FIP200, a key signaling node to coordinately regulate various cellular processes

Boyi Gan1, Jun-Lin Guan

  • 1Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, United States.

Cellular Signalling
|November 27, 2007
PubMed

Insights

FIP200 is a key signaling protein regulating cellular processes. Understanding its functions and interactions offers potential new cancer therapies.

Area of Science:

  • Cell Biology
  • Molecular Biology
  • Biochemistry

Background:

  • Cellular processes require coordinated regulation of signaling pathways.
  • Dysregulation of these pathways is linked to diseases like cancer.
  • FIP200 has emerged as a critical signaling component.

Purpose of the Study:

  • To review the cellular functions of FIP200.
  • To explore FIP200's interactions with other proteins.
  • To discuss FIP200's roles in embryogenesis and cancer.

Main Methods:

  • Literature review of recent studies on FIP200.
  • Analysis of FIP200's involvement in signaling pathways.
  • Synthesis of data on FIP200's function in development and disease.

Main Results:

  • FIP200 coordinates diverse cellular events through multiple pathway interactions.
  • FIP200 plays significant roles in both normal embryogenesis and cancer development.
  • Identification of FIP200 interacting proteins is crucial for understanding its functions.

Conclusions:

  • FIP200 is a central regulator of cellular events.
  • Further research into FIP200 function may reveal therapeutic targets for cancer.
  • Understanding FIP200's network is key to addressing diseases linked to signaling dysregulation.

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...
Phosphoinositides and PIPs01:42

Phosphoinositides and PIPs

Phosphoinositides are a group of phospholipids containing a glycerol backbone with two fatty acid chains and a phosphate attached to a myoinositol sugar ring. The inositol head group extends into the cytoplasm, where it is modified by adding phosphate groups to form phosphatidylinositol phosphates or PIPs.
Different phosphoinositides are synthesized and recruited on the cytosolic face of the plasma membrane. The localization of specific phosphoinositides concentrated in separate membrane...
Interactions Between Signaling Pathways01:19

Interactions Between Signaling Pathways

Signaling cascades usually lack linearity. Multiple pathways interact and regulate one another, allowing cells to integrate and respond to diverse environmental stimuli.
Convergence and divergence, and cross-talk between signaling pathways
Two distinct signaling pathways can converge on a single functional unit, which may either be a single protein or a complex of proteins. The response is either functionally distinct or synergistic between the two pathways but different from the response...
IP3/DAG Signaling Pathway01:11

IP3/DAG Signaling Pathway

Membrane lipids such as phosphatidylinositol (PI) are precursors for several membrane-bound and soluble second messengers. Specific kinases phosphorylate PI and produce phosphorylated inositol phospholipids. One such inositol phospholipids are the  phosphatidylinositol-4,5 bisphosphate [PI(4,5)P2], present in the inner half of the lipid bilayer. Upon ligand binding, GPCR stimulates Gq proteins to turn on phospholipase Cꞵ. Activated phospholipase Cꞵ cleaves PI(4,5)P2 and produces two-second...
Intracellular Signaling Cascades01:24

Intracellular Signaling Cascades

Once a ligand binds to a receptor, the signal is transmitted through the membrane and into the cytoplasm. The continuation of a signal in this manner is called signal transduction. Signal transduction only occurs with cell-surface receptors, which cannot interact with most components of the cell, such as DNA. Only internal receptors can interact directly with DNA in the nucleus to initiate protein synthesis. When a ligand binds to its receptor, conformational changes occur that affect the...
Intracellular Signaling Cascades01:24

Intracellular Signaling Cascades

Once a ligand binds to a receptor, the signal is transmitted through the membrane and into the cytoplasm. The continuation of a signal in this manner is called signal transduction. Signal transduction only occurs with cell-surface receptors, which cannot interact with most components of the cell, such as DNA. Only internal receptors can interact directly with DNA in the nucleus to initiate protein synthesis. When a ligand binds to its receptor, conformational changes occur that affect the...