Author Interviews, Brain Cancer - Brain Tumors, Imperial College / 20.08.2019
Liquid Biopsy Biomarkers May Soon Detect Aggressive Brain Cancer
MedicalResearch.com Interview with:
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Prof. Georgios Giamas[/caption]
Georgios Giamas, (Dr. Biol. Hum.)
Professor of Cancer Cell Signalling
Director of Research and Knowledge Exchange
University of Sussex -School of Life Sciences
Visiting Professor, Imperial College, London
MedicalResearch.com: What is the background for this study?
Response: This study focuses on Glioblastoma (GBM), which is one of the most aggressive solid tumours for which treatment options and biomarkers are limited.
MedicalResearch.com: What are the main findings?
- Glioblastoma cells produce nanosized vesicles (aka: extracellular vesicles) that contain specific protein signatures, which can indicate the behaviour and phenotype of the respective cells of origin.
-We have identified and described certain vesicle-associated biomarkers that correspond to the most aggressive brain cancers.
-Our results can provide insights for the development of new diagnostic and therapeutic methods as well as personalized treatment strategies
Prof. Georgios Giamas[/caption]
Georgios Giamas, (Dr. Biol. Hum.)
Professor of Cancer Cell Signalling
Director of Research and Knowledge Exchange
University of Sussex -School of Life Sciences
Visiting Professor, Imperial College, London
MedicalResearch.com: What is the background for this study?
Response: This study focuses on Glioblastoma (GBM), which is one of the most aggressive solid tumours for which treatment options and biomarkers are limited.
MedicalResearch.com: What are the main findings?
- Glioblastoma cells produce nanosized vesicles (aka: extracellular vesicles) that contain specific protein signatures, which can indicate the behaviour and phenotype of the respective cells of origin.
-We have identified and described certain vesicle-associated biomarkers that correspond to the most aggressive brain cancers.
-Our results can provide insights for the development of new diagnostic and therapeutic methods as well as personalized treatment strategies

Prof. Satchi-Fainaro[/caption]
Prof. Ronit Satchi-Fainaro, PhD
Head, Cancer Research and Nanomedicine Laboratory
Department of Physiology and Pharmacology,
Sackler Faculty of Medicine,
Tel Aviv University,
Tel-Aviv 69978, Israel
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Prof. Florindo[/caption]
Prof. Helena Florindo, PhD
Head, BioNanoSciences – iMed.ULisboa
Faculty of Pharmacy,
University of Lisbon
Lisbon, Portugal
MedicalResearch.com: What are the main findings?
Response: The war against cancer in general, and melanoma in particular, has advanced over the years through a variety of treatment modalities, such as surgery, chemotherapy, radiation therapy and immunotherapy. The immune checkpoint inhibitors brought a breakthrough solution for advanced melanoma patients, but only a low percentage of those respond to this therapy, developing resistance and being affected by severe side effects. Despite the success of several vaccines against viral diseases, this success has not been materialized yet against cancer.
This study led by my lab at Tel Aviv University, and Helena Florindo’s lab at the University of Lisbon, describes the development of an effective nano-vaccine against melanoma, that also sensitizes the immune system to immunotherapies.
This nano-vaccine prevented melanoma, and also led to remarkable tumor inhibition and prolonged survival in mice already affected by this disease.


Upekha Liyanage[/caption]
Upekha Liyanage MBBS | PhD Student
School of Medicine | University of Queensland
Statistical Genetics Laboratory
QIMR Berghofer Medical Research Institute
MedicalResearch.com: What is the background for this study? What types of skin cancers are linked to these genes?
Response: Basal cell carcinoma (BCC) and squamous cell carcinoma (SCC) collectively referred to as “keratinocyte cancers” are the commonest forms of cancers of the skin. Although these cancers are less aggressive than melanoma, due to their large numbers, they pose a significant burden to the healthcare expenditure. Also, these cancers are relatively understudied when compared with melanoma. Notably, BCC and SCC are not routinely reported in cancer registries. In Australia, Medicare data are used to estimate the incidence and costs associated with these cancers. Expenditure in Australia for the diagnosis, treatment and pathology, almost exceeds $700 million for both BCC and squamous cell carcinoma. In Unites States, the average annual cost for skin cancer including melanoma is approximately $8.1 billion.
Previous research has led to identification of 29 BCC and 11 squamous cell carcinoma genetic risk variants and 7 of them overlap with both BCC and SCC risk. So, to strengthen the preventive efforts and to reveal new therapeutics, it is very timely and critical to explore more on the genetic susceptibility of these deadly cancers. We analysed ~48,000 cancer cases with ~630,000 skin cancer free controls from European ancestry population in Australia, UK and USA.
Mr Jue Sheng Ong, PhD Student
QIMR Berghofer’s Statistical Genetics Group
MedicalResearch.com: What is the background for this study? Response: Previous findings have shown conflicting results on whether coffee is associated with cancer risk.
To evaluate whether there’s any evidence for a causal relationship between coffee and cancer outcomes, we performed two types of association analyses using data from the half a million participants in the UK.
Dr. Taioli[/caption]
Emanuela Taioli, MD, PhD,
Director of the Institute for Translational Epidemiology
Icahn School of Medicine at Mount Sinai
Asociate director for Population Science
Tisch Cancer Institute
MedicalResearch.com: What is the background for this study? What are the main findings?
Response: An excess incidence of prostate cancer has been identified among World Trade Center responders. We wanted to study if this excess was associated with exposure to WTC dust
The results suggest that respiratory exposure to WTC dust can induce inflammatory and immune responses in prostate tissue. Chronic inflammation could facilitate prostate cancer development
Taken together, our results suggest that World Trade Center prostate cancer cases have a distinct gene expression pattern that may be the result of exposure to specific carcinogens during the WTC attacks. WTC dust-exposed rat prostate displayed unique changes in gene expression and immune cell infiltrates after acute dust exposure, suggesting that the effect of exposure may be measured locally in target organs such as prostate. In addition, some of the genes overexpressed in rat normal prostates as a consequence of exposure are also overexpressed in human prostate cancer tissues, suggesting a link between exposure, local immune dysregulation, and prostate cancer development

