Viable fibroblast matrix patch induces angiogenesis and increases myocardial blood flow in heart failure after myocardial infarction

Jordan Lancaster, Elizabeth Juneman, Tracy Hagerty, Rose Do, Michael Hicks, Kate Meltzer, Paul Standley, Mohamed Gaballa, Robert Kellar, Steven Goldman, Hoang Thai

Research output: Contribution to journalArticlepeer-review

16 Scopus citations

Abstract

Background: This study examines a viable biodegradable three-dimensional fibroblast construct (3DFC) in a model of chronic heart failure. The viable fibroblasts, cultured on a vicryl mesh, secrete growth factors that stimulate angiogenesis. Methods: We ligated the left coronary artery of male Sprague-Dawley rats, implanted the 3DFC 3 weeks after myocardial infarction and obtained end point data 3 weeks later, that is, 6 weeks after myocardial infarction. Results: Implanting the 3DFC increases (p<0.05) myocardial blood flow twofold, microvessel formation (0.02±0.01 vs. 0.07±0.03 vessels/μm2), and ventricular wall thickness (0.53±0.02 to 1.02±0.17mm). The 3DFC shifts the passive pressure volume loop toward the pressure axis but does not alter left ventricular (LV) ejection fraction, systolic displacement, LV end-diastolic pressure/dimension, or LV cavity area. The 3DFC stimulates selected cytokine activation with a decrease in the proinflammatory cascade and increased total protein content stimulated by strained 3DFC in vitro. Conclusion: The 3DFC functions as a cell delivery device providing matrix support for resident cell survival and integration into the heart. The imbedded fibroblasts of the 3DFC release a complex blend of cardioactive cytokines promoting increases in microvessel density and anterior wall blood flow but does not improve ejection fraction or alter LV remodeling.

Original languageEnglish (US)
Pages (from-to)3065-3073
Number of pages9
JournalTissue Engineering - Part A
Volume16
Issue number10
DOIs
StatePublished - Oct 1 2010

ASJC Scopus subject areas

  • Bioengineering
  • Biochemistry
  • Biomaterials
  • Biomedical Engineering

Fingerprint Dive into the research topics of 'Viable fibroblast matrix patch induces angiogenesis and increases myocardial blood flow in heart failure after myocardial infarction'. Together they form a unique fingerprint.

Cite this