We have recently developed the first genetic mouse model for therapy and analysis of metastatic prostate cancer. Now we can test if and how modern concepts of cancer evolution can outperform the 80-year-old standard of care - hormone deprivation therapy - and turn lethal prostate cancer into a curable disease.
Lloyd Trotman’s recent research path begins at his discovery some years ago that the loss of a single copy of a master tumor suppressing gene called PTEN is sufficient to permit tumors to develop in animal models of prostate cancer. His team later found that complete loss of PTEN paradoxically triggers senescence, an arrested state that delays or blocks cancer development in affected cells. These findings explained why many patients only display partial loss of this tumor suppressor when diagnosed with prostate cancer. Now the team is researching ways to restore the PTEN protein levels in these patients. This therapeutic approach could slow disease progression and thus greatly reduce the need for surgical removal of the prostate or similar drastic interventions that carry the risks of incontinence and impotence. Their second approach to combat prostate cancer is to model the lethal metastatic disease in genetically engineered mice. They are developing a novel approach that allows for quick generation and visualization of metastatic disease. The efficacy of existing and novel late-stage therapies, such as antihormonal therapy, can then be tested and optimized in these animals. At the same time, the Trotman lab is exploring the genome alterations associated with metastatic disease and with resistance to therapy. To this end, they use single- and multicell genome sequencing techniques developed at CSHL by Drs. Wigler and Hicks.
Fresh insights into prostate cancer surprise Movember crowd
November 22, 2019
For a special “Movember” edition of Cocktails and Chromosomes, Dr. Lloyd Trotman explained what his lab is doing to understand deadly prostate cancers.
Movember with Lloyd Trotman—A Cocktails and Chromosomes talk about prostate cancer
November 19, 2019
In this Movember edition of Cocktails & Chromosomes, learn how new concepts of cancer evolution could turn prostate cancer into a curable disease.
Enzyme PHLPP2 could be a viable drug target for treating prostate cancer
May 15, 2019
Researchers have identified an enzyme called Phlpp2 as an attractive drug target for treating prostate cancer.
One experiment: Observing cancer’s progress in a mouse prostate
March 14, 2019
Using a technique originally designed for mapping brains, two CSHL labs have worked together to image cancer progression in a mouse prostate.
Study reveals a way to make prostate cancer cells run out of energy and die
April 3, 2018
In lethal prostate cancer, the gene PTEN is often missing. In such cases, one effective treatment may be to administer drugs that inhibit mitochondria
Researchers identify “Achilles’ heel” of PTEN that helps drive prostate cancer progression
February 13, 2017
Researchers at CSHL have discovered that a protein called Importin-11 protects the anti-cancer protein PTEN from destruction by transporting it.
No (real) moustache required to join the “Movember” party
November 15, 2016
Members of Trotman don fake moustaches in order to raise money for prostate cancer research during Movember.
Movember: Fighting for health in the Lab and the gym
November 20, 2015
Dawid Nowak discusses the difficulties and challenges involved in understanding pancreatic cancer.
Third-year student Abram Handly Santana explores the pancreatic tumor microenvironment
August 1, 2015
Abram Handly Santana wants to understand how the tumor microenvironment contributes to pancreas cancer.
An immune system marker for therapy-resistant prostate cancer
June 4, 2015
Research shows how signaling by an immune system component appears to play an important role in driving particularly aggressive prostate cancer