Eighth Annual Mount Sinai Innovation Awards

Erik Lium, PhD, Executive Vice President, Mount Sinai Innovation Partners, left, presents the Mount Sinai Inventor of the Year Award to Steven J. Burakoff, MD.

Individuals and teams from the Mount Sinai Health System were honored for significant advances in biomedical research, technology, and medicine at the eighth annual Mount Sinai Innovation Awards ceremony held Monday, October 24.

Through the dedication of presenters, participants, attendees, and event organizers, the Innovation Awards showcase and inspire ingenuity and advances in research, technology, medicine, and health care.

Steven J. Burakoff, MD, Dean for Cancer Innovation and Lillian and Henry M. Stratton Professor of Cancer Medicine at the Icahn School of Medicine at Mount Sinai, received the Mount Sinai Inventor of the Year Award for developing small molecule therapeutic inhibitors targeting HPK1 to regulate the immune response against cancer. This technology entered phase 1 clinical trials in spring 2022. The award recognizes individual or collaborative investigators in the Mount Sinai Health System whose research is making, or has the potential to make, significant positive and product-driven impacts on health.

The Mount Sinai Transaction of the Year Award was given to Manish Arora, PhD, BDS, MPH, Professor and Vice Chairman; Christine Austin, PhD, Associate Professor; and Paul Curtin, PhD, Associate Professor, all at the Department of Environmental Medicine and Public Health. They are co-founders of Linus Biotechnology, which aims to develop and commercialize a novel precision exposome sequencing platform for complex diseases. The company received Breakthrough Device designation from the U.S. Food and Drug Administration for StrandDx™-ASD, a diagnostic aid for autism spectrum disorder. The award recognizes a notable technology from the Mount Sinai Health System that represents a major breakthrough in research and a strong commercial partnership for advancement,

The Lifetime Achievement Award was given to Robert J. Desnick, MD, PhD, Chair Emeritus and Professor, Genetics and Genomic Sciences, whose research led to the development of Fabrazyme® and GIVLAARI®, drugs for treating lysosomal storage disease. He co-founded Amicus Therapeutics, a company that aims to develop and deliver medicines for rare metabolic conditions, including olipudase alfa.

Scott Friedman, MD, Dean for Therapeutic Discovery, served as host of the event.

The Mount Sinai Pitch Challenge Award was given to Tyree Williams, MEng, a biomedical engineering doctoral researcher at Rensselaer Polytechnic Institute and a visiting graduate student researcher at Sinai BioDesign.  He is the founder of Kratos Orthopedics, which is developing a novel mortar bone cement system to improve mechanical responses and post-operative care in patients who have undergone spinal surgeries. The award is the capstone event for Mount Sinai Innovation Partner’s Entrepreneurship Program, where finalists compete for a cash prize and pro-bono services to continue the development of health care solutions.

The Faculty Idea Prize was given to Sairam Geethanath, PhD, Assistant Professor, Diagnostic, Molecular and Interventional Radiology, and Shilpa R. Taufique, PhD, Assistant Professor, Psychiatry, for their work on substance use disorders, which affect brain health, especially in underserved populations, due to inequitable health care access. The award aims to support a collaborative, innovative, research idea by junior faculty that can potentially be translated into a marketable product through the development of therapeutics, devices, diagnostics, digital health applications, and/or data driven educational or community-based interventions.

The KiiLN Postdoctoral Entrepreneurship Award was given to Joon Ho Seo, PhD, a postdoctoral fellow, and SmartMazes, LLC. This project is focused on designing and manufacturing economical, modular, and modifiable rodent behavioral apparatuses that can serve as multiple mazes for the purpose of basic and translational neuroscience. The award is designed to highlight entrepreneurial endeavors of Mount Sinai postdoctoral fellows who co-found or lead companies by advancing their discoveries beyond the bench to create diagnostics, devices, and therapeutic products or by applying other solutions, in order to address unmet needs in life sciences.

The i3 Prism Award was given to Benjamin Rodriguez, a medical student, and Maddison Archer and Emelie Lassen, PhD, both postdoctoral fellows. The Mount Sinai i3 Prism technology commercialization fund aims to bring new health care solutions to patients and society by advancing technologies from women and Black, indigenous and people of color (BIPOC) inventors closer to the marketplace.

The i3 Genesis Award aims to translate Mount Sinai discoveries in various health care fields with clear potential for commercialization and defined technology or data gaps that can be addressed with funding. It was given to six teams for 2022 and five teams for 2021. The 2022 recipients are:

  • Daniela Sia, PhD, Anna Tocheva, PhD, Elliot Merritt, PhD, and Emily Bramel
  • Isabella Morgan, Joshua Bederson, MD, Mitch Baldwin, and Benjamin Rapoport, MD
  • Weijia Zhang, PhD, Stephen Ward, MD, Fasika Tedla, MD, Zhengzi Yi, MSc, and Caixia Xi, MSc
  • Yulia Landa, PsyD, MS, and Rachel Jespersen, MSW
  • Kara Bagot, MD, Angela Diaz, MD, and Anne Nucci, MD
  • Margaret Brandwein, MD, and Mark Urken, MD

The 2021 recipients are:

  • Alfred-Marc Iloreta, MD, Turner Baker, PhD, Alexis Bruhat, MEng, and Benjamin Rapoport, MD
  • Jonathan DePierro, PhD, Laurel Morris, PhD, James Murrough, MD, PhD, Dennis Charney, MD, and Adriana Feder, MD
  • Mark Rea, PhD, and Bridget Bradley
  • Evren Azeloglu, PhD, Eric Lima, PhD, Alan Benvenisty, MD, Kirk Campbell, MD, and Jacob Wright
  • Gautam Kamthan, MD, and Sean Ianchulev, MD

The winners who attended the event held in Davis Auditorium in the Leon and Norma Hess Center for Science and Medicine on the Icahn School of Medicine at Mount Sinai campus.

The Diversity Innovation Hub Innovator Prize was given to Tanvir Islam, founder and CEO of TYCA, who has been supporting the growth of local economies and accessibility of resources within communities.

The Diversity Innovation Hub Founders Award was given to Gil Addo, MBA, cofounder and CEO of RubiconMD, who has been transforming the delivery of digital health through making specialty consults more accessible to all populations.

The THRIVE Fellowship Award was given to these teams:

  • Spinovations: Tyree Williams, MEng, Ian Odland, BS, Eugene Hrabarchuck, BA, Zaara Irshad, MHA, and Janvi Patel, BA (mentor: Tanvir Choudhri, MD). Spinovations is working on developing a new spinal screwdriver for more patient-centered, minimally invasive surgeries.
  • ai: Faris Gulamali, BS (mentor: Neha Dangayach, MD). They are focusing on the problem of monitoring intracranial pressure.
  • Metaphor: Hyomin Seo, BEng, and Brian Soong, BA (mentors: Towfique Raj, PhD, John Doucette, PhD, and Emma Benn, DrPH). Metaphor is working on an AI-based project to detect early signs of Alzheimer’s disease in the speech patterns of non-English speakers.
  • SSI Detection: Jenny Chen, BS, Nasseef Quasim, MDc, Sushruta Iruvanti, BA, Vivian Utti, BS, and Vivek Prakash, MD. They are working on a system to detect early signs of surgical site infection following vascular surgery procedures, using a combination of clinical biomarkers and remote visualization/monitoring technologies.

The Trainee Innovation Idea Award was given to these individuals:

  • MD and MD/PhD Students: Randal A. Serafini, MS, Justin J. Frere, BS, Venetia Zachariou, PhD, and Benjamin R. TenOever, PhD, for developing a pre-clinical hamster model of long COVID for enhanced therapeutic development.
  • PhD Students: Pushkala Jayaraman, MS, Justin Kauffman, BS, and Girish Nadkarni, MD, MPH, for work on AI and electronic health records.
  • Postdoctoral Fellows: Wontack Han, PhD, Ryan Walker, PhD, Jeremiah Faith, PhD, and Maia Kayal, PhD, for identifying gut microbiome metagenomic features to develop a clinical prediction tool for inflammatory bowel disease.
  • House staff: Harry Anastos, MD, for utilizing the expression of immune checkpoint proteins in the peripheral blood of patients with elevated prostatic specific antigen (PSA) to predict the presence of prostate cancer.

The Mount Sinai Innovation Awards hosts are: The office of the Dean; Mount Sinai Innovation Partners; the Office of Faculty Development; the Office for Diversity and Inclusion; the Keystone for Incubating Innovation in Life Sciences Network (KiiLN); ConduITS-Institute for Translational Sciences; Sinai BioDesign; the Department of Medical Education; the Graduate School of Biomedical Sciences; the Graduate Medical Education Office; and the Office of Postdoctoral Affairs.

Using Insights From the Pandemic to Advance Research on Immunity in Down Syndrome

Louise Malle, MD/PhD candidate, and Dusan Bogunovic, PhD

In April 2020, as the COVID-19 pandemic spread through New York City, Louise Malle, an MD/PhD candidate at the Icahn School of Medicine at Mount Sinai, turned her focus to the disturbing statistics coming out on disease severity. She thought the data might inform her research to better understand immunity in people with Down syndrome.

Louise Malle, MD/PhD candidate

Ms. Malle, who works in the lab of Dusan Bogunovic, PhD,  surveyed thousands of patients diagnosed with COVID-19, and essentially found that individuals with the syndrome have about 10 times the likelihood of having extremely severe disease.

Dr. Bogunovic is Professor at the Marc and Jennifer Lipschultz Precision Immunology Institute, The Mindich Child Health and Development Institute, the Icahn Genomics Institute, and the departments of Oncological Sciences, Microbiology, Pediatrics, and Dermatology, as well as a Director of the Center for Inborn Errors of Immunity—all at Icahn Mount Sinai.

It turns out that Ms. Malle’s epidemiological observation added to a body of literature that suggests that severe viral disease is a problem in Down syndrome. The work led to new findings, published online on October 14, 2022 in the journal Immunity, showing that people with Down syndrome have less frequent but more severe viral infections.

“As we all were caught in the COVID-19 pandemic, Louise saw what was going on in the clinic in people with Down syndrome (based on her review of hospital records),” said Dr. Bogunovic, senior study author. “She saw what was going on in the world and then came to the lab, ultimately figuring out, at least in part, why this understudied and underserved population experiences more severe viral infections across the board.”

According to the study, this phenomenon is caused by increased expression of genes that sense an antiviral cytokine, type I interferon (IFN-I), as they are encoded on chromosome 21. Elevated sensing of IFN-I lead to hyperactivity of the immune response initially, but the body overcorrects for this to reduce inflammation, leading to increased vulnerability later in the viral attack.

Dusan Bogunovic, PhD

“Usually too much inflammation means autoimmune disease, and immune suppression usually means susceptibility to infections,” says Dr. Bogunovic. “What is unusual is that individuals with Down syndrome are both inflamed and immunosuppressed, a paradox of sorts. Here, we discovered how this is possible.”

Down syndrome is typically caused by triplication of chromosome 21. The syndrome affects multiple organ systems, causing a mixed clinical presentation that includes varying degrees of intellectual disability, developmental delays, congenital heart and gastrointestinal abnormalities, and Alzheimer’s disease in older individuals. It is universally present across racial, gender, or socioeconomic lines in approximately 1 in 800 live births, although there is considerable variation worldwide.

Recently, it has become clear that atypical antiviral responses are another important feature of Down syndrome. Increased rates of hospitalization of people with the genetic disorder have been documented for influenza A virus, respiratory syncytial virus, and severe acute respiratory syndrome due to coronavirus (SARS-CoV-2) infections, according to the researchers.

“We have a lot more to do to completely understand the complexities of the immune system in Down syndrome,” said Ms. Malle, first author of the study. “We have here, in part, explained the susceptibility to severe viral disease, but this is only the tip of the iceberg.”

Marla C. Dubinsky, MD, Receives 2022 Sherman Prize Recognizing Excellence in Inflammatory Bowel Disease

Marla C. Dubinsky, MD

Marla C. Dubinsky, MD, an internationally recognized leader in pediatric inflammatory bowel disease (IBD), was one of three national recipients of the 2022 Sherman Prize.

The award, which recognizes individuals for pioneering achievements that have transformed patient care and rewards outstanding achievements in Crohn’s Disease and Ulcerative Colitis, was announced September 21 by the Bruce and Cynthia Sherman Charitable Foundation.

Dr. Dubinsky is Professor of Pediatrics and Medicine (Gastroenterology) at the Icahn School of Medicine at Mount Sinai. She is also Chief of the Division of Pediatric Gastroenterology at the Mount Sinai Kravis Children’s Hospital and Co-Director of the Susan and Leonard Feinstein Inflammatory Bowel Disease Clinical Center at Mount Sinai.

In its announcement, the Foundation cited Dr. Dubinsky as “one of IBD’s preeminent game changers” and said she has been “giving hope to children and their parents for decades.” The Foundation added, “Dr. Dubinsky works on being a guiding figure for those coming up the ranks, teaching her mentees to tailor care to a patient’s needs and reinforcing the importance of empowering patients to better manage their IBD so they can live the life they want.”

Her work has included defining therapeutic dosing levels of medicines to optimize treatment in children; identifying some of the most predictive biomarkers for disease progression; and bringing intestinal ultrasound to the bedside. In addition, she is the co-founder of Trellus Health, a publicly traded digital health company based in London and New York that has a goal of improving care for people with chronic conditions. The other co-founder is Laurie Keefer, PhD, Professor of Psychology and Director for Psychobehavioral Research within the Division of Gastroenterology.

“I am both humbled and honored to be one of the 2022 Sherman Prize recipients,” said Dr. Dubinsky. “It is truly an honor to be recognized for your life’s passion and this award inspires me to keep pushing forward and continuing to impact the lives of patients with IBD.”

Uma Mahadevan, MD, Professor of Medicine, Director of the Colitis and Crohn’s Disease Center, and Director of the Advanced IBD Fellowship at the University of California San Francisco in San Francisco was also awarded the Sherman Prize.  Both Sherman Prize honorees receive a prize of $100,000.

Parambir S. Dulai, MD, Associate Professor of Medicine in the Division of Gastroenterology and Hepatology, Director of GI Clinical Trials and Precision Medicine, and Director of the Digestive Health Foundation BioRepository at Northwestern University in Evanston, Illinois, received the Sherman Emerging Leader Prize Honoree, which includes a $25,000 prize.

In Milestone Finding, ‘Polypill’ Reduces Cardiovascular Mortality by 33 Percent in Patients Treated After a Heart Attack

Valentin Fuster, MD, PhD, at the European Society of Cardiology Congress in Barcelona, Spain

In a milestone in cardiovascular medicine, a  three-drug medication known as a “polypill” was found effective in preventing adverse events such as heart attacks or stroke in people who have previously had a heart attack, reducing cardiovascular mortality by 33 percent in this patient population. These are findings from the SECURE trial led by Valentin Fuster, MD, PhD, Director of Mount Sinai Heart and Physician-in-Chief of The Mount Sinai Hospital.

The study results were announced on Friday, August 26, at the European Society of Cardiology Congress (ESC 2022) in Barcelona, Spain, and published in The New England Journal of Medicine.

“The results of the SECURE study show that for the first time that the polypill, which contains aspirin, ramipril, and atorvastatin, achieves clinically relevant reductions in the recurrent cardiovascular events among people who have recovered from a previous heart attack because of better adherence to this simplified approach with a simple polypill, rather than taking them separately as conventional,” says Dr. Fuster, General Director of the Spanish National Center for Cardiovascular Research (CNIC), which developed the polypill.

Patients recovering from a heart attack—also known as myocardial infarction—are prescribed specific treatments to prevent subsequent cardiovascular events. Standard therapy includes three different drugs: an antiplatelet agent (like aspirin); ramipril or a similar drug to control blood pressure; and a lipid-reducing drug, such as a statin. However, fewer than 50 percent of patients consistently adhere to their medication regimen.

“Although most patients initially adhere to treatment after an acute event such as an infarction, adherence drops off after the first few months. Our goal was to have an impact right from the start, and most of the patients in the study began taking a simple polypill in the first week after having a heart attack,” Dr. Fuster explains.

“Adherence to treatment after an acute myocardial infarction is essential for effective secondary prevention,” says José María Castellano, MD, study first author and Scientific Director of Fundación de Investigación HM Hospitales.

The concept of a polypill for cardiovascular disease prevention was proposed in 2003 and widely debated among experts, with some arguing that it could reduce heart disease at a population level and others arguing that patients could wrongly consider it as a substitute for healthy lifestyles. In 2007, the potential value of applying the polypill strategy in high-risk patients was recognized by the WHO and the World Heart Federation, and Dr. Fuster authored a call to action in Nature Clinical Practice Cardiovascular Medicine,  “A polypill for secondary prevention: time to move from intellectual debate to action.”

Scientists at the CNIC, in partnership with FERRER laboratories, developed a polypill and have conducted a range of studies over the intervening years. CNIC scientists first demonstrated that prescription of the CNIC polypill significantly improved treatment adherence among patients recovering after a myocardial infarction, in the FOCUS study, published in the Journal of the American College of Cardiology (JACC).

The CNIC team launched the SECURE study, an international randomized clinical trial, to determine whether the improved treatment adherence with the polypill translated into a reduction in cardiovascular events. The polypill analyzed in the study, commercialized under the name Trinomia, contains aspirin (100 mg), the angiotensin-converting enzyme inhibitor ramipril (2.5, 5, or 10 mg), and atorvastatin (20 or 40 mg).

SECURE included 2,499 patients from seven European countries (Spain, Italy, Germany, the Czech Republic, France, Poland, and Hungary) recovering after a heart attack. Study participants were randomly assigned to receive standard therapy or the CNIC polypill. The average age of the participants was 76 years, and 31 percent were women. The study population included 77.9 percent with hypertension, 57.4 percent with diabetes, and 51.3 percent with a history of smoking tobacco.

Researchers analyzed the incidence of four major cardiovascular events: death from cardiovascular causes, non-fatal myocardial infarction, non-fatal stroke, and need for emergency coronary revascularization (the restoration of blood flow through a blocked coronary artery). The study followed patients for an average of three years and produced conclusive results: patients taking the CNIC polypills had a 24 percent lower risk of these four events than patients taking the three separate drugs.

The standout finding of the study is the effect of the polypill on the key outcome of cardiovascular-related death, which showed a relative reduction of 33 percent, from 71 patients in the group receiving standard treatment to just 48 in the polypill group. Importantly, the study found that patients in the polypill group had a higher level of treatment adherence than those in the control group, thus confirming the findings of the earlier FOCUS study, and in part such good adherence appears to explain the benefits of the simple polypill.

“The SECURE study findings suggest that the polypill could become an integral element of strategies to prevent recurrent cardiovascular events in patients who have had a heart attack,” Dr. Fuster says. “By simplifying treatment and improving adherence, this approach has the potential to reduce the risk of recurrent cardiovascular disease and death on a global scale.”

Jennifer Chan, PhD, Receives Robin Chemers Neustein Postdoctoral Fellowship Award for Innovative Research

Jenneifer Chan, PhD, and Ian Maze, PhD

Jennifer Chan, PhD, whose work is vastly expanding knowledge about pregnancy, brain health, and stress, is the recipient of the 2022 Robin Chemers Neustein Postdoctoral Fellowship Award, established in 2010 to encourage and support female research scientists at the Icahn School of Medicine at Mount Sinai.

Recipients are senior postdoctoral scientists who intend to complete their training within two years, have demonstrated high-impact accomplishments in biomedical sciences, and exhibit the potential for an independent scientific career. Dr. Chan is the 23rd recipient of the award, created through a generous gift from Robin Chemers Neustein, JD, MBA, a former member of Mount Sinai’s Boards of Trustees.

Dr. Chan works in the laboratory of neurobiologist Ian S. Maze, PhD, in the Nash Family Department of Neuroscience. Dr. Maze, who was appointed as a Howard Hughes Medical Institute (HHMI) Investigator in 2021, is a Professor of Neuroscience, and Pharmacological Sciences, and the founding director of the Center for Neural Epigenome Engineering at Icahn Mount Sinai, the nation’s first center devoted exclusively to neuroepigenomic engineering.

Dr. Maze’s lab is focused on delineating the molecular and biochemical mechanisms of neuroepigenetic plasticity—changes in the underlying biochemical mechanisms that control whether genes are turned on or off within a given cell-type in the brain. This plasticity is important for allowing brain cells to appropriately respond to changing environments, which is critical for proper neurodevelopment—and which can cause disease when there is inappropriate tuning of gene expression.

Jennifer Chan, PhD

For example, aberrations in these processes can produce devastating neurological and psychiatric disorders, such as epilepsy, Parkinson’s disease, Alzheimer’s disease, substance use disorders, and major depressive disorders. These aberrations can occur during brain development or throughout life due to such factors as environmental toxins, physical trauma, chronic stress, and exposure to drugs of abuse.

The Maze lab—through the integration of technologically innovative and sophisticated new methodologies in chemical biology, proteomics, protein biochemistry/engineering, and structural biology—is advancing the understanding of these processes and working toward the development of targeted neurotherapeutics to treat these conditions.

“Using the most advanced epigenomic, metabolomic, and gene editing approaches in my lab, Dr. Chan is revolutionizing our understanding as to how environmental stimuli, both adaptive and maladaptive, impact epigenetic regulation of gene expression in the maternal brain to alter neural circuitry and behavior,” says Dr. Maze. “Delineating the mechanisms through which the experience of pregnancy imparts long-lasting changes in molecular and physiological properties of the brain promises to greatly aid in our understanding of how such a profound lifetime experience—shared by so many—contributes to brain health. Dr. Chan is an exceptionally talented and innovative young scientist, and I am absolutely thrilled by such prestigious recognition of her paradigm-shifting work.”

Dr. Chan joined the lab in 2018. Her research interests focus on understanding how biological systems outside the nervous system interact with stress to impact the brain during windows of neuroplasticity—times of active brain organization that are particularly susceptible to environmental and physiological challenges. Specifically, her work examines periods of early brain development and female reproductive experiences in rodents, including the long-term impact of pregnancy and postpartum experiences on the brain, and how stress disrupts normal organizational processes during these important windows.

“The experience of being pregnant dramatically changes both the body and brain,” says Dr. Chan. “While studies in patient populations and animal models have shown that these changes can persist long after giving birth, we still don’t understand the molecular mechanisms that control these processes.”

In particular, Dr. Chan investigates the contribution of epigenetic mechanisms underlying these experiences by combining molecular, biochemical, genome editing, and behavioral approaches in her postdoctoral research.

“The fundamental understanding of what reproductive experience does to the brain long-term has not been well studied,” says Dr. Chan. “My work shows that stress during these periods has a significant effect on the maternal rodent brain. I hope that through my research we can learn more about how pregnancy and postpartum experiences contribute to brain health and also emphasize that overall we need to do a better job of reducing stress during these critical windows—such as encouraging parental leave and making sure people have the financial, social, and health-related resources needed to support themselves.”

Says Dr. Chan: “I am incredibly honored to be the recipient of this year’s Robin Chemers Neustein Postdoctoral Fellowship Award. The direction for this research project was sparked by personal interest, and I am extremely encouraged by Dr. Maze’s support and that the selection committee also believes in these important questions.”

Epigenetic Disease in the HIV+ Brain: An Innovative Longitudinal Study Method

Schahram Akbarian, MD, PhD, is a recipient of the prestigious NIH Director’s Pioneer Award (DP1), a five-year award that supports creative scientists who are pursuing pioneering approaches to major scientific challenges.

Most clinical studies benefit from taking repeated measurements over weeks, months, years. Researchers studying epigenetic disease processes in the brain don’t have that luxury. “You harvest the brain, and you only get one time point,” says Schahram Akbarian, MD, PhD, Professor of Psychiatry and Neuroscience and Chief of the Division of Psychiatric Epigenomics at the Icahn School of Medicine at Mount Sinai. “In this field, most studies are cross-sectional.”

Now, Dr. Akbarian is developing a novel method — longitudinal epigenetic profiling — that allows him to study epigenetic changes in the brain over time. The innovative idea has earned him the National Institutes of Health (NIH) Director’s Pioneer Award (DP1), a five-year award that supports creative scientists who are pursuing pioneering approaches to major scientific challenges. The project, Single Chromatin Fiber Sequencing and Longitudinal Epigenomic Profiling in HIV+ Brain Cells Exposed to Narcotic and Stimulant, will use the new technique to explore dynamic changes in HIV-infected cells in the brain.

“In the last 10 or 15 years, research on the epigenetics of disease has taken off, thanks to modern sequencing technologies that allow us to study genome organization in a relatively cost-efficient way,” Dr. Akbarian says. “There’s a big need for more research on HIV in the brain, and I hope to morph this new idea into something specific and exciting for HIV research.”

HIV and the Brain
At the Akbarian Laboratory of Epigenetic Regulation of the Human Brain, much of the research has focused on psychiatric diseases such as schizophrenia and depression. Several years ago, Dr. Akbarian began to extend his research to HIV, in part because so many critical questions about the virus’ impact on the brain remain unanswered. More than 38 million people worldwide are living with HIV, and 1.5 million were newly infected in 2021, according to the World Health Organization. Some 75 percent of them have received antiretroviral therapy — yet for many, brain-related symptoms remain.

HIV can infect the microglia, the innate immune cells of the central nervous system, and can also cause inflammation. People with HIV can experience a range of symptoms, including headaches, forgetfulness, mood disorders, and behavioral changes. “People are still having neurological symptoms from HIV infection, even if they take antiretroviral drugs. The question is, why? What’s causing damage in the brain?” Dr. Akbarian says.

He hopes that his longitudinal epigenetic profiling method will begin to answer that question. The technique involves differentiating pluripotent human stem cells into microglia, then introducing those microglia into the brains of mice. Using epigenomic tagging of single chromatin fibers, he and his colleagues can explore dynamic changes of epigenomic dysregulation of the cells over time. “We can switch it on and off, then months later, isolate the immune cells and see how genome organization looked four months ago,” he says. “It’s a bit like a telescope that allows astronomers to look back in time in the universe. This “telescope” allows us to look back in time in the cell.”

In this study, he is focusing on HIV-infected cells that have also been exposed to opioids and stimulants. Drug abuse is a major risk factor for HIV, because drug use increases risky behaviors that can make a person more susceptible to infection. “A brain that’s exposed to drugs of abuse and to HIV is probably more unhealthy than brains from a person with HIV but no history of drug use,” Dr. Akbarian says. “We want to see if exposure to drugs of abuse makes the brains more vulnerable to infection with HIV, or to the neurological defects that HIV can trigger.”

A third goal of the project, he says, is to contribute to efforts to rid the body of HIV for good. HIV inserts itself into the genome, an ingenious trick that allows it to hide from the immune system and makes it devilishly complicated to treat. “The big question is, does HIV do this in the brain, and if so, how can we flush it out?” Dr. Akbarian says. “If we can rid the body of HIV in every cell, people can stop taking antiretroviral medication”— and effectively be cured of HIV.

Advancing Psychiatric Epigenetics Through Collaboration
The project is in its early stages, but if this longitudinal method proves effective, Dr. Akbarian hopes it could lead to new innovations for studying other diseases of the brain. Many psychiatric conditions, such as schizophrenia and depression, emerge in young adulthood. However, many researchers suspect the disease process begins much earlier, possibly even prenatally. “There’s lots of indirect evidence, but we can’t look back in time. If we study the brain of a person with schizophrenia, we have no idea what happened in their brain earlier in life,” he says. Someday, this novel longitudinal technique may uncover some important clues.

First, though, he’s applying the method to the intertwined problems of HIV and drug use. Though Dr. Akbarian’s name is on the Pioneer Award supporting the study, it’s a project he says he could not have done without support from his colleagues at Mount Sinai. “I’m a newcomer to the field of HIV. I wouldn’t be able to do this without the exceptionally collaborative atmosphere among my colleagues at Mount Sinai, including Benjamin Chen, MD, PhD, Talia Swartz, MD, PhD, and Susan Morgello, MD, who are doing experimental HIV research and were willing to help me learn,” he says. “It’s ironic that this award is in my name, because the success of this project depends so much on teamwork with these HIV researchers, as well as stem cell scientists including Samuele Marro, PhD.”

The collaborative culture at Mount Sinai makes this kind of innovation possible, he adds. “Mount Sinai has precisely the right mixture of top-notch basic neuroscience, top-notch clinical neuroscience, and a very active hospital setting,” he says. “Together they give very fertile soil to do productive research in the fields of neurology and psychiatry.”

 

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