What is a miR mimic?
The miRNA mimic technology (miR-Mimic) is an innovative approach for gene silencing. Once introduced into cells, this RNA fragment, mimicking an endogenous miRNA, can bind specifically to its target gene and produce posttranscriptional repression, more specifically translational inhibition, of the gene.
What is miRNA sponge?
The microRNA (miRNA) “sponge” method was introduced three years ago as a means to create continuous miRNA loss of function in cell lines and transgenic organisms. Sponge RNAs contain complementary binding sites to a miRNA of interest, and are produced from transgenes within cells.
What is miRNA PPT?
Introduction • MiRNAs are non-coding RNAs found only in eukaryotic cells. • Small in size with an average length of 22 nucleotides. • Transcribed by RNA polymerase II from independent genes or introns of protein-coding genes • They play important gene-regulatory roles in both plants and animals.
What is a molecular sponge?
These sponges are designed to capture particular microRNA molecules, thus inhibiting their action on target molecules.” Using this novel technique, scientist from all fields can now investigate the action of all kinds of microRNAs in living animals.
Where is miR-7 expressed?
Expressively, miR-7, encoded by three genes located different chromosomes, is dominantly expressed in neurons with sensory or neurosecretory. Moreover, the expression of miR-7 is regulated at three levels including gene transcription, process of primary and precursor sequence and formation of mature sequence.
Does miR-7 play a role in gastric cancer?
miR-7 inhibits cellular growth and glucose metabolism in gliomas, at least partially, by regulating the IGF-1R/Akt signaling pathway. data suggested that miR-7 mediated small cell lung cancer chemoresistance by repressing MRP1/ABCC1 miR-7 may serve as an important regulator in gastric cancer development and progression.
How does miR-7 target nf90?
The miR-7 suppresses NF90 at the protein level through the binding of miR-7 to the complementary site of the seed sequence in the coding region of the NF90 mRNA. TYRO3 is upregulated in colorectal cancer cells and is a direct target gene of miR-7.
How does miR-7 regulate the Nrf2 pathway?
These findings point to a new mechanism by which miR-7 exerts cytoprotective effects by regulating the Nrf2 pathway. Down-regulation of miR-7 is associated with triple-negative breast cancer. miR-7 expression reduced SMARCD1 protein expression in lung cancer cell lines.