The Role of P53 in Radiosensitivity, Cancer in Whales, and More

  • The advent of mining large datasets for cancer data made it possible to discern patterns shared by different cancer types. Therefore, providing an opportunity for applying the approaches proved to be successful in one type of cancer to another type based on the shared characteristics. The method is often used in predicting anti-cancer drug response. Researchers from the University of Michigan Rogel Cancer Center developed a visualization method aimed at improving anti-cancer drug response predictions “by teasing apart and allowing for simultaneous examination of differences across multiple cancer types as well as within individual types”. The method supports an evidence-based approach in making treatment decisions by considering both cancer type and individual variation within that cancer type. This research was published in PLOS Computation Biology.
  • An international team of scientists studied a novel approach to drug discovery, different from the traditional small molecule approach that target only some percentage of proteins active in causing the disease. The new method, aimed at battling the cancer cell drug resistance, “uses a family of human enzymes called ubiquitin ligases that exist in human cells”, which, potentially, can be guided to degrade and kill the disease-causing protein. The study was published in Nature.
  • As cancer radiation therapy efficiency depends on multiple factors, the scientists continue their efforts to understand the biology of tissues sensitivity to radiotherapy. The scientists from the Blavatnik Institute at Harvard Medical School, Massachusetts General Hospital and the Novartis Institutes for BioMedical Research focused their research on the role of a well-known tumor suppressor protein p53. It is long established that p53 is linked to the degree of a tissue’s sensitivity to radiation, but the exact nature of this connection was unknown. This new research found that post radiation exposure, tissues sensitive to radiation show persistent p53 signaling while more resistant tissues show just brief p53 activation. The researchers concluded that it is the dynamics of p53 signaling after radiation that is a factor in the tissues’ radiosensitivity. and not the excess of p53 protein in a tissue. The study was published in Nature Communications.
  • Cancer research is conducted not only in humans but in other species. Cancer research in animals may have potential implications for treating human cancers. In the new study, the international team of scientists focused on whales and the reasons for their low cancer rates. The scientists “used DNA sequencing to create a genetic map of whales’ tumor suppressor genes and those of 15 other mammal species”. This study that contributed to the knowledge of genetic mechanisms of tumor suppression in whales was published in Proceedings of the Royal Society.

Administering Vaccines—And Hope

Allison Betof Warner

Dr. Allison Betof Warner, MD, PhD, Medical Oncologist

A recent Business Insider article focuses on what it feels like to administer COVID vaccines. Experiences from practitioners in four states highlight the hope and excitement at vaccination centers across the country.

In the article, MSK’s Dr. Allison Betof Warner discusses how the pandemic shifted the focus of her work from melanoma treatment and research to COVID care. She is now vaccinating staff and cancer patients, and has found the experience rewarding and emotional:

“The opportunity to really be part of the solution and be on the frontline, not only caring for these patients, but now fixing the problem and helping prevent more patients from getting COVID —  this is why you go to medical school. These are the moments that you dream about.”

For the most up-to-date information on COVID vaccination at MSK, visit https://www.mskcc.org/coronavirus/covid-19-vaccine. MSK will contact patients directly when they can schedule vaccination.

Cancer care for LGBTQ2SPIA+ Patients

As previously discussed in the literature, the lesbian, gay, bisexual, trans, queer, two-spirit, pansexual, intersex, asexual, plus (LGBTQ2SPIA+) population faces multiple healthcare barriers.

In a new study from the University of Alberta (Canada), undergraduate researchers surveyed 214 radiation therapists involved in cancer care to assess their knowledge, attitudes, and practice behaviors related to this patient population. The study revealed knowledge gaps, with over 70% of the therapists not familiar with all terms associated with LGBTQ2SPIA+. While 74.5% reported experience caring for the LGBTQ2SPIA+ community, only 33% included appropriate gender pronouns when caring for LGBTQ2SPIA+ cancer patients. 87% of the surveyed providers expressed interest in receiving more education on the LGBTQ2SPIA+ community needs. While not generalizable to all Canadian radiation therapists, the results identified gaps that should be addressed to provide inclusive care. The study was published in the Journal of Medical Imaging and Radiation Sciences.

One of this study’s findings is that over 70% of respondents were unsure if specific resources were available for the LGBTQ2SPIA+ population at their cancer center. Here are two resources available to the MSKCC LGBTQ2SPIA+ healthcare providers and patients:
-The National LGBT Cancer Network resources to providers: LGBTQ cultural competency trainings.
– MSKCC resources for LGBTQ2SPIA+ cancer patients: https://www.mskcc.org/about/lgbt-healthcare-msk