The application of genome-wide RNAi screens in exploring varieties of signaling transduction pathways

Related Experiment Video

Updated: May 26, 2026

A Multiplexed Luciferase-based Screening Platform for Interrogating Cancer-associated Signal Transduction in Cultured Cells
10:13

A Multiplexed Luciferase-based Screening Platform for Interrogating Cancer-associated Signal Transduction in Cultured Cells

Published on: July 3, 2013

Shenyuan Zhang1, Hongying Zheng

  • 1Department of Systems Biology and Translational Medicine, College of Medicine, Texas A&M Healthy Science Center, Temple, TX, USA. shenyuan.zhang@medicine.tamhsc.edu

Methods in Molecular Biology (Clifton, N.J.)
|January 7, 2012
PubMed

Insights

Genome-wide RNA interference screens in Drosophila cells identify new regulators of cardiovascular development. This study focuses on cell growth, viability, and key signaling pathways like receptor tyrosine kinase and extracellular-signal-regulated kinase.

Area of Science:

  • Developmental biology
  • Cell signaling
  • Genetics

Background:

  • Cardiovascular development requires intricate coordination of cellular processes.
  • Multiple signaling pathways, including receptor tyrosine kinase (RTK) and extracellular-signal-regulated kinase (ERK) pathways, are crucial for heart formation.
  • Understanding these pathways is key to addressing congenital heart defects.

Purpose of the Study:

  • To discover novel regulators of cardiovascular development using a genome-wide approach.
  • To investigate the roles of cell growth, viability, and specific signaling pathways in heart development.
  • To leverage Drosophila as a model organism for genetic screens.

Main Methods:

  • Genome-wide RNA interference (RNAi) screens were performed in Drosophila cells.
  • The screens focused on identifying genes affecting cell growth and viability.
  • Emphasis was placed on genes involved in receptor tyrosine kinase and extracellular-signal-regulated kinase signaling.

Main Results:

  • Identification of a set of potential regulators of cardiovascular development through RNAi screening.
  • Specific genes influencing cell growth and viability were highlighted.
  • Key players in RTK and ERK signaling pathways were implicated in the developmental process.

Conclusions:

  • Genome-wide RNAi screens in Drosophila are effective for discovering novel cardiovascular development regulators.
  • Cell growth, viability, and RTK/ERK signaling are critical components of cardiovascular development.
  • Further research can elucidate the precise functions of identified genes in heart formation.

More Related Videos

Genome-Wide CRISPR Screen for Unveiling Radiosensitive and Radioresistant Genes08:32

Genome-Wide CRISPR Screen for Unveiling Radiosensitive and Radioresistant Genes

Published on: May 23, 2025

Quantitative and Automated High-throughput Genome-wide RNAi Screens in C. elegans10:58

Quantitative and Automated High-throughput Genome-wide RNAi Screens in C. elegans

Published on: February 27, 2012

Related Concept Videos

Genetic Screens02:46

Genetic Screens

Genetic screens are tools used to identify genes and mutations responsible for phenotypes of interest. Genetic screens help identify individuals or a group of people at risk of developing  genetic diseases and help them with early intervention, targeted therapy, and reproductive options.
Forward genetic screens
Forward or “classical” genetic screens involve creating random mutations in an organism’s DNA using radiation, mutagens, or insertion of additional bases, which result in visible changes...
Experimental RNAi02:15

Experimental RNAi

RNA interference (RNAi) is a cellular mechanism that inhibits gene expression by suppressing its transcription or activating the RNA degradation process. The mechanism was discovered by Andrew Fire and Craig Mello in 1998 in plants. Today, it is observed in almost all eukaryotes, including protozoa, flies, nematodes, insects, parasites, and mammals. This precise cellular mechanism of gene silencing has been developed into a technique that provides an efficient way to identify and determine the...
Ribosome Profiling02:24

Ribosome Profiling

Ribosome profiling or ribo-sequencing is a deep sequencing technique that produces a snapshot of active translation in a cell. It selectively sequences the mRNAs protected by ribosomes to get an insight into a cell’s translation landscape at any given point in time.
Applications of ribosome profiling
Ribosome profiling has many applications, including in vivo monitoring of translation inside a particular organ or tissue type and quantifying new protein synthesis levels.
The technique helps...