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Blood vessel formation starts early during embryonic development, around day 7. In the extraembryonic yolk sac, mesodermal precursor cells called hemangioblast proliferate and differentiate into angioblast. Angioblasts express vascular endothelial growth factor receptor 2 or VEGFR2, which binds VEGF-A, a proangiogenic factor, guiding blood vessel formation. VEGF signaling promotes angioblasts to form a blood island in the developing embryo. Angioblasts further differentiate, giving rise to...
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lncRNA - Long Non-coding RNAs02:39

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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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An Enrichment Method for Small Extracellular Vesicles Derived from Liver Cancer Tissue
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Exosome-derived noncoding RNAs: Function, mechanism, and application in tumor angiogenesis.

Kangkang Yang1, Quanbo Zhou1, Bingbing Qiao2

  • 1Department of Colorectal Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan, China.

Molecular Therapy. Nucleic Acids
|March 23, 2022
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Exosomes carrying noncoding RNAs (ncRNAs) significantly influence cancer development by regulating tumor angiogenesis. These exosome-derived ncRNAs show potential as cancer biomarkers and therapeutic targets.

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Area of Science:

  • Cell biology
  • Molecular oncology
  • Cancer research

Background:

  • Exosomes mediate intercellular communication, crucial in cancer.
  • Noncoding RNAs (ncRNAs) are stable within exosomes and implicated in cancer progression.
  • Tumor angiogenesis is a hallmark of cancer, essential for growth and metastasis.

Purpose of the Study:

  • To review the characteristics of exosomes, ncRNAs, and tumor angiogenesis.
  • To analyze the mechanisms by which exosome-derived ncRNAs impact tumor angiogenesis.
  • To highlight the role of these molecules in various cancer types and their potential clinical applications.

Main Methods:

  • Literature review and synthesis of existing research.
  • Analysis of molecular mechanisms.
  • Focus on regulatory roles in different cancer contexts.

Main Results:

  • Exosome-derived ncRNAs are key regulators of tumor angiogenesis.
  • These ncRNAs influence angiogenesis through various molecular pathways.
  • Specific roles are observed across different cancer types.

Conclusions:

  • Exosome-derived ncRNAs are critical players in tumor angiogenesis.
  • They hold significant promise as diagnostic/prognostic biomarkers for cancer.
  • These molecules represent potential therapeutic targets for cancer treatment.