Novel Deep Learning Methods for Single-Cell RNA-Seq and CITE-Seq Studies- [electronic resource]
Novel Deep Learning Methods for Single-Cell RNA-Seq and CITE-Seq Studies- [electronic resource]
- 자료유형
- 학위논문파일 국외
- 최종처리일시
- 20240214101655
- ISBN
- 9798380104593
- DDC
- 574
- 저자명
- Zhang, Xiang.
- 서명/저자
- Novel Deep Learning Methods for Single-Cell RNA-Seq and CITE-Seq Studies - [electronic resource]
- 발행사항
- [S.l.]: : The University of Arizona., 2023
- 발행사항
- Ann Arbor : : ProQuest Dissertations & Theses,, 2023
- 형태사항
- 1 online resource(94 p.)
- 주기사항
- Source: Dissertations Abstracts International, Volume: 85-02, Section: B.
- 주기사항
- Advisor: An, Lingling.
- 학위논문주기
- Thesis (Ph.D.)--The University of Arizona, 2023.
- 사용제한주기
- This item must not be sold to any third party vendors.
- 초록/해제
- 요약In recent years, an increasing number of studies have shown that the expression levels of mRNA molecules (collectively referred to as the "transcriptome") are highly correlated with cell types and states. Initially, RNA expression was quantified using microarrays and later through next-generation sequencing techniques (NGS) in a method known as bulk RNA-seq. While bulk RNA-seq has contributed significantly to biomedical research and clinical discoveries, averaging gene expressions across a large number of cells does not provide detailed information about individual cells. To address this limitation, single-cell RNA-seq (scRNA-seq) was developed and enables researchers to profile RNA molecule expressions in individual cells at a much higher resolution on a genomic scale. With this powerful tool, more innovative discoveries in biomedicine can be expected. Here, two analytic methods on single-cell research are developed. The first study introduces an effective imputation method called NISC, which uses an autoencoder with weighted loss function, and regularization to denoise scRNA-seq count data. A systematic evaluation shows that NISC is superior to existing imputation methods in handling sparse scRNA-seq count data and improving cell type identification. The second study focuses on CITE-seq data, which is a type of single-cell multi-omics data that combines scRNA-seq data with surface protein data. By integrating these data sets, researchers can analyze complex big data at multilevel transitions for single cells and uncover novel heterogeneous tissue architectures. However, a critical challenge in CITE-seq data analysis is that the dimension of RNA is typically thousands of times higher than that of protein, which can diminish the impact of protein on downstream clustering. To meet this challenge, an autoencoder-based dimension reduction method, AutoCITE is developed. It integrates the protein data and RNA data, thereby improving the accuracy of downstream cell type identification for CITE-seq data.
- 일반주제명
- Biostatistics.
- 일반주제명
- Bioinformatics.
- 일반주제명
- Cellular biology.
- 일반주제명
- Genetics.
- 키워드
- Microarrays
- 키워드
- Biomedicine
- 기타저자
- The University of Arizona Biosystems Analytics & Technology
- 기본자료저록
- Dissertations Abstracts International. 85-02B.
- 기본자료저록
- Dissertation Abstract International
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.