Fibronectin fragmentation is a feature of periodontal disease sites and diabetic foot and leg wounds and modifies cell behavior

Corey M. Stanley, Yao Wang, Sanjay Pal, Robert J. Klebe, Lawrence B. Harkless, Xiaoping Xu, Zhihua Chen, Bjorn Steffensen

Research output: Contribution to journalArticle

33 Citations (Scopus)

Abstract

Background: Fibronectin (FN) undergoes fragmentation in periodontal disease sites and in poorly healing diabetic wounds. The biologic effects of FN fragments on wound healing remain unresolved. This study characterized the pattern of FN fragmentation and its effects on cellular behavior compared to intact FN. Methods: Polyclonal antibodies were raised against FN and three defined recombinant segments of FN and used to analyze gingival crevicular fluid from periodontal disease sites in systemically healthy subjects and in subjects with diabetes, as well as chronic leg and foot wound exudates from subjects with diabetes. Subsequently, the behavior of human gingival fibroblasts (hGFs) and HT1080 reference cells were analyzed by measuring cell attachment, migration, and Chemotaxis in the presence of intact FN or recombinant FN fragments. Results: FN fragmentation was evident in fluids from periodontal disease sites and diabetic leg and foot wounds. However, no fragmentation pattern distinguished systemically healthy subjects from subjects with diabetes. hGFs and HT1080 cells required significantly higher concentrations of FN fragments to achieve attachment comparable to intact FN. Cells cultured on FN fragments also were morphologically different from cells cultured on full-length FN. Migration was reduced for hGFs cultured on FN fragments relative to full-length FN. In contrast, FN fragments increased HT1080 fibro-sarcoma cell migration over intact FN. Conclusions: FN fragmentation is a prominent feature of periodontal and chronic leg and foot wounds in diabetes. Furthermore, cell culture assays confirmed the hypothesis that exposure to defined FN fragments significantly alters cell be havior.

Original languageEnglish (US)
Pages (from-to)861-875
Number of pages15
JournalJournal of Periodontology
Volume79
Issue number5
DOIs
StatePublished - May 2008

Fingerprint

Diabetic Foot
Periodontal Diseases
Fibronectins
Leg
Wounds and Injuries
Fibroblasts
Wound Healing
Cell Movement
Foot
Cultured Cells
Healthy Volunteers
Gingival Crevicular Fluid

Keywords

  • Cell behavior
  • Diabetes
  • Fibronectin
  • Periodontal disease
  • Proteolysis
  • Wound healing

ASJC Scopus subject areas

  • Dentistry(all)

Cite this

Fibronectin fragmentation is a feature of periodontal disease sites and diabetic foot and leg wounds and modifies cell behavior. / Stanley, Corey M.; Wang, Yao; Pal, Sanjay; Klebe, Robert J.; Harkless, Lawrence B.; Xu, Xiaoping; Chen, Zhihua; Steffensen, Bjorn.

In: Journal of Periodontology, Vol. 79, No. 5, 05.2008, p. 861-875.

Research output: Contribution to journalArticle

Stanley, Corey M. ; Wang, Yao ; Pal, Sanjay ; Klebe, Robert J. ; Harkless, Lawrence B. ; Xu, Xiaoping ; Chen, Zhihua ; Steffensen, Bjorn. / Fibronectin fragmentation is a feature of periodontal disease sites and diabetic foot and leg wounds and modifies cell behavior. In: Journal of Periodontology. 2008 ; Vol. 79, No. 5. pp. 861-875.
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