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lncRNA - Long Non-coding RNAs02:39

lncRNA - Long Non-coding RNAs

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In humans, more than 80% of the genome gets transcribed. However, only around 2% of the genome codes for proteins. The remaining part produces non-coding RNAs which includes ribosomal RNAs, transfer RNAs, telomerase RNAs, and regulatory RNAs, among other types. A large number of regulatory non-coding RNAs have been classified into two groups depending upon their length – small non-coding RNAs, such as microRNA, which are less than 200 nucleotides in length, and long non-coding RNA...
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MicroRNA (miRNA) are short, regulatory RNA transcribed from introns (non-coding regions of a gene) or intergenic regions (stretches of DNA present between genes). Several processing steps are required to form biologically active, mature miRNA. The initial transcript, called primary miRNA (pri-mRNA), base-pairs with itself, forming a stem-loop structure. Within the nucleus, an endonuclease enzyme, called Drosha, shortens the stem-loop structure into hairpin-shaped pre-miRNA. After the pre-miRNA...
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The nucleolus is the most prominent substructure of the nucleus. When it was first discovered, it was considered to be an isolated organelle that forms fibrils and granules. In 1931, the relationship between the nucleolus and chromosomes was first described by Heitz. He observed that the appearance and size of nucleolus varies depending on the stage of the cell cycle. He also noticed constricted regions on different chromosomes clustered together at definite cell cycle stages. These regions,...
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Author Spotlight: Tracing the Ferroptotic Signatures and Cell Death Dynamics in Medulloblastoma for Advanced Therapeutics
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Deciphering the mechanisms of long non-coding RNAs in ferroptosis: insights into its clinical significance in cancer

Shengming Ou1, Xiaoya Nie1, Xiangyu Qiu1

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Long non-coding RNAs (lncRNAs) regulate ferroptosis, a cell death pathway impacting inflammation and cancer. This study explores lncRNA mechanisms in these diseases, assessing their therapeutic potential.

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Area of Science:

  • Biochemistry
  • Molecular Biology
  • Genetics

Background:

  • Ferroptosis is an iron-dependent cell death pathway triggered by lipid peroxidation.
  • Dysregulation of ferroptosis is implicated in various pathologies, including cancer and inflammation.
  • Long non-coding RNAs (lncRNAs) are emerging regulators of gene expression with roles in cellular processes.

Purpose of the Study:

  • To investigate the mechanisms by which lncRNAs regulate ferroptosis in the context of inflammation and cancer immunity.
  • To evaluate the potential of lncRNAs as therapeutic targets for cancer and inflammatory diseases.

Main Methods:

  • Literature review and analysis of existing studies on lncRNAs, ferroptosis, inflammation, and cancer immunity.
  • Bioinformatic analysis of lncRNA expression patterns and their correlation with ferroptosis-related genes.
  • Exploration of molecular pathways through which lncRNAs modulate ferroptosis.

Main Results:

  • LncRNAs can directly or indirectly modulate ferroptosis-related genes, influencing cancer progression and inflammatory responses.
  • Specific lncRNAs have been identified that play critical roles in the ferroptosis network.
  • Evidence suggests lncRNAs can impact cancer immunity by altering the tumor microenvironment through ferroptosis modulation.

Conclusions:

  • LncRNAs represent a significant regulatory layer in ferroptosis, impacting inflammation and cancer.
  • Understanding lncRNA-mediated ferroptosis mechanisms is crucial for developing novel therapeutic strategies.
  • LncRNAs hold promise as biomarkers and therapeutic targets for cancer and inflammatory diseases, though further research is needed to overcome challenges.