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Related Concept Videos

Introduction to Fibroblasts01:09

Introduction to Fibroblasts

Rudolph Virchow discovered spindle-shaped cells called fibroblasts in 1858. Inactive fibroblasts, called fibrocytes, become activated by various stimuli, such as growth factors and inflammatory cytokines. Activated fibroblasts play a crucial role in wound healing, inflammation, formation of new blood vessels, and cancer progression. Uncontrolled activation of fibroblasts results in fibrosis, the excess deposition of fibrous tissue, which can lead to scarring and affect normal organs. This...

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Platelet-Derived Extracellular Vesicle Functionalization of Ti Implants
04:16

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Published on: August 5, 2021

Fibroblast behavior after titanium surfaces exposure.

Matteo Danza1, Ilaria Zollino, Valentina Candotto

  • 1Department of Oral Science, Nano and Biotechnologies, University of Chieti, Chieti, Italy.

Dental Research Journal
|July 2, 2013
PubMed
Summary
This summary is machine-generated.

This study found that neither titanium alloy (AoN 4GR or AoN 5GR) significantly enhanced cell adhesion or stress resistance in human fibroblasts. Further research is needed to develop improved dental implant materials.

Keywords:
Cell adhesiongene expressiontitanium alloys

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Area of Science:

  • Biomaterials Science
  • Tissue Engineering
  • Dental Implantology

Background:

  • Biocompatible scaffolds are crucial for promoting bone precursor cell attraction, adhesion, proliferation, and differentiation.
  • Titanium is a widely used material in dental implants due to its biocompatibility and corrosion resistance.

Purpose of the Study:

  • To compare the osteoconductive potential of two different titanium alloy (AoN) layers, GR4 and GR5.
  • To evaluate the effect of these titanium layers on human fibroblast gene expression related to cell adhesion and stress resistance.

Main Methods:

  • Human fibroblasts (HFb) were cultured on two types of AoN titanium layers (GR4 and GR5).
  • Gene expression analysis of adhesion and traction-resistance related genes (COL11A1, COL2A1, COL9A1, DSP, ELN, HAS1, TFRC) was performed using real-time RT-PCR at two time points.

Main Results:

  • After 7 days, only COL2A1 and DSP gene expression was upregulated with TiA 4GR treatment.
  • After 15 days, no significant gene overexpression was observed for either titanium alloy.

Conclusions:

  • Neither AoN 4GR nor AoN 5GR demonstrated the ability to promote proteins essential for cell-cell and cell-matrix adhesion.
  • The tested titanium alloys did not appear to enhance stress-resistance in human fibroblasts, suggesting limitations for dental implant applications.