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Alternative RNA Splicing02:18

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Alternative RNA splicing is the regulated splicing of exons and introns to produce different mature mRNAs from a single pre-mRNA. Unlike in constitutive splicing where a single gene produces a single type of mRNA, alternative splicing allows an organism to produce multiple proteins from a single gene and plays an important role in protein diversity.
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Splicing is the process by which eukaryotic RNA is edited before its translation into protein. The RNA strand transcribed from eukaryotic DNA is called the primary transcript. The primary transcripts that become mRNAs are called precursor messenger RNAs (pre-mRNAs). Eukaryotic pre-mRNA contains alternating sequences of exons and introns. Exons are nucleotide sequences that code for proteins, whereas introns are the non-coding regions. In RNA splicing, introns are removed and exons are bonded...
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Updated: Jun 2, 2025

Engineering Artificial Factors to Specifically Manipulate Alternative Splicing in Human Cells
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Engineering Artificial Factors to Specifically Manipulate Alternative Splicing in Human Cells

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Splicing to orchestrate cell fate.

Xurui Zhang1, Zhonghao Guo1, Yachen Li1

  • 1Department of Cell Biology and Genetics, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an 710061, P.R. China.

Molecular Therapy. Nucleic Acids
|January 15, 2025
PubMed
Summary
This summary is machine-generated.

Alternative splicing (AS) diversifies proteins and regulates cell fate, impacting cell cycles, differentiation, and programmed cell death. Targeting aberrant splicing offers therapeutic potential for diseases like cancer.

Keywords:
MT: Bioinformaticsalternative splicingapoptosiscell cyclecell differentiationneurogenesistumorigenesis

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Area of Science:

  • Molecular Biology
  • Genetics
  • Cell Biology

Background:

  • Alternative splicing (AS) is a key mechanism for generating protein diversity from a single gene.
  • Understanding AS's role in cellular processes is crucial for comprehending gene expression regulation.

Purpose of the Study:

  • To provide a comprehensive review of alternative splicing's role in regulating cell fate.
  • To highlight AS's involvement in cell proliferation, differentiation, apoptosis, and tumorigenesis.

Main Methods:

  • Literature review synthesizing recent findings on alternative splicing.
  • Analysis of AS's impact on cell cycle stages (G1, S, G2/M).
  • Examination of AS in stem cell differentiation (mesenchymal, neurogenesis) and lineage commitment (adipocytes, osteoblasts, chondrocytes).

Main Results:

  • AS significantly influences cell cycle progression and differentiation pathways.
  • Aberrant AS contributes to apoptosis, pyroptosis, and cancer progression.
  • Targeting splicing mechanisms shows therapeutic promise for restoring cellular function.

Conclusions:

  • Alternative splicing is a fundamental regulator of cell fate.
  • Further research into splicing regulatory networks can uncover new therapeutic strategies for splicing-related disorders.