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Lyudinina AY, Parshukova OI, Bojko ER. n-3 Polyunsaturated Fatty Acids Are Associated with Stable Nitric Oxide Metabolites in Highly Trained Athletes. Cells 2024; 13:1110. [PMID: 38994963 PMCID: PMC11240318 DOI: 10.3390/cells13131110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2024] [Revised: 06/19/2024] [Accepted: 06/25/2024] [Indexed: 07/13/2024] Open
Abstract
BACKGROUND The aim of this study was to investigate the relationships between levels of n-3 essential polyunsaturated fatty acids (n-3 PUFAs) and stable nitric oxide (NO) metabolites in the plasma of athletes. METHODS Highly trained cross-country skiers (males, n = 39) were examined. The fatty acid profile of the total plasma lipids was determined by gas chromatography. The plasma NO level was studied by a colorimetric method via reaction with Griess reagent. RESULTS A widespread deficiency of essential n-3 PUFAs in the plasma of athletes (more than 80% of the subjects) was demonstrated in association with an imbalance in the levels of nitrates (NO3) and nitrites (NO2). A lower value of n-3 linolenic acid in the plasma (0.21 mol/%) was associated with a NO3 level below the normal range (n-3 C18:3 and NO3 Rs = 0.461; p = 0.003). Higher levels of n-3 eicosapentaenoic acid (0.8 mol/%) were associated with a concentration of NO2 above the normal value (n-3 C20:5 and NO2 Rs = 0.449; p = 0.004). CONCLUSION For the first time, the participation of essential n-3 PUFAs in the nitrite-nitrate pathway of NO synthesis in highly trained skiers was demonstrated.
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Affiliation(s)
- Aleksandra Y Lyudinina
- Institute of Physiology, Komi Science Centre, Ural Branch of the Russian Academy of Sciences, FRC Komi SC UB RAS, 50 Pervomayskaya Str., 167982 Syktyvkar, Russia
| | - Olga I Parshukova
- Institute of Physiology, Komi Science Centre, Ural Branch of the Russian Academy of Sciences, FRC Komi SC UB RAS, 50 Pervomayskaya Str., 167982 Syktyvkar, Russia
| | - Evgeny R Bojko
- Institute of Physiology, Komi Science Centre, Ural Branch of the Russian Academy of Sciences, FRC Komi SC UB RAS, 50 Pervomayskaya Str., 167982 Syktyvkar, Russia
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2
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Oh S, Seo SB, Kim G, Batsukh S, Son KH, Byun K. Poly-D,L-Lactic Acid Stimulates Angiogenesis and Collagen Synthesis in Aged Animal Skin. Int J Mol Sci 2023; 24:ijms24097986. [PMID: 37175693 PMCID: PMC10178436 DOI: 10.3390/ijms24097986] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Revised: 04/21/2023] [Accepted: 04/25/2023] [Indexed: 05/15/2023] Open
Abstract
Angiogenesis promotes rejuvenation in multiple organs, including the skin. Heat shock protein 90 (HSP90), hypoxia-inducible factor-1 alpha (HIF-1α), and vascular endothelial growth factor (VEGF) are proangiogenic factors that stimulate the activities of phosphoinositide 3-kinase (PI3K), protein kinase B (AKT), and extracellular signal-regulated kinase 1/2 (ERK1/2). Poly-D,L-lactic acid (PDLLA), polynucleotide (PN), and calcium hydroxyapatite (CaHA) are dermal fillers that stimulate the synthesis of dermal collagen. However, it is not yet known whether these compounds promote angiogenesis, which leads to skin rejuvenation. Here, we evaluated whether PDLLA, PN, and CaHA stimulate angiogenesis and skin rejuvenation using H2O2-treated senescent macrophages and endothelial cells as an in vitro model for skin aging, and we used young and aged C57BL/6 mice as an in vivo model. Angiogenesis was evaluated via endothelial cell migration length, proliferation, and tube formation after conditioned media (CM) from senescent macrophages was treated with PDLLA, PN, or CaHA. Western blot showed decreased expression levels of HSP90, HIF-1α, and VEGF in senescent macrophages, but higher expression levels of these factors were found after treatment with PDLLA, PN, or CaHA. In addition, after exposure to CM from senescent macrophages treated with PDLLA, PN, or CaHA, senescent endothelial cells expressed higher levels of VEGF receptor 2 (VEGFR2), PI3K, phosphorylated AKT (pAKT), and phosphorylated ERK1/2 (pERK1/2) and demonstrated greater capacities for cell migration, cell proliferation, and tube formation. Based on the levels of 4-hydroxy-2-nonenal, the oxidative stress level was lower in the skin of aged mice injected with PDLLA, PN, or CaHA, while the tumor growth factor (TGF)-β1, TGF-β2, and TGF-β3 expression levels; the density of collagen fibers; and the skin elasticity were higher in the skin of aged mice injected with PDLLA, PN, or CaHA. These effects were greater in PDLLA than in PN or CaHA. In conclusion, our results are consistent with the hypothesis that PDLLA stimulates angiogenesis, leading to the rejuvenation of aged skin. Our study is the first to show that PDLLA, PN, or CaHA can result in angiogenesis in the aged skin, possibly by increasing the levels of HSP90, HIF-1α, and VEGF and increasing collagen synthesis.
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Affiliation(s)
- Seyeon Oh
- Functional Cellular Networks Laboratory, Lee Gil Ya Cancer and Diabetes Institute, Gachon University, Incheon 21999, Republic of Korea
| | - Suk Bae Seo
- SeoAh Song Dermatologic Clinic, Seoul 05557, Republic of Korea
| | - Gunpoong Kim
- VAIM Co., Ltd., Okcheon 29055, Republic of Korea
| | - Sosorburam Batsukh
- Functional Cellular Networks Laboratory, Lee Gil Ya Cancer and Diabetes Institute, Gachon University, Incheon 21999, Republic of Korea
- Department of Anatomy & Cell Biology, College of Medicine, Gachon University, Incheon 21936, Republic of Korea
| | - Kuk Hui Son
- Department of Thoracic and Cardiovascular Surgery, Gachon University Gil Medical Center, Gachon University, Incheon 21565, Republic of Korea
| | - Kyunghee Byun
- Functional Cellular Networks Laboratory, Lee Gil Ya Cancer and Diabetes Institute, Gachon University, Incheon 21999, Republic of Korea
- Department of Anatomy & Cell Biology, College of Medicine, Gachon University, Incheon 21936, Republic of Korea
- Department of Health Sciences and Technology, Gachon Advanced Institute for Health & Sciences and Technology (GAIHST), Gachon University, Incheon 21999, Republic of Korea
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3
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Liu JJ, Liu XY, Nie JP, Jia MQ, Yu Y, Qin N, Duan HQ. Discovery of Antimetastatic Chiral Ionone Alkaloid Derivatives Targeting HIF-1α/VEGF/VEGFR2 Pathway. ChemMedChem 2021; 16:2130-2145. [PMID: 33755334 DOI: 10.1002/cmdc.202100072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Revised: 03/07/2021] [Indexed: 11/10/2022]
Abstract
Novel chiral ionone alkaloid derivatives were synthesized and their antimetastatic effects were evaluated in human breast cancer cells using chemotaxis assay. Compared with positive control LY294002, a PI3 K inhibitor, derivatives 10 a, 11 a, 11 c, 11 g, 11 j, 11 k and 11 w exhibited significant inhibitory effects against cancer cell migration. Especially, the IC50 for compound 11 g was as low as 0.035±0.004 μM. Further investigations on compound 11 g revealed that it could exert inhibitory effects on the adhesion, migration and invasion of MDA-MB-231 cells. The mechanisms for the antitumor metastatic effects of 11 g might be through the inhibition of HIF-1α/VEGF/VEGFR2/Akt pathway, which suppressed the downstream signaling molecules, including Akt1/mTOR/p70S6K and Akt2/PKCζ/integrin β1 pathways. Taken together, chiral ionone alkaloid derivative 11 g has the potential to be developed into an antitumor metastatic agent for breast cancer.
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Affiliation(s)
- Jing-Jing Liu
- Tianjin Key Laboratory on Technologies Enabling Development Clinical Therapeutics and Diagnostics (Theragnostic), Tianjin Medical University, Tianjin, China
| | - Xin-Yao Liu
- Tianjin Key Laboratory on Technologies Enabling Development Clinical Therapeutics and Diagnostics (Theragnostic), Tianjin Medical University, Tianjin, China
| | - Jiang-Ping Nie
- Tianjin Key Laboratory on Technologies Enabling Development Clinical Therapeutics and Diagnostics (Theragnostic), Tianjin Medical University, Tianjin, China
| | - Mei-Qi Jia
- Tianjin Key Laboratory on Technologies Enabling Development Clinical Therapeutics and Diagnostics (Theragnostic), Tianjin Medical University, Tianjin, China
| | - Yang Yu
- Tianjin Key Laboratory on Technologies Enabling Development Clinical Therapeutics and Diagnostics (Theragnostic), Tianjin Medical University, Tianjin, China
| | - Nan Qin
- Tianjin Key Laboratory on Technologies Enabling Development Clinical Therapeutics and Diagnostics (Theragnostic), Tianjin Medical University, Tianjin, China
| | - Hong-Quan Duan
- Tianjin Key Laboratory on Technologies Enabling Development Clinical Therapeutics and Diagnostics (Theragnostic), Tianjin Medical University, Tianjin, China.,Research Center of Basic Medical Sciences, Tianjin Medical University, Tianjin, China
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4
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Parshukova OI, Varlamova NG, Bojko ER. Nitric Oxide Production in Professional Skiers During Physical Activity at Maximum Load. Front Cardiovasc Med 2021; 7:582021. [PMID: 33381524 PMCID: PMC7767868 DOI: 10.3389/fcvm.2020.582021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Accepted: 11/13/2020] [Indexed: 11/16/2022] Open
Abstract
The purpose of this study is to assess the production of nitric oxide in professional cross-country skiers with normotensive and hypertensive responses to physical activity at maximum load. The observation group included professional cross-country skiers (22.2 ± 7.1 years, = 107) who were current members of the national team of the Komi Republic. All the examined athletes performed the exercise test on a cycle ergometer “until exhaustion.” The following parameters were determined for each participant while they were sitting at rest, while at their anaerobic threshold level, during peak load, and during the recovery period (5th min): systolic blood pressure, diastolic blood pressure, heart rate, and the level of stable nitric oxide metabolites (nitrites, nitrates) in capillary blood samples. According to the blood pressure results, the cross-country skiers were divided into two groups. Group I included athletes with a normotensive response to stress. Group II was composed of individuals with a hypertensive response to stress. During the performance of the test “until exhaustion,” a significant (p < 0.05) increase in the amount of stable metabolites of nitric oxide was observed in the group of athletes with a normotensive response to the load compared with the group with a hypertensive response to the load. In athletes with a normotensive reaction to the load during exercise at maximum load and in the early recovery period, nitrate was prioritized in the regulation of vascular tone. The exercise test on a cycle ergometer “until exhaustion,” combined with the assessment of the levels of stable nitric oxide metabolites in plasma, can be considered a test for the early diagnosis of endothelial dysfunction in professional athletes.
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Affiliation(s)
- Olga I Parshukova
- Institute of Physiology at Komi Science Center of the Ural Branch of the Russian Academy of Sciences, Syktyvkar, Russia
| | - Nina G Varlamova
- Institute of Physiology at Komi Science Center of the Ural Branch of the Russian Academy of Sciences, Syktyvkar, Russia
| | - Evgeny R Bojko
- Institute of Physiology at Komi Science Center of the Ural Branch of the Russian Academy of Sciences, Syktyvkar, Russia
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5
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Santosa SM, Guo K, Yamakawa M, Ivakhnitskaia E, Chawla N, Nguyen T, Han KY, Ema M, Rosenblatt MI, Chang JH, Azar DT. Simultaneous fluorescence imaging of distinct nerve and blood vessel patterns in dual Thy1-YFP and Flt1-DsRed transgenic mice. Angiogenesis 2020; 23:459-477. [PMID: 32372335 DOI: 10.1007/s10456-020-09724-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Accepted: 04/23/2020] [Indexed: 02/08/2023]
Abstract
Blood vessels and nerve tissues are critical to the development and functionality of many vital organs. However, little is currently known about their interdependency during development and after injury. In this study, dual fluorescence transgenic reporter mice were utilized to observe blood vessels and nervous tissues in organs postnatally. Thy1-YFP and Flt1-DsRed (TYFD) mice were interbred to achieve dual fluorescence in the offspring, with Thy1-YFP yellow fluorescence expressed primarily in nerves, and Flt1-DsRed fluorescence expressed selectively in blood vessels. Using this dual fluorescent mouse strain, we were able to visualize the networks of nervous and vascular tissue simultaneously in various organ systems both in the physiological state and after injury. Using ex vivo high-resolution imaging in this dual fluorescent strain, we characterized the organizational patterns of both nervous and vascular systems in a diverse set of organs and tissues. In the cornea, we also observed the dynamic patterns of nerve and blood vessel networks following epithelial debridement injury. These findings highlight the versatility of this dual fluorescent strain for characterizing the relationship between nerve and blood vessel growth and organization.
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Affiliation(s)
- Samuel M Santosa
- Department of Ophthalmology and Visual Sciences, Illinois Eye and Ear Infirmary, College of Medicine, University of Illinois at Chicago, Chicago, IL, USA
| | - Kai Guo
- Department of Ophthalmology and Visual Sciences, Illinois Eye and Ear Infirmary, College of Medicine, University of Illinois at Chicago, Chicago, IL, USA
| | - Michael Yamakawa
- Department of Ophthalmology and Visual Sciences, Illinois Eye and Ear Infirmary, College of Medicine, University of Illinois at Chicago, Chicago, IL, USA
| | - Evguenia Ivakhnitskaia
- Department of Ophthalmology and Visual Sciences, Illinois Eye and Ear Infirmary, College of Medicine, University of Illinois at Chicago, Chicago, IL, USA
| | - Neeraj Chawla
- Department of Ophthalmology and Visual Sciences, Illinois Eye and Ear Infirmary, College of Medicine, University of Illinois at Chicago, Chicago, IL, USA
| | - Tara Nguyen
- Department of Ophthalmology and Visual Sciences, Illinois Eye and Ear Infirmary, College of Medicine, University of Illinois at Chicago, Chicago, IL, USA
| | - Kyu-Yeon Han
- Department of Ophthalmology and Visual Sciences, Illinois Eye and Ear Infirmary, College of Medicine, University of Illinois at Chicago, Chicago, IL, USA
| | - Masatsugu Ema
- Department of Stem Cells and Human Disease Models, Shiga University of Medical Science, Seta, Tsukinowa-cho, Otsu, Shiga, Japan
| | - Mark I Rosenblatt
- Department of Ophthalmology and Visual Sciences, Illinois Eye and Ear Infirmary, College of Medicine, University of Illinois at Chicago, Chicago, IL, USA
| | - Jin-Hong Chang
- Department of Ophthalmology and Visual Sciences, Illinois Eye and Ear Infirmary, College of Medicine, University of Illinois at Chicago, Chicago, IL, USA.
| | - Dimitri T Azar
- Department of Ophthalmology and Visual Sciences, Illinois Eye and Ear Infirmary, College of Medicine, University of Illinois at Chicago, Chicago, IL, USA.
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Bai C, Sun Y, Pan X, Yang J, Li X, Wu A, Qin D, Cao S, Zou W, Wu J. Antitumor Effects of Trimethylellagic Acid Isolated From Sanguisorba officinalis L. on Colorectal Cancer via Angiogenesis Inhibition and Apoptosis Induction. Front Pharmacol 2020; 10:1646. [PMID: 32047442 PMCID: PMC6997556 DOI: 10.3389/fphar.2019.01646] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2019] [Accepted: 12/16/2019] [Indexed: 12/24/2022] Open
Abstract
Previous studies have demonstrated that tannin could inhibit the proliferation and angiogenesis of cancer cells. However, the mechanism(s) associated with its antitumor effect remains unclear. Here, we investigated the effects of 3,3',4'-trimethylellagic acid (TMEA), a tannin compound isolated from Sanguisorba officinalis L., on the proliferation, angiogenesis, and apoptosis in cancer cells, as well as the underlying mechanism(s) related to its antitumor activity. TMEA was isolated from Sanguisorba officinalis L. by silica gel column chromatography. Molecular docking was carried out to assess active pocket binding between TMEA and vascular endothelial growth factor receptor 2 (VEGFR2). The antiangiogenic effect of TMEA on the migration and tube formation was detected in HUVECs by wound healing and tube formation assays, respectively. The antitumor effects of TMEA on the cell proliferation were determined in HepG2, A549, and SW620 cells by MTS assay in vitro and on the tumor growth of SW620 xenografts bearing in nude mice in vivo. The mRNA expression of Bcl-2, Bax, caspase-3, VEGF, PI3K, and mTOR were measured by qRT-PCR and protein expression of Bcl-2, Bax, caspase-3, VEGF, PI3K, and mTOR by Western blotting, and the protein expression of Bcl-2, Bax, caspase-3 and CD31 were detected by immunohistochemical analysis in vivo, respectively. The results showed that TMEA combined with VEGFR2 in the functional pockets of Asn223A, Gly922A, and Leu840A and inhibited the proliferation, migration, tube formation, and expression of VEGF and its downstream signaling mediators in HUVECs. TMEA also significantly inhibited the proliferation of HepG2, A549, and SW620 cancer cells in vitro, and suppressed the growth of SW620 tumors in vivo. Moreover, TMEA upregulated the expression of proapoptotic factors Bax and caspase-3 and downregulated the expression of antiapoptotic factors CD31 and Bcl-2 in cancer cells and/or tumor tissues. The data indicate that TMEA executes its anticancer activity by inducing apoptosis and inhibiting angiogenesis in cancer cells in vitro and tumor growth in vivo. The underlying anticancer mechanism is associated with the apoptotic and VEGF/PI3K/AKT/mTOR pathways.
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Affiliation(s)
- Chongfei Bai
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, China.,Department of Chinese Materia Medica, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Yueshan Sun
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, China
| | - Xianchao Pan
- Department of Medicine, School of Pharmacy, Southwest Medical University, Luzhou, China
| | - Jing Yang
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, China.,Institute of Cardiovascular Research, Key Laboratory of Medical Electrophysiology, Luzhou Key Laboratory of Activity Screening and Druggability Evaluation for Chinese Materia Medica, Luzhou, China
| | - Xiaoxuan Li
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, China
| | - Anguo Wu
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, China.,Institute of Cardiovascular Research, Key Laboratory of Medical Electrophysiology, Luzhou Key Laboratory of Activity Screening and Druggability Evaluation for Chinese Materia Medica, Luzhou, China
| | - Dalian Qin
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, China.,Institute of Cardiovascular Research, Key Laboratory of Medical Electrophysiology, Luzhou Key Laboratory of Activity Screening and Druggability Evaluation for Chinese Materia Medica, Luzhou, China
| | - Shousong Cao
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, China
| | - Wenjun Zou
- Department of Chinese Materia Medica, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Jianming Wu
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, China.,Institute of Cardiovascular Research, Key Laboratory of Medical Electrophysiology, Luzhou Key Laboratory of Activity Screening and Druggability Evaluation for Chinese Materia Medica, Luzhou, China.,Department of Pharmacy, Affiliated Hospital of Southwest Medical University, Luzhou, China
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7
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Zhang PC, Liu X, Li MM, Ma YY, Sun HT, Tian XY, Wang Y, Liu M, Fu LS, Wang YF, Chen HY, Liu Z. AT-533, a novel Hsp90 inhibitor, inhibits breast cancer growth and HIF-1α/VEGF/VEGFR-2-mediated angiogenesis in vitro and in vivo. Biochem Pharmacol 2019; 172:113771. [PMID: 31863779 DOI: 10.1016/j.bcp.2019.113771] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Accepted: 12/16/2019] [Indexed: 10/25/2022]
Abstract
The inhibition of angiogenesis is suggested to be an attractive strategy for cancer therapeutics. Heat shock protein 90 (Hsp90) is closely related to tumorigenesis as it regulates the stabilization and activated states of many client proteins that are essential for cell survival and tumor growth. Here, we investigated the mechanism whereby AT-533, a novel Hsp90 inhibitor, inhibits breast cancer growth and tumor angiogenesis. Based on our results, AT-533 suppressed the tube formation, cell migration, and invasion of human umbilical vein endothelial cells (HUVECs), and was more effective than the Hsp90 inhibitor, 17-AAG. Furthermore, AT-533 inhibited angiogenesis in the aortic ring, Matrigel plug, and chorioallantoic membrane (CAM) models. Mechanically, AT-533 inhibited the activation of VEGFR-2 and the downstream pathways, including Akt/mTOR/p70S6K, Erk1/2 and FAK, in HUVECs, and the viability of breast cancer cells and the HIF-1α/VEGF signaling pathway under hypoxia. In vivo, AT-533 also inhibited tumor growth and angiogenesis by inducing apoptosis and the HIF-1α/VEGF signaling pathway in breast cancer cells. Taken together, our findings indicate that the Hsp90 inhibitor, AT-533, suppresses breast cancer growth and angiogenesis by blocking the HIF-1α/VEGF/VEGFR-2 signaling pathway. AT-533 may thus be a potentially useful drug candidate for breast cancer therapy.
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Affiliation(s)
- Peng-Chao Zhang
- Guangdong Provincial Key Laboratory of Bioengineering Medicine, Institute of Biomedicine, College of Life Science and Technology, Jinan University, Guangzhou 510632, China
| | - Xiao Liu
- Department of Pathogenic Biology and Immunology, School of Life Sciences and Biopharmaceuticals, Guangdong Pharmaceutical University, Guangzhou 510632, China
| | - Man-Mei Li
- Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy, Jinan University, Guangzhou 510632, China
| | - Yan-Yan Ma
- Guangdong Provincial Key Laboratory of Bioengineering Medicine, Institute of Biomedicine, College of Life Science and Technology, Jinan University, Guangzhou 510632, China
| | - Hong-Tao Sun
- Department of Orthopedics, Guangdong Second Provincial General Hospital, Guangzhou 510317, China
| | - Xu-Yan Tian
- Department of Pathogenic Biology and Immunology, School of Life Sciences and Biopharmaceuticals, Guangdong Pharmaceutical University, Guangzhou 510632, China
| | - Yan Wang
- Guangdong Provincial Key Laboratory of Bioengineering Medicine, Institute of Biomedicine, College of Life Science and Technology, Jinan University, Guangzhou 510632, China
| | - Min Liu
- Guangdong Provincial Key Laboratory of Bioengineering Medicine, Institute of Biomedicine, College of Life Science and Technology, Jinan University, Guangzhou 510632, China
| | - Liang-Shun Fu
- Guangdong Provincial Key Laboratory of Bioengineering Medicine, Institute of Biomedicine, College of Life Science and Technology, Jinan University, Guangzhou 510632, China
| | - Yi-Fei Wang
- Guangdong Provincial Key Laboratory of Bioengineering Medicine, Institute of Biomedicine, College of Life Science and Technology, Jinan University, Guangzhou 510632, China
| | - Hong-Yuan Chen
- Department of Pathogenic Biology and Immunology, School of Life Sciences and Biopharmaceuticals, Guangdong Pharmaceutical University, Guangzhou 510632, China.
| | - Zhong Liu
- Guangdong Provincial Key Laboratory of Bioengineering Medicine, Institute of Biomedicine, College of Life Science and Technology, Jinan University, Guangzhou 510632, China.
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8
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Hui K, Wu S, Yue Y, Gu Y, Guan B, Wang X, Hsieh JT, Chang LS, He D, Wu K. RASAL2 inhibits tumor angiogenesis via p-AKT/ETS1 signaling in bladder cancer. Cell Signal 2018; 48:38-44. [PMID: 29702203 DOI: 10.1016/j.cellsig.2018.04.006] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Revised: 04/22/2018] [Accepted: 04/23/2018] [Indexed: 01/08/2023]
Abstract
Muscle-invasive or metastatic bladder cancer (BCa) is a life-threatening disease for patients, and tumor angiogenesis is believed to play a critical role in the progression of BCa. However, its underlying mechanism of tumor angiogenesis is still poorly understood. In this study, we discovered that RASAL2, a RAS GTPase activating protein, could inhibit BCa angiogenesis based on our shRNA/siRNA knockdown or ectopic cDNA expression experiments. Mechanistically, RASAL2 downregulation could enhance the phosphorylation of AKT and then subsequently upregulate the expression of ETS1 and VEGFA. Furthermore, there was a negative correlation between RASAL2 and VEGFA or CD31 expression in subcutaneous xenograft and human BCa specimens. Taken together, we provide a new insight into the molecular mechanism of BCa progression, in which RASAL2 can be a new therapeutic target.
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Affiliation(s)
- Ke Hui
- Department of Urology, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, PR China
| | - Shiqi Wu
- Department of Urology, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, PR China
| | - Yangyang Yue
- Department of Urology, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, PR China
| | - Yanan Gu
- Department of Urology, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, PR China
| | - Bing Guan
- Department of Urology, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, PR China
| | - Xinyang Wang
- Department of Urology, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, PR China
| | - Jer-Tsong Hsieh
- Department of Urology, University of Texas Southwestern Medical Center, Dallas 75235, TX, USA
| | - Luke S Chang
- Department of Urology, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, PR China
| | - Dalin He
- Department of Urology, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, PR China.
| | - Kaijie Wu
- Department of Urology, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, PR China.
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9
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Plasma from human volunteers subjected to remote ischemic preconditioning protects human endothelial cells from hypoxia-induced cell damage. Basic Res Cardiol 2015; 110:17. [PMID: 25716080 PMCID: PMC4341024 DOI: 10.1007/s00395-015-0474-9] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/11/2014] [Revised: 02/17/2015] [Accepted: 02/18/2015] [Indexed: 02/06/2023]
Abstract
Short repeated cycles of peripheral ischemia/reperfusion (I/R) can protect distant organs from subsequent prolonged I/R injury; a phenomenon known as remote ischemic preconditioning (RIPC). A RIPC-mediated release of humoral factors might play a key role in this protection and vascular endothelial cells are potential targets for these secreted factors. In the present study, RIPC-plasma obtained from healthy male volunteers was tested for its ability to protect human umbilical endothelial cells (HUVEC) from hypoxia–induced cell damage. 10 healthy male volunteers were subjected to a RIPC-protocol consisting of 4 × 5 min inflation/deflation of a blood pressure cuff located at the upper arm. Plasma was collected before (T0; control), directly after (T1) and 1 h after (T2) the RIPC procedure. HUVEC were subjected to 24 h hypoxia damage and simultaneously incubated with 5 % of the respective RIPC-plasma. Cell damage was evaluated by lactate dehydrogenase (LDH)-measurements. Western blot experiments of hypoxia inducible factor 1 alpha (HIF1alpha), phosphorylated signal transducer and activator of transcription 5 (STAT5), protein kinase B (AKT) and extracellular signal-related kinase 1/2 (ERK-1/2) were performed. Furthermore, the concentrations of hVEGF were evaluated in the RIPC-plasma by sandwich ELISA. Hypoxia–induced cell damage was significantly reduced by plasma T1 (p = 0.02 vs T0). The protective effect of plasma T1 was accompanied by an augmentation of the intracellular HIF1alpha (p = 0.01 vs T0) and increased phosphorylation of ERK-1/2 (p = 0.03 vs T0). Phosphorylation of AKT and STAT5 remained unchanged. Analysis of the protective RIPC-plasma T1 showed significantly reduced levels of hVEGF (p = 0.01 vs T0). RIPC plasma protects endothelial cells from hypoxia–induced cell damage and humoral mediators as well as intracellular HIF1alpha may be involved.
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10
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Enhanced Expression of Bioactive Recombinant VEGF-111 with Insertion of Intronic Sequence in Mammalian Cell Lines. Appl Biochem Biotechnol 2015; 175:3737-49. [DOI: 10.1007/s12010-015-1541-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2014] [Accepted: 02/09/2015] [Indexed: 01/08/2023]
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11
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Żebrowska A, Mizia-Stec K, Mizia M, Gąsior Z, Poprzęcki S. Omega-3 fatty acids supplementation improves endothelial function and maximal oxygen uptake in endurance-trained athletes. Eur J Sport Sci 2014; 15:305-14. [DOI: 10.1080/17461391.2014.949310] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Ren YJ, Yang L, Zhai ZH. Clinical value of inhibition of vascular endothelial growth factor in primary hepatocellular carcinoma after transcatheter arterial chemoembolization. Shijie Huaren Xiaohua Zazhi 2010; 18:1582-1587. [DOI: 10.11569/wcjd.v18.i15.1582] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Vascular endothelial growth factor (VEGF) is a well-known potent angiogenic factor that correlates with tumor invasion and metastasis. Primary hepatocellular carcinoma (PHC) is a common highly malignant vascular tumor with a very high mortality. Angiogenesis is considered to be important for PHC progression. Transarterial chemoembolization (TACE) has been proved to be effective for unresectable PHC. This paper aims to make a literature review of the recent advances in understanding the clinical value of inhibition of VEGF in PHC after interventional therapy.
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Huang G, Chen L. Tumor vasculature and microenvironment normalization: a possible mechanism of antiangiogenesis therapy. Cancer Biother Radiopharm 2009; 23:661-7. [PMID: 18986217 DOI: 10.1089/cbr.2008.0492] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Tumor antiangiogenesis therapy has been in application for more than 30 years; however, its mechanism remains obscure. An intriguing hypothesis, which has recently gained acceptance, explores the possibility that antiangiogenesis therapy may transiently normalize tumor vasculature and its microenvironment, thus enhancing chemoradiotherapy efficacy. As the equilibrium between proangiogenesis and antiangiogenesis factors is perturbed in the tumor and tips to the former, tumor vasculature tends to exhibit abnormal structure and function. Abnormal vasculature is tightly associated with an uncharacteristic microenvironment, including uneven perfusion, hypoxia, and increased interstitial fluid pressure: This malignant microenvironment hinders the delivery of chemotherapeutics to tumor cells and desensitizes the malignant cells to radiation. Antiangiogenesis therapy can reverse the imbalance and transiently normalize this microenvironment and gives a new perspective for combining antiangiogenesis therapy and traditional chemoradiotherapy.
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Affiliation(s)
- Guichun Huang
- Department of Medical Oncology, Jinling Hospital, Medical School of Nanjing University, Nanjing, People's Republic of China
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Role of uterine natural killer cells in angiogenesis of human decidua of the first-trimester pregnancy. ACTA ACUST UNITED AC 2008; 51:111-9. [PMID: 18239888 DOI: 10.1007/s11427-008-0027-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2006] [Accepted: 08/13/2007] [Indexed: 10/22/2022]
Abstract
Decidualization is accompanied by extensive angiogenesis, which is an essential step in the maturation of new blood vessels in mammalian pregnancy. The purpose of this study was to determine a distribution of uNK cells (CD56(+) uNK or CD56(bright) cells) in human decidua of the first-trimester pregnancy, and investigate whether uNK cells in human decidua could express vascular endothelial growth factor (VEGF-A) and/or angiopoietin2 (Ang2). Our immunohistochemical staining results demonstrated that a great amount of uNK (CD56(+)) cells scattered throughout the decidual stroma and near endometrial gland and spiral vessels in human decidua. The protein expression of VEGF-A and Ang2 was detected in decidual stroma cells, capillary endothelial cells and glandular cells in tissue specimens. There was a positive correlation between microvessel density (MVD) and the number of the CD56-positive uNK cells in decidual stroma, and also between the number of the CD56-positive uNK cells and VEGF-A protein expression in the tissue. In addition, we found that uNK cells in human decidua could express VEGF-A mRNA, but not Ang2 mRNA, in isolated uNK cells in human decidua of the first-trimester gestation by combination of LCM and Nested-PCR. Our study indicated that uNK cells, through expressing VEGF-A, may play an important role in the angiogenic response at the time of human decidualization and early placenta development.
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Suzuki J. Microvascular angioadaptation after endurance training with L-arginine supplementation in rat heart and hindleg muscles. Exp Physiol 2005; 90:763-71. [PMID: 16002497 DOI: 10.1113/expphysiol.2005.031138] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
This study was designed to examine whether dietary L-arginine supplementation modulates exercise-induced angiogenesis and vascular endothelial growth factor (VEGF) expression in female Wistar rats. Exercise training (running) lasted for 6 weeks at 25 m min-1 on a 20% gradient for 10-60 min day-1. Rats in the L-arginine-treated groups drank water containing 4% L-arginine. Histochemical identification of capillary profiles showed that training with L-arginine significantly increased the capillary/fibre (C/F) ratio in the subendocardium of the left ventricle, whereas training alone did not. Because of a significantly higher fibre cross-sectional area, a concomitant, but not significant, decrease in capillary density was also observed. In the hindleg muscles, training with L-arginine significantly increased the C:F ratio, although the degree of change was the same as that observed after training alone. Western blot analysis showed that training with L-arginine significantly increased VEGF protein expression by 1.7-fold in the left ventricle, while the increase with training alone was insignificant. In the soleus muscle, although VEGF protein expression was elevated insignificantly after training (2.8-fold), training with L-arginine significantly increased the protein levels (3.8-fold). Tissue endothelial nitric oxide synthase protein levels did not changed after either training or L-arginine treatment. The present results suggest that L-arginine supplementation causes additional effects on exercise-induced angiogenesis in the rat heart by promoting VEGF expression.
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Affiliation(s)
- Junichi Suzuki
- Laboratory of Sports Physiology, Research and Education Center for Winter Sports, Hokkaido University of Education, Ainosato 5-3, Kita-ku, Sapporo, Hokkaido 002-8502, Japan.
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