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Stem Cell Reviews and Reports

, Volume 8, Issue 3, pp 854–862 | Cite as

Adipose Derived Stem Cells Protect Skin Flaps Against Ischemia-Reperfusion Injury

  • Matthias A. Reichenberger
  • Sina Heimer
  • Amelia Schaefer
  • Ulrike Lass
  • Martha Maria Gebhard
  • Günter Germann
  • Uwe Leimer
  • Eva Köllensperger
  • Wolf Mueller
Article

Abstract

Background

Advances in the treatment of ischemia- reperfusion injury have created an opportunity for plastic surgeons to apply these treatments to flaps and implanted tissues. We examined the capability of adipose derived stem cells (ADSCs) to protect tissue against IRI using an extended inferior epigastric artery skin flap as a flap ischemia- reperfusion injury (IRI) model.

Methods

ADSCs were isolated from Lewis rats and cultured in vitro. Twenty- four rats were randomly divided into three groups. Group I was the sham group and did not undergo ischemic insult; rather, the flap was raised and immediately sutured back (non-ischemic control group). Group II (ischemia control) and group III (ADSCs treatment) underwent 3 h of ischemic insult. During reperfusion group III was treated by intravenous application of ADSCs and group II was left untreated. Five days postoperatively, flap survival and perfusion were assessed. Microvessel density was visualized by immunohistochemistry and semi- quantitative real-time polymerase chain reaction addressed differential gene expression.

Results

Treatment with ADSCs significantly increased flap survival (p < 0.001) and flap perfusion (p < 0.001) when compared to the control group II. Microvessel- density in ADSCs treated group was not significantly increased in any group. No significant differences showed the comparison of the experimental group III and the sham operated control group I. ADSCs treatment (Group III) was accompanied by a significantly enhanced expression of pro-angiogenic and pro-inflammatory genes.

Conclusion

Overall, our study demonstrates that ADSCs treatment significantly enhances skin flap survival in the aftermath of ischemia to an extent that almost equals surgical results without ischemia. This effect is accompanied with a pronounced and significant angiogenic response and an improved blood perfusion.

Keywords

Shock wave treatment Ischemia- reperfusion injury Skin flap 

Abbreviations

IRI

Ischemia- reperfusion injury

ADSCs

Adipose derived stem cells

PI

Perfusion index

NIR

Near-infrared

Notes

Conflicts of interest

The authors declare no potential conflicts of interest.

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Copyright information

© Springer Science+Business Media, LLC 2012

Authors and Affiliations

  • Matthias A. Reichenberger
    • 1
  • Sina Heimer
    • 1
  • Amelia Schaefer
    • 1
  • Ulrike Lass
    • 2
  • Martha Maria Gebhard
    • 3
  • Günter Germann
    • 1
  • Uwe Leimer
    • 1
  • Eva Köllensperger
    • 1
  • Wolf Mueller
    • 4
  1. 1.ETHIANUM - Clinic for Plastic and Reconstructive SurgeryAesthetic and Preventive Medicine at Heidelberg University HospitalHeidelbergGermany
  2. 2.Clinical Cooperation Unit NeuropathologyGerman Cancer Research CenterHeidelbergGermany
  3. 3.Department of Experimental SurgeryUniversity of HeidelbergHeidelbergGermany
  4. 4.Department of Neuropathology at the Institute for PathologyUniversity of HeidelbergHeidelbergGermany

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