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International Journal of Pancreatology

, Volume 10, Issue 1, pp 39–49 | Cite as

Influence of anoxia, reoxygenation, and uncoupling on survival, respiration, and Trypsin-Inhibiting capacity of isolated pancreatic acinar cells

  • H. -J. Hass
  • W. Wilhelm
  • P. Kemnitz
  • G. Letko
Article
  • 17 Downloads

Summary

In the pathogenesis of acute pancreatitis, the events and mechanisms increasing the digestibility of the pancreatic acinar cells are widely unknown. Therefore, the possible contribution of a disturbed energy supply (provoked by anoxia or partial uncoupling) to the induction of autodigestion was studied in experiments on acinar cells isolated from the pancreas. During incubation viability, respiration under normal and maximally stimulated conditions, and trypsin-inhibiting capacity (TIC) of these cells were determined.

With increasing duration of anoxia, the portion of surviving cells was strongly diminished, and the number of cells with blebs and vesicularly transformed endoplasmic reticulum was increased. Although the endogenous respiration was not influenced up to 1.5 h of anoxia, 30 min of anoxia substantially decreased the capacity of oxidative energy production.

The survival curves were characterized by a self-accelerating course of cell destruction. The alteration of the cellular energy metabolism found its reflection in the decreased TIC of the cells.

Key Words

Acinar cells isolated anoxia cellular respiration rat trypsininhibiting capacity uncoupling 

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Copyright information

© Humana Press Inc. 1991

Authors and Affiliations

  • H. -J. Hass
    • 1
    • 2
  • W. Wilhelm
    • 1
    • 2
  • P. Kemnitz
    • 1
    • 2
  • G. Letko
    • 1
    • 2
  1. 1.Division of Experimental Surgery of the Clinic of SurgeryMedical Academy of MagdeburgMagdeburgGermany
  2. 2.Institute of Pathological AnatomyMedical Academy of MagdeburgMagdeburgGermany

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