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Zhuravleva IY, Karpova EV, Dokuchaeva AA, Titov AT, Timchenko TP, Vasilieva MB. Calcification of Various Bioprosthetic Materials in Rats: Is It Really Different? Int J Mol Sci 2023; 24:ijms24087274. [PMID: 37108443 PMCID: PMC10139218 DOI: 10.3390/ijms24087274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Revised: 04/05/2023] [Accepted: 04/11/2023] [Indexed: 04/29/2023] Open
Abstract
The causes of heart valve bioprosthetic calcification are still not clear. In this paper, we compared the calcification in the porcine aorta (Ao) and the bovine jugular vein (Ve) walls, as well as the bovine pericardium (Pe). Biomaterials were crosslinked with glutaraldehyde (GA) and diepoxide (DE), after which they were implanted subcutaneously in young rats for 10, 20, and 30 days. Collagen, elastin, and fibrillin were visualized in non-implanted samples. Atomic absorption spectroscopy, histological methods, scanning electron microscopy, and Fourier-transform infrared spectroscopy were used to study the dynamics of calcification. By the 30th day, calcium accumulated most intensively in the collagen fibers of the GA-Pe. In elastin-rich materials, calcium deposits were associated with elastin fibers and localized differences in the walls of Ao and Ve. The DE-Pe did not calcify at all for 30 days. Alkaline phosphatase does not affect calcification since it was not found in the implant tissue. Fibrillin surrounds elastin fibers in the Ao and Ve, but its involvement in calcification is questionable. In the subcutaneous space of young rats, which are used to model the implants' calcification, the content of phosphorus was five times higher than in aging animals. We hypothesize that the centers of calcium phosphate nucleation are the positively charged nitrogen of the pyridinium rings, which is the main one in fresh elastin and appears in collagen as a result of GA preservation. Nucleation can be significantly accelerated at high concentrations of phosphorus in biological fluids. The hypothesis needs further experimental confirmation.
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Affiliation(s)
- Irina Y Zhuravleva
- E. Meshalkin National Medical Research Center of the RF Ministry of Health, 15 Rechkunovskaya St., 630055 Novosibirsk, Russia
| | - Elena V Karpova
- N. Vorozhtsov Novosibirsk Institute of Organic Chemistry SB RAS, 9 Lavrentiev Avenue, 630090 Novosibirsk, Russia
| | - Anna A Dokuchaeva
- E. Meshalkin National Medical Research Center of the RF Ministry of Health, 15 Rechkunovskaya St., 630055 Novosibirsk, Russia
| | - Anatoly T Titov
- V. Sobolev Institute of Geology and Mineralogy SB RAS, 3 Academician Koptyug Avenue, 630090 Novosibirsk, Russia
| | - Tatiana P Timchenko
- E. Meshalkin National Medical Research Center of the RF Ministry of Health, 15 Rechkunovskaya St., 630055 Novosibirsk, Russia
| | - Maria B Vasilieva
- E. Meshalkin National Medical Research Center of the RF Ministry of Health, 15 Rechkunovskaya St., 630055 Novosibirsk, Russia
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Chen X, Yu T, Kong Q, Xu H, Zhao Z, Li G, Fan H, Wang Y. A chlorogenic acid functional strategy of anti-inflammation, anti-coagulation and promoted endothelial proliferation for bioprosthetic artificial heart valves. J Mater Chem B 2023; 11:2663-2673. [PMID: 36883900 DOI: 10.1039/d2tb02407a] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/25/2023]
Abstract
Heart valve replacement has become an optimal choice for the treatment of severe heart valve disease. At present, most commercial bioprosthetic heart valves (BHVs) are made from porcine pericardium or bovine pericardium treated with glutaraldehyde. Nevertheless, due to the toxicity of residual aldehyde groups left after glutaraldehyde cross-linking, these commercial BHVs exhibit poor biocompatibility, calcification, risk of coagulation and endothelialization difficulty, which greatly affects the durability of the BHVs and shortens their service life. In this work, based on a chlorogenic acid functional anti-inflammation, anti-coagulation and endothelialization strategy and dual-functional non-glutaraldehyde cross-linking reagent OX-CO, a kind of functional BHV material OX-CA-PP has been developed from OX-CO cross-linked porcine pericardium (OX-CO-PP) followed by the convenient modification of chlorogenic acid through a reactive oxygen species (ROS) sensitive borate ester bond. The functionalization of chlorogenic acid can reduce the risk of valve leaf thrombosis and promote endothelial cell proliferation, which is beneficial to the formation of a long-term interface with good blood compatibility. Meanwhile, such a ROS responsive behavior can trigger intelligent release of chlorogenic acid on-demand to achieve the inhibition of acute inflammation at the early stage of implantation. The in vivo and in vitro experimental results show that the functional BHV material OX-CA-PP exhibits superior anti-inflammation, improved anti-coagulation, minimal calcification and promoted proliferation of endothelial cells, showing that this non-glutaraldehyde functional strategy has great potential for the application of BHVs and providing a promising reference for other implanted biomaterials.
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Affiliation(s)
- Xiaotong Chen
- National Engineering Research Center of Clean Technology in Leather Industry, Sichuan University, Chengdu 610065, China
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610065, China.
| | - Tao Yu
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610065, China.
| | - Qunshou Kong
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610065, China.
| | - Hong Xu
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610065, China.
| | - Zhiyu Zhao
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610065, China.
| | - Gaocan Li
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610065, China.
| | - Haojun Fan
- National Engineering Research Center of Clean Technology in Leather Industry, Sichuan University, Chengdu 610065, China
| | - Yunbing Wang
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610065, China.
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Kostyunin AE, Glushkova TV, Lobov AA, Ovcharenko EA, Zainullina BR, Bogdanov LA, Shishkova DK, Markova VE, Asanov MA, Mukhamadiyarov RA, Velikanova EA, Akentyeva TN, Rezvova MA, Stasev AN, Evtushenko A, Barbarash LS, Kutikhin AG. Proteolytic Degradation Is a Major Contributor to Bioprosthetic Heart Valve Failure. J Am Heart Assoc 2022; 12:e028215. [PMID: 36565196 PMCID: PMC9973599 DOI: 10.1161/jaha.122.028215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Background Whereas the risk factors for structural valve degeneration (SVD) of glutaraldehyde-treated bioprosthetic heart valves (BHVs) are well studied, those responsible for the failure of BHVs fixed with alternative next-generation chemicals remain largely unknown. This study aimed to investigate the reasons behind the development of SVD in ethylene glycol diglycidyl ether-treated BHVs. Methods and Results Ten ethylene glycol diglycidyl ether-treated BHVs excised because of SVD, and 5 calcified aortic valves (AVs) replaced with BHVs because of calcific AV disease were collected and their proteomic profile was deciphered. Then, BHVs and AVs were interrogated for immune cell infiltration, microbial contamination, distribution of matrix-degrading enzymes and their tissue inhibitors, lipid deposition, and calcification. In contrast with dysfunctional AVs, failing BHVs suffered from complement-driven neutrophil invasion, excessive proteolysis, unwanted coagulation, and lipid deposition. Neutrophil infiltration was triggered by an asymptomatic bacterial colonization of the prosthetic tissue. Neutrophil elastase, myeloblastin/proteinase 3, cathepsin G, and matrix metalloproteinases (MMPs; neutrophil-derived MMP-8 and plasma-derived MMP-9), were significantly overexpressed, while tissue inhibitors of metalloproteinases 1/2 were downregulated in the BHVs as compared with AVs, together indicative of unbalanced proteolysis in the failing BHVs. As opposed to other proteases, MMP-9 was mostly expressed in the disorganized prosthetic extracellular matrix, suggesting plasma-derived proteases as the primary culprit of SVD in ethylene glycol diglycidyl ether-treated BHVs. Hence, hemodynamic stress and progressive accumulation of proteases led to the extracellular matrix degeneration and dystrophic calcification, ultimately resulting in SVD. Conclusions Neutrophil- and plasma-derived proteases are responsible for the loss of BHV mechanical competence and need to be thwarted to prevent SVD.
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Affiliation(s)
- Alexander E. Kostyunin
- Department of Experimental MedicineResearch Institute for Complex Issues of Cardiovascular DiseasesKemerovoRussian Federation
| | - Tatiana V. Glushkova
- Department of Experimental MedicineResearch Institute for Complex Issues of Cardiovascular DiseasesKemerovoRussian Federation
| | - Arseniy A. Lobov
- Department of Regenerative BiomedicineResearch Institute of CytologySt. PetersburgRussian Federation
| | - Evgeny A. Ovcharenko
- Department of Experimental MedicineResearch Institute for Complex Issues of Cardiovascular DiseasesKemerovoRussian Federation
| | - Bozhana R. Zainullina
- Centre for Molecular and Cell TechnologiesSt. Petersburg State University Research ParkSt. Petersburg State University, Universitetskaya EmbankmentSt. PetersburgRussian Federation
| | - Leo A. Bogdanov
- Department of Experimental MedicineResearch Institute for Complex Issues of Cardiovascular DiseasesKemerovoRussian Federation
| | - Daria K. Shishkova
- Department of Experimental MedicineResearch Institute for Complex Issues of Cardiovascular DiseasesKemerovoRussian Federation
| | - Victoria E. Markova
- Department of Experimental MedicineResearch Institute for Complex Issues of Cardiovascular DiseasesKemerovoRussian Federation
| | - Maksim A. Asanov
- Department of Experimental MedicineResearch Institute for Complex Issues of Cardiovascular DiseasesKemerovoRussian Federation
| | - Rinat A. Mukhamadiyarov
- Department of Experimental MedicineResearch Institute for Complex Issues of Cardiovascular DiseasesKemerovoRussian Federation
| | - Elena A. Velikanova
- Department of Experimental MedicineResearch Institute for Complex Issues of Cardiovascular DiseasesKemerovoRussian Federation
| | - Tatiana N. Akentyeva
- Department of Experimental MedicineResearch Institute for Complex Issues of Cardiovascular DiseasesKemerovoRussian Federation
| | - Maria A. Rezvova
- Department of Experimental MedicineResearch Institute for Complex Issues of Cardiovascular DiseasesKemerovoRussian Federation
| | - Alexander N. Stasev
- Department of Experimental MedicineResearch Institute for Complex Issues of Cardiovascular DiseasesKemerovoRussian Federation
| | - Alexey V. Evtushenko
- Department of Experimental MedicineResearch Institute for Complex Issues of Cardiovascular DiseasesKemerovoRussian Federation
| | - Leonid S. Barbarash
- Department of Experimental MedicineResearch Institute for Complex Issues of Cardiovascular DiseasesKemerovoRussian Federation
| | - Anton G. Kutikhin
- Department of Experimental MedicineResearch Institute for Complex Issues of Cardiovascular DiseasesKemerovoRussian Federation
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Liu Y, Wu Z, Chen C, Lu T, Song M, Qi X, Jiang Z, Liu S, Tang Z. The hybrid crosslinking method improved the stability and anti-calcification properties of the bioprosthetic heart valves. Front Bioeng Biotechnol 2022; 10:1008664. [PMID: 36159659 PMCID: PMC9500414 DOI: 10.3389/fbioe.2022.1008664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Accepted: 08/22/2022] [Indexed: 12/02/2022] Open
Abstract
The bioprosthetic heart valves (BHVs) are the best option for the treatment of valvular heart disease. Glutaraldehyde (Glut) is commonly used as the golden standard reagent for the crosslinking of BHVs. However, the obvious defects of Glut, including residual aldehyde toxicity, degradation and calcification, increase the probability of valve failure in vivo and motivated the exploration of alternatives. Thus, the aim of this study is to develop a non-glutaraldehyde hybrid cross-linking method composed of Neomycin Trisulfate, Polyethylene glycol diglycidyl ether and Tannic acid as a substitute for Glut, which was proven to reduce calcification, degradation, inflammation of the biomaterial. Evaluations of the crosslinked bovine pericardial included histological and ultrastructural characterization, biomechanical performance, biocompatibility and structural stability test, and in vivo anti-inflammation and anti-calcification assay by subcutaneous implantation in juvenile Sprague Dawley rats. The results revealed that the hybrid crosslinked bovine pericardial were superior to Glut crosslinked biomaterial in terms of better hydrophilicity, thermodynamics stability, hemocompatibility and cytocompatibility, higher Young’s Modulus, better stability and resistance to enzymatic hydrolysis, and lower inflammation, degradation and calcification levels in subcutaneous implants. Considering all above performances, it indicates that the hybrid cross-linking method is appropriate to replace Glut as the method for BHV preparation, and particularly this hybrid crosslinked biomaterials may be a promising candidate for next-generation BHVs.
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Affiliation(s)
- Yuhong Liu
- Department of Cardiovascular Surgery, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China
- Engineering Laboratory of Human Province for Cardiovascular Biomaterials, Changsha, Hunan, China
| | - Zhongshi Wu
- Department of Cardiovascular Surgery, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China
- Engineering Laboratory of Human Province for Cardiovascular Biomaterials, Changsha, Hunan, China
| | - Chunyang Chen
- Department of Cardiovascular Surgery, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Ting Lu
- Department of Cardiovascular Surgery, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Mingzhe Song
- Department of Cardiovascular Surgery, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Xiaoke Qi
- Department of Cardiovascular Surgery, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Zhenlin Jiang
- Department of Cardiovascular Surgery, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Sixi Liu
- Department of Cardiovascular Surgery, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China
- Engineering Laboratory of Human Province for Cardiovascular Biomaterials, Changsha, Hunan, China
| | - Zhenjie Tang
- Department of Cardiovascular Surgery, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China
- Engineering Laboratory of Human Province for Cardiovascular Biomaterials, Changsha, Hunan, China
- *Correspondence: Zhenjie Tang,
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Qi X, Jiang Z, Song M, Tang Z, Xie X, Liu Y, Wu Q, Wu Z. A Novel Crosslinking Method for Improving the Anti-Calcification Ability and Extracellular Matrix Stability in Transcatheter Heart Valves. Front Bioeng Biotechnol 2022; 10:909771. [PMID: 35903798 PMCID: PMC9315440 DOI: 10.3389/fbioe.2022.909771] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Accepted: 06/08/2022] [Indexed: 12/12/2022] Open
Abstract
More than 200,000 patients with aortic diseases worldwide undergo surgical valve replacement each year, and transcatheter heart valves (THV) have been more widely used than ever before. However, THV made by the glutaraldehyde (Glut) crosslinking method has the disadvantage of being prone to calcification, which significantly reduces the durability of biomaterials. In this study, we applied a novel crosslinking method using ribose in THV for the first time, which can decrease calcification and increase the stability of the extracellular matrix (ECM). We incubated the bovine pericardium (BP) in ribose solution at 37°C by shaking for 12 days and confirmed that the structure of the BP was more compact than that of the Glut group. Moreover, the ribose method remarkably enhanced the biomechanical properties and provided reliable resistance to enzymatic degradation and satisfactory cellular compatibility in THV. When the BP was implanted subcutaneously in vivo, we demonstrated that ECM components were preserved more completely, especially in elastin, and the immune-inflammatory response was more moderate than that in the Glut treatment group. Finally, the ribose-cross-linked materials showed better anti-calcification potential and improved durability of THV than Glut-cross-linked materials.
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Kostyunin AE, Glushkova TV, Shishkova DK, Markova VE, Ovcharenko EA. [Screening analysis of proteolytic enzymes and their inhibitors in the leaflets of epoxy-treated bioprosthetic heart valves explanted due to dysfunction]. BIOMEDITSINSKAIA KHIMIIA 2022; 68:68-75. [PMID: 35221298 DOI: 10.18097/pbmc20226801068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Bioprosthetic heart valves (BHVs) are known for their lower thrombogenicity rates and excellent hemodynamic parameters similar to native valves. However, the lifespan of these medical devices is limited to 15 years due to the structural valve degeneration. One of the mechanisms underlying functional impairment and calcification of BHVs includes proteolytic degradation of biomaterials. However, proteases found in xenogeneic BHVs tissue remain poorly studied. In this study using the dot blot assay, we have performed a screening analysis of proteolytic enzymes and their inhibitors in the leaflets of five BHVs explanted due to their dysfunction. Five aortic valves (AVs) explanted due to calcific aortic valve disease were studied as a comparison group. The results of the study have demonstrated that at least 17 proteases and 19 of their inhibitors can be found in BHVs. In the AVs 20 proteases and 21 their inhibitors were identified. Small quantitative differences were noted between proteomic profiles of the BHVs and AVs. Matrix metalloproteinases (MMPs) were expressed in BHVs and AVs at comparable levels, but the level of tissue inhibitors of metalloproteinases-1/-2 and RECK protein in implant tissues was lower than in natural valves. Probably, excessive activity of MMPs cannot be counterbalanced by their inhibitors in BHVs and therefore MMPs can degrade prosthetic biomaterial. Moreover, the detection of a wide range of proteolytic enzymes and their inhibitors in the degenerated BHVs suggests the existence of several pathophysiological pathways that can lead to structural valve degeneration.
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Affiliation(s)
- A E Kostyunin
- Research Institute for Complex Issues of Cardiovascular Diseases, Kemerovo, Russia
| | - T V Glushkova
- Research Institute for Complex Issues of Cardiovascular Diseases, Kemerovo, Russia
| | - D K Shishkova
- Research Institute for Complex Issues of Cardiovascular Diseases, Kemerovo, Russia
| | - V E Markova
- Research Institute for Complex Issues of Cardiovascular Diseases, Kemerovo, Russia
| | - E A Ovcharenko
- Research Institute for Complex Issues of Cardiovascular Diseases, Kemerovo, Russia
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Hu M, Peng X, Yue L, Ding H, Yu X, Wan C, Cheng C, Yu X. A Well-Designed Two-Fold Crosslinked Biological Valve Leaflets with Heparin-Loaded Hydrogel Coating for Enhancing Anticoagulation, Endothelialization, and Anticalcification. Biomater Sci 2022; 10:5535-5551. [DOI: 10.1039/d2bm00736c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Commercial biological valve leaflets (BVLs) crosslinked with Glutaraldehyde (GA) are at risk of accelerating damage and even failure, owing to high cell toxicity of GA, acute thrombosis, and calcification in...
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Immobilized Bisphosphonates as Potential Inhibitors of Bioprosthetic Calcification: Effects on Various Xenogeneic Cardiovascular Tissues. Biomedicines 2021; 10:biomedicines10010065. [PMID: 35052745 PMCID: PMC8773418 DOI: 10.3390/biomedicines10010065] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Revised: 12/20/2021] [Accepted: 12/27/2021] [Indexed: 11/20/2022] Open
Abstract
Calcification is the major factor limiting the clinical use of bioprostheses. It may be prevented by the immobilization of bisphosphonic compounds (BPs) on the biomaterial. In this study, we assessed the accumulation and structure of calcium phosphate deposits in collagen-rich bovine pericardium (Pe) and elastin-rich porcine aortic wall (Ao) and bovine jugular vein wall (Ve) cross-linked with glutaraldehyde (GA) or diepoxy compound (DE). These tissues were then modified with pamidronic (PAM) acid or 2-(2′-carboxyethylamino)ethylidene-1,1-bisphosphonic (CEABA) acid. Tissue transformations were studied using Fourier-transform infrared spectroscopy. After subcutaneous implantation of the biomaterials in 220 rats, calcification dynamics were examined using atomic absorption spectrophotometry, light microscopy after von Kossa staining, and scanning electron microscopy coupled with energy-dispersive X-ray spectroscopy The calcium content in all GA-cross-linked tissues and DE-cross-linked Ao increased to 100–160 mg/g on day 60 after implantation. BPs prevented the accumulation of phosphates on the surface of all materials and most effectively inhibited calcification in GA-cross-linked Ao and DE-cross-linked Pe. PAM containing -OH in the R1 group was more effective than CEABA containing -H in R1. The calcification-inhibitory effect of BPs may be realized through their ability to block nucleation and prevent the growth of hydroxyapatite crystals.
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Bondarenko NA, Surovtseva MA, Lykov AP, Kim II, Zhuravleva IY, Poveschenko OV. Cytotoxicity of Xenogeneic Pericardium Preserved by Epoxy Cross-Linking Agents. Sovrem Tekhnologii Med 2021; 13:27-33. [PMID: 34603761 PMCID: PMC8482832 DOI: 10.17691/stm2021.13.4.03] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Indexed: 11/14/2022] Open
Abstract
The aim of the study was to assess the cytotoxic effect of xenopericardial biomaterial treated with di- and pentaepoxides on the cell cultures in vitro. Materials and Methods Samples of bovine and porcine pericardium were used in the work. Three different modes were employed for preservation: 1) 0.625% solution of glutaraldehyde (GA) and a two-fold change on days 2 and 7; 2) 5% solution of ethylene glycol diglycidyl ether (EGDE) changed on day 2; 3) 5% EGDE solution for 10 days, then 2% pentaepoxide solution also for 10 days. The cytotoxicity of the biomaterial was assessed by the extraction method. To determine the cytotoxicity of the biomaterial, EA.hy926 cells, multipotent mesenchymal stem cells (MMSCs), and fibroblasts were used. Cell viability was determined by the MTT test. The level of apoptosis and necrosis in the cell cultures was assessed by staining with acridine orange and ethidium bromide after cultivation with xenopericardial extracts employing different modes of preservation. Results Extracts of bovine and porcine pericardium preserved with GA have been found to have the greatest toxic effect on the cell cultures showing 20-33% reduction of cell viability. Extracts from bovine and porcine pericardium preserved with di- and pentaepoxy compounds do not have a toxic effect on endothelial cells, MMSCs, and fibroblasts since cell viability reduction is by no more than 15%. The lowest level of apoptosis and necrosis is observed in the cell cultures under the influence of extracts from the pericardium, preserved with diepoxide and pentaepoxide compounds. Conclusion According to the MTT test for cytotoxicity and determination of the level of apoptosis and necrosis in cell cultures, bovine and porcine pericardia treated with di- and pentaepoxides have been established to have no cytotoxic effect on the culture of endothelial EA.hy926 cells, MMSCs, fibroblasts in vitro, whereas GA, in comparison with di- and pentaepoxides, has a toxic impact on the cells.
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Affiliation(s)
- N A Bondarenko
- Researcher, Cell Technology Laboratory; Research Institute of Clinical and Experimental Lymphology - Branch of the Federal Research Center Institute of Cytology and Genetics, Siberian Branch of Russian Academy of Sciences, 2 Timakova St., Novosibirsk, 630117, Russia; Senior Researcher, Cell Technology Laboratory, Institute of Experimental Biology and Medicine; Meshalkin National Medical Research Center, Ministry of Health of the Russian Federation, 15 Rechkunovskaya St., Novosibirsk, 630055, Russia
| | - M A Surovtseva
- Senior Researcher, Cell Technology Laboratory; Research Institute of Clinical and Experimental Lymphology - Branch of the Federal Research Center Institute of Cytology and Genetics, Siberian Branch of Russian Academy of Sciences, 2 Timakova St., Novosibirsk, 630117, Russia; Senior Researcher, Cell Technology Laboratory, Institute of Experimental Biology and Medicine; Meshalkin National Medical Research Center, Ministry of Health of the Russian Federation, 15 Rechkunovskaya St., Novosibirsk, 630055, Russia
| | - A P Lykov
- Leading Researcher, Cell Technology Laboratory; Research Institute of Clinical and Experimental Lymphology - Branch of the Federal Research Center Institute of Cytology and Genetics, Siberian Branch of Russian Academy of Sciences, 2 Timakova St., Novosibirsk, 630117, Russia; Senior Researcher, Cell Technology Laboratory, Institute of Experimental Biology and Medicine; Meshalkin National Medical Research Center, Ministry of Health of the Russian Federation, 15 Rechkunovskaya St., Novosibirsk, 630055, Russia
| | - I I Kim
- Researcher, Cell Technology Laboratory; Research Institute of Clinical and Experimental Lymphology - Branch of the Federal Research Center Institute of Cytology and Genetics, Siberian Branch of Russian Academy of Sciences, 2 Timakova St., Novosibirsk, 630117, Russia; Senior Researcher, Cell Technology Laboratory, Institute of Experimental Biology and Medicine; Meshalkin National Medical Research Center, Ministry of Health of the Russian Federation, 15 Rechkunovskaya St., Novosibirsk, 630055, Russia
| | - I Yu Zhuravleva
- Professor, Director of the Institute of Experimental Biology and Medicine; Meshalkin National Medical Research Center, Ministry of Health of the Russian Federation, 15 Rechkunovskaya St., Novosibirsk, 630055, Russia
| | - O V Poveschenko
- Head of the Cell Technology Laboratory; Research Institute of Clinical and Experimental Lymphology - Branch of the Federal Research Center Institute of Cytology and Genetics, Siberian Branch of Russian Academy of Sciences, 2 Timakova St., Novosibirsk, 630117, Russia; Head of the Cell Technology Laboratory, Institute of Experimental Biology and Medicine; Meshalkin National Medical Research Center, Ministry of Health of the Russian Federation, 15 Rechkunovskaya St., Novosibirsk, 630055, Russia
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