Author Interviews, Cancer Research, Genetic Research / 08.08.2019
Study Doubles Number of Genes Linked to Squamous and Basal Cell Skin Cancer
MedicalResearch.com Interview with:
[caption id="attachment_50605" align="alignleft" width="181"]
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.
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.



Dr. Dunn[/caption]
Dr. Amy Dunn, PhD
Kaczorowski lab
The Jackson Laboratory
MedicalResearch.com: What is the background for this study? What are the main findings?
Response: Environmental factors, such as a poor diet, are known risk factors for Alzheimer’s disease. But the mechanisms are complex, and it is not known how such environmental perturbations interact with individual genetic variation to confer disease risk. Previous studies have not adequately addressed how the combination of genetic variant and environmental factors combine to alter cognitive response to a poor diet.
To investigate gene-by-environment interactions, we fed either a normal diet or a high-fat diet to a genetically diverse Alzheimer’s disease mouse model population starting at six months of age and monitored metabolic and cognitive function.
We observed accelerated working memory decline in the mice on the high-fat diet after eight weeks, with substantial gene-by diet effects on both cognitive and metabolic traits.
Metabolic dysfunction was more closely related to cognitive function in mice carrying Alzheimer’s mutations than in those without. Interestingly, the high-fat diet affected metabolic function differently in female versus male mice.
Dr. Hui Wang[/caption]
Prof Hui Wang PhD
Wuhan University
China
MedicalResearch.com: What is the background for this study? What are the main findings?
Response: We started our work in the adverse outcome of maternal caffeine intake during pregnancy about 15 years ago. Then, we found that prenatal caffeine intake could result in nonalcoholic fatty liver disease in the offspring. However, the underlying mechanism was unclear.
So, we start the current work, and found that hat maternal caffeine intake disrupts liver development before and after birth, which might be the trigger of the adult non-alcoholic fatty liver disease in the offspring rats. Moreover, we further found that the fetal programming of liver glucocorticoid – insulin like growth factor 1 axis, a new endocrine axis first reported by our team, might participate in such process.
Kazuo Kitagawa, MD PhD
Department of Neurology
Tokyo Women's Medical University
Tokyo, Japan
MedicalResearch.com: What is the background for this study? What are the main findings
Response: Reduction in blood pressure (BP) reduces the rates of recurrent stroke, but the optimum BP target remained unclear.
The results of RESPECT Study together with up-dated meta-analysis showed the benefit of intensive blood pressure lowering (<130/80 mmHg) compared with standard BP lowering (<140/90 mmHg).