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Notch Signaling Pathway

Notch Signaling Pathway

The Notch signaling pathway is a major intracellular signaling pathway that is highly conserved over a broad spectrum of metazoan species. It stands unique from other intracellular signaling mechanisms in animals because notch protein itself acts as the receptor as well as the primary signaling molecule.
The Notch gene came into the limelight in 1914 after the discovery that its mutation in Drosophila melanogaster leads to a serrated (or "notched") wing margin phenotype. It was not until 1985...

Notch Signaling Pathway

Notch Signaling Pathway

The Notch signaling pathway is a major intracellular signaling pathway that is highly conserved over a broad spectrum of metazoan species. It stands unique from other intracellular signaling mechanisms in animals because notch protein itself acts as the receptor as well as the primary signaling molecule.
The Notch gene came into the limelight in 1914 after the discovery that its mutation in Drosophila melanogaster leads to a serrated (or "notched") wing margin phenotype. It was not until 1985...

The Intrinsic Apoptotic Pathway

The Intrinsic Apoptotic Pathway

Internal cellular stress, such as cellular injury or hypoxia, triggers intrinsic apoptosis. The B-cell lymphoma 2 (Bcl-2) family of proteins are the primary regulators of the intrinsic apoptotic pathway. For example, during DNA damage, checkpoint proteins, such as Ataxia Telangiectasia Mutated (ATM protein) and Checkpoints Factor-2 (Chk2) proteins, are activated. These proteins phosphorylate p53 which further activates pro-apoptotic proteins, such as Bax, Bak, PUMA, and Noxa, and inhibits...

Role Of Notch Signalling In Intestinal Stem Cell Renewal

Role Of Notch Signalling In Intestinal Stem Cell Renewal

Notch signaling was first discovered in Drosophila melanogaster, where it is involved in cell lineage differentiation. Notch signaling regulates the maintenance and differentiation of intestinal stem cells or ISCs by controlling the expression of atonal homolog 1 or Atoh1. Atoh1 directs cells to differentiate into secretory cells.
Direct cell-to-cell contact is needed for the activation of Notch signaling. The signal is initiated when a notch ligand binds to a receptor on an adjacent cell, also...

Apoptosis

Apoptosis

Apoptosis is a combination of two Greek words, 'apo' and 'ptosis,' meaning separation and falling off, respectively. Hippocrates used this word to describe gangrene, which was caused due to bandaging of fractured bones. Apoptosis was distinguished from necrosis in 1970 when John Kerr reported observations of morphological changes occurring during apoptosis. During one experiment, he observed that the disruption of blood supply to the liver tissue resulted in a size reduction of the tissue.

Cellular Injury V: Apoptosis and Autophagy

Cellular Injury V: Apoptosis and Autophagy

Cells respond to damage and stress through highly coordinated processes that decide whether they survive or undergo controlled self-destruction. Two major pathways involved in this regulation are apoptosis, a type of programmed cell death, and autophagy, a survival mechanism that helps cells adapt to adverse conditions.ApoptosisApoptosis removes aged or injured cells to maintain tissue balance. During this process, the cell shrinks, chromatin condenses and fragments, and membrane-bound...

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Related Experiment Video

Updated: May 24, 2026

Integration of Bioinformatics Approaches and Experimental Validations to Understand the Role of Notch Signaling in Ovarian Cancer

Integration of Bioinformatics Approaches and Experimental Validations to Understand the Role of Notch Signaling in Ovarian Cancer

Published on: January 12, 2020

Notch, apoptosis and cancer.

¹Department of Medicine, University of Virginia, Charlottesville, VA, USA. td9w@virginia.edu

Advances in Experimental Medicine and Biology

|March 9, 2012

Summary

Dysregulation of the Notch pathway impacts cell apoptosis, a key process in cancer development. This study explores Notch signaling

Area of Science:

Molecular Biology
Cancer Research
Cellular Signaling

Background:

Embryonic development and tissue homeostasis rely on regulated cell growth, differentiation, and apoptosis.
Aberrant apoptosis is a hallmark of nearly all human cancers.
The Notch pathway is crucial for cell fate determination during development and homeostasis.

Purpose of the Study:

To investigate the interaction between Notch signaling and apoptosis regulation in cancer.
To elucidate the relationship between Notch and caspase pathway activators.
To examine Notch pathway crosstalk with cell cycle, growth, survival, p53, NF-κB, and PI3K-Akt pathways.

Main Methods:

Literature review and synthesis of existing research on Notch signaling and apoptosis.

More Related Videos

Stimulation of Notch Signaling in Mouse Osteoclast Precursors

Stimulation of Notch Signaling in Mouse Osteoclast Precursors

Published on: February 28, 2017

Related Experiment Videos

Last Updated: May 24, 2026

Integration of Bioinformatics Approaches and Experimental Validations to Understand the Role of Notch Signaling in Ovarian Cancer

Integration of Bioinformatics Approaches and Experimental Validations to Understand the Role of Notch Signaling in Ovarian Cancer

Published on: January 12, 2020

Stimulation of Notch Signaling in Mouse Osteoclast Precursors

Stimulation of Notch Signaling in Mouse Osteoclast Precursors

Published on: February 28, 2017

Analysis of molecular mechanisms linking Notch to caspase activation.

Exploration of signaling network crosstalk involving Notch, p53, NF-κB, and PI3K-Akt.

Main Results:

Notch signaling dysregulation contributes to cancer development by affecting apoptosis.
Notch influences apoptosis through extensive networks regulating cell cycle, growth, and survival.
Crosstalk between Notch and pathways like p53, NF-κB, and PI3K-Akt modulates apoptosis.

Conclusions:

The Notch pathway is a significant regulator of apoptosis in the context of cancer.
Understanding Notch-mediated apoptosis and its crosstalk with other pathways is critical for cancer therapy.
Targeting Notch signaling may offer therapeutic strategies for cancers with apoptotic defects.