MRCEM Notes

Ciclosporin

Ciclosporin is an immunosuppressant which decreases clonal proliferation of T cells by reducing IL-2 release. It acts by binding to cyclophilin forming a complex which inhibits calcineurin, a phosphotase that activates various transcription factors in T cells

Adverse effects of ciclosporin (note how everything is increased - fluid, BP, K+, hair, gums, glucose)
  • nephrotoxicity
  • hepatotoxicity
  • fluid retention
  • hypertension
  • hyperkalaemia
  • hypertrichosis
  • gingival hyperplasia
  • tremor
  • impaired glucose tolerance
  • hyperlipidaemia
  • increased susceptibility to severe infection

Interestingly for an immunosuppressant, ciclosporin is noted by the BNF to be 'virtually non-myelotoxic'.

Indications
  • following organ transplantation
  • rheumatoid arthritis
  • psoriasis (has a direct effect on keratinocytes as well as modulating T cell function)
  • ulcerative colitis
  • pure red cell aplasia
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