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Increased activity of lymph node cells in experimental thermal injury: changes in accessory cells in injured

M Kataranovski1, T Nikolić, M Velicković

  • 1Institute for Medical Research, Military Medical Academy, Crnotravska, Belgrade, Yugoslavia. vmaimi@EUnet.yu

Burns : Journal of the International Society for Burn Injuries
|June 28, 2000
PubMed

Accessory cell content and some of their functional characteristics were determined in regional lymph nodes which drain burn injury (DLN) in rats. Increase in percentages of non-specific esterase-positive cells and NBT+ macrophages and in numbers of dendritic cells were noted in cytospin preparations of draining lymph node cells (DLC) 24 and 72 h following thermal injury. An accumulation of B cells was also noted in the DLN paracortex region at these time points. Enrichment of ED1+ (rat macrophage marker) cells was noted in the adherent DLC population. Increased activity of interleukin-1 (IL-1) in conditioned medium from adherent DLC population and the increased stimulatory capacity of whole DLC or dendritic cell enriched-DLC fraction were noted in functional assays. Enrichment in accessory cells and an increase in their functional activity could contribute to the endogenous activity of regional lymph nodes which drain burned areas.

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