Related Experiment Video
Updated: Jun 4, 2025
06:54
Evaluation of the Interplay Between the Complement Protein C1q and Hyaluronic Acid in Promoting Cell Adhesion
Published on: June 15, 2019
5.9K
Epigenetic regulation of complement C1Q gene expression
Silvia Pegoraro1, Andrea Balduit1, Alessandro Mangogna1
1Institute for Maternal and Child Health, IRCCS Burlo Garofolo, Trieste, ;Italy.
Frontiers in Immunology
|December 19, 2024
Summary
Human C1q protein, crucial for immune responses and development, shows coordinated gene expression. Epigenetic patterns vary by cell type and in cancer, revealing dynamic regulation and potential therapeutic targets.
Area of Science:
- Immunology
- Epigenetics
- Molecular Biology
Background:
- Human C1q is a key complement protein involved in immune responses, placental development, and tumorigenesis.
- C1q, encoded by C1QA, C1QB, and C1QC genes, exhibits extrahepatic expression and requires strict transcriptional regulation for local synthesis.
- Understanding C1Q transcriptional regulation is vital due to its multifaceted roles.
Purpose of the Study:
- To investigate the transcriptional regulation of Human C1Q.
- To explore potential epigenetic influences on C1Q gene expression.
- To analyze C1Q gene regulation in various cell types and tumor contexts.
Main Methods:
- In silico analysis using online tools and datasets.
- Co-expression analysis of C1QA, C1QB, and C1QC genes.
- Examination of epigenetic patterns, including histone marks and DNA methylation.
Main Results:
- Co-expression analysis confirmed tight coordination between C1QA, C1QB, and C1QC genes.
- Distinct epigenetic patterns (histone modifications, DNA methylation) were observed across different cell types expressing C1Q genes.
- Specific epigenetic landscapes and chromatin accessibility patterns were identified in tumor contexts, suggesting roles in malignancies.
Conclusions:
- Epigenetic regulation of C1Q is dynamic and cell type/tumor-specific.
- These findings provide insights into the intricate mechanisms of C1Q gene expression.
- The study lays the groundwork for targeted epigenetic modulation therapies for immune disorders and cancer.
More Related Videos
Related Concept Videos
01:27Complement System
2.3K
The complement system is a group of approximately 20 plasma proteins that strengthen the body's defenses against infections through opsonization, inflammation, and cell lysis. Opsonization involves coating pathogens with complement proteins, making them more recognizable and facilitating phagocyte engulfment. Certain complement proteins induce inflammation that attracts immune cells to the site of infection. Cell lysis involves the destruction of pathogens through the formation of a...
2.3K
01:46Epigenetic Regulation
30.9K
Epigenetic mechanisms play an essential role in healthy development. Conversely, precisely regulated epigenetic mechanisms are disrupted in diseases like cancer.
30.9K
01:28Gene Regulation in Microbial Communities: Quorum Sensing
1
Quorum sensing is a mechanism of bacterial communication that enables coordinated gene expression in response to changes in population density. This facilitates collective behaviors that enhance survival, resource acquisition, and ecological adaptation. This process relies on small signaling molecules called autoinducers that accumulate as bacterial populations grow. When a critical threshold concentration of autoinducers is reached, bacterial cells collectively modify gene expression,...
1
02:33Combinatorial Gene Control
8.3K
Combinatorial gene control is the synergistic action of several transcriptional factors to regulate the expression of a single gene. The absence of one or more of these factors may lead to a significant difference in the level of gene expression or repression.
The expression of more than 30,000 genes is controlled by approximately 2000-3000 transcription factors. This is possible because a single transcription factor can recognize more than one regulatory sequence. The specificity in gene...
The expression of more than 30,000 genes is controlled by approximately 2000-3000 transcription factors. This is possible because a single transcription factor can recognize more than one regulatory sequence. The specificity in gene...
8.3K
02:30Genomic Imprinting and Inheritance
33.2K
Diploid organisms inherit genetic material through chromosomes from both parents. Copies of the same gene are known as alleles. In most cases, both alleles are simultaneously expressed and allow various cellular processes to function optimally. If one of the alleles is missing or mutated, the expression of the other allele can compensate; however, this is not true for all genes.
The expression of some genes depends on which parent passed the gene to the offspring, through a phenomenon known as...
The expression of some genes depends on which parent passed the gene to the offspring, through a phenomenon known as...
33.2K
02:02Cis-regulatory Sequences
9.7K
Cis-regulatory sequences are short fragments of non-coding DNA that are present on the same chromosomes as the genes that they regulate. These fragments serve as binding sites for transcriptional regulators, proteins that are responsible for controlling gene transcription and differential gene expression across cell types in eukaryotes. Cis-regulatory sequences can be close to the gene of interest or thousands of bases away in the DNA sequence; however, those sequences that are further away are...
9.7K