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Aberrant LZTR1 and RIT1 signaling as a driver of clonal hematopoietic disorders

Our research focuses on a novel mechanism of RAS protein regulation via the protein LZTR1, which is altered in leukemia and hinders the effectiveness of leukemia therapies. We will utilize mouse models and functional genomic studies to uncover how altered RAS degradation drives leukemia and identify novel drug targets. This effort will help us identify the clinical impact of alterations in this novel RAS pathway in patients and potential means to improve leukemia treatment.

Lymphoma diagnosis, survival rate by age, prognosis, and treatment

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LLS ANSWERS 10 QUESTIONS ABOUT COVID-19 VACCINES

Investigating the impact of hotspot mutations in a chromatin reader on leukemogenesis

The goal of this proposal is to investigate the consequence of the chromatin reader eleven-nineteen-leukemia (ENL) gain-of-function mutations in the pathogenesis of leukemia. Our studies leverage the expertise in the molecular and chromatin biology of chromatin reader in leukemia utilizing mouse model, high resolution image, epigenomic and transcriptomic approaches. Our goal is to understand how chromatin reader contributes to cancer development, progression, and therapeutic outcome.

Understanding and Overcoming Mechanisms of Immune Evasion after Allogeneic Transplant

Outcomes for patients with acute myelogenous leukemia who relapse after transplantation are dismal. This SCOR brings together an international group of collaborators with deep expertise in genomics, epigenetics, antigen presentation, and immune-regulation. They will focus on mechanisms of immune evasion by leukemia cells, identifying effective T cell responses to those evasive processes, and providing critical insights into the optimal approaches to model new and promising targets for immunotherapy with a goal of eliminating leukemia recurrence.  

Mechanisms of Pathogenesis by MYB Fusions in Blastic Plasmacytoid Dendritic Cell Neoplasm

The transcription factor MYB has long been associated with leukemia, but how it contributes to disease is poorly understood. Fusions of MYB to other proteins, causing MYB activation, are found in patients with Blastic Plasmacytoid Dendritic Cell Neoplasm (BPDCN), but rare in other leukemias. I am using recently developed techniques to gain insight into how MYB fusions cause BPDCN. This will enable both new treatments for BPDCN and better understanding of the role of MYB in other leukemias.

How the ACA saved me and other young cancer patients

Peer-to-Peer Support

Patti Robinson Kaufmann First Connection® Program

If you or a family member has been diagnosed with a blood cancer, you may find it helpful to speak with someone who has gone through a similar experience and learned how to manage the same disease you're trying to cope with each day. The Patti Robinson Kaufmann First Connection® Program is a free service of The Leukemia & Lymphoma Society (LLS) that introduces patients and their loved ones to a trained peer volunteer who has gone through a similar experience.

Understanding How Hematopoietic Developmental State Determines Oncogenic KMT2A Fusion Formation and Leukemic Potential

My goal is to understand how cancer-associated gene fusions arise and cause disease. Specifically, I am studying how oncogenic fusions involving the gene KMT2A arise in different hematopoietic cell-types and how developmental context drives the development of leukemia. My long-term goals are to leverage an increased fundamental understanding of leukemogenesis provided by this research to improve treatment and lengthen lifespan for patients with KMT2A fusion-driven leukemias.

Modeling LSC heterogeneity at unprecedented resolution in AML

Our goal is to perform high-resolution molecular characterization of human leukemia stem cells (LSCs). We have developed an integrated set of single-cell techniques that will assess transcriptional, genomic, and phenotypic features of primary LSC populations obtained from patients undergoing varying forms of treatment. We expect to create a molecular atlas of primary LSCs that will provide the leukemia research community with a powerful resource for the development of improved therapies.

NK cell immunotherapy to reduce relapse after haploidentical transplant for high-risk pediatric AML

Leukemia recurrence remains the most common type of treatment failure after allogeneic hematopoietic cell transplant for children and young adults with high-risk acute myelogenous leukemia (AML), occurring in 40-50% of patients. Novel treatment strategies are needed to attain durable remissions and provide long-term cure. We have developed a novel memory-like (ML) NK cell immunotherapy that has demonstrated potent activity against AML in preclinical and early clinical studies.

Pan-heme CAR: Anti-CD38 CAR T cells for myeloid, lymphoid and plasma cell malignancies

Our SCOR team has a razor-sharp focus on an exciting new treatment modality for blood cancers: chimeric antigen receptor (CAR) T cells. T cells can be trained to target cancer cells by genetic modification. In fact, previous support from the Leukemia & Lymphoma Society allowed us to successfully develop CAR T cells targeted to CD19, a pan-B cell marker.

Defining PIK3R5-related PI3K gamma dependency as a novel therapeutic target in blood cancers including BPDCN

Blastic plasmacytoid dendritic cell neoplasm (BPDCN) is an aggressive blood cancer without adequate treatment. In a genome-wide CRISPR interference screen, BPDCN was highly dependent on the PI3Kγ pathway and specifically the PIK3R5 adaptor subunit. A subset of leukemias may share this vulnerability. We will interrogate the mechanism of this unique dependency and integrate PIK3R5/PI3Kγ targeting with leukemia therapy. Our goal is to provide novel treatments for PIK3R5-dependent malignancies.

Rational therapeutic targeting of oncogenic immune signaling states in myeloid malignancies

Dr. Starczynowski is investigating the role and potential benefit of therapeutic targeting of a protein called UBE2N in acute myeloid leukemia (AML).

A Starting Place to Prioritize Your Mental Health

Coping with a blood cancer diagnosis and the whirlwind of experiences that follows can be physically, mentally, and emotionally draining for everyone impacted by it. 

Whether you're a patient or caregiver, you begin to realize your life will never be the same. 

Combined targeting of ATR and replicative stress in TP53-mutated AML

This research will test a promising new drug combination in acute myeloid leukemia (AML) carrying TP53 gene mutations, which is resistant to chemotherapy and has a median survival of less than 5 months. Our preliminary data show that TP53-mutated AML is selectively sensitive to the combination of an ATR inhibitor and decitabine. We will confirm activity of this novel drug combination using mouse models of leukemia and human AML samples and explore mechanisms of responsiveness.

Therapeutic targeting of AML stem cells 2023

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.

Discovery of Aging-Driven Mechanisms Causing Clonal Hematopoiesis (CH) and its Progression to Hematological Malignancy

My research focuses on why and how risk of acute myeloid leukemia (AML) increases with aging. Studying naturally aged mouse models in combination with mice engineered to express mutations commonly found in human blood stem cells with aging, we are investigating whether certain inflammatory factors that increase during aging increase the risk of leukemia. My goal is to identify biomarkers to assess risk of AML development in aging individuals and define new therapeutic targets to prevent AML.

TCR-like CARs targeting GvL mHAgs for the treatment of post-transplant AML relapse

AML recurrence is a devastating event after allo-HCT. I hypothesize that it could be counteracted through targeting of leukemia-restricted mHAgs via TCR-like CARs. I will identify scFVs recognizing mHAg:HLA complexes using a cell-free nanobody screening platform, and test the anti-leukemia activity and safety of CAR-Ts bearing such scFVs in vitro and in vivo. Through this approach, I will build a library of CAR constructs able to provide population-scale coverage for at-risk allo-HCT patients.

Memory-like natural killer cells and venetoclax to eradicate measurable residual disease in AML

This proposal is to conduct a phase I (early phase) clinical trial to test whether the combination of the approved targeted therapy venetoclax with memory-like Natural Killer (NK) cells is safe and active in patients with acute myeloid leukemia (AML). Based on laboratory research at Dana-Farber Cancer Institute, we believe that the addition of memory-like NK cells obtained from an haploidentical (‘half matched’) donor will be able to eradicate residual leukemia cells left over after prior venetoclax treatment and hence prevent a future relapse of the disease.

Targeting the inflammatory GM-CSF pathway in high risk 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.

Studies on clonal hematopoiesis in the 911 WTC first responders

The terrorist attacks on the World Trade Center (WTC) created an unprecedented environmental exposure to WTC aerosolized dust and gases that contained known and suspected carcinogens including polycyclic aromatic hydrocarbons, polychlorinated biphenyls, polychlorinated furans, dioxins and asbestos. Studies from Dr.

Towards clinical testing of epitope editing to enable novel adoptive immunotherapies

Innovations in gene engineering have made it possible to reprogram immune cells to attack specific targets on cancer cells, allowing the first adoptive cellular immunotherapies, known as CAR T cells, to be approved by the FDA for the treatment B lymphoblastic leukemia. A similar approach is currently under development for AML, but in contrast to B-ALL, there is no leukemia-specific target which would be amenable to targeting by immune cells without incurring severe adverse effects.

CLL-1 CAR-T cells and trametinib for the treatment of Ras-mutated CMML and JMML

We hypothesize that demonstrating activity of CLL-1 CAR-T (CLL1CART) cell therapy with or without trametinib in pre-clinical models of chronic myelomonocytic leukemia (CMML) and juvenile myelomonocytic leukemia (JMML) is the most efficient method to bring cellular therapy to patients with these orphan diseases. In Aim 1, we will determine the in vitro and vivo efficacy of CAR-T cells redirected against CLL-1 using patient-derived xenograft (PDX) models of CMML and JMML. In Aim 2, we will evaluate the role of combining trametinib with CLL1CART cells.