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Related Concept Videos

Mesenchymal Stem Cells01:19

Mesenchymal Stem Cells

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Mesenchymal stem cells (MSCs) are adult stem cells that can differentiate into most connective tissue cell types, except for hematopoietic cells, depending upon the source of MSCs. For example, bone-marrow-derived MSCs (BM-MSCs) can differentiate into osteocytes, hepatocytes, and pancreatic and neuronal cells. MSCs can be isolated from various sources such as bone marrow, placenta, adipose tissue, teeth, and Wharton’s jelly, a gelatinous substance in the umbilical cord. The ease of their...
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Isolation of Human Mesenchymal Stem Cells and their Cultivation on the Porous Bone Matrix
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Human Mesenchymal Stem Cell Morphology and Migration on Microtextured Titanium.

Brittany L Banik1, Thomas R Riley2, Christina J Platt3

  • 1Musculoskeletal Regenerative Engineering Laboratory, Department of Biomedical Engineering, The Pennsylvania State University , University Park, PA , USA.

Frontiers in Bioengineering and Biotechnology
|June 1, 2016
PubMed
Summary

Microtextured titanium implants enhance spinal fusion by promoting mesenchymal stem cell (MSC) adhesion, proliferation, and osteogenic differentiation more effectively than PEEK or smooth titanium. Acid-etched titanium surfaces yielded the best results for bone healing and implant integration.

Keywords:
PEEKcell–material interactionsregenerative medicinespinal implanttitanium (alloys)

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Area of Science:

  • Biomaterials Science
  • Orthopedic Surgery
  • Cell Biology

Background:

  • Spinal fusion relies on implants to integrate bone.
  • Mesenchymal stem cells (MSCs) are crucial for bone healing and implant osseointegration.
  • Microtextured titanium shows promise for bone integration compared to smooth titanium and PEEK.

Purpose of the Study:

  • To evaluate the early cellular response of MSCs on microtextured titanium, smooth titanium, and PEEK surfaces.
  • To compare MSC morphology, migration, and differentiation on different implant materials.
  • To determine the optimal implant surface for spinal fusion procedures.

Main Methods:

  • Assessed MSC morphology and spreading over 24 hours.
  • Quantified MSC migration rate and directionality from 6 to 18 hours.
  • Measured osteogenic differentiation markers at 10 days.
  • Evaluated long-term MSC morphology at 7 days.

Main Results:

  • Both titanium surfaces outperformed PEEK in all measured metrics.
  • Microtextured, acid-etched titanium demonstrated superior MSC adhesion, proliferation, and osteogenic differentiation.
  • The acid-etched titanium surface promoted random MSC migration essential for surface coverage.
  • MSC morphology on acid-etched titanium was consistent with osteoblasts and preosteoblasts.

Conclusions:

  • Microtextured titanium, particularly acid-etched surfaces, significantly enhances cellular responses critical for spinal fusion.
  • Acid-etched titanium offers superior biocompatibility and osteointegration potential compared to PEEK and smooth titanium.
  • These findings support the use of microtextured titanium implants for improved spinal fusion outcomes.