Constitutive androstane receptor induced-hepatomegaly and liver regeneration is partially via yes-associated protein activation
Open accessAbstract
The constitutive androstane receptor (CAR, NR3I1) belongs to nuclear receptor superfamily. It was reported that CAR agonist TCPOBOP induces hepatomegaly but the underlying mechanism remains largely unknown. Yes-associated protein (YAP) is a potent regulator of organ size. The aim of this study is to explore the role of YAP in CAR activation-induced hepatomegaly and liver regeneration. TCPOBOP-induced CAR activation on hepatomegaly and liver regeneration was evaluated in wild-type (WT) mice, liver-specific YAP-deficient mice, and partial hepatectomy (PHx) mice. The results demonstrate that TCPOBOP can increase the liver-to-body weight ratio in wild-type mice and PHx mice. Hepatocytes enlargement around central vein (CV) area was observed, meanwhile hepatocytes proliferation was promoted as evidenced by the increased number of KI67+ cells around portal vein (PV) area. The protein levels of YAP and its downstream targets were upregulated in TCPOBOP-treated mice and YAP translocation can be induced by CAR activation. Co-immunoprecipitation results suggested a potential protein–protein interaction of CAR and YAP. However, CAR activation-induced hepatomegaly can still be observed in liver-specific YAP-deficient (Yap–/–) mice. In summary, CAR activation promotes hepatomegaly and liver regeneration partially by inducing YAP translocation and interaction with YAP signaling pathway, which provides new insights to further understand the physiological functions of CAR.
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Pharmacological activation of CAR stimulates liver regeneration.
“Although pharmacological activation of CAR has been demonstrated to stimulate liver regeneration,20,24 loss of function studies remain sparse.”
From Constitutive Androstane Receptor Regulates Bile Acid Homeostasis and Metabolism During Liver Regeneration (2026) · cites this paper as [20]
CAR's pro-proliferative role in liver is mediated through induction of c-Myc, Foxm1, and cyclin D1, and modulation of β-catenin and YAP signaling pathways.
“Prior studies have focused primarily on the pro-proliferative role of CAR in the liver, mediated through the induction of factors such as cellular-myelocytomatosis oncogene (c-Myc),15 forkhead box m1 (Foxm1),15 and cyclin D1 (Ccnd1),16 as well as modulation of β-catenin17,18 and Yes-associated protein19, 20, 21, 22 signaling pathways.”
From Constitutive Androstane Receptor Regulates Bile Acid Homeostasis and Metabolism During Liver Regeneration (2026) · cites this paper as [20]
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References 34 · Cited by 41
Research works printed but not linked: 28
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- Authors
- Gao, Y., Fan, S., Li, H., Jiang, Y., Yao, X., Zhu, S., Yang, X., Wang, R., Tian, J., Gonzalez, F. J., Huang, M., & Bi, H.
- Affiliations
- Sun Yat-sen University (CN)
- National Cancer Institute (US)
- Corresponding author
- Huang, Min
- Bi, Huichang
- ORCID
- Venue
- Acta Pharmaceutica Sinica B
- Publisher
- Elsevier BV
- Published
- 2021-03
- Volume
- 11
- Issue
- 3
- Pages
- 727-737
- ISSN
- 2211-3835 (ISSN-L)
- PMC
- PMC7982502
- OpenAlex
- W3108739829
- Cited by
- 41
- References
- 34
- Citations by year
- 2026: 5 · 2025: 8 · 2024: 9 · 2023: 7 · 2022: 10 · 2021: 1
- FWCI
- 2.65
- Type
- journal article
- Language
- en
- Open access
- gold
- doi.org
- Licence
- Locations
- Acta Pharmaceutica Sinica B (publishedVersion, cc-by-nc-nd)
- PubMed Central (publishedVersion, cc-by-nc-nd)
- PubMed (publishedVersion)
- DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
- Funders
- Higher Education Discipline Innovation Project (B16047)
- Guangdong Provincial Pearl River Talents Program (2017BT01Y093)
- National Key Research and Development Program of China (2017YFE0109900)
- National Natural Science Foundation of China (81973392, 82025034)
- Guangdong Provincial Key Laboratory of Construction Foundation (2017B030314030)
- Shenzhen Science and Technology Innovation Program (KQTD20190929174023858)
- Natural Science Foundation of Guangdong Province (2017A030311018)
- Topics
- Health Sciences › Medicine › Hepatology › Liver physiology and pathology
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Hippo pathway signaling and YAP/TAZ
- Life Sciences › Pharmacology, Toxicology and Pharmaceutics › Pharmacology › Drug-Induced Hepatotoxicity and Protection
- Keywords
- constitutive androstane receptor, hepatomegaly, liver regeneration, YAP, TCPOBOP, partial hepatectomy, hepatocyte proliferation, nuclear receptor signaling
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