Cited by 993Drug Transport and Resistance MechanismsCholesterol and Lipid MetabolismReceptor Mechanisms and Signaling

Identification of membrane-type receptor for bile acids (M-BAR)

Maruyama, Takaharu, Miyamoto, Yasuhisa, Nakamura, Takao, Tamai, Yoshitaka, Okada, Hiromasa, Sugiyama, Eiji, Nakamura, Tatsuji, Itadani, Hiraku +1 more·2002·Biochemical and Biophysical Research Communications

Abstract

Bile acids play an essential role in the solubilization and absorption of dietary fat and lipid-soluble vitamins. Bile acids also modulate the transcription of various genes for enzymes and transport proteins for their own and cholesterol homeostasis through binding to nuclear receptors. Here we report a novel category of bile acid receptor, a membrane-type G protein-coupled receptor (GPCR), BG37. Bile acids induced rapid and dose-dependent elevation of intracellular cAMP levels in BG37-expressing cells, but not in mock-transfected cells, independently of nuclear receptor expression. The rank order of potency of various bile acids for BG37-expressing cells was different from that for the nuclear receptor-mediated response. These observations demonstrate the presence of two independent signaling pathways for bile acids; membrane-type GPCR for rapid signaling and nuclear receptors for delayed signaling. Expression of BG37 was detected in various specific tissues, suggesting its physiological role, although it remains to be further characterized.

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Crossref · 10.1016/s0006-291x(02)02550-0

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Authors
Maruyama, T., Miyamoto, Y., Nakamura, T., Tamai, Y., Okada, H., Sugiyama, E., Nakamura, T., Itadani, H., & Tanaka, K.
Corresponding author
Tanaka, Kenichi
Venue
Biochemical and Biophysical Research Communications
Publisher
Elsevier BV
Published
2002-11
Volume
298
Issue
5
Pages
714-719
ISSN
0006-291X (ISSN-L)
OpenAlex
W1965796890
Cited by
993
References
28
Citations by year
2026: 39 · 2025: 48 · 2024: 59 · 2023: 66 · 2022: 70 · 2021: 63 · 2020: 75 · 2019: 71 · 2018: 60 · 2017: 64 · 2016: 47 · 2015: 45 · 2014: 41 · 2013: 54 · 2012: 41
FWCI
1.92
Type
journal article
Language
en
Open access
closed
Locations
  • Biochemical and Biophysical Research Communications (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Oncology › Drug Transport and Resistance Mechanisms
  • Health Sciences › Medicine › Surgery › Cholesterol and Lipid Metabolism
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Receptor Mechanisms and Signaling
Keywords
bile acids, nuclear receptors, cholesterol homeostasis, fat absorption, tissue distribution
MeSH terms
Cyclic AMP, Amino Acid Sequence, Base Sequence, Bile Acids and Salts, Cell Line, DNA, Humans, Molecular Sequence Data, Receptors, Cell Surface, RNA, Messenger, Tissue Distribution, Gene Expression, Sequence Homology, Amino Acid, Receptors, Cytoplasmic and Nuclear, Caco-2 Cells, GTP-Binding Proteins

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