Research we fund

The microbiome is increasingly recognized as contributing to chronic graft-versus-host disease (cGVHD). I hypothesize that microbial antigens drive the devastating complication of bronchiolitis obliterans syndrome (BOS). To determine if such antigen targets are at the heart of BOS pathology, I will integrate spatial transcriptomic approaches, immunopeptidome analysis, and direct antigen specificity testing of TCRs from biospecimens collected from preclinical models and patient biospecimens.

MLL1/KMT2A rearranged leukemias are the most common blood cancer occurring in children characterized by dismal prognosis. Given the importance of fusion proteins in driving the disease, I will determine factors affecting the fusion protein stability through a CRISPR/Cas9 screening approach in an innovative model system where the MLL fusions are endogenously tagged with a fluorescent protein. This will facilitate development of molecular glue degraders specifically targeting the MLL fusions.

GATA2 deficiency is an inherited pediatric syndrome with a high rate of progression to myeloid malignancy, the mechanisms of which remain largely undefined. Here, we will use our recently generated mouse model, Gata2R396Q, to determine the effects of GATA2 deficiency on hematopoietic function and identify novel drivers of myeloid malignancy via focused CRISPR screens. Our work will provide further insight into the mechanisms driving leukemic progression of this syndrome.

The development of acute myeloid leukemia (AML) is preceded by a “preleukemic” phase in which mutated hematopoietic stem cells expand due to a fitness advantage. Our work uses prospective models and analysis of patient samples to study how the duration of preleukemia and how the preleukemic clonal burden affect progression to AML. Results of our studies will shed new light on AML pathogenesis and help guide clinical management of preleukemic conditions such as clonal hematopoiesis.

Our research program’s goal is to identify therapeutically actionable pathways in pre-leukemic and leukemic stem cells in myeloid malignancies. We specifically dissect molecular circuits governing stem cell self-renewal and differentiation, how these change during aging, and contribute to leukemic stem cell evolution and maintenance. Accomplishing this work will enable the rational design of curative intervention and perhaps even prevention strategies for patients with myeloid malignancies.

The goal of this project is to investigate the role of the epigenetic regulator Eleven-Nineteen-Leukemia (ENL) and its cancer mutations in acute myeloid leukemia (AML). Our studies leverage the expertise in chromatin biology, functional genomics, and AML modeling, as well as unique chemical compounds and mouse models. Results from this project will provide novel biological insights into our understanding of AML pathogenesis and facilitate the development of novel epigenetic therapies.

My lab is focused on understanding the pathogenic interplay between oncogenic mutations, chronic inflammation and aberrant metabolism as a driver of the evolutionary processes that culminate in lethal myeloid malignancies. We leverage mouse models and human patient samples to establish modalities for targeting this interplay throughout disease pathogenesis. My long-term goal is to improve patient outcomes by establishing therapies that prevent and/or delay evolution to acute leukemia.

Our research seeks to understand how ordered acquisition of oncogenic mutations transforms human hematopoietic stem cells into myeloid malignancies. We leverage patient-derived induced pluripotent stem cells and primary normal and malignant stem cells to study how mutation cooperation drives leukemic progression in vitro and in vivo. Our long-term goal is to identify disease mechanisms and develop targeted therapies to eradicate malignant stem cells.

The focus of my research is to understand the causes and early-life origins of acute lymphoblastic leukemia (ALL). We use a two-pronged approach: 1) conducting epidemiological studies of ALL in susceptible populations to understand genetic predisposition, and 2) investigating the in utero origins of ALL across subtypes. Our goals are to identify children at the highest risk of developing ALL through genetic screening and to lay the groundwork for precision prevention strategies.

Pediatric acute lymphoblastic leukemia (ALL) that is resistant to standard therapy is a challenge that has been partially overcome by T-cell therapy, yet relapse still occurs in up to 50%. We are conducting two clinical trials that test a next-generation T-cell therapy and the first incorporation of T-cell therapy into initial therapy. These trials will inform future development and the optimal place for this therapy with the goal of improving cure rates for children with very high risk ALL.