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HKUST Researchers Discover the Genetic Contributions to
Alzheimer’s Disease in the Chinese Population
Offering Important Clues to the Development of Effective Diagnosis and
Treatments
28-03-2018
A research team led by scientists from the Hong Kong University of Science and Technology (HKUST) has identified new Alzheimer’s disease (AD) genetic risk factors in the Chinese population.
The team, led by Prof Nancy Ip, Vice-President for Research and Graduate Studies, Director of the State Key Laboratory of Molecular Neuroscience and The Morningside Professor of Life Science at HKUST, conducted the study in collaboration with Prof John Hardy and Dr Mok Kin Ying from University College London; Prof Li Yun from the University of North Carolina; Prof Chen Yu from the Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences and the HKUST Shenzhen Research Institute; and Prof Guo Qihao from Huashan Hospital and Fudan University.
AD is the most common and best known form of dementia, and one of the leading causes of mortality in the elderly. It is a progressive age-related neurodegenerative disorder that is characterized by amyloid plaques, neurofibrillary tangles and neurological inflammation, which result in cognitive decline and neuronal loss in the brain. Although the prevalence of AD is increasing rapidly with the growing aging population worldwide, the underlying causes of the disease are still unclear, which is a major challenge for effective diagnosis and treatment. Understanding the genetic contributions to AD – by identifying disease-associated genetic risk factors, is essential for deciphering the causes of the disease. Because these genetic risk factors may vary among ethnic groups, genetic studies across different ethnic populations are critical. However, to date, majority of these studies have been conducted in Caucasian populations, and there is relatively little data for other populations. This study is one of the first to investigate the genetic contributions to AD in the Chinese population.
By conducting the first whole-genome sequencing (WGS) study in a Chinese AD cohort comprising thousands of participants, the team identified genetic factors associated with AD. The researchers identified variants of a well-studied genetic marker, APOE, as well as two other novel risk genes (GCH1 and KCNJ15) associated with AD. They also discovered that these risk factors are associated with the alteration of immune pathways, specifically changes in immune biomarkers in the brain and blood. These findings provide critical new evidence of the role of the immune system in AD pathology. The ground-breaking work has been published in the prestigious scientific journal, Proceedings of the National Academy of Sciences (PNAS). This study serves as Prof Ip’s Inaugural Article for PNAS. The Inaugural Articles comprise a special series of research articles contributed by newly elected members of the National Academy of Sciences (profile of Prof Ip: http://www.pnas.org/content/115/8/1675). “Systematic studies of AD-associated biomarkers can facilitate a deeper understanding of the cause of AD and provide insights for developing improved diagnostics and therapies for AD,” said Prof Ip. “Our next goal is to establish a comprehensive biomarker database for Chinese AD patients, including genetic, transcriptomic, proteomic, and brain imaging data, by broadening our collaboration with academics and physicians.”
This project was generously supported by the University Grants Committee, the Research Grants Council, the Innovation and Technology Commission, National Basic Research Program of China (973 Program), and the National Natural Science Foundation of China.
Prof Nancy Ip is currently the Vice-President for Research and Graduate Studies, The Morningside Professor of Life Science, and the Director of the State Key Laboratory of Molecular Neuroscience at HKUST. Since joining HKUST in 1993, she has served as Dean of Science, Director of the Biotechnology Research Institute, and Head of the Department of Biochemistry. Prof Ip’s outstanding scientific accomplishments have won her numerous awards and honors including the National Natural Science Awards, the L’OREAL-UNESCO ‘For Women in Science’ Award, and the 10 Science Starts of China by Nature. She has been elected to the National People’s Congress, the Chinese Academy of Sciences, the US National Academy of Sciences, the American Academy of Arts and Sciences, and the World Academy of Sciences. She is also a founding member of The Academy of Sciences of Hong Kong.
About The Hong Kong University of Science and Technology
The Hong Kong University of Science and Technology (HKUST) (www.ust.hk) is a world-class research university focuses on science, technology and business as well as humanities and social science. HKUST offers an
(From left) Prof Chen Yu from the Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences; Prof Amy Fu, HKUST Research Associate Professor of Life Science; Prof Nancy Ip, HKUST Vice-President for Research and Graduate Studies; PhD student Zhou Xiaopu and Dr Mok Kin Ying from University College London.
The researchers identified several new genetic risk factors associated with Alzheimer’s Disease, offering important clues to the development of effective diagnosis and treatments.
international campus, and a holistic and interdisciplinary pedagogy to nurture well-rounded graduates with global vision, a strong entrepreneurial spirit and innovative thinking. HKUST attained the highest proportion of internationally excellent research work in the Research Assessment Exercise 2014 of Hong Kong’s University Grants Committee, and is the world’s second in the latest QS’ Top 50 under 50 ranking. Its graduates were ranked 12 worldwide and top in Greater China in Global Employability University Survey 2017.
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