Related Experiment Video

Updated: Jun 27, 2026

Through the Looking Glass: Time-lapse Microscopy and Longitudinal Tracking of Single Cells to Study Anti-cancer Therapeutics
06:00

Through the Looking Glass: Time-lapse Microscopy and Longitudinal Tracking of Single Cells to Study Anti-cancer Therapeutics

Published on: May 14, 2016

Control of cell proliferation and apoptosis by mob as tumor suppressor, mats

Zhi-Chun Lai1, Xiaomu Wei, Takeshi Shimizu

  • 1Department of Biology, The Pennsylvania State University, University Park, PA 16802, USA. zcl1@psu.edu

Cell
|March 16, 2005
PubMed

Insights

A novel protein, Mats (Mob as tumor suppressor), inhibits cell growth and proliferation. This discovery is crucial for understanding tumor suppression and may offer new therapeutic targets for cancer.

Area of Science:

  • Cell Biology
  • Developmental Biology
  • Oncology

Background:

  • Multicellular organism size relies on regulated cell growth, proliferation, and apoptosis.
  • Dysregulation of these cellular processes is a hallmark of cancer.
  • The Large tumor suppressor (Lats)/Warts (Wts) kinase pathway is implicated in coordinating cell proliferation and apoptosis.

Purpose of the Study:

  • To identify and characterize novel proteins involved in growth control pathways.
  • To investigate the function of the Mob superfamily protein, Mats (Mob as tumor suppressor), in Drosophila.
  • To elucidate the relationship between Mats and the Wts kinase in regulating cell proliferation and apoptosis.

Main Methods:

  • Genetic analysis in Drosophila to study the function of Mats.
  • Biochemical assays to investigate the interaction and activity of Mats and Wts.
  • Functional rescue experiments using a human Mats ortholog (Mats1) in Drosophila.

Main Results:

  • Loss of Mats function in Drosophila leads to increased cell proliferation, impaired apoptosis, and tissue overgrowth.
  • Mats physically interacts with Wts, enhancing its kinase activity.
  • A human Mats ortholog (Mats1) can functionally rescue Mats-deficient Drosophila, indicating conserved function.
  • Mats1 is found to be mutated in human tumors.

Conclusions:

  • Mats acts as a critical inhibitor of cell growth and proliferation in Drosophila.
  • Mats functions in a conserved pathway with Wts to regulate organ size and prevent tissue overgrowth.
  • The findings suggest that Mats-mediated growth inhibition and tumor suppression are conserved in humans, highlighting its potential role in human cancer.

More Related Videos

Knockdown of FAM83A to Verify Its Role in Cervical Cancer Cell Growth and Cisplatin Sensitivity04:20

Knockdown of FAM83A to Verify Its Role in Cervical Cancer Cell Growth and Cisplatin Sensitivity

Published on: February 9, 2024

Intracellular Phosphoflow Cytometry of Acute Myeloid Leukemia Patient-Derived Xenotransplants07:38

Intracellular Phosphoflow Cytometry of Acute Myeloid Leukemia Patient-Derived Xenotransplants

Published on: June 6, 2025

Related Concept Videos

Abnormal Proliferation02:23

Abnormal Proliferation

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 daughter...
Loss of Tumor Suppressor Gene Functions01:12

Loss of Tumor Suppressor Gene Functions

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...
mTOR Signaling and Cancer Progression03:03

mTOR Signaling and Cancer Progression

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...
Cancer-Critical Genes II: Tumor Suppressor Genes01:05

Cancer-Critical Genes II: Tumor Suppressor Genes

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...
Loss of Tumor Suppressor Gene Functions01:12

Loss of Tumor Suppressor Gene Functions

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...
mTOR Signaling and Cancer Progression03:03

mTOR Signaling and Cancer Progression

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...