PMID: 9423715Jan 10, 1998Paper

Reduced growth of dermal fibroblasts from chronic venous ulcers can be stimulated with growth factors

Journal of Vascular Surgery
A StanleyJ O Menzoian

Abstract

Although the slow healing rate of venous ulcers is well known, the underlying defect in the healing process is not well understood. The purpose of this study was to examine the cellular characteristics of fibroblasts taken from venous ulcers (wound-fb) and compare them with the fibroblasts of normal tissue (normal-fb). Biopsy specimens were obtained from wound margins and normal tissue of the upper thigh in each patient. Dermal fibroblasts were isolated from explant cultures in Dulbecco's modified Eagle's medium supplemented with 10% calf serum. These cells were then plated at 1000 cells per plate, and total cells per plate were counted over time so that growth curves could be generated. In further experimentation, media was supplemented with additional calf serum (20%, 30%, 40%, 50%) and growth factors (epidermal growth factor, basic fibroblast growth factor, interleukin-1 beta) in an attempt to stimulate growth. Two major differences were noted: (1) normal-fb replicated more rapidly than wound-fb; and (2) the morphologic features of wound-fb were different. Normal-fb were compact and tapered, with well-defined nuclear morphologic features. Wound-fb were larger and polygonal in shape, with less-uniform nuclear morphologic feat...Continue Reading

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