Minimizing batch‐to‐batch variability of a live virus vaccine by process analytical technologies
Abstract For bioprocesses producing live virus, such as enterovirus Coxsackievirus A21, viral titer (infectivity basis) decay rates can exceed 30% within a day. Consequently, harvest timing is paramount. To optimize titer at harvest, a continuous viral product titer model was generated to elucidate kinetics.
Katherine Forrester+4 more
wiley +1 more source
Insertion of a Divergent GAF-like Domain Defines a Novel Family of YcgR Homologues That Bind c-di-GMP in Leptospirales. [PDF]
Visnardi AB+16 more
europepmc +1 more source
Using online metabolite data from the first few days of a bioreactor run, the digital shadow can forecast the cell concentration in real‐time with an accuracy of 13% (standard deviation ≈ 6%). These predictions can guide the optimal harvest time of CAR T cells for subsequent re‐infusion into the patient.
Joseph R. Egan+11 more
wiley +1 more source
The c-di-GMP effector FleQ controls alginate production by repressing transcription of <i>algD</i> in <i>Azotobacter vinelandii</i>. [PDF]
Barrios-Rafael VV+7 more
europepmc +1 more source
Abstract Fed‐batch recombinant therapeutic protein (RTP) production processes utilizing Chinese Hamster Ovary (CHO) cells can take a long period of time (>10 days). Within this period, not all critical features may be measured routinely, and in fact, some are only measured once the process is terminated, complicating decision making.
Sebastian‐Juan Reyes+4 more
wiley +1 more source
Polyethylene terephthalate (PET) primary degradation products affect c-di-GMP-, cAMP-signaling, and quorum sensing (QS) in <i>Vibrio gazogenes</i> DSM 21264. [PDF]
Preuss L+9 more
europepmc +1 more source
Abstract Biopharmaceutical manufacturing processes in which the product of interest is extracellularly expressed typically employ a clarification step following cell culture or fermentation. During clarification, crude cell culture fluid or fermentation broth is processed to remove insoluble solids, cells, debris, and other particulates, with the ...
Kyeong‐won Yeop+7 more
wiley +1 more source
Deciphering ligand and metal ion dependent intricate folding landscape of Vc2 c-di-GMP riboswitch aptamer. [PDF]
Shin JY+6 more
europepmc +1 more source
Photocaged dinucleoside tetraphosphates can be incorporated into mRNA by T7 RNA polymerase. Subsequent irradiation with light activates 5′ cap interactions and translation. These 5′ cap analogs are useful tools to probe the functions of naturally occurring dinucleoside tetraphosphates and their role in bacteria and mammalian cells.
Cedrik Kühling+5 more
wiley +1 more source
A novel transcriptional regulator, CdeR, modulates the type III secretion system via c-di-GMP signaling in <i>Dickeya dadantii</i>. [PDF]
Ghasemi A, Yuan X, Yang C-H.
europepmc +1 more source