Changes in lipid metabolism and cell morphology following attack by phospholipase C (Clostridium perfringens) on red cells or lymphocytes

Research output: Contribution to journalArticlepeer-review

Authors

Colleges, School and Institutes

External organisations

  • Department of Biochemistry
  • Birmingham University

Abstract

When intact human erythrocytes were treated with phospholipase C (Clostridium perfringens), up to 30% of the membrane phospholipids were broken down without significant cell lysis. Only phosphatidylcholine and sphingomyelin were attacked. Ceramide (derived from sphingomyelin) accumulated, but 1,2-diacylglycerol (derived from phosphatidylcholine) was largely converted into phosphatidate. Up to 12% of the cell phospholipid could be converted into phosphatidate in this way. Pig erythrocytes and lymphocytes showed a similar but smaller synthesis of phosphatidate after phospholipase C attack. Phospholipase C also caused a marked morphological change in erythrocytes, giving rise to spherical cells containing internal membrane vesicles. This change appeared to be due to ceramide and diacylglycerol accumulation rather than to increased phosphatidate content of the cells.

Details

Original languageEnglish
Pages (from-to)309-316
Number of pages8
JournalBBA - Biomembranes
Volume413
Issue number2
Publication statusPublished - 1 Dec 1975

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