Accumulation and metabolism of Ins(1,4,5)P3 and Ins(1,3,4,5)P4 in muscarinic-receptor-stimulated SH-SY5Y neuroblastoma cells.

نویسندگان

  • D G Lambert
  • R A Challiss
  • S R Nahorski
چکیده

Stimulation of M3 muscarinic receptors expressed by SH-SY5Y cells induced a dose- and time-related increase in the mass of Ins(1,4,5)P3 (basal 38.3 +/- 5.8 pmol/mg of protein) and Ins(1,3,4,5)P4 (basal 6.1 +/- 1.2 pmol/mg of protein). Comparison of radioreceptor mass assays with [3H]inositol labelling showed higher-fold stimulations with the former protocol. The later accumulation of Ins(1,4,5)P3 and Ins(1,3,4,5)P4 mass was dependent upon extracellular Ca2+.

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عنوان ژورنال:
  • The Biochemical journal

دوره 273 ( Pt 3)  شماره 

صفحات  -

تاریخ انتشار 1991