Navigation Links
First production of human monoclonal antibodies in chicken eggs published in Nature Biotechnology

Chicken-produced antibodies demonstrate enhanced cell killing compared to conventionally produced anti-cancer antibodies

Origen Therapeutics today announced the first published scientific report of fully functional, human sequence monoclonal antibodies (mAbs) produced in chickens. The antibodies were expressed solely in the chicken oviduct and deposited into egg white in concentrations of 1-3 milligrams per egg. Moreover, antibodies produced in this manner demonstrated 10-100 fold greater cell-killing ability (ADCC) compared to therapeutic antibodies produced by conventional cell culture methods.

The new report was published in the September issue of Nature Biotechnology by researchers from Origen Therapeutics and their collaborators at Medarex, Texas A&M University and the University of California, Los Angeles. A research brief commenting on the potential impact of this development for the production of human therapeutic proteins was also published in the September issue of Nature Medicine.

"This work demonstrates the potential for producing therapeutic proteins with enhanced properties in the eggs of chickens as an alternative to established mammalian cell culture systems," said Robert J. Etches, Ph.D., D. Sc., Origen Therapeutics vice president, research. "Antibodies produced by this method had very similar physical and biological characteristics to those produced in CHO cells, including nearly identical binding curves, similar affinities, and an equal ability to be internalized by antigen on prostate cancer cells. At the same time, chicken-produced antibodies lacked the sugar residue, fucose, which greatly increases their cell-killing activity compared to CHO-produced antibodies."

To create the antibody-producing chickens, the researchers first inserted into chicken embryonic stem cells the genes encoding the antibody and the regulatory sequences restricting its deposition to egg white. The stem cells were then introduced into
'"/>

Source:emm4@pacbell.net


Page: 1 2 3

Related biology news :

1. Timing is everything: First step in protein building revealed
2. Emory Eye Center Implants Its First Retinal Chips In Patients With Retinitis Pigmentosa
3. First atlas of key brain genes could speed research on cancer, neurological diseases
4. First-ever Compounds To Target Only Metastatic Cells Are Highly Effective Against Breast, Prostate, And Colon Cancers
5. NYCs First Rapid HIV Drug-resistant AIDS Case Prompts Call to Step Up HIV Prevention
6. First real-time view of developing neurons reveals surprises, say Stanford researchers
7. Breast-Cancer Risk Linked to Exposure to Traffic Emissions at Menarche, First Birth
8. Mayo Clinic Researchers Create Obedient Virus; First Step To Use Measles Virus Against Cancer
9. First frozen egg baby born in Canada
10. Human Cells Filmed Instantly Messaging for First Time
11. First North American Encapsulated Islet Transplant without Long-term Immune Suppression into a Patient with Type 1 Diabetes
Post Your Comments:
(Date:7/31/2015)... , Kina, 31. juli 2015 Den 10. ... afholdt af BGI fra den 22. - 25. oktober i ... Konferencen fejrer sin 10-års fødselsdag i år. Siden starten ... indflydelsesrige årlige møder på ,omik,-feltet, og er en af ... ICG-10 fokuserer på nylige gennembrud og fremskridt ...
(Date:7/31/2015)... julio de 2015 BGI llevará a cabo la ... 22 al 25 de octubre de 2015, en ... celebra su décimo aniversario este año. Desde su inauguración ... las reuniones anuales más influyentes del mundo en los ... conferencias científicas más dinámicas, entusiastas y amenas. ...
(Date:7/31/2015)... , 31 de julho de 2015 ... www.icg-10.org ) será realizada pela BGI de 22-25 de ... . A conferência está celebrando seu 10 ... 2006, a ICG se tornou uma das reuniões mais ... dos encontros científicos mais dinâmicos, entusiastas e prazerosos. ...
Breaking Biology News(10 mins):Den 10. internationale konference om Genomics (ICG-10) åbner i oktober 2La 10ª Conferencia Internacional sobre Genómica (ICG-10) comienza en octubre 2La 10ª Conferencia Internacional sobre Genómica (ICG-10) comienza en octubre 3A 10a. Conferência Internacional sobre Genômica (ICG-10) será em outubro 2A 10a. Conferência Internacional sobre Genômica (ICG-10) será em outubro 3
... a new way of looking beneath the ocean surface ... shrinking. , A remote sensor system developed by Associate ... at MIT, Northeastern University and the Naval Research Laboratory, ... as well as small schools, over a 10,000-square-kilometer area ...
... of Pennsylvania, demonstrate that biodegradable nano-particles containing two ... breast tumors. The unique properties of the ... to deliver two distinct drugs, paclitaxel, the leading ... Taxol, and doxorubicin directly to tumors implanted in ...
... have found a way to keep a protein "watchdog" on ... - if they can keep it on a leash of ... team of scientists including Purdue University's Susan M. Mendrysa has ... has the ability to halt the progression of intestinal tumors ...
Cached Biology News:One fish, two fish: New MIT sensor improves fish counts 2Nano-particles effective in killing cancer with one-two punch of chemotherapeutics 2Loosen leash on cancer protein 'watchdog,' researchers say 2Loosen leash on cancer protein 'watchdog,' researchers say 3Loosen leash on cancer protein 'watchdog,' researchers say 4
(Date:7/30/2015)... Grenoble, France and Dallas, TX, USA (PRWEB) , ... ... ... manufacturer of innovative nano and microsystems, has appointed Francois Vieillard as Sales & ... & Marketing at executive positions, Francois Vieillard will be responsible for reinforcing Tronics’ ...
(Date:7/30/2015)... SAN DIEGO, July 30, 2015   Senomyx , ... proprietary taste science technologies to discover, develop, and commercialize ... supply industries, today reported financial results for the second ... half of 2015, we remain on track to achieve ... and Chief Executive Officer of the Company. "Since our ...
(Date:7/30/2015)... ... 2015 , ... As part of its 2015 growth plan and as a follow up to ... business units, Whitehouse Laboratories is pleased to announce that it has begun construction on a ... Excellence and will be strictly dedicated to basic USP 51, USP 61, and USP 62 ...
(Date:7/29/2015)... US-Australian drug discovery company, Novogen Limited (ASX: ... committed to progressing its ground-breaking technology platforms to Phase ... ensure the Company delivers the best value for shareholders. ... , said the Company currently had an extensive program ... programs and academic partnerships and initiatives, and he was ...
Breaking Biology Technology:Tronics appoints Francois Vieillard as Sales and Marketing Director 2SENOMYX ANNOUNCES SECOND QUARTER 2015 FINANCIAL RESULTS 2SENOMYX ANNOUNCES SECOND QUARTER 2015 FINANCIAL RESULTS 3SENOMYX ANNOUNCES SECOND QUARTER 2015 FINANCIAL RESULTS 4SENOMYX ANNOUNCES SECOND QUARTER 2015 FINANCIAL RESULTS 5SENOMYX ANNOUNCES SECOND QUARTER 2015 FINANCIAL RESULTS 6SENOMYX ANNOUNCES SECOND QUARTER 2015 FINANCIAL RESULTS 7SENOMYX ANNOUNCES SECOND QUARTER 2015 FINANCIAL RESULTS 8SENOMYX ANNOUNCES SECOND QUARTER 2015 FINANCIAL RESULTS 9Whitehouse Labs Formally Announces Plans to Open a Microbiological Laboratory 2Newly Appointed Acting CEO Outlines Immediate Plans for Novogen 2Newly Appointed Acting CEO Outlines Immediate Plans for Novogen 3Newly Appointed Acting CEO Outlines Immediate Plans for Novogen 4Newly Appointed Acting CEO Outlines Immediate Plans for Novogen 5Newly Appointed Acting CEO Outlines Immediate Plans for Novogen 6Newly Appointed Acting CEO Outlines Immediate Plans for Novogen 7Newly Appointed Acting CEO Outlines Immediate Plans for Novogen 8Newly Appointed Acting CEO Outlines Immediate Plans for Novogen 9Newly Appointed Acting CEO Outlines Immediate Plans for Novogen 10
... a privately-held company focused on advancing women,s reproductive health, today ... A financing, bringing the total funding to $20 million. The ... the round include Kleiner Perkins Caufield and Byers, TPG Biotech ... the last year, we have executed an aggressive operating plan ...
... 2012   Reportlinker.com announces that a new market ... U.S. Tissue Engineering Markets ... The scope of this research service primarily ... the wound care and surgery space. Surgery ...
... Feb. 1, 2012 Sangamo BioSciences, Inc. (Nasdaq: ... fourth quarter and full year 2011 financial results on Wednesday, ... will be followed by a conference call at 5:00 p.m. ... and webcast. During the conference call, the company will review ...
Cached Biology Technology:Auxogyn Completes $20 Million In Series A Funding 2Auxogyn Completes $20 Million In Series A Funding 3U.S. Tissue Engineering Markets 2U.S. Tissue Engineering Markets 3Sangamo BioSciences Announces Fourth Quarter and Full Year 2011 Conference Call and Webcast 2
IEX-1 S/L (H-20)...
Mouse monoclonal [1.T.4] to WAVE 1 ( Abpromise for all tested applications). Antigen: His6 fusion protein corresponding to full-length rat WAVE1. Entrez Gene ID: 8936...
For the differentiation of mouse embryonic stem cells tooligodendrocytes....
VAP-1 (S-13)...
Biology Products: