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Updated: Jul 14, 2026

In Vivo Biosensor Tracks Non-apoptotic Caspase Activity in Drosophila
Published on: November 27, 2016
Proapoptotic role of novel gene-expression factors
J V Tapia-Vieyra1, P Ostrosky-Wegman, J Mas-Oliva
1Instituto de Fisiología Celular, Universidad Nacional Autónoma de México, México DF, México.
Abstract:
The mechanisms that control cellular proliferation, as well as those related with programmed cell death or apoptosis, require precise regulation systems to prevent diseases such as cancer. Events related to cellular proliferation as well as those associated with apoptosis involve the regulation of gene expression carried out by three basic genetic expression regulation mechanisms: transcription, splicing of the primary transcript for mature mRNA formation, and RNA translation, a ribosomal machinery-dependent process for protein synthesis. While development of each one of these processes requires energy for recognition and assembly of a number of molecular complexes, it has been reported that an increased expression of several members of these protein complexes promotes apoptosis in distinct cell types. The question of how these factors interact with other proteins in order to incorporate themselves into the different transduction cascades and stimulate the development of programmed cell death, although nowadays actively studied, is still waiting for a clear-cut answer. This review focuses on the interactions established between different families of transcription, elongation, translation and splicing factors associated to the progression of apoptosis.
Insights
Cellular proliferation and apoptosis are tightly regulated by gene expression mechanisms. This review explores how transcription, splicing, and translation factors interact to influence programmed cell death.
Area of Science:
- Molecular Biology
- Cell Biology
- Genetics
Background:
- Cellular proliferation and programmed cell death (apoptosis) are fundamental biological processes crucial for preventing diseases like cancer.
- Precise regulation of gene expression, involving transcription, splicing, and translation, is essential for controlling these cellular events.
- While the roles of protein complexes in apoptosis are recognized, their specific interactions within signal transduction pathways remain an active area of research.
Purpose of the Study:
- To review the interactions between transcription, elongation, translation, and splicing factors.
- To elucidate the involvement of these factors in the progression of apoptosis.
- To provide insights into the molecular mechanisms underlying programmed cell death.
Main Methods:
- Literature review focusing on interactions of gene expression factors with apoptosis.
- Analysis of studies investigating the roles of transcription, splicing, and translation machinery in programmed cell death.
- Synthesis of current knowledge on protein complex involvement in apoptotic pathways.
Main Results:
- Several members of transcription, splicing, and translation machinery complexes have been reported to promote apoptosis upon increased expression.
- These factors interact with other proteins to integrate into signal transduction cascades that drive programmed cell death.
- The precise mechanisms of these interactions are still under investigation but are critical for cellular fate determination.
Conclusions:
- Transcription, splicing, and translation factors play significant roles in regulating apoptosis.
- Understanding these interactions is key to deciphering the complex pathways of programmed cell death.
- Further research into these molecular interactions may reveal novel therapeutic targets for diseases like cancer.
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