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Jung S, Park YJ, Jeon J, Kim K. Effects of L-Ornithine-L-Aspartate on Angiogenesis and Perfusion in Subacute Hind Limb Ischemia: Preliminary Study. Biomedicines 2024; 12:1787. [PMID: 39200251 PMCID: PMC11351382 DOI: 10.3390/biomedicines12081787] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2024] [Revised: 07/26/2024] [Accepted: 08/01/2024] [Indexed: 09/02/2024] Open
Abstract
The current treatment options for peripheral arterial disease (PAD) are limited due to a lack of significant high-level evidence to inform clinical decisions and unfavorable outcomes in terms of cost-effectiveness and amputation rates. In order to suggest the use of the commercially available L-Ornithine-L-Aspartate (LOLA) for treating PAD, we induced hind limb ischemia (HLI) by unilaterally ligating the femoral artery in a rat model. The rats were randomly divided into three groups, with seven rats assigned to each group: group 1 (control), group 2 (sorbitol), and group 3 (LOLA). Intraperitoneal injections were administered five times on post-operative days (PODs) 3, 5, 7, 10, and 12. Perfusion imaging was conducted on PODs 7 and 14 and compared to pre-operative perfusion imaging. Immunohistochemistry staining and Western blotting were performed after the final perfusion imaging. Group 3 showed a significant increase in perfusion, high CD31-positive capillary lumen density, and substantial overexpression of VEGF in the ischemic limb during the subacute phase of HLI. In conclusion, this study provides the first documented evidence of angiogenesis and perfusion recovery in the subacute phase of the HLI model following the administration of LOLA. With LOLA readily available on the commercial market, the implementation of LOLA treatment for PAD in humans can be expedited compared to other therapies still in the developmental stage.
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Affiliation(s)
- Sanghoon Jung
- Department of Radiology, CHA University School of Medicine, Pocheon 13488, Gyeonggi-do, Republic of Korea;
| | - Ye Jin Park
- Department of Emergency Medicine, CHA University School of Medicine, Pocheon 13488, Gyeonggi-do, Republic of Korea; (Y.J.P.); (J.J.)
| | - Jiwon Jeon
- Department of Emergency Medicine, CHA University School of Medicine, Pocheon 13488, Gyeonggi-do, Republic of Korea; (Y.J.P.); (J.J.)
| | - Kyuseok Kim
- Department of Emergency Medicine, CHA University School of Medicine, Pocheon 13488, Gyeonggi-do, Republic of Korea; (Y.J.P.); (J.J.)
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Ramirez A, Orcutt-Jahns BT, Pascoe S, Abraham A, Remigio B, Thomas N, Meyer AS. Integrative, high-resolution analysis of single cells across experimental conditions with PARAFAC2. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.07.29.605698. [PMID: 39131377 PMCID: PMC11312543 DOI: 10.1101/2024.07.29.605698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/13/2024]
Abstract
Effective tools for exploration and analysis are needed to extract insights from large-scale single-cell measurement data. However, current techniques for handling single-cell studies performed across experimental conditions (e.g., samples, perturbations, or patients) require restrictive assumptions, lack flexibility, or do not adequately deconvolute condition-to-condition variation from cell-to-cell variation. Here, we report that the tensor decomposition method PARAFAC2 (Pf2) enables the dimensionality reduction of single-cell data across conditions. We demonstrate these benefits across two distinct contexts of single-cell RNA-sequencing (scRNA-seq) experiments of peripheral immune cells: pharmacologic drug perturbations and systemic lupus erythematosus (SLE) patient samples. By isolating relevant gene modules across cells and conditions, Pf2 enables straightforward associations of gene variation patterns across specific patients or perturbations while connecting each coordinated change to certain cells without pre-defining cell types. The theoretical grounding of Pf2 suggests a unified framework for many modeling tasks associated with single-cell data. Thus, Pf2 provides an intuitive universal dimensionality reduction approach for multi-sample single-cell studies across diverse biological contexts.
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Affiliation(s)
- Andrew Ramirez
- Department of Bioengineering, University of California, Los Angeles (UCLA), CA, USA
| | | | - Sean Pascoe
- Department of Bioengineering, University of California, Los Angeles (UCLA), CA, USA
- Department of Molecular Biosciences, Northwestern University, Evanston, IL, USA
| | - Armaan Abraham
- Department of Bioengineering, University of California, Los Angeles (UCLA), CA, USA
| | | | | | - Aaron S. Meyer
- Department of Bioengineering, University of California, Los Angeles (UCLA), CA, USA
- Jonsson Comprehensive Cancer Center, UCLA, CA, USA
- Eli and Edythe Broad Center of Regenerative Medicine and Stem Cell Research, UCLA, CA, USA
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Chen Q, Chen J, Li J, Cheng Y, Zhang R, Liu Z. Recent advances of oxidative stress in thromboangiitis obliterans: biomolecular mechanisms, biomarkers, sources and clinical applications. Thromb Res 2023; 230:64-73. [PMID: 37639784 DOI: 10.1016/j.thromres.2023.08.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 07/29/2023] [Accepted: 08/21/2023] [Indexed: 08/31/2023]
Abstract
Oxidative stress (OS) has been identified as a key factor in the development of Thromboangiitis Obliterans (TAO). The detection of OS levels in clinical and scientific research practice is mainly based on the measurement of oxidative stress such as reactive oxygen species (ROS), reactive nitrogen species (RNS) and lipid peroxides. These markers are typically assessed through a combination of physical and chemical methods. Smoking is known to the state of OS in TAO, and OS levels are significantly increased in smokers due to inadequate antioxidant protection, which leads to the expression of apoptotic proteins and subsequent cell injury, thrombosis and limb ischemia. There, understanding the role of OS in the pathogenesis of TAO may provide insights into the etiology of TAO and a basis for its prevention and treatment.
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Affiliation(s)
- Qi Chen
- Guangdong Provincial Key Laboratory of Translational Cancer Research of Chinese Medicines, Joint International Research Laboratory of Translational Cancer Research of Chinese Medicines, International Institute for Translational Chinese Medicine, School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China.
| | - Jing Chen
- Guangzhou Institute of Cardiovascular Disease, Guangdong Key Laboratory of Vascular Diseases, State Key Laboratory of Respiratory Disease, The Second Affiliated Hospital, Guangzhou Medical University, Guangzhou, China.
| | - Jiahua Li
- Guangdong Provincial Key Laboratory of Translational Cancer Research of Chinese Medicines, Joint International Research Laboratory of Translational Cancer Research of Chinese Medicines, International Institute for Translational Chinese Medicine, School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China.
| | - Yuanyuan Cheng
- Guangdong Provincial Key Laboratory of Translational Cancer Research of Chinese Medicines, Joint International Research Laboratory of Translational Cancer Research of Chinese Medicines, International Institute for Translational Chinese Medicine, School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China.
| | - Rong Zhang
- Guangdong Provincial Key Laboratory of Translational Cancer Research of Chinese Medicines, Joint International Research Laboratory of Translational Cancer Research of Chinese Medicines, International Institute for Translational Chinese Medicine, School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China.
| | - Zhongqiu Liu
- Guangdong Provincial Key Laboratory of Translational Cancer Research of Chinese Medicines, Joint International Research Laboratory of Translational Cancer Research of Chinese Medicines, International Institute for Translational Chinese Medicine, School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China.
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Fazeli B, Keramat S, Assadi L, Taheri H. Angiogenesis induction in Buerger's disease: a disease management double-edged sword? Orphanet J Rare Dis 2019; 14:189. [PMID: 31383033 PMCID: PMC6683384 DOI: 10.1186/s13023-019-1166-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2019] [Accepted: 07/26/2019] [Indexed: 01/31/2023] Open
Abstract
Due to unknown aetiology of Thromboangiitis obliterans (TAO), its effectively treating is challenging. However, angiogenesis induction is one of the acceptable treatments for TAO patients. Recently, we have noticed that TAO patients who were under long-term treatment with angiogenesis-inducing medication showed considerable improvement in terms of healing chronic ulcers over the course of one to 2 years of treatment. However, some of them developed dermal gangrene despite the warming of their feet, with or without palpable pulses in the extremities, and with hair growth on the affected skin. Unfortunately, following the progression of dermal gangrene, some of these patients had to undergo amputation and limb loss. During histopathological evaluation, we detected some changes in the amputee TAO patients under long-term angiogenic medical treatment that were not present in amputee TAO patients who had not received any treatment for many years. The greatest pathological changes were observed in the microvascular of the skin, appearing as a proliferation of endothelial cells, NETosis and thrombus formation inside the vessels with proliferation of endothelial cells. The immunohistochemistry for CD31 and Ki67 as markers of vascular endothelium differentiation and cell mitosis confirmed the proliferation of endothelial cells. However, in the patients who had not received any treatment for years the typical pathology view of BD, including preserved vascular architecture with infiltration of inflammatory cells and inflammatory cells inside the thrombus, organised thrombus with recanalisation and intimal thickening was observed. Further longitudinal cohort studies regarding long-term treatment with angiogenic medications for TAO in different geographic areas are highly recommended.
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Affiliation(s)
- Bahare Fazeli
- Immunology Research Center, Inflammation and Inflammatory Diseases Division, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran. .,Vascular Independent Research and Education, European Foundation, Milan, Italy.
| | - Shayan Keramat
- Hematology Department, Imam Reza Hospital, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Ladan Assadi
- Pathology department, 17Shahrivar Hospital, Mashhad, Iran
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Therapeutic potential of natural compounds in inflammation and chronic venous insufficiency. Eur J Med Chem 2019; 176:68-91. [PMID: 31096120 DOI: 10.1016/j.ejmech.2019.04.075] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Revised: 04/30/2019] [Accepted: 04/30/2019] [Indexed: 01/19/2023]
Abstract
The term varicose vein refers to the twisted and swollen vein visible under the skin surface which occurs most commonly in the leg. Epidemiological studies report a varying percentage of incidences from 2 to 56% in men and <1-60% in women. Venous insufficiency is most often caused by the damage to the valves and walls of the veins. The mechanism of varicose vein formation is complex. It is, however, based on hypotensive blood vessels, hypoxia, and other mechanisms associated with inflammation. This work describes mechanisms related to the formation and development of the varicose vein. It discusses risk factors, pathogenesis of chronic venous disease, markers of the epithelial and leukocyte activation, state of hypoxia and inflammation, reactive oxygen species (ROS) generation, and oxidative stress. Additionally, this paper describes substances of plant origin used in the treatment of venous insufficiency. It also considers the structure of the molecules, their properties, and their mechanisms of action, the structure-activity relationship and chemical properties of flavonoids and other substances. The flavonoids include quercetin derivatives, micronized purified flavonoid fraction (Daflon), natural pine bark extract (Pycnogenol), and others such as triterpene saponine, extracts from Ruscus aculeatus and Centella asiatica, Ginkgo biloba extract, coumarin dereivatives that are used in chronic venous insufficiency. Flavonoids are natural substances found in plants, including fruits, vegetables, flowers, and others. They are important to the circulatory system and critical to blood vessels and the blood flow. Additionally, they have antioxidant, antiinflammatory properties.
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Xia JP, Wang S, Zhang JS. The anti-inflammatory and anti-oxidative effects of conbercept in treatment of macular edema secondary to retinal vein occlusion. Biochem Biophys Res Commun 2018; 508:1264-1270. [PMID: 30558792 DOI: 10.1016/j.bbrc.2018.12.049] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Accepted: 12/06/2018] [Indexed: 12/15/2022]
Abstract
To investigate the effects of conbercept on inflammatory and oxidative response in macular edema secondary to retinal vein occlusion (RVO-ME). Retinal microvasculature were detected by optical coherence tomographic angiography (OCTA). The inflammation related factors including prostaglandin E1 (PGE1), prostaglandin E2 (PGE2), prostaglandin F2a (PGF2a), intercellular cell adhesion molecule-1 (ICAM-1) and macrophage inflammatory protein-1 (MIP-1) were determined in human and mice with RVO-ME. OCTA images showed that capillary non-perfusion, enlargement of the foveal avascular zone, telangiectatic vessels and some forms of intraretinal edema in RVO-ME and all these were alleviated by conbercept treatment. PGE1, PGE2, PGF2a, ICAM-1 and MIP-1 in aqueous fluid extracted from RVO-ME patients was significantly increased compared with non-RVO subjects, intravitreal injection of conbercept partly reduced ICAM-1 and MIP-1 levels but not PGE1, PGE2 and PGF2a. The glutathione level was reduced in aqueous fluid extracted from RVO-ME patients but was restored after conbercept treatment. The inflammation, angiogenesis and ROS generation was increased in RVO-ME mice, conbercept partly inhibited these effects. Mechanistically, conbercept inhibited vascular endothelial growth factor (VEGF), ICAM-1, MIP-1, NOX-1 and NOX-4 protein expressions, but not PGE1, PGE2 and PGF2a expressions. Conbercept alleviates RVO-ME through inhibiting inflammation, angiogenesis and oxidative responses. These findings further reveals the molecular mechanism of conbercept for treatment of RVO-ME.
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Affiliation(s)
- Jian-Ping Xia
- Department of Ophthalmology, The Fourth Affiliated Hospital of China Medical University, Eye Hospital of China Medical University, Shenyang, 110005, China; Department of Ophthalmology, Shenyang Aier Eye Hospital, Shenyang, 110043, China
| | - Shuai Wang
- Department of Ophthalmology, Second Affiliated Hospital of Dalian Medical University, Dalian, 116023, China.
| | - Jin-Song Zhang
- Department of Ophthalmology, The Fourth Affiliated Hospital of China Medical University, Eye Hospital of China Medical University, Shenyang, 110005, China.
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Li ZC, Cai YZ, Tang ZG, Zuo PL, Liu RB, Liu F. Lipo-prostaglandin E1 improves renal hypoxia evaluated by BOLD-MRI in patients with diabetic kidney disease. Clin Imaging 2018; 50:239-242. [PMID: 29689479 DOI: 10.1016/j.clinimag.2018.04.015] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2017] [Revised: 04/12/2018] [Accepted: 04/16/2018] [Indexed: 02/05/2023]
Abstract
OBJECTIVE To evaluate the effect of lipo-PGE1 on renal hypoxia in patients with DKD by BOLD-MRI. MATERIALS AND METHODS All patients were divided into DKD group and CKD-without-diabetes group. All patients received intravenous 10 μg lipo-PGE1 once daily for 14 days. BOLD-MRI was performed before and after lipo-PGE1 administration to acquire renal CR2* and MR2* values. RESULTS Renal MR2* value in DKD group after lipo-PGE1 treatment were significantly decreased compared with the baseline. However, no significant differences in MR2* values were found in the CKD-without-diabetes group. CONCLUSIONS Lipo-PGE1 was shown to improve kidney medullary oxygenation in patients with DKD.
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Affiliation(s)
- Zhi-Cheng Li
- Department of Nephrology, West China Hospital of Sichuan University, Chengdu, Sichuan 610041, China; Department of Nephrology, Zigong First People's Hospital, Zigong, Sichuan 643000, China
| | - Yu-Zhe Cai
- Department of Radiology, West China Hospital of Sichuan University, No. 37 Guoxue Street, Wuhou District, Chengdu, Sichuan 610041, China
| | - Zhi-Gang Tang
- Department of Nephrology, Zigong First People's Hospital, Zigong, Sichuan 643000, China
| | - Pan-Li Zuo
- Siemens Healthcare, MR Collaboration NE Asia, Beijing, China
| | - Rong-Bo Liu
- Department of Radiology, West China Hospital of Sichuan University, No. 37 Guoxue Street, Wuhou District, Chengdu, Sichuan 610041, China
| | - Fang Liu
- Department of Nephrology, West China Hospital of Sichuan University, Chengdu, Sichuan 610041, China.
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Short Oxygenated Warm Perfusion With Prostaglandin E1 Administration Before Cold Preservation as a Novel Resuscitation Method for Liver Grafts From Donors After Cardiac Death in a Rat In Vivo Model. Transplantation 2017; 100:1052-8. [PMID: 26950723 DOI: 10.1097/tp.0000000000001127] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
BACKGROUND We previously demonstrated that short oxygenated warm perfusion (SOWP) prevented warm ischemia-reperfusion injury in rat livers from donors after cardiac death (DCDs) in an ex vivo model. In the present study, we aimed to examine the in vivo effects of SOWP and SOWP with prostaglandin E1 (PGE1) in DCD rat liver transplants. METHODS We performed liver transplantation after 6-hour cold preservation using grafts retrieved from DCD rats, divided into nontreatment (NT), SOWP, and SOWP with PGE1 (SOWP + PG) treatment groups. The SOWP grafts were perfused with oxygenated buffer at 37°C for 30 minutes before cold preservation. Prostaglandin E1 was added to the SOWP + PG group perfusate. Eleven liver transplants from each group were performed to evaluate graft function and survival; 5 rats were used for data collection after 1-hour reperfusion, and 6 rats were used for the survival study. As a positive control, the same experiment was performed in a heart-beating donor group. RESULTS In both the SOWP and SOWP + PG groups, serum liver enzymes, intercellular adhesion molecule 1 levels, and cellular damage were significantly decreased compared with the NT group. In the SOWP + PG group, bile production and energy status were significantly improved compared with the NT group. The 4-week survival was 0% (0/6), 67% (4/6), 83% (5/6), and 100% (6/6) in the NT, SOWP, SOWP + PG, and heart-beating donor group, respectively. CONCLUSIONS Short oxygenated warm perfusion before cold preservation and the addition of PGE1 to SOWP were thus beneficial in an in vivo rat model.
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Ling L, Zhang S, Ji Z, Huang H, Yao G, Wang M, He R, Deng W, Fang L. Therapeutic effects of lipo-prostaglandin E1 on angiogenesis and neurogenesis after ischemic stroke in rats. Int J Neurosci 2015; 126:469-77. [PMID: 26000823 DOI: 10.3109/00207454.2015.1031226] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Previous studies have demonstrated that prostaglandin E1 (PGE1) has a neuroprotective effect on cerebral ischemia. However, it remains unknown whether PGE1 promotes angiogenesis and neurogenesis after ischemic stroke. In this study, adult male Sprague-Dawley rats were subjected to permanently distal middle cerebral artery occlusion (MCAO). Rats were treated with lipo-prostaglandin E1(lipo-PGE1, 10 μg/kg/d) or the same volume of 0.9% saline starting 24 hours after MCAO daily for 6 consecutive days. All rats were injected 5'-bromo-2'-deoxyuridine (BrdU, 50 mg/kg) intraperitoneally every 12 hours for 3 consecutive days before being sacrificed. At 7 and 14 days after MCAO or sham-operation, rats were sacrificed. Post-stroke neurological outcome, infarction volume, angiogenesis and neurogenesis were evaluated. Treatment with lipo-PGE1 significantly increased the vascular density in the peri-infarct areas at 7 and 14 days after MCAO. The lipo-PGE1 treatment significantly enhanced the proliferation and migration of endogenous neural stem cells in the ipsilateral subventricular zone. The neural stem cells associated with blood vessels closely within a neurovascular niche in lipo-PGE1-treated rats after stroke. The lipo-PGE1 treatment also significantly improved the neurological recovery after MCAO. These results indicate that treatment with lipo-PGE1 promotes post-stroke angiogenesis, neurogenesis and their interaction, which would contribute to neurological recovery after cerebral infarction. Our study provides novel experimental evidences for the neuroprotective roles of PGE1 in ischemic stroke.
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Affiliation(s)
- Li Ling
- a 1 Department of Neurology, Guangzhou Red Cross Hospital, Medical College , Jinan University , Guangzhou , P.R. China
| | - Suping Zhang
- a 1 Department of Neurology, Guangzhou Red Cross Hospital, Medical College , Jinan University , Guangzhou , P.R. China
| | - Zhangge Ji
- a 1 Department of Neurology, Guangzhou Red Cross Hospital, Medical College , Jinan University , Guangzhou , P.R. China
| | - Huihong Huang
- a 1 Department of Neurology, Guangzhou Red Cross Hospital, Medical College , Jinan University , Guangzhou , P.R. China
| | - Gang Yao
- b 2 Department of Ophthalmology , The People's Hospital of Guangxi Zhuang Autonomous Region , Nanning , P.R. China
| | - Muzhen Wang
- a 1 Department of Neurology, Guangzhou Red Cross Hospital, Medical College , Jinan University , Guangzhou , P.R. China
| | - Rui He
- a 1 Department of Neurology, Guangzhou Red Cross Hospital, Medical College , Jinan University , Guangzhou , P.R. China
| | - Wanqing Deng
- a 1 Department of Neurology, Guangzhou Red Cross Hospital, Medical College , Jinan University , Guangzhou , P.R. China
| | - Li Fang
- c 3 Department of Pathology, Guangzhou Red Cross Hospital, Medical College , Jinan University , Guangzhou , P.R. China
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Eo S, Kwon C, Lee H, Cho S, Kim J, Baek G, Yeo J, Lim C. Quantification of the effect of Lipo-PGE1 on angiogenesis. J Plast Reconstr Aesthet Surg 2014; 68:104-12. [PMID: 25448364 DOI: 10.1016/j.bjps.2014.09.035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2014] [Revised: 07/07/2014] [Accepted: 09/15/2014] [Indexed: 10/24/2022]
Abstract
Fifteen rabbits were used to assess the effect of Lipo-PGE1 on neovascularization. Merocel(®) and Alloderm(®) of the same size were implanted separately under the back skin to act as matrices for vessel growth. Lipo-PGE1 was injected intravenously for 2 weeks in an experimental group of eight rabbits, and they were compared with a control group of seven untreated animals. Blood flow was measured using the (99m)TcO4(-) clearance technique. The mean blood clearance halftime (T1/2) and washout radioactivity were measured. Newly formed vessels were counted by CD31. The mean clearance halftime was 4005 ± 2161.3 and 13840 ± 4644.6 s in the experimental and control group, respectively, in the 1 × 2 × 1.5-cm-sized implants (p = 0.0125), and 1560 ± 1174.7 and 3405 ± 807.03 s, respectively, in the 2 × 2 × 1.5-cm-sized implants (p = 0.0413). Histological examinations revealed that the mean numbers of newly formed vessels in the experimental and control groups were 11 ± 1.58 and 7.8 ± 1.71, respectively, in the 1 × 2 × 1.5-cm-sized implants (p = 0.0501), and 20.19 ± 12.47 and 12.33 ± 3.25, respectively, in the 2 × 2 × 1.5-cm-sized implants (p = 0.02679). Lipo-PGE1 was found to be effective in promoting angiogenesis in a rabbit matrix model.
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Affiliation(s)
- SuRak Eo
- Department of Plastic and Reconstructive Surgery, DongGuk University Graduate School of Medicine, Seoul, South Korea.
| | - Chan Kwon
- Department of Plastic and Reconstructive Surgery, DongGuk University Graduate School of Medicine, Seoul, South Korea
| | - HyunJic Lee
- Department of Plastic and Reconstructive Surgery, DongGuk University Graduate School of Medicine, Seoul, South Korea
| | - SangHun Cho
- Department of Plastic and Reconstructive Surgery, DongGuk University Graduate School of Medicine, Seoul, South Korea
| | - JinYoung Kim
- Department of Orthopaedic Surgery, DongGuk University Graduate School of Medicine, Seoul, South Korea
| | - GooHyun Baek
- Department of Orthopaedic Surgery, Seoul National University Hospital, Seoul, South Korea
| | - JeongSeok Yeo
- Department of Nuclear Medicine, DongGuk University Graduate School of Medicine, Seoul, South Korea
| | - ChiYeon Lim
- Department of Clinical Trial Test, DongGuk University Graduate School of Medicine, Seoul, South Korea
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Arya D, Chang S, DiMuzio P, Carpenter J, Tulenko TN. Sphingosine-1-phosphate promotes the differentiation of adipose-derived stem cells into endothelial nitric oxide synthase (eNOS) expressing endothelial-like cells. J Biomed Sci 2014; 21:55. [PMID: 24898615 PMCID: PMC4064270 DOI: 10.1186/1423-0127-21-55] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2014] [Accepted: 05/15/2014] [Indexed: 03/02/2023] Open
Abstract
BACKGROUND Adipose tissue provides a readily available source of autologous stem cells. Adipose-derived stem cells (ASCs) have been proposed as a source for endothelial cell substitutes for lining the luminal surface of tissue engineered bypass grafts. Endothelial nitric oxide synthase (eNOS) is a key protein in endothelial cell function. Currently, endothelial differentiation from ASCs is limited by poor eNOS expression. The goal of this study was to investigate the role of three molecules, sphingosine-1-phosphate (S1P), bradykinin, and prostaglandin-E1 (PGE1) in ASC endothelial differentiation. Endothelial differentiation markers (CD31, vWF and eNOS) were used to evaluate the level of ASCs differentiation capability. RESULTS ASCs demonstrated differentiation capability toward to adipose, osteocyte and endothelial like cell phenotypes. Bradykinin, S1P and PGE were used to promote differentiation of ASCs to an endothelial phenotype. Real-time PCR showed that all three molecules induced significantly greater expression of endothelial differentiation markers CD31, vWF and eNOS than untreated cells. Among the three molecules, S1P showed the highest up-regulation on endothelial differentiation markers. Immunostaining confirmed presence of more eNOS in cells treated with S1P than the other groups. Cell growth measurements by MTT assay, cell counting and EdU DNA incorporation suggest that S1P promotes cell growth during ASCs endothelial differentiation. The S1P1 receptor was expressed in ASC-differentiated endothelial cells and S1P induced up-regulation of PI3K. CONCLUSIONS S1P up-regulates endothelial cell markers including eNOS in ASCs differentiated to endothelial like cells. This up-regulation appears to be mediated by the up-regulation of PI3K via S1P1 receptor. ASCs treated with S1P offer promising use as endothelial cell substitutes for tissue engineered vascular grafts and vascular networks.
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Affiliation(s)
| | | | | | | | - Thomas N Tulenko
- Department of Surgery, Cooper University Hospital and Cooper Medical School of Rowan University, 3 Cooper Plaza, Camden, NJ 08103, USA.
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Efecto del alprostadil en los cultivos de músculo esquelético isquémico. Estudio proteómico comparativo frente a músculo sano. ANGIOLOGIA 2014. [DOI: 10.1016/j.angio.2013.12.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Suzuki K, Nishi K, Takabuchi S, Kai S, Matsuyama T, Kurosawa S, Adachi T, Maruyama T, Fukuda K, Hirota K. Differential roles of prostaglandin E-type receptors in activation of hypoxia-inducible factor 1 by prostaglandin E1 in vascular-derived cells under non-hypoxic conditions. PeerJ 2013; 1:e220. [PMID: 24349900 PMCID: PMC3845874 DOI: 10.7717/peerj.220] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2013] [Accepted: 11/11/2013] [Indexed: 11/24/2022] Open
Abstract
Prostaglandin E1 (PGE1), known pharmaceutically as alprostadil, has vasodilatory properties and is used widely in various clinical settings. In addition to acute vasodilatory properties, PGE1 may exert beneficial effects by altering protein expression of vascular cells. PGE1 is reported to be a potent stimulator of angiogenesis via upregulation of VEGF expression, which is under the control of the transcription factor hypoxia-inducible factor 1 (HIF-1). However, the molecular mechanisms behind the phenomenon are largely unknown. In the present study, we investigated the mechanism by which PGE1 induces HIF-1 activation and VEGF gene expression in human aortic smooth muscle cells (HASMCs) and human umbilical vein endothelial cells (HUVECs), both vascular-derived cells. HUVECs and HASMCs were treated with PGE1 at clinically relevant concentrations under 20% O2 conditions and HIF-1 protein expression was investigated. Expression of HIF- 1α protein and the HIF-1-downstream genes were low under 20% O2 conditions and increased in response to PGE1 treatment in both HUVECs and HASMCs in a dose- and time-dependent manner under 20% O2 conditions as comparable to exposure to 1% O2 conditions. Studies using EP-receptor-specific agonists and antagonists revealed that EP1 and EP3 are critical to PGE1-induced HIF-1 activation. In vitro vascular permeability assays using HUVECs indicated that PGE1 increased vascular permeability in HUVECs. Thus, we demonstrate that PGE1 induces HIF- 1α protein expression and HIF-1 activation under non-hypoxic conditions and also provide evidence that the activity of multiple signal transduction pathways downstream of EP1 and EP3 receptors is required for HIF-1 activation.
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Affiliation(s)
- Kengo Suzuki
- Department of Anesthesia, Kyoto University Hospital , Kyoto , Japan ; Department of Anesthesiology, Tohoku University Hospital , Sendai , Japan
| | - Kenichiro Nishi
- Department of Anesthesiology, Kansai Medical University , Hirakata, Osaka , Japan
| | - Satoshi Takabuchi
- Department of Anesthesiology, Kansai Medical University , Hirakata, Osaka , Japan
| | - Shinichi Kai
- Department of Anesthesia, Kyoto University Hospital , Kyoto , Japan
| | | | - Shin Kurosawa
- Department of Anesthesiology, Tohoku University Hospital , Sendai , Japan
| | - Takehiko Adachi
- Department of Anesthesia, Tazuke Kofukai Medical Research Institute Kitano Hospital , Osaka , Japan
| | - Takayuki Maruyama
- Minase Research Institutes, Research Headquarters, Ono Pharmaceutical , Osaka , Japan
| | - Kazuhiko Fukuda
- Department of Anesthesia, Kyoto University Hospital , Kyoto , Japan
| | - Kiichi Hirota
- Department of Anesthesiology, Kansai Medical University , Hirakata, Osaka , Japan
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Takenaga M, Ishihara T, Ohta Y, Tokura Y, Hamaguchi A, Igarashi R, Mizushima T. Nano PGE1 promoted the recovery from spinal cord injury-induced motor dysfunction through its accumulation and sustained release. J Control Release 2010; 148:249-54. [DOI: 10.1016/j.jconrel.2010.08.003] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2010] [Revised: 07/30/2010] [Accepted: 08/04/2010] [Indexed: 11/16/2022]
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15
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Development of systemic-to-pulmonary collateral arteries in a patient with hypoplastic left cardiac syndrome after bilateral pulmonary artery banding. Cardiol Young 2010; 20:465-7. [PMID: 20426895 DOI: 10.1017/s1047951110000557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
We describe systemic-to-pulmonary collateral arteries that developed after bilateral pulmonary artery banding in a patient with hypoplastic left cardiac syndrome. The growth of collateral arteries should be evaluated carefully because bilateral pulmonary artery banding under prostaglandin E1 administration is considered an initial palliative option.
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16
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Protective effects of prostaglandin E1 on human umbilical vein endothelial cell injury induced by hydrogen peroxide. Acta Pharmacol Sin 2010; 31:485-92. [PMID: 20305680 DOI: 10.1038/aps.2010.23] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
AIM To investigate the protective effects of prostaglandin E(1) (PGE(1)) against H(2)O(2)-induced oxidative damage on human umbilical vein endothelial cells (HUVECs). METHODS HUVECs were pretreated with PGE(1) (0.25, 0.50, and 1.00 micromol/L) for 24 h and exposed to H(2)O(2) (200 micromol/L) for 12 h, and cell viability was measured by the MTT assay. LDH, NO, SOD, GSH-Px, MDA, ROS, and apoptotic percentage were determined. eNOS expression was measured by Western blotting and real-time PCR. RESULTS PGE(1) (0.25-1.00 micromol/L) was able to markedly restore the viability of HUVECs under oxidative stress, and scavenged intracellular reactive oxygen species induced by H(2)O(2). PGE(1) also suppressed the production of lipid peroxides, such as MDA, restored the activities of endogenous antioxidants including SOD and GSH-Px, and inhibited cell apoptosis. In addition, PGE(1) significantly increased NO content, eNOS protein, and mRNA expression. CONCLUSION PGE(1) effectively protected endothelial cells against oxidative stress induced by H(2)O(2), an activity that might depend on the up-regulation of NO expression.
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17
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Tranquilli AL, Landi B. The origin of pre-eclampsia: from decidual "hyperoxia" to late hypoxia. Med Hypotheses 2010; 75:38-46. [PMID: 20171021 DOI: 10.1016/j.mehy.2010.01.024] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2010] [Accepted: 01/20/2010] [Indexed: 11/24/2022]
Abstract
Normal gestation implants on a relatively hypoxic deciduas so that trophoblast deeply invades endometrium and angiogenesis seeks for oxygen supply. If implantation occurs before those hypoxic conditions occur, trophoblast invasion is defective, due to the relatively high oxygen tension in the decidual environment, laying the foundations for subsequent pre-eclampsia.
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Affiliation(s)
- Andrea L Tranquilli
- Department of Clinical Sciences, Section of Women's Health Sciences, Università Politecnica Marche, Ancona, Italy.
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18
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Esaki J, Sakaguchi H, Marui A, Bir SC, Arai Y, Huang Y, Tsubota H, Kanaji T, Ikeda T, Sakata R. Local Sustained Release of Prostaglandin E1 Induces Neovascularization in Murine Hindlimb Ischemia. Circ J 2009; 73:1330-6. [DOI: 10.1253/circj.cj-08-0999] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Jiro Esaki
- Department of Cardiovascular Surgery, Kyoto University Graduate School of Medicine
| | - Hisashi Sakaguchi
- Department of Cardiovascular Surgery, Kyoto University Graduate School of Medicine
| | - Akira Marui
- Department of Cardiovascular Surgery, Kyoto University Graduate School of Medicine
| | - Shyamal Chandra Bir
- Department of Cardiovascular Surgery, Kyoto University Graduate School of Medicine
| | - Yoshio Arai
- Department of Cardiovascular Surgery, Kyoto University Graduate School of Medicine
| | - Yuhong Huang
- Department of Cardiovascular Surgery, Kyoto University Graduate School of Medicine
| | - Hideki Tsubota
- Department of Cardiovascular Surgery, Kyoto University Graduate School of Medicine
| | | | - Tadashi Ikeda
- Department of Cardiovascular Surgery, Kyoto University Graduate School of Medicine
| | - Ryuzo Sakata
- Department of Cardiovascular Surgery, Kyoto University Graduate School of Medicine
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19
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Clarkin CE, Emery RJ, Pitsillides AA, Wheeler-Jones CPD. Evaluation of VEGF-mediated signaling in primary human cells reveals a paracrine action for VEGF in osteoblast-mediated crosstalk to endothelial cells. J Cell Physiol 2007; 214:537-44. [PMID: 17685428 DOI: 10.1002/jcp.21234] [Citation(s) in RCA: 110] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Communication between endothelial and bone cells is crucial for controlling vascular supply during bone growth, remodeling, and repair but the molecular mechanisms coordinating this intercellular crosstalk remain ill-defined. We have used primary human and rat long bone-derived osteoblast-like cells (HOB and LOB) and human umbilical vein endothelial cells (HUVEC) to interrogate the potential autocrine/paracrine role of vascular endothelial cell growth factor (VEGF) in osteoblast:endothelial cell (OB:EC) communication and examined whether prostaglandins (PG), known modulators of both OB and EC behavior, modify VEGF production. We found that the stable metabolite of PGI2, 6-keto-PGF(1alpha) and PGE2, induced a concentration-dependent increase in VEGF release by HOBs but not ECs. In ECs, VEGF promoted early ERK1/2 activation, late cyclooxygenase-2 (COX-2) protein induction, and release of 6-keto-PGF1alpha. In marked contrast, no significant modulation of these events was observed in HOBs exposed to VEGF, but LOBs clearly exhibited COX-dependent prostanoid release (10-fold less than EC) following VEGF treatment. A low level of osteoblast-like cell responsiveness to exogenous VEGF was supported by VEGFR2/Flk-1 immunolabelling and by blockade of VEGF-mediated prostanoid generation by a VEGFR tyrosine kinase inhibitor (TKI). HOB alkaline phosphatase (ALP) activity was increased following long-term non-contact co-culture with ECs and exposure of ECs to VEGF in this system further increased OB-like cell differentiation and markedly enhanced prostanoid release. Our studies confirm a paracrine EC-mediated effect of VEGF on OB-like cell behavior and are the first supporting a model in which prostanoids may facilitate this unidirectional VEGF-driven OB:EC communication. These findings may offer novel regimes for modulating pathological bone remodeling anomalies through the control of the closely coupled vascular supply.
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Affiliation(s)
- Claire E Clarkin
- Department of Veterinary Basic Sciences, Royal Veterinary College, University of London, London, UK.
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Recipient-derived neoangiogenesis of arterioles and lymphatics in quilty lesions of cardiac allografts. Transplantation 2007; 84:1335-42. [PMID: 18049119 DOI: 10.1097/01.tp.0000287458.72440.75] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
BACKGROUND The contribution of extracardiac cells to tissue turnover in heart allografts has recently been demonstrated. Complex subendocardial infiltrates, known as Quilty lesions, are frequently observed in cardiac allografts. The origin of the different cellular components of Quilty lesions is not known. METHODS Different constituents of these lymphonodular infiltrates were analyzed with regard to donor or recipient derivation. Laser-assisted microdissection with subsequent short tandem repeat polymerase chain reaction (PCR)-based "genetic fingerprinting" was employed. Combined immunofluorescence and fluorescence in situ hybridization for sex chromosomes was performed for confirmation in cases of gender-mismatched transplantation. Expression of angiogenic factors (FGF-2, PDGF-alpha, PDGF-alpha-receptor, and VEGF-alpha) was analyzed by quantitative real-time reverse-transcription PCR and immunohistochemistry. RESULTS The inflammatory, nonvascular component of Quilty lesions was completely recipient-derived. Blood vessels were of mixed origin. Different compartments of blood vessels displayed different rates of recipient derivation (endothelium up to 50%, smooth muscle cells up to 15%). Lymphatic vessels were mainly recipient-derived. Of the angiogenic molecules, VEGF-alpha expression was significantly increased in the adjacent myocardium, compared to controls and the Quilty lesions themselves. CONCLUSIONS The inflammatory compartment of Quilty lesions is of recipient origin and shows chimeric neoangiogenesis of blood and lymphatic vessels. VEGF-alpha produced in the adjacent myocardium appears to stimulate the chimeric neoangiogenesis.
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Gensch C, Clever Y, Werner C, Hanhoun M, Böhm M, Laufs U. Regulation of endothelial progenitor cells by prostaglandin E1 via inhibition of apoptosis. J Mol Cell Cardiol 2007; 42:670-7. [PMID: 17291526 DOI: 10.1016/j.yjmcc.2006.12.017] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/22/2006] [Revised: 12/16/2006] [Accepted: 12/28/2006] [Indexed: 11/19/2022]
Abstract
Bone marrow derived endothelial progenitor cells (EPC) improve endothelial function and neoangiogenesis. Prostaglandin E1 (PGE1) is used for the treatment of patients with peripheral artery disease (PAD). However, the molecular effects are only partially understood. Treatment of C57/Bl6 mice with PGE1, 10 microg/kg BW increased the number of circulating Sca-1/VEGFR-2 positive EPC in the blood compared to vehicle (122+/-7% and 119+/-6% after 10 and 20 days). EPC in the bone marrow were upregulated to 125+/-11% (10 days) and 142+/-15% (20 days). PGE1 increased DiLDL/Lectin positive spleen-derived EPC to 170+/-20% and 174+/-14% after 10 and 20 days. Treatment with PGE1 enhanced in-vivo neoangiogenesis by 2-fold (disk assay, 218+/-27%). PGE1 enhanced the SDF-1 induced migratory capacity per number of EPC to 140+/-11%, 146+/-22% and 160+/-16% after 10, 14 and 20 days. Greater migratory capacity was associated with upregulation of expression of telomere repeat-binding factor (TRF2). EPC of PGE1-treated mice were characterized by reduced apoptosis. Similarly, PGE1 prevented H(2)O(2)-induced apoptosis in cultured human EPC. The effect is mediated by PI3-kinase. The effects of PGE1 on EPC were completely prevented by co-treatment with the NO-inhibitor L-NAME, 50 mg kg(-1) p.o. Treatment with the prostaglandin I2 derivative iloprost (10 microg/kg BW, 20 days) did not alter EPC numbers or function. Physical exercise is the basis of the treatment of patients with PAD. Voluntary running increased EPC numbers in mice. Treatment with PGE1 resulted in an additional increase of Sca-1/VEGFR-2- and DiLDL/lectin positive EPC as well as migration. n=10-24 for all groups, all effects p<0.05. In summary, prostaglandin E1 increases the number of EPC in the blood and the bone marrow in mice. The effect is additive to physical exercise, depends on nitric oxide and is characterized by reduction of PI3-kinase mediated apoptosis. PGE1-mediated upregulation of EPC is associated with improved EPC function and enhanced angiogenesis.
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Affiliation(s)
- Christoph Gensch
- Klinik für Innere Medizin III, Kardiologie, Angiologie und Internistische Intensivmedizin, Universitätsklinikum des Saarlandes, 66421 Homburg, Saar, Germany
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Parsons-Wingerter P, Chandrasekharan UM, McKay TL, Radhakrishnan K, DiCorleto PE, Albarran B, Farr AG. A VEGF165-induced phenotypic switch from increased vessel density to increased vessel diameter and increased endothelial NOS activity. Microvasc Res 2006; 72:91-100. [PMID: 16872639 DOI: 10.1016/j.mvr.2006.05.008] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2005] [Revised: 05/10/2006] [Accepted: 05/17/2006] [Indexed: 12/22/2022]
Abstract
Although vascular endothelial growth factor-165 (VEGF(165)) regulates numerous angiogenic cellular activities, its complex effects on vascular morphology are not highly quantified. By fractal-based, multiparametric branching analysis of 2D vascular pattern in the quail chorioallantoic membrane (CAM), we report that vessel density increased maximally at lower VEGF concentrations, but that vessel diameter and activity of endothelial nitric oxide synthase (eNOS) increased maximally at higher VEGF concentrations. Following exogenous application of human VEGF(165) to the CAM at embryonic day 7, vessel density and diameter were measured after 24 h at arterial end points by the fractal dimension (D(f)) and generational branching parameters for vessel area density (A(v)), vessel length density (L(v)) and vessel diameter (D(v)) using the computer code VESGEN. The VEGF-dependent phenotypic switch from normal vessels displaying increased vessel density to abnormal, dilated vessels typical of tumor vasculature and other pathologies resulted from an approximate threefold increase in VEGF concentration (1.25 to 5 microg/CAM) and correlated positively with increased eNOS activity. Relative to control specimens, eNOS activity increased maximally to 60% following VEGF treatment at 5 microg/CAM, compared to 10% at 1.25 microg/CAM, and was accompanied by no significant change in activity of inducible NOS. In summary, VEGF(165) induced a phenotypic switch from increased vessel density associated with low VEGF concentration, to increased vessel diameter and increased eNOS activity at high VEGF concentration.
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