Process for purifying a compound
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Abstract
The present invention relates to a process for purifying a hydrophobic or amphiphilic compound, by first mixing a starting material containing the hydrophobic or amphiphilic compound with a first polymeric material, water and at least one of a second polymeric material and a surfactant, wherein the first polymeric material and the second polymeric material and/or surfactant are immiscible in the resulting primary aqueous solution. The process further comprises maintaining the primary aqueous solution for a period of time sufficient for essentially separating the phases formed, and then removing the phase containing the main portion of the hydrophobic or amphiphilic compound and the second polymeric material and/or surfactant. The second polymeric material and/or surfactant are separated from the hydrophobic or amphiphilic compound, and subsequently recycled to the initial mixing step. The present invention further relates to a composition for use in purification of apolipoprotein A (ApoA) or apolipoprotein E (ApoE), said composition comprising a first polymeric material and a surfactant, said first polymeric material and surfactant being immiscible in the primary aqueous solution obtained after mixing with water. ApoA or ApoE produced by the inventive process can be used for the manufacture of a medicament in the treatment of atherosclerosis and cardiovascular diseases, sepsis or peripheral atherosclerosis as well as in a method for treatment of atherosclerosis and cardiovascular diseases, sepsis or peripheral atherosclerosis when administered in a therapeutically effective amount.
13 Citations
73 Claims
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1-36. -36. (Cancelled).
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37. A process for purifying recombinantly produced apolipoprotein ApoA-I Milano, comprising
a) mixing, in arbitrary order, a starting material containing the apolipoprotein, a first hydrophilic polymeric material, water, a second amphiphilic polymeric material and a surfactant, the first polymeric material and the second polymeric material being immiscible in the resulting primary aqueous solution; -
b) maintaining the primary aqueous solution for a period of time sufficient for essentially separating the solution into phases;
c) removing a phase containing a main portion of the apolipoprotein and the second polymeric material;
d) separating the apolipoprotein from the second polymeric material; and
subsequentlye) recycling the separated second polymeric material to the initial mixing step (a). - View Dependent Claims (38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64)
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65. A process for purifying recombinantly produced apolipoprotein ApoA-I Milano, comprising
a) mixing, in arbitrary order, a starting material containing the apolipoprotein, a first hydrophilic polymeric material, water, a second amphiphilic polymeric material and a surfactant, the first polymeric material and the second polymeric material being immiscible in the resulting primary aqueous solution; -
b) maintaining the primary aqueous solution for a period of time sufficient for essentially separating the solution into phases;
c) removing a phase containing a main portion of the apolipoprotein, the second polymeric material and the surfactant;
d) separating the apolipoprotein from the second polymeric material and the surfactant; and
subsequentlye) recycling the second polymeric material and the surfactant to the initial mixing step (a). - View Dependent Claims (66, 67, 68, 69, 70, 71, 72)
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73. A process for purifying recombinantly produced apolipoprotein ApoA-I Milano, comprising
a) mixing, in arbitrary order, a starting material containing the apolipoprotein, a first hydrophilic polymeric material, water and a surfactant, the first polymeric material and the surfactant being immiscible in the resulting primary aqueous solution; -
b) maintaining the primary aqueous solution for a period of time sufficient for essentially separating the solution into two phases;
c) removing a phase containing a main portion of the apolipoprotein and the surfactant;
d) separating the apolipoprotein from the surfactant; and
subsequently e) recycling the surfactant to the initial mixing step (a).
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Specification