Related Experiment Video
Updated: Sep 4, 2025

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
11.1K
Cyclophilin D: Guardian or Executioner for Tumor Cells?
Ling Zhang1, Yi Liu1,2, Rou Zhou3
1School of Nursing, Jining Medical University, Jining, China.
Frontiers in Oncology
|July 21, 2022
Summary
Cyclophilin D (CypD) impacts tumor progression, promoting aerobic glycolysis but showing controversial effects on malignant traits like survival and invasion. This review explores CypD's dual role in cancer.
Area of Science:
- Mitochondrial biology
- Cancer research
- Biochemistry
Background:
- Cyclophilin D (CypD) is a mitochondrial matrix enzyme with peptide-proline cis-trans isomerase (PPIase) activity.
- CypD regulates mitochondrial permeability transition pore (mPTP) opening and cellular bioenergetics.
- Initially studied for its role in cell death, CypD's function in tumors is now debated.
Purpose of the Study:
- To review the biological functions of Cyclophilin D (CypD).
- To elucidate the relationship between CypD and tumor progression.
- To focus on the controversial and dual role of CypD in various cancers.
Main Methods:
- Literature review of recent studies on CypD and cancer.
- Analysis of CypD's impact on tumor cell aerobic glycolysis.
- Examination of conflicting data regarding CypD's influence on tumor survival, invasion, and drug resistance.
Main Results:
- CypD promotes aerobic glycolysis in tumor cells.
- CypD's role in tumor cell survival, invasion, and drug resistance remains controversial.
- Evidence suggests a dual role for CypD in tumor progression.
Conclusions:
- Cyclophilin D exhibits complex functions in cancer.
- Understanding CypD's dual role is crucial for cancer therapy development.
- Further research is needed to clarify CypD's precise impact on malignant characteristics.
Related Concept Videos
Inhibition of Cdk Activity
4.9K
The orderly progression of the cell cycle depends on the activation of Cdk protein by binding to its cyclin partner. However, the cell cycle must be restricted when undergoing abnormal changes. Most cancers correlate to the deregulated cell cycle, and since Cdks are a central component of the cell cycle, Cdk inhibitors are extensively studied to develop anticancer agents. For instance, cyclin D associates with several Cdks, such as Cdk 4/6, to form an active complex. The cyclin D-Cdk4/6 complex...
4.9K
mTOR Signaling and Cancer Progression
3.9K
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...
The mTOR pathway or the...
3.9K
Positive Regulator Molecules
5.6K
Mitotic cell division results in daughter cells that exactly resemble the parent cell. However, errors in the DNA replication or distribution of genetic material may lead to genetic mutations that may be passed down to every new cell formed from the resulting abnormal cell. Propagation of such mutant cells is restricted through checkpoint mechanisms present at different stages of the cell cycle. These checkpoints involve regulator molecules that either promote or demote cell cycle events.
5.6K
Abnormal Proliferation
4.6K
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...
4.6K
Anaphase Promoting Complex
2.9K
The stepwise destruction of specific proteins is necessary for the progression and completion of the cell cycle. Such proteins are ubiquitinated by ubiquitin ligases and then subsequently destroyed by the proteasome. The SCF (Skp1/Cullin/F-box) and the anaphase-promoting complex (APC) are two important ubiquitin ligases involved in cell cycle progression. While SCF is active throughout the cell cycle, APC gets activated during metaphase to anaphase transition. Cdc20 or Cdh1 binds to APC and...
2.9K
M-Cdk Drives Transition Into Mitosis
5.7K
Checkpoints throughout the cell cycle serve as safeguards and gatekeepers, allowing the cell cycle to progress in favorable conditions and slow or halt it in problematic ones. This regulation is known as the cell cycle control system.
Cyclin-dependent kinases, or Cdks, work in concert with cyclins to control cell cycle transitions. M-Cdk, a complex of Cdk1 bound to M cyclin, is a well-known example of this coordinated control that drives the transition from the G2 to the M phase.
M cyclin...
Cyclin-dependent kinases, or Cdks, work in concert with cyclins to control cell cycle transitions. M-Cdk, a complex of Cdk1 bound to M cyclin, is a well-known example of this coordinated control that drives the transition from the G2 to the M phase.
M cyclin...
5.7K

