Research we fund

The goal of this SCOR project is to identify and eradicate the root cause of acute myeloid leukemia, the so-called leukemia stem cell (LSC). In the previous cycle of this SCOR grant, we developed two unique strategies, each of which efficiently eradicates LSCs in the laboratory. Going forward, we will expand our scientific efforts to further improve these approaches and also conduct clinical trials to determine whether our approaches to killing LSCs will benefit AML patients.

Overactivation of the inflammasome is seen in CMML and leads to worsening of this condition. We will explore the potential of a new inflammasome inhibitor drug, HT-6184, in CMML patient samples and in animal models. Our preliminary results show that this drug can decrease inflammation and improve red cell development in CMML models. The new drug is approved for clinical trial use and our work will potentially lead to its use in clinical investigations in CMML.

Chronic myelomonocytic leukemia (CMML) is a rare but poorly understood blood cancer often presenting with crippling inflammatory symptoms that frequently evolves into acute leukemia. In an ongoing clinical trial, we have compelling molecular and clinical data that this disease responds effectively to blockade of GM-CSF with lenzulimab, a well-tolerated and safe antibody, in combination with azacitidine. Here, we propose an integrated research program to investigate targeting of the GM-CSF pathway in high risk CMML using our carefully matched patient samples, proprietary GM-CSF tools, and humanized in vivo CMML models.

This project will significantly advance the treatment and prevention of CNS lymphomas in two key areas. One, we will further develop and validate candidate genomic biomarkers that identify high risk disease and that are useful in risk stratification in future clinical investigations in primary CNS lymphoma. Two, we will evaluate novel pharmacologic interventions that we hypothesize will: a) potentiate both the anti-lymphoma immune response, including agonists of the toll like receptor 7 and 8 pathway, as well as the combination of the anti-CD19 monoclonal antibody tafasitamab plus lenalidomide; and b) antagonize the NFkB pathway, via the orally-administered BTK degrader, Nx-5948, that we have demonstrated to be active in preclinical models using patient-derived CNS lymphomas.

A major limitation of immunotherapy approaches for AML has been the lack of known targetable cell surface antigens specific to AML cells. This project characterizes the pathologic and biologic effects of a novel cell surface antigen complex uniquely present on AML cells but not normal hematopoietic precursors, known as the U5 snRNP complex. Furthermore, we will interrogates U5 snRNP complex components as novel AML-associated antigens and CAR T cells targets for AML treatment.

p>SIRT5 is a master regulator of central energy metabolism. The survival and growth of Acute Myeloid Leukemia (AML) cells depend on SIRT5. I will employ genetic SIRT5 disruption and small molecule inhibitors to target SIRT5 in Acute Lymphoblastic Leukemia (ALL) cells and primary samples. This study aims to 1) determine the effects of SIRT5 inhibition on ALL in vitro and in vivo, and 2) identify SIRT5-regulated pathways and mechanisms underlying SIRT5 dependency in T-ALL.

AML risk stratification established by previous studies do not reflect survival outcomes observed in Black patients. Exome sequencing of 100 Black AML patients revealed the novel variants previously not affiliated with AML, including PHIP. Using multiomic patient sample captures and GEMMs, we will functionalize variants in PHIP and assess if they drive leukemogenesis and/or therapy resistance. The overall goal of this work is to implement inclusive genetic assessment tools for AML diagnosis.

Myelodysplastic neoplasms are malignant disorders driven by expansion of diseased hematopoietic stem cells and progression to leukemia. Our investigations have identified the important role of the transporter of amino acid glutamine SLC38A1 in sustaining metabolic demands of rapidly growing malignant stem cells. The goal of this project is to genetically target this transporter to understand its role on tumorigenesis and progression; and to develop SLC38A1 inhibitors as novel therapeutic tools.

We have observed that non-glycosylated CST6 proteins suppress osteoclast differentiation and function without causing immunosuppression. We aim to determine whether BCMA-CAR-T cells which are engineered to secret CST6 proteins kill myeloma cells and suppress bone lytic lesions without immune suppressive effects in myeloma. Our ultimate goal is to develop a CAR-T-cell based immune therapy to prevent bone loss and disease progression in myeloma patients.

TP53-Y220C is a recurrent hotspot TP53 mutation observed predominantly in AML and MDS among hematological malignancies. This study aims to investigate the mechanism of action and therapeutic activity of PC14586, a compound designed to bind p53-Y220C protein and stabilize it in the wild-type conformation and to develop mechanism-based combinations that improve its efficacy in TP53-Y220C mutant AML.