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Pediatrics

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Hematology/Oncology Research

Dr. David Lyden


Our pediatric hematology and oncology faculty members conduct research to identify and develop new medications and curative strategies for childhood blood disorders and cancers. In addition to our basic science research programs, our faculty participate in single-center and multi-center trials of novel therapeutic agents, supported by the Clinical & Translational Science Center (CTSC)  and overseen by the Institutional Review Board of Weill Cornell Medicine.

Basic Science Research

The Lyden Lab

New Publication: Rodrigues, G., Hoshino, A., Kenific, C.M. et al. Tumour exosomal CEMIP protein promotes cancer cell colonization in brain metastasis. Nat Cell Biol 21, 1403–1412 (2019) doi:10.1038/s41556-019-0404-4.  https://www.nature.com/articles/s41556-019-0404-4Dr. David Lyden is co-senior author.

The laboratory of David C. Lyden, M.D., Ph.D., houses a leading research program focused on understanding the role of exosomes and tumor metastatic niches. Lyden Lab research has shown that growth factors secreted by a primary tumor prime certain tissues for tumor cell engraftment. In response to these soluble factors, tumor-associated cells, including hematopoietic progenitor cells, cluster at ‘pre-metastatic niches’, creating an environment conducive to tumor cell adhesion and invasion. At a pre-metastatic niche, newly recruited myeloid cells collaborate with other cell types residing in the tissue parenchyma. Together, these cells provide a platform of chemokines, growth factors, matrix-degrading enzymes and adhesion molecules, thereby accelerating assembly of the metastatic lesion. This model suggests that it may be beneficial for systemic therapies targeted at the metastatic microenvironment to be used early, perhaps even as an adjunct to the initial treatment of the primary tumor. Additionally, treatments may need to be tailored to each stage of metastatic progression: pre-metastatic, micrometastatic and macrometastatic, as well as to specific metastatic niches (lung, liver, brain and bone marrow). Notably, Lyden Lab collaborations have led to the development of a new interdisciplinary project bridging the fields of metastasis, tumor-secreted exosome research, lipid biology, and metabolomics.

Recent Lyden Lab research also involves the the role of tumor-secreted microvesicles, known as exosomes, in cancer metastasis. The lab’s current studies focus on the molecular pathways activated by tumor exosome uptake at metastatic sites, as well as the identification of potential therapeutic targets to thwart metastasis. Recent findings have helped to explain why cancer metastasizes within certain organ sites, a process known as orgaotropism, as proposed by Stephen Paget in 1889.

Oncology

Lisa Roth, M.D., leads our basic oncology research program, in which her team has identified client proteins of the molecular chaperone Hsp90 to be altered in pediatric Burkitt lymphoma. They currently investigate the use of an innovative Hsp90 inhibitor as a novel therapeutic treatment, and data obtained from this proposal will contribute to the clinical development of targeted therapy for pediatric Burkitt lymphoma. Dr. Roth has received grant awards from the Lymphoma Research Foundation, the NIH Loan Repayment Program, the Rally Foundation for Childhood Cancer Research and the Sass Foundation for Medical Research.

Education

Studies 

Comprehensive Care in Patients with Thalassemia and Severe Congenital Anemias

This observational, longitudinal study led by Dr. Sujit Sheth follows the natural history of patients with thalassemia and other severe congenital anemias, as well as patients with iron excess complications. Regular transfusion and iron chelation therapy are the standards of care for patients in this study. Treatment provided by the Weill Cornell Medicine New York Comprehensive Thalassemia Center includes baseline studies prior to the start of chelation therapy, and annual monitoring thereafter.

 

PROMIS as a Novel, Patient-Reported Outcome (PRO) Tool in Adult Patients with Congenital Blood Disorders

This Patient-Reported Outcome Measurement Information System (PROMIS) initiative led by Dr. Sujit Sheth utilizes multiple question banks related to physical and social function, pain and other domains. PROMIS is free, and was developed based on a U.S. population with chronic illnesses. PROMIS is administered through computer-adaptive testing, which allows for rapid questioning and incorporation of multiple item banks into a single tool.

 

Pediatrics Weill Cornell Medicine Appointments & Referrals: (646) 962-KIDS (646) 962-5437 Chairman's Office: Weill Cornell Medicine 525 E 68th St.
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New York, NY 10065 (646) 962-5437