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Archive for the ‘Precision Cancer Medicine’ Category

Role of Informatics in Precision Medicine: Notes from Boston Healthcare Webinar: Can It Drive the Next Cost Efficiencies in Oncology Care? Volume 2 (Volume Two: Latest in Genomics Methodologies for Therapeutics: Gene Editing, NGS and BioInformatics, Simulations and the Genome Ontology), Part 1: Next Generation Sequencing (NGS)

Role of Informatics in Precision Medicine: Notes from Boston Healthcare Webinar: Can It Drive the Next Cost Efficiencies in Oncology Care?

Reporter: Stephen J. Williams, Ph.D.

 

Boston Healthcare sponsored a Webinar recently entitled ” Role of Informatics in Precision Medicine: Implications for Innovators”.  The webinar focused on the different informatic needs along the Oncology Care value chain from drug discovery through clinicians, C-suite executives and payers. The presentation, by Joseph Ferrara and Mark Girardi, discussed the specific informatics needs and deficiencies experienced by all players in oncology care and how innovators in this space could create value. The final part of the webinar discussed artificial intelligence and the role in cancer informatics.

 

Below is the mp4 video and audio for this webinar.  Notes on each of the slides with a few representative slides are also given below:

Please click below for the mp4 of the webinar:

 

 


  • worldwide oncology related care to increase by 40% in 2020
  • big movement to participatory care: moving decision making to the patient. Need for information
  • cost components focused on clinical action
  • use informatics before clinical stage might add value to cost chain

 

 

 

 

Key unmet needs from perspectives of different players in oncology care where informatics may help in decision making

 

 

 

  1.   Needs of Clinicians

– informatic needs for clinical enrollment

– informatic needs for obtaining drug access/newer therapies

2.  Needs of C-suite/health system executives

– informatic needs to help focus of quality of care

– informatic needs to determine health outcomes/metrics

3.  Needs of Payers

– informatic needs to determine quality metrics and managing costs

– informatics needs to form guidelines

– informatics needs to determine if biomarkers are used consistently and properly

– population level data analytics

 

 

 

 

 

 

 

 

 

 

 

 

What are the kind of value innovations that tech entrepreneurs need to create in this space? Two areas/problems need to be solved.

  • innovations in data depth and breadth
  • need to aggregate information to inform intervention

Different players in value chains have different data needs

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Data Depth: Cumulative Understanding of disease

Data Depth: Cumulative number of oncology transactions

  • technology innovators rely on LEGACY businesses (those that already have technology) and these LEGACY businesses either have data breath or data depth BUT NOT BOTH; (IS THIS WHERE THE GREATEST VALUE CAN BE INNOVATED?)
  • NEED to provide ACTIONABLE as well as PHENOTYPIC/GENOTYPIC DATA
  • data depth more important in clinical setting as it drives solutions and cost effective interventions.  For example Foundation Medicine, who supplies genotypic/phenotypic data for patient samples supplies high data depth
  • technologies are moving to data support
  • evidence will need to be tied to umbrella value propositions
  • Informatic solutions will have to prove outcome benefit

 

 

 

 

 

How will Machine Learning be involved in the healthcare value chain?

  • increased emphasis on real time datasets – CONSTANT UPDATES NEED TO OCCUR. THIS IS NOT HAPPENING BUT VALUED BY MANY PLAYERS IN THIS SPACE
  • Interoperability of DATABASES Important!  Many Players in this space don’t understand the complexities integrating these datasets

Other Articles on this topic of healthcare informatics, value based oncology, and healthcare IT on this OPEN ACCESS JOURNAL include:

Centers for Medicare & Medicaid Services announced that the federal healthcare program will cover the costs of cancer gene tests that have been approved by the Food and Drug Administration

Broad Institute launches Merkin Institute for Transformative Technologies in Healthcare

HealthCare focused AI Startups from the 100 Companies Leading the Way in A.I. Globally

Paradoxical Findings in HealthCare Delivery and Outcomes: Economics in MEDICINE – Original Research by Anupam “Bapu” Jena, the Ruth L. Newhouse Associate Professor of Health Care Policy at HMS

Google & Digital Healthcare Technology

Can Blockchain Technology and Artificial Intelligence Cure What Ails Biomedical Research and Healthcare

The Future of Precision Cancer Medicine, Inaugural Symposium, MIT Center for Precision Cancer Medicine, December 13, 2018, 8AM-6PM, 50 Memorial Drive, Cambridge, MA

Live Conference Coverage @Medcity Converge 2018 Philadelphia: Oncology Value Based Care and Patient Management

2016 BioIT World: Track 5 – April 5 – 7, 2016 Bioinformatics Computational Resources and Tools to Turn Big Data into Smart Data

The Need for an Informatics Solution in Translational Medicine

 

 

 

 

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The Future of Precision Cancer Medicine, Inaugural Symposium, MIT Center for Precision Cancer Medicine, December 13, 2018, 8AM-6PM, 50 Memorial Drive, Cambridge, MA

Reporter: Aviva Lev-Ari, PhD, RN

#CPCM2018 @AVIVA1950 @pharma_BI

 

 

Aviva Lev-Ari, PhD, RN, Editor-in-Chief, will attend and cover this event in REAL TIME for

 http://pharmaceuticalintelligence.com 


Over the past decade, there have been major advancements in the field of precision medicine, leading to exciting new treatments for some cancer patients. Much attention has been focused on genomic profiling of tumors to identify genomic alterations that might guide selection of specific therapies for individual patients. Beyond genomics, however, there is a variety of other precision approaches that can identify and exploit cancer-specific biological mechanisms including proteomics, metabolomics, and computational modeling, resulting in the more effective use of existing cancer medicines. On Thursday, December 13, 2018, the MIT Center for Precision Cancer Medicine will hold its inaugural annual symposium in the Samberg Conference Center at MIT. This full-day event will feature leading researchers and clinicians, who will highlight recent advances in precision cancer medicine and share perspectives on the future. An industry panel will also discuss the barriers to instituting precision medicine into current and future clinical trials.

 


Keynote Address

Charles Sawyers

Charles Sawyers, MD

Chair, Human Oncology and Pathogenesis Program
Memorial Sloan Kettering Cancer Center

Speakers

Andrea Califano

Andrea Califano, PhD

Clyde and Helen Wu Professor of Chemical Systems Biology, Columbia University
Chair, Department of Systems Biology, Columbia University
Director, JP Sulzberger Columbia Genome Center
Associate Director, Herbert Irving Comprehensive Cancer Center

Chris Love

J. Christopher Love, PhD

Professor of Chemical Engineering, MIT
Associate Member, Ragon Institute of MGH, MIT and Harvard
Member, Koch Institute, MIT

Richard Marais

Richard Marais, PhD

Professor of Molecular Oncology
Director, CRUK Manchester Institute
The University of Manchester

Kenna Mills Shaw

Kenna Mills Shaw, PhD

Executive Director
Sheikh Khalifa Bin Zayed al Nahyan Institute for Personalized Cancer Therapy
MD Anderson Cancer Center

Alice Shaw

Alice Shaw, MD, PhD

Professor, Harvard Medical School
Director, Thoracic Cancer Program, Massachusetts General Hospital

Matt Vander Heiden

Matthew Vander Heiden, MD, PhD

Associate Professor of Biology, MIT
Associate Director, Koch Institute
Member, MIT Center for Precision Cancer Medicine

Mike Yaffe

Michael B. Yaffe, MD, PhD

David H. Koch Professor of Science, MIT
Professor of Biology and Biological Engineering, MIT
Director, MIT Center for Precision Cancer Medicine
Director, Koch Institute Clinical Investigator Program

Jean Zhao

Jean Zhao, PhD

Professor of Biological Chemistry and Molecular Pharmacology
Harvard Medical School and Dana-Farber Cancer Institute


Panelists: Barriers to Instituting Precision Medicine in Clinical Trials

Hammerman

Peter Hammerman, MD, PhD

Global Head, Translational Research
Oncology Disease Area
Novartis Institutes for BioMedical Research

Ho

Steffan N. Ho, MD, PhD

Vice President, Head of Translational Oncology
Pfizer Global Product Development

Shiva Malek

Shiva Malek, PhD

Director and Principal Scientist
Department of Discovery Oncology
Genentech Inc

Marks

Kevin Marks, PhD

VP of Biology
Agios Pharmaceuticals

Michael Rothenberg

S. Michael Rothenberg, MD, PhD

Vice-President, Research and Development
Loxo Oncology, Inc.

Angela Koehler

Moderator:

Angela Koehler, PhD

Goldblith Career Development Professor in Applied Biology, MIT
Member, Koch Institute for Integrative Cancer Research
Member, MIT Center for Precision Cancer Medicine

 

Speakers:

Panelists:

  • Peter Hammerman, Novartis Institutes for BioMedical Research
  • Steffan Ho, Pfizer
  • Shiva Malek, Genentech, Inc
  • Kevin Marks, Agios Pharmaceuticals
  • S. Michael Rothenberg, Loxo Oncology, Inc

Moderated by Angela Koehler, MIT’s Koch Institute

Agenda:

8:00 am Registration and continental breakfast

8:45 am Opening remarks by Michael Yaffe (MIT’s Koch Institute)

  • Season of great expectation, tumor genetics is just the beginning, beyond: science, engineering, medicine: beyond genomics: immunology, cell biology, early detection, new drug development for the undrugable, system biology, RNAi
  • Jack Tyler was the initiator to find a donor for CPCM

9:00 am Keynote Address by Charles L. Sawyers (Memorial Sloan Kettering Cancer Center)

  • developed a drug for prostate cancer
  • Clinical trained oncologist/genomics
  • Lineage Plasticity:
  1. luminal cells in histology of origin and basal cells and require androgen receptor AR) function
  2. deprive lunimal cells fro growth factor
  3. Hormonal therapy Leuprolite, degarelix [castration methastatic]
  4. after relapse 2nd generation anti-androgens abirateron
  5. PING MU ENZALUTAMIDE RESISTANCE P53/RB! DELETION CONFER
  6. TRANSCRIPTION CHANGE: ANTIADROGEN RESISTANCE
  7. Lineage shift Sox2 level goes up – prevent drug resistance, in vivo and in vitro
  8. SOX2 promotes lineage placticity and antiadrogen resistance in TP53 and RBI-deficient prostate cancer
  9. Evolution of Lineage plasticity over time
  10. AR Pathway inhibition accelerates lineage plasticity: synaptophysin-positive disease in-vivo
  11. scRNA-seq time course – modeled by diffusion map displayed in luminal and basal cells
  12. Emergence of EMT phenotype, with retention of epithelial features
  13. Use CRISPR to perturb luminal plasticity by phyeno type
  14. Genomic landscape of Primary Prostate Cancer: ERG gain drives luminal layer
  15. Different classes of FOXA1 mutations in Prostate organoid Cancer – Missense, inframe, truncated
  16. FOXA1 key in hormone receptor signaling
  17. Hypermorphic peaks – ATAC-seq neomorphic FOXA1 pioneering activity
  18. Common Prostate Cancer Genes:differentiation phenotypes: TP53 Loss, RB1 – Loss,
  19. work of Matan Hofree – four subtypes of luminal cells
  20. involution and regeneration of single cell RNAseq
  21. Transcriptional shifts in response to castration/androgen addback
  22. androgen addback: 50% of luminal cells are proliferation in 48 hours
  23. cell responsible for organ regeneration

 

9:45 am Alice T. Shaw (Massachusetts General Hospital)

  • evolution of drug resistance in Lung Cancer
  • oncogenic drivers in lung adenocarcenoma –
  1. EGFR – sensitizing 19.4% of all patients
  2. KRAS
  3. ALK
  4. ROS1
  5. CMET
  6. BRAF
  7. NTRK1
  8. RET

Delay and prevention of drug resistance: liquid biopsy of pleural fluids and serial blood collections

  • Crizotinib patient with ROS1 + nsclc
  • acquired mutation in ROS1 G2032R – resistance to Crizotinib – Michael Lawrence, MGH – analysis of mutation and resistance
  • Repotrectinib – for ROS1 – Resistance mediated by this mutation
  • If patient fails three antiinhibitor drugs: secondary ALK mutations mediate Crizotinib Resistance
  • 2nd generation of  ALK inhibitors are structurally Distinct molecules
  • Lorlatinib – 3rd generation –>> back to 1st generation Crizotinib
  • Clonal evolution of resistance in ALK in NSCLC
  • compound mutations in ALK mutations – Lorlatinib Resistance
  • Sequential TKI therapy foster the development of compound mutation refractory to all generations og ALK TKIs – compound mutation can’t be overcome
  • Intratumoral Heterogeneity revealed by multiregion sequencing of renal cell carcinoma and resected NSCLC
  • somatic mutations: Pre-treatment to Lorlatinib resistance
  • Clonal Analysis: Multiple Drivers of resistance underlie clinical relapse
  • genomic instability – eradicate residual disease to eliminate drug resistance and tolerance persistance

 

10:25 am Networking Break

10:45 am Richard Marais (Cancer Research UK, Manchester Institute)

  • Melanoma – Precision Medicin
  • Request – NOT TO PUBLISH on the INTERNET, some of the work presented is not PUBLISHED.
  • Request is honored

11:25 am Matthew Vander Heiden (MIT’s Koch Institute)

  • Targeting Metabolism is altered in cancer
  • Metabolism is glucose carbohydrates, lipids – conversion of nutrients into biomass: ATP, Protein, Nucleic acid,
  • Not -proliferating cells vs proliferating cells
  • genetic mutations, tissue of origin, lineage of cells — metabolism takes place: combination of these three facto
  • environment consists the metabolic network definers.d by cell intrinsic network
  • Assessment of nutrient levels in tumor microenvironment
  • Metabolite analysis: ion suppression vs nutrients
  • nutrients are available to cells in tumors
  • depletion of glucose vs enrichment
  • metabolite most different: Gluthamine, needed for cancer to grow
  • Lineage can contribute – tryptophane and argenine
  • gluthamine – Cyctine affect gluthamine sensitivity to gluthamine inhibitors
  • what you eat, where is the tumor locate, tissue environment — more important
  • therapeutic window: metabolism processes – cell proliferation
  • ability to make aspartate – given to mice pancreatic  — tumor grow faster
  • cellular oxidation state correlate with pyruvate oxidation — PDH Activator suppress oxidation
  • Aspartate vs NAD+/NADH – lactate TCA – form more carbon
  • PDH activation reduces Redux
  • Serine availability can limit proliferation even in cells with increase
  • Serine vs NAD regeneration
  • which cancer falls into which group : Serine pathway – increase serine synthesis: Melanoma vs Breast cancer
  • growth of breast cancer: Serine availability dependent – accelerate of inhibit growth by level of serine
  • Model for how nutrient limitation affect tumor growth, tumor size depends of serine levels

 

12:05 pm Box lunch

12:30 pm Industry panel: Barriers to instituting precision medicine into clinical trials

  • Long term benefits of Precision Medicine
  • What phynotype are now looked for?

Michael Rothenberg

  1. short term, identify mutations
  2. more testing is needed
  3. sequencing the therapies
  4. challenge getting tissue, doing experiments in house
  5. Industry needs Academia collaboration for accelerated innovations
  6. AI may lower the cost of drug discovery

KEVIN MARX:

  1. MECHANISM OF RESISTANCE – COMBINATORIAL DRUG DISCOVERY
  2. phynotyping, tissue acquisition immune phenotype, what drive therapeutic response?
  3. genetic drivers
  4. HR seeks Scientistist that worked in TEAMS, collaborative science

STEPHAN HO

  1. long term benefits are very important
  2. Stage III disease – technology advances
  3. advanced in the regulatory space
  4. smaller cohort size to approve a drug
  5. biologic complexity, driver oncogenes, precision to imprecision
  6. cost of risk in investment in innovations
  7. check point inhibitor – known biology and immuno-modulation, data hypothesis and moving forward
  8. Organizational culture, interaction in teams, functional behavior
  9. commit to deliverable, perfect timing contingent on work of others.

Peter Hammerman

  1. single cell tumor immunity in combination drug therapy
  2. Tumor monitoring over time
  3. Novartis is interested to collaborate with innovators in Academia and in other institutions
  4. critical thinking on DATA and on negative data
  5. Combination drug therapy: orthogonal mechanism of actions and drug classed – toxicity is an issue

Shiva Malek

  1. How to drug mutations on DATA
  2. Acquired and intrinsic mutations
  3. exposure and patient safety
  4. UCSF’s Ashkenazi’s Team and Genetech – basic biology area selection
  5. Failure are not talked about
  6. Round table for problem solvers, how you approach a problem
  7. translational work require skills beyond technical expertise
  8. learning the navigation inside an organization
  9. leadership in R&D, expected to demonstrate leadership, the Scientist needs to have command of the field and of desirable directions of research

 

2:00 pm J. Christopher Love (MIT’s Koch Institute)

Acceleration of the PROCESS to develop Precision Medicine products

  • design, build, test – PROCESS
  • New drugs and vaccines – the process is iterative
  • measurements, with use of smallest number of samples
  • deliver precision medical: small f patients or large population or
  • clinical samples provide rich source of information: Blood or tissue sample
  • Tissue – extract RNA, component cells, single-cell RNA sequencing,
  • Challenges of enabling scRNA-seq in clinical labs
  • Probability, scale, capture efficiencies, temporal uniformity
  • single-cell sequencing
  • Seq-Well: method for scRNA-Seq
  • New Chemistries for T-cell
  • Blood: cell, cfDNA, Exosomes
  • map cancer genome from blood
  • Tissue:
  • Single circulating Tumor cells:
  • yield genomic landscape of cancer
  • cell free DNA, vells, proteins, metabolite, Tumor is existence, draw blood
  • cfDNA Tumor Fraction is prognostic of survival in mTNBC
  • automate to 13 cancer types
  • Rs is now possible
  • reduce sample requirement
  • cost is low digital information from clinical samples
  • Keytruda – is a molecular Signature
  • low volume product, advanced preparation (mo-years) __>>> agile solutions (days to years)
  • bentchtop, on-demand manufacturing system: Production, Purification, Formulation
  • hand-free production of formulated G-CSF: comparable to licensed products.
  • Plug and play manufacturing using  InSeq
  • Novel MAbs from patients
  • Many molecules to many products

 

2:40 pm Andrea Califano (Columbia University, System Biology)

Mechanistic Framework for the systematic pharmacological targeting of Non-Oncogene Dependencies – Precise Precision Oncology

  • systematic elucidation od critical cancer cell dependencies
  • drug MOA
  • Tumor dependencies to Drug MOA
  • Tumor heterogeneity
  • ARACNe – regulatory targets of regulatory proteins
  • Combinational Therapy: HER@ inhibitor and JAK1/JAK2 inhibitor
  • Driver Mutations
  • ARACNe; MINDy DIGGIT; Expression VIPER: MetaVIPER
  • Aberrantly activated protein for Prioritizing treatment in patients
  • Checkpoint activity reversal – prioritize drugs based on
  • Tumor model selection: GIST
  • 260 patients, 14 untreatable cancers — N of 1 Study
  • Single cell Studies – active proteins in stem-like progenitor cells
  • Ivermectin Treatment vs Control (7d vs 14d)

 

3:20 pm Networking Break

3:40 pm Jean Zhao (Dana Farber Cancer Institute)

Immunotherapy and Targeted Therapy in Cancer Therapy

  • Targeting cancer with CDK4/6 inhibitors
  • CDK4/6 inhibitors causes tumor regression in breast cancer and regression of CT-26 colorectal cancer
  • CDK4/6DNMT1 inducing viral mimicry
  • PARP inhibitors  changing treatment in ovarian cancer
  • FDA approved three drugs for ovarian cancer
  • p53-null; BRCA-null; myc high – model testing

 

4:20 pm Kenna Mills Shaw (MD Anderson Cancer Center)

  • PM nor a Silver bullet nor a Dream Illusion
  • 2013: not all mutations are equally actionable
  • Context of Biomarkers
  • co-mutations in lung cancer identity – therapeutic vulnerability
  • NGS cost decrease leads to increases in Data generation
  • there are only 125 genes ACTIONABLE IN THE CLINIC
  • finding biomarkers beyond direct targets
  • clinical actionability:80K mutation – 32%
  • patients: No standard treatment available
  • Enrollment inGenotype Matched TRIALS
  • MUTATIONS SCREENED: LACK OF ENROLLMENT NOT DUE TO LACK OF MATCHING PROCESS
  • 69% GOT NEW REGIMEN, 17% did not come back — no one called them
  • 58% enrolled on genotrype-matched trials
  • Beyond NGS:

www.personalizedcancertherapy.org

  • DECISION SUPPORT IN REAL TIME IMPROVES “MATCHING” TO RIGHT DRUG.
  • MULTIFACTORS: CO-MOEBIDITIES, MICROBIOME, IMMUNE PHYNOTYPING, GENOMICS, MICROBIOME, ZIP CODE, INFECTION

5:00 pm Michael Yaffe (MIT)

  • AUGMENTED SYNTHETIC LETHALITY
  • CANCER CELLS ARE UNDER CONSTANT STRESS
  • inflammation
  • Therpeutics-targeted Synthetic Lethality
  • BRCA mutation seen in 10%-20% of patients
  • p53 mutations DNA demage – leads to apoptosis p38 MK2 as a pathway is taking over repair DNA and no apotosis occurs.
  • doxorubicin
  • Nanoparticle targeting of siRNAs to established tumors
  • The Concept of augmented Synthetic Lethality   —- enhance a prevosly known synthetic interaction by targeting additional pathways
  • combination of repair pathway  and checkpoint activation – lead to better therapeutic results
  • MK2 – targets hnRNP A0 (an RNA binding protein)  – Cleaved Caspase 3 – is synthetic lethal with p53 mutuant tumors, not just p53 null alleles
  • MK2 links Inflammation and Cancer – IBD –>> polyps and Colon Cancer
  • myeloid cell recruitment to inflammatory tumors in
  • MK2 KO mice: IL-4 –M2 magrophage – tumor progression; regulate the tumor microenvironment
  • IFNgamma –>M1 macrophages – tumor suppression

 

 

 

SOURCE

https://ki.mit.edu/news/events/cpcmsymposium-2018

https://www.eventbrite.com/e/mit-center-for-precision-cancer-medicine-inaugural-symposium-tickets-50424019600?utm_campaign=event_reminder&utm_medium=email&utm_source=eb_email&utm_term=eventname

https://www.eventbrite.com/e/mit-center-for-precision-cancer-medicine-inaugural-symposium-tickets-50424019600

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Geneticist George Church: A Future Without Limits

Reporter: Aviva Lev-Ari, PhD, RN

Article ID #155: Geneticist George Church: A Future Without Limits. Published on 10/24/2014

WordCloud Image Produced by Adam Tubman

UPDATED 12/05/2020

 

In the future, George Church believes, almost everything will be better because of genetics. If you have a medical problem, your doctor will be able to customize a treatment based on your specific DNA pattern. When you fill up your car, you won’t be draining the world’s dwindling supply of crude oil, because the fuel will come from microbes that have been genetically altered to produce biofuel. When you visit the zoo, you’ll be able to take your children to the woolly mammoth or passenger pigeon exhibits, because these animals will no longer be extinct. You’ll be able to do these things, that is, if the future turns out the way Church envisions it—and he’s doing everything he can to see that it does.

UPDATED 12/05/2020

George Church backs a startup solution to the massive gene therapy manufacturing bottleneck

Source: https://endpts.com/george-church-backs-a-startup-solution-to-the-massive-gene-therapy-manufacturing-bottleneck/
Jason Mast: Associate Editor
George Church and his graduate students have spent the last decade seeding startups on the razor’s edge between biology and science fiction: gene therapy to prevent aging, CRISPRed pigs that can be used to harvest organs for transplant, and home kits to test your poop for healthy or unhealthy bacteria. (OK, maybe they’re not all on that razor’s edge.)

But now a new spinout from the Department of Genetics’ second floor is tackling a far humbler problem — one that major company after major company has stumbled over as they tried to get cures for rare diseases and other gene therapies into the clinic and past regulators: How the hell do you build these?

CEO Lex Vovner of 64x Bio

“There’s a lot happening for new therapies but not enough attention around this problem,” Lex Rovner, who was a post-doc at Church’s lab from 2015 to 2018, told Endpoints News. “And if we don’t figure out how to fix this, many of these therapies won’t even reach patients.”

This week, with Church and a couple other prominent scientists as co-founders, Rovner launched 64x Bio to tackle one key part of the manufacturing bottleneck. They won’t be looking to retrofit plants or build gene therapy factories, as Big Pharma and big biotech are now spending billions to do. Instead, with $4.5 million in seed cash, they will try to engineer the individual cells that churn out a critical component of the therapies.

George Church
The goal is to build cells that are fine-tuned to do nothing but spit out the viral vectors that researchers and drug developers use to shuttle gene therapies into the body. Different vectors have different demands; 64x Bio will look to make efficient cellular factories for each.

“While a few general ways to increase vector production may exist, each unique vector serotype and payload poses a specific challenge,” Church said in an emailed statement. “Our platform enables us to fine tune custom solutions for these distinct combinations that are particularly hard to overcome.”

Before joining Church’s lab, Rovner did her graduate work at Yale, where she studied how to engineer bacteria to produce new kinds of protein for drugs or other purposes. And after leaving Church’s lab in 2018, she initially set out to build a manufacturing startup with a broad focus.

Yet as she spoke with hundreds of biotech executives on LinkedIn and in coffee shops around Cambridge, the same issue kept popping up: They liked their gene therapy technology in the lab but they didn’t know how to scale it up.

“Everyone kept saying the same thing,” Rovner said. “We basically realized there’s this huge problem.”

The issue would soon make headlines in industry publications: bluebird delaying the launch of Zynteglo, Novartis delaying the launch of Zolgensma in the EU, Axovant delaying the start of their Parkinson’s trial.

Part of the problem, Rovner said, is that gene therapies are delivered on viral vectors. You can build these vectors in mammalian cell lines by feeding them a small circular strand of DNA called a plasmid. The problem is that mammalian cells have, over billions of years, evolved tools and defenses precisely to avoid making viruses. (Lest the mammal they live in die of infection).

There are genetic mutations that can turn off some of the internal defenses and unleash a cell’s ability to produce virus, but they’re rare and hard to find. Other platforms, Rovner said, try to find these mutations by using CRISPR to knock out genes in different cells and then screening each of them individually, a process that can require hundreds of thousands of different 100-well plates, with each well containing a different group of mutant cells.

“It’s just not practical, and so these platforms never find the cells,” Rovner said.

64x Bio will try to find them by building a library of millions of mutant mammalian cells and then using a molecular “barcoding” technique to screen those cells in a single pool. The technique, Rovner said, lets them trace how much vector any given cell produces, allowing researchers to quickly identify super-producing cells and their mutations.

The technology was developed partially in-house but draws from IP at Harvard and the Wyss Institute. Harvard’s Pam Silver and Wyss’s Jeffrey Way are co-founders.

The company is now based in SoMa in San Francisco. With the seed cash from Fifty Years, Refactor and First Round Capital, Rovner is recruiting and looking to raise a Series A soon. They’re in talks with pharma and biotech partners, while they try to validate the first preclinical and clinical applications.

Gene therapy is one focus, but Rovner said the platform works for anything that involves viral vector, including vaccines and oncolytic viruses. You just have to find the right mutation.

“It’s the rare cell you’re looking for,” she said.

AUTHOR
Jason Mast
Associate Editor
jason@endpointsnews.com
@JasonMMast
Jason Mas

In 2005 he launched the Personal Genome Project, with the goal of sequencing and sharing the DNA of 100,000 volunteers. With an open-source database of that size, he believes, researchers everywhere will be able to meaningfully pursue the critical task of correlating genetic patterns with physical traits, illnesses, and exposure to environmental factors to find new cures for diseases and to gain basic insights into what makes each of us the way we are. Church, tagged as subject hu43860C, was first in line for testing. Since then, more than 13,000 people in the U.S., Canada, and the U.K. have volunteered to join him, helping to establish what he playfully calls the Facebook of DNA.

Church has made a career of defying the impossible. Propelled by the dizzying speed of technological advancement since then, the Personal Genome Project is just one of Church’s many attempts to overcome obstacles standing between him and the future.

“It’s not for everyone,” he says. “But I see a trend here. Openness has changed since many of us were young. People didn’t use to talk about sexuality or cancer in polite society. This is the Facebook generation.” If individuals were told which diseases or medical conditions they were genetically predisposed to, they could adjust their behavior accordingly, he reasoned. Although universal testing still isn’t practical today, the cost of sequencing an individual genome has dropped dramatically in recent years, from about $7 million in 2007 to as little as $1,000 today.

“It’s all too easy to dismiss the future,” he says. “People confuse what’s impossible today with what’s impossible tomorrow.”, especially through the emerging discipline of “synthetic” biology. The basic idea behind synthetic biology, he explained, was that natural organisms could be reprogrammed to do things they wouldn’t normally do, things that might be useful to people. In pursuit of this, researchers had learned not only how to read the genetic code of organisms but also how to write new code and insert it into organisms. Besides making plastic, microbes altered in this way had produced carpet fibers, treated wastewater, generated electricity, manufactured jet fuel, created hemoglobin, and fabricated new drugs. But this was only the tip of the iceberg, Church wrote. The same technique could also be used on people.

“Every cell in our body, whether it’s a bacterial cell or a human cell, has a genome,” he says. “You can extract that genome—it’s kind of like a linear tape—and you can read it by a variety of methods. Similarly, like a string of letters that you can read, you can also change it. You can write, you can edit it, and then you can put it back in the cell.”

This April, the Broad Institute, where Church holds a faculty appointment, was awarded a patent for a new method of genome editing called CRISPR (clustered regularly interspersed short palindromic repeats), which Church says is one of the most effective tools ever developed for synthetic biology. By studying the way that certain bacteria defend themselves against viruses, researchers figured out how to precisely cut DNA at any location on the genome and insert new material there to alter its function. Last month, researchers at MIT announced they had used CRISPR to cure mice of a rare liver disease that also afflicts humans. At the same time, researchers at Virginia Tech said they were experimenting on plants with CRISPR to control salt tolerance, improve crop yield, and create resistance to pathogens.

The possibilities for CRISPR technology seem almost limitless, Church says. If researchers have stored a genetic sequence in a computer, they can order a robot to produce a piece of DNA from the data. That piece can then be put into a cell to change the genome. Church believes that CRISPR is so promising that last year he co-founded a genome-editing company, Editas, to develop drugs for currently incurable diseases.

Source: news.nationalgeographic.com

See on Scoop.itCardiovascular and vascular imaging

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