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Wen L, Qiu H, Li S, Huang Y, Tu Q, Lyu N, Mou X, Luo X, Zhou J, Chen Y, Wang C, Huang N, Xu J. Vascular stent with immobilized anti-inflammatory chemerin 15 peptides mitigates neointimal hyperplasia and accelerates vascular healing. Acta Biomater 2024; 179:371-384. [PMID: 38382829 DOI: 10.1016/j.actbio.2024.02.022] [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: 08/17/2023] [Revised: 02/03/2024] [Accepted: 02/13/2024] [Indexed: 02/23/2024]
Abstract
Endovascular stenting is a safer alternative to open surgery for use in treating cerebral arterial stenosis and significantly reduces the recurrence of ischemic stroke, but the widely used bare-metal stents (BMSs) often result in in-stent restenosis (ISR). Although evidence suggests that drug-eluting stents are superior to BMSs in the short term, their long-term performances remain unknown. Herein, we propose a potential vascular stent modified by immobilizing clickable chemerin 15 (C15) peptides on the stent surface to suppress coagulation and restenosis. Various characterization techniques and an animal model were used to evaluate the surface properties of the modified stents and their effects on endothelial injury, platelet adhesion, and inflammation. The C15-immobilized stent could prevent restenosis by minimizing endothelial injury, promoting physiological healing, restraining the platelet-leukocyte-related inflammatory response, and inhibiting vascular smooth muscle cell proliferation and migration. Furthermore, in vivo studies demonstrated that the C15-immobilized stent mitigated inflammation, suppressed neointimal hyperplasia, and accelerated endothelial restoration. The use of surface-modified, anti-inflammatory, endothelium-friendly stents may be of benefit to patients with arterial stenosis. STATEMENT OF SIGNIFICANCE: Endovascular stenting is increasingly used for cerebral arterial stenosis treatment, aiming to prevent and treat ischemic stroke. But an important accompanying complication is in-stent restenosis (ISR). Persistent inflammation has been established as a hallmark of ISR and anti-inflammation strategies in stent modification proved effective. Chemerin 15, an inflammatory resolution mediator with 15-aa peptide, was active at picomolar through cell surface receptor, no need to permeate cell membrane and involved in resolution of inflammation by inhibiting inflammatory cells adhesion, modulating macrophage polarization into protective phenotype, and reducing inflammatory factors release. The implications of this study are that C15 immobilized stent favors inflammation resolution and rapid re-endothelialization, and exhibits an inhibitory role of restenosis. As such, it helps the decreased incidence of ISR.
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Affiliation(s)
- Lan Wen
- Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu 610065, China
| | - Hua Qiu
- Stomatologic Hospital and College, Key Laboratory of Oral Diseases Research of Anhui Province, Anhui Medical University, Hefei, Anhui 230032, China
| | - Shuang Li
- Department of Neurology, The Affiliated Hospital of Southwest Medical University, Luzhou 646000, China
| | - Yan Huang
- Department of Neurology, The Affiliated Hospital of Southwest Medical University, Luzhou 646000, China
| | - Qiufen Tu
- Key Laboratory of Advanced Technology of Materials of Education Ministry, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China
| | - Nan Lyu
- Key Laboratory of Advanced Technology of Materials of Education Ministry, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China
| | - Xiaohui Mou
- Key Laboratory of Advanced Technology of Materials of Education Ministry, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China
| | - Xia Luo
- Department of Neurology, The Affiliated Hospital of Southwest Medical University, Luzhou 646000, China
| | - Jingyu Zhou
- Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu 610065, China
| | - Yin Chen
- School of Biomedical Engineering, Guangzhou Medical University, Guangzhou 511436, China
| | - Chaohua Wang
- Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu 610065, China.
| | - Nan Huang
- Key Laboratory of Advanced Technology of Materials of Education Ministry, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China.
| | - Jianguo Xu
- Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu 610065, China.
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Fishbein I, Inamdar VV, Alferiev IS, Bratinov G, Zviman MM, Yekhilevsky A, Nagaswami C, Gardiner KL, Levy RJ, Stachelek SJ. Hypercholesterolemia exacerbates in-stent restenosis in rabbits: Studies of the mitigating effect of stent surface modification with a CD47-derived peptide. Atherosclerosis 2024; 390:117432. [PMID: 38241977 PMCID: PMC10939830 DOI: 10.1016/j.atherosclerosis.2023.117432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 11/07/2023] [Accepted: 12/20/2023] [Indexed: 01/21/2024]
Abstract
BACKGROUND AND AIMS Hypercholesterolemia (HC) has previously been shown to augment the restenotic response in animal models and humans. However, the mechanistic aspects of in-stent restenosis (ISR) on a hypercholesterolemic background, including potential augmentation of systemic and local inflammation precipitated by HC, are not completely understood. CD47 is a transmembrane protein known to abort crucial inflammatory pathways. Our studies have examined the interrelation between HC, inflammation, and ISR and investigated the therapeutic potential of stents coated with a CD47-derived peptide (pepCD47) in the hypercholesterolemic rabbit model. METHODS PepCD47 was immobilized on metal foils and stents using polybisphosphonate coordination chemistry and pyridyldithio/thiol conjugation. Cytokine expression in buffy coat-derived cells cultured over bare metal (BM) and pepCD47-derivatized foils demonstrated an M2/M1 macrophage shift with pepCD47 coating. HC and normocholesterolemic (NC) rabbit cohorts underwent bilateral implantation of BM and pepCD47 stents (HC) or BM stents only (NC) in the iliac location. RESULTS A 40 % inhibition of cell attachment to pepCD47-modified compared to BM surfaces was observed. HC increased neointimal growth at 4 weeks post BM stenting. These untoward outcomes were mitigated in hypercholesterolemic rabbits treated with pepCD47-derivatized stents. Compared to NC animals, inflammatory cytokine immunopositivity and macrophage infiltration of peri-strut areas increased in HC animals and were attenuated in HC rabbits treated with pepCD47 stents. CONCLUSIONS Augmented inflammatory responses underlie severe ISR morphology in hypercholesterolemic rabbits. Blockage of initial platelet and leukocyte attachment to stent struts through CD47 functionalization of stents mitigates the pro-restenotic effects of hypercholesterolemia.
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Affiliation(s)
- Ilia Fishbein
- The Children's Hospital of Philadelphia, Philadelphia, PA, USA; University of Pennsylvania, Perelman School of Medicine, Philadelphia, PA, USA.
| | - Vaishali V Inamdar
- The Children's Hospital of Philadelphia, Philadelphia, PA, USA; Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Ivan S Alferiev
- The Children's Hospital of Philadelphia, Philadelphia, PA, USA; University of Pennsylvania, Perelman School of Medicine, Philadelphia, PA, USA
| | - George Bratinov
- The Children's Hospital of Philadelphia, Philadelphia, PA, USA; University of Pennsylvania, Perelman School of Medicine, Philadelphia, PA, USA
| | - Menekhem M Zviman
- The Children's Hospital of Philadelphia, Philadelphia, PA, USA; University of Pennsylvania, Perelman School of Medicine, Philadelphia, PA, USA
| | | | | | - Kristin L Gardiner
- University of Pennsylvania, Perelman School of Medicine, Philadelphia, PA, USA
| | - Robert J Levy
- The Children's Hospital of Philadelphia, Philadelphia, PA, USA; University of Pennsylvania, Perelman School of Medicine, Philadelphia, PA, USA
| | - Stanley J Stachelek
- The Children's Hospital of Philadelphia, Philadelphia, PA, USA; University of Pennsylvania, Perelman School of Medicine, Philadelphia, PA, USA
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3
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Isenberg JS, Montero E. Tolerating CD47. Clin Transl Med 2024; 14:e1584. [PMID: 38362603 PMCID: PMC10870051 DOI: 10.1002/ctm2.1584] [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: 11/19/2023] [Revised: 01/22/2024] [Accepted: 01/30/2024] [Indexed: 02/17/2024] Open
Abstract
Cluster of differentiation 47 (CD47) occupies the outer membrane of human cells, where it binds to soluble and cell surface receptors on the same and other cells, sculpting their topography and resulting in a pleiotropic receptor-multiligand interaction network. It is a focus of drug development to temper and accentuate CD47-driven immune cell liaisons, although consideration of on-target CD47 effects remain neglected. And yet, a late clinical trial of a CD47-blocking antibody was discontinued, existent trials were restrained, and development of CD47-targeting agents halted by some pharmaceutical companies. At this point, if CD47 can be exploited for clinical advantage remains to be determined. Herein an airing is made of the seemingly conflicting actions of CD47 that reflect its position as a junction connecting receptors and signalling pathways that impact numerous human cell types. Prospects of CD47 boosting and blocking are considered along with potential therapeutic implications for autoimmune diseases and cancer.
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Affiliation(s)
- Jeffrey S. Isenberg
- Department of Diabetes Complications & MetabolismArthur Riggs Diabetes & Metabolism Research InstituteCity of Hope National Medical CenterDuarteCaliforniaUSA
| | - Enrique Montero
- Department of Molecular & Cellular EndocrinologyArthur Riggs Diabetes & Metabolism Research InstituteCity of Hope National Medical CenterDuarteCaliforniaUSA
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Chen Y, Luo Z, Meng W, Liu K, Chen Q, Cai Y, Ding Z, Huang C, Zhou Z, Jiang M, Zhou L. Decoding the "Fingerprint" of Implant Materials: Insights into the Foreign Body Reaction. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2310325. [PMID: 38191783 DOI: 10.1002/smll.202310325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2023] [Revised: 12/12/2023] [Indexed: 01/10/2024]
Abstract
Foreign body reaction (FBR) is a prevalent yet often overlooked pathological phenomenon, particularly within the field of biomedical implantation. The presence of FBR poses a heavy burden on both the medical and socioeconomic systems. This review seeks to elucidate the protein "fingerprint" of implant materials, which is generated by the physiochemical properties of the implant materials themselves. In this review, the activity of macrophages, the formation of foreign body giant cells (FBGCs), and the development of fibrosis capsules in the context of FBR are introduced. Additionally, the relationship between various implant materials and FBR is elucidated in detail, as is an overview of the existing approaches and technologies employed to alleviate FBR. Finally, the significance of implant components (metallic materials and non-metallic materials), surface CHEMISTRY (charge and wettability), and physical characteristics (topography, roughness, and stiffness) in establishing the protein "fingerprint" of implant materials is also well documented. In conclusion, this review aims to emphasize the importance of FBR on implant materials and provides the current perspectives and approaches in developing implant materials with anti-FBR properties.
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Affiliation(s)
- Yangmengfan Chen
- Orthopedic Research Institution, Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, 610041, China
- Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Zeyu Luo
- Orthopedic Research Institution, Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, 610041, China
- Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Weikun Meng
- Orthopedic Research Institution, Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, 610041, China
- Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Kai Liu
- Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Qiqing Chen
- Department of Ultrasound, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou, 570311, China
| | - Yongrui Cai
- Orthopedic Research Institution, Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, 610041, China
- Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Zichuan Ding
- Orthopedic Research Institution, Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, 610041, China
- Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Chao Huang
- Orthopedic Research Institution, Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, 610041, China
- Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Zongke Zhou
- Orthopedic Research Institution, Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, 610041, China
- Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Meng Jiang
- Emergency and Trauma Center, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China
| | - Liqiang Zhou
- MOE Frontiers Science Center for Precision Oncology, Faculty of Health Sciences, University of Macau, Macau SAR, 999078, China
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Wang C, Feng Y, Patel D, Xie H, Lv Y, Zhao H. The role of CD47 in non-neoplastic diseases. Heliyon 2023; 9:e22905. [PMID: 38125492 PMCID: PMC10731077 DOI: 10.1016/j.heliyon.2023.e22905] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 11/15/2023] [Accepted: 11/22/2023] [Indexed: 12/23/2023] Open
Abstract
CD47 is a 50 kDa five-spanning membrane receptor that plays a crucial role in multiple cellular processes, including myeloid cell activation, neutrophils transmigration, vascular remodeling, leukocyte adhesion and trans-endothelial migration. Recent studies have revealed that CD47 is a highly expressed anti-phagocytic signal in several types of cancer, and therefore, blocking of CD47 has shown an effective therapeutic potential in cancer immunotherapy. In addition, CD47 has been found to be involved in a complex interplay with microglia and other types of cells, and increasing evidence indicates that CD47 can be targeted as part of immune modulatory strategies for non-neoplastic diseases as well. In this review, we focus on CD47 and its role in non-neoplastic diseases, including neurological disorders, atherosclerosis and autoimmune diseases. In addition, we discuss the major challenges and potential remedies associated with CD47-SIRPα-based immunotherapies.
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Affiliation(s)
- Chao Wang
- Department of Neurosurgery, the Affiliated Hospital of Qingdao University, No. 16 Jiangsu Road, Qingdao, Shandong, 266005, China
| | - Ying Feng
- Department of Emergency, the Affiliated Hospital of Qingdao University, No. 16 Jiangsu Road, Qingdao, Shandong, 266005, China
| | - Deepali Patel
- School of Medicine, Qingdao University, No. 308 Ningxia Road, Qingdao, Shandong, 266071, China
| | - Hongwei Xie
- Department of Neurosurgery, the Affiliated Hospital of Qingdao University, No. 16 Jiangsu Road, Qingdao, Shandong, 266005, China
| | - Yaqing Lv
- Department of Outpatient, the Affiliated Hospital of Qingdao University, No. 16 Jiangsu Road, Qingdao, Shandong, 266005, China
| | - Hai Zhao
- Department of Neurosurgery, the Affiliated Hospital of Qingdao University, No. 16 Jiangsu Road, Qingdao, Shandong, 266005, China
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6
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Zhang C, Cha R, Wang C, Chen X, Li Z, Xie Q, Jia L, Sun Y, Hu Z, Zhang L, Zhou F, Zhang Y, Jiang X. Red blood cell membrane-functionalized Nanofibrous tubes for small-diameter vascular grafts. Biomaterials 2023; 297:122124. [PMID: 37087981 DOI: 10.1016/j.biomaterials.2023.122124] [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: 09/07/2022] [Revised: 03/23/2023] [Accepted: 04/08/2023] [Indexed: 04/25/2023]
Abstract
The off-the-shelf small-diameter vascular grafts (SDVGs) have inferior clinical efficacy. Red blood cell membrane (Rm) has easy availability and multiple bioactive components (such as phospholipids, proteins, and glycoproteins), which can improve the clinic's availability and patency of SDVGs. Here we developed a facile approach to preparing an Rm-functionalized poly-ε-caprolactone/poly-d-lysine (Rm@PCL/PDL) tube by co-incubation and single-step rolling. The integrity, stability, and bioactivity of Rm on Rm@PCL/PDL were evaluated. The revascularization of Rm@PCL/PDL tubes was studied by implantation in the carotid artery of rabbits. Rm@PCL/PDL can be quickly prepared and showed excellent bioactivity with good hemocompatibility and great anti-inflammatory. Rm@PCL/PDL tubes as the substitute for the carotid artery of rabbits had good patency and quick remodeling within 21 days. Rm, as a "self" biomaterial with high biosafety, provides a new and facile approach to developing personalized or universal SDVGs for the clinic, which is of great significance in cardiovascular regenerative medicine and organ chip.
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Affiliation(s)
- Chunliang Zhang
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences (Beijing), No. 29 Xueyuan Road, Haidian District, Beijing, 100083, PR China; CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, National Center for NanoScience and Technology, No. 11 Zhongguancun Beiyitiao, Haidian District, Beijing, 100190, PR China
| | - Ruitao Cha
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, National Center for NanoScience and Technology, No. 11 Zhongguancun Beiyitiao, Haidian District, Beijing, 100190, PR China.
| | - Chunyuan Wang
- Fuwai Hospital, State Key Laboratory of Cardiovascular Disease, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, No. 167 Beilishi Road, Xicheng District, Beijing, 100037, PR China
| | - Xingming Chen
- PLA Strategic Support Force Characteristic Medical Center, No. 9 Anxiang Beili, Chaoyang District, Beijing, 100101, PR China
| | - Zulan Li
- PLA Strategic Support Force Characteristic Medical Center, No. 9 Anxiang Beili, Chaoyang District, Beijing, 100101, PR China
| | - Qian Xie
- Division of Nephrology, Peking University Third Hospital, No. 49 Huayuan Road North, Haidian District, Beijing, 100191, PR China
| | - Liujun Jia
- Fuwai Hospital, State Key Laboratory of Cardiovascular Disease, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, No. 167 Beilishi Road, Xicheng District, Beijing, 100037, PR China
| | - Yang Sun
- Fuwai Hospital, State Key Laboratory of Cardiovascular Disease, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, No. 167 Beilishi Road, Xicheng District, Beijing, 100037, PR China
| | - Zhan Hu
- Fuwai Hospital, State Key Laboratory of Cardiovascular Disease, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, No. 167 Beilishi Road, Xicheng District, Beijing, 100037, PR China
| | - Lin Zhang
- Department of Adult Cardiac Surgery, Faculty of Cardiovascular Disease, The Sixth Medical Center of the General Hospital of the People's Liberation Army of China, No. 28 Fuxing Road, Haidian District, Beijing, 100853, PR China.
| | - Fengshan Zhou
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences (Beijing), No. 29 Xueyuan Road, Haidian District, Beijing, 100083, PR China.
| | - Yan Zhang
- Fuwai Hospital, State Key Laboratory of Cardiovascular Disease, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, No. 167 Beilishi Road, Xicheng District, Beijing, 100037, PR China.
| | - Xingyu Jiang
- Shenzhen Key Laboratory of Smart Healthcare Engineering, Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, No. 1088 Xueyuan Road, Nanshan District, Shenzhen, Guangdong, 518055, PR China.
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7
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Govatati S, Pichavaram P, Kumar R, Rao GN. Blockade of CD47 function attenuates restenosis by promoting smooth muscle cell efferocytosis and inhibiting their migration and proliferation. J Biol Chem 2023; 299:104594. [PMID: 36898577 PMCID: PMC10124914 DOI: 10.1016/j.jbc.2023.104594] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Revised: 03/04/2023] [Accepted: 03/06/2023] [Indexed: 03/10/2023] Open
Abstract
Cluster of differentiation 47 (CD47) plays an important role in the pathophysiology of various diseases including atherosclerosis, but its role in neointimal hyperplasia which contributes to restenosis, has not been studied. Using molecular approaches in combination with a mouse vascular endothelial denudation model, we studied the role of CD47 in injury-induced neointimal hyperplasia. We determined that thrombin induced CD47 expression both in human and mouse aortic smooth muscle cells (HASMCs and MASMCs). In exploring the mechanisms, we found that the protease-activated receptor 1 (PAR1)-Gα protein q/11 (Gαq/11)-phospholipase Cβ3 (PLCβ3)-nuclear factor of activated T cells c1 (NFATc1) signaling axis regulates thrombin-induced CD47 expression in HASMCs. Depletion of CD47 levels using its siRNA or interference of its function by its blocking antibody (bAb) blunted thrombin-induced migration and proliferation of HASMCs and MASMCs. In addition, we found that thrombin-induced HASMC migration requires CD47 interaction with integrin β3. On the other hand, thrombin-induced HASMC proliferation was dependent on CD47's role in nuclear export and degradation of CDK-interacting protein 1 (p21Cip1). In addition, suppression of CD47 function by its bAb rescued HASMC efferocytosis from inhibition by thrombin. We also found that vascular injury induces CD47 expression in intimal SMCs and that inhibition of CD47 function by its bAb, while alleviating injury-induced inhibition of SMC efferocytosis, attenuated SMC migration and proliferation resulting in reduced neointima formation. Thus, these findings reveal a pathological role for CD47 in neointimal hyperplasia.
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Affiliation(s)
- Suresh Govatati
- Department of Physiology, University of Tennessee Health Science Center, Memphis, TN 38163, USA
| | - Prahalathan Pichavaram
- Department of Physiology, University of Tennessee Health Science Center, Memphis, TN 38163, USA
| | - Raj Kumar
- Department of Physiology, University of Tennessee Health Science Center, Memphis, TN 38163, USA
| | - Gadiparthi N Rao
- Department of Physiology, University of Tennessee Health Science Center, Memphis, TN 38163, USA.
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Li L, Liu S, Tan J, Wei L, Wu D, Gao S, Weng Y, Chen J. Recent advance in treatment of atherosclerosis: Key targets and plaque-positioned delivery strategies. J Tissue Eng 2022; 13:20417314221088509. [PMID: 35356091 PMCID: PMC8958685 DOI: 10.1177/20417314221088509] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Atherosclerosis, a chronic inflammatory disease of vascular wall, is a progressive pathophysiological process with lipids oxidation/depositing initiation and innate/adaptive immune responses. The coordination of multi systems covering oxidative stress, dysfunctional endothelium, diseased lipid uptake, cell apoptosis, thrombotic and pro-inflammatory responding as well as switched SMCs contributes to plaque growth. In this circumstance, inevitably, targeting these processes is considered to be effective for treating atherosclerosis. Arriving, retention and working of payload candidates mediated by targets in lesion direct ultimate therapeutic outcomes. Accumulating a series of scientific studies and clinical practice in the past decades, lesion homing delivery strategies including stent/balloon/nanoparticle-based transportation worked as the potent promotor to ensure a therapeutic effect. The objective of this review is to achieve a very brief summary about the effective therapeutic methods cooperating specifical targets and positioning-delivery strategies in atherosclerosis for better outcomes.
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Affiliation(s)
- Li Li
- Key Laboratory of Advanced Technology of Materials, Ministry of Education, Southwest Jiaotong University, Chengdu, PR China
| | - Sainan Liu
- Key Laboratory of Advanced Technology of Materials, Ministry of Education, Southwest Jiaotong University, Chengdu, PR China
| | - Jianying Tan
- Key Laboratory of Advanced Technology of Materials, Ministry of Education, Southwest Jiaotong University, Chengdu, PR China
| | - Lai Wei
- Key Laboratory of Advanced Technology of Materials, Ministry of Education, Southwest Jiaotong University, Chengdu, PR China
| | - Dimeng Wu
- Chengdu Daxan Innovative Medical Tech. Co., Ltd., Chengdu, PR China
| | - Shuai Gao
- Chengdu Daxan Innovative Medical Tech. Co., Ltd., Chengdu, PR China
| | - Yajun Weng
- Key Laboratory of Advanced Technology of Materials, Ministry of Education, Southwest Jiaotong University, Chengdu, PR China
| | - Junying Chen
- Key Laboratory of Advanced Technology of Materials, Ministry of Education, Southwest Jiaotong University, Chengdu, PR China
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9
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Capuani S, Malgir G, Chua CYX, Grattoni A. Advanced Strategies to Thwart Foreign Body Response to Implantable Devices. Bioeng Transl Med 2022; 7:e10300. [PMID: 36176611 PMCID: PMC9472022 DOI: 10.1002/btm2.10300] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Revised: 01/21/2022] [Accepted: 01/24/2022] [Indexed: 11/10/2022] Open
Abstract
Mitigating the foreign body response (FBR) to implantable medical devices (IMDs) is critical for successful long‐term clinical deployment. The FBR is an inevitable immunological reaction to IMDs, resulting in inflammation and subsequent fibrotic encapsulation. Excessive fibrosis may impair IMDs function, eventually necessitating retrieval or replacement for continued therapy. Therefore, understanding the implant design parameters and their degree of influence on FBR is pivotal to effective and long lasting IMDs. This review gives an overview of FBR as well as anti‐FBR strategies. Furthermore, we highlight recent advances in biomimetic approaches to resist FBR, focusing on their characteristics and potential biomedical applications.
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Affiliation(s)
- Simone Capuani
- Department of Nanomedicine Houston Methodist Research Institute Houston TX USA
- University of Chinese Academy of Science (UCAS) 19 Yuquan Road Beijing China
| | - Gulsah Malgir
- Department of Nanomedicine Houston Methodist Research Institute Houston TX USA
- Department of Biomedical Engineering University of Houston Houston TX USA
| | | | - Alessandro Grattoni
- Department of Nanomedicine Houston Methodist Research Institute Houston TX USA
- Department of Surgery Houston Methodist Hospital Houston TX USA
- Department of Radiation Oncology Houston Methodist Hospital Houston TX USA
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Chen L, Zhou Z, Hu C, Maitz MF, Yang L, Luo R, Wang Y. Platelet Membrane-Coated Nanocarriers Targeting Plaques to Deliver Anti-CD47 Antibody for Atherosclerotic Therapy. RESEARCH (WASHINGTON, D.C.) 2022; 2022:9845459. [PMID: 35118420 PMCID: PMC8791388 DOI: 10.34133/2022/9845459] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Accepted: 11/24/2021] [Indexed: 12/22/2022]
Abstract
Atherosclerosis, the principle cause of cardiovascular disease (CVD) worldwide, is mainly characterized by the pathological accumulation of diseased vascular cells and apoptotic cellular debris. Atherogenesis is associated with the upregulation of CD47, a key antiphagocytic molecule that is known to render malignant cells resistant to programmed cell removal, or "efferocytosis." Here, we have developed platelet membrane-coated mesoporous silicon nanoparticles (PMSN) as a drug delivery system to target atherosclerotic plaques with the delivery of an anti-CD47 antibody. Briefly, the cell membrane coat prolonged the circulation of the particles by evading the immune recognition and provided an affinity to plaques and atherosclerotic sites. The anti-CD47 antibody then normalized the clearance of diseased vascular tissue and further ameliorated atherosclerosis by blocking CD47. In an atherosclerosis model established in ApoE-/- mice, PMSN encapsulating anti-CD47 antibody delivery significantly promoted the efferocytosis of necrotic cells in plaques. Clearing the necrotic cells greatly reduced the atherosclerotic plaque area and stabilized the plaques reducing the risk of plaque rupture and advanced thrombosis. Overall, this study demonstrated the therapeutic advantages of PMSN encapsulating anti-CD47 antibodies for atherosclerosis therapy, which holds considerable promise as a new targeted drug delivery platform for efficient therapy of atherosclerosis.
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Affiliation(s)
- Liang Chen
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610065, China
| | - Zhongyi Zhou
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610065, China
| | - Cheng Hu
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610065, China
| | - Manfred F. Maitz
- Max Bergmann Center of Biomaterials, Leibniz Institute of Polymer Research Dresden, Dresden 01069, Germany
- Key Lab. for Advanced Technologies of Materials, Ministry of Education, School of Material Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China
| | - Li Yang
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610065, China
| | - Rifang Luo
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610065, China
| | - Yunbing Wang
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610065, China
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11
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Cao G, Xuan X, Zhang R, Hu J, Dong H. Gene Therapy for Cardiovascular Disease: Basic Research and Clinical Prospects. Front Cardiovasc Med 2021; 8:760140. [PMID: 34805315 PMCID: PMC8602679 DOI: 10.3389/fcvm.2021.760140] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Accepted: 10/11/2021] [Indexed: 12/16/2022] Open
Abstract
In recent years, the vital role of genetic factors in human diseases have been widely recognized by scholars with the deepening of life science research, accompanied by the rapid development of gene-editing technology. In early years, scientists used homologous recombination technology to establish gene knock-out and gene knock-in animal models, and then appeared the second-generation gene-editing technology zinc-finger nucleases (ZFNs) and transcription activator-like effector nucleases (TALENs) that relied on nucleic acid binding proteins and endonucleases and the third-generation gene-editing technology that functioned through protein-nucleic acids complexes-CRISPR/Cas9 system. This holds another promise for refractory diseases and genetic diseases. Cardiovascular disease (CVD) has always been the focus of clinical and basic research because of its high incidence and high disability rate, which seriously affects the long-term survival and quality of life of patients. Because some inherited cardiovascular diseases do not respond well to drug and surgical treatment, researchers are trying to use rapidly developing genetic techniques to develop initial attempts. However, significant obstacles to clinical application of gene therapy still exists, such as insufficient understanding of the nature of cardiovascular disease, limitations of genetic technology, or ethical concerns. This review mainly introduces the types and mechanisms of gene-editing techniques, ethical concerns of gene therapy, the application of gene therapy in atherosclerosis and inheritable cardiovascular diseases, in-stent restenosis, and delivering systems.
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Affiliation(s)
- Genmao Cao
- Department of Vascular Surgery, The Second Hospital of Shanxi Medical University, Taiyuan, China
| | - Xuezhen Xuan
- Department of Vascular Surgery, The Second Hospital of Shanxi Medical University, Taiyuan, China
| | - Ruijing Zhang
- Department of Nephrology, The Second Hospital of Shanxi Medical University, Taiyuan, China
| | - Jie Hu
- Department of Vascular Surgery, The Second Hospital of Shanxi Medical University, Taiyuan, China
| | - Honglin Dong
- Department of Vascular Surgery, The Second Hospital of Shanxi Medical University, Taiyuan, China
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12
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Yang L, Wu H, Lu L, He Q, Xi B, Yu H, Luo R, Wang Y, Zhang X. A tailored extracellular matrix (ECM) - Mimetic coating for cardiovascular stents by stepwise assembly of hyaluronic acid and recombinant human type III collagen. Biomaterials 2021; 276:121055. [PMID: 34371447 DOI: 10.1016/j.biomaterials.2021.121055] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Revised: 07/18/2021] [Accepted: 07/28/2021] [Indexed: 12/14/2022]
Abstract
Collagen, a central component of the extracellular matrix (ECM), has been widely applied in tissue engineering, among others, for wound healing or bone and nerve regeneration. However, the inherent thrombogenic properties of collagen hinder the application in blood-contacting devices. Herein, a brand-new recombinant human type III collagen (hCOLIII) was explored that does not present binding sites for platelets while retaining the affinity for endothelial cells. The hCOLIII together with hyaluronic acid (HA) were deposited on the substrates via layer-by-layer assembly to form an ECM-mimetic multilayer coating. In vitro platelet adhesion and ex vivo blood circulation tests demonstrated prominent thromboprotective properties for the hCOLIII-based ECM-mimetic coating. In addition, the coating effectively guided the vascular cell fate by supporting the proliferation of endothelial cells and inhibiting the proliferation of smooth muscle cells by differentiating them to a more contractile phenotype. A polylactic acid (PLA) stent coated with hCOLIII-based ECM-mimetic coating was implanted in the abdominal aorta of rabbits to investigate the healing of the neointima. The enhanced endothelialization, suppressed inflammatory response, inhibition of excessive neointimal hyperplasia, and the superior thromboprotection strongly indicated the prospect of the hCOLIII-based ECM-mimetic coating as a tailored blood-contacting material for cardiovascular stents.
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Affiliation(s)
- Li Yang
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, 610064, China
| | - Haoshuang Wu
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, 610064, China
| | - Lu Lu
- Key Laboratory of Medical Molecular Virology (MOE/NHC/CAMS), School of Basic Medical Sciences and Shanghai Public Health Clinical Center, Fudan-Jinbo Joint Research Center, Fudan University, Shanghai, 200302, China
| | - Qing He
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, 610064, China
| | - Boting Xi
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, 610064, China
| | - Hongchi Yu
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, 610064, China
| | - Rifang Luo
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, 610064, China.
| | - Yunbing Wang
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, 610064, China.
| | - Xingdong Zhang
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, 610064, China
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13
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Crawford L, Wyatt M, Bryers J, Ratner B. Biocompatibility Evolves: Phenomenology to Toxicology to Regeneration. Adv Healthc Mater 2021; 10:e2002153. [PMID: 33829678 PMCID: PMC8221530 DOI: 10.1002/adhm.202002153] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Revised: 02/26/2021] [Indexed: 12/20/2022]
Abstract
The word "biocompatibility," is inconsistent with the observations of healing for so-called biocompatible biomaterials. The vast majority of the millions of medical implants in humans today, presumably "biocompatible," are walled off by a dense, avascular, crosslinked collagen capsule, hardly suggestive of life or compatibility. In contrast, one is now seeing examples of implant biomaterials that lead to a vascularized reconstruction of localized tissue, a biological reaction different from traditional biocompatible materials that generate a foreign body capsule. Both the encapsulated biomaterials and the reconstructive biomaterials qualify as "biocompatible" by present day measurements of biocompatibility. Yet, this new generation of materials would seem to heal "compatibly" with the living organism, where older biomaterials are isolated from the living organism by the dense capsule. This review/perspective article will explore this biocompatibility etymological conundrum by reviewing the history of the concepts around biocompatibility, today's standard methods for assessing biocompatibility, a contemporary view of the foreign body reaction and finally, a compendium of new biomaterials that heal without the foreign body capsule. A new definition of biocompatibility is offered here to address advances in biomaterials design leading to biomaterials that heal into the body in a facile manner.
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Affiliation(s)
- Lars Crawford
- Department of Bioengineering, University of Washington, Seattle, WA, 98195, USA
| | - Meghan Wyatt
- Department of Bioengineering, University of Washington, Seattle, WA, 98195, USA
| | - James Bryers
- Department of Bioengineering, University of Washington, Seattle, WA, 98195, USA
| | - Buddy Ratner
- Department of Bioengineering, University of Washington, Seattle, WA, 98195, USA
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14
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Qiu H, Tu Q, Gao P, Li X, Maitz MF, Xiong K, Huang N, Yang Z. Phenolic-amine chemistry mediated synergistic modification with polyphenols and thrombin inhibitor for combating the thrombosis and inflammation of cardiovascular stents. Biomaterials 2020; 269:120626. [PMID: 33418199 DOI: 10.1016/j.biomaterials.2020.120626] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Revised: 12/16/2020] [Accepted: 12/17/2020] [Indexed: 02/07/2023]
Abstract
Antithrombogenicity, anti-inflammation, and rapid re-endothelialization are central requirements for the long-term success of cardiovascular stents. In this work, a plant-inspired phenolic-amine chemistry strategy was developed to combine the biological functions of a plant polyphenol, tannic acid (TA), and the thrombin inhibitor bivalirudin (BVLD) for tailoring the desired multiple surface functionalities of cardiovascular stents. To realize the synergistic modification of TA and BVLD on a stent surface, an amine-bearing coating of plasma polymerized allylamine was firstly prepared on the stent surface, followed by the sequential conjugation of TA and BVLD in alkaline solution based on phenolic-amine chemistry (i.e., Michael addition reaction). TA and BVLD were successfully immobilized onto the stent surface with considerable amounts of 330 ± 12 and 930 ± 80 ng/cm2, respectively. The abundant phenolic hydroxyl groups of TA imparted the stent with ability to suppress inflammation. Meanwhile, BVLD provided an antithrombogenic and endothelial-friendly microenvironment. As a result, the combined functions of the TA and BVLD facilitate the rapid stent re-endothelialization for reduced intimal hyperplasia in vivo, and may be a promising strategy to address the clinical complications associated with restenosis and late stent thrombosis.
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Affiliation(s)
- Hua Qiu
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, 610031, China
| | - Qiufen Tu
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, 610031, China
| | - Peng Gao
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, 610031, China
| | - Xiangyang Li
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, 610031, China
| | - Manfred F Maitz
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, 610031, China; Max Bergmann Center of Biomaterials, Leibniz Institute of Polymer Research Dresden, Dresden, 01069, Germany
| | - Kaiqin Xiong
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, 610031, China.
| | - Nan Huang
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, 610031, China
| | - Zhilu Yang
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, 610031, China.
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15
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Zhang J, Tan SB, Guo ZG. CD47 decline in pancreatic islet cells promotes macrophage-mediated phagocytosis in type I diabetes. World J Diabetes 2020; 11:239-251. [PMID: 32547698 PMCID: PMC7284019 DOI: 10.4239/wjd.v11.i6.239] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Revised: 03/30/2020] [Accepted: 04/19/2020] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Type I diabetes (T1D) is characterized by insulin loss caused by inflammatory cells that excessively infiltrate and destroy the pancreas, resulting in dysregulation of tissue homeostasis, mechanobiological properties, and the immune response. The streptozotocin (STZ)-induced mouse model exhibits multiple features of human T1D and enables mechanistic analysis of disease progression. However, the relationship between the mechanochemical signaling regulation of STZ-induced T1D and macrophage migration and phagocytosis is unclear.
AIM To study the mechanochemical regulation of STZ-induced macrophage response on pancreatic beta islet cells to gain a clearer understanding of T1D.
METHODS We performed experiments using different methods. We stimulated isolated pancreatic beta islet cells with STZ and then tested the macrophage migration and phagocytosis.
RESULTS In this study, we discovered that the integrin-associated surface factor CD47 played a critical role in immune defense in the STZ-induced T1D model by preventing pancreatic beta islet inflammation. In comparison with healthy mice, STZ-treated mice showed decreased levels of CD47 on islet cells and reduced interaction of CD47 with signal regulatory protein α (SIRPα), which negatively regulates macrophage-mediated phagocytosis. This resulted in weakened islet cell immune defense and promoted macrophage migration and phagocytosis of target inflammatory cells. Moreover, lipopolysaccharide-activated human acute monocytic leukemia THP-1 cells also exhibited enhanced phagocytosis in the STZ-treated islets, and the aggressive attack of the inflammatory islets correlated with impaired CD47-SIRPα interactions. In addition, CD47 overexpression rescued the pre-labeled targeted cells.
CONCLUSION This study indicates that CD47 deficiency promotes the migration and phagocytosis of macrophages and provides mechanistic insights into T1D by associating the interactions between membrane structures and inflammatory disease progression.
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Affiliation(s)
- Jing Zhang
- Jiangsu Key Laboratory for Molecular and Medical Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing 210097, Jiangsu Province, China
- Laboratory of Molecular Gerontology, National Institute on Aging, National Institutes of Health, Baltimore, MD 21224, United States
| | - Su-Bee Tan
- National Key Laboratory for Biochemistry, College of Life Sciences, Nanjing University, Nanjing 210093, Jiangsu Province, China
| | - Zhi-Gang Guo
- Jiangsu Key Laboratory for Molecular and Medical Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing 210097, Jiangsu Province, China
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16
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Zhang Q, Stachelek SJ, Inamdar VV, Alferiev I, Nagaswami C, Weisel JW, Hwang JH, Meyerhoff ME. Studies of combined NO-eluting/CD47-modified polyurethane surfaces for synergistic enhancement of biocompatibility. Colloids Surf B Biointerfaces 2020; 192:111060. [PMID: 32450498 PMCID: PMC7572543 DOI: 10.1016/j.colsurfb.2020.111060] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2019] [Revised: 03/15/2020] [Accepted: 04/13/2020] [Indexed: 12/22/2022]
Abstract
The blood compatibility of various intravascular (IV) devices (e.g., catheters, sensors, etc.) is compromised by activation of platelets that can cause thrombus formation and device failure. Such devices also carry a high risk of microbial infection. Recently, nitric oxide (NO) releasing polymers/devices have been proposed to reduce these clinical problems. CD47, a ubiquitously expressed transmembrane protein with proven anti-inflammation/anti-platelet properties when immobilized on polymeric surfaces, is a good candidate to complement NO release in both effectiveness and longevity. In this work, we successfully appended CD47 peptides (pepCD47) to the surface of biomedical grade polyurethane (PU) copolymers. SIRPα binding and THP-1 cell attachment experiments strongly suggested that the pepCD47 retains its biological properties when bound to PU films. In spite of the potentially high reactivity of NO toward various amino acid residues in CD47, the efficacy of surface-immobilized pepCD47 to prevent inflammatory cell attachment was not inhibited after being subjected to a high flux of NO for three days, demonstrating excellent compatibility of the two species. We further constructed a CD47 surface immobilized silicone tubing filled with NO releasing S-nitrosoglutathione/ascorbic acid (GSNO/AA) solution for synergistic biocompatibility evaluation. Via an ex vivo Chandler loop model, we demonstrate for the first time that NO release and CD47 modification could function synergistically at the blood/material interface and produce greatly enhanced anti-inflammatory/anti-platelet effects. This concept should be readily implementable to create a new generation of thromboresistant/antimicrobial implantable devices.
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Affiliation(s)
- Qi Zhang
- Department of Chemistry, The University of Michigan, Ann Arbor, MI 48109-1055, United States
| | - Stanley J Stachelek
- Division of Cardiology-Department of Pediatrics, The Children's Hospital of Philadelphia, Philadelphia, PA, 19104, United States; Perelman School of Medicine, The University of Pennsylvania, Philadelphia, PA, 19104, United States
| | - Vaishali V Inamdar
- Division of Cardiology-Department of Pediatrics, The Children's Hospital of Philadelphia, Philadelphia, PA, 19104, United States; Perelman School of Medicine, The University of Pennsylvania, Philadelphia, PA, 19104, United States
| | - Ivan Alferiev
- Division of Cardiology-Department of Pediatrics, The Children's Hospital of Philadelphia, Philadelphia, PA, 19104, United States; Perelman School of Medicine, The University of Pennsylvania, Philadelphia, PA, 19104, United States
| | - Chandrasekaran Nagaswami
- Department of Cell and Developmental Biology, Perelman School of Medicine, The University of Pennsylvania, Philadelphia, PA, 19104, United States
| | - John W Weisel
- Department of Cell and Developmental Biology, Perelman School of Medicine, The University of Pennsylvania, Philadelphia, PA, 19104, United States
| | - Jeong Hyun Hwang
- Department of Chemistry, The University of Michigan, Ann Arbor, MI 48109-1055, United States
| | - Mark E Meyerhoff
- Department of Chemistry, The University of Michigan, Ann Arbor, MI 48109-1055, United States
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17
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Inamdar VV, Fitzpatrick E, Alferiev I, Nagaswami C, Spruce LA, Fazelinia H, Bratinov G, Seeholzer SH, Levy RJ, Fishbein I, Stachelek SJ. Stability and bioactivity of pepCD47 attachment on stainless steel surfaces. Acta Biomater 2020; 104:231-240. [PMID: 31935523 DOI: 10.1016/j.actbio.2019.12.039] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Revised: 12/16/2019] [Accepted: 12/30/2019] [Indexed: 12/30/2022]
Abstract
In-stent restenosis (ISR) and late stent thrombosis are the major complications associated with the use of metal stents and drug eluting stents respectively. Our lab previously investigated the use of peptide CD47 in improving biocompatibility of bare metal stents in a rat carotid stent model and our results demonstrated a significant reduction in platelet deposition and ISR. However, this study did not characterize the stability of the pepCD47 on metal surfaces post storage, sterilization and deployment. Thus, the objective of the present study was 1) to test the stability of the peptide post - storage, sterilization, exposure to shear and mechanical stress and 2) to begin to expand our current knowledge of pepCD47 coated metal surfaces into the preclinical large animal rabbit model. Our results show that the maximum immobilization density of pepCD47 on metal surfaces is approximately 350 ng/cm2. 100% of the pepCD47 was retained on the metal surface post 24 weeks of storage at 4 °C, exposure to physiological shear stress, and mechanical stress of stent expansion. The bioactivity of the pepCD47 was found to be intact post 24 weeks of storage and ethylene oxide sterilization. Finally our ex vivo studies demonstrated that compared to bare metal the rabbit pepCD47 coated surfaces showed - 45% reduced platelet adhesion, a 10-fold decrease in platelet activation, and 93% endothelial cell retention. Thus, our data suggests that pepCD47 coating on metal surfaces is stable and rabbit pepCD47 shows promising preliminary results in preventing thrombosis and not inhibiting the growth of endothelial cells. STATEMENT OF SIGNIFICANCE: Biocompatibility of bare metal stents is a major challenge owing to the significantly high rates of in-stent restenosis. Previously we demonstrated that peptide CD47 functionalization improves the biocompatibility of bare metal stents in rat model. A similar trend was observed in our ex vivo studies where rabbit blood was perfused over the rabbit pepCD47 functionalized surfaces. These results provide valuable proof of concept data for future in vivo rabbit model studies. In addition, we investigated stability of the pepCD47 on metal surface and observed that pepCD47 coating is stable over time and resistant to industrially relevant pragmatic challenges.
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Affiliation(s)
- Vaishali V Inamdar
- Division of Cardiology-Department of Pediatrics, The Children's Hospital of Philadelphia, United States
| | - Emmett Fitzpatrick
- Division of Cardiology-Department of Pediatrics, The Children's Hospital of Philadelphia, United States
| | - Ivan Alferiev
- Division of Cardiology-Department of Pediatrics, The Children's Hospital of Philadelphia, United States; The Proteomics Core Facility, The Children's Hospital of Philadelphia, Research Insititute, United States
| | - Chandrasekaran Nagaswami
- Perelman School of Medicine, The University of Pennsylvania, United States; Department of Cell and Developmental Biology, Perelman School of Medicine, The University of Pennsylvania, United States
| | - Lynn A Spruce
- The Proteomics Core Facility, The Children's Hospital of Philadelphia, Research Insititute, United States
| | - Hossein Fazelinia
- The Proteomics Core Facility, The Children's Hospital of Philadelphia, Research Insititute, United States
| | - George Bratinov
- Division of Orthopedics-Department of Pediatrics, The Children's Hospital of Philadelphia, United States
| | - Steven H Seeholzer
- The Proteomics Core Facility, The Children's Hospital of Philadelphia, Research Insititute, United States
| | - Robert J Levy
- Division of Cardiology-Department of Pediatrics, The Children's Hospital of Philadelphia, United States; Perelman School of Medicine, The University of Pennsylvania, United States
| | - Ilia Fishbein
- Division of Cardiology-Department of Pediatrics, The Children's Hospital of Philadelphia, United States; Perelman School of Medicine, The University of Pennsylvania, United States.
| | - Stanley J Stachelek
- Division of Cardiology-Department of Pediatrics, The Children's Hospital of Philadelphia, United States; Perelman School of Medicine, The University of Pennsylvania, United States.
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18
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Cheng Q, Gu J, Adhikari BK, Sun L, Sun J. Is CD47 a potentially promising therapeutic target in cardiovascular diseases? - Role of CD47 in cardiovascular diseases. Life Sci 2020; 247:117426. [PMID: 32061866 DOI: 10.1016/j.lfs.2020.117426] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Revised: 02/03/2020] [Accepted: 02/09/2020] [Indexed: 01/03/2023]
Abstract
CD47 (cluster of differentiation 47) is a ubiquitously expressed transmembrane protein that belongs to the immunoglobulin superfamily. CD47 is both a receptor for the matricellular protein thrombospondin-1 (TSP-1) and a ligand for signal-regulatory protein alpha (SIRPα). Suppression of CD47 activity enhances angiogenesis and blood flow, restores phagocytosis by macrophages, improves ischemic tissue survival, attenuates ischemia reperfusion injury, and reverses atherosclerotic plaque formation. In conclusion, these observations suggest a pathogenic role of CD47 in the development of cardiovascular diseases (CVDs) and indicate that CD47 might be a potentially promising molecular target for treating CVDs. Herein, we highlight the role of CD47 in the CVD pathogenesis and discuss the potential clinical application by targeting CD47 for treating CVDs.
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Affiliation(s)
- Quanli Cheng
- The First Hospital and Center of Cardiovascular Diseases, Jilin University, Changchun, China
| | - Junlian Gu
- The School of Nursing, Shandong University, Jinan, China
| | - Binay Kumar Adhikari
- The First Hospital and Center of Cardiovascular Diseases, Jilin University, Changchun, China
| | - Liguang Sun
- The First Hospital and Institute of Immunology, Jilin University, Changchun, China.
| | - Jian Sun
- The First Hospital and Center of Cardiovascular Diseases, Jilin University, Changchun, China.
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19
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Clauder F, Czerniak AS, Friebe S, Mayr SG, Scheinert D, Beck-Sickinger AG. Endothelialization of Titanium Surfaces by Bioinspired Cell Adhesion Peptide Coatings. Bioconjug Chem 2019; 30:2664-2674. [DOI: 10.1021/acs.bioconjchem.9b00573] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Franziska Clauder
- Institute of Biochemistry, Faculty of Life Sciences, Leipzig University, Brüderstrasse 34, 04103 Leipzig, Germany
| | - Anne Sophie Czerniak
- Institute of Biochemistry, Faculty of Life Sciences, Leipzig University, Brüderstrasse 34, 04103 Leipzig, Germany
| | - Sabrina Friebe
- Leibniz-Institute of Surface Engineering (IOM), Permoserstrasse 15, 04318 Leipzig, Germany
| | - Stefan G. Mayr
- Leibniz-Institute of Surface Engineering (IOM), Permoserstrasse 15, 04318 Leipzig, Germany
| | - Dierk Scheinert
- Department of Angiology, University Hospital Leipzig, Liebigstrasse 20, 04103 Leipzig, Germany
| | - Annette G. Beck-Sickinger
- Institute of Biochemistry, Faculty of Life Sciences, Leipzig University, Brüderstrasse 34, 04103 Leipzig, Germany
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20
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Dorand RD, Benson BL, Huang LF, Petrosiute A, Huang AY. Insights From Dynamic Neuro-Immune Imaging on Murine Immune Responses to CNS Damage. Front Neurosci 2019; 13:737. [PMID: 31379488 PMCID: PMC6650615 DOI: 10.3389/fnins.2019.00737] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Accepted: 07/02/2019] [Indexed: 01/22/2023] Open
Abstract
Evolving technologies and increasing understanding of human physiology over the past century have afforded our ability to intervene on human diseases using implantable bio-materials. These bio-electronic devices present a unique challenge through the creation of an interface between the native tissue and implantable bio-materials: the generation of host immune response surrounding such devices. While recent developments in cancer immunology seek to stimulate the immune system against cancer, successful long-term application of implantable bio-material devices need to durably minimize reactive immune processes at involved anatomical sites. Peripheral immune system response has been studied extensively for implanted bio-materials at various body sites. Examples include tooth composites (Gitalis et al., 2019), inguinal hernia repair (Heymann et al., 2019), and cardiac stents and pacemaker leads (Slee et al., 2016). Studies have also been extended to less well-studied immune reactivity in response to CNS neural-electronic implant devices. Recent technological advances in 2-Photon Laser Scanning Microscopy (2P-LSM) have allowed novel insights into in vivo immune response in a variety of tissue microenvironments. While imaging of peripheral tissues has provided an abundance of data with regards to immune cell dynamics, central nervous system (CNS) imaging is comparatively complicated by tissue accessibility and manipulation. Despite these challenges, the results of dynamic intravital neuro-immune imaging thus far have provided foundational insights into basic CNS biology. Utilizing a combination of intravital and ex vivo 2P-LSM, we have observed novel pathways allowing immune cells, stromal cells, cancer cells and proteins to communicate between the CNS parenchyma and peripheral vasculature. Similar to what has been reported in the intestinal tract, we have visualized myeloid cells extend dendritic processes across the blood brain barrier (BBB) into pial blood vessels. Furthermore, transient vessel leaks seen during systemic inflammation provide opportunities for cellular protein to be exchanged between the periphery and CNS. These insights provide new, visual information regarding immune surveillance and antigen presentation within the CNS. Furthermore, when combining intravital 2P-LSM and microfluidic devices complexed with mathematical modeling, we are gaining new insights into the intravascular behavior of circulating immune cells. This new knowledge into the basic mechanisms by which cells migrate to and interact with the CNS provide important considerations for the design of neuro-electronic biomaterials that have the potential to connect the peripheral-neural microenvironments into a unique, artificial interface.
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Affiliation(s)
- R Dixon Dorand
- Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, United States
| | - Bryan L Benson
- Department of Pathology, Case Western Reserve University School of Medicine, Cleveland, OH, United States
| | - Lauren F Huang
- Department of Pediatrics, Case Western Reserve University School of Medicine, Cleveland, OH, United States
| | - Agne Petrosiute
- Department of Pathology, Case Western Reserve University School of Medicine, Cleveland, OH, United States.,Department of Pediatrics, Case Western Reserve University School of Medicine, Cleveland, OH, United States.,Angie Fowler Adolescent & Young Adult (AYA) Cancer Institute/University Hospitals (UH) Rainbow Babies & Children's Hospital, Cleveland, OH, United States
| | - Alex Y Huang
- Department of Pathology, Case Western Reserve University School of Medicine, Cleveland, OH, United States.,Department of Pediatrics, Case Western Reserve University School of Medicine, Cleveland, OH, United States.,Angie Fowler Adolescent & Young Adult (AYA) Cancer Institute/University Hospitals (UH) Rainbow Babies & Children's Hospital, Cleveland, OH, United States
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21
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Slee JB, McLaughlin JS. Making it stick: A CURE designed to introduce students to the scientific process and the host response to foreign materials. BIOCHEMISTRY AND MOLECULAR BIOLOGY EDUCATION : A BIMONTHLY PUBLICATION OF THE INTERNATIONAL UNION OF BIOCHEMISTRY AND MOLECULAR BIOLOGY 2019; 47:417-425. [PMID: 31002463 DOI: 10.1002/bmb.21248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2018] [Revised: 03/08/2019] [Accepted: 03/27/2019] [Indexed: 06/09/2023]
Abstract
Often overlooked in many molecular cell biology laboratory and cell culture courses, suspension cells represent an important aspect of molecular cell biology and cell culture. Most primary cell cultures and cell lines are adherent cells which grow in monolayers on surfaces. However, other cells such as hematopoietic cells, certain tumor cells, and cells of the immune system are suspension cells which are anchorage-independent which grow and divide in solution. THP-1 cells are a commercially available, spontaneously immortalized monocyte-like cell line derived from the peripheral blood of a patient with acute monocytic leukemia. These cells are an excellent model for suspension cell culture and studies of the immune system. Researchers have used THP-1 cells to study the host response to implantable devices and biomaterials in vitro. Tissue contacting surfaces of implantable materials initiate a host inflammatory response characterized by many events, one of which includes macrophage attachment to the surface, which ultimately leads to degradation and failure of the material. Using the THP-1 adhesion assay embedded in this CURE, students can participate in the scientific process by testing substances which may prevent the host inflammatory response to implantable devices and biomaterials. © 2019 International Union of Biochemistry and Molecular Biology, 47(4):417-425, 2019.
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Affiliation(s)
- Joshua B Slee
- Department of Natural Scienece, DeSales University, Center Valley, Pennsylvania 18034
| | - Jacqueline S McLaughlin
- Department of Biology, Penn State University, Lehigh Valley, Center Valley, Pennsylvania 18034
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Wang J, Chen XC, Xue YF, Hu M, Wang YB, Ren KF, Ji J. Thermo-triggered ultrafast self-healing of microporous coating for on-demand encapsulation of biomacromolecules. Biomaterials 2018; 192:15-25. [PMID: 30415102 DOI: 10.1016/j.biomaterials.2018.10.038] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2018] [Revised: 10/13/2018] [Accepted: 10/28/2018] [Indexed: 01/11/2023]
Abstract
Medical coatings cooperated with biomacromolecules can regulate biological events and tissue responses, thus increasing medical implant longevity and providing improved and/or new therapeutic functions. In particular, medical coatings, which can load the correct species and doses of biomacromolecules according to individual diagnoses, will significantly optimize treatment effects and satisfy the rising clinical need of "precision medicine". Herein, we report on a dynamic microporous coating with an ultrafast self-healing property to fulfill the "load-and-play" concept for "precision medicine". A structure-switchable coating based on poly(ε-caprolactone)-poly(ethylene glycol)-poly(ε-caprolactone) triblock copolymer network is constructed. The coating can be switched to microporous morphology via a water swelling and freeze-drying process. Then, through a mild thermo-trigger as low as 40 °C, this spongy coating can undergo self-healing to switch back to a pore-free structure within minutes to even 5 s. Based on this dynamic coating, we suggest a simple and versatile method to encapsulate biomacromolecules for surface-mediated delivery. The ultrafast self-healing of the microporous structure enables uniform incorporation of biomacromolecules with an easily achieved high loading of albumin of 16.3 μg/cm2 within 1 min. More importantly, controllable encapsulation can be realized by simple control of the concentration of the loading solution. We further demonstrate that the encapsulated biomacromolecules retained their bioactivity. This work may benefit clinicians with flexibility to provide personalized medical coatings for individual patients during treatment.
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Affiliation(s)
- Jing Wang
- MOE Key Laboratory of Macromolecule Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, PR China
| | - Xia-Chao Chen
- MOE Key Laboratory of Macromolecule Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, PR China
| | - Yun-Fan Xue
- MOE Key Laboratory of Macromolecule Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, PR China
| | - Mi Hu
- MOE Key Laboratory of Macromolecule Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, PR China
| | - Yun-Bing Wang
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, PR China
| | - Ke-Feng Ren
- MOE Key Laboratory of Macromolecule Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, PR China.
| | - Jian Ji
- MOE Key Laboratory of Macromolecule Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, PR China
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Small M, Faglie A, Craig AJ, Pieper M, Fernand Narcisse VE, Neuenschwander PF, Chou SF. Nanostructure-Enabled and Macromolecule-Grafted Surfaces for Biomedical Applications. MICROMACHINES 2018; 9:E243. [PMID: 30424176 PMCID: PMC6187347 DOI: 10.3390/mi9050243] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/15/2018] [Revised: 05/11/2018] [Accepted: 05/16/2018] [Indexed: 12/19/2022]
Abstract
Advances in nanotechnology and nanomaterials have enabled the development of functional biomaterials with surface properties that reduce the rate of the device rejection in injectable and implantable biomaterials. In addition, the surface of biomaterials can be functionalized with macromolecules for stimuli-responsive purposes to improve the efficacy and effectiveness in drug release applications. Furthermore, macromolecule-grafted surfaces exhibit a hierarchical nanostructure that mimics nanotextured surfaces for the promotion of cellular responses in tissue engineering. Owing to these unique properties, this review focuses on the grafting of macromolecules on the surfaces of various biomaterials (e.g., films, fibers, hydrogels, and etc.) to create nanostructure-enabled and macromolecule-grafted surfaces for biomedical applications, such as thrombosis prevention and wound healing. The macromolecule-modified surfaces can be treated as a functional device that either passively inhibits adverse effects from injectable and implantable devices or actively delivers biological agents that are locally based on proper stimulation. In this review, several methods are discussed to enable the surface of biomaterials to be used for further grafting of macromolecules. In addition, we review surface-modified films (coatings) and fibers with respect to several biomedical applications. Our review provides a scientific update on the current achievements and future trends of nanostructure-enabled and macromolecule-grafted surfaces in biomedical applications.
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Affiliation(s)
- Madeline Small
- Department of Mechanical Engineering, College of Engineering, The University of Texas at Tyler, 3900 University Blvd., Tyler, TX 75799, USA.
| | - Addison Faglie
- Department of Mechanical Engineering, College of Engineering, The University of Texas at Tyler, 3900 University Blvd., Tyler, TX 75799, USA.
| | - Alexandra J Craig
- Department of Mechanical Engineering, College of Engineering, The University of Texas at Tyler, 3900 University Blvd., Tyler, TX 75799, USA.
| | - Martha Pieper
- Department of Mechanical Engineering, College of Engineering, The University of Texas at Tyler, 3900 University Blvd., Tyler, TX 75799, USA.
| | - Vivian E Fernand Narcisse
- Department of Chemistry and Physics, School of Arts and Sciences, LeTourneau University, Longview, TX 75607, USA.
| | - Pierre F Neuenschwander
- Department of Cellular and Molecular Biology, The University of Texas Health Science Center at Tyler, Tyler, TX 75708, USA.
| | - Shih-Feng Chou
- Department of Mechanical Engineering, College of Engineering, The University of Texas at Tyler, 3900 University Blvd., Tyler, TX 75799, USA.
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Watanabe H, Sahara H, Nomura S, Tanabe T, Ekanayake-Alper DK, Boyd LK, Louras NJ, Asfour A, Danton MA, Ho SH, Arn SJ, Hawley RJ, Shimizu A, Nagayasu T, Ayares D, Lorber MI, Sykes M, Sachs DH, Yamada K. GalT-KO pig lungs are highly susceptible to acute vascular rejection in baboons, which may be mitigated by transgenic expression of hCD47 on porcine blood vessels. Xenotransplantation 2018. [PMID: 29527745 DOI: 10.1111/xen.12391] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
BACKGROUND Despite recent progress in survival times of xenografts in non-human primates, there are no reports of survival beyond 5 days of histologically well-aerated porcine lung grafts in baboons. Here, we report our initial results of pig-to-baboon xeno-lung transplantation (XLTx). METHODS Eleven baboons received genetically modified porcine left lungs from either GalT-KO alone (n = 3), GalT-KO/humanCD47(hCD47)/hCD55 (n = 3), GalT-KO/hD47/hCD46 (n = 4), or GalT-KO/hCD39/hCD46/hCD55/TBM/EPCR (n = 1) swine. The first 2 XLTx procedures were performed under a non-survival protocol that allowed a 72-hour follow-up of the recipients with general anesthesia, while the remaining 9 underwent a survival protocol with the intention of weaning from ventilation. RESULTS Lung graft survivals in the 2 non-survival animals were 48 and >72 hours, while survivals in the other 9 were 25 and 28 hours, at 5, 5, 6, 7, >7, 9, and 10 days. One baboon with graft survival >7 days, whose entire lung graft remained well aerated, was euthanized on POD 7 due to malfunction of femoral catheters. hCD47 expression of donor lungs was detected in both alveoli and vessels only in the 3 grafts surviving >7, 9, and 10 days. All other grafts lacked hCD47 expression in endothelial cells and were completely rejected with diffuse hemorrhagic changes and antibody/complement deposition detected in association with early graft loss. CONCLUSIONS To our knowledge, this is the first evidence of histologically viable porcine lung grafts beyond 7 days in baboons. Our results indicate that GalT-KO pig lungs are highly susceptible to acute humoral rejection and that this may be mitigated by transgenic expression of hCD47.
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Affiliation(s)
- Hironosuke Watanabe
- Columbia Center for Translational Immunology, Columbia University Medical Center, New York, NY, USA
| | - Hisashi Sahara
- Division of Organ Replacement and Xenotransplantation Surgery, Center for Advanced Biomedical Science and Swine Research, Kagoshima University, Kagoshima, Japan
| | - Shunichiro Nomura
- Columbia Center for Translational Immunology, Columbia University Medical Center, New York, NY, USA
| | - Tatsu Tanabe
- Columbia Center for Translational Immunology, Columbia University Medical Center, New York, NY, USA
| | | | - Lennan K Boyd
- Columbia Center for Translational Immunology, Columbia University Medical Center, New York, NY, USA
| | - Nathan J Louras
- Transplantation Biology Research Laboratories, Harvard Medical School, Massachusetts General Hospital, Boston, MA, USA
| | - Arsenoi Asfour
- Columbia Center for Translational Immunology, Columbia University Medical Center, New York, NY, USA
| | - Makenzie A Danton
- Columbia Center for Translational Immunology, Columbia University Medical Center, New York, NY, USA
| | - Siu-Hong Ho
- Columbia Center for Translational Immunology, Columbia University Medical Center, New York, NY, USA
| | - Scott J Arn
- Transplantation Biology Research Laboratories, Harvard Medical School, Massachusetts General Hospital, Boston, MA, USA
| | - Robert J Hawley
- Columbia Center for Translational Immunology, Columbia University Medical Center, New York, NY, USA
| | - Akira Shimizu
- Department of Analytic Human Pathology, Graduate School of Medicine, Nippon Medical School, Tokyo, Japan
| | - Takeshi Nagayasu
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | | | | | - Megan Sykes
- Columbia Center for Translational Immunology, Columbia University Medical Center, New York, NY, USA
| | - David H Sachs
- Columbia Center for Translational Immunology, Columbia University Medical Center, New York, NY, USA.,Transplantation Biology Research Laboratories, Harvard Medical School, Massachusetts General Hospital, Boston, MA, USA
| | - Kazuhiko Yamada
- Columbia Center for Translational Immunology, Columbia University Medical Center, New York, NY, USA
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25
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Evaluation of promoting effect of a novel Cu-bearing metal stent on endothelialization process from in vitro and in vivo studies. Sci Rep 2017; 7:17394. [PMID: 29234061 PMCID: PMC5727161 DOI: 10.1038/s41598-017-17737-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2017] [Accepted: 11/29/2017] [Indexed: 11/28/2022] Open
Abstract
Drug eluting stents (DES) have been extensively applied nowadays and reduce the incidence of in-stent restenosis (ISR) greatly as compared with bare metal stents (BMS). However, the development of DES is hindered by the risk of late stent thrombosis (LST) due to delayed re-endothelialization, while endothelialization is an important process related to ISR and LST after implantation. 316L is a traditional stent material without bioactivity and have a high risk of ISR. Cu is recognized for angiogenesis stimulation in these years. Hence a copper bearing 316L stainless steel (316L-Cu) was prepared and evaluated about its effect on endothelialization in this paper. Compared with traditional 316L, it was proved that 316L-Cu increased the proliferation of co-cultured human umbilical vein endothelial cells (HUVECs) at first day. Moreover, HUVECs stretched better on the surface of 316L-Cu. It also improved the expression of angiogenesis related genes and tube formation ability in vitro. 316L-Cu-BMS, DES and 316L-BMS were implanted in swine to evaluate the re-endothelialization ability in vivo. And 316L-Cu-BMS showed the best effect on endothelialization with good biosafety. Consequently, 316L-Cu is a kind of promising BMS material for coronary field.
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26
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Fishbein I, Welch T, Guerrero DT, Alferiev IS, Adamo RF, Chorny M, Gupte RK, Tang Y, Levy RJ. Paraffin processing of stented arteries using a postfixation dissolution of metallic and polymeric stents. Cardiovasc Pathol 2016; 25:483-488. [PMID: 27616613 DOI: 10.1016/j.carpath.2016.08.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/27/2016] [Revised: 08/15/2016] [Accepted: 08/16/2016] [Indexed: 12/20/2022] Open
Abstract
Studying the morphology of the arterial response to endovascular stent implantation requires embedding the explanted stented artery in rigid materials such as poly(methyl methacrylate) to enable sectioning through both the in situ stent and the arterial wall, thus maintaining the proper anatomic relationships. This is a laborious, time-consuming process. Moreover, the technical quality of stained plastic sections is typically suboptimal and, in some cases, precludes immunohistochemical analysis. Here we describe a novel technique for dissolution of metallic and plastic stents that is compatible with subsequent embedding of "destented" arteries in paraffin, fine sectioning, major staining protocols, and immunohistochemistry.
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Affiliation(s)
- Ilia Fishbein
- The Children's Hospital of Philadelphia, Philadelphia, PA, USA; Department of Pediatrics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.
| | - Tre Welch
- Department of Cardio-Thoracic Surgery, University of Texas, Dallas, Richardson, TX, USA
| | | | - Ivan S Alferiev
- The Children's Hospital of Philadelphia, Philadelphia, PA, USA; Department of Pediatrics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Richard F Adamo
- The Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Michael Chorny
- The Children's Hospital of Philadelphia, Philadelphia, PA, USA; Department of Pediatrics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Rohit K Gupte
- The Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Yanqing Tang
- The Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Robert J Levy
- The Children's Hospital of Philadelphia, Philadelphia, PA, USA; Department of Pediatrics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
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