Details for: COL1A2 AS1

Gene ID: 101927525

Gene Type:  ncRNA (Non-coding RNA)  - A functional RNA molecule that is transcribed from DNA but not translated into a protein. Includes classes like miRNA and lncRNA.

Symbol: COL1A2 AS1

Ensembl ID: ENSG00000285090

Description: COL1A2 antisense RNA 1

Selected Context(s):  Overall

Cell Significance Landscape

Contexts:

Significant Cells

Cell Significance Index (CSI) scores for the chosen context(s)

  • mesothelial cell CL0000077
    CSI 6.31
    rCSI 24.66%
    PRS 91.88
  • hepatic stellate cell CL0000632
    CSI 4.19
    rCSI 15.68%
    PRS 96.84
  • alveolar type 1 fibroblast cell CL4028004
    CSI 3.1
    rCSI 3.39%
    PRS 98.6

Cell ID: Standard Cell Ontology term used for mapping and comparing cells across experiments. Ensures consistency in analyzing cellular functions across tissues.
Fold Change: Represents the ratio of the current Cell Significance Index to the Cell Significance Index Threshold, indicating how much the gene expression has changed compared to a baseline.
Cell Significance Index: Reflects how strongly a gene is expressed in this specific cell.

Cell ID: Standard Cell Ontology term used for mapping and comparing cells across experiments. Ensures consistency in analyzing cellular functions across tissues.
Fold Change: Represents the ratio of the current Cell Significance Index to the Cell Significance Index Threshold, indicating how much the gene expression has changed compared to a baseline.
Cell Significance Index: Reflects how strongly a gene is expressed in this cell type. Calculated using techniques like effect size estimation and bootstrapping for reliability.

Cell ID: Standard Cell Ontology term used for mapping and comparing cells across experiments. Ensures consistency in analyzing cellular functions across tissues.
Fold Change: Represents the ratio of the current Cell Significance Index to the Cell Significance Index Threshold, indicating how much the gene expression has changed compared to a baseline.
Cell Significance Index: Reflects how strongly a gene is expressed in this cell type. Calculated using techniques like effect size estimation and bootstrapping for reliability.
Network Configuration

Explore relationships of the current gene. Select an Interaction Source: 'ONTOLOGY' for shared pathways (GO/Reactome) or 'STRING' for protein-protein interactions. Further refine by selecting context genes and comparing Cell Significance Index (CSI) scores between baseline and target cell types and their specific contexts.

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  • Node Color (Target Cell CSI, relative to current network):
    • Very High
    • High
    • Medium
    • Low
    • Very Low
    • CSI N/A
  • Node Size: Proportional to Target Cell CSI magnitude
  • STRING PPI Edge
  • Shared Pathway Edge (ONTOLOGY)

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Other Information

This section provides additional information about the gene, including a description generated by an AI language model and details about associated proteins.

## Summary [COL1A2 AS1](/details-gene/101927525) is a non-coding antisense RNA located on chromosome 7. Its expression profile indicates a highly specific role in mesenchymal-derived cell types responsible for producing and remodeling the extracellular matrix. **Overall**, it shows the most significant expression in the [mesothelial cell](/details-cell/CL0000077), [hepatic stellate cell](/details-cell/CL0000632), and [alveolar type 1 fibroblast cell](/details-cell/CL4028004). This pattern suggests a potential function in regulating tissue homeostasis, wound healing, and pathological processes such as fibrosis. ## Cellular Roles and Expression Landscape The expression of [COL1A2 AS1](/details-gene/101927525) is predominantly associated with stromal and structural cells. The highest significance score (CSI: 6.31) is observed in the [mesothelial cell](/details-cell/CL0000077), which forms the lining of serous cavities and is involved in tissue repair and fibrotic responses. Its high significance in the [hepatic stellate cell](/details-cell/CL0000632) (CSI: 4.19) and [alveolar type 1 fibroblast cell](/details-cell/CL4028004) (CSI: 3.10) further reinforces this association, as these cells are the primary drivers of collagen deposition in the liver and lungs, respectively, particularly during fibrotic disease. The collective data points to a specialized role for [COL1A2 AS1](/details-gene/101927525) in the biology of key fibrogenic cell populations across different organs. ## Pathways and Molecular Function While detailed functional annotations for [COL1A2 AS1](/details-gene/101927525) were not provided in the dataset, its designation as an antisense transcript to the `COL1A2` gene provides strong clues to its putative function. The `COL1A2` gene encodes the pro-alpha2 chain of type I collagen, a fundamental component of connective tissues. Antisense non-coding RNAs often regulate the expression of their sense-strand counterparts through various mechanisms, including transcriptional interference, mRNA stability modulation, or chromatin remodeling. Therefore, [COL1A2 AS1](/details-gene/101927525) is likely involved in the fine-tuning of type I collagen production, a process critical for maintaining tissue integrity and responding to injury. ## Research Directions The specific expression of [COL1A2 AS1](/details-gene/101927525) in key fibrogenic cells makes it a compelling subject for further investigation, particularly in the context of fibrotic diseases. ### Proposed Hypotheses 1. [COL1A2 AS1](/details-gene/101927525) acts as a negative regulator of `COL1A2` expression. In healthy tissues, it may function to prevent excessive collagen deposition by suppressing `COL1A2` transcription or degrading its mRNA. Loss of [COL1A2 AS1](/details-gene/101927525) expression or function during injury could therefore contribute to the onset of fibrosis. 2. Alternatively, [COL1A2 AS1](/details-gene/101927525) may have a pro-fibrotic role, where its upregulation in response to tissue damage stabilizes `COL1A2` mRNA or otherwise promotes collagen synthesis, thereby driving the fibrotic process. ### Experimental Approach To test the primary hypothesis that [COL1A2 AS1](/details-gene/101927525) negatively regulates `COL1A2`, a loss-of-function study could be performed. Primary human [hepatic stellate cells](/details-cell/CL0000632) or lung fibroblasts could be cultured and treated with TGF-beta to induce a fibrotic phenotype. These cells would then be transfected with antisense oligonucleotides (ASOs) or siRNAs designed to specifically degrade [COL1A2 AS1](/details-gene/101927525). The impact of its knockdown on `COL1A2` mRNA and protein levels would be quantified by qPCR and Western blot, respectively. An increase in `COL1A2` expression upon [COL1A2 AS1](/details-gene/101927525) knockdown would support a repressive role. ### Therapeutic Potential Given its specific expression in cells that drive fibrosis and its putative role in regulating collagen synthesis, [COL1A2 AS1](/details-gene/101927525) represents a potential therapeutic target for fibrotic diseases of the liver, lung, and peritoneum. As a non-coding RNA, it is amenable to targeting with nucleic acid-based therapies like ASOs. If it is found to be a pro-fibrotic factor (hypothesis 2), a strategy of therapeutic **inhibition** could be employed to reduce excessive collagen deposition. Conversely, if it proves to be a natural anti-fibrotic regulator (hypothesis 1), therapies aimed at **activation** or stabilization of [COL1A2 AS1](/details-gene/101927525) could be developed to restore tissue homeostasis.