The researcher’s path includes days when you feel so low because your grant or paper was rejected or even both within a very short time frame. It happened to me a couple of weeks ago. At this point, I felt helpless sarcastic and non-motivative reading reviewer’s comments. One reviewer mixed up neuroblastoma with a brain tumour, so their comments were not relevant. Another just found no time to read through, the sentence was very short – ‘not a priority or interest‘. One more went to their area of expertise asking to fulfil it rather than comment on the actual focus of the study. Such comments are so common that any submission of results or a proposal could be considered as a draw. It has been neither my first time not the last. More to come.
On November 20th, the Irish neuroblastoma researchers have met for the first time to set up a collaborative research hub. The aim is to consolidate their expertise and skills in order to crack the neuroblastoma code together.
They all have different science background spanning from molecular and cellular biologists, immunologists, tissue-engineering, bioinformatics, mathematical modelling and clinicians representing RCSI, UCD, TCD, OLCHC and NCRC. During this meeting, researchers talked about their challenges and progress finding out that we are complementing each other projects. Clinicians from different OLCHC departments exposed basic researchers to realities of the disease. None would find this information in academic papers: it is what you see in the clinic and how it works in practice.
Big thank you to Dr Cormac Owens for the invitation and linking us together and Prof Jacinta Kelly for mapping the support available from the NCRC and CMRF.
Our next meeting will be held in RCSI in January 2018.
Happy Birthday the Irish Neuroblastoma Research Consortium!
As a part of Science Week, our Department hosted Lab Safari for the secondary school students aiming to give a sense of what scientists do in the lab. The focus of my research is the identification of novel biomarkers for neuroblastoma response to chemotherapy. So, we decided to explain the concept of biomarkers and the importance of discovering novel biomarkers for neuroblastoma. Between me and John we covered biomarker’s basics and carried out the detection of MYCN in neuroblastoma cell lines. Here, I am summing up our activities in the form of Qs & As:
1. What are biomarkers?
Biomarkers are signposts of the body condition. Biomarkers – bio is for biological and markers – for molecules indicating that something is going wrong or differently in the body. They can help doctors to read these changes and identify a condition or disease. There are biomarkers for heart disease, cancer, diabetes and many others.
2. What type of molecules can serve as biomarkers?
Various types of molecules can do the job as long as they can differentiate the normal and abnormal process in the body. It can be DNA, RNA, proteins and hormones. These molecules can be detected in the blood, urine, stool, tumour tissue or any other bodily tissues or fluids.
3. How can we discover novel biomarkers?
Research, research and again research. We have to learn more basic facts about DNA, RNA and proteins. We need to be able to link this knowledge with health conditions including cancer. We need to identify how these molecules speak about the unhealthy conditions. We need to explore whether biomarkers exist within the disease that can predict the response to treatment and outlook.
4. What biomarkers are known in neuroblastoma?
There are various biomarkers that are specific for neuroblastoma. Catecholamines in urine are chemicals produced by neuroblastoma cells. Chromogranin A – is a protein that can be detected in the blood. It is unspecific biomarker because it can be secreted by neuroblastomas and some other tumours (e.g. pancreas and prostate cancer). Various chromosomal aberrations can be biomarkers of neuroblastoma aggressiveness. One of the strongest predictors of rapid neuroblastoma progression is MYCN status.
5. What is MYCN?
The MYCN is a proto-oncogene protein and a member of the MYC family of transcription factors. MYCN was identified in 1983 and very soon became a routine biomarker for neuroblastoma aggressiveness. This protein is very important for the normal embryo development. The amplification of this gene leads to the excess of MYCN protein in cells prompting cells to grow and divide faster transforming normal cells into tumour cells.
6. How did we detect MYCN in neuroblastoma cell lines?
A day before the demonstration, we carried out some preparation steps. We selected several neuroblastoma cell lines with known MYCN status. Some cell lines had MYCN amplification, other didn’t. Among those that did have the amplification, the expression of MYCN protein was different giving us a good illustration of biomarker’s quantity. So, we run SDS-PAGE, a technique that helps to separate the cellular protein mix based on their size.
Then the separated proteins were transferred onto a membrane and exposed to a buffer containing an antibody for MYCN (primary antibody). This antibody recognises only MYCN. At the next step, we added another antibody that has a dual role – it can attach to the primary antibody and produce a signal that can be visualised. The next step would have been the visualisation itself and the one for Lab Safari. So, we were ready.
Once we finished the basics of biomarkers, we moved to the biomarker MYCN detection step. The buffer for visualisation was added and the membrane was imaged.
If you like this idea and want to have this demonstration for your science classes at school, please contact me and we would be happy to do it for you.
This network of galaxies is a new project to get insights on how and where childhood cancer is placed on social media. It is a collaborative project with Prof Richard Arnett. It is already very exciting and more to come!
#ChildhoodCancerAwarenessMonth is over. However, childhood cancer is not going away. The battle is not over. Families will be still affected by the lack of treatment options available to their child. More research is needed. Please do support enthusiastic people who do want to make the change. Every single contribution counts.
The more important reason is that the research itself provides an important long-run perspective on the issues that we face on a day-to-day basis. (Ben Bernanke)
I would like to thank everyone who followed my blog during this month and hope would continue!
We hear great news from the US labs that a new treatment is on the way for children with cancer. Most of their research is funded by charities and success stories appear because of the people who want to make dreams come true for kids with cancer and their families. Dreams for longer and healthier life.
Interestingly, the study led by Professor Bernie Hannigan, the University of Ulster, which was published by Medical Research Charities Group, identified main gaps that keep Ireland at the bay:
Childhood cancer research areas are not prioritised, including neuroblastoma.
No Government funding support for childhood cancer research. The research has to compete on general terms with well-funded research groups/centres/clusters focused on the adult cancers (breast, prostate, etc)
No systematic involvement in research of Patients or other lay people.
No medical research charities to fill the gap in childhood cancer research funding.
The focus of the scientific program was on “Translating Science into Survival”. Talks covered the challenging areas in cancer immunology and immunotherapy. The full list of topics can be found in the meeting program.
At the moment cancer immunology and immunotherapy is a hot topic in the next generation of anti-cancer therapies. Lots of attention is given to checkpoint immunodrugs as it was proven by the prevalence of talks on this subject in the program. Indeed, this drug has great potential, but at the same time, it is not universal. About 50% of patients do not benefit from it.
What lessons have been learned from the talks:
Checkpoint immunotherapies are the main stream
Not all cancer patients would respond to immunodrug
Genetic landscape of a tumour and/or the patient may contribute to this, thus making beneficial to check genetics for this type of treatment
Immunodrugs work better in combination with conventional therapies such as chemotherapy.
The immune system can be tuned by a drug, but it will switch on compensatory mechanisms to balance the intervention.
This research institute was established in 1904 to support work of Paul Ehrlich, its first director and funded by the private foundation “Chemotherapeutisches Forschungsinstitut Georg-Speyer-Haus”. Paul Erlich is the Father of the chemotherapyconcept originally developed to treat diseases of bacterial origin. He reasoned that there should be a chemical compound that can specifically target bacteria and stop its growth. He developed Salvarsan, the most effective drug for treatment of syphilis until penicillin came onto the market.
Paul Erlich is also known for his contribution to cancer research. He and his colleagues actively experimented on how tumour originates and spread. They also tried to understand how immune system can beat cancer applying vaccination concepts.