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1.
  • Waluk, Dominik P., et al. (författare)
  • N-acyl taurines trigger insulin secretion by increasing calcium flux in pancreatic b-cells
  • Annan publikation (övrigt vetenskapligt/konstnärligt)abstract
    • Pancreatic b-cells secrete insulin in response to various stimuli to control blood glucose levels. This insulin release is the result of a complex interplay between signalling, membrane potential and intracellular calcium levels. Various nutritional and hormonal factors are involved in regulating this process. N-acyl taurines are a group of fatty acids which are amidated (or conjugated) to taurine and little is known about their physiological functions. In this study, treatment of pancreatic b-cell lines (HIT-T15) and rat islet cell lines (INS-1) with N-acyl taurines (N-arachidonoyl taurine and N-oleoyl taurine), induced a high frequency of calcium oscillations in these cells. Treatment with N-arachidonoyl taurine and N-oleoyl taurine also resulted in a significant increase in insulin secretion from pancreatic b-cell lines as determined by insulin release assay and immunofluorescence (p<0.05). Our data also show that the transient receptor potential vanilloid 1 (TRPV1) channel is involved in insulin secretion in response to N-arachidonoyl taurine and N-oleoyl taurine treatment. However our data also suggest that receptors other than TRPV1 are involved in the insulin secretion response to treatment with N-oleoyl taurine.
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2.
  • Waluk, Dominik P., et al. (författare)
  • N-Acyl taurines trigger insulin secretion by increasing calcium flux in pancreatic beta-cells
  • 2013
  • Ingår i: Biochemical and Biophysical Research Communications - BBRC. - : Elsevier BV. - 0006-291X .- 1090-2104. ; 430:1, s. 54-59
  • Tidskriftsartikel (refereegranskat)abstract
    • Pancreatic beta-cells secrete insulin in response to various stimuli to control blood glucose levels. This insulin release is the result of a complex interplay between signaling, membrane potential and intracellular calcium levels. Various nutritional and hormonal factors are involved in regulating this process. N-Acyl taurines are a group of fatty acids which are amidated (or conjugated) to taurine and little is known about their physiological functions. In this study, treatment of pancreatic beta-cell lines (HIT-T15) and rat islet cell lines (INS-1) with N-acyl taurines (N-arachidonoyl taurine and N-oleoyl taurine), induced a high frequency of calcium oscillations in these cells. Treatment with N-arachidonoyl taurine and N-oleoyl taurine also resulted in a significant increase in insulin secretion from pancreatic beta-cell lines as determined by insulin release assay and immunofluorescence (p < 0.05). Our data also show that the transient receptor potential vanilloid 1 (TRPV1) channel is involved in insulin secretion in response to N-arachidonoyl taurine and N-oleoyl taurine treatment. However our data also suggest that receptors other than TRPV1 are involved in the insulin secretion response to treatment with N-oleoyl taurine.
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  • Resultat 1-3 av 3

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