Abstract
Mammalian genetic approaches to study gene function have been hampered by the lack of tools to generate stable loss-of-function phenotypes efficiently. We report here a new vector system, named pSUPER, which directs the synthesis of small interfering RNAs (siRNAs) in mammalian cells. We show that siRNA expression mediated by this vector causes efficient and specific down-regulation of gene expression, resulting in functional inactivation of the targeted genes. Stable expression of siRNAs using this vector mediates persistent suppression of gene expression, allowing the analysis of loss-of-function phenotypes that develop over longer periods of time. Therefore, the pSUPER vector constitutes a new and powerful system to analyze gene function in a variety of mammalian cell types.
Keywords
Affiliated Institutions
Related Publications
Dicer-deficient mouse embryonic stem cells are defective in differentiation and centromeric silencing
Dicer is the enzyme that cleaves double-stranded RNA (dsRNA) into 21–25-nt-long species responsible for sequence-specific RNA-induced gene silencing at the transcriptional, post...
Maternal Embryonic Leucine Zipper Kinase/Murine Protein Serine-Threonine Kinase 38 Is a Promising Therapeutic Target for Multiple Cancers
Abstract To identify genes that could serve as targets for novel cancer therapeutics, we used a bioinformatic analysis of microarray data comparing gene expression between norma...
Frequent deletions and down-regulation of micro- RNA genes <i>miR15</i> and <i>miR16</i> at 13q14 in chronic lymphocytic leukemia
Micro-RNAs ( miR genes) are a large family of highly conserved noncoding genes thought to be involved in temporal and tissue-specific gene regulation. MiRs are transcribed as sh...
Organizing Polarized Delivery of Exosomes at Synapses
Abstract Exosomes are extracellular vesicles that transport different molecules between cells. They are formed and stored inside multivesicular bodies ( MVB ) until they are rel...
Transformation of sensory organ identity by ectopic expression of Cut in Drosophila.
The loss of cut activity results in a change in neural identity in the peripheral nervous system so that the neurons and support cells of external sensory (es) organs are transf...
Publication Info
- Year
- 2002
- Type
- article
- Volume
- 296
- Issue
- 5567
- Pages
- 550-553
- Citations
- 4288
- Access
- Closed
External Links
Social Impact
Social media, news, blog, policy document mentions
Citation Metrics
Cite This
Identifiers
- DOI
- 10.1126/science.1068999