04 Biotech Instructors

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Spotlight

Altor Bioscience Corporation

Altor currently is developing products based its three Technology Platforms including:

OTHER ARTICLES

Selexis Cell Line Development Strategies

Article | February 11, 2020

In today’s biotechnology landscape, to be competitive, meet regulations, and achieve market demands, “we must apply Bioprocessing 4.0,” said Igor Fisch, PhD, CEO, Selexis. In fact, in the last decade, “Selexis has evolved from cloning by limiting dilution to automated cell selection to nanofluidic chips and from monoclonality assessment by statistical calculation to proprietary bioinformatic analysis,” he added. Single-use processing systems are an expanding part of the biomanufacturing world; as such, they are a major component of Bioprocessing 4.0. “At Selexis, we use single use throughout our cell line development workflow. Currently, we have incorporated single-use automated bioprocessing systems such as ambr® and the Beacon® optofluidic platform for accelerated cell line development. By using these systems and optimizing our parameters, we were able to achieve high titers in shake flasks. Additionally, the Beacon systems integrate miniaturized cell culture with high-throughput liquid handling automation and cell imaging. This allows us to control, adjust, and monitor programs at the same time,” noted Fisch.

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Defense biotech research looks to eliminate bacteria causing traveler’s diarrhea, reduce jet lag duration

Article | February 11, 2020

World traveler‘s will rejoice at the idea of a seemingly magical device that would guarantee they never suffer from the all-too-familiar stomach issues that come from traveling internationally while reducing jet lag at the same time. But it’s not just privileged globetrotters that would benefit from a device that eliminates the bacteria associated with the so-called Montezuma’s Revenge. In 2016, more than 230,000 children around the world died from some of the same types of bacteria as those that cause traveler’s diarrhea, and the bacteria mainly come from unsafe “drinking water, poor sanitation and malnutrition,” according to Oxford University’s Our World In Data portal. On Monday, DARPA announced it was researching an “implantable or ingestible bioelectronic carrier” that would eliminate the five major bacteria associated with traveler’s diarrhea.

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Learning How FoxA2 Helps Turn Stem Cells into Organs

Article | February 11, 2020

Scientists at the Perelman School of Medicine at the University of Pennsylvania discovered early on in each cell, FoxA2 simultaneously binds to both the chromosomal proteins and the DNA, opening the flood gates for gene activation. The discovery, “Gene network transitions in embryos depend upon interactions between a pioneer transcription factor and core histones,” published in Nature Genetics, helps untangle mysteries of how embryonic stem cells develop into organs, according to the researchers. “Gene network transitions in embryos and other fate-changing contexts involve combinations of transcription factors. A subset of fate-changing transcription factors act as pioneers; they scan and target nucleosomal DNA and initiate cooperative events that can open the local chromatin. However, a gap has remained in understanding how molecular interactions with the nucleosome contribute to the chromatin-opening phenomenon,” write the investigators.

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MEDICAL

Better Purification and Recovery in Bioprocessing

Article | February 11, 2020

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.

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