Pan-cancer analysis unveils the role and mechanisms of neddylation modifications in tumorigenesis

  • 0Key Laboratory of Molecular Epidemiology of Hunan Province, School of Public Health, Health Science Center, Hunan Normal University, Changsha, China.

|

|

Summary

This summary is machine-generated.

Neddylation pathway genes are often underexpressed and highly active in cancers, linked to poor patient outcomes. These ubiquitin-like modifications offer potential as cancer biomarkers and therapeutic targets.

Area Of Science

  • Oncology
  • Molecular Biology
  • Genetics

Background

  • Ubiquitin-like modifications play crucial roles in cellular processes.
  • The neddylation pathway, involving genes like RBX1, NEDD8, NAE1, UBA3, and UBE2M, is implicated in cancer development.
  • Understanding these genes' functions is vital for cancer research.

Purpose Of The Study

  • To investigate the pan-cancer roles of key neddylation pathway genes.
  • To analyze their regulatory mechanisms, prognostic value, and drug sensitivity.
  • To identify potential therapeutic targets and prognostic biomarkers.

Main Methods

  • Utilized TCGA and GTEx databases for gene expression, DNA methylation, SNVs, and CNVs data.
  • Analyzed gene expression differences between normal and tumor tissues.
  • Assessed correlations with genetic alterations, methylation, and cancer pathways.
  • Evaluated drug sensitivity using GDSC and CTRP databases.

Main Results

  • Neddylation pathway genes showed hypomethylation and overexpression across multiple cancers.
  • These alterations correlated with poor prognosis and were associated with specific genetic changes (SNVs, CNVs).
  • The genes regulate critical cancer pathways, including DNA repair, cell cycle, and RTK/RAS/MAPK signaling.

Conclusions

  • Neddylation pathway genes are frequently dysregulated in cancer, characterized by low methylation and high expression.
  • Genetic alterations in these genes impact key oncogenic pathways.
  • These genes represent promising prognostic biomarkers and potential therapeutic targets in pan-cancer treatment.

Related Concept Videos

Non-Canonical Wnt Signaling Pathways 01:41

7.2K

Wnt is a zygotic effect gene that is expressed during very early embryonic development. It regulates various processes in animals starting from early development through the adult stage, such as organogenesis in the embryo and maintenance of neuronal and blood stem cells. Wnt proteins can induce a wide variety of intracellular pathways depending upon the specific abilities of different Wnt ligands to form a complex with shared and cognate receptors in the presence of different co-receptors. The...

Adaptive Mechanisms in Cancer Cells 02:53

5.7K

Cancer cells accumulate genetic changes at an abnormally rapid rate due to the defects in the DNA repair mechanisms. From an evolutionary perspective, such genetic instability is advantageous for cancer development. Mutant cell lines accumulate a series of beneficial mutations that contribute to their progression into cancer.
Some of the advantages that cancer cells have on normal cells include - enhanced ability to divide without terminally differentiating, induce new blood vessel formation,...

Abnormal Proliferation 02:23

4.4K

Under normal conditions, most adult cells remain in a non-proliferative state unless stimulated by internal or external factors to replace lost cells. Abnormal cell proliferation is a condition in which the cell's growth exceeds and is uncoordinated with normal cells. In such situations, cell division persists in the same excessive manner even after cessation of the stimuli, leading to persistent tumors. The tumor arises from the damaged cells that replicate to pass the damage to the...

Loss of Tumor Suppressor Gene Functions 01:12

4.7K

Tumor suppressor genes are normal genes that can slow down cell division, repair DNA mistakes, or program the cells for apoptosis in case of irreparable damage. Hence, they play an essential role in preventing the proliferation of damaged cells.
When the tumor suppressor genes develop mutations or are lost, cells start growing out of control, leading to cancer. However, a single functional copy of the tumor suppressor gene is enough for the cells to maintain their normal functions and cell...

Epigenetic Regulation 01:37

3.0K

Epigenetic changes alter the physical structure of the DNA without changing the genetic sequence and often regulate whether genes are turned on or off. This regulation ensures that each cell produces only proteins necessary for its function. For example, proteins that promote bone growth are not produced in muscle cells. Epigenetic mechanisms play an essential role in healthy development. Conversely, precisely regulated epigenetic mechanisms are disrupted in diseases like cancer.
X-chromosome...

Canonical Wnt Signaling Pathway 02:54

8.6K

The gene encoding the main signaling molecules of the Wnt signaling pathways (the Wnt proteins) was discovered almost four decades ago by Nüsslein-Volhard and Wieschaus. They identified and originally named the gene "wingless" (wg) after a phenotype discovered during their landmark genetic screen in Drosophila for body pattern defects. At around the same time, another researcher named Harold Varmus found that a murine tumor virus activates the mammalian wg homolog, Int-1, which...