WO 2012/177639 A2 27 December 2012 (27.12.2012) P O P C T
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(12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (10) International Publication Number (43) International Publication Date WO 2012/177639 A2 27 December 2012 (27.12.2012) P O P C T (51) International Patent Classification: (81) Designated States (unless otherwise indicated, for every C12N 15/87 (2006.01) kind of national protection available): AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, (21) International Application Number: CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, PCT/US20 12/043 148 DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, (22) International Filing Date: HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, 19 June 2012 (19.06.2012) KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, (25) Filing Language: English OM, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SC, SD, (26) Publication Language: English SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. (30) Priority Data: 61/499,757 22 June 201 1 (22.06.201 1) (84) Designated States (unless otherwise indicated, for every 61/639,333 27 April 2012 (27.04.2012) kind of regional protection available): ARIPO (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, SZ, TZ, (71) Applicant (for all designated States except US): UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, ALNYLAM PHARMACEUTICALS, INC. [US/US]; TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, DK, 300 Third Street, Cambridge, Massachusetts 02142 (US). EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, (72) Inventors; and TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, (75) Inventors/ Applicants (for US only): HINKLE, Gregory ML, MR, NE, SN, TD, TG). [US/US]; c/o Alnylam Pharmaceuticals, Inc., 300 Third Street, Cambridge, Massachusetts 02142 (US). BETTEN- Published: COURT, Brian [US/US]; c/o Alnylam Pharmaceuticals, — without international search report and to be republished Inc., 300 Third Street, Cambridge, Massachusetts 02142 upon receipt of that report (Rule 48.2(g)) (US). — with sequence listing part of description (Rule 5.2(a)) (74) Agent: WARD, Donna T.; Dt Ward, P.C., 292 Main Street, Suite 2, Groton, Massachusetts 01450 (US). < l © (54) Title: BIOPROCESSING AND BIOPRODUCTION USING AVIAN CELL LINES (57) Abstract: The invention relates to compositions and methods of modulating the status, activity or expression of avian tran- ¾ scripts in the process of bioproduction. In one aspect, the invention provides for a method for producing a biological product from S an avian host cell. BIOPROCESSING AND BIOPRODUCTION USING AVIAN CELL LINES CROSS REFERENCE TO RELATED APPLICATIONS This application claims the benefit of U.S. Provisional Patent Application No. 61/499,757, filed June 22, 201 1, entitled "BIOPROCESSING AND BIOPRODUCTION USING AVIAN CELL LINES" and U.S. Provisional Patent Application No. 61/639,333, filed April 27, 2012, entitled "BIOPROCESSING AND BIOPRODUCTION USING AVIAN CELL LINES" the contents, each of which is incorporated by reference in its entirety. REFERENCE TO SEQUENCE LISTING The instant application contains a "lengthy" Sequence Listing which has been submitted via CD-R in lieu of a printed paper copy, and is hereby incorporated by reference in its entirety. This sequence listing text file which is part of the originally filed subject matter has the following features: File name: 200212pc.TXT; File size: 622,641,152 Bytes; Date created: May 22, 2012. These CD-Rs are labeled "CRF," "Copy 1,", "Copy 2," and "Copy 3" respectively, and each contains only one identical file, as identified immediately above. REFERENCE TO LENGTHY TABLE The specification includes Lengthy Table 1. Lengthy Table 1 has been submitted via EFS-Web in electronic format as follows: File name: AvianTranscripts.PDF; Date created: June 19, 2012; File size: 1,928,702 Bytes, and is incorporated herein by reference in its entirety. Please refer to the end of the specification for access instructions. FIELD OF THE INVENTION The invention relates generally to avian transcriptomes, organized transcriptomes and systems and methods (including methods of doing business) using transcriptomes for the design of targeting constructs useful in the production of biomolecules in avian cells and avian cell cultures. The invention further relates to engineering avian cells and cell lines for more effective and efficient production of biological products and biomolecules. BACKGROUND OF THE INVENTION Cell culture and bioprocessing techniques are used to manufacture a wide range of biological products, including biopharmaceuticals, biofuels, metabolites, vitamins and nutraceuticals. A number of strategies have been developed to enhance productivity, yield, efficiency, and other aspects of cell culture bioprocesses in order to facilitate industrial scale production and meet applicable standards for product quality and consistency. Traditional strategies for optimizing cell culture bioprocesses involve adjusting physical and biochemical parameters, such as culture media (e.g., pH, nutrients) and conditions (e.g., temperature, duration), and selecting host cells having desirable phenotypes. More recently, genetic approaches have been developed for optimizing cell culture bioprocesses by introducing recombinant DNA into host cells, where the DNA encodes an exogenous protein that influences production of a biological product or regulates expression of an endogenous protein that influences production of the biological product. However, such methods require costly and time-consuming laboratory manipulations and can be incompatible with certain genes, proteins, host cells, and biological products. Avian cells have been used in the production of biomolecules, particularly complex proteins such as antibodies. However, little is known about the coordinate expression and modulation of genes in these cells, and thus, optimized and targeted modulation of bioprocesses of these cells is unavailable presently. Accordingly, there is a need in the art for new genetic approaches for optimizing cell culture bioprocesses involving a wide range of host cells, including avian cells, and biological products produced in these cells. SUMMARY OF THE INVENTION The invention is based at least in part on the surprising discovery that Targeting Constructs (TCs) can be applied to cells in culture to effect potent, durable modulation of gene expression, such that the quality and quantity of biological product that is produced by an avian host cell can be improved without the need for extensive cell line engineering. As such, in a first aspect, the invention provides compositions and methods for producing a biological product from a host cell. In one embodiment the host cell is an avian cell or cell derived from avian cells. In various embodiments, the biological product is a polypeptide (including enzymes), a metabolite, a nutraceutical, a chemical intermediate, abiofuel, a food additive, or an antibiotic (e.g., antiviral, antibacterial, antifungal, and the like, etc). The methods of the present invention also find utility in the fields of chemical manufacture, textiles and electronics. The details of various embodiments of the invention are set forth in the description below. Other features, objects, and advantages of the invention will be apparent from the description and the drawings, and from the claims. DETAILED DESCRIPTION OF THE INVENTION The invention provides methods for producing a biological product in an avian host cell, the methods including the steps of contacting the cell with at least one or more Targeting Construct (TC), maintaining the avian cell for a time sufficient to modulate expression of the target gene or alter a cellular process, wherein the modulation and/or alteration enhances production of the biological product, and recovering the biological product from the cell, cell culture or supernatant. The description provided herein discloses how to make and use targeting constructs (TCs) to produce a biological product in an avian host cell or cell culture according to methods provided herein. Also disclosed are cell culture reagents and compositions comprising the targeting constructs and kits for carrying out the disclosed methods. Also described herein are compositions and methods of modulation the status, activity, or expression of Avian Transcripts (ATs) in an avian cell (or cell culture), tissue or organism. Further provided are compositions and methods for treating pathological conditions and diseases in a mammal using a biological product or targeting construct of the present invention. Further disclosed are screening methods, kits and assays which are designed to utilize the cellular pathways and systems associated with avian transcripts and their manipulation in bioprocessing and bioproduction. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Although methods and materials similar or equivalent to those described herein can be used in the practice or testing of the targeting constructs (TC) and methods featured in the invention, suitable methods and materials are described below. The terminology used herein is for the purpose of describing particular embodiments only, and is not intended to limit the scope of the present invention, which