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Originally published In Press as doi:10.1074/jbc.M007322200 on August 17, 2000
J. Biol. Chem., Vol. 275, Issue 49, 38486-38493, December 8, 2000
Perilipin A Increases Triacylglycerol Storage by Decreasing the
Rate of Triacylglycerol Hydrolysis*
Dawn L.
Brasaemle §¶,
Boris
Rubin §,
Ingrid A.
Harten§,
Jasmine
Gruia-Gray **,
Alan R.
Kimmel , and
Constantine
Londos
From the Department of Biochemistry, MCP Hahnemann
University, Philadelphia, Pennsylvania 19129, the
§ Department of Nutritional Sciences, Rutgers, The State
University of New Jersey, New Brunswick, New Jersey 08901, and the
Molecular Mechanisms of Development Section and
 Membrane Regulation Section, Laboratory of
Cellular and Developmental Biology, NIDDK, National Institutes of
Health, Bethesda, Maryland 20892
The perilipins are the most abundant proteins at
the surfaces of lipid droplets in adipocytes and are also found in
steroidogenic cells. To investigate perilipin function, perilipin A,
the predominant isoform, was ectopically expressed in fibroblastic
3T3-L1 pre-adipocytes that normally lack the perilipins. In control
cells, fluorescent staining of neutral lipids with Bodipy 493/503
showed a few minute and widely dispersed lipid droplets, while in cells
stably expressing perilipin A, the lipid droplets were more numerous
and tightly clustered in one or two regions of the cytoplasm.
Immunofluorescence microscopy revealed that the ectopic perilipin A
localized to the surfaces of the tiny clustered lipid droplets;
subcellular fractionation of the cells using sucrose gradients
confirmed that the perilipin A localized exclusively to lipid droplets.
Cells expressing perilipin A stored 6-30-fold more triacylglycerol
than control cells due to reduced lipolysis of triacylglycerol stores. The lipolysis of stored triacylglycerol was 5 times slower in lipid-loaded cells expressing perilipin A than in lipid-loaded control
cells, when triacylglycerol synthesis was blocked with 6 µM triacsin C. This stabilization of
triacylglycerol was not due to the suppression of triacylglycerol
lipase activity by the expression of perilipin A. We conclude that
perilipin A increases the triacylglycerol content of cells by forming a
barrier that reduces the access of soluble lipases to stored
lipids, thus inhibiting triacylglycerol hydrolysis. These studies
suggest that perilipin A plays a major role in the regulation of
triacylglycerol storage and lipolysis in adipocytes.
*
This work was supported by American Heart
Association-Southeastern Pennsylvania Affiliate Grant B98429E (to
D. L. B.) and an American Diabetes Association research grant
(to D. L. B.).The costs of publication of this
article were defrayed in part by the
payment of page charges. The article
must therefore be hereby marked
"advertisement" in
accordance with 18 U.S.C. Section
1734 solely to indicate this fact.
¶
To whom correspondence should be addressed: Dept. of
Nutritional Sciences, Rutgers, The State University of New Jersey, 96 Lipman Dr., New Brunswick, NJ 08901. Tel.: 732-932-6524; Fax: 732-932-6837; E-mail: brasaemle@aesop.rutgers.edu.
**
Present address: Amersham Pharmacia Biotech, Inc., Piscataway, NJ 08855.
Copyright © 2000 by The American Society for Biochemistry and Molecular Biology, Inc.

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S. Nagai, C. Shimizu, M. Umetsu, S. Taniguchi, M. Endo, H. Miyoshi, N. Yoshioka, M. Kubo, and T. Koike
Identification of a Functional Peroxisome Proliferator-Activated Receptor Responsive Element within the Murine Perilipin Gene
Endocrinology,
May 1, 2004;
145(5):
2346 - 2356.
[Abstract]
[Full Text]
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S. Urs, C. Smith, B. Campbell, A. M. Saxton, J. Taylor, B. Zhang, J. Snoddy, B. Jones Voy, and N. Moustaid-Moussa
Gene Expression Profiling in Human Preadipocytes and Adipocytes by Microarray Analysis
J. Nutr.,
April 1, 2004;
134(4):
762 - 770.
[Abstract]
[Full Text]
[PDF]
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N. Arimura, T. Horiba, M. Imagawa, M. Shimizu, and R. Sato
The Peroxisome Proliferator-activated Receptor {gamma} Regulates Expression of the Perilipin Gene in Adipocytes
J. Biol. Chem.,
March 12, 2004;
279(11):
10070 - 10076.
[Abstract]
[Full Text]
[PDF]
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G. Larigauderie, C. Furman, M. Jaye, C. Lasselin, C. Copin, J.-C. Fruchart, G. Castro, and M. Rouis
Adipophilin Enhances Lipid Accumulation and Prevents Lipid Efflux From THP-1 Macrophages: Potential Role in Atherogenesis
Arterioscler. Thromb. Vasc. Biol.,
March 1, 2004;
24(3):
504 - 510.
[Abstract]
[Full Text]
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A. Garcia, V. Subramanian, A. Sekowski, S. Bhattacharyya, M. W. Love, and D. L. Brasaemle
The Amino and Carboxyl Termini of Perilipin A Facilitate the Storage of Triacylglycerols
J. Biol. Chem.,
February 27, 2004;
279(9):
8409 - 8416.
[Abstract]
[Full Text]
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Y. Kamisaka, N. Noda, and M. Yamaoka
Appearance of Smaller Lipid Bodies and Protein Kinase Activation in the Lipid Body Fraction Are Induced by an Increase in the Nitrogen Source in the Mortierella Fungus
J. Biochem.,
February 1, 2004;
135(2):
269 - 276.
[Abstract]
[Full Text]
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H. H. Zhang, S. C. Souza, K. V. Muliro, F. B. Kraemer, M. S. Obin, and A. S. Greenberg
Lipase-selective Functional Domains of Perilipin A Differentially Regulate Constitutive and Protein Kinase A-stimulated Lipolysis
J. Biol. Chem.,
December 19, 2003;
278(51):
51535 - 51542.
[Abstract]
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M. Paciga, C. R. McCudden, C. Londos, G. E. DiMattia, and G. F. Wagner
Targeting of Big Stanniocalcin and Its Receptor to Lipid Storage Droplets of Ovarian Steroidogenic Cells
J. Biol. Chem.,
December 5, 2003;
278(49):
49549 - 49554.
[Abstract]
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X. Nan, J.-X. Cheng, and X. S. Xie
Vibrational imaging of lipid droplets in live fibroblast cells with coherent anti-Stokes Raman scattering microscopy
J. Lipid Res.,
November 1, 2003;
44(11):
2202 - 2208.
[Abstract]
[Full Text]
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N. E. Wolins, J. R. Skinner, M. J. Schoenfish, A. Tzekov, K. G. Bensch, and P. E. Bickel
Adipocyte Protein S3-12 Coats Nascent Lipid Droplets
J. Biol. Chem.,
September 26, 2003;
278(39):
37713 - 37721.
[Abstract]
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D. Marchesan, M. Rutberg, L. Andersson, L. Asp, T. Larsson, J. Boren, B. R. Johansson, and S.-O. Olofsson
A Phospholipase D-dependent Process Forms Lipid Droplets Containing Caveolin, Adipocyte Differentiation-related Protein, and Vimentin in a Cell-free System
J. Biol. Chem.,
July 11, 2003;
278(29):
27293 - 27300.
[Abstract]
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C. Sztalryd, G. Xu, H. Dorward, J. T. Tansey, J. A. Contreras, A. R. Kimmel, and C. Londos
Perilipin A is essential for the translocation of hormone-sensitive lipase during lipolytic activation
J. Cell Biol.,
June 23, 2003;
161(6):
1093 - 1103.
[Abstract]
[Full Text]
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D. DiDonato and D. L. Brasaemle
Fixation Methods for the Study of Lipid Droplets by Immunofluorescence Microscopy
J. Histochem. Cytochem.,
June 1, 2003;
51(6):
773 - 780.
[Abstract]
[Full Text]
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P. Targett-Adams, D. Chambers, S. Gledhill, R. G. Hope, J. F. Coy, A. Girod, and J. McLauchlan
Live Cell Analysis and Targeting of the Lipid Droplet-binding Adipocyte Differentiation-related Protein
J. Biol. Chem.,
April 25, 2003;
278(18):
15998 - 16007.
[Abstract]
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J. T. Tansey, A. M. Huml, R. Vogt, K. E. Davis, J. M. Jones, K. A. Fraser, D. L. Brasaemle, A. R. Kimmel, and C. Londos
Functional Studies on Native and Mutated Forms of Perilipins. A ROLE IN PROTEIN KINASE A-MEDIATED LIPOLYSIS OF TRIACYLGLYCEROLS IN CHINESE HAMSTER OVARY CELLS
J. Biol. Chem.,
February 28, 2003;
278(10):
8401 - 8406.
[Abstract]
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A. Garcia, A. Sekowski, V. Subramanian, and D. L. Brasaemle
The Central Domain Is Required to Target and Anchor Perilipin A to Lipid Droplets
J. Biol. Chem.,
January 3, 2003;
278(1):
625 - 635.
[Abstract]
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H. H. Zhang, M. Halbleib, F. Ahmad, V. C. Manganiello, and A. S. Greenberg
Tumor Necrosis Factor-{alpha} Stimulates Lipolysis in Differentiated Human Adipocytes Through Activation of Extracellular Signal-Related Kinase and Elevation of Intracellular cAMP
Diabetes,
October 1, 2002;
51(10):
2929 - 2935.
[Abstract]
[Full Text]
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M. Imamura, T. Inoguchi, S. Ikuyama, S. Taniguchi, K. Kobayashi, N. Nakashima, and H. Nawata
ADRP stimulates lipid accumulation and lipid droplet formation in murine fibroblasts
Am J Physiol Endocrinol Metab,
October 1, 2002;
283(4):
E775 - E783.
[Abstract]
[Full Text]
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S. Miura, J.-W. Gan, J. Brzostowski, M. J. Parisi, C. J. Schultz, C. Londos, B. Oliver, and A. R. Kimmel
Functional Conservation for Lipid Storage Droplet Association among Perilipin, ADRP, and TIP47 (PAT)-related Proteins in Mammals, Drosophila, and Dictyostelium
J. Biol. Chem.,
August 23, 2002;
277(35):
32253 - 32257.
[Abstract]
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S. C. Souza, K. V. Muliro, L. Liscum, P. Lien, M. T. Yamamoto, J. E. Schaffer, G. E. Dallal, X. Wang, F. B. Kraemer, M. Obin, et al.
Modulation of Hormone-sensitive Lipase and Protein Kinase A-mediated Lipolysis by Perilipin A in an Adenoviral Reconstituted System
J. Biol. Chem.,
March 1, 2002;
277(10):
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[Abstract]
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N. B. Cole, D. D. Murphy, T. Grider, S. Rueter, D. Brasaemle, and R. L. Nussbaum
Lipid Droplet Binding and Oligomerization Properties of the Parkinson's Disease Protein alpha -Synuclein
J. Biol. Chem.,
February 15, 2002;
277(8):
6344 - 6352.
[Abstract]
[Full Text]
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T. Raclot, C. Holm, and D. Langin
Fatty acid specificity of hormone-sensitive lipase: implication in the selective hydrolysis of triacylglycerols
J. Lipid Res.,
December 1, 2001;
42(12):
2049 - 2057.
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A. Rudich, S. Vanounou, K. Riesenberg, M. Porat, A. Tirosh, I. Harman-Boehm, A. S. Greenberg, F. Schlaeffer, and N. Bashan
The HIV Protease Inhibitor Nelfinavir Induces Insulin Resistance and Increases Basal Lipolysis in 3T3-L1 Adipocytes
Diabetes,
June 1, 2001;
50(6):
1425 - 1431.
[Abstract]
[Full Text]
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J. T. Tansey, C. Sztalryd, J. Gruia-Gray, D. L. Roush, J. V. Zee, O. Gavrilova, M. L. Reitman, C.-X. Deng, C. Li, A. R. Kimmel, et al.
Perilipin ablation results in a lean mouse with aberrant adipocyte lipolysis, enhanced leptin production, and resistance to diet-induced obesity
PNAS,
May 22, 2001;
98(11):
6494 - 6499.
[Abstract]
[Full Text]
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A. G. Ostermeyer, J. M. Paci, Y. Zeng, D. M. Lublin, S. Munro, and D. A. Brown
Accumulation of Caveolin in the Endoplasmic Reticulum Redirects the Protein to Lipid Storage Droplets
J. Cell Biol.,
March 5, 2001;
152(5):
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[Abstract]
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N. E. Wolins, B. Rubin, and D. L. Brasaemle
TIP47 Associates with Lipid Droplets
J. Biol. Chem.,
February 9, 2001;
276(7):
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[Abstract]
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L. Izem and R. E. Morton
Cholesteryl Ester Transfer Protein Biosynthesis and Cellular Cholesterol Homeostasis Are Tightly Interconnected
J. Biol. Chem.,
July 6, 2001;
276(28):
26534 - 26541.
[Abstract]
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Copyright © 2000 by the American Society for Biochemistry and Molecular Biology.
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