News, Analysis, Trends, Management Innovations for
Clinical Laboratories and Pathology Groups

Hosted by Robert Michel

News, Analysis, Trends, Management Innovations for
Clinical Laboratories and Pathology Groups

Hosted by Robert Michel
Sign In

Cambridge Researchers in UK Develop ‘Unknome Database’ That Ranks Proteins by How Little is Known about Their Functions

Scientists believe useful new clinical laboratory assays could be developed by better understanding the huge number of ‘poorly researched’ genes and the proteins they build

Researchers have added a new “-ome” to the long list of -omes. The new -ome is the “unknome.” This is significant for clinical laboratory managers because it is part of an investigative effort to better understand the substantial number of genes, and the proteins they build, that have been understudied and of which little is known about their full function.

Scientists at the Medical Research Council Laboratory of Molecular Biology (MRC-LMB) in Cambridge, England, believe these genes are important. They have created a database of thousands of unknown—or “unknome” as they cleverly dubbed them—proteins and genes that have been “poorly understood” and which are “unjustifiably neglected,” according to a paper the scientist published in the journal PLOS Biology titled, “Functional Unknomics: Systematic Screening of Conserved Genes of Unknown Function.”

The Unknome Database includes “thousands of understudied proteins encoded by genes in the human genome, whose existence is known but whose functions are mostly not,” according to a news release.

The database, which is available to the public and which can be customized by the user, “ranks proteins based on how little is known about them,” the PLOS Biology paper notes.

It should be of interest to pathologists and clinical laboratory scientists. The fruit of this research may identify additional biomarkers useful in diagnosis and for guiding decisions on how to treat patients.

Sean Munro, PhD

“These uncharacterized genes have not deserved their neglect,” said Sean Munro, PhD (above), MRC Laboratory of Molecular Biology in Cambridge, England, in a press release. “Our database provides a powerful, versatile and efficient platform to identify and select important genes of unknown function for analysis, thereby accelerating the closure of the gap in biological knowledge that the unknome represents.” Clinical laboratory scientists may find the Unknome Database intriguing and useful. (Photo copyright: Royal Society.)

Risk of Ignoring Understudied Proteins

Proteomics (the study of proteins) is a rapidly advancing area of clinical laboratory testing. As genetic scientists learn more about proteins and their functions, diagnostics companies use that information to develop new assays. But did you know that researchers tend to focus on only a small fraction of the total number of protein-coding DNA sequences contained in the human genome?

The study of proteomics is primarily interested in the part of the genome that “contains instructions for building proteins … [which] are essential for development, growth, and reproduction across the entire body,” according to Scientific American. These are all protein-coding genes.

Proteomics estimates that there are more than two million proteins in the human body, which are coded for 20,000 to 25,000 genes, according to All the Science.

To build their database, the MRC researchers ranked the “unknome” proteins by how little is known about their functions in cellular processes. When they tested the database, they found some of these less-researched proteins important to biological functions such as development and stress resistance. 

“The role of thousands of human proteins remains unclear and yet research tends to focus on those that are already well understood,” said Sean Munro, PhD, MRC Laboratory of Molecular Biology in Cambridge, England, in the news release. “To help address this we created an Unknome database that ranks proteins based on how little is known about them, and then performed functional screens on a selection of these mystery proteins to demonstrate how ignorance can drive biological discovery.”

Munro created the Unknome Database along with Matthew Freeman, PhD, Head of England’s Sir William Dunn School of Pathology, University of Oxford.

In the paper, they acknowledged the human genome encodes about 20,000 proteins, and that the application of transcriptomics and proteomics has “confirmed that most of these new proteins are expressed, and the function of many of them has been identified.

“However,” the authors added, “despite over 20 years of extensive effort, there are also many others that still have no known function.”

They also recognized limited resources for research and that a preference for “relative safety” and “well-established fields” are likely holding back discoveries.

The researchers note “significant” risks to continually ignoring unexplored proteins, which may have roles in cell processes, serve as targets for therapies, and be associated with diseases as well as being “eminently druggable,” Genetic Engineering News reported.

Setting up the Unknome Database

To develop the Unknome Database, the researchers first turned to what has already come to fruition. They gave each protein in the human genome a “knownness” score based on review of existing information about “function, conservation across species, subcellular localization, and other factors,” Interesting Engineering reported.

It turns out, 3,000 groups of proteins (805 with a human protein) scored zero, “showing there’s still much to learn within the human genome,” Science News stated, adding that the Unknome Database catalogues more than 13,000 protein groups and nearly two million proteins. 

The researchers then tested the database by using it to determine what could be learned about 260 “mystery” genes in humans that are also present in Drosophila (small fruit flies).

“We used the Unknome Database to select 260 genes that appeared both highly conserved and particularly poorly understood, and then applied functional assays in whole animals that would be impractical at genome-wide scale,” the researchers wrote in PLOS Biology.

“We initially selected all genes that had a knownness score of ≤1.0 and are conserved in both humans and flies, as well as being present in at least 80% of available metazoan genome sequences. … After testing for viability, the nonessential genes were then screened with a panel of quantitative assays designed to reveal potential roles in a wide range of biological functions,” they added.

“Our screen in whole organisms reveals that, despite several decades of extensive genetic screens in Drosophila, there are many genes with essential roles that have eluded characterization,” the researchers conclude.

Clinical Laboratory Testing Using the Unknome Database

Future use of the Unknome Database may involve CRISPR technology to explore functions of unknown genes, according to the PLOS Biology paper.

Munro told Science News the research team may work with other research efforts aimed at understanding “mysterious proteins,” such as the Understudied Proteins Initiative.

The Unknome Database’s ability to be customized by others means researchers can create their own “knownness” scores as it applies to their studies. Thus, the database could be a resource in studies of treatments or medications to fight diseases, Chemistry World noted.

According to a statement prepared for Healthcare Dive by SomaLogic, a Boulder, Colorado-based protein biomarker company, diagnostic tests that measure proteins can be applied to diseases and conditions such as:

In a study published in Science Translational Medicine, SomaLogic’s SomaScan assay was reportedly successful in predicting the likelihood within four years of myocardial infarction, heart failure, stroke, and even death.

“The 27-protein model has potential as a ‘universal’ surrogate end point for cardiovascular risk,” the researchers wrote in Science Translational Medicine.

Proteomics definitely has its place in clinical laboratory testing. The development of MRC-LMB’s Unknome Database will help researchers’ increase their knowledge about the functions of more proteins which should in turn lead to new diagnostic assays for labs.

—Donna Marie Pocius

Related Information:

Mapping the ‘Unknome’ May Reveal Critical Genes Scientists Have Ignored

How Many Proteins Exist?

Unknome: A Database of Human Genes We Know Almost Nothing About

Functional Unknomics: Systematic Screening of Conserved Genes of Unknown Function

Unknome Database Ranks Proteins Based on How Little is Known about Them

How a New Database of Human Genes Can Help Discover New Biology

The Unknome Catalogs Nearly Two Million Proteins. Many are Mysterious

Into the Unknome: Scientists at MRC LMB in Cambridge Create Database Ranking Human Proteins by How Little We know About Them

Scientists Hope to Illuminate Unknown Human Proteins with New Public Database

Proteomic Tests Empower Precision Medicine

A Proteomic Surrogate for Cardiovascular Outcomes That is Sensitive to Multiple Mechanisms of Change in Risk

University of Athens Researchers Create Wooden Tongue Depressor with Biosensing Capabilities Capable of Identifying Biomarkers

Scientists believe the biodegradable device could someday help detect multiple saliva biomarkers. If true, it might provide a new type of test for clinical laboratories

When it comes to tongue depressors, it turns out you can teach an old dog new tricks. Researchers from National and Kapodistrian University of Athens Greece (NKUA) have taken this simple wooden medical tool and developed a high-tech biosensing device that may someday be useful at the point-of-care in hospitals and as a new type of test for clinical laboratories.

Using diode laser engraving, the researchers developed an “eco-friendly disposable sensor that can measure glucose levels and other biomarkers in saliva,” according to LabMedica.

This proof-of-principle biosensing device demonstrates the feasibility of “simultaneous determination of glucose and nitrite in artificial saliva,” according to the NKUA scientists who hope it will help doctors diagnose a variety of conditions.

The researchers published a paper on the development of their new wooden biosensor in the journal Analytical Chemistry titled, “Wooden Tongue Depressor Multiplex Saliva Biosensor Fabricated via Diode Laser Engraving.”

biosensing tongue depressor

In their published paper, the scientists at the University of Athens wrote that their wooden electrochemical biosensing tongue depressor (above) “is an easy-to-fabricate disposable point-of-care chip with a wide scope of applicability to other bioassays,” and that “it paves the way for the low-cost and straightforward production of wooden electrochemical platforms.” Might this and other similar biosensing devices eventually find their way to clinical laboratories for use in identifying and tracking certain biomarkers for disease? (Photo copyright: University of Athens.)


How to Make a High-Tech Tongue Depressor

Though wood is affordable and accessible, it doesn’t conduct electricity very well. The researchers’ first attempt to solve this problem was to use the wood as “a passive substrate” to which they coated “metals and carbon-based inks,” LabMedica reported. After that they tried using high-powered lasers to “char specific regions on the wood, turning those spots into conductive graphite.” But that process was complicated, expensive, and a fire hazard.

The researchers eventually turned to “low-power diode lasers” which have been used successfully “to make polyimide-based sensors but have not previously been applied to wooden electronics and electrochemical sensors,” LabMedica noted.

In their Analytical Chemistry paper, the researchers wrote, “A low-cost laser engraver, equipped with a low-power (0.5 W) diode laser, programmably irradiates the surface of the WTD [wooden tongue depressor], forming two mini electrochemical cells (e-cells). The two e-cells consist of four graphite electrodes: two working electrodes, a common counter, and a common reference electrode. The two e-cells are spatially separated via programmable pen-plotting, using a commercial hydrophobic marker pen.”

In other words, the researchers “used a portable, low-cost laser engraver to create a pattern of conductive graphite electrodes on a wooden tongue depressor, without the need for special conditions. Those electrodes formed two electrochemical cells separated by lines drawn with a water-repellent permanent marker,” states a press release from the American Chemical Society.

“The biosensor was then used to quickly and simultaneously measure nitrite and glucose concentrations in artificial saliva. Nitrite can indicate oral diseases like periodontitis, while glucose can serve as a diagnostic for diabetes. The researchers suggest that these low-cost devices could be adapted to detect other saliva biomarkers and could be easily and rapidly produced on-site at medical facilities,” LabMedica reported.

Benefits of Using Wood

One of the major benefits of using wood for their biosensing device is how environmentally friendly it is. “Since wood is a renewable, biodegradable naturally occurring material, the development of conductive patterns on wood substrates is a new and innovative chapter in sustainable electronics and sensors,” the researchers wrote in Analytical Chemistry.

Additionally, the tongue depressor features “An easy-to-fabricate disposable point-of-care chip with a wide scope of applicability to other bioassays, while it paves the way for the low-cost and straightforward production of wooden electrochemical platforms,” the researchers added.

This adds to a growing trend of developing bioassay products that keep the health of our planet in mind.

In “University of Pennsylvania Researchers Use Cellulose to Produce Accurate Rapid COVID-19 Test Results Faster and Cheaper than Traditional PCR Tests,” we covered how researchers at the University of Pennsylvania (UPenn) had developed a biodegradable rapid COVID-19 test that uses bacterial cellulose (BC) instead of printed circuit boards (PCBs) as its biosensor.

“This new BC test is non-toxic, naturally biodegradable and both inexpensive and scalable to mass production, currently costing less than $4.00 per test to produce. Its cellulose fibers do not require the chemicals used to manufacture paper, and the test is almost entirely biodegradable,” a UPenn blog post noted.

New Future Tool Use in Clinical Diagnostics

Who could have predicted that the lowly wooden tongue depressor would go high tech with technology that uses lasers to convert it to an electrochemical multiplex biosensing device for oral fluid analysis? This is yet another example of technologies cleverly applied to classic devices that enable them to deliver useful diagnostic information about patients.

And while a biosensing tongue depressor is certainly a diagnostic tool that may be useful for nurses and physicians in clinic and hospital settings, with further technology advancements, it could someday be used to collect specimens that measure more than glucose and nitrites.

—Kristin Althea O’Connor

Related Information:

Wooden Tongue Depressor Multiplex Saliva Biosensor Fabricated via Diode Laser Engraving

Say ‘Ahhh’: This Ecofriendly Tongue Depressor Checks Vitals

Biosensor-Fabricated Wooden Tongue Depressor Measures Glucose and Nitrite in Saliva

Researchers in Japan Have Developed a ‘Smart’ Diaper Equipped with a Self-powered Biosensor That Can Monitor Blood Glucose Levels in Adults

The ongoing study shows promise in the general development of self-powered wearable biosensors, the researchers say, in a development that has implications for clinical laboratory testing

Years back, it would be science fiction to describe a wearable garment that can not only measure an individual’s biomarkers in real-time, but also generates the power the device needs from the very specimen used for the measurement. Clinical laboratory managers and pathologists may find this new technology to be an interesting milestone on the path to wearable diagnostic devices.

With cases of diabetes on the rise across the globe, innovative ways to monitor the disease and simplify care is critical for effective diagnoses and treatment. Now, a team of researchers at Tokyo University of Science (TUS) in Japan have recently developed a diaper that detects blood glucose levels in individuals living with this debilitating illness.

Of equal interest, this glucose-testing diaper has a self-powered sensor that utilizes a biofuel cell to detect the presence of urine, measure its glucose concentration, and then wirelessly transmit that information to medical personnel and patients. The biofuel cell generates its own power directly from the urine.

Glucose in urine provides valuable data regarding blood sugar levels and can be used as an alternative to frequent blood draws to measure those levels. Monitoring the onset and progression of diabetes is crucial to making patient care easier, particularly in elderly and long-term care patients. Widespread use of these diapers in skilled nursing facilities and other healthcare settings could create an opportunity for clinical laboratories to do real-time monitoring of the blood sugar measurements and alert providers when a patient’s glucose levels indicate the need for attention.

“Besides monitoring glucose in the context of diabetes, diaper sensors can be used to remotely check for the presence of urine if you stock up on sugar as fuel in advance,” said Isao Shitanda, PhD, Associate Professor at the Department of Pure and Applied Chemistry, Faculty of Science and Technology, Tokyo University of Science, in a TUS press release. “In hospitals or nursing care sites, where potentially hundreds of diapers have to be checked periodically, the proposed device could take a great weight off the shoulders of caregivers,” he added.

The TUS researchers published their findings in the peer-reviewed journal ACS Sensors, titled, “Self-Powered Diaper Sensor with Wireless Transmitter Powered by Paper-Based Biofuel Cell with Urine Glucose as Fuel.”

Creating Electricity from Urine

Through electrochemistry, the scientists created their paper-based biofuel cell so that it could determine the amount of glucose in urine via reduction oxidation reactions, or redox for short. Using a process known as “graft polymerization,” they developed a special anode that allowed them to “anchor glucose-reactive enzymes and mediator molecules to a porous carbon layer, which served as the base conductive material,” the press release noted.

The biosensor was tested using artificial urine at different glucose levels. The energy generated from the urine then was used to power up a Bluetooth transmitter to remotely monitor the urine concentration via a smartphone. The TUS researchers determined their biofuel cell was able to detect sugar levels present in urine within one second. The diaper with its sensor could help provide reliable and easy monitoring for diabetic and pre-diabetic patients.

“We believe the concept developed in this study could become a very promising tool towards the general development of self-powered wearable biosensors,” Shitanda said in the press release.

Isao Shitanda, PhD

According to the Isao Shitanda, PhD (above), lead author of the TUS study, 34.2 million people, or just over 10% of the US population, were diagnosed with diabetes in 2020. The federal Centers for Disease Control and Prevention estimates that an additional 7.3 million people have diabetes and are undiagnosed. A self-powered biosensor that detects diabetes and prediabetes in urine could help clinical laboratories and doctors catch the disease early and/or monitor its treatment. (Photo copyright: Tokyo University of Science.)

The World Health Organization (WHO) estimates that 422 million people globally were living with diabetes in 2014, and that 1.5 million deaths could be attributed directly to diabetes in 2019.

Other “Smart Diaper” Products

The Lumi by Pampers smart diaper contains RFID sensors that detect moisture and alert parents or caregivers when it is time to change the baby’s diaper. These smart diapers help prevent skin irritations and other health issues that can arise from leaving a soiled diaper on for too long. And in “New ‘Smart Diaper’ Tests Baby’s Urine for Urinary Tract Infections, Dehydration, and Kidney Problems—Then Alerts Baby’s Doctor,” Dark Daily reported on a smart diaper developed by Pixie Scientific of New York that could test a baby’s urine for various urinary conditions.

A panel of colored squares embedded on the front of the diaper changed color if specific chemical reactions fell outside normal parameters. If such a color change was observed, a smart phone application could relay that information to the baby’s doctor to determine if any further testing was needed.

Since we wrote that ebriefing in 2013, Pixie Scientific has expanded its product line to include Pixie Smart Pads, which when added to a diaper, enable’s caregivers to monitor wearers for urinary tract infections (UTI) and report findings by smartphone to their doctors.

These examples demonstrate ways in which scientists are working to combine diagnostics with existing products to help people better manage their health. Wearable electronics and biosensors are increasingly helping medical professionals and patients monitor bodily functions and chronic diseases.

As clever as these new wearable devices may be, there is still the need to monitor the diagnostic data they produce and interpret this data as appropriate to the patient’s state of health. Thus, it is likely that pathologists and clinical laboratory professionals will continue to play an important role in helping consumers and providers interpret diagnostic information collected by wearable, point-of-care testing technology.

JP Schlingman

Related Information

Making Patient Care Easier: Self-powered Diaper Sensors That Monitor Urine Sugar Levels

Self-Powered Diaper Sensor with Wireless Transmitter Powered by Paper-Based Biofuel Cell with Urine Glucose as Fuel

National Diabetes Statistics Report, 2020

WHO Fact Sheet on Diabetes

The Smart Diaper is Coming. Who Actually Wants it?

What Is a Smart Diaper, and How Does It Work?

Are Smart Diapers Safe?

New ‘Smart Diaper’ Tests Baby’s Urine for Urinary Tract Infections, Dehydration, and Kidney Problems—Then Alerts Baby’s Doctor

Independent Clinical Laboratories in Maryland May Need to Step-up Outreach with Hospitals as New CMS Program Launches Jan. 1

Clinical laboratory leaders will want to pay close attention to a significant development in Maryland. The state’s All-Payer Medicare program—the nation’s only all-payer hospital rate regulation system—is broadening in scope to include outpatient services starting Jan. 1. The expanded program could impact independent medical laboratories, according to the Maryland Hospital Association (MHA), which told Dark Daily that those labs may see hospitals reaching out to them.

The Centers for Medicare and Medicaid Services (CMS) and the state of Maryland expect to save $1 billion by 2023 in expanding Maryland’s existing All-Payer Model—which focused only on inpatient services since 2014—to also include primary care physicians, skilled nursing facilities, independent clinical laboratories, and more non-hospital settings, according to a CMS statement.

Healthcare Finance notes that it represents “the first time, CMS is holding a state fully at risk for the total cost of care for Medicare beneficiaries.”

Value of Precision Medicine and Coordination of Care to Clinical Labs

“If a patient receives care at a [medical] laboratory outside of a hospital, Maryland hospitals would be looking at ways to coordinate the sharing of that freestanding laboratory information, so that the hospital can coordinate the care of that patient both within and outside the hospital setting,” Erin Cunningham, Communications Manager at MHA, told Dark Daily. Such a coordinating of efforts and sharing of clinical laboratory patient data should help promote precision medicine goals for patients engaged with physicians throughout Maryland’s healthcare networks.

The test of the new program—called the Total Cost of Care (TCOC) Model—also could be an indication that Medicare officials are intent on moving both inpatient and outpatient healthcare providers away from reimbursements based on fees-for-services.

CMS and the state of Maryland said TCOC gives diverse providers incentives to coordinate, center on patients, and save Medicare per capita costs of care each year.

“What they are really doing is tracking how effective we are at managing the quality and the costs of those particular patients that are managed by the physicians and the hospitals together,” Kevin Kelbly, VP and Chief Financial Officer at Carroll Hospital in Westminster, told the Carroll County Times. “They will have set up certain parameters. If we hit those parameters, there could be a shared savings opportunity between the hospitals and the providers,” he added. (Photo copyright: LifeBridge Health.)

The TCOC runs from 2019 through 2023, when it may be extended by officials for an additional five years.

How Does it Work?

The TCOC Model, like the earlier All-Payer Model, will limit Medicare’s costs in Maryland through a per capita, population-based payment, Healthcare Finance explained.

It includes three programs, including the:

  • Maryland Primary Care Program (MDPCP), designed to incentivize physician practices by giving additional per beneficiary, per month CMS payments, and incentives for physicians to reduce the number of patients hospitalize;
  • Care Redesign Program (CRP), which is a way for hospitals to make incentive payments to their partners in care. In essence, rewards may be given to providers that work efficiently with the hospital to improve quality of services; and,
  • Hospital Payment Program, a population-based payment model that reimburses Maryland hospitals annually for hospital services. CMS provides financial incentives to hospitals that succeed in value-based care and reducing unnecessary hospitalizations and readmissions.

CMS and Maryland officials also identified these six high-priority areas for population health improvement:

  • Substance-use disorder;
  • Diabetes;
  • Hypertension;
  • Obesity;
  • Smoking; and
  • Asthma.

“We are going to save about a billion dollars over the next five years, but we are also providing better quality healthcare. So it’s going to affect real people in Maryland, and it helps us keep the whole healthcare system from collapsing, quite frankly,” Maryland Gov. Larry Hogan, told the Carroll County Times.

OneCare in Vermont, Different Approach to One Payer

Maryland is not the only state to try an all-payer model. Vermont’s OneCare is a statewide accountable care organization (ACO) model involving the state’s largest payers: Medicare, Medicaid, and Blue Cross and Blue Shield of Vermont, Healthcare Dive pointed out. The program aims to increase the number of patients under risk-based contracting and, simultaneously, encourage providers to meet population health goals, a Commonwealth Fund report noted.

Both Maryland’s and Vermont’s efforts indicate that payment plans which include value-based incentives are no longer just theory. In some markets, fees-for-service payment models may be gone for good.

Clinical laboratory leaders may want to touch base with their colleagues in Maryland and Vermont to learn how labs in those states are engaging providers and performing under payment programs that, if successful, could replace existing Medicare payment models in other states.

—Donna Marie Pocius

 

Related Information:

Maryland’s Total Cost of Care Model

Maryland All-Payer Model Expands to Include Outpatient Services

Gov. Hogan Sees Maryland Model as Example for U.S. Healthcare

The Maryland Model

Gov. Larry Hogan, Federal Government Sign Maryland Model All-Payer Contract

CMS Expands Maryland’s All-Payer Program to Outpatient Services

Vermont’s Bold Experiment in Community Driven Healthcare Reform

Might Proteomics Challenge the Cult of DNA-centricity? Some Clinical Laboratory Diagnostic Developers See Opportunity in Protein-Centered Diagnostics

Should greater attention be given to protein damage in chronic diseases such as Alzheimer’s and diabetes? One life scientist says “yes” and suggests changing how test developers view the cause of age-related and degenerative diseases

DNA and the human genome get plenty of media attention and are considered by many to be unlocking the secrets to health and long life. However, as clinical laboratory professionals know, DNA is just one component of the very complex organism that is a human being.

In fact, DNA, RNA, and proteins are all valid biomarkers for medical laboratory tests and, according to one life scientist, all three should get equal attention as to their role in curing disease and keeping people healthy.

Along with proteins and RNA, DNA is actually an “equal partner in the circle of life,” wrote David Grainger, PhD, CEO of Methuselah Health, in a Forbes opinion piece about what he calls the “cult of DNA-centricity” and its relative limitations.

Effects of Protein Damage

“Aging and age-related degenerative diseases are caused by protein damage rather than by DNA damage,” explained Grainger, a Life Scientist who studies the role proteins play in aging and disease. “DNA, like data, cannot by itself do anything. The data on your computer is powerless without apps to interpret it, screens and speakers to communicate it, keyboards and touchscreens to interact with it.”

“Similarly,” he continued, “the DNA sequence information (although it resides in a physical object—the DNA molecule—just as computer data resides on a hard disk) is powerless and ethereal until it is translated into proteins that can perform functions,” he points out.

According to Grainger, diseases such as cystic fibrosis and Duchenne Muscular Dystrophy may be associated with genetic mutation. However, other diseases take a different course and are more likely to develop due to protein damage, which he contends may strengthen in time, causing changes in cells or tissues and, eventually, age-related diseases.

“Alzheimer’s disease, diabetes, or autoimmunity often take decades to develop (even though your genome sequence has been the same since the day you were conceived); the insidious accumulation of the damaged protein may be very slow indeed,” he penned.

“But so strong is the cult of DNA-centricity that most scientists seem unwilling to challenge the fundamental assumption that the cause of late-onset diseases must lie somewhere in the genome,” Grainger concludes.

Shifting Focus from Genetics to Proteins

Besides being CEO of Methuselah Health, Grainger also is Co-Founder and Chief Scientific Advisor at Medicxi, a life sciences investment firm that backed Methuselah Health with $5 million in venture capital funding for research into disease treatments that focus on proteins in aging, reported Fierce CEO.

Methuselah Health, founded in 2015 in Cambridge, UK, with offices in the US, is reportedly using post-translational modifications for analysis of many different proteins.

“At Methuselah Health, we have shifted focus from the genetics—which tells you in an ideal world how your body would function—to the now: this is how your body functions now and this is what is going wrong with it. And that answer lies in the proteins,” stated Dr. David Grainger (above), CEO of Methuselah Health, in an interview with the UK’s New NHS Alliance. Click on this link to watch the full interview. [Photo and caption copyright: New NHS Alliance.]

How Does it Work?

This is how Methuselah Health analyzes damaged proteins using mass spectrometry, according to David Mosedale, PhD, Methuselah Health’s Chief Technology Officer, in the New NHS Alliance story:

  • Protein samples from healthy individuals and people with diseases are used;
  • Proteins from the samples are sliced into protein blocks and fed slowly into a mass spectrometer, which accurately weighs them;
  • Scientists observe damage to individual blocks of proteins;
  • Taking those blocks, proteins are reconstructed to ascertain which proteins have been damaged;
  • Information is leveraged for discovery of drugs to target diseases.

Mass spectrometry is a powerful approach to protein sample identification, according to News-Medical.Net. It enables analysis of protein specificity and background contaminants. Interactions among proteins—with RNA or DNA—also are possible with mass spectrometry.

Methuselah Health’s scientists are particularly interested in the damaged proteins that have been around a while, which they call hyper-stable danger variants (HSDVs) and consider to be the foundation for development of age-related diseases, Grainger told WuXi AppTec.

“By applying the Methuselah platform, we can see the HSDVs and so understand which pathways we need to target to prevent disease,” he explained.

For clinical laboratories, pathologists, and their patients, work by Methuselah Health could accelerate the development of personalized medicine treatments for debilitating chronic diseases. Furthermore, it may compel more people to think of DNA as one of several components interacting that make up human bodies and not as the only game in diagnostics.

—Donna Marie Pocius

Related Information:

The Cult of DNA-Centricity

Methuselah Health CEO David Grainger Out to Aid Longevity

VIDEO: Methuselah Health, Addressing Diseases Associated with Aging

Understanding and Slowing the Human Aging Clock Via Protein Stability

Using Mass Spectrometry for Protein Complex Analysis

 

 

;