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Predicting and Regulating Gene Expression Using Sequence-Based Deep Learning Models
Predicting and Regulating Gene Expression Using Sequence-Based Deep Learning Models
상세정보
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20260202103608
- ISBN
- 9798288862595
- DDC
- 575
- 서명/저자
- Predicting and Regulating Gene Expression Using Sequence-Based Deep Learning Models
- 발행사항
- [Sl] : University of California, Berkeley, 2025
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2025
- 형태사항
- 123 p
- 주기사항
- Source: Dissertations Abstracts International, Volume: 87-01, Section: B.
- 주기사항
- Advisor: Ioannidis, Nilah M.
- 학위논문주기
- Thesis (Ph.D.)--University of California, Berkeley, 2025.
- 초록/해제
- 요약Gene expression is a complex, tightly regulated process controlled by cis-acting DNA elements including promoters and enhancers, and trans-acting elements such as transcription and splicing factors. Understanding how these elements coordinate to regulate expression is a key goal in regulatory genomics. Recently, sequence-based deep learning models have emerged as powerful tools for learning the sequence determinants of gene expression. In this work, we both leverage these models for cis-regulatory element design and propose methods to improve their predictive capabilities. First, we explore transfer learning strategies to improve promoter-driven expression prediction, especially in data-constrained settings. After showing that these strategies can substantially improve prediction performance, we couple our sequence-based models with sequence optimizers in a novel model-based optimization workflow to design cell-type-specific promoters that are crucial for gene therapies. Crucially, this workflow accounts for practical constraints such as adversarial designs, sequence diversity, and prediction uncertainty, and improves the cell-type-specificity of most sequences in a challenging setting. Next, we explore methods to improve individual-level gene expression prediction, a task on which current sequence-based deep learning models fail. Fine-tuning on paired personal genome and transcriptome data improves predictions on held-out individuals for genes seen during training-matching baselines-but these models still fail to generalize to unseen genes. Finally, we address limitations of current splicing predictors, which do not generalize to unseen tissues or model the expression levels of trans-acting splicing factors. We propose a new sequence-based model that incorporates splicing factor expression to make tissue-specific splicing predictions, even in tissues not seen during training. This model captures some tissue-specific splicing patterns and achieves performance comparable to existing models trained directly on those tissues, highlighting the utility of incorporating regulatory context for generalization.
- 일반주제명
- Genetics
- 일반주제명
- Biology
- 일반주제명
- Computer science
- 키워드
- Sequence design
- 기타저자
- University of California, Berkeley Computer Science
- 기본자료저록
- Dissertations Abstracts International. 87-01B.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
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■020 ▼a9798288862595
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■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a575
■1001 ▼aReddy, Aniketh Janardhan.
■24510▼aPredicting and Regulating Gene Expression Using Sequence-Based Deep Learning Models
■260 ▼a[Sl]▼bUniversity of California, Berkeley▼c2025
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2025
■300 ▼a123 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 87-01, Section: B.
■500 ▼aAdvisor: Ioannidis, Nilah M.
■5021 ▼aThesis (Ph.D.)--University of California, Berkeley, 2025.
■520 ▼aGene expression is a complex, tightly regulated process controlled by cis-acting DNA elements including promoters and enhancers, and trans-acting elements such as transcription and splicing factors. Understanding how these elements coordinate to regulate expression is a key goal in regulatory genomics. Recently, sequence-based deep learning models have emerged as powerful tools for learning the sequence determinants of gene expression. In this work, we both leverage these models for cis-regulatory element design and propose methods to improve their predictive capabilities. First, we explore transfer learning strategies to improve promoter-driven expression prediction, especially in data-constrained settings. After showing that these strategies can substantially improve prediction performance, we couple our sequence-based models with sequence optimizers in a novel model-based optimization workflow to design cell-type-specific promoters that are crucial for gene therapies. Crucially, this workflow accounts for practical constraints such as adversarial designs, sequence diversity, and prediction uncertainty, and improves the cell-type-specificity of most sequences in a challenging setting. Next, we explore methods to improve individual-level gene expression prediction, a task on which current sequence-based deep learning models fail. Fine-tuning on paired personal genome and transcriptome data improves predictions on held-out individuals for genes seen during training-matching baselines-but these models still fail to generalize to unseen genes. Finally, we address limitations of current splicing predictors, which do not generalize to unseen tissues or model the expression levels of trans-acting splicing factors. We propose a new sequence-based model that incorporates splicing factor expression to make tissue-specific splicing predictions, even in tissues not seen during training. This model captures some tissue-specific splicing patterns and achieves performance comparable to existing models trained directly on those tissues, highlighting the utility of incorporating regulatory context for generalization.
■590 ▼aSchool code: 0028.
■650 4▼aGenetics
■650 4▼aBiology
■650 4▼aComputer science
■653 ▼aComputational genomics
■653 ▼aGene expression prediction
■653 ▼aSequence design
■653 ▼aSequence-based models
■653 ▼aSplicing prediction
■653 ▼aTransfer learning
■690 ▼a0800
■690 ▼a0369
■690 ▼a0306
■690 ▼a0984
■71020▼aUniversity of California, Berkeley▼bComputer Science.
■7730 ▼tDissertations Abstracts International▼g87-01B.
■790 ▼a0028
■791 ▼aPh.D.
■792 ▼a2025
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17357848▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.


