Optimization of cell-free biosensors for synthetic biology

AMIR PANDI AND OLIVIER BORKOWSKI | September 3, 2019

article image
Cell-free synthetic biology recently became a branch of synthetic biology with dedicated research groups and conferences. Cell-free systems present a great potential for synthetic biology, allowing for quick in vitro transcription-translation from circular or linear DNA. The most common cell-free systems nowadays are lysate-based cell-free systems which are made by combining cell extract plus reaction buffers. These systems were initially used for fundamental discoveries in molecular biology (study of the genetic code and translation process) and later on to produce recombinant protein. In the past few years, cell-free attracted synthetic biologists’ attention as a platform for high-throughput characterization and prototyping of natural and synthetic biological circuitry. As advantages of cell-free systems we can be list: Non-GMO hosts, absence of growth dependent challenges, lower level of noise, less susceptibility to toxicity, simple cloning as genes can be cloned separately or possibility of using linear DNA (PCR product), high adjustability by varying the concentration of DNA parts or buffer elements.

Spotlight

Spero Therapeutics

Spero Therapeutics is a global multi-asset clinical-stage biopharmaceutical company headquartered in Cambridge, Massachusetts dedicated to developing a novel and highly differentiated pipeline of antibacterials focused on unmet needs of patients with drug resistant bacterial infections.

OTHER ARTICLES
MEDICAL

Better Purification and Recovery in Bioprocessing

Article | August 2, 2021

In the downstream portion of any bioprocess, one must pick through the dross before one can seize the gold the biotherapeutic that the bioprocess was always meant to generate. Unfortunately, the dross is both voluminous and various. And the biotherapeutic gold, unlike real gold, is corruptible. That is, it can suffer structural damage and activity loss. When discarding the dross and collecting the gold, bioprocessors must be efficient and gentle. They must, to the extent possible, eliminate contaminants and organic debris while ensuring that biotherapeutics avoid aggregation-inducing stresses and retain their integrity during purification and recovery. Anything less compromises purity and reduces yield. To purify and recover biotherapeutics efficiently and gently, bioprocessors must avail themselves of the most appropriate tools and techniques. Here, we talk with several experts about which tools and techniques can help bioprocessors overcome persistent challenges. Some of these experts also touch on new approaches that can help bioprocessors address emerging challenges.

Read More
DIAGNOSTICS

Making Predictions by Digitizing Bioprocessing

Article | April 20, 2021

With advances in data analytics and machine learning, the move from descriptive and diagnostic analytics to predictive and prescriptive analytics and controls—allowing us to better forecast and understand what will happen and thus optimize process outcomes—is not only feasible but inevitable, according to Bonnie Shum, principal engineer, pharma technical innovation, technology & manufacturing sciences and technology at Genentech. “Well-trained artificial intelligence systems can help drive better decision making and how data is analyzed from drug discovery to process development and to manufacturing processes,” she says. Those advances, though, only really matter when they improve the lives of patients. That’s exactly what Shum expects. “The convergence of digital transformation and operational/processing changes will be critical for the facilities of the future and meeting the needs of our patients,” she continues. “Digital solutions may one day provide fully automated bioprocessing, eliminating manual intervention and enabling us to anticipate potential process deviations to prevent process failures, leading to real-time release and thus faster access for patients.” To turn Bioprocessing 4.0 into a production line for precision healthcare, real-time release and quickly manufacturing personalized medicines will be critical. Adding digitization and advanced analytics wherever possible will drive those improvements. In fact, many of these improvements, especially moving from descriptive to predictive bioprocessing, depend on more digitization.

Read More

Spotlight

Spero Therapeutics

Spero Therapeutics is a global multi-asset clinical-stage biopharmaceutical company headquartered in Cambridge, Massachusetts dedicated to developing a novel and highly differentiated pipeline of antibacterials focused on unmet needs of patients with drug resistant bacterial infections.

Events