Details for: LINC00968

Gene ID: 100507632

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: LINC00968

Ensembl ID: ENSG00000246430

Description: long intergenic non-protein coding RNA 968

Cell Significance Landscape

Significant Cells

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

  • bronchus fibroblast of lung CL2000093
    CSI 4.87
    rCSI 3.95%
    PRS 99.72
  • fibroblast of lung CL0002553
    CSI 4.43
    rCSI 4.12%
    PRS 99.9
  • alveolar type 1 fibroblast cell CL4028004
    CSI 3.98
    rCSI 4.36%
    PRS 99.94
  • adipocyte CL0000136
    CSI 3.49
    rCSI 4.48%
    PRS 98.92
  • alveolar adventitial fibroblast CL4028006
    CSI 2.71
    rCSI 4.28%
    PRS 99.88

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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Legend:
  • Query Gene
  • 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 [LINC00968](/details-gene/100507632) is a long intergenic non-protein coding RNA (lncRNA) located on human chromosome 8q12.1. Expression data indicates that this gene is a significant marker for various mesenchymal cell types. **Overall**, its expression is most prominent in stromal cells, particularly fibroblast populations within the lung, including '[bronchus fibroblast of lung](/details-cell/CL2000093)', '[fibroblast of lung](/details-cell/CL0002553)', and specialized alveolar fibroblasts. Additionally, it shows significant expression in '[adipocyte](/details-cell/CL0000136)', suggesting a potential role in the biology of structural and connective tissues. ## Cellular Roles and Expression Landscape The expression profile of [LINC00968](/details-gene/100507632) points toward a specialized function within the mesenchymal lineage, with a particular enrichment in pulmonary fibroblasts. The gene demonstrates high significance scores in '[bronchus fibroblast of lung](/details-cell/CL2000093)' (CSI: 4.87), '[fibroblast of lung](/details-cell/CL0002553)' (CSI: 4.43), '[alveolar type 1 fibroblast cell](/details-cell/CL4028004)' (CSI: 3.98), and '[alveolar adventitial fibroblast](/details-cell/CL4028006)' (CSI: 2.71). This consistent high expression across multiple lung fibroblast subtypes suggests its involvement in fundamental fibroblast functions such as maintaining tissue architecture, extracellular matrix homeostasis, or responding to tissue injury in the lung. Beyond the pulmonary system, the notable expression of [LINC00968](/details-gene/100507632) in '[adipocyte](/details-cell/CL0000136)' (CSI: 3.49) suggests a broader role in mesenchymal cell biology, potentially related to lipid metabolism, energy storage, or adipogenesis. The lack of cross-contextual data currently limits the ability to determine if this role is static or dynamically regulated under different physiological conditions. ## Pathways and Molecular Function Specific functional annotations for [LINC00968](/details-gene/100507632) are not detailed in the provided data. However, as a lncRNA, it is likely to function through the regulation of gene expression at the epigenetic, transcriptional, or post-transcriptional level. Given its strong expression in fibroblasts, it may be involved in modulating key signaling pathways critical for fibroblast biology, such as the TGF-β, Wnt, or FGF signaling cascades that control cell proliferation, differentiation, and extracellular matrix production. Its role in adipocytes might involve the regulation of key transcription factors controlling adipogenesis, such as PPARγ. ## Research Directions The specific expression pattern of [LINC00968](/details-gene/100507632) in fibroblast populations, particularly within the lung, presents several avenues for future investigation, especially concerning pathological conditions like organ fibrosis. **Testable Hypotheses:** 1. [LINC00968](/details-gene/100507632) acts as a pro-fibrotic regulator in the lung, where its expression is upregulated upon tissue injury, promoting the differentiation of fibroblasts into myofibroblasts and subsequent collagen deposition. 2. In adipose tissue, [LINC00968](/details-gene/100507632) functions as a key regulator of adipocyte differentiation or metabolic homeostasis, with its dysregulation potentially contributing to metabolic disorders. **Proposed Experimental Approach:** To test the hypothesis that [LINC00968](/details-gene/100507632) is involved in pulmonary fibrosis, a loss-of-function study could be conducted. Primary human lung fibroblasts could be transfected with antisense oligonucleotides (ASOs) or siRNA specifically targeting [LINC00968](/details-gene/100507632). Following knockdown, these cells would be stimulated with TGF-β1, a potent pro-fibrotic cytokine. The impact on fibroblast activation could be assessed by measuring changes in the expression of key myofibroblast markers, such as alpha-smooth muscle actin (ACTA2) and Collagen Type I (COL1A1), using qRT-PCR and immunofluorescence. A parallel RNA-sequencing analysis could identify the downstream transcriptional networks regulated by this lncRNA. **Therapeutic Potential:** Given its nature as a lncRNA and its high expression in cell types central to fibrotic diseases, [LINC00968](/details-gene/100507632) represents a potential therapeutic target. If it is shown to be a driver of fibrosis, an **inhibitory** strategy using ASOs or small molecule inhibitors could be explored to treat conditions like idiopathic pulmonary fibrosis (IPF). The apparent specificity for fibroblast and adipocyte lineages may offer a favorable therapeutic window, potentially reducing off-target effects compared to targeting broadly expressed proteins.