 Covilhã, Portugal.
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Lai X, Xiu C, Wang X, Fang J, Yang J, Lei Y. Efficacy of Renshen Sanqi Chuanxiong formula for preventing vascular aging. J TRADIT CHIN MED 2019; 39:780-793. [PMID: 32186148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
OBJECTIVE To evaluate the efficacy of Renshen Sanqi Chuanxiong formula (RSCF) for preventing vascular aging, and to investigate the possible molecular mechanism underlying the actions of RSCF. METHODS Potentially active components and their relatively direct targets were identified by combining drug-likeness (DL) screening using a target identification process. Vascular aging-associated targets for RSCF were obtained by selecting common genes not only from potential targets but also from human vascular aging-associated genes. Cytoscape 3.2.1 software was employed to visualize the complex compound-target and target-function networks. Biological process and molecular function were assessed, and the Kyoto Encyclopedia of Genes and Genomes and pathway enrichment analyses were performed using ClueGO. Pathways directly associated with vascular aging were integrated into a ""vascular aging-related"" pathway. RESULTS Altogether, 122 potentially active components of RSCF were identified through DL screening, and their corresponding 692 direct targets were retrieved via target prediction and identification. We identified 49 vascular aging-associated targets for RSCF by overlapping the 692 potential targets with 146 human vascular aging-associated genes. The results from the compound-target network indicated that most components acted on common targets and displayed synergistic action, which showed that the magnifying effects of RSCF were based on these common targets. The target-function network revealed that each target was involved in multiple function modules, suggesting that RSCF was multi-functional during treatment of vascular aging. The results of the ClueGO analysis indicated that most of the targets were associated with the hypoxia-inducible factor 1 (HIF-1) signaling pathway. The results from the pathway analysis also indicated that an integrative vascular aging-related pathway mainly included an angiogenesis regulation module, cell-survival module, and oxidative stress-resistance module. CONCLUSION Our results suggested that many components act synergistically on common targets to delay vascular aging, and each target is involved in multiple functional modules. The ClueGO analysis indicated that most of the targets were connected to the HIF-1 signaling pathway, FOXO signaling pathway, and thyroid hormone signaling pathway.
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Affiliation(s)
- Xiaohua Lai
- Beijing Key Laboratory of Research of Chinese Medicine on Prevention and Treatment for Major Diseases, Experimental Research Center, China Academy of Chinese Medical Sciences, Beijing 100700, China
- Institute of Chinese Medicinal Sciences, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Chengkui Xiu
- Beijing Key Laboratory of Research of Chinese Medicine on Prevention and Treatment for Major Diseases, Experimental Research Center, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Xue Wang
- Beijing Key Laboratory of Research of Chinese Medicine on Prevention and Treatment for Major Diseases, Experimental Research Center, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Jingyi Fang
- Beijing Key Laboratory of Research of Chinese Medicine on Prevention and Treatment for Major Diseases, Experimental Research Center, China Academy of Chinese Medical Sciences, Beijing 100700, China
- Institute of Chinese Medicinal Sciences, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Jing Yang
- Beijing Key Laboratory of Research of Chinese Medicine on Prevention and Treatment for Major Diseases, Experimental Research Center, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Yan Lei
- Beijing Key Laboratory of Research of Chinese Medicine on Prevention and Treatment for Major Diseases, Experimental Research Center, China Academy of Chinese Medical Sciences, Beijing 100700, China
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Han F, Hou N, Liu Y, Huang N, Pan R, Zhang X, Mao E, Sun X. Liraglutide improves vascular dysfunction by regulating a cAMP-independent PKA-AMPK pathway in perivascular adipose tissue in obese mice. Biomed Pharmacother 2019; 120:109537. [PMID: 31605951 DOI: 10.1016/j.biopha.2019.109537] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2019] [Revised: 10/01/2019] [Accepted: 10/02/2019] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Perivascular adipose tissue (PVAT) attenuates its anti-contractile effect through an endothelial-dependent mechanism that aggravates endothelial dysfunction in obesity. The present study was conducted to explore whether liraglutide could improve vascular dysfunction, including the anti-contractile effect of PVAT and endothelial function, by modulating PVAT-related signaling pathways in obesity. METHODS C57BL/6 mice were fed a normal-chow diet or a high-fat diet (HFD) with or without liraglutide treatment. Vascular function of the thoracic aorta with or without PVAT were measured. Protein levels of components of the PKA-AMPK-PGC1α and antioxidant signaling pathway in PVAT were determined by western blotting. Brown adipose tissue-related gene in PVAT was measured by qRT-PCR. RESULTS Metabolic profiles of HFD-fed mice were improved after treatment with liraglutide. Liraglutide improved PVAT-induced anti-contractile capability and PVAT-induced endothelial dysfunction in HFD-fed mice both in vivo and ex vivo. However, blocking PKA, or AMPK, but not cAMP, attenuated these beneficial effects of liraglutide. Treating HFD-fed mice with liraglutide activated the AMPK/eNOS pathway and induced browning-related gene expression. Moreover, liraglutide increased antioxidant capability. The protective effects were related to activation of a cAMP-independent PKA-AMPK pathway, as demonstrated by western blot and PCR. CONCLUSIONS Liraglutide improved vascular dysfunction by modulating a cAMP-independent PKA-AMPK pathway in PVAT in HFD-induced obese mice. The findings provide a novel mechanism for the cardiovascular protection of liraglutide by modulating PVAT function in obesity.
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Affiliation(s)
- Fang Han
- Department of Pathology, Affiliated Hospital of Weifang Medical University, Weifang, China
| | - Ningning Hou
- Department of Endocrinology, Affiliated Hospital of Weifang Medical University, Weifang, China
| | - Yongping Liu
- Department of Endocrinology, Affiliated Hospital of Weifang Medical University, Weifang, China
| | - Na Huang
- Department of Endocrinology, Affiliated Hospital of Weifang Medical University, Weifang, China
| | - Ruiyan Pan
- Department of Pharmacology, Weifang Medical University, Weifang, China
| | - Xing Zhang
- Key Laboratory of Tumor Immunology and Microenvironmental Regulation, Guilin Medical University, Guilin, China
| | - Enwen Mao
- Department of Endocrinology, Affiliated Hospital of Weifang Medical University, Weifang, China
| | - Xiaodong Sun
- Department of Endocrinology, Affiliated Hospital of Weifang Medical University, Weifang, China.
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50
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Zhang K, Fang Y, He Y, Yin H, Guan X, Pu Y, Zhou B, Yue W, Ren W, Du D, Li H, Liu C, Sun L, Chen Y, Xu H. Extravascular gelation shrinkage-derived internal stress enables tumor starvation therapy with suppressed metastasis and recurrence. Nat Commun 2019; 10:5380. [PMID: 31772164 PMCID: PMC6879564 DOI: 10.1038/s41467-019-13115-3] [Citation(s) in RCA: 68] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2018] [Accepted: 10/21/2019] [Indexed: 01/08/2023] Open
Abstract
Despite the efficacy of current starvation therapies, they are often associated with some intrinsic drawbacks such as poor persistence, facile tumor metastasis and recurrence. Herein, we establish an extravascular gelation shrinkage-derived internal stress strategy for squeezing and narrowing blood vessels, occluding blood & nutrition supply, reducing vascular density, inducing hypoxia and apoptosis and eventually realizing starvation therapy of malignancies. To this end, a biocompatible composite hydrogel consisting of gold nanorods (GNRs) and thermal-sensitive hydrogel mixture was engineered, wherein GRNs can strengthen the structural property of hydrogel mixture and enable robust gelation shrinkage-induced internal stresses. Systematic experiments demonstrate that this starvation therapy can suppress the growths of PANC-1 pancreatic cancer and 4T1 breast cancer. More significantly, this starvation strategy can suppress tumor metastasis and tumor recurrence via reducing vascular density and blood supply and occluding tumor migration passages, which thus provides a promising avenue to comprehensive cancer therapy.
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Affiliation(s)
- Kun Zhang
- Department of Medical Ultrasound, Shanghai Tenth People's Hospital, and Ultrasound Research and Education Institute, Tongji University School of Medicine, Tongji University, 301 Yan-chang-zhong Road, Shanghai, 200072, P. R. China.
- National Center for International Research of Bio-targeting Theranostics, Guangxi Key Laboratory of Bio-targeting Theranostics, Collaborative Innovation Center for Tumor-targeting Theranostics, Guangxi Medical University, 22 Shuang-Yong Road, Nanning, Guangxi, 530021, P. R. China.
| | - Yan Fang
- Department of Medical Ultrasound, Shanghai Tenth People's Hospital, and Ultrasound Research and Education Institute, Tongji University School of Medicine, Tongji University, 301 Yan-chang-zhong Road, Shanghai, 200072, P. R. China
| | - Yaping He
- Department of Medical Ultrasound, Shanghai Tenth People's Hospital, and Ultrasound Research and Education Institute, Tongji University School of Medicine, Tongji University, 301 Yan-chang-zhong Road, Shanghai, 200072, P. R. China
| | - Haohao Yin
- Department of Medical Ultrasound, Shanghai Tenth People's Hospital, and Ultrasound Research and Education Institute, Tongji University School of Medicine, Tongji University, 301 Yan-chang-zhong Road, Shanghai, 200072, P. R. China
| | - Xin Guan
- Department of Medical Ultrasound, Shanghai Tenth People's Hospital, and Ultrasound Research and Education Institute, Tongji University School of Medicine, Tongji University, 301 Yan-chang-zhong Road, Shanghai, 200072, P. R. China
| | - Yinying Pu
- Department of Medical Ultrasound, Shanghai Tenth People's Hospital, and Ultrasound Research and Education Institute, Tongji University School of Medicine, Tongji University, 301 Yan-chang-zhong Road, Shanghai, 200072, P. R. China
| | - Bangguo Zhou
- Department of Medical Ultrasound, Shanghai Tenth People's Hospital, and Ultrasound Research and Education Institute, Tongji University School of Medicine, Tongji University, 301 Yan-chang-zhong Road, Shanghai, 200072, P. R. China
| | - Wenwen Yue
- Department of Medical Ultrasound, Shanghai Tenth People's Hospital, and Ultrasound Research and Education Institute, Tongji University School of Medicine, Tongji University, 301 Yan-chang-zhong Road, Shanghai, 200072, P. R. China
| | - Weiwei Ren
- Department of Medical Ultrasound, Shanghai Tenth People's Hospital, and Ultrasound Research and Education Institute, Tongji University School of Medicine, Tongji University, 301 Yan-chang-zhong Road, Shanghai, 200072, P. R. China
| | - Dou Du
- Department of Medical Ultrasound, Shanghai Tenth People's Hospital, and Ultrasound Research and Education Institute, Tongji University School of Medicine, Tongji University, 301 Yan-chang-zhong Road, Shanghai, 200072, P. R. China
| | - Hongyan Li
- Department of Medical Ultrasound, Shanghai Tenth People's Hospital, and Ultrasound Research and Education Institute, Tongji University School of Medicine, Tongji University, 301 Yan-chang-zhong Road, Shanghai, 200072, P. R. China
| | - Chang Liu
- Department of Medical Ultrasound, Shanghai Tenth People's Hospital, and Ultrasound Research and Education Institute, Tongji University School of Medicine, Tongji University, 301 Yan-chang-zhong Road, Shanghai, 200072, P. R. China
| | - Liping Sun
- Department of Medical Ultrasound, Shanghai Tenth People's Hospital, and Ultrasound Research and Education Institute, Tongji University School of Medicine, Tongji University, 301 Yan-chang-zhong Road, Shanghai, 200072, P. R. China
| | - Yu Chen
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, P. R. China.
| | - Huixiong Xu
- Department of Medical Ultrasound, Shanghai Tenth People's Hospital, and Ultrasound Research and Education Institute, Tongji University School of Medicine, Tongji University, 301 Yan-chang-zhong Road, Shanghai, 200072, P. R. China.
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