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Regulation of Lipoprotein Lipase Activity and MRNA Content in Rat Epididymal Adipose Tissue in Vitro by Recombinant Tumour Necrosis Factor

Overview
Journal Biochem J
Specialty Biochemistry
Date 1990 Jul 1
PMID 2198021
Citations 8
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Abstract

Tumour necrosis factor (TNF) has previously been shown to decrease lipoprotein lipase (LPL) activity and mRNA levels in 3T3-L1 cells and in adipose tissue from rats and guinea pigs when injected in vivo, but not to alter LPL activity in human adipocytes incubated in vitro. The effect of recombinant human TNF on LPL activity and mRNA levels in rat epididymal adipose tissue incubated in vitro was examined. LPL activity and mRNA levels fell in adipose tissue taken from fed rats and incubated in Krebs-Henseleit bicarbonate medium with glucose. The addition of insulin and dexamethasone prevented these falls. TNF (400 ng/ml) produced a fall of approx. 50% in LPL activity after 2 h of incubation and of approx. 30% in LPL mRNA levels after 3 h. TNF did not decrease LPL activity in isolated adipocytes. These results demonstrate that rat adipose tissue incubated in vitro is responsive to TNF whereas isolated adipocytes are not.

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References
1.
Ogawa H, Nielsen S, Kawakami M . Cachectin/tumor necrosis factor and interleukin-1 show different modes of combined effect on lipoprotein lipase activity and intracellular lipolysis in 3T3-L1 cells. Biochim Biophys Acta. 1989; 1003(2):131-5. DOI: 10.1016/0005-2760(89)90246-4. View

2.
Obregon M, Jacobsson A, Kirchgessner T, Schotz M, Cannon B, Nedergaard J . Postnatal recruitment of brown adipose tissue is induced by the cold stress experienced by the pups. An analysis of mRNA levels for thermogenin and lipoprotein lipase. Biochem J. 1989; 259(2):341-6. PMC: 1138516. DOI: 10.1042/bj2590341. View

3.
Ashby P, Tolson A, Robinson D . The heterogeneity of the lipoprotein lipase of rat epididymal adipose tissue. Biochem J. 1978; 171(2):305-11. PMC: 1183958. DOI: 10.1042/bj1710305. View

4.
Auffray C, Rougeon F . Purification of mouse immunoglobulin heavy-chain messenger RNAs from total myeloma tumor RNA. Eur J Biochem. 1980; 107(2):303-14. DOI: 10.1111/j.1432-1033.1980.tb06030.x. View

5.
Kawakami M, Cerami A . Studies of endotoxin-induced decrease in lipoprotein lipase activity. J Exp Med. 1981; 154(3):631-9. PMC: 2186462. DOI: 10.1084/jem.154.3.631. View