A microfluidic system for monitoring glucagon secretion from human pancreatic islets of Langerhans.
A microfluidic system for monitoring glucagon secretion from human pancreatic islets of Langerhans.
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DOI:
10.1039/d1ay00703c
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发表时间:
2021-08-28
期刊:
影响因子:
--
通讯作者:
Roper MG
中科院分区:
文献类型:
--
作者:
Eaton WJ;Roper MG
Glucagon is a 29-amino acid peptide released from α-cells within pancreatic islets of Langerhans to help raise blood glucose levels. While a plethora of methodologies have been developed for quantitative measurement of insulin released from islets, such methods are not well developed for glucagon despite its importance in blood sugar regulation. In this work, a simple yet robust microfluidic device was developed for holding human pancreatic islets and perfuse them with glucose. The perfusate was collected into 2 min fractions and glucagon quantified using a homogeneous time-resolved Förster resonance energy transfer (TR-FRET) sandwich immunoassay. Simulation of fluid flow within the microfluidic device indicated the device produced low amounts of shear stress on islets, and characterization of the flow with standard glucagon solutions revealed response times within 2 fractions (<4 min). Results with human islets from multiple donors demonstrated either a “burst” of glucagon or a “sustained” glucagon release across the entire period of stimulation. The simplicity, yet robustness, of the device and method is expected to appeal to a number of researchers examining pancreatic islet physiology. A microfluidic device was designed to hold human pancreatic islets of Langerhans for monitoring glucagon secretion using a homogeneous immunoassay.
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DOI:
10.1038/labinvest.2010.124
发表时间:
2010-11
期刊:
Laboratory investigation; a journal of technical methods and pathology
影响因子:
--
作者:
通讯作者:
--
DOI:
10.1039/c5an02468d
发表时间:
2016-03-21
期刊:
The Analyst
影响因子:
--
作者:
Yi L;Wang X;Bethge L;Klussmann S;Roper MG
通讯作者:
Roper MG
影响因子:
3.7
作者:
Sankar, Krishana S.;Green, Brenda J.;Rocheleau, Jonathan V.
通讯作者:
Rocheleau, Jonathan V.
影响因子:
7.4
作者:
Lomasney, Anna R.;Yi, Lian;Roper, Michael G.
通讯作者:
Roper, Michael G.
影响因子:
4.3
作者:
Shackman, Jonathan G.;Reid, Kendra R.;Dugan, Colleen E.;Kennedy, Robert T.
通讯作者:
Kennedy, Robert T.