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"The infinite flexibility that the instrument is capable of is what brought us to look at it closely."

Andy Watt
Executive Director, Antisense Lead Identification, Ionis Pharmaceuticals
HOME | RESOURCES | Customer Profiles | Ionis Pharmaceuticals

Ionis Pharma Scientists Ramp Up Lead Identification with the Echo® Liquid Handler

Scientists at Ionis Pharmaceuticals have spent more than 27 years developing RNA-targeting medicines called antisense therapeutics, making the company a leader in the discovery and development of this exciting new class of drugs. With two drugs approved and more than three dozen drugs in various stages of development, Ionis aims to tackle unmet needs in a wide range of indications, including neurological and neuromuscular disease, metabolic and cardiovascular diseases, and cancer.

Labcyte and Ionis Echo® 525 LIQUID HANDLER

Naturally, lead identification is a critical part of that equation. Overseen by executive director Andy Watt, the lead identification group screens thousands of compounds designed against hundreds of molecular targets every year. The rise of genomics has been a real boon to the company along the way. “The explosion of genetic knowledge has been directly applicable to our technology because our drugs are developed based on genomic information. In fact, our drug technology is one of the fast ways to get from gene to drug,” he says.

The company’s unique technology platform means that it can go after virtually any indication. “One advantage is that our primary target is RNA, which provides us with the opportunity to pursue multiple targets across broad therapeutic areas,” Watt says. “Because our technology targets RNA, it can address a large number of disease targets that have been unapproachable with conventional drug technologies.”

This work has attracted interest from major pharmaceutical companies, many of whom have partnered with Ionis to get a foothold in the antisense market. That makes lead identification especially important and gives Watt’s team added motivation to make their pipeline as efficient and effective as possible.

In their quest to improve productivity, Watt and his team have deployed automated solutions wherever possible. “Our experience over the years is that automation always wins in a head-to-head against a human,” he says. Implementing conventional liquid handlers increased efficiency for various steps, but certain elements just couldn’t be shifted to these instruments.



“The explosion of genetic knowledge has been directly applicable to our technology because our drugs are developed based on genomic information. In fact, our drug technology is one of the fast ways to get from gene to drug.”

Andy Watt  |  Executive Director, Antisense Lead Identification, Ionis Pharmaceuticals

Since the drugs they test are all antisense oligonucleotides, with each oligonucleotide designed to specifically target a single RNA, the team uses RNA as its primary endpoint for evaluating function. They run RT- qPCR assays to measure the levels of different target RNAs. “In most cases, the compounds are intended to cause a reduction in RNA levels,” Watt says. The setup of these assays often involved complex patterns of transferring reagents or samples from one plate to another. The team was performing the entire process by hand, and he needed a solution to fill the automation gap.



When Labcyte released the Echo 525 Liquid Handler, Watt jumped at the opportunity to try it out. The instrument could easily handle the full range of volumes needed — from just a few nanoliters to several microliters in a single reaction — and Watt knew the company had a strong reputation. “The attractiveness of the instrument was its extreme exibility,” he says. “You can transfer from any well to any well in any combination extremely fast and also with extremely low volumes. And it doesn’t use any consumables.”

“The attractiveness of the instrument was its extreme flexibility. You can transfer from any well to any well in any combination extremely fast and also with extremely low volumes.”

Today, Watt’s team uses the Echo platform to set up and run the qRT- PCR reactions on many different samples in the same plate. “For this application, there really wasn’t another option that made sense,” he says. The instrument has made it possible to shrink volumes, so the team saves money on reagents and gets more mileage out of each sample. “We have limited volumes of samples, so by consuming less of them we can measure many more endpoints from the same sample,” Watt notes. Echo liquid handlers are tipless, so Ionis saves money on consumables and reduces waste as well.

Watt particularly likes the reproducibility aspect of the Echo platform. In addition to reducing the variability characteristic of pipetting performed manually, the instrument also creates an audit trail detailing which sample went to each well. “With humans doing it, you can easily go to the wrong set of locations and transfer samples to the wrong place. The Echo just doesn’t do that,” he adds.

“I’m not aware of anything else that can perform at the 25 nanoliter level and then also transfer 2 microliters with such speed. We can also take assays from a plate and transfer them to whichever samples we want. There’s just nothing else that exists like that.”

With the Echo Liquid Handler producing qRT-PCR reactions, Watt’s team has more time to focus on other tasks — and they can stop worrying about the ergonomic effects of all that pipetting. “It’s not something you can ignore,” he says. “Once you get to a certain level of productivity you have to think about automating things so you’re not wearing out people’s shoulders and arms.”