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Microtubules are hollow cylindrical filaments having a diameter of approximately 25 nm and a length that varies from 200 nm to 25 μm. GTP-bound tubulin subunits form αβ-heterodimers for microtubule assembly. These core building blocks interact longitudinally, polymerizing into protofilaments. The protofilaments then interact with one another through lateral bonding forces to form stable cylindrical microtubules. These cylindrical filaments are dynamic as they undergo repeated...
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Genomics is the science of genomes: it is the study of all the genetic material of an organism. In humans, the genome consists of information carried in 23 pairs of chromosomes in the nucleus, as well as mitochondrial DNA. In genomics, both coding and non-coding DNA is sequenced and analyzed. Genomics allows a better understanding of all living things, their evolution, and their diversity. It has a myriad of uses: for example, to build phylogenetic trees, to improve productivity and...
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The present-day mitochondrial and chloroplast genomes have retained some of the characteristics of their ancestral prokaryotes and also have acquired new attributes during their evolution within eukaryotic cells. Like prokaryotic genomes, mitochondrial and chloroplast genomes neither bind with histone-like proteins nor show complex packaging into chromosome-like structures, as observed in eukaryotes. Unlike mitotic cell divisions observed in eukaryotic cells, mitochondria and chloroplasts...
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Hypoxic Tumors Share Genomic Instability

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    Hypoxic tumors exhibit common genomic features like instability and altered gene copy numbers, including MYC amplification and PTEN loss across various cancer types. MicroRNA dysregulation is also a frequent characteristic in these tumors.

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    Area of Science:

    • Genomic analysis
    • Cancer research
    • Tumor biology

    Background:

    • Investigating commonalities in hypoxic tumors across diverse cancer types.
    • Examining genomic alterations associated with tumor hypoxia.
    • Assessing the prevalence of microRNA (miRNA) dysregulation in hypoxic cancers.

    Discussion:

    • Hypoxic tumors frequently display genomic instability.
    • Common genomic alterations include MYC gene amplification and PTEN loss.
    • MicroRNA dysregulation is a prevalent feature across multiple cancer types.

    Key Insights:

    • Genomic instability is a shared hallmark of hypoxic tumors.
    • Specific genetic aberrations like MYC amplification and PTEN loss are recurrent.
    • Widespread miRNA dysregulation observed in hypoxic cancers.

    Outlook:

    • Further research into the functional impact of these genomic features.
    • Potential for targeted therapies based on identified genomic alterations.
    • Exploring miRNA-based therapeutic strategies for hypoxic tumors.