Results 121 to 130 of about 3,771,869 (289)

Cell and Gene Therapies Manufacturing Challenges and Integrated Good Manufacturing Practices Solutions: A Lifecycle Perspective

Biotechnology and Bioengineering, EarlyView.
Lifecycle perspective on cell and gene therapy manufacturing challenges and enabling GMP solutions. ABSTRACT Cell and gene therapies (CGTs) are revolutionizing modern medicine; however, making these advanced medicines scalable and readily available to commercial manufacturers worldwide is a major challenge. The number of approved CGT products continues
Rajath Samaga, Udisha Singh, Sachin Dattram Pawar   +2 more
wiley   +1 more source

Cryo‐EM Analysis of Adenovirus Vector Reveals Purification Conditions Leading to Loss of Viral Fiber Proteins and Reduced Infectivity

Biotechnology and Bioengineering, EarlyView.
ABSTRACT Vaccines and gene therapies require efficient delivery of genetic material to host cells. Viral vectors leverage viruses' ability to enter host cells to achieve this. Following the SARS‐CoV‐2 vaccine and novel gene therapies that utilize adenovirus vectors, there has been an increase in the demand for large‐scale production of vectors.
Betsy Widdicombe, Joseph D. Barritt, Nichakorn Pipatpadungsin, Braulio Carrillo Sanchez, Dale Stibbs, Lisa Cooper, Sarah L. Rouse, Daniel G. Bracewell   +7 more
wiley   +1 more source

Limited cross-reactivity of mouse monoclonal antibodies against Dengue virus capsid protein among four serotypes

Biologics: Targets & Therapy, 2012
Megumi Noda,1 Promsin Masrinoul,1 Chaweewan Punkum,1 Chonlatip Pipattanaboon,2,3 Pongrama Ramasoota,2,4 Chayanee Setthapramote,2,3 Tadahiro Sasaki,6 Mikiko Sasayama,1 Akifumi Yamashita,1,5 Takeshi Kurosu,6 Kazuyoshi Ikuta,6 Tamaki Okabayashi11Mahidol ...
Noda M, Masrinoul P, Punkum C, Pipattanaboon C, Ramasoota P, Setthapramote C, Sasaki T, Sasayama M, Yamashita A, Kurosu T, Ikuta K, Okabayashi T   +11 more
doaj  

Nuclease‐Free Scalable Purification of Physalis Mottle Virus‐Like Particles Expressed in Escherichia coli

Biotechnology and Bioengineering, EarlyView.
ABSTRACT Plant virus‐like particles (VLPs) are promising nanotechnology platforms, but their translation requires purification strategies suitable for large‐scale production. Here, we developed a nuclease‐free downstream process for Physalis mottle virus (PhMV) VLPs expressed in Escherichia coli, combining ammonium sulfate precipitation, low‐pH ...
Sean K. Hsu, Patrick Opdensteinen, Tariq Hussain, Nicole F. Steinmetz   +3 more
wiley   +1 more source

Protein chainmail: catenated protein in viral capsids.

Cell, 1998
The capsid shells of bacteriophage HK97 and several other phages contain polypeptides that are covalently linked into complexes so large that they do not enter polyacrylamide gels after denaturation. The enormous apparent size of these protein complexes in HK97 derives from a novel protein topology.
openaire   +2 more sources

Feasibility Assessment of a Single‐pH Connected Polishing Train for Monoclonal Antibody Purification Using Mildly Acidic Protein A Elution and an Acidic‐Window Anion Exchange Membrane

Biotechnology and Bioengineering, EarlyView.
ABSTRACT Monoclonal antibody downstream processing often requires multiple pH adjustments between Protein A capture and polishing steps. These adjustments increase process complexity and make direct unit‐operation connection more difficult. We evaluated a connected post‐capture polishing block operated at approximately pH 5.0 using mild‐pH Protein A ...
Takaki Aiso, Hiroshi Muto, Kyota Suzuki, Yumiko Masuda, Hirofumi Kakihara, Masashi Sonoyama   +5 more
wiley   +1 more source

Serotype‐Tailored Midstream and Downstream Operations to Advance the Manufacturing of Adeno‐Associated Viral Vectors

Biotechnology and Bioengineering, EarlyView.
ABSTRACT Adeno‐associated viruses (AAVs) are the leading vectors for in vivo gene therapy, fueling a growing demand for scalable and robust biomanufacturing processes. Yet, the impact of cell lysis conditions on the performance of midstream and downstream unit operations across serotypes remains poorly characterized.
Arianna Minzoni, Shriarjun Shastry, Eduardo Barbieri, Morgan R. Hurst, Kelvin Idanwekhai, Yuxuan Wu, Katherine Ernst, Wai‐Keen Chung, Christopher Bombeck, Saad A. Khan, Sushmita Koley, Gabriella Kiss, Oliver Rammo, Alexander Tropsha, Cristiana Boi, Michael A. Daniele, Steven Cramer, Barry Byrne, Stephen Kaminsky, Angie Snell Bennett, Stefano Menegatti   +20 more
wiley   +1 more source

RNA‐centric world of retroviruses: unravelling the molecular strategies of genomic RNA packaging

Biological Reviews, EarlyView.
ABSTRACT Retroviruses constitute a unique group of RNA viruses that have profoundly influenced both evolutionary trajectories and biomedical research. Their ability to reverse transcribe and integrate into host genomes has shaped genomic architecture across species and contributed to our understanding of oncogenes, gene regulation, and RNA biology ...
Mohammad Abdullah Jehad, Suresha G. Prabhu, Lizna M. Ali, Vineeta N. Pillai, Farah Mustafa, Tahir A. Rizvi   +5 more
wiley   +1 more source

Demonstration of nanofiltration‐based virus safety for AAV manufacturing using model viruses

Biotechnology Progress, EarlyView.
Abstract Virus safety for biopharmaceutical products has been a well‐established concern for several decades. While various virus reduction steps have been identified and implemented for traditional plasma‐derived and monoclonal antibody products, there are various challenges to achieving the same virus safety in emerging gene therapy products.
Brian Buesing, Tomoki Igi, Daniel Strauss   +2 more
wiley   +1 more source

High‐throughput development and scale‐up of recombinant adeno‐associated virus 5 anion‐exchange chromatography for high‐purity capsid separation

Biotechnology Progress, EarlyView.
High‐throughput anion‐exchange chromatography process development enables scalable purification of high‐purity recombinant adeno‐associated virus capsids. Abstract Recombinant adeno‐associated virus (rAAV) production commonly yields a high proportion of empty and partially filled capsids, necessitating downstream purification to enrich full capsids ...
Kevin Vera, Ivan Gajic, Praveen Kusumanchi, Angela Andaluz, Gabrielle Dela Pena, Clifford A. Froelich, Elizabeth Higgins, Jennifer Johnston, Seyed Pouria Motevalian   +8 more
wiley   +1 more source