Research we fund

University of Colorado Denver, Anschutz Medical Campus

Our SCOR team seeks to fundamentally reinvent the ways in which physicians diagnose and treat acute myeloid leukemia (AML). For over 40 years, AML has been treated with a combination of chemotherapy drugs that have major side effects and usually only provide short-term benefit to patients. Indeed, survival rates for most AML patients are dismal, and quality of life for these patients is poor. Consequently, improved strategies for AML are a huge priority for the field. We believe that the lack of progress against AML is due to a single, fundamental failure of existing therapies: While current therapies attack leukemia cells, they fail to act against the real root of the problem, namely leukemia stem cells. It’s like mowing over weeds in a lawn. If the roots are not removed, the weed (disease) will grow back. And like eradicating the roots of weeds, AML stem cells have proved difficult to treat. This is primarily due to the fact that AML stem cells within a given patient can exist in multiple forms, each of which has a differing response to therapy. In other words, while various drugs can often kill some AML stem cells in a patient, completely eradicating all the AML stem cells can be very difficult.

Program Name(s)

Specialized Center of Research Program

Dana-Farber Cancer Institute

NPM1-mutated leukemia is the most common AML in adult and characterized by upregulations of HOXA/B genes and MEIS1. Given the importance of oncogenic transcriptional program, I will determine regulatory molecules that cooperate with mutant NPM1 on chromatin by combining CRISPR/Cas9 screening approach in an innovative model system of endogenous transcription reporters with proteomics approach. This will facilitate identification of novel therapeutic targets specific for NPM1-mutated AML.

Program Name(s)

Career Development Program

University of Miami

We have a highly collaborative team of investigators, whose goal is to develop novel therapeutic approaches to MDS and AML as well as to improve current therapies for these diseases based on a detailed understanding of how epigenetic dysregulation contributes to myeloid neoplasia. We are focusing on the clonal MDS or AML cell and on the bone marrow microenvironment (BMME), including immune cells that could contribute to or limit the progression of these disorders. Our Center brings together chemists, biochemists, cellular biologists and molecular biologists, who are supported by three core facilities, including an Administrative core, an Epigenomics core and a Bioinformatics and Big data sharing core. To advance our Center’s ability to implement personalized therapies for patients with myeloid malignancies, we have generated and will generate novel reagents, and utilize state-of-the-art in vitro and in vivo assays to identify key modulators of drug sensitivity or resistance. We will focus on so-called “epigenetic-focused” therapy, realizing that many of the enzymes that regulate epigenetic control of cell fate, influence signal transduction pathways, RNA splicing events, and the activity of key cellular proteins, such as BCL2 family members and p53.The genetic mutations that underlie myeloid malignancies have been identified, and we and others have generated mouse models that have pinpointed the role that these genes and their mutations play in normal and malignant hematopoiesis. Our institutions have biospecimen banks with large numbers of MDS and AML samples, and active clinical trial portfolios, that have led to FDA approval of a variety of novel agents, including IDH1/2 inhibitors. The next step in delineating the pathogenesis and Achilles’ heel of these disorders is to better define the role of epigenetic abnormalities play in disease initiation and progression, and to define how targeting LSD1, the CoREST complex, PRMT5 and inflammation signals may advance current treatment strategies (e.g. VEN/AZA), and to enhance the activity of promising agents currently under investigation (menin inhibitors, etc.). Identifying the dependencies and vulnerabilities created by genetic or epigenetic abnormalities will allow us to more rationally advance the treatment of myeloid malignancies, a disease focus where headway is beginning to be made.Defining the crosstalk between different epigenetic regulators, and how they affect cellular and extracellular processes other than histone proteins, may identify unique sensitivities that can increase the therapeutic index for novel, epigenetic-focused treatments, and identify potentially synthetic-lethal combination therapies. The individual projects in our Center, cover three key aspects of gene regulation and chromatin structure. Project 1 is focused on the LSD1 demethylase, which plays a role in myeloid differentiation, Project 2 is focused on the role of PRMT5 in regulating LSC self-renewal, proliferation and survival, and the expression of potential immunogens, and Project 3 is focused on the interaction between the BMME and the epigenome in mediating sensitivity to epigenetic agents in CMML and MDS. Thus, our center will span the continuum from basic mechanisms of disease initiation and progression, to clinical issues related to therapeutic sensitivity vs. resistance.Ramin Shiekhattar first discovered that MAO inhibitor antidepressants such as tranylcypromine (TCP), can inhibit the LSD1 demethylase. This finding led to a recently published clinical trial of AZA + TCP in MDS and AML patients led by Justin Watts, and to a new clinical program, that will be continued at Sylvester and MSKCC. They will work with Phil Cole, who founded a biotech company in 2011 that is synthesizing novel epigenetic-focused therapies, to examine how targeting the CoREST complex can synergize with clinically available MDS/ AML cells differentiation- or apoptosis-inducing agents. Several lead compounds are now being tested in the Shiekhattar and Nimer labs.Omar Abdel-Wahab and Stephen Nimer have discovered several oncogenic functions of PRMT5, an arginine methyltransferase targeted by several small molecule inhibitors that are now in clinical trials for MDS or AML patients at Sylvester and MSKCC. They will work with Luisa Cimmino to exploit their work implicating PRMT5 in regulating homologous recombination, RNA splicing and p53 function. Maria Figueroa has extensively studied predictors of the clinical response to DNA hypomethylating agents (HMA) and has identified critical mediators of HMA resistance originating in the BMME. She will work with Ross Levine, a leader in delineating the molecular pathogenesis of hematologic malignancies, to evaluate how signals from the BMME impact the responsiveness of MDS and CMML cells to HMA combinations as well as how to overcome primary resistance to HMA by targeting key signals in the niche.Three Cores will enable the efficient completion of our collaborative studies. Core A, the Administrative Core, will be housed at UM; it will provide infrastructure support, to optimize interactions between the various labs represented here, handle all financial and reporting aspects of the grant, assist with the SCOR site visit and the annual meeting of the Center, and maintain regulatory compliance for the Center (e.g. assuring access to bio-specimens, handling IRB and IACUC approvals, etc.). Both UM and MSKCC continue to collect MDS/AML/MPN bio-specimens. Core B, the Epigenomics Core, led by Sion Williams and Lluis Morey, will perform various NGS-based assays to assess genome-wide changes in gene expression, DNA methylation, and histone post-translational modifications. Core C, the Bioinformatics and Big Data Core, led by Stephan Schürer, will provide bioinformatics support and ensure complete and efficient sharing of data for all three projects in the SCOR.

Program Name(s)

Specialized Center of Research Program

Washington University in St. Louis

New treatments for AML and MDS are urgently needed. We have developed and performed preliminary testing of a novel, patent-protected, trispecific NK cell engager named KT1 which targets AML blasts and leukemia stem cells (LSCs) expressing CD33 and CD123 for elimination by effector cells that express CD16a/b. We plan to test the ability of KT1 to release cytokines and facilitate killing of CD33- and/or CD123-expressing targets by different types of CD16a/b-positive effector cell populations including resting natural killer (NK) cells, cytokine-induced memory-like (ML) NK cells, gamma/delta T cells, and macrophages both in vitro and in leukemic mice. We anticipate that a future treatment of AML and/or MDS with KT1 combined with a donor leukocyte transfer of allogeneic NK, ML NK, or gamma/delta T cells will have excellent therapeutic efficacy and a far better safety profile than many currently studied immunotherapies being tested in patients with AML or MDS.

Program Name(s)

Translational Research Program

Duke University Medical Center

Altered B cell homeostasis plays a key role in the development of chronic graft-vs-host-disease (cGVHD) after hematopoietic stem cell transplantation (HCT). We hypothesize that the DNA sensor AIM2 plays a critical role in the fate of BCR-activated B cells after HCT. We will utilize novel mouse models to investigate AIM2-BCR modulation with clear translational implications in autoreactivity perpetuating cGVHD as well as functional humoral deficiency and vaccine hyporesponsiveness after HCT.

Program Name(s)

Career Development Program

NYU Grossman School of Medicine

While many patients with diffuse large B cell lymphoma (DLBCL) are cured with initial treatment, some patients relapse even after multiple therapies, and their outcomes are poor; we believe that the quality of the patient’s T cell memory plays a critical role in determining how they respond to treatment. To investigate, we will analyze the response pattern of circulating immune cells in cured and relapsed DLBCL patients, as well as the immune signals generated by the tumors, and create CAR T cells from the T cells with anti-tumor properties found in cured patients. We will evaluate the ability of these CAR T cells to fight lymphoma; if successful, our research can rapidly be translated into new immune therapies for patients with high risk or relapsed DLBCL.

Program Name(s)

Translational Research Program

Nodular lymphocyte-predominant Hodgkin lymphoma is recognized as a disease entity in a spectrum of related diseases, including T-cell rich B-cell lymphoma. Although treatments are generally effective, a subset of patients suffers from lymphoma progression and aggressive disease transformations. Here, we propose to analyze clonal evolution of tumor cells and describe the spatial architecture of tissues with the goal to improve molecular classification and develop novel therapeutic approaches.

Program Name(s)

Career Development Program

Yale

I want to understand how the t(1;22) translocation that involves a member of the m6A writer complex drives acute megakaryoblastic leukemia (AMKL). To identify culprit genes and pathways I will use multi-omics, including RNA, eCLIP, and TimeLapse Seq and proteomics. I will dissect the RBM15-MKL specific effects of a novel METTL3 inhibitor in primary murine and human AMKL in vitro and in vivo. My ultimate goal is to cure this rare infant leukemia by harnessing METTL3 inhibition.

Program Name(s)

Career Development Program

Weill Cornell Medicine

To survive and proliferate lymphoma cells must co-opt normal cells residing the tumor microenvironment. This process results in the suppression of the activity of immune cells that otherwise will attack cancer cells. In this project we will develop a novel oral treatment that by acting on the microenvironment will restore lymphoma immunity and increase the activity of immunotherapy.

Program Name(s)

Translational Research Program

Medical College of Wisconsin

Immunotherapy using chimeric antigen receptor (CAR) T cells, or CARTs for short, holds great promise for improving outcomes and survival of patients with relapsed and/or refractory multiple myeloma (RRMM). Next-generation “armored” CARTs that can overcome transforming growth factor beta (TGF-beta) dependent immune suppression in the tumor microenvironment may provide deeper and more durable disease control than the TGF-beta sensitive CART products currently in clinical use.

Program Name(s)

Translational Research Program

Albert Einstein College of Medicine

Leukemia stem cells (LSCs) are highly heterogeneous populations and key contributors to AML progression. Here, I aim to employ heparan sulfate (HS) glycotyping to resolve LSC heterogeneity. Using complementary genetic and antibody-based approaches, I will delineate the functional roles of HS pathway during AML progression. The newer insights provided by these studies could potentially uncover novel LSC therapies and facilitate diverse training for me to become an independent leukemia researcher.

Program Name(s)

Career Development Program

The George Washington University

Telehealth could improve access for Medicaid patients with a blood cancer who experience barriers to specialty care, but not all specialists offer it. Using Medicaid data, this study will provide novel information on whether blood cancer specialists are continuing to use telehealth following the COVID-19 pandemic when telehealth use increased dramatically. This study will also examine if telehealth helps address inequities in access to specialists, including for racial/ethnic minoritized groups and those living in rural areas.

Program Name(s)

Equity in Access