Guided Tissue Regeneration of Vascular Grafts in the Peritoneal Cavity
2002; Lippincott Williams & Wilkins; Volume: 90; Issue: 8 Linguagem: Inglês
10.1161/01.res.0000017729.02720.6f
ISSN1524-4571
AutoresSerghei Cebotari, Heike Walles, Sajoscha Sorrentino, Axel Haverich, Heike Mertsching,
Tópico(s)Aortic Disease and Treatment Approaches
ResumoHomeCirculation ResearchVol. 90, No. 8Guided Tissue Regeneration of Vascular Grafts in the Peritoneal Cavity Free AccessLetterPDF/EPUBAboutView PDFView EPUBSections ToolsAdd to favoritesDownload citationsTrack citationsPermissions ShareShare onFacebookTwitterLinked InMendeleyReddit Jump toFree AccessLetterPDF/EPUBGuided Tissue Regeneration of Vascular Grafts in the Peritoneal Cavity S. Cebotari T. Walles S. Sorrentino A. Haverich H. Mertsching S. CebotariS. Cebotari Leibniz Institute for Biotechnology and, Artificial Organs (LEBAO), Hannover, Germany, T. WallesT. Walles Division of Thoracic and, Cardiovascular Surgery, Hannover Medical School, Hannover, Germany S. SorrentinoS. Sorrentino LEBAO, Hannover, Germany A. HaverichA. Haverich Division of Thoracic and, Cardiovascular Surgery, Hannover Medical School, Hannover, Germany H. MertschingH. Mertsching LEBAO, Hannover, Germany Originally published3 May 2002https://doi.org/10.1161/01.RES.0000017729.02720.6FCirculation Research. 2002;90:e71To the Editor:Tissue engineering represents an upcoming alternative source for vascular substitutes to create viable and biologically active grafts. Two different concepts are followed: grafts are either reseeded in vitro before implantation (tissue engineering)1 or the scaffolds are implanted as acellular matrices for intrinsic reseeding in vivo (guided tissue regeneration).2,3 The scaffold matrices are fashioned from natural materials or synthetic polymers.4,5 Despite considerable clinical research, no biological or synthetic grafts have been produced so far as an ideal substitute for a small-diameter artery.5,6Recently, our group focused research on the creation of bioartificial blood vessel grafts. Therefore, we read with interest the study in Circulation Research by Campbell et al7 on the creation of an "artificial blood conduit . . . from the cells of the host for autologous transplantation" (page 1173) in the peritoneal cavity: Silastic tubes implanted into the peritoneal cavity of rat and rabbit became completely encased into granulation tissue by 2 weeks. Histology revealed this myofibroblast capsule to be covered with a single layer of mesothelium, which formed the inner surface of the "designer" (page 1174) artery after the silastic tubing was removed and the capsule was everted. Implantation into the hosts showed impressive patency rates after 4 months of follow-up. Furthermore, the grafts showed 10% to 20% contractility of host aortas in organ bath experiments. The authors hypothesize that after implantation the " mesothelium is sloughed off the grafts and replaced by local endothelium" (page 1177) and stated that the "source of the lining cells was not considered essential information" (page 1177).Stimulated by their data, we applied their principle to create bioartificial vessels, but using a decellularized allogenic vascular scaffold.8 We also found a repopulation of our implanted graft scaffolds in the given time period. In contrast to Campbell et al,7 we tried to characterize the inner lining of our artificial graft by immunohistology and biological cell metabolism. The supposed endothelial cells stained positive for CD31 and CD18, two specific markers for leukocytes.9 Additionally, reseeded cells were isolated from the scaffold and functionally characterized for specific endothelial cell metabolism by acetylated LDL uptake measurement.10 Less than 5% of isolated cells responded positively.In the study of Campbell et al,7 the cells covering the surface of silastic tubes stained positive for von Willebrand factor and were characterized by the authors as mesothelial (endothelial-like) cells. Considering our data, we suppose that they documented a typical inflammatory reaction to the foreign body, and the cells present on the silastic tube surface are in fact inflammatory cells and do not carry a typical endothelial function.Like the Campbell group, we were able to detect preserved collagen and elastic fibers. However, von Kossa staining revealed denaturation of the collagen fibers inside the matrix and multiple areas of calcification after 21 days, indicating graft degeneration.11Important determinants for long-term function of tissue-engineered cardiovascular grafts are cell types, cell density, and the preservation and remodeling of extracellular matrix components.11 The endothelium as inner lining of biological vessels plays a key role in physiological vessel function. Campbell et al7 proposed the attractive idea of creating an autologous vascular graft in the peritoneal cavity. However, they fail to characterize the cells seeding their synthetic scaffold and forming their "artificial artery" (page 1177). Our results demonstrate the absence of endothelial function. Moreover, we show first evidence of graft degeneration 3 weeks after implantation.Hence, we are convinced that the peritoneal cavity is no feasible environment for growing functional bioartificial vascular grafts.1 Mertsching H, Leyh R, Rebe P, et al. Tissue engineering of autologous heart valves: results of 3, 6 and 9 months implantation in a growing sheep model. Paper presented at: EACTS/ESTS Joint Meeting; September 16–19, 2001; Lisbon, Portugal.Google Scholar2 O'Brien MF, Goldstein S, Walsh S, Black KS, Elkins R, Clarke D. The SynerGraft Valve: a new acellular (nonglutaraldehyde-fixed) tissue heart valve for autologous recellularization first experimental studies before clinical implantation. Semin Thorac Cardiovasc Surg. 1999; 11 (4 suppl I): 194–200.CrossrefGoogle Scholar3 Schmidt CE, Baier JM. Acellular vascular tissue: natural biomaterials for tissue repair and tissue engineering. Biomaterials. 2000; 21: 2215–2231.CrossrefMedlineGoogle Scholar4 Hubbell JA. Bioactive biomaterials. Curr Opin Biotechnol. 1999; 10: 123–129.CrossrefMedlineGoogle Scholar5 Nerem RM, Seliktar D. Vascular tissue engineering. Annu Rev Biomed Eng. 2001; 3: 225–243.CrossrefMedlineGoogle Scholar6 Barner HB. Arterial grafting: techniques and conduits. Ann Thorac Surg. 1998; 66 (suppl. 5): 2–5.CrossrefMedlineGoogle Scholar7 Campbell JH, Efendy JL, Campbell GR. Novel vascular graft grown within recipient's own peritoneal cavity. Circ Res. 1999; 85: 1173–1178.CrossrefMedlineGoogle Scholar8 Cebotari S, Walles T, Sorrentino S, Haverich A, Mertsching H. Cellular characteristics of vascular grafts reseeded in the peritoneal cavity. Presented at XIVth World Congress of Cardiology, May 5–9, 2002, Sydney, Australia, and published in Congress supplement of J Am Coll Cardiol.Google Scholar9 Ugarova TP, Yakubenko VP. Recognition of fibrinogen by leukocyte integrins. Ann N Y Acad Sci. 2001; 936: 368–385.CrossrefMedlineGoogle Scholar10 Hoffmann J, Haendeler J, Zeiher AM, Dimmeler S. TNFα and oxLDL reduce protein S-nitrosylation in endothelial cells. J Biol Chem. 2001; 276: 41383–41387.CrossrefMedlineGoogle Scholar11 Schoen FJ, Levy RJ. Tissue heart valves: current challenges and future research perspectives. J Biomed Mater Res. 1999; 47: 439–465.CrossrefMedlineGoogle Scholar Previous Back to top Next FiguresReferencesRelatedDetailsCited By Sugimura Y, Lichtenberg A, Assmann A and Akhyari P (2020) Verbesserte Biokompatibilität von dezellularisierten Gefäßimplantaten mit "stromal cell-derived factor 1α"Improved biocompatibility of decellularized vascular implants with stromal cell-derived factor 1α, Zeitschrift für Herz-,Thorax- und Gefäßchirurgie, 10.1007/s00398-020-00386-y, 34:5, (320-326), Online publication date: 1-Oct-2020. Sugimura Y, Schmidt A, Lichtenberg A, Assmann A and Akhyari P (2017) A Rat Model for the In Vivo Assessment of Biological and Tissue-Engineered Valvular and Vascular Grafts , Tissue Engineering Part C: Methods, 10.1089/ten.tec.2017.0215, 23:12, (982-994), Online publication date: 1-Dec-2017. Akhyari P, Minol P, Assmann A, Barth M, Kamiya H and Lichtenberg A (2011) Tissue Engineering von HerzklappenTissue engineering of heart valves, Der Chirurg, 10.1007/s00104-010-2031-2, 82:4, (311-318), Online publication date: 1-Apr-2011. Cebotari S, Tudorache I, Schilling T and Haverich A (2010) Tissue Engineering von Herzklappen und MyokardHeart valve and myocardial tissue engineering, Herz, 10.1007/s00059-010-3355-x, 35:5, (334-341), Online publication date: 1-Aug-2010. Byrom M, Bannon P, White G and Ng M (2010) Animal models for the assessment of novel vascular conduits, Journal of Vascular Surgery, 10.1016/j.jvs.2009.10.080, 52:1, (176-195), Online publication date: 1-Jul-2010. 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Herrick S and Mutsaers S (2004) Mesothelial progenitor cells and their potential in tissue engineering, The International Journal of Biochemistry & Cell Biology, 10.1016/j.biocel.2003.11.002, 36:4, (621-642), Online publication date: 1-Apr-2004. Rashid S, Salacinski H, Hamilton G and Seifalian A (2004) The use of animal models in developing the discipline of cardiovascular tissue engineering: a review, Biomaterials, 10.1016/S0142-9612(03)00522-2, 25:9, (1627-1637), Online publication date: 1-Apr-2004. Moldovan N and Havemann K (2002) Transdifferentiation, a Potential Mechanism for Covering Vascular Grafts Grown Within Recipient's Peritoneal Cavity With Endothelial-Like Cells, Circulation Research, 91:3, (e1-e1), Online publication date: 9-Aug-2002. May 3, 2002Vol 90, Issue 8 Advertisement Article InformationMetrics https://doi.org/10.1161/01.RES.0000017729.02720.6FPMID: 11988496 Originally publishedMay 3, 2002 PDF download Advertisement
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