Lipoprotein lipase suppression by endotoxin-induced mediator (shock assay)
First Claim
1. A proteinaceous mediator originating from invasive stimuli treated macrophage cells having the following characteristics;
- capable of suppressing the activity of lipoprotein lipase, acetyl coenzyme A carboxylase and fatty acid synthetase, and capable of inhibiting the growth and differentiation of erythroid-committed cells.
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Accused Products
Abstract
A mediator substance exhibiting inhibitory effect upon anabolic enzyme activity in mammals, is prepared by a method comprising gathering a sample of macrophage cells from a mammal, incubating a portion of the macrophage cells with a stimulating material that is associated with an invasive event, and inducing the macrophage cells to produce the mediator substance. The stimulator materials, for example, may include endotoxins, trypanosomes and the like, and the enzymes that may be observed range from lipoprotein lipase, acetyl Coenzyme A carboxylase and fatty acid synthetase, to the inducers for red blood cells growth and differentiation. The mediator substance may be utilized to raise antibodies which would in turn find utility in testing for the presence or amount of various invasive stimuli, such as infection and the like. Testing procedures and appropriate materials in kit form are also contemplated. The mediator substance may likewise be utilized in procedures as a screening agent, to test for potentially effective anti-shock agents or chemicals.
189 Citations
42 Claims
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1. A proteinaceous mediator originating from invasive stimuli treated macrophage cells having the following characteristics;
- capable of suppressing the activity of lipoprotein lipase, acetyl coenzyme A carboxylase and fatty acid synthetase, and capable of inhibiting the growth and differentiation of erythroid-committed cells.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for preparing a mediator comprising:
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A. gathering a sample of macrophage cells from a mammal; B. incubating a portion of said macrophage cells with a stimulator material associated with an invasive event for a mammal; C. inducing said macrophage cells to produce said mediator; and D. recovering a proteinaceous mediator originating from invasive stimuli treated macrophage cells having the following characteristics;
capable of suppressing the activity of lipoprotein lipase, acetyl coenzyme A carboxylase and fatty acid Synthetase, and capable of inhibiting the growth and differtiation of erythroid-committed cells. - View Dependent Claims (11)
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12. An antibody to a mediator present in the serum of a mammal which has been subjected to invasive stimuli, the mediator to which said antibody is raised comprises a proteinaceous mediator originating from invasive stimuli treated macrophage cells having the following characteristics;
- capable of suppressing the activity of the anabolic enzymes lipoprotein lipase, acetyl Coenzyme A carboxylase and fatty acid synthetase, and inhibiting the differentiation of erythroid-committed cells.
- View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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21. A method for detecting the presence of invasive stimuli in mammals comprising measuring the activity of a proteinaceous mediator originating from invasive stimuli treated macrophage cells having the following characteristics;
- capable of supporessing the activity of lipoprotein lipase, acetyl coenzyme A carboxylase and fatty acid synthetase, and inhibiting the growth and differentiation of erythroid-committed cells.
- View Dependent Claims (22, 23)
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24. A method for measuring the activity of a proteinaceous mediator originating from invasive stimuli treated macrophage cells having the following characteristics;
- capable of suppressing the activity of the anabolic enzymes lipoprotein lipase, acetyl Coenzyme A carboxylase and fatty acid synthetase, and inhibiting the growth and differentiation of erythroid-committed cells, said method comprising;
A. preparing the mediator to be measured from a stimulator material known to be associated with said invasive stimulus; B. forming a labeled material by placing a detectible label on said mediator; C. isolating a bioligical sample selected from the group consisting of blood and body fluid, from a mammal suspected of harboring said invasive stimulus; D. placing said labeled material in contact with said biological sample; and E. examining said biological sample to locate said labeled material, to thereby determine the activity of said mediator. - View Dependent Claims (25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35)
- capable of suppressing the activity of the anabolic enzymes lipoprotein lipase, acetyl Coenzyme A carboxylase and fatty acid synthetase, and inhibiting the growth and differentiation of erythroid-committed cells, said method comprising;
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36. A method of testing the ability of a drug to inhibit the activity of a mediator capable of reducing the lipoprotein lipase activity in the nammalian body which comprises culturing 3T3-L1 cells in a growth media containing the mediator, adding the drug under test and thereafter testing lipoprotein lipase activity of the media, said mediator comprising a protein material originating from invasive stimuli treated macrophage cells having the following characteristics;
- capable of suppressing the activity of the anabolic enzymes lipoprotein lipase, acetyl Coenzyme A carboxylase and fatty acid synthetase, and inhibiting the growth and differentiation of erythroid-committed cells.
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37. An assay system for screening drugs and other agents for ability to inhibit production and/or activity of a mediator comprising an observable cellular test colony innoculated with said mediator said mediator being a proteinaceous mediator originating from invasive stimuli treated macrophase cells having the following characteristics;
- capable of suppressing the activity of lipoprotein lipase, acetyl Coenzyme A carboxylase and fatty acid synthetase, and inhibiting the growth and differentiation of erythroid-committed cells.
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38. A test kit for the demonstration of a mediator in serum or an aqueous medium, comprising:
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A. a predetermined amount of at least one labeled immunochemically reactive component obtained by the direct of indirect attachment of a mediator or a specific binding partner thereto, to a detectable label, said mediator comprising a protein material originating from invasive stimuli treated macrophage cells having the following characteristics;
capable of suppressing the activity of lipoprotein lipase, acetyl Coenzyme A carboxylase and fatty acid synthetase, and inhibiting the growth and differentiation of erythroid-committed cells;B. other reagents; and C. directions for use of said kit. - View Dependent Claims (39)
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40. A kit useful for detecting the presence in a mammal of a mediator which is capable of reducing lipoprotein lipase activity which comprises at least a mediator substance labeled with a detectable label, wherein said mediator comprises a protein material originating from invasive stimuli treated macrophage cells having the following characteristics;
- capable of suppressing the activity of the anabolic enzymes lipoprotein lipase, acetyl Coenzyme A carboxylase and fatty acid synthetase, and inhibiting the growth and differentiation of erythroid-committed cells.
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41. A kit useful for detecting the presence in a mammal of a mediator which is capable of reducing lipoprotein lipase activity which comprises at least a mediator antibody labeled with a detectable label, said mediator comprising a protein material originating from invasive stimuli treated macrophage cells having the following characteristics;
- capable of suppressing the activity of lipoprotein lipase, acetyl coenzyme A carboxylase and fatty acid snythetase, and capable of inhibiting the growth and differentiation of erythroid-committed cells.
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42. A kit useful for detecting the presence in a mammal of a mediator which is capable of reducing lipoprotein lipase activity which comprises at least a mediator antibody and a second antibody which is labeled with a detectable label and is reactive with said mediator antibody, said mediator comprising a protein material originating from invasive stimuli treated macrophage cells having the following characteristics;
- capable of suppressing the activity of lipoprotein lipase, acetyl Coenzyme A carboxylase and fatty acid synthetase, and inhibiting the growth and differentiation of erythroid-committed cells.
Specification