Abstract
Activation of peroxisome proliferator-activated receptor (PPAR) gamma, a nuclear receptor highly expressed in adipocytes, induces the differentiation of murine preadipocyte cell lines. Recently, thiazolidinediones (TZDs), a novel class of insulin-sensitizing compounds effective in the treatment of non-insulin-dependent diabetes mellitus (NIDDM) have been shown to bind to PPARgamma with high affinity. We have examined the effects of these compounds on the differentiation of human preadipocytes derived from subcutaneous (SC) and omental (Om) fat. Assessed by lipid accumulation, glycerol 3-phosphate dehydrogenase activity, and mRNA levels, subcultured preadipocytes isolated from either SC or Om depots did not differentiate in defined serum-free medium. Addition of TZDs (BRL49653 or troglitazone) or 15-deoxyDelta12,14prostaglandin J2 (a natural PPARgamma ligand) enhanced markedly the differentiation of preadipocytes from SC sites, assessed by all three criteria. The rank order of potency of these agents in inducing differentiation matched their ability to activate transcription via human PPARgamma. In contrast, preadipocytes from Om sites in the same individuals were refractory to TZDs, although PPARgamma was expressed at similar levels in both depots. The mechanism of this depot-specific TZD response is unknown. However, given the association between Om adiposity and NIDDM, the site-specific responsiveness of human preadipocytes to TZDs may be involved in the beneficial effects of these compounds on in vivo insulin sensitivity.
Full Text
The Full Text of this article is available as a PDF (244.1 KB).
Selected References
These references are in PubMed. This may not be the complete list of references from this article.
- Adams M., Reginato M. J., Shao D., Lazar M. A., Chatterjee V. K. Transcriptional activation by peroxisome proliferator-activated receptor gamma is inhibited by phosphorylation at a consensus mitogen-activated protein kinase site. J Biol Chem. 1997 Feb 21;272(8):5128–5132. doi: 10.1074/jbc.272.8.5128. [DOI] [PubMed] [Google Scholar]
- Arner P. Differences in lipolysis between human subcutaneous and omental adipose tissues. Ann Med. 1995 Aug;27(4):435–438. doi: 10.3109/07853899709002451. [DOI] [PubMed] [Google Scholar]
- Berger J., Bailey P., Biswas C., Cullinan C. A., Doebber T. W., Hayes N. S., Saperstein R., Smith R. G., Leibowitz M. D. Thiazolidinediones produce a conformational change in peroxisomal proliferator-activated receptor-gamma: binding and activation correlate with antidiabetic actions in db/db mice. Endocrinology. 1996 Oct;137(10):4189–4195. doi: 10.1210/endo.137.10.8828476. [DOI] [PubMed] [Google Scholar]
- Brönnegård M., Arner P., Hellström L., Akner G., Gustafsson J. A. Glucocorticoid receptor messenger ribonucleic acid in different regions of human adipose tissue. Endocrinology. 1990 Oct;127(4):1689–1696. doi: 10.1210/endo-127-4-1689. [DOI] [PubMed] [Google Scholar]
- Cao Z., Umek R. M., McKnight S. L. Regulated expression of three C/EBP isoforms during adipose conversion of 3T3-L1 cells. Genes Dev. 1991 Sep;5(9):1538–1552. doi: 10.1101/gad.5.9.1538. [DOI] [PubMed] [Google Scholar]
- Chawla A., Schwarz E. J., Dimaculangan D. D., Lazar M. A. Peroxisome proliferator-activated receptor (PPAR) gamma: adipose-predominant expression and induction early in adipocyte differentiation. Endocrinology. 1994 Aug;135(2):798–800. doi: 10.1210/endo.135.2.8033830. [DOI] [PubMed] [Google Scholar]
- De Vos P., Lefebvre A. M., Miller S. G., Guerre-Millo M., Wong K., Saladin R., Hamann L. G., Staels B., Briggs M. R., Auwerx J. Thiazolidinediones repress ob gene expression in rodents via activation of peroxisome proliferator-activated receptor gamma. J Clin Invest. 1996 Aug 15;98(4):1004–1009. doi: 10.1172/JCI118860. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Dunaif A., Scott D., Finegood D., Quintana B., Whitcomb R. The insulin-sensitizing agent troglitazone improves metabolic and reproductive abnormalities in the polycystic ovary syndrome. J Clin Endocrinol Metab. 1996 Sep;81(9):3299–3306. doi: 10.1210/jcem.81.9.8784087. [DOI] [PubMed] [Google Scholar]
- Forman B. M., Tontonoz P., Chen J., Brun R. P., Spiegelman B. M., Evans R. M. 15-Deoxy-delta 12, 14-prostaglandin J2 is a ligand for the adipocyte determination factor PPAR gamma. Cell. 1995 Dec 1;83(5):803–812. doi: 10.1016/0092-8674(95)90193-0. [DOI] [PubMed] [Google Scholar]
- Hauner H., Entenmann G., Wabitsch M., Gaillard D., Ailhaud G., Negrel R., Pfeiffer E. F. Promoting effect of glucocorticoids on the differentiation of human adipocyte precursor cells cultured in a chemically defined medium. J Clin Invest. 1989 Nov;84(5):1663–1670. doi: 10.1172/JCI114345. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Hu E., Kim J. B., Sarraf P., Spiegelman B. M. Inhibition of adipogenesis through MAP kinase-mediated phosphorylation of PPARgamma. Science. 1996 Dec 20;274(5295):2100–2103. doi: 10.1126/science.274.5295.2100. [DOI] [PubMed] [Google Scholar]
- Hu E., Tontonoz P., Spiegelman B. M. Transdifferentiation of myoblasts by the adipogenic transcription factors PPAR gamma and C/EBP alpha. Proc Natl Acad Sci U S A. 1995 Oct 10;92(21):9856–9860. doi: 10.1073/pnas.92.21.9856. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Keller H., Dreyer C., Medin J., Mahfoudi A., Ozato K., Wahli W. Fatty acids and retinoids control lipid metabolism through activation of peroxisome proliferator-activated receptor-retinoid X receptor heterodimers. Proc Natl Acad Sci U S A. 1993 Mar 15;90(6):2160–2164. doi: 10.1073/pnas.90.6.2160. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Kim J. B., Spiegelman B. M. ADD1/SREBP1 promotes adipocyte differentiation and gene expression linked to fatty acid metabolism. Genes Dev. 1996 May 1;10(9):1096–1107. doi: 10.1101/gad.10.9.1096. [DOI] [PubMed] [Google Scholar]
- Kliewer S. A., Lenhard J. M., Willson T. M., Patel I., Morris D. C., Lehmann J. M. A prostaglandin J2 metabolite binds peroxisome proliferator-activated receptor gamma and promotes adipocyte differentiation. Cell. 1995 Dec 1;83(5):813–819. doi: 10.1016/0092-8674(95)90194-9. [DOI] [PubMed] [Google Scholar]
- Kliewer S. A., Umesono K., Noonan D. J., Heyman R. A., Evans R. M. Convergence of 9-cis retinoic acid and peroxisome proliferator signalling pathways through heterodimer formation of their receptors. Nature. 1992 Aug 27;358(6389):771–774. doi: 10.1038/358771a0. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Mayne L. V., Priestley A., James M. R., Burke J. F. Efficient immortalization and morphological transformation of human fibroblasts by transfection with SV40 DNA linked to a dominant marker. Exp Cell Res. 1986 Feb;162(2):530–538. doi: 10.1016/0014-4827(86)90356-3. [DOI] [PubMed] [Google Scholar]
- Montague C. T., Prins J. B., Sanders L., Digby J. E., O'Rahilly S. Depot- and sex-specific differences in human leptin mRNA expression: implications for the control of regional fat distribution. Diabetes. 1997 Mar;46(3):342–347. doi: 10.2337/diab.46.3.342. [DOI] [PubMed] [Google Scholar]
- Peterson G. L. A simplification of the protein assay method of Lowry et al. which is more generally applicable. Anal Biochem. 1977 Dec;83(2):346–356. doi: 10.1016/0003-2697(77)90043-4. [DOI] [PubMed] [Google Scholar]
- Tone Y., Collingwood T. N., Adams M., Chatterjee V. K. Functional analysis of a transactivation domain in the thyroid hormone beta receptor. J Biol Chem. 1994 Dec 9;269(49):31157–31161. [PubMed] [Google Scholar]
- Tontonoz P., Hu E., Graves R. A., Budavari A. I., Spiegelman B. M. mPPAR gamma 2: tissue-specific regulator of an adipocyte enhancer. Genes Dev. 1994 May 15;8(10):1224–1234. doi: 10.1101/gad.8.10.1224. [DOI] [PubMed] [Google Scholar]
- Tontonoz P., Hu E., Spiegelman B. M. Stimulation of adipogenesis in fibroblasts by PPAR gamma 2, a lipid-activated transcription factor. Cell. 1994 Dec 30;79(7):1147–1156. doi: 10.1016/0092-8674(94)90006-x. [DOI] [PubMed] [Google Scholar]
- Vidal-Puig A., Jimenez-Liñan M., Lowell B. B., Hamann A., Hu E., Spiegelman B., Flier J. S., Moller D. E. Regulation of PPAR gamma gene expression by nutrition and obesity in rodents. J Clin Invest. 1996 Jun 1;97(11):2553–2561. doi: 10.1172/JCI118703. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Wang X. Z., Ron D. Stress-induced phosphorylation and activation of the transcription factor CHOP (GADD153) by p38 MAP Kinase. Science. 1996 May 31;272(5266):1347–1349. doi: 10.1126/science.272.5266.1347. [DOI] [PubMed] [Google Scholar]
- Willson T. M., Cobb J. E., Cowan D. J., Wiethe R. W., Correa I. D., Prakash S. R., Beck K. D., Moore L. B., Kliewer S. A., Lehmann J. M. The structure-activity relationship between peroxisome proliferator-activated receptor gamma agonism and the antihyperglycemic activity of thiazolidinediones. J Med Chem. 1996 Feb 2;39(3):665–668. doi: 10.1021/jm950395a. [DOI] [PubMed] [Google Scholar]
- Yu K., Bayona W., Kallen C. B., Harding H. P., Ravera C. P., McMahon G., Brown M., Lazar M. A. Differential activation of peroxisome proliferator-activated receptors by eicosanoids. J Biol Chem. 1995 Oct 13;270(41):23975–23983. doi: 10.1074/jbc.270.41.23975. [DOI] [PubMed] [Google Scholar]
- Zhang B., Berger J., Zhou G., Elbrecht A., Biswas S., White-Carrington S., Szalkowski D., Moller D. E. Insulin- and mitogen-activated protein kinase-mediated phosphorylation and activation of peroxisome proliferator-activated receptor gamma. J Biol Chem. 1996 Dec 13;271(50):31771–31774. doi: 10.1074/jbc.271.50.31771. [DOI] [PubMed] [Google Scholar]
- Zhang B., Graziano M. P., Doebber T. W., Leibowitz M. D., White-Carrington S., Szalkowski D. M., Hey P. J., Wu M., Cullinan C. A., Bailey P. Down-regulation of the expression of the obese gene by an antidiabetic thiazolidinedione in Zucker diabetic fatty rats and db/db mice. J Biol Chem. 1996 Apr 19;271(16):9455–9459. doi: 10.1074/jbc.271.16.9455. [DOI] [PubMed] [Google Scholar]