Any scientist of any age who wants to make important discoveries must study important problems. Dull or piffling problems yield dull or piffling answers. It is not enough that a problem should be “interesting.” … The problem must be such that it matters what the answer is—whether to science generally or to mankind.

 

— Sir Peter B. Medawar

The Piskounova lab is interested in understanding the molecular plasticity of metastasizing cancer cells using patient-derived tumor models of melanoma and pancreatic cancer. We are focused on understanding molecular mechanisms that enable spread and survival of cancer cells to vital organs during advanced metastatic disease. We use patient derived-xenografts of melanoma and pancreatic cancer in vivo and cell culture systems in vitro to functionally identify molecular pathways that enable cancer cells to progress through different steps of the metastatic cascade.

 

Why study metastasis?

 

The main cause of death in cancer patients is the spread of cancer cells from the original tumor site to vital organs in the body. This process is called metastasis. Yet there are no therapies that specifically target metastatic cancer cells. Current chemotherapies target the original tumor but also poison normal cells in the body, limiting the efficacy of treatment and leading to toxic side effects. A possible way to circumvent this problem is to target the specific vulnerabilities of metastasizing cells. It is therefore imperative for us to better understand the molecular processes used by cancer cells to survive and thrive as they enter the blood and spread to vital organs. Our work uses melanoma and pancreatic cancer cells taken directly from patients to model metastasis. We inject these cancer cells into mice and observe metastasis to vital organs. We showed that tumors that metastasize in mice are those that metastasized in patients, and that the same vital organs are involved in mice and patients.  Therefore, this experimental model of metastasis reflects the clinical outcome of the disease in the patients. Detailed understanding of key events that allow cancer cell survival during metastasis will enable us to develop therapeutic strategies that specifically target metastatic disease but spare normal cells in the body.

We are looking for talented scientists!

POSTDOCS

We welcome exceptional researchers at all levels to apply for positions in our lab and are actively looking for postdoctoral researchers. Please email your CV and a brief description of research interests and background to Elena Piskounova elp2025@med.cornell.edu and arrange to have 3 letters of reference emailed directly to elp2025@med.cornell.edu

STUDENTS

If you are a Weill Cornell Medicine or Tri-I graduate student from any program, consider joining our lab and feel free to get in touch! The Piskounova Lab is part of the BCMB allied program.

Our Latest Research

A team of scientists at the Children’s Medical Center Research Institute at UT Southwestern (CRI) has made a discovery that suggests cancer cells benefit more from antioxidants than normal cells, raising concerns about the use of dietary antioxidants by patients with cancer. The studies were conducted in specialized mice that had been transplanted with melanoma cells from patients. Prior studies had shown that the metastasis of human melanoma cells in these mice is predictive of their metastasis in patients.

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