Lawrence Tabak, D.D.S., Ph.D.
Words Matter, Actions Have Impact: Updating the NIH Mission Statement
Posted on by Lawrence Tabak, D.D.S., Ph.D.
I’ve previously written and spoken about how diverse perspectives are essential to innovation and scientific advancement.1 Scientists and experts with different backgrounds and lived experiences can offer diverse and creative solutions to solve complex problems. We’re taking steps to create a culture within the biomedical and behavioral research enterprise of inclusion, equity, and respect for every member of society. We are also working to strengthen our efforts to include populations in research that have not been historically included or equitably treated.
As part of our effort to ensure that all people are included in NIH research, we’re updating our mission statement to reflect better the spirit of the agency’s work to optimize health for all people. The proposed, new statement is as follows:
“To seek fundamental knowledge about the nature and behavior of living systems and to apply that knowledge to optimize health and prevent or reduce illness for all people.”
Recently, we asked a team of subject matter experts to form a subgroup of the Advisory Committee to the Director’s Working Group on Diversity to advise NIH on how we can support the inclusion of people with disabilities in the scientific workforce and in the research enterprise. One of the subgroup’s recommendations was to update the current NIH mission statement to remove “reducing disability.” The subgroup explained that this language could be interpreted as perpetuating ableist beliefs that people with disabilities are flawed and need to be “fixed.”
Disability is often viewed solely as a medical problem requiring a cure or correction. However, this view can be stigmatizing as it focuses only on a perceived flaw in the individual. It does not account for how people identify and view themselves. It also does not account for the ways that society can be unaccommodating for people with disabilities.2,3 It’s important that we recognize the varied, nuanced and complex lived experiences among people with disabilities, many of whom may also face additional barriers as members of racial, ethnic, sexual and gender minority groups, people with lower incomes, and people who live in rural communities that are medically underserved.
Some of you may recall that we updated our mission statement in 2013 to remove phrasing that implied disability was a burden, since many people do not find their disabilities to be burdensome. As we re-examine our mission statement again in 2023, I’m reminded that strengthening diversity, equity, inclusion and accessibility (DEIA) is an ongoing process requiring our sustained engagement.
The input we’ve received has made it clear that words matter—language can perpetuate prejudices and implicit attitudes, which in turn can affect people’s behavior. We also acknowledge that it is time for the agency to review and consider how the words of our mission statement may affect the direction of our science.
In response, we are seeking the public’s input on the proposed, revised statement to ensure that it reflects the NIH mission as accurately as possible. The NIH mission should be inclusive of those who conduct research, those who participate in research, and those we serve—the American public. Anyone interested in providing feedback can send it to this submission website through Nov. 24, 2023.
We are grateful for the subgroup’s work and appreciate their time examining this issue in depth. I also want to recognize the helpful feedback that we’ve received from the disability community within NIH through the years, including recent listening sessions that helped guide the development of NIH’s DEIA Strategic Plan.
Going beyond the scientific workforce, both the Strategic Plan and the subgroup’s report recognize the importance of research on health disparities. People with disabilities often experience health conditions leading to poorer health and face discrimination, inequality and structural barriers that inhibit access to health care, resulting in poorer health outcomes. NIH recently designated people with disabilities as a population with health disparities to encourage research specific to the health issues and unmet health needs of the disability community. NIH also issued a funding opportunity calling for research applications that address the intersecting impact of disability, race, ethnicity, and socioeconomic status on healthcare access and health outcomes.
The subgroup provided additional recommendations that we’re in the process of reviewing. We know one of our key challenges is data gathering that would give us a better snapshot of the workforce and the research we support. According to the CDC, 1 in 4 adults in the United States have a disability. However, in 2022 only 1.3% of principal investigators on NIH research grant applications and awards self-reported a disability. In 2022, 8.6% of the NIH workforce reported having a disability; however, I recognize that this is likely not reflective of the true percentage. We know that some people do not want to self-disclose for numerous reasons, including the fear of discrimination.
We hope that, in part, changing the mission statement would be a step in the right direction of changing the culture at NIH and the larger biomedical and behavioral research enterprise. I know that our efforts have sometimes fallen short, but we will continually work to foster a culture of inclusive excellence where people with disabilities and all people feel like they truly belong and are embraced as an asset to the NIH mission.
References:
[1] MA Bernard et al. The US National Institutes of Health approach to inclusive excellence. Nature Medicine DOI:10.1038/s41591-021-01532-1 (2021)
[2] DS Dunn & EE Andrews. Person-first and identity-first language: Developing psychologists’ cultural competence using disability language The American Psychologist DOI: 10.1037/a0038636 (2015)
[3] International Classification of Functioning, Disability and Health (2002) Towards a Common Language for Functioning, Disability and Health. World Health Organization https://cdn.who.int/media/docs/default-source/classification/icf/icfbeginnersguide.pdf
Links:
ACD Working Group on Diversity, Subgroup on Individuals with Disabilities, NIH
Request for Information: Inviting Comments and Suggestions on Updating the NIH Mission Statement, NIH
NIH designates people with disabilities as a population with health disparities, Sept. 26, 2023, NIH News Releases
NIH-Wide Strategic Plan for Diversity, Equity, Inclusion, and Accessibility (DEIA), NIH
Disability and Health Overview, CDC
Data on Researchers’ Self-Reported Disability Status, NIH Office Of Extramural Research
Total NIH Workforce Demographics for Fiscal Year 2022 Fourth Quarter, NIH Office of Equity, Diversity, and Inclusion
Revolutionizing Technology to Treat Genetic Diseases: The NIH TARGETED Challenge
Posted on by Lawrence Tabak, D.D.S., Ph.D. and Douglas M. Sheeley, Sc.D., NIH Common Fund
Recent scientific advances in the field of genome editing, which enables precise modifications to DNA, have greatly increased the potential to treat genetic diseases. Despite revolutionary progress in this area, treatment options remain limited. Several scientific challenges must be addressed before gene editing can be widely used in the clinic. For example, gene editing tools may cut in unintended areas in addition to the target site, and more research is necessary to understand how these errors affect patients.
Another key challenge is that many organs remain difficult to reach with gene therapies because we do not have adequate ways to deliver gene editing tools to all cells. While efficient delivery technologies exist for some targets, like liver cells, novel and specialized delivery methods designed for specific cell types and locations in the body are needed to ensure genome editing tools can reach sufficient numbers and types of somatic cells to modify DNA safely and effectively. Somatic cell gene therapies target non-reproductive cells, so the changes only affect the person who receives the gene therapy and are not passed down generation to generation.
To address these challenges, NIH launched the TARGETED (Targeted Genome Editor Delivery) Challenge, a multi-phase competition funded through the NIH Common Fund as part of the NIH Somatic Cell Genome Editing (SCGE) Program. SCGE was funded in 2018 to improve the efficacy and specificity of genome editing to help reduce the burden of common and rare diseases caused by genetic changes.
As part of the TARGETED Challenge, research teams will develop technologies for delivering genome editors to somatic cells. NIH will award up to $6 million in prize money across the challenge.
The Challenge is focused on finding delivery systems that can be programmed with biological or chemical tags that correspond to specific target cells and tissues. These tags would direct the delivery systems and the genome editing therapies to the target cells or tissues—like mail being delivered to different zip codes. Such programmable delivery systems would improve gene editing efficacy by targeting diseases at their source and would enhance safety by reducing undesired impacts on other tissues or cells. Ultimately, the development of safe and effective programmable delivery technologies for genome editors that are applicable to multiple diseases would help advance the application of gene editing therapies into the clinic.
The Challenge also is interested in gene editing delivery technologies that can cross the blood-brain barrier (BBB). The BBB protects the brain by blocking harmful substances from entering the fluid of the central nervous system. Unfortunately, it also blocks the uptake of many therapeutics, hindering treatments for brain diseases. While viruses are one of the few approaches that can be used as delivery systems to cross the BBB, they are expensive and difficult to make. Therefore, there is a pressing need for effective non-viral technologies to deliver genome editing machinery across the BBB to a substantial proportion of clinically relevant brain cell types. Such technologies could have broad implications for the treatment of many neurogenetic diseases.
Solutions to both target areas would not only provide proof-of-concept for the delivery of genome editing therapeutics, but they could be adapted to deliver other types of therapies to treat common and rare diseases in general.
The first phase of the Challenge began on May 15, 2023 and will run until October 5, 2023. More information about the Challenge is available on the TARGETED Genome Editor Delivery Challenge website.
Links:
“National Institutes of Health launch TARGETED Challenge,” NIH Common Fund, May 15, 2023
TARGETED Genome Editor Delivery Challenge (NIH Common Fund)
Somatic Cell Genome Editing Program (NIH Common Fund)
NIH Support: The SCGE program is led by the NIH Common Fund, the National Center for Advancing Translational Sciences (NCATS), and the National Institute of Neurological Disorders and Stroke (NINDS). The Brain Research Through Advancing Innovative Neurotechnologies (BRAIN) Initiative and the National Heart, Lung, and Blood Institute (NHLBI) are also contributors to this Challenge.
Research!America’s National Health Research Forum
Posted on by Lawrence Tabak, D.D.S., Ph.D.
Rice-Sized Device Tests Brain Tumor’s Drug Responses During Surgery
Posted on by Lawrence Tabak, D.D.S., Ph.D.
Scientists have made remarkable progress in understanding the underlying changes that make cancer grow and have applied this knowledge to develop and guide targeted treatment approaches to vastly improve outcomes for people with many cancer types. And yet treatment progress for people with brain tumors known as gliomas—including the most aggressive glioblastomas—has remained slow. One reason is that doctors lack tests that reliably predict which among many therapeutic options will work best for a given tumor.
Now an NIH-funded team has developed a miniature device with the potential to change this for the approximately 25,000 people diagnosed with brain cancers in the U.S. each year [1]. When implanted into cancerous brain tissue during surgery, the rice-sized drug-releasing device can simultaneously conduct experiments to measure a tumor’s response to more than a dozen drugs or drug combinations. What’s more, a small clinical trial reported in Science Translational Medicine offers the first evidence in people with gliomas that these devices can safely offer unprecedented insight into tumor-specific drug responses [2].
These latest findings come from a Brigham and Women’s Hospital, Boston, team led by Pierpaolo Peruzzi and Oliver Jonas. They recognized that drug-screening studies conducted in cells or tissue samples in the lab too often failed to match what happens in people with gliomas undergoing cancer treatment. Wide variation within individual brain tumors also makes it hard to predict a tumor’s likely response to various treatment options.
It led them to an intriguing idea: Why not test various therapeutic options in each patient’s tumor? To do it, they developed a device, about six millimeters long, that can be inserted into a brain tumor during surgery to deliver tiny doses of up to 20 drugs. Doctors can then remove and examine the drug-exposed cancerous tissue in the laboratory to determine each treatment’s effects. The data can then be used to guide subsequent treatment decisions, according to the researchers.
In the current study, the researchers tested their device on six study volunteers undergoing brain surgery to remove a glioma tumor. For each volunteer, the device was implanted into the tumor and remained in place for about two to three hours while surgeons worked to remove most of the tumor. Next, the device was taken out along with the last piece of a tumor at the end of the surgery for further study of drug responses.
Importantly, none of the study participants experienced any adverse effects from the device. Using the devices, the researchers collected valuable data, including how a tumor’s response changed with varying drug concentrations or how each treatment led to molecular changes in the cancerous cells.
More research is needed to better understand how use of such a device might change treatment and patient outcomes in the longer term. The researchers note that it would take more than a couple of hours to determine how treatments produce less immediate changes, such as immune responses. As such, they’re now conducting a follow-up trial to test a possible two-stage procedure, in which their device is inserted first using minimally invasive surgery 72 hours prior to a planned surgery, allowing longer exposure of tumor tissue to drugs prior to a tumor’s surgical removal.
Many questions remain as they continue to optimize this approach. However, it’s clear that such a device gives new meaning to personalized cancer treatment, with great potential to improve outcomes for people living with hard-to-treat gliomas.
References:
[1] National Cancer Institute Surveillance, Epidemiology, and End Results Program. Cancer Stat Facts: Brain and Other Nervous System Cancer.
[2] Peruzzi P et al. Intratumoral drug-releasing microdevices allow in situ high-throughput pharmaco phenotyping in patients with gliomas. Science Translational Medicine DOI: 10.1126/scitranslmed.adi0069 (2023).
Links:
Brain Tumors – Patient Version (National Cancer Institute/NIH)
Pierpaolo Peruzzi (Brigham and Women’s Hospital, Boston, MA)
Jonas Lab (Brigham and Women’s Hospital, Boston, MA)
NIH Support: National Cancer Institute, National Institute of Biomedical Imaging and Bioengineering, National Institute of Neurological Disorders and Stroke
New Approach to ‘Liquid Biopsy’ Relies on Repetitive RNA in the Bloodstream
Posted on by Lawrence Tabak, D.D.S., Ph.D.
It’s always best to diagnose cancer at an early stage when treatment is most likely to succeed. Unfortunately, far too many cancers are still detected only after cancer cells have escaped from a primary tumor and spread to distant parts of the body. This explains why there’s been so much effort in recent years to develop liquid biopsies, which are tests that can pick up on circulating cancer cells or molecular signs of cancer in blood or other bodily fluids and reliably trace them back to the organ in which a potentially life-threatening tumor is growing.
Earlier methods to develop liquid biopsies for detecting cancers often have relied on the presence of cancer-related proteins and/or DNA in the bloodstream. Now, an NIH-supported research team has encouraging evidence to suggest that this general approach to detecting cancers—including aggressive pancreatic cancers—may work even better by taking advantage of signals from a lesser-known form of genetic material called noncoding RNA.
The findings reported in Nature Biomedical Engineering suggest that the new liquid biopsy approach may aid in the diagnosis of many forms of cancer [1]. The studies show that the sensitivity of the tests varies—a highly sensitive test is one that rarely misses cases of disease. However, they already have evidence that millions of circulating RNA molecules may hold promise for detecting cancers of the liver, esophagus, colon, stomach, and lung.
How does it work? The human genome contains about 3 billion paired DNA letters. Most of those letters are transcribed, or copied, into single-stranded RNA molecules. While RNA is best known for encoding proteins that do the work of the cell, most RNA never gets translated into proteins at all. This noncoding RNA includes repetitive RNA that can be transcribed from millions of repeat elements—patterns of the same few DNA letters occurring multiple times in the genome.
Common approaches to studying RNA don’t analyze repetitive RNA, so its usefulness as a diagnostic tool has been unclear—until recently. Last year, the lab of Daniel Kim at the University of California, Santa Cruz reported [2] that a key genetic mutation that occurs early on in some cancers causes repetitive RNA molecules to be secreted in large quantities from cancer cells, even at the earliest stages of cancer. Non-cancerous cells, by comparison, release much less repetitive RNA.
The findings suggested that liquid biopsy tests that look for this repetitive, noncoding RNA might offer a powerful new way to detect cancers sooner, according to the authors. But first they needed a method capable of measuring it. Due to its oftentimes uncertain functions, the researchers have referred to repetitive, noncoding RNA as “dark matter.”
Using a liquid biopsy platform they developed called COMPLETE-seq, Kim’s team trained computers to detect cancers by looking for patterns in RNA data. The platform enables sequencing and analysis of all protein coding and noncoding RNAs—including any RNA from more than 5 million repeat elements—present in a blood sample. They found that their classifiers worked better when repetitive RNAs were included. The findings lend support to the idea that repetitive, noncoding RNA in the bloodstream is a rich source of information for detecting cancers, which has previously been overlooked.
In a study comparing blood samples from healthy people to those with pancreatic cancer, the COMPLETE-seq technology showed that nearly all people in the study with pancreatic cancer had more repetitive, noncoding RNA in their blood samples compared to healthy people, according to the researchers. They used the COMPLETE-seq test on blood samples from people with other types of cancer as well. For example, their test accurately detected 91% of colorectal cancer samples and 93% of lung cancer samples.
They now plan to look at many more cancer types with samples from additional patients representing a broad range of cancer stages. The goal is to develop a single RNA liquid biopsy test that could detect multiple forms of cancer with a high degree of accuracy and specificity. They note that such a test might also be used to guide treatment decisions and more readily detect a cancer’s recurrence. The hope is that one day a comprehensive liquid biopsy test including coding and noncoding RNA will catch many more cancers sooner, when treatment can be most successful.
References:
[1] RE Reggiardo et al. Profiling of repetitive RNA sequences in the blood plasma of patients with cancer. Nature Biomedical Engineering DOI: 10.1038/s41551-023-01081-7 (2023).
[2] RE Reggiardo et al. Mutant KRAS regulates transposable element RNA and innate immunity via KRAB zinc-finger genes. Cell Reports DOI: 10.1016/j.celrep.2022.111104 (2022).
Links:
Daniel Kim Lab (UC Santa Cruz)
Cancer Screening Overview (National Cancer Institute/NIH)
Early Detection (National Cancer Institute/NIH)
NIH Support: National Cancer Institute, National Heart, Lung, and Blood Institute, National Institute of Diabetes and Digestive and Kidney Diseases
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