Control Delivery of Multiple Growth Factors to Actively Steer Differentiation and Extracellular Matrix Protein Production

Febriyani F. R. Damanik, Niels Verkoelen, Clemens van Blitterswijk, Joris Rotmans, Lorenzo Moroni*

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

2 Citations (Web of Science)

Abstract

In tissue engineering, biomaterials have been used to steer the host response. This determines the outcome of tissue regeneration, which is modulated by multiple growth factors (GFs). Hence, a sustainable delivery system for GFs is necessary to control tissue regeneration actively. A delivery technique of single and multiple GF combinations, using a layer-by-layer (LBL) procedure to improve tissue remodeling, is developed. TGF-beta 1, PDGF-beta beta, and IGF-1 are incorporated on tailor-made polymeric rods, which could be used as a tool for potential tissue engineering applications, such as templates to induce the formation of in situ tissue engineered blood vessels (TEBVs). Cell response is analyzed in vitro using rat and human dermal fibroblasts for cellular proliferation, fibroblast differentiation, and extracellular matrix (ECM) protein synthesis. Results revealed a higher loading efficiency and control release of GFs incorporated on chloroform and oxygen plasma-activated (COX) rods. Single PDGF-beta beta and IGF-1 release, and dual release with TGF-beta 1 from COX rods, showed higher cell proliferation when compared to COX rods alone. A substantial increase in alpha -smooth muscle actin (alpha -SMA) is also observed in GF releasing COX rods, with TGF-beta 1 COX rods providing the most pronounced differentiation. A significant increase in collagen and elastin synthesis is observed on all GF releasing COX rods compared to control, with COX rods releasing TGF-beta 1 and IGF-1 providing the highest secretion. TGF-beta 1 and IGF-1 releasing COX rods induced higher Glycosaminoglycan (GAG)/DNA amounts than the other GF releasing COX rods. As PDGF-beta beta and TGF-beta 1/PDGF-beta beta COX rods displayed the highest fibroblast attachment, these rods provided the highest total collagen and elastin production. The attractive results from efficiently incorporating single and multiple GFs on COX rods and their sustainable release to steer cellular behavior suggest a promising route to enrich the formation of in situ engineered tissues.

Original languageEnglish
Article number2000205
Number of pages12
JournalAdvanced Biology
Volume5
Issue number4
DOIs
Publication statusPublished - Apr 2021

Keywords

  • foreign body responses
  • growth factors
  • layer-by-layer coating
  • polyelectrolytes
  • LATENT TRANSFORMING GROWTH-FACTOR-BETA-1
  • POROUS CACO3 MICROPARTICLES
  • HUMAN SKIN FIBROBLASTS
  • FACTOR-BETA
  • IN-VITRO
  • DERMAL FIBROBLASTS
  • SIGNALING PATHWAY
  • PROLIFERATION
  • TGF-BETA-1
  • VIVO

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