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Lin C, Liu F, Chen G, Bai X, Ding Y, Chung SM, Lee IS, Bai H, Chen C. Apatite nanosheets inhibit initial smooth muscle cell proliferation by damaging cell membrane. BIOMATERIALS ADVANCES 2022; 137:212852. [PMID: 35929280 DOI: 10.1016/j.bioadv.2022.212852] [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: 12/15/2021] [Revised: 04/06/2022] [Accepted: 05/09/2022] [Indexed: 06/15/2023]
Abstract
Understanding how nanostructured coatings interact with cells is related to how they manipulate cell behaviors and is therefore critical for designing better biomaterials. The apatite nanosheets were deposited on metallic substrates via biomimetic precipitation. Cell viability of apatite nanosheets towards to smooth muscle cells (SMCs) were investigated, and the underlying mechanism was proposed. Apatite nanosheets presented inhibitory activity on SMC growth, and caused rupture of cell membranes. On the basis of measuring changes in intracellular calcium ([Ca2+]i), observing cell contraction and apatite nanosheets - SMC interaction, it was found that calcium ions released from apatite led to rises in [Ca2+]i, which induced vigorous SMC contraction on apatite nanosheets. Consequently, the cell membrane of individual SMCs was cut/penetrated by the sharp edges of apatite nanosheets, resulting in cell inactivation. This damage of cell membranes suggests a novel mechanism to manipulate cell viability, and may offer insights for the better design of calcium-based nanostructured coatings or other biomedical applications.
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Affiliation(s)
- Chenming Lin
- College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou 310018, PR China
| | - Fan Liu
- Department of Orthodontics, School of Stomatology, China Medical University, Shenyang 110002, PR China
| | - Guiqian Chen
- College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou 310018, PR China
| | - Xue Bai
- College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou 310018, PR China
| | - Yahui Ding
- Department of Cardiology, Zhejiang Provincial People's Hospital, Hangzhou 310014, PR China
| | - Sung-Min Chung
- Biomaterials R&D Center, GENOSS Co., Ltd., Suwon-si 443-270, Republic of Korea
| | - In-Seop Lee
- College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou 310018, PR China; Institute of Human Materials, Suwon 16514, Republic of Korea
| | - Hao Bai
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, PR China
| | - Cen Chen
- College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou 310018, PR China.
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Hassan S, Ali MN, Ghafoor B. Evolutionary perspective of drug eluting stents: from thick polymer to polymer free approach. J Cardiothorac Surg 2022; 17:65. [PMID: 35379273 PMCID: PMC8981810 DOI: 10.1186/s13019-022-01812-y] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Accepted: 03/20/2022] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND Introduction of Bare Metal Stents (BMS) was itself a revolutionary step in the history of the medical industry; however, Drug Eluting Stents (DES) maintained its superiority over BMS in every aspect from restenosis rate to late lumen loss. The reason behind the magnanimous position of the DES in the stent market is the degree of improvement with which it evolves. New and better stents come into the market every year, surpassing their predecessors by many folds. LITERATURE REVIEW This review paper discusses the journey of DES with supporting clinical trials in detail. In the first generation, there were stainless-steel stents with thicker coatings. Although they had superior results compared to BMS, there was still room for improvement. Afterward came the second-generation stents, which had superior metal platforms with thinner struts and thin coatings. The drugs were also changed from Paclitaxel and Sirolimus to Zotrolimus and Everolimus. These stents performed best; however, there was an issue of permanent coating, which remained intact over the stent surface after complete drug elution and started to cause issues in longer-term studies. Hence, an improved version of DES was introduced to these permanent coatings called the third generation of drug eluting stents, which initially utilized biodegradable polymer and ultimately moved towards polymer free drug coatings. This generation has introduced a unique amalgam of technologies to achieve its polymer free coatings; however, researchers have numerous prospects of growth in this field. This review paper highlights the major coups of stent technology evolution from BMS to DES, from thick polymeric coatings to thin coatings and from durable polymers to polymer free DES. CONCLUSION In conclusion, though the medical industry promptly accepted BMS as the best treatment option for cardiovascular diseases; however, DES has provided even better results than BMS. In DES, the first and second generation has ruled the technology for many years and are still on the shelves. Still, the issues aroused due to durable polymer shifted the attention towards biodegradable drug eluting stents, the third generation growing rapidly. But the scientific community has not restricted themselves and is investigating bioresorbable stents that completely eliminate the polymer intervention in drug eluting stent technology.
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Affiliation(s)
- Sadia Hassan
- Department of Biomedical Engineering and Sciences (BMES), School of Mechanical and Manufacturing Engineering (SMME), National University of Sciences and Technology (NUST), Islamabad, Pakistan
| | - Murtaza Najabat Ali
- Department of Biomedical Engineering and Sciences (BMES), School of Mechanical and Manufacturing Engineering (SMME), National University of Sciences and Technology (NUST), Islamabad, Pakistan.
| | - Bakhtawar Ghafoor
- Department of Biomedical Engineering and Sciences (BMES), School of Mechanical and Manufacturing Engineering (SMME), National University of Sciences and Technology (NUST), Islamabad, Pakistan
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Paul B, Lode A, Placht AM, Voß A, Pilz S, Wolff U, Oswald S, Gebert A, Gelinsky M, Hufenbach J. Cell-Material Interactions in Direct Contact Culture of Endothelial Cells on Biodegradable Iron-Based Stents Fabricated by Laser Powder Bed Fusion and Impact of Ion Release. ACS APPLIED MATERIALS & INTERFACES 2022; 14:439-451. [PMID: 34942074 DOI: 10.1021/acsami.1c21901] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Additive manufacturing is a promising technology for the fabrication of customized implants with complex geometry. The objective of this study was to investigate the initial cell-material interaction of degradable Fe-30Mn-1C-0.02S stent structures in comparison to conventional 316L as a reference, both processed by laser powder bed fusion. FeMn-based alloys have comparable mechanical properties with clinically applied AISI 316L for a corrosion-resistant stent material. Different corrosion stages of the as-built Fe-30Mn-1C-0.02S stent surfaces were simulated by pre-conditioning in DMEM under cell culture conditions for 2 h, 7 days, and 28 days. Human umbilical vein endothelial cells (HUVECs) were directly seeded onto the pre-conditioned samples, and cell viability, adherence, and morphology were analyzed. These studies were accompanied by measurements of iron and manganese ion release and Auger electron spectroscopy to evaluate the influence of corrosion products and degradation on the cells. In the initial phase (2 h of pre-conditioning), HUVECs were able to attach but the cell number decreased over the cultivation period of 14 days and the CD31 staining pattern of intercellular contacts was disordered. At later time points of corrosion (7 and 28 days of pre-conditioning), CD31 staining was distinctly located at the intercellular contacts, and the cell density increased after seeding and was stable for up to 14 days. Formation of a complex degradation layer, which had a composition and thickness dependent on the pre-conditioning time, led to a reduced ion release and finally showed a positive effect on cell survival. Concluding, our data suggest the suitability of Fe-30Mn-1C-0.02S for in vivo applications.
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Affiliation(s)
- Birgit Paul
- Leibniz IFW Dresden, Institute for Complex Materials, Helmholtzstr. 20, D-01069 Dresden, Germany
| | - Anja Lode
- Centre for Translational Bone, Joint and Soft Tissue Research, University Hospital Carl Gustav Carus and Faculty of Medicine, Technische Universität Dresden, Fetscherstr. 74, D-01307 Dresden, Germany
| | - Anna-Maria Placht
- Centre for Translational Bone, Joint and Soft Tissue Research, University Hospital Carl Gustav Carus and Faculty of Medicine, Technische Universität Dresden, Fetscherstr. 74, D-01307 Dresden, Germany
| | - Andrea Voß
- Leibniz IFW Dresden, Institute for Complex Materials, Helmholtzstr. 20, D-01069 Dresden, Germany
| | - Stefan Pilz
- Leibniz IFW Dresden, Institute for Complex Materials, Helmholtzstr. 20, D-01069 Dresden, Germany
| | - Ulrike Wolff
- Leibniz IFW Dresden, Institute for Metallic Materials, Helmholtzstr. 20, D-01069 Dresden, Germany
| | - Steffen Oswald
- Leibniz IFW Dresden, Institute for Complex Materials, Helmholtzstr. 20, D-01069 Dresden, Germany
| | - Annett Gebert
- Leibniz IFW Dresden, Institute for Complex Materials, Helmholtzstr. 20, D-01069 Dresden, Germany
| | - Michael Gelinsky
- Centre for Translational Bone, Joint and Soft Tissue Research, University Hospital Carl Gustav Carus and Faculty of Medicine, Technische Universität Dresden, Fetscherstr. 74, D-01307 Dresden, Germany
| | - Julia Hufenbach
- Leibniz IFW Dresden, Institute for Complex Materials, Helmholtzstr. 20, D-01069 Dresden, Germany
- Institute of Materials Science, TU Bergakademie Freiberg, Gustav-Zeuner-Str. 5, D-09599 Freiberg, Germany
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Cherian AM, Nair SV, Maniyal V, Menon D. Surface engineering at the nanoscale: A way forward to improve coronary stent efficacy. APL Bioeng 2021; 5:021508. [PMID: 34104846 PMCID: PMC8172248 DOI: 10.1063/5.0037298] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Accepted: 04/26/2021] [Indexed: 12/12/2022] Open
Abstract
Coronary in-stent restenosis and late stent thrombosis are the two major inadequacies of vascular stents that limit its long-term efficacy. Although restenosis has been successfully inhibited through the use of the current clinical drug-eluting stent which releases antiproliferative drugs, problems of late-stent thrombosis remain a concern due to polymer hypersensitivity and delayed re-endothelialization. Thus, the field of coronary stenting demands devices having enhanced compatibility and effectiveness to endothelial cells. Nanotechnology allows for efficient modulation of surface roughness, chemistry, feature size, and drug/biologics loading, to attain the desired biological response. Hence, surface topographical modification at the nanoscale is a plausible strategy to improve stent performance by utilizing novel design schemes that incorporate nanofeatures via the use of nanostructures, particles, or fibers, with or without the use of drugs/biologics. The main intent of this review is to deliberate on the impact of nanotechnology approaches for stent design and development and the recent advancements in this field on vascular stent performance.
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Affiliation(s)
- Aleena Mary Cherian
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita
Vishwa Vidyapeetham, Ponekkara P.O. Cochin 682041, Kerala,
India
| | - Shantikumar V. Nair
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita
Vishwa Vidyapeetham, Ponekkara P.O. Cochin 682041, Kerala,
India
| | - Vijayakumar Maniyal
- Department of Cardiology, Amrita Institute of Medical Science
and Research Centre, Amrita Vishwa Vidyapeetham, Ponekkara P.O. Cochin
682041, Kerala, India
| | - Deepthy Menon
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita
Vishwa Vidyapeetham, Ponekkara P.O. Cochin 682041, Kerala,
India
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Zhang B, Zheng B, Wang X, Shi Q, Jia J, Huo Y, Pan C, Han J, Chen M. Polymer-free dual drug-eluting stents evaluated in a porcine model. BMC Cardiovasc Disord 2017; 17:222. [PMID: 28810900 PMCID: PMC5558731 DOI: 10.1186/s12872-017-0654-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2017] [Accepted: 08/02/2017] [Indexed: 01/02/2023] Open
Abstract
BACKGROUND Although drug-eluting stents have dramatically reduced the rates of restenosis and target lesion revascularization, they are associated with stent thrombosis (ST), a catastrophic event likely due to delayed endothelialization and chronic inflammation caused by the polymer and the metal scaffolds. To increase the safety and efficacy of stents, polymer-free dual drug-eluting stents (DDES) have been developed. METHODS A total 160 stents (Bare-metal stents (BMS), polymer-free probucol stents (PrES), sirolimus-eluting stents (SES) and DDES) were randomly implanted in the coronary arteries of 80 pigs. 14, 28, 90 and 191 days after implantation, QCA and OCT evaluations were performed in 20 pigs respectively, and the arteries were harvested for scanning electron microscope (SEM), histomorphology, histopathology analyses and for the relative expression of CD31, CD34 and CD133 on mRNA and protein levels. RESULTS At the 14-day time point, there were significant differences in the strut rate coverage (p = 0.011), with greater coverage in the PrES than in the SES group (53.2%vs. 20.3%, p = 0.002). As well, there were no significant differences in the expression of CD31, CD34 and CD133 between groups in mRNA and protein level. CONCLUSIONS DDES were as safe as BMS and SES, but they did not further improve the endothelialization of the stented coronary arteries in the porcine model.
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Affiliation(s)
- Bin Zhang
- Department of Cardiology, Peking University First Hospital, No. 8 Xishiku Str., Xicheng District, Beijing, 100034, China
| | - Bo Zheng
- Department of Cardiology, Peking University First Hospital, No. 8 Xishiku Str., Xicheng District, Beijing, 100034, China
| | - Xingang Wang
- Department of Cardiology, Peking University First Hospital, No. 8 Xishiku Str., Xicheng District, Beijing, 100034, China
| | - Qiuping Shi
- Department of Cardiology, Peking University First Hospital, No. 8 Xishiku Str., Xicheng District, Beijing, 100034, China
| | - Jia Jia
- Department of Cardiology, Peking University First Hospital, No. 8 Xishiku Str., Xicheng District, Beijing, 100034, China
| | - Yong Huo
- Department of Cardiology, Peking University First Hospital, No. 8 Xishiku Str., Xicheng District, Beijing, 100034, China
| | - Chunshui Pan
- Department of Integration of Chinese and Western Medicine, School of Basic Medical Sciences, Peking University, No. 38 Xueyuan Rd, Haidian District, Beijing, 100191, China.,Tasly Microcirculation Research Center, Peking University Health Science Center, Beijing, 100191, China
| | - Jingyan Han
- Department of Integration of Chinese and Western Medicine, School of Basic Medical Sciences, Peking University, No. 38 Xueyuan Rd, Haidian District, Beijing, 100191, China. .,Tasly Microcirculation Research Center, Peking University Health Science Center, Beijing, 100191, China.
| | - Ming Chen
- Department of Cardiology, Peking University First Hospital, No. 8 Xishiku Str., Xicheng District, Beijing, 100034, China.
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Chen C, Yao C, Yang J, Luo D, Kong X, Chung SM, Lee IS. Biomimetic apatite formed on cobalt-chromium alloy: A polymer-free carrier for drug eluting stent. Colloids Surf B Biointerfaces 2017; 151:156-164. [DOI: 10.1016/j.colsurfb.2016.12.021] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2016] [Accepted: 12/14/2016] [Indexed: 12/16/2022]
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Zhu J, Zhang Q, Chen L, Zhang C, Zhou X, Yuan Y, Zhang R. Three-Year Clinical Outcomes of a Polymer-Free Paclitaxel-Eluting Microporous Stent in Real-World Practice: Final Results of the Safety and Efficacy Registry of the Yinyi Stent (SERY-I). ACTA CARDIOLOGICA SINICA 2017; 33:28-33. [PMID: 28115804 DOI: 10.6515/acs20160131b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
BACKGROUND The safety and efficacy of a China-made polymer-free paclitaxel-eluting microporous stent (Yinyi) at 1-year has been previously reported. However, limited evidence exists regarding the long-term performance of this novel drug-eluting stent (DES). This study investigated the 3-year efficacy and safety of the Yinyi stent in the setting of safety and efficacy registry of the Yinyi stent (SERY-I) clinical trial. METHODS Between June 2008 and August 2009, a total of 1045 patients undergoing percutaneous coronary intervention (PCI) were implanted with ≥ 1 Yinyi stents at 27 medical centers in mainland China. Thereafter, clinical follow-up was performed for a period of 3 years after enrollment. The primary endpoint was the cumulative rate of composite major adverse cardiac events (MACE) including target lesion revascularization (TLR), the combined incidence of cardiac death, and non-fatal myocardial infarction; the second endpoint was the incidence of stent thrombosis. RESULTS Overall, 1376 lesions were treated successfully with 1713 Yinyi stents, and 1019 (98.7%) patients received dual antiplatelet therapy for at least 12 months. At 3 years, a total of 13 (1.33%) patients had suffered cardiac death. The incidence of non-fatal myocardial infarction and TLR was 9 (0.92%) and 58 (5.92%) among the patients. Stent thrombosis occurred in 13 (1.33%) patients, and the rate of Academic Research Consortium (ARC) definite or probable stent thrombosis was 0.82%. CONCLUSIONS Given the limitations that SERY-I was a single arm, nonrandomized study and only telephone follow-up was performed without angiographic analysis, the safety and efficacy of Yinyi stent observed in this extended follow-up Registry needs further verification.
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Affiliation(s)
- Jinzhou Zhu
- Department of Cardiology, Rui Jin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025
| | - Qi Zhang
- Department of Cardiology, Rui Jin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025
| | - Lianglong Chen
- Department of Cardiology, Union Hospital, Fujian Medical University, Fuzhou 350005, Fujian
| | - Chenyun Zhang
- Department of Cardiology, Guizhou Provincial People's Hospital, Guiyang 550002, Guizhou
| | - Xuchen Zhou
- Department of Cardiology, The First Affiliated Hospital of Dalian Medical University, Dalian 116011, Liaoning
| | - Yong Yuan
- Department of Cardiology, Zhongshan People's Hospital of Guangdong Province, Guangdong 528400, China
| | - Ruiyan Zhang
- Department of Cardiology, Rui Jin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025
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The Quest for the Perfect Stent for a Given Patient. JACC Cardiovasc Interv 2016; 9:65-67. [DOI: 10.1016/j.jcin.2015.11.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/09/2015] [Accepted: 11/09/2015] [Indexed: 11/21/2022]
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Yu Y, Wise SG, Celermajer DS, Bilek MMM, Ng MKC. Bioengineering stents with proactive biocompatibility. Interv Cardiol 2015. [DOI: 10.2217/ica.15.46] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Takimura CK, Galon MZ, Gutierrez PS, Sojitra P, Vyas A, Doshi M, Lemos PA. A new polymer-free drug-eluting stent with nanocarriers eluting sirolimus from stent-plus-balloon compared with bare-metal stent and with biolimus A9 eluting stent in porcine coronary arteries. Cardiovasc Diagn Ther 2015; 5:113-21. [PMID: 25984451 DOI: 10.3978/j.issn.2223-3652.2015.03.08] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2015] [Accepted: 03/16/2015] [Indexed: 11/14/2022]
Abstract
BACKGROUND Permanent polymers in first generation drug-eluting stent (DES) have been imputed to be a possible cause of persistent inflammation, remodeling, malapposition and late stent thrombosis. We aim to describe the in vivo experimental result of a new polymer-free DES eluting sirolimus from stent-plus-balloon (Focus np stent, Envision Scientific) compared with a bare-metal stent (BMS) (Amazonia CroCo, Minvasys) and with a biolimus A9 eluting stent (Biomatrix, Biosensors). METHODS In 10 juvenile pigs, 23 coronary stents were implanted in the coronary arteries (8 Amazonia CroCo, 8 Focus np, and 7 Biomatrix). At 28-day follow-up, optical coherence tomography (OCT) and histology were used to evaluate neointimal hyperplasia and healing response. RESULTS According to OCT analysis, Focus np stents had a greater lumen area and less neointimal hyperplasia response than BMS and Biomatrix had. Histomorphometry results showed less neointimal hyperplasia in Focus np than in BMS. Histology showed a higher fibrin deposition in Biomatrix stent compared to Focus np and BMS. CONCLUSIONS The new polymer-free DES with sirolimus eluted from stent-plus-balloon demonstrated safety and reduced neointimal proliferation compared with the BMS and Biomatrix stents at 28-day follow-up in this porcine coronary model. This new polymer-free DES is promising and warrants further clinical studies.
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Affiliation(s)
- Celso K Takimura
- 1 Department of Interventional Cardiology, Heart Institute (InCor), University of São Paulo Medical School, São Paulo, Brazil ; 2 Envision Scientific Pvt. Ltd., Office 1-3, Silver Palm II, Opposite Snehmilan Garden, Kadampalli, Nanpura, Surat, Gujarat, India
| | - Micheli Z Galon
- 1 Department of Interventional Cardiology, Heart Institute (InCor), University of São Paulo Medical School, São Paulo, Brazil ; 2 Envision Scientific Pvt. Ltd., Office 1-3, Silver Palm II, Opposite Snehmilan Garden, Kadampalli, Nanpura, Surat, Gujarat, India
| | - Paulo S Gutierrez
- 1 Department of Interventional Cardiology, Heart Institute (InCor), University of São Paulo Medical School, São Paulo, Brazil ; 2 Envision Scientific Pvt. Ltd., Office 1-3, Silver Palm II, Opposite Snehmilan Garden, Kadampalli, Nanpura, Surat, Gujarat, India
| | - Prakash Sojitra
- 1 Department of Interventional Cardiology, Heart Institute (InCor), University of São Paulo Medical School, São Paulo, Brazil ; 2 Envision Scientific Pvt. Ltd., Office 1-3, Silver Palm II, Opposite Snehmilan Garden, Kadampalli, Nanpura, Surat, Gujarat, India
| | - Ashwin Vyas
- 1 Department of Interventional Cardiology, Heart Institute (InCor), University of São Paulo Medical School, São Paulo, Brazil ; 2 Envision Scientific Pvt. Ltd., Office 1-3, Silver Palm II, Opposite Snehmilan Garden, Kadampalli, Nanpura, Surat, Gujarat, India
| | - Manish Doshi
- 1 Department of Interventional Cardiology, Heart Institute (InCor), University of São Paulo Medical School, São Paulo, Brazil ; 2 Envision Scientific Pvt. Ltd., Office 1-3, Silver Palm II, Opposite Snehmilan Garden, Kadampalli, Nanpura, Surat, Gujarat, India
| | - Pedro A Lemos
- 1 Department of Interventional Cardiology, Heart Institute (InCor), University of São Paulo Medical School, São Paulo, Brazil ; 2 Envision Scientific Pvt. Ltd., Office 1-3, Silver Palm II, Opposite Snehmilan Garden, Kadampalli, Nanpura, Surat, Gujarat, India
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Nahar-Gohad P, Gohad N, Tsai CC, Bordia R, Vyavahare N. Rat aortic smooth muscle cells cultured on hydroxyapatite differentiate into osteoblast-like cells via BMP-2-SMAD-5 pathway. Calcif Tissue Int 2015; 96:359-69. [PMID: 25725805 PMCID: PMC4393885 DOI: 10.1007/s00223-015-9962-z] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/14/2014] [Accepted: 02/03/2015] [Indexed: 01/24/2023]
Abstract
Vascular calcification is an important pathological condition associated with increased risk of cardiovascular mortality. Hydroxyapatite (HA) found in such deposits is the same polymorph of calcium (Ca) found in bone, indicating calcification may involve mechanisms akin to bone formation. Vascular smooth muscle cells (Vsmcs) have been shown to undergo phenotypic change to osteoblast-like cells. However, the mechanisms underlying this phenotypic change are unclear, and whether the stimulus to become osteogenic is a result of loss of mineralization inhibitors or early mineral deposits is not known. Our aim in this study is to identify mechanisms and signal transduction pathways that cause differentiation of Vsmcs into osteoblast-like cells in the presence of HA. We first characterized vascular origin of Vsmcs by studying the expression of smooth muscle cell markers: myosin heavy chain and smooth muscle actin along with SM22α at both mRNA and protein levels. Vsmcs grown on HA exhibited progressive change in cellular morphology at 3-, 7-, and 14-day time points. Culturing of Vsmcs on HA disc resulted in decrease in media Ca levels and increased expression of Ca-sensing receptor (CaSR) on Vsmcs resulting in upregulation of intracellular CaSR signaling leading to increased BMP-2 secretion. BMP-2 pathway mediated differentiation of Vsmcs to osteoblast-like cells shown by expression of osteogenic markers like runt-related transcription factor 2, osteocalcin, and alkaline phosphatase at mRNA and protein levels. Blocking CaSR by NPS-2143 reduced BMP-2 secretion and blocking the BMP-2 pathway by LDN-193189, a BMP inhibitor, modulated expression of osteogenic markers confirming their role in osteogenesis of Vsmcs.
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Affiliation(s)
- Pranjal Nahar-Gohad
- Department of Bioengineering, 501 Rhodes Research Center, Clemson University, Clemson, SC 29634
| | - Neeraj Gohad
- Department of Biological Sciences, 132 long Hall, Clemson University, Clemson, SC 29634
| | - Chen-Chih Tsai
- Department of Material Sciences, 161 Sirrine Hall, Clemson University, Clemson, SC 29634
| | - Rajendra Bordia
- Department of Material Sciences, 161 Sirrine Hall, Clemson University, Clemson, SC 29634
| | - Naren Vyavahare
- Department of Bioengineering, 501 Rhodes Research Center, Clemson University, Clemson, SC 29634
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Bedair TM, Cho Y, Park BJ, Joung YK, Han DK. Coating defects in polymer-coated drug-eluting stents. BIOMATERIALS AND BIOMECHANICS IN BIOENGINEERING 2014. [DOI: 10.12989/bme.2014.1.3.131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Zhang Y, Shen J, Li Z, Zhu A, Yuan Y, Yue R, Yuan J, Yin Y, She Q, Chen Y. Two-year clinical outcomes of different drug-eluting stents with different polymer coating strategies in coronary artery heart disease: A multi-centre, randomised, controlled clinical trial. Int J Cardiol 2013; 168:2646-52. [DOI: 10.1016/j.ijcard.2013.03.034] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/31/2012] [Revised: 02/01/2013] [Accepted: 03/17/2013] [Indexed: 10/27/2022]
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15
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Huan Z, Fratila-Apachitei LE, Apachitei I, Duszczyk J. Porous TiO2surface formed on nickel-titanium alloy by plasma electrolytic oxidation: A prospective polymer-free reservoir for drug eluting stent applications. J Biomed Mater Res B Appl Biomater 2013; 101:700-8. [DOI: 10.1002/jbm.b.32872] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2012] [Revised: 07/27/2012] [Accepted: 11/18/2012] [Indexed: 11/11/2022]
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Nazneen F, Herzog G, Arrigan DW, Caplice N, Benvenuto P, Galvin P, Thompson M. Surface chemical and physical modification in stent technology for the treatment of coronary artery disease. J Biomed Mater Res B Appl Biomater 2012; 100:1989-2014. [DOI: 10.1002/jbm.b.32772] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2012] [Accepted: 06/20/2012] [Indexed: 12/12/2022]
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Khan W, Farah S, Domb AJ. Drug eluting stents: Developments and current status. J Control Release 2012; 161:703-12. [PMID: 22366546 DOI: 10.1016/j.jconrel.2012.02.010] [Citation(s) in RCA: 121] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2011] [Revised: 02/07/2012] [Accepted: 02/11/2012] [Indexed: 11/27/2022]
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Rejchrt S, Bures J, Brozík J, Kopácová M. Use of bio-degradable stents for the treatment of refractory benign gastrointestinal stenoses. ACTA MEDICA (HRADEC KRÁLOVÉ) 2012. [PMID: 22283106 DOI: 10.14712/18059694.2016.37] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Bio-degradable stents are be made of different synthetic polymers (like polylactide or polyglycolide) or their co-polymers (polydioxanone). They can be used for treating benign stenoses of the small and large intestine, particularly in Crohn's disease. Endoscopic introduction of bio-degradable stents into small and large intestinal stenoses is feasible and relatively simple. Initial results are encouraging and the complication rate is low. However, there are still some difficulties that need to be overcome. The rate of early stent migration is still rather high (up to one third of patients). This might be solved by changes in the shape or rigidity of the stents as well as by further improvement in the design. Proof of long-term efficacy and safety requires further studies.
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Affiliation(s)
- Stanislav Rejchrt
- 2nd Department of Medicine, Charles University in Prague, Faculty of Medicine and University Hospital Hradec Králové, Czech Republic.
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Alviar CL, Tellez A, Wang M, Potts P, Smith D, Tsui M, Budzynski W, Raizner AE, Kleiman NS, Lev EI, Granada JF, Kaluza GL. Low-dose sirolimus-eluting hydroxyapatite coating on stents does not increase platelet activation and adhesion ex vivo. J Thromb Thrombolysis 2012; 34:91-8. [DOI: 10.1007/s11239-012-0696-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Lei L, Guo SR, Chen WL, Rong HJ, Lu F. Stents as a platform for drug delivery. Expert Opin Drug Deliv 2011; 8:813-31. [DOI: 10.1517/17425247.2011.572068] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Abizaid A, Costa JR. New drug-eluting stents: an overview on biodegradable and polymer-free next-generation stent systems. Circ Cardiovasc Interv 2011; 3:384-93. [PMID: 20716758 DOI: 10.1161/circinterventions.109.891192] [Citation(s) in RCA: 103] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Chen S, Guan S, Hou S, Wang L, Zhu S, Wang J, Li W. Characterization and corrosion properties of Ti-O/HA composite coatings on Mg-Zn alloy. SURF INTERFACE ANAL 2011. [DOI: 10.1002/sia.3752] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Costa JR, Abizaid A, Costa R, Feres F, Tanajura LF, Abizaid A, Maldonado G, Staico R, Siqueira D, Sousa AGMR, Bonan R, Sousa JE. 1-year results of the hydroxyapatite polymer-free sirolimus-eluting stent for the treatment of single de novo coronary lesions: the VESTASYNC I trial. JACC Cardiovasc Interv 2010; 2:422-7. [PMID: 19463465 DOI: 10.1016/j.jcin.2009.02.009] [Citation(s) in RCA: 74] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/10/2008] [Revised: 01/23/2009] [Accepted: 02/11/2009] [Indexed: 12/26/2022]
Abstract
OBJECTIVES We sought to assess the safety and efficacy of the novel VESTAsync-eluting stent (MIV Therapeutics, Atlanta, Georgia) combining a stainless steel platform with a nanothin-microporous hydroxyapatite surface coating impregnated with a polymer-free low-dose of sirolimus (55 microg). BACKGROUND Durable polymers in first-generation drug-eluting stents (DES) have been linked to local inflammatory reaction leading to a positive vessel remodeling, late incomplete stent apposition, and in some cases, stent thrombosis. The removal of the polymer from the DES system could increase the safety profile of this novel technology. METHODS A total of 15 patients with single de novo lesions in native coronary arteries with 3.0- to 3.5-mm diameter and <or=14-mm length were enrolled in this first-in-man study. Primary end point was in-stent late lumen loss (LL) at 4 and 9 months. RESULTS Baseline characteristics included mean age of 63 years and 33% of diabetics. Reference vessel diameter and lesion length were 2.7 +/- 0.3 mm and 10 +/- 2.0 mm, respectively. Procedure success was obtained in all cases. Lifelong aspirin and 5-month clopidogrel treatment were prescribed to all patients. At 4 months, in-stent LL and percentage of neointimal hyperplasia were 0.3 +/- 0.25 mm and 2.6 +/- 2.2%, respectively, with a nonsignificant increase at 9 months (0.36 +/- 0.23 mm and 4.0 +/- 2.2%, respectively). Serial intravascular ultrasound did not show late incomplete stent apposition. There were no major adverse cardiac events within 1 year of follow-up. CONCLUSIONS The novel VESTAsync-eluting stent was effective in reducing LL and neointimal hyperplasia at 4 and 9 months, with no evidence of late catch-up by quantitative coronary angiography or intravascular ultrasound.
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Nikolsky E, Danenberg HD, Lotan C, Beyar R. Highlights from the Innovations in Cardiovascular Interventions Meeting: in favor of creativity and ingenuity. Expert Rev Cardiovasc Ther 2010; 8:491-7. [PMID: 20397822 DOI: 10.1586/erc.10.30] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The annual Innovations in Cardiovascular Interventions Meeting was organized in close collaboration with the Cardiovascular Research Foundation and was co-sponsored by the Society for Coronary Angiography and Interventions. The meeting was co-chaired by Rafael Beyar and Chaim Lotan, and took place in Tel Aviv, Israel, on 6-8 December 2009. It was a continuation of the series of international conferences in interventional cardiology held in Israel since 1995. The meeting is distinctive in that it provides a wide perspective on the innovative technologies and therapies for cardiovascular applications. Unique sessions covering emerging technologies, relationships between academia and industry, as well as regulatory aspects of medical devices provided participants with a wide perspective on current and future technologies. The Innovations in Cardiovascular Interventions Meeting was attended by over 700 participants from over 40 countries, including cardiologists, surgeons, nurses, pharmacists and allied health professionals. The world's leading experts in the field of interventional cardiology, cardiac surgery and radiology presented the latest information on innovative diagnostic and treatment modalities for cardiovascular pathology, and delivered expert lectures and clinical overviews, as well as presentations on the advances and controversies in basic, translational and clinical research. The meeting was accompanied by thematic live cases and a parade of new technology companies. Innovations in Cardiovascular Interventions Meeting 2009 presentations are available to watch and download at www.congress.co.il/ici2009 .
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Affiliation(s)
- Eugenia Nikolsky
- Heart Institute, Cardiovascular Research Unit, Rambam Health Care Campus Technion-Israel Institute of Technology, Haifa, Israel.
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Dixon SR, Grines CL, O'Neill WW. The Year in Interventional Cardiology. J Am Coll Cardiol 2009; 53:2080-97. [DOI: 10.1016/j.jacc.2009.02.035] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/07/2009] [Accepted: 02/18/2009] [Indexed: 12/19/2022]
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