Details for: LINC02268

Gene ID: 101928509

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: LINC02268

Ensembl ID: ENSG00000248174

Description: long intergenic non-protein coding RNA 2268

Selected Context(s):  Overall

Cell Significance Landscape

Contexts:

Significant Cells

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

  • hepatic stellate cell CL0000632
    CSI 3.33
    rCSI 12.48%
    PRS 98.81
  • Schwann cell CL0002573
    CSI 2.64
    rCSI 7.5%
    PRS 98.16
  • cardiac muscle cell CL0000746
    CSI 1.93
    rCSI 2.77%
    PRS 97.33
  • cardiac neuron CL0010022
    CSI 1.71
    rCSI 5.47%
    PRS 98.83
  • mesothelial cell CL0000077
    CSI 1.34
    rCSI 5.24%
    PRS 96.39

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

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  • Node Color (Target Cell CSI, relative to current network):
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    • High
    • Medium
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    • 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 [LINC02268](/details-gene/101928509) is a long intergenic non-coding RNA (lncRNA) located on human chromosome 4. As a non-protein coding gene, its function is likely regulatory, influencing the expression of other genes. **Overall**, expression data reveals that [LINC02268](/details-gene/101928509) is most significantly expressed in a diverse set of specialized cell types, including [hepatic stellate cells](/details-cell/CL0000632), [Schwann cells](/details-cell/CL0002573), and various cardiac cell populations. This distinct expression pattern suggests potential roles in tissue homeostasis, response to injury, and the maintenance of unique cellular functions in the liver, peripheral nervous system, and heart. ## Cellular Roles and Expression Landscape The expression profile of [LINC02268](/details-gene/101928509) indicates a specialized function rather than a ubiquitous housekeeping role. Its significance is highest in cell types critical for tissue structure and function across different organ systems. The most prominent expression is observed in [hepatic stellate cells](/details-cell/CL0000632) (CSI: 3.33), which are resident pericytes in the liver known for their central role in vitamin A storage in a quiescent state and their transformation into fibrogenic myofibroblasts during liver injury. The second highest significance is in [Schwann cells](/details-cell/CL0002573) (CSI: 2.64), the principal glial cells of the peripheral nervous system responsible for myelin sheath formation and nerve regeneration. Furthermore, [LINC02268](/details-gene/101928509) shows notable significance in the cardiovascular system, specifically within [cardiac muscle cells](/details-cell/CL0000746) (CSI: 1.93) and [cardiac neurons](/details-cell/CL0010022) (CSI: 1.71), suggesting involvement in cardiac function and autonomic regulation. Significant expression is also seen in [mesothelial cells](/details-cell/CL0000077) (CSI: 1.34), which form the protective lining of body cavities. The commonality among these cell types suggests that [LINC02268](/details-gene/101928509) may be involved in cellular processes related to structural support, signaling, and tissue repair. ## Pathways and Molecular Function Detailed functional annotation data, including Gene Ontology (GO) and Reactome pathway information, were not available in the provided dataset. Therefore, the specific molecular pathways and biological processes directly regulated by [LINC02268](/details-gene/101928509) have yet to be formally characterized. Elucidating its binding partners (both protein and nucleic acid) will be crucial for understanding its molecular mechanism of action. ## Research Directions The unique expression pattern of [LINC02268](/details-gene/101928509) in cells central to pathological processes like fibrosis and nerve damage provides a strong foundation for future investigation. ### Proposed Testable Hypotheses 1. **Role in Liver Fibrosis:** Given its top expression in [hepatic stellate cells](/details-cell/CL0000632), [LINC02268](/details-gene/101928509) may be a critical regulator of their activation state. It is hypothesized that [LINC02268](/details-gene/101928509) expression is elevated during liver injury, driving the transition of quiescent stellate cells into pro-fibrotic, alpha-smooth muscle actin (α-SMA)-positive myofibroblasts. 2. **Involvement in Peripheral Neuropathy:** The high significance of [LINC02268](/details-gene/101928509) in [Schwann cells](/details-cell/CL0002573) suggests a functional role in myelination and nerve repair. It is hypothesized that [LINC02268](/details-gene/101928509) modulates the expression of genes essential for myelin sheath formation and that its dysregulation could contribute to the pathology of demyelinating peripheral neuropathies. ### Suggested Key Experiment To test the hypothesis regarding its role in liver fibrosis, a gain-of-function and loss-of-function study in primary [hepatic stellate cells](/details-cell/CL0000632) would be highly informative. Expression of [LINC02268](/details-gene/101928509) could be suppressed using targeted antisense oligonucleotides (ASOs) or induced via a lentiviral overexpression vector. The impact on stellate cell activation could be measured by quantifying changes in key fibrotic markers (e.g., α-SMA, Col1a1) via qPCR and Western blot, assessing cell proliferation, and measuring collagen secretion in response to a pro-fibrotic stimulus like TGF-β1. ### Therapeutic Potential As a lncRNA with a highly specific expression pattern, [LINC02268](/details-gene/101928509) represents an attractive therapeutic target. If proven to be a pro-fibrotic driver in the liver, therapeutic **inhibition** could be a viable strategy for treating liver cirrhosis. RNA-targeting modalities like ASOs could be designed to specifically degrade [LINC02268](/details-gene/101928509) transcripts within [hepatic stellate cells](/details-cell/CL0000632), potentially mitigating the fibrotic response with a reduced risk of off-target effects in other cell types where it is not highly expressed.