Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Hepatic SerpinA1 improves energy and glucose metabolism through regulation of preadipocyte proliferation and UCP1 expression

Journal Article · · Nature Communications

Lipodystrophy and obesity are associated with insulin resistance and metabolic syndrome accompanied by fat tissue dysregulation. Here, we show that serine protease inhibitor A1 (SerpinA1) expression in the liver is increased during recovery from lipodystrophy caused by the adipocyte-specific loss of insulin signaling in mice. SerpinA1 induces the proliferation of white and brown preadipocytes and increases the expression of uncoupling protein 1 (UCP1) to promote mitochondrial activation in mature white and brown adipocytes. Liver-specific SerpinA1 transgenic mice exhibit increased browning of adipose tissues, leading to increased energy expenditure, reduced adiposity and improved glucose tolerance. Conversely, SerpinA1 knockout mice exhibit decreased adipocyte mitochondrial function, impaired thermogenesis, obesity, and systemic insulin resistance. SerpinA1 forms a complex with the Eph receptor B2 and regulates its downstream signaling in adipocytes. These results demonstrate that SerpinA1 is an important hepatokine that improves obesity, energy expenditure and glucose metabolism by promoting preadipocyte proliferation and activating mitochondrial UCP1 expression in adipocytes.

Research Organization:
Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
Sponsoring Organization:
USDOE; National Institutes of Health (NIH); Japan Society for the Promotion of Science (JSPS) KAKENHI; Japan Agency for Medical Research and Development (AMED)
Grant/Contract Number:
AC05-76RL01830
OSTI ID:
2543014
Report Number(s):
PNNL-SA--193874
Journal Information:
Nature Communications, Journal Name: Nature Communications Journal Issue: 1 Vol. 15; ISSN 2041-1723
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English

References (61)

Introns and higher-order structure in the evolution of serpins journal February 1993
New perspectives on role of tumor microenvironment in progression of cutaneous squamous cell carcinoma journal July 2016
Eph Receptors and Ligands Comprise Two Major Specificity Subclasses and Are Reciprocally Compartmentalized during Embryogenesis journal July 1996
EphA-Ephrin-A-Mediated β Cell Communication Regulates Insulin Secretion from Pancreatic Islets journal April 2007
Developmental Origin of Fat: Tracking Obesity to Its Source journal October 2007
Eph-Ephrin Bidirectional Signaling in Physiology and Disease journal April 2008
What We Talk About When We Talk About Fat journal January 2014
The Changed Metabolic World with Human Brown Adipose Tissue: Therapeutic Visions journal April 2010
In Vivo Identification of Bipotential Adipocyte Progenitors Recruited by β3-Adrenoceptor Activation and High-Fat Feeding journal April 2012
Imbalance between Neutrophil Elastase and its Inhibitor α1-Antitrypsin in Obesity Alters Insulin Sensitivity, Inflammation, and Energy Expenditure journal April 2013
Adipocyte Dynamics and Reversible Metabolic Syndrome in Mice with an Inducible Adipocyte-Specific Deletion of the Insulin Receptor journal February 2017
Alpha1-antitrypsin deficiency: New therapies on the horizon journal August 2021
The thermogenic circuit: Regulators of thermogenic competency and differentiation journal June 2015
Adipose tissue as an endocrine organ journal March 2010
Hepatokines and metabolism: Deciphering communication from the liver journal February 2021
Apolipoprotein C3 and circulating mediators of preadipocyte proliferation in states of lipodystrophy journal October 2022
Differential signalling pathways for EGF versus PDGF activation of Erk1/2 MAP kinase and cell proliferation in brown pre-adipocytes journal November 2008
Obesity as a medical problem journal April 2000
Positive and negative control of Ucp1 gene transcription and the role of β-adrenergic signaling networks journal October 2010
Lkb1 controls brown adipose tissue growth and thermogenesis by regulating the intracellular localization of CRTC3 journal July 2016
Impaired thermogenesis and adipose tissue development in mice with fat-specific disruption of insulin and IGF-1 signalling journal January 2012
Tracking adipogenesis during white adipose tissue development, expansion and regeneration journal September 2013
Brown and beige fat: development, function and therapeutic potential journal September 2013
Clonal analyses and gene profiling identify genetic biomarkers of the thermogenic potential of human brown and white preadipocytes journal June 2015
Human 'brite/beige' adipocytes develop from capillary networks, and their implantation improves metabolic homeostasis in mice journal January 2016
Improved vectors and genome-wide libraries for CRISPR screening journal July 2014
Eph–ephrin promiscuity is now crystal clear journal May 2004
Repelling class discrimination: ephrin-A5 binds to and activates EphB2 receptor signaling journal April 2004
Neutrophil serine proteases: specific regulators of inflammation journal July 2006
Type 2 diabetes as an inflammatory disease journal January 2011
Mechanisms of ephrin–Eph signalling in development, physiology and disease journal January 2016
Eph receptor signalling casts a wide net on cell behaviour journal June 2005
CD206+ M2-like macrophages regulate systemic glucose metabolism by inhibiting proliferation of adipocyte progenitors journal August 2017
Chromatogram libraries improve peptide detection and quantification by data independent acquisition mass spectrometry journal December 2018
Phosphatase protector alpha4 (α4) is involved in adipocyte maintenance and mitochondrial homeostasis through regulation of insulin signaling journal October 2022
Brown adipose tissue is associated with cardiometabolic health journal January 2021
Prosit: proteome-wide prediction of peptide tandem mass spectra by deep learning journal May 2019
The ERK1/2 mitogen-activated protein kinase pathway as a master regulator of the G1- to S-phase transition journal May 2007
Cold-Activated Brown Adipose Tissue in Healthy Men journal April 2009
Functional Brown Adipose Tissue in Healthy Adults journal April 2009
Identification and Importance of Brown Adipose Tissue in Adult Humans journal April 2009
Fazirsiran for Liver Disease Associated with Alpha 1 -Antitrypsin Deficiency journal August 2022
Alpha1-Antitrypsin Deficiency journal April 2020
Editing out five Serpina1 paralogs to create a mouse model of genetic emphysema journal February 2018
β-Adrenergic Activation of p38 MAP Kinase in Adipocytes journal July 2001
The Eph Tyrosine Kinase Receptors EphB2 and EphA2 Are Novel Proteolytic Substrates of Tissue Factor/Coagulation Factor VIIa journal November 2014
EphB Receptors Regulate Dendritic Spine Morphogenesis through the Recruitment/Phosphorylation of Focal Adhesion Kinase and RhoA Activation journal January 2006
Neutrophil Elastase, Proteinase 3, and Cathepsin G as Therapeutic Targets in Human Diseases journal November 2010
Differential Roles of Insulin Receptor Substrates in Brown Adipocyte Differentiation journal March 2004
Spontaneous sweat secretion in calcium-free strontium medium journal May 1982
α1-Antitrypsin A treatment attenuates neutrophil elastase accumulation and enhances insulin sensitivity in adipose tissue of mice fed a high-fat diet journal October 2021
Altered adipose tissue and adipocyte function in the pathogenesis of metabolic syndrome journal October 2019
Alpha-1 antitrypsin deficiency impairs lung antibacterial immunity in mice journal February 2021
Update of the human and mouse SERPIN gene superfamily journal January 2013
`Eph'ective signaling: forward, reverse and crosstalk journal July 2003
A Novel Role for Adipose Ephrin-B1 in Inflammatory Response journal October 2013
Intrinsic Differences in Adipocyte Precursor Cells From Different White Fat Depots journal May 2012
Inflammatory Signaling and Brown Fat Activity journal March 2020
Review: Vaspin (SERPINA12) Expression and Function in Endocrine Cells journal July 2021
Ephrin B2 Induces T Cell Costimulation journal July 2003
The EphB2 tumor suppressor induces autophagic cell death via concomitant activation of the ERK1/2 and PI3K pathways journal January 2010

Similar Records

Anti-obesity potential of Glycyrrhiza uralensis and licochalcone A through induction of adipocyte browning
Journal Article · Sat Sep 15 00:00:00 EDT 2018 · Biochemical and Biophysical Research Communications · OSTI ID:23105527

HDAC6 regulates thermogenesis of brown adipocytes through activating PKA to induce UCP1 expression
Journal Article · Sat Sep 15 00:00:00 EDT 2018 · Biochemical and Biophysical Research Communications · OSTI ID:23105708

The pesticide chlorpyrifos promotes obesity by inhibiting diet-induced thermogenesis in brown adipose tissue
Journal Article · Fri Aug 27 00:00:00 EDT 2021 · Nature Communications · OSTI ID:2469593