On the Clock Charting a Pathway Eyeing Epigenetics in Cancer It’s … · 2018-08-21 · range...
Transcript of On the Clock Charting a Pathway Eyeing Epigenetics in Cancer It’s … · 2018-08-21 · range...
VOL. 5, ISSUE NO. 4 JULY/AUGUST 2018JULY/AUGUST 2018VOL. 5, ISSUE NO. 4
On the Clock
Charting a Pathway
Eyeing Epigenetics
in Cancer
It’s in the Immune
Markers
Nobel Laureate Aziz Sancar
Delves into Cancer’s Circadian Rhythm
VOL. 5, Issue No. 4 July/August 2018
www.clinicalomics.com July/August 2018 Clinical OMICs 1
@ClinicalOMICs
30| DATA & INFORMATICS
Charting a Pathway: Philips,
Dana-Farber Join Forces for
Cancer Treatment Decision
Support
34 | IN THE LAB
It’s in the Immune Markers: Israeli Company MeMed
Seeks to Provide Fast Bacterial POC Diagnostics
39 | NEW PRODUCTS
40 | FEATURE
Five Innovative Technologies
44 | PRECISION MEDICINE
The House Oncomine Built: Thermo Fisher Opens Precision
Medicine Center to Help Expand Use of its Cancer CDx
48 | INDUSTRY EVENTS
Seeking All CDxesAs Pharma Companies Develop More Immuno-
Oncology Therapies, Diagnostics Employ New
Classes of Biomarkers
20
Eyeing Epigenetic MarkersIdentifying the Methylation Patterns of cfDNA Aids in
Identifying Cancer’s Origins
26
3 | NEWS
New Research Expands Human
Genome by Nearly 5K Genes
10 | FROM THE EDITOR
Finding Inspiration in Innovation
11 | OP-ED
What’s Next for the Single Cell Space?
12 | FEATURE
On the Clock: Can Transcriptomics Help Find the Right
Time to Administer Chemotherapy?
16 | DIAGNOSTICS
Forging a New Course: Cancer Genetics Inc. Refocuses after
Departure of Long-Time CEO
Cover: Max Englund; (top right) Foundation Medicine; (top left) jamesbenet /Getty Images; (middle left) Yagi Studio /
Getty Images; (middle right) Philips.
www.clinicalomics.com July/August 2018 Clinical OMICs 41
Moon, Rare Disease Diagnosis
Diploid, Leuven, Belgium
When Peter Schols, founder and CEO of Belgian variant
interpretation software company Diploid, first began provid-
ing services to labs and hospitals in Europe and the United
States shortly after its founding in 2014, he was struck by
the lack of efficiency and manual processes required to try to
pinpoint the causal variants of rare disease. “We wondered
why can’t software just figure this out by itself? Why do we
sometimes need to manually go through 50, 100, or 200 vari-
ants before solving a case?” Schols asks.
So Schols and his team looked to tackle this problem, via
an in-house development project considered a moonshot at
the time—creating software that scours 4.5 million variants
and picks the one variant, or the small handful of causal
variants, responsible for a patient’s disease. When the proj-
ect was launched, some at Diploid wondered whether it was
even possible to remove the geneticist and manual interpre-
tation from the equation. What was once an internal code
name for a project some thought was not possible, has now
become the product Moon, software that can take a patient’s
phenotypic data and genomic data and provide a disease
diagnosis in five minutes.
Battle tested by Stephen Kingsmore, M.D., in the NICU
at Rady Children’s Hospital, which holds the world record
for the fastest genetic diagnosis, Moon has been deployed
worldwide at such prestigious institutions as the Antwerp
University Hospital, Belgium, The Swiss Foundation for
People with Rare Diseases, and at the National Institutes
for Health in the U.S. The technology significantly leans on
artificial intelligence to filter and rank genetic variants and
provide autonomous interpretation of a patient’s genome.
Moon continually updates its knowledgebase using natural
language processing technology to “read” an average of 45
new publications each week on human genetics and rare
diseases. Not content to reduce the time to answer to five
minutes, Moon squeezes even more time out of the process
via natural language generation (NLG) technology to auto-
matically write a first draft of the diagnostic report.
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biomaterial that allows human cells to live and grow in the
same way they would inside the human body. The company
says it was the first to have a universal 3D printable bioink.
Boasting nearly 20 tissue-specific bioinks available—with
more on the drawing board—the future is now, says com-
pany CEO Gatenholm. “This has always been my vision and
dream—to be part of something that creates the future,” he
says. “At CELLINK, that is exactly what we do. We create
the future of medicine.”
The company’s workhorse is its versatile 3D printer
BIOX, featuring a patented “clean printing technology”—a
small positive pressure chamber on board the printer that
creates a clean printing environment for the biomaterial and
thus eliminates the need for a cleanroom environment. The
system features three interchangeable print heads that can
either heat or cool the bioink for optimal printing, depend-
ing on the ink’s viscosity, and features both pneumatic and
inkjet extrusion. The printbed, too, is carefully temperature
controlled, which allows the bioinks to be cooled immedi-
ately upon printing to maintain their 3D form.
While CELLINK has shot out of the pack in the 3D bio-
printing world, and its technology is groundbreaking, it is
still early days, especially if you consider the Holy Grail
of 3D bioprinting—the creation of entire human organs—
which is many years away. Today, CELLINK’s customers
range from biomedical research institutions and pharma-
ceutical companies to cosmetic companies. With such a
printing technology at their fingertips, scientists already
have developed methods for printing 3D models of cancer-
ous tumors—for research to better understand the tumor
microenvironment—and organ tissues, among others, all
intended to speed development of new drugs.
42 Clinical OMICs July/August 2018 www.clinicalomics.com
Flongle, a Flow Cell Dongle for MinION
and GridION
Oxford Nanopore Technologies, Oxford, England
As long-read nanopore sequencing continues to improve
its accuracy and read lengths, and adoption of the method
spreads, companies have now added the creation of tech-
nology platforms for specific applications to their ongo-
ing efforts to refine the technology. Nowhere is this more
apparent than at what is perhaps the preeminent company
in the field, Oxford Nanonpore. The company, known
for its MinION portable, credit card-sized (or smaller)
sequencing device, has busily added platforms to serve
different market niches. For instance, one of its newer
entries, PromethION, is a benchtop system geared toward
those conducting large-scale sequencing projects. While it
runs the same workflow as MinION, the new system can
run 48 flow cells—each with 3,000 nanopore channels—
either concurrently or independently.
DeepVariant, Visual Genetic
Variant Calling
Google AI, Mountain View, CA
It’s no secret that error rates in variant calling are a
long-standing issue in the sequencing world. While the error
rates are small in percentage, when you consider the 3 bil-
lion base pairs comprising the human genome, they can add
up quickly. To the folks working at Google AI, they posited
there might be a new approach they could take to poten-
tially improve variant calling by moving it from statistical
and mathematical approaches to a visual approach, enabled
by existing artificial intelligence and machine learning tools.
“As we started thinking of how deep learning technolo-
gies like TensorFlow could be used for genomics problems,
it made sense to try to reframe variant calling as computer
vision problems to leverage these tools,” says Pi-Chuan
Chang, a software engineer at Google AI. “Intuitively, given
that well-trained bioinformaticians can examine their data
with visualization tools like Integrative Genomics Viewer
when troubleshooting, it seemed possible that a visual
approach would work.”
Thus was born DeepVariant, an open-source visual vari-
ant calling tool that was released to Google Cloud at the
end of last year. The team that created DeepVariant were
no genomics neophytes, counting among its leaders Mark
DePristo and Ryan Poplin, both of whom helped create the
variant discovery tool GATK while both were at The Broad
Institute. In a nutshell, in order to employ visual analysis
to sequencing data, the Google AI team assigned different
colors to three classes of data: each of the four base pairs, the
quality of the sequencing at a given location, and on which
strand the base pair was located. Using the color-coded
sequencing images, DeepVariant was trained using the
GIAB reference genome, using tens of millions of replicates.
While Google says the calling of DeepVariant is more
accurate than existing, widely used statistical methods, it
still has one more hurdle to clear if it is to become the go-to
method among the scientific community: speed. The visual
interpretation takes significantly more computing power
than existing methods and takes about twice as long for
results. Nevertheless, as computing power improves, adop-
tion of the tool should continue to surge.
“We’re aware of several organizations that are incorporat-
ing DeepVariant into their clinical sequencing workflows,”
adds Chang. “We’re particularly excited about clinical users,
because that’s where accuracy is really critical.”
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