Related Experiment Video
Updated: Aug 24, 2025

04:49
Author Spotlight: Investigating the Mechanisms and Inducing Models of Polycystic Ovary Syndrome
Published on: July 5, 2024
1.2K
Posttranslational modifications in pathogenesis of PCOS.
Huimei Wei1, Peng Huo2, Shun Liu3
1Reproductive Hospital of Guangxi Zhuang Autonomous Region, Nanning, China.
Frontiers in Endocrinology
|October 24, 2022
Summary
Polycystic ovary syndrome (PCOS) is linked to altered protein modifications. Understanding phosphorylation, methylation, acetylation, and ubiquitination in PCOS may reveal new therapeutic targets.
Area of Science:
- Endocrinology
- Molecular Biology
- Genetics
Background:
- Polycystic ovary syndrome (PCOS) affects 5-18% of women, presenting as a complex disorder with reproductive, metabolic, and psychiatric components.
- PCOS is associated with increased risks of type 2 diabetes, psychiatric conditions, and gynecological cancers.
- Posttranslational modifications (PTMs) are crucial for protein function and cellular processes; their dysregulation is implicated in disease development.
Purpose of the Study:
- To review the current understanding of PTMs in PCOS.
- To explore the roles and molecular mechanisms of specific PTMs (phosphorylation, methylation, acetylation, ubiquitination) in PCOS pathogenesis.
- To summarize therapeutic strategies targeting PTMs in PCOS.
Main Methods:
- Literature review of research on PTMs in PCOS.
- Analysis of molecular mechanisms linking PTMs to PCOS development.
- Summary of clinical trials and therapeutic agents targeting PTMs.
Main Results:
- Growing evidence supports a strong association between PCOS and PTMs.
- Phosphorylation, methylation, acetylation, and ubiquitination are identified as key PTMs involved in PCOS.
- Specific molecular pathways and mechanisms are being elucidated.
Conclusions:
- PTMs play a significant role in the pathophysiology of PCOS.
- Targeting PTMs offers promising avenues for future PCOS research and treatment development.
- Further investigation into PTMs can lead to novel therapeutic interventions for PCOS.
Related Concept Videos
Covalently Linked Protein Regulators
6.9K
Proteins can undergo many types of post-translational modifications, often in response to changes in their environment. These modifications play an important role in the function and stability of these proteins. Covalently linked molecules include functional groups, such as methyl, acetyl, and phosphate groups, and also small proteins, such as ubiquitin. There are around 200 different types of covalent regulators that have been identified.
These groups modify specific amino acids in a protein....
These groups modify specific amino acids in a protein....
6.9K
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
Regulation of Expression at Multiple Steps
977
The gene expression in cells is regulated at different stages: (i) transcription, (ii) RNA processing, (iii) RNA localization, and (iv) translation. Transcriptional regulation is mediated by regulatory proteins such as transcription factors, activators, or repressors—these control gene expression by initiating or inhibiting the transcription of genes. Once a precursor or pre-mRNA is produced, it undergoes post-transcriptional modification, including 5' capping, splicing, and the...
977
Protein Glycosylation
7.2K
Glycosylation, the most common post-translational modification for proteins, serves diverse functions. Adding sugars to proteins makes the proteins more resistant to proteolytic digestion. Glycosylated proteins can act as markers and receptors to promote cell-cell adhesion. Additionally, they have many essential quality control functions in the cell, such as correct protein folding and facilitating transport of misfolded proteins to the cytosol, which can be degraded.
Glycosylation occurs in...
Glycosylation occurs in...
7.2K
Protein Modifications in the RER
5.5K
Modification of secretory and transmembrane proteins entering the rough ER begins in the ER lumen. These modifications aid in protein folding and stabilize the acquired tertiary structure. Protein modifications in the rough ER co-occur at different stages of protein folding.
Broadly, these modifications can be categorized into four main categories — glycosylation, formation of disulfide bonds, assembly of protein subunits, and specific proteolytic cleavages like removal of signal...
Broadly, these modifications can be categorized into four main categories — glycosylation, formation of disulfide bonds, assembly of protein subunits, and specific proteolytic cleavages like removal of signal...
5.5K
Regulation of Expression Occurs at Multiple Steps
23.0K
Gene expression can be regulated at almost every step from gene to protein. Transcription is the step that is most commonly regulated. This involves the binding of proteins to short regulatory sequences on the DNA. This association can either promote or inhibit the transcription of a gene associated with the respective sequence.
Transcription results in the generation of precursor (pre-mRNA) that consists of both exons and introns, which needs further processing before being translated to a...
Transcription results in the generation of precursor (pre-mRNA) that consists of both exons and introns, which needs further processing before being translated to a...
23.0K

