Professor Vanessa Hayes
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Professor Vanessa Hayes

Petre Chair of Prostate Cancer Research
School of Medical Sciences
Professor Vanessa Hayes

Vanessa is the Petre Chair of Prostate Cancer Research in the School of Medical Sciences, heading the Ancestry & Health Genomics Laboratory located within the Charles Perkins Centre (CPC). The labs focus is on investigating the complexities of the human and cancer genome and how genomic variation has shaped human evolution and health. Our over-riding goal, to unlock the ancestral and mutagenic factors driving ethnic-geographic prostate cancer health disparity to deliver precision medicine to diagnose, treat and prevent specifically lethal disease. Our program of research is underpinned by expertise in genomic and data science, with a steadfast commitment to securing individualized cancer care options for patients worldwide. Our vision is to use patient-driven research that links genomic science with clinical science, specifically population science (or ancestry genomics). This multilayered approach is vital for investigating the entire spectrum of factors that can impact cancer progression and patient health outcomes.

Human genomics, Human diversity, Genome Mapping, Prostate cancer, Cancer disparities, Cancer genomics, Complex Genomic Rearrangements, Bioinformatics, Biostatistics, Genetic epidemiology, Population genetics, Human evolution, Human migration, Human adaptation, Southern Africa, Indigenous genomics, Mitochondrial genomics, Genomic technology.

Project 1: Mapping early human evolution through genomic diversity

No consensus exists on the origin and timeline of modern human evolution.The major reason is that inference methods used are highly dependent on available genetic data, both source and type.The literature is biased towards the study of recently diverged non-African populations and maternally-derived mitochondrial or partial genomic data. Modern humans have spent more time evolving inside Africa and as our team recently showed within southern Africa. The overall aim of this projectis to resolve modern human’s earliest evolution and associated survival (evolutionary fitness), by targeting the earliest diverged (oldest extant) and genetically diverse human populations, which are found in southern Africa. Merging southern African data with global population-wide resources, ancient human and archaic hominin fossils, and inferred ‘ghost’ populations, we will establish an evolutionary picture of global migrations, sub-population complexities and inter-species relatedness. Additionally, an aim of this project will be tocreate a human ancestral genomic frame of reference.

Project 2: Resolving the genomic basis for global/ethnic prostate cancer health disparities

Prostate cancer (PCa) burden is characterised by striking geographic and ethnic disparity.While incidence rates are highest in Australia, mortality rates are highest in Africa, specificallysouthern Africa where rates are 2.6-fold higher than Australia. This disparity is further alarming when considering the life expectancy of the average South African man is 20 years younger than his Australian brothers. Also, PCa is a genetic disease. While ones germline variation determines individual risk, acquired variants drive tumour evolution. Yet data has been lacking for Africa.In 2008, CIA-Hayes and colleagues initiated theSouthern African Prostate Cancer Study (SAPCS), withthe goal, toprovide evidence-based clinical, lifestyle and genomic data that underpins PCadisparities in African men. Recruiting over 2,500 men, the evidence is clear. PCa is asignificant health burden in southern Africa, with the risk of presenting with lethal disease 1.6-fold greater for men living in rural over urban communities. more recently the team has initiated the East African Prostate Cacner Study (EAPCS), which inpartnership with the SAPCS team have formed a network for African PCa genomic research efforts via the initiative of Dzomo. The SAPCS and EAPCS are committed to identifying the genetic basis for significant PCa health disparity.

Project 3: Resolving complex genomic rearrangements driving prostate cancer

Cancer is a genetic disease driven by the acquisition of oncogenic mutations. In prostate cancer these mutations may be complex resulting in extensive chromosomal rearrangements, including for example chromothripsis (chromosome shattering), chromoplexy (chains of balanced rearrangements), kataegis (clustered nucleotide substitutions), and telomere crisis, many which have only recently been reported. In this study we use cutting-edge genomic technologies and bioinformatic analytics to identify not only the extent of complex genome rearrangements acquired during prostate cancer progression, but determine how these phenomena interact to drive genomic instability and the relevance of this instability to disease progression and tumour evolution. The team is applying existing and developing new computational/mathematical methods to identify patterns (signature) in the occurrence of complex somatic genomic reconfigurations that might be uniquely ascribed to particular mutational process.

Affiliated positions: (i) Extraordinary Professor in the School of Health Systems & Public Health, University of Pretoria, South Africa, (ii) Honorary Professor in Health Sciences, University of Limpopo, in South Africa

Director: DoD-funded HEROIC Prostate Cacner Precision Health (PCaPH) Africa1K Consortium and TARGET Africa Project

Scientific Director: (i) Diversity inclusive Genome Study for Southern Africa (DiGS-SA), (ii)South African Prostate Cancer Study (SAPCS), (iii) East African Prostate Cancer Study (EAPCS)

Cancer, Healthy Ageing

Publications

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Selected Grants

2023

  • Genomic bases for African geo-ethnic prostate cancer health disparity, Hayes V, Jaratlerdsiri W, National Institutes of Health (USA)/Research Grant

2022

  • TRANSFER IN: HEROIC Prostate Cancer Precision Health (PCaPH) Africa1K - Powering precision health to improve prostate cancer outcomes in Africa. V. Hayes, Hayes V, US Department of Defence (USA)/Prostate Cancer Research Program
  • High-risk prostate cancer in southern Africa: Unravelling the genome and exposome (TARGET Africa), Hayes V, US Department of Defence (USA)/Prostate Cancer Research Program

Related research articles

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