1
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Curtis GH, Reeve RE, Crespi EJ. Leptin signaling promotes blood vessel formation in the Xenopus tail during the embryo-larval transition. Dev Biol 2024; 512:26-34. [PMID: 38705558 DOI: 10.1016/j.ydbio.2024.05.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Revised: 04/30/2024] [Accepted: 05/02/2024] [Indexed: 05/07/2024]
Abstract
The signals that regulate peripheral blood vessel formation during development are still under investigation. The hormone leptin promotes blood vessel formation, adipose tissue establishment and expansion, tumor growth, and wound healing, but the underlying mechanisms for these actions are currently unknown. We investigated whether leptin promotes angiogenesis in the developing tail fin using embryonic transgenic xflk-1:GFP Xenopus laevis, which express a green fluorescent protein on vascular endothelial cells to mark blood vessels. We found that leptin protein is expressed in endothelial cells of developing blood vessels and that leptin treatment via injection increased phosphorylated STAT3 signaling, which is indicative of leptin activation of its receptor, in blood vessels of the larval tail fin. Leptin administration via media increased vessel length, branching, and reconnection with the cardinal vein, while decreased leptin signaling via immunoneutralization had an opposing effect on vessel development. We also observed disorganization of major vessels and microvessels of the tail fin and muscle when leptin signaling was decreased. Reduced leptin signaling lowered mRNA expression of cenpk, gpx1, and mmp9, markers for cell proliferation, antioxidation, and extracellular matrix remodeling/cell migration, respectively, in the developing tail, providing insight into three possible mechanisms underlying leptin's promotion of angiogenesis. Together these results illustrate that leptin levels are correlated with embryonic angiogenesis and that leptin coordinates multiple aspects of blood vessel growth and development, showing that leptin is an important morphogen during embryonic development.
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Affiliation(s)
- Grace H Curtis
- School of Biological Sciences, Center for Reproductive Biology, Washington State University, Pullman, WA, USA, 99164.
| | - Robyn E Reeve
- School of Biological Sciences, Center for Reproductive Biology, Washington State University, Pullman, WA, USA, 99164
| | - Erica J Crespi
- School of Biological Sciences, Center for Reproductive Biology, Washington State University, Pullman, WA, USA, 99164
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2
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Rashidi S, Bagherpour G, Abbasi-Malati Z, Khosrowshahi ND, Chegeni SA, Roozbahani G, Lotfimehr H, Sokullu E, Rahbarghazi R. Endothelial progenitor cells for fabrication of engineered vascular units and angiogenesis induction. Cell Prolif 2024:e13716. [PMID: 39051852 DOI: 10.1111/cpr.13716] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2024] [Revised: 06/21/2024] [Accepted: 07/03/2024] [Indexed: 07/27/2024] Open
Abstract
The promotion of vascularization and angiogenesis in the grafts is a crucial phenomenon in the healing process and tissue engineering. It has been shown that stem cells, especially endothelial progenitor cells (EPCs), can stimulate blood vessel formation inside the engineered hydrogels after being transplanted into the target sites. The incorporation of EPCs into the hydrogel can last the retention time, long-term survival, on-target delivery effects, migration and differentiation into mature endothelial cells. Despite these advantages, further modifications are mandatory to increase the dynamic growth and angiogenesis potential of EPCs in in vitro and in vivo conditions. Chemical modifications of distinct composites with distinct physical properties can yield better regenerative potential and angiogenesis during several pathologies. Here, we aimed to collect recent findings related to the application of EPCs in engineered vascular grafts and/or hydrogels for improving vascularization in the grafts. Data from the present article can help us in the application of EPCs as valid cell sources in the tissue engineering of several ischemic tissues.
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Affiliation(s)
- Somayyeh Rashidi
- Department of Medical Biotechnology, Faculty of Medicine, Zanjan University of Medical Sciences, Zanjan, Iran
| | - Ghasem Bagherpour
- Department of Medical Biotechnology, Faculty of Medicine, Zanjan University of Medical Sciences, Zanjan, Iran
- Zanjan Pharmaceutical Biotechnology Research Center, Zanjan University of Medical Sciences, Zanjan, Iran
| | - Zahra Abbasi-Malati
- Student Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | | | - Sara Aghakhani Chegeni
- Department of Clinical Biochemistry and Laboratory Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Golbarg Roozbahani
- Department of Plant, Cell and Molecular Biology, Faculty of Natural Sciences, University of Tabriz, Tabriz, Iran
| | - Hamid Lotfimehr
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Emel Sokullu
- Research Center for Translational Medicine (KUTTAM), Koç University, Istanbul, Turkey
- Biophysics Department, Koç University School of Medicine, Istanbul, Turkey
| | - Reza Rahbarghazi
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Department of Applied Cell Sciences, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
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3
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Lim J, Fang HW, Bupphathong S, Sung PC, Yeh CE, Huang W, Lin CH. The Edifice of Vasculature-On-Chips: A Focused Review on the Key Elements and Assembly of Angiogenesis Models. ACS Biomater Sci Eng 2024; 10:3548-3567. [PMID: 38712543 PMCID: PMC11167599 DOI: 10.1021/acsbiomaterials.3c01978] [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: 12/29/2023] [Revised: 04/23/2024] [Accepted: 04/23/2024] [Indexed: 05/08/2024]
Abstract
The conception of vascularized organ-on-a-chip models provides researchers with the ability to supply controlled biological and physical cues that simulate the in vivo dynamic microphysiological environment of native blood vessels. The intention of this niche research area is to improve our understanding of the role of the vasculature in health or disease progression in vitro by allowing researchers to monitor angiogenic responses and cell-cell or cell-matrix interactions in real time. This review offers a comprehensive overview of the essential elements, including cells, biomaterials, microenvironmental factors, microfluidic chip design, and standard validation procedures that currently govern angiogenesis-on-a-chip assemblies. In addition, we emphasize the importance of incorporating a microvasculature component into organ-on-chip devices in critical biomedical research areas, such as tissue engineering, drug discovery, and disease modeling. Ultimately, advances in this area of research could provide innovative solutions and a personalized approach to ongoing medical challenges.
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Affiliation(s)
- Joshua Lim
- Graduate
Institute of Nanomedicine and Medical Engineering, College of Biomedical
Engineering, Taipei Medical University, Taipei 11031, Taiwan
| | - Hsu-Wei Fang
- High-value
Biomaterials Research and Commercialization Center, National Taipei University of Technology, Taipei 10608, Taiwan
- Department
of Chemical Engineering and Biotechnology, National Taipei University of Technology, Taipei 10608, Taiwan
- Institute
of Biomedical Engineering and Nanomedicine, National Health Research Institutes, Zhunan 35053, Taiwan
| | - Sasinan Bupphathong
- Graduate
Institute of Nanomedicine and Medical Engineering, College of Biomedical
Engineering, Taipei Medical University, Taipei 11031, Taiwan
- High-value
Biomaterials Research and Commercialization Center, National Taipei University of Technology, Taipei 10608, Taiwan
| | - Po-Chan Sung
- School
of Biomedical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei 11031, Taiwan
| | - Chen-En Yeh
- School
of Biomedical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei 11031, Taiwan
| | - Wei Huang
- Department
of Orthodontics, Rutgers School of Dental
Medicine, Newark, New Jersey 07103, United States
| | - Chih-Hsin Lin
- Graduate
Institute of Nanomedicine and Medical Engineering, College of Biomedical
Engineering, Taipei Medical University, Taipei 11031, Taiwan
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4
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Chen X, Ran X, Wei X, Zhu L, Chen S, Liao Z, Xu K, Xia W. Bioactive glass 1393 promotes angiogenesis and accelerates wound healing through ROS/P53/MMP9 signaling pathway. Regen Ther 2024; 26:132-144. [PMID: 38872979 PMCID: PMC11169082 DOI: 10.1016/j.reth.2024.05.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2024] [Revised: 05/20/2024] [Accepted: 05/26/2024] [Indexed: 06/15/2024] Open
Abstract
Compared to bioactive glass 45S5, bioactive glass 1393 has shown greater potential in activating tissue cells and promoting angiogenesis for bone repair. Nevertheless, the effect of bioactive glass 1393 in the context of wound healing remains extensively unexplored, and its mechanism in wound healing remains unclear. Considering that angiogenesis is a critical stage in wound healing, we hypothesize that bioactive glass 1393 may facilitate wound healing through the stimulation of angiogenesis. To validate this hypothesis and further explore the mechanisms underlying its pro-angiogenic effects, we investigated the impact of bioactive glass 1393 on wound healing angiogenesis through both in vivo and in vitro studies. The research demonstrated that bioactive glass 1393 accelerated wound healing by promoting the formation of granulation, deposition of collagen, and angiogenesis. The results of Western blot analysis and immunofluorescence staining revealed that bioactive glass 1393 up-regulated the expression of angiogenesis-related factors. Additionally, bioactive glass 1393 inhibited the expression of ROS and P53 to promote angiogenesis. Furthermore, bioactive glass 1393 stimulated angiogenesis through the P53 signaling pathway, as evidenced by P53 activation assays. Collectively, these findings indicate that bioactive glass 1393 accelerates wound healing by promoting angiogenesis via the ROS/P53/MMP9 signaling pathway.
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Affiliation(s)
- Xuenan Chen
- National Key Clinical Specialty(Wound Healing), Burn and Wound Healing Center, The First Affliated Hospital of Wenzhou Medical University, Wenzhou, China
- College of Life and Environmental Sciences, Wenzhou University, Zhejiang, China
| | - Xinyu Ran
- National Key Clinical Specialty(Wound Healing), Burn and Wound Healing Center, The First Affliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Xuebo Wei
- National Key Clinical Specialty(Wound Healing), Burn and Wound Healing Center, The First Affliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Lifei Zhu
- School of Pharmaceutical Sciences, Cixi Biomedical Research Institute, Wenzhou Medical University, Zhejiang, China
| | - Shaodong Chen
- Department of Orthopaedics, Lishui People's Hospital, Zhejiang, China
| | - Zhiyong Liao
- College of Life and Environmental Sciences, Wenzhou University, Zhejiang, China
| | - Ke Xu
- National Key Clinical Specialty(Wound Healing), Burn and Wound Healing Center, The First Affliated Hospital of Wenzhou Medical University, Wenzhou, China
- College of Life and Environmental Sciences, Wenzhou University, Zhejiang, China
| | - Weidong Xia
- National Key Clinical Specialty(Wound Healing), Burn and Wound Healing Center, The First Affliated Hospital of Wenzhou Medical University, Wenzhou, China
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5
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Wu Y, Cao Y, Chen L, Lai X, Zhang S, Wang S. Role of Exosomes in Cancer and Aptamer-Modified Exosomes as a Promising Platform for Cancer Targeted Therapy. Biol Proced Online 2024; 26:15. [PMID: 38802766 PMCID: PMC11129508 DOI: 10.1186/s12575-024-00245-2] [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: 04/14/2024] [Accepted: 05/16/2024] [Indexed: 05/29/2024] Open
Abstract
Exosomes are increasingly recognized as important mediators of intercellular communication in cancer biology. Exosomes can be derived from cancer cells as well as cellular components in tumor microenvironment. After secretion, the exosomes carrying a wide range of bioactive cargos can be ingested by local or distant recipient cells. The released cargos act through a variety of mechanisms to elicit multiple biological effects and impact most if not all hallmarks of cancer. Moreover, owing to their excellent biocompatibility and capability of being easily engineered or modified, exosomes are currently exploited as a promising platform for cancer targeted therapy. In this review, we first summarize the current knowledge of roles of exosomes in risk and etiology, initiation and progression of cancer, as well as their underlying molecular mechanisms. The aptamer-modified exosome as a promising platform for cancer targeted therapy is then briefly introduced. We also discuss the future directions for emerging roles of exosome in tumor biology and perspective of aptamer-modified exosomes in cancer therapy.
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Affiliation(s)
- Yating Wu
- Fujian Key Laboratory of Aptamers Technology, Affiliated Dongfang Hospital of School of Medicine, Xiamen University, Fuzhou, Fujian Province, P. R. China
- Department of Medical Oncology, Fuzhou General Clinical Medical School (the 900th Hospital), Fujian Medical University, Fujian Province, Fuzhou, P. R. China
| | - Yue Cao
- Department of Clinical Laboratory Medicine, Fuzhou General Clinical Medical School (the 900 th Hospital), Fujian Medical University, Fujian Province, Fuzhou, P. R. China
| | - Li Chen
- Fujian Key Laboratory of Aptamers Technology, Affiliated Dongfang Hospital of School of Medicine, Xiamen University, Fuzhou, Fujian Province, P. R. China
- Department of Clinical Laboratory Medicine, Fuzhou General Clinical Medical School (the 900 th Hospital), Fujian Medical University, Fujian Province, Fuzhou, P. R. China
| | - Xiaofeng Lai
- Fujian Key Laboratory of Aptamers Technology, Affiliated Dongfang Hospital of School of Medicine, Xiamen University, Fuzhou, Fujian Province, P. R. China
- Department of Clinical Laboratory Medicine, Fuzhou General Clinical Medical School (the 900 th Hospital), Fujian Medical University, Fujian Province, Fuzhou, P. R. China
| | - Shenghang Zhang
- Fujian Key Laboratory of Aptamers Technology, Affiliated Dongfang Hospital of School of Medicine, Xiamen University, Fuzhou, Fujian Province, P. R. China.
- Department of Clinical Laboratory Medicine, Fuzhou General Clinical Medical School (the 900 th Hospital), Fujian Medical University, Fujian Province, Fuzhou, P. R. China.
| | - Shuiliang Wang
- Fujian Key Laboratory of Aptamers Technology, Affiliated Dongfang Hospital of School of Medicine, Xiamen University, Fuzhou, Fujian Province, P. R. China.
- Department of Clinical Laboratory Medicine, Fuzhou General Clinical Medical School (the 900 th Hospital), Fujian Medical University, Fujian Province, Fuzhou, P. R. China.
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6
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Pal D, Das P, Mukherjee P, Roy S, Chaudhuri S, Kesh SS, Ghosh D, Nandi SK. Biomaterials-Based Strategies to Enhance Angiogenesis in Diabetic Wound Healing. ACS Biomater Sci Eng 2024; 10:2725-2741. [PMID: 38630965 DOI: 10.1021/acsbiomaterials.4c00216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/19/2024]
Abstract
Amidst the present healthcare issues, diabetes is unique as an emerging class of affliction with chronicity in a majority of the population. To check and control its effects, there have been huge turnover and constant development of management strategies, and though a bigger part of the health care area is involved in achieving its control and the related issues such as the effect of diabetes on wound healing and care and many of the works have reached certain successful outcomes, still there is a huge lack in managing it, with maximum effect yet to be attained. Studying pathophysiology and involvement of various treatment options, such as tissue engineering, application of hydrogels, drug delivery methods, and enhancing angiogenesis, are at constantly developing stages either direct or indirect. In this review, we have gathered a wide field of information and different new therapeutic methods and targets for the scientific community, paving the way toward more settled ideas and research advances to cure diabetic wounds and manage their outcomes.
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Affiliation(s)
- Debajyoti Pal
- Department of Veterinary Surgery and Radiology, West Bengal University of Animal & Fishery Sciences, Kolkata 700037, India
| | - Pratik Das
- Department of Veterinary Surgery and Radiology, West Bengal University of Animal & Fishery Sciences, Kolkata 700037, India
| | - Prasenjit Mukherjee
- Department of Veterinary Clinical Complex, West Bengal University of Animal & Fishery Sciences, Kolkata 700037, India
| | - Subhasis Roy
- Department of Veterinary Clinical Complex, West Bengal University of Animal & Fishery Sciences, Kolkata 700037, India
| | - Shubhamitra Chaudhuri
- Department of Veterinary Clinical Complex, West Bengal University of Animal & Fishery Sciences, Kolkata 700037, India
| | - Shyam Sundar Kesh
- Department of Veterinary Clinical Complex, West Bengal University of Animal & Fishery Sciences, Kolkata 700037, India
| | - Debaki Ghosh
- Department of Veterinary Surgery and Radiology, West Bengal University of Animal & Fishery Sciences, Kolkata 700037, India
| | - Samit Kumar Nandi
- Department of Veterinary Surgery and Radiology, West Bengal University of Animal & Fishery Sciences, Kolkata 700037, India
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McCarty KJ, DeCarlo AN, Ricks RE, Pratt SL, Long NM. Effects of maternal nutrient restriction during gestation on bovine serum microRNA abundance. Anim Reprod Sci 2024; 263:107435. [PMID: 38401394 DOI: 10.1016/j.anireprosci.2024.107435] [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: 05/11/2023] [Revised: 02/05/2024] [Accepted: 02/11/2024] [Indexed: 02/26/2024]
Abstract
The objective was to determine the effects of maternal nutrient restriction during gestation on serum microRNA (miRNA) abundance in cattle. Primiparous Angus-cross cows (n=22) were fed either control (CON; to gain 1 Kg/week) or nutrient restricted (NR; 0.55% NEm) diets based on National Research Council requirements. On day 30 of gestation, cows were blocked by body condition and randomly assigned to one of three diets: CON (n=8) days 30-190; NR (n=7) days 30-110 followed by CON days 110-190 (NR/C); or CON (n=7) days 30-110 followed by NR days 110-190 (C/NR). At 190 days of gestation, maternal serum was collected for RNA isolation and analyzed using a miRNA microarray of known Bos taurus sequences. Data were normalized using LOWESS and analyzed via ANOVA. At 190 days of gestation, 16 miRNAs exhibited differential abundance (P<0.05) between treatments. Cows that underwent NR, irrespective of when the insult occurred, had downregulated bta-miR-126-3p compared to CON cows. Bta-miR-16b was downregulated and three miRNAs upregulated in NR/C compared to C/NR and CON cows. Additionally, seven miRNAs were downregulated and four miRNAs upregulated in C/NR compared to NR/C and CON cows. Comparison of NR/C and C/NR cows revealed three differentially abundant (P<0.04) miRNAs (bta-miR-2487_L-2R-3_1ss15CT, bta-miR-215, and bta-miR-760-5p). Top KEGG pathway enrichment of target genes included: pathways in cancer, PI3K-Akt signaling, focal adhesion, Ras signaling, proteoglycans in cancer, and MAPK signaling. In summary, maternal nutrient restriction altered serum miRNA abundance profiles irrespective of the time at which the nutritional insult was induced.
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Affiliation(s)
- K J McCarty
- Department of Animal and Veterinary Sciences, Clemson University, Clemson, SC 29634, USA
| | - A N DeCarlo
- Department of Animal and Veterinary Sciences, Clemson University, Clemson, SC 29634, USA
| | - R E Ricks
- Department of Animal and Veterinary Sciences, Clemson University, Clemson, SC 29634, USA
| | - S L Pratt
- Department of Animal and Veterinary Sciences, Clemson University, Clemson, SC 29634, USA
| | - N M Long
- Department of Animal and Veterinary Sciences, Clemson University, Clemson, SC 29634, USA.
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Nawaz S, Kulyar MFEA, Mo Q, Yao W, Iqbal M, Li J. Homeostatic Regulation of Pro-Angiogenic and Anti-Angiogenic Proteins via Hedgehog, Notch Grid, and Ephrin Signaling in Tibial Dyschondroplasia. Animals (Basel) 2023; 13:3750. [PMID: 38136788 PMCID: PMC10740744 DOI: 10.3390/ani13243750] [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: 10/23/2023] [Revised: 11/21/2023] [Accepted: 11/28/2023] [Indexed: 12/24/2023] Open
Abstract
Precise coupling of two fundamental mechanisms, chondrogenesis and osteogenesis via angiogenesis, plays a crucial role during rapid proliferation of growth plates, and alteration in their balance might lead to pathogenic conditions. Tibial dyschondroplasia (TD) is characterized by an avascular, non-mineralized, jade-white "cartilaginous wedge" with impaired endochondral ossification and chondrocyte proliferation at the proximal end of a tibial bone in rapidly growing poultry birds. Developing vascular structures are dynamic with cartilage growth and are regulated through homeostatic balance among pro and anti-angiogenic proteins and cytokines. Pro-angiogenic factors involves a wide spectrum of multifactorial mitogens, such as vascular endothelial growth factors (VEGF), platelet-derived growth factors (PDGF), basic fibroblast growth factor (bFGF), placental growth factors, transforming growth factor-β (TGF-β), and TNF-α. Considering their regulatory role via the sonic hedgehog, notch-gridlock, and ephrin-B2/EphB4 pathways and inhibition through anti-angiogenic proteins like angiostatin, endostatin, decoy receptors, vasoinhibin, thrombospondin, PEX, and troponin, their possible role in persisting inflammatory conditions like TD was studied in the current literature review. Balanced apoptosis and angiogenesis are vital for physiological bone growth. Any homeostatic imbalance among apoptotic, angiogenetic, pro-angiogenic, or anti-angiogenic proteins ultimately leads to pathological bone conditions like TD and osteoarthritis. The current review might substantiate solid grounds for developing innovative therapeutics for diseases governed by the disproportion of angiogenesis and anti-angiogenesis proteins.
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Affiliation(s)
- Shah Nawaz
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China; (S.N.); (M.F.-e.-A.K.); (W.Y.); (M.I.)
| | - Muhammad Fakhar-e-Alam Kulyar
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China; (S.N.); (M.F.-e.-A.K.); (W.Y.); (M.I.)
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Quan Mo
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China; (S.N.); (M.F.-e.-A.K.); (W.Y.); (M.I.)
| | - Wangyuan Yao
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China; (S.N.); (M.F.-e.-A.K.); (W.Y.); (M.I.)
| | - Mudassar Iqbal
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China; (S.N.); (M.F.-e.-A.K.); (W.Y.); (M.I.)
- Faculty of Veterinary and Animal Sciences, The Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan
| | - Jiakui Li
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China; (S.N.); (M.F.-e.-A.K.); (W.Y.); (M.I.)
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Arduini A, Fleming SJ, Xiao L, Hall AW, Akkad AD, Chaffin M, Bendinelli KJ, Tucker NR, Papangeli I, Mantineo H, Babadi M, Stegmann CM, García-Cardeña G, Lindsay ME, Klattenhoff C, Ellinor PT. Transcriptional profile of the rat cardiovascular system at single cell resolution. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.11.14.567085. [PMID: 38014050 PMCID: PMC10680727 DOI: 10.1101/2023.11.14.567085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2023]
Abstract
Background Despite the critical role of the cardiovascular system, our understanding of its cellular and transcriptional diversity remains limited. We therefore sought to characterize the cellular composition, phenotypes, molecular pathways, and communication networks between cell types at the tissue and sub-tissue level across the cardiovascular system of the healthy Wistar rat, an important model in preclinical cardiovascular research. We obtained high quality tissue samples under controlled conditions that reveal a level of cellular detail so far inaccessible in human studies. Methods and Results We performed single nucleus RNA-sequencing in 78 samples in 10 distinct regions including the four chambers of the heart, ventricular septum, sinoatrial node, atrioventricular node, aorta, pulmonary artery, and pulmonary veins (PV), which produced an aggregate map of 505,835 nuclei. We identified 26 distinct cell types and additional subtypes, including a number of rare cell types such as PV cardiomyocytes and non-myelinating Schwann cells (NMSCs), and unique groups of vascular smooth muscle cells (VSMCs), endothelial cells (ECs) and fibroblasts (FBs), which gave rise to a detailed cell type distribution across tissues. We demonstrated differences in the cellular composition across different cardiac regions and tissue-specific differences in transcription for each cell type, highlighting the molecular diversity and complex tissue architecture of the cardiovascular system. Specifically, we observed great transcriptional heterogeneities among ECs and FBs. Importantly, several cell subtypes had a unique regional localization such as a subtype of VSMCs enriched in the large vasculature. We found the cellular makeup of PV tissue is closer to heart tissue than to the large arteries. We further explored the ligand-receptor repertoire across cell clusters and tissues, and observed tissue-enriched cellular communication networks, including heightened Nppa - Npr1 / 2 / 3 signaling in the sinoatrial node. Conclusions Through a large single nucleus sequencing effort encompassing over 500,000 nuclei, we broadened our understanding of cellular transcription in the healthy cardiovascular system. The existence of tissue-restricted cellular phenotypes suggests regional regulation of cardiovascular physiology. The overall conservation in gene expression and molecular pathways across rat and human cell types, together with our detailed transcriptional characterization of each cell type, offers the potential to identify novel therapeutic targets and improve preclinical models of cardiovascular disease.
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10
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Oza PP, Kashfi K. The Triple Crown: NO, CO, and H 2S in cancer cell biology. Pharmacol Ther 2023; 249:108502. [PMID: 37517510 PMCID: PMC10529678 DOI: 10.1016/j.pharmthera.2023.108502] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 07/16/2023] [Accepted: 07/19/2023] [Indexed: 08/01/2023]
Abstract
Nitric oxide (NO), carbon monoxide (CO), and hydrogen sulfide (H2S) are three endogenously produced gases with important functions in the vasculature, immune defense, and inflammation. It is increasingly apparent that, far from working in isolation, these three exert many effects by modulating each other's activity. Each gas is produced by three enzymes, which have some tissue specificities and can also be non-enzymatically produced by redox reactions of various substrates. Both NO and CO share similar properties, such as activating soluble guanylate cyclase (sGC) to increase cyclic guanosine monophosphate (cGMP) levels. At the same time, H2S both inhibits phosphodiesterase 5A (PDE5A), an enzyme that metabolizes sGC and exerts redox regulation on sGC. The role of NO, CO, and H2S in the setting of cancer has been quite perplexing, as there is evidence for both tumor-promoting and pro-inflammatory effects and anti-tumor and anti-inflammatory activities. Each gasotransmitter has been found to have dual effects on different aspects of cancer biology, including cancer cell proliferation and apoptosis, invasion and metastasis, angiogenesis, and immunomodulation. These seemingly contradictory actions may relate to each gas having a dual effect dependent on its local flux. In this review, we discuss the major roles of NO, CO, and H2S in the context of cancer, with an effort to highlight the dual nature of each gas in different events occurring during cancer progression.
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Affiliation(s)
- Palak P Oza
- Department of Molecular, Cellular and Biomedical Sciences, Sophie Davis School of Biomedical Education, City University of New York School of Medicine, New York, NY 10031, USA
| | - Khosrow Kashfi
- Department of Molecular, Cellular and Biomedical Sciences, Sophie Davis School of Biomedical Education, City University of New York School of Medicine, New York, NY 10031, USA; Graduate Program in Biology, City University of New York Graduate Center, New York 10091, USA.
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11
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Hsu HH, Ko PL, Peng CC, Cheng YJ, Wu HM, Tung YC. Studying sprouting angiogenesis under combination of oxygen gradients and co-culture of fibroblasts using microfluidic cell culture model. Mater Today Bio 2023; 21:100703. [PMID: 37483382 PMCID: PMC10359940 DOI: 10.1016/j.mtbio.2023.100703] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Revised: 05/24/2023] [Accepted: 06/12/2023] [Indexed: 07/25/2023] Open
Abstract
Sprouting angiogenesis is an essential process for expanding vascular systems under various physiological and pathological conditions. In this paper, a microfluidic device capable of integrating a hydrogel matrix for cell culture and generating stable oxygen gradients is developed to study the sprouting angiogenesis of endothelial cells under combinations of oxygen gradients and co-culture of fibroblast cells. The endothelial cells can be cultured as a monolayer endothelium inside the device to mimic an existing blood vessel, and the hydrogel without or with fibroblast cells cultured in it provides a matrix next to the formed endothelium for three-dimensional sprouting of the endothelial cells. Oxygen gradients can be stably established inside the device for cell culture using the spatially-confined chemical reaction method. Using the device, the sprouting angiogenesis under combinations of oxygen gradients and co-culture of fibroblast cells is systematically studied. The results show that the oxygen gradient and the co-culture of fibroblast cells in the hydrogel can promote sprouting of the endothelial cells into the hydrogel matrix by altering cytokines in the culture medium and the physical properties of the hydrogel. The developed device provides a powerful in vitro model to investigate sprouting angiogenesis under various in vivo-like microenvironments.
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Affiliation(s)
- Heng-Hua Hsu
- Research Center of Applied Sciences, Academia Sinica, Taipei, Taiwan
- Department of Engineering and System Science, National Tsing Hua University, Hsinchu, Taiwan
| | - Ping-Liang Ko
- Research Center of Applied Sciences, Academia Sinica, Taipei, Taiwan
- Department of Mechanical Engineering, National Taiwan University, Taipei, Taiwan
| | - Chien-Chung Peng
- Research Center of Applied Sciences, Academia Sinica, Taipei, Taiwan
| | - Ya-Jen Cheng
- Institute of Molecular Biology, Academia Sinica, Taipei, Taiwan
- Neuroscience Program of Academia Sinica, Academia Sinica, Taipei, Taiwan
| | - Hsiao-Mei Wu
- Department of Biomechatronics Engineering, National Taiwan University, Taipei, Taiwan
| | - Yi-Chung Tung
- Research Center of Applied Sciences, Academia Sinica, Taipei, Taiwan
- College of Engineering, Chang Gung University, Taoyuan, Taiwan
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12
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Jiang Y, Zhang J, Shi C, Li X, Jiang Y, Mao R. NF- κB: a mediator that promotes or inhibits angiogenesis in human diseases? Expert Rev Mol Med 2023; 25:e25. [PMID: 37503730 DOI: 10.1017/erm.2023.20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/29/2023]
Abstract
The nuclear factor of κ-light chain of enhancer-activated B cells (NF-κB) signaling pathway, which is conserved in invertebrates, plays a significant role in human diseases such as inflammation-related diseases and carcinogenesis. Angiogenesis refers to the growth of new capillary vessels derived from already existing capillaries and postcapillary venules. Maintaining normal angiogenesis and effective vascular function is a prerequisite for the stability of organ tissue function, and abnormal angiogenesis often leads to a variety of diseases. It has been suggested that NK-κB signalling molecules under pathological conditions play an important role in vascular differentiation, proliferation, apoptosis and tumourigenesis by regulating the transcription of multiple target genes. Many NF-κB inhibitors are being tested in clinical trials for cancer treatment and their effect on angiogenesis is summarised. In this review, we will summarise the role of NF-κB signalling in various neovascular diseases, especially in tumours, and explore whether NF-κB can be used as an attack target or activation medium to inhibit tumour angiogenesis.
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Affiliation(s)
- Yijing Jiang
- Department of Pathophysiology, School of Medicine, Nantong University, 19 Qixiu Road, Nantong 226001, Jiangsu, People's Republic of China
| | - Jie Zhang
- Department of Oncology, Affiliated Tumor Hospital of Nantong University, 30Tongyang North Road, Pingchao Town, Nantong 226361, Jiangsu, People's Republic of China
| | - Conglin Shi
- Department of Pathogenic Biology, School of Medicine, Nantong University, 19 Qixiu Road, Nantong 226001, Jiangsu, People's Republic of China
| | - Xingjuan Li
- Department of Pathophysiology, School of Medicine, Nantong University, 19 Qixiu Road, Nantong 226001, Jiangsu, People's Republic of China
| | - Yongying Jiang
- Department of Pathophysiology, School of Medicine, Nantong University, 19 Qixiu Road, Nantong 226001, Jiangsu, People's Republic of China
| | - Renfang Mao
- Department of Pathophysiology, School of Medicine, Nantong University, 19 Qixiu Road, Nantong 226001, Jiangsu, People's Republic of China
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13
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Dinarello A, Betto RM, Diamante L, Tesoriere A, Ghirardo R, Cioccarelli C, Meneghetti G, Peron M, Laquatra C, Tiso N, Martello G, Argenton F. STAT3 and HIF1α cooperatively mediate the transcriptional and physiological responses to hypoxia. Cell Death Discov 2023; 9:226. [PMID: 37407568 DOI: 10.1038/s41420-023-01507-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Revised: 06/04/2023] [Accepted: 06/20/2023] [Indexed: 07/07/2023] Open
Abstract
STAT3 and HIF1α are two fundamental transcription factors involved in many merging processes, like angiogenesis, metabolism, and cell differentiation. Notably, under pathological conditions, the two factors have been shown to interact genetically, but both the molecular mechanisms underlying such interactions and their relevance under physiological conditions remain unclear. In mouse embryonic stem cells (ESCs) we manage to determine the specific subset of hypoxia-induced genes that need STAT3 to be properly transcribed and, among them, fundamental genes like Vegfa, Hk1, Hk2, Pfkp and Hilpda are worth mentioning. Unexpectedly, we also demonstrated that the absence of STAT3 does not affect the expression of Hif1α mRNA nor the stabilization of HIF1α protein, but the STAT3-driven regulation of the hypoxia-dependent subset of gene could rely on the physical interaction between STAT3 and HIF1α. To further elucidate the physiological roles of this STAT3 non-canonical nuclear activity, we used a CRISPR/Cas9 zebrafish stat3 knock-out line. Notably, hypoxia-related fluorescence of the hypoxia zebrafish reporter line (HRE:mCherry) cannot be induced when Stat3 is not active and, while Stat3 Y705 phosphorylation seems to have a pivotal role in this process, S727 does not affect the Stat3-dependent hypoxia response. Hypoxia is fundamental for vascularization, angiogenesis and immune cells mobilization; all processes that, surprisingly, cannot be induced by low oxygen levels when Stat3 is genetically ablated. All in all, here we report the specific STAT3/HIF1α-dependent subset of genes in vitro and, for the first time with an in vivo model, we determined some of the physiological roles of STAT3-hypoxia crosstalk.
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Affiliation(s)
| | | | - Linda Diamante
- Department of Molecular Medicine, University of Padova, Padova, Italy
| | | | | | | | | | | | - Claudio Laquatra
- Department of Biomedical Sciences, University of Padova, Padova, Italy
| | - Natascia Tiso
- Department of Biology, University of Padova, Padova, Italy
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14
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Fang W, Yang M, Liu M, Jin Y, Wang Y, Yang R, Wang Y, Zhang K, Fu Q. Review on Additives in Hydrogels for 3D Bioprinting of Regenerative Medicine: From Mechanism to Methodology. Pharmaceutics 2023; 15:1700. [PMID: 37376148 PMCID: PMC10302687 DOI: 10.3390/pharmaceutics15061700] [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: 04/18/2023] [Revised: 05/29/2023] [Accepted: 06/02/2023] [Indexed: 06/29/2023] Open
Abstract
The regeneration of biological tissues in medicine is challenging, and 3D bioprinting offers an innovative way to create functional multicellular tissues. One common way in bioprinting is bioink, which is one type of the cell-loaded hydrogel. For clinical application, however, the bioprinting still suffers from satisfactory performance, e.g., in vascularization, effective antibacterial, immunomodulation, and regulation of collagen deposition. Many studies incorporated different bioactive materials into the 3D-printed scaffolds to optimize the bioprinting. Here, we reviewed a variety of additives added to the 3D bioprinting hydrogel. The underlying mechanisms and methodology for biological regeneration are important and will provide a useful basis for future research.
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Affiliation(s)
| | | | | | | | | | | | | | - Kaile Zhang
- Department of Urology, Affiliated Sixth People’s Hospital, Shanghai Jiaotong University, No. 600 Yi-Shan Road, Shanghai 200233, China; (W.F.); (M.Y.)
| | - Qiang Fu
- Department of Urology, Affiliated Sixth People’s Hospital, Shanghai Jiaotong University, No. 600 Yi-Shan Road, Shanghai 200233, China; (W.F.); (M.Y.)
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15
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Nazarzadeh M, Bidel Z, Mohseni H, Canoy D, Pinho-Gomes AC, Hassaine A, Dehghan A, Tregouet DA, Smith NL, Rahimi K. Blood pressure and risk of venous thromboembolism: a cohort analysis of 5.5 million UK adults and Mendelian randomization studies. Cardiovasc Res 2023; 119:835-842. [PMID: 36031541 PMCID: PMC10153414 DOI: 10.1093/cvr/cvac135] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Revised: 04/29/2022] [Accepted: 07/26/2022] [Indexed: 11/12/2022] Open
Abstract
AIMS Evidence for the effect of elevated blood pressure (BP) on the risk of venous thromboembolism (VTE) has been conflicting. We sought to assess the association between systolic BP and the risk of VTE. METHODS AND RESULTS Three complementary studies comprising an observational cohort analysis, a one-sample and two-sample Mendelian randomization were conducted using data from 5 588 280 patients registered in the Clinical Practice Research Datalink (CPRD) dataset and 432 173 UK Biobank participants with valid genetic data. Summary statistics of International Network on Venous Thrombosis genome-wide association meta-analysis was used for two-sample Mendelian randomization. The primary outcome was the first occurrence of VTE event, identified from hospital discharge reports, death registers, and/or primary care records. In the CPRD cohort, 104 017(1.9%) patients had a first diagnosis of VTE during the 9.6-year follow-up. Each 20 mmHg increase in systolic BP was associated with a 7% lower risk of VTE [hazard ratio: 0.93, 95% confidence interval (CI): (0.92-0.94)]. Statistically significant interactions were found for sex and body mass index, but not for age and subtype of VTE (pulmonary embolism and deep venous thrombosis). Mendelian randomization studies provided strong evidence for the association between systolic BP and VTE, both in the one-sample [odds ratio (OR): 0.69, (95% CI: 0.57-0.83)] and two-sample analyses [OR: 0.80, 95% CI: (0.70-0.92)]. CONCLUSION We found an increased risk of VTE with lower BP, and this association was independently confirmed in two Mendelian randomization analyses. The benefits of BP reduction are likely to outweigh the harms in most patient groups, but in people with predisposing factors for VTE, further BP reduction should be made cautiously.
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Affiliation(s)
- Milad Nazarzadeh
- Deep Medicine, Oxford Martin School, University of Oxford, 1st Floor, Hayes House, 75 George Street, Oxford OX1 2BQ, UK
- Medical Science Division, Nuffield Department of Women’s and Reproductive Health, University of Oxford, UK
| | - Zeinab Bidel
- Deep Medicine, Oxford Martin School, University of Oxford, 1st Floor, Hayes House, 75 George Street, Oxford OX1 2BQ, UK
- Medical Science Division, Nuffield Department of Women’s and Reproductive Health, University of Oxford, UK
| | - Hamid Mohseni
- Deep Medicine, Oxford Martin School, University of Oxford, 1st Floor, Hayes House, 75 George Street, Oxford OX1 2BQ, UK
| | - Dexter Canoy
- Deep Medicine, Oxford Martin School, University of Oxford, 1st Floor, Hayes House, 75 George Street, Oxford OX1 2BQ, UK
- Medical Science Division, Nuffield Department of Women’s and Reproductive Health, University of Oxford, UK
- Faculty of Medicine, University of New South Wales, Sydney, Australia
- NIHR Oxford Biomedical Research Centre, Oxford, UK
| | - Ana-Catarina Pinho-Gomes
- Medical Science Division, Nuffield Department of Women’s and Reproductive Health, University of Oxford, UK
| | - Abdelaali Hassaine
- Deep Medicine, Oxford Martin School, University of Oxford, 1st Floor, Hayes House, 75 George Street, Oxford OX1 2BQ, UK
- Medical Science Division, Nuffield Department of Women’s and Reproductive Health, University of Oxford, UK
| | - Abbas Dehghan
- Department of Biostatistics and Epidemiology, School of Public Health, Imperial College London, UK
| | - David-Alexandre Tregouet
- INSERM UMR_S 1219, Bordeaux Population Health Research Center, University of Bordeaux, Bordeaux, France
| | - Nicholas L Smith
- Department of Epidemiology, University of Washington, Seattle, WA
- Kaiser Permanente Washington Health Research Institute, Kaiser Permanente Washington, Seattle, WA
- Department of Veterans Affairs Office of Research and Development, Seattle Epidemiologic Research and Information Center, Seattle, WA
| | - Kazem Rahimi
- Deep Medicine, Oxford Martin School, University of Oxford, 1st Floor, Hayes House, 75 George Street, Oxford OX1 2BQ, UK
- Medical Science Division, Nuffield Department of Women’s and Reproductive Health, University of Oxford, UK
- NIHR Oxford Biomedical Research Centre, Oxford, UK
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16
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Luo H, Sun Y, Wang L, Zhao R, James B. Cellular proteomic profiling of esophageal epithelial cells cultured under physioxia or normoxia reveals high correlation of radiation response. RADIATION MEDICINE AND PROTECTION 2023. [DOI: 10.1016/j.radmp.2023.03.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023] Open
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17
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Maadurshni GB, Nagarajan M, Priyadharshini S, Singaravelu U, Manivannan J. System-wide health risk prediction for 4-methyl-2,4-bis(4-hydroxyphenyl)pent-1-ene(MBP), a major active metabolite of environmental pollutant and food contaminant - Bisphenol A. Toxicology 2023; 485:153414. [PMID: 36587891 DOI: 10.1016/j.tox.2022.153414] [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: 11/27/2022] [Revised: 12/19/2022] [Accepted: 12/28/2022] [Indexed: 12/30/2022]
Abstract
Human exposure to plastic contaminated foods and environmental micro/nano plastic derived chemicals necessitates system-wide health risk assessment. Hence, current study intend to explore the mode of action (MoA) based adverse outcome pathways of 4-methyl-2,4-bis(4-hydroxyphenyl)pent-1-ene (MBP), the major active metabolite of bisphenol A (BPA). The computational study employed broad range of target prediction, systems biology tools and molecular docking protocols. Further, validation of MBP targets was done using protein-ligand fluorescence quenching assay, endothelial cell culture and chicken embryo vascular angiogenesis models. Interestingly, the current results illustrate that various physiological signaling pathways (MAPK and VEGF related angiogenesis signaling) and disease progression pathways (hypertension, cancer and endocrine disorders) were enriched as potential targets of MBP. Further, docking studies highlights the possible binding mechanism of MBP with important targets including endothelial nitric oxide synthase (eNOS) and serum albumin (BSA). In addition, the validation studies on MBP-BSA interaction (fluorescence quenching), eNOS derived nitric oxide (NOx) generation in endothelial cells and chicken embryo angiogenesis support the system-wide impacts of MBP with highlights on cardiovascular pathogenesis. Thus, the current observation provides novel insights into the system wide impacts of MBP for the futuristic health risk assessment of plastic derived chemicals.
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Affiliation(s)
| | - Manigandan Nagarajan
- Environmental Health and Toxicology Laboratory, Department of Environmental Sciences, School of Life Sciences, Bharathiar University, Coimbatore, Tamil Nadu, India
| | - Saravanan Priyadharshini
- Integrated Biocomputing Lab, Department of Bioinformatics, School of Life Sciences, Bharathiar University, Coimbatore, Tamil Nadu, India
| | - Usha Singaravelu
- Integrated Biocomputing Lab, Department of Bioinformatics, School of Life Sciences, Bharathiar University, Coimbatore, Tamil Nadu, India
| | - Jeganathan Manivannan
- Environmental Health and Toxicology Laboratory, Department of Environmental Sciences, School of Life Sciences, Bharathiar University, Coimbatore, Tamil Nadu, India.
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18
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Sun K, Li X, Scherer PE. Extracellular Matrix (ECM) and Fibrosis in Adipose Tissue: Overview and Perspectives. Compr Physiol 2023; 13:4387-4407. [PMID: 36715281 PMCID: PMC9957663 DOI: 10.1002/cphy.c220020] [Citation(s) in RCA: 20] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Fibrosis in adipose tissue is a major driver of obesity-related metabolic dysregulation. It is characterized by an overaccumulation of extracellular matrix (ECM) during unhealthy expansion of adipose tissue in response to over nutrition. In obese adipose-depots, hypoxia stimulates multiple pro-fibrotic signaling pathways in different cell populations, thereby inducing the overproduction of the ECM components, including collagens, noncollagenous proteins, and additional enzymatic components of ECM synthesis. As a consequence, local fibrosis develops. The result of fibrosis-induced mechanical stress not only triggers cell necrosis and inflammation locally in adipose tissue but also leads to system-wide lipotoxicity and insulin resistance. A better understanding of the mechanisms underlying the obesity-induced fibrosis will help design therapeutic approaches to reduce or reverse the pathological changes associated with obese adipose tissue. Here, we aim to summarize the major advances in the field, which include newly identified fibrotic factors, cell populations that contribute to the fibrosis in adipose tissue, as well as novel mechanisms underlying the development of fibrosis. We further discuss the potential therapeutic strategies to target fibrosis in adipose tissue for the treatment of obesity-linked metabolic diseases and cancer. © 2023 American Physiological Society. Compr Physiol 13:4387-4407, 2023.
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Affiliation(s)
- Kai Sun
- Center for Metabolic and Degenerative Diseases, Institute of Molecular Medicine, University of Texas Health Science Center at Houston, Houston, Texas, USA
| | - Xin Li
- Center for Metabolic and Degenerative Diseases, Institute of Molecular Medicine, University of Texas Health Science Center at Houston, Houston, Texas, USA
| | - Philipp E. Scherer
- Department of Internal Medicine, Touchstone Diabetes Center, University of Texas Southwestern Medical Center at Dallas, Dallas, Texas, USA
- Department of Cell Biology, University of Texas Southwestern Medical Center at Dallas, Dallas, Texas, USA
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19
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Abadi B, Goshtasbi N, Bolourian S, Tahsili J, Adeli-Sardou M, Forootanfar H. Electrospun hybrid nanofibers: Fabrication, characterization, and biomedical applications. Front Bioeng Biotechnol 2022; 10:986975. [PMID: 36561047 PMCID: PMC9764016 DOI: 10.3389/fbioe.2022.986975] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Accepted: 11/16/2022] [Indexed: 12/05/2022] Open
Abstract
Nanotechnology is one of the most promising technologies available today, holding tremendous potential for biomedical and healthcare applications. In this field, there is an increasing interest in the use of polymeric micro/nanofibers for the construction of biomedical structures. Due to its potential applications in various fields like pharmaceutics and biomedicine, the electrospinning process has gained considerable attention for producing nano-sized fibers. Electrospun nanofiber membranes have been used in drug delivery, controlled drug release, regenerative medicine, tissue engineering, biosensing, stent coating, implants, cosmetics, facial masks, and theranostics. Various natural and synthetic polymers have been successfully electrospun into ultrafine fibers. Although biopolymers demonstrate exciting properties such as good biocompatibility, non-toxicity, and biodegradability, they possess poor mechanical properties. Hybrid nanofibers from bio and synthetic nanofibers combine the characteristics of biopolymers with those of synthetic polymers, such as high mechanical strength and stability. In addition, a variety of functional agents, such as nanoparticles and biomolecules, can be incorporated into nanofibers to create multifunctional hybrid nanofibers. Due to the remarkable properties of hybrid nanofibers, the latest research on the unique properties of hybrid nanofibers is highlighted in this study. Moreover, various established hybrid nanofiber fabrication techniques, especially the electrospinning-based methods, as well as emerging strategies for the characterization of hybrid nanofibers, are summarized. Finally, the development and application of electrospun hybrid nanofibers in biomedical applications are discussed.
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Affiliation(s)
- Banafshe Abadi
- Herbal and Traditional Medicines Research Center, Kerman University of Medical Sciences, Kerman, Iran,Brain Cancer Research Core (BCRC), Universal Scientific Education and Research Network (USERN), Kerman, Iran
| | - Nazanin Goshtasbi
- Department of Pharmaceutics, Faculty of Pharmacy and Pharmaceutical Sciences, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Saman Bolourian
- Department of Biology, Faculty of Science, Alzahra University, Tehran, Iran
| | - Jaleh Tahsili
- Department of Plant Biology, Faculty of Biological Science, Tarbiat Modares University, Tehran, Iran
| | - Mahboubeh Adeli-Sardou
- Medical Mycology and Bacteriology Research Center, Kerman University of Medical Sciences, Kerman, Iran,Student Research Committee, Kerman University of Medical Sciences, Kerman, Iran,*Correspondence: Mahboubeh Adeli-Sardou, ; Hamid Forootanfar,
| | - Hamid Forootanfar
- Pharmaceutical Sciences and Cosmetic Products Research Center, Kerman University of Medical Sciences, Kerman, Iran,Department of Pharmaceutical Biotechnology, Faculty of Pharmacy, Kerman University of Medical Sciences, Kerman, Iran,*Correspondence: Mahboubeh Adeli-Sardou, ; Hamid Forootanfar,
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20
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Atallah R, Olschewski A, Heinemann A. Succinate at the Crossroad of Metabolism and Angiogenesis: Roles of SDH, HIF1α and SUCNR1. Biomedicines 2022; 10:3089. [PMID: 36551845 PMCID: PMC9775124 DOI: 10.3390/biomedicines10123089] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2022] [Revised: 11/28/2022] [Accepted: 11/29/2022] [Indexed: 12/03/2022] Open
Abstract
Angiogenesis is an essential process by which new blood vessels develop from existing ones. While adequate angiogenesis is a physiological process during, for example, tissue repair, insufficient and excessive angiogenesis stands on the pathological side. Fine balance between pro- and anti-angiogenic factors in the tissue environment regulates angiogenesis. Identification of these factors and how they function is a pressing topic to develop angiogenesis-targeted therapeutics. During the last decade, exciting data highlighted non-metabolic functions of intermediates of the mitochondrial Krebs cycle including succinate. Among these functions is the contribution of succinate to angiogenesis in various contexts and through different mechanisms. As the concept of targeting metabolism to treat a wide range of diseases is rising, in this review we summarize the mechanisms by which succinate regulates angiogenesis in normal and pathological settings. Gaining a comprehensive insight into how this metabolite functions as an angiogenic signal will provide a useful approach to understand diseases with aberrant or excessive angiogenic background, and may provide strategies to tackle them.
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Affiliation(s)
- Reham Atallah
- Otto-Loewi Research Center for Vascular Biology, Immunology and Inflammation, Division of Pharmacology, Medical University of Graz, 8010 Graz, Austria
- Ludwig Boltzmann Institute for Lung Vascular Research, 8010 Graz, Austria
| | - Andrea Olschewski
- Ludwig Boltzmann Institute for Lung Vascular Research, 8010 Graz, Austria
- Department of Anaesthesiology and Intensive Care Medicine, Medical University of Graz, 8036 Graz, Austria
| | - Akos Heinemann
- Otto-Loewi Research Center for Vascular Biology, Immunology and Inflammation, Division of Pharmacology, Medical University of Graz, 8010 Graz, Austria
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21
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Choi YK. An Altered Neurovascular System in Aging-Related Eye Diseases. Int J Mol Sci 2022; 23:ijms232214104. [PMID: 36430581 PMCID: PMC9694120 DOI: 10.3390/ijms232214104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Revised: 11/13/2022] [Accepted: 11/13/2022] [Indexed: 11/18/2022] Open
Abstract
The eye has a complex and metabolically active neurovascular system. Repeated light injuries induce aging and trigger age-dependent eye diseases. Damage to blood vessels is related to the disruption of the blood-retinal barrier (BRB), altered cellular communication, disrupted mitochondrial functions, and exacerbated aggregated protein accumulation. Vascular complications, such as insufficient blood supply and BRB disruption, have been suggested to play a role in glaucoma, age-related macular degeneration (AMD), and Alzheimer's disease (AD), resulting in neuronal cell death. Neuronal loss can induce vision loss. In this review, we discuss the importance of the neurovascular system in the eye, especially in aging-related diseases such as glaucoma, AMD, and AD. Beneficial molecular pathways to prevent or slow down retinal pathologic processes will also be discussed.
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Affiliation(s)
- Yoon Kyung Choi
- Department of Bioscience and Biotechnology, Konkuk University, Seoul 05029, Republic of Korea
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22
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Tiwari R, Bommi PV, Gao P, Schipma MJ, Zhou Y, Quaggin SE, Chandel NS, Kapitsinou PP. Chemical inhibition of oxygen-sensing prolyl hydroxylases impairs angiogenic competence of human vascular endothelium through metabolic reprogramming. iScience 2022; 25:105086. [PMID: 36157579 PMCID: PMC9494243 DOI: 10.1016/j.isci.2022.105086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Revised: 06/24/2022] [Accepted: 08/31/2022] [Indexed: 11/18/2022] Open
Abstract
Endothelial cell (EC) metabolism has emerged as a driver of angiogenesis. While hypoxia inactivates the oxygen sensors prolyl-4 hydroxylase domain-containing proteins 1-3 (PHD1-3) and stimulates angiogenesis, the effects of PHDs on EC functions remain poorly defined. Here, we investigated the impact of chemical PHD inhibition by dimethyloxalylglycine (DMOG) on angiogenic competence and metabolism of human vascular ECs. DMOG reduced EC proliferation, migration, and tube formation capacities, responses that were associated with an unfavorable metabolic reprogramming. While glycolytic genes were induced, multiple genes encoding sub-units of mitochondrial complex I were suppressed with concurrent decline in nicotinamide adenine dinucleotide (NAD+) levels. Importantly, the DMOG-induced defects in EC migration could be partially rescued by augmenting NAD+ levels through nicotinamide riboside or citrate supplementation. In summary, by integrating functional assays, transcriptomics, and metabolomics, we provide insights into the effects of PHD inhibition on angiogenic competence and metabolism of human vascular ECs.
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Affiliation(s)
- Ratnakar Tiwari
- Feinberg Cardiovascular Research Institute, Northwestern University Feinberg School of Medicine, 303 East Superior Street, SQBRC 8-408, Chicago, 60611 IL, USA
- Division of Nephrology & Hypertension, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Prashant V. Bommi
- Feinberg Cardiovascular Research Institute, Northwestern University Feinberg School of Medicine, 303 East Superior Street, SQBRC 8-408, Chicago, 60611 IL, USA
- Division of Nephrology & Hypertension, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Peng Gao
- Department of Medicine and Robert H. Lurie Cancer Center, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Matthew J. Schipma
- Department of Biochemistry and Molecular Genetics, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Yalu Zhou
- Feinberg Cardiovascular Research Institute, Northwestern University Feinberg School of Medicine, 303 East Superior Street, SQBRC 8-408, Chicago, 60611 IL, USA
- Division of Nephrology & Hypertension, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Susan E. Quaggin
- Feinberg Cardiovascular Research Institute, Northwestern University Feinberg School of Medicine, 303 East Superior Street, SQBRC 8-408, Chicago, 60611 IL, USA
- Division of Nephrology & Hypertension, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Navdeep S. Chandel
- Department of Medicine and Robert H. Lurie Cancer Center, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Pinelopi P. Kapitsinou
- Feinberg Cardiovascular Research Institute, Northwestern University Feinberg School of Medicine, 303 East Superior Street, SQBRC 8-408, Chicago, 60611 IL, USA
- Division of Nephrology & Hypertension, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
- Department of Medicine and Robert H. Lurie Cancer Center, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
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Ramchandran R. Endothelial cells and their role in the vasculature: Past, present and future. Front Cell Dev Biol 2022; 10:994133. [PMID: 36187473 PMCID: PMC9520988 DOI: 10.3389/fcell.2022.994133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Accepted: 08/11/2022] [Indexed: 12/03/2022] Open
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Gan AM, Tracz-Gaszewska Z, Ellert-Miklaszewska A, Navrulin VO, Ntambi JM, Dobrzyn P. Stearoyl-CoA Desaturase Regulates Angiogenesis and Energy Metabolism in Ischemic Cardiomyocytes. Int J Mol Sci 2022; 23:ijms231810459. [PMID: 36142371 PMCID: PMC9499489 DOI: 10.3390/ijms231810459] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Revised: 09/05/2022] [Accepted: 09/07/2022] [Indexed: 11/21/2022] Open
Abstract
New blood vessel formation is a key component of the cardiac repair process after myocardial infarction (MI). Hypoxia following MI is a major driver of angiogenesis in the myocardium. Hypoxia-inducible factor 1α (HIF1α) is the key regulator of proangiogenic signaling. The present study found that stearoyl-CoA desaturase (SCD) significantly contributed to the induction of angiogenesis in the hypoxic myocardium independently of HIF1α expression. The pharmacological inhibition of SCD activity in HL-1 cardiomyocytes and SCD knockout in an animal model disturbed the expression and secretion of proangiogenic factors including vascular endothelial growth factor-A, proinflammatory cytokines (interleukin-1β, interleukin-6, tumor necrosis factor α, monocyte chemoattractant protein-1, and Rantes), metalloproteinase-9, and platelet-derived growth factor in ischemic cardiomyocytes. These disturbances affected the proangiogenic potential of ischemic cardiomyocytes after SCD depletion. Together with the most abundant SCD1 isoform, the heart-specific SCD4 isoform emerged as an important regulator of new blood vessel formation in the murine post-MI myocardium. We also provide evidence that SCD shapes energy metabolism of the ischemic heart by maintaining the shift from fatty acids to glucose as the substrate that is used for adenosine triphosphate production. Furthermore, we propose that the regulation of the proangiogenic properties of hypoxic cardiomyocytes by key modulators of metabolic signaling such as adenosine monophosphate kinase, protein kinase B (AKT), and peroxisome-proliferator-activated receptor-γ coactivator 1α/peroxisome proliferator-activated receptor α depends on SCD to some extent. Thus, our results reveal a novel mechanism that links SCD to cardiac repair processes after MI.
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Affiliation(s)
- Ana-Maria Gan
- Laboratory of Molecular Medical Biochemistry, Nencki Institute of Experimental Biology of Polish Academy of Sciences, 02-093 Warsaw, Poland
| | - Zuzanna Tracz-Gaszewska
- Laboratory of Molecular Medical Biochemistry, Nencki Institute of Experimental Biology of Polish Academy of Sciences, 02-093 Warsaw, Poland
| | - Aleksandra Ellert-Miklaszewska
- Laboratory of Molecular Neurobiology, Nencki Institute of Experimental Biology of Polish Academy of Sciences, 02-093 Warsaw, Poland
| | - Viktor O. Navrulin
- Laboratory of Molecular Medical Biochemistry, Nencki Institute of Experimental Biology of Polish Academy of Sciences, 02-093 Warsaw, Poland
| | - James M. Ntambi
- Departments of Biochemistry and Nutritional Sciences, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Pawel Dobrzyn
- Laboratory of Molecular Medical Biochemistry, Nencki Institute of Experimental Biology of Polish Academy of Sciences, 02-093 Warsaw, Poland
- Correspondence:
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Hiraishi K, Kurahara LH, Ishikawa K, Go T, Yokota N, Hu Y, Fujita T, Inoue R, Hirano K. Potential of the TRPM7 channel as a novel therapeutic target for pulmonary arterial hypertension. J Smooth Muscle Res 2022; 58:50-62. [PMID: 35944979 PMCID: PMC9364263 DOI: 10.1540/jsmr.58.50] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Pulmonary arterial hypertension (PAH) is an intractable vascular disease characterized by
a progressive increase in pulmonary vascular resistance caused by pulmonary vascular
remodeling, which ultimately leads to right-sided heart failure. PAH remains incurable,
despite the development of PAH-targeted therapeutics centered on pulmonary artery
relaxants. It is necessary to identify the target molecules that contribute to pulmonary
artery remodeling. Transient receptor potential (TRP) channels have been suggested to
modulate pulmonary artery remodeling. Our study focused on the transient receptor
potential ion channel subfamily M, member 7, or the TRPM7 channel, which modulates
endothelial-to-mesenchymal transition and smooth muscle proliferation in the pulmonary
artery. In this review, we summarize the role and expression profile of TRPM7 channels in
PAH progression and discuss TRPM7 channels as possible therapeutic targets. In addition,
we discuss the therapeutic effect of a Chinese herbal medicine, Ophiocordyceps
sinensis (OCS), on PAH progression, which partly involves TRPM7 inhibition.
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Affiliation(s)
- Keizo Hiraishi
- Department of Cardiovascular Physiology, Faculty of Medicine, Kagawa University, 1750-1 Ikenobe, Miki-cho, Kita-gun, Kagawa 761-0793, Japan.,Department of Physiology, School of Medicine, Fukuoka University, 8-19-1 Nanakuma, Jounan-ku, Fukuoka-shi, Fukuoka 814-0180, Japan
| | - Lin Hai Kurahara
- Department of Cardiovascular Physiology, Faculty of Medicine, Kagawa University, 1750-1 Ikenobe, Miki-cho, Kita-gun, Kagawa 761-0793, Japan
| | - Kaori Ishikawa
- Department of General Medicine, Faculty of Medicine, Kagawa University, 1750-1 Ikenobe, Miki-cho, Kita-gun, Kagawa 761-0793, Japan
| | - Tetsuhiko Go
- Department of General Thoracic Surgery, Faculty of Medicine, Faculty of Medicine, Kagawa University, 1750-1 Ikenobe, Miki-cho, Kita-gun, Kagawa 761-0793, Japan
| | - Naoya Yokota
- Department of General Thoracic Surgery, Faculty of Medicine, Faculty of Medicine, Kagawa University, 1750-1 Ikenobe, Miki-cho, Kita-gun, Kagawa 761-0793, Japan
| | - Yaopeng Hu
- Department of Physiology, School of Medicine, Fukuoka University, 8-19-1 Nanakuma, Jounan-ku, Fukuoka-shi, Fukuoka 814-0180, Japan
| | - Takayuki Fujita
- Department of Physiology, School of Medicine, Fukuoka University, 8-19-1 Nanakuma, Jounan-ku, Fukuoka-shi, Fukuoka 814-0180, Japan
| | - Ryuji Inoue
- Department of Physiology, School of Medicine, Fukuoka University, 8-19-1 Nanakuma, Jounan-ku, Fukuoka-shi, Fukuoka 814-0180, Japan
| | - Katsuya Hirano
- Department of Cardiovascular Physiology, Faculty of Medicine, Kagawa University, 1750-1 Ikenobe, Miki-cho, Kita-gun, Kagawa 761-0793, Japan
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Abstract
Mice with insulin receptor (IR)-deficient astrocytes (GFAP-IR knockout [KO] mice) show blunted responses to insulin and reduced brain glucose uptake, whereas IR-deficient astrocytes show disturbed mitochondrial responses to glucose. While exploring the functional impact of disturbed mitochondrial function in astrocytes, we observed that GFAP-IR KO mice show uncoupling of brain blood flow with glucose uptake. Since IR-deficient astrocytes show higher levels of reactive oxidant species (ROS), this leads to stimulation of hypoxia-inducible factor-1α and, consequently, of the vascular endothelial growth factor angiogenic pathway. Indeed, GFAP-IR KO mice show disturbed brain vascularity and blood flow that is normalized by treatment with the antioxidant N-acetylcysteine (NAC). NAC ameliorated high ROS levels, normalized angiogenic signaling and mitochondrial function in IR-deficient astrocytes, and normalized neurovascular coupling in GFAP-IR KO mice. Our results indicate that by modulating glucose uptake and angiogenesis, insulin receptors in astrocytes participate in neurovascular coupling.
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27
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A Retrospective Case Series on Free Flap Reconstruction for Ischemic Diabetic Foot: The Nutrient Flap Further Explained. Plast Reconstr Surg 2022; 149:1452-1461. [PMID: 35426866 DOI: 10.1097/prs.0000000000009132] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND This retrospective case series compares the outcomes and postoperative oxygen levels in patients who underwent free flap versus primary closure/local flap reconstruction for ischemic diabetic foot wounds to determine the influence of free flap on the surrounding ischemic tissues. The authors hypothesized that the free flap would benefit the surrounding ischemic tissue as a nutrient flap by increasing the tissue oxygen content. METHODS The patients were divided into two groups: group 1 underwent free flap reconstruction, and group 2 underwent partial foot amputation with primary closure/local flap. Patient demographics, endovascular intervention, surgical outcome, postreconstruction intervention, and prereconstruction and postreconstruction transcutaneous oximetry were analyzed. RESULTS Among 54 patients, 36 were in group 1 and 18 were in group 2. There were no differences in patient demographics between the two groups. All patients had successful angioplasty. Statistical significance was noted in postreconstruction intervention in which group 2 required 2.8 ± 2.9 débridements (versus 1.2 ± 2.5 for group 1) and seven of 18 below-knee amputations (versus three of 36 for group 1) (p < 0.05). Transcutaneous partial pressure of oxygen levels were significantly higher in group 1 at 6 months after reconstruction (61.6 ± 7.5 versus 32.6 ± 5.8 mmHg) (p < 0.01). CONCLUSION This study shows that the role of the free flap in ischemic diabetic limb may expand beyond that of providing coverage over the vital structures, and it supports the use of the free flap as a nutrient to increase oxygen content in the ischemic diabetic foot. CLINICAL QUESTION/LEVEL OF EVIDENCE Therapeutic, III.
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28
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Sonoda K, Bogahawatta S, Katayama A, Ujike S, Kuroki S, Kitagawa N, Hirotsuru K, Suzuki N, Miyata T, Kawaguchi SI, Tsujita T. Prolyl Hydroxylase Domain Protein Inhibitor Not Harboring a 2-Oxoglutarate Scaffold Protects against Hypoxic Stress. ACS Pharmacol Transl Sci 2022; 5:362-372. [PMID: 35592438 PMCID: PMC9112412 DOI: 10.1021/acsptsci.2c00002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Indexed: 02/07/2023]
Abstract
Hypoxia-inducible factor-α (HIF-α) activation has shown promising results in the treatment of ischemia, such as stroke, myocardial infarction, and chronic kidney disease. A number of HIF-α activators have been developed to improve the symptoms of these diseases. Many feature 2-oxoglutarate (2-OG) scaffolds that interact with the active centers of prolyl hydroxylase domain-containing proteins (PHDs), displacing the coenzyme 2-OG. This stabilizes HIF-α. Therefore, the specificity of the 2-OG analogs is not high. Here, we identified 5-(1-acetyl-5-phenylpyrazolidin-3-ylidene)-1,3-dimethylbarbituric acid (PyrzA) among over 10 000 compounds as a novel HIF activator that does not contain a 2-OG scaffold. In cultured cells, PyrzA enhanced HIF-α stability and upregulated the expression of HIF target genes. Interestingly, PyrzA decreased HIF-1α prolyl hydroxylation, suggesting that PyrzA may activate HIF to prevent the degradation of HIF-α. These results indicate that PyrzA stabilizes HIF via a novel mechanism and could be a potential HIF activator candidate.
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Affiliation(s)
- Kento Sonoda
- Laboratory of Biochemistry, Department of Applied Biochemistry and Food Science, Faculty of Agriculture, Saga University, 1 Honjo-machi, Saga 840-8502, Japan.,Center for Education and Research in Agricultural Innovation, Faculty of Agriculture, Saga University, 152-1 Shonan-cho, Karatsu, Saga 847-0021, Japan.,The United Graduate School of Agricultural Sciences, Kagoshima University 1-21-24 Korimoto, Kagoshima 890-0065, Japan
| | - Sudarma Bogahawatta
- Laboratory of Biochemistry, Department of Applied Biochemistry and Food Science, Faculty of Agriculture, Saga University, 1 Honjo-machi, Saga 840-8502, Japan.,Center for Education and Research in Agricultural Innovation, Faculty of Agriculture, Saga University, 152-1 Shonan-cho, Karatsu, Saga 847-0021, Japan.,The United Graduate School of Agricultural Sciences, Kagoshima University 1-21-24 Korimoto, Kagoshima 890-0065, Japan
| | - Akito Katayama
- Center for Education and Research in Agricultural Innovation, Faculty of Agriculture, Saga University, 152-1 Shonan-cho, Karatsu, Saga 847-0021, Japan
| | - Saki Ujike
- Center for Education and Research in Agricultural Innovation, Faculty of Agriculture, Saga University, 152-1 Shonan-cho, Karatsu, Saga 847-0021, Japan
| | - Sae Kuroki
- Center for Education and Research in Agricultural Innovation, Faculty of Agriculture, Saga University, 152-1 Shonan-cho, Karatsu, Saga 847-0021, Japan
| | - Naho Kitagawa
- Laboratory of Biochemistry, Department of Applied Biochemistry and Food Science, Faculty of Agriculture, Saga University, 1 Honjo-machi, Saga 840-8502, Japan
| | - Kohichi Hirotsuru
- Laboratory of Biochemistry, Department of Applied Biochemistry and Food Science, Faculty of Agriculture, Saga University, 1 Honjo-machi, Saga 840-8502, Japan
| | - Norio Suzuki
- Division of Oxygen Biology, United Centers for Advanced Research and Translational Medicine, Tohoku University Graduate School of Medicine, 2-1 Seiryo-machi, Aobaku, Sendai, Miyagi 980-8575, Japan
| | - Toshio Miyata
- Department of Molecular Medicine and Therapy, Tohoku University Graduate School of Medicine, 2-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi 980-8575, Japan
| | - Shin-Ichi Kawaguchi
- Center for Education and Research in Agricultural Innovation, Faculty of Agriculture, Saga University, 152-1 Shonan-cho, Karatsu, Saga 847-0021, Japan.,The United Graduate School of Agricultural Sciences, Kagoshima University 1-21-24 Korimoto, Kagoshima 890-0065, Japan
| | - Tadayuki Tsujita
- Laboratory of Biochemistry, Department of Applied Biochemistry and Food Science, Faculty of Agriculture, Saga University, 1 Honjo-machi, Saga 840-8502, Japan.,The United Graduate School of Agricultural Sciences, Kagoshima University 1-21-24 Korimoto, Kagoshima 890-0065, Japan
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Yan Y, Xu Y, Yang X, Li Z, Niu K, Liu C, Zhao M, Xiao Q, Wu W. Electron Transfer Flavoprotein (ETF) α Controls Blood Vessel Development by Regulating Endothelial Mitochondrial Bioenergetics and Oxygen Consumption. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:7969916. [PMID: 35313640 PMCID: PMC8933654 DOI: 10.1155/2022/7969916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/06/2021] [Accepted: 02/05/2022] [Indexed: 11/17/2022]
Abstract
While impairment of vascular homeostasis induced by hypercholesterolemia is the first step of cardiovascular diseases, the molecular mechanism behind such impairment is not well known. Here, we reported that high-cholesterol diet (HCD) induced defective vessel sprouting in zebrafish larvae. Electron transfer flavoprotein subunit α (ETFα) (encoded by the ETFA gene), a protein that mediates transfer of electrons from a series of mitochondrial flavoenzymes to the respiratory chain, was downregulated in HCD-fed zebrafish and in endothelial cells treated with oxidized low-density lipoprotein. Knockdown of ETFα with morpholino antisense oligonucleotides reproduced vascular sprouting defects in zebrafish larvae, while replenishing with exogeneous ETFA mRNA could successfully rescue these defects. ETFA knockdown in endothelial cells reduces cell migration, proliferation, and tube formation in vitro. Finally, knockdown of ETFA in endothelial cells also reduced fatty acid oxidation, oxygen consumption rate, and hypoxia-inducible factor-1α (HIF1α) protein levels. Taken together, we demonstrate that downregulation of ETFα is involved in hypercholesterolemia-induced defective vessel sprouting in zebrafish larvae via inhibition of endothelial proliferation and migration. The molecular mechanism behind this phenomenon is the decrease of HIF1α induced by downregulation of ETFα in endothelial cells. This work suggests that disturbance of ETFα-mediated oxygen homeostasis is one of the mechanisms behind hypercholesterolemia-induced vascular dysfunction.
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Affiliation(s)
- Yi Yan
- Department of Cardiology, Translational Research Center for Regenerative Medicine and 3D Printing Technologies, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou 510150, China
- State Key Laboratory of Organ Failure Research, Southern Medical University, Guangzhou 510000, China
| | - Yingyi Xu
- Department of Cardiology, Translational Research Center for Regenerative Medicine and 3D Printing Technologies, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou 510150, China
| | - Xuewen Yang
- Department of Cardiology, Translational Research Center for Regenerative Medicine and 3D Printing Technologies, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou 510150, China
| | - Zhonghao Li
- Department of Pathophysiology, Key Lab for Shock and Microcirculation Research of Guangdong Province, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Kaiyuan Niu
- William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, EC1M 6BQ, UK
| | - Chenxin Liu
- William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, EC1M 6BQ, UK
| | - Ming Zhao
- Department of Pathophysiology, Key Lab for Shock and Microcirculation Research of Guangdong Province, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Qingzhong Xiao
- William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, EC1M 6BQ, UK
- Key Laboratory of Cardiovascular Diseases at The Second Affiliated Hospital and Guangzhou Municipal and Guangdong Provincial Key Laboratory of Protein Modification and Degradation, School of Basic Medical Sciences, Guangzhou Medical University, Xinzao Town, Panyu District, Guangzhou, Guangdong 511436, China
| | - Wei Wu
- Department of Pathophysiology, Key Lab for Shock and Microcirculation Research of Guangdong Province, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China
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30
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Enrico A, Voulgaris D, Östmans R, Sundaravadivel N, Moutaux L, Cordier A, Niklaus F, Herland A, Stemme G. 3D Microvascularized Tissue Models by Laser-Based Cavitation Molding of Collagen. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2109823. [PMID: 35029309 DOI: 10.1002/adma.202109823] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Indexed: 06/14/2023]
Abstract
3D tissue models recapitulating human physiology are important for fundamental biomedical research, and they hold promise to become a new tool in drug development. An integrated and defined microvasculature in 3D tissue models is necessary for optimal cell functions. However, conventional bioprinting only allows the fabrication of hydrogel scaffolds containing vessel-like structures with large diameters (>100 µm) and simple geometries. Recent developments in laser photoablation enable the generation of this type of structure with higher resolution and complexity, but the photo-thermal process can compromise cell viability and hydrogel integrity. To address these limitations, the present work reports in situ 3D patterning of collagen hydrogels by femtosecond laser irradiation to create channels and cavities with diameters ranging from 20 to 60 µm. In this process, laser irradiation of the hydrogel generates cavitation gas bubbles that rearrange the collagen fibers, thereby creating stable microchannels. Such 3D channels can be formed in cell- and organoid-laden hydrogel without affecting the viability outside the lumen and can enable the formation of artificial microvasculature by the culture of endothelial cells and cell media perfusion. Thus, this method enables organs-on-a-chip and 3D tissue models featuring complex microvasculature.
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Affiliation(s)
- Alessandro Enrico
- Division of Micro and Nanosystems, KTH Royal Institute of Technology, Malvinas väg 10, Stockholm, 100 44, Sweden
| | - Dimitrios Voulgaris
- Division of Micro and Nanosystems, KTH Royal Institute of Technology, Malvinas väg 10, Stockholm, 100 44, Sweden
- AIMES - Center for the Advancement of Integrated Medical and Engineering Sciences, Department of Neuroscience, Karolinska Institute, Stockholm, 17177, Sweden
| | - Rebecca Östmans
- Department of Fiber and Polymer Technology, Wallenberg Wood Science Centre, KTH Royal Institute of Technology, Teknikringen 56-58, Stockholm, 100 44, Sweden
| | - Naveen Sundaravadivel
- Division of Micro and Nanosystems, KTH Royal Institute of Technology, Malvinas väg 10, Stockholm, 100 44, Sweden
| | - Lucille Moutaux
- Division of Micro and Nanosystems, KTH Royal Institute of Technology, Malvinas väg 10, Stockholm, 100 44, Sweden
| | - Aurélie Cordier
- Division of Micro and Nanosystems, KTH Royal Institute of Technology, Malvinas väg 10, Stockholm, 100 44, Sweden
| | - Frank Niklaus
- Division of Micro and Nanosystems, KTH Royal Institute of Technology, Malvinas väg 10, Stockholm, 100 44, Sweden
| | - Anna Herland
- Division of Micro and Nanosystems, KTH Royal Institute of Technology, Malvinas väg 10, Stockholm, 100 44, Sweden
- AIMES - Center for the Advancement of Integrated Medical and Engineering Sciences, Department of Neuroscience, Karolinska Institute, Stockholm, 17177, Sweden
| | - Göran Stemme
- Division of Micro and Nanosystems, KTH Royal Institute of Technology, Malvinas väg 10, Stockholm, 100 44, Sweden
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Angiogenesis: A Pivotal Therapeutic Target in the Drug Development of Gynecologic Cancers. Cancers (Basel) 2022; 14:cancers14051122. [PMID: 35267430 PMCID: PMC8908988 DOI: 10.3390/cancers14051122] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Revised: 02/16/2022] [Accepted: 02/17/2022] [Indexed: 01/27/2023] Open
Abstract
Simple Summary Angiogenesis, defined as the abnormal development of new blood vessels in cancer, is a key component of cancer development. Clinical trials have proven that angiogenesis blockers can be effective in halting cancer growth across numerous types of gynecologic cancers. This review discusses the mechanisms of angiogenesis in gynecologic cancers, current practices and areas for development. Abstract Since the discovery of angiogenesis and its relevance to the tumorigenesis of gynecologic malignancies, a number of therapeutic agents have been developed over the last decade, some of which have become standard treatments in combination with other therapies. Limited clinical activity has been demonstrated with anti-angiogenic monotherapies, and ongoing trials are focused on combination strategies with cytotoxic agents, immunotherapies and other targeted treatments. This article reviews the science behind angiogenesis within the context of gynecologic cancers, the evidence supporting the targeting of these pathways and future directions in clinical trials.
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32
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Impact of Oxidative Stress on Embryogenesis and Fetal Development. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2022; 1391:221-241. [PMID: 36472825 DOI: 10.1007/978-3-031-12966-7_13] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Multiple cellular processes are regulated by oxygen radicals or reactive oxygen species (ROS) where they play crucial roles as primary or secondary messengers, particularly during cell proliferation, differentiation, and apoptosis. Embryogenesis and organogenesis encompass all these processes; therefore, their role during these crucial life events cannot be ignored, more so when there is an imbalance in redox homeostasis. Perturbed redox homeostasis is responsible for damaging the biomolecules such as lipids, proteins, and nucleic acids resulting in leaky membrane, altered protein, enzyme function, and DNA damage which have adverse impact on the embryo and fetal development. In this article, we attempt to summarize the available data in literature for an in-depth understanding of redox regulation during development that may help in optimizing the pregnancy outcome both under natural and assisted conditions.
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Filippi L, Pini A, Cammalleri M, Bagnoli P, Dal Monte M. β3-Adrenoceptor, a novel player in the round-trip from neonatal diseases to cancer: Suggestive clues from embryo. Med Res Rev 2021; 42:1179-1201. [PMID: 34967048 PMCID: PMC9303287 DOI: 10.1002/med.21874] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Revised: 09/29/2021] [Accepted: 12/15/2021] [Indexed: 01/19/2023]
Abstract
The role of the β-adrenoceptors (β-ARs) in hypoxia-driven diseases has gained visibility after the demonstration that propranolol promotes the regression of infantile hemangiomas and ameliorates the signs of retinopathy of prematurity (ROP). Besides the role of β2-ARs, preclinical studies in ROP have also revealed that β3-ARs are upregulated by hypoxia and that they are possibly involved in retinal angiogenesis. In a sort of figurative round trip, peculiarities typical of ROP, where hypoxia drives retinal neovascularization, have been then translated to cancer, a disease equally characterized by hypoxia-driven angiogenesis. In this step, investigating the role of β3-ARs has taken advantage of the assumption that cancer growth uses a set of strategies in common with embryo development. The possibility that hypoxic induction of β3-ARs may represent one of the mechanisms through which primarily embryo (and then cancer, as an astute imitator) adapts to grow in an otherwise hostile environment, has grown evidence. In both cancer and embryo, β3-ARs exert similar functions by exploiting a metabolic shift known as the Warburg effect, by acquiring resistance against xenobiotics, and by inducing a local immune tolerance. An additional potential role of β3-AR as a marker of stemness has been suggested by the finding that its antagonism induces cancer cell differentiation evoking that β3-ARs may help cancer to grow in a nonhospital environment, a strategy also exploited by embryos. From cancer, the round trip goes back to neonatal diseases for which new possible interpretative keys and potential pharmacological perspectives have been suggested.
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Affiliation(s)
- Luca Filippi
- Department of Clinical and Experimental Medicine, Neonatology and Neonatal Intensive Care UnitUniversity of PisaPisaItaly
| | - Alessandro Pini
- Department of Experimental and Clinical MedicineUniversity of FlorenceFlorenceItaly
| | - Maurizio Cammalleri
- Department of Biology, Unit of General PhysiologyUniversity of PisaPisaItaly
| | - Paola Bagnoli
- Department of Biology, Unit of General PhysiologyUniversity of PisaPisaItaly
| | - Massimo Dal Monte
- Department of Biology, Unit of General PhysiologyUniversity of PisaPisaItaly
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Chu YD, Lim SN, Yeh CT, Lin WR. COX5B-Mediated Bioenergetic Alterations Modulate Cell Growth and Anticancer Drug Susceptibility by Orchestrating Claudin-2 Expression in Colorectal Cancers. Biomedicines 2021; 10:biomedicines10010060. [PMID: 35052740 PMCID: PMC8772867 DOI: 10.3390/biomedicines10010060] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Revised: 12/21/2021] [Accepted: 12/27/2021] [Indexed: 11/23/2022] Open
Abstract
Oxidative phosphorylation (OXPHOS) consists of four enzyme complexes and ATP synthase, and is crucial for maintaining physiological tissue and cell growth by supporting the main bioenergy pool. Cytochrome c oxidase (COX) has been implicated as a primary regulatory site of OXPHOS. Recently, COX subunit 5B (COX5B) emerged as a potential biomarker associated with unfavorable prognosis by modulating cell behaviors in specific cancer types. However, its molecular mechanism remains unclear, particularly in colorectal cancers (CRCs). To understand the role of COX5B in CRCs, the expression and postoperative outcome associations using independent in-house patient cohorts were evaluated. A higher COX5B tumor/nontumor expression ratio was associated with unfavorable clinical outcomes (p = 0.001 and 0.011 for overall and disease-free survival, respectively. In cell-based experiments, the silencing of COX5B repressed cell growth and enhanced the susceptibility of CRCs cells to anticancer drugs. Finally, downstream effectors identified by RNA sequencing followed by RT-qPCR and functional compensation experiments revealed that the tight junction protein Claudin-2 (CLDN2) acts downstream of COX5B-mediated bioenergetic alterations in controlling cell growth and the sensitivity to anticancer drugs in CRCs cells. In conclusion, it was found that COX5B promoted cell growth and attenuated anticancer drugs susceptibility in CRCs cells by orchestrating CLDN2 expression, which may contribute to unfavorable postoperative outcomes of patients with CRCs.
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Affiliation(s)
- Yu-De Chu
- Liver Research Center, Chang Gung Memorial Hospital, Taoyuan 333, Taiwan;
| | - Siew-Na Lim
- Department of Neurology, Linkou Chang Gung Memorial Hospital, Taoyuan 333, Taiwan;
- College of Medicine, Chang Gung University, Taoyuan 333, Taiwan
| | - Chau-Ting Yeh
- Liver Research Center, Chang Gung Memorial Hospital, Taoyuan 333, Taiwan;
- College of Medicine, Chang Gung University, Taoyuan 333, Taiwan
- Molecular Medicine Research Center, Chang Gung University, Taoyuan 333, Taiwan
- Department of Hepatology and Gastroenterology, Linkou Chang Gung Memorial Hospital, Taoyuan 333, Taiwan
- Correspondence: (C.-T.Y.); (W.-R.L.)
| | - Wey-Ran Lin
- Liver Research Center, Chang Gung Memorial Hospital, Taoyuan 333, Taiwan;
- College of Medicine, Chang Gung University, Taoyuan 333, Taiwan
- Department of Hepatology and Gastroenterology, Linkou Chang Gung Memorial Hospital, Taoyuan 333, Taiwan
- Correspondence: (C.-T.Y.); (W.-R.L.)
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Cx43 Promotes Endothelial Cell Migration and Angiogenesis via the Tyrosine Phosphatase SHP-2. Int J Mol Sci 2021; 23:ijms23010294. [PMID: 35008716 PMCID: PMC8745637 DOI: 10.3390/ijms23010294] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Revised: 12/21/2021] [Accepted: 12/24/2021] [Indexed: 12/16/2022] Open
Abstract
The gap junction protein connexin 43 (Cx43) is associated with increased cell migration and to related changes of the actin cytoskeleton, which is mediated via its C-terminal cytoplasmic tail and is independent of its channel function. Cx43 has been shown to possess an angiogenic potential, however, the role of Cx43 in endothelial cell migration has not yet been investigated. Here, we found that the knock-down of Cx43 by siRNA in human microvascular endothelial cells (HMEC) reduces migration, as assessed by a wound assay in vitro and impaired aortic vessel sprouting ex vivo. Immunoprecipitation of Cx43 revealed an interaction with the tyrosine phosphatase SHP-2, which enhanced its phosphatase activity, as observed in Cx43 expressing HeLa cells compared to cells treated with an empty vector. Interestingly, the expression of a dominant negative substrate trapping mutant SHP-2 (CS) in HMEC, via lentiviral transduction, also impaired endothelial migration to a similar extent as Cx43 siRNA compared to SHP-2 WT. Moreover, the reduction in endothelial migration upon Cx43 siRNA could not be rescued by the introduction of a constitutively active SHP-2 construct (EA). Our data demonstrate that Cx43 and SHP-2 mediate endothelial cell migration, revealing a novel interaction between Cx43 and SHP-2, which is essential for this process.
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Li J, Wang J, Wang Z. Circ_0006768 upregulation attenuates oxygen-glucose deprivation/reoxygenation-induced human brain microvascular endothelial cell injuries by upregulating VEZF1 via miR-222-3p inhibition. Metab Brain Dis 2021; 36:2521-2534. [PMID: 34146216 DOI: 10.1007/s11011-021-00775-8] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Accepted: 06/06/2021] [Indexed: 11/29/2022]
Abstract
Circular RNAs (circRNAs) have been widely implicated in multiple diseases, including ischemic stroke. This study aimed to explore the function and functional mechanism of circ_0006768 in oxygen-glucose deprivation/reoxygenation (OGD/R)-induced brain injury models of ischemic stroke. Human brain microvascular endothelial cells (HBMECs) were induced by OGD/R to mimic ischemic stroke models in vitro. The expression of circ_0006768, microRNA-222-3p (miR-222-3p) and vascular endothelial zinc finger 1 (VEZF1) was detected by quantitative real-time PCR (qPCR). Cell viability, angiogenesis ability and cell migration were assessed by cell counting kit-8 (CCK-8) assay, tube formation assay and wound healing assay, respectively. The releases of pro-inflammatory factors were determined by commercial enzyme-linked immunosorbent assay (ELISA) kits. The protein levels of vascular endothelial growth factor A (VEGFA), N-cadherin and VEZF1 were detected by western blot. The putative relationship between miR-222-3p and circ_0006768 or VEZF1 was validated by dual-luciferase reporter assay, RNA Immunoprecipitation (RIP) assay and pull-down assay. Circ_0006768 was poorly expressed in ischemic stroke plasma and OGD/R-induced HBMECs. OGD/R inhibited cell viability, angiogenesis and cell migration and promoted the releases of pro-inflammatory factors, while circ_0006768 overexpression or miR-222-3p inhibition partially abolished the effects of OGD/R. MiR-222-3p was targeted by circ_0006768, and VEZF1 was a target of miR-222-3p. Circ_0006768 enriched the expression of VEZF1 via mediating miR-222-3p inhibition. Rescue experiments presented that the effects of circ_0006768 overexpression were reversed by miR-222-3p restoration or VEZF1 knockdown. Circ_0006768 overexpression attenuates OGD/R-induced HBMEC injuries by upregulating VEZF1 via miR-222-3p inhibition.
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Affiliation(s)
- Jing Li
- Department of Internal Medicine-Neurology, Hengshui People's Hospital, No. 180, Renmin East Road, Hengshui, 053000, China
| | - Jiguang Wang
- Department of Internal Medicine-Neurology, Hengshui People's Hospital, No. 180, Renmin East Road, Hengshui, 053000, China.
| | - Zhi Wang
- Department of Internal Medicine-Neurology, Hengshui People's Hospital, No. 180, Renmin East Road, Hengshui, 053000, China
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Lemieux P, Birot O. Altitude, Exercise, and Skeletal Muscle Angio-Adaptive Responses to Hypoxia: A Complex Story. Front Physiol 2021; 12:735557. [PMID: 34552509 PMCID: PMC8450406 DOI: 10.3389/fphys.2021.735557] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Accepted: 08/16/2021] [Indexed: 12/18/2022] Open
Abstract
Hypoxia, defined as a reduced oxygen availability, can be observed in many tissues in response to various physiological and pathological conditions. As a hallmark of the altitude environment, ambient hypoxia results from a drop in the oxygen pressure in the atmosphere with elevation. A hypoxic stress can also occur at the cellular level when the oxygen supply through the local microcirculation cannot match the cells’ metabolic needs. This has been suggested in contracting skeletal myofibers during physical exercise. Regardless of its origin, ambient or exercise-induced, muscle hypoxia triggers complex angio-adaptive responses in the skeletal muscle tissue. These can result in the expression of a plethora of angio-adaptive molecules, ultimately leading to the growth, stabilization, or regression of muscle capillaries. This remarkable plasticity of the capillary network is referred to as angio-adaptation. It can alter the capillary-to-myofiber interface, which represent an important determinant of skeletal muscle function. These angio-adaptive molecules can also be released in the circulation as myokines to act on distant tissues. This review addresses the respective and combined potency of ambient hypoxia and exercise to generate a cellular hypoxic stress in skeletal muscle. The major skeletal muscle angio-adaptive responses to hypoxia so far described in this context will be discussed, including existing controversies in the field. Finally, this review will highlight the molecular complexity of the skeletal muscle angio-adaptive response to hypoxia and identify current gaps of knowledges in this field of exercise and environmental physiology.
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Affiliation(s)
- Pierre Lemieux
- Muscle Health Research Centre, School of Kinesiology and Health Science, York University, Toronto, ON, Canada
| | - Olivier Birot
- Muscle Health Research Centre, School of Kinesiology and Health Science, York University, Toronto, ON, Canada
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Narasimhan B, Narasimhan H, Lorente-Ros M, Romeo FJ, Bhatia K, Aronow WS. Therapeutic angiogenesis in coronary artery disease: a review of mechanisms and current approaches. Expert Opin Investig Drugs 2021; 30:947-963. [PMID: 34346802 DOI: 10.1080/13543784.2021.1964471] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
INTRODUCTION Despite tremendous advances, the shortcomings of current therapies for coronary disease are evidenced by the fact that it remains the leading cause of death in many parts of the world. There is hence a drive to develop novel therapies to tackle this disease. Therapeutic approaches to coronary angiogenesis have long been an area of interest in lieu of its incredible, albeit unrealized potential. AREAS COVERED This paper offers an overview of mechanisms of native angiogenesis and a description of angiogenic growth factors. It progresses to outline the advances in gene and stem cell therapy and provides a brief description of other investigational approaches to promote angiogenesis. Finally, the hurdles and limitations unique to this particular area of study are discussed. EXPERT OPINION An effective, sustained, and safe therapeutic option for angiogenesis truly could be the paradigm shift for cardiovascular medicine. Unfortunately, clinically meaningful therapeutic options remain elusive because promising animal studies have not been replicated in human trials. The sheer complexity of this process means that numerous major hurdles remain before therapeutic angiogenesis truly makes its way from the bench to the bedside.
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Affiliation(s)
- Bharat Narasimhan
- Department Of Medicine, Mount Sinai St.Lukes-Roosevelt, Icahn School Of Medicine At Mount Sinai, New York, NY, USA
| | | | - Marta Lorente-Ros
- Department Of Medicine, Mount Sinai St.Lukes-Roosevelt, Icahn School Of Medicine At Mount Sinai, New York, NY, USA
| | - Francisco Jose Romeo
- Department Of Medicine, Mount Sinai St.Lukes-Roosevelt, Icahn School Of Medicine At Mount Sinai, New York, NY, USA
| | - Kirtipal Bhatia
- Department Of Medicine, Mount Sinai St.Lukes-Roosevelt, Icahn School Of Medicine At Mount Sinai, New York, NY, USA
| | - Wilbert S Aronow
- Department of Cardiology, Westchester Medical Center/New York Medical College, Valhalla, NY, USA
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Liang JP, Accolla RP, Soundirarajan M, Emerson A, Coronel MM, Stabler CL. Engineering a macroporous oxygen-generating scaffold for enhancing islet cell transplantation within an extrahepatic site. Acta Biomater 2021; 130:268-280. [PMID: 34087442 DOI: 10.1016/j.actbio.2021.05.028] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Revised: 05/14/2021] [Accepted: 05/20/2021] [Indexed: 01/04/2023]
Abstract
Insufficient oxygenation is a serious issue arising within cell-based implants, as the hypoxic period between implantation and vascularization of the graft is largely unavoidable. In situ oxygen supplementation at the implant site should significantly mitigate hypoxia-induced cell death and dysfunction, as well as improve transplant efficacy, particularly for highly metabolically active cells such as pancreatic islets. One promising approach is the use of an oxygen generating material created through the encapsulation of calcium peroxide within polydimethylsiloxane (PDMS), termed OxySite. In this study, OxySite microbeads were incorporated within a macroporous PDMS scaffold to create a single, streamlined, oxygen generating macroporous scaffold. The resulting OxySite scaffold generated sufficient local oxygenation for up to 20 days, with nontoxic levels of reaction intermediates or by-products. The benefit of local oxygen release on transplant efficacy was investigated in a diabetic Lewis rat syngeneic transplantation model using a clinically relevant islet dosage (10,000 IEQ/kg BW) with different isolation purities (80%, 90%, and 99%). Impure islet preparations containing pancreatic non-islet cells, which are common in the clinical setting, permit examination of the effect of increased overall oxygen demand. Our transplantation outcomes showed that elevating the oxygen demand of the graft with decreasing isolation purity resulted in decreased graft efficacy for control implants, while the integration of OxySite significantly mitigated this impact and resulted in improved graft outcomes. Results highlight the superior clinical translational potential of these off-the-shelf OxySite scaffolds, where islet purity and the overall oxygen demands of implants are increased and highly variable. The oxygen-generating porous scaffold further provides a broad platform for enhancing the survival and efficacy of cellular implants for numerous other applications. STATEMENT OF SIGNIFICANCE: Hypoxia is a serious issue within tissue engineered implants. To address this challenge, we developed a distinct macroporous scaffold platform containing oxygen-generating microbeads. This oxygen-generating scaffold showed the potential to support clinically relevant cell dosages for islet transplantation, leading to improved treatment efficacy. This platform can also be used to mitigate hypoxia for other biomedical applications.
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Affiliation(s)
- Jia-Pu Liang
- J. Crayton Pruitt Family Department of Biomedical Engineering, Gainesville, FL, USA
| | - Robert P Accolla
- J. Crayton Pruitt Family Department of Biomedical Engineering, Gainesville, FL, USA
| | | | - Amy Emerson
- J. Crayton Pruitt Family Department of Biomedical Engineering, Gainesville, FL, USA
| | - Maria M Coronel
- J. Crayton Pruitt Family Department of Biomedical Engineering, Gainesville, FL, USA
| | - Cherie L Stabler
- J. Crayton Pruitt Family Department of Biomedical Engineering, Gainesville, FL, USA; University of Florida Diabetes Institute, University of Florida, Gainesville, FL, USA.
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Hart CG, Karimi-Abdolrezaee S. Recent insights on astrocyte mechanisms in CNS homeostasis, pathology, and repair. J Neurosci Res 2021; 99:2427-2462. [PMID: 34259342 DOI: 10.1002/jnr.24922] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2021] [Revised: 06/06/2021] [Accepted: 06/24/2021] [Indexed: 12/20/2022]
Abstract
Astrocytes play essential roles in development, homeostasis, injury, and repair of the central nervous system (CNS). Their development is tightly regulated by distinct spatial and temporal cues during embryogenesis and into adulthood throughout the CNS. Astrocytes have several important responsibilities such as regulating blood flow and permeability of the blood-CNS barrier, glucose metabolism and storage, synapse formation and function, and axon myelination. In CNS pathologies, astrocytes also play critical parts in both injury and repair mechanisms. Upon injury, they undergo a robust phenotypic shift known as "reactive astrogliosis," which results in both constructive and deleterious outcomes. Astrocyte activation and migration at the site of injury provides an early defense mechanism to minimize the extent of injury by enveloping the lesion area. However, astrogliosis also contributes to the inhibitory microenvironment of CNS injury and potentiate secondary injury mechanisms, such as inflammation, oxidative stress, and glutamate excitotoxicity, which facilitate neurodegeneration in CNS pathologies. Intriguingly, reactive astrocytes are increasingly a focus in current therapeutic strategies as their activation can be modulated toward a neuroprotective and reparative phenotype. This review will discuss recent advancements in knowledge regarding the development and role of astrocytes in the healthy and pathological CNS. We will also review how astrocytes have been genetically modified to optimize their reparative potential after injury, and how they may be transdifferentiated into neurons and oligodendrocytes to promote repair after CNS injury and neurodegeneration.
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Affiliation(s)
- Christopher G Hart
- Department of Physiology and Pathophysiology, Spinal Cord Research Centre, Children's Hospital Research Institute of Manitoba, University of Manitoba, Winnipeg, MB, Canada
| | - Soheila Karimi-Abdolrezaee
- Department of Physiology and Pathophysiology, Spinal Cord Research Centre, Children's Hospital Research Institute of Manitoba, University of Manitoba, Winnipeg, MB, Canada
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Ullah K, Wu R. Hypoxia-Inducible Factor Regulates Endothelial Metabolism in Cardiovascular Disease. Front Physiol 2021; 12:670653. [PMID: 34290616 PMCID: PMC8287728 DOI: 10.3389/fphys.2021.670653] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Accepted: 05/13/2021] [Indexed: 12/30/2022] Open
Abstract
Endothelial cells (ECs) form a physical barrier between the lumens and vascular walls of arteries, veins, capillaries, and lymph vessels; thus, they regulate the extravasation of nutrients and oxygen from the circulation into the perivascular space and participate in mechanisms that maintain cardiovascular homeostasis and promote tissue growth and repair. Notably, their role in tissue repair is facilitated, at least in part, by their dependence on glycolysis for energy production, which enables them to resist hypoxic damage and promote angiogenesis in ischemic regions. ECs are also equipped with a network of oxygen-sensitive molecules that collectively activate the response to hypoxic injury, and the master regulators of the hypoxia response pathway are hypoxia-inducible factors (HIFs). HIFs reinforce the glycolytic dependence of ECs under hypoxic conditions, but whether HIF activity attenuates or exacerbates the progression and severity of cardiovascular dysfunction varies depending on the disease setting. This review summarizes how HIF regulates the metabolic and angiogenic activity of ECs under both normal and hypoxic conditions and in a variety of diseases that are associated with cardiovascular complications.
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Affiliation(s)
- Karim Ullah
- Biochemistry and Molecular Medicine, University of Oulu, Oulu, Finland
| | - Rongxue Wu
- Biological Sciences Division, Department of Medicine, University of Chicago, Chicago, IL, United States
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Gervais L, Bardin AJ. Tracheal remodelling supports stem cells. Nat Cell Biol 2021; 23:580-582. [PMID: 34040165 DOI: 10.1038/s41556-021-00695-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Louis Gervais
- Institut Curie, PSL Research University, CNRS UMR 3215, INSERM U934, Stem Cells and Tissue Homeostasis Group, Paris, France.
| | - Allison J Bardin
- Institut Curie, PSL Research University, CNRS UMR 3215, INSERM U934, Stem Cells and Tissue Homeostasis Group, Paris, France.
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Immunotherapy Using Oxygenated Water and Tumor-Derived Exosomes Potentiates Antitumor Immune Response and Attenuates Malignancy Tendency in Mice Model of Breast Cancer. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2021; 2021:5529484. [PMID: 34194604 PMCID: PMC8181112 DOI: 10.1155/2021/5529484] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Revised: 03/22/2021] [Accepted: 04/23/2021] [Indexed: 01/16/2023]
Abstract
Breast cancer is one of the most common type of tumor and the leading cause of death in the world's female population. Various therapeutic approaches have been used to treat tumors but have not led to complete recovery and have even damaged normal cells in the body. Moreover, metastatic tumors such as breast cancer are much more resistant to treatment, and current treatments have not been very successful in treating them and remain a challenge. Therefore, new approaches should be applied to overcome this problem. Given the importance of hypoxia in tumor survival, we aimed to test the antitumor effects of oxygenated water to decrease hypoxia along with tumor-derived exosomes to target tumor. The purpose of administering oxygenated water and tumor exosomes was to reduce hypoxia and establish an effective immune response against tumor antigens, respectively. For this purpose, the breast cancer mice model was induced using the 4T1 cell line in Balb/c mice and treated with oxygenated water via an intratumoral (IT) and/or intraperitoneal (IP) route and/or exosome (TEX). Oxygenation via the IT+IP route was more efficient than oxygenation via the IT or IP route. The efficiency of oxygenation via the two routes along with TEX led to the best therapeutic outcome. Antitumor immune responses directed by TEX became optimized when systemic (IP) and local (IT) oxygenation was applied compared to administration of TEX alone. Results demonstrated a significant reduction in tumor size and the highest levels of IFN-γ and IL-17 and the lowest levels of IL-4 FoxP3, HIF-1α, VEGF, MMP-2, and MMP-9 in the IT+IP+TEX-treated group. Oxygenated water on the one hand could reduce tumor size, hypoxia, angiogenesis, and metastasis in the tumor microenvironment and on the other hand increases the effective immune response against the tumor systemically. This therapeutic approach is proposed as a new strategy for devising vaccines in a personalized approach.
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Kaymaz A, Ulaş F, Çetinkaya A, Erimşah S. Investigating the effects of carvacrol in rats using oxygen-induced retinopathy model. Indian J Ophthalmol 2021; 69:1219-1223. [PMID: 33913864 PMCID: PMC8186611 DOI: 10.4103/ijo.ijo_1935_20] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Purpose: Investigating the effects of intraperitoneal carvacrol administration in rats using the oxygen-induced retinopathy (OIR) model. Methods: A total of 28 newborn Sprague Dawley rats were used and the OIR model was created using the 50/10% oxygen model. The study composed of four groups in total. While the OIR model was not used in Group I (control group), it was created for Groups II, III, and IV. About 0.01 mL carvacrol, bevacizumab, or 0.9% NaCl was administered intraperitoneal (IP) to the rats in all groups on postnatal day (PND) 14 as follows: Group I and Group II were administered 0.9% NaCl, Group III was administered bevacizumab, and Group IV was administered carvacrol. On PND 18, rats were sacrificed and their right eyes were enucleated. Results: Histopathological and immunohistochemical studies showed that the number of vascular endothelial cells (VECs), vascular endothelial growth factor (VEGF), and tumor necrosis factor-α (TNF-α) decreased similarly in Group III and Group IV compared with Group II. VECs values for Group I, Group II, Group III, and Group IV were measured as 0 ± 0, 26.45 ± 4.57, 7.75 ± 1.98, and 5.78 ± 1.72, respectively, and it differed significantly between groups (P < 0.001). Likewise, VEGF levels were observed as 0.06 ± 0.01, 3.31 ± 0.53, 2.47 ± 0.44, and 2.49 ± 0.52, respectively, and it differed significantly between groups (P < 0.001). TNF-α levels were recorded as 0.06 ± 0.01, 3.58 ± 0.38, 2.46 ± 0.49, and 2.29 ± 0.25, respectively, and it differed significantly between groups (P < 0.001). VECs, VEGF, and TNF-α were similar between Group III and IV (range of P values were 0.486–0.998). Conclusion: The study demonstrated that carvacrol significantly reduced retinal pathological angiogenesis, NV, VEC nuclei count, VEGF, and TNF-α levels. Moreover, the observed effects were comparable to those of bevacizumab.
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Affiliation(s)
- Abdulgani Kaymaz
- Department of Ophthalmology, Faculty of Medicine, Bolu Abant Izzet Baysal University, Bolu, Turkey
| | - Fatih Ulaş
- Department of Ophthalmology, Faculty of Medicine, Bolu Abant Izzet Baysal University, Bolu, Turkey
| | - Ayhan Çetinkaya
- Department of Physiology, Faculty of Medicine, Bolu Abant Izzet Baysal University, Bolu, Turkey
| | - Sevilay Erimşah
- Department of Histology and Embryology, Faculty of Medicine, Bolu Abant Izzet Baysal University, Bolu, Turkey
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Tamamouna V, Rahman MM, Petersson M, Charalambous I, Kux K, Mainor H, Bolender V, Isbilir B, Edgar BA, Pitsouli C. Remodelling of oxygen-transporting tracheoles drives intestinal regeneration and tumorigenesis in Drosophila. Nat Cell Biol 2021; 23:497-510. [PMID: 33972730 PMCID: PMC8567841 DOI: 10.1038/s41556-021-00674-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Accepted: 03/31/2021] [Indexed: 02/03/2023]
Abstract
The Drosophila trachea, as the functional equivalent of mammalian blood vessels, senses hypoxia and oxygenates the body. Here, we show that the adult intestinal tracheae are dynamic and respond to enteric infection, oxidative agents and tumours with increased terminal branching. Increased tracheation is necessary for efficient damage-induced intestinal stem cell (ISC)-mediated regeneration and is sufficient to drive ISC proliferation in undamaged intestines. Gut damage or tumours induce HIF-1α (Sima in Drosophila), which stimulates tracheole branching via the FGF (Branchless (Bnl))-FGFR (Breathless (Btl)) signalling cascade. Bnl-Btl signalling is required in the intestinal epithelium and the trachea for efficient damage-induced tracheal remodelling and ISC proliferation. Chemical or Pseudomonas-generated reactive oxygen species directly affect the trachea and are necessary for branching and intestinal regeneration. Similarly, tracheole branching and the resulting increase in oxygenation are essential for intestinal tumour growth. We have identified a mechanism of tracheal-intestinal tissue communication, whereby damage and tumours induce neo-tracheogenesis in Drosophila, a process reminiscent of cancer-induced neoangiogenesis in mammals.
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Affiliation(s)
- Vasilia Tamamouna
- University of Cyprus, Department of Biological Sciences, 1 Panepistimiou Avenue, 2109 Aglantzia, Cyprus
| | - M. Mahidur Rahman
- Huntsman Cancer Institute, Department of Oncological Sciences, University of Utah, Salt Lake City, UT 84112, USA
| | - Monika Petersson
- German Cancer Research Center (DKFZ)-Center for Molecular Biology (ZMBH), University of Heidelberg Alliance, Im Neuenheimer Feld 282, 69120 Heidelberg, Germany
| | - Irini Charalambous
- University of Cyprus, Department of Biological Sciences, 1 Panepistimiou Avenue, 2109 Aglantzia, Cyprus
| | - Kristina Kux
- University of Cyprus, Department of Biological Sciences, 1 Panepistimiou Avenue, 2109 Aglantzia, Cyprus
| | - Hannah Mainor
- Huntsman Cancer Institute, Department of Oncological Sciences, University of Utah, Salt Lake City, UT 84112, USA
| | - Verena Bolender
- German Cancer Research Center (DKFZ)-Center for Molecular Biology (ZMBH), University of Heidelberg Alliance, Im Neuenheimer Feld 282, 69120 Heidelberg, Germany
| | - Buse Isbilir
- German Cancer Research Center (DKFZ)-Center for Molecular Biology (ZMBH), University of Heidelberg Alliance, Im Neuenheimer Feld 282, 69120 Heidelberg, Germany
| | - Bruce A. Edgar
- Huntsman Cancer Institute, Department of Oncological Sciences, University of Utah, Salt Lake City, UT 84112, USA,Corresponding authors ,
| | - Chrysoula Pitsouli
- University of Cyprus, Department of Biological Sciences, 1 Panepistimiou Avenue, 2109 Aglantzia, Cyprus,Corresponding authors ,
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Marcone S, Buckley A, Ryan CJ, McCabe M, Lynam-Lennon N, Matallanas D, O Sullivan J, Kennedy S. Proteomic signatures of radioresistance: Alteration of inflammation, angiogenesis and metabolism-related factors in radioresistant oesophageal adenocarcinoma. Cancer Treat Res Commun 2021; 27:100376. [PMID: 33882379 DOI: 10.1016/j.ctarc.2021.100376] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2021] [Revised: 04/09/2021] [Accepted: 04/11/2021] [Indexed: 01/06/2023]
Abstract
The clinical management of locally advanced oesophageal adenocarcinoma (OAC) involves neoadjuvant chemoradiotherapy (CRT), but as radioresistance remains a major clinical challenge, complete pathological response to CRT only occurs in 20-30% of patients. In this study we used an established isogenic cell line model of radioresistant OAC to detect proteomic signatures of radioresistance to identify novel molecular and cellular targets of radioresistance in OAC. A total of 5785 proteins were identified of which 251 were significantly modulated in OE33R cells, when compared to OE33P. Gene ontology and pathway analysis of these significantly modulated proteins demonstrated altered metabolism in radioresistant cells accompanied by an inhibition of apoptosis. In addition, inflammatory and angiogenic pathways were positively regulated in radioresistant cells compared to the radiosensitive cells. In this study, we demonstrate, for the first time, a comprehensive proteomic profile of the established isogenic cell line model of radioresistant OAC. This analysis provides insights into the molecular and cellular pathways which regulate radioresistance in OAC. Furthermore, it identifies pathway specific signatures of radioresistance that will direct studies on the development of targeted therapies and personalised approaches to radiotherapy.
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Affiliation(s)
- Simone Marcone
- Department of Surgery, Trinity Translational Medicine Institute, Trinity St. James's Cancer Institute, St. James's Hospital, Trinity College Dublin, Dublin, Ireland.
| | - Amy Buckley
- Department of Surgery, Trinity Translational Medicine Institute, Trinity St. James's Cancer Institute, St. James's Hospital, Trinity College Dublin, Dublin, Ireland
| | - Colm J Ryan
- School of Computer Science, University College Dublin, Dublin 4, Ireland; Systems Biology Ireland, School of Medicine, University College Dublin, Dublin 4, Ireland
| | - Mark McCabe
- Department of Surgery, Trinity Translational Medicine Institute, Trinity St. James's Cancer Institute, St. James's Hospital, Trinity College Dublin, Dublin, Ireland
| | - Niamh Lynam-Lennon
- Department of Surgery, Trinity Translational Medicine Institute, Trinity St. James's Cancer Institute, St. James's Hospital, Trinity College Dublin, Dublin, Ireland
| | - David Matallanas
- Systems Biology Ireland, School of Medicine, University College Dublin, Dublin 4, Ireland
| | - Jacintha O Sullivan
- Department of Surgery, Trinity Translational Medicine Institute, Trinity St. James's Cancer Institute, St. James's Hospital, Trinity College Dublin, Dublin, Ireland
| | - Susan Kennedy
- Department of Surgery, Trinity Translational Medicine Institute, Trinity St. James's Cancer Institute, St. James's Hospital, Trinity College Dublin, Dublin, Ireland
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Shi L, Lin F, Zhou M, Li Y, Li W, Shan G, Xu Y, Xu J, Yang J. Preparation of biocompatible wound dressings with dual release of antibiotic and platelet-rich plasma for enhancing infected wound healing. J Biomater Appl 2021; 36:219-236. [PMID: 33853425 DOI: 10.1177/0885328221996013] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The ever-growing threats of bacterial infection and chronic wound healing have provoked an urgent need for novel antibacterial wound dressings. In this study, we developed a wound dressing for the treatment of infected wounds, which can reduce the inflammatory period (through the use of gentamycin sulfate (GS)) and enhance the granulation stage (through the addition of platelet-rich plasma (PRP)). Herein, the sustained antimicrobial CMC/GMs@GS/PRP wound dressings were developed by using gelatin microspheres (GMs) loading GS and PRP, covalent bonding to carboxymethyl chitosan (CMC). The prepared dressings exhibited high water uptake capability, appropriate porosity, excellent mechanical properties, sustain release of PRP and GS. Meanwhile, the wound dressing showed good biocompatibility and excellent antibacterial ability against Gram-negative and Gram-positive bacteria. Moreover, in vivo experiments further demonstrated that the prepared dressings could accelerate the healing process of E. coli and S. aureus-infected full-thickness wounds in vivo, reepithelialization, collagen deposition and angiogenesis. In addition, the treatment of CMC/GMs@GS/PRP wound dressing could reduce bacterial count, inhibit pro-inflammatory factors (TNF-α, IL-1β and IL-6), and enhance anti-inflammatory factors (TGF-β1). The findings of this study suggested that biocompatible wound dressings with dual release of GS and PRP have great potential in the treatment of chronic and infected wounds.
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Affiliation(s)
- Linying Shi
- General Hospital of Southern Theatre Command of PLA, Guangzhou, China
| | - Fang Lin
- General Hospital of Southern Theatre Command of PLA, Guangzhou, China
| | - Mou Zhou
- General Hospital of Southern Theatre Command of PLA, Guangzhou, China
| | - Yanhui Li
- General Hospital of Southern Theatre Command of PLA, Guangzhou, China
| | - Wendan Li
- General Hospital of Southern Theatre Command of PLA, Guangzhou, China
| | - Guiqiu Shan
- Department of Clinical Laboratory, Hospital of Stomatology, Sun Yat-sen University, Guangzhou, China
| | - Yubing Xu
- General Hospital of Southern Theatre Command of PLA, Guangzhou, China
| | - Jingjing Xu
- General Hospital of Southern Theatre Command of PLA, Guangzhou, China
| | - Jing Yang
- Department of Clinical Laboratory, Hospital of Stomatology, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China.,Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, China
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48
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Michailidou Z, Gomez-Salazar M, Alexaki VI. Innate Immune Cells in the Adipose Tissue in Health and Metabolic Disease. J Innate Immun 2021; 14:4-30. [PMID: 33849008 DOI: 10.1159/000515117] [Citation(s) in RCA: 49] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2020] [Accepted: 02/09/2021] [Indexed: 11/19/2022] Open
Abstract
Metabolic disorders, such as obesity, type 2 diabetes mellitus, and nonalcoholic fatty liver disease, are characterized by chronic low-grade tissue and systemic inflammation. During obesity, the adipose tissue undergoes immunometabolic and functional transformation. Adipose tissue inflammation is driven by innate and adaptive immune cells and instigates insulin resistance. Here, we discuss the role of innate immune cells, that is, macrophages, neutrophils, eosinophils, natural killer cells, innate lymphoid type 2 cells, dendritic cells, and mast cells, in the adipose tissue in the healthy (lean) and diseased (obese) state and describe how their function is shaped by the obesogenic microenvironment, and humoral, paracrine, and cellular interactions. Moreover, we particularly outline the role of hypoxia as a central regulator in adipose tissue inflammation. Finally, we discuss the long-lasting effects of adipose tissue inflammation and its potential reversibility through drugs, caloric restriction, or exercise training.
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Affiliation(s)
- Zoi Michailidou
- Centre for Cardiovascular Sciences, Edinburgh University, Edinburgh, United Kingdom
| | - Mario Gomez-Salazar
- Centre for Cardiovascular Sciences, Edinburgh University, Edinburgh, United Kingdom
| | - Vasileia Ismini Alexaki
- Institute for Clinical Chemistry and Laboratory Medicine, Medical Faculty, Technische Universität Dresden, Dresden, Germany
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49
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Singh P, O'Toole TE, Conklin DJ, Hill BG, Haberzettl P. Endothelial progenitor cells as critical mediators of environmental air pollution-induced cardiovascular toxicity. Am J Physiol Heart Circ Physiol 2021; 320:H1440-H1455. [PMID: 33606580 PMCID: PMC8260385 DOI: 10.1152/ajpheart.00804.2020] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Revised: 01/26/2021] [Accepted: 02/14/2021] [Indexed: 01/15/2023]
Abstract
Environmental air pollution exposure is a leading cause of death worldwide, and with increasing industrialization and urbanization, its disease burden is expected to rise even further. The majority of air pollution exposure-associated deaths are linked to cardiovascular disease (CVD). Although ample research demonstrates a strong correlation between air pollution exposure and CVD risk, the mechanisms by which inhalation of polluted air affects cardiovascular health are not completely understood. Inhalation of environmental air pollution has been associated with endothelial dysfunction, which suggests that air pollution exposure impacts CVD health by inducing endothelial injury. Interestingly, recent studies demonstrate that air pollution exposure affects the number and function of endothelial progenitor cells (EPCs), subpopulations of bone marrow-derived proangiogenic cells that have been shown to play an essential role in maintaining cardiovascular health. In line with their beneficial function, chronically low levels of circulating EPCs and EPC dysfunction (e.g., in diabetic patients) have been associated with vascular dysfunction, poor cardiovascular health, and increases in the severity of cardiovascular outcomes. In contrast, treatments that improve EPC number and function (e.g., exercise) have been found to attenuate cardiovascular dysfunction. Considering the critical, nonredundant role of EPCs in maintaining vascular health, air pollution exposure-induced impairments in EPC number and function could lead to endothelial dysfunction, consequently increasing the risk for CVD. This review article covers novel aspects and new mechanistic insights of the adverse effects of air pollution exposure on cardiovascular health associated with changes in EPC number and function.
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Affiliation(s)
- Parul Singh
- Division of Environmental Medicine, Diabetes and Obesity Center, Department of Medicine, University of Louisville, Louisville, Kentucky
| | - Timothy E O'Toole
- Division of Environmental Medicine, Diabetes and Obesity Center, Department of Medicine, University of Louisville, Louisville, Kentucky
| | - Daniel J Conklin
- Division of Environmental Medicine, Diabetes and Obesity Center, Department of Medicine, University of Louisville, Louisville, Kentucky
| | - Bradford G Hill
- Division of Environmental Medicine, Diabetes and Obesity Center, Department of Medicine, University of Louisville, Louisville, Kentucky
| | - Petra Haberzettl
- Division of Environmental Medicine, Diabetes and Obesity Center, Department of Medicine, University of Louisville, Louisville, Kentucky
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50
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Hsu HH, Ko PL, Wu HM, Lin HC, Wang CK, Tung YC. Study 3D Endothelial Cell Network Formation under Various Oxygen Microenvironment and Hydrogel Composition Combinations Using Upside-Down Microfluidic Devices. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2006091. [PMID: 33480473 DOI: 10.1002/smll.202006091] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 11/13/2020] [Indexed: 06/12/2023]
Abstract
Formation of 3D networks is a crucial process for endothelial cells during development of primary blood vessels under both normal and pathological conditions. In order to investigate effects of oxygen microenvironment and matrix composition on the 3D network formation, an upside-down microfluidic cell culture device capable of generating oxygen gradients is developed in this paper. In cell experiments, network formation of human umbilical vein endothelial cells (HUVECs) within fibrinogen-based hydrogels with different concentrations of hyaluronic acid (HA) is systematically studied. In addition, five different oxygen microenvironments (uniform normoxia, 5%, and 1% O2 ; oxygen gradients under normoxia and 5% O2 ) are also applied for the cell culture. The generated oxygen gradients are characterized based on fluorescence lifetime measurements. The experimental results show increased 3D cell network length when the cells are cultured under the oxygen gradients within the hydrogels with the HA addition suggesting their roles in promoting network formation. Furthermore, the formed networks tend to align along the direction of the oxygen gradients indicating the presence of gradient-driven cellular response. The results demonstrate that the developed upside-down microfluidic device can provide an advanced platform to investigate 3D cell culture under the controlled oxygen microenvironments for various biomedical studies in vitro.
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Affiliation(s)
- Heng-Hua Hsu
- Research Center for Applied Sciences, Academia Sinica, Taipei, 11529, Taiwan
- Department of Engineering and System Science, National Tsing Hua University, Hsinchu, 30013, Taiwan
| | - Ping-Liang Ko
- Research Center for Applied Sciences, Academia Sinica, Taipei, 11529, Taiwan
- Department of Mechanical Engineering, National Taiwan University, Taipei, 10617, Taiwan
| | - Hsiao-Mei Wu
- Research Center for Applied Sciences, Academia Sinica, Taipei, 11529, Taiwan
| | - Hsi-Chieh Lin
- Research Center for Applied Sciences, Academia Sinica, Taipei, 11529, Taiwan
| | - Chien-Kai Wang
- Department of Mechanical Engineering, National Taiwan University, Taipei, 10617, Taiwan
| | - Yi-Chung Tung
- Research Center for Applied Sciences, Academia Sinica, Taipei, 11529, Taiwan
- College of Engineering, Chang Gung University, Taoyuan City, 33302, Taiwan
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