The way we act very much depends on our surroundings; not the least on the weather conditions. In a similar way, cells in our body very much depend on what is going on around them. It has been known for a long time that the specific niches in which cells reside impact on the cellular phenotype. While most researchers have looked at chemical signals – either released into the environment or reflecting the composition of the extracellular matrix – it is becoming increasingly clear that also physical properties, such as stiffness and topography, are sensed by a wide variety of cells and influences their decisions.
It is our pleasure to welcome Prof Viola Vogel this Monday at RCSI for the MCT research seminar.
July 16th, 4.00 pm, Albert Lecture Theatre “How does the mechanobiology of extracellular matrix steer cancer progression?”
Prof Vogel and her laboratory at ETH Zurich have pioneered the field of mechanobiology. Her earlier work focused on how proteins act as mechanochemical switches to transduce mechanical signals from the ECM into the cell. More recent work addresses the importance of tissue strain in the development of tumours. Prof Vogel will also share her latest results on how physical constraints affect decision making of macrophages.
Anyone who is interested in getting a different viewing angle on cancer and immunity is heartily invited! To steer your personal decision making towards attending the talk, refreshments will be served from 3.30 pm on in the Atrium.
Neuroblastoma is a cancer of the nervous system that primarily affects children aged 5 and younger. Although neuroblastoma accounts for only 5% of childhood cancers, it is responsible for approximately 15% of childhood cancer deaths. For children with high-risk neuroblastoma – children in which cancer has spread significantly – the outlook is extremely poor. Approximately 1 in 5 of these children will not respond to treatment, and of those that do, 50% will develop drug resistance leading, in many cases, to death.
Dr Olga Piskareva, an NCRC supported scientist and Honorary Lecturer at RCSI, has recently published a study describing a new way to grow cancer cells in the lab. Traditionally, researchers grow cancer cells in the flasks on the flat surface. This is not the way cells grow in the human body. Dr Piskareva in collaboration with Dr Curtin and Prof O’Brien has designed a new way to grow cancer cells that recreate their growth in 3 dimensions as in the human or mice body. They used special cotton wool like sponges as a new home for cancer cells and populated them with cancer cells. At the next step, they gave cells the drug at the different amount and checked what happened. In this system, cells responded only to the drug at doses used in the clinic or mice models.
This new strategy to grow cells on sponges should help to understand cancer cell behaviour better and accelerate the discovery and development of new effective drugs for neuroblastoma and other cancers. This, in turn, will make the outlook for little patients better and improve their quality of life.