1
|
Bouillon R, Bikle D. Vitamin D Metabolism Revised: Fall of Dogmas. J Bone Miner Res 2019; 34:1985-1992. [PMID: 31589774 PMCID: PMC9000993 DOI: 10.1002/jbmr.3884] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Revised: 09/06/2019] [Accepted: 09/24/2019] [Indexed: 12/19/2022]
Affiliation(s)
- Roger Bouillon
- Laboratory of Clinical and Experimental Endocrinology, Department of Chronic Diseases Metabolism and Ageing, KU Leuven, Leuven, Belgium
| | - Dan Bikle
- Medicine and Dermatology, University of California San Francisco and VA Medical Center, San Francisco, CA, USA
| |
Collapse
|
2
|
Bouillon R, Carmeliet G, Lieben L, Watanabe M, Perino A, Auwerx J, Schoonjans K, Verstuyf A. Vitamin D and energy homeostasis: of mice and men. Nat Rev Endocrinol 2014; 10:79-87. [PMID: 24247221 DOI: 10.1038/nrendo.2013.226] [Citation(s) in RCA: 102] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The vitamin D endocrine system has many extraskeletal targets, including adipose tissue. 1,25-Dihydroxyvitamin D₃, the active form of vitamin D, not only increases adipogenesis and the expression of typical adipocyte genes but also decreases the expression of uncoupling proteins. Mice with disrupted vitamin D action--owing to gene deletion of the nuclear receptor vitamin D receptor (Vdr) or the gene encoding 1α-hydroxylase (Cyp27b1)--lose fat mass over time owing to an increase in energy expenditure, whereas mice with increased Vdr-mediated signalling in adipose tissue become obese. The resistance to diet-induced obesity in mice with disrupted Vdr signalling is caused at least partially by increased expression of uncoupling proteins in white adipose tissue. However, the bile acid pool is also increased in these animals, and bile acids are known to be potent inducers of energy expenditure through activation of several nuclear receptors, including Vdr, and G-protein-coupled receptors, such as GPBAR1 (also known as TGR5). By contrast, in humans, obesity is strongly associated with poor vitamin D status. A causal link has not been firmly proven, but most intervention studies have failed to demonstrate a beneficial effect of vitamin D supplementation on body weight. The reasons for the major discrepancy between mouse and human data are unclear, but understanding the link between vitamin D status and energy homeostasis could potentially be very important for the human epidemic of obesity and the metabolic syndrome.
Collapse
Affiliation(s)
- Roger Bouillon
- Clinical and Experimental Endocrinology, KU Leuven, O&NI Herestraat 49 - bus 902, 3000 Leuven, Belgium
| | - Geert Carmeliet
- Clinical and Experimental Endocrinology, KU Leuven, O&NI Herestraat 49 - bus 902, 3000 Leuven, Belgium
| | - Liesbet Lieben
- Clinical and Experimental Endocrinology, KU Leuven, O&NI Herestraat 49 - bus 902, 3000 Leuven, Belgium
| | - Mitsuhiro Watanabe
- Health Science Laboratory, Graduate School of Media and Governance, Keio University, 5322 Endo Fujisawa-shi, 252-0882 Kanagawa, Japan
| | - Alessia Perino
- Institute of Bioengineering, Ecole Polytechnique Fédérale de Lausanne, Station 15, AI 1149, CH-1015 Lausanne, Switzerland
| | - Johan Auwerx
- Institute of Bioengineering, Ecole Polytechnique Fédérale de Lausanne, Station 15, AI 1149, CH-1015 Lausanne, Switzerland
| | - Kristina Schoonjans
- Institute of Bioengineering, Ecole Polytechnique Fédérale de Lausanne, Station 15, AI 1149, CH-1015 Lausanne, Switzerland
| | - Annemieke Verstuyf
- Clinical and Experimental Endocrinology, KU Leuven, O&NI Herestraat 49 - bus 902, 3000 Leuven, Belgium
| |
Collapse
|
3
|
de Paula FJA, Rosen CJ. Bone Remodeling and Energy Metabolism: New Perspectives. Bone Res 2013; 1:72-84. [PMID: 26273493 DOI: 10.4248/br201301005] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2012] [Accepted: 01/30/2013] [Indexed: 12/27/2022] Open
Abstract
Bone mineral, adipose tissue and energy metabolism are interconnected by a complex and multilevel series of networks. Calcium and phosphorus are utilized for insulin secretion and synthesis of high energy compounds. Adipose tissue store lipids and cholecalciferol, which, in turn, can influence calcium balance and energy expenditure. Hormones long-thought to solely modulate energy and mineral homeostasis may influence adipocytic function. Osteoblasts are a target of insulin action in bone. Moreover, endocrine mediators, such as osteocalcin, are synthesized in the skeleton but regulate carbohydrate disposal and insulin secretion. Finally, osteoblasts and adipocytes originate from the same mesenchymal progenitor. The mutual crosstalk between osteoblasts and adipocytes within the bone marrow microenvironment plays a crucial role in bone remodeling. In the present review we provide an overview of the reciprocal control between bone and energy metabolism and its clinical implications.
Collapse
Affiliation(s)
- Francisco J A de Paula
- Department of Internal Medicine, School of Medicine of Ribeirão Preto, University of São Paulo , Brazil
| | - Clifford J Rosen
- Center for Clinical and Translational Research, Maine Medical Center Research Institute , USA
| |
Collapse
|
4
|
Bone Healing in Critical-Size Defects Treated With Immediate Transplant of Fragmented Autogenous White Adipose Tissue. J Craniofac Surg 2012; 23:1239-44. [DOI: 10.1097/scs.0b013e31825da9d9] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
|