Dynamics of p14ARF and Focal Adhesion Kinase-Mediated Autophagy in Cancer

Rosa Fontana1, Maria Vivo2

  • 1Department of Biology, University of Naples Federico II, 80126 Naples, Italy. Rosa.fontana90@gmail.com.

Cancers
|July 4, 2018
PubMed

Insights

Focal adhesion kinase (FAK) and p14ARF (alternative reading frame) regulate autophagy, a cellular recycling process. This review explores their roles in cancer cell survival, migration, and spreading, crucial for understanding cancer development.

Area of Science:

  • Oncology
  • Molecular Biology
  • Cell Biology

Background:

  • Focal adhesion kinase (FAK) is implicated in multiple cancer processes, including invasion, metastasis, and cancer stem cell maintenance.
  • p14ARF (alternative reading frame), a tumor suppressor, interacts with FAK and regulates cancer via p53-dependent and -independent pathways.
  • Both FAK and ARF, along with p53, are involved in autophagy, a cellular degradation process essential for quality control.

Purpose of the Study:

  • To review the mechanisms by which ARF and FAK regulate autophagy.
  • To examine the role of autophagy in cancer cell migration and spreading.
  • To integrate the understanding of these cellular functions in cancer development.

Main Methods:

  • Literature review of studies on FAK, p14ARF, and autophagy in cancer.
  • Analysis of molecular pathways linking FAK, ARF, and autophagy.
  • Examination of the role of autophagy in cell migration and metastasis.

Main Results:

  • FAK and ARF proteins are involved in the regulation of autophagy.
  • Autophagy plays a significant role in cancer cell migration and spreading.
  • p14ARF exhibits a pro-oncogenic function in cancer cell survival.

Conclusions:

  • Understanding the interplay between ARF, FAK, and autophagy is critical for deciphering cancer cell transformation and migration.
  • Integrated investigation of these pathways offers insights into novel therapeutic strategies for cancer.

Related Concept Videos

Intracellular Signaling Affects Focal Adhesions01:17

Intracellular Signaling Affects Focal Adhesions

Integrins act both as extracellular input receivers and as intracellular processing activators. As their name suggests, integrins are entirely integrated into the membrane structure. Their hydrophobic membrane-spanning regions interact with the phospholipid bilayer's hydrophobic region. These membrane receptors provide extracellular attachment sites for effectors like hormones and growth factors. They activate intracellular response cascades when their effectors are bound and active.
Some...
3.6K
Protein Kinases and Phosphatases02:54

Protein Kinases and Phosphatases

Proteins undergo chemical modifications that trigger changes in the charge, structure, and conformation of the proteins. Phosphorylation, acetylation, glycosylation, nitrosylation, ubiquitination, lipidation, methylation, and proteolysis are various protein modifications that regulate protein activity. Such modifications are usually enzyme-driven.
Protein kinases
Many proteins in the cell are regulated by phosphorylation, the addition of a phosphate group. A family of enzymes called kinases...
15.2K
Protein Kinases and Phosphatases02:54

Protein Kinases and Phosphatases

4.5K
Adhesion01:14

Adhesion

Adhesion occurs when one type of molecule is attracted to a different molecule. Water exhibits adhesive properties in the presence of polar surfaces, such as glass or cellulose in plants. For instance, when water is poured into a glass, the positively charged hydrogen molecules of water are more attracted to the negatively charged oxygen molecules in the silica than to the oxygen in neighboring water molecules.
Capillary action is a result of water’s adhesive tendencies. When a narrow...
44.5K
Autophagy01:27

Autophagy

Autophagy is a self-digesting process by which a cell protects itself from threats both within and outside the cell, ranging from abnormal proteins to invading bacteria. In this process, obsolete components of the cell and invading microbes are degraded by hydrolytic enzymes active in an acidic environment of the lysosomal lumen.
An autophagic pathway consists of a series of signaling events activated in response to diverse stress and physiological conditions such as food deprivation,...
5.9K
Receptor Tyrosine Kinases01:26

Receptor Tyrosine Kinases

Receptor tyrosine kinases or RTKs are membrane-bound receptors that phosphorylate specific tyrosine on protein substrates. RTKs regulate cellular growth, differentiation, survival, and migration. They contain an extracellular ligand binding domain, a transmembrane domain, and a cytosolic tail with intrinsic kinase activity. Several extracellular signaling molecules activate RTKs in one or more ways and relay the signal downstream. Ligands such as platelet-derived growth factor (PDGF) or...
18.9K