1
|
Stanevich V, Pachalla A, Nunez B, McInnes M, Nieder C, Schreffler J. Improving viral filtration capacity in biomanufacturing processes using aggregate binding properties of polyamide-6,6. Biotechnol Bioeng 2020; 118:1105-1115. [PMID: 33241852 DOI: 10.1002/bit.27634] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Revised: 11/06/2020] [Accepted: 11/13/2020] [Indexed: 11/10/2022]
Abstract
Virus retention filtration is a common step in modern biopharmaceutical manufacturing as it enables efficient removal of potential adventitious and endogenous viruses via size exclusion. Modern parvovirus retention filters have significantly improved fluxes and parvovirus retention in comparison to earlier versions of these filters. However, these filters may be more susceptible to premature fouling and require more effort for process optimization. Here, we demonstrate that polyamide-6,6 (nylon-6,6) membranes when used as prefilters can increase the capacity of these Parvovirus retentive filters that are less susceptible to premature fouling. We found that the mechanism of polyamide-mediated filtration improvement can be explained by the binding of monoclonal antibody (mAb) aggregates with a diameter of 20-100 nm, and we show that this mechanism is shared by other types of adsorptive prefilters. Finally, by the combination of mobile phase screening, additive spiking, and molecular dynamics simulations, we show that polyamide-6,6 removes mAb aggregates through hydrophobic interactions making its design space potentially complementary to other available prefilters. Our studies support the aggregate-mediated mechanism of flux decay during viral filtration and suggest that polyamide-6,6 could be considered as an alternative cost-effective option to extend the capacity of viral filters.
Collapse
Affiliation(s)
- Vitali Stanevich
- Janssen Pharmaceutical Companies of Johnson and Johnson, Malvern, Pennsylvania, USA
| | - Abhishek Pachalla
- Janssen Pharmaceutical Companies of Johnson and Johnson, Malvern, Pennsylvania, USA
| | - Briana Nunez
- Janssen Pharmaceutical Companies of Johnson and Johnson, Malvern, Pennsylvania, USA
| | | | | | - John Schreffler
- Janssen Pharmaceutical Companies of Johnson and Johnson, Malvern, Pennsylvania, USA
| |
Collapse
|
2
|
Barbitoff YA, Matveenko AG, Bondarev SA, Maksiutenko EM, Kulikova AV, Zhouravleva GA. Quantitative assessment of chaperone binding to amyloid aggregates identifies specificity of Hsp40 interaction with yeast prion fibrils. FEMS Yeast Res 2020; 20:5831717. [PMID: 32379306 DOI: 10.1093/femsyr/foaa025] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Accepted: 05/05/2020] [Indexed: 12/18/2022] Open
Abstract
Yeast self-perpetuating protein aggregates (yeast prions) provide a framework to investigate the interaction of misfolded proteins with the protein quality control machinery. The major component of this system that facilitates propagation of all known yeast amyloid prions is the Hsp104 chaperone that catalyzes fibril fragmentation. Overproduction of Hsp104 cures some yeast prions via a fragmentation-independent mechanism. Importantly, major cytosolic chaperones of the Hsp40 group, Sis1 and Ydj1, oppositely affect yeast prion propagation, and are capable of stimulating different activities of Hsp104. In this work, we developed a quantitative method to investigate the Hsp40 binding to amyloid aggregates. We demonstrate that Sis1 binds fibrils formed by the Sup35NM protein with higher affinity compared to Ydj1. Moreover, the interaction of Sis1 with the fibrils formed by the other yeast prion protein, Rnq1, is orders of magnitude weaker. We show that the deletion of the dimerization domain of Sis1 (crucial for the curing of [PSI+] by excess Hsp104) decreases its affinity to both Sup35NM and Rnq1 fibrils. Taken together, these results suggest that tight binding of Hsp40 to the amyloid fibrils is likely to enhance aggregate malpartition instead of fibril fragmentation.
Collapse
Affiliation(s)
- Yury A Barbitoff
- Department of Genetics and Biotechnology, St. Petersburg State University, Universitetskaya nab. 7/9, St. Petersburg, 199034 Russia
| | - Andrew G Matveenko
- Department of Genetics and Biotechnology, St. Petersburg State University, Universitetskaya nab. 7/9, St. Petersburg, 199034 Russia
| | - Stanislav A Bondarev
- Department of Genetics and Biotechnology, St. Petersburg State University, Universitetskaya nab. 7/9, St. Petersburg, 199034 Russia.,Laboratory of Amyloid Biology, St. Petersburg State University, Universitetskaya nab. 7/9, St. Petersburg, 199034 Russia
| | - Evgeniia M Maksiutenko
- Department of Genetics and Biotechnology, St. Petersburg State University, Universitetskaya nab. 7/9, St. Petersburg, 199034 Russia.,St. Petersburg Branch, Vavilov Institute of General Genetics, Russian Academy of Sciences, Universitetskaya nab. 7/9, St. Petersburg, 199034 Russia
| | - Alexandra V Kulikova
- Peter the Great St. Petersburg Polytechnic University, Politekhnicheskaya ul. 29, St. Petersburg, 195251 Russia
| | - Galina A Zhouravleva
- Department of Genetics and Biotechnology, St. Petersburg State University, Universitetskaya nab. 7/9, St. Petersburg, 199034 Russia.,Laboratory of Amyloid Biology, St. Petersburg State University, Universitetskaya nab. 7/9, St. Petersburg, 199034 Russia
| |
Collapse
|