Related Experiment Video

Updated: Oct 3, 2025

Understanding the Changes in Mitochondrial Morphology through Dynamic and Three-dimensional Fluorescence Micrographs
08:15

Understanding the Changes in Mitochondrial Morphology through Dynamic and Three-dimensional Fluorescence Micrographs

Published on: August 15, 2025

400

Mitochondrial Fus1/Tusc2 and cellular Ca2+ homeostasis: tumor suppressor, anti-inflammatory and anti-aging

Roman Uzhachenko1, Akiko Shimamoto1,2, Sanika S Chirwa1

  • 1Department of Biochemistry, Cancer Biology, Neuroscience and Pharmacology, School of Medicine, Meharry Medical College, Nashville, TN, USA.

Cancer Gene Therapy
|February 19, 2022
PubMed

Insights

The FUS1/TUSC2 gene acts as a tumor suppressor, impacting cancer, inflammation, and aging. Its interaction with mitochondrial calcium transport maintains cellular homeostasis, crucial for its multifaceted protective roles.

Area of Science:

  • Genetics and Molecular Biology
  • Cellular Biology
  • Oncology

Background:

  • FUS1/TUSC2 (FUSion1/TUmor Suppressor Candidate 2) is a tumor suppressor gene (TSG) located in the 3p21.3 chromosomal region, frequently deleted in lung cancer.
  • Its tumor suppressor role is established in various cancers, with emerging evidence linking Fus1 to inflammation, infections, and aging-related diseases.
  • Research into FUS1's molecular mechanisms has been ongoing for two decades, leading to its exploration in clinical trials and gene therapy.

Purpose of the Study:

  • To review the discovery and 20-year research history of the FUS1 gene.
  • To elucidate the molecular, structural, and biological functions of FUS1.
  • To present a data-driven perspective on FUS1's role in cellular homeostasis and disease.

Main Methods:

  • Review of existing literature on FUS1/TUSC2 gene.
  • Analysis of FUS1's interactions with mitochondrial calcium (mitoCa2+) transport machinery.
  • Data-driven investigation of cellular homeostasis mechanisms controlled by Fus1.

Main Results:

  • FUS1/TUSC2 functions as a critical tumor suppressor gene.
  • Fus1 interacts with mitochondrial calcium transport, maintaining cellular calcium homeostasis.
  • This homeostasis is central to Fus1's tumor suppressor, anti-inflammatory, and anti-aging activities.

Conclusions:

  • FUS1/TUSC2 plays a significant role beyond cancer suppression, influencing inflammation and aging.
  • Fus1-mediated cellular homeostasis via mitochondrial calcium regulation is a key mechanism.
  • Further research into FUS1 holds promise for therapeutic applications in various diseases.

More Related Videos

Assessment of Mitochondrial Health in Cancer-Associated Fibroblasts Isolated from 3D Multicellular Lung Tumor Spheroids10:26

Assessment of Mitochondrial Health in Cancer-Associated Fibroblasts Isolated from 3D Multicellular Lung Tumor Spheroids

Published on: October 21, 2022

2.1K
Measuring Mitochondrial Function of Naïve and Effector CD8 T Cells06:07

Measuring Mitochondrial Function of Naïve and Effector CD8 T Cells

Published on: March 28, 2025

511

Related Concept Videos

Mitochondria01:37

Mitochondria

Mitochondria are eukaryotic cellular organelles that are known to produce energy through a process called oxidative phosphorylation. Besides their primary function, mitochondria are involved in various cellular processes, including cell growth, differentiation, signaling, metabolism, and senescence. Age-related changes cause a decline in mitochondrial quality and integrity due to increased mitochondrial mutations and oxidative damage. Thus, aging can severely impact mitochondrial functions,...
15.4K
Electron Transport Chain: Complex I and II01:46

Electron Transport Chain: Complex I and II

The mitochondrial electron transport chain (ETC) is the main energy generation system in the eukaryotic cells. However, mitochondria also produce cytotoxic reactive oxygen species (ROS) due to the large electron flow during oxidative phosphorylation. While Complex I is one of the primary sources of superoxide radicals, ROS production by Complex II is uncommon and may only be observed in cancer cells with mutated complexes.
ROS generation is regulated and maintained at moderate levels necessary...
15.2K
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...
3.9K
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...
8.3K
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...
5.2K
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...
4.7K