System and method for production of on-demand proteins in a portable unit for point of care delivery

Patent metadata

Field	Value
Publication number	US-10435664-B2
Application number	US-201815966609-A
Country	US
Kind code	B2
Filing date	Apr 30, 2018
Priority date	Mar 8, 2011
Publication date	Oct 8, 2019
Grant date	Oct 8, 2019

Abstract

A portable and mobile bioprocessing system and method for protein manufacturing that is compact, integrated and suited for on-demand production of any type of proteins and for delivery of the produced proteins to patients or for assay purposes. The portable system and method can also be used for efficient on-demand production of any type of protein with point-of-care delivery.

First claim

That which is claimed is:

1. A method of delivering freshly synthesized therapeutic protein exhibiting increased activity and potency to a patient, said method comprising:
delivering an on-demand cell-free synthesized therapeutic protein to a patient in need of said therapeutic protein, wherein said therapeutic protein is synthesized using a portable bioprocessing system comprising:
a production module for producing the therapeutic protein, and
a purification module for receiving the therapeutic protein from the production module and for purifying the therapeutic protein from reagents, wherein the purification module comprises:
a chromatography component for receiving the therapeutic protein from the production module and for outputting purified therapeutic protein; and
a diafiltration component for receiving the purified therapeutic protein from the chromatography component and for outputting further purified therapeutic protein, wherein the diafiltration component comprises a product section for receiving the purified therapeutic protein from the chromatography component and a buffer section for receiving a buffer solution.

2. The method of claim 1 , wherein the therapeutic protein is produced in a composition with no or reduced amounts of stabilizers, oxidation/reduction agents and/or other excipients.

3. The method of claim 1 , wherein the therapeutic protein is delivered to the patient in need of such protein within one hour after purification.

4. The method of claim 1 , wherein the therapeutic protein is delivered to the patient in need of such protein within one day after purification.

5. The method of claim 1 , wherein the therapeutic protein is delivered continuously or as a bolus to the patient in need of the protein.

6. The method of claim 1 , wherein the therapeutic protein is refrigerated at an above-freezing temperature from 0° C. to 6° C. after purification but prior to delivery.

7. The method of claim 1 , wherein a reaction mixture comprising a nucleotide template for production of a protein; monomers for the protein to be synthesized, co-factors, enzymes and reagents that are necessary for the synthesis can be introduced to the production module.

8. The method of claim 7 , wherein the enzymes and reagents that are necessary for the synthesis are ribosomes, tRNA, polymerases and transcriptional factors.

9. The method of claim 7 , wherein the reaction mixture is maintained at a pH between pH 6-9 during production of the therapeutic protein.

10. The method of claim 7 , wherein the reaction mixture is maintained at a temperature between 20° C. and 40° C. during production of the therapeutic protein.

11. The method of claim 1 , wherein the diafiltration component further comprises: a first substrate; a second substrate; and a diafiltration membrane positioned between the first and second substrates.

12. The method of claim 1 , wherein the diafiltration component comprises a flow cell.

13. The method of claim 1 , wherein the production module comprises at least one sensor for monitoring reaction parameters.

14. The method of claim 13 , wherein the at least one sensor monitors at least one of conductivity, temperature, pH, oxygen and CO 2 .

15. The method of claim 13 , wherein the at least one sensor comprises an optical chemical sensor.

16. The method of claim 1 , wherein the production module and purification module each comprise a heating and cooling element for controlling the temperature of solution inside the production module and purification module.

17. The method of claim 1 , further comprising a fluid storage and dispensing module for storing solutions used by the production module for protein expression and for storing waste product produced by the purification module.

18. The method of claim 17 , wherein the fluid storage and dispensing module also stores purified therapeutic protein output by the purification module.

19. The method of claim 1 , wherein the portable bioprocessing system further comprises a processor for controlling and/or monitoring at least one of the production module and the purification module.

20. The method of claim 1 , wherein potency/activity of the therapeutic protein is determined by the expression time in the production module.

21. The method of claim 1 , wherein potency/activity of the therapeutic protein is determined by the holding time in the purification module.

Assignees

• Univ Maryland

Inventors

• Rao Govind
• Kostov Yordan
• Tolosa Leah
• Ge Xudong
• Frey Douglas

Classifications

• C12M47/12

  Purification (C12M47/04 takes precedence) · CPC title

• C12M41/12

  of temperature (controlling the temperature of chemical or physical processes B01J19/0013, heating or cooling apparatus for laboratory use B01L7/00) · CPC title

• C12M47/10 Primary

  Separation or concentration of fermentation products (bioreactors combined with means for distillation or extraction of liquid fuel C12M43/02) · CPC title