Abstract:
OBJECTIVE:Members of the transient receptor potential (TRP) channels are involved in mediating the electrical excitability and stimulus-secretion coupling in the pancreatic β-cells. The expression and the relative abundance of different TRP channels in the human β-cells are unknown. The objective of this study was to examine the expression of the TRP channels and their relative abundance in the human β-cell. METHODS:RNA sequencing data obtained from human islets, fluorescence-activated cell sorting-purified human β-cell and human pancreatic acinar cells were analyzed. Gene counts and fragments per kilobase per million mapped reads were obtained. RESULTS:Among the TRPC family only the TRPC1 was expressed in the human β-cell. TRPV1 channels were not expressed in the human β-cells. Among the TRPM family, TRPM4, TRPM7, TRPM2, and TRPM3 were expressed in the human β-cell. Of the remaining TRP channels, TRPP2, TRPML1, and TRPML3 were expressed in these cells. CONCLUSIONS:By analyzing the RNA sequencing data, we have detected for the first time the TRP channels that are expressed in the purified human β-cells, in comparison to the other relevant pancreatic cell types. Our study provides an opportunity to focus on these TRP channels for a better understanding of the electrophysiology and stimulus-secretion coupling in these cells.
journal_name
Pancreasjournal_title
Pancreasauthors
Marabita F,Islam MSdoi
10.1097/MPA.0000000000000685subject
Has Abstractpub_date
2017-01-01 00:00:00pages
97-101issue
1eissn
0885-3177issn
1536-4828journal_volume
46pub_type
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