Purification of biological substances
First Claim
Patent Images
1. A process for purifying one or more target substances from a source liquid, said process comprising:
- (a) contacting the source liquid with one or more chromatography resins;
(b) maintaining the contact for a sufficient period of time and under conditions suitable for the resins to bind a predetermined fraction of the target substance(s);
(c) circulating the chromatography resin(s) in a cross-flow filter wherein one or more of the following steps is performed;
(i) separating unbound substances from the chromatography-resin-bound target substance(s) by concentration and/or diafiltration;
(ii) eluting the target substance(s) from the chromatography resin(s); and
(iii) separating the target substance(s) from the chromatography resin(s) by concentration and/or diafiltration;
(d) recovering the target substance(s); and
(e) optionally concentrating and/or diafiltering the target substance(s).
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Abstract
A process and apparatus for purifying one or more target substances from a source liquid, employing one or more cross-flow filter elements, and one or more types of chromatography resins, in combination, to provide purification with advantageous yield, product purity, and cost- and time-efficiency.
87 Citations
61 Claims
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1. A process for purifying one or more target substances from a source liquid, said process comprising:
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(a) contacting the source liquid with one or more chromatography resins;
(b) maintaining the contact for a sufficient period of time and under conditions suitable for the resins to bind a predetermined fraction of the target substance(s);
(c) circulating the chromatography resin(s) in a cross-flow filter wherein one or more of the following steps is performed;
(i) separating unbound substances from the chromatography-resin-bound target substance(s) by concentration and/or diafiltration;
(ii) eluting the target substance(s) from the chromatography resin(s); and
(iii) separating the target substance(s) from the chromatography resin(s) by concentration and/or diafiltration;
(d) recovering the target substance(s); and
(e) optionally concentrating and/or diafiltering the target substance(s). - View Dependent Claims (7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 18, 19, 20, 21, 22, 23, 24, 26, 27, 28, 29, 30, 31, 33, 34)
(a) separating a clotting factor from a clotting factor-containing culture of bacteria, yeast, fungus, insect cells, or animal cells;
(b) separating a clotting factor from ascites fluid;
(c) separating a clotting factor from clostrum;
(d) separating a clotting factor from milk;
(e) separating a clotting factor from plasma;
(f) separating a clotting factor from serum;
(g) separating a clotting factor from whey;
(h) separating a clotting factor from whole blood;
(i) separating a fermentation fluid into its constituent parts;
(j) separating a glycoprotein from a glycoprotein-containing culture of bacteria, yeast, fungus, insect cells, or animal cells;
(k) separating a glycoprotein from a viral culture;
(l) separating a glycoprotein from ascites fluid; and
(m) separating a glycoprotein from clostrum;
(n) separating a glycoprotein from milk;
(o) separating a glycoprotein from plasma or a plasma fraction;
(p) separating a glycoprotein from serum;
(q) separating a glycoprotein from tissue;
(r) separating a glycoprotein from whey;
(s) separating a glycoprotein from whole blood;
(t) separating a hormone from a hormone-containing culture of bacteria, yeast, fungus, insect cells, or animal cells;
(u) separating a hormone from ascites fluid;
(v) separating a hormone from clostrum;
(w) separating a hormone from milk;
(x) separating a hormone from plasma or a plasma fraction;
(y) separating a hormone from serum;
(z) separating a hormone from tissue;
(aa) separating a hormone from whey;
(bb) separating a hormone from whole blood;
(cc) separating a liquid to produce a vaccine or vaccine component;
(dd) separating a plasma or a plasma fraction into its constituent parts;
(ee) separating a protein from a protein-containing culture of bacteria, yeast, fungus, insect cells, or animal cells;
(ff) separating a viral culture fluid into its constituent parts;
(gg) separating an antigen from a viral culture containing same;
(hh) separating an antigen from an antigen-containing culture of bacteria, yeast, fungus, insect cells, or animal cells;
(ii) separating an immunoglobulin from an immunoglobulin-containing culture of bacteria, yeast, fungus, insect cells, or animal cells;
(jj) separating an immunoglobulin from ascites fluid;
(kk) separating an immunoglobulin from clostrum;
(ll) separating an immunoglobulin from milk;
(mm) separating an immunoglobulin from plasma or a plasma fraction;
(nn) separating an immunoglobulin from serum;
(oo) separating an immunoglobulin from whey;
(pp) separating an immunoglobulin from whole blood;
(qq) separating an insect cell culture fluid into its constituent parts;
(rr) separating clostrum into its constituent parts;
(ss) separating milk into its constituent parts; and
(tt) separating whey into its constituent parts.
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31. The method according to claim 1 or 2 wherein two or more resins are used to purify two or more target substances simultaneously.
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33. The method according to any of claims 1-6 wherein the chromatography resin comprises resin particles, wherein at least some of the resin particles comprise multiple ligands thereon, whereby different target substances may be bound by a single resin particle.
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34. The method according to any of claims 1-6, wherein said contacting of the liquid and the chromatography resin(s) comprises adding the liquid to a constant volume reservoir comprising chromatographic resin therein.
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2. A process for purifying one or more target substances from a source liquid, said process comprising:
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(a) contacting the source liquid with a chromatography resin;
(b) maintaining the contact for a sufficient period of time and under conditions suitable for the chromatography resin to bind a predetermined fraction of target substance(s);
(c) circulating the chromatography resin in a cross-flow filter wherein one or more of the following steps is performed;
(i) separating unbound substances from the chromatography-resin-bound target substance(s) by concentration and/or diafiltration;
(ii) eluting the target substance(s) from the chromatography resin; and
(iii) separating the target substance(s) from the chromatography resin by concentration and/or diafiltration;
(d) recovering the target substance(s); and
(e) optionally concentrating and/or diafiltering the target substance(s).
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3. A process for depleting one or more contaminants from a source liquid, said process comprising:
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(a) contacting the source liquid with one or more chromatography resins;
(b) maintaining the contact for a sufficient period of time and under conditions suitable for the resins to bind a predetermined fraction of the contaminant(s);
(c) circulating the chromatography resin(s) in a cross-flow filter wherein the unbound substances are separated from the chromatography-resin-bound contaminant(s) by concentration and/or diafiltration. - View Dependent Claims (17, 25, 32)
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4. A process for depleting one or more target substances from a source liquid, said process comprising:
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(a) contacting the source liquid with a chromatography resin;
(b) maintaining the contact for a sufficient period of time and under conditions suitable for the resins to bind a predetermined fraction of one or more contaminants;
(c) circulating the chromatography resin in a cross-flow filter to separate unbound substances from the chromatography-resin-bound target substance(s) by concentration and/or diafiltration.
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5. A process for depleting one or more contaminants from a source liquid, said process comprising:
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(a) contacting the source liquid with one or more chromatography resins;
(b) maintaining the contact for a sufficient period of time under conditions suitable for the resins to bind a predetermined fraction of one or more contaminant(s);
(c) circulating the chromatography resin(s) in a cross-flow filter wherein one or more of the following steps is performed;
(i) separating unbound substances from the chromatography-resin-bound contaminant(s) by concentration and/or diafiltration;
(ii) recovering the contaminant(s)-depleted source liquid; and
(iii) optionally concentrating and/or diafiltering of the source liquid.
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6. A process for depleting one or more contaminants from a source liquid, said process comprising:
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(a) contacting the source liquid with a chromatography resin;
(b) maintaining the contact for a sufficient period of time and under conditions suitable for the resins to bind a predetermined fraction of one or more contaminant(s);
(c) circulating the chromatography resin in a cross-flow filter to separate unbound substances from the chromatography-resin-bound contaminant(s) by concentration and/or diafiltration;
(d) recovering the contaminant(s)-depleted source liquid; and
(e) optionally concentrating and/or diafiltration of the source liquid.
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35. A method of purifying a liquid comprising one or more target substances, the method comprising
(a) contacting the liquid with a chromatography resin to bind the target substance(s) thereto; - and
(b) cross-flow filtering the target substance(s)-bound chromatography resin under elution conditions to recover a filtrate comprising the target substance(s). - View Dependent Claims (37, 38, 39)
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36. A method of purifying a liquid purifying comprising one or more target substance(s), the method comprising the steps of contacting the liquid with a chromatography resin to bind one or more non-target substances thereto, and cross-flow filtering the non-target substance(s)-bound chromatography resin under concentration and/or diafiltration conditions to recover a filtrate comprising the target substance(s).
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40. A method of purifying one or more target substances from a source liquid comprising one or more bioactive contaminants, the method comprising the steps of:
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(a) contacting the source liquid with a chromatography resin;
(b) maintaining the contact for a sufficient period of time and under conditions suitable for the resin to bind a predetermined fraction of the target substance(s);
(c) circulating the chromatography resin in a cross-flow filter wherein one or more of more of the following steps is performed;
(i) concentration and/or diafiltration of the chromatography resin;
(ii) elution of the target substance(s) from the chromatography resin; and
(iii) separation of the target substance(s) from the chromatography resin by concentration and/or diafiltration;
(d) recovering the target substance(s);
(e) optionally concentrating the target substance(s); and
(f) inactivating the bioactive contaminant(s) during said method. - View Dependent Claims (41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52)
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53. A process for purifying one or more target substances from a source liquid comprising the target substance(s) together with one or more viral species, the process comprising:
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(a) contacting the source liquid with a viral inactivation agent to inactivate the viral species;
(b) contacting the source liquid with a chromatography resin;
(c) incubating the source liquid with the chromatography resin for a sufficient contact time to bind a desired fraction of the target substance(s);
(d) circulating the chromatography resin in a cross-flow filter apparatus wherein one or more of the following steps is performed;
(i) concentrating the chromatography resin and separating one or more contaminants from the chromatography-resin-bound target substance(s) by diafiltration in a filter comprising a membrane effective to retain the resin and pass species that are not bound to the resin;
(ii) eluting the target substance(s) from the chromatography resin by contact with an elution membrane effective to retain the resin and pass the target substance(s); and
(iii) separating the target substance(s) from the chromatography resin by diafiltration;
(e) recovering the target substance(s); and
(f) optionally concentrating the target substance(s).
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54. A process for purifying one or more target substances from a source liquid containing the target substance(s), the process comprising:
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(a) contacting the source liquid with a chromatography resin;
(b) circulating the chromatography resin in at least one cross-flow filter apparatus wherein one or more of the following steps is performed;
(i) optionally concentrating the target substance(s) and chromatography resin in the source liquid by tangential flow filtration;
(ii) diafiltering the chromatography resin in a filter comprising a membrane effective to retain the resin and pass species that are not bound to the resin;
(iii) eluting the target substance(s) from the chromatography resin by contact with an elution membrane effective to retain the resin and pass the target substance(s);
(iv) separating the target substance(s) from the chromatography resin by concentration and/or diafiltration of the resin recovering the target substance(s); and
(v) optionally concentrating the target substance(s). - View Dependent Claims (55, 56)
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57. A method of separating a liquid in a separation system, the method comprising:
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(a) providing a bioreactor, a chromatographic resin reservoir, a first cross-flow filtration module, a second cross-flow filtration module, and a third cross-flow filtration module;
(b) clarifying perfusate of the bioreactor in the first cross-flow filtration module to yield a permeate;
(c) flowing the permeate to the chromatographic resin reservoir;
(d) flowing chromatographic resin and permeate to the second cross-flow filtration module for concentration, diafiltration and elution to yield an eluate; and
(e) flowing the eluate to the third cross-flow filtration module for concentration and diafiltration therein.
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58. A method of separating a liquid in a separation system, the method comprising:
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(a) providing a bioreactor, a chromatographic resin reservoir, a first cross-flow filtration module, and a second cross-flow filtration module;
(b) optionally, clarifying the fluid from the bioreactor;
(c) flowing the fluid to the chromatographic resin reservoir;
(d) flowing chromatographic resin and fluid to the first cross-flow filtration module for concentration and/or diafiltration and elution to yield an eluate; and
(e) flowing the eluate to the second cross-flow filtration module for concentration and/or diafiltration therein.
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59. A method for purifying multiple target substances from a source liquid comprising said target substances, utilizing multiple cross-flow filters and multiple chromatography resins the method comprising:
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(a) contacting the source liquid with a first chromatography resin;
(b) circulating the first chromatography resin across a first cross-flow filter wherein the following steps are performed;
(i) optionally, concentrating a first target substance and the first chromatography resin in the source liquid by tangential flow filtration;
(ii) diafiltering the first chromatography resin in a filter comprising a membrane effective to retain the resin and pass species that are not bound to the resin;
(iii) eluting the first target substance from the chromatography resin by contact with an elution membrane effective to retain the resin and pass the target substance;
(c) separating the first target substance from the first chromatography resin by concentration and/or diafiltration of the first resin recovering the first target substance; and
(d) optionally, concentrating the first target substance;
(e) contacting the permeate of the first cross-flow filter with a second chromatography resin to isolate a second target substance;
(f) circulating the second chromatography resin across a second cross-flow filter wherein one or more of the following steps is performed;
(i) optionally concentrating the second target substance and the second chromatography resin in the permeate of the first cross-flow filter by tangential flow filtration;
(ii) diafiltering the second chromatography resin in a filter comprising a membrane effective to retain the resin and pass species that are not bound to the resin;
(iii) eluting the second target substance from the second chromatography resin by contact with an elution membrane effective to retain the resin and pass the second target substance;
(g) separating the second target substance from the second chromatography resin by concentration and/or diafiltration of the second resin recovering the second target substance; and
(h) optionally concentrating the second target substance; and
(i) sequentially repeating steps sequence of steps (e), (f), (g), and (h) with the permeate generated by the previous cross-flow filter with a subsequent chromatography resin until all the desired target substances are obtained. - View Dependent Claims (60, 61)
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Specification