Dynactin 2 acts as an oncogene in hepatocellular carcinoma through promoting cell cycle progression
Contact us if these videos are not relevant.
Contact us if these videos are not relevant.
View abstract on PubMed
Summary
This summary is machine-generated.Dynactin 2 (DCTN2) is a significant prognostic factor in hepatocellular carcinoma (HCC). Upregulated DCTN2 predicts poor survival and promotes HCC progression by driving cell cycle advancement.
Area Of Science
- Molecular Biology
- Oncology
- Cell Biology
Background
- Dynactin (DCTN) family members are involved in intracellular transport and have been implicated in various cancers.
- The specific roles and prognostic significance of DCTN family members in hepatocellular carcinoma (HCC) remain largely unexplored.
Purpose Of The Study
- To investigate the diagnostic and prognostic implications of DCTN subunits in HCC.
- To validate bioinformatics findings with experimental data.
Main Methods
- Bioinformatics analysis of DCTN subunits in HCC.
- Validation using Western blot and quantitative reverse transcription-polymerase chain reaction (qRT-PCR).
- Functional assays involving DCTN2 knockdown in HCC cell lines (Huh7 and Hep3B).
Main Results
- DCTN2 was identified as a significant prognostic factor in HCC, with high expression correlating with poor patient survival.
- DCTN2 expression was upregulated in HCC cell lines at both protein and mRNA levels.
- Knockdown of DCTN2 reduced proliferation, invasion, and migration while enhancing apoptosis in HCC cells, indicating its role as an oncogene.
Conclusions
- DCTN2 serves as a potential prognostic marker for HCC.
- DCTN2 promotes HCC progression by facilitating cell cycle progression via the G1/S phase signaling pathway.
Contact us if these videos are not relevant.
Contact us if these videos are not relevant.
Related Concept Videos
The orderly progression of the cell cycle depends on the activation of Cdk protein by binding to its cyclin partner. However, the cell cycle must be restricted when undergoing abnormal changes. Most cancers correlate to the deregulated cell cycle, and since Cdks are a central component of the cell cycle, Cdk inhibitors are extensively studied to develop anticancer agents. For instance, cyclin D associates with several Cdks, such as Cdk 4/6, to form an active complex. The cyclin D-Cdk4/6 complex...
Checkpoints throughout the cell cycle serve as safeguards and gatekeepers, allowing the cell cycle to progress in favorable conditions and slow or halt it in problematic ones. This regulation is known as the cell cycle control system.
Cyclin-dependent kinases, or Cdks, work in concert with cyclins to control cell cycle transitions. M-Cdk, a complex of Cdk1 bound to M cyclin, is a well-known example of this coordinated control that drives the transition from the G2 to the M phase.
M cyclin...
Genes usually encode proteins necessary for the proper functioning of a healthy cell. Mutations can often cause changes to the gene expression pattern, thereby altering the phenotype.
When the function of certain critical genes, especially those involved in cell cycle regulation and cell growth signaling cascades, gets disrupted, it upsets the cell cycle progression. Such cells with unchecked cell cycles start proliferating uncontrollably and eventually develop into tumors.
Such genes that act...
Mitogens and their receptors play a crucial role in controlling the progression of the cell cycle. However, the loss of mitogenic control over cell division leads to tumor formation. Therefore, mitogens and mitogen receptors play an important role in cancer research. For instance, the epidermal growth factor (EGF) - a type of mitogen and its transmembrane receptor (EGFR), decides the fate of the cell's proliferation. When EGF binds to EGFR, a member of the ErbB family of tyrosine kinase...
The mammalian target of rapamycin or mTOR protein was discovered in 1994 due to its direct interaction with rapamycin. The protein gets its name from a yeast homolog called TOR. The mTOR protein complex in mammalian cells plays a major role in balancing anabolic processes such as the synthesis of proteins, lipids, and nucleotides and catabolic processes, such as autophagy in response to environmental cues, such as availability of nutrients and growth factors.
The mTOR pathway or the...
Mitotic cell division results in daughter cells that exactly resemble the parent cell. However, errors in the DNA replication or distribution of genetic material may lead to genetic mutations that may be passed down to every new cell formed from the resulting abnormal cell. Propagation of such mutant cells is restricted through checkpoint mechanisms present at different stages of the cell cycle. These checkpoints involve regulator molecules that either promote or demote cell cycle events.