Details for: LOC105375022

Gene ID: 105375022

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: LOC105375022

Ensembl ID: ENSG00000272217

Description: uncharacterized LOC105375022

Selected Context(s):  Overall

Cell Significance Landscape

Contexts:

Significant Cells

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

  • basal cell of epidermis CL0002187
    CSI 4.1
    rCSI 7.26%
    PRS 95.93
  • melanocyte of skin CL1000458
    CSI 1.52
    rCSI 2.08%
    PRS 96.88

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 [LOC105375022](/details-gene/105375022) is an uncharacterized non-coding RNA (ncRNA) located on chromosome 6p21.32. Current expression data indicates a highly specialized role, with its significance being almost exclusively confined to cells of the skin. Its most prominent association is with the [basal cell of epidermis](/details-cell/CL0002187), suggesting a potential involvement in epidermal homeostasis, stem cell maintenance, or differentiation processes. ## Cellular Roles and Expression Landscape The expression profile of [LOC105375022](/details-gene/105375022) demonstrates a remarkable degree of tissue specificity. **Overall**, the gene's significance is highest in epidermal cell types. It serves as a strong defining marker for the [basal cell of epidermis](/details-cell/CL0002187), where it has a Cell Significance Index (CSI) of 4.10. These cells are the regenerative stem cells of the epidermis, responsible for creating new keratinocytes and maintaining the skin barrier. The gene also shows notable, albeit lower, significance in the [melanocyte of skin](/details-cell/CL1000458) (CSI: 1.52), the pigment-producing cells residing in the basal layer. The highly restricted expression pattern suggests that [LOC105375022](/details-gene/105375022) is not a broadly expressed housekeeping gene but rather a specialist ncRNA involved in cutaneous biology. ## Pathways and Molecular Function As an uncharacterized ncRNA, the precise molecular function of [LOC105375022](/details-gene/105375022) remains unknown. There are currently no established associations with specific Gene Ontology (GO) terms or Reactome pathways. However, based on its specific expression in [basal cells of the epidermis](/details-cell/CL0002187), it is plausible that it participates in regulatory networks controlling keratinocyte proliferation, stratification, and differentiation, which are fundamental processes for maintaining skin integrity. As an ncRNA, it could potentially function by regulating the expression of nearby protein-coding genes, acting as a scaffold for protein complexes, or sponging microRNAs involved in epidermal development. ## Research Directions The highly specific expression pattern of [LOC105375022](/details-gene/105375022) in epidermal basal cells makes it an intriguing candidate for functional investigation, particularly in the context of skin health and disease. ### Proposed Hypotheses 1. **[LOC105375022](/details-gene/105375022) is a critical regulator of keratinocyte differentiation.** Its high expression in basal stem cells may serve to maintain their undifferentiated, proliferative state. Downregulation of this ncRNA could be a necessary trigger for these cells to commit to terminal differentiation and migrate through the epidermal layers. 2. **Dysregulation of [LOC105375022](/details-gene/105375022) contributes to hyperproliferative skin disorders.** In conditions such as psoriasis or basal cell carcinoma, where basal cell proliferation is uncontrolled, the expression or function of [LOC105375022](/details-gene/105375022) may be altered, contributing to the disease phenotype. ### Key Experiments To test the hypothesis that **[LOC105375022](/details-gene/105375022) regulates keratinocyte differentiation**, a loss-of-function study could be performed. Using CRISPR interference (CRISPRi) or antisense oligonucleotides (ASOs) to specifically knock down [LOC105375022](/details-gene/105375022) in primary human keratinocyte cultures would be a direct approach. The impact on cellular phenotype could be assessed by monitoring proliferation rates (e.g., via EdU incorporation assays) and by quantifying the expression of key differentiation markers (e.g., Keratin 1, Keratin 10, Loricrin, and Involucrin) using RT-qPCR and immunofluorescence over a time course of induced differentiation. ### Therapeutic Potential Given its high specificity for epidermal cells, [LOC105375022](/details-gene/105375022) presents an attractive profile for a potential therapeutic target. If it is found to drive proliferation, it could be a target for **inhibition** in skin cancers or psoriasis. As an ncRNA, it would be amenable to targeting with nucleic acid-based therapies like ASOs or siRNAs, which could be delivered topically to minimize systemic side effects. Conversely, if it proves essential for proper skin barrier formation, it might be a target for **activation** or stabilization in conditions characterized by a defective skin barrier. However, its therapeutic potential is entirely contingent on future research elucidating its currently unknown function.