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PICOTEES:a privacy-preserving online service of phenotype exploration for genetic-diagnostic variants from Chinese children cohorts

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Journal of Genetics and Genomics 2024年第2期51卷 243-251页

作者： Xinran Dong Yulan Lu Lanting Guo Chuan Li Qi Ni Bingbing Wu Huijun Wang Lin Yang Songyang Wu Qi Sun Hao Zheng Wenhao Zhou Shuang Wang Center for Molecular Medicine Children's Hospital of Fudan UniversityShanghai 201102China Key Laboratory of Birth Defects Children's Hospital of Fudan UniversityShanghai 201102China Department of Bioinformatics Hangzhou Nuowei Information Technology Co.LtdHangzhouZhejiang 310000China The Third Research Institute of the Ministry of Public Security Shanghai 200031China Xiamen Campus of children's Hospital of Fudan University XiamenFujian 361006China Institutes for Systems Genetics West China HospitalChengduSichuan 610041China Shanghai Putuo People's Hospital Tongji UniversityShanghai 200060China

The growth in biomedical data resources has raised potential privacy concerns and risks of genetic information leakage. For instance, exome sequencing aids clinical decisions by comparing data through web services, but it requires significant trust between users and providers. To alleviate privacy concerns, the most commonly used strategy is to anonymize sensitive data. Unfortunately, studies have shown that anonymization is insufficient to protect against reidentification attacks. Recently, privacy-preserving technologies have been applied to preserve application utility while protecting the privacy of biomedical data. We present the PICOTEES framework, a privacy-preserving online service of phenotype exploration for genetic-diagnostic variants (https://***:3000/). PICOTEES enables privacy-preserving queries of the phenotype spectrum for a single variant by utilizing trusted execution environment technology, which can protect the privacy of the user's query information, backend models, and data, as well as the final results. We demonstrate the utility and performance of PICOTEES by exploring a bioinformatics dataset. The dataset is from a cohort containing 20,909 genetic testing patients with 3,152,508 variants from the children's Hospital of Fudan University in China, dominated by the Chinese Han population (>99.9%). Our query results yield a large number of unreported diagnostic variants and previously reported pathogenicity.

关键词： Privacy protecti on rare diseases in children Genetic testing Web system Trusted executi on envir onment

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